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[CIDFontType2] Map characters missing in toUnicode to the private use area (bug 1028735 and issue 4881)

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This commit is contained in:
Jonas Jenwald 2014-06-28 12:38:25 +02:00
parent c5f4051a75
commit a7c786775d
4 changed files with 22 additions and 5 deletions
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17
src/core/fonts.js
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@ -2473,6 +2473,7 @@ var Font = (function FontClosure() {
var toUnicode = properties.toUnicode; var toUnicode = properties.toUnicode;
var isSymbolic = !!(properties.flags & FontFlags.Symbolic); var isSymbolic = !!(properties.flags & FontFlags.Symbolic);
var isIdentityUnicode = properties.isIdentityUnicode; var isIdentityUnicode = properties.isIdentityUnicode;
var isCidFontType2 = (properties.type === 'CIDFontType2');
var newMap = Object.create(null); var newMap = Object.create(null);
var toFontChar = []; var toFontChar = [];
var usedFontCharCodes = []; var usedFontCharCodes = [];
@ -2483,11 +2484,17 @@ var Font = (function FontClosure() {
var fontCharCode = originalCharCode; var fontCharCode = originalCharCode;
// First try to map the value to a unicode position if a non identity map // First try to map the value to a unicode position if a non identity map
// was created. // was created.
if (!isIdentityUnicode && toUnicode[originalCharCode] !== undefined) { if (!isIdentityUnicode) {
var unicode = toUnicode[fontCharCode]; if (toUnicode[originalCharCode] !== undefined) {
// TODO: Try to map ligatures to the correct spot. var unicode = toUnicode[fontCharCode];
if (unicode.length === 1) { // TODO: Try to map ligatures to the correct spot.
fontCharCode = unicode.charCodeAt(0); if (unicode.length === 1) {
fontCharCode = unicode.charCodeAt(0);
}
} else if (isCidFontType2) {
// For CIDFontType2, move characters not present in toUnicode
// to the private use area (fixes bug 1028735 and issue 4881).
fontCharCode = nextAvailableFontCharCode;
} }
} }
// Try to move control characters, special characters and already mapped // Try to move control characters, special characters and already mapped

1
test/pdfs/.gitignore vendored
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@ -56,6 +56,7 @@
!bug903856.pdf !bug903856.pdf
!bug850854.pdf !bug850854.pdf
!bug866395.pdf !bug866395.pdf
!bug1028735.pdf
!basicapi.pdf !basicapi.pdf
!mixedfonts.pdf !mixedfonts.pdf
!shading_extend.pdf !shading_extend.pdf

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test/pdfs/bug1028735.pdf Normal file
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9
test/test_manifest.json
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@ -176,6 +176,15 @@
"rounds": 1, "rounds": 1,
"type": "eq" "type": "eq"
}, },
{ "id": "bug1028735",
"file": "pdfs/bug1028735.pdf",
"md5": "5d1a2a87d176ff3b24e66af3cb2365be",
"rounds": 1,
"link": false,
"firstPage": 1,
"lastPage": 1,
"type": "eq"
},
{ "id": "issue1512", { "id": "issue1512",
"file": "pdfs/issue1512.pdf", "file": "pdfs/issue1512.pdf",
"md5": "41a19fe03d522346ee3baa732403fca4", "md5": "41a19fe03d522346ee3baa732403fca4",