You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
sems/core/AmConfigReader.cpp

114 lines
2.1 KiB

#include "AmConfigReader.h"
#include "log.h"
#include "AmUtils.h"
#include <errno.h>
#define IS_SPACE(c) ((c == ' ') || (c == '\t'))
#define IS_EOL(c) ((c == '\0')||(c == '#'))
#define TRIM(s) \
do{ \
while( IS_SPACE(*s) ) s++; \
}while(false)
int AmConfigReader::loadFile(const string& path)
{
FILE* fp = fopen(path.c_str(),"r");
if(!fp){
ERROR("could not open configuration file '%s': %s\n",
path.c_str(),strerror(errno));
return -1;
}
int lc = 0;
int ls = 0;
char lb[MAX_CONFIG_LINE] = {'\0'};
char *c,*key_beg,*key_end,*val_beg,*val_end;
c=key_beg=key_end=val_beg=val_end=0;
while(!feof(fp) && ((ls = fifo_get_line(fp, lb, MAX_CONFIG_LINE)) != -1)){
c=key_beg=key_end=val_beg=val_end=0;
lc++;
c = lb;
TRIM(c);
if(IS_EOL(*c)) continue;
key_beg = c;
while( (*c != '=') && !IS_SPACE(*c) ) c++;
key_end = c;
if(IS_SPACE(*c))
TRIM(c);
else if( !(c - key_beg) )
goto syntax_error;
if(*c != '=')
goto syntax_error;
c++;
TRIM(c);
if(*c == '"'){
val_beg = ++c;
while( (*c != '"') && (*c != '\0') ) c++;
if(*c == '\0')
goto syntax_error;
val_end = c;
}
else {
val_beg = c;
while( !IS_EOL(*c) && !IS_SPACE(*c) ) c++;
val_end = c;
}
if((key_beg < key_end) && (val_beg < val_end))
keys[string(key_beg,key_end-key_beg)] =
string(val_beg,val_end-val_beg);
else
goto syntax_error;
}
fclose(fp);
return 0;
syntax_error:
ERROR("syntax error line %i in %s\n",lc,path.c_str());
fclose(fp);
return -1;
}
bool AmConfigReader::hasParameter(const string& param)
{
return (keys.find(param) != keys.end());
}
const string& AmConfigReader::getParameter(const string& param, const string& defval)
{
map<string,string>::iterator it = keys.find(param);
if(it == keys.end())
return defval;
else
return it->second;
}
unsigned int AmConfigReader::getParameterInt(const string& param, unsigned int defval)
{
unsigned int result=0;
if(str2i(getParameter(param),result))
return defval;
else
return result;
}