X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/c6c8de1609da38a4ffb6dbed8047491d85d57e3d..fea2516636dfcf73e92c24b68804ffe7666086c1:/src/scan-skel.l

diff --git a/src/scan-skel.l b/src/scan-skel.l
index 84162572..f13ee813 100644
--- 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.
 
@@ -41,8 +41,11 @@
 #define YY_DECL static int skel_lex (void)
 YY_DECL;
 
-static void at_directive_perform (int argc, char *argv[],
-                                  char **outnamep, int *out_linenop);
+typedef void (*at_directive)(int, char**, char **, int*);
+static void at_init (int *argc, char *argv[], at_directive *at_ptr, at_directive fun);
+static void at_basename (int argc, char *argv[], char**, int*);
+static void at_complain (int argc, char *argv[], char**, int*);
+static void at_output (int argc, char *argv[], char **name, int *lineno);
 static void fail_for_at_directive_too_many_args (char const *at_directive_name);
 static void fail_for_at_directive_too_few_args (char const *at_directive_name);
 static void fail_for_invalid_at (char const *at);
@@ -55,7 +58,7 @@ static void fail_for_invalid_at (char const *at);
 
 %{
   int out_lineno PACIFY_CC (= 0);
-  char *outname = NULL;
+  char *out_name = NULL;
 
   /* Currently, only the @complain directive takes multiple arguments, and
      never more than 7, with argv[0] being the directive name and argv[1]
@@ -63,33 +66,31 @@ static void fail_for_invalid_at (char const *at);
 #define ARGC_MAX 9
   int argc = 0;
   char *argv[ARGC_MAX];
+  at_directive at_ptr = NULL;
 %}
 
 "@@" 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, outname), yyout);
+"@ofile@"  fputs (quotearg_style (c_quoting_style, out_name), yyout);
 
-@[a-z_]+"(" {
-  yytext[yyleng-1] = '\0';
-  obstack_grow (&obstack_for_string, yytext, yyleng);
-  argv[argc++] = obstack_finish (&obstack_for_string);
-  BEGIN SC_AT_DIRECTIVE_ARGS;
-}
+"@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 (outname)
+  if (out_name)
     {
-      free (outname);
+      free (out_name);
       xfclose (yyout);
     }
   return EOF;
@@ -102,7 +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;
 
   @[,)] {
@@ -116,7 +117,8 @@ static void fail_for_invalid_at (char const *at);
       BEGIN SC_AT_DIRECTIVE_SKIP_WS;
     else
       {
-        at_directive_perform (argc, argv, &outname, &out_lineno);
+        aver (at_ptr);
+        at_ptr (argc, argv, &out_name, &out_lineno);
         obstack_free (&obstack_for_string, argv[0]);
         argc = 0;
         BEGIN INITIAL;
@@ -139,6 +141,16 @@ static void fail_for_invalid_at (char const *at);
 
 %%
 
+static void
+at_init (int *argc, char *argv[], at_directive *at_ptr, at_directive fun)
+{
+  *at_ptr = fun;
+  yytext[yyleng-1] = '\0';
+  obstack_grow (&obstack_for_string, yytext, yyleng);
+  argv[(*argc)++] = obstack_finish (&obstack_for_string);
+  BEGIN SC_AT_DIRECTIVE_ARGS;
+}
+
 /*------------------------.
 | Scan a Bison skeleton.  |
 `------------------------*/
@@ -169,65 +181,72 @@ static inline warnings
 flag (const char *arg)
 {
   /* compare with values issued from b4_error */
-  if (STREQ (arg, "warn"))
-    return Wother;
-  else if (STREQ (arg, "complain"))
+  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
     aver (false);
 }
 
 static void
-at_directive_perform (int argc, char *argv[], char **outnamep, int *out_linenop)
+at_basename (int argc, char *argv[], char **out_namep, int *out_linenop)
 {
-  if (STREQ (argv[0], "@basename"))
+  (void) out_namep;
+  (void) out_linenop;
+  if (2 < argc)
+    fail_for_at_directive_too_many_args (argv[0]);
+  fputs (last_component (argv[1]), yyout);
+}
+
+static void
+at_complain (int argc, char *argv[], char **out_namep, int *out_linenop)
+{
+  static unsigned indent;
+  warnings w = flag (argv[1]);
+  location loc;
+  location *locp = NULL;
+
+  (void) out_namep;
+  (void) out_linenop;
+
+  if (argc < 4)
+    fail_for_at_directive_too_few_args (argv[0]);
+  if (argv[2] && argv[2][0])
     {
-      if (argc > 2)
-        fail_for_at_directive_too_many_args (argv[0]);
-      fputs (last_component (argv[1]), yyout);
+      boundary_set_from_string (&loc.start, argv[2]);
+      boundary_set_from_string (&loc.end, argv[3]);
+      locp = &loc;
     }
-  else if (STREQ (argv[0], "@complain"))
-    {
-      static unsigned indent;
-      if (argc < 4)
-        fail_for_at_directive_too_few_args (argv[0]);
-      warnings w = flag (argv[1]);
-      if ((w & silent) != silent)
-        indent = 0;
-      location loc;
-      location *locp = NULL;
-      if (argv[2] && argv[2][0])
-        {
-          boundary_set_from_string (&loc.start, argv[2]);
-          boundary_set_from_string (&loc.end, argv[3]);
-          locp = &loc;
-        }
-      if (w & silent)
-        indent += SUB_INDENT;
-      complain_args (locp, w, &indent, argc - 3, argv + 3);
-      if (w & silent)
-        indent -= SUB_INDENT;
-     }
-  else if (STREQ (argv[0], "@output"))
+  if (w & silent)
+    indent += SUB_INDENT;
+  else
+    indent = 0;
+  complain_args (locp, w, &indent, argc - 4, argv + 4);
+  if (w & silent)
+    indent -= SUB_INDENT;
+}
+
+static void
+at_output (int argc, char *argv[], char **out_namep, int *out_linenop)
+{
+  if (2 < argc)
+    fail_for_at_directive_too_many_args (argv[0]);
+  if (*out_namep)
     {
-      if (argc > 2)
-        fail_for_at_directive_too_many_args (argv[0]);
-      if (*outnamep)
-        {
-          free (*outnamep);
-          xfclose (yyout);
-        }
-      *outnamep = xstrdup (argv[1]);
-      output_file_name_check (outnamep);
-      yyout = xfopen (*outnamep, "w");
-      *out_linenop = 1;
+      free (*out_namep);
+      xfclose (yyout);
     }
-  else
-    fail_for_invalid_at (argv[0]);
+  *out_namep = xstrdup (argv[1]);
+  output_file_name_check (out_namep);
+  yyout = xfopen (*out_namep, "w");
+  *out_linenop = 1;
 }
 
 static void