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| 1 | +// CodeMirror, copyright (c) by Marijn Haverbeke and others |
| 2 | +// Distributed under an MIT license: https://codemirror.net/LICENSE |
| 3 | + |
| 4 | +(function(mod) { |
| 5 | + if (typeof exports == "object" && typeof module == "object") // CommonJS |
| 6 | + mod(require("../../lib/codemirror")); |
| 7 | + else if (typeof define == "function" && define.amd) // AMD |
| 8 | + define(["../../lib/codemirror"], mod); |
| 9 | + else // Plain browser env |
| 10 | + mod(CodeMirror); |
| 11 | +})(function(CodeMirror) { |
| 12 | + "use strict"; |
| 13 | + |
| 14 | + var noOptions = {}; |
| 15 | + var nonWS = /[^\s\u00a0]/; |
| 16 | + var Pos = CodeMirror.Pos; |
| 17 | + |
| 18 | + function firstNonWS(str) { |
| 19 | + var found = str.search(nonWS); |
| 20 | + return found == -1 ? 0 : found; |
| 21 | + } |
| 22 | + |
| 23 | + CodeMirror.commands.toggleComment = function(cm) { |
| 24 | + cm.toggleComment(); |
| 25 | + }; |
| 26 | + |
| 27 | + CodeMirror.defineExtension("toggleComment", function(options) { |
| 28 | + if (!options) options = noOptions; |
| 29 | + var cm = this; |
| 30 | + var minLine = Infinity, ranges = this.listSelections(), mode = null; |
| 31 | + for (var i = ranges.length - 1; i >= 0; i--) { |
| 32 | + var from = ranges[i].from(), to = ranges[i].to(); |
| 33 | + if (from.line >= minLine) continue; |
| 34 | + if (to.line >= minLine) to = Pos(minLine, 0); |
| 35 | + minLine = from.line; |
| 36 | + if (mode == null) { |
| 37 | + if (cm.uncomment(from, to, options)) mode = "un"; |
| 38 | + else { cm.lineComment(from, to, options); mode = "line"; } |
| 39 | + } else if (mode == "un") { |
| 40 | + cm.uncomment(from, to, options); |
| 41 | + } else { |
| 42 | + cm.lineComment(from, to, options); |
| 43 | + } |
| 44 | + } |
| 45 | + }); |
| 46 | + |
| 47 | + // Rough heuristic to try and detect lines that are part of multi-line string |
| 48 | + function probablyInsideString(cm, pos, line) { |
| 49 | + return /\bstring\b/.test(cm.getTokenTypeAt(Pos(pos.line, 0))) && !/^[\'\"\`]/.test(line) |
| 50 | + } |
| 51 | + |
| 52 | + function getMode(cm, pos) { |
| 53 | + var mode = cm.getMode() |
| 54 | + return mode.useInnerComments === false || !mode.innerMode ? mode : cm.getModeAt(pos) |
| 55 | + } |
| 56 | + |
| 57 | + CodeMirror.defineExtension("lineComment", function(from, to, options) { |
| 58 | + if (!options) options = noOptions; |
| 59 | + var self = this, mode = getMode(self, from); |
| 60 | + var firstLine = self.getLine(from.line); |
| 61 | + if (firstLine == null || probablyInsideString(self, from, firstLine)) return; |
| 62 | + |
| 63 | + var commentString = options.lineComment || mode.lineComment; |
| 64 | + if (!commentString) { |
| 65 | + if (options.blockCommentStart || mode.blockCommentStart) { |
| 66 | + options.fullLines = true; |
| 67 | + self.blockComment(from, to, options); |
| 68 | + } |
| 69 | + return; |
| 70 | + } |
| 71 | + |
| 72 | + var end = Math.min(to.ch != 0 || to.line == from.line ? to.line + 1 : to.line, self.lastLine() + 1); |
| 73 | + var pad = options.padding == null ? " " : options.padding; |
| 74 | + var blankLines = options.commentBlankLines || from.line == to.line; |
| 75 | + |
| 76 | + self.operation(function() { |
| 77 | + if (options.indent) { |
| 78 | + var baseString = null; |
| 79 | + for (var i = from.line; i < end; ++i) { |
| 80 | + var line = self.getLine(i); |
| 81 | + var whitespace = line.slice(0, firstNonWS(line)); |
| 82 | + if (baseString == null || baseString.length > whitespace.length) { |
| 83 | + baseString = whitespace; |
| 84 | + } |
| 85 | + } |
| 86 | + for (var i = from.line; i < end; ++i) { |
| 87 | + var line = self.getLine(i), cut = baseString.length; |
| 88 | + if (!blankLines && !nonWS.test(line)) continue; |
| 89 | + if (line.slice(0, cut) != baseString) cut = firstNonWS(line); |
| 90 | + self.replaceRange(baseString + commentString + pad, Pos(i, 0), Pos(i, cut)); |
| 91 | + } |
| 92 | + } else { |
| 93 | + for (var i = from.line; i < end; ++i) { |
| 94 | + if (blankLines || nonWS.test(self.getLine(i))) |
| 95 | + self.replaceRange(commentString + pad, Pos(i, 0)); |
| 96 | + } |
| 97 | + } |
| 98 | + }); |
| 99 | + }); |
| 100 | + |
| 101 | + CodeMirror.defineExtension("blockComment", function(from, to, options) { |
| 102 | + if (!options) options = noOptions; |
| 103 | + var self = this, mode = getMode(self, from); |
| 104 | + var startString = options.blockCommentStart || mode.blockCommentStart; |
| 105 | + var endString = options.blockCommentEnd || mode.blockCommentEnd; |
| 106 | + if (!startString || !endString) { |
| 107 | + if ((options.lineComment || mode.lineComment) && options.fullLines != false) |
| 108 | + self.lineComment(from, to, options); |
| 109 | + return; |
| 110 | + } |
| 111 | + if (/\bcomment\b/.test(self.getTokenTypeAt(Pos(from.line, 0)))) return |
| 112 | + |
| 113 | + var end = Math.min(to.line, self.lastLine()); |
| 114 | + if (end != from.line && to.ch == 0 && nonWS.test(self.getLine(end))) --end; |
| 115 | + |
| 116 | + var pad = options.padding == null ? " " : options.padding; |
| 117 | + if (from.line > end) return; |
| 118 | + |
| 119 | + self.operation(function() { |
| 120 | + if (options.fullLines != false) { |
| 121 | + var lastLineHasText = nonWS.test(self.getLine(end)); |
| 122 | + self.replaceRange(pad + endString, Pos(end)); |
| 123 | + self.replaceRange(startString + pad, Pos(from.line, 0)); |
| 124 | + var lead = options.blockCommentLead || mode.blockCommentLead; |
| 125 | + if (lead != null) for (var i = from.line + 1; i <= end; ++i) |
| 126 | + if (i != end || lastLineHasText) |
| 127 | + self.replaceRange(lead + pad, Pos(i, 0)); |
| 128 | + } else { |
| 129 | + self.replaceRange(endString, to); |
| 130 | + self.replaceRange(startString, from); |
| 131 | + } |
| 132 | + }); |
| 133 | + }); |
| 134 | + |
| 135 | + CodeMirror.defineExtension("uncomment", function(from, to, options) { |
| 136 | + if (!options) options = noOptions; |
| 137 | + var self = this, mode = getMode(self, from); |
| 138 | + var end = Math.min(to.ch != 0 || to.line == from.line ? to.line : to.line - 1, self.lastLine()), start = Math.min(from.line, end); |
| 139 | + |
| 140 | + // Try finding line comments |
| 141 | + var lineString = options.lineComment || mode.lineComment, lines = []; |
| 142 | + var pad = options.padding == null ? " " : options.padding, didSomething; |
| 143 | + lineComment: { |
| 144 | + if (!lineString) break lineComment; |
| 145 | + for (var i = start; i <= end; ++i) { |
| 146 | + var line = self.getLine(i); |
| 147 | + var found = line.indexOf(lineString); |
| 148 | + if (found > -1 && !/comment/.test(self.getTokenTypeAt(Pos(i, found + 1)))) found = -1; |
| 149 | + if (found == -1 && nonWS.test(line)) break lineComment; |
| 150 | + if (found > -1 && nonWS.test(line.slice(0, found))) break lineComment; |
| 151 | + lines.push(line); |
| 152 | + } |
| 153 | + self.operation(function() { |
| 154 | + for (var i = start; i <= end; ++i) { |
| 155 | + var line = lines[i - start]; |
| 156 | + var pos = line.indexOf(lineString), endPos = pos + lineString.length; |
| 157 | + if (pos < 0) continue; |
| 158 | + if (line.slice(endPos, endPos + pad.length) == pad) endPos += pad.length; |
| 159 | + didSomething = true; |
| 160 | + self.replaceRange("", Pos(i, pos), Pos(i, endPos)); |
| 161 | + } |
| 162 | + }); |
| 163 | + if (didSomething) return true; |
| 164 | + } |
| 165 | + |
| 166 | + // Try block comments |
| 167 | + var startString = options.blockCommentStart || mode.blockCommentStart; |
| 168 | + var endString = options.blockCommentEnd || mode.blockCommentEnd; |
| 169 | + if (!startString || !endString) return false; |
| 170 | + var lead = options.blockCommentLead || mode.blockCommentLead; |
| 171 | + var startLine = self.getLine(start), open = startLine.indexOf(startString) |
| 172 | + if (open == -1) return false |
| 173 | + var endLine = end == start ? startLine : self.getLine(end) |
| 174 | + var close = endLine.indexOf(endString, end == start ? open + startString.length : 0); |
| 175 | + var insideStart = Pos(start, open + 1), insideEnd = Pos(end, close + 1) |
| 176 | + if (close == -1 || |
| 177 | + !/comment/.test(self.getTokenTypeAt(insideStart)) || |
| 178 | + !/comment/.test(self.getTokenTypeAt(insideEnd)) || |
| 179 | + self.getRange(insideStart, insideEnd, "\n").indexOf(endString) > -1) |
| 180 | + return false; |
| 181 | + |
| 182 | + // Avoid killing block comments completely outside the selection. |
| 183 | + // Positions of the last startString before the start of the selection, and the first endString after it. |
| 184 | + var lastStart = startLine.lastIndexOf(startString, from.ch); |
| 185 | + var firstEnd = lastStart == -1 ? -1 : startLine.slice(0, from.ch).indexOf(endString, lastStart + startString.length); |
| 186 | + if (lastStart != -1 && firstEnd != -1 && firstEnd + endString.length != from.ch) return false; |
| 187 | + // Positions of the first endString after the end of the selection, and the last startString before it. |
| 188 | + firstEnd = endLine.indexOf(endString, to.ch); |
| 189 | + var almostLastStart = endLine.slice(to.ch).lastIndexOf(startString, firstEnd - to.ch); |
| 190 | + lastStart = (firstEnd == -1 || almostLastStart == -1) ? -1 : to.ch + almostLastStart; |
| 191 | + if (firstEnd != -1 && lastStart != -1 && lastStart != to.ch) return false; |
| 192 | + |
| 193 | + self.operation(function() { |
| 194 | + self.replaceRange("", Pos(end, close - (pad && endLine.slice(close - pad.length, close) == pad ? pad.length : 0)), |
| 195 | + Pos(end, close + endString.length)); |
| 196 | + var openEnd = open + startString.length; |
| 197 | + if (pad && startLine.slice(openEnd, openEnd + pad.length) == pad) openEnd += pad.length; |
| 198 | + self.replaceRange("", Pos(start, open), Pos(start, openEnd)); |
| 199 | + if (lead) for (var i = start + 1; i <= end; ++i) { |
| 200 | + var line = self.getLine(i), found = line.indexOf(lead); |
| 201 | + if (found == -1 || nonWS.test(line.slice(0, found))) continue; |
| 202 | + var foundEnd = found + lead.length; |
| 203 | + if (pad && line.slice(foundEnd, foundEnd + pad.length) == pad) foundEnd += pad.length; |
| 204 | + self.replaceRange("", Pos(i, found), Pos(i, foundEnd)); |
| 205 | + } |
| 206 | + }); |
| 207 | + return true; |
| 208 | + }); |
| 209 | +}); |
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