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-rw-r--r--src/tocxml.c264
1 files changed, 264 insertions, 0 deletions
diff --git a/src/tocxml.c b/src/tocxml.c
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index 0000000..3740326
--- /dev/null
+++ b/src/tocxml.c
@@ -0,0 +1,264 @@
+/*
+ * Copyright 2006 Nick White
+ *
+ * This file is part of GetHT
+ *
+ * GetHT is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * GetHT is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GetHT; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <libxml/xmlmemory.h>
+#include <libxml/parser.h>
+
+#include "issue.h"
+#include "getht.h"
+
+iss ** parsetoc(char *filepath, int * iss_no, int * latest);
+int parseissue(xmlDocPtr file, xmlNodePtr node, iss * cur_issue, int * latest);
+void parsesection(xmlDocPtr file, xmlNodePtr node, sec * cur_section);
+
+void tokenise_hyphons(char to_token[10], int * first, int * last);
+
+int no_of_issues;
+
+iss ** parsetoc(char *filepath, int * iss_no, int * latest)
+/* starts parsing of xml to issue structure */
+{
+ xmlDocPtr file;
+ xmlNodePtr node;
+
+ if(ready_xml(filepath, "issues", &file, &node))
+ return NULL;
+
+ *node = *node->xmlChildrenNode;
+
+ no_of_issues = -1;
+
+ iss ** issue = NULL;
+
+ int year;
+
+ xmlNodePtr cnode;
+
+ while(node != NULL)
+ {
+ if(!xmlStrncmp(node->name,(char *) "year",4))
+ {
+ cnode = node->children;
+ while(cnode != NULL)
+ {
+ if(!xmlStrncmp(cnode->name,(char *) "issue",5))
+ {
+ /* assign memory for the new issue */
+ issue = assignnew_iss(issue, &no_of_issues);
+
+ /* setup issue globals */
+ issue[no_of_issues]->no_of_media = -1;
+ issue[no_of_issues]->no_of_sections = -1;
+ issue[no_of_issues]->date.year =
+ atoi( (const char *)(xmlStrsub(node->name,5,4)) );
+ tokenise_hyphons(
+ xmlStrsub(cnode->name,6,5),
+ &(issue[no_of_issues]->date.firstmonth),
+ &(issue[no_of_issues]->date.lastmonth));
+
+ /* parse the issue */
+ parseissue(file, cnode, issue[no_of_issues], latest);
+ }
+ cnode = cnode->next;
+ }
+ }
+ node = node->next;
+ }
+
+ xmlFreeDoc(file);
+
+ *iss_no = no_of_issues;
+
+ issuesort(issue, no_of_issues);
+
+ return issue;
+}
+
+int parseissue(xmlDocPtr file, xmlNodePtr node, iss * cur_issue, int * latest)
+/* parses issue from xml, saving in cur_issue structure */
+{
+ strncpy(cur_issue->title, (char *) xmlGetProp(node, "title"), STR_MAX);
+ strncpy(cur_issue->preview_uri, (char *) xmlGetProp(node, "coverlink"), STR_MAX);
+
+ if(xmlGetProp(node, "current") && *latest==-1)
+ *latest = no_of_issues;
+
+ node = node->xmlChildrenNode;
+
+ while(node != NULL){
+ if(!xmlStrncmp(node->name, (char *) "section",7) ||
+ !xmlStrcmp(node->name, (const xmlChar *) "cover"))
+ {
+ /* assign memory for new section */
+ cur_issue->section =
+ assignnew_sec(cur_issue->section, &(cur_issue->no_of_sections));
+
+ /* setup section globals */
+ cur_issue->section[cur_issue->no_of_sections]->no_of_items = -1;
+
+ /* parse the section */
+ parsesection(file, node, cur_issue->section[cur_issue->no_of_sections]);
+ }
+ node = node->next;
+ }
+
+ return 0;
+}
+
+void parsesection(xmlDocPtr file, xmlNodePtr node, sec * cur_section)
+/* parses section xml, filling cur_section structure */
+{
+ it * cur_item = NULL;
+
+ strncpy(cur_section->uri, (char *) xmlGetProp(node, "pdflink"), STR_MAX);
+ strncpy(cur_section->title, (char *) xmlGetProp(node, "title"), STR_MAX);
+
+ if(!xmlStrcmp(node->name, (const xmlChar *) "cover"))
+ cur_section->number = 0;
+ else
+ cur_section->number = atoi( (const char *)(xmlStrsub(node->name,8,1)) );
+
+ node = node->xmlChildrenNode;
+
+ char * pagenums;
+
+ it ** tmp = NULL;
+
+ while(node != NULL)
+ {
+ if(!xmlStrcmp(node->name, (const xmlChar *) "item"))
+ {
+ if(xmlNodeListGetString(file, node->xmlChildrenNode, 1) != NULL)
+ /* ignore items without titles */
+ {
+ /* assign memory for new item */
+ cur_section->item =
+ assignnew_it( cur_section->item, &(cur_section->no_of_items));
+
+ cur_item = cur_section->item[cur_section->no_of_items];
+
+ /* parse item */
+ cur_item->title = xmlNodeListGetString(file, node->xmlChildrenNode, 1);
+ if(pagenums = (char *) xmlGetProp(node, "pages"))
+ tokenise_hyphons(pagenums, &(cur_item->firstpage), &(cur_item->lastpage));
+ else
+ {
+ cur_item->firstpage = 0;
+ cur_item->lastpage = 0;
+ }
+ }
+ }
+ node = node->next;
+ }
+}
+
+void tokenise_hyphons(char to_token[10], int * first, int * last)
+/* splits string to_token, filling positions passed */
+{
+ char token[10];
+ char * tmp;
+
+ tmp = token;
+
+ while(*to_token != '-' && *to_token)
+ {
+ *tmp = *to_token;
+ to_token++; tmp++;
+ }
+
+ *first = atoi(token);
+
+ if(!*to_token)
+ *last = *first;
+ else
+ {
+ to_token++; /* advance past '-' */
+ tmp = token; /* reset tmp */
+ while(*to_token)
+ {
+ *tmp = *to_token;
+ tmp++; to_token++;
+ }
+ *last = atoi(token);
+ }
+}
+
+int cur_identifiers(char * filepath, char * title, issdates * date)
+/* parses xml file to ascertain current issue title and date */
+{
+ xmlDocPtr file;
+
+ if((file = xmlParseFile(filepath)) == NULL)
+ {
+ return 1;
+ }
+
+ xmlNodePtr node,cnode;
+
+ node = xmlDocGetRootElement(file);
+
+ if(node == NULL)
+ {
+ fprintf(stderr,"Error: xml file %s has no root element",filepath);
+ xmlFreeDoc(file);
+ return 1;
+ }
+
+ if(xmlStrcmp(node->name, (const xmlChar *) "issues"))
+ {
+ fprintf(stderr,"Document of the wrong type, root node is '%s' (expected 'issues').\n",(char *) node->name);
+ fprintf(stderr,"Continuing regardless...\n");
+ }
+
+ /* Now that's all sorted, let's do some work */
+
+ node = node->xmlChildrenNode;
+
+ xmlChar *temp;
+ while(node != NULL)
+ {
+ if(!xmlStrncmp(node->name,(char *) "year",4))
+ {
+ cnode = node->children;
+ while(cnode != NULL)
+ {
+ if(!xmlStrncmp(cnode->name,(char *) "issue",5))
+ {
+ temp = xmlGetProp(cnode, "current");
+ if(temp)
+ {
+ strncpy(title, (char *) xmlGetProp(cnode, "title"), STR_MAX);
+ date->year = atoi( (const char *)(xmlStrsub(node->name,5,4)) );
+ tokenise_hyphons(xmlStrsub(cnode->name,6,5), &(date->firstmonth), &(date->lastmonth));
+ return 0;
+ }
+ }
+ cnode = cnode->next;
+ }
+ }
+ node = node->next;
+ }
+
+ return 0;
+}
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