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66 lines
2.7 KiB
Text
66 lines
2.7 KiB
Text
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// $Id: parse.c,v 1.10 2005/03/14 10:23:28 lynx Exp $ // vim:syntax=lpc
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//
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// the actual RSS parser
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// why the file is called "parse.c" i don't know
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// it certainly wouldn't be a good idea to have several parsers in one file
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// so you may as well rename it into rss.c? TODO
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//
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#include <net.h>
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inherit NET_PATH "xml/common";
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xmlparse(str) {
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// DOM-style XML parser for parsing RSS and RDF
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// see CHANGESTODO for discussion on how to make it compliant
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mapping dom;
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string namespace;
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string tag, lasttag, data, params;
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int pos, close;
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pos = 0;
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close = -1;
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namespace = "";
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dom = ([ ]);
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while(pos = strstr(str, "<", pos) + 1){
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// D2(D("looping xmlparser...\n");)
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data = xmlunquote(str[close + 1..pos - 2]);
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close = strstr(str, ">", pos);
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sscanf(str[pos..close - 1], "%s%t%s", tag, params) || tag = str[pos..close - 1];
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if (strlen(tag) && (tag[0] == '!' || tag[0] == '?' || tag[0..2] == "rdf" || tag[0..2] == "rss")) {
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if(tag[0..2] == "rdf" || tag[0..2] == "rss")
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dom["type"] = tag[0..2];
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} else if (strlen(tag) && tag[0] == '/') {
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// D2(D("closing " + tag + "\n");)
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// closing tag
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if (tag[1..] != lasttag){
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// D2(D("warning: XML may be malformed\n");)
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;
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} else {
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// handle data
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if (data != "\n") {
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if (stringp(dom[namespace]) )
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dom[namespace] = ({ dom[namespace], data });
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else if (pointerp(dom[namespace]))
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dom[namespace] += ({ data });
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else
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dom[namespace] = data;
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}
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namespace = namespace[..<strlen(lasttag) + 2];
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lasttag = explode(namespace, "_")[<1];
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}
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} else {
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// open tag
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if ((params && params[<1] == '/') || tag[<1] == '/') {
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// better than before, but not really
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// correct to simply skip it
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continue;
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}
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// D2(D("opening " + tag + "\n");)
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namespace += "_" + tag;
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lasttag = tag;
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}
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pos = close;
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}
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// P2(("DOM: %O\n", dom))
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return dom;
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}
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