From 3a754133dbc138390503341fd2e9beba3e43aa4b Mon Sep 17 00:00:00 2001 From: Jose Antonio Marquez Date: Fri, 27 Jan 2012 12:05:17 -0800 Subject: Merged old FileIO --- imports/codemirror/lib/util/formatting.js | 291 ++++++++++++++++++++++++++++++ 1 file changed, 291 insertions(+) create mode 100755 imports/codemirror/lib/util/formatting.js (limited to 'imports/codemirror/lib/util/formatting.js') diff --git a/imports/codemirror/lib/util/formatting.js b/imports/codemirror/lib/util/formatting.js new file mode 100755 index 00000000..986bcb8f --- /dev/null +++ b/imports/codemirror/lib/util/formatting.js @@ -0,0 +1,291 @@ +// ============== Formatting extensions ============================ +// A common storage for all mode-specific formatting features +if (!CodeMirror.modeExtensions) CodeMirror.modeExtensions = {}; + +// Returns the extension of the editor's current mode +CodeMirror.defineExtension("getModeExt", function () { + return CodeMirror.modeExtensions[this.getOption("mode")]; +}); + +// If the current mode is 'htmlmixed', returns the extension of a mode located at +// the specified position (can be htmlmixed, css or javascript). Otherwise, simply +// returns the extension of the editor's current mode. +CodeMirror.defineExtension("getModeExtAtPos", function (pos) { + var token = this.getTokenAt(pos); + if (token && token.state && token.state.mode) + return CodeMirror.modeExtensions[token.state.mode == "html" ? "htmlmixed" : token.state.mode]; + else + return this.getModeExt(); +}); + +// Comment/uncomment the specified range +CodeMirror.defineExtension("commentRange", function (isComment, from, to) { + var curMode = this.getModeExtAtPos(this.getCursor()); + if (isComment) { // Comment range + var commentedText = this.getRange(from, to); + this.replaceRange(curMode.commentStart + this.getRange(from, to) + curMode.commentEnd + , from, to); + if (from.line == to.line && from.ch == to.ch) { // An empty comment inserted - put cursor inside + this.setCursor(from.line, from.ch + curMode.commentStart.length); + } + } + else { // Uncomment range + var selText = this.getRange(from, to); + var startIndex = selText.indexOf(curMode.commentStart); + var endIndex = selText.lastIndexOf(curMode.commentEnd); + if (startIndex > -1 && endIndex > -1 && endIndex > startIndex) { + // Take string till comment start + selText = selText.substr(0, startIndex) + // From comment start till comment end + + selText.substring(startIndex + curMode.commentStart.length, endIndex) + // From comment end till string end + + selText.substr(endIndex + curMode.commentEnd.length); + } + this.replaceRange(selText, from, to); + } +}); + +// Applies automatic mode-aware indentation to the specified range +CodeMirror.defineExtension("autoIndentRange", function (from, to) { + var cmInstance = this; + this.operation(function () { + for (var i = from.line; i <= to.line; i++) { + cmInstance.indentLine(i); + } + }); +}); + +// Applies automatic formatting to the specified range +CodeMirror.defineExtension("autoFormatRange", function (from, to) { + var absStart = this.indexFromPos(from); + var absEnd = this.indexFromPos(to); + // Insert additional line breaks where necessary according to the + // mode's syntax + var res = this.getModeExt().autoFormatLineBreaks(this.getValue(), absStart, absEnd); + var cmInstance = this; + + // Replace and auto-indent the range + this.operation(function () { + cmInstance.replaceRange(res, from, to); + var startLine = cmInstance.posFromIndex(absStart).line; + var endLine = cmInstance.posFromIndex(absStart + res.length).line; + for (var i = startLine; i <= endLine; i++) { + cmInstance.indentLine(i); + } + }); +}); + +// Define extensions for a few modes + +CodeMirror.modeExtensions["css"] = { + commentStart: "/*", + commentEnd: "*/", + wordWrapChars: [";", "\\{", "\\}"], + autoFormatLineBreaks: function (text) { + return text.replace(new RegExp("(;|\\{|\\})([^\r\n])", "g"), "$1\n$2"); + } +}; + +CodeMirror.modeExtensions["javascript"] = { + commentStart: "/*", + commentEnd: "*/", + wordWrapChars: [";", "\\{", "\\}"], + + getNonBreakableBlocks: function (text) { + var nonBreakableRegexes = [ + new RegExp("for\\s*?\\(([\\s\\S]*?)\\)"), + new RegExp("'([\\s\\S]*?)('|$)"), + new RegExp("\"([\\s\\S]*?)(\"|$)"), + new RegExp("//.*([\r\n]|$)") + ]; + var nonBreakableBlocks = new Array(); + for (var i = 0; i < nonBreakableRegexes.length; i++) { + var curPos = 0; + while (curPos < text.length) { + var m = text.substr(curPos).match(nonBreakableRegexes[i]); + if (m != null) { + nonBreakableBlocks.push({ + start: curPos + m.index, + end: curPos + m.index + m[0].length + }); + curPos += m.index + Math.max(1, m[0].length); + } + else { // No more matches + break; + } + } + } + nonBreakableBlocks.sort(function (a, b) { + return a.start - b.start; + }); + + return nonBreakableBlocks; + }, + + autoFormatLineBreaks: function (text) { + var curPos = 0; + var reLinesSplitter = new RegExp("(;|\\{|\\})([^\r\n])", "g"); + var nonBreakableBlocks = this.getNonBreakableBlocks(text); + if (nonBreakableBlocks != null) { + var res = ""; + for (var i = 0; i < nonBreakableBlocks.length; i++) { + if (nonBreakableBlocks[i].start > curPos) { // Break lines till the block + res += text.substring(curPos, nonBreakableBlocks[i].start).replace(reLinesSplitter, "$1\n$2"); + curPos = nonBreakableBlocks[i].start; + } + if (nonBreakableBlocks[i].start <= curPos + && nonBreakableBlocks[i].end >= curPos) { // Skip non-breakable block + res += text.substring(curPos, nonBreakableBlocks[i].end); + curPos = nonBreakableBlocks[i].end; + } + } + if (curPos < text.length - 1) { + res += text.substr(curPos).replace(reLinesSplitter, "$1\n$2"); + } + return res; + } + else { + return text.replace(reLinesSplitter, "$1\n$2"); + } + } +}; + +CodeMirror.modeExtensions["xml"] = { + commentStart: "", + wordWrapChars: [">"], + + autoFormatLineBreaks: function (text) { + var lines = text.split("\n"); + var reProcessedPortion = new RegExp("(^\\s*?<|^[^<]*?)(.+)(>\\s*?$|[^>]*?$)"); + var reOpenBrackets = new RegExp("<", "g"); + var reCloseBrackets = new RegExp("(>)([^\r\n])", "g"); + for (var i = 0; i < lines.length; i++) { + var mToProcess = lines[i].match(reProcessedPortion); + if (mToProcess != null && mToProcess.length > 3) { // The line starts with whitespaces and ends with whitespaces + lines[i] = mToProcess[1] + + mToProcess[2].replace(reOpenBrackets, "\n$&").replace(reCloseBrackets, "$1\n$2") + + mToProcess[3]; + continue; + } + } + + return lines.join("\n"); + } +}; + +CodeMirror.modeExtensions["htmlmixed"] = { + commentStart: "", + wordWrapChars: [">", ";", "\\{", "\\}"], + + getModeInfos: function (text, absPos) { + var modeInfos = new Array(); + modeInfos[0] = + { + pos: 0, + modeExt: CodeMirror.modeExtensions["xml"], + modeName: "xml" + }; + + var modeMatchers = new Array(); + modeMatchers[0] = + { + regex: new RegExp("]*>([\\s\\S]*?)(]*>|$)", "i"), + modeExt: CodeMirror.modeExtensions["css"], + modeName: "css" + }; + modeMatchers[1] = + { + regex: new RegExp("]*>([\\s\\S]*?)(]*>|$)", "i"), + modeExt: CodeMirror.modeExtensions["javascript"], + modeName: "javascript" + }; + + var lastCharPos = (typeof (absPos) !== "undefined" ? absPos : text.length - 1); + // Detect modes for the entire text + for (var i = 0; i < modeMatchers.length; i++) { + var curPos = 0; + while (curPos <= lastCharPos) { + var m = text.substr(curPos).match(modeMatchers[i].regex); + if (m != null) { + if (m.length > 1 && m[1].length > 0) { + // Push block begin pos + var blockBegin = curPos + m.index + m[0].indexOf(m[1]); + modeInfos.push( + { + pos: blockBegin, + modeExt: modeMatchers[i].modeExt, + modeName: modeMatchers[i].modeName + }); + // Push block end pos + modeInfos.push( + { + pos: blockBegin + m[1].length, + modeExt: modeInfos[0].modeExt, + modeName: modeInfos[0].modeName + }); + curPos += m.index + m[0].length; + continue; + } + else { + curPos += m.index + Math.max(m[0].length, 1); + } + } + else { // No more matches + break; + } + } + } + // Sort mode infos + modeInfos.sort(function sortModeInfo(a, b) { + return a.pos - b.pos; + }); + + return modeInfos; + }, + + autoFormatLineBreaks: function (text, startPos, endPos) { + var modeInfos = this.getModeInfos(text); + var reBlockStartsWithNewline = new RegExp("^\\s*?\n"); + var reBlockEndsWithNewline = new RegExp("\n\\s*?$"); + var res = ""; + // Use modes info to break lines correspondingly + if (modeInfos.length > 1) { // Deal with multi-mode text + for (var i = 1; i <= modeInfos.length; i++) { + var selStart = modeInfos[i - 1].pos; + var selEnd = (i < modeInfos.length ? modeInfos[i].pos : endPos); + + if (selStart >= endPos) { // The block starts later than the needed fragment + break; + } + if (selStart < startPos) { + if (selEnd <= startPos) { // The block starts earlier than the needed fragment + continue; + } + selStart = startPos; + } + if (selEnd > endPos) { + selEnd = endPos; + } + var textPortion = text.substring(selStart, selEnd); + if (modeInfos[i - 1].modeName != "xml") { // Starting a CSS or JavaScript block + if (!reBlockStartsWithNewline.test(textPortion) + && selStart > 0) { // The block does not start with a line break + textPortion = "\n" + textPortion; + } + if (!reBlockEndsWithNewline.test(textPortion) + && selEnd < text.length - 1) { // The block does not end with a line break + textPortion += "\n"; + } + } + res += modeInfos[i - 1].modeExt.autoFormatLineBreaks(textPortion); + } + } + else { // Single-mode text + res = modeInfos[0].modeExt.autoFormatLineBreaks(text.substring(startPos, endPos)); + } + + return res; + } +}; -- cgit v1.2.3