jvlisting 0.7 (18nov11)

git-svn-id: svn://tug.org/texlive/trunk@24638 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 25 insertions, 11 deletions

diff --git a/Master/texmf-dist/source/latex/jvlisting/jvlisting.dtx b/Master/texmf-dist/source/latex/jvlisting/jvlisting.dtx
index d269491bb57..c1f038906a9 100644
--- a/Master/texmf-dist/source/latex/jvlisting/jvlisting.dtx
+++ b/Master/texmf-dist/source/latex/jvlisting/jvlisting.dtx
@@ -269,9 +269,16 @@ listings with additional line numbers can be defined as follows:
 
 \medbreak
 
-\textbf{Example.}  The following code defines a new
-\verb|copylisting| environment which does not only typeset the source
-code, but also saves a copy in an external file.
+\textbf{Example.}  The following code defines a new \verb|copylisting|
+environment which does not only typeset the source code, but also
+saves a copy in an external file.  Here we need to be careful in case
+the quote character \verb|`| can be present in the listing: by
+default, \verb|\listingfont| makes \verb|`| an active character in
+order to prevent problems with ligatures, but this fix causes damage
+to the output of the \verb|\write| command.  To work around this
+problem, we can use \verb|\DisableLigatureFix| (defined by the
+\verb|jvlisting| package for just this purpose) to temporarily disable
+the ligature fix.
 %    \iffalse
 %</usage>
 %<*examples|usage>
@@ -279,8 +286,8 @@ code, but also saves a copy in an external file.
 
 %    \begin{macrocode}
 \newwrite\outfile
-\newcommand{\copytypeset}[1]{\immediate\write\outfile{#1}%
-  \ListingTypesetLine{#1}}
+\newcommand{\copytypeset}[1]{\ListingTypesetLine{#1}%
+  {\DisableLigatureFix\immediate\write\outfile{#1}}}
 \NewListingEnvironment{copylisting}{1}{\prelistingskip}%
   {\immediate\openout\outfile=#1\listingfont}{\copytypeset}%
   {\immediate\closeout\outfile\postlistingskip}
@@ -391,7 +398,7 @@ string.
 % for the package file.
 %    \begin{macrocode}
 \NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{jvlisting}[2011/10/28 v0.6 Formatted Program Listings]
+\ProvidesPackage{jvlisting}[2011/11/17 v0.7 Formatted Program Listings]
 %    \end{macrocode}
 
 % \subsection{Processing the Lines of Input}
@@ -499,14 +506,12 @@ string.
 % In order to allow for verbatim printing, the macro
 % \verb|jvl@fixparsing| switches off the special meaning of most
 % characters.  Some care is needed to avoid problems with spaces and
-% ligatures like \verb|?`|.
+% hyphenation.
 %    \begin{macrocode}
 {\catcode`\ =\active%
 \gdef\jvl@obeyspaces{\frenchspacing\catcode`\ =\active\let \space}}
-{\catcode`\`=\active\gdef`{\relax\lq}}
-\gdef\jvl@noligs{\catcode`\`=\active}
 \def\jvl@fixparsing{\let\do\@makeother\dospecials\catcode`\^^I=12
-  \jvl@obeyspaces\jvl@noligs\hyphenchar\font\m@ne}
+  \jvl@obeyspaces\hyphenchar\font\m@ne}
 %    \end{macrocode}
 
 % Since the \verb|\hyphenchar| setting is global, we save save the
@@ -595,7 +600,16 @@ string.
 \newcount\prelistingpenalty \prelistingpenalty=100
 \newcount\listingpenalty \listingpenalty=500
 \newcount\postlistingpenalty \postlistingpenalty=-50
-\def\normallistingfont{\normalfont\ttfamily}
+%    \end{macrocode}
+% Finally, we define the default font for use in listings.  Some care
+% is needed to avoid problems with ligatures like \verb|?`|.  We break
+% such ligatures by making \verb|`| and active character.  For use in
+% file listings we also provide \verb|\DisableLigatureFix| to
+% (temporarily) disable this fix.
+%    \begin{macrocode}
+{\catcode`\`=\active\gdef`{\relax\lq}%
+\gdef\DisableLigatureFix{\def`{\lq}}}
+\def\normallistingfont{\normalfont\ttfamily\catcode`\`=\active}
 %    \end{macrocode}
 % \iffalse
 %</package>