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// Normalize input string
'use strict';
var TABS_SCAN_RE = /[\n\t]/g;
var NEWLINES_RE = /\r[\n\u0085]|[\u2424\u2028\u0085]/g;
var NULL_RE = /\u0000/g;
module.exports = function inline(state) {
var str, lineStart, lastTabPos;
// Normalize newlines
str = state.src.replace(NEWLINES_RE, '\n');
// Replace NULL characters
str = str.replace(NULL_RE, '\uFFFD');
// Replace tabs with proper number of spaces (1..4)
if (str.indexOf('\t') >= 0) {
lineStart = 0;
lastTabPos = 0;
str = str.replace(TABS_SCAN_RE, function (match, offset) {
var result;
if (str.charCodeAt(offset) === 0x0A) {
lineStart = offset + 1;
lastTabPos = 0;
return match;
}
result = ' '.slice((offset - lineStart - lastTabPos) % 4);
lastTabPos = offset - lineStart + 1;
return result;
});
}
state.src = str;
};