qache \
string \
bbuf \
- getopt \
- xml
+ getopt
LIBUCW_INCLUDES= \
lib.h config.h threads.h \
base64.h base224.h \
qache.h \
kmp.h kmp-search.h binsearch.h \
- partmap.h \
- xml.h
+ partmap.h
ifdef CONFIG_UCW_THREADS
# Some modules require threading
$(o)/lib/hashfunc.o $(o)/lib/hashfunc.oo: CFLAGS += -funroll-loops
$(o)/lib/lizard.o: CFLAGS += $(COPT2) -funroll-loops
-$(o)/lib/xml.o: $(o)/lib/xml-ucat.h
-$(o)/lib/xml-ucat.h: $(s)/lib/xml-ucat.pl
- $(M)GEN $@
- $(Q)$< >$@
-
$(o)/lib/db-test: $(o)/lib/db-test.o $(LIBUCW)
$(o)/lib/db-tool: $(o)/lib/db-tool.o $(LIBUCW)
$(o)/lib/conf-test: $(o)/lib/conf-test.o $(LIBUCW)
+++ /dev/null
-#!/usr/bin/perl
-#
-# UCW Library -- Character map for the XML parser
-#
-# (c) 2007 Pavel Charvat <pchar@ucw.cz>
-#
-# This software may be freely distributed and used according to the terms
-# of the GNU Lesser General Public License.
-#
-
-my @cat = ();
-my @lcat = ();
-my %ids = ();
-my %cls = ();
-for (my $i = 0; $i < 0x10000; $i++) { $cat[$i] = 0; }
-for (my $i = 0; $i < 0x11; $i++) { $lcat[$i] = 0; }
-
-my @white = (0x9, 0xA, 0xD, 0x20);
-my @base_char_1_0 = (
- [0x0041,0x005A], [0x0061,0x007A], [0x00C0,0x00D6], [0x00D8,0x00F6], [0x00F8,0x00FF], [0x0100,0x0131],
- [0x0134,0x013E], [0x0141,0x0148], [0x014A,0x017E], [0x0180,0x01C3], [0x01CD,0x01F0], [0x01F4,0x01F5],
- [0x01FA,0x0217], [0x0250,0x02A8], [0x02BB,0x02C1], 0x0386, [0x0388,0x038A], 0x038C, [0x038E,0x03A1],
- [0x03A3,0x03CE], [0x03D0,0x03D6], 0x03DA, 0x03DC, 0x03DE, 0x03E0, [0x03E2,0x03F3], [0x0401,0x040C],
- [0x040E,0x044F], [0x0451,0x045C], [0x045E,0x0481], [0x0490,0x04C4], [0x04C7,0x04C8], [0x04CB,0x04CC],
- [0x04D0,0x04EB], [0x04EE,0x04F5], [0x04F8,0x04F9], [0x0531,0x0556], 0x0559, [0x0561,0x0586], [0x05D0,0x05EA],
- [0x05F0,0x05F2], [0x0621,0x063A], [0x0641,0x064A], [0x0671,0x06B7], [0x06BA,0x06BE], [0x06C0,0x06CE],
- [0x06D0,0x06D3], 0x06D5, [0x06E5,0x06E6], [0x0905,0x0939], 0x093D, [0x0958,0x0961], [0x0985,0x098C],
- [0x098F,0x0990], [0x0993,0x09A8], [0x09AA,0x09B0], 0x09B2, [0x09B6,0x09B9], [0x09DC,0x09DD], [0x09DF,0x09E1],
- [0x09F0,0x09F1], [0x0A05,0x0A0A], [0x0A0F,0x0A10], [0x0A13,0x0A28], [0x0A2A,0x0A30], [0x0A32,0x0A33],
- [0x0A35,0x0A36], [0x0A38,0x0A39], [0x0A59,0x0A5C], 0x0A5E, [0x0A72,0x0A74], [0x0A85,0x0A8B], 0x0A8D,
- [0x0A8F,0x0A91], [0x0A93,0x0AA8], [0x0AAA,0x0AB0], [0x0AB2,0x0AB3], [0x0AB5,0x0AB9], 0x0ABD, 0x0AE0,
- [0x0B05,0x0B0C], [0x0B0F,0x0B10], [0x0B13,0x0B28], [0x0B2A,0x0B30], [0x0B32,0x0B33], [0x0B36,0x0B39],
- 0x0B3D, [0x0B5C,0x0B5D], [0x0B5F,0x0B61], [0x0B85,0x0B8A], [0x0B8E,0x0B90], [0x0B92,0x0B95], [0x0B99,0x0B9A],
- 0x0B9C, [0x0B9E,0x0B9F], [0x0BA3,0x0BA4], [0x0BA8,0x0BAA], [0x0BAE,0x0BB5], [0x0BB7,0x0BB9], [0x0C05,0x0C0C],
- [0x0C0E,0x0C10], [0x0C12,0x0C28], [0x0C2A,0x0C33], [0x0C35,0x0C39], [0x0C60,0x0C61], [0x0C85,0x0C8C],
- [0x0C8E,0x0C90], [0x0C92,0x0CA8], [0x0CAA,0x0CB3], [0x0CB5,0x0CB9], 0x0CDE, [0x0CE0,0x0CE1], [0x0D05,0x0D0C],
- [0x0D0E,0x0D10], [0x0D12,0x0D28], [0x0D2A,0x0D39], [0x0D60,0x0D61], [0x0E01,0x0E2E], 0x0E30, [0x0E32,0x0E33],
- [0x0E40,0x0E45], [0x0E81,0x0E82], 0x0E84, [0x0E87,0x0E88], 0x0E8A, 0x0E8D, [0x0E94,0x0E97], [0x0E99,0x0E9F],
- [0x0EA1,0x0EA3], 0x0EA5, 0x0EA7, [0x0EAA,0x0EAB], [0x0EAD,0x0EAE], 0x0EB0, [0x0EB2,0x0EB3], 0x0EBD,
- [0x0EC0,0x0EC4], [0x0F40,0x0F47], [0x0F49,0x0F69], [0x10A0,0x10C5], [0x10D0,0x10F6], 0x1100, [0x1102,0x1103],
- [0x1105,0x1107], 0x1109, [0x110B,0x110C], [0x110E,0x1112], 0x113C, 0x113E, 0x1140, 0x114C, 0x114E, 0x1150,
- [0x1154,0x1155], 0x1159, [0x115F,0x1161], 0x1163, 0x1165, 0x1167, 0x1169, [0x116D,0x116E], [0x1172,0x1173],
- 0x1175, 0x119E, 0x11A8, 0x11AB, [0x11AE,0x11AF], [0x11B7,0x11B8], 0x11BA, [0x11BC,0x11C2], 0x11EB, 0x11F0,
- 0x11F9, [0x1E00,0x1E9B], [0x1EA0,0x1EF9], [0x1F00,0x1F15], [0x1F18,0x1F1D], [0x1F20,0x1F45], [0x1F48,0x1F4D],
- [0x1F50,0x1F57], 0x1F59, 0x1F5B, 0x1F5D, [0x1F5F,0x1F7D], [0x1F80,0x1FB4], [0x1FB6,0x1FBC], 0x1FBE,
- [0x1FC2,0x1FC4], [0x1FC6,0x1FCC], [0x1FD0,0x1FD3], [0x1FD6,0x1FDB], [0x1FE0,0x1FEC], [0x1FF2,0x1FF4],
- [0x1FF6,0x1FFC], 0x2126, [0x212A,0x212B], 0x212E, [0x2180,0x2182], [0x3041,0x3094], [0x30A1,0x30FA],
- [0x3105,0x312C], [0xAC00,0xD7A3]);
-my @ideographic_1_0 = ([0x4E00,0x9FA5], 0x3007, [0x3021,0x3029]);
-my @combining_char_1_0 = (
- [0x0300,0x0345], [0x0360,0x0361], [0x0483,0x0486], [0x0591,0x05A1], [0x05A3,0x05B9], [0x05BB,0x05BD],
- 0x05BF, [0x05C1,0x05C2], 0x05C4, [0x064B,0x0652], 0x0670, [0x06D6,0x06DC], [0x06DD,0x06DF], [0x06E0,0x06E4],
- [0x06E7,0x06E8], [0x06EA,0x06ED], [0x0901,0x0903], 0x093C, [0x093E,0x094C], 0x094D, [0x0951,0x0954],
- [0x0962,0x0963], [0x0981,0x0983], 0x09BC, 0x09BE, 0x09BF, [0x09C0,0x09C4], [0x09C7,0x09C8], [0x09CB,0x09CD],
- 0x09D7, [0x09E2,0x09E3], 0x0A02, 0x0A3C, 0x0A3E, 0x0A3F, [0x0A40,0x0A42], [0x0A47,0x0A48], [0x0A4B,0x0A4D],
- [0x0A70,0x0A71], [0x0A81,0x0A83], 0x0ABC, [0x0ABE,0x0AC5], [0x0AC7,0x0AC9], [0x0ACB,0x0ACD], [0x0B01,0x0B03],
- 0x0B3C, [0x0B3E,0x0B43], [0x0B47,0x0B48], [0x0B4B,0x0B4D], [0x0B56,0x0B57], [0x0B82,0x0B83], [0x0BBE,0x0BC2],
- [0x0BC6,0x0BC8], [0x0BCA,0x0BCD], 0x0BD7, [0x0C01,0x0C03], [0x0C3E,0x0C44], [0x0C46,0x0C48], [0x0C4A,0x0C4D],
- [0x0C55,0x0C56], [0x0C82,0x0C83], [0x0CBE,0x0CC4], [0x0CC6,0x0CC8], [0x0CCA,0x0CCD], [0x0CD5,0x0CD6],
- [0x0D02,0x0D03], [0x0D3E,0x0D43], [0x0D46,0x0D48], [0x0D4A,0x0D4D], 0x0D57, 0x0E31, [0x0E34,0x0E3A],
- [0x0E47,0x0E4E], 0x0EB1, [0x0EB4,0x0EB9], [0x0EBB,0x0EBC], [0x0EC8,0x0ECD], [0x0F18,0x0F19], 0x0F35,
- 0x0F37, 0x0F39, 0x0F3E, 0x0F3F, [0x0F71,0x0F84], [0x0F86,0x0F8B], [0x0F90,0x0F95], 0x0F97, [0x0F99,0x0FAD],
- [0x0FB1,0x0FB7], 0x0FB9, [0x20D0,0x20DC], 0x20E1, [0x302A,0x302F], 0x3099, 0x309A);
-my @digit_1_0 = (
- [0x0030,0x0039], [0x0660,0x0669], [0x06F0,0x06F9], [0x0966,0x096F], [0x09E6,0x09EF], [0x0A66,0x0A6F],
- [0x0AE6,0x0AEF], [0x0B66,0x0B6F], [0x0BE7,0x0BEF], [0x0C66,0x0C6F], [0x0CE6,0x0CEF], [0x0D66,0x0D6F],
- [0x0E50,0x0E59], [0x0ED0,0x0ED9], [0x0F20,0x0F29]);
-my @extender_1_0 = (
- 0x00B7, 0x02D0, 0x02D1, 0x0387, 0x0640, 0x0E46, 0x0EC6, 0x3005, [0x3031,0x3035], [0x309D,0x309E], [0x30FC,0x30FE]);
-my @sname_1_1 = (
- "[:A-Z_a-z]", [0xC0,0xD6], [0xD8,0xF6], [0xF8,0x2FF], [0x370,0x37D], [0x37F,0x1FFF],
- [0x200C,0x200D], [0x2070,0x218F], [0x2C00,0x2FEF], [0x3001,0xD7FF], [0xF900,0xFDCF], [0xFDF0,0xFFFD], [0x10000,0xEFFFF]);
-
-set("WHITE", @white);
-set("NEW_LINE_1_0", 0xA, 0xD);
-set("NEW_LINE_1_1", 0xA, 0xD, 0x85, 0x2028);
-set("DIGIT", "[0-9]");
-set("XDIGIT", "[0-9a-fA-F]");
-set("VALID_1_0", @white, [0x20,0xD7FF], [0xE000,0xFFFD], [0x10000,0x10FFFF]);
-set("VALID_1_1", [0x1,0xD7FF], [0xE000,0xFFFD], [0x10000,0x10FFFF]);
-set("UNRESTRICTED_1_1", @white, [0x20,0x7E], 0x85, [0xA0,0xD7FF], [0xE000,0xFFFD], [0x10000,0x10FFFF]);
-set("PUBID", 0x20, 0xD, 0xA, "[-a-zA-Z0-9'()+,./:=?:!*#@\$_%]");
-set("ENC_SNAME", "[a-zA-Z]");
-set("ENC_NAME", "[-a-zA-Z0-9._]");
-set("SNAME_1_0", "[_:]", @base_char_1_0, @ideographic_1_0);
-set("NAME_1_0", "[-_:.]", @base_char_1_0, @ideographic_1_0, @combining_char_1_0, @digit_1_0, @extender_1_0);
-set("SNAME_1_1", @sname_1_1);
-set("NAME_1_1", @sname_1_1, "[-.0-9]", 0xB7, [0x0300,0x036F], [0x203F,0x2040]);
-
-print "/* Automatically generated by xml-ucat.pl */\n\n";
-find_cls();
-gen_enum();
-gen_tabs();
-
-sub set {
- my $id = shift;
- $ids{$id} = scalar keys(%ids) if !defined($ids{$id});
- my $mask = 1 << $ids{$id};
- foreach my $i (@_) {
- if (ref($i) eq "ARRAY") {
- my $j = $i->[0];
- for (; $j <= $i->[1] && $j < 0x10000; $j++) { $cat[$j] |= $mask; }
- for (; $j <= $i->[1]; $j += 0x10000) { $lcat[$j >> 16] |= $mask; }
- }
- elsif ($i =~ /^\[/) { for (my $j=0; $j < 128; $j++) { if (chr($j) =~ /$i/) { $cat[$j] |= $mask; } } }
- else { $cat[$i] |= $mask; }
- }
-}
-
-sub find_cls {
- foreach (my $i=0; $i<@cat; $i++) { $cls{$cat[$i]} = scalar keys(%cls) if !defined($cls{$cat[$i]}); }
- foreach (my $i=0; $i<@lcat; $i++) { $cls{$lcat[$i]} = scalar keys(%cls) if !defined($cls{$lcat[$i]}); }
-}
-
-sub gen_enum {
- print "enum xml_char_type {\n";
- foreach my $id (sort keys %ids) {
- my $mask = 0;
- foreach my $i (keys %cls) {
- $mask |= 1 << $cls{$i} if $cls{$i} && ($i & (1 << $ids{$id}));
- }
- printf " XML_CHAR_%-20s = 0x%08x,\n", $id, $mask;
- }
- print "};\n\n";
-}
-
-sub gen_tabs {
- my @tab = ();
- my %hash = ();
- print "static const uns xml_char_tab1[] = {\n ";
- for (my $t=0; $t<256; $t++) {
- my $i = $t * 256;
- my @x = ();
- for (my $j=0; $j<256; $j += 32) {
- push @x, join(",", map($cls{$_}, @cat[$i+$j..$i+$j+31]));
- }
- my $sub = " " . join(",\n ", @x);
- if (!defined($hash{$sub})) {
- $hash{$sub} = 256 * scalar @tab;
- push @tab, $sub;
- }
- printf("0x%x", $hash{$sub});
- print((~$t & 15) ? "," : ($t < 255) ? ",\n " : "\n};\n\n");
- }
-
- print "static const byte xml_char_tab2[] = {\n";
- print join(",\n\n", @tab);
- print "\n};\n\n";
-
- my @l = ();
- for (my $i=0; $i<0x11; $i++) {
- push @l, sprintf("%d", $cls{$lcat[$i]});
- }
- print "static const byte xml_char_tab3[] = {" . join(",", @l) . "};\n";
-}
+++ /dev/null
-/*
- * UCW Library -- A simple XML parser
- *
- * (c) 2007 Pavel Charvat <pchar@ucw.cz>
- *
- * This software may be freely distributed and used according to the terms
- * of the GNU Lesser General Public License.
- */
-
-/* TODO:
- * - various character encodings
- * - iface
- * - stack-like memory handling where possible
- */
-
-#define LOCAL_DEBUG
-
-#include "lib/lib.h"
-#include "lib/mempool.h"
-#include "lib/fastbuf.h"
-#include "lib/ff-utf8.h"
-#include "lib/chartype.h"
-#include "lib/unicode.h"
-#include "lib/xml.h"
-#include "lib/hashfunc.h"
-#include "lib/stkstring.h"
-#include "charset/unicat.h"
-
-#include <setjmp.h>
-
-/*** Error handling ***/
-
-static void NONRET
-xml_throw(struct xml_context *ctx)
-{
- ASSERT(ctx->err_code && ctx->throw_buf);
- longjmp(*(jmp_buf *)ctx->throw_buf, ctx->err_code);
-}
-
-static void
-xml_warn(struct xml_context *ctx, const char *format, ...)
-{
- if (ctx->h_warn)
- {
- va_list args;
- va_start(args, format);
- ctx->err_msg = stk_vprintf(format, args);
- ctx->err_code = XML_ERR_WARN;
- va_end(args);
- ctx->h_warn(ctx);
- ctx->err_msg = NULL;
- ctx->err_code = XML_ERR_OK;
- }
-}
-
-static void
-xml_error(struct xml_context *ctx, const char *format, ...)
-{
- if (ctx->h_error)
- {
- va_list args;
- va_start(args, format);
- ctx->err_msg = stk_vprintf(format, args);
- ctx->err_code = XML_ERR_ERROR;
- va_end(args);
- ctx->h_error(ctx);
- ctx->err_msg = NULL;
- ctx->err_code = XML_ERR_OK;
- }
-}
-
-static void NONRET
-xml_fatal(struct xml_context *ctx, const char *format, ...)
-{
- va_list args;
- va_start(args, format);
- ctx->err_msg = mp_vprintf(ctx->pool, format, args);
- ctx->err_code = XML_ERR_FATAL;
- ctx->state = XML_STATE_FATAL;
- va_end(args);
- if (ctx->h_fatal)
- ctx->h_fatal(ctx);
- xml_throw(ctx);
-}
-
-/*** Charecter categorization ***/
-
-#include "obj/lib/xml-ucat.h"
-
-static inline uns
-xml_char_cat(uns c)
-{
- if (c < 0x10000)
- return 1U << xml_char_tab2[(c & 0xff) + xml_char_tab1[c >> 8]];
- else if (likely(c < 0x110000))
- return 1U << xml_char_tab3[c >> 16];
- else
- return 1;
-}
-
-/*** Reading of document/external entities ***/
-
-static void NONRET
-xml_eof(struct xml_context *ctx)
-{
- ctx->err_msg = "Unexpected EOF";
- ctx->err_code = XML_ERR_EOF;
- xml_throw(ctx);
-}
-
-static void NONRET
-xml_fatal_nested(struct xml_context *ctx)
-{
- xml_fatal(ctx, "Entity is not tested correctly");
-}
-
-static inline void
-xml_inc_depth(struct xml_context *ctx)
-{
- ctx->depth++;
-}
-
-static inline void
-xml_dec_depth(struct xml_context *ctx)
-{
- if (unlikely(!ctx->depth))
- xml_fatal_nested(ctx);
- ctx->depth--;
-}
-
-static void
-xml_push_source(struct xml_context *ctx, struct fastbuf *fb, uns flags)
-{
- DBG("XML: xml_push_source");
- struct xml_source *osrc = ctx->sources;
- if (osrc)
- {
- osrc->bptr = ctx->bptr;
- osrc->bstop = ctx->bstop;
- osrc->depth = ctx->depth;
- }
- struct xml_source *src = mp_alloc(ctx->pool, sizeof(*src));
- src->next = osrc;
- src->flags = flags;
- src->fb = fb;
- ctx->depth = 0;
- ctx->sources = src;
- ctx->bstop = ctx->bptr = src->buf;
- if (flags & XML_SRC_SURROUND)
- {
- *ctx->bptr++ = 0x20;
- *ctx->bptr++ = xml_char_cat(0x20);
- }
-}
-
-void
-xml_set_source(struct xml_context *ctx, struct fastbuf *fb)
-{
- xml_push_source(ctx, fb, XML_SRC_DOCUMENT | XML_SRC_DECL);
-}
-
-static void
-xml_pop_source(struct xml_context *ctx)
-{
- DBG("XML: xml_pop_source");
- if (unlikely(ctx->depth))
- xml_fatal(ctx, "Invalid entity nesting");
- struct xml_source *src = ctx->sources;
- bclose(src->fb);
- ctx->sources = src = src->next;
- if (unlikely(!src))
- xml_eof(ctx);
- ctx->bptr = src->bptr;
- ctx->bstop = src->bstop;
- ctx->depth = src->depth;
-}
-
-static uns
-xml_error_restricted(struct xml_context *ctx, uns c)
-{
- xml_error(ctx, "Restricted char U+%04X", c);
- return UNI_REPLACEMENT;
-}
-
-static void xml_parse_decl(struct xml_context *ctx);
-
-static void
-xml_refill(struct xml_context *ctx)
-{
- // FIXME:
- // -- various encodings, especially UTF-16
- // -- track col/row numbers
- // -- report incorrect encoding
- // -- deal with forbidden XML 1.1 newlines in xml/text decl
- do
- {
- struct xml_source *src = ctx->sources;
- uns c, t, t1, t2, f = src->flags;
- if (f & XML_SRC_EOF)
- xml_pop_source(ctx);
- else if (f & XML_SRC_DECL)
- xml_parse_decl(ctx);
- else
- {
- struct fastbuf *fb = src->fb;
- if (ctx->bptr == ctx->bstop)
- ctx->bptr = ctx->bstop = src->buf;
- u32 *bend = src->buf + ARRAY_SIZE(src->buf), *bstop = ctx->bstop, *last_0xd = (f & XML_SRC_NEW_LINE) ? bstop : bend;
- if (ctx->flags & XML_FLAG_VERSION_1_1)
- {
- t2 = XML_CHAR_NEW_LINE_1_1;
- t1 = XML_CHAR_UNRESTRICTED_1_1 & ~t2;
- }
- else
- {
- t2 = XML_CHAR_NEW_LINE_1_0;
- t1 = XML_CHAR_VALID_1_0 & ~t2;
- }
- while (bstop < bend)
- {
- c = bget_utf8_32(fb);
- t = xml_char_cat(c);
- if (t & t1)
- {
- /* Typical branch */
- *bstop++ = c;
- *bstop++ = t;
- }
- else if (t & t2)
- {
- /* New line
- * XML 1.0: 0xA | 0xD | 0xD 0xA
- * XML 1.1: 0xA | 0xD | 0xD 0xA | 0x85 | 0xD 0x85 | 0x2028 */
- *bstop++ = 0xa;
- *bstop++ = xml_char_cat(0xa);
- if (c == 0xd)
- last_0xd = bstop;
- else if (c != 0x2028 && last_0xd != bstop - 2)
- bstop -= 2;
- }
- else if ((int)c >= 0)
- {
- /* Restricted character */
- c = xml_error_restricted(ctx, c);
- *bstop++ = c;
- *bstop++ = xml_char_cat(c);
- }
- else
- {
- /* EOF */
- if (f & XML_SRC_SURROUND)
- {
- *bstop++ = 0x20;
- *bstop++ = xml_char_cat(0x20);
- }
- f |= XML_SRC_EOF;
- break;
- }
- }
- if (last_0xd == bstop)
- f |= XML_SRC_NEW_LINE;
- else
- f &= ~XML_SRC_NEW_LINE;
- ctx->sources->flags = f;
- ctx->bstop = bstop;
- DBG("XML: refilled %u characters", (uns)(ctx->bstop - ctx->bptr) / 2);
- }
- }
- while (ctx->bptr == ctx->bstop);
-}
-
-static inline uns
-xml_peek_char(struct xml_context *ctx)
-{
- if (ctx->bptr == ctx->bstop)
- xml_refill(ctx);
- return ctx->bptr[0];
-}
-
-static inline uns
-xml_peek_cat(struct xml_context *ctx)
-{
- if (ctx->bptr == ctx->bstop)
- xml_refill(ctx);
- return ctx->bptr[1];
-}
-
-static inline uns
-xml_get_char(struct xml_context *ctx)
-{
- uns c = xml_peek_char(ctx);
- ctx->bptr += 2;
- return c;
-}
-
-static inline uns
-xml_get_cat(struct xml_context *ctx)
-{
- uns c = xml_peek_cat(ctx);
- ctx->bptr += 2;
- return c;
-}
-
-static inline uns
-xml_last_char(struct xml_context *ctx)
-{
- return ctx->bptr[-2];
-}
-
-static inline uns
-xml_last_cat(struct xml_context *ctx)
-{
- return ctx->bptr[-1];
-}
-
-static inline uns
-xml_skip_char(struct xml_context *ctx)
-{
- uns c = ctx->bptr[0];
- ctx->bptr += 2;
- return c;
-}
-
-static inline uns
-xml_unget_char(struct xml_context *ctx)
-{
- return *(ctx->bptr -= 2);
-}
-
-/*** Basic parsing ***/
-
-static void NONRET
-xml_fatal_expected(struct xml_context *ctx, uns c)
-{
- xml_fatal(ctx, "Expected '%c'", c);
-}
-
-static void NONRET
-xml_fatal_expected_white(struct xml_context *ctx)
-{
- xml_fatal(ctx, "Expected a white space");
-}
-
-static void NONRET
-xml_fatal_expected_quot(struct xml_context *ctx)
-{
- xml_fatal(ctx, "Expected a quotation mark");
-}
-
-static inline uns
-xml_parse_white(struct xml_context *ctx, uns mandatory)
-{
- /* mandatory=1 -> S ::= (#x20 | #x9 | #xD | #xA)+
- * mandatory=0 -> S? */
- uns cnt = 0;
- while (xml_peek_cat(ctx) & XML_CHAR_WHITE)
- {
- xml_skip_char(ctx);
- cnt++;
- }
- if (unlikely(mandatory && !cnt))
- xml_fatal_expected_white(ctx);
- return cnt;
-}
-
-static inline void
-xml_parse_char(struct xml_context *ctx, uns c)
-{
- /* Consumes a given Unicode character */
- if (unlikely(c != xml_get_char(ctx)))
- xml_fatal_expected(ctx, c);
-}
-
-static inline void
-xml_parse_seq(struct xml_context *ctx, const char *seq)
-{
- /* Consumes a given sequence of ASCII characters */
- while (*seq)
- xml_parse_char(ctx, *seq++);
-}
-
-static void
-xml_parse_eq(struct xml_context *ctx)
-{
- /* Eq ::= S? '=' S? */
- xml_parse_white(ctx, 0);
- xml_parse_char(ctx, '=');
- xml_parse_white(ctx, 0);
-}
-
-static inline uns
-xml_parse_quote(struct xml_context *ctx)
-{
- /* "'" | '"' */
- uns c = xml_get_char(ctx);
- if (unlikely(c != '\'' && c != '\"'))
- xml_fatal_expected_quot(ctx);
- return c;
-}
-
-/* Names and nmtokens */
-
-static char *
-xml_parse_string(struct xml_context *ctx, uns first_cat, uns next_cat, char *err)
-{
- char *p = mp_start_noalign(ctx->pool, 1);
- if (unlikely(!(xml_peek_cat(ctx) & first_cat)))
- xml_fatal(ctx, "%s", err);
- do
- {
- p = mp_spread(ctx->pool, p, 5);
- p = utf8_32_put(p, xml_skip_char(ctx));
- }
- while (xml_peek_cat(ctx) & next_cat);
- *p++ = 0;
- return mp_end(ctx->pool, p);
-}
-
-static void
-xml_skip_string(struct xml_context *ctx, uns first_cat, uns next_cat, char *err)
-{
- if (unlikely(!(xml_get_cat(ctx) & first_cat)))
- xml_fatal(ctx, "%s", err);
- while (xml_peek_cat(ctx) & next_cat)
- xml_skip_char(ctx);
-}
-
-static char *
-xml_parse_name(struct xml_context *ctx)
-{
- /* Name ::= NameStartChar (NameChar)* */
- return xml_parse_string(ctx,
- !(ctx->flags & XML_FLAG_VERSION_1_1) ? XML_CHAR_SNAME_1_0 : XML_CHAR_SNAME_1_1,
- !(ctx->flags & XML_FLAG_VERSION_1_1) ? XML_CHAR_NAME_1_0 : XML_CHAR_NAME_1_1,
- "Expected a name");
-}
-
-static void
-xml_skip_name(struct xml_context *ctx)
-{
- xml_skip_string(ctx,
- !(ctx->flags & XML_FLAG_VERSION_1_1) ? XML_CHAR_SNAME_1_0 : XML_CHAR_SNAME_1_1,
- !(ctx->flags & XML_FLAG_VERSION_1_1) ? XML_CHAR_NAME_1_0 : XML_CHAR_NAME_1_1,
- "Expected a name");
-}
-
-static char *
-xml_parse_nmtoken(struct xml_context *ctx)
-{
- /* Nmtoken ::= (NameChar)+ */
- uns cat = !(ctx->flags & XML_FLAG_VERSION_1_1) ? XML_CHAR_NAME_1_0 : XML_CHAR_NAME_1_1;
- return xml_parse_string(ctx, cat, cat, "Expected a nmtoken");
-}
-
-/* Simple literals */
-
-static char *
-xml_parse_system_literal(struct xml_context *ctx)
-{
- /* SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'") */
- char *p = mp_start_noalign(ctx->pool, 1);
- uns q = xml_parse_quote(ctx), c;
- while ((c = xml_get_char(ctx)) != q)
- {
- p = mp_spread(ctx->pool, p, 5);
- p = utf8_32_put(p, c);
- }
- *p++ = 0;
- return mp_end(ctx->pool, p);
-}
-
-static char *
-xml_parse_pubid_literal(struct xml_context *ctx)
-{
- /* PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'" */
- char *p = mp_start_noalign(ctx->pool, 1);
- uns q = xml_parse_quote(ctx), c;
- while ((c = xml_get_char(ctx)) != q)
- {
- if (unlikely(!(xml_last_cat(ctx) & XML_CHAR_PUBID)))
- xml_fatal(ctx, "Expected a pubid character");
- p = mp_spread(ctx->pool, p, 2);
- *p++ = c;
- }
- *p++ = 0;
- return mp_end(ctx->pool, p);
-}
-
-static char *
-xml_parse_encoding_name(struct xml_context *ctx)
-{
- /* EncName ::= '"' [A-Za-z] ([A-Za-z0-9._] | '-')* '"' | "'" [A-Za-z] ([A-Za-z0-9._] | '-')* "'" */
- char *p = mp_start_noalign(ctx->pool, 1);
- uns q = xml_parse_quote(ctx);
- if (unlikely(!(xml_peek_cat(ctx) & XML_CHAR_ENC_SNAME)))
- xml_fatal(ctx, "Invalid character in the encoding name");
- while(1)
- {
- p = mp_spread(ctx->pool, p, 2);
- *p++ = xml_skip_char(ctx);
- if (xml_get_char(ctx) == q)
- break;
- if (unlikely(!(xml_last_cat(ctx) & XML_CHAR_ENC_NAME)))
- xml_fatal(ctx, "Invalid character in the encoding name");
- }
- *p++ = 0;
- return mp_end(ctx->pool, p);
-}
-
-/* Document/external entity header */
-
-static void
-xml_detect_encoding(struct xml_context *ctx)
-{
- DBG("XML: xml_detect_encoding");
- struct xml_source *src = ctx->sources;
- struct fastbuf *fb = src->fb;
- char *detected_encoding = NULL;
- uns x = 0, l = 0, c, z = 1;
- while (l < 4)
- {
- if (!~(c = bgetc(fb)))
- {
- src->flags |= XML_SRC_EOF;
- break;
- }
- else if (!c || c >= 0xfe || c == 0xa7 || c == 0x94)
- z = 0;
- else if ((c < 0x3c || c > 0x78))
- {
- bungetc(fb);
- break;
- }
- x = (x << 8) + c;
- l++;
- }
- if (z)
- z = x;
- else if (l == 2)
- switch (x)
- {
- case 0xFEFF:
- xml_fatal(ctx, "UTF-16BE encoding not supported");
- case 0xFFFE:
- xml_fatal(ctx, "UTF-16LE encoding not supported");
- default:
- goto cannot_detect;
- }
- else if (l == 4)
- switch (x)
- {
- case 0x0000FEFF:
- xml_fatal(ctx, "UCS-4BE encoding not supported");
- case 0xFFFE0000:
- xml_fatal(ctx, "UCS-4LE encoding not supported");
- case 0x0000FFFE:
- xml_fatal(ctx, "UCS-4 encoding (order 2143) not supported");
- case 0xFEFF0000:
- xml_fatal(ctx, "UCS-4 encoding (order 3412) not supported");
- case 0x0000003c:
- xml_fatal(ctx, "UCS-4BE encoding not supported");
- case 0x3c000000:
- xml_fatal(ctx, "UCS-4LE encoding not supported");
- case 0x00003c00:
- xml_fatal(ctx, "UCS-4 encoding (order 2143) not supported");
- case 0x003c0000:
- xml_fatal(ctx, "UCS-4 encoding (order 3412) not supported");
- case 0x003c003F:
- xml_fatal(ctx, "UTF-16BE encoding not supported");
- case 0x3C003F00:
- xml_fatal(ctx, "UTF-16LE encoding not supported");
- case 0x3C3F786D:
- xml_fatal(ctx, "EBCDIC encoding not supported");
- default:
- goto cannot_detect;
- }
- else
-cannot_detect:
- xml_fatal(ctx, "Cannot detect the encoding");
- ctx->bptr = ctx->bstop = src->buf + 8;
- while (z)
- {
- c = z & 0xff;
- z >>= 8;
- *--ctx->bptr = xml_char_cat(c);
- *--ctx->bptr = c;
- }
- if (!detected_encoding && ctx->bstop == ctx->bptr && xml_peek_char(ctx) == 0xfeff)
- xml_skip_char(ctx);
- DBG("XML: Detected encoding: %s", detected_encoding ? : "UTF-8");
- if (!(src->flags & XML_SRC_EOF))
- xml_refill(ctx);
-}
-
-static void
-xml_parse_decl(struct xml_context *ctx)
-{
- DBG("XML: xml_parse_decl");
- ctx->sources->flags &= ~XML_SRC_DECL;
- xml_detect_encoding(ctx);
- uns document = ctx->sources->flags & XML_SRC_DOCUMENT;
- u32 *bptr = ctx->bptr;
- uns have_decl =
- (12 <= ctx->bstop - ctx->bptr &&
- bptr[0] == '<' && bptr[2] == '?' && (bptr[4] & 0xdf) == 'X' && (bptr[6] & 0xdf) == 'M' && (bptr[8] & 0xdf) == 'L' &&
- (bptr[11] & XML_CHAR_WHITE));
- if (!have_decl)
- {
- if (document)
- xml_fatal(ctx, "Missing or corrupted XML declaration header");
- return;
- }
- ctx->bptr += 12;
-
- /* FIXME: the header must not contain exotic newlines */
- xml_parse_white(ctx, 0);
-
- if (xml_peek_char(ctx) == 'v')
- {
- xml_parse_seq(ctx, "version");
- xml_parse_eq(ctx);
- char *version = xml_parse_pubid_literal(ctx);
- DBG("XML: Version=%s", version);
- if (document)
- {
- ctx->version_str = version;
- if (!strcmp(ctx->version_str, "1.0"))
- ;
- else if (!strcmp(ctx->version_str, "1.1"))
- ctx->flags |= XML_FLAG_VERSION_1_1;
- else
- xml_fatal(ctx, "Unsupported XML version");
- }
- else if (strcmp(version, ctx->version_str))
- xml_error(ctx, "Mixed XML versions");
- }
- else if (document)
- xml_fatal(ctx, "Missing XML version");
-
- // FIXME: TextDecl must contain encoding
- if (!xml_parse_white(ctx, 0))
- goto end;
- if (xml_peek_char(ctx) == 'e')
- {
- xml_parse_seq(ctx, "encoding");
- xml_parse_eq(ctx);
- ctx->encoding = xml_parse_encoding_name(ctx);
- DBG("encoding=%s", ctx->encoding);
- // FIXME: check encoding
- if (!xml_parse_white(ctx, 0))
- goto end;
- }
-
- if (document && xml_peek_char(ctx) == 's')
- {
- xml_parse_seq(ctx, "standalone");
- xml_parse_eq(ctx);
- uns c = xml_parse_quote(ctx);
- if (ctx->standalone = (xml_peek_char(ctx) == 'y'))
- xml_parse_seq(ctx, "yes");
- else
- xml_parse_seq(ctx, "no");
- xml_parse_char(ctx, c);
- DBG("standalone=%d", ctx->standalone);
- xml_parse_white(ctx, 0);
- }
-end:
- xml_parse_seq(ctx, "?>");
-}
-
-/*** Document Type Definition (DTD) ***/
-
-/* Notations */
-
-#define HASH_PREFIX(x) xml_dtd_notns_##x
-#define HASH_NODE struct xml_dtd_notn
-#define HASH_KEY_STRING name
-#define HASH_AUTO_POOL 1024
-#define HASH_ZERO_FILL
-#define HASH_TABLE_DYNAMIC
-#define HASH_WANT_FIND
-#define HASH_WANT_LOOKUP
-#define HASH_WANT_CLEANUP
-#include "lib/hashtable.h"
-
-/* General entities */
-
-#define HASH_PREFIX(x) xml_dtd_ents_##x
-#define HASH_NODE struct xml_dtd_ent
-#define HASH_KEY_STRING name
-#define HASH_AUTO_POOL 1024
-#define HASH_ZERO_FILL
-#define HASH_TABLE_DYNAMIC
-#define HASH_WANT_FIND
-#define HASH_WANT_LOOKUP
-#define HASH_WANT_CLEANUP
-#include "lib/hashtable.h"
-
-static void
-xml_dtd_declare_trivial_gent(struct xml_context *ctx, char *name, char *text)
-{
- struct xml_dtd *dtd = ctx->dtd;
- struct xml_dtd_ent *ent = xml_dtd_ents_lookup(dtd->tab_gents, name);
- if (ent->flags & XML_DTD_ENT_DECLARED)
- {
- xml_warn(ctx, "Entity &%s; already declared", name);
- return;
- }
- slist_add_tail(&dtd->gents, &ent->n);
- ent->flags = XML_DTD_ENT_DECLARED | XML_DTD_ENT_TRIVIAL;
- ent->text = text;
-}
-
-static void
-xml_dtd_declare_default_gents(struct xml_context *ctx)
-{
- xml_dtd_declare_trivial_gent(ctx, "lt", "<");
- xml_dtd_declare_trivial_gent(ctx, "gt", ">");
- xml_dtd_declare_trivial_gent(ctx, "amp", "&");
- xml_dtd_declare_trivial_gent(ctx, "apos", "'");
- xml_dtd_declare_trivial_gent(ctx, "quot", "\"");
-}
-
-static struct xml_dtd_ent *
-xml_dtd_find_gent(struct xml_context *ctx, char *name)
-{
- struct xml_dtd *dtd = ctx->dtd;
- if (dtd)
- {
- struct xml_dtd_ent *ent = xml_dtd_ents_find(dtd->tab_gents, name);
- return (ent->flags & XML_DTD_ENT_DECLARED) ? ent : NULL;
- }
- else
- {
-#define ENT(n, t) ent_##n = { .name = #n, .text = t, .len = 1, .flags = XML_DTD_ENT_DECLARED | XML_DTD_ENT_TRIVIAL }
- static struct xml_dtd_ent ENT(lt, "<"), ENT(gt, ">"), ENT(amp, "&"), ENT(apos, "'"), ENT(quot, "\"");
-#undef ENT
- switch (name[0])
- {
- case 'l':
- if (!strcmp(name, "lt"))
- return &ent_lt;
- break;
- case 'g':
- if (!strcmp(name, "gt"))
- return &ent_gt;
- break;
- case 'a':
- if (!strcmp(name, "amp"))
- return &ent_amp;
- if (!strcmp(name, "apos"))
- return &ent_apos;
- break;
- case 'q':
- if (!strcmp(name, "quot"))
- return &ent_quot;
- break;
- }
- return NULL;
- }
-}
-
-/* Parameter entities */
-
-static struct xml_dtd_ent *
-xml_dtd_find_pent(struct xml_context *ctx, char *name)
-{
- struct xml_dtd *dtd = ctx->dtd;
- struct xml_dtd_ent *ent = xml_dtd_ents_find(dtd->tab_pents, name);
- return (ent->flags & XML_DTD_ENT_DECLARED) ? ent : NULL;
-}
-
-/* Elements */
-
-#define HASH_PREFIX(x) xml_dtd_elems_##x
-#define HASH_NODE struct xml_dtd_elem
-#define HASH_KEY_STRING name
-#define HASH_TABLE_DYNAMIC
-#define HASH_AUTO_POOL 1024
-#define HASH_ZERO_FILL
-#define HASH_WANT_LOOKUP
-#define HASH_WANT_CLEANUP
-#include "lib/hashtable.h"
-
-/* Element attributes */
-
-struct xml_dtd_attrs_table;
-
-static inline uns
-xml_dtd_attrs_hash(struct xml_dtd_attrs_table *tab UNUSED, struct xml_dtd_elem *elem, char *name)
-{
- return hash_pointer(elem) ^ hash_string(name);
-}
-
-static inline int
-xml_dtd_attrs_eq(struct xml_dtd_attrs_table *tab UNUSED, struct xml_dtd_elem *elem1, char *name1, struct xml_dtd_elem *elem2, char *name2)
-{
- return (elem1 == elem2) && !strcmp(name1, name2);
-}
-
-static inline void
-xml_dtd_attrs_init_key(struct xml_dtd_attrs_table *tab UNUSED, struct xml_dtd_attr *attr, struct xml_dtd_elem *elem, char *name)
-{
- attr->elem = elem;
- attr->name = name;
-}
-
-#define HASH_PREFIX(x) xml_dtd_attrs_##x
-#define HASH_NODE struct xml_dtd_attr
-#define HASH_AUTO_POOL 1024
-#define HASH_ZERO_FILL
-#define HASH_TABLE_DYNAMIC
-#define HASH_KEY_COMPLEX(x) x elem, x name
-#define HASH_KEY_DECL struct xml_dtd_elem *elem, char *name
-#define HASH_GIVE_HASHFN
-#define HASH_GIVE_EQ
-#define HASH_GIVE_INIT_KEY
-#define HASH_WANT_FIND
-#define HASH_WANT_NEW
-#define HASH_WANT_CLEANUP
-#include "lib/hashtable.h"
-
-/* Enumerated attribute values */
-
-struct xml_dtd_evals_table;
-
-static inline uns
-xml_dtd_evals_hash(struct xml_dtd_evals_table *tab UNUSED, struct xml_dtd_attr *attr, char *val)
-{
- return hash_pointer(attr) ^ hash_string(val);
-}
-
-static inline int
-xml_dtd_evals_eq(struct xml_dtd_evals_table *tab UNUSED, struct xml_dtd_attr *attr1, char *val1, struct xml_dtd_attr *attr2, char *val2)
-{
- return (attr1 == attr2) && !strcmp(val1, val2);
-}
-
-static inline void
-xml_dtd_evals_init_key(struct xml_dtd_evals_table *tab UNUSED, struct xml_dtd_eval *eval, struct xml_dtd_attr *attr, char *val)
-{
- eval->attr = attr;
- eval->val = val;
-}
-
-#define HASH_PREFIX(x) xml_dtd_evals_##x
-#define HASH_NODE struct xml_dtd_eval
-#define HASH_AUTO_POOL 1024
-#define HASH_TABLE_DYNAMIC
-#define HASH_KEY_COMPLEX(x) x attr, x val
-#define HASH_KEY_DECL struct xml_dtd_attr *attr, char *val
-#define HASH_GIVE_HASHFN
-#define HASH_GIVE_EQ
-#define HASH_GIVE_INIT_KEY
-#define HASH_WANT_FIND
-#define HASH_WANT_NEW
-#define HASH_WANT_CLEANUP
-#include "lib/hashtable.h"
-
-/* Enumerated attribute notations */
-
-struct xml_dtd_enotns_table;
-
-static inline uns
-xml_dtd_enotns_hash(struct xml_dtd_enotns_table *tab UNUSED, struct xml_dtd_attr *attr, struct xml_dtd_notn *notn)
-{
- return hash_pointer(attr) ^ hash_pointer(notn);
-}
-
-static inline int
-xml_dtd_enotns_eq(struct xml_dtd_enotns_table *tab UNUSED, struct xml_dtd_attr *attr1, struct xml_dtd_notn *notn1, struct xml_dtd_attr *attr2, struct xml_dtd_notn *notn2)
-{
- return (attr1 == attr2) && (notn1 == notn2);
-}
-
-static inline void
-xml_dtd_enotns_init_key(struct xml_dtd_enotns_table *tab UNUSED, struct xml_dtd_enotn *enotn, struct xml_dtd_attr *attr, struct xml_dtd_notn *notn)
-{
- enotn->attr = attr;
- enotn->notn = notn;
-}
-
-#define HASH_PREFIX(x) xml_dtd_enotns_##x
-#define HASH_NODE struct xml_dtd_enotn
-#define HASH_AUTO_POOL 1024
-#define HASH_TABLE_DYNAMIC
-#define HASH_KEY_COMPLEX(x) x attr, x notn
-#define HASH_KEY_DECL struct xml_dtd_attr *attr, struct xml_dtd_notn *notn
-#define HASH_GIVE_HASHFN
-#define HASH_GIVE_EQ
-#define HASH_GIVE_INIT_KEY
-#define HASH_WANT_FIND
-#define HASH_WANT_NEW
-#define HASH_WANT_CLEANUP
-#include "lib/hashtable.h"
-
-/* DTD initialization/cleanup */
-
-static void
-xml_dtd_init(struct xml_context *ctx)
-{
- ctx->dtd = mp_alloc_zero(ctx->pool, sizeof(*ctx->dtd));
- xml_dtd_ents_init(ctx->dtd->tab_gents = mp_alloc_zero(ctx->pool, sizeof(struct xml_dtd_ents_table)));
- xml_dtd_ents_init(ctx->dtd->tab_pents = mp_alloc_zero(ctx->pool, sizeof(struct xml_dtd_ents_table)));
- xml_dtd_notns_init(ctx->dtd->tab_notns = mp_alloc_zero(ctx->pool, sizeof(struct xml_dtd_notns_table)));
- xml_dtd_elems_init(ctx->dtd->tab_elems = mp_alloc_zero(ctx->pool, sizeof(struct xml_dtd_elems_table)));
- xml_dtd_attrs_init(ctx->dtd->tab_attrs = mp_alloc_zero(ctx->pool, sizeof(struct xml_dtd_attrs_table)));
- xml_dtd_evals_init(ctx->dtd->tab_evals = mp_alloc_zero(ctx->pool, sizeof(struct xml_dtd_evals_table)));
- xml_dtd_enotns_init(ctx->dtd->tab_enotns = mp_alloc_zero(ctx->pool, sizeof(struct xml_dtd_enotns_table)));
- xml_dtd_declare_default_gents(ctx);
-}
-
-static void
-xml_dtd_cleanup(struct xml_context *ctx)
-{
- if (!ctx->dtd)
- return;
- xml_dtd_ents_cleanup(ctx->dtd->tab_gents);
- xml_dtd_ents_cleanup(ctx->dtd->tab_pents);
- xml_dtd_notns_cleanup(ctx->dtd->tab_notns);
- xml_dtd_elems_cleanup(ctx->dtd->tab_elems);
- xml_dtd_attrs_cleanup(ctx->dtd->tab_attrs);
- xml_dtd_evals_cleanup(ctx->dtd->tab_evals);
- xml_dtd_enotns_cleanup(ctx->dtd->tab_enotns);
-}
-
-static void
-xml_dtd_finish(struct xml_context *ctx)
-{
- if (!ctx->dtd)
- return;
- // FIXME
-}
-
-/*** Parsing functions ***/
-
-/* Comments */
-
-static void
-xml_push_comment(struct xml_context *ctx)
-{
- /* Parse a comment to ctx->value:
- * Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
- * Already parsed: '<!-' */
- struct fastbuf *out = ctx->value;
- uns c;
- xml_parse_char(ctx, '-');
- while (1)
- {
- if ((c = xml_get_char(ctx)) == '-')
- if ((c = xml_get_char(ctx)) == '-')
- break;
- else
- bputc(out, '-');
- bput_utf8_32(out, c);
- }
- xml_parse_char(ctx, '>');
- fbgrow_rewind(out);
- if (ctx->h_comment)
- ctx->h_comment(ctx);
-}
-
-static void
-xml_pop_comment(struct xml_context *ctx)
-{
- fbgrow_rewind(ctx->value);
-}
-
-static void
-xml_skip_comment(struct xml_context *ctx)
-{
- xml_parse_char(ctx, '-');
- while (xml_get_char(ctx) != '-' || xml_get_char(ctx) != '-');
- xml_parse_char(ctx, '>');
-}
-
-/* Processing instructions */
-
-static void
-xml_push_pi(struct xml_context *ctx)
-{
- /* Parses a PI to ctx->value and ctx->name:
- * PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char*)))? '?>'
- * PITarget ::= Name - (('X' | 'x') ('M' | 'm') ('L' | 'l'))
- * Already parsed: '<?' */
-
- ctx->name = xml_parse_name(ctx);
- if (unlikely(!strcasecmp(ctx->name, "xml")))
- xml_fatal(ctx, "Reserved PI target");
- struct fastbuf *out = ctx->value;
- if (xml_parse_white(ctx, 0))
- xml_parse_seq(ctx, "?>");
- else
- {
- while (1)
- {
- uns c;
- if ((c = xml_get_char(ctx)) == '?')
- if (xml_get_char(ctx) == '>')
- break;
- else
- {
- xml_unget_char(ctx);
- bputc(out, '?');
- }
- else
- bput_utf8_32(out, c);
- }
- fbgrow_rewind(out);
- }
- if (ctx->h_pi)
- ctx->h_pi(ctx);
-}
-
-static void
-xml_pop_pi(struct xml_context *ctx)
-{
- fbgrow_reset(ctx->value);
-}
-
-static void
-xml_skip_pi(struct xml_context *ctx)
-{
- if (ctx->flags & XML_FLAG_VALIDATING)
- {
- mp_push(ctx->pool);
- if (unlikely(!strcasecmp(xml_parse_name(ctx), "xml")))
- xml_fatal(ctx, "Reserved PI target");
- mp_pop(ctx->pool);
- if (!xml_parse_white(ctx, 0))
- {
- xml_parse_seq(ctx, "?>");
- return;
- }
- }
- while (1)
- if (xml_get_char(ctx) == '?')
- if (xml_get_char(ctx) == '>')
- break;
- else
- xml_unget_char(ctx);
-}
-
-/* Character references */
-
-static uns
-xml_parse_char_ref(struct xml_context *ctx)
-{
- /* CharRef ::= '&#' [0-9]+ ';' | '&#x' [0-9a-fA-F]+ ';'
- * Already parsed: '&#' */
- uns v = 0;
- if (xml_get_char(ctx) == 'x')
- {
- if (!(xml_get_cat(ctx) & XML_CHAR_XDIGIT))
- {
- xml_error(ctx, "Expected a hexadecimal value of character reference");
- goto recover;
- }
- do
- {
- v = (v << 4) + Cxvalue(xml_last_char(ctx));
- }
- while (v < 0x110000 && (xml_get_cat(ctx) & XML_CHAR_XDIGIT));
- }
- else
- {
- if (!(xml_last_cat(ctx) & XML_CHAR_DIGIT))
- {
- xml_error(ctx, "Expected a numeric value of character reference");
- goto recover;
- }
- do
- {
- v = v * 10 + xml_last_char(ctx) - '0';
- }
- while (v < 0x110000 && (xml_get_cat(ctx) & XML_CHAR_DIGIT));
- }
- uns cat = xml_char_cat(v);
- if (!(cat & XML_CHAR_UNRESTRICTED_1_1) && ((ctx->flags & XML_FLAG_VERSION_1_1) || !(cat & XML_CHAR_VALID_1_0)))
- {
- xml_error(ctx, "Character reference out of range");
- goto recover;
- }
- if (xml_last_char(ctx) == ';')
- return v;
- xml_error(ctx, "Expected ';'");
-recover:
- while (xml_last_char(ctx) != ';')
- xml_get_char(ctx);
- return UNI_REPLACEMENT;
-}
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////
-
-static void
-xml_parse_parameter_ref(struct xml_context *ctx)
-{
- char *name = xml_parse_name(ctx);
- xml_parse_char(ctx, ';');
- struct xml_dtd_ent *ent = xml_dtd_ents_find(ctx->dtd->tab_pents, name);
- if (!ent || !(ent->flags & XML_DTD_ENT_DECLARED))
- {
- xml_error(ctx, "Reference to unknown parameter entity %%%s", name);
- return;
- }
- if (ent->flags & XML_DTD_ENT_VISITED)
- {
- xml_error(ctx, "Cycled references to parameter entity %%%s", name);
- return;
- }
- if (ent->flags & XML_DTD_ENT_EXTERNAL)
- {
- // FIXME:
- xml_error(ctx, "Support for external parsed entities not implemented");
- return;
- }
- ent->flags |= XML_DTD_ENT_VISITED; // FIXME: clear
- struct fastbuf *fb = mp_alloc(ctx->pool, sizeof(*fb));
- fbbuf_init_read(fb, ent->text, ent->len, 0);
- xml_push_source(ctx, fb, 0);
-}
-
-static inline void
-xml_check_parameter_ref(struct xml_context *ctx)
-{
- if (xml_get_char(ctx) != '%')
- {
- xml_unget_char(ctx);
- return;
- }
- xml_parse_parameter_ref(ctx);
-}
-
-static void
-xml_parse_external_id(struct xml_context *ctx, struct xml_ext_id *eid, uns allow_public)
-{
- bzero(eid, sizeof(*eid));
- uns c = xml_get_char(ctx);
- if (c == 'S')
- {
- xml_parse_seq(ctx, "YSTEM");
- xml_parse_white(ctx, 1);
- eid->system_id = xml_parse_system_literal(ctx);
- }
- else if (c == 'P')
- {
- xml_parse_seq(ctx, "UBLIC");
- xml_parse_white(ctx, 1);
- eid->public_id = xml_parse_pubid_literal(ctx);
- if (xml_parse_white(ctx, 1))
- if ((c = xml_get_char(ctx)) == '\'' || c == '"' || !allow_public)
- {
- xml_unget_char(ctx);
- eid->system_id = xml_parse_system_literal(ctx);
- }
- else
- xml_unget_char(ctx);
- }
- else
- xml_fatal(ctx, "Expected an external ID");
-}
-
-static void
-xml_parse_notation_decl(struct xml_context *ctx)
-{
- /* NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>'*/
- xml_parse_white(ctx, 1);
- struct xml_dtd_notn *notn = xml_dtd_notns_lookup(ctx->dtd->tab_notns, xml_parse_name(ctx));
- xml_parse_white(ctx, 1);
- struct xml_ext_id eid;
- xml_parse_external_id(ctx, &eid, 1);
- xml_parse_white(ctx, 0);
- xml_parse_char(ctx, '>');
- if (notn->flags & XML_DTD_NOTN_DECLARED)
- xml_warn(ctx, "Notation %s already declared", notn->name);
- else
- {
- notn->flags = XML_DTD_NOTN_DECLARED;
- notn->eid = eid;
- }
-}
-
-static void
-xml_parse_internal_subset(struct xml_context *ctx)
-{
- while (1)
- {
- xml_parse_white(ctx, 0);
- uns c = xml_get_char(ctx);
- if (c == '<')
- if ((c = xml_get_char(ctx)) == '!')
- switch (c = xml_get_char(ctx))
- {
- case '-':
- xml_push_comment(ctx);
- xml_pop_comment(ctx);
- break;
- case 'N':
- xml_parse_seq(ctx, "OTATION");
- xml_parse_notation_decl(ctx);
- break;
- case 'E':
- if ((c = xml_get_char(ctx)) == 'N')
- {
- xml_parse_seq(ctx, "TITY");
- //xml_parse_entity_decl(ctx);
- }
- else if (c == 'L')
- {
- xml_parse_seq(ctx, "EMENT");
- // FIXME: Element
- }
- else
- goto invalid_markup;
- break;
- case 'A':
- xml_parse_seq(ctx, "TTLIST");
- // FIXME: AttList
- break;
- default:
- goto invalid_markup;
- }
- else if (c == '?')
- {
- xml_push_pi(ctx);
- xml_pop_pi(ctx);
- }
- else
- goto invalid_markup;
- else if (c == '%')
- xml_parse_parameter_ref(ctx);
- else if (c == ']')
- break;
- else
- goto invalid_markup;
- }
- return;
-invalid_markup:
- xml_fatal(ctx, "Invalid markup in the internal subset");
-}
-
-/*----------------------------------------------*/
-
-
-/* FIXME */
-
-struct xml_attribute_table;
-
-#define HASH_PREFIX(x) xml_attribute_##x
-#define HASH_NODE struct xml_attribute
-#define HASH_KEY_COMPLEX(x) x element, x name
-#define HASH_KEY_DECL struct xml_element *element, char *name
-#define HASH_TABLE_DYNAMIC
-#define HASH_AUTO_POOL 1024
-
-#define HASH_GIVE_HASHFN
-
-static inline uns
-xml_attribute_hash(struct xml_attribute_table *t UNUSED, struct xml_element *e, char *n)
-{
- return hash_pointer(e) ^ hash_string(n);
-}
-
-#define HASH_GIVE_EQ
-
-static inline int
-xml_attribute_eq(struct xml_attribute_table *t UNUSED, struct xml_element *e1, char *n1, struct xml_element *e2, char *n2)
-{
- return (e1 == e2) && !strcmp(n1, n2);
-}
-
-#define HASH_GIVE_INIT_KEY
-
-static inline void
-xml_attribute_init_key(struct xml_attribute_table *t UNUSED, struct xml_attribute *a, struct xml_element *e, char *name)
-{
- a->element = e;
- a->name = name;
- a->value = NULL;
- a->next = e->attrs;
- e->attrs = a;
-}
-
-#define HASH_WANT_CLEANUP
-#define HASH_WANT_REMOVE
-#define HASH_WANT_LOOKUP
-#define HASH_WANT_FIND
-#include "lib/hashtable.h"
-
-
-/*
-#define HASH_PREFIX(x) xml_parsed_entities_##x
-#define HASH_NODE struct xml_parsed_entity
-#define HASH_KEY_STRING name
-#define HASH_TABLE_DYNAMIC
-#define HASH_AUTO_POOL 1024
-#define HASH_WANT_CLEANUP
-#include "lib/hashtable.h"
-*/
-
-void
-xml_init(struct xml_context *ctx)
-{
- bzero(ctx, sizeof(*ctx));
- ctx->pool = mp_new(65536);
- ctx->chars = fbgrow_create(4096);
- ctx->value = fbgrow_create(4096);
- xml_dtd_init(ctx);
-}
-
-void
-xml_cleanup(struct xml_context *ctx)
-{
- xml_dtd_cleanup(ctx);
- bclose(ctx->value);
- bclose(ctx->chars);
- mp_delete(ctx->pool);
-}
-
-static void
-xml_parse_cdata(struct xml_context *ctx)
-{
- struct fastbuf *out = ctx->chars;
- xml_parse_seq(ctx, "CDATA[");
- while (1)
- {
- uns c;
- if ((c = xml_get_char(ctx)) == ']')
- {
- if ((c = xml_get_char(ctx)) == ']')
- if ((c = xml_get_char(ctx)) == '>')
- break;
- else
- bputc(out, ']');
- bputc(out, ']');
- }
- bput_utf8_32(out, c);
- }
-}
-
-static void
-xml_skip_cdata(struct xml_context *ctx)
-{
- xml_parse_cdata(ctx);
-}
-
-static void
-xml_parse_ref_entity(struct xml_context *ctx UNUSED, struct fastbuf *out UNUSED, struct xml_dtd_ent *entity UNUSED)
-{
-#if 0
- for (struct xml_dtd_ent_node *node = entity->list; node; node = node->next)
- if (node->len)
- bwrite(out, node->ptr, node->len);
- else
- xml_parse_ref_entity(ctx, out, node->ptr); // FIXME: do not call the recursion on stack -- could cause segfault
-#endif
-}
-
-static void
-xml_parse_ref(struct xml_context *ctx, struct fastbuf *out)
-{
- if (xml_get_char(ctx) == '#')
- {
- uns c = xml_parse_char_ref(ctx);
- bput_utf8_32(out, c);
- }
- else
- {
-#if 0
- xml_unget_char(ctx);
- mp_push(ctx->pool);
- char *name = xml_parse_name(ctx);
- struct xml_parsed_entity *entity = xml_find_parsed_entity(ctx, name);
- mp_pop(ctx->pool);
- xml_parse_char(ctx, ';');
- xml_parse_ref_entity(ctx, out, entity);
-#endif
- }
-}
-
-static void
-xml_parse_chars(struct xml_context *ctx)
-{
- DBG("parse_chars");
- struct fastbuf *out = ctx->chars;
- uns c;
- while ((c = xml_get_char(ctx)) != '<')
- if (c == '&')
- xml_parse_ref(ctx, out);
- else
- bput_utf8_32(out, c);
- xml_unget_char(ctx);
-}
-
-static void
-xml_parse_attr(struct xml_context *ctx)
-{
- DBG("parse_attr");
- struct xml_element *e = ctx->element;
- char *name = xml_parse_name(ctx);
- struct xml_attribute *a = xml_attribute_lookup(ctx->attribute_table, e, name);
- if (a->value)
- xml_fatal(ctx, "Attribute is not unique");
- xml_parse_eq(ctx);
- // FIXME
- char *value = xml_parse_system_literal(ctx);
- a->value = value;
-}
-
-static uns
-xml_parse_stag(struct xml_context *ctx)
-{
- DBG("parse_stag");
- mp_push(ctx->pool);
- struct xml_element *e = mp_alloc_zero(ctx->pool, sizeof(*e));
- e->parent = ctx->element;
- ctx->element = e;
- e->name = xml_parse_name(ctx);
- while (1)
- {
- uns white = xml_parse_white(ctx, 0);
- uns c = xml_get_char(ctx);
- if (c == '/')
- {
- xml_parse_char(ctx, '>');
- return 1;
- }
- else if (c == '>')
- return 0;
- else if (!white)
- xml_fatal(ctx, "Expected a white space");
- xml_unget_char(ctx);
- xml_parse_attr(ctx);
- }
-}
-
-static void
-xml_parse_etag(struct xml_context *ctx)
-{
- DBG("parse_etag");
- struct xml_element *e = ctx->element;
- ASSERT(e);
- char *name = xml_parse_name(ctx);
- if (strcmp(name, e->name))
- xml_fatal(ctx, "Invalid ETag, expected '%s'", e->name);
- xml_parse_white(ctx, 0);
- xml_parse_char(ctx, '>');
- // FIXME: remove on pooled hashtable?
- for (struct xml_attribute *a = e->attrs; a; a = a->next)
- xml_attribute_remove(ctx->attribute_table, a);
- ctx->element = e->parent;
- mp_pop(ctx->pool);
-}
-
-static void
-xml_parse_element_decl(struct xml_context *ctx)
-{
- // FIXME
- mp_push(ctx->pool);
- xml_parse_seq(ctx, "<!ELEMENT");
- xml_parse_white(ctx, 1);
- xml_parse_name(ctx);
- xml_parse_white(ctx, 1);
-
- uns c = xml_get_char(ctx);
- if (c == 'E')
- {
- xml_parse_seq(ctx, "MPTY");
- // FIXME
- }
- else if (c == 'A')
- {
- xml_parse_seq(ctx, "NY");
- // FIXME
- }
- else if (c == '(')
- {
- xml_parse_white(ctx, 0);
- if (xml_get_char(ctx) == '#')
- {
- xml_parse_seq(ctx, "PCDATA");
- while (1)
- {
- xml_parse_white(ctx, 0);
- if ((c = xml_get_char(ctx)) == ')')
- break;
- else if (c != '|')
- xml_fatal_expected(ctx, ')');
- xml_parse_white(ctx, 0);
- xml_parse_name(ctx);
- // FIXME
- }
- }
- else
- {
- xml_unget_char(ctx);
- uns depth = 1;
- while (1)
- {
- xml_parse_white(ctx, 0);
- if ((c = xml_get_char(ctx)) == '(')
- {
- depth++;
- }
- else if (c == ')')
- {
- if ((c = xml_get_char(ctx)) == '?' || c == '*' || c == '+')
- {
- }
- else
- xml_unget_char(ctx);
- if (!--depth)
- break;
- }
- else if (c == '|')
- {
- }
- else if (c == ',')
- {
- }
- else
- {
- xml_unget_char(ctx);
- xml_parse_name(ctx);
- }
- }
- }
- }
- else
- xml_fatal(ctx, "Expected element content specification");
-
- xml_parse_white(ctx, 0);
- xml_parse_char(ctx, '>');
- mp_pop(ctx->pool);
-}
-
-#if 0
-static void
-xml_parse_attr_list_decl(struct xml_context *ctx)
-{
- /* AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>'
- * AttDef ::= S Name S AttType S DefaultDecl */
- xml_parse_seq(ctx, "ATTLIST");
- xml_parse_white(ctx, 1);
- struct xml_dtd_elem *e = xml_dtd_elems_lookup(ctx->dtd->tab_elems, xml_parse_name(ctx));
- e->attlist_declared = 1;
-
- while (xml_parse_white(ctx, 0) && xml_get_char(ctx) != '>')
- {
- xml_unget_char(ctx);
- char *name = xml_parse_name(ctx);
- struct xml_dtd_attr *a = xml_dtd_attrs_find(ctx->dtd->tab_attrs, e, name);
- uns ignored = 0;
- if (a)
- {
- xml_warn(ctx, "Duplicate attribute definition");
- ignored++;
- }
- else
- a = xml_dtd_attrs_new(ctx->dtd->tab_attrs, e, name);
- xml_parse_white(ctx, 1);
- if (xml_get_char(ctx) == '(')
- {
- if (!ignored)
- a->type = XML_ATTR_ENUM;
- do
- {
- xml_parse_white(ctx, 0);
- char *value = xml_parse_nmtoken(ctx);
- if (!ignored)
- if (xml_dtd_evals_find(ctx->dtd->tab_evals, a, value))
- xml_error(ctx, "Duplicate enumeration value");
- else
- xml_dtd_evals_new(ctx->dtd->tab_evals, a, value);
- xml_parse_white(ctx, 0);
- }
- while (xml_get_char(ctx) == '|');
- xml_unget_char(ctx);
- xml_parse_char(ctx, ')');
- }
- else
- {
- xml_unget_char(ctx);
- char *type = xml_parse_name(ctx);
- enum xml_dtd_attribute_type t;
- if (!strcmp(type, "CDATA"))
- t = XML_ATTR_CDATA;
- else if (!strcmp(type, "ID"))
- t = XML_ATTR_ID;
- else if (!strcmp(type, "IDREF"))
- t = XML_ATTR_IDREF;
- else if (!strcmp(type, "IDREFS"))
- t = XML_ATTR_IDREFS;
- else if (!strcmp(type, "ENTITY"))
- t = XML_ATTR_ENTITY;
- else if (!strcmp(type, "ENTITIES"))
- t = XML_ATTR_ENTITIES;
- else if (!strcmp(type, "NMTOKEN"))
- t = XML_ATTR_NMTOKEN;
- else if (!strcmp(type, "NMTOKENS"))
- t = XML_ATTR_NMTOKENS;
- else if (!strcmp(type, "NOTATION"))
- {
- t = XML_ATTR_NOTATION;
- xml_parse_white(ctx, 1);
- xml_parse_char(ctx, '(');
- do
- {
- xml_parse_white(ctx, 0);
- struct xml_dtd_notn *n = xml_dtd_notns_lookup(ctx->dtd->tab_notns, xml_parse_name(ctx));
- if (!ignored)
- if (xml_dtd_enotns_find(ctx->dtd->tab_enotns, a, n))
- xml_error(ctx, "Duplicate enumerated notation");
- else
- xml_dtd_enotns_new(ctx->dtd->tab_enotns, a, n);
- xml_parse_white(ctx, 0);
- }
- while (xml_get_char(ctx) == '|');
- xml_unget_char(ctx);
- xml_parse_char(ctx, ')');
- }
- else
- xml_fatal(ctx, "Unknown attribute type");
- if (!ignored)
- a->type = t;
- }
- xml_parse_white(ctx, 1);
- enum xml_dtd_attribute_default def = XML_ATTR_NONE;
- if (xml_get_char(ctx) == '#')
- switch (xml_get_char(ctx))
- {
- case 'R':
- xml_parse_seq(ctx, "EQUIRED");
- def = XML_ATTR_REQUIRED;
- break;
- case 'I':
- xml_parse_seq(ctx, "MPLIED");
- def = XML_ATTR_IMPLIED;
- break;
- case 'F':
- xml_parse_seq(ctx, "IXED");
- def = XML_ATTR_FIXED;
- break;
- default:
- xml_fatal(ctx, "Expected a modifier for default attribute value");
- }
- else
- xml_unget_char(ctx);
- if (def != XML_ATTR_REQUIRED && def != XML_ATTR_IMPLIED)
- {
- xml_parse_system_literal(ctx);
- // FIXME
- }
- }
-}
-#endif
-
-static void
-xml_parse_entity_decl(struct xml_context *ctx)
-{
- struct xml_dtd *dtd = ctx->dtd;
- xml_parse_white(ctx, 1);
-
- uns flags = (xml_get_char(ctx) == '%') ? XML_DTD_ENT_PARAMETER : 0;
- if (flags)
- xml_parse_white(ctx, 1);
- else
- xml_unget_char(ctx);
-
- struct xml_dtd_ent *ent = xml_dtd_ents_lookup(flags ? dtd->tab_pents : dtd->tab_gents, xml_parse_name(ctx));
- slist *list = flags ? &dtd->pents : &dtd->gents;
- xml_parse_white(ctx, 1);
- if (ent->flags & XML_DTD_ENT_DECLARED)
- {
- xml_fatal(ctx, "Entity &%s; already declared, skipping not implemented", ent->name);
- // FIXME: should be only warning
- }
-
- uns sep = xml_get_char(ctx), c;
- if (sep == '\'' || sep == '"')
- {
- /* Internal entity:
- * EntityValue ::= '"' ([^%&"] | PEReference | Reference)* '"' | "'" ([^%&'] | PEReference | Reference)* "'" */
- struct fastbuf *out = ctx->value;
- uns sep = c;
- while (1)
- {
- if ((c = xml_get_char(ctx)) == sep)
- break;
- else if (c == '%')
- {
- // FIXME
- ASSERT(0);
- //xml_parse_parameter_ref(ctx);
- }
- else if (c != '&')
- bput_utf8_32(out, c);
- else if ((c = xml_get_char(ctx)) == '#')
- c = xml_parse_char_ref(ctx);
- else
- {
- /* Bypass references to general entities */
- mp_push(ctx->pool);
- bputc(out, '&');
- xml_unget_char(ctx);
- bputs(out, xml_parse_name(ctx));
- xml_parse_char(ctx, ';');
- bputc(out, ';');
- mp_pop(ctx->pool);
- }
- }
- bputc(out, 0);
- fbgrow_rewind(out);
- slist_add_tail(list, &ent->n);
- ent->flags = flags | XML_DTD_ENT_DECLARED;
- ent->len = out->bstop - out->bptr - 1;
- ent->text = mp_memdup(ctx->pool, out->bptr, ent->len + 1);
- fbgrow_reset(out);
- }
- else
- {
- /* External entity */
- struct xml_ext_id eid;
- struct xml_dtd_notn *notn = NULL;
- xml_parse_external_id(ctx, &eid, 0);
- if (!xml_parse_white(ctx, 0) || !flags)
- xml_parse_char(ctx, '>');
- else if (xml_get_char(ctx) != '>')
- {
- /* General external unparsed entity */
- flags |= XML_DTD_ENT_UNPARSED;
- xml_parse_seq(ctx, "NDATA");
- xml_parse_white(ctx, 1);
- notn = xml_dtd_notns_lookup(dtd->tab_notns, xml_parse_name(ctx));
- }
- slist_add_tail(list, &ent->n);
- ent->flags = flags | XML_DTD_ENT_DECLARED | XML_DTD_ENT_EXTERNAL;
- ent->eid = eid;
- ent->notn = notn;
- }
-}
-
-static void
-xml_parse_doctype_decl(struct xml_context *ctx)
-{
- if (ctx->document_type)
- xml_fatal(ctx, "Multiple document types not allowed");
- xml_parse_seq(ctx, "DOCTYPE");
- xml_parse_white(ctx, 1);
- ctx->document_type = xml_parse_name(ctx);
- DBG("XML: DocumentType=%s", ctx->document_type);
- uns white = xml_parse_white(ctx, 0);
- uns c = xml_peek_char(ctx);
- if (c != '>' && c != '[' && white)
- {
- xml_parse_external_id(ctx, &ctx->eid, 0);
- xml_parse_white(ctx, 0);
- }
- if (ctx->h_doctype_decl)
- ctx->h_doctype_decl(ctx);
-}
-
-int
-xml_next(struct xml_context *ctx)
-{
- /* A nasty state machine */
-
- DBG("XML: xml_next (state=%u)", ctx->state);
- jmp_buf throw_buf;
- ctx->throw_buf = &throw_buf;
- if (setjmp(throw_buf))
- {
-error:
- if (ctx->err_code == XML_ERR_EOF && ctx->h_fatal)
- ctx->h_fatal(ctx);
- ctx->state = XML_STATE_FATAL;
- DBG("XML: raised fatal error");
- return -1;
- }
- uns c;
- switch (ctx->state)
- {
- case XML_STATE_FATAL:
- return -1;
-
- case XML_STATE_START:
- DBG("XML: Entering Prolog");
- if (ctx->h_document_start)
- ctx->h_document_start(ctx);
- /* XMLDecl */
- xml_refill(ctx);
- if (ctx->h_xml_decl)
- ctx->h_xml_decl(ctx);
- if (ctx->want & XML_WANT_DECL)
- return ctx->state = XML_STATE_DECL;
- case XML_STATE_DECL:
-
- /* Misc* (doctypedecl Misc*)? */
- while (1)
- {
- xml_parse_white(ctx, 0);
- xml_parse_char(ctx, '<');
- if ((c = xml_get_char(ctx)) == '?')
- /* Processing intruction */
- if (!(ctx->want & XML_WANT_PI))
- xml_skip_pi(ctx);
- else
- {
- xml_push_pi(ctx);
- ctx->state = XML_STATE_PROLOG_PI;
- return XML_STATE_PI;
- case XML_STATE_PROLOG_PI:
- xml_pop_pi(ctx);
- }
- else if (c != '!')
- {
- /* Found the root tag */
- xml_unget_char(ctx);
- goto first_tag;
- }
- else if (xml_get_char(ctx) == '-')
- if (!(ctx->want & XML_WANT_COMMENT))
- xml_skip_comment(ctx);
- else
- {
- xml_push_comment(ctx);
- ctx->state = XML_STATE_PROLOG_COMMENT;
- return XML_STATE_COMMENT;
- case XML_STATE_PROLOG_COMMENT:
- xml_pop_comment(ctx);
- }
- else
- {
- /* DocTypeDecl */
- xml_unget_char(ctx);
- xml_parse_doctype_decl(ctx);
- if (ctx->want & XML_WANT_DOCUMENT_TYPE)
- return ctx->state = XML_STATE_DOCUMENT_TYPE;
- case XML_STATE_DOCUMENT_TYPE:
- if (xml_peek_char(ctx) == '[')
- {
- xml_skip_char(ctx);
- // FIXME
- while (xml_get_char(ctx) != ']');
- xml_parse_white(ctx, 0);
- }
- xml_parse_char(ctx, '>');
- }
- }
-
- case XML_STATE_PI:
- mp_pop(ctx->pool);
- case XML_STATE_COMMENT:
- fbgrow_reset(ctx->value);
-
- case XML_STATE_CHARS:
-
- while (1)
- {
- if (xml_get_char(ctx) != '<')
- {
- /* CharData */
- xml_unget_char(ctx);
- xml_parse_chars(ctx);
- continue;
- }
-first_tag: ;
-
- if ((c = xml_get_char(ctx)) == '?')
- {
- /* PI */
- if (!(ctx->want & XML_WANT_PI))
- xml_skip_pi(ctx);
- else
- {
- if (btell(ctx->chars))
- {
- fbgrow_rewind(ctx->chars);
- ctx->state = XML_STATE_CHARS_BEFORE_PI;
- return XML_STATE_PI;
- case XML_STATE_CHARS_BEFORE_PI:
- fbgrow_reset(ctx->chars);
- }
- xml_push_pi(ctx);
- return ctx->state = XML_STATE_PI;
- }
- }
-
- else if (c == '!')
- if ((c = xml_get_char(ctx)) == '-')
- {
- /* Comment */
- if (!(ctx->want & XML_WANT_COMMENT))
- xml_skip_comment(ctx);
- else
- {
- if (btell(ctx->chars))
- {
- fbgrow_rewind(ctx->chars);
- ctx->state = XML_STATE_CHARS_BEFORE_COMMENT;
- return XML_STATE_CHARS;
- case XML_STATE_CHARS_BEFORE_COMMENT:
- fbgrow_reset(ctx->chars);
- }
- xml_push_comment(ctx);
- return ctx->state = XML_STATE_COMMENT;
- }
- }
- else if (c == '[')
- {
- /* CDATA */
- if (!(ctx->want & XML_WANT_CDATA))
- xml_skip_cdata(ctx);
- else
- {
- if (btell(ctx->chars))
- {
- fbgrow_rewind(ctx->chars);
- ctx->state = XML_STATE_CHARS_BEFORE_CDATA;
- return XML_STATE_CHARS;
- case XML_STATE_CHARS_BEFORE_CDATA:
- fbgrow_reset(ctx->chars);
- }
- xml_parse_cdata(ctx);
- if (btell(ctx->chars))
- {
- fbgrow_rewind(ctx->chars);
- return ctx->state = XML_STATE_CDATA;
- }
- case XML_STATE_CDATA:
- fbgrow_reset(ctx->chars);
- }
- }
- else
- xml_fatal(ctx, "Unexpected character after '<!'");
-
- else if (c != '/')
- {
- /* STag | EmptyElemTag */
- xml_unget_char(ctx);
- if (btell(ctx->chars))
- {
- fbgrow_rewind(ctx->chars);
- ctx->state = XML_STATE_CHARS_BEFORE_STAG;
- return XML_STATE_CHARS;
- case XML_STATE_CHARS_BEFORE_STAG:
- fbgrow_reset(ctx->chars);
- }
-
- if (xml_parse_stag(ctx))
- {
- }
- if (ctx->want & XML_WANT_STAG)
- return ctx->state = XML_STATE_STAG;
- case XML_STATE_STAG:
- // FIXME: EmptyElemTag
- ;
-
- }
-
- else
- {
- /* ETag */
- if (btell(ctx->chars))
- {
- fbgrow_rewind(ctx->chars);
- ctx->state = XML_STATE_CHARS_BEFORE_ETAG;
- return XML_STATE_CHARS;
- case XML_STATE_CHARS_BEFORE_ETAG:
- fbgrow_reset(ctx->chars);
- }
-
- if (ctx->want & XML_WANT_ETAG)
- return ctx->state = XML_STATE_ETAG;
- case XML_STATE_ETAG:
-
- xml_parse_etag(ctx);
-
- if (!ctx->element)
- goto epilog;
- }
- }
-
-epilog:
- /* Misc* */
- DBG("XML: Entering epilog");
- while (1)
- {
- /* Epilog whitespace is the only place, where a valid document can reach EOF */
- if (setjmp(throw_buf))
- if (ctx->err_code == XML_ERR_EOF)
- {
- DBG("XML: Reached EOF");
- ctx->state = XML_STATE_EOF;
- if (ctx->h_document_end)
- ctx->h_document_end(ctx);
- case XML_STATE_EOF:
- return XML_STATE_EOF;
- }
- else
- goto error;
- xml_parse_white(ctx, 0);
- if (setjmp(throw_buf))
- goto error;
-
- /* Misc */
- xml_parse_char(ctx, '<');
- if ((c = xml_get_char(ctx)) == '?')
- /* Processing instruction */
- if (!(ctx->want & XML_WANT_PI))
- xml_skip_pi(ctx);
- else
- {
- xml_push_pi(ctx);
- return ctx->state = XML_STATE_EPILOG_PI, XML_STATE_PI;
- case XML_STATE_EPILOG_PI:
- xml_pop_pi(ctx);
- }
- else if (c == '!')
- /* Comment */
- if (!(ctx->want & XML_WANT_COMMENT))
- xml_skip_comment(ctx);
- else
- {
- xml_push_comment(ctx);
- return ctx->state = XML_STATE_EPILOG_COMMENT, XML_STATE_COMMENT;
- case XML_STATE_EPILOG_COMMENT:
- xml_pop_comment(ctx);
- }
- else
- xml_fatal(ctx, "Syntax error in the epilog");
- }
-
- }
- return -1;
-}
-
-#ifdef TEST
-
-static void
-error(struct xml_context *ctx)
-{
- msg((ctx->err_code < XML_ERR_ERROR) ? L_WARN_R : L_ERROR_R, "XML: %s", ctx->err_msg);
-}
-
-static void
-test(struct fastbuf *in, struct fastbuf *out)
-{
- struct xml_context ctx;
- xml_init(&ctx);
- ctx.h_warn = ctx.h_error = ctx.h_fatal = error;
- ctx.want = XML_WANT_ALL;
- xml_set_source(&ctx, in);
- int state;
- while ((state = xml_next(&ctx)) >= 0)
- switch (state)
- {
- case XML_STATE_CHARS:
- bprintf(out, "CHARS [%.*s]\n", (int)(ctx.chars->bstop - ctx.chars->buffer), ctx.chars->buffer);
- break;
- case XML_STATE_STAG:
- bprintf(out, "STAG <%s>\n", ctx.element->name);
- for (struct xml_attribute *a = ctx.element->attrs; a; a = a->next)
- bprintf(out, " ATTR %s=[%s]\n", a->name, a->value);
- break;
- case XML_STATE_ETAG:
- bprintf(out, "ETAG </%s>\n", ctx.element->name);
- break;
- case XML_STATE_COMMENT:
- bprintf(out, "COMMENT [%.*s]\n", (int)(ctx.value->bstop - ctx.value->buffer), ctx.value->buffer);
- break;
- case XML_STATE_PI:
- bprintf(out, "PI [%s] [%.*s]\n", ctx.name, (int)(ctx.value->bstop - ctx.value->buffer), ctx.value->buffer);
- break;
- case XML_STATE_CDATA:
- bprintf(out, "CDATA [%.*s]\n", (int)(ctx.chars->bstop - ctx.chars->buffer), ctx.chars->buffer);
- break;
- case XML_STATE_EOF:
- bprintf(out, "EOF\n");
- goto end;
- default:
- bprintf(out, "STATE %u\n", state);
- break;
- }
-end:
- xml_cleanup(&ctx);
-}
-
-int
-main(void)
-{
- struct fastbuf *in = bfdopen_shared(0, 1024);
- struct fastbuf *out = bfdopen_shared(1, 1024);
- test(in, out);
- bclose(out);
- return 0;
-}
-
-#endif
+++ /dev/null
-/*
- * UCW Library -- A simple XML parser
- *
- * (c) 2007 Pavel Charvat <pchar@ucw.cz>
- *
- * This software may be freely distributed and used according to the terms
- * of the GNU Lesser General Public License.
- */
-
-#ifndef _UCW_XML_H
-#define _UCW_XML_H
-
-#include "lib/clists.h"
-#include "lib/slists.h"
-
-enum xml_error {
- XML_ERR_OK = 0,
- XML_ERR_WARN = 1000, /* Warning */
- XML_ERR_ERROR = 2000, /* Recoverable error */
- XML_ERR_FATAL = 3000, /* Unrecoverable error */
- XML_ERR_EOF,
-};
-
-enum xml_state {
- XML_STATE_START = 0,
- XML_STATE_DECL,
- XML_STATE_DOCUMENT_TYPE,
- XML_STATE_CHARS,
- XML_STATE_WHITE,
- XML_STATE_CDATA,
- XML_STATE_STAG,
- XML_STATE_ETAG,
- XML_STATE_COMMENT,
- XML_STATE_PI,
- XML_STATE_EOF,
- XML_STATE_FATAL,
-
- /* Internal states */
- XML_STATE_CHARS_BEFORE_STAG,
- XML_STATE_CHARS_BEFORE_ETAG,
- XML_STATE_CHARS_BEFORE_CDATA,
- XML_STATE_CHARS_BEFORE_PI,
- XML_STATE_CHARS_BEFORE_COMMENT,
- XML_STATE_PROLOG_PI,
- XML_STATE_PROLOG_COMMENT,
- XML_STATE_EPILOG_PI,
- XML_STATE_EPILOG_COMMENT,
-};
-
-enum xml_want {
- XML_WANT_DECL = 1 << XML_STATE_DECL,
- XML_WANT_DOCUMENT_TYPE = 1 << XML_STATE_DOCUMENT_TYPE,
- XML_WANT_CHARS = 1 << XML_STATE_CHARS,
- XML_WANT_WHITE = 1 << XML_STATE_WHITE,
- XML_WANT_CDATA = 1 << XML_STATE_CDATA,
- XML_WANT_STAG = 1 << XML_STATE_STAG,
- XML_WANT_ETAG = 1 << XML_STATE_ETAG,
- XML_WANT_COMMENT = 1 << XML_STATE_COMMENT,
- XML_WANT_PI = 1 << XML_STATE_PI,
- XML_WANT_EOF = 1 << XML_STATE_EOF,
- XML_WANT_ALL = ~0U,
-};
-
-enum xml_flags {
- XML_FLAG_VALIDATING = 0x1,
- XML_FLAG_VERSION_1_1 = 0x2,
-};
-
-struct xml_ext_id {
- char *system_id;
- char *public_id;
-};
-
-enum xml_node_type {
- XML_NODE_ELEM,
- XML_NODE_COMMENT,
- XML_NODE_CDATA,
- XML_NODE_PI,
-};
-
-#define XML_BUF_SIZE 32
-
-struct xml_source {
- struct xml_source *next; /* Link list of pending fastbufs (xml_context.sources) */
- struct fastbuf *fb;
- u32 buf[2 * XML_BUF_SIZE]; /* Read buffer with Unicode values and categories */
- u32 *bptr, *bstop; /* Current state of the buffer */
- uns depth;
- uns flags;
-};
-
-enum xml_source_flags {
- XML_SRC_DECL = 0x1, /* Expected document/text declaration */
- XML_SRC_EOF = 0x2, /* Reached the end of the fastbuf */
- XML_SRC_NEW_LINE = 0x4, /* The last read character is 0xD */
- XML_SRC_SURROUND = 0x8, /* Surround the text with 0x20 (references to parameter entities) */
- XML_SRC_DOCUMENT = 0x10, /* The document entity */
- XML_SRC_EXTERNAL = 0x20, /* An external entity */
-};
-
-#if 0
-struct xml_node {
- cnode n; /* Node for list of parent's sons */
- uns type; /* XML_NODE_x */
- struct xml_node *parent; /* Parent node */
-};
-
-struct xml_elem {
- struct xml_node node;
- char *name; /* Element name */
- clist sons; /* List of subnodes */
- struct xml_dtd_elem *dtd; /* Element DTD */
- slist attrs; /* Link list of attributes */
-};
-#endif
-
-struct xml_context {
- /* Error handling */
- char *err_msg; /* Last error message */
- enum xml_error err_code; /* Last error code */
- void *throw_buf; /* Where to jump on error */
- void (*h_warn)(struct xml_context *ctx); /* Warning callback */
- void (*h_error)(struct xml_context *ctx); /* Recoverable error callback */
- void (*h_fatal)(struct xml_context *ctx); /* Unrecoverable error callback */
-
- /* Memory management */
- struct mempool *pool; /* Most data */
- struct fastbuf *chars; /* Character data */
- struct fastbuf *value; /* Attribute value / comment / processing instruction data */
- char *name; /* Attribute name, processing instruction target */
-
- /* Input */
- struct xml_source *sources; /* Stack of pending sources */
- u32 *bptr, *bstop; /* Character buffer */
- uns depth; /* Nesting level */
-
- /* SAX-like interface */
- void (*h_document_start)(struct xml_context *ctx); /* Called before entering prolog */
- void (*h_document_end)(struct xml_context *ctx); /* Called after leaving epilog */
- void (*h_xml_decl)(struct xml_context *ctx); /* Called after the XML declaration */
- void (*h_doctype_decl)(struct xml_context *ctx); /* Called in the doctype declaration just before internal subset */
- void (*h_pi)(struct xml_context *ctx); /* Called after a processing instruction */
- void (*h_comment)(struct xml_context *ctx); /* Called after a comment */
-
- /* */
- struct xml_node *node; /* Current XML node */
- uns flags; /* XML_FLAG_x */
- struct xml_element *element; /* Current element */
- void *attribute_table;
- char *version_str;
- char *encoding;
- uns standalone;
- char *document_type;
- struct xml_dtd *dtd;
- struct xml_ext_id eid;
- uns state;
- uns want;
-
- void (*start_dtd)(struct xml_context *ctx);
- void (*end_dtd)(struct xml_context *ctx);
- void (*start_element)(struct xml_context *ctx);
- void (*end_element)(struct xml_context *ctx);
- void (*start_cdata)(struct xml_context *ctx);
- void (*end_cdata)(struct xml_context *ctx);
- void (*start_entity)(struct xml_context *ctx);
- void (*end_entity)(struct xml_context *ctx);
- void (*chacacters)(struct xml_context *ctx);
- struct fastbuf *(*resolve_entity)(struct xml_context *ctx);
- void (*notation_decl)(struct xml_context *ctx);
- void (*unparsed_entity_decl)(struct xml_context *ctx);
-};
-
-struct xml_attribute {
- char *name;
- char *value;
- struct xml_element *element;
- struct xml_attribute *next;
- struct xml_dtd_attribute *dtd;
-};
-
-struct xml_element {
- char *name;
- struct xml_attribute *attrs;
- struct xml_element *parent;
- struct xml_dtd_element *dtd;
-};
-
-/*** Document Type Definition (DTD) ***/
-
-struct xml_dtd {
- slist gents; /* Link list of general entities */
- slist pents; /* Link list of parapeter entities */
- slist notns; /* Link list of notations */
- slist elems; /* Link list of elements */
- void *tab_gents; /* Hash table of general entities */
- void *tab_pents; /* Hash table of parameter entities */
- void *tab_notns; /* Hash table of notations */
- void *tab_elems; /* Hash table of elements */
- void *tab_attrs; /* Hash table of element attributes */
- void *tab_evals; /* Hash table of enumerated attribute values */
- void *tab_enotns; /* hash table of enumerated attribute notations */
-};
-
-/* Notations */
-
-enum xml_dtd_notn_flags {
- XML_DTD_NOTN_DECLARED = 0x1, /* The notation has been declared (interbal usage) */
-};
-
-struct xml_dtd_notn {
- snode n; /* Node in xml_dtd.notns */
- uns flags; /* XML_DTD_NOTN_x */
- char *name; /* Notation name */
- struct xml_ext_id eid; /* External id */
-};
-
-/* Entities */
-
-enum xml_dtd_ent_flags {
- XML_DTD_ENT_DECLARED = 0x1, /* The entity has been declared (internal usage) */
- XML_DTD_ENT_VISITED = 0x2, /* Cycle detection (internal usage) */
- XML_DTD_ENT_PARAMETER = 0x4, /* Parameter entity, general otherwise */
- XML_DTD_ENT_EXTERNAL = 0x8, /* External entity, internal otherwise */
- XML_DTD_ENT_UNPARSED = 0x10, /* Unparsed entity, parsed otherwise */
- XML_DTD_ENT_TRIVIAL = 0x20, /* Replacement text is a sequence of characters and character references */
-};
-
-struct xml_dtd_ent {
- snode n; /* Node in xml_dtd.[gp]ents */
- uns flags; /* XML_DTD_ENT_x */
- char *name; /* Entity name */
- char *text; /* Replacement text / expanded replacement text (XML_DTD_ENT_TRVIAL) */
- uns len; /* Text length */
- struct xml_ext_id eid; /* External ID */
- struct xml_dtd_notn *notn; /* Notation (XML_DTD_ENT_UNPARSED only) */
-};
-
-/* Elements */
-
-enum xml_dtd_elem_flags {
- XML_DTD_ELEM_DECLARED = 0x1, /* The element has been declared (internal usage) */
-};
-
-struct xml_dtd_elem {
- snode n;
- uns flags;
- char *name;
- struct xml_dtd_elem_node *node;
-};
-
-struct xml_dtd_elem_node {
- snode n;
- struct xml_dtd_elem_node *parent;
- slist sons;
- uns type;
- uns occur;
-};
-
-enum xml_dtd_elem_node_type {
- XML_DTD_ELEM_PCDATA,
- XML_DTD_ELEM_SEQ,
- XML_DTD_ELEM_OR,
-};
-
-enum xml_dtd_elem_node_occur {
- XML_DTD_ELEM_OCCUR_ONCE,
- XML_DTD_ELEM_OCCUR_OPT,
- XML_DTD_ELEM_OCCUR_MULT,
- XML_DTD_ELEM_OCCUR_PLUS,
-};
-
-/* Attributes */
-
-
-enum xml_dtd_attribute_default {
- XML_ATTR_NONE,
- XML_ATTR_REQUIRED,
- XML_ATTR_IMPLIED,
- XML_ATTR_FIXED,
-};
-
-enum xml_dtd_attribute_type {
- XML_ATTR_CDATA,
- XML_ATTR_ID,
- XML_ATTR_IDREF,
- XML_ATTR_IDREFS,
- XML_ATTR_ENTITY,
- XML_ATTR_ENTITIES,
- XML_ATTR_NMTOKEN,
- XML_ATTR_NMTOKENS,
- XML_ATTR_ENUM,
- XML_ATTR_NOTATION,
-};
-
-struct xml_dtd_attr {
- char *name;
- struct xml_dtd_elem *elem;
- enum xml_dtd_attribute_type type;
- enum xml_dtd_attribute_default default_mode;
- char *default_value;
-};
-
-struct xml_dtd_eval {
- struct xml_dtd_attr *attr;
- char *val;
-};
-
-struct xml_dtd_enotn {
- struct xml_dtd_attr *attr;
- struct xml_dtd_notn *notn;
-};
-
-void xml_init(struct xml_context *ctx);
-void xml_cleanup(struct xml_context *ctx);
-void xml_set_source(struct xml_context *ctx, struct fastbuf *fb);
-int xml_next(struct xml_context *ctx);
-
-#endif
--- /dev/null
+# Makefile for the XML parser
+# (c) 2007 Pavel Charvat <pchar@ucw.cz>
+
+DIRS+=sherlock/xml
+
+LIBSH_MODS+=xml/xml
+LIBSH_XML_INCLUDES=xml/xml.h
+
+$(o)/sherlock/xml/xml-t: $(LIBSH) $(LIBCHARSET)
+$(o)/sherlock/xml/xml.o: $(o)/sherlock/xml/xml-ucat.h
+$(o)/sherlock/xml/xml-ucat.h: $(s)/sherlock/xml/xml-ucat.pl
+ $(M)GEN $@
+ $(Q)$< >$@
+
+API_INCLUDES+=$(o)/sherlock/xml/.include-stamp
+$(o)/sherlock/xml/.include-stamp: $(addprefix $(s)/sherlock/xml/,$(LIBSH_XML_INCLUDES))
+$(o)/sherlock/xml/.include-stamp: IDST=sherlock/xml
+
+include $(s)/sherlock/perl/Makefile
--- /dev/null
+#!/usr/bin/perl
+#
+# UCW Library -- Character map for the XML parser
+#
+# (c) 2007 Pavel Charvat <pchar@ucw.cz>
+#
+# This software may be freely distributed and used according to the terms
+# of the GNU Lesser General Public License.
+#
+
+my @cat = ();
+my @lcat = ();
+my %ids = ();
+my %cls = ();
+for (my $i = 0; $i < 0x10000; $i++) { $cat[$i] = 0; }
+for (my $i = 0; $i < 0x11; $i++) { $lcat[$i] = 0; }
+
+my @white = (0x9, 0xA, 0xD, 0x20);
+my @base_char_1_0 = (
+ [0x0041,0x005A], [0x0061,0x007A], [0x00C0,0x00D6], [0x00D8,0x00F6], [0x00F8,0x00FF], [0x0100,0x0131],
+ [0x0134,0x013E], [0x0141,0x0148], [0x014A,0x017E], [0x0180,0x01C3], [0x01CD,0x01F0], [0x01F4,0x01F5],
+ [0x01FA,0x0217], [0x0250,0x02A8], [0x02BB,0x02C1], 0x0386, [0x0388,0x038A], 0x038C, [0x038E,0x03A1],
+ [0x03A3,0x03CE], [0x03D0,0x03D6], 0x03DA, 0x03DC, 0x03DE, 0x03E0, [0x03E2,0x03F3], [0x0401,0x040C],
+ [0x040E,0x044F], [0x0451,0x045C], [0x045E,0x0481], [0x0490,0x04C4], [0x04C7,0x04C8], [0x04CB,0x04CC],
+ [0x04D0,0x04EB], [0x04EE,0x04F5], [0x04F8,0x04F9], [0x0531,0x0556], 0x0559, [0x0561,0x0586], [0x05D0,0x05EA],
+ [0x05F0,0x05F2], [0x0621,0x063A], [0x0641,0x064A], [0x0671,0x06B7], [0x06BA,0x06BE], [0x06C0,0x06CE],
+ [0x06D0,0x06D3], 0x06D5, [0x06E5,0x06E6], [0x0905,0x0939], 0x093D, [0x0958,0x0961], [0x0985,0x098C],
+ [0x098F,0x0990], [0x0993,0x09A8], [0x09AA,0x09B0], 0x09B2, [0x09B6,0x09B9], [0x09DC,0x09DD], [0x09DF,0x09E1],
+ [0x09F0,0x09F1], [0x0A05,0x0A0A], [0x0A0F,0x0A10], [0x0A13,0x0A28], [0x0A2A,0x0A30], [0x0A32,0x0A33],
+ [0x0A35,0x0A36], [0x0A38,0x0A39], [0x0A59,0x0A5C], 0x0A5E, [0x0A72,0x0A74], [0x0A85,0x0A8B], 0x0A8D,
+ [0x0A8F,0x0A91], [0x0A93,0x0AA8], [0x0AAA,0x0AB0], [0x0AB2,0x0AB3], [0x0AB5,0x0AB9], 0x0ABD, 0x0AE0,
+ [0x0B05,0x0B0C], [0x0B0F,0x0B10], [0x0B13,0x0B28], [0x0B2A,0x0B30], [0x0B32,0x0B33], [0x0B36,0x0B39],
+ 0x0B3D, [0x0B5C,0x0B5D], [0x0B5F,0x0B61], [0x0B85,0x0B8A], [0x0B8E,0x0B90], [0x0B92,0x0B95], [0x0B99,0x0B9A],
+ 0x0B9C, [0x0B9E,0x0B9F], [0x0BA3,0x0BA4], [0x0BA8,0x0BAA], [0x0BAE,0x0BB5], [0x0BB7,0x0BB9], [0x0C05,0x0C0C],
+ [0x0C0E,0x0C10], [0x0C12,0x0C28], [0x0C2A,0x0C33], [0x0C35,0x0C39], [0x0C60,0x0C61], [0x0C85,0x0C8C],
+ [0x0C8E,0x0C90], [0x0C92,0x0CA8], [0x0CAA,0x0CB3], [0x0CB5,0x0CB9], 0x0CDE, [0x0CE0,0x0CE1], [0x0D05,0x0D0C],
+ [0x0D0E,0x0D10], [0x0D12,0x0D28], [0x0D2A,0x0D39], [0x0D60,0x0D61], [0x0E01,0x0E2E], 0x0E30, [0x0E32,0x0E33],
+ [0x0E40,0x0E45], [0x0E81,0x0E82], 0x0E84, [0x0E87,0x0E88], 0x0E8A, 0x0E8D, [0x0E94,0x0E97], [0x0E99,0x0E9F],
+ [0x0EA1,0x0EA3], 0x0EA5, 0x0EA7, [0x0EAA,0x0EAB], [0x0EAD,0x0EAE], 0x0EB0, [0x0EB2,0x0EB3], 0x0EBD,
+ [0x0EC0,0x0EC4], [0x0F40,0x0F47], [0x0F49,0x0F69], [0x10A0,0x10C5], [0x10D0,0x10F6], 0x1100, [0x1102,0x1103],
+ [0x1105,0x1107], 0x1109, [0x110B,0x110C], [0x110E,0x1112], 0x113C, 0x113E, 0x1140, 0x114C, 0x114E, 0x1150,
+ [0x1154,0x1155], 0x1159, [0x115F,0x1161], 0x1163, 0x1165, 0x1167, 0x1169, [0x116D,0x116E], [0x1172,0x1173],
+ 0x1175, 0x119E, 0x11A8, 0x11AB, [0x11AE,0x11AF], [0x11B7,0x11B8], 0x11BA, [0x11BC,0x11C2], 0x11EB, 0x11F0,
+ 0x11F9, [0x1E00,0x1E9B], [0x1EA0,0x1EF9], [0x1F00,0x1F15], [0x1F18,0x1F1D], [0x1F20,0x1F45], [0x1F48,0x1F4D],
+ [0x1F50,0x1F57], 0x1F59, 0x1F5B, 0x1F5D, [0x1F5F,0x1F7D], [0x1F80,0x1FB4], [0x1FB6,0x1FBC], 0x1FBE,
+ [0x1FC2,0x1FC4], [0x1FC6,0x1FCC], [0x1FD0,0x1FD3], [0x1FD6,0x1FDB], [0x1FE0,0x1FEC], [0x1FF2,0x1FF4],
+ [0x1FF6,0x1FFC], 0x2126, [0x212A,0x212B], 0x212E, [0x2180,0x2182], [0x3041,0x3094], [0x30A1,0x30FA],
+ [0x3105,0x312C], [0xAC00,0xD7A3]);
+my @ideographic_1_0 = ([0x4E00,0x9FA5], 0x3007, [0x3021,0x3029]);
+my @combining_char_1_0 = (
+ [0x0300,0x0345], [0x0360,0x0361], [0x0483,0x0486], [0x0591,0x05A1], [0x05A3,0x05B9], [0x05BB,0x05BD],
+ 0x05BF, [0x05C1,0x05C2], 0x05C4, [0x064B,0x0652], 0x0670, [0x06D6,0x06DC], [0x06DD,0x06DF], [0x06E0,0x06E4],
+ [0x06E7,0x06E8], [0x06EA,0x06ED], [0x0901,0x0903], 0x093C, [0x093E,0x094C], 0x094D, [0x0951,0x0954],
+ [0x0962,0x0963], [0x0981,0x0983], 0x09BC, 0x09BE, 0x09BF, [0x09C0,0x09C4], [0x09C7,0x09C8], [0x09CB,0x09CD],
+ 0x09D7, [0x09E2,0x09E3], 0x0A02, 0x0A3C, 0x0A3E, 0x0A3F, [0x0A40,0x0A42], [0x0A47,0x0A48], [0x0A4B,0x0A4D],
+ [0x0A70,0x0A71], [0x0A81,0x0A83], 0x0ABC, [0x0ABE,0x0AC5], [0x0AC7,0x0AC9], [0x0ACB,0x0ACD], [0x0B01,0x0B03],
+ 0x0B3C, [0x0B3E,0x0B43], [0x0B47,0x0B48], [0x0B4B,0x0B4D], [0x0B56,0x0B57], [0x0B82,0x0B83], [0x0BBE,0x0BC2],
+ [0x0BC6,0x0BC8], [0x0BCA,0x0BCD], 0x0BD7, [0x0C01,0x0C03], [0x0C3E,0x0C44], [0x0C46,0x0C48], [0x0C4A,0x0C4D],
+ [0x0C55,0x0C56], [0x0C82,0x0C83], [0x0CBE,0x0CC4], [0x0CC6,0x0CC8], [0x0CCA,0x0CCD], [0x0CD5,0x0CD6],
+ [0x0D02,0x0D03], [0x0D3E,0x0D43], [0x0D46,0x0D48], [0x0D4A,0x0D4D], 0x0D57, 0x0E31, [0x0E34,0x0E3A],
+ [0x0E47,0x0E4E], 0x0EB1, [0x0EB4,0x0EB9], [0x0EBB,0x0EBC], [0x0EC8,0x0ECD], [0x0F18,0x0F19], 0x0F35,
+ 0x0F37, 0x0F39, 0x0F3E, 0x0F3F, [0x0F71,0x0F84], [0x0F86,0x0F8B], [0x0F90,0x0F95], 0x0F97, [0x0F99,0x0FAD],
+ [0x0FB1,0x0FB7], 0x0FB9, [0x20D0,0x20DC], 0x20E1, [0x302A,0x302F], 0x3099, 0x309A);
+my @digit_1_0 = (
+ [0x0030,0x0039], [0x0660,0x0669], [0x06F0,0x06F9], [0x0966,0x096F], [0x09E6,0x09EF], [0x0A66,0x0A6F],
+ [0x0AE6,0x0AEF], [0x0B66,0x0B6F], [0x0BE7,0x0BEF], [0x0C66,0x0C6F], [0x0CE6,0x0CEF], [0x0D66,0x0D6F],
+ [0x0E50,0x0E59], [0x0ED0,0x0ED9], [0x0F20,0x0F29]);
+my @extender_1_0 = (
+ 0x00B7, 0x02D0, 0x02D1, 0x0387, 0x0640, 0x0E46, 0x0EC6, 0x3005, [0x3031,0x3035], [0x309D,0x309E], [0x30FC,0x30FE]);
+my @sname_1_1 = (
+ "[:A-Z_a-z]", [0xC0,0xD6], [0xD8,0xF6], [0xF8,0x2FF], [0x370,0x37D], [0x37F,0x1FFF],
+ [0x200C,0x200D], [0x2070,0x218F], [0x2C00,0x2FEF], [0x3001,0xD7FF], [0xF900,0xFDCF], [0xFDF0,0xFFFD], [0x10000,0xEFFFF]);
+
+set("WHITE", @white);
+set("NEW_LINE_1_0", 0xA, 0xD);
+set("NEW_LINE_1_1", 0xA, 0xD, 0x85, 0x2028);
+set("DIGIT", "[0-9]");
+set("XDIGIT", "[0-9a-fA-F]");
+set("VALID_1_0", @white, [0x20,0xD7FF], [0xE000,0xFFFD], [0x10000,0x10FFFF]);
+set("VALID_1_1", [0x1,0xD7FF], [0xE000,0xFFFD], [0x10000,0x10FFFF]);
+set("UNRESTRICTED_1_1", @white, [0x20,0x7E], 0x85, [0xA0,0xD7FF], [0xE000,0xFFFD], [0x10000,0x10FFFF]);
+set("PUBID", 0x20, 0xD, 0xA, "[-a-zA-Z0-9'()+,./:=?:!*#@\$_%]");
+set("ENC_SNAME", "[a-zA-Z]");
+set("ENC_NAME", "[-a-zA-Z0-9._]");
+set("SNAME_1_0", "[_:]", @base_char_1_0, @ideographic_1_0);
+set("NAME_1_0", "[-_:.]", @base_char_1_0, @ideographic_1_0, @combining_char_1_0, @digit_1_0, @extender_1_0);
+set("SNAME_1_1", @sname_1_1);
+set("NAME_1_1", @sname_1_1, "[-.0-9]", 0xB7, [0x0300,0x036F], [0x203F,0x2040]);
+set("DECL", @white, [0x20,0x7E]);
+set("GT", "[>]");
+
+print "/* Automatically generated by xml-ucat.pl */\n\n";
+find_cls();
+gen_enum();
+gen_tabs();
+
+sub set {
+ my $id = shift;
+ $ids{$id} = scalar keys(%ids) if !defined($ids{$id});
+ my $mask = 1 << $ids{$id};
+ foreach my $i (@_) {
+ if (ref($i) eq "ARRAY") {
+ my $j = $i->[0];
+ for (; $j <= $i->[1] && $j < 0x10000; $j++) { $cat[$j] |= $mask; }
+ for (; $j <= $i->[1]; $j += 0x10000) { $lcat[$j >> 16] |= $mask; }
+ }
+ elsif ($i =~ /^\[/) { for (my $j=0; $j < 128; $j++) { if (chr($j) =~ /$i/) { $cat[$j] |= $mask; } } }
+ else { $cat[$i] |= $mask; }
+ }
+}
+
+sub find_cls {
+ foreach (my $i=0; $i<@cat; $i++) { $cls{$cat[$i]} = scalar keys(%cls) if !defined($cls{$cat[$i]}); }
+ foreach (my $i=0; $i<@lcat; $i++) { $cls{$lcat[$i]} = scalar keys(%cls) if !defined($cls{$lcat[$i]}); }
+}
+
+sub gen_enum {
+ print "enum xml_char_type {\n";
+ foreach my $id (sort keys %ids) {
+ my $mask = 0;
+ foreach my $i (keys %cls) {
+ $mask |= 1 << $cls{$i} if $cls{$i} && ($i & (1 << $ids{$id}));
+ }
+ printf " XML_CHAR_%-20s = 0x%08x,\n", $id, $mask;
+ }
+ print "};\n\n";
+}
+
+sub gen_tabs {
+ my @tab = ();
+ my %hash = ();
+ print "static const uns xml_char_tab1[] = {\n ";
+ for (my $t=0; $t<256; $t++) {
+ my $i = $t * 256;
+ my @x = ();
+ for (my $j=0; $j<256; $j += 32) {
+ push @x, join(",", map($cls{$_}, @cat[$i+$j..$i+$j+31]));
+ }
+ my $sub = " " . join(",\n ", @x);
+ if (!defined($hash{$sub})) {
+ $hash{$sub} = 256 * scalar @tab;
+ push @tab, $sub;
+ }
+ printf("0x%x", $hash{$sub});
+ print((~$t & 15) ? "," : ($t < 255) ? ",\n " : "\n};\n\n");
+ }
+
+ print "static const byte xml_char_tab2[] = {\n";
+ print join(",\n\n", @tab);
+ print "\n};\n\n";
+
+ my @l = ();
+ for (my $i=0; $i<0x11; $i++) {
+ push @l, sprintf("%d", $cls{$lcat[$i]});
+ }
+ print "static const byte xml_char_tab3[] = {" . join(",", @l) . "};\n";
+}
--- /dev/null
+/*
+ * Sherlock Library -- A simple XML parser
+ *
+ * (c) 2007 Pavel Charvat <pchar@ucw.cz>
+ *
+ * This software may be freely distributed and used according to the terms
+ * of the GNU Lesser General Public License.
+ */
+
+/* TODO:
+ * - iface
+ * - stack-like memory handling where possible
+ */
+
+#define LOCAL_DEBUG
+
+#include "lib/lib.h"
+#include "lib/mempool.h"
+#include "lib/fastbuf.h"
+#include "lib/ff-utf8.h"
+#include "lib/ff-binary.h"
+#include "lib/chartype.h"
+#include "lib/unicode.h"
+#include "lib/hashfunc.h"
+#include "lib/stkstring.h"
+#include "lib/unaligned.h"
+#include "charset/charconv.h"
+#include "charset/fb-charconv.h"
+#include "sherlock/xml/xml.h"
+
+#include <setjmp.h>
+
+/*** Debugging ***/
+
+#ifdef LOCAL_DEBUG
+#define TRACE(c, f, p...) do { DBG("XML %u: " f, xml_row(c), ##p); } while(0)
+#else
+#define TRACE(c, f, p...) do {} while(0)
+#endif
+
+static uns xml_row(struct xml_context *ctx);
+
+/*** Error handling ***/
+
+static void NONRET
+xml_throw(struct xml_context *ctx)
+{
+ ASSERT(ctx->err_code && ctx->throw_buf);
+ longjmp(*(jmp_buf *)ctx->throw_buf, ctx->err_code);
+}
+
+static void
+xml_warn(struct xml_context *ctx, const char *format, ...)
+{
+ if (ctx->h_warn)
+ {
+ va_list args;
+ va_start(args, format);
+ ctx->err_msg = stk_vprintf(format, args);
+ ctx->err_code = XML_ERR_WARN;
+ va_end(args);
+ ctx->h_warn(ctx);
+ ctx->err_msg = NULL;
+ ctx->err_code = XML_ERR_OK;
+ }
+}
+
+static void
+xml_error(struct xml_context *ctx, const char *format, ...)
+{
+ if (ctx->h_error)
+ {
+ va_list args;
+ va_start(args, format);
+ ctx->err_msg = stk_vprintf(format, args);
+ ctx->err_code = XML_ERR_ERROR;
+ va_end(args);
+ ctx->h_error(ctx);
+ ctx->err_msg = NULL;
+ ctx->err_code = XML_ERR_OK;
+ }
+}
+
+static void NONRET
+xml_fatal(struct xml_context *ctx, const char *format, ...)
+{
+ va_list args;
+ va_start(args, format);
+ ctx->err_msg = mp_vprintf(ctx->pool, format, args);
+ ctx->err_code = XML_ERR_FATAL;
+ ctx->state = XML_STATE_FATAL;
+ va_end(args);
+ if (ctx->h_fatal)
+ ctx->h_fatal(ctx);
+ xml_throw(ctx);
+}
+
+/*** Charecter categorization ***/
+
+#include "obj/lib/xml-ucat.h"
+
+static inline uns
+xml_char_cat(uns c)
+{
+ if (c < 0x10000)
+ return 1U << xml_char_tab2[(c & 0xff) + xml_char_tab1[c >> 8]];
+ else if (likely(c < 0x110000))
+ return 1U << xml_char_tab3[c >> 16];
+ else
+ return 1;
+}
+
+/*** Generic UTF decoding ***/
+
+static uns
+bget_utf16_le_slow(struct fastbuf *fb, uns repl)
+{
+ if ((int)bpeekc(fb) < 0)
+ return ~0U;
+ uns u = bgetw_le(fb), x, y;
+ if ((int)u < 0)
+ return repl;
+ if ((x = u - 0xd800) >= 0x800)
+ return u;
+ if (x >= 0x400 || (int)bpeekc(fb) < 0 || (y = bgetw_le(fb) - 0xdc00) >= 0x400)
+ return repl;
+ return 0x10000 + (x << 10) + y;
+}
+
+static uns
+bget_utf16_be_slow(struct fastbuf *fb, uns repl)
+{
+ if ((int)bpeekc(fb) < 0)
+ return ~0U;
+ uns u = bgetw_be(fb), x, y;
+ if ((int)u < 0)
+ return repl;
+ if ((x = u - 0xd800) >= 0x800)
+ return u;
+ if (x >= 0x400 || (int)bpeekc(fb) < 0 || (y = bgetw_be(fb) - 0xdc00) >= 0x400)
+ return repl;
+ return 0x10000 + (x << 10) + y;
+}
+
+static inline uns
+bget_utf16_le_repl(struct fastbuf *fb, uns repl)
+{
+ uns u;
+ if (bavailr(fb) >= 4)
+ {
+ fb->bptr = utf16_le_get_repl(fb->bptr, &u, repl);
+ return u;
+ }
+ else
+ return bget_utf16_le_slow(fb, repl);
+}
+
+static inline uns
+bget_utf16_be_repl(struct fastbuf *fb, uns repl)
+{
+ uns u;
+ if (bavailr(fb) >= 4)
+ {
+ fb->bptr = utf16_be_get_repl(fb->bptr, &u, repl);
+ return u;
+ }
+ else
+ return bget_utf16_be_slow(fb, repl);
+}
+
+/*** Memory management ***/
+
+static void NONRET
+xml_fatal_nested(struct xml_context *ctx)
+{
+ xml_fatal(ctx, "Entity not nested correctly");
+}
+
+static inline void
+xml_inc(struct xml_context *ctx)
+{
+ /* Called after the first character of a block */
+ TRACE(ctx, "inc");
+ ctx->depth++;
+}
+
+static inline void
+xml_dec(struct xml_context *ctx)
+{
+ /* Called after the last character of a block */
+ TRACE(ctx, "dec");
+ if (unlikely(!ctx->depth--))
+ xml_fatal_nested(ctx);
+}
+
+static inline void
+xml_push(struct xml_context *ctx)
+{
+ TRACE(ctx, "push");
+ struct xml_stack *s = mp_alloc(ctx->pool, sizeof(*s));
+ mp_save(ctx->pool, &s->saved_pool);
+ s->saved_flags = ctx->flags;
+ s->next = ctx->stack;
+ ctx->stack = s;
+ xml_inc(ctx);
+}
+
+static inline void
+xml_pop(struct xml_context *ctx)
+{
+ TRACE(ctx, "pop");
+ xml_dec(ctx);
+ struct xml_stack *s = ctx->stack;
+ ASSERT(s);
+ ctx->stack = s->next;
+ ctx->flags = s->saved_flags;
+ mp_restore(ctx->pool, &s->saved_pool);
+}
+
+#define XML_HASH_HDR_SIZE ALIGN_TO(sizeof(void *), CPU_STRUCT_ALIGN)
+#define XML_HASH_GIVE_ALLOC struct HASH_PREFIX(table); \
+ static inline void *HASH_PREFIX(alloc)(struct HASH_PREFIX(table) *t, uns size) \
+ { return mp_alloc(*(void **)((void *)t - XML_HASH_HDR_SIZE), size); } \
+ static inline void HASH_PREFIX(free)(struct HASH_PREFIX(table) *t UNUSED, void *p UNUSED) {}
+
+static void *
+xml_hash_new(struct mempool *pool, uns size)
+{
+ void *tab = mp_alloc_zero(pool, size + XML_HASH_HDR_SIZE);
+ *(void **)tab = pool;
+ return tab + XML_HASH_HDR_SIZE;
+}
+
+/*** Reading of document/external entities ***/
+
+static void NONRET
+xml_eof(struct xml_context *ctx)
+{
+ ctx->err_msg = "Unexpected EOF";
+ ctx->err_code = XML_ERR_EOF;
+ xml_throw(ctx);
+}
+
+static inline void
+xml_add_char(u32 **bstop, uns c)
+{
+ *(*bstop)++ = c;
+ *(*bstop)++ = xml_char_cat(c);
+}
+
+static struct xml_source *
+xml_push_source(struct xml_context *ctx, uns flags)
+{
+ xml_push(ctx);
+ struct xml_source *src = ctx->src;
+ if (src)
+ {
+ src->bptr = ctx->bptr;
+ src->bstop = ctx->bstop;
+ }
+ src = mp_alloc_zero(ctx->pool, sizeof(*src));
+ src->next = ctx->src;
+ src->saved_depth = ctx->depth;
+ ctx->src = src;
+ ctx->flags = (ctx->flags & ~(XML_FLAG_SRC_EOF | XML_FLAG_SRC_EXPECTED_DECL | XML_FLAG_SRC_NEW_LINE | XML_FLAG_SRC_SURROUND | XML_FLAG_SRC_DOCUMENT)) | flags;
+ ctx->bstop = ctx->bptr = src->buf;
+ ctx->depth = 0;
+ if (flags & XML_FLAG_SRC_SURROUND)
+ xml_add_char(&ctx->bstop, 0x20);
+ return src;
+}
+
+static void
+xml_pop_source(struct xml_context *ctx)
+{
+ TRACE(ctx, "xml_pop_source");
+ if (unlikely(ctx->depth != 0))
+ xml_fatal_nested(ctx);
+ struct xml_source *src = ctx->src;
+ ASSERT(src);
+ bclose(src->fb);
+ ctx->depth = src->saved_depth;
+ ctx->src = src = src->next;
+ if (src)
+ {
+ ctx->bptr = src->bptr;
+ ctx->bstop = src->bstop;
+ }
+ xml_pop(ctx);
+ if (unlikely(!src))
+ xml_eof(ctx);
+}
+
+static void xml_refill_utf8(struct xml_context *ctx);
+
+static void
+xml_push_entity(struct xml_context *ctx, struct xml_dtd_ent *ent)
+{
+ TRACE(ctx, "xml_push_entity");
+ uns cat1 = ctx->src->refill_cat1;
+ uns cat2 = ctx->src->refill_cat2;
+ struct xml_source *src = xml_push_source(ctx, 0);
+ src->refill_cat1 = cat1;
+ src->refill_cat2 = cat2;
+ if (ent->flags & XML_DTD_ENT_EXTERNAL)
+ xml_fatal(ctx, "External entities not implemented"); // FIXME
+ else
+ {
+ fbbuf_init_read(src->fb = &src->wrap_fb, ent->text, ent->len, 0);
+ src->refill = xml_refill_utf8;
+ }
+}
+
+void
+xml_set_source(struct xml_context *ctx, struct fastbuf *fb)
+{
+ TRACE(ctx, "xml_set_source");
+ ASSERT(!ctx->src);
+ struct xml_source *src = xml_push_source(ctx, XML_FLAG_SRC_DOCUMENT | XML_FLAG_SRC_EXPECTED_DECL);
+ src->fb = fb;
+}
+
+static uns
+xml_error_restricted(struct xml_context *ctx, uns c)
+{
+ xml_error(ctx, "Restricted char U+%04X", c);
+ return UNI_REPLACEMENT;
+}
+
+static void xml_parse_decl(struct xml_context *ctx);
+
+#define REFILL(ctx, func, params...) \
+ struct xml_source *src = ctx->src; \
+ struct fastbuf *fb = src->fb; \
+ if (ctx->bptr == ctx->bstop) \
+ ctx->bptr = ctx->bstop = src->buf; \
+ uns f = ctx->flags, c, t1 = src->refill_cat1, t2 = src->refill_cat2, row = src->row; \
+ u32 *bend = src->buf + ARRAY_SIZE(src->buf), *bstop = ctx->bstop, \
+ *last_0xd = (f & XML_FLAG_SRC_NEW_LINE) ? bstop : bend; \
+ do \
+ { \
+ c = func(fb, ##params); \
+ uns t = xml_char_cat(c); \
+ if (t & t1) \
+ /* Typical branch */ \
+ *bstop++ = c, *bstop++ = t; \
+ else if (t & t2) \
+ { \
+ /* New line */ \
+ /* XML 1.0: 0xA | 0xD | 0xD 0xA */ \
+ /* XML 1.1: 0xA | 0xD | 0xD 0xA | 0x85 | 0xD 0x85 | 0x2028 */ \
+ if (c == 0xd) \
+ last_0xd = bstop + 2; \
+ else if (c != 0x2028 && last_0xd == bstop) \
+ { \
+ last_0xd = bend; \
+ continue; \
+ } \
+ xml_add_char(&bstop, 0xa), row++; \
+ } \
+ else if (c == '>') \
+ { \
+ /* Used only in XML/TextDecl to switch the encoding */ \
+ *bstop++ = c, *bstop++ = t; \
+ break; \
+ } \
+ else if ((int)c >= 0) \
+ /* Restricted character */ \
+ xml_add_char(&bstop, xml_error_restricted(ctx, c)); \
+ else \
+ { \
+ /* EOF */ \
+ if (f & XML_FLAG_SRC_SURROUND) \
+ xml_add_char(&bstop, 0x20); \
+ f |= XML_FLAG_SRC_EOF; \
+ break; \
+ } \
+ } \
+ while (bstop < bend); \
+ ctx->flags = (last_0xd == bstop) ? f | XML_FLAG_SRC_NEW_LINE : f & ~XML_FLAG_SRC_NEW_LINE; \
+ ctx->bstop = bstop; \
+ src->row = row;
+
+static void
+xml_refill_utf8(struct xml_context *ctx)
+{
+ // FIXME: report corrupted encoding
+ REFILL(ctx, bget_utf8);
+}
+
+static void
+xml_refill_utf16_le(struct xml_context *ctx)
+{
+ REFILL(ctx, bget_utf16_le_repl, 0);
+}
+
+static void
+xml_refill_utf16_be(struct xml_context *ctx)
+{
+ REFILL(ctx, bget_utf16_be_repl, 0);
+}
+
+#if 0
+static inline uns
+xml_refill_libcharset_bget(struct fastbuf *fb, unsigned short int *in_to_x)
+{
+ // FIXME: slow
+ int c;
+ return (unlikely(c = bgetc(fb) < 0)) ? c : (int)conv_x_to_ucs(in_to_x[c]);
+}
+
+static void
+xml_refill_libcharset(struct xml_context *ctx)
+{
+ unsigned short int *in_to_x = ctx->src->refill_in_to_x;
+ REFILL(ctx, xml_refill_libcharset_bget, in_to_x);
+}
+#endif
+
+#undef REFILL
+
+static void
+xml_refill(struct xml_context *ctx)
+{
+ do
+ {
+ if (ctx->flags & XML_FLAG_SRC_EOF)
+ xml_pop_source(ctx);
+ else if (ctx->flags & XML_FLAG_SRC_EXPECTED_DECL)
+ xml_parse_decl(ctx);
+ else
+ {
+ ctx->src->refill(ctx);
+ TRACE(ctx, "refilled %u characters", (uns)((ctx->bstop - ctx->bptr) / 2));
+ }
+ }
+ while (ctx->bptr == ctx->bstop);
+}
+
+static inline uns
+xml_peek_char(struct xml_context *ctx)
+{
+ if (ctx->bptr == ctx->bstop)
+ xml_refill(ctx);
+ return ctx->bptr[0];
+}
+
+static inline uns
+xml_peek_cat(struct xml_context *ctx)
+{
+ if (ctx->bptr == ctx->bstop)
+ xml_refill(ctx);
+ return ctx->bptr[1];
+}
+
+static inline uns
+xml_get_char(struct xml_context *ctx)
+{
+ uns c = xml_peek_char(ctx);
+ ctx->bptr += 2;
+ return c;
+}
+
+static inline uns
+xml_get_cat(struct xml_context *ctx)
+{
+ uns c = xml_peek_cat(ctx);
+ ctx->bptr += 2;
+ return c;
+}
+
+static inline uns
+xml_last_char(struct xml_context *ctx)
+{
+ return ctx->bptr[-2];
+}
+
+static inline uns
+xml_last_cat(struct xml_context *ctx)
+{
+ return ctx->bptr[-1];
+}
+
+static inline uns
+xml_skip_char(struct xml_context *ctx)
+{
+ uns c = ctx->bptr[0];
+ ctx->bptr += 2;
+ return c;
+}
+
+static inline uns
+xml_unget_char(struct xml_context *ctx)
+{
+ return *(ctx->bptr -= 2);
+}
+
+static uns
+xml_row(struct xml_context *ctx)
+{
+ struct xml_source *src = ctx->src;
+ if (!src)
+ return 0;
+ uns row = src->row;
+ for (u32 *p = ctx->bstop; p != ctx->bptr; p -= 2)
+ if (p[-1] & src->refill_cat2)
+ row--;
+ return row + 1;
+}
+
+/*** Basic parsing ***/
+
+static void NONRET
+xml_fatal_expected(struct xml_context *ctx, uns c)
+{
+ xml_fatal(ctx, "Expected '%c'", c);
+}
+
+static void NONRET
+xml_fatal_expected_white(struct xml_context *ctx)
+{
+ xml_fatal(ctx, "Expected a white space");
+}
+
+static void NONRET
+xml_fatal_expected_quot(struct xml_context *ctx)
+{
+ xml_fatal(ctx, "Expected a quotation mark");
+}
+
+static inline uns
+xml_parse_white(struct xml_context *ctx, uns mandatory)
+{
+ /* mandatory=1 -> S ::= (#x20 | #x9 | #xD | #xA)+
+ * mandatory=0 -> S? */
+ uns cnt = 0;
+ while (xml_peek_cat(ctx) & XML_CHAR_WHITE)
+ {
+ xml_skip_char(ctx);
+ cnt++;
+ }
+ if (unlikely(mandatory && !cnt))
+ xml_fatal_expected_white(ctx);
+ return cnt;
+}
+
+static inline void
+xml_parse_char(struct xml_context *ctx, uns c)
+{
+ /* Consumes a given Unicode character */
+ if (unlikely(c != xml_get_char(ctx)))
+ xml_fatal_expected(ctx, c);
+}
+
+static inline void
+xml_parse_seq(struct xml_context *ctx, const char *seq)
+{
+ /* Consumes a given sequence of ASCII characters */
+ while (*seq)
+ xml_parse_char(ctx, *seq++);
+}
+
+static void
+xml_parse_eq(struct xml_context *ctx)
+{
+ /* Eq ::= S? '=' S? */
+ xml_parse_white(ctx, 0);
+ xml_parse_char(ctx, '=');
+ xml_parse_white(ctx, 0);
+}
+
+static inline uns
+xml_parse_quote(struct xml_context *ctx)
+{
+ /* "'" | '"' */
+ uns c = xml_get_char(ctx);
+ if (unlikely(c != '\'' && c != '\"'))
+ xml_fatal_expected_quot(ctx);
+ return c;
+}
+
+/* Names and nmtokens */
+
+static char *
+xml_parse_string(struct xml_context *ctx, uns first_cat, uns next_cat, char *err)
+{
+ char *p = mp_start_noalign(ctx->pool, 1);
+ if (unlikely(!(xml_peek_cat(ctx) & first_cat)))
+ xml_fatal(ctx, "%s", err);
+ do
+ {
+ p = mp_spread(ctx->pool, p, 5);
+ p = utf8_32_put(p, xml_skip_char(ctx));
+ }
+ while (xml_peek_cat(ctx) & next_cat);
+ *p++ = 0;
+ return mp_end(ctx->pool, p);
+}
+
+static void
+xml_skip_string(struct xml_context *ctx, uns first_cat, uns next_cat, char *err)
+{
+ if (unlikely(!(xml_get_cat(ctx) & first_cat)))
+ xml_fatal(ctx, "%s", err);
+ while (xml_peek_cat(ctx) & next_cat)
+ xml_skip_char(ctx);
+}
+
+static char *
+xml_parse_name(struct xml_context *ctx)
+{
+ /* Name ::= NameStartChar (NameChar)* */
+ return xml_parse_string(ctx,
+ !(ctx->flags & XML_FLAG_VERSION_1_1) ? XML_CHAR_SNAME_1_0 : XML_CHAR_SNAME_1_1,
+ !(ctx->flags & XML_FLAG_VERSION_1_1) ? XML_CHAR_NAME_1_0 : XML_CHAR_NAME_1_1,
+ "Expected a name");
+}
+
+static void
+xml_skip_name(struct xml_context *ctx)
+{
+ xml_skip_string(ctx,
+ !(ctx->flags & XML_FLAG_VERSION_1_1) ? XML_CHAR_SNAME_1_0 : XML_CHAR_SNAME_1_1,
+ !(ctx->flags & XML_FLAG_VERSION_1_1) ? XML_CHAR_NAME_1_0 : XML_CHAR_NAME_1_1,
+ "Expected a name");
+}
+
+static char *
+xml_parse_nmtoken(struct xml_context *ctx)
+{
+ /* Nmtoken ::= (NameChar)+ */
+ uns cat = !(ctx->flags & XML_FLAG_VERSION_1_1) ? XML_CHAR_NAME_1_0 : XML_CHAR_NAME_1_1;
+ return xml_parse_string(ctx, cat, cat, "Expected a nmtoken");
+}
+
+/* Simple literals */
+
+static char *
+xml_parse_system_literal(struct xml_context *ctx)
+{
+ /* SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'") */
+ char *p = mp_start_noalign(ctx->pool, 1);
+ uns q = xml_parse_quote(ctx), c;
+ while ((c = xml_get_char(ctx)) != q)
+ {
+ p = mp_spread(ctx->pool, p, 5);
+ p = utf8_32_put(p, c);
+ }
+ *p++ = 0;
+ return mp_end(ctx->pool, p);
+}
+
+static char *
+xml_parse_pubid_literal(struct xml_context *ctx)
+{
+ /* PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'" */
+ char *p = mp_start_noalign(ctx->pool, 1);
+ uns q = xml_parse_quote(ctx), c;
+ while ((c = xml_get_char(ctx)) != q)
+ {
+ if (unlikely(!(xml_last_cat(ctx) & XML_CHAR_PUBID)))
+ xml_fatal(ctx, "Expected a pubid character");
+ p = mp_spread(ctx->pool, p, 2);
+ *p++ = c;
+ }
+ *p++ = 0;
+ return mp_end(ctx->pool, p);
+}
+
+static char *
+xml_parse_encoding_name(struct xml_context *ctx)
+{
+ /* EncName ::= '"' [A-Za-z] ([A-Za-z0-9._] | '-')* '"' | "'" [A-Za-z] ([A-Za-z0-9._] | '-')* "'" */
+ char *p = mp_start_noalign(ctx->pool, 1);
+ uns q = xml_parse_quote(ctx);
+ if (unlikely(!(xml_get_cat(ctx) & XML_CHAR_ENC_SNAME)))
+ xml_fatal(ctx, "Invalid character in the encoding name");
+ while (1)
+ {
+ p = mp_spread(ctx->pool, p, 2);
+ *p++ = xml_last_char(ctx);
+ if (xml_get_char(ctx) == q)
+ break;
+ if (unlikely(!(xml_last_cat(ctx) & XML_CHAR_ENC_NAME)))
+ xml_fatal(ctx, "Invalid character in the encoding name");
+ }
+ *p++ = 0;
+ return mp_end(ctx->pool, p);
+}
+
+/* Document/external entity header */
+
+static inline void
+xml_init_cats(struct xml_context *ctx, uns mask)
+{
+ if (!(ctx->flags & XML_FLAG_VERSION_1_1))
+ {
+ ctx->src->refill_cat1 = XML_CHAR_VALID_1_0 & ~XML_CHAR_NEW_LINE_1_0 & ~mask;
+ ctx->src->refill_cat2 = XML_CHAR_NEW_LINE_1_0;
+ }
+ else
+ {
+ ctx->src->refill_cat1 = XML_CHAR_UNRESTRICTED_1_1 & ~XML_CHAR_NEW_LINE_1_1 & ~mask;
+ ctx->src->refill_cat2 = XML_CHAR_NEW_LINE_1_1;
+ }
+}
+
+static void
+xml_init_charconv(struct xml_context *ctx, int cs)
+{
+ // FIXME: hack
+ struct xml_source *src = ctx->src;
+ TRACE(ctx, "wrapping charset %s", charset_name(cs));
+#if 0
+ struct conv_context conv;
+ conv_set_charset(&conv, cs, CONV_CHARSET_UTF8);
+ src->refill = xml_refill_libcharset;
+ src->refill_in_to_x = conv.in_to_x;
+#else
+ src->fb = fb_wrap_charconv_in(src->fb, cs, CONV_CHARSET_UTF8);
+ // FIXME: memory leak
+#endif
+}
+
+static void
+xml_parse_decl(struct xml_context *ctx)
+{
+ TRACE(ctx, "xml_parse_decl");
+ struct xml_source *src = ctx->src;
+ ctx->flags &= ~XML_FLAG_SRC_EXPECTED_DECL;
+
+ /* Setup valid Unicode ranges and force the reader to abort refill() after each '>', where we can switch encoding or XML version */
+ xml_init_cats(ctx, XML_CHAR_GT);
+
+ /* Initialize the supplied charset (if any) or try to guess it */
+ char *expected_encoding = src->expected_encoding ? : src->fb_encoding;
+ src->refill = xml_refill_utf8;
+ int bom = bpeekc(src->fb);
+ if (bom < 0)
+ ctx->flags |= XML_FLAG_SRC_EOF;
+ if (!src->fb_encoding)
+ {
+ if (bom == 0xfe)
+ src->refill = xml_refill_utf16_be;
+ else if (bom == 0xff)
+ src->refill = xml_refill_utf16_le;
+ }
+ else
+ {
+ int cs = find_charset_by_name(src->fb_encoding);
+ if (cs == CONV_CHARSET_UTF8)
+ {}
+ else if (cs >= 0)
+ {
+ xml_init_charconv(ctx, cs);
+ bom = 0;
+ }
+ else if (strcasecmp(src->fb_encoding, "UTF-16"))
+ {
+ src->refill = xml_refill_utf16_be;
+ if (bom == 0xff)
+ src->refill = xml_refill_utf16_le;
+ if (!src->expected_encoding)
+ expected_encoding = (bom == 0xff) ? "UTF-16LE" : "UTF-16BE";
+ }
+ else if (strcasecmp(src->fb_encoding, "UTF-16BE"))
+ src->refill = xml_refill_utf16_be;
+ else if (strcasecmp(src->fb_encoding, "UTF-16LE"))
+ src->refill = xml_refill_utf16_le;
+ else
+ {
+ xml_error(ctx, "Unknown encoding '%s'", src->fb_encoding);
+ expected_encoding = NULL;
+ }
+ }
+ uns utf16 = src->refill == xml_refill_utf16_le || src->refill == xml_refill_utf16_be;
+ if (bom > 0 && xml_peek_char(ctx) == 0xfeff)
+ xml_skip_char(ctx);
+ else if (utf16)
+ xml_error(ctx, "Missing or corrupted BOM");
+
+ /* Look ahead for presence of XMLDecl or optional TextDecl */
+ if (!(ctx->flags & XML_FLAG_SRC_EOF) && ctx->bstop != src->buf + ARRAY_SIZE(src->buf))
+ xml_refill(ctx);
+ uns doc = ctx->flags & XML_FLAG_SRC_DOCUMENT;
+ u32 *bptr = ctx->bptr;
+ uns have_decl = (12 <= ctx->bstop - ctx->bptr && (bptr[11] & XML_CHAR_WHITE) &&
+ bptr[0] == '<' && bptr[2] == '?' && (bptr[4] & 0xdf) == 'X' && (bptr[6] & 0xdf) == 'M' && (bptr[8] & 0xdf) == 'L');
+ if (!have_decl)
+ {
+ if (doc)
+ xml_fatal(ctx, "Missing or corrupted XML header");
+ else if (expected_encoding && strcasecmp(src->expected_encoding, "UTF-8") && !utf16)
+ xml_error(ctx, "Missing or corrupted entity header");
+ goto exit;
+ }
+ ctx->bptr = bptr + 12;
+ xml_parse_white(ctx, 0);
+
+ /* Parse version string (mandatory in XMLDecl, optional in TextDecl) */
+ if (xml_peek_char(ctx) == 'v')
+ {
+ xml_parse_seq(ctx, "version");
+ xml_parse_eq(ctx);
+ char *version = xml_parse_pubid_literal(ctx);
+ TRACE(ctx, "version=%s", version);
+ uns v = 0;
+ if (!strcmp(version, "1.1"))
+ v = XML_FLAG_VERSION_1_1;
+ else if (strcmp(version, "1.0"))
+ {
+ xml_error(ctx, "Unknown XML version string '%s'", version);
+ version = "1.0";
+ }
+ if (doc)
+ {
+ ctx->version_str = version;
+ ctx->flags |= v;
+ }
+ else if (v > (ctx->flags & XML_FLAG_VERSION_1_1))
+ xml_error(ctx, "XML 1.1 external entity included from XML 1.0 document");
+ if (!xml_parse_white(ctx, !doc))
+ goto end;
+ }
+ else if (doc)
+ {
+ xml_error(ctx, "Expected XML version");
+ ctx->version_str = "1.0";
+ }
+
+ /* Parse encoding string (optional in XMLDecl, mandatory in TextDecl) */
+ if (xml_peek_char(ctx) == 'e')
+ {
+ xml_parse_seq(ctx, "encoding");
+ xml_parse_eq(ctx);
+ src->decl_encoding = xml_parse_encoding_name(ctx);
+ TRACE(ctx, "encoding=%s", src->decl_encoding);
+ if (!xml_parse_white(ctx, 0))
+ goto end;
+ }
+ else if (!doc)
+ xml_error(ctx, "Expected XML encoding");
+
+ /* Parse whether the document is standalone (optional in XMLDecl) */
+ if (doc && xml_peek_char(ctx) == 's')
+ {
+ xml_parse_seq(ctx, "standalone");
+ xml_parse_eq(ctx);
+ uns c = xml_parse_quote(ctx);
+ if (ctx->standalone = (xml_peek_char(ctx) == 'y'))
+ xml_parse_seq(ctx, "yes");
+ else
+ xml_parse_seq(ctx, "no");
+ xml_parse_char(ctx, c);
+ TRACE(ctx, "standalone=%d", ctx->standalone);
+ xml_parse_white(ctx, 0);
+ }
+end:
+ xml_parse_seq(ctx, "?>");
+
+ /* Switch to the final encoding */
+ if (src->decl_encoding)
+ {
+ int cs = find_charset_by_name(src->decl_encoding);
+ if (cs < 0 && !expected_encoding)
+ xml_error(ctx, "Unknown encoding '%s'", src->decl_encoding);
+ else if (!src->fb_encoding && cs >= 0 && cs != CONV_CHARSET_UTF8)
+ xml_init_charconv(ctx, cs);
+ else if (expected_encoding && strcasecmp(src->decl_encoding, expected_encoding) && (!utf16 ||
+ !(!strcasecmp(src->decl_encoding, "UTF-16") ||
+ (!strcasecmp(src->decl_encoding, "UTF-16BE") && strcasecmp(expected_encoding, "UTF-16LE")) ||
+ (!strcasecmp(src->decl_encoding, "UTF-16LE") && strcasecmp(expected_encoding, "UTF-16BE")))))
+ xml_error(ctx, "The header contains encoding '%s' instead of expected '%s'", src->decl_encoding, expected_encoding);
+ }
+
+exit:
+ /* Update valid Unicode ranges */
+ xml_init_cats(ctx, 0);
+}
+
+/*** Document Type Definition (DTD) ***/
+
+/* Notations */
+
+#define HASH_PREFIX(x) xml_dtd_notns_##x
+#define HASH_NODE struct xml_dtd_notn
+#define HASH_KEY_STRING name
+#define HASH_ZERO_FILL
+#define HASH_TABLE_DYNAMIC
+#define HASH_WANT_FIND
+#define HASH_WANT_LOOKUP
+#define HASH_GIVE_ALLOC
+#define HASH_TABLE_ALLOC
+XML_HASH_GIVE_ALLOC
+#include "lib/hashtable.h"
+
+/* General entities */
+
+#define HASH_PREFIX(x) xml_dtd_ents_##x
+#define HASH_NODE struct xml_dtd_ent
+#define HASH_KEY_STRING name
+#define HASH_ZERO_FILL
+#define HASH_TABLE_DYNAMIC
+#define HASH_WANT_FIND
+#define HASH_WANT_LOOKUP
+#define HASH_GIVE_ALLOC
+#define HASH_TABLE_ALLOC
+XML_HASH_GIVE_ALLOC
+#include "lib/hashtable.h"
+
+static struct xml_dtd_ent *
+xml_dtd_declare_trivial_gent(struct xml_context *ctx, char *name, char *text)
+{
+ struct xml_dtd *dtd = ctx->dtd;
+ struct xml_dtd_ent *ent = xml_dtd_ents_lookup(dtd->tab_gents, name);
+ if (ent->flags & XML_DTD_ENT_DECLARED)
+ {
+ xml_warn(ctx, "Entity &%s; already declared", name);
+ return NULL;
+ }
+ slist_add_tail(&dtd->gents, &ent->n);
+ ent->flags = XML_DTD_ENT_DECLARED | XML_DTD_ENT_TRIVIAL;
+ ent->text = text;
+ ent->len = strlen(text);
+ return ent;
+}
+
+static void
+xml_dtd_declare_default_gents(struct xml_context *ctx)
+{
+ xml_dtd_declare_trivial_gent(ctx, "lt", "<");
+ xml_dtd_declare_trivial_gent(ctx, "gt", ">");
+ xml_dtd_declare_trivial_gent(ctx, "amp", "&");
+ xml_dtd_declare_trivial_gent(ctx, "apos", "'");
+ xml_dtd_declare_trivial_gent(ctx, "quot", "\"");
+}
+
+static struct xml_dtd_ent *
+xml_dtd_find_gent(struct xml_context *ctx, char *name)
+{
+ struct xml_dtd *dtd = ctx->dtd;
+ if (dtd)
+ {
+ struct xml_dtd_ent *ent = xml_dtd_ents_find(dtd->tab_gents, name);
+ return !ent ? NULL : (ent->flags & XML_DTD_ENT_DECLARED) ? ent : NULL;
+ }
+ else
+ {
+#define ENT(n, t) ent_##n = { .name = #n, .text = t, .len = 1, .flags = XML_DTD_ENT_DECLARED | XML_DTD_ENT_TRIVIAL }
+ static struct xml_dtd_ent ENT(lt, "<"), ENT(gt, ">"), ENT(amp, "&"), ENT(apos, "'"), ENT(quot, "\"");
+#undef ENT
+ switch (name[0])
+ {
+ case 'l':
+ if (!strcmp(name, "lt"))
+ return &ent_lt;
+ break;
+ case 'g':
+ if (!strcmp(name, "gt"))
+ return &ent_gt;
+ break;
+ case 'a':
+ if (!strcmp(name, "amp"))
+ return &ent_amp;
+ if (!strcmp(name, "apos"))
+ return &ent_apos;
+ break;
+ case 'q':
+ if (!strcmp(name, "quot"))
+ return &ent_quot;
+ break;
+ }
+ return NULL;
+ }
+}
+
+/* Parameter entities */
+
+static struct xml_dtd_ent *
+xml_dtd_find_pent(struct xml_context *ctx, char *name)
+{
+ struct xml_dtd *dtd = ctx->dtd;
+ struct xml_dtd_ent *ent = xml_dtd_ents_find(dtd->tab_pents, name);
+ return !ent ? NULL : (ent->flags & XML_DTD_ENT_DECLARED) ? ent : NULL;
+}
+
+/* Elements */
+
+#define HASH_PREFIX(x) xml_dtd_elems_##x
+#define HASH_NODE struct xml_dtd_elem
+#define HASH_KEY_STRING name
+#define HASH_TABLE_DYNAMIC
+#define HASH_ZERO_FILL
+#define HASH_WANT_LOOKUP
+#define HASH_GIVE_ALLOC
+#define HASH_TABLE_ALLOC
+XML_HASH_GIVE_ALLOC
+#include "lib/hashtable.h"
+
+/* Element attributes */
+
+struct xml_dtd_attrs_table;
+
+static inline uns
+xml_dtd_attrs_hash(struct xml_dtd_attrs_table *tab UNUSED, struct xml_dtd_elem *elem, char *name)
+{
+ return hash_pointer(elem) ^ hash_string(name);
+}
+
+static inline int
+xml_dtd_attrs_eq(struct xml_dtd_attrs_table *tab UNUSED, struct xml_dtd_elem *elem1, char *name1, struct xml_dtd_elem *elem2, char *name2)
+{
+ return (elem1 == elem2) && !strcmp(name1, name2);
+}
+
+static inline void
+xml_dtd_attrs_init_key(struct xml_dtd_attrs_table *tab UNUSED, struct xml_dtd_attr *attr, struct xml_dtd_elem *elem, char *name)
+{
+ attr->elem = elem;
+ attr->name = name;
+}
+
+#define HASH_PREFIX(x) xml_dtd_attrs_##x
+#define HASH_NODE struct xml_dtd_attr
+#define HASH_ZERO_FILL
+#define HASH_TABLE_DYNAMIC
+#define HASH_KEY_COMPLEX(x) x elem, x name
+#define HASH_KEY_DECL struct xml_dtd_elem *elem, char *name
+#define HASH_GIVE_HASHFN
+#define HASH_GIVE_EQ
+#define HASH_GIVE_INIT_KEY
+#define HASH_WANT_FIND
+#define HASH_WANT_NEW
+#define HASH_GIVE_ALLOC
+#define HASH_TABLE_ALLOC
+XML_HASH_GIVE_ALLOC
+#include "lib/hashtable.h"
+
+/* Enumerated attribute values */
+
+struct xml_dtd_evals_table;
+
+static inline uns
+xml_dtd_evals_hash(struct xml_dtd_evals_table *tab UNUSED, struct xml_dtd_attr *attr, char *val)
+{
+ return hash_pointer(attr) ^ hash_string(val);
+}
+
+static inline int
+xml_dtd_evals_eq(struct xml_dtd_evals_table *tab UNUSED, struct xml_dtd_attr *attr1, char *val1, struct xml_dtd_attr *attr2, char *val2)
+{
+ return (attr1 == attr2) && !strcmp(val1, val2);
+}
+
+static inline void
+xml_dtd_evals_init_key(struct xml_dtd_evals_table *tab UNUSED, struct xml_dtd_eval *eval, struct xml_dtd_attr *attr, char *val)
+{
+ eval->attr = attr;
+ eval->val = val;
+}
+
+#define HASH_PREFIX(x) xml_dtd_evals_##x
+#define HASH_NODE struct xml_dtd_eval
+#define HASH_TABLE_DYNAMIC
+#define HASH_KEY_COMPLEX(x) x attr, x val
+#define HASH_KEY_DECL struct xml_dtd_attr *attr, char *val
+#define HASH_GIVE_HASHFN
+#define HASH_GIVE_EQ
+#define HASH_GIVE_INIT_KEY
+#define HASH_WANT_FIND
+#define HASH_WANT_NEW
+#define HASH_GIVE_ALLOC
+#define HASH_TABLE_ALLOC
+XML_HASH_GIVE_ALLOC
+#include "lib/hashtable.h"
+
+/* Enumerated attribute notations */
+
+struct xml_dtd_enotns_table;
+
+static inline uns
+xml_dtd_enotns_hash(struct xml_dtd_enotns_table *tab UNUSED, struct xml_dtd_attr *attr, struct xml_dtd_notn *notn)
+{
+ return hash_pointer(attr) ^ hash_pointer(notn);
+}
+
+static inline int
+xml_dtd_enotns_eq(struct xml_dtd_enotns_table *tab UNUSED, struct xml_dtd_attr *attr1, struct xml_dtd_notn *notn1, struct xml_dtd_attr *attr2, struct xml_dtd_notn *notn2)
+{
+ return (attr1 == attr2) && (notn1 == notn2);
+}
+
+static inline void
+xml_dtd_enotns_init_key(struct xml_dtd_enotns_table *tab UNUSED, struct xml_dtd_enotn *enotn, struct xml_dtd_attr *attr, struct xml_dtd_notn *notn)
+{
+ enotn->attr = attr;
+ enotn->notn = notn;
+}
+
+#define HASH_PREFIX(x) xml_dtd_enotns_##x
+#define HASH_NODE struct xml_dtd_enotn
+#define HASH_TABLE_DYNAMIC
+#define HASH_KEY_COMPLEX(x) x attr, x notn
+#define HASH_KEY_DECL struct xml_dtd_attr *attr, struct xml_dtd_notn *notn
+#define HASH_GIVE_HASHFN
+#define HASH_GIVE_EQ
+#define HASH_GIVE_INIT_KEY
+#define HASH_WANT_FIND
+#define HASH_WANT_NEW
+#define HASH_GIVE_ALLOC
+#define HASH_TABLE_ALLOC
+XML_HASH_GIVE_ALLOC
+#include "lib/hashtable.h"
+
+/* DTD initialization/cleanup */
+
+static void
+xml_dtd_init(struct xml_context *ctx)
+{
+ if (ctx->dtd)
+ return;
+ struct mempool *pool = mp_new(4096);
+ struct xml_dtd *dtd = ctx->dtd = mp_alloc_zero(pool, sizeof(*ctx->dtd));
+ dtd->pool = pool;
+ xml_dtd_ents_init(dtd->tab_gents = xml_hash_new(pool, sizeof(struct xml_dtd_ents_table)));
+ xml_dtd_ents_init(dtd->tab_pents = xml_hash_new(pool, sizeof(struct xml_dtd_ents_table)));
+ xml_dtd_notns_init(dtd->tab_notns = xml_hash_new(pool, sizeof(struct xml_dtd_notns_table)));
+ xml_dtd_elems_init(dtd->tab_elems = xml_hash_new(pool, sizeof(struct xml_dtd_elems_table)));
+ xml_dtd_attrs_init(dtd->tab_attrs = xml_hash_new(pool, sizeof(struct xml_dtd_attrs_table)));
+ xml_dtd_evals_init(dtd->tab_evals = xml_hash_new(pool, sizeof(struct xml_dtd_evals_table)));
+ xml_dtd_enotns_init(dtd->tab_enotns = xml_hash_new(pool, sizeof(struct xml_dtd_enotns_table)));
+ xml_dtd_declare_default_gents(ctx);
+}
+
+static void
+xml_dtd_cleanup(struct xml_context *ctx)
+{
+ if (!ctx->dtd)
+ return;
+ mp_delete(ctx->dtd->pool);
+ ctx->dtd = NULL;
+}
+
+static void
+xml_dtd_finish(struct xml_context *ctx)
+{
+ if (!ctx->dtd)
+ return;
+ // FIXME
+}
+
+/*** Parsing functions ***/
+
+/* Comments */
+
+static void
+xml_push_comment(struct xml_context *ctx)
+{
+ /* Parse a comment to ctx->value:
+ * Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
+ * Already parsed: '<!-' */
+ struct fastbuf *out = ctx->value;
+ uns c;
+ xml_parse_char(ctx, '-');
+ while (1)
+ {
+ if ((c = xml_get_char(ctx)) == '-')
+ if ((c = xml_get_char(ctx)) == '-')
+ break;
+ else
+ bputc(out, '-');
+ bput_utf8_32(out, c);
+ }
+ xml_parse_char(ctx, '>');
+ xml_dec(ctx);
+ fbgrow_rewind(out);
+ if (ctx->h_comment)
+ ctx->h_comment(ctx);
+}
+
+static void
+xml_pop_comment(struct xml_context *ctx)
+{
+ fbgrow_rewind(ctx->value);
+}
+
+static void
+xml_skip_comment(struct xml_context *ctx)
+{
+ xml_parse_char(ctx, '-');
+ while (xml_get_char(ctx) != '-' || xml_get_char(ctx) != '-');
+ xml_parse_char(ctx, '>');
+ xml_dec(ctx);
+}
+
+/* Processing instructions */
+
+static void
+xml_push_pi(struct xml_context *ctx)
+{
+ /* Parses a PI to ctx->value and ctx->name:
+ * PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char*)))? '?>'
+ * PITarget ::= Name - (('X' | 'x') ('M' | 'm') ('L' | 'l'))
+ * Already parsed: '<?' */
+
+ ctx->name = xml_parse_name(ctx);
+ if (unlikely(!strcasecmp(ctx->name, "xml")))
+ xml_fatal(ctx, "Reserved PI target");
+ struct fastbuf *out = ctx->value;
+ if (xml_parse_white(ctx, 0))
+ xml_parse_seq(ctx, "?>");
+ else
+ {
+ while (1)
+ {
+ uns c;
+ if ((c = xml_get_char(ctx)) == '?')
+ if (xml_get_char(ctx) == '>')
+ break;
+ else
+ {
+ xml_unget_char(ctx);
+ bputc(out, '?');
+ }
+ else
+ bput_utf8_32(out, c);
+ }
+ fbgrow_rewind(out);
+ }
+ xml_dec(ctx);
+ if (ctx->h_pi)
+ ctx->h_pi(ctx);
+}
+
+static void
+xml_pop_pi(struct xml_context *ctx)
+{
+ fbgrow_reset(ctx->value);
+}
+
+static void
+xml_skip_pi(struct xml_context *ctx)
+{
+ if (ctx->flags & XML_FLAG_VALIDATING)
+ {
+ mp_push(ctx->pool);
+ if (unlikely(!strcasecmp(xml_parse_name(ctx), "xml")))
+ xml_fatal(ctx, "Reserved PI target");
+ mp_pop(ctx->pool);
+ if (!xml_parse_white(ctx, 0))
+ {
+ xml_parse_seq(ctx, "?>");
+ xml_dec(ctx);
+ return;
+ }
+ }
+ while (1)
+ if (xml_get_char(ctx) == '?')
+ if (xml_get_char(ctx) == '>')
+ break;
+ else
+ xml_unget_char(ctx);
+ xml_dec(ctx);
+}
+
+/* Character references */
+
+static uns
+xml_parse_char_ref(struct xml_context *ctx)
+{
+ TRACE(ctx, "parse_char_ref");
+ /* CharRef ::= '&#' [0-9]+ ';' | '&#x' [0-9a-fA-F]+ ';'
+ * Already parsed: '&#' */
+ uns v = 0;
+ if (xml_get_char(ctx) == 'x')
+ {
+ if (!(xml_get_cat(ctx) & XML_CHAR_XDIGIT))
+ {
+ xml_error(ctx, "Expected a hexadecimal value of character reference");
+ goto recover;
+ }
+ do
+ {
+ v = (v << 4) + Cxvalue(xml_last_char(ctx));
+ }
+ while (v < 0x110000 && (xml_get_cat(ctx) & XML_CHAR_XDIGIT));
+ }
+ else
+ {
+ if (!(xml_last_cat(ctx) & XML_CHAR_DIGIT))
+ {
+ xml_error(ctx, "Expected a numeric value of character reference");
+ goto recover;
+ }
+ do
+ {
+ v = v * 10 + xml_last_char(ctx) - '0';
+ }
+ while (v < 0x110000 && (xml_get_cat(ctx) & XML_CHAR_DIGIT));
+ }
+ uns cat = xml_char_cat(v);
+ if (!(cat & XML_CHAR_UNRESTRICTED_1_1) && ((ctx->flags & XML_FLAG_VERSION_1_1) || !(cat & XML_CHAR_VALID_1_0)))
+ {
+ xml_error(ctx, "Character reference out of range");
+ goto recover;
+ }
+ if (xml_last_char(ctx) == ';')
+ {
+ xml_dec(ctx);
+ return v;
+ }
+ xml_error(ctx, "Expected ';'");
+recover:
+ while (xml_last_char(ctx) != ';')
+ xml_get_char(ctx);
+ xml_dec(ctx);
+ return UNI_REPLACEMENT;
+}
+
+/* References to general entities */
+
+static void
+xml_parse_ge_ref(struct xml_context *ctx, struct fastbuf *out)
+{
+ /* Reference ::= EntityRef | CharRef
+ * EntityRef ::= '&' Name ';'
+ * Already parsed: '&' */
+ if (xml_peek_char(ctx) == '#')
+ {
+ xml_skip_char(ctx);
+ uns c = xml_parse_char_ref(ctx);
+ bput_utf8_32(out, c);
+ }
+ else
+ {
+ struct mempool_state state;
+ mp_save(ctx->pool, &state);
+ char *name = xml_parse_name(ctx);
+ xml_parse_char(ctx, ';');
+ struct xml_dtd_ent *ent = xml_dtd_find_gent(ctx, name);
+ if (!ent)
+ {
+ xml_error(ctx, "Unknown entity &%s;", name);
+ bputc(out, '&');
+ bputs(out, name);
+ bputc(out, ';');
+ }
+ else if (ent->flags & XML_DTD_ENT_TRIVIAL)
+ {
+ TRACE(ctx, "Trivial entity &%s;", name);
+ bwrite(out, ent->text, ent->len);
+ }
+ else
+ {
+ TRACE(ctx, "Pushed entity &%s;", name);
+ mp_restore(ctx->pool, &state);
+ xml_dec(ctx);
+ xml_push_entity(ctx, ent);
+ return;
+ }
+ mp_restore(ctx->pool, &state);
+ xml_dec(ctx);
+ }
+}
+
+/* References to parameter entities */
+
+static void
+xml_parse_pe_ref(struct xml_context *ctx)
+{
+ /* PEReference ::= '%' Name ';'
+ * Already parsed: '%' */
+ struct mempool_state state;
+ mp_save(ctx->pool, &state);
+ char *name = xml_parse_name(ctx);
+ xml_parse_char(ctx, ';');
+ struct xml_dtd_ent *ent = xml_dtd_find_pent(ctx, name);
+ if (!ent)
+ xml_error(ctx, "Unknown entity %%%s;", name);
+ else
+ {
+ TRACE(ctx, "Pushed entity %%%s;", name);
+ mp_restore(ctx->pool, &state);
+ xml_dec(ctx);
+ xml_push_entity(ctx, ent);
+ return;
+ }
+ mp_restore(ctx->pool, &state);
+ xml_dec(ctx);
+}
+
+static void
+xml_parse_dtd_pe(struct xml_context *ctx)
+{
+ do
+ {
+ xml_skip_char(ctx);
+ xml_inc(ctx);
+ while (xml_peek_cat(ctx) & XML_CHAR_WHITE)
+ xml_skip_char(ctx);
+ xml_parse_pe_ref(ctx);
+ }
+ while (xml_peek_char(ctx) != '%');
+}
+
+static inline uns
+xml_parse_dtd_white(struct xml_context *ctx, uns mandatory)
+{
+ /* Whitespace or parameter entity */
+ uns cnt = 0;
+ while (xml_peek_cat(ctx) & XML_CHAR_WHITE)
+ {
+ xml_skip_char(ctx);
+ cnt = 1;
+ }
+ if (xml_peek_char(ctx) == '%')
+ {
+ xml_parse_dtd_pe(ctx);
+ return 1;
+ }
+ else if (unlikely(mandatory && !cnt))
+ xml_fatal_expected_white(ctx);
+ return cnt;
+}
+
+static inline uns
+xml_check_dtd_pe(struct xml_context *ctx)
+{
+ if (xml_peek_char(ctx) == '%')
+ {
+ xml_parse_dtd_pe(ctx);
+ return 1;
+ }
+ return 0;
+}
+
+/* External ID */
+
+static void
+xml_parse_external_id(struct xml_context *ctx, struct xml_ext_id *eid, uns allow_public, uns dtd)
+{
+ bzero(eid, sizeof(*eid));
+ if (dtd)
+ xml_check_dtd_pe(ctx);
+ uns c = xml_peek_char(ctx);
+ if (c == 'S')
+ {
+ xml_parse_seq(ctx, "SYSTEM");
+ if (dtd)
+ xml_parse_dtd_white(ctx, 1);
+ else
+ xml_parse_white(ctx, 1);
+ eid->system_id = xml_parse_system_literal(ctx);
+ }
+ else if (c == 'P')
+ {
+ xml_parse_seq(ctx, "PUBLIC");
+ if (dtd)
+ xml_parse_dtd_white(ctx, 1);
+ else
+ xml_parse_white(ctx, 1);
+ eid->public_id = xml_parse_pubid_literal(ctx);
+ if (dtd ? xml_parse_dtd_white(ctx, 0) : xml_parse_white(ctx, 0))
+ if ((c = xml_peek_char(ctx)) == '\'' || c == '"' || !allow_public)
+ eid->system_id = xml_parse_system_literal(ctx);
+ }
+ else
+ xml_fatal(ctx, "Expected an external ID");
+}
+
+/* DTD: Notation declaration */
+
+static void
+xml_parse_notation_decl(struct xml_context *ctx)
+{
+ /* NotationDecl ::= '<!NOTATION' S Name S (ExternalID | PublicID) S? '>'
+ * Already parsed: '<!NOTATION' */
+ TRACE(ctx, "parse_notation_decl");
+ struct xml_dtd *dtd = ctx->dtd;
+ xml_parse_dtd_white(ctx, 1);
+
+ struct xml_dtd_notn *notn = xml_dtd_notns_lookup(dtd->tab_notns, xml_parse_name(ctx));
+ xml_parse_dtd_white(ctx, 1);
+ struct xml_ext_id eid;
+ xml_parse_external_id(ctx, &eid, 1, 1);
+ xml_parse_dtd_white(ctx, 0);
+ xml_parse_char(ctx, '>');
+
+ if (notn->flags & XML_DTD_NOTN_DECLARED)
+ xml_warn(ctx, "Notation %s already declared", notn->name);
+ else
+ {
+ notn->flags = XML_DTD_NOTN_DECLARED;
+ notn->eid = eid;
+ slist_add_tail(&dtd->notns, ¬n->n);
+ }
+ xml_dec(ctx);
+}
+
+static void
+xml_parse_entity_decl(struct xml_context *ctx)
+{
+ /* Already parsed: '<!ENTITY' */
+ TRACE(ctx, "parse_entity_decl");
+ struct xml_dtd *dtd = ctx->dtd;
+ xml_parse_dtd_white(ctx, 1);
+
+ uns flags = (xml_get_char(ctx) == '%') ? XML_DTD_ENT_PARAMETER : 0;
+ if (flags)
+ xml_parse_dtd_white(ctx, 1);
+ else
+ xml_unget_char(ctx);
+
+ struct xml_dtd_ent *ent = xml_dtd_ents_lookup(flags ? dtd->tab_pents : dtd->tab_gents, xml_parse_name(ctx));
+ slist *list = flags ? &dtd->pents : &dtd->gents;
+ xml_parse_white(ctx, 1);
+ if (ent->flags & XML_DTD_ENT_DECLARED)
+ {
+ xml_fatal(ctx, "Entity &%s; already declared, skipping not implemented", ent->name);
+ // FIXME: should be only warning
+ }
+
+ uns c, sep = xml_get_char(ctx);
+ if (sep == '\'' || sep == '"')
+ {
+ /* Internal entity:
+ * EntityValue ::= '"' ([^%&"] | PEReference | Reference)* '"' | "'" ([^%&'] | PEReference | Reference)* "'" */
+ struct fastbuf *out = ctx->value;
+ while (1)
+ {
+ if ((c = xml_get_char(ctx)) == sep)
+ break;
+ else if (c == '%')
+ {
+ // FIXME
+ ASSERT(0);
+ //xml_parse_parameter_ref(ctx);
+ }
+ else if (c != '&')
+ bput_utf8_32(out, c);
+ else if ((c = xml_get_char(ctx)) == '#')
+ c = xml_parse_char_ref(ctx);
+ else
+ {
+ /* Bypass references to general entities */
+ mp_push(ctx->pool);
+ bputc(out, '&');
+ xml_unget_char(ctx);
+ bputs(out, xml_parse_name(ctx));
+ xml_parse_char(ctx, ';');
+ bputc(out, ';');
+ mp_pop(ctx->pool);
+ }
+ }
+ bputc(out, 0);
+ fbgrow_rewind(out);
+ slist_add_tail(list, &ent->n);
+ ent->flags = flags | XML_DTD_ENT_DECLARED;
+ ent->len = out->bstop - out->bptr - 1;
+ ent->text = mp_memdup(ctx->pool, out->bptr, ent->len + 1);
+ fbgrow_reset(out);
+ }
+ else
+ {
+ /* External entity */
+ struct xml_ext_id eid;
+ struct xml_dtd_notn *notn = NULL;
+ xml_parse_external_id(ctx, &eid, 0, 0);
+ if (!xml_parse_white(ctx, 0) || !flags)
+ xml_parse_char(ctx, '>');
+ else if (xml_get_char(ctx) != '>')
+ {
+ /* General external unparsed entity */
+ flags |= XML_DTD_ENT_UNPARSED;
+ xml_parse_seq(ctx, "NDATA");
+ xml_parse_white(ctx, 1);
+ notn = xml_dtd_notns_lookup(dtd->tab_notns, xml_parse_name(ctx));
+ }
+ slist_add_tail(list, &ent->n);
+ ent->flags = flags | XML_DTD_ENT_DECLARED | XML_DTD_ENT_EXTERNAL;
+ ent->eid = eid;
+ ent->notn = notn;
+ }
+ xml_parse_dtd_white(ctx, 0);
+ xml_parse_char(ctx, '>');
+ xml_dec(ctx);
+}
+
+/* DTD: Internal subset */
+
+static void
+xml_parse_internal_subset(struct xml_context *ctx)
+{
+ // FIXME: comments/pi have no parent
+ /* '[' intSubset ']'
+ * intSubset :== (markupdecl | DeclSep)
+ * Already parsed: ']' */
+ while (1)
+ {
+ xml_parse_white(ctx, 0);
+ uns c = xml_get_char(ctx);
+ xml_inc(ctx);
+ if (c == '<')
+ if ((c = xml_get_char(ctx)) == '!')
+ switch (c = xml_get_char(ctx))
+ {
+ case '-':
+ xml_push_comment(ctx);
+ xml_pop_comment(ctx);
+ break;
+ case 'N':
+ xml_parse_seq(ctx, "OTATION");
+ xml_parse_notation_decl(ctx);
+ break;
+ case 'E':
+ if ((c = xml_get_char(ctx)) == 'N')
+ {
+ xml_parse_seq(ctx, "TITY");
+ xml_parse_entity_decl(ctx);
+ }
+ else if (c == 'L')
+ {
+ xml_parse_seq(ctx, "EMENT");
+ // FIXME: Element
+ }
+ else
+ goto invalid_markup;
+ break;
+ case 'A':
+ xml_parse_seq(ctx, "TTLIST");
+ // FIXME: AttList
+ break;
+ default:
+ goto invalid_markup;
+ }
+ else if (c == '?')
+ {
+ xml_push_pi(ctx);
+ xml_pop_pi(ctx);
+ }
+ else
+ goto invalid_markup;
+ else if (c == '%')
+ xml_parse_dtd_pe(ctx);
+ else if (c == ']')
+ break;
+ else
+ goto invalid_markup;
+ }
+ xml_dec(ctx);
+ xml_dec(ctx);
+ return;
+invalid_markup:
+ xml_fatal(ctx, "Invalid markup in the internal subset");
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+static void
+xml_parse_cdata(struct xml_context *ctx)
+{
+ struct fastbuf *out = ctx->chars;
+ xml_parse_seq(ctx, "CDATA[");
+ while (1)
+ {
+ uns c;
+ if ((c = xml_get_char(ctx)) == ']')
+ {
+ if ((c = xml_get_char(ctx)) == ']')
+ if ((c = xml_get_char(ctx)) == '>')
+ break;
+ else
+ bputc(out, ']');
+ bputc(out, ']');
+ }
+ bput_utf8_32(out, c);
+ }
+}
+
+static void
+xml_skip_cdata(struct xml_context *ctx)
+{
+ xml_parse_cdata(ctx);
+}
+
+static void
+xml_parse_chars(struct xml_context *ctx)
+{
+ TRACE(ctx, "parse_chars");
+ struct fastbuf *out = ctx->chars;
+ uns c;
+ while ((c = xml_get_char(ctx)) != '<')
+ if (c == '&')
+ {
+ xml_inc(ctx);
+ xml_parse_ge_ref(ctx, out);
+ }
+ else
+ bput_utf8_32(out, c);
+ xml_unget_char(ctx);
+}
+
+/*----------------------------------------------*/
+
+struct xml_attrs_table;
+
+static inline uns
+xml_attrs_hash(struct xml_attrs_table *t UNUSED, struct xml_elem *e, char *n)
+{
+ return hash_pointer(e) ^ hash_string(n);
+}
+
+static inline int
+xml_attrs_eq(struct xml_attrs_table *t UNUSED, struct xml_elem *e1, char *n1, struct xml_elem *e2, char *n2)
+{
+ return (e1 == e2) && !strcmp(n1, n2);
+}
+
+static inline void
+xml_attrs_init_key(struct xml_attrs_table *t UNUSED, struct xml_attr *a, struct xml_elem *e, char *name)
+{
+ a->elem = e;
+ a->name = name;
+ a->val = NULL;
+ slist_add_tail(&e->attrs, &a->n);
+}
+
+#define HASH_PREFIX(x) xml_attrs_##x
+#define HASH_NODE struct xml_attr
+#define HASH_KEY_COMPLEX(x) x elem, x name
+#define HASH_KEY_DECL struct xml_elem *elem, char *name
+#define HASH_TABLE_DYNAMIC
+#define HASH_GIVE_EQ
+#define HASH_GIVE_HASHFN
+#define HASH_GIVE_INIT_KEY
+#define HASH_WANT_CLEANUP
+#define HASH_WANT_REMOVE
+#define HASH_WANT_LOOKUP
+#define HASH_WANT_FIND
+#define HASH_GIVE_ALLOC
+XML_HASH_GIVE_ALLOC
+#include "lib/hashtable.h"
+
+void
+xml_init(struct xml_context *ctx)
+{
+ bzero(ctx, sizeof(*ctx));
+ ctx->pool = mp_new(65536);
+ ctx->chars = fbgrow_create(4096);
+ ctx->value = fbgrow_create(4096);
+ xml_dtd_init(ctx);
+ xml_attrs_init(ctx->tab_attrs = xml_hash_new(ctx->pool, sizeof(struct xml_attrs_table)));
+}
+
+void
+xml_cleanup(struct xml_context *ctx)
+{
+ xml_attrs_cleanup(ctx->tab_attrs);
+ xml_dtd_cleanup(ctx);
+ bclose(ctx->value);
+ bclose(ctx->chars);
+ mp_delete(ctx->pool);
+}
+
+static void
+xml_parse_attr(struct xml_context *ctx)
+{
+ // FIXME: memory management, dtd, literal
+ TRACE(ctx, "parse_attr");
+ struct xml_elem *e = ctx->elem;
+ char *name = xml_parse_name(ctx);
+ struct xml_attr *a = xml_attrs_lookup(ctx->tab_attrs, e, name);
+ xml_parse_eq(ctx);
+ char *val =xml_parse_system_literal(ctx);
+ if (a->val)
+ xml_error(ctx, "Attribute is not unique");
+ else
+ a->val = val;
+}
+
+static void
+xml_parse_stag(struct xml_context *ctx)
+{
+ // FIXME: dtd
+ TRACE(ctx, "parse_stag");
+ xml_push(ctx);
+ struct xml_elem *e = mp_alloc_zero(ctx->pool, sizeof(*e));
+ struct xml_elem *parent = ctx->elem;
+ clist_init(&e->sons);
+ e->node.parent = (void *)parent;
+ ctx->elem = e;
+ e->name = xml_parse_name(ctx);
+ if (parent)
+ clist_add_tail(&parent->sons, &e->node.n);
+ else
+ {
+ ctx->root = e;
+ if (ctx->document_type && strcmp(e->name, ctx->document_type))
+ xml_error(ctx, "The root element does not match the document type");
+ }
+ while (1)
+ {
+ uns white = xml_parse_white(ctx, 0);
+ uns c = xml_get_char(ctx);
+ if (c == '/')
+ {
+ xml_parse_char(ctx, '>');
+ ctx->flags |= XML_FLAG_EMPTY_ELEM;
+ break;
+ }
+ else if (c == '>')
+ break;
+ else if (!white)
+ xml_fatal_expected_white(ctx);
+ xml_unget_char(ctx);
+ xml_parse_attr(ctx);
+ }
+ if (ctx->h_element_start)
+ ctx->h_element_start(ctx);
+}
+
+static void
+xml_parse_etag(struct xml_context *ctx)
+{
+ TRACE(ctx, "parse_etag");
+ struct xml_elem *e = ctx->elem;
+ ASSERT(e);
+ char *name = xml_parse_name(ctx);
+ if (strcmp(name, e->name))
+ xml_fatal(ctx, "Invalid ETag, expected '%s'", e->name);
+ xml_parse_white(ctx, 0);
+ xml_parse_char(ctx, '>');
+ xml_dec(ctx);
+}
+
+static void
+xml_pop_element(struct xml_context *ctx)
+{
+ TRACE(ctx, "pop_element");
+ if (ctx->h_element_end)
+ ctx->h_element_end(ctx);
+ struct xml_elem *e = ctx->elem;
+ if (ctx->flags & XML_DOM_FREE)
+ {
+ if (e->node.parent)
+ clist_remove(&e->node.n);
+ else
+ ctx->root = NULL;
+ SLIST_FOR_EACH(struct xml_attr *, a, e->attrs)
+ xml_attrs_remove(ctx->tab_attrs, a);
+ struct xml_node *n;
+ while (n = clist_head(&e->sons))
+ {
+ if (n->type == XML_NODE_ELEM)
+ {
+ SLIST_FOR_EACH(struct xml_attr *, a, ((struct xml_elem *)n)->attrs)
+ xml_attrs_remove(ctx->tab_attrs, a);
+ clist_insert_list_after(&((struct xml_elem *)n)->sons, &n->n);
+ }
+ clist_remove(&n->n);
+ }
+ }
+ ctx->node = e->node.parent;
+ xml_pop(ctx); // FIXME: memory management without XML_DOM_FREE
+ xml_dec(ctx);
+#if 0
+ for (struct xml_attribute *a = e->attrs; a; a = a->next)
+ xml_attribute_remove(ctx->attribute_table, a);
+#endif
+}
+
+static void
+xml_parse_element_decl(struct xml_context *ctx)
+{
+ // FIXME
+ mp_push(ctx->pool);
+ xml_parse_seq(ctx, "<!ELEMENT");
+ xml_parse_white(ctx, 1);
+ xml_parse_name(ctx);
+ xml_parse_white(ctx, 1);
+
+ uns c = xml_get_char(ctx);
+ if (c == 'E')
+ {
+ xml_parse_seq(ctx, "MPTY");
+ // FIXME
+ }
+ else if (c == 'A')
+ {
+ xml_parse_seq(ctx, "NY");
+ // FIXME
+ }
+ else if (c == '(')
+ {
+ xml_parse_white(ctx, 0);
+ if (xml_get_char(ctx) == '#')
+ {
+ xml_parse_seq(ctx, "PCDATA");
+ while (1)
+ {
+ xml_parse_white(ctx, 0);
+ if ((c = xml_get_char(ctx)) == ')')
+ break;
+ else if (c != '|')
+ xml_fatal_expected(ctx, ')');
+ xml_parse_white(ctx, 0);
+ xml_parse_name(ctx);
+ // FIXME
+ }
+ }
+ else
+ {
+ xml_unget_char(ctx);
+ uns depth = 1;
+ while (1)
+ {
+ xml_parse_white(ctx, 0);
+ if ((c = xml_get_char(ctx)) == '(')
+ {
+ depth++;
+ }
+ else if (c == ')')
+ {
+ if ((c = xml_get_char(ctx)) == '?' || c == '*' || c == '+')
+ {
+ }
+ else
+ xml_unget_char(ctx);
+ if (!--depth)
+ break;
+ }
+ else if (c == '|')
+ {
+ }
+ else if (c == ',')
+ {
+ }
+ else
+ {
+ xml_unget_char(ctx);
+ xml_parse_name(ctx);
+ }
+ }
+ }
+ }
+ else
+ xml_fatal(ctx, "Expected element content specification");
+
+ xml_parse_white(ctx, 0);
+ xml_parse_char(ctx, '>');
+ mp_pop(ctx->pool);
+}
+
+#if 0
+static void
+xml_parse_attr_list_decl(struct xml_context *ctx)
+{
+ /* AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>'
+ * AttDef ::= S Name S AttType S DefaultDecl */
+ xml_parse_seq(ctx, "ATTLIST");
+ xml_parse_white(ctx, 1);
+ struct xml_dtd_elem *e = xml_dtd_elems_lookup(ctx->dtd->tab_elems, xml_parse_name(ctx));
+ e->attlist_declared = 1;
+
+ while (xml_parse_white(ctx, 0) && xml_get_char(ctx) != '>')
+ {
+ xml_unget_char(ctx);
+ char *name = xml_parse_name(ctx);
+ struct xml_dtd_attr *a = xml_dtd_attrs_find(ctx->dtd->tab_attrs, e, name);
+ uns ignored = 0;
+ if (a)
+ {
+ xml_warn(ctx, "Duplicate attribute definition");
+ ignored++;
+ }
+ else
+ a = xml_dtd_attrs_new(ctx->dtd->tab_attrs, e, name);
+ xml_parse_white(ctx, 1);
+ if (xml_get_char(ctx) == '(')
+ {
+ if (!ignored)
+ a->type = XML_ATTR_ENUM;
+ do
+ {
+ xml_parse_white(ctx, 0);
+ char *value = xml_parse_nmtoken(ctx);
+ if (!ignored)
+ if (xml_dtd_evals_find(ctx->dtd->tab_evals, a, value))
+ xml_error(ctx, "Duplicate enumeration value");
+ else
+ xml_dtd_evals_new(ctx->dtd->tab_evals, a, value);
+ xml_parse_white(ctx, 0);
+ }
+ while (xml_get_char(ctx) == '|');
+ xml_unget_char(ctx);
+ xml_parse_char(ctx, ')');
+ }
+ else
+ {
+ xml_unget_char(ctx);
+ char *type = xml_parse_name(ctx);
+ enum xml_dtd_attribute_type t;
+ if (!strcmp(type, "CDATA"))
+ t = XML_ATTR_CDATA;
+ else if (!strcmp(type, "ID"))
+ t = XML_ATTR_ID;
+ else if (!strcmp(type, "IDREF"))
+ t = XML_ATTR_IDREF;
+ else if (!strcmp(type, "IDREFS"))
+ t = XML_ATTR_IDREFS;
+ else if (!strcmp(type, "ENTITY"))
+ t = XML_ATTR_ENTITY;
+ else if (!strcmp(type, "ENTITIES"))
+ t = XML_ATTR_ENTITIES;
+ else if (!strcmp(type, "NMTOKEN"))
+ t = XML_ATTR_NMTOKEN;
+ else if (!strcmp(type, "NMTOKENS"))
+ t = XML_ATTR_NMTOKENS;
+ else if (!strcmp(type, "NOTATION"))
+ {
+ t = XML_ATTR_NOTATION;
+ xml_parse_white(ctx, 1);
+ xml_parse_char(ctx, '(');
+ do
+ {
+ xml_parse_white(ctx, 0);
+ struct xml_dtd_notn *n = xml_dtd_notns_lookup(ctx->dtd->tab_notns, xml_parse_name(ctx));
+ if (!ignored)
+ if (xml_dtd_enotns_find(ctx->dtd->tab_enotns, a, n))
+ xml_error(ctx, "Duplicate enumerated notation");
+ else
+ xml_dtd_enotns_new(ctx->dtd->tab_enotns, a, n);
+ xml_parse_white(ctx, 0);
+ }
+ while (xml_get_char(ctx) == '|');
+ xml_unget_char(ctx);
+ xml_parse_char(ctx, ')');
+ }
+ else
+ xml_fatal(ctx, "Unknown attribute type");
+ if (!ignored)
+ a->type = t;
+ }
+ xml_parse_white(ctx, 1);
+ enum xml_dtd_attribute_default def = XML_ATTR_NONE;
+ if (xml_get_char(ctx) == '#')
+ switch (xml_get_char(ctx))
+ {
+ case 'R':
+ xml_parse_seq(ctx, "EQUIRED");
+ def = XML_ATTR_REQUIRED;
+ break;
+ case 'I':
+ xml_parse_seq(ctx, "MPLIED");
+ def = XML_ATTR_IMPLIED;
+ break;
+ case 'F':
+ xml_parse_seq(ctx, "IXED");
+ def = XML_ATTR_FIXED;
+ break;
+ default:
+ xml_fatal(ctx, "Expected a modifier for default attribute value");
+ }
+ else
+ xml_unget_char(ctx);
+ if (def != XML_ATTR_REQUIRED && def != XML_ATTR_IMPLIED)
+ {
+ xml_parse_system_literal(ctx);
+ // FIXME
+ }
+ }
+}
+#endif
+
+static void
+xml_parse_doctype_decl(struct xml_context *ctx)
+{
+ if (ctx->document_type)
+ xml_fatal(ctx, "Multiple document types not allowed");
+ xml_parse_seq(ctx, "DOCTYPE");
+ xml_parse_white(ctx, 1);
+ ctx->document_type = xml_parse_name(ctx);
+ TRACE(ctx, "doctyype=%s", ctx->document_type);
+ uns white = xml_parse_white(ctx, 0);
+ uns c = xml_peek_char(ctx);
+ if (c != '>' && c != '[' && white)
+ {
+ xml_parse_external_id(ctx, &ctx->eid, 0, 0);
+ xml_parse_white(ctx, 0);
+ ctx->flags |= XML_FLAG_HAS_EXTERNAL_SUBSET;
+ }
+ if (xml_peek_char(ctx) == '[')
+ ctx->flags |= XML_FLAG_HAS_INTERNAL_SUBSET;
+ if (ctx->h_doctype_decl)
+ ctx->h_doctype_decl(ctx);
+}
+
+int
+xml_next(struct xml_context *ctx)
+{
+ /* A nasty state machine */
+
+ TRACE(ctx, "xml_next (state=%u)", ctx->state);
+ jmp_buf throw_buf;
+ ctx->throw_buf = &throw_buf;
+ if (setjmp(throw_buf))
+ {
+error:
+ if (ctx->err_code == XML_ERR_EOF && ctx->h_fatal)
+ ctx->h_fatal(ctx);
+ ctx->state = XML_STATE_FATAL;
+ TRACE(ctx, "raised fatal error");
+ return -1;
+ }
+ uns c;
+ switch (ctx->state)
+ {
+ case XML_STATE_FATAL:
+ return -1;
+
+ case XML_STATE_START:
+ TRACE(ctx, "entering prolog");
+ if (ctx->h_document_start)
+ ctx->h_document_start(ctx);
+ /* XMLDecl */
+ xml_refill(ctx);
+ if (ctx->h_xml_decl)
+ ctx->h_xml_decl(ctx);
+ if (ctx->want & XML_WANT_DECL)
+ return ctx->state = XML_STATE_DECL;
+ case XML_STATE_DECL:
+
+ /* Misc* (doctypedecl Misc*)? */
+ while (1)
+ {
+ xml_parse_white(ctx, 0);
+ xml_parse_char(ctx, '<');
+ if ((c = xml_get_char(ctx)) == '?')
+ /* Processing intruction */
+ if (!(ctx->want & XML_WANT_PI))
+ xml_skip_pi(ctx);
+ else
+ {
+ xml_push_pi(ctx);
+ ctx->state = XML_STATE_PROLOG_PI;
+ return XML_STATE_PI;
+ case XML_STATE_PROLOG_PI:
+ xml_pop_pi(ctx);
+ }
+ else if (c != '!')
+ {
+ /* Found the root tag */
+ xml_unget_char(ctx);
+ goto first_tag;
+ }
+ else if (xml_get_char(ctx) == '-')
+ if (!(ctx->want & XML_WANT_COMMENT))
+ xml_skip_comment(ctx);
+ else
+ {
+ xml_push_comment(ctx);
+ ctx->state = XML_STATE_PROLOG_COMMENT;
+ return XML_STATE_COMMENT;
+ case XML_STATE_PROLOG_COMMENT:
+ xml_pop_comment(ctx);
+ }
+ else
+ {
+ /* DocTypeDecl */
+ xml_unget_char(ctx);
+ xml_parse_doctype_decl(ctx);
+ if (ctx->want & XML_WANT_DOCUMENT_TYPE)
+ return ctx->state = XML_STATE_DOCUMENT_TYPE;
+ case XML_STATE_DOCUMENT_TYPE:
+ if (xml_peek_char(ctx) == '[')
+ {
+ xml_skip_char(ctx);
+ xml_inc(ctx);
+ xml_parse_internal_subset(ctx);
+ xml_parse_white(ctx, 0);
+ }
+ xml_parse_char(ctx, '>');
+ }
+ }
+
+ case XML_STATE_PI:
+ mp_pop(ctx->pool);
+ case XML_STATE_COMMENT:
+ fbgrow_reset(ctx->value);
+
+ case XML_STATE_CHARS:
+
+ while (1)
+ {
+ if (xml_peek_char(ctx) != '<')
+ {
+ /* CharData */
+ xml_parse_chars(ctx);
+ continue;
+ }
+ else
+ xml_skip_char(ctx);
+first_tag: ;
+
+ xml_inc(ctx);
+ if ((c = xml_get_char(ctx)) == '?')
+ {
+ /* PI */
+ if (!(ctx->want & XML_WANT_PI))
+ xml_skip_pi(ctx);
+ else
+ {
+ if (btell(ctx->chars))
+ {
+ fbgrow_rewind(ctx->chars);
+ ctx->state = XML_STATE_CHARS_BEFORE_PI;
+ return XML_STATE_PI;
+ case XML_STATE_CHARS_BEFORE_PI:
+ fbgrow_reset(ctx->chars);
+ }
+ xml_push_pi(ctx);
+ return ctx->state = XML_STATE_PI;
+ }
+ }
+
+ else if (c == '!')
+ if ((c = xml_get_char(ctx)) == '-')
+ {
+ /* Comment */
+ if (!(ctx->want & XML_WANT_COMMENT))
+ xml_skip_comment(ctx);
+ else
+ {
+ if (btell(ctx->chars))
+ {
+ fbgrow_rewind(ctx->chars);
+ ctx->state = XML_STATE_CHARS_BEFORE_COMMENT;
+ return XML_STATE_CHARS;
+ case XML_STATE_CHARS_BEFORE_COMMENT:
+ fbgrow_reset(ctx->chars);
+ }
+ xml_push_comment(ctx);
+ return ctx->state = XML_STATE_COMMENT;
+ }
+ }
+ else if (c == '[')
+ {
+ /* CDATA */
+ if (!(ctx->want & XML_WANT_CDATA))
+ xml_skip_cdata(ctx);
+ else
+ {
+ if (btell(ctx->chars))
+ {
+ fbgrow_rewind(ctx->chars);
+ ctx->state = XML_STATE_CHARS_BEFORE_CDATA;
+ return XML_STATE_CHARS;
+ case XML_STATE_CHARS_BEFORE_CDATA:
+ fbgrow_reset(ctx->chars);
+ }
+ xml_parse_cdata(ctx);
+ if (btell(ctx->chars))
+ {
+ fbgrow_rewind(ctx->chars);
+ return ctx->state = XML_STATE_CDATA;
+ }
+ case XML_STATE_CDATA:
+ fbgrow_reset(ctx->chars);
+ }
+ }
+ else
+ xml_fatal(ctx, "Unexpected character after '<!'");
+
+ else if (c != '/')
+ {
+ /* STag | EmptyElemTag */
+ xml_unget_char(ctx);
+ if (btell(ctx->chars))
+ {
+ fbgrow_rewind(ctx->chars);
+ ctx->state = XML_STATE_CHARS_BEFORE_STAG;
+ return XML_STATE_CHARS;
+ case XML_STATE_CHARS_BEFORE_STAG:
+ fbgrow_reset(ctx->chars);
+ }
+
+ xml_parse_stag(ctx);
+ if (ctx->want & XML_WANT_STAG)
+ return ctx->state = XML_STATE_STAG;
+ case XML_STATE_STAG:
+ if (ctx->flags & XML_FLAG_EMPTY_ELEM)
+ goto pop_element;
+ }
+
+ else
+ {
+ /* ETag */
+ if (btell(ctx->chars))
+ {
+ fbgrow_rewind(ctx->chars);
+ ctx->state = XML_STATE_CHARS_BEFORE_ETAG;
+ return XML_STATE_CHARS;
+ case XML_STATE_CHARS_BEFORE_ETAG:
+ fbgrow_reset(ctx->chars);
+ }
+
+ xml_parse_etag(ctx);
+pop_element:
+ if (ctx->want & XML_WANT_ETAG)
+ return ctx->state = XML_STATE_ETAG;
+ case XML_STATE_ETAG:
+ xml_pop_element(ctx);
+ if (!ctx->elem)
+ goto epilog;
+ }
+ }
+
+epilog:
+ /* Misc* */
+ TRACE(ctx, "entering epilog");
+ while (1)
+ {
+ /* Epilog whitespace is the only place, where a valid document can reach EOF */
+ if (setjmp(throw_buf))
+ if (ctx->err_code == XML_ERR_EOF)
+ {
+ TRACE(ctx, "reached EOF");
+ ctx->state = XML_STATE_EOF;
+ if (ctx->h_document_end)
+ ctx->h_document_end(ctx);
+ case XML_STATE_EOF:
+ return XML_STATE_EOF;
+ }
+ else
+ goto error;
+ xml_parse_white(ctx, 0);
+ if (setjmp(throw_buf))
+ goto error;
+
+ /* Misc */
+ xml_parse_char(ctx, '<');
+ if ((c = xml_get_char(ctx)) == '?')
+ /* Processing instruction */
+ if (!(ctx->want & XML_WANT_PI))
+ xml_skip_pi(ctx);
+ else
+ {
+ xml_push_pi(ctx);
+ return ctx->state = XML_STATE_EPILOG_PI, XML_STATE_PI;
+ case XML_STATE_EPILOG_PI:
+ xml_pop_pi(ctx);
+ }
+ else if (c == '!')
+ /* Comment */
+ if (!(ctx->want & XML_WANT_COMMENT))
+ xml_skip_comment(ctx);
+ else
+ {
+ xml_push_comment(ctx);
+ return ctx->state = XML_STATE_EPILOG_COMMENT, XML_STATE_COMMENT;
+ case XML_STATE_EPILOG_COMMENT:
+ xml_pop_comment(ctx);
+ }
+ else
+ xml_fatal(ctx, "Syntax error in the epilog");
+ }
+
+ }
+ return -1;
+}
+
+#ifdef TEST
+
+static void
+error(struct xml_context *ctx)
+{
+ msg((ctx->err_code < XML_ERR_ERROR) ? L_WARN_R : L_ERROR_R, "XML %u: %s", xml_row(ctx), ctx->err_msg);
+}
+
+static void
+test(struct fastbuf *in, struct fastbuf *out)
+{
+ struct xml_context ctx;
+ xml_init(&ctx);
+ ctx.h_warn = ctx.h_error = ctx.h_fatal = error;
+ ctx.want = XML_WANT_ALL;
+ ctx.flags |= XML_DOM_FREE;
+ xml_set_source(&ctx, in);
+ int state;
+ while ((state = xml_next(&ctx)) >= 0)
+ switch (state)
+ {
+ case XML_STATE_CHARS:
+ bprintf(out, "CHARS [%.*s]\n", (int)(ctx.chars->bstop - ctx.chars->buffer), ctx.chars->buffer);
+ break;
+ case XML_STATE_STAG:
+ bprintf(out, "STAG <%s>\n", ctx.elem->name);
+ SLIST_FOR_EACH(struct xml_attr *, a, ctx.elem->attrs)
+ bprintf(out, " ATTR %s=[%s]\n", a->name, a->val);
+ break;
+ case XML_STATE_ETAG:
+ bprintf(out, "ETAG </%s>\n", ctx.elem->name);
+ break;
+ case XML_STATE_COMMENT:
+ bprintf(out, "COMMENT [%.*s]\n", (int)(ctx.value->bstop - ctx.value->buffer), ctx.value->buffer);
+ break;
+ case XML_STATE_PI:
+ bprintf(out, "PI [%s] [%.*s]\n", ctx.name, (int)(ctx.value->bstop - ctx.value->buffer), ctx.value->buffer);
+ break;
+ case XML_STATE_CDATA:
+ bprintf(out, "CDATA [%.*s]\n", (int)(ctx.chars->bstop - ctx.chars->buffer), ctx.chars->buffer);
+ break;
+ case XML_STATE_EOF:
+ bprintf(out, "EOF\n");
+ goto end;
+ break;
+ }
+end:
+ xml_cleanup(&ctx);
+}
+
+int
+main(void)
+{
+ struct fastbuf *in = bfdopen_shared(0, 1024);
+ struct fastbuf *out = bfdopen_shared(1, 1024);
+ test(in, out);
+ bclose(out);
+ return 0;
+}
+
+#endif
--- /dev/null
+/*
+ * Sherlock Library -- A simple XML parser
+ *
+ * (c) 2007 Pavel Charvat <pchar@ucw.cz>
+ *
+ * This software may be freely distributed and used according to the terms
+ * of the GNU Lesser General Public License.
+ */
+
+#ifndef _SHERLOCK_XML_H
+#define _SHERLOCK_XML_H
+
+#include "lib/clists.h"
+#include "lib/slists.h"
+#include "lib/mempool.h"
+
+enum xml_error {
+ XML_ERR_OK = 0,
+ XML_ERR_WARN = 1000, /* Warning */
+ XML_ERR_ERROR = 2000, /* Recoverable error */
+ XML_ERR_FATAL = 3000, /* Unrecoverable error */
+ XML_ERR_EOF,
+};
+
+enum xml_state {
+ XML_STATE_START = 0,
+ XML_STATE_DECL,
+ XML_STATE_DOCUMENT_TYPE,
+ XML_STATE_CHARS,
+ XML_STATE_WHITE,
+ XML_STATE_CDATA,
+ XML_STATE_STAG,
+ XML_STATE_ETAG,
+ XML_STATE_COMMENT,
+ XML_STATE_PI,
+ XML_STATE_EOF,
+ XML_STATE_FATAL,
+
+ /* Internal states */
+ XML_STATE_CHARS_BEFORE_STAG,
+ XML_STATE_CHARS_BEFORE_ETAG,
+ XML_STATE_CHARS_BEFORE_CDATA,
+ XML_STATE_CHARS_BEFORE_PI,
+ XML_STATE_CHARS_BEFORE_COMMENT,
+ XML_STATE_PROLOG_PI,
+ XML_STATE_PROLOG_COMMENT,
+ XML_STATE_EPILOG_PI,
+ XML_STATE_EPILOG_COMMENT,
+};
+
+enum xml_want {
+ XML_WANT_DECL = 1 << XML_STATE_DECL,
+ XML_WANT_DOCUMENT_TYPE = 1 << XML_STATE_DOCUMENT_TYPE,
+ XML_WANT_CHARS = 1 << XML_STATE_CHARS,
+ XML_WANT_WHITE = 1 << XML_STATE_WHITE,
+ XML_WANT_CDATA = 1 << XML_STATE_CDATA,
+ XML_WANT_STAG = 1 << XML_STATE_STAG,
+ XML_WANT_ETAG = 1 << XML_STATE_ETAG,
+ XML_WANT_COMMENT = 1 << XML_STATE_COMMENT,
+ XML_WANT_PI = 1 << XML_STATE_PI,
+ XML_WANT_EOF = 1 << XML_STATE_EOF,
+ XML_WANT_ALL = ~0U,
+};
+
+enum xml_flags {
+ XML_FLAG_VALIDATING = 0x1,
+ XML_FLAG_VERSION_1_1 = 0x2, /* XML version 1.1, otherwise 1.0 */
+ XML_FLAG_HAS_EXTERNAL_SUBSET = 0x4, /* The document contains a reference to external DTD subset */
+ XML_FLAG_HAS_INTERNAL_SUBSET = 0x8, /* The document contains an internal subset */
+
+ XML_FLAG_SRC_EOF = 0x10, /* EOF reached */
+ XML_FLAG_SRC_EXPECTED_DECL = 0x20, /* Just before optional or required XMLDecl/TextDecl */
+ XML_FLAG_SRC_NEW_LINE = 0x40, /* The last read character is 0xD */
+ XML_FLAG_SRC_SURROUND = 0x80, /* Surround the text with 0x20 (references to parameter entities) */
+ XML_FLAG_SRC_DOCUMENT = 0x100, /* The document entity */
+ XML_FLAG_SRC_EXTERNAL = 0x200, /* An external entity */
+
+ XML_DOM_SKIP = 0x1000, /* Do not report DOM nodes */
+ XML_DOM_FREE = 0x2000, /* Free the subtree when leaving */
+ XML_DOM_IGNORE = XML_DOM_SKIP | XML_DOM_FREE, /* Completely ignore the subtree */
+
+ XML_FLAG_EMPTY_ELEM = 0x100000,
+};
+
+struct xml_ext_id {
+ char *system_id;
+ char *public_id;
+};
+
+enum xml_node_type {
+ XML_NODE_ELEM,
+ XML_NODE_COMMENT,
+ XML_NODE_CDATA,
+ XML_NODE_PI,
+};
+
+struct xml_node {
+ cnode n; /* Node for list of parent's sons */
+ uns type; /* XML_NODE_x */
+ struct xml_node *parent; /* Parent node */
+};
+
+struct xml_elem {
+ struct xml_node node;
+ char *name; /* Element name */
+ clist sons; /* List of subnodes */
+ struct xml_dtd_elem *dtd; /* Element DTD */
+ slist attrs; /* Link list of attributes */
+};
+
+struct xml_attr {
+ snode n;
+ struct xml_elem *elem;
+ char *name;
+ char *val;
+};
+
+struct xml_context;
+
+struct xml_stack {
+ struct xml_stack *next; /* Link list of stack records */
+ uns saved_flags; /* Saved ctx->flags */
+ struct mempool_state saved_pool; /* Saved ctx->pool state */
+};
+
+#define XML_BUF_SIZE 32 /* At least 16 -- hardcoded */
+
+struct xml_source {
+ struct xml_source *next; /* Link list of pending fastbufs (xml_context.sources) */
+ struct fastbuf *fb; /* Source fastbuf */
+ struct fastbuf wrap_fb; /* Libcharset or fbmem wrapper */
+ u32 buf[2 * XML_BUF_SIZE]; /* Read buffer with Unicode values and categories */
+ u32 *bptr, *bstop; /* Current state of the buffer */
+ uns row; /* File position */
+ char *expected_encoding; /* Initial encoding before any transformation has been made (expected in XMLDecl/TextDecl) */
+ char *fb_encoding; /* Encoding of the source fastbuf */
+ char *decl_encoding; /* Encoding read from the XMLDecl/TextDecl */
+ uns refill_cat1; /* Character categories, which should be directly passed to the buffer */
+ uns refill_cat2; /* Character categories, which should be processed as newlines (possibly in some built-in sequences) */
+ void (*refill)(struct xml_context *ctx); /* Callback to decode source characters to the buffer */
+ unsigned short *refill_in_to_x; /* Libcharset input table */
+ uns saved_depth; /* Saved ctx->depth */
+};
+
+struct xml_context {
+ /* Error handling */
+ char *err_msg; /* Last error message */
+ enum xml_error err_code; /* Last error code */
+ void *throw_buf; /* Where to jump on error */
+ void (*h_warn)(struct xml_context *ctx); /* Warning callback */
+ void (*h_error)(struct xml_context *ctx); /* Recoverable error callback */
+ void (*h_fatal)(struct xml_context *ctx); /* Unrecoverable error callback */
+
+ /* Memory management */
+ struct mempool *pool; /* Most data */
+ struct fastbuf *chars; /* Character data */
+ struct fastbuf *value; /* Attribute value / comment / processing instruction data */
+ char *name; /* Attribute name, processing instruction target */
+ void *tab_attrs;
+
+ /* Stack */
+ struct xml_stack *stack; /* See xml_push(), xml_pop() */
+ uns flags; /* XML_FLAG_x (restored on xml_pop()) */
+ uns depth; /* Nesting level */
+
+ /* Input */
+ struct xml_source *src; /* Current source */
+ u32 *bptr, *bstop; /* Character buffer */
+
+ /* SAX-like interface */
+ void (*h_document_start)(struct xml_context *ctx); /* Called before entering prolog */
+ void (*h_document_end)(struct xml_context *ctx); /* Called after leaving epilog */
+ void (*h_xml_decl)(struct xml_context *ctx); /* Called after the XML declaration */
+ void (*h_doctype_decl)(struct xml_context *ctx); /* Called in the doctype declaration just before internal subset */
+ void (*h_pi)(struct xml_context *ctx); /* Called after a processing instruction */
+ void (*h_comment)(struct xml_context *ctx); /* Called after a comment */
+ void (*h_element_start)(struct xml_context *ctx); /* Called after STag or EmptyElemTag */
+ void (*h_element_end)(struct xml_context *ctx); /* Called before ETag or after EmptyElemTag */
+
+ /* DOM */
+ struct xml_elem *root; /* DOM root */
+ union {
+ struct xml_node *node; /* Current DOM node */
+ struct xml_elem *elem; /* Current element */
+ };
+
+ char *version_str;
+ uns standalone;
+ char *document_type;
+ struct xml_dtd *dtd;
+ struct xml_ext_id eid;
+ uns state;
+ uns want;
+
+ void (*start_dtd)(struct xml_context *ctx);
+ void (*end_dtd)(struct xml_context *ctx);
+ void (*start_cdata)(struct xml_context *ctx);
+ void (*end_cdata)(struct xml_context *ctx);
+ void (*start_entity)(struct xml_context *ctx);
+ void (*end_entity)(struct xml_context *ctx);
+ void (*chacacters)(struct xml_context *ctx);
+ struct fastbuf *(*resolve_entity)(struct xml_context *ctx);
+ void (*notation_decl)(struct xml_context *ctx);
+ void (*unparsed_entity_decl)(struct xml_context *ctx);
+};
+
+/*** Document Type Definition (DTD) ***/
+
+struct xml_dtd {
+ struct mempool *pool; /* Memory pool where to allocate DTD */
+ slist gents; /* Link list of general entities */
+ slist pents; /* Link list of parapeter entities */
+ slist notns; /* Link list of notations */
+ slist elems; /* Link list of elements */
+ void *tab_gents; /* Hash table of general entities */
+ void *tab_pents; /* Hash table of parameter entities */
+ void *tab_notns; /* Hash table of notations */
+ void *tab_elems; /* Hash table of elements */
+ void *tab_attrs; /* Hash table of element attributes */
+ void *tab_evals; /* Hash table of enumerated attribute values */
+ void *tab_enotns; /* hash table of enumerated attribute notations */
+};
+
+/* Notations */
+
+enum xml_dtd_notn_flags {
+ XML_DTD_NOTN_DECLARED = 0x1, /* The notation has been declared (interbal usage) */
+};
+
+struct xml_dtd_notn {
+ snode n; /* Node in xml_dtd.notns */
+ uns flags; /* XML_DTD_NOTN_x */
+ char *name; /* Notation name */
+ struct xml_ext_id eid; /* External id */
+};
+
+/* Entities */
+
+enum xml_dtd_ent_flags {
+ XML_DTD_ENT_DECLARED = 0x1, /* The entity has been declared (internal usage) */
+ XML_DTD_ENT_VISITED = 0x2, /* Cycle detection (internal usage) */
+ XML_DTD_ENT_PARAMETER = 0x4, /* Parameter entity, general otherwise */
+ XML_DTD_ENT_EXTERNAL = 0x8, /* External entity, internal otherwise */
+ XML_DTD_ENT_UNPARSED = 0x10, /* Unparsed entity, parsed otherwise */
+ XML_DTD_ENT_TRIVIAL = 0x20, /* Replacement text is a sequence of characters and character references */
+};
+
+struct xml_dtd_ent {
+ snode n; /* Node in xml_dtd.[gp]ents */
+ uns flags; /* XML_DTD_ENT_x */
+ char *name; /* Entity name */
+ char *text; /* Replacement text / expanded replacement text (XML_DTD_ENT_TRIVIAL) */
+ uns len; /* Text length */
+ struct xml_ext_id eid; /* External ID */
+ struct xml_dtd_notn *notn; /* Notation (XML_DTD_ENT_UNPARSED only) */
+};
+
+/* Elements */
+
+enum xml_dtd_elem_flags {
+ XML_DTD_ELEM_DECLARED = 0x1, /* The element has been declared (internal usage) */
+};
+
+struct xml_dtd_elem {
+ snode n;
+ uns flags;
+ char *name;
+ struct xml_dtd_elem_node *node;
+};
+
+struct xml_dtd_elem_node {
+ snode n;
+ struct xml_dtd_elem_node *parent;
+ slist sons;
+ uns type;
+ uns occur;
+};
+
+enum xml_dtd_elem_node_type {
+ XML_DTD_ELEM_PCDATA,
+ XML_DTD_ELEM_SEQ,
+ XML_DTD_ELEM_OR,
+};
+
+enum xml_dtd_elem_node_occur {
+ XML_DTD_ELEM_OCCUR_ONCE,
+ XML_DTD_ELEM_OCCUR_OPT,
+ XML_DTD_ELEM_OCCUR_MULT,
+ XML_DTD_ELEM_OCCUR_PLUS,
+};
+
+/* Attributes */
+
+
+enum xml_dtd_attribute_default {
+ XML_ATTR_NONE,
+ XML_ATTR_REQUIRED,
+ XML_ATTR_IMPLIED,
+ XML_ATTR_FIXED,
+};
+
+enum xml_dtd_attribute_type {
+ XML_ATTR_CDATA,
+ XML_ATTR_ID,
+ XML_ATTR_IDREF,
+ XML_ATTR_IDREFS,
+ XML_ATTR_ENTITY,
+ XML_ATTR_ENTITIES,
+ XML_ATTR_NMTOKEN,
+ XML_ATTR_NMTOKENS,
+ XML_ATTR_ENUM,
+ XML_ATTR_NOTATION,
+};
+
+struct xml_dtd_attr {
+ char *name;
+ struct xml_dtd_elem *elem;
+ enum xml_dtd_attribute_type type;
+ enum xml_dtd_attribute_default default_mode;
+ char *default_value;
+};
+
+struct xml_dtd_eval {
+ struct xml_dtd_attr *attr;
+ char *val;
+};
+
+struct xml_dtd_enotn {
+ struct xml_dtd_attr *attr;
+ struct xml_dtd_notn *notn;
+};
+
+void xml_init(struct xml_context *ctx);
+void xml_cleanup(struct xml_context *ctx);
+void xml_set_source(struct xml_context *ctx, struct fastbuf *fb);
+int xml_next(struct xml_context *ctx);
+
+#endif
projects / libucw.git / commitdiff