de36b2aaba
Note that Prettier, purposely, has only limited [configuration options](https://prettier.io/docs/en/options.html). The configuration file is based on [the one in `mozilla central`](https://searchfox.org/mozilla-central/source/.prettierrc) with just a few additions (to avoid future breakage if the defaults ever changes). Prettier is being used for a couple of reasons: - To be consistent with `mozilla-central`, where Prettier is already in use across the tree. - To ensure a *consistent* coding style everywhere, which is automatically enforced during linting (since Prettier is used as an ESLint plugin). This thus ends "all" formatting disussions once and for all, removing the need for review comments on most stylistic matters. Many ESLint options are now redundant, and I've tried my best to remove all the now unnecessary options (but I may have missed some). Note also that since Prettier considers the `printWidth` option as a guide, rather than a hard rule, this patch resorts to a small hack in the ESLint config to ensure that *comments* won't become too long. *Please note:* This patch is generated automatically, by appending the `--fix` argument to the ESLint call used in the `gulp lint` task. It will thus require some additional clean-up, which will be done in a *separate* commit. (On a more personal note, I'll readily admit that some of the changes Prettier makes are *extremely* ugly. However, in the name of consistency we'll probably have to live with that.)
503 lines
17 KiB
JavaScript
503 lines
17 KiB
JavaScript
/* Copyright 2017 Mozilla Foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
import {
|
|
CFFCharset,
|
|
CFFCompiler,
|
|
CFFFDSelect,
|
|
CFFParser,
|
|
CFFStrings,
|
|
} from "../../src/core/cff_parser";
|
|
import { SEAC_ANALYSIS_ENABLED } from "../../src/core/fonts";
|
|
import { Stream } from "../../src/core/stream";
|
|
|
|
describe("CFFParser", function() {
|
|
function createWithNullProto(obj) {
|
|
var result = Object.create(null);
|
|
for (var i in obj) {
|
|
result[i] = obj[i];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// Stub that returns `0` for any privateDict key.
|
|
var privateDictStub = {
|
|
getByName(name) {
|
|
return 0;
|
|
},
|
|
};
|
|
|
|
var fontData, parser, cff;
|
|
|
|
beforeAll(function(done) {
|
|
// This example font comes from the CFF spec:
|
|
// http://www.adobe.com/content/dam/Adobe/en/devnet/font/pdfs/5176.CFF.pdf
|
|
var exampleFont =
|
|
"0100040100010101134142434445462b" +
|
|
"54696d65732d526f6d616e000101011f" +
|
|
"f81b00f81c02f81d03f819041c6f000d" +
|
|
"fb3cfb6efa7cfa1605e911b8f1120003" +
|
|
"01010813183030312e30303754696d65" +
|
|
"7320526f6d616e54696d657300000002" +
|
|
"010102030e0e7d99f92a99fb7695f773" +
|
|
"8b06f79a93fc7c8c077d99f85695f75e" +
|
|
"9908fb6e8cf87393f7108b09a70adf0b" +
|
|
"f78e14";
|
|
var fontArr = [];
|
|
for (var i = 0, ii = exampleFont.length; i < ii; i += 2) {
|
|
var hex = exampleFont.substring(i, i + 2);
|
|
fontArr.push(parseInt(hex, 16));
|
|
}
|
|
fontData = new Stream(fontArr);
|
|
done();
|
|
});
|
|
|
|
afterAll(function() {
|
|
fontData = null;
|
|
});
|
|
|
|
beforeEach(function(done) {
|
|
parser = new CFFParser(fontData, {}, SEAC_ANALYSIS_ENABLED);
|
|
cff = parser.parse();
|
|
done();
|
|
});
|
|
|
|
afterEach(function(done) {
|
|
parser = cff = null;
|
|
done();
|
|
});
|
|
|
|
it("parses header", function() {
|
|
var header = cff.header;
|
|
expect(header.major).toEqual(1);
|
|
expect(header.minor).toEqual(0);
|
|
expect(header.hdrSize).toEqual(4);
|
|
expect(header.offSize).toEqual(1);
|
|
});
|
|
|
|
it("parses name index", function() {
|
|
var names = cff.names;
|
|
expect(names.length).toEqual(1);
|
|
expect(names[0]).toEqual("ABCDEF+Times-Roman");
|
|
});
|
|
|
|
it("parses string index", function() {
|
|
var strings = cff.strings;
|
|
expect(strings.count).toEqual(3);
|
|
expect(strings.get(0)).toEqual(".notdef");
|
|
expect(strings.get(391)).toEqual("001.007");
|
|
});
|
|
|
|
it("parses top dict", function() {
|
|
var topDict = cff.topDict;
|
|
// 391 version 392 FullName 393 FamilyName 389 Weight 28416 UniqueID
|
|
// -168 -218 1000 898 FontBBox 94 CharStrings 45 102 Private
|
|
expect(topDict.getByName("version")).toEqual(391);
|
|
expect(topDict.getByName("FullName")).toEqual(392);
|
|
expect(topDict.getByName("FamilyName")).toEqual(393);
|
|
expect(topDict.getByName("Weight")).toEqual(389);
|
|
expect(topDict.getByName("UniqueID")).toEqual(28416);
|
|
expect(topDict.getByName("FontBBox")).toEqual([-168, -218, 1000, 898]);
|
|
expect(topDict.getByName("CharStrings")).toEqual(94);
|
|
expect(topDict.getByName("Private")).toEqual([45, 102]);
|
|
});
|
|
|
|
it("refuses to add topDict key with invalid value (bug 1068432)", function() {
|
|
var topDict = cff.topDict;
|
|
var defaultValue = topDict.getByName("UnderlinePosition");
|
|
|
|
topDict.setByKey(/* [12, 3] = */ 3075, [NaN]);
|
|
expect(topDict.getByName("UnderlinePosition")).toEqual(defaultValue);
|
|
});
|
|
|
|
it(
|
|
"ignores reserved commands in parseDict, and refuses to add privateDict " +
|
|
"keys with invalid values (bug 1308536)",
|
|
function() {
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([
|
|
64, 39, 31, 30, 252, 114, 137, 115, 79, 30, 197, 119, 2, 99, 127, 6
|
|
]);
|
|
parser.bytes = bytes;
|
|
var topDict = cff.topDict;
|
|
topDict.setByName("Private", [bytes.length, 0]);
|
|
|
|
var parsePrivateDict = function() {
|
|
parser.parsePrivateDict(topDict);
|
|
};
|
|
expect(parsePrivateDict).not.toThrow();
|
|
|
|
var privateDict = topDict.privateDict;
|
|
expect(privateDict.getByName("BlueValues")).toBeNull();
|
|
}
|
|
);
|
|
|
|
it("parses a CharString having cntrmask", function() {
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0, 1, // count
|
|
1, // offsetSize
|
|
0, // offset[0]
|
|
38, // end
|
|
149, 149, 149, 149, 149, 149, 149, 149,
|
|
149, 149, 149, 149, 149, 149, 149, 149,
|
|
1, // hstem
|
|
149, 149, 149, 149, 149, 149, 149, 149,
|
|
149, 149, 149, 149, 149, 149, 149, 149,
|
|
3, // vstem
|
|
20, // cntrmask
|
|
22, 22, // fail if misparsed as hmoveto
|
|
14 // endchar
|
|
]);
|
|
parser.bytes = bytes;
|
|
var charStringsIndex = parser.parseIndex(0).obj;
|
|
var charStrings = parser.parseCharStrings({
|
|
charStrings: charStringsIndex,
|
|
privateDict: privateDictStub,
|
|
}).charStrings;
|
|
expect(charStrings.count).toEqual(1);
|
|
// shoudn't be sanitized
|
|
expect(charStrings.get(0).length).toEqual(38);
|
|
});
|
|
|
|
it("parses a CharString endchar with 4 args w/seac enabled", function() {
|
|
var parser = new CFFParser(fontData, {}, /* seacAnalysisEnabled = */ true);
|
|
parser.parse(); // cff
|
|
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0, 1, // count
|
|
1, // offsetSize
|
|
0, // offset[0]
|
|
237, 247, 22, 247, 72, 204, 247, 86, 14]);
|
|
parser.bytes = bytes;
|
|
var charStringsIndex = parser.parseIndex(0).obj;
|
|
var result = parser.parseCharStrings({
|
|
charStrings: charStringsIndex,
|
|
privateDict: privateDictStub,
|
|
});
|
|
expect(result.charStrings.count).toEqual(1);
|
|
expect(result.charStrings.get(0).length).toEqual(1);
|
|
expect(result.seacs.length).toEqual(1);
|
|
expect(result.seacs[0].length).toEqual(4);
|
|
expect(result.seacs[0][0]).toEqual(130);
|
|
expect(result.seacs[0][1]).toEqual(180);
|
|
expect(result.seacs[0][2]).toEqual(65);
|
|
expect(result.seacs[0][3]).toEqual(194);
|
|
});
|
|
|
|
it("parses a CharString endchar with 4 args w/seac disabled", function() {
|
|
var parser = new CFFParser(fontData, {}, /* seacAnalysisEnabled = */ false);
|
|
parser.parse(); // cff
|
|
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0, 1, // count
|
|
1, // offsetSize
|
|
0, // offset[0]
|
|
237, 247, 22, 247, 72, 204, 247, 86, 14]);
|
|
parser.bytes = bytes;
|
|
var charStringsIndex = parser.parseIndex(0).obj;
|
|
var result = parser.parseCharStrings({
|
|
charStrings: charStringsIndex,
|
|
privateDict: privateDictStub,
|
|
});
|
|
expect(result.charStrings.count).toEqual(1);
|
|
expect(result.charStrings.get(0).length).toEqual(9);
|
|
expect(result.seacs.length).toEqual(0);
|
|
});
|
|
|
|
it("parses a CharString endchar no args", function() {
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0, 1, // count
|
|
1, // offsetSize
|
|
0, // offset[0]
|
|
14]);
|
|
parser.bytes = bytes;
|
|
var charStringsIndex = parser.parseIndex(0).obj;
|
|
var result = parser.parseCharStrings({
|
|
charStrings: charStringsIndex,
|
|
privateDict: privateDictStub,
|
|
});
|
|
expect(result.charStrings.count).toEqual(1);
|
|
expect(result.charStrings.get(0)[0]).toEqual(14);
|
|
expect(result.seacs.length).toEqual(0);
|
|
});
|
|
|
|
it("parses predefined charsets", function() {
|
|
var charset = parser.parseCharsets(0, 0, null, true);
|
|
expect(charset.predefined).toEqual(true);
|
|
});
|
|
|
|
it("parses charset format 0", function() {
|
|
// The first three bytes make the offset large enough to skip predefined.
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0x00, 0x00, 0x00,
|
|
0x00, // format
|
|
0x00, 0x02 // sid/cid
|
|
]);
|
|
parser.bytes = bytes;
|
|
var charset = parser.parseCharsets(3, 2, new CFFStrings(), false);
|
|
expect(charset.charset[1]).toEqual("exclam");
|
|
|
|
// CID font
|
|
charset = parser.parseCharsets(3, 2, new CFFStrings(), true);
|
|
expect(charset.charset[1]).toEqual(2);
|
|
});
|
|
|
|
it("parses charset format 1", function() {
|
|
// The first three bytes make the offset large enough to skip predefined.
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0x00, 0x00, 0x00,
|
|
0x01, // format
|
|
0x00, 0x08, // sid/cid start
|
|
0x01 // sid/cid left
|
|
]);
|
|
parser.bytes = bytes;
|
|
var charset = parser.parseCharsets(3, 2, new CFFStrings(), false);
|
|
expect(charset.charset).toEqual([".notdef", "quoteright", "parenleft"]);
|
|
|
|
// CID font
|
|
charset = parser.parseCharsets(3, 2, new CFFStrings(), true);
|
|
expect(charset.charset).toEqual([".notdef", 8, 9]);
|
|
});
|
|
|
|
it("parses charset format 2", function() {
|
|
// format 2 is the same as format 1 but the left is card16
|
|
// The first three bytes make the offset large enough to skip predefined.
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0x00, 0x00, 0x00,
|
|
0x02, // format
|
|
0x00, 0x08, // sid/cid start
|
|
0x00, 0x01 // sid/cid left
|
|
]);
|
|
parser.bytes = bytes;
|
|
var charset = parser.parseCharsets(3, 2, new CFFStrings(), false);
|
|
expect(charset.charset).toEqual([".notdef", "quoteright", "parenleft"]);
|
|
|
|
// CID font
|
|
charset = parser.parseCharsets(3, 2, new CFFStrings(), true);
|
|
expect(charset.charset).toEqual([".notdef", 8, 9]);
|
|
});
|
|
|
|
it("parses encoding format 0", function() {
|
|
// The first two bytes make the offset large enough to skip predefined.
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0x00, 0x00,
|
|
0x00, // format
|
|
0x01, // count
|
|
0x08 // start
|
|
]);
|
|
parser.bytes = bytes;
|
|
var encoding = parser.parseEncoding(2, {}, new CFFStrings(), null);
|
|
expect(encoding.encoding).toEqual(createWithNullProto({ 0x8: 1 }));
|
|
});
|
|
|
|
it("parses encoding format 1", function() {
|
|
// The first two bytes make the offset large enough to skip predefined.
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0x00, 0x00,
|
|
0x01, // format
|
|
0x01, // num ranges
|
|
0x07, // range1 start
|
|
0x01 // range2 left
|
|
]);
|
|
parser.bytes = bytes;
|
|
var encoding = parser.parseEncoding(2, {}, new CFFStrings(), null);
|
|
expect(encoding.encoding).toEqual(
|
|
createWithNullProto({ 0x7: 0x01, 0x08: 0x02 })
|
|
);
|
|
});
|
|
|
|
it("parses fdselect format 0", function() {
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0x00, // format
|
|
0x00, // gid: 0 fd: 0
|
|
0x01 // gid: 1 fd: 1
|
|
]);
|
|
parser.bytes = bytes.slice();
|
|
var fdSelect = parser.parseFDSelect(0, 2);
|
|
|
|
expect(fdSelect.fdSelect).toEqual([0, 1]);
|
|
expect(fdSelect.format).toEqual(0);
|
|
});
|
|
|
|
it("parses fdselect format 3", function() {
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0x03, // format
|
|
0x00, 0x02, // range count
|
|
0x00, 0x00, // first gid
|
|
0x09, // font dict 1 id
|
|
0x00, 0x02, // next gid
|
|
0x0a, // font dict 2 id
|
|
0x00, 0x04 // sentinel (last gid)
|
|
]);
|
|
parser.bytes = bytes.slice();
|
|
var fdSelect = parser.parseFDSelect(0, 4);
|
|
|
|
expect(fdSelect.fdSelect).toEqual([9, 9, 0xa, 0xa]);
|
|
expect(fdSelect.format).toEqual(3);
|
|
});
|
|
|
|
it("parses invalid fdselect format 3 (bug 1146106)", function() {
|
|
// prettier-ignore
|
|
var bytes = new Uint8Array([0x03, // format
|
|
0x00, 0x02, // range count
|
|
0x00, 0x01, // first gid (invalid)
|
|
0x09, // font dict 1 id
|
|
0x00, 0x02, // next gid
|
|
0x0a, // font dict 2 id
|
|
0x00, 0x04 // sentinel (last gid)
|
|
]);
|
|
parser.bytes = bytes.slice();
|
|
var fdSelect = parser.parseFDSelect(0, 4);
|
|
|
|
expect(fdSelect.fdSelect).toEqual([9, 9, 0xa, 0xa]);
|
|
expect(fdSelect.format).toEqual(3);
|
|
});
|
|
|
|
// TODO fdArray
|
|
});
|
|
|
|
describe("CFFCompiler", function() {
|
|
function testParser(bytes) {
|
|
bytes = new Uint8Array(bytes);
|
|
return new CFFParser(
|
|
{
|
|
getBytes: () => {
|
|
return bytes;
|
|
},
|
|
},
|
|
{},
|
|
SEAC_ANALYSIS_ENABLED
|
|
);
|
|
}
|
|
|
|
it("encodes integers", function() {
|
|
var c = new CFFCompiler();
|
|
// all the examples from the spec
|
|
expect(c.encodeInteger(0)).toEqual([0x8b]);
|
|
expect(c.encodeInteger(100)).toEqual([0xef]);
|
|
expect(c.encodeInteger(-100)).toEqual([0x27]);
|
|
expect(c.encodeInteger(1000)).toEqual([0xfa, 0x7c]);
|
|
expect(c.encodeInteger(-1000)).toEqual([0xfe, 0x7c]);
|
|
expect(c.encodeInteger(10000)).toEqual([0x1c, 0x27, 0x10]);
|
|
expect(c.encodeInteger(-10000)).toEqual([0x1c, 0xd8, 0xf0]);
|
|
expect(c.encodeInteger(100000)).toEqual([0x1d, 0x00, 0x01, 0x86, 0xa0]);
|
|
expect(c.encodeInteger(-100000)).toEqual([0x1d, 0xff, 0xfe, 0x79, 0x60]);
|
|
});
|
|
|
|
it("encodes floats", function() {
|
|
var c = new CFFCompiler();
|
|
expect(c.encodeFloat(-2.25)).toEqual([0x1e, 0xe2, 0xa2, 0x5f]);
|
|
expect(c.encodeFloat(5e-11)).toEqual([0x1e, 0x5c, 0x11, 0xff]);
|
|
});
|
|
|
|
it("sanitizes name index", function() {
|
|
var c = new CFFCompiler();
|
|
var nameIndexCompiled = c.compileNameIndex(["[a"]);
|
|
var parser = testParser(nameIndexCompiled);
|
|
var nameIndex = parser.parseIndex(0);
|
|
var names = parser.parseNameIndex(nameIndex.obj);
|
|
expect(names).toEqual(["_a"]);
|
|
|
|
var longName = "";
|
|
for (var i = 0; i < 129; i++) {
|
|
longName += "_";
|
|
}
|
|
nameIndexCompiled = c.compileNameIndex([longName]);
|
|
parser = testParser(nameIndexCompiled);
|
|
nameIndex = parser.parseIndex(0);
|
|
names = parser.parseNameIndex(nameIndex.obj);
|
|
expect(names[0].length).toEqual(127);
|
|
});
|
|
|
|
it("compiles fdselect format 0", function() {
|
|
var fdSelect = new CFFFDSelect(0, [3, 2, 1]);
|
|
var c = new CFFCompiler();
|
|
var out = c.compileFDSelect(fdSelect);
|
|
expect(out).toEqual([
|
|
0, // format
|
|
3, // gid: 0 fd 3
|
|
2, // gid: 1 fd 3
|
|
1, // gid: 2 fd 3
|
|
]);
|
|
});
|
|
|
|
it("compiles fdselect format 3", function() {
|
|
var fdSelect = new CFFFDSelect(3, [0, 0, 1, 1]);
|
|
var c = new CFFCompiler();
|
|
var out = c.compileFDSelect(fdSelect);
|
|
expect(out).toEqual([
|
|
3, // format
|
|
0, // nRanges (high)
|
|
2, // nRanges (low)
|
|
0, // range struct 0 - first (high)
|
|
0, // range struct 0 - first (low)
|
|
0, // range struct 0 - fd
|
|
0, // range struct 0 - first (high)
|
|
2, // range struct 0 - first (low)
|
|
1, // range struct 0 - fd
|
|
0, // sentinel (high)
|
|
4, // sentinel (low)
|
|
]);
|
|
});
|
|
|
|
it("compiles fdselect format 3, single range", function() {
|
|
var fdSelect = new CFFFDSelect(3, [0, 0]);
|
|
var c = new CFFCompiler();
|
|
var out = c.compileFDSelect(fdSelect);
|
|
expect(out).toEqual([
|
|
3, // format
|
|
0, // nRanges (high)
|
|
1, // nRanges (low)
|
|
0, // range struct 0 - first (high)
|
|
0, // range struct 0 - first (low)
|
|
0, // range struct 0 - fd
|
|
0, // sentinel (high)
|
|
2, // sentinel (low)
|
|
]);
|
|
});
|
|
|
|
it("compiles charset of CID font", function() {
|
|
var charset = new CFFCharset();
|
|
var c = new CFFCompiler();
|
|
var numGlyphs = 7;
|
|
var out = c.compileCharset(charset, numGlyphs, new CFFStrings(), true);
|
|
// All CID charsets get turned into a simple format 2.
|
|
expect(out).toEqual([
|
|
2, // format
|
|
0, // cid (high)
|
|
0, // cid (low)
|
|
0, // nLeft (high)
|
|
numGlyphs - 1, // nLeft (low)
|
|
]);
|
|
});
|
|
|
|
it("compiles charset of non CID font", function() {
|
|
var charset = new CFFCharset(false, 0, ["space", "exclam"]);
|
|
var c = new CFFCompiler();
|
|
var numGlyphs = 3;
|
|
var out = c.compileCharset(charset, numGlyphs, new CFFStrings(), false);
|
|
// All non-CID fonts use a format 0 charset.
|
|
expect(out).toEqual([
|
|
0, // format
|
|
0, // sid of 'space' (high)
|
|
1, // sid of 'space' (low)
|
|
0, // sid of 'exclam' (high)
|
|
2, // sid of 'exclam' (low)
|
|
]);
|
|
});
|
|
|
|
// TODO a lot more compiler tests
|
|
});
|