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// ============== Formatting extensions ============================
(function() {
// Define extensions for a few modes
CodeMirror.extendMode("css", {
commentStart: "/*",
commentEnd: "*/",
wordWrapChars: [";", "\\{", "\\}"],
autoFormatLineBreaks: function (text) {
return text.replace(new RegExp("(;|\\{|\\})([^\r\n])", "g"), "$1\n$2");
}
});
function jsNonBreakableBlocks(text) {
var nonBreakableRegexes = [/for\s*?\((.*?)\)/,
/\"(.*?)(\"|$)/,
/\'(.*?)(\'|$)/,
/\/\*(.*?)(\*\/|$)/,
/\/\/.*/];
var nonBreakableBlocks = [];
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;
}
CodeMirror.extendMode("javascript", {
commentStart: "/*",
commentEnd: "*/",
wordWrapChars: [";", "\\{", "\\}"],
autoFormatLineBreaks: function (text) {
var curPos = 0;
var split = this.jsonMode ? function(str) {
return str.replace(/([,{])/g, "$1\n").replace(/}/g, "\n}");
} : function(str) {
return str.replace(/(;|\{|\})([^\r\n;])/g, "$1\n$2");
};
var nonBreakableBlocks = jsNonBreakableBlocks(text), res = "";
if (nonBreakableBlocks != null) {
for (var i = 0; i < nonBreakableBlocks.length; i++) {
if (nonBreakableBlocks[i].start > curPos) { // Break lines till the block
res += split(text.substring(curPos, nonBreakableBlocks[i].start));
curPos = nonBreakableBlocks[i].start;
}
if (nonBreakableBlocks[i].start <= curPos
&& nonBreakableBlocks[i].end >= curPos) { // Skip non-breakable block
res += text.substring(curPos, nonBreakableBlocks[i].end);
curPos = nonBreakableBlocks[i].end;
}
}
if (curPos < text.length)
res += split(text.substr(curPos));
} else {
res = split(text);
}
return res.replace(/^\n*|\n*$/, "");
}
});
CodeMirror.extendMode("xml", {
commentStart: "<!--",
commentEnd: "-->",
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");
}
});
function localModeAt(cm, pos) {
return CodeMirror.innerMode(cm.getMode(), cm.getTokenAt(pos).state).mode;
}
function enumerateModesBetween(cm, line, start, end) {
var outer = cm.getMode(), text = cm.getLine(line);
if (end == null) end = text.length;
if (!outer.innerMode) return [{from: start, to: end, mode: outer}];
var state = cm.getTokenAt({line: line, ch: start}).state;
var mode = CodeMirror.innerMode(outer, state).mode;
var found = [], stream = new CodeMirror.StringStream(text);
stream.pos = stream.start = start;
for (;;) {
outer.token(stream, state);
var curMode = CodeMirror.innerMode(outer, state).mode;
if (curMode != mode) {
var cut = stream.start;
// Crappy heuristic to deal with the fact that a change in
// mode can occur both at the end and the start of a token,
// and we don't know which it was.
if (mode.name == "xml" && text.charAt(stream.pos - 1) == ">") cut = stream.pos;
found.push({from: start, to: cut, mode: mode});
start = cut;
mode = curMode;
}
if (stream.pos >= end) break;
stream.start = stream.pos;
}
if (start < end) found.push({from: start, to: end, mode: mode});
return found;
}
// Comment/uncomment the specified range
CodeMirror.defineExtension("commentRange", function (isComment, from, to) {
var curMode = localModeAt(this, from), cm = this;
this.operation(function() {
if (isComment) { // Comment range
cm.replaceRange(curMode.commentEnd, to);
cm.replaceRange(curMode.commentStart, from);
if (from.line == to.line && from.ch == to.ch) // An empty comment inserted - put cursor inside
cm.setCursor(from.line, from.ch + curMode.commentStart.length);
} else { // Uncomment range
var selText = cm.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);
}
cm.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, "smart");
}
});
});
// Applies automatic formatting to the specified range
CodeMirror.defineExtension("autoFormatRange", function (from, to) {
var cm = this;
cm.operation(function () {
for (var cur = from.line, end = to.line; cur <= end; ++cur) {
var f = {line: cur, ch: cur == from.line ? from.ch : 0};
var t = {line: cur, ch: cur == end ? to.ch : null};
var modes = enumerateModesBetween(cm, cur, f.ch, t.ch), mangled = "";
var text = cm.getRange(f, t);
for (var i = 0; i < modes.length; ++i) {
var part = modes.length > 1 ? text.slice(modes[i].from, modes[i].to) : text;
if (mangled) mangled += "\n";
if (modes[i].mode.autoFormatLineBreaks) {
mangled += modes[i].mode.autoFormatLineBreaks(part);
} else mangled += text;
}
if (mangled != text) {
for (var count = 0, pos = mangled.indexOf("\n"); pos != -1; pos = mangled.indexOf("\n", pos + 1), ++count) {}
cm.replaceRange(mangled, f, t);
cur += count;
end += count;
}
}
for (var cur = from.line + 1; cur <= end; ++cur)
cm.indentLine(cur, "smart");
cm.setSelection(from, cm.getCursor(false));
});
});
})();
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