From d7c5ad7d6263fd1baf9bfdbaa4c50b70ef2fbdb2 Mon Sep 17 00:00:00 2001 From: Alexander Sulfrian Date: Tue, 8 Jun 2010 08:22:05 +0200 Subject: reverted folder structure change for better mergeing with upstream --- trunk/infrastructure/ace/www/linestylefilter.js | 253 ++++++++++++++++++++++++ 1 file changed, 253 insertions(+) create mode 100644 trunk/infrastructure/ace/www/linestylefilter.js (limited to 'trunk/infrastructure/ace/www/linestylefilter.js') diff --git a/trunk/infrastructure/ace/www/linestylefilter.js b/trunk/infrastructure/ace/www/linestylefilter.js new file mode 100644 index 0000000..ef824cc --- /dev/null +++ b/trunk/infrastructure/ace/www/linestylefilter.js @@ -0,0 +1,253 @@ +// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.linestylefilter +// %APPJET%: import("etherpad.collab.ace.easysync2.Changeset"); + +/** + * Copyright 2009 Google Inc. + * + * 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. + */ + +// requires: easysync2.Changeset + +var linestylefilter = {}; + +linestylefilter.ATTRIB_CLASSES = { + 'bold':'tag:b', + 'italic':'tag:i', + 'underline':'tag:u', + 'strikethrough':'tag:s', + 'h1':'tag:h1', + 'h2':'tag:h2', + 'h3':'tag:h3', + 'h4':'tag:h4', + 'h5':'tag:h5', + 'h6':'tag:h6' +}; + +linestylefilter.getAuthorClassName = function(author) { + return "author-"+author.replace(/[^a-y0-9]/g, function(c) { + if (c == ".") return "-"; + return 'z'+c.charCodeAt(0)+'z'; + }); +}; + +// lineLength is without newline; aline includes newline, +// but may be falsy if lineLength == 0 +linestylefilter.getLineStyleFilter = function(lineLength, aline, + textAndClassFunc, apool) { + + if (lineLength == 0) return textAndClassFunc; + + var nextAfterAuthorColors = textAndClassFunc; + + var authorColorFunc = (function() { + var lineEnd = lineLength; + var curIndex = 0; + var extraClasses; + var leftInAuthor; + + function attribsToClasses(attribs) { + var classes = ''; + Changeset.eachAttribNumber(attribs, function(n) { + var key = apool.getAttribKey(n); + if (key) { + var value = apool.getAttribValue(n); + if (value) { + if (key == 'author') { + classes += ' '+linestylefilter.getAuthorClassName(value); + } + else if (key == 'list') { + classes += ' list:'+value; + } + else if (linestylefilter.ATTRIB_CLASSES[key]) { + classes += ' '+linestylefilter.ATTRIB_CLASSES[key]; + } + } + } + }); + return classes.substring(1); + } + + var attributionIter = Changeset.opIterator(aline); + var nextOp, nextOpClasses; + function goNextOp() { + nextOp = attributionIter.next(); + nextOpClasses = (nextOp.opcode && attribsToClasses(nextOp.attribs)); + } + goNextOp(); + function nextClasses() { + if (curIndex < lineEnd) { + extraClasses = nextOpClasses; + leftInAuthor = nextOp.chars; + goNextOp(); + while (nextOp.opcode && nextOpClasses == extraClasses) { + leftInAuthor += nextOp.chars; + goNextOp(); + } + } + } + nextClasses(); + + return function(txt, cls) { + while (txt.length > 0) { + if (leftInAuthor <= 0) { + // prevent infinite loop if something funny's going on + return nextAfterAuthorColors(txt, cls); + } + var spanSize = txt.length; + if (spanSize > leftInAuthor) { + spanSize = leftInAuthor; + } + var curTxt = txt.substring(0, spanSize); + txt = txt.substring(spanSize); + nextAfterAuthorColors(curTxt, (cls&&cls+" ")+extraClasses); + curIndex += spanSize; + leftInAuthor -= spanSize; + if (leftInAuthor == 0) { + nextClasses(); + } + } + }; + })(); + return authorColorFunc; +}; + +linestylefilter.getAtSignSplitterFilter = function(lineText, + textAndClassFunc) { + var at = /@/g; + at.lastIndex = 0; + var splitPoints = null; + var execResult; + while ((execResult = at.exec(lineText))) { + if (! splitPoints) { + splitPoints = []; + } + splitPoints.push(execResult.index); + } + + if (! splitPoints) return textAndClassFunc; + + return linestylefilter.textAndClassFuncSplitter(textAndClassFunc, + splitPoints); +}; + +linestylefilter.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]/; +linestylefilter.REGEX_URLCHAR = new RegExp('('+/[-:@a-zA-Z0-9_.,~%+\/\\?=&#;()$]/.source+'|'+linestylefilter.REGEX_WORDCHAR.source+')'); +linestylefilter.REGEX_URL = new RegExp(/(?:(?:https?|s?ftp|ftps|file|smb|afp|nfs|(x-)?man|gopher|txmt):\/\/|mailto:)/.source+linestylefilter.REGEX_URLCHAR.source+'*(?![:.,;])'+linestylefilter.REGEX_URLCHAR.source, 'g'); + +linestylefilter.getURLFilter = function(lineText, textAndClassFunc) { + linestylefilter.REGEX_URL.lastIndex = 0; + var urls = null; + var splitPoints = null; + var execResult; + while ((execResult = linestylefilter.REGEX_URL.exec(lineText))) { + if (! urls) { + urls = []; + splitPoints = []; + } + var startIndex = execResult.index; + var url = execResult[0]; + urls.push([startIndex, url]); + splitPoints.push(startIndex, startIndex + url.length); + } + + if (! urls) return textAndClassFunc; + + function urlForIndex(idx) { + for(var k=0; k= u[0] && idx < u[0]+u[1].length) { + return u[1]; + } + } + return false; + } + + var handleUrlsAfterSplit = (function() { + var curIndex = 0; + return function(txt, cls) { + var txtlen = txt.length; + var newCls = cls; + var url = urlForIndex(curIndex); + if (url) { + newCls += " url:"+url; + } + textAndClassFunc(txt, newCls); + curIndex += txtlen; + }; + })(); + + return linestylefilter.textAndClassFuncSplitter(handleUrlsAfterSplit, + splitPoints); +}; + +linestylefilter.textAndClassFuncSplitter = function(func, splitPointsOpt) { + var nextPointIndex = 0; + var idx = 0; + + // don't split at 0 + while (splitPointsOpt && + nextPointIndex < splitPointsOpt.length && + splitPointsOpt[nextPointIndex] == 0) { + nextPointIndex++; + } + + function spanHandler(txt, cls) { + if ((! splitPointsOpt) || nextPointIndex >= splitPointsOpt.length) { + func(txt, cls); + idx += txt.length; + } + else { + var splitPoints = splitPointsOpt; + var pointLocInSpan = splitPoints[nextPointIndex] - idx; + var txtlen = txt.length; + if (pointLocInSpan >= txtlen) { + func(txt, cls); + idx += txt.length; + if (pointLocInSpan == txtlen) { + nextPointIndex++; + } + } + else { + if (pointLocInSpan > 0) { + func(txt.substring(0, pointLocInSpan), cls); + idx += pointLocInSpan; + } + nextPointIndex++; + // recurse + spanHandler(txt.substring(pointLocInSpan), cls); + } + } + } + return spanHandler; +}; + +// domLineObj is like that returned by domline.createDomLine +linestylefilter.populateDomLine = function(textLine, aline, apool, + domLineObj) { + // remove final newline from text if any + var text = textLine; + if (text.slice(-1) == '\n') { + text = text.substring(0, text.length-1); + } + + function textAndClassFunc(tokenText, tokenClass) { + domLineObj.appendSpan(tokenText, tokenClass); + } + + var func = textAndClassFunc; + func = linestylefilter.getURLFilter(text, func); + func = linestylefilter.getLineStyleFilter(text.length, aline, + func, apool); + func(text, ''); +}; -- cgit v1.2.3-1-g7c22