diff options
Diffstat (limited to 'usr.bin/lex/main.c')
-rw-r--r-- | usr.bin/lex/main.c | 1177 |
1 files changed, 0 insertions, 1177 deletions
diff --git a/usr.bin/lex/main.c b/usr.bin/lex/main.c deleted file mode 100644 index 9ca21ff36014f..0000000000000 --- a/usr.bin/lex/main.c +++ /dev/null @@ -1,1177 +0,0 @@ -/* flex - tool to generate fast lexical analyzers */ - -/*- - * Copyright (c) 1990 The Regents of the University of California. - * All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Vern Paxson. - * - * The United States Government has rights in this work pursuant - * to contract no. DE-AC03-76SF00098 between the United States - * Department of Energy and the University of California. - * - * Redistribution and use in source and binary forms are permitted provided - * that: (1) source distributions retain this entire copyright notice and - * comment, and (2) distributions including binaries display the following - * acknowledgement: ``This product includes software developed by the - * University of California, Berkeley and its contributors'' in the - * documentation or other materials provided with the distribution and in - * all advertising materials mentioning features or use of this software. - * 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 IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#ifndef lint -char copyright[] = -"@(#) Copyright (c) 1990 The Regents of the University of California.\n\ - All rights reserved.\n"; -#endif /* not lint */ - -/* $Header: /home/daffy/u0/vern/flex/RCS/main.c,v 2.64 96/05/25 20:42:42 vern Exp $ */ - - -#include "flexdef.h" -#include "version.h" - -static char flex_version[] = FLEX_VERSION; - - -/* declare functions that have forward references */ - -void flexinit PROTO((int, char**)); -void readin PROTO((void)); -void set_up_initial_allocations PROTO((void)); - -#ifdef NEED_ARGV_FIXUP -extern void argv_fixup PROTO((int *, char ***)); -#endif - - -/* these globals are all defined and commented in flexdef.h */ -int printstats, syntaxerror, eofseen, ddebug, trace, nowarn, spprdflt; -int interactive, caseins, lex_compat, do_yylineno, 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, csize; -int yymore_used, reject, real_reject, continued_action, in_rule; -int yymore_really_used, reject_really_used; -int datapos, dataline, linenum, out_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; -int did_outfilename; -char *prefix, *yyclass; -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 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; - -/* 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]. - */ -char *program_name = "flex"; - -#ifndef SHORT_FILE_NAMES -static char *outfile_template = "lex.%s.%s"; -static char *backing_name = "lex.backup"; -#else -static char *outfile_template = "lex%s.%s"; -static char *backing_name = "lex.bck"; -#endif - -#ifdef THINK_C -#include <console.h> -#endif - -#ifdef MS_DOS -extern unsigned _stklen = 16384; -#endif - -static char outfile_path[MAXLINE]; -static int outfile_created = 0; -static char *skelname = NULL; - - -int main( argc, argv ) -int argc; -char **argv; - { - int i; - -#ifdef THINK_C - argc = ccommand( &argv ); -#endif -#ifdef NEED_ARGV_FIXUP - argv_fixup( &argc, &argv ); -#endif - - flexinit( argc, argv ); - - readin(); - - ntod(); - - for ( i = 1; i <= num_rules; ++i ) - if ( ! rule_useful[i] && i != default_rule ) - line_warning( _( "rule cannot be matched" ), - rule_linenum[i] ); - - if ( spprdflt && ! reject && rule_useful[default_rule] ) - line_warning( - _( "-s option given but default rule can be matched" ), - rule_linenum[default_rule] ); - - /* Generate the C state transition tables from the DFA. */ - make_tables(); - - /* Note, flexend does not return. It exits with its argument - * as status. - */ - flexend( 0 ); - - return 0; /* keep compilers/lint happy */ - } - - -/* check_options - check user-specified options */ - -void check_options() - { - int i; - - if ( lex_compat ) - { - if ( C_plus_plus ) - flexerror( _( "Can't use -+ with -l option" ) ); - - if ( fulltbl || fullspd ) - flexerror( _( "Can't use -f or -F with -l option" ) ); - - /* Don't rely on detecting use of yymore() and REJECT, - * just assume they'll be used. - */ - yymore_really_used = reject_really_used = true; - - yytext_is_array = true; - do_yylineno = true; - use_read = false; - } - - if ( do_yylineno ) - /* This should really be "maintain_backup_tables = true" */ - reject_really_used = true; - - if ( csize == unspecified ) - { - if ( (fulltbl || fullspd) && ! useecs ) - csize = DEFAULT_CSIZE; - else - csize = CSIZE; - } - - if ( interactive == unspecified ) - { - if ( fulltbl || fullspd ) - interactive = false; - else - interactive = true; - } - - if ( fulltbl || fullspd ) - { - if ( usemecs ) - flexerror( - _( "-Cf/-CF and -Cm don't make sense together" ) ); - - if ( interactive ) - flexerror( _( "-Cf/-CF and -I are incompatible" ) ); - - if ( lex_compat ) - flexerror( - _( "-Cf/-CF are incompatible with lex-compatibility mode" ) ); - - if ( do_yylineno ) - flexerror( - _( "-Cf/-CF and %option yylineno are incompatible" ) ); - - if ( fulltbl && fullspd ) - flexerror( _( "-Cf and -CF are mutually exclusive" ) ); - } - - if ( C_plus_plus && fullspd ) - flexerror( _( "Can't use -+ with -CF option" ) ); - - if ( C_plus_plus && yytext_is_array ) - { - warn( _( "%array incompatible with -+ option" ) ); - yytext_is_array = false; - } - - if ( useecs ) - { /* Set up doubly-linked equivalence classes. */ - - /* We loop all the way up to csize, since ecgroup[csize] is - * the position used for NUL characters. - */ - ecgroup[1] = NIL; - - for ( i = 2; i <= csize; ++i ) - { - ecgroup[i] = i - 1; - nextecm[i - 1] = i; - } - - nextecm[csize] = NIL; - } - - else - { - /* Put everything in its own equivalence class. */ - for ( i = 1; i <= csize; ++i ) - { - ecgroup[i] = i; - nextecm[i] = BAD_SUBSCRIPT; /* to catch errors */ - } - } - - if ( ! use_stdout ) - { - FILE *prev_stdout; - - if ( ! did_outfilename ) - { - char *suffix; - - if ( C_plus_plus ) - suffix = "cc"; - else - suffix = "c"; - - sprintf( 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; - } - - if ( skelname && (skelfile = fopen( skelname, "r" )) == NULL ) - lerrsf( _( "can't open skeleton file %s" ), skelname ); - - if ( strcmp( prefix, "yy" ) ) - { -#define GEN_PREFIX(name) out_str3( "#define yy%s %s%s\n", name, prefix, name ) - if ( C_plus_plus ) - GEN_PREFIX( "FlexLexer" ); - else - { - GEN_PREFIX( "_create_buffer" ); - GEN_PREFIX( "_delete_buffer" ); - GEN_PREFIX( "_scan_buffer" ); - GEN_PREFIX( "_scan_string" ); - GEN_PREFIX( "_scan_bytes" ); - GEN_PREFIX( "_flex_debug" ); - GEN_PREFIX( "_init_buffer" ); - GEN_PREFIX( "_flush_buffer" ); - GEN_PREFIX( "_load_buffer_state" ); - GEN_PREFIX( "_switch_to_buffer" ); - GEN_PREFIX( "in" ); - GEN_PREFIX( "leng" ); - GEN_PREFIX( "lex" ); - GEN_PREFIX( "out" ); - GEN_PREFIX( "restart" ); - GEN_PREFIX( "text" ); - - if ( do_yylineno ) - GEN_PREFIX( "lineno" ); - } - - if ( do_yywrap ) - GEN_PREFIX( "wrap" ); - - outn( "" ); - } - - if ( did_outfilename ) - line_directive_out( stdout, 0 ); - - skelout(); - } - - -/* flexend - terminate flex - * - * note - * This routine does not return. - */ - -void flexend( exit_status ) -int exit_status; - - { - int tblsiz; - int unlink(); - - 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 ( exit_status != 0 && outfile_created ) - { - if ( ferror( stdout ) ) - lerrsf( _( "error writing output file %s" ), - outfilename ); - - else if ( 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 ( caseins ) - putc( 'i', stderr ); - if ( lex_compat ) - putc( 'l', stderr ); - if ( performance_report > 0 ) - putc( 'p', stderr ); - if ( performance_report > 1 ) - putc( 'p', stderr ); - if ( spprdflt ) - putc( 's', 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 ); - } - - exit( exit_status ); - } - - -/* flexinit - initialize flex */ - -void flexinit( argc, argv ) -int argc; -char **argv; - { - int i, sawcmpflag; - char *arg; - - printstats = syntaxerror = trace = spprdflt = caseins = false; - lex_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; - performance_report = 0; - did_outfilename = 0; - prefix = "yy"; - yyclass = 0; - use_read = use_stdout = false; - - 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'; - - program_name = argv[0]; - - if ( program_name[0] != '\0' && - program_name[strlen( program_name ) - 1] == '+' ) - C_plus_plus = true; - - /* read flags */ - for ( --argc, ++argv; argc ; --argc, ++argv ) - { - arg = argv[0]; - - if ( arg[0] != '-' || arg[1] == '\0' ) - break; - - if ( arg[1] == '-' ) - { /* --option */ - if ( ! strcmp( arg, "--help" ) ) - arg = "-h"; - - else if ( ! strcmp( arg, "--version" ) ) - arg = "-V"; - - else if ( ! strcmp( arg, "--" ) ) - { /* end of options */ - --argc; - ++argv; - break; - } - } - - for ( i = 1; arg[i] != '\0'; ++i ) - switch ( arg[i] ) - { - case '+': - C_plus_plus = true; - break; - - case 'B': - interactive = false; - break; - - case 'b': - backing_up_report = true; - break; - - case 'c': - break; - - case 'C': - if ( i != 1 ) - flexerror( - _( "-C flag must be given separately" ) ); - - if ( ! sawcmpflag ) - { - useecs = false; - usemecs = false; - fulltbl = false; - sawcmpflag = true; - } - - for ( ++i; 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; - } - - goto get_next_arg; - - case 'd': - ddebug = true; - break; - - case 'f': - useecs = usemecs = false; - use_read = fulltbl = true; - break; - - case 'F': - useecs = usemecs = false; - use_read = fullspd = true; - break; - - case '?': - case 'h': - usage(); - exit( 0 ); - - case 'I': - interactive = true; - break; - - case 'i': - caseins = true; - break; - - case 'l': - lex_compat = true; - break; - - case 'L': - gen_line_dirs = false; - break; - - case 'n': - /* Stupid do-nothing deprecated - * option. - */ - break; - - case 'o': - if ( i != 1 ) - flexerror( - _( "-o flag must be given separately" ) ); - - outfilename = arg + i + 1; - did_outfilename = 1; - goto get_next_arg; - - case 'P': - if ( i != 1 ) - flexerror( - _( "-P flag must be given separately" ) ); - - prefix = arg + i + 1; - goto get_next_arg; - - case 'p': - ++performance_report; - break; - - case 'S': - if ( i != 1 ) - flexerror( - _( "-S flag must be given separately" ) ); - - skelname = arg + i + 1; - goto get_next_arg; - - case 's': - spprdflt = true; - break; - - case 't': - use_stdout = true; - break; - - case 'T': - trace = true; - break; - - case 'v': - printstats = true; - break; - - case 'V': - printf( _( "%s version %s\n" ), - program_name, flex_version ); - exit( 0 ); - - case 'w': - nowarn = true; - break; - - case '7': - csize = 128; - break; - - case '8': - csize = CSIZE; - break; - - default: - fprintf( stderr, - _( "%s: unknown flag '%c'. For usage, try\n\t%s --help\n" ), - program_name, (int) arg[i], - program_name ); - exit( 1 ); - } - - /* Used by -C, -S, -o, and -P flags in lieu of a "continue 2" - * control. - */ - get_next_arg: ; - } - - num_input_files = argc; - input_files = argv; - 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; - - out_linenum = 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 ( 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 large performance penalty\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 -f or -F" ) ); - else - flexerror( - _( "variable trailing context rules cannot be used with -f or -F" ) ); - } - - if ( reject ) - outn( "\n#define YY_USES_REJECT" ); - - if ( ! do_yywrap ) - { - outn( "\n#define yywrap() 1" ); - outn( "#define YY_SKIP_YYWRAP" ); - } - - if ( ddebug ) - outn( "\n#define FLEX_DEBUG" ); - - if ( csize == 256 ) - outn( "typedef unsigned char YY_CHAR;" ); - else - outn( "typedef char YY_CHAR;" ); - - if ( C_plus_plus ) - { - outn( "#define yytext_ptr yytext" ); - - if ( interactive ) - outn( "#define YY_INTERACTIVE" ); - } - - else - { - if ( do_stdinit ) - { - 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 - outn( yy_nostdinit ); - } - - if ( fullspd ) - outn( "typedef yyconst struct yy_trans_info *yy_state_type;" ); - else if ( ! C_plus_plus ) - outn( "typedef int yy_state_type;" ); - - if ( ddebug ) - outn( "\n#define FLEX_DEBUG" ); - - if ( lex_compat ) - outn( "#define YY_FLEX_LEX_COMPAT" ); - - if ( do_yylineno && ! C_plus_plus ) - { - outn( "extern int yylineno;" ); - outn( "int yylineno = 1;" ); - } - - if ( C_plus_plus ) - { - outn( "\n#include <FlexLexer.h>" ); - - 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 - { - if ( yytext_is_array ) - outn( "extern char yytext[];\n" ); - - 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() - { - 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 ); - - 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 ); - - 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; - } - - -void usage() - { - FILE *f = stdout; - - fprintf( f, -_( "%s [-bcdfhilnpstvwBFILTV78+? -C[aefFmr] -ooutput -Pprefix -Sskeleton]\n" ), - program_name ); - fprintf( f, _( "\t[--help --version] [file ...]\n" ) ); - - fprintf( f, _( "\t-b generate backing-up information to %s\n" ), - backing_name ); - fprintf( f, _( "\t-c do-nothing POSIX option\n" ) ); - fprintf( f, _( "\t-d turn on debug mode in generated scanner\n" ) ); - fprintf( f, _( "\t-f generate fast, large scanner\n" ) ); - fprintf( f, _( "\t-h produce this help message\n" ) ); - fprintf( f, _( "\t-i generate case-insensitive scanner\n" ) ); - fprintf( f, _( "\t-l maximal compatibility with original lex\n" ) ); - fprintf( f, _( "\t-n do-nothing POSIX option\n" ) ); - fprintf( f, _( "\t-p generate performance report to stderr\n" ) ); - fprintf( f, - _( "\t-s suppress default rule to ECHO unmatched text\n" ) ); - - if ( ! did_outfilename ) - { - sprintf( outfile_path, outfile_template, - prefix, C_plus_plus ? "cc" : "c" ); - outfilename = outfile_path; - } - - fprintf( f, - _( "\t-t write generated scanner on stdout instead of %s\n" ), - outfilename ); - - fprintf( f, - _( "\t-v write summary of scanner statistics to f\n" ) ); - fprintf( f, _( "\t-w do not generate warnings\n" ) ); - fprintf( f, _( "\t-B generate batch scanner (opposite of -I)\n" ) ); - fprintf( f, - _( "\t-F use alternative fast scanner representation\n" ) ); - fprintf( f, - _( "\t-I generate interactive scanner (opposite of -B)\n" ) ); - fprintf( f, _( "\t-L suppress #line directives in scanner\n" ) ); - fprintf( f, _( "\t-T %s should run in trace mode\n" ), program_name ); - fprintf( f, _( "\t-V report %s version\n" ), program_name ); - fprintf( f, _( "\t-7 generate 7-bit scanner\n" ) ); - fprintf( f, _( "\t-8 generate 8-bit scanner\n" ) ); - fprintf( f, _( "\t-+ generate C++ scanner class\n" ) ); - fprintf( f, _( "\t-? produce this help message\n" ) ); - fprintf( f, -_( "\t-C specify degree of table compression (default is -Cem):\n" ) ); - fprintf( f, -_( "\t\t-Ca trade off larger tables for better memory alignment\n" ) ); - fprintf( f, _( "\t\t-Ce construct equivalence classes\n" ) ); - fprintf( f, -_( "\t\t-Cf do not compress scanner tables; use -f representation\n" ) ); - fprintf( f, -_( "\t\t-CF do not compress scanner tables; use -F representation\n" ) ); - fprintf( f, _( "\t\t-Cm construct meta-equivalence classes\n" ) ); - fprintf( f, - _( "\t\t-Cr use read() instead of stdio for scanner input\n" ) ); - fprintf( f, _( "\t-o specify output filename\n" ) ); - fprintf( f, _( "\t-P specify scanner prefix other than \"yy\"\n" ) ); - fprintf( f, _( "\t-S specify skeleton file\n" ) ); - fprintf( f, _( "\t--help produce this help message\n" ) ); - fprintf( f, _( "\t--version report %s version\n" ), program_name ); - } |