mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-15 18:39:52 +00:00
775 lines
17 KiB
Plaintext
775 lines
17 KiB
Plaintext
/* Produces output more or less compatible with FakeParser; plug it into FP's output and see */
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{
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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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// Forbidden chars in anything content
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var forbiddenThingRegexp = {
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// key: regexp
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// value: nesting counter, regexp removed if zero reached
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kvs: {},
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regexp: "",
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rebuild: function () {
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var keys = [];
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for (var key in this.kvs) {
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keys.push(key);
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}
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this.regexp = keys.join('|');
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},
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push: function (key) {
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if (this.kvs[key] !== undefined) {
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this.kvs[key]++;
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} else {
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this.kvs[key] = 1;
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this.rebuild();
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}
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},
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pop: function (key) {
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if (this.kvs[key] !== undefined) {
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if(this.kvs[key] == 1) {
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delete this.kvs[key];
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this.rebuild();
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} else {
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this.kvs[key]--;
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}
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} else {
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throw "Trying to pop non-existing forbiddenThingRegexp";
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}
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}
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}
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/* Temporary debugging help. Is there anything similar in JS or a library? */
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var print_r = function (arr, level) {
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var dumped_text = "";
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if (!level) level = 0;
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//The padding given at the beginning of the line.
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var level_padding = "";
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var bracket_level_padding = "";
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for (var j = 0; j < level + 1; j++) level_padding += " ";
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for (var b = 0; b < level; b++) bracket_level_padding += " ";
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if (typeof(arr) == 'object') { //Array/Hashes/Objects
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dumped_text += "Array\n";
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dumped_text += bracket_level_padding + "(\n";
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for (var item in arr) {
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var value = arr[item];
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if (typeof(value) == 'object') { //If it is an array,
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dumped_text += level_padding + "[" + item + "] => ";
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dumped_text += print_r(value, level + 2);
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} else {
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dumped_text += level_padding + "[" + item + "] => '" + value + "'\n";
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}
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}
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dumped_text += bracket_level_padding + ")\n\n";
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} else { //Stings/Chars/Numbers etc.
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dumped_text = "===>" + arr + "<===(" + typeof(arr) + ")";
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}
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return dumped_text;
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}
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}
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start
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= e:block* {
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var es = [];
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// flatten sub-arrays, as a list block can contain multiple lists
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$.each(e, function(i, ei) {
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if (ei.constructor == Array)
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es = es.concat(ei);
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else
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es.push(ei);
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});
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dp(print_r(es));
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return {
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type: 'page',
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content: es
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}
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}
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anyblock = block / inline
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anyblockline = block / inlineline
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anything
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= text
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/ s:.+ {
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// reject match if forbiddenThingRegexp matches
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var str = s.join('');
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dp("anything: " +print_r(str));
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if (forbiddenThingRegexp.regexp !== '') {
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var m = str.search(forbiddenThingRegexp.regexp)
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if ( m > 0 ) {
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dp("anything reverse " + (str.length - m)
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+ ", matched: " + str.substr(0,m));
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// reverse parser position
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pos -= str.length - m;
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return {text: str.substr(0,m)};
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} else {
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if (m == 0) {
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pos -= str.length;
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return null;
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} else {
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return {text: str};
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}
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}
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} else {
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return {text: str};
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}
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}
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anyline
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= text
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/ s:[^\n]+ {
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// reject match if forbiddenThingRegexp matches
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var str = s.join('');
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dp("anyline: " + print_r(str) + ", pos:" + pos);
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if (forbiddenThingRegexp.regexp !== '') {
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var m = str.search(forbiddenThingRegexp.regexp)
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if ( m > 0 ) {
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// reverse parser position
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pos -= str.length - m;
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dp("anyline reverse " + (str.length - m)
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+ ", matched: " + str.substr(0,m));
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return {text: str.substr(0,m)};
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} else {
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if (m == 0) {
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pos -= str.length;
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return null;
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} else {
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return {text : str};
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}
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}
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} else {
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return {text: str};
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}
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}
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// All chars that cannot start syntactic structures
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text = t:[A-Za-z0-9,._ -]+ { return t.join('') }
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space
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= s:[ ]+ { return s.join(''); }
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newline
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= [\n]
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block
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= br
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/ h
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/ table
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/ lists
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/ para
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h = h1 / h2 / h3 / h4 / h5 / h6
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h1 = '=' c:heading_text '=' newline {
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return {
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type: 'heading',
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level: 1,
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text: c
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}
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}
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h2 = '==' c:heading_text '==' newline {
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return {
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type: 'heading',
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level: 2,
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text: c
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}
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}
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h3 = '===' c:heading_text '===' newline {
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return {
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type: 'heading',
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level: 3,
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text: c
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}
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}
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h4 = '====' c:heading_text '====' newline {
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return {
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type: 'heading',
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level: 4,
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text: c
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}
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}
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h5 = '=====' c:heading_text '=====' newline {
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return {
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type: 'heading',
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level: 5,
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text: c
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}
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}
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h6 = '======' c:heading_text '======' newline {
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return {
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type: 'heading',
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level: 6,
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text: c
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}
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}
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heading_marker
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= '=' '='*
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heading_text
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= h:( !heading_marker x:(anyline) { return x } )* { return h.join(''); }
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br
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= newline { return {type: 'br'} }
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para
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= c:inlineline newline { return {type: 'paragraph', content: c } } /
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c:anyline
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inline
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= c:(inline_element / anything)+ {
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var out = [];
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var text = '';
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for (var i = 0; i < c.length; i++) {
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if (typeof c[i] == 'string') {
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text += c[i];
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} else {
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if (text.length) {
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out.push({
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type: 'text',
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text: text
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});
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text = '';
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}
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out.push(c[i]);
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}
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}
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if (text.length) {
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out.push({
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type: 'text',
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text: text
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});
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}
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return out;
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}
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inlineline
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= c:(inline_element / anyline)+ {
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var out = [];
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var text = '';
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for (var i = 0; i < c.length; i++) {
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if (typeof c[i] == 'string') {
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text += c[i];
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} else {
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if (text.length) {
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out.push({
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type: 'text',
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text: text
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});
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text = '';
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}
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out.push(c[i]);
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}
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}
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if (text.length) {
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out.push({
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text: text,
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//annotations: []
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});
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}
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return out;
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}
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inline_element
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= comment
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/ xmlish_tag
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/ extlink
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/ template
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/ link
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/ bold
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/ italic
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comment
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= '<!--' c:comment_chars+ '-->' {
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return {
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type: 'comment',
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text: c.join('')
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}
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}
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comment_chars
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= c:[^-] { return c; }
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/ c:'-' !'-' { return c; }
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inline_text_run
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= c:[^\n]+ { return c.join(''); }
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extlink
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= "[" target:url " " text:extlink_text "]" {
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return {
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type: 'extlink',
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target: target,
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text: text
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}
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}
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// = "[" target:url text:extlink_text "]" { return { type: 'extlink', target: target, text: text } }
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url
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= proto:"http:" rest:([^ \]]+) { return proto + rest.join(''); }
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extlink_text
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= c:[^\]]+ { return c.join(''); }
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template
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= "{{" target:link_target params:("|" p:template_param { return p })* "}}" {
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var obj = {
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type: 'template',
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target: target
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};
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if (params && params.length) {
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obj.params = params;
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}
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return obj;
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}
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template_param
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= name:template_param_name "=" c:template_param_text {
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return {
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name: name,
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content: c
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};
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} / c:template_param_text {
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return {
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content: c
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};
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}
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tplarg = "{{{" name:link_target params:("|" p:template_param { return p })* "}}}" {
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var obj = {
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type: 'tplarg',
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name: name
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};
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if (params && params.length) {
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obj.params = params;
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}
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return obj;
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}
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template_param_name
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= h:( !"}}" x:([^=|]) { return x } )* { return h.join(''); }
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template_param_text
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= template_param_text_chunk*
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/* = h:( !"}}" x:([^|]) { return x } )* { return h.join(''); }*/
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template_param_text_chunk
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= comment
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/ xmlish_tag
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/ extlink
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/ template
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/ link
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/ bold
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/ italic
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/ !"}}" x:([^|]) { return x }
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link
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= "[[" target:link_target text:("|" link_text)* "]]" {
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var obj = {
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type: 'link',
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target: target
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};
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if (text && text.length) {
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obj.text = text[0][1]; // ehhhh
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}
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return obj;
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}
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link_target
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= h:( !"]]" x:([^|]) { return x } )* { return h.join(''); }
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link_text
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= h:( !"]]" x:(anyline) { return x } )* { return h.join(''); }
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bold
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= bold_marker c:bold_text bold_marker {
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return {
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type: 'b',
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text: c,
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}
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}
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bold_marker
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= "'''"
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bold_text
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= h:( !bold_marker x:(anyline) { return x } )+ { return h.join(''); }
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italic
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= italic_marker c:italic_text italic_marker {
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return {
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type: 'i',
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text: c
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}
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}
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italic_marker
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= "''"
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italic_text
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= h:( !italic_marker x:(anyline) { return x } )+ { return h.join(''); }
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/* Will need to check anything xmlish agains known/allowed HTML tags and
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* registered extensions, otherwise fail the match. Should ref be treated as a
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* regular extension? */
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xmlish_tag =
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ref /
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references
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ref = ref_full / ref_empty
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/* Can we do backreferences to genericize this? */
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ref_full
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= start:ref_start ">" content:ref_content* close:ref_end {
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return {
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type: 'ext',
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name: 'ref',
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params: start.params,
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ws: start.ws,
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content: content,
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close: close
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}
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}
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ref_empty
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= start:ref_start close:(space* "/>") {
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return {
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type: 'ext',
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name: 'ref',
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ws: start.ws,
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params: start.params,
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close: close
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}
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}
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ref_start
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= "<ref" params:ext_param* ws:space* {
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return {
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params: params,
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ws: ws
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};
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}
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ref_end
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= all:("</ref" space* ">") {
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return all.join('');
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}
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ref_content
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= !ref_end a:(inline_element / anyline) {
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return a;
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}
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/* fixme probably have to programatically add these */
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references = references_full / references_empty
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references_full
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= start:references_start ">" content:references_content* close:references_end {
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return {
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type: 'ext',
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name: 'references',
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params: start.params,
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ws: start.ws,
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content: content,
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close: close
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}
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}
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references_empty
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= start:references_start close:(space* "/>") {
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return {
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type: 'ext',
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name: 'references',
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ws: start.ws,
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params: start.params,
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close: close
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}
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}
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references_start
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= "<references" params:ext_param* ws:space* {
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return {
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params: params,
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ws: ws
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};
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}
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references_end
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= all:("</references" space* ">") {
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return all.join('');
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}
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references_content
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= !references_end a:(inline_element / anyline) {
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return a;
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}
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ext_param
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= space* name:ext_param_name "=" val:ext_param_val {
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val.name = name;
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return val;
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}
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ext_param_name
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= name:[a-zA-Z0-9-]+ {
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return name.join('');
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}
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ext_param_val
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= t:[0-9A-Za-z]+ { return {text: t.join('') } }
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/ "'" t:[^'>]+ "'" { return { quote: "'", text: t.join('') } }
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/ '"' t:[^">]+ '"' { return { quote: '"', text: t.join('') } }
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lists = es:(dtdd / li)+
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{
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var out = [], // List of list nodes
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bstack = "", // Bullet stack, previous element's listStyle
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bnext = "", // Next element's listStyle
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nodes = []; // Stack of currently active, nested list nodes
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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 pushN = function ( n ) {
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if (nodes.length > 0) {
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nodes[nodes.length - 1].content.push(n);
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} else {
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out.push(n);
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nodes.push(n);
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}
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}
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var openLists = function ( bs, bn ) {
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var prefix = commonPrefixLength (bs, bn);
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nodes = nodes.slice(0, prefix);
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$.each(bn.slice(prefix, bn.length), function (i, c) {
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switch (c) {
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case '*':
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pushN({type: 'ul', content: []});
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break;
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case '#':
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pushN({type: 'ol', content: []});
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break;
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case ';':
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case ':':
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pushN({type: 'dl', content: []});
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break;
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default:
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throw("Unknown node prefix " + c);
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}
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});
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}
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$.each(es, function(i, e) {
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if (e.type == 'dtdd') {
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bnext = e.content[0].listStyle;
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lnode = openLists( bstack, bnext );
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nodes[nodes.length - 1].content =
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nodes[nodes.length - 1].content.concat(e.content);
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} else {
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bnext = e.listStyle;
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openLists( bstack, bnext, nodes );
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nodes[nodes.length - 1].content.push(e);
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}
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bstack = bnext;
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});
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//dp("out: " + print_r(out, 5));
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return out;
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}
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li = bullets:list_char+
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c:(inlineline / anyline)
|
|
newline
|
|
{
|
|
var type;
|
|
switch (bullets[bullets.length - 1]) {
|
|
case '#':
|
|
case '*':
|
|
type = 'li'; break;
|
|
case ';': type = 'dt'; break;
|
|
case ':': type = 'dd'; break;
|
|
}
|
|
return {
|
|
type: type,
|
|
listStyle: bullets,
|
|
content: c
|
|
};
|
|
}
|
|
|
|
dtdd = bullets:list_char+
|
|
c:(inline_element / [^:\n])+
|
|
":"
|
|
d:(inline / anyline)
|
|
newline
|
|
{
|
|
// reject rule if bullets do not end in semicolon
|
|
if (bullets[bullets.length - 1] != ';') {
|
|
return null;
|
|
} else {
|
|
return {
|
|
type: 'dtdd',
|
|
content: [
|
|
{
|
|
type: 'dt',
|
|
listStyle: bullets,
|
|
content: c
|
|
}, {
|
|
type: 'dd',
|
|
listStyle: bullets.slice(0, bullets.length - 1) + ':',
|
|
content: d
|
|
}
|
|
|
|
]
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
list_char = [*#:;]
|
|
|
|
|
|
/* Tables */
|
|
|
|
table
|
|
= tas:table_start c:table_caption? b:table_body? table_end {
|
|
var res = {type: 'table'}
|
|
var body = b !== '' ? b : [];
|
|
if (c !== '') {
|
|
res.content = [c].concat(body);
|
|
} else {
|
|
res.content = body;
|
|
}
|
|
if (tas.length > 0) {
|
|
// FIXME: actually parse and build structure
|
|
res.attributes = { unparsed: tas }
|
|
}
|
|
dp(print_r(res));
|
|
return res;
|
|
}
|
|
|
|
table_start
|
|
= "{|"
|
|
& { forbiddenThingRegexp.push('(\n|^)\\||\\|[|\x7d+]'); return true; }
|
|
ta:table_attribs* space* newline? {
|
|
dp("table_start " + print_r(ta) + ", pos:" + pos);
|
|
return ta;
|
|
}
|
|
/ "{|" { forbiddenThingRegexp.pop('(\n|^)\\||\\|[|\x7d+]'); return null; }
|
|
|
|
table_attribs = anyline
|
|
|
|
table_caption
|
|
= "|+" c:inline* newline? {
|
|
return {
|
|
type: 'tableCaption',
|
|
content: c
|
|
}
|
|
}
|
|
|
|
table_body
|
|
= & { dp("table_body enter"); return true; }
|
|
firstrow:table_firstrow otherrows:table_row* {
|
|
/* dp('table first and otherrows: '
|
|
* + print_r([firstrow].concat(otherrows))); */
|
|
return [firstrow].concat(otherrows);
|
|
}
|
|
/ otherrows:table_row* {
|
|
//dp('table otherrows: ' + print_r(otherrows));
|
|
return otherrows;
|
|
}
|
|
|
|
table_firstrow
|
|
= td:table_data+ {
|
|
return {
|
|
type: 'tableRow',
|
|
content: td
|
|
};
|
|
}
|
|
|
|
table_row
|
|
= "|-" space* newline? td:(table_data / table_header)* {
|
|
return {
|
|
type: 'tableRow',
|
|
content: td
|
|
};
|
|
}
|
|
|
|
table_data
|
|
= & { dp("table_data enter, pos=" + pos); return true; }
|
|
"||" td_attr? td:anyblock* newline? {
|
|
//dp("table || result:" + print_r(td));
|
|
return {
|
|
type: 'tableCell',
|
|
content: td
|
|
};
|
|
}
|
|
/ & { dp("table_data : | enter pos=" + pos); return true; }
|
|
"|" ![}+-] td_attr? td:anyblock* newline? {
|
|
//dp("table | result:" + print_r(td));
|
|
return {
|
|
type: 'tableCell',
|
|
content: td
|
|
};
|
|
}
|
|
|
|
td_attr = a:[^\n|]+ "|" !"|" {
|
|
dp("td_attr: " + a.join(''));
|
|
return a.join('');
|
|
}
|
|
|
|
table_header
|
|
= "!!" c:(inline / ("!" !"!") / [^!\n])* newline? {
|
|
return {
|
|
type: 'tableHeader',
|
|
content: c
|
|
}
|
|
}
|
|
/ "!" c:(inline / text / '!' !'!' / [^!\n])* newline? {
|
|
return {
|
|
type: 'tableHeader',
|
|
content: c
|
|
}
|
|
}
|
|
|
|
table_end = "|}" newline? { forbiddenThingRegexp.pop('(\n|^)\\||\\|[|\x7d+]'); }
|
|
|
|
|
|
/* Wikidom TODO:
|
|
* split off text into content nodes
|
|
* convert inlines into annotations
|
|
* change contents into children
|
|
*/
|