PDFBOX-6066: add comment

THausherr · THausherr · commit a5379f5588ee · 2025-09-12T08:46:54.000Z
git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1928360 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/fontbox/src/main/java/org/apache/fontbox/ttf/GlyphSubstitutionTable.java b/fontbox/src/main/java/org/apache/fontbox/ttf/GlyphSubstitutionTable.java
@@ -297,6 +297,8 @@ private LookupListTable readLookupList(TTFDataStream data, long offset) throws I
             lookups[i] = data.readUnsignedShort();
             if (lookups[i] == 0)
             {
+                // no early return here and in the other one; if we do, the file from PDFBOX-6066
+                // no longer renders properly.
                 LOG.error("lookups[{}] is 0 at offset {}", i, data.getCurrentPosition() - 2);
             }
             else if (offset + lookups[i] > data.getOriginalDataSize())

Original file line number	Diff line number	Diff line change
`@@ -297,6 +297,8 @@ private LookupListTable readLookupList(TTFDataStream data, long offset) throws I`
`297`	`297`	`lookups[i] = data.readUnsignedShort();`
`298`	`298`	`if (lookups[i] == 0)`
`299`	`299`	`{`
	`300`	`+ // no early return here and in the other one; if we do, the file from PDFBOX-6066`
	`301`	`+ // no longer renders properly.`
`300`	`302`	`LOG.error("lookups[{}] is 0 at offset {}", i, data.getCurrentPosition() - 2);`
`301`	`303`	`}`
`302`	`304`	`else if (offset + lookups[i] > data.getOriginalDataSize())`