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/********************************************************************
* Description: inifile.hh
* Declarations for INI file format functions
*
* Derived from a work by Fred Proctor & Will Shackleford
*
* Author:
* License: GPL Version 2
* System: Linux
*
* Copyright (c) 2004 All rights reserved.
*
* Last change:
********************************************************************/
#ifndef INIFILE_HH
#define INIFILE_HH
#include <inifile.h>
#include <string>
#include <boost/lexical_cast.hpp>
#ifndef __cplusplus
#warning Inclusion of <inifile.hh> from C programs is deprecated. Include <inifile.h> instead.
#endif
#ifdef __cplusplus
#include <fcntl.h>
class IniFile {
public:
typedef enum {
ERR_NONE = 0x00,
ERR_NOT_OPEN = 0x01,
ERR_SECTION_NOT_FOUND = 0x02,
ERR_TAG_NOT_FOUND = 0x04,
ERR_CONVERSION = 0x08,
ERR_LIMITS = 0x10,
ERR_OVER_EXTENDED = 0x20,
} ErrorCode;
class Exception {
public:
ErrorCode errCode;
const char * tag;
const char * section;
int num;
unsigned int lineNo;
void Print(FILE *fp=stderr);
};
IniFile(int errMask=0, FILE *fp=NULL);
~IniFile(void){ Close(); }
bool Open(const char *file);
bool Close(void);
bool IsOpen(void){ return(fp != NULL); }
const char * Find(const char *tag, const char *section=NULL,
int num = 1, int *lineno = NULL);
template<class T>
ErrorCode Find(T *result, T min, T max,
const char *tag,const char *section,
int num=1) {
ErrorCode errCode;
T tmp;
if((errCode = Find(&tmp, tag, section, num)) != ERR_NONE)
return(errCode);
if((tmp > max) || (tmp < min)) {
ThrowException(ERR_LIMITS);
return(ERR_LIMITS);
}
*result = tmp;
return(ERR_NONE);
}
template<class T>
ErrorCode Find(T *result,
const char *tag,const char *section,
int num=1) {
ErrorCode errCode;
std::string tmp;
if((errCode = Find(&tmp, tag, section, num)) != ERR_NONE)
return(errCode);
try {
*result = boost::lexical_cast<T>(tmp);
} catch (boost::bad_lexical_cast &) {
ThrowException(ERR_CONVERSION);
return(ERR_CONVERSION);
}
return(ERR_NONE);
}
ErrorCode Find(std::string *s,
const char *tag,const char *section,
int num=1) {
const char *tmp = Find(tag, section, num);
if(!tmp)
return ERR_TAG_NOT_FOUND; // can't distinguish errors, ugh
*s = tmp;
return(ERR_NONE);
}
const char * FindString(char *dest, size_t n,
const char *tag, const char *section=NULL,
int num = 1, int *lineno = NULL);
const char * FindPath(char *dest, size_t n,
const char *tag, const char *section=NULL,
int num = 1, int *lineno = NULL);
void EnableExceptions(int _errMask){
errMask = _errMask;
}
ErrorCode TildeExpansion(const char *file, char *path,
size_t n);
protected:
struct StrIntPair {
const char *pStr;
int value;
};
struct StrDoublePair {
const char *pStr;
double value;
};
ErrorCode Find(double *result, StrDoublePair *,
const char *tag, const char *section=NULL,
int num = 1, int *lineno = NULL);
ErrorCode Find(int *result, StrIntPair *,
const char *tag, const char *section=NULL,
int num = 1, int *lineno = NULL);
private:
FILE *fp;
struct flock lock;
bool owned;
Exception exception;
int errMask;
unsigned int lineNo;
const char * tag;
const char * section;
int num;
bool CheckIfOpen(void);
bool LockFile(void);
void ThrowException(ErrorCode);
char *AfterEqual(const char *string);
char *SkipWhite(const char *string);
};
#endif
#endif
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