/* Scan Bison Skeletons. -*- C -*-
- Copyright (C) 2001-2012 Free Software Foundation, Inc.
+ Copyright (C) 2001-2015 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
#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);
%{
int out_lineno PACIFY_CC (= 0);
- char *outname = NULL;
+ char *out_name = NULL;
- /* Currently, only the @warn, @complain, @fatal, @warn_at, @complain_at, and
- @fatal_at directives take multiple arguments, and the last three already
- can't take more than 7. argv[0] is the directive name. */
- #define ARGC_MAX 8
+ /* Currently, only the @complain directive takes multiple arguments, and
+ never more than 7, with argv[0] being the directive name and argv[1]
+ being the type of complaint to dispatch. */
+#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;
"@@" 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;
@[,)] {
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;
%%
+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. |
`------------------------*/
static inline warnings
flag (const char *arg)
{
- switch (arg[1])
- {
- case 'w': return Wother;
- case 'c': return complaint;
- case 'f': return fatal;
- default: aver (false); break;
- }
+ /* 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 | complaint | no_caret;
+ else if (STREQ (arg, "warn"))
+ return Wother;
+ else
+ abort ();
}
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"))
- {
- if (argc > 2)
- fail_for_at_directive_too_many_args (argv[0]);
- fputs (last_component (argv[1]), yyout);
- }
- else if (STREQ (argv[0], "@warn") || STREQ (argv[0], "@warn_at")
- || STREQ (argv[0], "@complain") || STREQ (argv[0], "@complain_at")
- || STREQ (argv[0], "@fatal") || STREQ (argv[0], "@fatal_at"))
+ (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])
{
- warnings w = flag (*argv);
- location loc;
- location *locp = NULL;
- if (STREQ (*argv + strlen (*argv) - 3, "_at"))
- {
- if (argc < 4)
- fail_for_at_directive_too_few_args (argv[0]);
- boundary_set_from_string (&loc.start, argv[1]);
- boundary_set_from_string (&loc.end, argv[2]);
- argc -= 2;
- argv += 2;
- locp = &loc;
- }
- else if (argc < 2)
- fail_for_at_directive_too_few_args (argv[0]);
- complain_args (locp, w, argc, argv);
+ boundary_set_from_string (&loc.start, argv[2]);
+ boundary_set_from_string (&loc.end, argv[3]);
+ locp = &loc;
}
- 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, true);
+ /* If there were errors, do not generate the output. */
+ yyout = xfopen (complaint_status ? "/dev/null" : *out_namep, "w");
+ *out_linenop = 1;
}
static void
projects / bison.git / blobdiff