Added distribution of a missing file used by tests.

[lyx.git] / src / LaTeXFeatures.cpp

diff --git a/src/LaTeXFeatures.cpp b/src/LaTeXFeatures.cpp
index e19e771dd8fd2968a41311fa3d97bbc069dba691..55db95350386506ffdbb6673b4f19ef90854dbcf 100644 (file)
--- a/src/LaTeXFeatures.cpp
+++ b/src/LaTeXFeatures.cpp
@@ -79,6 +79,15 @@ static docstring const lyxarrow_def = from_ascii(
        "{\\leavevmode\\,$\\triangleleft$\\,\\allowbreak}\n"
        "{\\leavevmode\\,$\\triangleright$\\,\\allowbreak}}");
 
+// ZERO WIDTH SPACE (ZWSP) is actually not a space character
+// but marks a line break opportunity. Several commands provide a
+// line break opportunity. They differ in side-effects:
+// \allowbreak prevents hyphenation after hyphen or dash + ZWSP
+// \linebreak[<n>] takes an optional argument denoting "urgency".
+// The \LyXZeroWidthSpace wrapper allows customization in the preamble.
+static docstring const lyxZWSP_def = from_ascii(
+       "\\newcommand*\\LyXZeroWidthSpace{\\hspace{0pt}}");
+
 // for quotes without babel. This does not give perfect results, but
 // anybody serious about non-english quotes should use babel (JMarc).
 
@@ -1317,6 +1326,9 @@ TexString LaTeXFeatures::getMacros() const
        if (mustProvide("lyxarrow"))
                macros << lyxarrow_def << '\n';
 
+       if (mustProvide("lyxzerowidthspace"))
+               macros << lyxZWSP_def << '\n';
+
        if (!usePolyglossia() && mustProvide("textgreek")) {
            // ensure LGR font encoding is defined also if fontenc is not loaded by LyX
                if (params_.main_font_encoding() == "default")