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Diffstat (limited to 'WebKitTools/android/flex-2.5.4a/scan.l')
| -rw-r--r-- | WebKitTools/android/flex-2.5.4a/scan.l | 710 |
1 files changed, 0 insertions, 710 deletions
diff --git a/WebKitTools/android/flex-2.5.4a/scan.l b/WebKitTools/android/flex-2.5.4a/scan.l deleted file mode 100644 index a02df8c..0000000 --- a/WebKitTools/android/flex-2.5.4a/scan.l +++ /dev/null @@ -1,710 +0,0 @@ -/* scan.l - scanner for flex input */ - -%{ -/*- - * 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 with or without - * modification 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. - */ - -/* $Header: /home/daffy/u0/vern/flex/RCS/scan.l,v 2.56 95/04/24 12:17:19 vern Exp $ */ - -#include "flexdef.h" -#include "parse.h" - -#define ACTION_ECHO add_action( yytext ) -#define ACTION_IFDEF(def, should_define) \ - { \ - if ( should_define ) \ - action_define( def, 1 ); \ - } - -#define MARK_END_OF_PROLOG mark_prolog(); - -#define YY_DECL \ - int flexscan() - -#define RETURNCHAR \ - yylval = (unsigned char) yytext[0]; \ - return CHAR; - -#define RETURNNAME \ - strcpy( nmstr, yytext ); \ - return NAME; - -#define PUT_BACK_STRING(str, start) \ - for ( i = strlen( str ) - 1; i >= start; --i ) \ - unput((str)[i]) - -#define CHECK_REJECT(str) \ - if ( all_upper( str ) ) \ - reject = true; - -#define CHECK_YYMORE(str) \ - if ( all_lower( str ) ) \ - yymore_used = true; -%} - -%option caseless nodefault outfile="scan.c" stack noyy_top_state -%option nostdinit - -%x SECT2 SECT2PROLOG SECT3 CODEBLOCK PICKUPDEF SC CARETISBOL NUM QUOTE -%x FIRSTCCL CCL ACTION RECOVER COMMENT ACTION_STRING PERCENT_BRACE_ACTION -%x OPTION LINEDIR - -WS [[:blank:]]+ -OPTWS [[:blank:]]* -NOT_WS [^[:blank:]\n] - -NL \r?\n - -NAME ([[:alpha:]_][[:alnum:]_-]*) -NOT_NAME [^[:alpha:]_*\n]+ - -SCNAME {NAME} - -ESCSEQ (\\([^\n]|[0-7]{1,3}|x[[:xdigit:]]{1,2})) - -FIRST_CCL_CHAR ([^\\\n]|{ESCSEQ}) -CCL_CHAR ([^\\\n\]]|{ESCSEQ}) -CCL_EXPR ("[:"[[:alpha:]]+":]") - -LEXOPT [aceknopr] - -%% - static int bracelevel, didadef, indented_code; - static int doing_rule_action = false; - static int option_sense; - - int doing_codeblock = false; - int i; - Char nmdef[MAXLINE], myesc(); - - -<INITIAL>{ - ^{WS} indented_code = true; BEGIN(CODEBLOCK); - ^"/*" ACTION_ECHO; yy_push_state( COMMENT ); - ^#{OPTWS}line{WS} yy_push_state( LINEDIR ); - ^"%s"{NAME}? return SCDECL; - ^"%x"{NAME}? return XSCDECL; - ^"%{".*{NL} { - ++linenum; - line_directive_out( (FILE *) 0, 1 ); - indented_code = false; - BEGIN(CODEBLOCK); - } - - {WS} /* discard */ - - ^"%%".* { - sectnum = 2; - bracelevel = 0; - mark_defs1(); - line_directive_out( (FILE *) 0, 1 ); - BEGIN(SECT2PROLOG); - return SECTEND; - } - - ^"%pointer".*{NL} yytext_is_array = false; ++linenum; - ^"%array".*{NL} yytext_is_array = true; ++linenum; - - ^"%option" BEGIN(OPTION); return OPTION_OP; - - ^"%"{LEXOPT}{OPTWS}[[:digit:]]*{OPTWS}{NL} ++linenum; /* ignore */ - ^"%"{LEXOPT}{WS}.*{NL} ++linenum; /* ignore */ - - ^"%"[^sxaceknopr{}].* synerr( _( "unrecognized '%' directive" ) ); - - ^{NAME} { - strcpy( nmstr, yytext ); - didadef = false; - BEGIN(PICKUPDEF); - } - - {SCNAME} RETURNNAME; - ^{OPTWS}{NL} ++linenum; /* allows blank lines in section 1 */ - {OPTWS}{NL} ACTION_ECHO; ++linenum; /* maybe end of comment line */ -} - - -<COMMENT>{ - "*/" ACTION_ECHO; yy_pop_state(); - "*" ACTION_ECHO; - [^*\n]+ ACTION_ECHO; - [^*\n]*{NL} ++linenum; ACTION_ECHO; -} - -<LINEDIR>{ - \n yy_pop_state(); - [[:digit:]]+ linenum = myctoi( yytext ); - - \"[^"\n]*\" { - flex_free( (void *) infilename ); - infilename = copy_string( yytext + 1 ); - infilename[strlen( infilename ) - 1] = '\0'; - } - . /* ignore spurious characters */ -} - -<CODEBLOCK>{ - ^"%}".*{NL} ++linenum; BEGIN(INITIAL); - - {NAME}|{NOT_NAME}|. ACTION_ECHO; - - {NL} { - ++linenum; - ACTION_ECHO; - if ( indented_code ) - BEGIN(INITIAL); - } -} - - -<PICKUPDEF>{ - {WS} /* separates name and definition */ - - {NOT_WS}.* { - strcpy( (char *) nmdef, yytext ); - - /* Skip trailing whitespace. */ - for ( i = strlen( (char *) nmdef ) - 1; - i >= 0 && (nmdef[i] == ' ' || nmdef[i] == '\t'); - --i ) - ; - - nmdef[i + 1] = '\0'; - - ndinstal( nmstr, nmdef ); - didadef = true; - } - - {NL} { - if ( ! didadef ) - synerr( _( "incomplete name definition" ) ); - BEGIN(INITIAL); - ++linenum; - } -} - - -<OPTION>{ - {NL} ++linenum; BEGIN(INITIAL); - {WS} option_sense = true; - - "=" return '='; - - no option_sense = ! option_sense; - - 7bit csize = option_sense ? 128 : 256; - 8bit csize = option_sense ? 256 : 128; - - align long_align = option_sense; - always-interactive { - action_define( "YY_ALWAYS_INTERACTIVE", option_sense ); - } - array yytext_is_array = option_sense; - backup backing_up_report = option_sense; - batch interactive = ! option_sense; - "c++" C_plus_plus = option_sense; - caseful|case-sensitive caseins = ! option_sense; - caseless|case-insensitive caseins = option_sense; - debug ddebug = option_sense; - default spprdflt = ! option_sense; - ecs useecs = option_sense; - fast { - useecs = usemecs = false; - use_read = fullspd = true; - } - full { - useecs = usemecs = false; - use_read = fulltbl = true; - } - input ACTION_IFDEF("YY_NO_INPUT", ! option_sense); - interactive interactive = option_sense; - lex-compat lex_compat = option_sense; - main { - action_define( "YY_MAIN", option_sense ); - do_yywrap = ! option_sense; - } - meta-ecs usemecs = option_sense; - never-interactive { - action_define( "YY_NEVER_INTERACTIVE", option_sense ); - } - perf-report performance_report += option_sense ? 1 : -1; - pointer yytext_is_array = ! option_sense; - read use_read = option_sense; - reject reject_really_used = option_sense; - stack action_define( "YY_STACK_USED", option_sense ); - stdinit do_stdinit = option_sense; - stdout use_stdout = option_sense; - unput ACTION_IFDEF("YY_NO_UNPUT", ! option_sense); - verbose printstats = option_sense; - warn nowarn = ! option_sense; - yylineno do_yylineno = option_sense; - yymore yymore_really_used = option_sense; - yywrap do_yywrap = option_sense; - - yy_push_state ACTION_IFDEF("YY_NO_PUSH_STATE", ! option_sense); - yy_pop_state ACTION_IFDEF("YY_NO_POP_STATE", ! option_sense); - yy_top_state ACTION_IFDEF("YY_NO_TOP_STATE", ! option_sense); - - yy_scan_buffer ACTION_IFDEF("YY_NO_SCAN_BUFFER", ! option_sense); - yy_scan_bytes ACTION_IFDEF("YY_NO_SCAN_BYTES", ! option_sense); - yy_scan_string ACTION_IFDEF("YY_NO_SCAN_STRING", ! option_sense); - - outfile return OPT_OUTFILE; - prefix return OPT_PREFIX; - yyclass return OPT_YYCLASS; - - \"[^"\n]*\" { - strcpy( nmstr, yytext + 1 ); - nmstr[strlen( nmstr ) - 1] = '\0'; - return NAME; - } - - (([a-mo-z]|n[a-np-z])[[:alpha:]\-+]*)|. { - format_synerr( _( "unrecognized %%option: %s" ), - yytext ); - BEGIN(RECOVER); - } -} - -<RECOVER>.*{NL} ++linenum; BEGIN(INITIAL); - - -<SECT2PROLOG>{ - ^"%{".* ++bracelevel; yyless( 2 ); /* eat only %{ */ - ^"%}".* --bracelevel; yyless( 2 ); /* eat only %} */ - - ^{WS}.* ACTION_ECHO; /* indented code in prolog */ - - ^{NOT_WS}.* { /* non-indented code */ - if ( bracelevel <= 0 ) - { /* not in %{ ... %} */ - yyless( 0 ); /* put it all back */ - yy_set_bol( 1 ); - mark_prolog(); - BEGIN(SECT2); - } - else - ACTION_ECHO; - } - - .* ACTION_ECHO; - {NL} ++linenum; ACTION_ECHO; - - <<EOF>> { - mark_prolog(); - sectnum = 0; - yyterminate(); /* to stop the parser */ - } -} - -<SECT2>{ - ^{OPTWS}{NL} ++linenum; /* allow blank lines in section 2 */ - - ^{OPTWS}"%{" { - indented_code = false; - doing_codeblock = true; - bracelevel = 1; - BEGIN(PERCENT_BRACE_ACTION); - } - - ^{OPTWS}"<" BEGIN(SC); return '<'; - ^{OPTWS}"^" return '^'; - \" BEGIN(QUOTE); return '"'; - "{"/[[:digit:]] BEGIN(NUM); return '{'; - "$"/([[:blank:]]|{NL}) return '$'; - - {WS}"%{" { - bracelevel = 1; - BEGIN(PERCENT_BRACE_ACTION); - - if ( in_rule ) - { - doing_rule_action = true; - in_rule = false; - return '\n'; - } - } - {WS}"|".*{NL} continued_action = true; ++linenum; return '\n'; - - ^{WS}"/*" { - yyless( yyleng - 2 ); /* put back '/', '*' */ - bracelevel = 0; - continued_action = false; - BEGIN(ACTION); - } - - ^{WS} /* allow indented rules */ - - {WS} { - /* This rule is separate from the one below because - * otherwise we get variable trailing context, so - * we can't build the scanner using -{f,F}. - */ - bracelevel = 0; - continued_action = false; - BEGIN(ACTION); - - if ( in_rule ) - { - doing_rule_action = true; - in_rule = false; - return '\n'; - } - } - - {OPTWS}{NL} { - bracelevel = 0; - continued_action = false; - BEGIN(ACTION); - unput( '\n' ); /* so <ACTION> sees it */ - - if ( in_rule ) - { - doing_rule_action = true; - in_rule = false; - return '\n'; - } - } - - ^{OPTWS}"<<EOF>>" | - "<<EOF>>" return EOF_OP; - - ^"%%".* { - sectnum = 3; - BEGIN(SECT3); - yyterminate(); /* to stop the parser */ - } - - "["({FIRST_CCL_CHAR}|{CCL_EXPR})({CCL_CHAR}|{CCL_EXPR})* { - int cclval; - - strcpy( nmstr, yytext ); - - /* Check to see if we've already encountered this - * ccl. - */ - if ( (cclval = ccllookup( (Char *) nmstr )) != 0 ) - { - if ( input() != ']' ) - synerr( _( "bad character class" ) ); - - yylval = cclval; - ++cclreuse; - return PREVCCL; - } - else - { - /* We fudge a bit. We know that this ccl will - * soon be numbered as lastccl + 1 by cclinit. - */ - cclinstal( (Char *) nmstr, lastccl + 1 ); - - /* Push back everything but the leading bracket - * so the ccl can be rescanned. - */ - yyless( 1 ); - - BEGIN(FIRSTCCL); - return '['; - } - } - - "{"{NAME}"}" { - register Char *nmdefptr; - Char *ndlookup(); - - strcpy( nmstr, yytext + 1 ); - nmstr[yyleng - 2] = '\0'; /* chop trailing brace */ - - if ( (nmdefptr = ndlookup( nmstr )) == 0 ) - format_synerr( - _( "undefined definition {%s}" ), - nmstr ); - - else - { /* push back name surrounded by ()'s */ - int len = strlen( (char *) nmdefptr ); - - if ( lex_compat || nmdefptr[0] == '^' || - (len > 0 && nmdefptr[len - 1] == '$') ) - { /* don't use ()'s after all */ - PUT_BACK_STRING((char *) nmdefptr, 0); - - if ( nmdefptr[0] == '^' ) - BEGIN(CARETISBOL); - } - - else - { - unput(')'); - PUT_BACK_STRING((char *) nmdefptr, 0); - unput('('); - } - } - } - - [/|*+?.(){}] return (unsigned char) yytext[0]; - . RETURNCHAR; -} - - -<SC>{ - [,*] return (unsigned char) yytext[0]; - ">" BEGIN(SECT2); return '>'; - ">"/^ BEGIN(CARETISBOL); return '>'; - {SCNAME} RETURNNAME; - . { - format_synerr( _( "bad <start condition>: %s" ), - yytext ); - } -} - -<CARETISBOL>"^" BEGIN(SECT2); return '^'; - - -<QUOTE>{ - [^"\n] RETURNCHAR; - \" BEGIN(SECT2); return '"'; - - {NL} { - synerr( _( "missing quote" ) ); - BEGIN(SECT2); - ++linenum; - return '"'; - } -} - - -<FIRSTCCL>{ - "^"/[^-\]\n] BEGIN(CCL); return '^'; - "^"/("-"|"]") return '^'; - . BEGIN(CCL); RETURNCHAR; -} - -<CCL>{ - -/[^\]\n] return '-'; - [^\]\n] RETURNCHAR; - "]" BEGIN(SECT2); return ']'; - .|{NL} { - synerr( _( "bad character class" ) ); - BEGIN(SECT2); - return ']'; - } -} - -<FIRSTCCL,CCL>{ - "[:alnum:]" BEGIN(CCL); return CCE_ALNUM; - "[:alpha:]" BEGIN(CCL); return CCE_ALPHA; - "[:blank:]" BEGIN(CCL); return CCE_BLANK; - "[:cntrl:]" BEGIN(CCL); return CCE_CNTRL; - "[:digit:]" BEGIN(CCL); return CCE_DIGIT; - "[:graph:]" BEGIN(CCL); return CCE_GRAPH; - "[:lower:]" BEGIN(CCL); return CCE_LOWER; - "[:print:]" BEGIN(CCL); return CCE_PRINT; - "[:punct:]" BEGIN(CCL); return CCE_PUNCT; - "[:space:]" BEGIN(CCL); return CCE_SPACE; - "[:upper:]" BEGIN(CCL); return CCE_UPPER; - "[:xdigit:]" BEGIN(CCL); return CCE_XDIGIT; - {CCL_EXPR} { - format_synerr( - _( "bad character class expression: %s" ), - yytext ); - BEGIN(CCL); return CCE_ALNUM; - } -} - -<NUM>{ - [[:digit:]]+ { - yylval = myctoi( yytext ); - return NUMBER; - } - - "," return ','; - "}" BEGIN(SECT2); return '}'; - - . { - synerr( _( "bad character inside {}'s" ) ); - BEGIN(SECT2); - return '}'; - } - - {NL} { - synerr( _( "missing }" ) ); - BEGIN(SECT2); - ++linenum; - return '}'; - } -} - - -<PERCENT_BRACE_ACTION>{ - {OPTWS}"%}".* bracelevel = 0; - - <ACTION>"/*" ACTION_ECHO; yy_push_state( COMMENT ); - - <CODEBLOCK,ACTION>{ - "reject" { - ACTION_ECHO; - CHECK_REJECT(yytext); - } - "yymore" { - ACTION_ECHO; - CHECK_YYMORE(yytext); - } - } - - {NAME}|{NOT_NAME}|. ACTION_ECHO; - {NL} { - ++linenum; - ACTION_ECHO; - if ( bracelevel == 0 || - (doing_codeblock && indented_code) ) - { - if ( doing_rule_action ) - add_action( "\tYY_BREAK\n" ); - - doing_rule_action = doing_codeblock = false; - BEGIN(SECT2); - } - } -} - - - /* Reject and YYmore() are checked for above, in PERCENT_BRACE_ACTION */ -<ACTION>{ - "{" ACTION_ECHO; ++bracelevel; - "}" ACTION_ECHO; --bracelevel; - [^[:alpha:]_{}"'/\n]+ ACTION_ECHO; - {NAME} ACTION_ECHO; - "'"([^'\\\n]|\\.)*"'" ACTION_ECHO; /* character constant */ - \" ACTION_ECHO; BEGIN(ACTION_STRING); - {NL} { - ++linenum; - ACTION_ECHO; - if ( bracelevel == 0 ) - { - if ( doing_rule_action ) - add_action( "\tYY_BREAK\n" ); - - doing_rule_action = false; - BEGIN(SECT2); - } - } - . ACTION_ECHO; -} - -<ACTION_STRING>{ - [^"\\\n]+ ACTION_ECHO; - \\. ACTION_ECHO; - {NL} ++linenum; ACTION_ECHO; - \" ACTION_ECHO; BEGIN(ACTION); - . ACTION_ECHO; -} - -<COMMENT,ACTION,ACTION_STRING><<EOF>> { - synerr( _( "EOF encountered inside an action" ) ); - yyterminate(); - } - - -<SECT2,QUOTE,FIRSTCCL,CCL>{ESCSEQ} { - yylval = myesc( (Char *) yytext ); - - if ( YY_START == FIRSTCCL ) - BEGIN(CCL); - - return CHAR; - } - - -<SECT3>{ - .*(\n?) ECHO; - <<EOF>> sectnum = 0; yyterminate(); -} - -<*>.|\n format_synerr( _( "bad character: %s" ), yytext ); - -%% - - -int yywrap() - { - if ( --num_input_files > 0 ) - { - set_input_file( *++input_files ); - return 0; - } - - else - return 1; - } - - -/* set_input_file - open the given file (if NULL, stdin) for scanning */ - -void set_input_file( file ) -char *file; - { - if ( file && strcmp( file, "-" ) ) - { - infilename = copy_string( file ); - yyin = fopen( infilename, "r" ); - - if ( yyin == NULL ) - lerrsf( _( "can't open %s" ), file ); - } - - else - { - yyin = stdin; - infilename = copy_string( "<stdin>" ); - } - - linenum = 1; - } - - -/* Wrapper routines for accessing the scanner's malloc routines. */ - -void *flex_alloc( size ) -size_t size; - { - return (void *) malloc( size ); - } - -void *flex_realloc( ptr, size ) -void *ptr; -size_t size; - { - return (void *) realloc( ptr, size ); - } - -void flex_free( ptr ) -void *ptr; - { - if ( ptr ) - free( ptr ); - } |