parse.cpp

来自「包含客户和服务器的升级程序,在linux下可以运行的.」· C++ 代码 · 共 64 行

/*
 * Copyright (C) 2006, Binary Ma
 * Licence: GNU GPL 1991 - version 2
 * Bug report: [e-mail]
*/

#include "parse.h"
#include <stdio.h>
#include <string.h>
#include <ctype.h>

static const char* VERSION = "0.6.2";

static char* trim( char* str )
{
    if( NULL == str )
        return NULL;
    
    while( isspace( *str ) )
        str++;
    
    int len = strlen( str );
    while( len-- )
    {
        if( 0 == isspace( str[len] ) )
        {
            str[len + 1] = 0;
            break;
        }
    }
    
    return str;
}

char* parse( const char* file, const char* key, char compart )
{
    if( NULL == file || NULL == key )
        return NULL;
		
    FILE* config = fopen( file, "r" );
    if( NULL == config )
        return NULL;

    static char buf[1024];
    char* retval = NULL;
    char* point = NULL;
    while( NULL != fgets( buf, sizeof( buf ), config ) )
    {
        point = strchr( buf, compart );
        if( NULL == point )
            continue;

        *point++ = 0;
        if( 0 == strcmp( trim( buf ), key ) )
        {
            retval = trim( point );
            break;
        }
    }

    fclose( config );
    return retval;
}