X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/c932d6135ca3e508f7136810b9b0bf79725290b9..63951be29fcb8e21146a9377176d53d509c575ca:/src/scan-gram.l?ds=sidebyside

diff --git a/src/scan-gram.l b/src/scan-gram.l
index f2819b74..ad061cc6 100644
--- a/src/scan-gram.l
+++ b/src/scan-gram.l
@@ -36,7 +36,7 @@
 #include "reader.h"
 #include "uniqstr.h"
 
-#include <ctype.h>
+#include <c-ctype.h>
 #include <mbswidth.h>
 #include <quote.h>
 
@@ -88,11 +88,11 @@ static void unexpected_newline (boundary, char const *);
  /* Strings and characters in directives/rules. */
 %x SC_ESCAPED_STRING SC_ESCAPED_CHARACTER
  /* A identifier was just read in directives/rules.  Special state
-    to capture the sequence `identifier :'. */
+    to capture the sequence 'identifier :'. */
 %x SC_AFTER_IDENTIFIER
 
  /* Three types of user code:
-    - prologue (code between `%{' `%}' in the first section, before %%);
+    - prologue (code between '%{' '%}' in the first section, before %%);
     - actions, printers, union, etc, (between braced in the middle section);
     - epilogue (everything after the second %%). */
 %x SC_PROLOGUE SC_BRACED_CODE SC_EPILOGUE
@@ -146,7 +146,7 @@ splice	 (\\[ \f\t\v]*\n)*
 <INITIAL,SC_AFTER_IDENTIFIER,SC_BRACKETED_ID,SC_RETURN_BRACKETED_ID>
 {
   /* Comments and white space.  */
-  ","	       warn_at (*loc, _("stray `,' treated as white space"));
+  ","          warn_at (*loc, _("stray ',' treated as white space"));
   [ \f\n\t\v]  |
   "//".*       ;
   "/*" {
@@ -291,7 +291,7 @@ splice	 (\\[ \f\t\v]*\n)*
   }
 
   . {
-    complain_at (*loc, _("invalid character: %s"), quote (yytext));
+    complain_at (*loc, _("invalid character: %s"), quote_mem (yytext, yyleng));
   }
 
   <<EOF>> {
@@ -375,7 +375,7 @@ splice	 (\\[ \f\t\v]*\n)*
   }
   . {
     complain_at (*loc, _("invalid character in bracketed name: %s"),
-		 quote (yytext));
+		 quote_mem (yytext, yyleng));
   }
   <<EOF>> {
     BEGIN bracketed_id_context_state;
@@ -397,7 +397,7 @@ splice	 (\\[ \f\t\v]*\n)*
 
 
   /*---------------------------------------------------------------.
-  | Scanning a Yacc comment.  The initial `/ *' is already eaten.  |
+  | Scanning a Yacc comment.  The initial '/ *' is already eaten.  |
   `---------------------------------------------------------------*/
 
 <SC_YACC_COMMENT>
@@ -409,7 +409,7 @@ splice	 (\\[ \f\t\v]*\n)*
 
 
   /*------------------------------------------------------------.
-  | Scanning a C comment.  The initial `/ *' is already eaten.  |
+  | Scanning a C comment.  The initial '/ *' is already eaten.  |
   `------------------------------------------------------------*/
 
 <SC_COMMENT>
@@ -420,7 +420,7 @@ splice	 (\\[ \f\t\v]*\n)*
 
 
   /*--------------------------------------------------------------.
-  | Scanning a line comment.  The initial `//' is already eaten.  |
+  | Scanning a line comment.  The initial '//' is already eaten.  |
   `--------------------------------------------------------------*/
 
 <SC_LINE_COMMENT>
@@ -560,7 +560,7 @@ splice	 (\\[ \f\t\v]*\n)*
   \\(.|\n)	{
     char const *p = yytext + 1;
     /* Quote only if escaping won't make the character visible.  */
-    if (isspace ((unsigned char) *p) && isprint ((unsigned char) *p))
+    if (c_isspace ((unsigned char) *p) && c_isprint ((unsigned char) *p))
       p = quote (p);
     else
       p = quotearg_style_mem (escape_quoting_style, p, 1);
@@ -648,8 +648,8 @@ splice	 (\\[ \f\t\v]*\n)*
       }
   }
 
-  /* Tokenize `<<%' correctly (as `<<' `%') rather than incorrrectly
-     (as `<' `<%').  */
+  /* Tokenize '<<%' correctly (as '<<' '%') rather than incorrrectly
+     (as '<' '<%').  */
   "<"{splice}"<"  STRING_GROW;
 
   <<EOF>> {
@@ -840,7 +840,7 @@ convert_ucn_to_byte (char const *ucn)
 
 
 /*----------------------------------------------------------------.
-| Handle `#line INT "FILE"'.  ARGS has already skipped `#line '.  |
+| Handle '#line INT "FILE"'.  ARGS has already skipped '#line '.  |
 `----------------------------------------------------------------*/
 
 static void
@@ -872,6 +872,10 @@ unexpected_end (boundary start, char const *msgid, char const *token_end)
   location loc;
   loc.start = start;
   loc.end = scanner_cursor;
+  token_end = quote (token_end);
+  // Instead of '\'', display "'".
+  if (!strcmp (token_end, "'\\''"))
+    token_end = "\"'\"";
   complain_at (loc, _(msgid), token_end);
 }
 
@@ -884,7 +888,7 @@ unexpected_end (boundary start, char const *msgid, char const *token_end)
 static void
 unexpected_eof (boundary start, char const *token_end)
 {
-  unexpected_end (start, N_("missing `%s' at end of file"), token_end);
+  unexpected_end (start, N_("missing %s at end of file"), token_end);
 }
 
 
@@ -895,7 +899,7 @@ unexpected_eof (boundary start, char const *token_end)
 static void
 unexpected_newline (boundary start, char const *token_end)
 {
-  unexpected_end (start, N_("missing `%s' at end of line"), token_end);
+  unexpected_end (start, N_("missing %s at end of line"), token_end);
 }