X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/4d24ffb75ebfc7c4fae027e23132c6d3630998b5..0505df0cbae4065b17f3fb6953c68f87217e7ea2:/src/scan-skel.l?ds=sidebyside diff --git a/src/scan-skel.l b/src/scan-skel.l index 862b34fd..662a00b2 100644 --- a/src/scan-skel.l +++ b/src/scan-skel.l @@ -1,6 +1,6 @@ /* Scan Bison Skeletons. -*- C -*- - Copyright (C) 2001-2007, 2009-2012 Free Software Foundation, Inc. + Copyright (C) 2001-2012 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. @@ -27,25 +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); @@ -61,12 +57,12 @@ static void fail_for_invalid_at (char const *at); 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]; + /* 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]; %} "@@" fputc ('@', yyout); @@ -76,22 +72,21 @@ static void fail_for_invalid_at (char const *at); @\n continue; "@oline@" fprintf (yyout, "%d", out_lineno + 1); -"@ofile@" QPUTS (outname); +"@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]* fail_for_invalid_at (yytext); +\n out_lineno++; ECHO; +[^@\n]+ ECHO; -<> { +<> { if (outname) { free (outname); @@ -111,22 +106,19 @@ static void fail_for_invalid_at (char const *at); @\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; } } @@ -137,14 +129,12 @@ static void fail_for_invalid_at (char const *at); { [ \t\r\n] continue; - . { yyless (0); BEGIN SC_AT_DIRECTIVE_ARGS; } + . 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 +165,78 @@ skel_scanner_free (void) yylex_destroy (); } +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")) + return complaint; + else if (STREQ (arg, "fatal")) + return fatal; + else + aver (false); +} + static void -at_directive_perform (int at_directive_argc, - char *at_directive_argv[], - char **outnamep, int *out_linenop) +at_directive_perform (int argc, char *argv[], char **outnamep, int *out_linenop) { - if (0 == strcmp (at_directive_argv[0], "@basename")) - { - if (at_directive_argc > 2) - fail_for_at_directive_too_many_args (at_directive_argv[0]); - fputs (last_component (at_directive_argv[1]), yyout); - } - else if (0 == strcmp (at_directive_argv[0], "@warn") - || 0 == strcmp (at_directive_argv[0], "@complain") - || 0 == strcmp (at_directive_argv[0], "@fatal")) + 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) - { - case 2: - func (_(at_directive_argv[1])); - break; - case 3: - func (_(at_directive_argv[1]), at_directive_argv[2]); - break; - case 4: - func (_(at_directive_argv[1]), at_directive_argv[2], - at_directive_argv[3]); - break; - case 5: - func (_(at_directive_argv[1]), at_directive_argv[2], - at_directive_argv[3], at_directive_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]); - break; - default: - fail_for_at_directive_too_many_args (at_directive_argv[0]); - break; - } + if (argc > 2) + fail_for_at_directive_too_many_args (argv[0]); + fputs (last_component (argv[1]), yyout); } - 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], "@complain")) { - void (*func)(location, char const *, ...); + if (argc < 4) + fail_for_at_directive_too_few_args (argv[0]); + warnings w = flag (argv[1]); 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) + location *locp = NULL; + if (argv[2] && argv[2][0]) { - case 4: - func (loc, _(at_directive_argv[3])); - break; - case 5: - func (loc, _(at_directive_argv[3]), at_directive_argv[4]); - break; - case 6: - func (loc, _(at_directive_argv[3]), at_directive_argv[4], - at_directive_argv[5]); - break; - case 7: - func (loc, _(at_directive_argv[3]), at_directive_argv[4], - at_directive_argv[5], at_directive_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]); - break; - default: - fail_for_at_directive_too_many_args (at_directive_argv[0]); - break; + boundary_set_from_string (&loc.start, argv[2]); + boundary_set_from_string (&loc.end, argv[3]); + locp = &loc; } + complain_args (locp, w, argc - 3, argv + 3); } - 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]); + *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); }