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Skip commands that have too few arguments

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- Commands that have too few args will be skipped
- Commands that have too many args will generate an info, but still
execute
This commit is contained in:
mduan 2013-01-10 18:00:44 -08:00
parent 4fa82683fa
commit 5ab3bb1e03
5 changed files with 297 additions and 91 deletions
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55
test/unit/evaluator_spec.js
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@ -32,13 +32,12 @@ describe('evaluator', function() {
var evaluator = new PartialEvaluator(new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('qTT');
var thrown = false;
try {
evaluator.getOperatorList(stream, new ResourcesMock(), []);
} catch (e) {
thrown = e;
}
expect(thrown).toNotEqual(false);
var result = evaluator.getOperatorList(stream, new ResourcesMock(), []);
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(1);
expect(result.fnArray[0]).toEqual('save');
expect(result.argsArray[0].length).toEqual(0);
});
it('should handle one operations', function() {
@ -84,14 +83,14 @@ describe('evaluator', function() {
'prefix');
var resources = new ResourcesMock();
resources.Res1 = {};
var stream = new StringStream('B*BBMC');
var stream = new StringStream('B*Bf*');
var result = evaluator.getOperatorList(stream, resources, []);
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(3);
expect(result.fnArray[0]).toEqual('eoFillStroke');
expect(result.fnArray[1]).toEqual('fillStroke');
expect(result.fnArray[2]).toEqual('beginMarkedContent');
expect(result.fnArray[2]).toEqual('eoFill');
});
it('should handle glued operations and operands', function() {
@ -112,19 +111,53 @@ describe('evaluator', function() {
it('should handle glued operations and literals', function() {
var evaluator = new PartialEvaluator(new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('trueifalserinulli');
var stream = new StringStream('trueifalserinullq');
var result = evaluator.getOperatorList(stream, new ResourcesMock(), []);
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(3);
expect(result.fnArray[0]).toEqual('setFlatness');
expect(result.fnArray[1]).toEqual('setRenderingIntent');
expect(result.fnArray[2]).toEqual('setFlatness');
expect(result.fnArray[2]).toEqual('save');
expect(result.argsArray.length).toEqual(3);
expect(result.argsArray[0].length).toEqual(1);
expect(result.argsArray[0][0]).toEqual(true);
expect(result.argsArray[1].length).toEqual(1);
expect(result.argsArray[1][0]).toEqual(false);
expect(result.argsArray[2].length).toEqual(0);
});
});
describe('validateNumberOfArgs', function() {
it('should execute if correct number of arguments', function() {
var evaluator = new PartialEvaluator(new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('5 1 d0');
var result = evaluator.getOperatorList(stream, new ResourcesMock(), []);
expect(result.argsArray[0][0]).toEqual(5);
expect(result.argsArray[0][1]).toEqual(1);
expect(result.fnArray[0]).toEqual('setCharWidth');
});
it('should execute if too many arguments', function() {
var evaluator = new PartialEvaluator(new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('5 1 4 d0');
var result = evaluator.getOperatorList(stream, new ResourcesMock(), []);
expect(result.argsArray[0][0]).toEqual(5);
expect(result.argsArray[0][1]).toEqual(1);
expect(result.argsArray[0][2]).toEqual(4);
expect(result.fnArray[0]).toEqual('setCharWidth');
});
it('should skip if too few arguments', function() {
var evaluator = new PartialEvaluator(new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('5 d0');
var result = evaluator.getOperatorList(stream, new ResourcesMock(), []);
expect(result.argsArray).toEqual([]);
expect(result.fnArray).toEqual([]);
});
});
});