The Tor Browser: comparison browser/devtools/sourceeditor/codemirror/fold/xml-fold.js

comparison: browser/devtools/sourceeditor/codemirror/fold/xml-fold.js

browser/devtools/sourceeditor/codemirror/fold/xml-fold.js

changeset 0: 6474c204b198

equal deleted inserted replaced

--1:000000000000
+:2a14e7716967
+(function() {
+"use strict";
+var Pos = CodeMirror.Pos;
+function cmp(a, b) { return a.line - b.line || a.ch - b.ch; }
+var nameStartChar = "A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD";
+var nameChar = nameStartChar + "\-\:\.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040";
+var xmlTagStart = new RegExp("<(/?)([" + nameStartChar + "][" + nameChar + "]*)", "g");
+function Iter(cm, line, ch, range) {
+this.line = line; this.ch = ch;
+this.cm = cm; this.text = cm.getLine(line);
+this.min = range ? range.from : cm.firstLine();
+this.max = range ? range.to - 1 : cm.lastLine();
+}
+function tagAt(iter, ch) {
+var type = iter.cm.getTokenTypeAt(Pos(iter.line, ch));
+return type && /\btag\b/.test(type);
+}
+function nextLine(iter) {
+if (iter.line >= iter.max) return;
+iter.ch = 0;
+iter.text = iter.cm.getLine(++iter.line);
+return true;
+}
+function prevLine(iter) {
+if (iter.line <= iter.min) return;
+iter.text = iter.cm.getLine(--iter.line);
+iter.ch = iter.text.length;
+return true;
+}
+function toTagEnd(iter) {
+for (;;) {
+var gt = iter.text.indexOf(">", iter.ch);
+if (gt == -1) { if (nextLine(iter)) continue; else return; }
+if (!tagAt(iter, gt + 1)) { iter.ch = gt + 1; continue; }
+var lastSlash = iter.text.lastIndexOf("/", gt);
+var selfClose = lastSlash > -1 && !/\S/.test(iter.text.slice(lastSlash + 1, gt));
+iter.ch = gt + 1;
+return selfClose ? "selfClose" : "regular";
+}
+}
+function toTagStart(iter) {
+for (;;) {
+var lt = iter.ch ? iter.text.lastIndexOf("<", iter.ch - 1) : -1;
+if (lt == -1) { if (prevLine(iter)) continue; else return; }
+if (!tagAt(iter, lt + 1)) { iter.ch = lt; continue; }
+xmlTagStart.lastIndex = lt;
+iter.ch = lt;
+var match = xmlTagStart.exec(iter.text);
+if (match && match.index == lt) return match;
+}
+}
+function toNextTag(iter) {
+for (;;) {
+xmlTagStart.lastIndex = iter.ch;
+var found = xmlTagStart.exec(iter.text);
+if (!found) { if (nextLine(iter)) continue; else return; }
+if (!tagAt(iter, found.index + 1)) { iter.ch = found.index + 1; continue; }
+iter.ch = found.index + found[0].length;
+return found;
+}
+}
+function toPrevTag(iter) {
+for (;;) {
+var gt = iter.ch ? iter.text.lastIndexOf(">", iter.ch - 1) : -1;
+if (gt == -1) { if (prevLine(iter)) continue; else return; }
+if (!tagAt(iter, gt + 1)) { iter.ch = gt; continue; }
+var lastSlash = iter.text.lastIndexOf("/", gt);
+var selfClose = lastSlash > -1 && !/\S/.test(iter.text.slice(lastSlash + 1, gt));
+iter.ch = gt + 1;
+return selfClose ? "selfClose" : "regular";
+}
+}
+function findMatchingClose(iter, tag) {
+var stack = [];
+for (;;) {
+var next = toNextTag(iter), end, startLine = iter.line, startCh = iter.ch - (next ? next[0].length : 0);
+if (!next || !(end = toTagEnd(iter))) return;
+if (end == "selfClose") continue;
+if (next[1]) { // closing tag
+for (var i = stack.length - 1; i >= 0; --i) if (stack[i] == next[2]) {
+stack.length = i;
+break;
+}
+if (i < 0 && (!tag || tag == next[2])) return {
+tag: next[2],
+from: Pos(startLine, startCh),
+to: Pos(iter.line, iter.ch)
+};
+} else { // opening tag
+stack.push(next[2]);
+}
+}
+}
+function findMatchingOpen(iter, tag) {
+var stack = [];
+for (;;) {
+var prev = toPrevTag(iter);
+if (!prev) return;
+if (prev == "selfClose") { toTagStart(iter); continue; }
+var endLine = iter.line, endCh = iter.ch;
+var start = toTagStart(iter);
+if (!start) return;
+if (start[1]) { // closing tag
+stack.push(start[2]);
+} else { // opening tag
+for (var i = stack.length - 1; i >= 0; --i) if (stack[i] == start[2]) {
+stack.length = i;
+break;
+}
+if (i < 0 && (!tag || tag == start[2])) return {
+tag: start[2],
+from: Pos(iter.line, iter.ch),
+to: Pos(endLine, endCh)
+};
+}
+}
+}
+CodeMirror.registerHelper("fold", "xml", function(cm, start) {
+var iter = new Iter(cm, start.line, 0);
+for (;;) {
+var openTag = toNextTag(iter), end;
+if (!openTag || iter.line != start.line || !(end = toTagEnd(iter))) return;
+if (!openTag[1] && end != "selfClose") {
+var start = Pos(iter.line, iter.ch);
+var close = findMatchingClose(iter, openTag[2]);
+return close && {from: start, to: close.from};
+}
+}
+});
+CodeMirror.tagRangeFinder = CodeMirror.fold.xml; // deprecated
+CodeMirror.findMatchingTag = function(cm, pos, range) {
+var iter = new Iter(cm, pos.line, pos.ch, range);
+if (iter.text.indexOf(">") == -1 && iter.text.indexOf("<") == -1) return;
+var end = toTagEnd(iter), to = end && Pos(iter.line, iter.ch);
+var start = end && toTagStart(iter);
+if (!end || end == "selfClose" || !start || cmp(iter, pos) > 0) return;
+var here = {from: Pos(iter.line, iter.ch), to: to, tag: start[2]};
+if (start[1]) { // closing tag
+return {open: findMatchingOpen(iter, start[2]), close: here, at: "close"};
+} else { // opening tag
+iter = new Iter(cm, to.line, to.ch, range);
+return {open: here, close: findMatchingClose(iter, start[2]), at: "open"};
+}
+};
+CodeMirror.findEnclosingTag = function(cm, pos, range) {
+var iter = new Iter(cm, pos.line, pos.ch, range);
+for (;;) {
+var open = findMatchingOpen(iter);
+if (!open) break;
+var forward = new Iter(cm, pos.line, pos.ch, range);
+var close = findMatchingClose(forward, open.tag);
+if (close) return {open: open, close: close};
+}
+};
+// Used by addon/edit/closetag.js
+CodeMirror.scanForClosingTag = function(cm, pos, name, end) {
+var iter = new Iter(cm, pos.line, pos.ch, end ? {from: 0, to: end} : null);
+return !!findMatchingClose(iter, name);
+};
+})();