mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-12-01 09:26:37 +00:00
1209 lines
38 KiB
JavaScript
1209 lines
38 KiB
JavaScript
/* Combined Wiki (MediaWiki) and HTML tokenizer. Produces a token stream
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** (actually a list of tokens for now) suitable for a HTML5TreeBuilder. */
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{
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/* Fixme: use static functions to separate module! Unfortunately, this
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* does not work:
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* var tu = require('./mediawiki.tokenizer.utils.js');
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* console.log(tu.flatten([]));
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* Using exports in the module gets a bit further, but accesses to
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* tu.flatten in productions still fail. Thus, I just moved the functions
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* here until a solution is found:
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*/
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/* Static utilities */
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// Flatten a list of lists.
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var flatten = function ( e ) {
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var es = [];
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// flatten sub-arrays
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for(var i = 0, length = e.length; i < length; i++) {
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var ei = e[i];
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if ($.isArray(ei))
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es = es.concat(flatten(ei));
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else
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es.push(ei);
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};
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return es;
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};
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// Remove escaped quotes from attributes etc
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var unquote = function (quotec, text) {
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return text.replace('\\' + quotec, quotec);
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};
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// Decode html entities. In a browser, this should only be fed the entity,
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// not untrusted html! XXX: replace with safer version.
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var unentity = function ( entity ) {
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return $("<div/>").html(entity).text();
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};
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// Debug print with global switch
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var dp = function ( msg ) {
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if ( false ) {
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console.log(msg);
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}
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};
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var pp = function ( s ) { return JSON.stringify(s, null, 2); }
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/*
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* Annotate a token stream with list items with appropriate list tokens
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*
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* @static
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* @method
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* @param {[tokens]} Token stream with li tokens
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* @returns {[tokens]} Token stream, possibly with additional list tokens
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* */
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var annotateList = function ( tokens ) {
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var out = [], // List of tokens
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bstack = [], // Bullet stack, previous element's listStyle
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bnext = [], // Next element's listStyle
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endtags = []; // Stack of end tags
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var commonPrefixLength = function (x, y) {
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var minLength = Math.min(x.length, y.length);
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for(var i = 0; i < minLength; i++) {
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if (x[i] != y[i])
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break;
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}
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return i;
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};
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var pushList = function ( listName, itemName ) {
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out.push({type: 'TAG', name: listName});
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out.push({type: 'TAG', name: itemName});
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endtags.push({type: 'ENDTAG', name: listName});
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endtags.push({type: 'ENDTAG', name: itemName});
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};
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var popTags = function ( n ) {
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for(;n > 0; n--) {
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// push list item..
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out.push(endtags.pop());
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// and the list end tag
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out.push(endtags.pop());
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}
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};
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var isDlDd = function (a, b) {
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var ab = [a,b].sort();
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return (ab[0] === ':' && ab[1] === ';');
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};
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var doListItem = function ( bs, bn ) {
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var prefixLen = commonPrefixLength (bs, bn);
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var changeLen = Math.max(bs.length, bn.length) - prefixLen;
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var prefix = bn.slice(0, prefixLen);
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// emit close tag tokens for closed lists
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if (changeLen === 0) {
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var itemToken = endtags.pop();
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out.push(itemToken);
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out.push({type: 'TAG', name: itemToken.name});
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endtags.push({type: 'ENDTAG', name: itemToken.name});
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} else if ( bs.length == bn.length
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&& changeLen == 1
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&& isDlDd( bs[prefixLen], bn[prefixLen] ) ) {
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// handle dd/dt transitions
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out.push(endtags.pop());
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if( bn[prefixLen] == ';') {
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var newName = 'dt';
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} else {
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var newName = 'dd';
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}
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out.push({type: 'TAG', name: newName});
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endtags.push({type: 'ENDTAG', name: newName});
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} else {
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popTags(bs.length - prefixLen);
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if (prefixLen > 0 && bn.length == prefixLen ) {
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var itemToken = endtags.pop();
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out.push(itemToken);
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out.push({type: 'TAG', name: itemToken.name});
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endtags.push({type: 'ENDTAG', name: itemToken.name});
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}
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for(var i = prefixLen; i < bn.length; i++) {
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switch (bn[i]) {
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case '*':
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pushList('ul', 'li');
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break;
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case '#':
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pushList('ol', 'li');
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break;
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case ';':
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pushList('dl', 'dt');
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break;
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case ':':
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pushList('dl', 'dd');
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break;
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default:
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throw("Unknown node prefix " + prefix[i]);
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}
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}
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}
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};
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for (var i = 0, length = tokens.length; i < length; i++) {
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var token = tokens[i];
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switch ( token.type ) {
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case 'TAG':
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switch (token.name) {
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case 'list':
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// ignore token
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break;
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case 'listItem':
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// convert listItem to list and list item tokens
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bnext = token.bullets;
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doListItem( bstack, bnext );
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bstack = bnext;
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break;
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default:
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// pass through all remaining start tags
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out.push(token);
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break;
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}
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break;
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case 'ENDTAG':
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if ( token.name == 'list' ) {
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// pop all open list item tokens
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popTags(bstack.length);
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bstack = [];
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} else {
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out.push(token);
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}
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break;
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default:
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out.push(token);
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break;
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}
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}
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return out;
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};
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/*
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* Italic/Bold handling.
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*
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* - list of tokens
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* - NEWLINE
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* - ticks (2+) -> list with link in line token list?
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* - process on newline
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* - need access to text nodes before/after for conversion back to text
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*/
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var doQuotes = function ( tokens ) {
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var italics = [],
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bolds = [],
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out = [],
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inserted = 0;
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var convertBold = function ( i ) {
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var index = bolds[i];
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var txt = out[index - 1];
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txt.value += "'";
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if ( i > 0 ) {
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bolds = bolds.slice(0, i)
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.concat(bolds.slice(i + 1, bolds.length - i - 1));
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} else {
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bolds.shift();
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}
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italics.push(index);
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italics.sort(function(a,b) { return a - b });
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};
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// convert italics/bolds into tags
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var quotesToTags = function ( offsets, name ) {
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var toggle = true;
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for (var j = 0; j < offsets.length; j++) {
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var t = out[offsets[j]];
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if(toggle) {
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t.type = 'TAG';
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} else {
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t.type = 'ENDTAG';
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}
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t.name = name;
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delete t.value;
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toggle = !toggle;
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}
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if (!toggle) {
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// add end tag
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out.push({type: 'ENDTAG', name: name});
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inserted++;
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}
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toggle = true;
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};
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for (var i = 0, length = tokens.length; i < length; i++) {
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var token = tokens[i];
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switch (token.type) {
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case 'QUOTE':
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// depending on length, add starting 's to preceding text node
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// (if any)
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// add token index to italic/bold lists
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// add placeholder for token
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var qlen = token.value.length;
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switch (qlen) {
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case 2: italics.push(i + inserted); out.push(token); break;
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case 3: bolds.push(i + inserted); out.push(token); break;
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case 4:
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token.value = "'''";
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if (i > 0 && tokens[i-1].type === 'TEXT') {
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tokens[i-1].value += "'";
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} else {
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out.push({type: 'TEXT', value: "'"});
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inserted++;
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}
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bolds.push(i + inserted);
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out.push(token);
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break;
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case 5:
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// order does not matter here, will be fixed
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// by HTML parser backend
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italics.push(i + inserted);
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out.push({type: 'QUOTE', value: "''"});
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inserted++;
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bolds.push(i + inserted);
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out.push({type: 'QUOTE', value: "'''"});
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break;
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default: // longer than 5, only use the last 5 ticks
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token.value = "'''''";
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var newvalue = token.value.substr(0, qlen - 5 );
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if (i > 0 && tokens[i-1].type === 'TEXT') {
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tokens[i-1].value += newvalue;
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} else {
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out.push({type: 'TEXT', value: newvalue});
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inserted++;
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}
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italics.push(i + inserted);
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out.push({type: 'QUOTE', value: "''"});
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inserted++;
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bolds.push(i + inserted);
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out.push({type: 'QUOTE', value: "'''"});
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break;
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}
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break;
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case 'NEWLINE':
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// balance out tokens, convert placeholders into tags
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if (italics.length % 2 && bolds.length % 2) {
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dp("balancing!");
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var firstsingleletterword = -1,
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firstmultiletterword = -1,
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firstspace = -1;
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for (var j = 0; j < bolds.length; j++) {
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var ticki = bolds[j];
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if (ticki > 0 && out[ticki - 1].type === 'TEXT') {
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var txt = out[ticki - 1],
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lastchar = txt.value[txt.value.length - 1],
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secondtolastchar = txt.value[txt.value.length - 2];
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dp('txt: ' + pp(txt));
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if (lastchar === ' ' && firstspace === -1) {
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firstspace = j;
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} else if (lastchar !== ' ') {
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if ( secondtolastchar === ' ' &&
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firstsingleletterword === -1)
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{
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firstsingleletterword = j;
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} else if ( firstmultiletterword == -1) {
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firstmultiletterword = j;
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}
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}
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}
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}
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// now see if we can convert a bold to an italic and
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// an apostrophe
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if (firstsingleletterword > -1) {
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convertBold(firstsingleletterword);
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} else if (firstmultiletterword > -1) {
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convertBold(firstmultiletterword);
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} else if (firstspace > -1) {
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convertBold(firstspace);
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}
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}
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quotesToTags(bolds, 'b');
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quotesToTags(italics, 'i');
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bolds = [];
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italics = [];
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out.push(token);
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break;
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default:
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out.push(token);
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}
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}
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return out;
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};
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/* End static utilities */
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/*
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* Flags for specific parse environments (inside tables, links etc). Flags
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* trigger syntactic stops in the inline_breaks production, which
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* terminates inline and attribute matches. Flags merely reduce the number
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* of productions needed: The grammar is still context-free as the
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* productions can just be unrolled for all combinations of environments
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* at the cost of a much larger grammar.
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*/
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var syntaxFlags = {};
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var setFlag = function(flag) {
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if (syntaxFlags[flag] !== undefined) {
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syntaxFlags[flag]++;
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} else {
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syntaxFlags[flag] = 1;
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}
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return true;
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};
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var clearFlag = function(flag) {
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syntaxFlags[flag]--;
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};
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// Start position of top-level block
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// Could also provide positions for lower-level blocks using a stack.
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var blockStart = 0;
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// Start position of generic tag production
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var tagStartPos = 0;
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// cache the input length
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var inputLength = input.length;
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// pseudo-production that matches at end of input
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var isEOF = function (pos) {
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return pos === inputLength;
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};
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// text start position
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var textStart = 0;
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// hack to support numbered external links ([http://example.com]).
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// XXX: Move to token stream transform after templates are expanded!
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var linkCount = 1;
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// Define block-level tags in JS, so we can use toLowerCase to match tags
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// case-independently. This would be quite ugly (and possibly slower) if
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// done manually in the grammar.
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var block_names = (function () {
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var names = [ "p", "table", "td", "tr", "ul", "ol"
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, "li", "dl", "dt", "dd", "div", "center"
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, "blockquote" ];
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var bnames = {};
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for(var i = 0, l = names.length; i < l; i++) {
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bnames[names[i]] = true;
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}
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return bnames;
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})();
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}
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start
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= e:toplevelblock* newline* {
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// XXX: move doQuotes out to general token stream transformer
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return doQuotes(flatten(e));
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}
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/* All chars that cannot start syntactic structures in the middle of a line
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* XXX: ] and other end delimiters should probably only be activated inside
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* structures to avoid unnecessarily leaving the text production on plain
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* content. */
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text_char = [^'<~[{\n\r:\]}|!=]
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text = t:text_char+ { return t.join(''); }
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/* Explanation of chars
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* ' quotes (italic/bold)
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* < start of xmlish_tag
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* ~ signatures/dates
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* [ start of links
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* { start of parser functions, transclusion and template args
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* \n all sort of block-level markup at start of line
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* \r ditto
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* h http(s) urls
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* n nntp(s) urls
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* m mailto urls
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*
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* ! and | table cell delimiters, might be better to specialize those
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* = headings - also specialize those!
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*
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* The following chars are also included for now, but only apply in some
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* contexts and should probably be enabled only in those:
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* : separate definition in ; term : definition
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* ] end of link
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* } end of parser func/transclusion/template arg
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*/
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urltext = ( t:[^'<~[{\n\rfghimnstw|!:\]} &=]+ { return t.join(''); }
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/ htmlentity
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/ urllink
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// Convert trailing space into
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// XXX: This should be moved to a serializer
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/ ' ' & ':' { return "\u00a0"; }
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/ t:text_char )+
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/*
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'//', // for protocol-relative URLs, but not in text!
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'ftp://',
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'git://',
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'gopher://',
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'http://',
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'https://',
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'irc://',
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'ircs://', // @bug 28503
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'mailto:',
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'mms://',
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'news:',
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'nntp://', // @bug 3808 RFC 1738
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'svn://',
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'telnet://', // Well if we're going to support the above.. -ævar
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'worldwind://',
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*/
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// Old version
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//text = t:[A-Za-z0-9,._ "?!\t-]+ { return t.join('') }
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// Experimental tweaked version: avoid expensive single-char substrings
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// This did not bring the expected performance boost, however.
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//text = [A-Za-z0-9,._ -] {
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// textStart = pos;
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//
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// var res = input.substr(textStart - 1, inputLength)
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// .match(/[A-Za-z0-9,._ -]+/)[0];
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// pos = pos + (res.length - 1);
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// return res
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// }
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htmlentity = "&" c:[#0-9a-zA-Z]+ ";" {
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return unentity("&" + c.join('') + ";")
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}
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space
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= s:[ \t]+ { return s.join(''); }
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optionalSpaceToken
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= s:space* {
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if ( s.length ) {
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return [{type: 'TEXT', value: s.join('')}];
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} else {
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return [];
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}
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}
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|
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// Start of line
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sol = (newline / & { return pos === 0; } { return true; })
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cn:(c:comment n:newline? { return [c, {type: 'TEXT', value: n}] })* {
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return [{type: 'NEWLINE'}].concat(cn);
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}
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eof = & { return isEOF(pos); } { return true; }
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newline
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= '\n' / '\r\n'
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newlineToken = newline { return [{type: 'NEWLINE'}] }
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eolf = newline / eof
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toplevelblock
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= & { blockStart = pos; return true; } b:block {
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b = flatten(b);
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var bs = b[0];
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//dp('toplevelblock:' + pp(b));
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if (bs.attribs === undefined) {
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bs.attribs = [];
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}
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bs.attribs.push(['data-sourcePos', blockStart + ':' + pos]);
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// XXX: only run this for lines that actually need it!
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//b.push({type: 'NEWLINE'});
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// Move this to a token stream transform!
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return b;
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}
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block
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= block_lines
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/ pre
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/ comment &eolf
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/ nowiki
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/ pre
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/ bt:block_tag { return [bt] } // avoid a paragraph if we know that the line starts with a block tag
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/ para
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/ inlineline // includes generic tags; wrapped into paragraphs in DOM postprocessor
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/ s:sol {
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if (s) {
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return [s, {type: 'NEWLINE'}];
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} else {
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return [{type: 'NEWLINE'}];
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}
|
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}
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block_lines
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= s:sol
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// eat an empty line before the block
|
|
s2:(ss:space* so:sol { return [{type: 'TEXT', value: ss.join('')}].concat(so) })?
|
|
bl:block_line {
|
|
var s2_ = (s2 !== '') ? s2 : [];
|
|
return s.concat(s2_, bl);
|
|
}
|
|
|
|
// Block structures with start-of-line wiki syntax
|
|
block_line
|
|
= h
|
|
/ table
|
|
/ lists
|
|
// tag-only lines should not trigger pre
|
|
/ st:optionalSpaceToken
|
|
bt:(bts:block_tag stl:optionalSpaceToken { return bts.concat(stl) })+
|
|
&eolf {
|
|
return st.concat(bt);
|
|
}
|
|
/ pre_indent
|
|
/ pre
|
|
|
|
|
|
|
|
|
|
// TODO: convert inline content to annotations!
|
|
para
|
|
= s1:sol s2:sol c:inlineline {
|
|
return s1.concat(s2, [{type: 'TAG', name: 'p'}], c);
|
|
}
|
|
|
|
br = space* &newline { return {type: 'SELFCLOSINGTAG', name: 'br'} }
|
|
|
|
// Syntax stops to limit inline expansion defending on syntactic context
|
|
inline_breaks
|
|
=
|
|
& { // Important hack: disable caching for this production, as the default
|
|
// cache key does not take into account flag states!
|
|
cacheKey = '';
|
|
return true;
|
|
}
|
|
& { return syntaxFlags['table']; }
|
|
a:(newline [!|] / '||' / '!!' / '|}') { dp("table break" + pp(a) + pos); return true; }
|
|
/ & { return (syntaxFlags['colon'] &&
|
|
! syntaxFlags.extlink && // example: ; [[Link:Term]] : Definition
|
|
! syntaxFlags.linkdesc); } ":" { return true; }
|
|
/ & { return syntaxFlags['extlink']; } "]" { return true; }
|
|
/ & { return syntaxFlags['linkdesc']; } link_end { return true; }
|
|
/ & { return syntaxFlags['h']; } '='+ space* newline { return true; }
|
|
/ & { return syntaxFlags['template']; } ('|' / '}}') { return true; }
|
|
|
|
inline
|
|
= c:(urltext / (! inline_breaks (inline_element / . )))+ {
|
|
var out = [];
|
|
var text = [];
|
|
c = flatten(c);
|
|
for (var i = 0, l = c.length; i < l; i++) {
|
|
var ci = c[i];
|
|
if (typeof ci == 'string') {
|
|
text.push(ci);
|
|
} else {
|
|
if (text.length) {
|
|
out.push({ type: "TEXT", value: text.join('') });
|
|
text = [];
|
|
}
|
|
out.push(ci);
|
|
}
|
|
}
|
|
if (text.length) {
|
|
out.push({ type: 'TEXT', value: text.join('') });
|
|
}
|
|
//dp('inline out:' + pp(out));
|
|
return out;
|
|
}
|
|
|
|
|
|
inlineline
|
|
= c:(urltext / !inline_breaks (inline_element / [^\n]))+ {
|
|
var out = [];
|
|
var text = [];
|
|
c = flatten(c);
|
|
for (var i = 0; i < c.length; i++) {
|
|
var ci = c[i]
|
|
if (typeof ci == 'string') {
|
|
text.push(ci);
|
|
} else {
|
|
if (text.length) {
|
|
out.push({type: 'TEXT', value: text.join('')});
|
|
text = [];
|
|
}
|
|
out.push(ci);
|
|
}
|
|
}
|
|
if (text.length) {
|
|
out.push({type: 'TEXT', value: text.join('')});
|
|
}
|
|
//dp('inlineline out:' + pp(out));
|
|
return out;
|
|
}
|
|
|
|
inline_element
|
|
= //& { dp('inline_element enter' + input.substr(pos, 10)); return true; }
|
|
& '<' ( comment / xmlish_tag )
|
|
/ & '{' ( template / tplarg )
|
|
/ & '[' ( wikilink / extlink )
|
|
/ & "'" quote
|
|
|
|
/* Headings */
|
|
|
|
h = & "=" // guard, to make sure '='+ will match.
|
|
// XXX: Also check to end to avoid inline parsing?
|
|
r:(
|
|
s:'='+ // moved in here to make s accessible to inner action
|
|
& { return setFlag('h'); }
|
|
c:inlineline
|
|
e:'='+
|
|
spc:(sp:space+ { return {type: 'TEXT', value: sp.join('') } } / comment)*
|
|
&eolf
|
|
{
|
|
clearFlag('h');
|
|
var level = Math.min(s.length, e.length);
|
|
// convert surplus equals into text
|
|
if(s.length > level) {
|
|
var extras = s.substr(0, s.length - level);
|
|
if(c[0].type == 'TEXT') {
|
|
c[0].value = extras + c[0].value;
|
|
} else {
|
|
c.unshift({type: 'TEXT', value: extras});
|
|
}
|
|
}
|
|
if(e.length > level) {
|
|
var extras = e.substr(0, e.length - level),
|
|
lastElem = c[c.length - 1];
|
|
if(lastElem.type == 'TEXT') {
|
|
lastElem.value = lastElem.value + extras;
|
|
} else {
|
|
c.push({type: 'TEXT', value: extras});
|
|
}
|
|
}
|
|
|
|
return [{type: 'TAG', name: 'h' + level}]
|
|
.concat(c, [{type: 'ENDTAG', name: 'h' + level}, spc]);
|
|
}
|
|
/ & { dp('nomatch exit h'); clearFlag('h'); return false } { return null }
|
|
) { return r }
|
|
|
|
|
|
pre_indent
|
|
= l:pre_indent_line ls:(sol pre_indent_line)* {
|
|
return [{type: 'TAG', name: 'pre'}]
|
|
.concat( [l], ls
|
|
, [{type: 'ENDTAG', name: 'pre'}]);
|
|
}
|
|
pre_indent_line = space l:inlineline {
|
|
return [{type: 'TEXT', value: '\n'}].concat(l);
|
|
}
|
|
|
|
|
|
comment
|
|
= '<!--' c:comment_chars* ('-->' / eof)
|
|
cs:(space* newline space* cn:comment { return cn })* {
|
|
return [{ type: 'COMMENT', value: c.join('') }].concat(cs);
|
|
}
|
|
|
|
comment_chars
|
|
= c:[^-] { return c; }
|
|
/ c:'-' !'->' { return c; }
|
|
|
|
|
|
urllink
|
|
= target:url {
|
|
return [ { type: 'TAG',
|
|
name: 'a',
|
|
attribs: [['href', target]] }
|
|
, {type: 'TEXT', value: target}
|
|
, {type: 'ENDTAG', name: 'a'}
|
|
];
|
|
}
|
|
|
|
extlink
|
|
= "["
|
|
& { return setFlag('extlink'); }
|
|
target:url
|
|
space*
|
|
text:inlineline?
|
|
"]" {
|
|
clearFlag('extlink');
|
|
if ( text == '' ) {
|
|
// XXX: Link numbering should be implemented in post-processor.
|
|
text = [{type: 'TEXT', value: "[" + linkCount + "]"}];
|
|
linkCount++;
|
|
}
|
|
return [ { type: 'TAG',
|
|
name: 'a',
|
|
attribs: [['href', target]] } ]
|
|
.concat( text
|
|
, [{type: 'ENDTAG', name: 'a'}]);
|
|
}
|
|
/ "[" & { clearFlag('extlink'); return false; }
|
|
|
|
/* Defaul URL protocols in MediaWiki (see DefaultSettings). Normally these can
|
|
* be configured dynamically. */
|
|
url_protocol
|
|
= '//' // for protocol-relative URLs
|
|
/ 'ftp://'
|
|
/ 'git://'
|
|
/ 'gopher://'
|
|
/ 'http://'
|
|
/ 'https://'
|
|
/ 'irc://'
|
|
/ 'ircs://' // @bug 28503
|
|
/ 'mailto:'
|
|
/ 'mms://'
|
|
/ 'news:'
|
|
/ 'nntp://' // @bug 3808 RFC 1738
|
|
/ 'svn://'
|
|
/ 'telnet://' // Well if we're going to support the above.. -ævar
|
|
/ 'worldwind://'
|
|
|
|
// javascript does not support unicode features..
|
|
unicode_separator_space = [ \u00A0\u1680\u180E\u2000-\u200A\u202F\u205F\u3000]
|
|
|
|
|
|
urlencoded_char = "%" c0:[0-9a-fA-F] c1:[0-9a-fA-F] {
|
|
return decodeURI("%" + c0 + c1)
|
|
}
|
|
|
|
//[^][<>"\\x00-\\x20\\x7F\p{Zs}]
|
|
url
|
|
= proto:url_protocol
|
|
rest:( [^ :\]\[\n"'<>\x00-\x20\x7f,.&%\u00A0\u1680\u180E\u2000-\u200A\u202F\u205F\u3000]
|
|
/ s:[.:,] !(space / eolf) { return s }
|
|
/ htmlentity
|
|
/ urlencoded_char
|
|
/ [&%] )+
|
|
{
|
|
return proto + rest.join('');
|
|
}
|
|
|
|
template
|
|
= "{{" target:template_target
|
|
params:(newline? "|" newline? p:template_param { return p })*
|
|
"}}" {
|
|
var obj = { type: 'TAG', name: 'template',
|
|
attribs: [['target', target]],
|
|
args: {}}
|
|
if (params && params.length) {
|
|
var position = 1;
|
|
for ( var i = 0, l = params.length; i < l; i++ ) {
|
|
var param = params[i];
|
|
if ( param[0] === null ) {
|
|
obj.args[position] = param[1];
|
|
position++;
|
|
} else {
|
|
obj.args[param[0]] = param[1];
|
|
}
|
|
}
|
|
// HACK: temporarily also push the args into an attribute
|
|
// (just for debugging)
|
|
obj.attribs.push(['data-args', JSON.stringify(obj.args)]);
|
|
}
|
|
// Should actually use a self-closing tag here, but the Node HTML5
|
|
// parser only recognizes known self-closing tags for now, so use an
|
|
// explicit end tag for now.
|
|
//console.log(pp(obj));
|
|
return obj;
|
|
}
|
|
|
|
template_target
|
|
= h:( !"}}" x:([^|\n]) { return x } )* { return h.join(''); }
|
|
|
|
template_param
|
|
= name:template_param_name space* "=" space* c:template_param_text {
|
|
return [name, c];
|
|
} / c:template_param_text {
|
|
return [null, c];
|
|
}
|
|
|
|
tplarg
|
|
= "{{{" name:link_target params:("|" p:template_param { return p })* "}}}" {
|
|
var obj = {
|
|
type: 'SELFCLOSINGTAG',
|
|
name: 'templatearg',
|
|
attribs: [['argname', name]]
|
|
};
|
|
if (params && params.length) {
|
|
// HACK, not final.
|
|
obj.attribs.push(['data-args', JSON.stringify(params)]);
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
template_param_name
|
|
= h:( !"}}" x:([^=|\n]) { return x } )* { return h.join(''); }
|
|
|
|
template_param_text
|
|
= & { return setFlag('template') }
|
|
il:inline+ {
|
|
clearFlag('template');
|
|
return il;
|
|
}
|
|
/ & { clearFlag('template'); return false; }
|
|
|
|
wikilink
|
|
= "[["
|
|
! url
|
|
target:link_target text:("|" lt:link_text { return lt })* "]]" suffix:text? {
|
|
var obj = {
|
|
type: 'TAG',
|
|
name: 'a',
|
|
attribs: [['data-type', 'internal']]
|
|
};
|
|
obj.attribs.push(['href', target]);
|
|
if (text && text.length) {
|
|
var textTokens = text;
|
|
} else {
|
|
if (suffix !== '') {
|
|
target += suffix;
|
|
}
|
|
var textTokens = [{type: 'TEXT', value: target}];
|
|
}
|
|
return [obj].concat(textTokens, [{type: 'ENDTAG', name: 'a'}]);
|
|
}
|
|
|
|
link_target
|
|
= h:( c:[^|%\n\]]+ { return c.join('') } // quickly eat anything unsuspicious
|
|
/ !"]]"
|
|
hi:(
|
|
[^|%\n]
|
|
/ urlencoded_char
|
|
/ '%'
|
|
) { return hi }
|
|
)* { return h.join(''); }
|
|
|
|
link_text
|
|
= h:( & { return setFlag('linkdesc'); }
|
|
x:inlineline { return x }
|
|
)* {
|
|
clearFlag('linkdesc')
|
|
return h;
|
|
}
|
|
/ & { clearFlag('linkdesc') } { return null; }
|
|
|
|
link_end = "]]"
|
|
|
|
/* Generic quote production for italic and bold, further processed in a token
|
|
* stream transformation in doQuotes. Relies on NEWLINE tokens being emitted
|
|
* for each line of text to balance quotes per line.
|
|
*
|
|
* We are not using a simple pair rule here as we need to support mis-nested
|
|
* bolds/italics and MediaWiki's special heuristics for apostrophes, which are
|
|
* all not context free. */
|
|
quote = "''" x:"'"* {
|
|
return {
|
|
type : 'QUOTE',
|
|
value: "''" + x.join('')
|
|
}
|
|
}
|
|
|
|
/* XXX: Extension tags can require a change in the tokenizer mode, which
|
|
* returns any text between extension tags verbatim. For now, we simply
|
|
* continue to parse the contained text and return the tokens. The original
|
|
* input source can be recovered from the source positions added on tag
|
|
* tokens. This won't however work in all cases. For example, a comment start
|
|
* (<!--) between extension tags would cause the remaining text to be consumed
|
|
* as a comment. To avoid this, we might need to look ahead for the end tag
|
|
* and limit the content parsing to this section. */
|
|
|
|
xmlish_tag = nowiki / generic_tag
|
|
|
|
pre
|
|
= "<pre"
|
|
attribs:generic_attribute*
|
|
">"
|
|
ts:(t1:[^<]+ { return {type:'TEXT',value:t1.join('')} }
|
|
/ nowiki
|
|
/ !"</pre>" t2:. {return {type:'TEXT',value:t2}})+
|
|
("</pre>" / eof) {
|
|
// return nowiki tags as well?
|
|
//console.log('inpre');
|
|
return [ {type: 'TAG', name: 'pre', attribs: attribs} ]
|
|
.concat(ts, [{type: 'ENDTAG', name: 'pre'}]);
|
|
}
|
|
/ "</pre>" { return {type: 'TEXT', value: "</pre>"}; }
|
|
|
|
nowiki
|
|
= "<nowiki>" nc:nowiki_content "</nowiki>" {
|
|
// console.log(pp(nc));
|
|
return nc;
|
|
}
|
|
/ "<nowiki>" {
|
|
//console.log('nowiki fallback');
|
|
return [{type: 'TEXT', value: '<nowiki>'}];
|
|
}
|
|
/ "</nowiki>" { return [{type: 'TEXT', value: '</nowiki>'}]; }
|
|
|
|
nowiki_content
|
|
= ts:( t:[^<]+ { return t.join('') }
|
|
/ "<pre" p0:space* p1:[^>]* ">" p2:nowiki_content "</pre>" {
|
|
//console.log('nested pre in nowiki');
|
|
return ["<pre"].concat(p0, p1, [">"], [p2[0].value], ["</pre>"]).join('');
|
|
}
|
|
/ (!("</nowiki>" / "</pre>") c:. {return c})
|
|
)* {
|
|
// return nowiki tags as well?
|
|
return [{type: 'TEXT', value: ts.join('')}];
|
|
}
|
|
|
|
// See http://dev.w3.org/html5/spec/Overview.html#syntax-tag-name and
|
|
// following paragraphs
|
|
block_tag
|
|
= "<" end:"/"? name:(cs:[a-zA-Z]+ { return cs.join('') })
|
|
attribs:generic_attribute*
|
|
selfclose:"/"?
|
|
">" {
|
|
if (block_names[name.toLowerCase()] !== true) {
|
|
// abort match if tag is not block-level
|
|
return null;
|
|
}
|
|
var res = {name: name, attribs: attribs};
|
|
if ( end != '' ) {
|
|
res.type = 'ENDTAG';
|
|
} else if ( selfclose != '' ) {
|
|
res.type = 'SELFCLOSINGTAG';
|
|
} else {
|
|
res.type = 'TAG';
|
|
}
|
|
return [res];
|
|
}
|
|
|
|
/* Generic XML-like tags
|
|
*
|
|
* These also cover extensions (including Cite), which will hook into the
|
|
* token stream for further processing. The content of extension tags is
|
|
* parsed as regular inline, but the source positions of the tag are added
|
|
* to allow reconstructing the unparsed text from the input. */
|
|
|
|
// See http://dev.w3.org/html5/spec/Overview.html#syntax-tag-name and
|
|
// following paragraphs
|
|
generic_tag
|
|
= "<"
|
|
& { tagStartPos = pos; return true; } // remember the start position of this tag
|
|
end:"/"? name:[0-9a-zA-Z]+
|
|
attribs:generic_attribute*
|
|
space*
|
|
selfclose:"/"?
|
|
">" {
|
|
var res = {name: name.join(''), attribs: attribs};
|
|
if ( end != '' ) {
|
|
res.type = 'ENDTAG';
|
|
} else if ( selfclose != '' ) {
|
|
res.type = 'SELFCLOSINGTAG';
|
|
} else {
|
|
res.type = 'TAG';
|
|
}
|
|
res.attribs.push(['data-sourceTagPos', (tagStartPos - 1) + ":" + pos]);
|
|
return res;
|
|
}
|
|
|
|
generic_attribute
|
|
= s:space*
|
|
name:generic_attribute_name
|
|
value:(space*
|
|
v:generic_attribute_value { return v })?
|
|
{
|
|
if ( value !== '' ) {
|
|
return [name, value];
|
|
} else {
|
|
return [name,''];
|
|
}
|
|
}
|
|
|
|
// http://dev.w3.org/html5/spec/Overview.html#attributes-0, and we also
|
|
// disallow newlines and |.
|
|
generic_attribute_name
|
|
= n:[^ \t\0/"'>=\n|]+ {
|
|
return n.join('');
|
|
}
|
|
|
|
generic_attribute_value
|
|
= "=" space* v:att_value {return v}
|
|
|
|
att_value
|
|
= t:[^ \t'"<>='\n]+ { return t.join(''); }
|
|
// XXX: is "\"" also valid html? or just Wikitext?
|
|
/ "'" t:[^'>]* "'" { return unquote("'", t.join('')); }
|
|
/ '"' t:[^">]* '"' { return unquote('"', t.join('')); }
|
|
|
|
|
|
/* Lists */
|
|
lists = e:(dtdd / li) es:(sol (dtdd / li))*
|
|
{
|
|
return annotateList( [ { type: 'TAG', name: 'list'} ]
|
|
.concat(flatten([e].concat(es))
|
|
,[{ type: 'ENDTAG', name: 'list' }]));
|
|
}
|
|
|
|
li = bullets:list_char+
|
|
c:inlineline?
|
|
&eolf
|
|
{
|
|
if ( c == '' )
|
|
c = [];
|
|
return [ { type: 'TAG',
|
|
name: 'listItem',
|
|
bullets: bullets }
|
|
, c ];
|
|
}
|
|
|
|
dtdd
|
|
= bullets:(!(";" !list_char) list_char)*
|
|
";"
|
|
& {return setFlag('colon');}
|
|
c:inlineline
|
|
":"
|
|
// Fortunately dtdds cannot be nested, so we can simply set the flag
|
|
// back to 0 to disable it.
|
|
& {syntaxFlags['colon'] = 0; return true;}
|
|
d:inlineline
|
|
&eolf {
|
|
// Convert trailing space into
|
|
// XXX: This should be moved to a serializer
|
|
//var clen = c.length;
|
|
//if (clen && c[clen - 1].type === 'TEXT') {
|
|
// var val = c[clen - 1].value;
|
|
// if(val.length && val[val.length - 1] == ' ') {
|
|
// c[clen - 1].value = val.substr(0, val.length - 1) + "\u00a0";
|
|
// }
|
|
//}
|
|
|
|
return [ { type: 'TAG', name: 'listItem', bullets: bullets + ";" } ]
|
|
.concat( c
|
|
,[{ type: 'TAG', name: 'listItem', bullets: bullets + ":" } ]
|
|
, d );
|
|
}
|
|
// Fall-back case to clear the colon flag
|
|
/ & { return true; } { syntaxFlags['colon'] = 0; return null; }
|
|
|
|
|
|
list_char = [*#:;]
|
|
|
|
|
|
/* Tables */
|
|
table
|
|
= tas:table_start space* c:table_caption? b:table_body? te:table_end {
|
|
var res = {type: 'TAG', name: 'table'}
|
|
var body = b !== '' ? b : [];
|
|
dp("body: " + pp(body));
|
|
if (tas.length > 0) {
|
|
// FIXME: actually parse and build structure
|
|
//res.attribs = [['data-unparsed', tas.join('')]];
|
|
res.attribs = tas;
|
|
}
|
|
|
|
if (c != '') {
|
|
var caption = [{type: 'TAG', name: 'caption'}]
|
|
.concat(c, [{type: 'ENDTAG', name: 'caption'}], te);
|
|
} else {
|
|
var caption = [];
|
|
}
|
|
//dp(pp(res));
|
|
|
|
return [res].concat(caption, body,
|
|
[{type: 'ENDTAG', name: 'table'}]);
|
|
}
|
|
|
|
table_start
|
|
= "{|"
|
|
res:(
|
|
& { setFlag('table'); return true; }
|
|
ta:generic_attribute*
|
|
{
|
|
dp("table_start " + pp(ta) + ", pos:" + pos);
|
|
return ta;
|
|
}
|
|
/ & { clearFlag('table'); return false; } { return null; }
|
|
) { return res }
|
|
|
|
table_attribs
|
|
= text / ! inline_breaks !newline ![|] c:. { return c }
|
|
|
|
table_caption
|
|
= n:newlineToken
|
|
"|+" c:inline* {
|
|
return n.concat(c);
|
|
}
|
|
|
|
table_body
|
|
= //& { dp("table_body enter"); return true; }
|
|
firstrow:table_firstrow otherrows:table_row* {
|
|
/* dp('table first and otherrows: '
|
|
* + pp([firstrow].concat(otherrows))); */
|
|
return [firstrow].concat(otherrows);
|
|
}
|
|
/ otherrows:table_row* {
|
|
//dp('table otherrows: ' + pp(otherrows));
|
|
return otherrows;
|
|
}
|
|
|
|
table_firstrow
|
|
= td:table_data+ {
|
|
//dp('firstrow: ' + pp(td));
|
|
return [{ type: 'TAG', name: 'tr' }]
|
|
.concat(td, [{type: 'ENDTAG', name: 'tr'}]);
|
|
}
|
|
|
|
table_row
|
|
= //& { dp("table row enter"); return true; }
|
|
n:newlineToken
|
|
"|-" thtd_attribs? space* td:(table_data / table_header)* {
|
|
return n.concat([{type: 'TAG', name: 'tr'}]
|
|
, td, [{type: 'ENDTAG', name: 'tr'}]);
|
|
}
|
|
|
|
table_data
|
|
= //& { dp("table_data enter, pos=" + pos + input.substr(pos,10)); return true; }
|
|
n:("||" { return [] } / nt:newlineToken "|" { return nt })
|
|
! [}+-]
|
|
//& { dp('before attrib, pos=' + pos); return true; }
|
|
a:(as:generic_attribute+ space* "|" !"|" { return as } )?
|
|
//& { dp('past attrib, pos=' + pos); return true; }
|
|
// use inline_breaks to break on tr etc
|
|
td:(!inline_breaks
|
|
//& { dp("table_data 2, pos=" + pos + input.substr(pos,10)); return true; }
|
|
b:block { return b })* {
|
|
if ( a == '' ) {
|
|
a = [];
|
|
}
|
|
//dp("table data result: " + pp(td) + ", attribts: " + pp(a));
|
|
return n.concat( [{ type: 'TAG', name: 'td', attribs: a}]
|
|
, td, [{type: 'ENDTAG', name: 'td'}] );
|
|
}
|
|
|
|
table_header
|
|
= n:("!!" { return [] } / nl:newlineToken "!" { return nl })
|
|
a:(as:generic_attribute+ "!" !"!" { return as } )?
|
|
c:inline {
|
|
if ( a == '' ) {
|
|
a = [];
|
|
}
|
|
return n.concat( [{type: 'TAG', name: 'th', attribs: a}]
|
|
, c, [{type: 'ENDTAG', name: 'th'}]);
|
|
}
|
|
|
|
thtd_attribs
|
|
// In particular, do not match [|\n]
|
|
= a:(text / ! inline_breaks c:[="':;/,. -] { return c } )+ "|" ! "|" {
|
|
return a;
|
|
}
|
|
|
|
|
|
table_end
|
|
= nt:newlineToken? ( "|}" / eof ) {
|
|
clearFlag('table');
|
|
if(nt)
|
|
return nt;
|
|
else
|
|
return [];
|
|
}
|
|
|
|
|
|
/* Tabs do not mix well with the hybrid production syntax */
|
|
/* vim: set filetype=javascript expandtab ts=4 sw=4 cindent : */
|