commit 5ba05b546b3a1b6ad9ec8bc618b3ac432e95de00
Author: Juergen Spitzmueller <sp...@lyx.org>
Date: Sun Jul 23 18:41:06 2017 +0200
Do not error on missing ZWNJ (ligature break) characters.
Since TeXLive 2016, "fontspec" maps the ligature break command
\textcompwordmark to the ZWNJ character (U+200C).
This character is missing in many fonts (including the default: Latin
Modern) which leads to "Missing character" warnings in the XeTeX/LuaTeX
log file if a document using non-TeX fonts contains a ligature break.
LyX reports missing characters as error since fixing #9610.
In case of "invisible" characters, there is no data loss, in case of the
ZWNJ the functionality is kept: ligatures are prevented also if the ZWNJ
is missing in a font.
Therefore, a missing ZWNJ is now treated similar to missing characters
in "nullfont" (see [63f41711/lyxgit], bug #10394) and does not trigger
an error.
Fixes: #10727
(cherry picked from commit a40868510d36ccdcf3c431cdee17f8204d4b258a)
---
src/LaTeX.cpp | 17 ++++++++++++-----
status.22x | 3 +++
2 files changed, 15 insertions(+), 5 deletions(-)
diff --git a/src/LaTeX.cpp b/src/LaTeX.cpp
index 46dda96..f3465d1 100644
--- a/src/LaTeX.cpp
+++ b/src/LaTeX.cpp
@@ -911,11 +911,18 @@ int LaTeX::scanLogFile(TeXErrors & terr)
// Warning about missing glyph in selected font
// may be dataloss (bug 9610)
// but can be ignored for 'nullfont' (bug
10394).
- retval |= LATEX_ERROR;
- terr.insertError(0,
- from_local8bit("Missing
glyphs!"),
- from_local8bit(token),
- child_name);
+ // as well as for ZERO WIDTH NON-JOINER
(0x200C) which is
+ // missing in many fonts and output for
ligature break (bug 10727).
+ // Since this error only occurs with utf8
output, we can safely assume
+ // that the log file is utf8-encoded
+ docstring const utoken = from_utf8(token);
+ if (!contains(utoken, 0x200C)) {
+ retval |= LATEX_ERROR;
+ terr.insertError(0,
+ from_ascii("Missing
glyphs!"),
+ utoken,
+ child_name);
+ }
}
}
}
diff --git a/status.22x b/status.22x
index 25416e1..9c1f2cc 100644
--- a/status.22x
+++ b/status.22x
@@ -49,6 +49,9 @@ What's new
- Catch "! Incomplete \if[x]" LaTeX error (bug 10666).
+- Ignore LaTeX error on missing ZWNJ (ligature break) characters
+ (bug 10727).
+
- Fix PDF output of clipped graphics with recent graphics package (bug 7910).
- Catch xdvipdfmx driver error that breaks XeTeX compilation (bug 10076).
