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CB-14145 remove old node_modules before patch fix
This commit is contained in:
Christopher J. Brody
-354
@@ -1,354 +0,0 @@
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var fs = require("fs");
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function Iterator(text) {
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var pos = 0, length = text.length;
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this.peek = function(num) {
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num = num || 0;
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if(pos + num >= length) { return null; }
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return text.charAt(pos + num);
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};
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this.next = function(inc) {
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inc = inc || 1;
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if(pos >= length) { return null; }
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return text.charAt((pos += inc) - inc);
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};
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this.pos = function() {
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return pos;
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};
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}
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var rWhitespace = /\s/;
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function isWhitespace(chr) {
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return rWhitespace.test(chr);
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}
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function consumeWhiteSpace(iter) {
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var start = iter.pos();
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while(isWhitespace(iter.peek())) { iter.next(); }
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return { type: "whitespace", start: start, end: iter.pos() };
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}
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function startsComment(chr) {
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return chr === "!" || chr === "#";
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}
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function isEOL(chr) {
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return chr == null || chr === "\n" || chr === "\r";
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}
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function consumeComment(iter) {
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var start = iter.pos();
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while(!isEOL(iter.peek())) { iter.next(); }
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return { type: "comment", start: start, end: iter.pos() };
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}
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function startsKeyVal(chr) {
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return !isWhitespace(chr) && !startsComment(chr);
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}
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function startsSeparator(chr) {
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return chr === "=" || chr === ":" || isWhitespace(chr);
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}
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function startsEscapedVal(chr) {
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return chr === "\\";
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}
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function consumeEscapedVal(iter) {
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var start = iter.pos();
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iter.next(); // move past "\"
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var curChar = iter.next();
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if(curChar === "u") { // encoded unicode char
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iter.next(4); // Read in the 4 hex values
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}
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return { type: "escaped-value", start: start, end: iter.pos() };
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}
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function consumeKey(iter) {
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var start = iter.pos(), children = [];
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var curChar;
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while((curChar = iter.peek()) !== null) {
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if(startsSeparator(curChar)) { break; }
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if(startsEscapedVal(curChar)) { children.push(consumeEscapedVal(iter)); continue; }
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iter.next();
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}
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return { type: "key", start: start, end: iter.pos(), children: children };
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}
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function consumeKeyValSeparator(iter) {
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var start = iter.pos();
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var seenHardSep = false, curChar;
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while((curChar = iter.peek()) !== null) {
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if(isEOL(curChar)) { break; }
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if(isWhitespace(curChar)) { iter.next(); continue; }
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if(seenHardSep) { break; }
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seenHardSep = (curChar === ":" || curChar === "=");
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if(seenHardSep) { iter.next(); continue; }
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break; // curChar is a non-separtor char
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}
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return { type: "key-value-separator", start: start, end: iter.pos() };
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}
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function startsLineBreak(iter) {
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return iter.peek() === "\\" && isEOL(iter.peek(1));
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}
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function consumeLineBreak(iter) {
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var start = iter.pos();
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iter.next(); // consume \
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if(iter.peek() === "\r") { iter.next(); }
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iter.next(); // consume \n
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var curChar;
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while((curChar = iter.peek()) !== null) {
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if(isEOL(curChar)) { break; }
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if(!isWhitespace(curChar)) { break; }
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iter.next();
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}
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return { type: "line-break", start: start, end: iter.pos() };
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}
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function consumeVal(iter) {
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var start = iter.pos(), children = [];
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var curChar;
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while((curChar = iter.peek()) !== null) {
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if(startsLineBreak(iter)) { children.push(consumeLineBreak(iter)); continue; }
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if(startsEscapedVal(curChar)) { children.push(consumeEscapedVal(iter)); continue; }
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if(isEOL(curChar)) { break; }
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iter.next();
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}
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return { type: "value", start: start, end: iter.pos(), children: children };
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}
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function consumeKeyVal(iter) {
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return {
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type: "key-value",
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start: iter.pos(),
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children: [
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consumeKey(iter),
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consumeKeyValSeparator(iter),
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consumeVal(iter)
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],
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end: iter.pos()
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};
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}
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var renderChild = {
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"escaped-value": function(child, text) {
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var type = text.charAt(child.start + 1);
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if(type === "t") { return "\t"; }
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if(type === "r") { return "\r"; }
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if(type === "n") { return "\n"; }
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if(type === "f") { return "\f"; }
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if(type !== "u") { return type; }
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return String.fromCharCode(parseInt(text.substr(child.start + 2, 4), 16));
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},
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"line-break": function (child, text) {
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return "";
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}
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};
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function rangeToBuffer(range, text) {
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var start = range.start, buffer = [];
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for(var i = 0; i < range.children.length; i++) {
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var child = range.children[i];
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buffer.push(text.substring(start, child.start));
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buffer.push(renderChild[child.type](child, text));
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start = child.end;
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}
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buffer.push(text.substring(start, range.end));
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return buffer;
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}
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function rangesToObject(ranges, text) {
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var obj = Object.create(null); // Creates to a true hash map
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for(var i = 0; i < ranges.length; i++) {
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var range = ranges[i];
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if(range.type !== "key-value") { continue; }
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var key = rangeToBuffer(range.children[0], text).join("");
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var val = rangeToBuffer(range.children[2], text).join("");
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obj[key] = val;
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}
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return obj;
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}
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function stringToRanges(text) {
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var iter = new Iterator(text), ranges = [];
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var curChar;
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while((curChar = iter.peek()) !== null) {
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if(isWhitespace(curChar)) { ranges.push(consumeWhiteSpace(iter)); continue; }
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if(startsComment(curChar)) { ranges.push(consumeComment(iter)); continue; }
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if(startsKeyVal(curChar)) { ranges.push(consumeKeyVal(iter)); continue; }
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throw Error("Something crazy happened. text: '" + text + "'; curChar: '" + curChar + "'");
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}
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return ranges;
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}
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function isNewLineRange(range) {
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if(!range) { return false; }
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if(range.type === "whitespace") { return true; }
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if(range.type === "literal") {
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return isWhitespace(range.text) && range.text.indexOf("\n") > -1;
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}
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return false;
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}
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function Editor(text, path) {
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text = text || "";
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var ranges = stringToRanges(text);
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var obj = rangesToObject(ranges, text);
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var keyRange = Object.create(null); // Creates to a true hash map
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for(var i = 0; i < ranges.length; i++) {
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var range = ranges[i];
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if(range.type !== "key-value") { continue; }
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var key = rangeToBuffer(range.children[0], text).join("");
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keyRange[key] = range;
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}
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this.addHeadComment = function(comment) {
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if(comment == null) { return; }
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ranges.unshift({ type: "literal", text: "# " + comment.replace(/\n/g, "\n# ") + "\n" });
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};
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this.get = function(key) { return obj[key]; };
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this.set = function(key, val, comment) {
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if(val == null) { this.unset(key); return; }
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obj[key] = val;
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var range = keyRange[key];
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if(!range) {
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keyRange[key] = range = { type: "literal", text: key + "=" + val };
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var prevRange = ranges[ranges.length - 1];
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if(prevRange != null && !isNewLineRange(prevRange)) {
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ranges.push({ type: "literal", text: "\n" });
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}
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ranges.push(range);
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}
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// comment === null deletes comment. if comment === undefined, it's left alone
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if(comment !== undefined) {
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range.comment = comment && "# " + comment.replace(/\n/g, "\n# ") + "\n";
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}
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if(range.type === "literal") {
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range.text = key + "=" + val;
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if(range.comment != null) { range.text = range.comment + range.text; }
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} else if(range.type === "key-value") {
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range.children[2] = { type: "literal", text: val };
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} else {
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throw "Unknown node type: " + range.type;
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}
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};
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this.unset = function(key) {
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if(!(key in obj)) { return; }
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var range = keyRange[key];
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var idx = ranges.indexOf(range);
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ranges.splice(idx, (isNewLineRange(ranges[idx + 1]) ? 2 : 1));
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delete keyRange[key];
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delete obj[key];
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};
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this.valueOf = this.toString = function() {
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var buffer = [], stack = [].concat(ranges);
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var node;
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while((node = stack.shift()) != null) {
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switch(node.type) {
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case "literal":
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buffer.push(node.text);
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break;
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case "key":
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case "value":
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case "comment":
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case "whitespace":
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case "key-value-separator":
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case "escaped-value":
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case "line-break":
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buffer.push(text.substring(node.start, node.end));
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break;
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case "key-value":
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Array.prototype.unshift.apply(stack, node.children);
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if(node.comment) { stack.unshift({ type: "literal", text: node.comment }); }
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break;
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}
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}
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return buffer.join("");
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};
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this.save = function(newPath, callback) {
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if(typeof newPath === 'function') {
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callback = newPath;
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newPath = path;
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}
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newPath = newPath || path;
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if(!newPath) { callback("Unknown path"); }
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fs.writeFile(newPath, this.toString(), callback || function() {});
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};
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}
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function createEditor(path, callback) {
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if(!path) { return new Editor(); }
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if(!callback) { return new Editor(fs.readFileSync(path).toString(), path); }
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return fs.readFile(path, function(err, text) {
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if(err) { return callback(err, null); }
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text = text.toString();
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return callback(null, new Editor(text, path));
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});
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}
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function parse(text) {
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text = text.toString();
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var ranges = stringToRanges(text);
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return rangesToObject(ranges, text);
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}
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function read(path, callback) {
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if(!callback) { return parse(fs.readFileSync(path)); }
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return fs.readFile(path, function(err, data) {
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if(err) { return callback(err, null); }
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return callback(null, parse(data));
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});
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}
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module.exports = { parse: parse, read: read, createEditor: createEditor };
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