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'use strict';
var singleComment = 1;
var multiComment = 2;
function stripWithoutWhitespace() {
return '';
}
function stripWithWhitespace(str, start, end) {
return str.slice(start, end).replace(/\S/g, ' ');
}
module.exports = function (str, opts) {
opts = opts || {};
var currentChar;
var nextChar;
var insideString = false;
var insideComment = false;
var offset = 0;
var ret = '';
var strip = opts.whitespace === false ? stripWithoutWhitespace : stripWithWhitespace;
for (var i = 0; i < str.length; i++) {
currentChar = str[i];
nextChar = str[i + 1];
if (!insideComment && currentChar === '"') {
var escaped = str[i - 1] === '\\' && str[i - 2] !== '\\';
if (!escaped) {
insideString = !insideString;
}
}
if (insideString) {
continue;
}
if (!insideComment && currentChar + nextChar === '//') {
ret += str.slice(offset, i);
offset = i;
insideComment = singleComment;
i++;
} else if (insideComment === singleComment && currentChar + nextChar === '\r\n') {
i++;
insideComment = false;
ret += strip(str, offset, i);
offset = i;
continue;
} else if (insideComment === singleComment && currentChar === '\n') {
insideComment = false;
ret += strip(str, offset, i);
offset = i;
} else if (!insideComment && currentChar + nextChar === '/*') {
ret += str.slice(offset, i);
offset = i;
insideComment = multiComment;
i++;
continue;
} else if (insideComment === multiComment && currentChar + nextChar === '*/') {
i++;
insideComment = false;
ret += strip(str, offset, i + 1);
offset = i + 1;
continue;
}
}
return ret + (insideComment ? strip(str.substr(offset)) : str.substr(offset));
};
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