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[bison.git] / src / scan-gram.l

diff --git a/src/scan-gram.l b/src/scan-gram.l
index 1d3c0cfbe9d44d95578fe767ccff271978cb5215..d52984526e661fccb61eb9318f9c2871c0d3f15d 100644 (file)
--- a/src/scan-gram.l
+++ b/src/scan-gram.l
@@ -34,14 +34,14 @@
 #define YY_USER_INIT                           \
 do {                                           \
   LOCATION_RESET (*yylloc);                    \
+  yylloc->file = infile;                       \
    /* This is only to avoid GCC warnings. */   \
   if (yycontrol) {;};                          \
 } while (0)
 
-#define YY_USER_ACTION  LOCATION_COLUMNS (*yylloc, yyleng)
-#define YY_LINES        LOCATION_LINES (*yylloc, yyleng); lineno += yyleng;
-#define YY_STEP         LOCATION_STEP (*yylloc)
-
+#define YY_USER_ACTION  LOCATION_COLUMNS (*yylloc, yyleng);
+#define YY_LINES        LOCATION_LINES (*yylloc, yyleng);
+#define YY_STEP         LOCATION_STEP (*yylloc);
 
 /* STRING_OBSTACK -- Used to store all the characters that we need to
    keep (to construct ID, STRINGS etc.).  Use the following macros to
@@ -90,7 +90,7 @@ static void handle_at PARAMS ((braced_code_t code_kind,
 %x SC_ESCAPED_STRING SC_ESCAPED_CHARACTER
 %x SC_BRACED_CODE SC_PROLOGUE SC_EPILOGUE
 
-id      [.a-zA-Z][.a-zA-Z_0-9]*
+id      [.a-zA-Z_][.a-zA-Z_0-9]*
 int     [0-9]+
 eols     (\n|\r|\n\r|\r\n)+
 blanks   [ \t\f]+
@@ -294,7 +294,8 @@ blanks   [ \t\f]+
       YY_OBS_FINISH;
       yylval->symbol = symbol_get (last_string, *yylloc);
       symbol_class_set (yylval->symbol, token_sym, *yylloc);
-      symbol_user_token_number_set (yylval->symbol, last_string[1], *yylloc);
+      symbol_user_token_number_set (yylval->symbol,
+                                   (unsigned char) last_string[1], *yylloc);
       YY_OBS_FREE;
       yy_pop_state ();
       return ID;
@@ -730,4 +731,6 @@ void
 scanner_free (void)
 {
   obstack_free (&string_obstack, 0);
+  /* Reclaim Flex's buffers.  */
+  yy_delete_buffer (YY_CURRENT_BUFFER);
 }