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Clean up and comment the Cite extension a bit.

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This commit is contained in:
Gabriel Wicke 2011-12-13 18:45:09 +00:00
parent 7e3401b777
commit c61b32eaa7
1 changed files with 93 additions and 48 deletions
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141
modules/parser/ext.Cite.js
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@ -1,16 +1,20 @@
/**
* The ref / references tags don't do any fancy HTML, so we can actually
* implement this in terms of parse tree manipulations, skipping the need
* for renderer-specific plugins as well.
* Simple token transform version of the Cite extension.
*
* Pretty neat huh!
* @class
* @constructor
*/
function Cite () {
this.refGroups = {};
this.refTokens = [];
}
/**
* Register with dispatcher.
*
* @method
* @param {Object} TokenTransformDispatcher to register to
*/
Cite.prototype.register = function ( dispatcher ) {
// Register for ref and references tag tokens
var self = this;
@ -27,9 +31,17 @@ Cite.prototype.register = function ( dispatcher ) {
};
// Convert list of key-value pairs to object, with first entry for a key
// winning.
// XXX: Move to general util module
/**
* Convert list of key-value pairs to object, with first entry for a
* key.
*
* XXX: Move to general utils
*
* @static
* @method
* @param {Array} List of [key, value] pairs
* @returns {Object} Object with key/values set, first entry wins.
*/
Cite.prototype.attribsToObject = function ( attribs ) {
if ( attribs === undefined ) {
return {};
@ -44,7 +56,13 @@ Cite.prototype.attribsToObject = function ( attribs ) {
return obj;
};
/**
* Handle ref tag tokens.
*
* @method
* @param {Object} TokenContext
* @returns {Object} TokenContext
*/
Cite.prototype.onRef = function ( tokenCTX ) {
var refGroups = this.refGroups;
@ -131,19 +149,21 @@ Cite.prototype.onRef = function ( tokenCTX ) {
{
type: 'TAG',
name: 'span',
attribs: [['id', linkback],
['class', 'reference'],
// ignore element when serializing back to wikitext
['data-nosource', '']]
attribs: [
['id', linkback],
['class', 'reference'],
// ignore element when serializing back to wikitext
['data-nosource', '']
]
},
{
type: 'TAG',
name: 'a',
attribs:
[['data-type', 'hashlink'],
attribs: [
['data-type', 'hashlink'],
['href', '#' + ref.target]
// XXX: Add round-trip info here?
]
]
},
{
type: 'TEXT',
@ -161,6 +181,13 @@ Cite.prototype.onRef = function ( tokenCTX ) {
return tokenCTX;
};
/**
* Handle references tag tokens.
*
* @method
* @param {Object} TokenContext
* @returns {Object} TokenContext
*/
Cite.prototype.onReferences = function ( tokenCTX ) {
var refGroups = this.refGroups;
@ -174,36 +201,41 @@ Cite.prototype.onReferences = function ( tokenCTX ) {
attribs: [['id', ref.target]]
}];
if (ref.linkbacks.length == 1) {
out = out.concat([{
type: 'TAG',
name: 'a',
attribs:
[['data-type', 'hashlink'],
['href', '#' + ref.linkbacks[0]]
]
},
{type: 'TEXT', value: arrow},
{type: 'ENDTAG', name: 'a'}
],
ref.tokens // The original content tokens
out = out.concat([
{
type: 'TAG',
name: 'a',
attribs: [
['data-type', 'hashlink'],
['href', '#' + ref.linkbacks[0]]
]
},
{type: 'TEXT', value: arrow},
{type: 'ENDTAG', name: 'a'}
],
ref.tokens // The original content tokens
);
} else {
out.content.push({type: 'TEXT', value: arrow});
$.each(ref.linkbacks, function(i, linkback) {
out = out.concat([{
type: 'TAG',
name: 'a',
attribs:
[['data-type', 'hashlink'],
['href', '#' + ref.linkbacks[0]]
]
},
// XXX: make formatNum available!
//{type: 'TEXT', value: env.formatNum( ref.groupIndex + '.' + i)},
{type: 'TEXT', value: ref.groupIndex + '.' + i},
{type: 'ENDTAG', name: 'a'}
],
ref.tokens // The original content tokens
out = out.concat([
{
type: 'TAG',
name: 'a',
attribs: [
['data-type', 'hashlink'],
['href', '#' + ref.linkbacks[0]]
]
},
// XXX: make formatNum available!
//{
// type: 'TEXT',
// value: env.formatNum( ref.groupIndex + '.' + i)
//},
{type: 'TEXT', value: ref.groupIndex + '.' + i},
{type: 'ENDTAG', name: 'a'}
],
ref.tokens // The original content tokens
);
});
}
@ -220,22 +252,35 @@ Cite.prototype.onReferences = function ( tokenCTX ) {
if (options.group in refGroups) {
var group = refGroups[options.group];
var listItems = $.map(group.refs, renderLine);
tokenCTX.token = [{
type: 'TAG',
name: 'ol',
attribs: [['class', 'references']]
}].concat(listItems, {type: 'ENDTAG', name: 'ol'});
tokenCTX.token = [
{
type: 'TAG',
name: 'ol',
attribs: [
['class', 'references']
]
}
].concat( listItems, { type: 'ENDTAG', name: 'ol' } );
} else {
tokenCTX.token = {
type: 'SELFCLOSINGTAG',
name: 'placeholder',
attribs: [['data-origNode', JSON.stringify(token)]]
attribs: [
['data-origNode', JSON.stringify(token)]
]
};
}
return tokenCTX;
};
/**
* Handle end token.
*
* @method
* @param {Object} TokenContext
* @returns {Object} TokenContext
*/
Cite.prototype.onEnd = function ( tokenCTX ) {
// XXX: Emit error messages if references tag was missing!
// Clean up