Update.

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

diff --git a/src/scan-gram.l b/src/scan-gram.l
index 1d3c0cfbe9d44d95578fe767ccff271978cb5215..ef3976af3903f966c9396ce4e74db52b1344b41a 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]+
@@ -167,10 +167,10 @@ blanks   [ \t\f]+
   {int}       yylval->integer = strtol (yytext, 0, 10); return INT;
 
   /* Characters.  We don't check there is only one.  */
-  \'          YY_OBS_GROW; yy_push_state (SC_ESCAPED_CHARACTER);
+  "'"         YY_OBS_GROW; yy_push_state (SC_ESCAPED_CHARACTER);
 
   /* Strings. */
-  \"          YY_OBS_GROW; yy_push_state (SC_ESCAPED_STRING);
+  "\""        YY_OBS_GROW; yy_push_state (SC_ESCAPED_STRING);
 
   /* Comments. */
   "/*"        yy_push_state (SC_COMMENT);
@@ -199,7 +199,7 @@ blanks   [ \t\f]+
 
   .           {
     LOCATION_PRINT (stderr, *yylloc);
-    fprintf (stderr, ": invalid character: `%c'\n", *yytext);
+    fprintf (stderr, _(": invalid character: `%c'\n"), *yytext);
     YY_STEP;
   }
 }
@@ -243,7 +243,7 @@ blanks   [ \t\f]+
 
   <<EOF>> {
     LOCATION_PRINT (stderr, *yylloc);
-    fprintf (stderr, ": unexpected end of file in a comment\n");
+    fprintf (stderr, _(": unexpected end of file in a comment\n"));
     yy_pop_state ();
   }
 }
@@ -256,7 +256,7 @@ blanks   [ \t\f]+
 
 <SC_ESCAPED_STRING>
 {
-  \" {
+  "\"" {
     assert (yy_top_state () == INITIAL);
     YY_OBS_GROW;
     YY_OBS_FINISH;
@@ -271,7 +271,7 @@ blanks   [ \t\f]+
 
   <<EOF>> {
     LOCATION_PRINT (stderr, *yylloc);
-    fprintf (stderr, ": unexpected end of file in a string\n");
+    fprintf (stderr, _(": unexpected end of file in a string\n"));
     assert (yy_top_state () == INITIAL);
     YY_OBS_FINISH;
     yylval->string = last_string;
@@ -287,27 +287,28 @@ blanks   [ \t\f]+
 
 <SC_ESCAPED_CHARACTER>
 {
-  \' {
+  "'" {
     YY_OBS_GROW;
     assert (yy_top_state () == INITIAL);
     {
       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;
     }
   }
 
-  [^\'\n\r\\]      YY_OBS_GROW;
+  [^\n\r\\] YY_OBS_GROW;
 
   {eols}    obstack_1grow (&string_obstack, '\n'); YY_LINES;
 
   <<EOF>> {
     LOCATION_PRINT (stderr, *yylloc);
-    fprintf (stderr, ": unexpected end of file in a character\n");
+    fprintf (stderr, _(": unexpected end of file in a character\n"));
     assert (yy_top_state () == INITIAL);
     YY_OBS_FINISH;
     yylval->string = last_string;
@@ -328,7 +329,7 @@ blanks   [ \t\f]+
     if (c > 255)
       {
        LOCATION_PRINT (stderr, *yylloc);
-       fprintf (stderr, ": invalid escape: %s\n", quote (yytext));
+       fprintf (stderr, _(": invalid escape: %s\n"), quote (yytext));
        YY_STEP;
       }
     else
@@ -349,7 +350,7 @@ blanks   [ \t\f]+
   \\[\\""]   obstack_1grow (&string_obstack, yytext[1]);
   \\(.|\n)     {
     LOCATION_PRINT (stderr, *yylloc);
-    fprintf (stderr, ": unrecognized escape: %s\n", quote (yytext));
+    fprintf (stderr, _(": unrecognized escape: %s\n"), quote (yytext));
     YY_OBS_GROW;
   }
   /* FLex wants this rule, in case of a `\<<EOF>>'. */
@@ -364,7 +365,7 @@ blanks   [ \t\f]+
 
 <SC_CHARACTER>
 {
-  \' {
+  "'" {
     YY_OBS_GROW;
     assert (yy_top_state () != INITIAL);
     yy_pop_state ();
@@ -379,7 +380,7 @@ blanks   [ \t\f]+
 
   <<EOF>> {
     LOCATION_PRINT (stderr, *yylloc);
-    fprintf (stderr, ": unexpected end of file in a character\n");
+    fprintf (stderr, _(": unexpected end of file in a character\n"));
     assert (yy_top_state () != INITIAL);
     yy_pop_state ();
   }
@@ -393,7 +394,7 @@ blanks   [ \t\f]+
 
 <SC_STRING>
 {
-  \" {
+  "\"" {
     assert (yy_top_state () != INITIAL);
     YY_OBS_GROW;
     yy_pop_state ();
@@ -408,7 +409,7 @@ blanks   [ \t\f]+
 
   <<EOF>> {
     LOCATION_PRINT (stderr, *yylloc);
-    fprintf (stderr, ": unexpected end of file in a string\n");
+    fprintf (stderr, _(": unexpected end of file in a string\n"));
     assert (yy_top_state () != INITIAL);
     yy_pop_state ();
   }
@@ -422,10 +423,10 @@ blanks   [ \t\f]+
 <SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>
 {
   /* Characters.  We don't check there is only one.  */
-  \'          YY_OBS_GROW; yy_push_state (SC_CHARACTER);
+  "'"         YY_OBS_GROW; yy_push_state (SC_CHARACTER);
 
   /* Strings. */
-  \"          YY_OBS_GROW; yy_push_state (SC_STRING);
+  "\""        YY_OBS_GROW; yy_push_state (SC_STRING);
 
   /* Comments. */
   "/*"        YY_OBS_GROW; yy_push_state (SC_COMMENT);
@@ -469,7 +470,7 @@ blanks   [ \t\f]+
 
   <<EOF>> {
     LOCATION_PRINT (stderr, *yylloc);
-    fprintf (stderr, ": unexpected end of file in a braced code\n");
+    fprintf (stderr, _(": unexpected end of file in a braced code\n"));
     yy_pop_state ();
     YY_OBS_FINISH;
     yylval->string = last_string;
@@ -498,7 +499,7 @@ blanks   [ \t\f]+
 
   <<EOF>> {
     LOCATION_PRINT (stderr, *yylloc);
-    fprintf (stderr, ": unexpected end of file in a prologue\n");
+    fprintf (stderr, _(": unexpected end of file in a prologue\n"));
     yy_pop_state ();
     YY_OBS_FINISH;
     yylval->string = last_string;
@@ -563,7 +564,7 @@ handle_action_dollar (char *text, location_t location)
       obstack_fgrow1 (&string_obstack,
                      "]b4_lhs_value([%s])[", type_name);
     }
-  else if (isdigit (*cp) || *cp == '-')
+  else if (('0' <= *cp && *cp <= '9') || *cp == '-')
     {
       /* RULE_LENGTH is the number of values in the current rule so
         far, which says where to find `$0' with respect to the top of
@@ -650,7 +651,7 @@ handle_action_at (char *text, location_t location)
     {
       obstack_sgrow (&string_obstack, "]b4_lhs_location[");
     }
-  else if (isdigit (*cp) || *cp == '-')
+  else if (('0' <= *cp && *cp <= '9') || *cp == '-')
     {
       /* RULE_LENGTH is the number of values in the current rule so
         far, which says where to find `$0' with respect to the top of
@@ -730,4 +731,6 @@ void
 scanner_free (void)
 {
   obstack_free (&string_obstack, 0);
+  /* Reclaim Flex's buffers.  */
+  yy_delete_buffer (YY_CURRENT_BUFFER);
 }