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#include <stdlib.h>
#include <string.h>
#include "xml.h"
static char *gettag(char *xml, int *pos);
static char *getvalue(char *xml, int *pos);
map_t *decode(char *xml, int *pos, int *len)
{
printf("%s\n", xml);
if (*len)
++(*len);
else
*len = 1;
map_t *decoded = calloc(1, sizeof(map_t));
decoded->payload = NULL;
char *tag = NULL;
int err = 0;
for (int i = *pos; i < strlen(xml); ++i) {
if (xml[i] == '<') {
++i;
if (xml[i] == '/') {
++i;
char *tmp = gettag(xml, &i);
if (!strcmp(tag, tmp)) {
free(tmp);
*pos = i + 1;
goto end;
} else {
err = 1;
free(tmp);
goto end;
}
}
else if (!tag)
tag = gettag(xml, &i);
} else if (xml[i] == '>') {
++i;
if (xml[i] == '<') {
map_t *ndec = decode(xml, &i, &(decoded->n));
free(ndec);
} else {
char *value = getvalue(xml, &i);
printf("%s\n", value);
free(value);
}
}
}
end:
if (err) {
free(decoded);
decoded = NULL;
}
free(tag);
return decoded;
}
static char *gettag(char *xml, int *pos)
{
int len, i;
for (i = *pos, len = 0; xml[i] != '>'; ++i, ++len) ;
char *title = calloc(len + 1, sizeof(char));
strncpy(title, xml + *pos, len);
*pos += len - 1;
return title;
}
static char *getvalue(char *xml, int *pos)
{
int len, i;
for (i = *pos, len = 0; xml[i] != '<'; ++i, ++len) ;
char *value = calloc(len + 1, sizeof(char));
strncpy(value, xml + *pos, len);
*pos += len - 1;
return value;
}
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