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							- 'use strict';
 
- var gifRegexp = /^GIF8[79]a/;
 
- function isGIF (buffer) {
 
-   var signature = buffer.toString('ascii', 0, 6);
 
-   return (gifRegexp.test(signature));
 
- }
 
- function calculate(buffer) {
 
-   return {
 
-     'width': buffer.readUInt16LE(6),
 
-     'height': buffer.readUInt16LE(8)
 
-   };
 
- }
 
- module.exports = {
 
-   'detect': isGIF,
 
-   'calculate': calculate
 
- };
 
 
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