[FOP-2529] [PATCH] Avoid character remapping if font contains the same character multiple times

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: font/opentype
• Assignee: Unassigned
• Reporter: Matthias Reischenbacher
• Created: 24/Sep/15 20:11
• Updated: 13/Mar/17 09:16

Description

When using font Meiryo for japanese PDF output, some japanese characters where remapped, e.g. 青 (decimal unicode: 38738) was remapped to ⻘ (decimal unicode: 11992). My patch contains a changed MultiByteFont.findCharacterFromGlyphIndex() method that tries to preserve the original character, if possible, but falls back to the current behavior if not.

Preserving the original characters is important for a more predictable search behavior in PDF viewers. Since the characters were remapped, searching for the original character didn't show any results.