84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
1864 lines
49 KiB
C
1864 lines
49 KiB
C
/* $NetBSD: main.c,v 1.4 2013/04/06 14:27:52 christos Exp $ */
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/* flex - tool to generate fast lexical analyzers */
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/* Copyright (c) 1990 The Regents of the University of California. */
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/* All rights reserved. */
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/* This code is derived from software contributed to Berkeley by */
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/* Vern Paxson. */
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/* The United States Government has rights in this work pursuant */
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/* to contract no. DE-AC03-76SF00098 between the United States */
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/* Department of Energy and the University of California. */
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/* This file is part of flex. */
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/* Redistribution and use in source and binary forms, with or without */
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/* modification, are permitted provided that the following conditions */
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/* are met: */
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/* 1. Redistributions of source code must retain the above copyright */
|
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/* notice, this list of conditions and the following disclaimer. */
|
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/* 2. Redistributions in binary form must reproduce the above copyright */
|
||
/* notice, this list of conditions and the following disclaimer in the */
|
||
/* documentation and/or other materials provided with the distribution. */
|
||
|
||
/* Neither the name of the University nor the names of its contributors */
|
||
/* may be used to endorse or promote products derived from this software */
|
||
/* without specific prior written permission. */
|
||
|
||
/* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR */
|
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/* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED */
|
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/* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR */
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/* PURPOSE. */
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#include "flexdef.h"
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#include "version.h"
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#include "options.h"
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#include "tables.h"
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static char flex_version[] = FLEX_VERSION;
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|
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/* declare functions that have forward references */
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||
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||
void flexinit PROTO ((int, char **));
|
||
void readin PROTO ((void));
|
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void set_up_initial_allocations PROTO ((void));
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static char *basename2 PROTO ((char *path, int should_strip_ext));
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||
|
||
|
||
/* these globals are all defined and commented in flexdef.h */
|
||
int printstats, syntaxerror, eofseen, ddebug, trace, nowarn, spprdflt;
|
||
int interactive, lex_compat, posix_compat, do_yylineno,
|
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useecs, fulltbl, usemecs;
|
||
int fullspd, gen_line_dirs, performance_report, backing_up_report;
|
||
int C_plus_plus, long_align, use_read, yytext_is_array, do_yywrap,
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||
csize;
|
||
int reentrant, bison_bridge_lval, bison_bridge_lloc;
|
||
int yymore_used, reject, real_reject, continued_action, in_rule;
|
||
int yymore_really_used, reject_really_used;
|
||
int datapos, dataline, linenum;
|
||
FILE *skelfile = NULL;
|
||
int skel_ind = 0;
|
||
char *action_array;
|
||
int action_size, defs1_offset, prolog_offset, action_offset,
|
||
action_index;
|
||
char *infilename = NULL, *outfilename = NULL, *headerfilename = NULL;
|
||
int did_outfilename;
|
||
char *prefix, *yyclass, *extra_type = NULL;
|
||
int do_stdinit, use_stdout;
|
||
int onestate[ONE_STACK_SIZE], onesym[ONE_STACK_SIZE];
|
||
int onenext[ONE_STACK_SIZE], onedef[ONE_STACK_SIZE], onesp;
|
||
int maximum_mns, current_mns, current_max_rules;
|
||
int num_rules, num_eof_rules, default_rule, lastnfa;
|
||
int *firstst, *lastst, *finalst, *transchar, *trans1, *trans2;
|
||
int *accptnum, *assoc_rule, *state_type;
|
||
int *rule_type, *rule_linenum, *rule_useful;
|
||
int current_state_type;
|
||
int variable_trailing_context_rules;
|
||
int numtemps, numprots, protprev[MSP], protnext[MSP], prottbl[MSP];
|
||
int protcomst[MSP], firstprot, lastprot, protsave[PROT_SAVE_SIZE];
|
||
int numecs, nextecm[CSIZE + 1], ecgroup[CSIZE + 1], nummecs,
|
||
tecfwd[CSIZE + 1];
|
||
int tecbck[CSIZE + 1];
|
||
int lastsc, *scset, *scbol, *scxclu, *sceof;
|
||
int current_max_scs;
|
||
char **scname;
|
||
int current_max_dfa_size, current_max_xpairs;
|
||
int current_max_template_xpairs, current_max_dfas;
|
||
int lastdfa, *nxt, *chk, *tnxt;
|
||
int *base, *def, *nultrans, NUL_ec, tblend, firstfree, **dss, *dfasiz;
|
||
union dfaacc_union *dfaacc;
|
||
int *accsiz, *dhash, numas;
|
||
int numsnpairs, jambase, jamstate;
|
||
int lastccl, *cclmap, *ccllen, *cclng, cclreuse;
|
||
int current_maxccls, current_max_ccl_tbl_size;
|
||
Char *ccltbl;
|
||
char nmstr[MAXLINE];
|
||
int sectnum, nummt, hshcol, dfaeql, numeps, eps2, num_reallocs;
|
||
int tmpuses, totnst, peakpairs, numuniq, numdup, hshsave;
|
||
int num_backing_up, bol_needed;
|
||
FILE *backing_up_file;
|
||
int end_of_buffer_state;
|
||
char **input_files;
|
||
int num_input_files;
|
||
jmp_buf flex_main_jmp_buf;
|
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bool *rule_has_nl, *ccl_has_nl;
|
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int nlch = '\n';
|
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bool ansi_func_defs, ansi_func_protos;
|
||
|
||
bool tablesext, tablesverify, gentables;
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char *tablesfilename=0,*tablesname=0;
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struct yytbl_writer tableswr;
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||
|
||
/* Make sure program_name is initialized so we don't crash if writing
|
||
* out an error message before getting the program name from argv[0].
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||
*/
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char *program_name = "flex";
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||
|
||
#ifndef SHORT_FILE_NAMES
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||
static const char outfile_template[] = "lex.%s.%s";
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static const char backing_name[] = "lex.backup";
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||
static const char tablesfile_template[] = "lex.%s.tables";
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#else
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static const char outfile_template[] = "lex%s.%s";
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static const char backing_name[] = "lex.bck";
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||
static const char tablesfile_template[] = "lex%s.tbl";
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||
#endif
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||
|
||
#ifdef MS_DOS
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extern unsigned _stklen = 16384;
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||
#endif
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||
|
||
/* From scan.l */
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extern FILE* yyout;
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static char outfile_path[MAXLINE];
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static int outfile_created = 0;
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static char *skelname = NULL;
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static int _stdout_closed = 0; /* flag to prevent double-fclose() on stdout. */
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||
const char *escaped_qstart = "[[]]M4_YY_NOOP[M4_YY_NOOP[M4_YY_NOOP[[]]";
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||
const char *escaped_qend = "[[]]M4_YY_NOOP]M4_YY_NOOP]M4_YY_NOOP[[]]";
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||
|
||
/* For debugging. The max number of filters to apply to skeleton. */
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||
static int preproc_level = 1000;
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||
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int flex_main PROTO ((int argc, char *argv[]));
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int main PROTO ((int argc, char *argv[]));
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||
|
||
int flex_main (argc, argv)
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||
int argc;
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||
char *argv[];
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{
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int i, exit_status, child_status;
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/* Set a longjmp target. Yes, I know it's a hack, but it gets worse: The
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* return value of setjmp, if non-zero, is the desired exit code PLUS ONE.
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* For example, if you want 'main' to return with code '2', then call
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* longjmp() with an argument of 3. This is because it is invalid to
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* specify a value of 0 to longjmp. FLEX_EXIT(n) should be used instead of
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||
* exit(n);
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||
*/
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exit_status = setjmp (flex_main_jmp_buf);
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if (exit_status){
|
||
if (stdout && !_stdout_closed && !ferror(stdout)){
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fflush(stdout);
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fclose(stdout);
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||
}
|
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while (wait(&child_status) > 0){
|
||
if (!WIFEXITED (child_status)
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|| WEXITSTATUS (child_status) != 0){
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||
/* report an error of a child
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||
*/
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||
if( exit_status <= 1 )
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exit_status = 2;
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||
}
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}
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return exit_status - 1;
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}
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flexinit (argc, argv);
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readin ();
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ntod ();
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for (i = 1; i <= num_rules; ++i)
|
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if (!rule_useful[i] && i != default_rule)
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line_warning (_("rule cannot be matched"),
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rule_linenum[i]);
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|
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if (spprdflt && !reject && rule_useful[default_rule])
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line_warning (_
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("-s option given but default rule can be matched"),
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rule_linenum[default_rule]);
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|
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/* Generate the C state transition tables from the DFA. */
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make_tables ();
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|
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/* Note, flexend does not return. It exits with its argument
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* as status.
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*/
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flexend (0);
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return 0; /* keep compilers/lint happy */
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}
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|
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/* Wrapper around flex_main, so flex_main can be built as a library. */
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int main (argc, argv)
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int argc;
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char *argv[];
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{
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#if ENABLE_NLS
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#if HAVE_LOCALE_H
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setlocale (LC_MESSAGES, "");
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setlocale (LC_CTYPE, "");
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textdomain (PACKAGE);
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bindtextdomain (PACKAGE, LOCALEDIR);
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#endif
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#endif
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return flex_main (argc, argv);
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}
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|
||
/* check_options - check user-specified options */
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void check_options ()
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{
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int i;
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const char * m4 = NULL;
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if (lex_compat) {
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if (C_plus_plus)
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flexerror (_("Can't use -+ with -l option"));
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if (fulltbl || fullspd)
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flexerror (_("Can't use -f or -F with -l option"));
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if (reentrant || bison_bridge_lval)
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flexerror (_
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("Can't use --reentrant or --bison-bridge with -l option"));
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|
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/* Don't rely on detecting use of yymore() and REJECT,
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* just assume they'll be used.
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*/
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yymore_really_used = reject_really_used = true;
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yytext_is_array = true;
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do_yylineno = true;
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use_read = false;
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}
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#if 0
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/* This makes no sense whatsoever. I'm removing it. */
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if (do_yylineno)
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/* This should really be "maintain_backup_tables = true" */
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reject_really_used = true;
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#endif
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if (csize == unspecified) {
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if ((fulltbl || fullspd) && !useecs)
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csize = DEFAULT_CSIZE;
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else
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csize = CSIZE;
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}
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if (interactive == unspecified) {
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if (fulltbl || fullspd)
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interactive = false;
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else
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interactive = true;
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}
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|
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if (fulltbl || fullspd) {
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if (usemecs)
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flexerror (_
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("-Cf/-CF and -Cm don't make sense together"));
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|
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if (interactive)
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flexerror (_("-Cf/-CF and -I are incompatible"));
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|
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if (lex_compat)
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flexerror (_
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("-Cf/-CF are incompatible with lex-compatibility mode"));
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if (fulltbl && fullspd)
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flexerror (_
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("-Cf and -CF are mutually exclusive"));
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}
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|
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if (C_plus_plus && fullspd)
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flexerror (_("Can't use -+ with -CF option"));
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if (C_plus_plus && yytext_is_array) {
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lwarn (_("%array incompatible with -+ option"));
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yytext_is_array = false;
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}
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|
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if (C_plus_plus && (reentrant))
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flexerror (_("Options -+ and --reentrant are mutually exclusive."));
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|
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if (C_plus_plus && bison_bridge_lval)
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flexerror (_("bison bridge not supported for the C++ scanner."));
|
||
|
||
|
||
if (useecs) { /* Set up doubly-linked equivalence classes. */
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||
/* We loop all the way up to csize, since ecgroup[csize] is
|
||
* the position used for NUL characters.
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||
*/
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||
ecgroup[1] = NIL;
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|
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for (i = 2; i <= csize; ++i) {
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ecgroup[i] = i - 1;
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nextecm[i - 1] = i;
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}
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nextecm[csize] = NIL;
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}
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||
else {
|
||
/* Put everything in its own equivalence class. */
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for (i = 1; i <= csize; ++i) {
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ecgroup[i] = i;
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nextecm[i] = BAD_SUBSCRIPT; /* to catch errors */
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}
|
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}
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|
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if (!ansi_func_defs)
|
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buf_m4_define( &m4defs_buf, "M4_YY_NO_ANSI_FUNC_DEFS", NULL);
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if (!ansi_func_protos)
|
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buf_m4_define( &m4defs_buf, "M4_YY_NO_ANSI_FUNC_PROTOS", NULL);
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|
||
if (extra_type)
|
||
buf_m4_define( &m4defs_buf, "M4_EXTRA_TYPE_DEFS", extra_type);
|
||
|
||
if (!use_stdout) {
|
||
FILE *prev_stdout;
|
||
|
||
if (!did_outfilename) {
|
||
char *suffix;
|
||
|
||
if (C_plus_plus)
|
||
suffix = "cc";
|
||
else
|
||
suffix = "c";
|
||
|
||
snprintf (outfile_path, sizeof(outfile_path), outfile_template,
|
||
prefix, suffix);
|
||
|
||
outfilename = outfile_path;
|
||
}
|
||
|
||
prev_stdout = freopen (outfilename, "w+", stdout);
|
||
|
||
if (prev_stdout == NULL)
|
||
lerrsf (_("could not create %s"), outfilename);
|
||
|
||
outfile_created = 1;
|
||
}
|
||
|
||
|
||
/* Setup the filter chain. */
|
||
output_chain = filter_create_int(NULL, filter_tee_header, headerfilename);
|
||
if ( !(m4 = getenv("M4")))
|
||
m4 = M4;
|
||
filter_create_ext(output_chain, m4, "-P", 0);
|
||
filter_create_int(output_chain, filter_fix_linedirs, NULL);
|
||
|
||
/* For debugging, only run the requested number of filters. */
|
||
if (preproc_level > 0) {
|
||
filter_truncate(output_chain, preproc_level);
|
||
filter_apply_chain(output_chain);
|
||
}
|
||
yyout = stdout;
|
||
|
||
|
||
/* always generate the tablesverify flag. */
|
||
buf_m4_define (&m4defs_buf, "M4_YY_TABLES_VERIFY", tablesverify ? "1" : "0");
|
||
if (tablesext)
|
||
gentables = false;
|
||
|
||
if (tablesverify)
|
||
/* force generation of C tables. */
|
||
gentables = true;
|
||
|
||
|
||
if (tablesext) {
|
||
FILE *tablesout;
|
||
struct yytbl_hdr hdr;
|
||
char *pname = 0;
|
||
int nbytes = 0;
|
||
|
||
buf_m4_define (&m4defs_buf, "M4_YY_TABLES_EXTERNAL", NULL);
|
||
|
||
if (!tablesfilename) {
|
||
nbytes = strlen (prefix) + strlen (tablesfile_template) + 2;
|
||
tablesfilename = pname = (char *) calloc (nbytes, 1);
|
||
snprintf (pname, nbytes, tablesfile_template, prefix);
|
||
}
|
||
|
||
if ((tablesout = fopen (tablesfilename, "w")) == NULL)
|
||
lerrsf (_("could not create %s"), tablesfilename);
|
||
if (pname)
|
||
free (pname);
|
||
tablesfilename = 0;
|
||
|
||
yytbl_writer_init (&tableswr, tablesout);
|
||
|
||
nbytes = strlen (prefix) + strlen ("tables") + 2;
|
||
tablesname = (char *) calloc (nbytes, 1);
|
||
snprintf (tablesname, nbytes, "%stables", prefix);
|
||
yytbl_hdr_init (&hdr, flex_version, tablesname);
|
||
|
||
if (yytbl_hdr_fwrite (&tableswr, &hdr) <= 0)
|
||
flexerror (_("could not write tables header"));
|
||
}
|
||
|
||
if (skelname && (skelfile = fopen (skelname, "r")) == NULL)
|
||
lerrsf (_("can't open skeleton file %s"), skelname);
|
||
|
||
if (reentrant) {
|
||
buf_m4_define (&m4defs_buf, "M4_YY_REENTRANT", NULL);
|
||
if (yytext_is_array)
|
||
buf_m4_define (&m4defs_buf, "M4_YY_TEXT_IS_ARRAY", NULL);
|
||
}
|
||
|
||
if ( bison_bridge_lval)
|
||
buf_m4_define (&m4defs_buf, "M4_YY_BISON_LVAL", NULL);
|
||
|
||
if ( bison_bridge_lloc)
|
||
buf_m4_define (&m4defs_buf, "<M4_YY_BISON_LLOC>", NULL);
|
||
|
||
buf_m4_define(&m4defs_buf, "M4_YY_PREFIX", prefix);
|
||
|
||
if (did_outfilename)
|
||
line_directive_out (stdout, 0);
|
||
|
||
if (do_yylineno)
|
||
buf_m4_define (&m4defs_buf, "M4_YY_USE_LINENO", NULL);
|
||
|
||
/* Create the alignment type. */
|
||
buf_strdefine (&userdef_buf, "YY_INT_ALIGNED",
|
||
long_align ? "long int" : "short int");
|
||
|
||
/* Define the start condition macros. */
|
||
{
|
||
struct Buf tmpbuf;
|
||
buf_init(&tmpbuf, sizeof(char));
|
||
for (i = 1; i <= lastsc; i++) {
|
||
char *str, *fmt = "#define %s %d\n";
|
||
size_t strsz;
|
||
|
||
str = (char*)flex_alloc(strsz = strlen(fmt) + strlen(scname[i]) + (int)(1 + log10(i)) + 2);
|
||
if (!str)
|
||
flexfatal(_("allocation of macro definition failed"));
|
||
snprintf(str, strsz, fmt, scname[i], i - 1);
|
||
buf_strappend(&tmpbuf, str);
|
||
free(str);
|
||
}
|
||
buf_m4_define(&m4defs_buf, "M4_YY_SC_DEFS", tmpbuf.elts);
|
||
buf_destroy(&tmpbuf);
|
||
}
|
||
|
||
/* This is where we begin writing to the file. */
|
||
|
||
/* Dump the %top code. */
|
||
if( top_buf.elts)
|
||
outn((char*) top_buf.elts);
|
||
|
||
/* Dump the m4 definitions. */
|
||
buf_print_strings(&m4defs_buf, stdout);
|
||
m4defs_buf.nelts = 0; /* memory leak here. */
|
||
|
||
/* Place a bogus line directive, it will be fixed in the filter. */
|
||
outn("#line 0 \"M4_YY_OUTFILE_NAME\"\n");
|
||
|
||
/* Dump the user defined preproc directives. */
|
||
if (userdef_buf.elts)
|
||
outn ((char *) (userdef_buf.elts));
|
||
|
||
skelout ();
|
||
/* %% [1.0] */
|
||
}
|
||
|
||
/* flexend - terminate flex
|
||
*
|
||
* note
|
||
* This routine does not return.
|
||
*/
|
||
|
||
void flexend (exit_status)
|
||
int exit_status;
|
||
|
||
{
|
||
static int called_before = -1; /* prevent infinite recursion. */
|
||
int tblsiz;
|
||
|
||
if (++called_before)
|
||
FLEX_EXIT (exit_status);
|
||
|
||
if (skelfile != NULL) {
|
||
if (ferror (skelfile))
|
||
lerrsf (_("input error reading skeleton file %s"),
|
||
skelname);
|
||
|
||
else if (fclose (skelfile))
|
||
lerrsf (_("error closing skeleton file %s"),
|
||
skelname);
|
||
}
|
||
|
||
#if 0
|
||
fprintf (header_out,
|
||
"#ifdef YY_HEADER_EXPORT_START_CONDITIONS\n");
|
||
fprintf (header_out,
|
||
"/* Beware! Start conditions are not prefixed. */\n");
|
||
|
||
/* Special case for "INITIAL" */
|
||
fprintf (header_out,
|
||
"#undef INITIAL\n#define INITIAL 0\n");
|
||
for (i = 2; i <= lastsc; i++)
|
||
fprintf (header_out, "#define %s %d\n", scname[i], i - 1);
|
||
fprintf (header_out,
|
||
"#endif /* YY_HEADER_EXPORT_START_CONDITIONS */\n\n");
|
||
|
||
/* Kill ALL flex-related macros. This is so the user
|
||
* can #include more than one generated header file. */
|
||
fprintf (header_out, "#ifndef YY_HEADER_NO_UNDEFS\n");
|
||
fprintf (header_out,
|
||
"/* Undefine all internal macros, etc., that do no belong in the header. */\n\n");
|
||
|
||
{
|
||
const char * undef_list[] = {
|
||
|
||
"BEGIN",
|
||
"ECHO",
|
||
"EOB_ACT_CONTINUE_SCAN",
|
||
"EOB_ACT_END_OF_FILE",
|
||
"EOB_ACT_LAST_MATCH",
|
||
"FLEX_SCANNER",
|
||
"FLEX_STD",
|
||
"REJECT",
|
||
"YYFARGS0",
|
||
"YYFARGS1",
|
||
"YYFARGS2",
|
||
"YYFARGS3",
|
||
"YYLMAX",
|
||
"YYSTATE",
|
||
"YY_AT_BOL",
|
||
"YY_BREAK",
|
||
"YY_BUFFER_EOF_PENDING",
|
||
"YY_BUFFER_NEW",
|
||
"YY_BUFFER_NORMAL",
|
||
"YY_BUF_SIZE",
|
||
"M4_YY_CALL_LAST_ARG",
|
||
"M4_YY_CALL_ONLY_ARG",
|
||
"YY_CURRENT_BUFFER",
|
||
"YY_DECL",
|
||
"M4_YY_DECL_LAST_ARG",
|
||
"M4_YY_DEF_LAST_ARG",
|
||
"M4_YY_DEF_ONLY_ARG",
|
||
"YY_DO_BEFORE_ACTION",
|
||
"YY_END_OF_BUFFER",
|
||
"YY_END_OF_BUFFER_CHAR",
|
||
"YY_EXIT_FAILURE",
|
||
"YY_EXTRA_TYPE",
|
||
"YY_FATAL_ERROR",
|
||
"YY_FLEX_DEFINED_ECHO",
|
||
"YY_FLEX_LEX_COMPAT",
|
||
"YY_FLEX_MAJOR_VERSION",
|
||
"YY_FLEX_MINOR_VERSION",
|
||
"YY_FLEX_SUBMINOR_VERSION",
|
||
"YY_FLUSH_BUFFER",
|
||
"YY_G",
|
||
"YY_INPUT",
|
||
"YY_INTERACTIVE",
|
||
"YY_INT_ALIGNED",
|
||
"YY_LAST_ARG",
|
||
"YY_LESS_LINENO",
|
||
"YY_LEX_ARGS",
|
||
"YY_LEX_DECLARATION",
|
||
"YY_LEX_PROTO",
|
||
"YY_MAIN",
|
||
"YY_MORE_ADJ",
|
||
"YY_NEED_STRLEN",
|
||
"YY_NEW_FILE",
|
||
"YY_NULL",
|
||
"YY_NUM_RULES",
|
||
"YY_ONLY_ARG",
|
||
"YY_PARAMS",
|
||
"YY_PROTO",
|
||
"M4_YY_PROTO_LAST_ARG",
|
||
"M4_YY_PROTO_ONLY_ARG void",
|
||
"YY_READ_BUF_SIZE",
|
||
"YY_REENTRANT",
|
||
"YY_RESTORE_YY_MORE_OFFSET",
|
||
"YY_RULE_SETUP",
|
||
"YY_SC_TO_UI",
|
||
"YY_SKIP_YYWRAP",
|
||
"YY_START",
|
||
"YY_START_STACK_INCR",
|
||
"YY_STATE_EOF",
|
||
"YY_STDINIT",
|
||
"YY_TRAILING_HEAD_MASK",
|
||
"YY_TRAILING_MASK",
|
||
"YY_USER_ACTION",
|
||
"YY_USE_CONST",
|
||
"YY_USE_PROTOS",
|
||
"unput",
|
||
"yyTABLES_NAME",
|
||
"yy_create_buffer",
|
||
"yy_delete_buffer",
|
||
"yy_flex_debug",
|
||
"yy_flush_buffer",
|
||
"yy_init_buffer",
|
||
"yy_load_buffer_state",
|
||
"yy_new_buffer",
|
||
"yy_scan_buffer",
|
||
"yy_scan_bytes",
|
||
"yy_scan_string",
|
||
"yy_set_bol",
|
||
"yy_set_interactive",
|
||
"yy_switch_to_buffer",
|
||
"yypush_buffer_state",
|
||
"yypop_buffer_state",
|
||
"yyensure_buffer_stack",
|
||
"yyalloc",
|
||
"yyconst",
|
||
"yyextra",
|
||
"yyfree",
|
||
"yyget_debug",
|
||
"yyget_extra",
|
||
"yyget_in",
|
||
"yyget_leng",
|
||
"yyget_lineno",
|
||
"yyget_lloc",
|
||
"yyget_lval",
|
||
"yyget_out",
|
||
"yyget_text",
|
||
"yyin",
|
||
"yyleng",
|
||
"yyless",
|
||
"yylex",
|
||
"yylex_destroy",
|
||
"yylex_init",
|
||
"yylex_init_extra",
|
||
"yylineno",
|
||
"yylloc",
|
||
"yylval",
|
||
"yymore",
|
||
"yyout",
|
||
"yyrealloc",
|
||
"yyrestart",
|
||
"yyset_debug",
|
||
"yyset_extra",
|
||
"yyset_in",
|
||
"yyset_lineno",
|
||
"yyset_lloc",
|
||
"yyset_lval",
|
||
"yyset_out",
|
||
"yytables_destroy",
|
||
"yytables_fload",
|
||
"yyterminate",
|
||
"yytext",
|
||
"yytext_ptr",
|
||
"yywrap",
|
||
|
||
/* must be null-terminated */
|
||
NULL};
|
||
|
||
|
||
for (i=0; undef_list[i] != NULL; i++)
|
||
fprintf (header_out, "#undef %s\n", undef_list[i]);
|
||
}
|
||
|
||
/* undef any of the auto-generated symbols. */
|
||
for (i = 0; i < defs_buf.nelts; i++) {
|
||
|
||
/* don't undef start conditions */
|
||
if (sclookup (((char **) defs_buf.elts)[i]) > 0)
|
||
continue;
|
||
fprintf (header_out, "#undef %s\n",
|
||
((char **) defs_buf.elts)[i]);
|
||
}
|
||
|
||
fprintf (header_out,
|
||
"#endif /* !YY_HEADER_NO_UNDEFS */\n");
|
||
fprintf (header_out, "\n");
|
||
fprintf (header_out, "#undef %sIN_HEADER\n", prefix);
|
||
fprintf (header_out, "#endif /* %sHEADER_H */\n", prefix);
|
||
|
||
if (ferror (header_out))
|
||
lerrsf (_("error creating header file %s"),
|
||
headerfilename);
|
||
fflush (header_out);
|
||
fclose (header_out);
|
||
#endif
|
||
|
||
if (exit_status != 0 && outfile_created) {
|
||
if (ferror (stdout))
|
||
lerrsf (_("error writing output file %s"),
|
||
outfilename);
|
||
|
||
else if ((_stdout_closed = 1) && fclose (stdout))
|
||
lerrsf (_("error closing output file %s"),
|
||
outfilename);
|
||
|
||
else if (unlink (outfilename))
|
||
lerrsf (_("error deleting output file %s"),
|
||
outfilename);
|
||
}
|
||
|
||
|
||
if (backing_up_report && backing_up_file) {
|
||
if (num_backing_up == 0)
|
||
fprintf (backing_up_file, _("No backing up.\n"));
|
||
else if (fullspd || fulltbl)
|
||
fprintf (backing_up_file,
|
||
_
|
||
("%d backing up (non-accepting) states.\n"),
|
||
num_backing_up);
|
||
else
|
||
fprintf (backing_up_file,
|
||
_("Compressed tables always back up.\n"));
|
||
|
||
if (ferror (backing_up_file))
|
||
lerrsf (_("error writing backup file %s"),
|
||
backing_name);
|
||
|
||
else if (fclose (backing_up_file))
|
||
lerrsf (_("error closing backup file %s"),
|
||
backing_name);
|
||
}
|
||
|
||
if (printstats) {
|
||
fprintf (stderr, _("%s version %s usage statistics:\n"),
|
||
program_name, flex_version);
|
||
|
||
fprintf (stderr, _(" scanner options: -"));
|
||
|
||
if (C_plus_plus)
|
||
putc ('+', stderr);
|
||
if (backing_up_report)
|
||
putc ('b', stderr);
|
||
if (ddebug)
|
||
putc ('d', stderr);
|
||
if (sf_case_ins())
|
||
putc ('i', stderr);
|
||
if (lex_compat)
|
||
putc ('l', stderr);
|
||
if (posix_compat)
|
||
putc ('X', stderr);
|
||
if (performance_report > 0)
|
||
putc ('p', stderr);
|
||
if (performance_report > 1)
|
||
putc ('p', stderr);
|
||
if (spprdflt)
|
||
putc ('s', stderr);
|
||
if (reentrant)
|
||
fputs ("--reentrant", stderr);
|
||
if (bison_bridge_lval)
|
||
fputs ("--bison-bridge", stderr);
|
||
if (bison_bridge_lloc)
|
||
fputs ("--bison-locations", stderr);
|
||
if (use_stdout)
|
||
putc ('t', stderr);
|
||
if (printstats)
|
||
putc ('v', stderr); /* always true! */
|
||
if (nowarn)
|
||
putc ('w', stderr);
|
||
if (interactive == false)
|
||
putc ('B', stderr);
|
||
if (interactive == true)
|
||
putc ('I', stderr);
|
||
if (!gen_line_dirs)
|
||
putc ('L', stderr);
|
||
if (trace)
|
||
putc ('T', stderr);
|
||
|
||
if (csize == unspecified)
|
||
/* We encountered an error fairly early on, so csize
|
||
* never got specified. Define it now, to prevent
|
||
* bogus table sizes being written out below.
|
||
*/
|
||
csize = 256;
|
||
|
||
if (csize == 128)
|
||
putc ('7', stderr);
|
||
else
|
||
putc ('8', stderr);
|
||
|
||
fprintf (stderr, " -C");
|
||
|
||
if (long_align)
|
||
putc ('a', stderr);
|
||
if (fulltbl)
|
||
putc ('f', stderr);
|
||
if (fullspd)
|
||
putc ('F', stderr);
|
||
if (useecs)
|
||
putc ('e', stderr);
|
||
if (usemecs)
|
||
putc ('m', stderr);
|
||
if (use_read)
|
||
putc ('r', stderr);
|
||
|
||
if (did_outfilename)
|
||
fprintf (stderr, " -o%s", outfilename);
|
||
|
||
if (skelname)
|
||
fprintf (stderr, " -S%s", skelname);
|
||
|
||
if (strcmp (prefix, "yy"))
|
||
fprintf (stderr, " -P%s", prefix);
|
||
|
||
putc ('\n', stderr);
|
||
|
||
fprintf (stderr, _(" %d/%d NFA states\n"),
|
||
lastnfa, current_mns);
|
||
fprintf (stderr, _(" %d/%d DFA states (%d words)\n"),
|
||
lastdfa, current_max_dfas, totnst);
|
||
fprintf (stderr, _(" %d rules\n"),
|
||
num_rules + num_eof_rules -
|
||
1 /* - 1 for def. rule */ );
|
||
|
||
if (num_backing_up == 0)
|
||
fprintf (stderr, _(" No backing up\n"));
|
||
else if (fullspd || fulltbl)
|
||
fprintf (stderr,
|
||
_
|
||
(" %d backing-up (non-accepting) states\n"),
|
||
num_backing_up);
|
||
else
|
||
fprintf (stderr,
|
||
_
|
||
(" Compressed tables always back-up\n"));
|
||
|
||
if (bol_needed)
|
||
fprintf (stderr,
|
||
_(" Beginning-of-line patterns used\n"));
|
||
|
||
fprintf (stderr, _(" %d/%d start conditions\n"), lastsc,
|
||
current_max_scs);
|
||
fprintf (stderr,
|
||
_
|
||
(" %d epsilon states, %d double epsilon states\n"),
|
||
numeps, eps2);
|
||
|
||
if (lastccl == 0)
|
||
fprintf (stderr, _(" no character classes\n"));
|
||
else
|
||
fprintf (stderr,
|
||
_
|
||
(" %d/%d character classes needed %d/%d words of storage, %d reused\n"),
|
||
lastccl, current_maxccls,
|
||
cclmap[lastccl] + ccllen[lastccl],
|
||
current_max_ccl_tbl_size, cclreuse);
|
||
|
||
fprintf (stderr, _(" %d state/nextstate pairs created\n"),
|
||
numsnpairs);
|
||
fprintf (stderr,
|
||
_(" %d/%d unique/duplicate transitions\n"),
|
||
numuniq, numdup);
|
||
|
||
if (fulltbl) {
|
||
tblsiz = lastdfa * numecs;
|
||
fprintf (stderr, _(" %d table entries\n"),
|
||
tblsiz);
|
||
}
|
||
|
||
else {
|
||
tblsiz = 2 * (lastdfa + numtemps) + 2 * tblend;
|
||
|
||
fprintf (stderr,
|
||
_(" %d/%d base-def entries created\n"),
|
||
lastdfa + numtemps, current_max_dfas);
|
||
fprintf (stderr,
|
||
_
|
||
(" %d/%d (peak %d) nxt-chk entries created\n"),
|
||
tblend, current_max_xpairs, peakpairs);
|
||
fprintf (stderr,
|
||
_
|
||
(" %d/%d (peak %d) template nxt-chk entries created\n"),
|
||
numtemps * nummecs,
|
||
current_max_template_xpairs,
|
||
numtemps * numecs);
|
||
fprintf (stderr, _(" %d empty table entries\n"),
|
||
nummt);
|
||
fprintf (stderr, _(" %d protos created\n"),
|
||
numprots);
|
||
fprintf (stderr,
|
||
_(" %d templates created, %d uses\n"),
|
||
numtemps, tmpuses);
|
||
}
|
||
|
||
if (useecs) {
|
||
tblsiz = tblsiz + csize;
|
||
fprintf (stderr,
|
||
_
|
||
(" %d/%d equivalence classes created\n"),
|
||
numecs, csize);
|
||
}
|
||
|
||
if (usemecs) {
|
||
tblsiz = tblsiz + numecs;
|
||
fprintf (stderr,
|
||
_
|
||
(" %d/%d meta-equivalence classes created\n"),
|
||
nummecs, csize);
|
||
}
|
||
|
||
fprintf (stderr,
|
||
_
|
||
(" %d (%d saved) hash collisions, %d DFAs equal\n"),
|
||
hshcol, hshsave, dfaeql);
|
||
fprintf (stderr, _(" %d sets of reallocations needed\n"),
|
||
num_reallocs);
|
||
fprintf (stderr, _(" %d total table entries needed\n"),
|
||
tblsiz);
|
||
}
|
||
|
||
FLEX_EXIT (exit_status);
|
||
}
|
||
|
||
|
||
/* flexinit - initialize flex */
|
||
|
||
void flexinit (argc, argv)
|
||
int argc;
|
||
char **argv;
|
||
{
|
||
int i, sawcmpflag, rv, optind;
|
||
char *arg;
|
||
scanopt_t sopt;
|
||
|
||
printstats = syntaxerror = trace = spprdflt = false;
|
||
lex_compat = posix_compat = C_plus_plus = backing_up_report =
|
||
ddebug = fulltbl = false;
|
||
fullspd = long_align = nowarn = yymore_used = continued_action =
|
||
false;
|
||
do_yylineno = yytext_is_array = in_rule = reject = do_stdinit =
|
||
false;
|
||
yymore_really_used = reject_really_used = unspecified;
|
||
interactive = csize = unspecified;
|
||
do_yywrap = gen_line_dirs = usemecs = useecs = true;
|
||
reentrant = bison_bridge_lval = bison_bridge_lloc = false;
|
||
performance_report = 0;
|
||
did_outfilename = 0;
|
||
prefix = "yy";
|
||
yyclass = 0;
|
||
use_read = use_stdout = false;
|
||
tablesext = tablesverify = false;
|
||
gentables = true;
|
||
tablesfilename = tablesname = NULL;
|
||
ansi_func_defs = ansi_func_protos = true;
|
||
|
||
sawcmpflag = false;
|
||
|
||
/* Initialize dynamic array for holding the rule actions. */
|
||
action_size = 2048; /* default size of action array in bytes */
|
||
action_array = allocate_character_array (action_size);
|
||
defs1_offset = prolog_offset = action_offset = action_index = 0;
|
||
action_array[0] = '\0';
|
||
|
||
/* Initialize any buffers. */
|
||
buf_init (&userdef_buf, sizeof (char)); /* one long string */
|
||
buf_init (&defs_buf, sizeof (char *)); /* list of strings */
|
||
buf_init (&yydmap_buf, sizeof (char)); /* one long string */
|
||
buf_init (&top_buf, sizeof (char)); /* one long string */
|
||
|
||
{
|
||
const char * m4defs_init_str[] = {"m4_changequote\n",
|
||
"m4_changequote([[, ]])\n"};
|
||
buf_init (&m4defs_buf, sizeof (char *));
|
||
buf_append (&m4defs_buf, &m4defs_init_str, 2);
|
||
}
|
||
|
||
sf_init ();
|
||
|
||
/* initialize regex lib */
|
||
flex_init_regex();
|
||
|
||
/* Enable C++ if program name ends with '+'. */
|
||
program_name = basename2 (argv[0], 0);
|
||
|
||
if (program_name[0] != '\0' &&
|
||
program_name[strlen (program_name) - 1] == '+')
|
||
C_plus_plus = true;
|
||
|
||
/* read flags */
|
||
sopt = scanopt_init (flexopts, argc, argv, 0);
|
||
if (!sopt) {
|
||
/* This will only happen when flexopts array is altered. */
|
||
fprintf (stderr,
|
||
_("Internal error. flexopts are malformed.\n"));
|
||
FLEX_EXIT (1);
|
||
}
|
||
|
||
while ((rv = scanopt (sopt, &arg, &optind)) != 0) {
|
||
|
||
if (rv < 0) {
|
||
/* Scanopt has already printed an option-specific error message. */
|
||
fprintf (stderr,
|
||
_
|
||
("Try `%s --help' for more information.\n"),
|
||
program_name);
|
||
FLEX_EXIT (1);
|
||
}
|
||
|
||
switch ((enum flexopt_flag_t) rv) {
|
||
case OPT_CPLUSPLUS:
|
||
C_plus_plus = true;
|
||
break;
|
||
|
||
case OPT_BATCH:
|
||
interactive = false;
|
||
break;
|
||
|
||
case OPT_BACKUP:
|
||
backing_up_report = true;
|
||
break;
|
||
|
||
case OPT_DONOTHING:
|
||
break;
|
||
|
||
case OPT_COMPRESSION:
|
||
if (!sawcmpflag) {
|
||
useecs = false;
|
||
usemecs = false;
|
||
fulltbl = false;
|
||
sawcmpflag = true;
|
||
}
|
||
|
||
for (i = 0; arg && arg[i] != '\0'; i++)
|
||
switch (arg[i]) {
|
||
case 'a':
|
||
long_align = true;
|
||
break;
|
||
|
||
case 'e':
|
||
useecs = true;
|
||
break;
|
||
|
||
case 'F':
|
||
fullspd = true;
|
||
break;
|
||
|
||
case 'f':
|
||
fulltbl = true;
|
||
break;
|
||
|
||
case 'm':
|
||
usemecs = true;
|
||
break;
|
||
|
||
case 'r':
|
||
use_read = true;
|
||
break;
|
||
|
||
default:
|
||
lerrif (_
|
||
("unknown -C option '%c'"),
|
||
(int) arg[i]);
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case OPT_DEBUG:
|
||
ddebug = true;
|
||
break;
|
||
|
||
case OPT_NO_DEBUG:
|
||
ddebug = false;
|
||
break;
|
||
|
||
case OPT_FULL:
|
||
useecs = usemecs = false;
|
||
use_read = fulltbl = true;
|
||
break;
|
||
|
||
case OPT_FAST:
|
||
useecs = usemecs = false;
|
||
use_read = fullspd = true;
|
||
break;
|
||
|
||
case OPT_HELP:
|
||
usage ();
|
||
FLEX_EXIT (0);
|
||
|
||
case OPT_INTERACTIVE:
|
||
interactive = true;
|
||
break;
|
||
|
||
case OPT_CASE_INSENSITIVE:
|
||
sf_set_case_ins(true);
|
||
break;
|
||
|
||
case OPT_LEX_COMPAT:
|
||
lex_compat = true;
|
||
break;
|
||
|
||
case OPT_POSIX_COMPAT:
|
||
posix_compat = true;
|
||
break;
|
||
|
||
case OPT_PREPROC_LEVEL:
|
||
preproc_level = strtol(arg,NULL,0);
|
||
break;
|
||
|
||
case OPT_MAIN:
|
||
buf_strdefine (&userdef_buf, "YY_MAIN", "1");
|
||
do_yywrap = false;
|
||
break;
|
||
|
||
case OPT_NO_MAIN:
|
||
buf_strdefine (&userdef_buf, "YY_MAIN", "0");
|
||
break;
|
||
|
||
case OPT_NO_LINE:
|
||
gen_line_dirs = false;
|
||
break;
|
||
|
||
case OPT_OUTFILE:
|
||
outfilename = arg;
|
||
did_outfilename = 1;
|
||
break;
|
||
|
||
case OPT_PREFIX:
|
||
prefix = arg;
|
||
break;
|
||
|
||
case OPT_PERF_REPORT:
|
||
++performance_report;
|
||
break;
|
||
|
||
case OPT_BISON_BRIDGE:
|
||
bison_bridge_lval = true;
|
||
break;
|
||
|
||
case OPT_BISON_BRIDGE_LOCATIONS:
|
||
bison_bridge_lval = bison_bridge_lloc = true;
|
||
break;
|
||
|
||
case OPT_REENTRANT:
|
||
reentrant = true;
|
||
break;
|
||
|
||
case OPT_NO_REENTRANT:
|
||
reentrant = false;
|
||
break;
|
||
|
||
case OPT_SKEL:
|
||
skelname = arg;
|
||
break;
|
||
|
||
case OPT_DEFAULT:
|
||
spprdflt = false;
|
||
break;
|
||
|
||
case OPT_NO_DEFAULT:
|
||
spprdflt = true;
|
||
break;
|
||
|
||
case OPT_STDOUT:
|
||
use_stdout = true;
|
||
break;
|
||
|
||
case OPT_NO_UNISTD_H:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_UNISTD_H", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_UNISTD_H",0);
|
||
break;
|
||
|
||
case OPT_TABLES_FILE:
|
||
tablesext = true;
|
||
tablesfilename = arg;
|
||
break;
|
||
|
||
case OPT_TABLES_VERIFY:
|
||
tablesverify = true;
|
||
break;
|
||
|
||
case OPT_TRACE:
|
||
trace = true;
|
||
break;
|
||
|
||
case OPT_VERBOSE:
|
||
printstats = true;
|
||
break;
|
||
|
||
case OPT_VERSION:
|
||
printf (_("%s %s\n"), program_name, flex_version);
|
||
FLEX_EXIT (0);
|
||
|
||
case OPT_WARN:
|
||
nowarn = false;
|
||
break;
|
||
|
||
case OPT_NO_WARN:
|
||
nowarn = true;
|
||
break;
|
||
|
||
case OPT_7BIT:
|
||
csize = 128;
|
||
break;
|
||
|
||
case OPT_8BIT:
|
||
csize = CSIZE;
|
||
break;
|
||
|
||
case OPT_ALIGN:
|
||
long_align = true;
|
||
break;
|
||
|
||
case OPT_NO_ALIGN:
|
||
long_align = false;
|
||
break;
|
||
|
||
case OPT_ALWAYS_INTERACTIVE:
|
||
buf_m4_define (&m4defs_buf, "M4_YY_ALWAYS_INTERACTIVE", 0);
|
||
break;
|
||
|
||
case OPT_NEVER_INTERACTIVE:
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NEVER_INTERACTIVE", 0);
|
||
break;
|
||
|
||
case OPT_ARRAY:
|
||
yytext_is_array = true;
|
||
break;
|
||
|
||
case OPT_POINTER:
|
||
yytext_is_array = false;
|
||
break;
|
||
|
||
case OPT_ECS:
|
||
useecs = true;
|
||
break;
|
||
|
||
case OPT_NO_ECS:
|
||
useecs = false;
|
||
break;
|
||
|
||
case OPT_HEADER_FILE:
|
||
headerfilename = arg;
|
||
break;
|
||
|
||
case OPT_META_ECS:
|
||
usemecs = true;
|
||
break;
|
||
|
||
case OPT_NO_META_ECS:
|
||
usemecs = false;
|
||
break;
|
||
|
||
case OPT_PREPROCDEFINE:
|
||
{
|
||
/* arg is "symbol" or "symbol=definition". */
|
||
char *def;
|
||
|
||
for (def = arg;
|
||
*def != '\0' && *def != '='; ++def) ;
|
||
|
||
buf_strappend (&userdef_buf, "#define ");
|
||
if (*def == '\0') {
|
||
buf_strappend (&userdef_buf, arg);
|
||
buf_strappend (&userdef_buf,
|
||
" 1\n");
|
||
}
|
||
else {
|
||
buf_strnappend (&userdef_buf, arg,
|
||
def - arg);
|
||
buf_strappend (&userdef_buf, " ");
|
||
buf_strappend (&userdef_buf,
|
||
def + 1);
|
||
buf_strappend (&userdef_buf, "\n");
|
||
}
|
||
}
|
||
break;
|
||
|
||
case OPT_READ:
|
||
use_read = true;
|
||
break;
|
||
|
||
case OPT_STACK:
|
||
//buf_strdefine (&userdef_buf, "YY_STACK_USED", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_STACK_USED",0);
|
||
break;
|
||
|
||
case OPT_STDINIT:
|
||
do_stdinit = true;
|
||
break;
|
||
|
||
case OPT_NO_STDINIT:
|
||
do_stdinit = false;
|
||
break;
|
||
|
||
case OPT_YYCLASS:
|
||
yyclass = arg;
|
||
break;
|
||
|
||
case OPT_YYLINENO:
|
||
do_yylineno = true;
|
||
break;
|
||
|
||
case OPT_NO_YYLINENO:
|
||
do_yylineno = false;
|
||
break;
|
||
|
||
case OPT_YYWRAP:
|
||
do_yywrap = true;
|
||
break;
|
||
|
||
case OPT_NO_YYWRAP:
|
||
do_yywrap = false;
|
||
break;
|
||
|
||
case OPT_YYMORE:
|
||
yymore_really_used = true;
|
||
break;
|
||
|
||
case OPT_NO_YYMORE:
|
||
yymore_really_used = false;
|
||
break;
|
||
|
||
case OPT_REJECT:
|
||
reject_really_used = true;
|
||
break;
|
||
|
||
case OPT_NO_REJECT:
|
||
reject_really_used = false;
|
||
break;
|
||
|
||
case OPT_NO_ANSI_FUNC_DEFS:
|
||
ansi_func_defs = false;
|
||
break;
|
||
|
||
case OPT_NO_ANSI_FUNC_PROTOS:
|
||
ansi_func_protos = false;
|
||
break;
|
||
|
||
case OPT_NO_YY_PUSH_STATE:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_PUSH_STATE", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_PUSH_STATE",0);
|
||
break;
|
||
case OPT_NO_YY_POP_STATE:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_POP_STATE", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_POP_STATE",0);
|
||
break;
|
||
case OPT_NO_YY_TOP_STATE:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_TOP_STATE", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_TOP_STATE",0);
|
||
break;
|
||
case OPT_NO_UNPUT:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_UNPUT", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_UNPUT",0);
|
||
break;
|
||
case OPT_NO_YY_SCAN_BUFFER:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_SCAN_BUFFER", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_SCAN_BUFFER",0);
|
||
break;
|
||
case OPT_NO_YY_SCAN_BYTES:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_SCAN_BYTES", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_SCAN_BYTES",0);
|
||
break;
|
||
case OPT_NO_YY_SCAN_STRING:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_SCAN_STRING", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_SCAN_STRING",0);
|
||
break;
|
||
case OPT_NO_YYGET_EXTRA:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_GET_EXTRA", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_GET_EXTRA",0);
|
||
break;
|
||
case OPT_NO_YYSET_EXTRA:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_SET_EXTRA", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_SET_EXTRA",0);
|
||
break;
|
||
case OPT_NO_YYGET_LENG:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_GET_LENG", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_GET_LENG",0);
|
||
break;
|
||
case OPT_NO_YYGET_TEXT:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_GET_TEXT", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_GET_TEXT",0);
|
||
break;
|
||
case OPT_NO_YYGET_LINENO:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_GET_LINENO", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_GET_LINENO",0);
|
||
break;
|
||
case OPT_NO_YYSET_LINENO:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_SET_LINENO", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_SET_LINENO",0);
|
||
break;
|
||
case OPT_NO_YYGET_IN:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_GET_IN", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_GET_IN",0);
|
||
break;
|
||
case OPT_NO_YYSET_IN:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_SET_IN", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_SET_IN",0);
|
||
break;
|
||
case OPT_NO_YYGET_OUT:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_GET_OUT", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_GET_OUT",0);
|
||
break;
|
||
case OPT_NO_YYSET_OUT:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_SET_OUT", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_SET_OUT",0);
|
||
break;
|
||
case OPT_NO_YYGET_LVAL:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_GET_LVAL", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_GET_LVAL",0);
|
||
break;
|
||
case OPT_NO_YYSET_LVAL:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_SET_LVAL", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_SET_LVAL",0);
|
||
break;
|
||
case OPT_NO_YYGET_LLOC:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_GET_LLOC", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_GET_LLOC",0);
|
||
break;
|
||
case OPT_NO_YYSET_LLOC:
|
||
//buf_strdefine (&userdef_buf, "YY_NO_SET_LLOC", "1");
|
||
buf_m4_define( &m4defs_buf, "M4_YY_NO_SET_LLOC",0);
|
||
break;
|
||
|
||
} /* switch */
|
||
} /* while scanopt() */
|
||
|
||
scanopt_destroy (sopt);
|
||
|
||
num_input_files = argc - optind;
|
||
input_files = argv + optind;
|
||
set_input_file (num_input_files > 0 ? input_files[0] : NULL);
|
||
|
||
lastccl = lastsc = lastdfa = lastnfa = 0;
|
||
num_rules = num_eof_rules = default_rule = 0;
|
||
numas = numsnpairs = tmpuses = 0;
|
||
numecs = numeps = eps2 = num_reallocs = hshcol = dfaeql = totnst =
|
||
0;
|
||
numuniq = numdup = hshsave = eofseen = datapos = dataline = 0;
|
||
num_backing_up = onesp = numprots = 0;
|
||
variable_trailing_context_rules = bol_needed = false;
|
||
|
||
linenum = sectnum = 1;
|
||
firstprot = NIL;
|
||
|
||
/* Used in mkprot() so that the first proto goes in slot 1
|
||
* of the proto queue.
|
||
*/
|
||
lastprot = 1;
|
||
|
||
set_up_initial_allocations ();
|
||
}
|
||
|
||
|
||
/* readin - read in the rules section of the input file(s) */
|
||
|
||
void readin ()
|
||
{
|
||
static char yy_stdinit[] = "FILE *yyin = stdin, *yyout = stdout;";
|
||
static char yy_nostdinit[] =
|
||
"FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;";
|
||
|
||
line_directive_out ((FILE *) 0, 1);
|
||
|
||
if (yyparse ()) {
|
||
pinpoint_message (_("fatal parse error"));
|
||
flexend (1);
|
||
}
|
||
|
||
if (syntaxerror)
|
||
flexend (1);
|
||
|
||
/* If the user explicitly requested posix compatibility by specifing the
|
||
* posix-compat option, then we check for conflicting options. However, if
|
||
* the POSIXLY_CORRECT variable is set, then we quietly make flex as
|
||
* posix-compatible as possible. This is the recommended behavior
|
||
* according to the GNU Coding Standards.
|
||
*
|
||
* Note: The posix option was added to flex to provide the posix behavior
|
||
* of the repeat operator in regular expressions, e.g., `ab{3}'
|
||
*/
|
||
if (posix_compat) {
|
||
/* TODO: This is where we try to make flex behave according to
|
||
* posiz, AND check for conflicting options. How far should we go
|
||
* with this? Should we disable all the neat-o flex features?
|
||
*/
|
||
/* Update: Estes says no, since other flex features don't violate posix. */
|
||
}
|
||
|
||
if (getenv ("POSIXLY_CORRECT")) {
|
||
posix_compat = true;
|
||
}
|
||
|
||
if (backing_up_report) {
|
||
backing_up_file = fopen (backing_name, "w");
|
||
if (backing_up_file == NULL)
|
||
lerrsf (_
|
||
("could not create backing-up info file %s"),
|
||
backing_name);
|
||
}
|
||
|
||
else
|
||
backing_up_file = NULL;
|
||
|
||
if (yymore_really_used == true)
|
||
yymore_used = true;
|
||
else if (yymore_really_used == false)
|
||
yymore_used = false;
|
||
|
||
if (reject_really_used == true)
|
||
reject = true;
|
||
else if (reject_really_used == false)
|
||
reject = false;
|
||
|
||
if (performance_report > 0) {
|
||
if (lex_compat) {
|
||
fprintf (stderr,
|
||
_
|
||
("-l AT&T lex compatibility option entails a large performance penalty\n"));
|
||
fprintf (stderr,
|
||
_
|
||
(" and may be the actual source of other reported performance penalties\n"));
|
||
}
|
||
|
||
else if (do_yylineno) {
|
||
fprintf (stderr,
|
||
_
|
||
("%%option yylineno entails a performance penalty ONLY on rules that can match newline characters\n"));
|
||
}
|
||
|
||
if (performance_report > 1) {
|
||
if (interactive)
|
||
fprintf (stderr,
|
||
_
|
||
("-I (interactive) entails a minor performance penalty\n"));
|
||
|
||
if (yymore_used)
|
||
fprintf (stderr,
|
||
_
|
||
("yymore() entails a minor performance penalty\n"));
|
||
}
|
||
|
||
if (reject)
|
||
fprintf (stderr,
|
||
_
|
||
("REJECT entails a large performance penalty\n"));
|
||
|
||
if (variable_trailing_context_rules)
|
||
fprintf (stderr,
|
||
_
|
||
("Variable trailing context rules entail a large performance penalty\n"));
|
||
}
|
||
|
||
if (reject)
|
||
real_reject = true;
|
||
|
||
if (variable_trailing_context_rules)
|
||
reject = true;
|
||
|
||
if ((fulltbl || fullspd) && reject) {
|
||
if (real_reject)
|
||
flexerror (_
|
||
("REJECT cannot be used with -f or -F"));
|
||
else if (do_yylineno)
|
||
flexerror (_
|
||
("%option yylineno cannot be used with REJECT"));
|
||
else
|
||
flexerror (_
|
||
("variable trailing context rules cannot be used with -f or -F"));
|
||
}
|
||
|
||
if (reject){
|
||
out_m4_define( "M4_YY_USES_REJECT", NULL);
|
||
//outn ("\n#define YY_USES_REJECT");
|
||
}
|
||
|
||
if (!do_yywrap) {
|
||
if (!C_plus_plus) {
|
||
if (reentrant)
|
||
outn ("\n#define yywrap(yyscanner) (/*CONSTCOND*/1)");
|
||
else
|
||
outn ("\n#define yywrap() (/*CONSTCOND*/1)");
|
||
}
|
||
outn ("#define YY_SKIP_YYWRAP");
|
||
}
|
||
|
||
if (ddebug)
|
||
outn ("\n#define FLEX_DEBUG");
|
||
|
||
OUT_BEGIN_CODE ();
|
||
if (csize == 256)
|
||
outn ("typedef unsigned char YY_CHAR;");
|
||
else
|
||
outn ("typedef char YY_CHAR;");
|
||
OUT_END_CODE ();
|
||
|
||
if (C_plus_plus) {
|
||
outn ("#define yytext_ptr yytext");
|
||
|
||
if (interactive)
|
||
outn ("#define YY_INTERACTIVE");
|
||
}
|
||
|
||
else {
|
||
OUT_BEGIN_CODE ();
|
||
/* In reentrant scanner, stdinit is handled in flex.skl. */
|
||
if (do_stdinit) {
|
||
if (reentrant){
|
||
outn ("#ifdef VMS");
|
||
outn ("#ifdef __VMS_POSIX");
|
||
outn ("#define YY_STDINIT");
|
||
outn ("#endif");
|
||
outn ("#else");
|
||
outn ("#define YY_STDINIT");
|
||
outn ("#endif");
|
||
}
|
||
|
||
outn ("#ifdef VMS");
|
||
outn ("#ifndef __VMS_POSIX");
|
||
outn (yy_nostdinit);
|
||
outn ("#else");
|
||
outn (yy_stdinit);
|
||
outn ("#endif");
|
||
outn ("#else");
|
||
outn (yy_stdinit);
|
||
outn ("#endif");
|
||
}
|
||
|
||
else {
|
||
if(!reentrant)
|
||
outn (yy_nostdinit);
|
||
}
|
||
OUT_END_CODE ();
|
||
}
|
||
|
||
OUT_BEGIN_CODE ();
|
||
if (fullspd)
|
||
outn ("typedef yyconst struct yy_trans_info *yy_state_type;");
|
||
else if (!C_plus_plus)
|
||
outn ("typedef int yy_state_type;");
|
||
OUT_END_CODE ();
|
||
|
||
if (lex_compat)
|
||
outn ("#define YY_FLEX_LEX_COMPAT");
|
||
|
||
if (!C_plus_plus && !reentrant) {
|
||
outn ("extern int yylineno;");
|
||
OUT_BEGIN_CODE ();
|
||
outn ("int yylineno = 1;");
|
||
OUT_END_CODE ();
|
||
}
|
||
|
||
if (C_plus_plus) {
|
||
outn ("\n#include <FlexLexer.h>");
|
||
|
||
if (!do_yywrap) {
|
||
outn("\nint yyFlexLexer::yywrap() { return 1; }");
|
||
}
|
||
|
||
if (yyclass) {
|
||
outn ("int yyFlexLexer::yylex()");
|
||
outn ("\t{");
|
||
outn ("\tLexerError( \"yyFlexLexer::yylex invoked but %option yyclass used\" );");
|
||
outn ("\treturn 0;");
|
||
outn ("\t}");
|
||
|
||
out_str ("\n#define YY_DECL int %s::yylex()\n",
|
||
yyclass);
|
||
}
|
||
}
|
||
|
||
else {
|
||
|
||
/* Watch out: yytext_ptr is a variable when yytext is an array,
|
||
* but it's a macro when yytext is a pointer.
|
||
*/
|
||
if (yytext_is_array) {
|
||
if (!reentrant)
|
||
outn ("extern char yytext[];\n");
|
||
}
|
||
else {
|
||
if (reentrant) {
|
||
outn ("#define yytext_ptr yytext_r");
|
||
}
|
||
else {
|
||
outn ("extern char *yytext;");
|
||
outn ("#define yytext_ptr yytext");
|
||
}
|
||
}
|
||
|
||
if (yyclass)
|
||
flexerror (_
|
||
("%option yyclass only meaningful for C++ scanners"));
|
||
}
|
||
|
||
if (useecs)
|
||
numecs = cre8ecs (nextecm, ecgroup, csize);
|
||
else
|
||
numecs = csize;
|
||
|
||
/* Now map the equivalence class for NUL to its expected place. */
|
||
ecgroup[0] = ecgroup[csize];
|
||
NUL_ec = ABS (ecgroup[0]);
|
||
|
||
if (useecs)
|
||
ccl2ecl ();
|
||
}
|
||
|
||
|
||
/* set_up_initial_allocations - allocate memory for internal tables */
|
||
|
||
void set_up_initial_allocations ()
|
||
{
|
||
maximum_mns = (long_align ? MAXIMUM_MNS_LONG : MAXIMUM_MNS);
|
||
current_mns = INITIAL_MNS;
|
||
firstst = allocate_integer_array (current_mns);
|
||
lastst = allocate_integer_array (current_mns);
|
||
finalst = allocate_integer_array (current_mns);
|
||
transchar = allocate_integer_array (current_mns);
|
||
trans1 = allocate_integer_array (current_mns);
|
||
trans2 = allocate_integer_array (current_mns);
|
||
accptnum = allocate_integer_array (current_mns);
|
||
assoc_rule = allocate_integer_array (current_mns);
|
||
state_type = allocate_integer_array (current_mns);
|
||
|
||
current_max_rules = INITIAL_MAX_RULES;
|
||
rule_type = allocate_integer_array (current_max_rules);
|
||
rule_linenum = allocate_integer_array (current_max_rules);
|
||
rule_useful = allocate_integer_array (current_max_rules);
|
||
rule_has_nl = allocate_bool_array (current_max_rules);
|
||
|
||
current_max_scs = INITIAL_MAX_SCS;
|
||
scset = allocate_integer_array (current_max_scs);
|
||
scbol = allocate_integer_array (current_max_scs);
|
||
scxclu = allocate_integer_array (current_max_scs);
|
||
sceof = allocate_integer_array (current_max_scs);
|
||
scname = allocate_char_ptr_array (current_max_scs);
|
||
|
||
current_maxccls = INITIAL_MAX_CCLS;
|
||
cclmap = allocate_integer_array (current_maxccls);
|
||
ccllen = allocate_integer_array (current_maxccls);
|
||
cclng = allocate_integer_array (current_maxccls);
|
||
ccl_has_nl = allocate_bool_array (current_maxccls);
|
||
|
||
current_max_ccl_tbl_size = INITIAL_MAX_CCL_TBL_SIZE;
|
||
ccltbl = allocate_Character_array (current_max_ccl_tbl_size);
|
||
|
||
current_max_dfa_size = INITIAL_MAX_DFA_SIZE;
|
||
|
||
current_max_xpairs = INITIAL_MAX_XPAIRS;
|
||
nxt = allocate_integer_array (current_max_xpairs);
|
||
chk = allocate_integer_array (current_max_xpairs);
|
||
|
||
current_max_template_xpairs = INITIAL_MAX_TEMPLATE_XPAIRS;
|
||
tnxt = allocate_integer_array (current_max_template_xpairs);
|
||
|
||
current_max_dfas = INITIAL_MAX_DFAS;
|
||
base = allocate_integer_array (current_max_dfas);
|
||
def = allocate_integer_array (current_max_dfas);
|
||
dfasiz = allocate_integer_array (current_max_dfas);
|
||
accsiz = allocate_integer_array (current_max_dfas);
|
||
dhash = allocate_integer_array (current_max_dfas);
|
||
dss = allocate_int_ptr_array (current_max_dfas);
|
||
dfaacc = allocate_dfaacc_union (current_max_dfas);
|
||
|
||
nultrans = (int *) 0;
|
||
}
|
||
|
||
|
||
/* extracts basename from path, optionally stripping the extension "\.*"
|
||
* (same concept as /bin/sh `basename`, but different handling of extension). */
|
||
static char *basename2 (path, strip_ext)
|
||
char *path;
|
||
int strip_ext; /* boolean */
|
||
{
|
||
char *b, *e = 0;
|
||
|
||
b = path;
|
||
for (b = path; *path; path++)
|
||
if (*path == '/')
|
||
b = path + 1;
|
||
else if (*path == '.')
|
||
e = path;
|
||
|
||
if (strip_ext && e && e > b)
|
||
*e = '\0';
|
||
return b;
|
||
}
|
||
|
||
void usage ()
|
||
{
|
||
FILE *f = stdout;
|
||
|
||
if (!did_outfilename) {
|
||
snprintf (outfile_path, sizeof(outfile_path), outfile_template,
|
||
prefix, C_plus_plus ? "cc" : "c");
|
||
outfilename = outfile_path;
|
||
}
|
||
|
||
fprintf (f, _("Usage: %s [OPTIONS] [FILE]...\n"), program_name);
|
||
fprintf (f,
|
||
_
|
||
("Generates programs that perform pattern-matching on text.\n"
|
||
"\n" "Table Compression:\n"
|
||
" -Ca, --align trade off larger tables for better memory alignment\n"
|
||
" -Ce, --ecs construct equivalence classes\n"
|
||
" -Cf do not compress tables; use -f representation\n"
|
||
" -CF do not compress tables; use -F representation\n"
|
||
" -Cm, --meta-ecs construct meta-equivalence classes\n"
|
||
" -Cr, --read use read() instead of stdio for scanner input\n"
|
||
" -f, --full generate fast, large scanner. Same as -Cfr\n"
|
||
" -F, --fast use alternate table representation. Same as -CFr\n"
|
||
" -Cem default compression (same as --ecs --meta-ecs)\n"
|
||
"\n" "Debugging:\n"
|
||
" -d, --debug enable debug mode in scanner\n"
|
||
" -b, --backup write backing-up information to %s\n"
|
||
" -p, --perf-report write performance report to stderr\n"
|
||
" -s, --nodefault suppress default rule to ECHO unmatched text\n"
|
||
" -T, --trace %s should run in trace mode\n"
|
||
" -w, --nowarn do not generate warnings\n"
|
||
" -v, --verbose write summary of scanner statistics to stdout\n"
|
||
"\n" "Files:\n"
|
||
" -o, --outfile=FILE specify output filename\n"
|
||
" -S, --skel=FILE specify skeleton file\n"
|
||
" -t, --stdout write scanner on stdout instead of %s\n"
|
||
" --yyclass=NAME name of C++ class\n"
|
||
" --header-file=FILE create a C header file in addition to the scanner\n"
|
||
" --tables-file[=FILE] write tables to FILE\n" "\n"
|
||
"Scanner behavior:\n"
|
||
" -7, --7bit generate 7-bit scanner\n"
|
||
" -8, --8bit generate 8-bit scanner\n"
|
||
" -B, --batch generate batch scanner (opposite of -I)\n"
|
||
" -i, --case-insensitive ignore case in patterns\n"
|
||
" -l, --lex-compat maximal compatibility with original lex\n"
|
||
" -X, --posix-compat maximal compatibility with POSIX lex\n"
|
||
" -I, --interactive generate interactive scanner (opposite of -B)\n"
|
||
" --yylineno track line count in yylineno\n"
|
||
"\n" "Generated code:\n"
|
||
" -+, --c++ generate C++ scanner class\n"
|
||
" -Dmacro[=defn] #define macro defn (default defn is '1')\n"
|
||
" -L, --noline suppress #line directives in scanner\n"
|
||
" -P, --prefix=STRING use STRING as prefix instead of \"yy\"\n"
|
||
" -R, --reentrant generate a reentrant C scanner\n"
|
||
" --bison-bridge scanner for bison pure parser.\n"
|
||
" --bison-locations include yylloc support.\n"
|
||
" --stdinit initialize yyin/yyout to stdin/stdout\n"
|
||
" --noansi-definitions old-style function definitions\n"
|
||
" --noansi-prototypes empty parameter list in prototypes\n"
|
||
" --nounistd do not include <unistd.h>\n"
|
||
" --noFUNCTION do not generate a particular FUNCTION\n"
|
||
"\n" "Miscellaneous:\n"
|
||
" -c do-nothing POSIX option\n"
|
||
" -n do-nothing POSIX option\n"
|
||
" -?\n"
|
||
" -h, --help produce this help message\n"
|
||
" -V, --version report %s version\n"),
|
||
backing_name, program_name, outfile_path, program_name);
|
||
|
||
}
|