Add support for OpenType Font Collection (TTC) (#737)

Author: SethWen

core.js

@@ -917,6 +917,13 @@ export class FileTypeParser {
 			};
 		}
 
+		if (this.checkString('ttcf')) {
+			return {
+				ext: 'ttc',
+				mime: 'font/collection',
+			};
+		}
+
 		if (this.check([0xCF, 0xFA, 0xED, 0xFE])) {
 			return {
 				ext: 'macho',

fixture/fixture.ttc

@@ -124,6 +124,7 @@
 		"eot",
 		"ttf",
 		"otf",
+		"ttc",
 		"ico",
 		"flv",
 		"ps",

package.json

@@ -578,6 +578,7 @@ abortController.abort(); // Abort file-type reading from the Blob stream.
 - [`swf`](https://en.wikipedia.org/wiki/SWF) - Adobe Flash Player file
 - [`tar`](https://en.wikipedia.org/wiki/Tar_(computing)#File_format) - Tarball archive file
 - [`tif`](https://en.wikipedia.org/wiki/Tagged_Image_File_Format) - Tagged Image file
+- [`ttc`](https://en.wikipedia.org/wiki/TrueType#TrueType_Collection) - TrueType Collection font
 - [`ttf`](https://en.wikipedia.org/wiki/TrueType) - TrueType font
 - [`vcf`](https://en.wikipedia.org/wiki/VCard) - vCard
 - [`voc`](https://wiki.multimedia.cx/index.php/Creative_Voice) - Creative Voice File

readme.md

@@ -58,6 +58,7 @@ export const extensions = [
 	'eot',
 	'ttf',
 	'otf',
+	'ttc',
 	'ico',
 	'flv',
 	'ps',
@@ -239,6 +240,7 @@ export const mimeTypes = [
 	'application/vnd.ms-fontobject',
 	'font/ttf',
 	'font/otf',
+	'font/collection',
 	'image/x-icon',
 	'video/x-flv',
 	'application/postscript',