/
pr_query_parser.c
137 lines (119 loc) · 2.86 KB
/
pr_query_parser.c
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#include "ruby.h"
#include <stdio.h>
#include <ctype.h>
#include <curl/curl.h>
static void
pr_set_param(VALUE params, char *key, char *value)
{
VALUE rkey, rvalue, cur;
char *v;
/* no key do nothing */
if (key == NULL || *key == 0) return;
/* strip [] from the key name */
v = curl_easy_unescape(NULL, key, 0, NULL);
if (strlen(v) > 2)
{
char *t = v;
char *open_bracket = NULL;
while (*(t + 1) != 0)
{
if (*t == '[') open_bracket = t;
t++;
}
if ((*t == ']') && (open_bracket != NULL))
{
char *pos = (open_bracket + 1);
int is_digit = 1;
while (pos != t)
{
if (!isdigit(*pos))
{
is_digit = 0;
break;
}
pos ++;
}
if ((*t == ']') && (*(t - 1) == '['))
{
*(t - 1) = 0;
}
else if ((*t == ']') && (*open_bracket == '[') && is_digit)
{
*open_bracket = 0;
}
}
}
/* key was only [], do nothing */
if (v == NULL || *v == 0) return;
rkey = rb_str_new2(v);
free(v);
v = curl_easy_unescape(NULL, value, 0, NULL);
rvalue = rb_str_new2(v);
free(v);
cur = rb_hash_aref(params, rkey);
if (NIL_P(cur))
{
rb_hash_aset(params, rkey, rvalue);
}
else
{
VALUE arry;
if (rb_obj_is_kind_of(cur, rb_cArray) == Qtrue)
{
arry = cur;
}
else
{
arry = rb_ary_new();
rb_ary_push(arry, cur);
rb_hash_aset(params, rkey, arry);
}
rb_ary_push(arry, rvalue);
}
}
VALUE
pr_query_parser(VALUE self, VALUE query_string, VALUE delim)
{
VALUE params = Qnil;
char *qs, *p, *s, *key = NULL;
char delimiter = RSTRING_PTR(delim)[0];
params = rb_hash_new();
qs = strdup(RSTRING_PTR(query_string));
for (s = qs, p = qs; *p != 0; p++)
{
if (*p == delimiter)
{
*p = 0;
if (key != NULL)
{
pr_set_param(params, key, s);
key = NULL;
}
else
{
pr_set_param(params, s, s);
}
s = (p + 1);
}
else if ((*p == '=') && (key == NULL))
{
*p = 0;
key = s;
s = (p + 1);
}
}
if (s != NULL)
{
if (key != NULL) pr_set_param(params, key, s);
else pr_set_param(params, s, s);
}
free(qs);
return params;
self = self;
}
void
Init_pr_query_parser(void)
{
VALUE QueryStringParser = rb_define_module("QueryStringParser");
rb_define_module_function(QueryStringParser, "pr_query_parser", pr_query_parser, 2);
}