config.cpp

doxygen(一个自动从源代码生成文档的工具)的源代码

#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 \
	YY_USER_ACTION

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

#line 414 "config.l"



	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_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 >= 100 )
					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] != 408 );

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 416 "config.l"

	YY_BREAK
case 2:
YY_RULE_SETUP
#line 417 "config.l"
{ BEGIN(SkipComment); }
	YY_BREAK
case 3:
YY_RULE_SETUP
#line 418 "config.l"
{ QCString cmd=yytext;
                                           cmd=cmd.left(cmd.length()-1).stripWhiteSpace(); 
					   ConfigOption *option = config->get(cmd);
					   if (option==0) // oops not known
					   {
					     config_err("Warning: ignoring unsupported tag `%s' at line %d, file %s\n",
						 yytext,yyLineNr,yyFileName.data()); 
					     BEGIN(SkipInvalid);
					   }
					   else // known tag
					   {
					     switch(option->kind())
					     {
					       case ConfigOption::O_Info:
						 // shouldn't get here!
					         BEGIN(SkipInvalid);
						 break;
					       case ConfigOption::O_List:
						 l = ((ConfigList *)option)->valueRef();
					         l->clear();
						 elemStr="";
					         BEGIN(GetStrList);
					         break;
					       case ConfigOption::O_Enum:
						 s = ((ConfigEnum *)option)->valueRef();
					         s->resize(0);
					         BEGIN(GetString);
					         break;
					       case ConfigOption::O_String:
						 s = ((ConfigString *)option)->valueRef();
					         s->resize(0);
					         BEGIN(GetString);
					         break;
					       case ConfigOption::O_Int:
						 s = ((ConfigInt *)option)->valueStringRef();
					         s->resize(0);
					         BEGIN(GetString);
					         break;
					       case ConfigOption::O_Bool:
						 s = ((ConfigBool *)option)->valueStringRef();
					         s->resize(0);
					         BEGIN(GetString);
						 break;
					     }
					   }
					}
	YY_BREAK
case 4:
YY_RULE_SETUP
#line 464 "config.l"
{ QCString cmd=yytext;
                                          cmd=cmd.left(cmd.length()-2).stripWhiteSpace(); 
					  ConfigOption *option = config->get(cmd);
					  if (option==0) // oops not known
					  {
					    config_err("Warning: ignoring unsupported tag `%s' at line %d, file %s\n",
						yytext,yyLineNr,yyFileName.data()); 
					    BEGIN(SkipInvalid);
					  }
					  else // known tag
					  {
					    switch(option->kind())
					    {
					      case ConfigOption::O_Info:
					        // shouldn't get here!
					        BEGIN(SkipInvalid);
						break;
					      case ConfigOption::O_List:
					        l = ((ConfigList *)option)->valueRef();
						elemStr="";
					        BEGIN(GetStrList);
					        break;
					      case ConfigOption::O_Enum:
					      case ConfigOption::O_String:
					      case ConfigOption::O_Int:
					      case ConfigOption::O_Bool:
					        config_err("Warning: operator += not supported for `%s'. Ignoring line at line %d, file %s\n",
						    yytext,yyLineNr,yyFileName.data()); 
					        BEGIN(SkipInvalid);
						break;
					     }
					   }
					}
	YY_BREAK
case 5:
YY_RULE_SETUP
#line 497 "config.l"
{ BEGIN(GetStrList); l=&includePathList; l->clear(); elemStr=""; }
	YY_BREAK
/* include a config file */
case 6:
YY_RULE_SETUP
#line 499 "config.l"
{ BEGIN(Include);}
	YY_BREAK
case 7:
YY_RULE_SETUP
#line 500 "config.l"
{ 
  					  readIncludeFile(yytext); 
  					  BEGIN(Start);
					}
	YY_BREAK
case YY_STATE_EOF(INITIAL):
case YY_STATE_EOF(Start):
case YY_STATE_EOF(SkipComment):
case YY_STATE_EOF(SkipInvalid):
case YY_STATE_EOF(GetString):
case YY_STATE_EOF(GetBool):
case YY_STATE_EOF(GetStrList):
case YY_STATE_EOF(GetQuotedString):
case YY_STATE_EOF(GetEnvVar):
case YY_STATE_EOF(Include):
#line 504 "config.l"
{
                                          //printf("End of include file\n");
					  //printf("Include stack depth=%d\n",g_includeStack.count());
                                          if (includeStack.isEmpty())
					  {
					    //printf("Terminating scanner!\n");
					    yyterminate();
					  }
					  else
					  {
					    ConfigFileState *fs=includeStack.pop();
					    fclose(fs->filePtr);
					    YY_BUFFER_STATE oldBuf = YY_CURRENT_BUFFER;
					    yy_switch_to_buffer( fs->oldState );
					    yy_delete_buffer( oldBuf );
					    yyLineNr=fs->lineNr;
					    yyFileName=fs->fileName;
					    delete fs; fs=0;
                                            includeDepth--;
					  }
  					}
	YY_BREAK
case 8:
YY_RULE_SETUP
#line 526 "config.l"
{ config_err("Warning: ignoring unknown tag `%s' at line %d, file %s\n",yytext,yyLineNr,yyFileName.data()); }
	YY_BREAK
case 9:
YY_RULE_SETUP
#line 527 "config.l"
{ yyLineNr++; BEGIN(Start); }
	YY_BREAK
case 10:
YY_RULE_SETUP
#line 528 "config.l"
{ 
  					  yyLineNr++; 
					  if (!elemStr.isEmpty())
					  {
					    //printf("elemStr1=`%s'\n",elemStr.data());
					    l->append(elemStr);
					  }
					  BEGIN(Start); 
					}
	YY_BREAK
case 11:
YY_RULE_SETUP
#line 537 "config.l"
{
  				          if (!elemStr.isEmpty())
					  {
					    //printf("elemStr2=`%s'\n",elemStr.data());
  					    l->append(elemStr);
					  }
					  elemStr.resize(0);
  					}
	YY_BREAK
case 12:
YY_RULE_SETUP
#line 545 "config.l"
{ (*s)+=yytext; }
	YY_BREAK
case 13:
YY_RULE_SETUP
#line 546 "config.l"
{ lastState=YY_START;
  					  BEGIN(GetQuotedString); 
                                          tmpString.resize(0); 
					}
	YY_BREAK
case 14:
YY_RULE_SETUP
#line 550 "config.l"
{ 
  					  //printf("Quoted String = `%s'\n",tmpString.data());
  					  if (lastState==GetString)
					    (*s)+=tmpString;
					  else
					    elemStr+=tmpString;
					  if (*yytext=='\n')
					  {
					    config_err("Warning: Missing end quote (\") on line %d, file %s\n",yyLineNr,yyFileName.data());
					    yyLineNr++;
					  }
					  BEGIN(lastState);
  					}
	YY_BREAK
case 15:
YY_RULE_SETUP
#line 563 "config.l"
{
  					  tmpString+='"';
  					}
	YY_BREAK
case 16:
YY_RULE_SETUP
#line 566 "config.l"
{ tmpString+=*yytext; }
	YY_BREAK
case 17:
YY_RULE_SETUP
#line 567 "config.l"
{ 
  					  QCString bs=yytext; 
  					  bs=bs.upper();
  					  if (bs=="YES" || bs=="1")
					    *b=TRUE;
					  else if (bs=="NO" || bs=="0")
					    *b=FALSE;
					  else 
					  {
					    *b=FALSE; 
					    config_warn("Warning: Invalid value `%s' for "
						 "boolean tag in line %d, file %s; use YES or NO\n",
						 bs.data(),yyLineNr,yyFileName.data());
					  }
					}
	YY_BREAK
case 18:
YY_RULE_SETUP
#line 582 "config.l"
{
  					  elemStr+=yytext;
  					}
	YY_BREAK
case 19:
YY_RULE_SETUP
#line 585 "config.l"
{ yyLineNr++; BEGIN(Start); }
	YY_BREAK
case 20:
YY_RULE_SETUP
#line 586 "config.l"
{ yyLineNr++; BEGIN(Start); }
	YY_BREAK
case 21:
YY_RULE_SETUP
#line 587 "config.l"
{ yyLineNr++; }
	YY_BREAK
case 22:
YY_RULE_SETUP
#line 588 "config.l"

	YY_BREAK
case 23:
YY_RULE_SETUP
#line 589 "config.l"
{ yyLineNr++ ; }
	YY_BREAK
case 24:
YY_RULE_SETUP
#line 591 "config.l"
ECHO;
	YY_BREAK

	case YY_END_OF_BUFFER:
		{
		/* Amount of text matched not including the EOB char. */
		int yy_amount_of_matched_text = (int) (yy_cp - yytext_ptr) - 1;

		/* Undo the effects of YY_DO_BEFORE_ACTION. */
		*yy_cp = yy_hold_char;
		YY_RESTORE_YY_MORE_OFFSET

		if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_NEW )
			{
			/* We're scanning a new file or input source.  It's
			 * possible that this happened because the user
			 * just pointed yyin at a new source and called
			 * yylex().  If so, then we have to assure
			 * consistency between yy_current_buffer and our
			 * globals.  Here is the right place to do so, because
			 * this is the first action (other than possibly a
			 * back-up) that will match for the new input source.
			 */
			yy_n_chars = yy_current_buffer->yy_n_chars;
			yy_current_buffer->yy_input_file = yyin;
			yy_current_buffer->yy_buffer_status = YY_BUFFER_NORMAL;
			}

		/* Note that here we test for yy_c_buf_p "<=" to the position
		 * of the first EOB in the buffer, since yy_c_buf_p will
		 * already have been incremented past the NUL character
		 * (since all states make transitions on EOB to the
		 * end-of-buffer state).  Contrast this with the test
		 * in input().
		 */
		if ( yy_c_buf_p <= &yy_current_buffer->yy_ch_buf[yy_n_chars] )
			{ /* This was really a NUL. */
			yy_state_type yy_next_state;

			yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text;

			yy_current_state = yy_get_previous_state();

			/* Okay, we're now positioned to make the NUL
			 * transition.  We couldn't have
			 * yy_get_previous_state() go ahead and do it
			 * for us because it doesn't know how to deal
			 * with the possibility of jamming (and we don't
			 * want to build jamming into it because then it
			 * will run more slowly).
			 */

			yy_next_state = yy_try_NUL_trans( yy_current_state );

			yy_bp = yytext_ptr + YY_MORE_ADJ;

			if ( yy_next_state )
				{
				/* Consume the NUL. */
				yy_cp = ++yy_c_buf_p;
				yy_current_state = yy_next_state;