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add a flag to throw if the unicode lookup fails for a character

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Eliot Jones
2018-01-14 19:01:58 +00:00
parent 4443cde229
commit b64eeffce2
2 changed files with 13 additions and 6 deletions
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11
src/UglyToad.PdfPig/Graphics/ContentStreamProcessor.cs
View File

@@ -16,6 +16,7 @@
{
private readonly IResourceStore resourceStore;
private readonly UserSpaceUnit userSpaceUnit;
private readonly bool isLenientParsing;
private Stack<CurrentGraphicsState> graphicsStack = new Stack<CurrentGraphicsState>();
@@ -25,10 +26,11 @@
public List<Letter> Letters = new List<Letter>();
public ContentStreamProcessor(PdfRectangle cropBox, IResourceStore resourceStore, UserSpaceUnit userSpaceUnit)
public ContentStreamProcessor(PdfRectangle cropBox, IResourceStore resourceStore, UserSpaceUnit userSpaceUnit, bool isLenientParsing)
{
this.resourceStore = resourceStore;
this.userSpaceUnit = userSpaceUnit;
this.isLenientParsing = isLenientParsing;
graphicsStack.Push(new CurrentGraphicsState());
}
@@ -104,7 +106,12 @@
{
var code = font.ReadCharacterCode(bytes, out int codeLength);
font.TryGetUnicode(code, out var unicode);
var foundUnicode = font.TryGetUnicode(code, out var unicode);
if (!foundUnicode && !isLenientParsing)
{
throw new InvalidOperationException($"We could not find the corresponding character with code {code} in font {font.Name}.");
}
var wordSpacing = 0m;
if (code == ' ' && codeLength == 1)

8
src/UglyToad.PdfPig/Parser/PageFactory.cs
View File

@@ -67,7 +67,7 @@
var bytes = contentStream.Decode(filterProvider);
content = GetContent(bytes, cropBox, userSpaceUnit);
content = GetContent(bytes, cropBox, userSpaceUnit, isLenientParsing);
}
else if (contents is COSArray arr)
{
@@ -91,7 +91,7 @@
bytes.AddRange(contentStream.Decode(filterProvider));
}
content = GetContent(bytes, cropBox, userSpaceUnit);
content = GetContent(bytes, cropBox, userSpaceUnit, isLenientParsing);
}
var page = new Page(number, mediaBox, cropBox, content);
@@ -99,7 +99,7 @@
return page;
}
private PageContent GetContent(IReadOnlyList<byte> contentBytes, CropBox cropBox, UserSpaceUnit userSpaceUnit)
private PageContent GetContent(IReadOnlyList<byte> contentBytes, CropBox cropBox, UserSpaceUnit userSpaceUnit, bool isLenientParsing)
{
if (Debugger.IsAttached)
{
@@ -108,7 +108,7 @@
var operations = pageContentParser.Parse(new ByteArrayInputBytes(contentBytes));
var context = new ContentStreamProcessor(cropBox.Bounds, resourceStore, userSpaceUnit);
var context = new ContentStreamProcessor(cropBox.Bounds, resourceStore, userSpaceUnit, isLenientParsing);
return context.Process(operations);
}