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address bugs and add tests

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This commit is contained in:
EliotJones 2025-07-06 17:42:47 -05:00
parent 7134032188
commit 8176903b4e
2 changed files with 884 additions and 803 deletions
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1651
src/UglyToad.PdfPig.Tests/Tokenization/Scanner/PdfTokenScannerTests.cs
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File diff suppressed because it is too large Load Diff

36
src/UglyToad.PdfPig/Tokenization/Scanner/PdfTokenScanner.cs
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@ -400,7 +400,7 @@
// Token is at end of stream or is followed by whitespace
if (!inputBytes.MoveNext() || ReadHelper.IsWhitespace(inputBytes.CurrentByte))
{
var location = inputBytes.CurrentOffset - EndstreamBytes.Length;
var location = inputBytes.CurrentOffset - EndstreamBytes.Length - 1;
endLocations.Push(new EndLoc(true, location, !isEndData));
isEndData = true;
@ -412,6 +412,12 @@
endStreamPosition = 0;
commonPartPosition = 0;
}
else
{
endStreamPosition = 0;
commonPartPosition = 0;
isEndData = false;
}
}
}
else if (inputBytes.CurrentByte == objPart[endObjPosition])
@ -444,6 +450,10 @@
}
}
}
else if (inputBytes.CurrentByte == endWordPart[0])
{
commonPartPosition = 1;
}
else
{
// We were reading 'end' but then we had a character mismatch.
@ -488,20 +498,22 @@
var dataLength = endLoc.Offset - startDataOffset;
// 3 characters, 'e', '\n' and possibly '\r'
inputBytes.Seek(endLoc.Offset - 3);
inputBytes.MoveNext();
inputBytes.Seek(endLoc.Offset - 1);
if (inputBytes.CurrentByte == '\r')
var adjustment = 0;
bool isWhitespace;
do
{
dataLength -= 3;
}
else
{
dataLength -= 2;
}
inputBytes.MoveNext();
isWhitespace = ReadHelper.IsWhitespace(inputBytes.CurrentByte);
if (isWhitespace)
{
adjustment++;
}
inputBytes.Seek(endLoc.Offset - 1 - adjustment);
} while (isWhitespace);
Memory<byte> data = new byte[dataLength];
Memory<byte> data = new byte[dataLength - adjustment];
inputBytes.Seek(streamDataStart);
inputBytes.Read(data.Span);