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i2p.i2p/apps/sam/c/src/parse.c

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#include "parse.h"
#include <assert.h>
#include <ctype.h>
#include <malloc.h>
#define _GNU_SOURCE
#include <string.h>
args_t arg_parse(const char* line_raw) {
args_t self;
int numargs = 0;
const char *end, *last;
/* First pass to count how many args... */
end = line_raw;
while(*end && isspace(*end)) ++end;
//Skip initial space...
for(;;) {
while(*end && !isspace(*end)) ++end;
//Go to end of argument
++numargs;
while(*end && isspace(*end)) ++end;
//Go to end of space after argument
if(!*end) break;
}
self.num = numargs; // One more # args than spaces.
self.arg = malloc(sizeof(arg_t)*numargs);
/* Second pass to assign args. (Lemee alone, is more efficient than a linked list!) */
last = line_raw;
numargs = 0; //Now numargs is which current arg.
end = line_raw;
while(*end && isspace(*end)) ++end;
//Skip initial space...
for(;;) {
arg_t* nextarg = self.arg + numargs;;
const char* isbinary;
while(*end && !isspace(*end)) ++end;
//Go to end of argument
isbinary = strchr(last,'='); //Is there a value?
//Make sure not to pass end in our search for =
if(isbinary && (isbinary < end)) {
nextarg->name = string_ncreate(last,isbinary-last);
nextarg->value = string_ncreate(isbinary+1,end-isbinary-1);
} else {
nextarg->name = string_ncreate(last,end-last);
nextarg->value = string_create(NULL);
}
++numargs;
while(*end && isspace(*end)) ++end;
//Go to end of space after argument
if(!*end) break;
last = end;
}
return self;
}
void arg_done(args_t self) {
free(self.arg);
self.arg = NULL;
self.num = 0;
}
arg_t* arg_get(args_t self, int index) {
if(index >= self.num) return NULL;
return self.arg + index;
}
arg_t* arg_find(args_t self,string_t testname) {
int index;
for(index=0;index<self.num;++index) {
if(string_equali(self.arg[index].name,testname)) {
return self.arg + index;
}
}
return NULL;
}