var EscapeStore = require('./escape-store');
var QuoteScanner = require('../utils/quote-scanner');
var SPECIAL_COMMENT_PREFIX = '/*!';
var COMMENT_PREFIX = '/*';
var COMMENT_SUFFIX = '*/';
var lineBreak = require('os').EOL;
function CommentsProcessor(context, keepSpecialComments, keepBreaks, saveWaypoints) {
this.comments = new EscapeStore('COMMENT');
this.specialComments = new EscapeStore('COMMENT_SPECIAL');
this.context = context;
this.restored = 0;
this.keepAll = keepSpecialComments == '*';
this.keepOne = keepSpecialComments == '1' || keepSpecialComments === 1;
this.keepBreaks = keepBreaks;
this.saveWaypoints = saveWaypoints;
}
function quoteScannerFor(data) {
var quoteMap = [];
new QuoteScanner(data).each(function (quotedString, _, startsAt) {
quoteMap.push([startsAt, startsAt + quotedString.length]);
});
return function (position) {
for (var i = 0, l = quoteMap.length; i < l; i++) {
if (quoteMap[i][0] < position && quoteMap[i][1] > position)
return true;
}
return false;
};
}
CommentsProcessor.prototype.escape = function (data) {
var tempData = [];
var nextStart = 0;
var nextEnd = 0;
var cursor = 0;
var indent = 0;
var breaksCount;
var lastBreakAt;
var newIndent;
var isQuotedAt = quoteScannerFor(data);
var saveWaypoints = this.saveWaypoints;
for (; nextEnd < data.length;) {
nextStart = data.indexOf(COMMENT_PREFIX, cursor);
if (nextStart == -1)
break;
if (isQuotedAt(nextStart)) {
tempData.push(data.substring(cursor, nextStart + COMMENT_PREFIX.length));
cursor = nextStart + COMMENT_PREFIX.length;
continue;
}
nextEnd = data.indexOf(COMMENT_SUFFIX, nextStart + COMMENT_PREFIX.length);
if (nextEnd == -1) {
this.context.warnings.push('Broken comment: \'' + data.substring(nextStart) + '\'.');
nextEnd = data.length - 2;
}
tempData.push(data.substring(cursor, nextStart));
var comment = data.substring(nextStart, nextEnd + COMMENT_SUFFIX.length);
var isSpecialComment = comment.indexOf(SPECIAL_COMMENT_PREFIX) === 0;
if (saveWaypoints) {
breaksCount = comment.split(lineBreak).length - 1;
lastBreakAt = comment.lastIndexOf(lineBreak);
newIndent = lastBreakAt > 0 ?
comment.substring(lastBreakAt + lineBreak.length).length :
indent + comment.length;
}
if (saveWaypoints || isSpecialComment) {
var metadata = saveWaypoints ? [breaksCount, newIndent] : null;
var placeholder = isSpecialComment ?
this.specialComments.store(comment, metadata) :
this.comments.store(comment, metadata);
tempData.push(placeholder);
}
if (saveWaypoints)
indent = newIndent + 1;
cursor = nextEnd + COMMENT_SUFFIX.length;
}
return tempData.length > 0 ?
tempData.join('') + data.substring(cursor, data.length) :
data;
};
function restore(context, data, from, isSpecial) {
var tempData = [];
var cursor = 0;
for (; cursor < data.length;) {
var nextMatch = from.nextMatch(data, cursor);
if (nextMatch.start < 0)
break;
tempData.push(data.substring(cursor, nextMatch.start));
var comment = from.restore(nextMatch.match);
if (isSpecial && (context.keepAll || (context.keepOne && context.restored === 0))) {
context.restored++;
tempData.push(comment);
cursor = nextMatch.end;
} else {
cursor = nextMatch.end + (context.keepBreaks && data.substring(nextMatch.end, nextMatch.end + lineBreak.length) == lineBreak ? lineBreak.length : 0);
}
}
return tempData.length > 0 ?
tempData.join('') + data.substring(cursor, data.length) :
data;
}
CommentsProcessor.prototype.restore = function (data) {
data = restore(this, data, this.comments, false);
data = restore(this, data, this.specialComments, true);
return data;
};
module.exports = CommentsProcessor;
# |
Change |
User |
Description |
Committed |
|
#1
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23539 |
jenbottom |
Adding the basic code for ember test appk, created with 'ember new' command |
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