anne/lyx_mirror
1
0
Fork 0
mirror of https://git.lyx.org/repos/lyx.git synced 2024-11-09 18:31:04 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Do not error on missing ZWNJ (ligature break) characters.

Browse Source 
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
This commit is contained in:
Juergen Spitzmueller 2017-07-23 18:41:06 +02:00
parent 3c7b75c5bc
commit a40868510d
1 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/LaTeX.cpp
View File

@ -936,11 +936,18 @@ 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);
}
} else if (!wait_for_error.empty()) {
// We collect information until we know we have an error.
wait_for_error += token + '\n';