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note.c
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note.c
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/* -*- Mode: c; c-basic-offset: 2 -*-
*
* note.c - Flickcurl note functions
*
* Copyright (C) 2010, David Beckett https://www.dajobe.org/
*
* This file is licensed under the following three licenses as alternatives:
* 1. GNU Lesser General Public License (LGPL) V2.1 or any newer version
* 2. GNU General Public License (GPL) V2 or any newer version
* 3. Apache License, V2.0 or any newer version
*
* You may not use this file except in compliance with at least one of
* the above three licenses.
*
* See LICENSE.html or LICENSE.txt at the top of this package for the
* complete terms and further detail along with the license texts for
* the licenses in COPYING.LIB, COPYING and LICENSE-2.0.txt respectively.
*
*/
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef WIN32
#include <win32_flickcurl_config.h>
#endif
#include <flickcurl.h>
#include <flickcurl_internal.h>
/**
* flickcurl_free_note:
* @note: note object
*
* Destructor for note object
*/
void
flickcurl_free_note(flickcurl_note *note)
{
FLICKCURL_ASSERT_OBJECT_POINTER_RETURN(note, flickcurl_note);
if(note->author)
free(note->author);
if(note->authorname)
free(note->authorname);
if(note->text)
free(note->text);
free(note);
}
flickcurl_note**
flickcurl_build_notes(flickcurl* fc, flickcurl_photo* photo,
xmlXPathContextPtr xpathCtx, const xmlChar* xpathExpr,
int* note_count_p)
{
flickcurl_note** notes = NULL;
int nodes_count;
int note_count;
int i;
xmlXPathObjectPtr xpathObj = NULL;
xmlNodeSetPtr nodes;
/* Now do notes */
xpathObj = xmlXPathEvalExpression(xpathExpr, xpathCtx);
if(!xpathObj) {
flickcurl_error(fc, "Unable to evaluate XPath expression \"%s\"",
xpathExpr);
fc->failed = 1;
goto tidy;
}
nodes = xpathObj->nodesetval;
/* This is a max size - it can include nodes that are CDATA */
nodes_count = xmlXPathNodeSetGetLength(nodes);
notes = (flickcurl_note**)calloc(nodes_count+1, sizeof(flickcurl_note*));
for(i = 0, note_count = 0; i < nodes_count; i++) {
xmlNodePtr node = nodes->nodeTab[i];
xmlAttr* attr;
flickcurl_note* n;
xmlNodePtr chnode;
if(node->type != XML_ELEMENT_NODE) {
flickcurl_error(fc, "Got unexpected node type %d", node->type);
fc->failed = 1;
break;
}
n = (flickcurl_note*)calloc(1, sizeof(flickcurl_note));
for(attr = node->properties; attr; attr = attr->next) {
size_t attr_len = strlen((const char*)attr->children->content);
const char *attr_name = (const char*)attr->name;
char *attr_value;
attr_value = (char*)malloc(attr_len + 1);
memcpy(attr_value, attr->children->content, attr_len + 1);
if(!strcmp(attr_name, "id")) {
n->id = atoi(attr_value);
free(attr_value);
} else if(!strcmp(attr_name, "author"))
n->author = attr_value;
else if(!strcmp(attr_name, "authorname"))
n->authorname = attr_value;
else if(!strcmp(attr_name, "x")) {
n->x = atoi(attr_value);
free(attr_value);
} else if(!strcmp(attr_name, "y")) {
n->y = atoi(attr_value);
free(attr_value);
} else if(!strcmp(attr_name, "w")) {
n->w = atoi(attr_value);
free(attr_value);
} else if(!strcmp(attr_name, "h")) {
n->h = atoi(attr_value);
free(attr_value);
} else
free(attr_value);
}
/* Walk children nodes for text */
for(chnode = node->children; chnode; chnode = chnode->next) {
if(chnode->type == XML_TEXT_NODE) {
size_t len = strlen((const char*)chnode->content);
n->text = (char*)malloc(len + 1);
memcpy(n->text, chnode->content, len + 1);
}
}
#if FLICKCURL_DEBUG > 1
fprintf(stderr, "note: id %d author ID %s name %s x %d y %d w %d h %d text '%s'\n",
n->id, n->author, n->authorname, n->x, n->y, n->w, n->h, n->text);
#endif
notes[note_count++] = n;
} /* for nodes */
if(note_count_p)
*note_count_p = note_count;
tidy:
if(xpathObj)
xmlXPathFreeObject(xpathObj);
return notes;
}