doc: specify documentation encoding

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

diff --git a/src/scan-skel.l b/src/scan-skel.l
index de85b4e028958c4f98dab6003df090a7fb4bfd28..129b8899a5d92117a2381641cc95aeb18d9e8164 100644 (file)
--- a/src/scan-skel.l
+++ b/src/scan-skel.l
@@ -1,6 +1,6 @@
 /* Scan Bison Skeletons.                                       -*- C -*-
 
-   Copyright (C) 2001-2012 Free Software Foundation, Inc.
+   Copyright (C) 2001-2013 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -72,21 +72,20 @@ static void fail_for_invalid_at (char const *at);
 "@@" fputc ('@', yyout);
 "@{" fputc ('[', yyout);
 "@}" fputc (']', yyout);
-"@`" continue;  /* Used by b4_cat in ../data/bison.m4.  */
+"@'" continue;  /* Used by b4_cat in ../data/bison.m4.  */
 @\n  continue;
 
 "@oline@"  fprintf (yyout, "%d", out_lineno + 1);
 "@ofile@"  fputs (quotearg_style (c_quoting_style, out_name), yyout);
 
-@basename"("    at_init (&argc, argv, &at_ptr, &at_basename);
-@complain"("    at_init (&argc, argv, &at_ptr, &at_complain);
-@output"("      at_init (&argc, argv, &at_ptr, &at_output);
-@[a-z_]+"("     at_init (&argc, argv, &at_ptr, NULL);
+"@basename("    at_init (&argc, argv, &at_ptr, &at_basename);
+"@complain("    at_init (&argc, argv, &at_ptr, &at_complain);
+"@output("      at_init (&argc, argv, &at_ptr, &at_output);
 
   /* This pattern must not match more than the previous @ patterns. */
-@[^@{}`(\n]* fail_for_invalid_at (yytext);
-\n         out_lineno++; ECHO;
-[^@\n]+    ECHO;
+@[^@{}\'(\n]*   fail_for_invalid_at (yytext);
+\n              out_lineno++; ECHO;
+[^@\n]+         ECHO;
 
 <INITIAL><<EOF>> {
   if (out_name)
@@ -104,7 +103,7 @@ static void fail_for_invalid_at (char const *at);
   "@@"   obstack_1grow (&obstack_for_string, '@');
   "@{"   obstack_1grow (&obstack_for_string, '[');
   "@}"   obstack_1grow (&obstack_for_string, ']');
-  "@`"   continue; /* For starting an argument that begins with whitespace. */
+  "@'"   continue; /* For starting an argument that begins with whitespace. */
   @\n    continue;
 
   @[,)] {
@@ -118,11 +117,8 @@ static void fail_for_invalid_at (char const *at);
       BEGIN SC_AT_DIRECTIVE_SKIP_WS;
     else
       {
-        if (at_ptr)
-          at_ptr (argc, argv, &out_name, &out_lineno);
-        else
-          fail_for_invalid_at (argv[0]);
-
+        aver (at_ptr);
+        at_ptr (argc, argv, &out_name, &out_lineno);
         obstack_free (&obstack_for_string, argv[0]);
         argc = 0;
         BEGIN INITIAL;
@@ -187,10 +183,12 @@ flag (const char *arg)
   /* compare with values issued from b4_error */
   if (STREQ (arg, "complain"))
     return complaint;
+  else if (STREQ (arg, "deprecated"))
+    return Wdeprecated;
   else if (STREQ (arg, "fatal"))
     return fatal;
   else if (STREQ (arg, "note"))
-    return silent;
+    return silent | complaint | no_caret;
   else if (STREQ (arg, "warn"))
     return Wother;
   else
@@ -230,7 +228,7 @@ at_complain (int argc, char *argv[], char **out_namep, int *out_linenop)
     indent += SUB_INDENT;
   else
     indent = 0;
-  complain_args (locp, w, &indent, argc - 3, argv + 3);
+  complain_args (locp, w, &indent, argc - 4, argv + 4);
   if (w & silent)
     indent -= SUB_INDENT;
 }
@@ -246,12 +244,13 @@ at_output (int argc, char *argv[], char **out_namep, int *out_linenop)
       xfclose (yyout);
     }
   *out_namep = xstrdup (argv[1]);
-  output_file_name_check (out_namep);
-  yyout = xfopen (*out_namep, "w");
+  output_file_name_check (out_namep, true);
+  /* If there were errors, do not generate the output.  */
+  yyout = xfopen (complaint_status ? "/dev/null" : *out_namep, "w");
   *out_linenop = 1;
 }
 
-  static void
+static void
 fail_for_at_directive_too_few_args (char const *at_directive_name)
 {
   complain (NULL, fatal, _("too few arguments for %s directive in skeleton"),