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(function() {
"use strict";
var noOptions = {};
var nonWS = /[^\s\u00a0]/;
var Pos = CodeMirror.Pos;
function firstNonWS(str) {
var found = str.search(nonWS);
return found == -1 ? 0 : found;
}
CodeMirror.commands.toggleComment = function(cm) {
var from = cm.getCursor("start"), to = cm.getCursor("end");
cm.uncomment(from, to) || cm.lineComment(from, to);
};
CodeMirror.defineExtension("lineComment", function(from, to, options) {
if (!options) options = noOptions;
var self = this, mode = self.getModeAt(from);
var commentString = options.lineComment || mode.lineComment;
if (!commentString) {
if (options.blockCommentStart || mode.blockCommentStart) {
options.fullLines = true;
self.blockComment(from, to, options);
}
return;
}
var firstLine = self.getLine(from.line);
if (firstLine == null) return;
var end = Math.min(to.ch != 0 || to.line == from.line ? to.line + 1 : to.line, self.lastLine() + 1);
var pad = options.padding == null ? " " : options.padding;
var blankLines = options.commentBlankLines || from.line == to.line;
self.operation(function() {
if (options.indent) {
var baseString = firstLine.slice(0, firstNonWS(firstLine));
for (var i = from.line; i < end; ++i) {
var line = self.getLine(i), cut = baseString.length;
if (!blankLines && !nonWS.test(line)) continue;
if (line.slice(0, cut) != baseString) cut = firstNonWS(line);
self.replaceRange(baseString + commentString + pad, Pos(i, 0), Pos(i, cut));
}
} else {
for (var i = from.line; i < end; ++i) {
if (blankLines || nonWS.test(self.getLine(i)))
self.replaceRange(commentString + pad, Pos(i, 0));
}
}
});
});
CodeMirror.defineExtension("blockComment", function(from, to, options) {
if (!options) options = noOptions;
var self = this, mode = self.getModeAt(from);
var startString = options.blockCommentStart || mode.blockCommentStart;
var endString = options.blockCommentEnd || mode.blockCommentEnd;
if (!startString || !endString) {
if ((options.lineComment || mode.lineComment) && options.fullLines != false)
self.lineComment(from, to, options);
return;
}
var end = Math.min(to.line, self.lastLine());
if (end != from.line && to.ch == 0 && nonWS.test(self.getLine(end))) --end;
var pad = options.padding == null ? " " : options.padding;
if (from.line > end) return;
self.operation(function() {
if (options.fullLines != false) {
var lastLineHasText = nonWS.test(self.getLine(end));
self.replaceRange(pad + endString, Pos(end));
self.replaceRange(startString + pad, Pos(from.line, 0));
var lead = options.blockCommentLead || mode.blockCommentLead;
if (lead != null) for (var i = from.line + 1; i <= end; ++i)
if (i != end || lastLineHasText)
self.replaceRange(lead + pad, Pos(i, 0));
} else {
self.replaceRange(endString, to);
self.replaceRange(startString, from);
}
});
});
CodeMirror.defineExtension("uncomment", function(from, to, options) {
if (!options) options = noOptions;
var self = this, mode = self.getModeAt(from);
var end = Math.min(to.line, self.lastLine()), start = Math.min(from.line, end);
// Try finding line comments
var lineString = options.lineComment || mode.lineComment, lines = [];
var pad = options.padding == null ? " " : options.padding, didSomething;
lineComment: {
if (!lineString) break lineComment;
for (var i = start; i <= end; ++i) {
var line = self.getLine(i);
var found = line.indexOf(lineString);
if (found == -1 && (i != end || i == start) && nonWS.test(line)) break lineComment;
if (i != start && found > -1 && nonWS.test(line.slice(0, found))) break lineComment;
lines.push(line);
}
self.operation(function() {
for (var i = start; i <= end; ++i) {
var line = lines[i - start];
var pos = line.indexOf(lineString), endPos = pos + lineString.length;
if (pos < 0) continue;
if (line.slice(endPos, endPos + pad.length) == pad) endPos += pad.length;
didSomething = true;
self.replaceRange("", Pos(i, pos), Pos(i, endPos));
}
});
if (didSomething) return true;
}
// Try block comments
var startString = options.blockCommentStart || mode.blockCommentStart;
var endString = options.blockCommentEnd || mode.blockCommentEnd;
if (!startString || !endString) return false;
var lead = options.blockCommentLead || mode.blockCommentLead;
var startLine = self.getLine(start), endLine = end == start ? startLine : self.getLine(end);
var open = startLine.indexOf(startString), close = endLine.lastIndexOf(endString);
if (close == -1 && start != end) {
endLine = self.getLine(--end);
close = endLine.lastIndexOf(endString);
}
if (open == -1 || close == -1) return false;
self.operation(function() {
self.replaceRange("", Pos(end, close - (pad && endLine.slice(close - pad.length, close) == pad ? pad.length : 0)),
Pos(end, close + endString.length));
var openEnd = open + startString.length;
if (pad && startLine.slice(openEnd, openEnd + pad.length) == pad) openEnd += pad.length;
self.replaceRange("", Pos(start, open), Pos(start, openEnd));
if (lead) for (var i = start + 1; i <= end; ++i) {
var line = self.getLine(i), found = line.indexOf(lead);
if (found == -1 || nonWS.test(line.slice(0, found))) continue;
var foundEnd = found + lead.length;
if (pad && line.slice(foundEnd, foundEnd + pad.length) == pad) foundEnd += pad.length;
self.replaceRange("", Pos(i, found), Pos(i, foundEnd));
}
});
return true;
});
})();
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