+++ /dev/null
-
-/**
- * Parse "Range" header `str` relative to the given file `size`.
- *
- * @param {Number} size
- * @param {String} str
- * @return {Array}
- * @api public
- */
-
-module.exports = function(size, str){
- var valid = true;
- var i = str.indexOf('=');
-
- if (-1 == i) return -2;
-
- var arr = str.slice(i + 1).split(',').map(function(range){
- var range = range.split('-')
- , start = parseInt(range[0], 10)
- , end = parseInt(range[1], 10);
-
- // -nnn
- if (isNaN(start)) {
- start = size - end;
- end = size - 1;
- // nnn-
- } else if (isNaN(end)) {
- end = size - 1;
- }
-
- // limit last-byte-pos to current length
- if (end > size - 1) end = size - 1;
-
- // invalid
- if (isNaN(start)
- || isNaN(end)
- || start > end
- || start < 0) valid = false;
-
- return {
- start: start,
- end: end
- };
- });
-
- arr.type = str.slice(0, i);
-
- return valid ? arr : -1;
-};