346 lines
8.5 KiB
JavaScript
346 lines
8.5 KiB
JavaScript
/**
|
|
* Copyright 2011 Adrian Lang
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS-IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
var async = require("async");
|
|
var CommonCode = require('./common_code');
|
|
var Changeset = CommonCode.require("/Changeset");
|
|
var padManager = require("../db/PadManager");
|
|
|
|
function getPadDokuWiki(pad, revNum, callback)
|
|
{
|
|
var atext = pad.atext;
|
|
var dokuwiki;
|
|
async.waterfall([
|
|
// fetch revision atext
|
|
|
|
|
|
function (callback)
|
|
{
|
|
if (revNum != undefined)
|
|
{
|
|
pad.getInternalRevisionAText(revNum, function (err, revisionAtext)
|
|
{
|
|
atext = revisionAtext;
|
|
callback(err);
|
|
});
|
|
}
|
|
else
|
|
{
|
|
callback(null);
|
|
}
|
|
},
|
|
|
|
// convert atext to dokuwiki text
|
|
|
|
function (callback)
|
|
{
|
|
dokuwiki = getDokuWikiFromAtext(pad, atext);
|
|
callback(null);
|
|
}],
|
|
// run final callback
|
|
|
|
|
|
function (err)
|
|
{
|
|
callback(err, dokuwiki);
|
|
});
|
|
}
|
|
|
|
function getDokuWikiFromAtext(pad, atext)
|
|
{
|
|
var apool = pad.apool();
|
|
var textLines = atext.text.slice(0, -1).split('\n');
|
|
var attribLines = Changeset.splitAttributionLines(atext.attribs, atext.text);
|
|
|
|
var tags = ['======', '=====', '**', '//', '__', 'del>'];
|
|
var props = ['heading1', 'heading2', 'bold', 'italic', 'underline', 'strikethrough'];
|
|
var anumMap = {};
|
|
|
|
props.forEach(function (propName, i)
|
|
{
|
|
var propTrueNum = apool.putAttrib([propName, true], true);
|
|
if (propTrueNum >= 0)
|
|
{
|
|
anumMap[propTrueNum] = i;
|
|
}
|
|
});
|
|
|
|
function getLineDokuWiki(text, attribs)
|
|
{
|
|
var propVals = [false, false, false];
|
|
var ENTER = 1;
|
|
var STAY = 2;
|
|
var LEAVE = 0;
|
|
|
|
// Use order of tags (b/i/u) as order of nesting, for simplicity
|
|
// and decent nesting. For example,
|
|
// <b>Just bold<b> <b><i>Bold and italics</i></b> <i>Just italics</i>
|
|
// becomes
|
|
// <b>Just bold <i>Bold and italics</i></b> <i>Just italics</i>
|
|
var taker = Changeset.stringIterator(text);
|
|
var assem = Changeset.stringAssembler();
|
|
|
|
function emitOpenTag(i)
|
|
{
|
|
if (tags[i].indexOf('>') !== -1) {
|
|
assem.append('<');
|
|
}
|
|
assem.append(tags[i]);
|
|
}
|
|
|
|
function emitCloseTag(i)
|
|
{
|
|
if (tags[i].indexOf('>') !== -1) {
|
|
assem.append('</');
|
|
}
|
|
assem.append(tags[i]);
|
|
}
|
|
|
|
var urls = _findURLs(text);
|
|
|
|
var idx = 0;
|
|
|
|
function processNextChars(numChars)
|
|
{
|
|
if (numChars <= 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
var iter = Changeset.opIterator(Changeset.subattribution(attribs, idx, idx + numChars));
|
|
idx += numChars;
|
|
|
|
while (iter.hasNext())
|
|
{
|
|
var o = iter.next();
|
|
var propChanged = false;
|
|
Changeset.eachAttribNumber(o.attribs, function (a)
|
|
{
|
|
if (a in anumMap)
|
|
{
|
|
var i = anumMap[a]; // i = 0 => bold, etc.
|
|
if (!propVals[i])
|
|
{
|
|
propVals[i] = ENTER;
|
|
propChanged = true;
|
|
}
|
|
else
|
|
{
|
|
propVals[i] = STAY;
|
|
}
|
|
}
|
|
});
|
|
for (var i = 0; i < propVals.length; i++)
|
|
{
|
|
if (propVals[i] === true)
|
|
{
|
|
propVals[i] = LEAVE;
|
|
propChanged = true;
|
|
}
|
|
else if (propVals[i] === STAY)
|
|
{
|
|
propVals[i] = true; // set it back
|
|
}
|
|
}
|
|
// now each member of propVal is in {false,LEAVE,ENTER,true}
|
|
// according to what happens at start of span
|
|
if (propChanged)
|
|
{
|
|
// leaving bold (e.g.) also leaves italics, etc.
|
|
var left = false;
|
|
for (var i = 0; i < propVals.length; i++)
|
|
{
|
|
var v = propVals[i];
|
|
if (!left)
|
|
{
|
|
if (v === LEAVE)
|
|
{
|
|
left = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (v === true)
|
|
{
|
|
propVals[i] = STAY; // tag will be closed and re-opened
|
|
}
|
|
}
|
|
}
|
|
|
|
for (var i = propVals.length - 1; i >= 0; i--)
|
|
{
|
|
if (propVals[i] === LEAVE)
|
|
{
|
|
emitCloseTag(i);
|
|
propVals[i] = false;
|
|
}
|
|
else if (propVals[i] === STAY)
|
|
{
|
|
emitCloseTag(i);
|
|
}
|
|
}
|
|
for (var i = 0; i < propVals.length; i++)
|
|
{
|
|
if (propVals[i] === ENTER || propVals[i] === STAY)
|
|
{
|
|
emitOpenTag(i);
|
|
propVals[i] = true;
|
|
}
|
|
}
|
|
// propVals is now all {true,false} again
|
|
} // end if (propChanged)
|
|
var chars = o.chars;
|
|
if (o.lines)
|
|
{
|
|
chars--; // exclude newline at end of line, if present
|
|
}
|
|
var s = taker.take(chars);
|
|
|
|
assem.append(_escapeDokuWiki(s));
|
|
} // end iteration over spans in line
|
|
for (var i = propVals.length - 1; i >= 0; i--)
|
|
{
|
|
if (propVals[i])
|
|
{
|
|
emitCloseTag(i);
|
|
propVals[i] = false;
|
|
}
|
|
}
|
|
} // end processNextChars
|
|
if (urls)
|
|
{
|
|
urls.forEach(function (urlData)
|
|
{
|
|
var startIndex = urlData[0];
|
|
var url = urlData[1];
|
|
var urlLength = url.length;
|
|
processNextChars(startIndex - idx);
|
|
assem.append('[[');
|
|
|
|
// Do not use processNextChars since a link does not contain syntax and
|
|
// needs no escaping
|
|
var iter = Changeset.opIterator(Changeset.subattribution(attribs, idx, idx + urlLength));
|
|
idx += urlLength;
|
|
assem.append(taker.take(iter.next().chars));
|
|
|
|
assem.append(']]');
|
|
});
|
|
}
|
|
processNextChars(text.length - idx);
|
|
|
|
return assem.toString() + "\n";
|
|
} // end getLineDokuWiki
|
|
var pieces = [];
|
|
|
|
for (var i = 0; i < textLines.length; i++)
|
|
{
|
|
var line = _analyzeLine(textLines[i], attribLines[i], apool);
|
|
var lineContent = getLineDokuWiki(line.text, line.aline);
|
|
|
|
if (line.listLevel && lineContent)
|
|
{
|
|
pieces.push(new Array(line.listLevel + 1).join(' ') + '* ');
|
|
}
|
|
pieces.push(lineContent);
|
|
}
|
|
|
|
return pieces.join('');
|
|
}
|
|
|
|
function _analyzeLine(text, aline, apool)
|
|
{
|
|
var line = {};
|
|
|
|
// identify list
|
|
var lineMarker = 0;
|
|
line.listLevel = 0;
|
|
if (aline)
|
|
{
|
|
var opIter = Changeset.opIterator(aline);
|
|
if (opIter.hasNext())
|
|
{
|
|
var listType = Changeset.opAttributeValue(opIter.next(), 'list', apool);
|
|
if (listType)
|
|
{
|
|
lineMarker = 1;
|
|
listType = /([a-z]+)([12345678])/.exec(listType);
|
|
if (listType)
|
|
{
|
|
line.listTypeName = listType[1];
|
|
line.listLevel = Number(listType[2]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (lineMarker)
|
|
{
|
|
line.text = text.substring(1);
|
|
line.aline = Changeset.subattribution(aline, 1);
|
|
}
|
|
else
|
|
{
|
|
line.text = text;
|
|
line.aline = aline;
|
|
}
|
|
|
|
return line;
|
|
}
|
|
|
|
exports.getPadDokuWikiDocument = function (padId, revNum, callback)
|
|
{
|
|
padManager.getPad(padId, function (err, pad)
|
|
{
|
|
if (err)
|
|
{
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
getPadDokuWiki(pad, revNum, callback);
|
|
});
|
|
}
|
|
|
|
function _escapeDokuWiki(s)
|
|
{
|
|
s = s.replace(/(\/\/|\*\*|__)/g, '%%$1%%');
|
|
return s;
|
|
}
|
|
|
|
// copied from ACE
|
|
var _REGEX_WORDCHAR = /[\u0030-\u0039\u0041-\u005A\u0061-\u007A\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u00FF\u0100-\u1FFF\u3040-\u9FFF\uF900-\uFDFF\uFE70-\uFEFE\uFF10-\uFF19\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFDC]/;
|
|
var _REGEX_SPACE = /\s/;
|
|
var _REGEX_URLCHAR = new RegExp('(' + /[-:@a-zA-Z0-9_.,~%+\/\\?=&#;()$]/.source + '|' + _REGEX_WORDCHAR.source + ')');
|
|
var _REGEX_URL = new RegExp(/(?:(?:https?|s?ftp|ftps|file|smb|afp|nfs|(x-)?man|gopher|txmt):\/\/|mailto:)/.source + _REGEX_URLCHAR.source + '*(?![:.,;])' + _REGEX_URLCHAR.source, 'g');
|
|
|
|
// returns null if no URLs, or [[startIndex1, url1], [startIndex2, url2], ...]
|
|
|
|
|
|
function _findURLs(text)
|
|
{
|
|
_REGEX_URL.lastIndex = 0;
|
|
var urls = null;
|
|
var execResult;
|
|
while ((execResult = _REGEX_URL.exec(text)))
|
|
{
|
|
urls = (urls || []);
|
|
var startIndex = execResult.index;
|
|
var url = execResult[0];
|
|
urls.push([startIndex, url]);
|
|
}
|
|
|
|
return urls;
|
|
}
|