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Handle nested post script arguments in the preprocessor

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Fix for issue #4785
This commit is contained in:
Christian Krebs 2014-05-15 08:07:43 +02:00
parent 6d330250da
commit 3e7bcaa892
2 changed files with 30 additions and 4 deletions
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12
src/core/evaluator.js
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@ -1846,6 +1846,7 @@ var EvaluatorPreprocessor = (function EvaluatorPreprocessorClosure() {
// dictionary
this.parser = new Parser(new Lexer(stream, OP_MAP), false, xref);
this.stateManager = stateManager;
this.nonProcessedArgs = [];
}
EvaluatorPreprocessor.prototype = {
@ -1879,6 +1880,17 @@ var EvaluatorPreprocessor = (function EvaluatorPreprocessorClosure() {
var fn = opSpec.id;
// Some post script commands can be nested, e.g. /F2 /GS2 gs 5.711 Tf
if (!opSpec.variableArgs && args.length !== opSpec.numArgs) {
while (args.length > opSpec.numArgs) {
this.nonProcessedArgs.push(args.shift());
}
while (args.length < opSpec.numArgs && this.nonProcessedArgs.length) {
args.unshift(this.nonProcessedArgs.pop());
}
}
// Validate the number of arguments for the command
if (opSpec.variableArgs) {
if (args.length > opSpec.numArgs) {