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#include "ruby_libxml.h"
#include <string.h>
#include <libxml/xmlIO.h>
/*
int xmlRegisterInputCallbacks (xmlInputMatchCallback matchFunc,
xmlInputOpenCallback openFunc,
xmlInputReadCallback readFunc,
xmlInputCloseCallback closeFunc);
int (*xmlInputMatchCallback) (char const *filename);
void* (*xmlInputOpenCallback) (char const *filename);
int (*xmlInputReadCallback) (void *context,
char *buffer,
int len);
int (*xmlInputCloseCallback) (void *context);
*/
typedef struct deb_doc_context
{
char *buffer;
char *bpos;
int remaining;
} deb_doc_context;
int deb_Match(char const *filename)
{
fprintf(stderr, "deb_Match: %s\n", filename);
if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "deb://", 6))
{
return (1);
}
return (0);
}
void* deb_Open(char const *filename)
{
deb_doc_context *deb_doc;
VALUE res;
deb_doc = (deb_doc_context*) malloc(sizeof(deb_doc_context));
res = rb_funcall(rb_funcall(rb_mKernel, rb_intern("const_get"), 1,
rb_str_new2("DEBSystem")), rb_intern("document_query"), 1, rb_str_new2(filename));
deb_doc->buffer = strdup(StringValuePtr(res));
//deb_doc->buffer = strdup("<serepes>serepes</serepes>");
deb_doc->bpos = deb_doc->buffer;
deb_doc->remaining = strlen(deb_doc->buffer);
return deb_doc;
}
int deb_Read(void *context, char *buffer, int len)
{
deb_doc_context *deb_doc;
int ret_len;
deb_doc = (deb_doc_context*) context;
if (len >= deb_doc->remaining)
{
ret_len = deb_doc->remaining;
}
else
{
ret_len = len;
}
deb_doc->remaining -= ret_len;
strncpy(buffer, deb_doc->bpos, ret_len);
deb_doc->bpos += ret_len;
return ret_len;
}
int deb_Close(void *context)
{
free(((deb_doc_context*) context)->buffer);
free(context);
return 1;
}
void deb_register_cbg()
{
xmlRegisterInputCallbacks(deb_Match, deb_Open, deb_Read, deb_Close);
}
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