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Get any width (if one is present) in CFF parser

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- in charstring specs at page 21 (section 4.2): "Also, it may appear in the charstring as the difference from nominalWidthX" so the number we've on the stack doesn't have to be positive.
  - currently this bug has probably no visible effect
  - but when the font is loaded to be used with XFA, then the rendering is incorrect.
This commit is contained in:
Calixte Denizet 2021-05-17 14:16:57 +02:00
parent 2fc9f39436
commit d394188835
1 changed files with 3 additions and 1 deletions
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4
src/core/cff_parser.js
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@ -640,7 +640,9 @@ const CFFParser = (function CFFParserClosure() {
} else if (stackSize > 1) { } else if (stackSize > 1) {
warn("Found too many parameters for stack-clearing command"); warn("Found too many parameters for stack-clearing command");
} }
if (stackSize > 0 && stack[stackSize - 1] >= 0) { if (stackSize > 0) {
// Width can be any number since its the difference
// from nominalWidthX.
state.width = stack[stackSize - 1]; state.width = stack[stackSize - 1];
} }
} }