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Let Lexer.getNumber treat a single minus sign as zero (bug 1753983)

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This appears to be consistent with the behaviour in both Adobe Reader and PDFium (in Google Chrome); this is essentially the same approach as used for a single decimal point in PR 9827.
This commit is contained in:
Jonas Jenwald 2022-02-07 16:14:45 +01:00
parent acc758c40c
commit 64f3dbeb48
5 changed files with 27 additions and 12 deletions
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1
test/pdfs/bug1753983.pdf.link Normal file
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@ -0,0 +1 @@
https://bugzilla.mozilla.org/attachment.cgi?id=9262646

7
test/test_manifest.json
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@ -219,6 +219,13 @@
"lastPage": 3,
"type": "eq"
},
{ "id": "bug1753983",
"file": "pdfs/bug1753983.pdf",
"md5": "432be86262e5071176c49713ce458031",
"rounds": 1,
"link": true,
"type": "eq"
},
{ "id": "bug921760",
"file": "pdfs/bug921760.pdf",
"md5": "1aa136d786a65b0d7cce7bdb3c58c6c3",

12
test/unit/parser_spec.js
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@ -151,10 +151,14 @@ describe("parser", function () {
expect(plusLexer.getNumber()).toEqual(205.88);
});
it("should treat a single decimal point as zero", function () {
const input = new StringStream(".");
const lexer = new Lexer(input);
expect(lexer.getNumber()).toEqual(0);
it("should treat a single decimal point, or minus sign, as zero", function () {
const dotInput = new StringStream(".");
const dotLexer = new Lexer(dotInput);
expect(dotLexer.getNumber()).toEqual(0);
const minusInput = new StringStream("-");
const minusLexer = new Lexer(minusInput);
expect(minusLexer.getNumber()).toEqual(0);
const numbers = ["..", "-.", "+.", "-\r\n.", "+\r\n."];
for (const number of numbers) {