config.cpp

doxygen(一个自动从源代码生成文档的工具)的源代码

/* The intent behind this definition is that it'll catch
 * any uses of REJECT which flex missed.
 */
#define REJECT reject_used_but_not_detected
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *yytext;
#line 1 "config.l"
#define INITIAL 0
/******************************************************************************
 *
 * $Id: config_templ.l,v 1.8 2001/01/01 10:15:16 root Exp $
 *
 * Copyright (C) 1997-2001 by Dimitri van Heesch.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation under the terms of the GNU General Public License is hereby 
 * granted. No representations are made about the suitability of this software 
 * for any purpose. It is provided "as is" without express or implied warranty.
 * See the GNU General Public License for more details.
 *
 */
#line 16 "config.l"

/*
 *	includes
 */
#include <stdio.h>
#include <stdlib.h>
//#include <iostream.h>
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>

#include <qfileinfo.h>
#include <qdir.h>
#include <qtextstream.h>
#include <qregexp.h>
#include <qstack.h>
  
#include "config.h"
#include "version.h"

#undef Config_getString
#undef Config_getInt
#undef Config_getList
#undef Config_getEnum
#undef Config_getBool

// use in-class definitions
#define Config_getString(val)  getString(__FILE__,__LINE__,val)
#define Config_getInt(val)     getInt(__FILE__,__LINE__,val)
#define Config_getList(val)    getList(__FILE__,__LINE__,val)
#define Config_getEnum(val)    getEnum(__FILE__,__LINE__,val)
#define Config_getBool(val)    getBool(__FILE__,__LINE__,val)
  
void config_err(const char *fmt, ...)
{
  va_list args;
  va_start(args, fmt);
  vfprintf(stderr, fmt, args);
  va_end(args); 
}
void config_warn(const char *fmt, ...)
{
  va_list args;
  va_start(args, fmt);
  vfprintf(stderr, fmt, args);
  va_end(args);
}

#define MAX_INCLUDE_DEPTH 10
#define YY_NEVER_INTERACTIVE 1
#define YY_NO_UNPUT

/* -----------------------------------------------------------------
 */

QCString ConfigOption::convertToComment(const QCString &s)
{
  QCString result;
  if (s.isEmpty()) return result;
  else
  {
    result+="# ";
    QCString tmp=s.stripWhiteSpace();
    char *p=tmp.data();
    char c;
    while ((c=*p++))
    {
      if (c=='\n') result+="\n# ";
      else result+=c;
    }
    result+='\n';
  }
  return result;
}

void ConfigOption::writeBoolValue(QTextStream &t,bool v)
{
  if (v) t << "YES"; else t << "NO";
}

void ConfigOption::writeIntValue(QTextStream &t,int i)
{
  t << i;
}

void ConfigOption::writeStringValue(QTextStream &t,QCString &s)
{
  const char *p=s.data();
  char c;
  bool hasBlanks=FALSE;
  if (p)
  {
    while ((c=*p++)!=0 && !hasBlanks) hasBlanks = (c==' ' || c=='\n' || c=='\t');
    if (hasBlanks) 
      t << "\"" << s << "\"";
    else
      t << s;
  }
}

void ConfigOption::writeStringList(QTextStream &t,QStrList &l)
{
  const char *p = l.first();
  bool first=TRUE;
  while (p)
  {
    char c;
    const char *s=p;
    bool hasBlanks=FALSE;
    while ((c=*p++)!=0 && !hasBlanks) hasBlanks = (c==' ' || c=='\n' || c=='\t');
    if (!first) t << "                         ";
    first=FALSE;
    if (hasBlanks) t << "\"" << s << "\""; else t << s;
    p = l.next();
    if (p) t << " \\" << endl;
  }
}

/* -----------------------------------------------------------------
 */

Config *Config::m_instance = 0;

void ConfigInt::convertStrToVal() 
{
  if (!m_valueString.isEmpty())
  {
    bool ok;
    int val = m_valueString.toInt(&ok);
    if (!ok || val<m_minVal || val>m_maxVal)
    {
      config_warn("Warning: argument `%s' for option %s is not a valid number in the range [%d..%d]!\n"
                "Using the default: %d!\n",m_valueString.data(),m_name.data(),m_minVal,m_maxVal,m_value);
    }
    m_value=val;
  }
}

void ConfigBool::convertStrToVal()
{
  QCString val = m_valueString.stripWhiteSpace().lower();
  if (!val.isEmpty())
  {
    if (val=="yes" || val=="true" || val=="1") 
    {
      m_value=TRUE;
    }
    else if (val=="no" || val=="false" || val=="0")
    {
      m_value=FALSE;
    }
    else
    {
      config_warn("Warning: argument `%s' for option %s is not a valid boolean value\n"
                "Using the default: %s!\n",m_valueString.data(),m_name.data(),m_value?"YES":"NO");
    }
  }
}

QCString &Config::getString(const char *fileName,int num,const char *name) const
{
  ConfigOption *opt = m_dict->find(name);
  if (opt==0) 
  {
    config_err("%s<%d>: Internal error: Requested unknown option %s!\n",fileName,num,name);
    exit(1);
  }
  else if (opt->kind()!=ConfigOption::O_String)
  {
    config_err("%s<%d>: Internal error: Requested option %s not of string type!\n",fileName,num,name);
    exit(1);
  }
  return *((ConfigString *)opt)->valueRef();
}

QStrList &Config::getList(const char *fileName,int num,const char *name) const
{
  ConfigOption *opt = m_dict->find(name);
  if (opt==0) 
  {
    config_err("%s<%d>: Internal error: Requested unknown option %s!\n",fileName,num,name);
    exit(1);
  }
  else if (opt->kind()!=ConfigOption::O_List)
  {
    config_err("%d<%d>: Internal error: Requested option %s not of list type!\n",fileName,num,name);
    exit(1);
  }
  return *((ConfigList *)opt)->valueRef();
}

QCString &Config::getEnum(const char *fileName,int num,const char *name) const
{
  ConfigOption *opt = m_dict->find(name);
  if (opt==0) 
  {
    config_err("%s<%d>: Internal error: Requested unknown option %s!\n",fileName,num,name);
    exit(1);
  }
  else if (opt->kind()!=ConfigOption::O_Enum)
  {
    config_err("%s<%d>: Internal error: Requested option %s not of enum type!\n",fileName,num,name);
    exit(1);
  }
  return *((ConfigEnum *)opt)->valueRef();
}

int &Config::getInt(const char *fileName,int num,const char *name) const
{
  ConfigOption *opt = m_dict->find(name);
  if (opt==0) 
  {
    config_err("%s<%d>: Internal error: Requested unknown option %s!\n",fileName,num,name);
    exit(1);
  }
  else if (opt->kind()!=ConfigOption::O_Int)
  {
    config_err("%s<%d>: Internal error: Requested option %s not of integer type!\n",fileName,num,name);
    exit(1);
  }
  return *((ConfigInt *)opt)->valueRef();
}

bool &Config::getBool(const char *fileName,int num,const char *name) const
{
  ConfigOption *opt = m_dict->find(name);
  if (opt==0) 
  {
    config_err("%s<%d>: Internal error: Requested unknown option %s!\n",fileName,num,name);
    exit(1);
  }
  else if (opt->kind()!=ConfigOption::O_Bool)
  {
    config_err("%s<%d>: Internal error: Requested option %s not of integer type!\n",fileName,num,name);
    exit(1);
  }
  return *((ConfigBool *)opt)->valueRef();
}

/* -----------------------------------------------------------------
 *
 *	static variables
 */

struct ConfigFileState
{
  int lineNr;
  FILE *filePtr;
  YY_BUFFER_STATE oldState;
  YY_BUFFER_STATE newState;
  QCString fileName;
};  

static const char       *inputString;
static int	         inputPosition;
static int               yyLineNr;
static QCString          yyFileName;
static QCString          tmpString;
static QCString         *s=0;
static bool             *b=0;
static QStrList         *l=0;
static int               lastState;
static QCString          elemStr;
static QCString          includeName;
static QStrList          includePathList;
static QStack<ConfigFileState> includeStack;  
static int               includeDepth;

static QCString     tabSizeString;
static QCString     maxInitLinesString;
static QCString     colsInAlphaIndexString;
static QCString     enumValuesPerLineString;
static QCString     treeViewWidthString;
static QCString     maxDotGraphWidthString;
static QCString     maxDotGraphHeightString;

static Config      *config;

/* -----------------------------------------------------------------
 */
#undef	YY_INPUT
#define	YY_INPUT(buf,result,max_size) result=yyread(buf,max_size);

static int yyread(char *buf,int max_size)
{
    // no file included
    if (includeStack.isEmpty()) 
    {
        int c=0;
	while( c < max_size && inputString[inputPosition] )
	{
	      *buf = inputString[inputPosition++] ;
	      c++; buf++;
  	}
	return c;
    } 
    else 
    {
        //assert(includeStack.current()->newState==YY_CURRENT_BUFFER);
	return fread(buf,1,max_size,includeStack.current()->filePtr);
    }
}


static FILE *tryPath(const char *path,const char *fileName)
{
  QCString absName=(QCString)path+"/"+fileName;
  QFileInfo fi(absName);
  if (fi.exists() && fi.isFile())
  {
    FILE *f=fopen(absName,"r");
    if (!f) config_err("Error: could not open file %s for reading\n",absName.data());
    return f;
  }
  return 0;
}

static void substEnvVarsInStrList(QStrList &sl);
static void substEnvVarsInString(QCString &s);

static FILE *findFile(const char *fileName)
{
  substEnvVarsInStrList(includePathList);
  char *s=includePathList.first();
  while (s) // try each of the include paths
  {
    FILE *f = tryPath(s,fileName);
    if (f) return f;
    s=includePathList.next();
  } 
  // try cwd if includePathList fails
  return tryPath(".",fileName);
}

static void readIncludeFile(const char *incName)
{
  if (includeDepth==MAX_INCLUDE_DEPTH) {
    config_err("Error: maximum include depth (%d) reached, %s is not included. Aborting...\n",
	MAX_INCLUDE_DEPTH,incName);
    exit(1);
  } 

  QCString inc = incName;
  substEnvVarsInString(inc);
  inc = inc.stripWhiteSpace();
  uint incLen = inc.length();
  if (inc.at(0)=='"' && inc.at(incLen-1)=='"') // strip quotes
  {
    inc=inc.mid(1,incLen-2);
  }

  FILE *f;

  //printf("Searching for `%s'\n",incFileName.data());
  if ((f=findFile(inc))) // see if the include file can be found
  {
    // For debugging
#if SHOW_INCLUDES
    for (i=0;i<includeStack.count();i++) msg("  ");
    msg("@INCLUDE = %s: parsing...\n",inc.data());
#endif

    // store the state of the old file 
    ConfigFileState *fs=new ConfigFileState;
    fs->oldState=YY_CURRENT_BUFFER;
    fs->lineNr=yyLineNr;
    fs->fileName=yyFileName;
    fs->filePtr=f;
    // push the state on the stack
    includeStack.push(fs);
    // set the scanner to the include file
    yy_switch_to_buffer(yy_create_buffer(f, YY_BUF_SIZE));
    fs->newState=YY_CURRENT_BUFFER;
    yyFileName=inc;
    includeDepth++;
  } 
  else
  {
    config_err("Error: @INCLUDE = %s: not found!\n",inc.data());
    exit(1);
  }
}


#define Start 1

#define SkipComment 2

#define SkipInvalid 3

#define GetString 4

#define GetBool 5

#define GetStrList 6

#define GetQuotedString 7

#define GetEnvVar 8

#define Include 9


/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap YY_PROTO(( void ));
#else
extern int yywrap YY_PROTO(( void ));
#endif
#endif

#ifndef YY_NO_UNPUT
static void yyunput YY_PROTO(( int c, char *buf_ptr ));
#endif

#ifndef yytext_ptr
static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int ));
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen YY_PROTO(( yyconst char * ));
#endif

#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int yyinput YY_PROTO(( void ));
#else
static int input YY_PROTO(( void ));
#endif
#endif

#if YY_STACK_USED
static int yy_start_stack_ptr = 0;
static int yy_start_stack_depth = 0;
static int *yy_start_stack = 0;
#ifndef YY_NO_PUSH_STATE
static void yy_push_state YY_PROTO(( int new_state ));
#endif
#ifndef YY_NO_POP_STATE
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. */