Preload glyphtounicode.tex

latex3 · Jan 30, 2021 · 203801e · 203801e
1 parent 6f86770
commit 203801e
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Showing 3 changed files with 5,541 additions and 1 deletion.
diff --git a/base/build.lua b/base/build.lua
@@ -126,6 +126,7 @@ dynamicfiles = {"*.tst"}
 unpackfiles     = {"unpack.ins"}
 unpacksuppfiles =
   {
+    "glyphtounicode.tex",
     "hyphen.cfg",
     "UShyphen.tex",
     "ot1lmr.fd",

diff --git a/base/ltfinal.dtx b/base/ltfinal.dtx
@@ -33,7 +33,7 @@
 %<*driver>
 % \fi
 \ProvidesFile{ltfinal.dtx}
-             [2021/01/15 v2.2l LaTeX Kernel (Final Settings)]
+             [2021/01/21 v2.2l LaTeX Kernel (Final Settings)]
 % \iffalse
 \documentclass{ltxdoc}
 \GetFileInfo{ltfinal.dtx}
@@ -566,6 +566,34 @@
 \fi
 %    \end{macrocode}
 %
+%   For pdf\TeX\ preload and enable automatic glyph to Unicode mapping
+%   for more reliable copy and paste support.
+%   \changes{v2.2l}{2021/01/21}{Load glyphtounicode.tex for pdf\TeX}
+%
+%    \begin{macrocode}
+%</2ekernel>
+%<*2ekernel|latexrelease>
+%<latexrelease>\IncludeInRelease{2021/05/01}%
+%<latexrelease>                 {\pdfgentounicode}{Preload glyphtounicode}%
+\ifx \pdfgentounicode \@undefined \else
+  \input glyphtounicode
+  \pdfgentounicode=1
+\fi
+%</2ekernel|latexrelease>
+%<latexrelease>\EndIncludeInRelease
+%    \end{macrocode}
+%   When rolling back we can't unload the glyphtounicode mappings, but we
+%   can reset |\pdfgentounicode| to ensure that they aren't used.
+%    \begin{macrocode}
+%<latexrelease>\IncludeInRelease{0000/00/00}%
+%<latexrelease>                 {\pdfgentounicode}{Preload glyphtounicode}%
+%<latexrelease>\ifx \pdfgentounicode \@undefined \else
+%<latexrelease>  \pdfgentounicode=0
+%<latexrelease>\fi
+%<latexrelease>\EndIncludeInRelease
+%<*2ekernel>
+%    \end{macrocode}
+%
 % \subsection{Input encoding}
 %
 % \changes{v2.1a}{2018/03/25}{default to UTF-8}