X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/7dc4a6940c964d3650fecc6a0c99d8e191517086..bb8e56ff67d289d15f1a4dc7f5e1502cd3bbfc24:/src/scan-skel.l?ds=inline
diff --git a/src/scan-skel.l b/src/scan-skel.l
index 6ef53511..9854727d 100644
--- a/src/scan-skel.l
+++ b/src/scan-skel.l
@@ -1,7 +1,6 @@
/* Scan Bison Skeletons. -*- C -*-
- Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software
- Foundation, Inc.
+ Copyright (C) 2001-2012 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
@@ -18,7 +17,7 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see . */
-%option nodefault noyywrap nounput never-interactive debug
+%option nodefault noyywrap noinput nounput never-interactive debug
%option prefix="skel_" outfile="lex.yy.c"
%{
@@ -28,25 +27,21 @@
#define skel_wrap() 1
#define FLEX_PREFIX(Id) skel_ ## Id
-#include "flex-scanner.h"
+#include
#include
#include
#include
-#include "complain.h"
-#include "getargs.h"
-#include "files.h"
-#include "scan-skel.h"
+#include
+#include
+#include
+#include
#define YY_DECL static int skel_lex (void)
YY_DECL;
-#define QPUTS(String) \
- fputs (quotearg_style (c_quoting_style, String), yyout)
-
-static void at_directive_perform (int at_directive_argc,
- char *at_directive_argv[],
+static void at_directive_perform (int argc, char *argv[],
char **outnamep, int *out_linenop);
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);
@@ -59,39 +54,37 @@ static void fail_for_invalid_at (char const *at);
%%
%{
- int out_lineno IF_LINT (= 0);
+ int out_lineno PACIFY_CC (= 0);
char *outname = 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. at_directive_argv[0] is the directive name. */
- #define AT_DIRECTIVE_ARGC_MAX 8
- int at_directive_argc = 0;
- char *at_directive_argv[AT_DIRECTIVE_ARGC_MAX];
+ can't take more than 7. argv[0] is the directive name. */
+ #define ARGC_MAX 8
+ int argc = 0;
+ char *argv[ARGC_MAX];
%}
"@@" fputc ('@', yyout);
"@{" fputc ('[', yyout);
"@}" fputc (']', yyout);
-"@`" /* Emtpy. Used by b4_cat in ../data/bison.m4. */
-@\n /* Likewise. */
+"@`" continue; /* Used by b4_cat in ../data/bison.m4. */
+@\n continue;
"@oline@" fprintf (yyout, "%d", out_lineno + 1);
-"@ofile@" QPUTS (outname);
-"@dir_prefix@" QPUTS (dir_prefix);
+"@ofile@" fputs (quotearg_style (c_quoting_style, outname), yyout);
@[a-z_]+"(" {
yytext[yyleng-1] = '\0';
obstack_grow (&obstack_for_string, yytext, yyleng);
- at_directive_argv[at_directive_argc++] =
- obstack_finish (&obstack_for_string);
+ argv[argc++] = obstack_finish (&obstack_for_string);
BEGIN SC_AT_DIRECTIVE_ARGS;
}
/* This pattern must not match more than the previous @ patterns. */
@[^@{}`(\n]* fail_for_invalid_at (yytext);
-\n out_lineno++; ECHO;
-[^@\n]+ ECHO;
+\n out_lineno++; ECHO;
+[^@\n]+ ECHO;
<> {
if (outname)
@@ -102,49 +95,46 @@ static void fail_for_invalid_at (char const *at);
return EOF;
}
-{
- [^@]+ { STRING_GROW; }
+
+{
+ [^@]+ STRING_GROW;
- "@@" { obstack_1grow (&obstack_for_string, '@'); }
- "@{" { obstack_1grow (&obstack_for_string, '['); }
- "@}" { obstack_1grow (&obstack_for_string, ']'); }
- "@`" /* Emtpy. Useful for starting an argument
- that begins with whitespace. */
- @\n /* Empty. */
+ "@@" obstack_1grow (&obstack_for_string, '@');
+ "@{" obstack_1grow (&obstack_for_string, '[');
+ "@}" obstack_1grow (&obstack_for_string, ']');
+ "@`" continue; /* For starting an argument that begins with whitespace. */
+ @\n continue;
@[,)] {
- if (at_directive_argc >= AT_DIRECTIVE_ARGC_MAX)
- fail_for_at_directive_too_many_args (at_directive_argv[0]);
+ if (argc >= ARGC_MAX)
+ fail_for_at_directive_too_many_args (argv[0]);
- obstack_1grow (&obstack_for_string, '\0');
- at_directive_argv[at_directive_argc++] =
- obstack_finish (&obstack_for_string);
+ argv[argc++] = obstack_finish0 (&obstack_for_string);
/* Like M4, skip whitespace after a comma. */
if (yytext[1] == ',')
BEGIN SC_AT_DIRECTIVE_SKIP_WS;
else
{
- at_directive_perform (at_directive_argc, at_directive_argv,
- &outname, &out_lineno);
- obstack_free (&obstack_for_string, at_directive_argv[0]);
- at_directive_argc = 0;
+ at_directive_perform (argc, argv, &outname, &out_lineno);
+ obstack_free (&obstack_for_string, argv[0]);
+ argc = 0;
BEGIN INITIAL;
}
}
- @.? { fail_for_invalid_at (yytext); }
+ @.? fail_for_invalid_at (yytext);
}
-{
- [ \t\r\n]
- . { yyless (0); BEGIN SC_AT_DIRECTIVE_ARGS; }
+
+{
+ [ \t\r\n] continue;
+ . yyless (0); BEGIN SC_AT_DIRECTIVE_ARGS;
}
-{
- <> {
- fatal (_("unclosed %s directive in skeleton"), at_directive_argv[0]);
- }
+
+{
+ <> complain (NULL, fatal, _("unclosed %s directive in skeleton"), argv[0]);
}
%%
@@ -175,132 +165,121 @@ skel_scanner_free (void)
yylex_destroy ();
}
-static
-void at_directive_perform (int at_directive_argc,
- char *at_directive_argv[],
- char **outnamep, int *out_linenop)
+static inline warnings
+flag (const char *arg)
{
- if (0 == strcmp (at_directive_argv[0], "@basename"))
+ switch (arg[1])
{
- if (at_directive_argc > 2)
- fail_for_at_directive_too_many_args (at_directive_argv[0]);
- fputs (last_component (at_directive_argv[1]), yyout);
+ case 'w': return Wother;
+ case 'c': return complaint;
+ case 'f': return fatal;
+ default: aver (false); break;
}
- else if (0 == strcmp (at_directive_argv[0], "@warn")
- || 0 == strcmp (at_directive_argv[0], "@complain")
- || 0 == strcmp (at_directive_argv[0], "@fatal"))
+}
+
+static void
+at_directive_perform (int argc, char *argv[], char **outnamep, int *out_linenop)
+{
+ if (STREQ (argv[0], "@basename"))
{
- void (*func)(char const *, ...);
- switch (at_directive_argv[0][1])
- {
- case 'w': func = warn; break;
- case 'c': func = complain; break;
- case 'f': func = fatal; break;
- default: aver (false); break;
- }
- switch (at_directive_argc)
+ 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], "@complain")
+ || STREQ (argv[0], "@fatal"))
+ {
+ warnings w = flag (argv[0]);
+ switch (argc)
{
case 2:
- func (_(at_directive_argv[1]));
+ complain (NULL, w, "%s", _(argv[1]));
break;
case 3:
- func (_(at_directive_argv[1]), at_directive_argv[2]);
+ complain (NULL, w, _(argv[1]), argv[2]);
break;
case 4:
- func (_(at_directive_argv[1]), at_directive_argv[2],
- at_directive_argv[3]);
+ complain (NULL, w, _(argv[1]), argv[2], argv[3]);
break;
case 5:
- func (_(at_directive_argv[1]), at_directive_argv[2],
- at_directive_argv[3], at_directive_argv[4]);
+ complain (NULL, w, _(argv[1]), argv[2], argv[3], argv[4]);
break;
case 6:
- func (_(at_directive_argv[1]), at_directive_argv[2],
- at_directive_argv[3], at_directive_argv[4],
- at_directive_argv[5]);
+ complain (NULL, w, _(argv[1]), argv[2], argv[3], argv[4], argv[5]);
break;
default:
- fail_for_at_directive_too_many_args (at_directive_argv[0]);
+ fail_for_at_directive_too_many_args (argv[0]);
break;
}
}
- else if (0 == strcmp (at_directive_argv[0], "@warn_at")
- || 0 == strcmp (at_directive_argv[0], "@complain_at")
- || 0 == strcmp (at_directive_argv[0], "@fatal_at"))
+ else if (STREQ (argv[0], "@warn_at")
+ || STREQ (argv[0], "@complain_at")
+ || STREQ (argv[0], "@fatal_at"))
{
- void (*func)(location, char const *, ...);
+ warnings w = flag (argv[0]);
location loc;
- if (at_directive_argc < 4)
- fail_for_at_directive_too_few_args (at_directive_argv[0]);
- switch (at_directive_argv[0][1])
- {
- case 'w': func = warn_at; break;
- case 'c': func = complain_at; break;
- case 'f': func = fatal_at; break;
- default: aver (false); break;
- }
- boundary_set_from_string (&loc.start, at_directive_argv[1]);
- boundary_set_from_string (&loc.end, at_directive_argv[2]);
- switch (at_directive_argc)
+ 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]);
+ switch (argc)
{
case 4:
- func (loc, _(at_directive_argv[3]));
+ complain (&loc, w, "%s", _(argv[3]));
break;
case 5:
- func (loc, _(at_directive_argv[3]), at_directive_argv[4]);
+ complain (&loc, w, _(argv[3]), argv[4]);
break;
case 6:
- func (loc, _(at_directive_argv[3]), at_directive_argv[4],
- at_directive_argv[5]);
+ complain (&loc, w, _(argv[3]), argv[4], argv[5]);
break;
case 7:
- func (loc, _(at_directive_argv[3]), at_directive_argv[4],
- at_directive_argv[5], at_directive_argv[6]);
+ complain (&loc, w, _(argv[3]), argv[4], argv[5], argv[6]);
break;
case 8:
- func (loc, _(at_directive_argv[3]), at_directive_argv[4],
- at_directive_argv[5], at_directive_argv[6],
- at_directive_argv[7]);
+ complain (&loc, w, _(argv[3]), argv[4], argv[5], argv[6],
+ argv[7]);
break;
default:
- fail_for_at_directive_too_many_args (at_directive_argv[0]);
+ fail_for_at_directive_too_many_args (argv[0]);
break;
}
}
- else if (0 == strcmp (at_directive_argv[0], "@output"))
+ else if (STREQ (argv[0], "@output"))
{
- if (at_directive_argc > 2)
- fail_for_at_directive_too_many_args (at_directive_argv[0]);
+ if (argc > 2)
+ fail_for_at_directive_too_many_args (argv[0]);
if (*outnamep)
{
free (*outnamep);
xfclose (yyout);
}
- *outnamep = xstrdup (at_directive_argv[1]);
- output_file_name_check (*outnamep);
+ *outnamep = xstrdup (argv[1]);
+ output_file_name_check (outnamep);
yyout = xfopen (*outnamep, "w");
*out_linenop = 1;
}
else
- fail_for_invalid_at (at_directive_argv[0]);
+ fail_for_invalid_at (argv[0]);
}
static void
fail_for_at_directive_too_few_args (char const *at_directive_name)
{
- fatal (_("too few arguments for %s directive in skeleton"),
- at_directive_name);
+ complain (NULL, fatal, _("too few arguments for %s directive in skeleton"),
+ at_directive_name);
}
static void
fail_for_at_directive_too_many_args (char const *at_directive_name)
{
- fatal (_("too many arguments for %s directive in skeleton"),
- at_directive_name);
+ complain (NULL, fatal, _("too many arguments for %s directive in skeleton"),
+ at_directive_name);
}
static void
fail_for_invalid_at (char const *at)
{
- fatal ("invalid @ in skeleton: %s", at);
+ complain (NULL, fatal, "invalid @ in skeleton: %s", at);
}