Judge: Added function get_nl() for checking of an expected end of line.

[eval.git] / judge / token.c

diff --git a/judge/token.c b/judge/token.c
index 3c8ce38cd71c68e642ca9a767bd4eef9b6f20388..4606395483935493c2d8715099174c389254b820 100644 (file)
--- a/judge/token.c
+++ b/judge/token.c
@@ -101,6 +101,8 @@ char *get_token(struct tokenizer *t)
 #define PARSE(f, ...)                                          \
        char *end;                                              \
        errno = 0;                                              \
+       if (!t->toksize)                                        \
+         return 0;                                             \
        *x = f(t->token, &end, ##__VA_ARGS__);                  \
        return !(errno || (unsigned char *) end != t->token + t->toksize)
 
@@ -161,3 +163,10 @@ GET(long, long int)
 GET(ulong, unsigned long int)
 GET(double, double)
 GET(long_double, long double)
+
+void get_nl(struct tokenizer *t)
+{
+  char *tok = get_token(t);
+  if (tok && *tok)
+    tok_err(t, "Expected end of line");
+}