From 6f969e65e2bee7745a28f9f8cf54540257895f7e Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Sun, 17 Apr 2005 15:24:10 +0000
Subject: [PATCH] Added pedantic check of file syntax.

---
 Makefile     |  3 ++-
 src/pedant.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+), 1 deletion(-)
 create mode 100644 src/pedant.c

diff --git a/Makefile b/Makefile
index 70d6c0a..db12c3f 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ VERSION=1.0
 #DEBUG=-ggdb
 CFLAGS=-O2 -Wall -W -Wno-parentheses -Wstrict-prototypes -Wmissing-prototypes -Winline $(DEBUG)
 
-all: bin/box bin/iwrapper bin/md5crypt
+all: bin/box bin/iwrapper bin/md5crypt bin/pedant
 
 bin/%: src/%.o
 	$(CC) $(LDFLAGS) -o $@ $^
@@ -10,6 +10,7 @@ bin/%: src/%.o
 bin/box: src/box.o
 bin/iwrapper: src/iwrapper.o
 bin/md5crypt: src/md5crypt.o src/md5.o
+bin/pedant: src/pedant.o
 
 clean:
 	rm -f `find . -name "*~" -or -name "*.[oa]" -or -name "\#*\#" -or -name TAGS -or -name core`
diff --git a/src/pedant.c b/src/pedant.c
new file mode 100644
index 0000000..cefd317
--- /dev/null
+++ b/src/pedant.c
@@ -0,0 +1,58 @@
+/*
+ *	A Pedantic Check of Text Input/Output File Syntax
+ *
+ *	(c) 2005 Martin Mares <mj@ucw.cz>
+ */
+
+#include <stdio.h>
+
+int main(void)
+{
+  int line = 1;
+  int pos = 0;
+  int maxlen = 0;
+  int lastlen = -1;
+  int space = 0;
+  int c;
+  while ((c = getchar()) >= 0)
+    {
+      if (c == '\n')
+	{
+	  if (space)
+	    printf("Line %d: Trailing spaces\n", line);
+	  if (line == 1 && !pos)
+	    printf("Line %d: Leading empty line\n", line);
+	  if (maxlen < pos)
+	    maxlen = pos;
+	  if (!lastlen && !pos)
+	    printf("Line %d: Consecutive empty lines\n", line);
+	  lastlen = pos;
+	  line++;
+	  pos = space = 0;
+	}
+      else
+	{
+	  if (c == ' ')
+	    {
+	      if (!pos)
+		printf("Line %d: Leading spaces\n", line);
+	      if (space)
+		printf("Line %d: Consecutive spaces\n", line);
+	      space = 1;
+	    }
+	  else
+	    {
+	      space = 0;
+	      if (c < ' ' || c >= 0x7f)
+		printf("Line %d: Invalid character 0x%02x\n", line, c);
+	    }
+	  pos++;
+	}
+    }
+  if (pos)
+    printf("Line %d: Incomplete line at the end of file\n", line);
+  else if (!lastlen)
+    printf("Line %d: Trailing empty line\n", line-1);
+  printf("Found %d lines, the longest has %d chars\n", line-1, maxlen);
+  return 0;
+}
-- 
2.39.2