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author | Karl Berry <karl@freefriends.org> | 2021-12-19 21:54:10 +0000 |
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committer | Karl Berry <karl@freefriends.org> | 2021-12-19 21:54:10 +0000 |
commit | d0d64b0d56bd771d290b0f5abc225508e50ce6f0 (patch) | |
tree | 076d2017902515d60e3eec6af94ca228ca6e1b12 /Master/texmf-dist/tex/generic/tex4ht | |
parent | 19611cb045aeda55b259bcce5145922b3baae741 (diff) |
support for backref, tex4ht r1034
git-svn-id: svn://tug.org/texlive/trunk@61348 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/tex/generic/tex4ht')
-rw-r--r-- | Master/texmf-dist/tex/generic/tex4ht/backref.4ht | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/generic/tex4ht/backref.4ht b/Master/texmf-dist/tex/generic/tex4ht/backref.4ht new file mode 100644 index 00000000000..198dc71ad3b --- /dev/null +++ b/Master/texmf-dist/tex/generic/tex4ht/backref.4ht @@ -0,0 +1,53 @@ +% backref.4ht (2021-12-19-13:31), generated from tex4ht-4ht.tex +% Copyright 2021 TeX Users Group +% +% This work may be distributed and/or modified under the +% conditions of the LaTeX Project Public License, either +% version 1.3c of this license or (at your option) any +% later version. The latest version of this license is in +% http://www.latex-project.org/lppl.txt +% and version 1.3c or later is part of all distributions +% of LaTeX version 2005/12/01 or later. +% +% This work has the LPPL maintenance status "maintained". +% +% The Current Maintainer of this work +% is the TeX4ht Project <http://tug.org/tex4ht>. +% +% If you modify this program, changing the +% version identification would be appreciated. +\immediate\write-1{version 2021-12-19-13:31} + +% patch command that inserts backlink destinations +\pend:defI\Hy@backout{% + % prevent duplicate backlink on the same page + \ifcsname bk##1\thepage\endcsname\else% + % insert link to the page + \html:addr\Link-{}{x\last:haddr}\EndLink% + % save link to the .xref file + \Tag{)Q##1\thepage}{x\last:haddr}% + % we need to save the link destination in .xref file + % too, otherwise \Link command would issue warning + \Tag{)Qx\last:haddr}{\FileNumber}% + \fi + % declare this backlink destination as used, so we don't + % declare another one with the same name + \expandafter\def\csname bk##1\thepage\endcsname{}% +} + +% redefine macro that puts out backlinks +\def\:tempa#1#2#3{% + % test if we saved link to the current bibitem and page + \ifTag{)Q\current:back:desc#1}{% + \Link{\LikeRef{)Q\current:back:desc#1}}{}#1\EndLink% + }% + {#1}% print just page number if there is no saved link +}% +\HLet\backrefxxx\:tempa + +% save current bibkey for use in \backrefxxx +\pend:defI\BR@backref{\def\current:back:desc{##1}} + +\Hinput{backref} +\endinput + |