-(function() {
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
var ie_lt8 = /MSIE \d/.test(navigator.userAgent) &&
(document.documentMode == null || document.documentMode < 8);
var Pos = CodeMirror.Pos;
var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};
- function findMatchingBracket(cm, where, strict) {
- var state = cm.state.matchBrackets;
- var maxScanLen = (state && state.maxScanLineLength) || 10000;
- var cur = where || cm.getCursor(), line = cm.getLineHandle(cur.line), pos = cur.ch - 1;
+ function findMatchingBracket(cm, where, strict, config) {
+ var line = cm.getLineHandle(where.line), pos = where.ch - 1;
var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)];
if (!match) return null;
- var forward = match.charAt(1) == ">", d = forward ? 1 : -1;
- if (strict && forward != (pos == cur.ch)) return null;
- var style = cm.getTokenTypeAt(Pos(cur.line, pos + 1));
+ var dir = match.charAt(1) == ">" ? 1 : -1;
+ if (strict && (dir > 0) != (pos == where.ch)) return null;
+ var style = cm.getTokenTypeAt(Pos(where.line, pos + 1));
+
+ var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config);
+ if (found == null) return null;
+ return {from: Pos(where.line, pos), to: found && found.pos,
+ match: found && found.ch == match.charAt(0), forward: dir > 0};
+ }
- var stack = [line.text.charAt(pos)], re = /[(){}[\]]/;
- function scan(line, lineNo, start) {
- if (!line.text) return;
- var pos = forward ? 0 : line.text.length - 1, end = forward ? line.text.length : -1;
- if (line.text.length > maxScanLen) return null;
- if (start != null) pos = start + d;
- for (; pos != end; pos += d) {
- var ch = line.text.charAt(pos);
- if (re.test(ch) && cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style) {
+ // bracketRegex is used to specify which type of bracket to scan
+ // should be a regexp, e.g. /[[\]]/
+ //
+ // Note: If "where" is on an open bracket, then this bracket is ignored.
+ //
+ // Returns false when no bracket was found, null when it reached
+ // maxScanLines and gave up
+ function scanForBracket(cm, where, dir, style, config) {
+ var maxScanLen = (config && config.maxScanLineLength) || 10000;
+ var maxScanLines = (config && config.maxScanLines) || 1000;
+
+ var stack = [];
+ var re = config && config.bracketRegex ? config.bracketRegex : /[(){}[\]]/;
+ var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)
+ : Math.max(cm.firstLine() - 1, where.line - maxScanLines);
+ for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {
+ var line = cm.getLine(lineNo);
+ if (!line) continue;
+ var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1;
+ if (line.length > maxScanLen) continue;
+ if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0);
+ for (; pos != end; pos += dir) {
+ var ch = line.charAt(pos);
+ if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {
var match = matching[ch];
- if (match.charAt(1) == ">" == forward) stack.push(ch);
- else if (stack.pop() != match.charAt(0)) return {pos: pos, match: false};
- else if (!stack.length) return {pos: pos, match: true};
+ if ((match.charAt(1) == ">") == (dir > 0)) stack.push(ch);
+ else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};
+ else stack.pop();
}
}
}
- for (var i = cur.line, found, e = forward ? Math.min(i + 100, cm.lineCount()) : Math.max(-1, i - 100); i != e; i+=d) {
- if (i == cur.line) found = scan(line, i, pos);
- else found = scan(cm.getLineHandle(i), i);
- if (found) break;
- }
- return {from: Pos(cur.line, pos), to: found && Pos(i, found.pos),
- match: found && found.match, forward: forward};
+ return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null;
}
- function matchBrackets(cm, autoclear) {
+ function matchBrackets(cm, autoclear, config) {
// Disable brace matching in long lines, since it'll cause hugely slow updates
var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000;
- var found = findMatchingBracket(cm);
- if (!found || cm.getLine(found.from.line).length > maxHighlightLen ||
- found.to && cm.getLine(found.to.line).length > maxHighlightLen)
- return;
+ var marks = [], ranges = cm.listSelections();
+ for (var i = 0; i < ranges.length; i++) {
+ var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, false, config);
+ if (match && cm.getLine(match.from.line).length <= maxHighlightLen) {
+ var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
+ marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style}));
+ if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen)
+ marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style}));
+ }
+ }
+
+ if (marks.length) {
+ // Kludge to work around the IE bug from issue #1193, where text
+ // input stops going to the textare whever this fires.
+ if (ie_lt8 && cm.state.focused) cm.display.input.focus();
- var style = found.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
- var one = cm.markText(found.from, Pos(found.from.line, found.from.ch + 1), {className: style});
- var two = found.to && cm.markText(found.to, Pos(found.to.line, found.to.ch + 1), {className: style});
- // Kludge to work around the IE bug from issue #1193, where text
- // input stops going to the textare whever this fires.
- if (ie_lt8 && cm.state.focused) cm.display.input.focus();
- var clear = function() {
- cm.operation(function() { one.clear(); two && two.clear(); });
- };
- if (autoclear) setTimeout(clear, 800);
- else return clear;
+ var clear = function() {
+ cm.operation(function() {
+ for (var i = 0; i < marks.length; i++) marks[i].clear();
+ });
+ };
+ if (autoclear) setTimeout(clear, 800);
+ else return clear;
+ }
}
var currentlyHighlighted = null;
function doMatchBrackets(cm) {
cm.operation(function() {
if (currentlyHighlighted) {currentlyHighlighted(); currentlyHighlighted = null;}
- if (!cm.somethingSelected()) currentlyHighlighted = matchBrackets(cm, false);
+ currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets);
});
}
});
CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);});
- CodeMirror.defineExtension("findMatchingBracket", function(pos, strict){
- return findMatchingBracket(this, pos, strict);
+ CodeMirror.defineExtension("findMatchingBracket", function(pos, strict, config){
+ return findMatchingBracket(this, pos, strict, config);
+ });
+ CodeMirror.defineExtension("scanForBracket", function(pos, dir, style, config){
+ return scanForBracket(this, pos, dir, style, config);
});
-})();
+});
projects / platform / framework / web / crosswalk.git / blobdiff