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/*
* file_opml.c -- generic xml import/export filters for hnb
*
* Copyright (C) 2001-2003 yvind Kols <pippin@users.sourceforge.net>
*
* This program 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, or (at your option) any later
* version.
*
* This program 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
* this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "xml_tok.h"
#include "cli.h"
#include "tree.h"
#include "file.h"
#include "prefs.h"
#include "query.h"
#include "util_string.h"
#define indent(count,char) {int j;for(j=0;j<count;j++)fprintf(file,char);}
/* *INDENT-OFF* */
static char *xmlquote[]={
"<","<",
">",">",
"&","&",
"\"",""",
"'","'",
NULL
};
static char *xmlunquote[]={
"<","<",
">",">",
"&","&",
""","\"",
"'","'",
NULL
};
/* *INDENT-ON* */
static void opml_export_nodes (FILE * file, Node *node, int level)
{
while (node) {
fprintf (file, "\n");
indent (level, "\t");
fprintf (file, "<outline");
{Node_AttItem *att=node->attrib;
while(att){
char *quoted=string_replace(att->data,xmlquote);
fprintf (file, " %s=\"%s\"", att->name, quoted);
free(quoted);
att=att->next;
}
}
if (node_right (node)) {
fprintf (file, ">");
opml_export_nodes (file, node_right (node), level + 1);
fprintf (file, "\n");
indent (level, "\t");
fprintf (file, "</outline>");
} else {
fprintf (file, " />");
}
node = node_down (node);
}
}
static void* export_opml (int argc, char **argv, void *data)
{
Node *node = (Node *) data;
char *filename = argc>=2?argv[1]:"";
FILE *file;
if (!strcmp (filename, "-"))
file = stdout;
else
file = fopen (filename, "w");
if (!file) {
cli_outfunf ("opml export, unable to open \"%s\"", filename);
return node;
}
fprintf (file,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
"<?pos=\"%s\"?>\n"
" <!-- generated by hnb %s (http://hnb.sourceforge.net/) -->\n",
argc == 3 ? argv[2] : "1", VERSION);
fprintf (file, "<opml version=\"1.0\">\n\
<head>\n\
<title>outline exported from hnb</title>\n\
<dateCreated></dateCreated>\n\
<dateModified></dateModified>\n\
<ownerName></ownerName>\n\
<ownerEmail></ownerEmail>\n\
<expansionState></expansionState>\n\
<vertScrollState></vertScrollState>\n\
<windowTop>20</windowTop>\n\
<windowLeft>20</windowLeft>\n\
<windowBottom>200</windowBottom>\n\
<windowRight>200</windowRight>\n\
</head>\n\
<body>\n");
opml_export_nodes (file, node, 0);
fprintf (file, "\n</body>\n</opml>\n");
if (file != stdout)
fclose (file);
cli_outfunf ("opml export, wrote data to \"%s\"", filename);
return node;
}
static void* import_opml (int argc, char **argv, void *data)
{
Node *node = (Node *) data;
char *filename = argc==2?argv[1]:"";
char *rdata;
int type;
int in_body = 0;
int in_outlineelement = 0;
int level = -1;
xml_tok_state *s;
import_state_t ist;
Node *tempnode=NULL;
FILE *file;
file = fopen (filename, "r");
if (!file) {
cli_outfunf ("opml import, unable to open \"%s\"", filename);
return node;
}
s = xml_tok_init (file);
init_import (&ist, node);
while (((type = xml_tok_get (s, &rdata)) != t_eof) && (type != t_error)) {
if (type == t_error) {
cli_outfunf ("opml import error, parsing og '%s', line:%i %s", filename,
s->line_no, rdata);
fclose (file);
return node;
}
if (in_body) {
if (type == t_tag && !strcmp (rdata, "outline")) {
level++;
in_outlineelement = 1;
tempnode=node_new();
continue;
}
if (in_outlineelement && type == t_att){
char *att_name=strdup(rdata);
char *unquoted;
if(xml_tok_get(s,&rdata)!=t_val){
cli_outfun("import_opml: hmm I don't think this is according to OPML,..");
};
unquoted=string_replace(rdata,xmlunquote);
node_set(tempnode,att_name,unquoted);
free(unquoted);
free(att_name);
continue;
}
if ((type == t_endtag || type == t_closeemptytag)
&& !strcmp (rdata, "outline")) {
in_outlineelement = 0;
import_node(&ist, level, tempnode); /* will free tempnode */
tempnode=NULL;
}
if ((type == t_closetag || type == t_closeemptytag)
&& !strcmp (rdata, "outline")) {
level--;
continue;
}
} else {
if (type == t_tag && !strcmp (rdata, "body"))
in_body = 1;
}
}
if (node_getflag (node, F_temp))
node = node_remove (node); /* remove temporary node, if tree was empty */
cli_outfunf ("opml import - imported \"%s\" %i lines", filename, s->line_no);
xml_tok_cleanup (s);
return node;
}
/*
!init_file_opml();
*/
void init_file_opml ()
{
cli_add_command ("export_opml", export_opml, "<filename>");
cli_add_command ("import_opml", import_opml, "<filename>");
}
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