phpbrowser.c

这是一个Linux下的集成开发环境

static void yy_pop_state YY_PROTO(( void ));
#endif
#ifndef YY_NO_TOP_STATE
static int yy_top_state YY_PROTO(( void ));
#endif

#else
#define YY_NO_PUSH_STATE 1
#define YY_NO_POP_STATE 1
#define YY_NO_TOP_STATE 1
#endif

#ifdef YY_MALLOC_DECL
YY_MALLOC_DECL
#else
#if __STDC__
#ifndef __cplusplus
#include <stdlib.h>
#endif
#else
/* Just try to get by without declaring the routines.  This will fail
 * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
 * or sizeof(void*) != sizeof(int).
 */
#endif
#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif

/* Copy whatever the last rule matched to the standard output. */

#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
 * we now use fwrite().
 */
#define ECHO (void) fwrite( yytext, yyleng, 1, yyout )
#endif

/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
 * is returned in "result".
 */
#ifndef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
	if ( yy_current_buffer->yy_is_interactive ) \
		{ \
		int c = '*', n; \
		for ( n = 0; n < max_size && \
			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
			buf[n] = (char) c; \
		if ( c == '\n' ) \
			buf[n++] = (char) c; \
		if ( c == EOF && ferror( yyin ) ) \
			YY_FATAL_ERROR( "input in flex scanner failed" ); \
		result = n; \
		} \
	else if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \
		  && ferror( yyin ) ) \
		YY_FATAL_ERROR( "input in flex scanner failed" );
#endif

/* No semi-colon after return; correct usage is to write "yyterminate();" -
 * we don't want an extra ';' after the "return" because that will cause
 * some compilers to complain about unreachable statements.
 */
#ifndef yyterminate
#define yyterminate() return YY_NULL
#endif

/* Number of entries by which start-condition stack grows. */
#ifndef YY_START_STACK_INCR
#define YY_START_STACK_INCR 25
#endif

/* Report a fatal error. */
#ifndef YY_FATAL_ERROR
#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
#endif

/* Default declaration of generated scanner - a define so the user can
 * easily add parameters.
 */
#ifndef YY_DECL
#define YY_DECL int yylex YY_PROTO(( void ))
#endif

/* Code executed at the beginning of each rule, after yytext and yyleng
 * have been set up.
 */
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif

/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif

#define YY_RULE_SETUP \
	if ( yyleng > 0 ) \
		yy_current_buffer->yy_at_bol = \
				(yytext[yyleng - 1] == '\n'); \
	YY_USER_ACTION

YY_DECL
	{
	register yy_state_type yy_current_state;
	register char *yy_cp = NULL, *yy_bp = NULL;
	register int yy_act;

#line 303 "phpbrowser.l"

    /* Start in HTML mode */
    highlight_file = (int) sn_getopt(SN_OPT_HIGHLIGHT);
    token_dump_file = (char *) sn_getopt(SN_OPT_DUMP_TOKENS);
    enter_html_mode();


	if ( yy_init )
		{
		yy_init = 0;

#ifdef YY_USER_INIT
		YY_USER_INIT;
#endif

		if ( ! yy_start )
			yy_start = 1;	/* first start state */

		if ( ! yyin )
			yyin = stdin;

		if ( ! yyout )
			yyout = stdout;

		if ( ! yy_current_buffer )
			yy_current_buffer =
				yy_create_buffer( yyin, YY_BUF_SIZE );

		yy_load_buffer_state();
		}

	while ( 1 )		/* loops until end-of-file is reached */
		{
		yy_cp = yy_c_buf_p;

		/* Support of yytext. */
		*yy_cp = yy_hold_char;

		/* yy_bp points to the position in yy_ch_buf of the start of
		 * the current run.
		 */
		yy_bp = yy_cp;

		yy_current_state = yy_start;
		yy_current_state += YY_AT_BOL();
yy_match:
		do
			{
			register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
			if ( yy_accept[yy_current_state] )
				{
				yy_last_accepting_state = yy_current_state;
				yy_last_accepting_cpos = yy_cp;
				}
			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
				{
				yy_current_state = (int) yy_def[yy_current_state];
				if ( yy_current_state >= 976 )
					yy_c = yy_meta[(unsigned int) yy_c];
				}
			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
			++yy_cp;
			}
		while ( yy_base[yy_current_state] != 1478 );

yy_find_action:
		yy_act = yy_accept[yy_current_state];
		if ( yy_act == 0 )
			{ /* have to back up */
			yy_cp = yy_last_accepting_cpos;
			yy_current_state = yy_last_accepting_state;
			yy_act = yy_accept[yy_current_state];
			}

		YY_DO_BEFORE_ACTION;


do_action:	/* This label is used only to access EOF actions. */


		switch ( yy_act )
	{ /* beginning of action switch */
			case 0: /* must back up */
			/* undo the effects of YY_DO_BEFORE_ACTION */
			*yy_cp = yy_hold_char;
			yy_cp = yy_last_accepting_cpos;
			yy_current_state = yy_last_accepting_state;
			goto yy_find_action;

case 1:
YY_RULE_SETUP
#line 309 "phpbrowser.l"
{ /* PHP -> HTML mode */
    #if MATCH_DUMP
    matched_pattern("?>", yytext);
    #endif

    enter_html_mode();

    if (token_dump_file) {
      mode_buff.append( &mode_buff,
          yytext, yyleng );
    }

    sn_advance_column(2);
}
	YY_BREAK

case 2:
YY_RULE_SETUP
#line 325 "phpbrowser.l"
{
    #if MATCH_DUMP
    matched_pattern("[^\\<\\n]*", yytext);
    #endif

    #if HTML_DUMP
    fprintf(stderr, "html(1) \"%s\", %d\n", yytext, yyleng);
    #endif

    if (token_dump_file) {
      mode_buff.append( &mode_buff,
          yytext, yyleng );
    }
    sn_advance_column(yyleng);
  }
	YY_BREAK
case 3:
YY_RULE_SETUP
#line 340 "phpbrowser.l"
{
    #if MATCH_DUMP
    matched_pattern("[^\\<\\n]*\\n", yytext);
    #endif

    #if HTML_DUMP
    fprintf(stderr, "html(2) \"%s\", %d\n", yytext, yyleng);
    #endif

    if (token_dump_file) {
      mode_buff.append( &mode_buff,
          yytext, yyleng );
    }
    sn_advance_line();
    sn_reset_column();
  }
	YY_BREAK
case 4:
YY_RULE_SETUP
#line 356 "phpbrowser.l"
{
    #if MATCH_DUMP
    matched_pattern("<", yytext);
    #endif

    #if HTML_DUMP
    fprintf(stderr, "html(3) \"%s\", %d\n", yytext, yyleng);
    #endif

    if (token_dump_file) {
      mode_buff.append( &mode_buff,
          yytext, yyleng );
    }
    sn_advance_column(yyleng);
  }
	YY_BREAK
case 5:
YY_RULE_SETUP
#line 371 "phpbrowser.l"
{
    /* HTML -> PHP mode switch */
    #if MATCH_DUMP
    matched_pattern("(<?|<?=|<?php|<?PHP)", yytext);
    #endif
    sn_advance_column(yyleng);

    if (token_dump_file) {
      mode_buff.append( &mode_buff,
          yytext, yyleng );
    }

    emit_html();
    BEGIN(PHP);
  }
	YY_BREAK
/* Uncomment the next rule if you want to check to make sure
   * the above rules cover all possible input. A warning
   * "rule cannot be matched" should be printed by flex.
   */
/*. {}*/

case 6:
YY_RULE_SETUP
#line 393 "phpbrowser.l"
{
  char * x = (char *) yytext;
  char * y;
  int newline = 0;

#if MATCH_DUMP
  matched_pattern("(//|#).*\\n", yytext);
#endif

  while (*x == ' ' || *x == '\t') { x++; }
  assert(*x == '#' || (*x == '/' && *(x+1) == '/'));
  if (*x == '#') {
    x++;
  } else if (*x == '/') {
    x += 2;
  }
  sn_advance_column(x - yytext);

  /* Check for ?> in the text leading up to the newline.
   * PHP has this special rule where a line comment
   * can be terminated before the newline.
   */

  for (y=x; *y; y++) {
    if (*y == '?' && *(y+1) == '>') {
        int offset =