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Parsing seems to work at least.

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This commit is contained in:
Themaister 2011-04-17 15:58:18 +02:00
parent 092fa9d531
commit 66464c2cce
1 changed files with 67 additions and 3 deletions
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70
cheats.c
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@ -19,10 +19,12 @@
#include "sha256.h" #include "sha256.h"
#include "dynamic.h" #include "dynamic.h"
#include "general.h" #include "general.h"
#include "strl.h"
#include <stdlib.h> #include <stdlib.h>
#include <stddef.h> #include <stddef.h>
#include <string.h> #include <string.h>
#include <assert.h>
#include <libxml/parser.h> #include <libxml/parser.h>
#include <libxml/tree.h> #include <libxml/tree.h>
@ -39,8 +41,52 @@ struct cheat_manager
struct cheat *cheats; struct cheat *cheats;
unsigned ptr; unsigned ptr;
unsigned size; unsigned size;
unsigned buf_size;
}; };
static char* strcat_alloc(char *dest, const char *input)
{
size_t dest_len = dest ? strlen(dest) : 0;
size_t input_len = strlen(input);
size_t required_len = dest_len + input_len + 1;
char *output = realloc(dest, required_len);
assert(output);
if (dest)
strlcat(output, input, required_len);
else
strlcpy(output, input, required_len);
return output;
}
static void xml_grab_cheat(struct cheat *cht, xmlNodePtr ptr)
{
memset(cht, 0, sizeof(struct cheat));
bool first = true;
for (xmlNodePtr node = ptr; node; node = node->next)
{
if (strcmp((const char*)node->name, "description") == 0)
{
cht->desc = (char*)xmlNodeGetContent(node);
}
else if (strcmp((const char*)node->name, "code") == 0)
{
if (!first)
cht->code = strcat_alloc(cht->code, "+");
xmlChar *code = xmlNodeGetContent(node);
assert(code);
cht->code = strcat_alloc(cht->code, (const char*)code);
xmlFree(code);
first = false;
}
}
}
static void xml_grab_cheats(cheat_manager_t *handle, xmlNodePtr ptr) static void xml_grab_cheats(cheat_manager_t *handle, xmlNodePtr ptr)
{ {
xmlNodePtr node = NULL; xmlNodePtr node = NULL;
@ -55,6 +101,17 @@ static void xml_grab_cheats(cheat_manager_t *handle, xmlNodePtr ptr)
xmlFree(name); xmlFree(name);
} }
} }
else if (strcmp((const char*)node->name, "cheat") == 0)
{
if (handle->size == handle->buf_size)
{
handle->buf_size *= 2;
handle->cheats = realloc(handle->cheats, handle->buf_size * sizeof(struct cheat));
assert(handle->cheats);
}
xml_grab_cheat(&handle->cheats[handle->size++], node->children);
}
} }
} }
@ -62,12 +119,19 @@ cheat_manager_t* cheat_manager_new(const char *path)
{ {
psnes_cheat_reset(); psnes_cheat_reset();
xmlParserCtxtPtr ctx = NULL;
xmlDocPtr doc = NULL;
cheat_manager_t *handle = calloc(1, sizeof(handle)); cheat_manager_t *handle = calloc(1, sizeof(handle));
if (!handle) if (!handle)
return NULL; return NULL;
xmlParserCtxtPtr ctx = NULL; handle->buf_size = 32;
xmlDocPtr doc = NULL; handle->cheats = malloc(handle->buf_size * sizeof(struct cheat));
if (!handle->cheats)
{
handle->buf_size = 0;
goto error;
}
ctx = xmlNewParserCtxt(); ctx = xmlNewParserCtxt();
if (!ctx) if (!ctx)
@ -146,7 +210,7 @@ void cheat_manager_free(cheat_manager_t *handle)
for (unsigned i = 0; i < handle->size; i++) for (unsigned i = 0; i < handle->size; i++)
{ {
xmlFree(handle->cheats[i].desc); xmlFree(handle->cheats[i].desc);
xmlFree(handle->cheats[i].code); free(handle->cheats[i].code);
} }
free(handle->cheats); free(handle->cheats);