texlive[72706] Master/texmf-dist: fvextra (30oct24)
commits+karl at tug.org
commits+karl at tug.org
Wed Oct 30 21:01:36 CET 2024
Revision: 72706
https://tug.org/svn/texlive?view=revision&revision=72706
Author: karl
Date: 2024-10-30 21:01:36 +0100 (Wed, 30 Oct 2024)
Log Message:
-----------
fvextra (30oct24)
Modified Paths:
--------------
trunk/Master/texmf-dist/doc/latex/fvextra/CHANGELOG.md
trunk/Master/texmf-dist/doc/latex/fvextra/fvextra.pdf
trunk/Master/texmf-dist/source/latex/fvextra/fvextra.dtx
trunk/Master/texmf-dist/tex/latex/fvextra/fvextra.sty
Modified: trunk/Master/texmf-dist/doc/latex/fvextra/CHANGELOG.md
===================================================================
--- trunk/Master/texmf-dist/doc/latex/fvextra/CHANGELOG.md 2024-10-30 20:00:04 UTC (rev 72705)
+++ trunk/Master/texmf-dist/doc/latex/fvextra/CHANGELOG.md 2024-10-30 20:01:36 UTC (rev 72706)
@@ -1,6 +1,13 @@
# Changelog
+## v1.9.0 (2024/10/16)
+
+* Replaced buffer length counters with macros to prevent issues with
+ `\includeonly` resetting counters.
+
+
+
## v1.8.0 (2024/09/14)
* Added new option `backgroundcolor` (alias `bgcolor`). This provides a
Modified: trunk/Master/texmf-dist/doc/latex/fvextra/fvextra.pdf
===================================================================
(Binary files differ)
Modified: trunk/Master/texmf-dist/source/latex/fvextra/fvextra.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/fvextra/fvextra.dtx 2024-10-30 20:00:04 UTC (rev 72705)
+++ trunk/Master/texmf-dist/source/latex/fvextra/fvextra.dtx 2024-10-30 20:01:36 UTC (rev 72706)
@@ -26,7 +26,7 @@
%<package>\NeedsTeXFormat{LaTeX2e}[1999/12/01]
%<package>\ProvidesPackage{fvextra}
%<*package>
- [2024/09/14 v1.8.0 fvextra - extensions and patches for fancyvrb]
+ [2024/10/16 v1.9.0 fvextra - extensions and patches for fancyvrb]
%</package>
%
%<*driver>
@@ -819,7 +819,7 @@
%
% Below is an extended example that demonstrates what is possible with |VerbatimBuffer| combined with |\VerbatimInsertBuffer|. This uses |\ifdefstring| from the \pkg{etoolbox} package.
% \begin{itemize}
-% \item |\setformatter| defines an empty |\formatter| macro. Then it loops over the lines in a buffer looking for a line containing only the text ``red''. If this is found, it redefines |\formatter| to |\color{red}|. |FancyVerbBufferIndex| is a counter that is always available for buffer looping. |FancyVerbBufferLength| is the default counter containing the buffer length (number of lines). |\FancyVerbBufferLineName| contains the base name for buffer line macros (default |FancyVerbBufferLine|).
+% \item |\setformatter| defines an empty |\formatter| macro. Then it loops over the lines in a buffer looking for a line containing only the text ``red''. If this is found, it redefines |\formatter| to |\color{red}|. |FancyVerbBufferIndex| is a counter that is always available for buffer looping. |\FancyVerbBufferLength| is the default macro containing the buffer length (number of lines). |\FancyVerbBufferLineName| contains the base name for buffer line macros (default |FancyVerbBufferLine|).
% \item |afterbuffer| involves two steps: (1) |\setformatter| loops through the buffer and defines |\formatter| based on the buffer contents, and (2) |\VerbatimInsertBuffer| typesets the buffer, using |formatcom=\formatter| to format the text based on whether any line contains only the text ``red''.
% \end{itemize}
%
@@ -827,7 +827,7 @@
%\def\setformatter{%
% \def\formatter{}%
% \setcounter{FancyVerbBufferIndex}{1}%
-% \loop\unless\ifnum\value{FancyVerbBufferIndex}>\value{FancyVerbBufferLength}\relax
+% \loop\unless\ifnum\value{FancyVerbBufferIndex}>\FancyVerbBufferLength\relax
% \expandafter\let\expandafter\bufferline
% \csname\FancyVerbBufferLineName\arabic{FancyVerbBufferIndex}\endcsname
% \ifdefstring{\bufferline}{red}{\def\formatter{\color{red}}}{}%
@@ -846,7 +846,7 @@
% Here is the same example, but rewritten to use a global buffer with custom buffer names instead.
%
%\begin{tcblisting}{oversize=5em}
-%\begin{VerbatimBuffer}[globalbuffer, bufferlinename=exbuff, bufferlengthname=exbuff]
+%\begin{VerbatimBuffer}[globalbuffer, bufferlinename=exbuff, bufferlengthname=exbufflen]
%first
%second
%red
@@ -854,7 +854,7 @@
%
%\def\formatter{}
%\setcounter{FancyVerbBufferIndex}{1}
-%\loop\unless\ifnum\value{FancyVerbBufferIndex}>\value{exbuff}\relax
+%\loop\unless\ifnum\value{FancyVerbBufferIndex}>\exbufflen\relax
% \expandafter\let\expandafter\bufferline
% \csname exbuff\arabic{FancyVerbBufferIndex}\endcsname
% \ifdefstring{\bufferline}{red}{\def\formatter{\color{red}}}{}
@@ -864,7 +864,7 @@
%\VerbatimInsertBuffer[
% formatcom=\formatter,
% bufferlinename=exbuff,
-% bufferlengthname=exbuff
+% bufferlengthname=exbufflen
%]
%\end{tcblisting}
%
@@ -874,7 +874,7 @@
%
% \begin{optionlist}
% \item[afterbuffer (macro) (\meta{none})]
-% Macro or macros invoked at the end of the environment, after all lines of the environment have been buffered. This is outside the |\begingroup...\endgroup| that wraps verbatim processing, so \fancyvrb\ settings are no longer active. However, the buffer line macros and the buffer length counter are still accessible.
+% Macro or macros invoked at the end of the environment, after all lines of the environment have been buffered. This is outside the |\begingroup...\endgroup| that wraps verbatim processing, so \fancyvrb\ settings are no longer active. However, the buffer line macros and the buffer length macro are still accessible.
%
% \item[bufferer (macro) (\Verb{\FancyVerbDefaultBufferer})]
% This is the macro that adds lines to the buffer. The default is designed to create a truly verbatim buffer via |\detokenize|. This can be customized if you wish to use \fancyvrb\ options related to catcodes to create a buffer that is only partially verbatim (that contains macros).
@@ -890,7 +890,7 @@
% This macro must be defined globally, so |\xdef| or |\gdef| is necessary (this does not interfere with scoping from |globalbuffer|). Otherwise, there are no restrictions. The |\xdef| and |\detokenize| in the default definition guarantee that the buffer consists only of the literal text from the environment, but this is not required for a custom |bufferer|.
%
% \item[bufferlengthname (string) (FancyVerbBufferLength)]
-% Name of the counter (|\newcounter|) storing the length of the buffer. This is the number of lines stored.
+% Name of the macro storing the length of the buffer. This is the number of lines stored.
%
% \item[bufferlinename (string) (FancyVerbBufferLine)]
% The base name of the buffer line macros. The default is |FancyVerbBufferLine|, which will result in buffer macros |\FancyVerbBufferLine<n>| with integer |n| greater than or equal to one and less than or equal to the number of lines (one-based indexing). Since buffer macro names contain a number, they must be accessed differently than typical macros:
@@ -904,11 +904,11 @@
% Shortcut for setting |bufferlengthname| and |bufferlinename| simultaneously, using the same root name. This sets |bufferlengthname| to |<buffername>length| and |bufferlinename| to |<buffername>line|.
%
% \item[globalbuffer (bool) (false)]
-% This determines whether buffer line macros are defined globally, that is, whether they are accessible after the end of the |VerbatimBuffer| environment. If the line macros are defined globally, then the buffer length counter is also increased appropriately outside the environment. |globalbuffer| does not affect any |afterbuffer| macro, since that is invoked inside the environment.
+% This determines whether buffer line macros are defined globally, that is, whether they are accessible after the end of the |VerbatimBuffer| environment. If the line macros are defined globally, then the buffer length macro is also increased appropriately outside the environment. |globalbuffer| does not affect any |afterbuffer| macro, since that is invoked inside the environment.
%
% When buffered lines are used immediately, consider using |afterbuffer| instead of |globalbuffer|. When buffered lines must be used later in a document, consider using |globalbuffer| with custom (and perhaps unique) |bufferlinename| and |bufferlengthname|.
%
-% When |globalbuffer=true|, |VerbatimBuffer| environments with the same buffer name will append to a single buffer, so that it ultimately contains the concatenated contents of all environments. A |VerbatimBuffer| environment with |globalbuffer=false| will append to the buffer created by any previous |VerbatimBuffer| that had |globalbuffer=true| and shared the same buffer name. Any |afterbuffer| macro will have access to a buffer containing the concatenated data. At the very end of the environment with |globalbuffer=false|, after any |afterbuffer|, this appended content will be removed. All buffer line macros (from |bufferlinename|) that were created by that environment are ``deleted'' (|\let| to an undefined macro), and the buffer length counter (from |bufferlengthname|) is reduced proportionally.
+% When |globalbuffer=true|, |VerbatimBuffer| environments with the same buffer name will append to a single buffer, so that it ultimately contains the concatenated contents of all environments. A |VerbatimBuffer| environment with |globalbuffer=false| will append to the buffer created by any previous |VerbatimBuffer| that had |globalbuffer=true| and shared the same buffer name. Any |afterbuffer| macro will have access to a buffer containing the concatenated data. At the very end of the environment with |globalbuffer=false|, after any |afterbuffer|, this appended content will be removed. All buffer line macros (from |bufferlinename|) that were created by that environment are ``deleted'' (|\let| to an undefined macro), and the buffer length macro (from |bufferlengthname|) is reduced proportionally.
% \end{optionlist}
%
%
@@ -933,7 +933,7 @@
% \subsection{\cmd{\VerbatimClearBuffer}}
% \DescribeMacro{\VerbatimClearBuffer\oarg{options}}
%
-% Clear an existing buffer created with \cmd{VerbatimBuffer}. |\global\let| all buffer line macros to an undefined macro and set the buffer length counter to zero.
+% Clear an existing buffer created with \cmd{VerbatimBuffer}. |\global\let| all buffer line macros to an undefined macro and set the buffer length macro to zero.
%
%
%
@@ -4043,7 +4043,7 @@
% \end{macro}
%
% \begin{macro}{FancyVerbBufferIndex}
-% Current index in buffer during buffering. This is given a |\FancyVerb*| macro name since it may be accessed by the user in defining custom |bufferer|.
+% Current index in buffer during buffering. This is given a |FancyVerb*| macro name since it may be accessed by the user in defining custom |bufferer|.
% \begin{macrocode}
\newcounter{FancyVerbBufferIndex}
% \end{macrocode}
@@ -4062,14 +4062,16 @@
% \end{macro}
%
% \begin{macro}{bufferlengthname, \FV at bufferlengthname}
-% Name of counter storing the length of the buffer.
+% Name of macro storing the length of the buffer.
% \begin{macrocode}
\define at key{FV}{bufferlengthname}{%
- \ifcsname c@#1\endcsname
+ \ifcsname#1\endcsname
\else
- \newcounter{#1}%
+ \expandafter\xdef\csname#1\endcsname{0}%
\fi
- \def\FV at bufferlengthname{#1}}
+ \def\FV at bufferlengthname{#1}%
+ \expandafter\def\expandafter\FV at bufferlengthmacro\expandafter{%
+ \csname#1\endcsname}}
\fvset{bufferlengthname=FancyVerbBufferLength}
% \end{macrocode}
% \end{macro}
@@ -4092,7 +4094,7 @@
% \end{macro}
%
% \begin{macro}{globalbuffer, FV at globalbuffer}
-% Whether buffer macros and the buffer length counter are defined globally.
+% Whether buffer line macros and the buffer length macro are defined globally.
% \begin{macrocode}
\newbool{FV at globalbuffer}
\define at booleankey{FV}{globalbuffer}%
@@ -4109,9 +4111,9 @@
% A special buffer counter is used to track line numbers while avoiding incrementing the regular counter that is used for typeset code. Some macros do nothing with the default |bufferer|, but are needed to enable \fancyvrb\ options when a custom |bufferer| is used in conjunction with optional environment arguments. These include |\FancyVerbDefineActive| and |\FancyVerbFormatCom|. Since counters are global, the exact location of the |\setcounter| commands at the end of the environment relative to |\begingroup...\endgroup| is not important.
% \begin{macrocode}
\newcounter{FancyVerbBufferLine}
-\newcounter{FV at oldbufferlength}
\newbool{FV at globalbuffer@tmp}
-\let\FV at bufferlengthname@tmp\relax
+\let\FV at oldbufferlength\relax
+\let\FV at bufferlengthmacro@tmp\relax
\let\FancyVerbBufferLineName at tmp\relax
\let\FV at afterbuffer@tmp\relax
\def\VerbatimBuffer{%
@@ -4123,17 +4125,14 @@
\@bsphack
\begingroup
\FV at UseKeyValues
- \setcounter{FancyVerbBufferLine}%
- {\expandafter\value\expandafter{\FV at bufferlengthname}}%
+ \setcounter{FancyVerbBufferLine}{\FV at bufferlengthmacro}%
\let\c at FancyVerbLine\c at FancyVerbBufferLine
- \setcounter{FancyVerbBufferIndex}%
- {\expandafter\value\expandafter{\FV at bufferlengthname}}%
+ \setcounter{FancyVerbBufferIndex}{\FV at bufferlengthmacro}%
\ifbool{FV at globalbuffer}%
{\global\booltrue{FV at globalbuffer@tmp}}%
{\global\boolfalse{FV at globalbuffer@tmp}%
- \setcounter{FV at oldbufferlength}%
- {\expandafter\value\expandafter{\FV at bufferlengthname}}%
- \global\let\FV at bufferlengthname@tmp\FV at bufferlengthname
+ \expandafter\global\expandafter\let\expandafter\FV at oldbufferlength\FV at bufferlengthmacro
+ \global\let\FV at bufferlengthmacro@tmp\FV at bufferlengthmacro
\global\let\FancyVerbBufferLineName at tmp\FancyVerbBufferLineName}%
\global\let\FV at afterbuffer@tmp\FV at afterbuffer
\FV at DefineWhiteSpace
@@ -4144,8 +4143,7 @@
\FancyVerbFormatCom
\FV at Scan}
\def\FVE at VerbatimBuffer{%
- \expandafter\setcounter\expandafter{\FV at bufferlengthname}%
- {\value{FancyVerbBufferIndex}}%
+ \expandafter\xdef\FV at bufferlengthmacro{\theFancyVerbBufferIndex}%
\setcounter{FancyVerbBufferIndex}{0}%
\endgroup
\@esphack
@@ -4155,16 +4153,16 @@
\endgroup
\ifbool{FV at globalbuffer@tmp}%
{}%
- {\loop\unless\ifnum\expandafter\value\expandafter{\FV at bufferlengthname@tmp}=
- \value{FV at oldbufferlength}\relax
+ {\loop\unless\ifnum\FV at bufferlengthmacro@tmp=\FV at oldbufferlength\relax
\expandafter\global\expandafter\let\csname
- \FancyVerbBufferLineName at tmp
- \expandafter\arabic\expandafter{\FV at bufferlengthname@tmp}%
+ \FancyVerbBufferLineName at tmp\FV at bufferlengthmacro@tmp
\endcsname\FV at Undefined
- \expandafter\addtocounter\expandafter{\FV at bufferlengthname@tmp}{-1}%
+ \expandafter\xdef\FV at bufferlengthmacro@tmp{%
+ \the\numexpr\FV at bufferlengthmacro@tmp-1\relax}%
\repeat
- \global\let\FV at bufferlengthname@tmp\relax
- \global\let\FancyVerbBufferLineName at tmp\relax}}
+ \global\let\FV at bufferlengthmacro@tmp\relax
+ \global\let\FancyVerbBufferLineName at tmp\relax}%
+ \global\let\FV at oldbufferlength\relax}
\def\endVerbatimBuffer{\FVE at VerbatimBuffer}
% \end{macrocode}
% \end{macro}
@@ -4190,9 +4188,9 @@
\def\FV at Scan@InsertBuffer{%
\FV at CatCodes
\xdef\FV at EnvironName{\FV at VerbatimInsertEnvName}%
- \ifnum\expandafter\value\expandafter{\FV at bufferlengthname}=\z@\relax
+ \ifnum\FV at bufferlengthmacro=\z@\relax
\PackageError{fvextra}%
- {Buffer length counter \FV at bufferlengthname\space is invalid or zero}%
+ {Buffer length macro \expandafter\string\FV at bufferlengthmacro\space is invalid or zero}%
{}%
\let\FV at GetLine\relax
\fi
@@ -4200,8 +4198,7 @@
\def\VerbatimInsertBuffer at def@FV at Line#1{%
\FVExtraRetokenizeVArg{\def\FV at Line}{}{#1}}
\def\FancyVerbGetLine at VerbatimInsertBuffer{%
- \ifnum\value{FancyVerbBufferIndex}>%
- \expandafter\value\expandafter{\FV at bufferlengthname}\relax
+ \ifnum\value{FancyVerbBufferIndex}>\FV at bufferlengthmacro\relax
\global\let\FV at EnvironName\relax
\let\next\relax
\else
@@ -4255,9 +4252,8 @@
\begingroup
\def\FV at KeyValues{#1}%
\FV at UseKeyValues
- \setcounter{FancyVerbBufferIndex}%
- {\expandafter\value\expandafter{\FV at bufferlengthname}}%
- \expandafter\setcounter\expandafter{\FV at bufferlengthname}{0}%
+ \setcounter{FancyVerbBufferIndex}{\FV at bufferlengthmacro}%
+ \expandafter\xdef\FV at bufferlengthmacro{0}%
\loop\unless\ifnum\value{FancyVerbBufferIndex}<1\relax
\expandafter\global\expandafter\let
\csname\FancyVerbBufferLineName\arabic{FancyVerbBufferIndex}\endcsname
Modified: trunk/Master/texmf-dist/tex/latex/fvextra/fvextra.sty
===================================================================
--- trunk/Master/texmf-dist/tex/latex/fvextra/fvextra.sty 2024-10-30 20:00:04 UTC (rev 72705)
+++ trunk/Master/texmf-dist/tex/latex/fvextra/fvextra.sty 2024-10-30 20:01:36 UTC (rev 72706)
@@ -20,7 +20,7 @@
%%
\NeedsTeXFormat{LaTeX2e}[1999/12/01]
\ProvidesPackage{fvextra}
- [2024/09/14 v1.8.0 fvextra - extensions and patches for fancyvrb]
+ [2024/10/16 v1.9.0 fvextra - extensions and patches for fancyvrb]
\RequirePackage{etoolbox}
\RequirePackage{fancyvrb}
\RequirePackage{upquote}
@@ -1280,11 +1280,13 @@
\detokenize{#1}}}
\fvset{bufferer=\FancyVerbDefaultBufferer}
\define at key{FV}{bufferlengthname}{%
- \ifcsname c@#1\endcsname
+ \ifcsname#1\endcsname
\else
- \newcounter{#1}%
+ \expandafter\xdef\csname#1\endcsname{0}%
\fi
- \def\FV at bufferlengthname{#1}}
+ \def\FV at bufferlengthname{#1}%
+ \expandafter\def\expandafter\FV at bufferlengthmacro\expandafter{%
+ \csname#1\endcsname}}
\fvset{bufferlengthname=FancyVerbBufferLength}
\define at key{FV}{bufferlinename}{%
\def\FancyVerbBufferLineName{#1}}
@@ -1297,9 +1299,9 @@
{\boolfalse{FV at globalbuffer}}
\fvset{globalbuffer=false}
\newcounter{FancyVerbBufferLine}
-\newcounter{FV at oldbufferlength}
\newbool{FV at globalbuffer@tmp}
-\let\FV at bufferlengthname@tmp\relax
+\let\FV at oldbufferlength\relax
+\let\FV at bufferlengthmacro@tmp\relax
\let\FancyVerbBufferLineName at tmp\relax
\let\FV at afterbuffer@tmp\relax
\def\VerbatimBuffer{%
@@ -1311,17 +1313,14 @@
\@bsphack
\begingroup
\FV at UseKeyValues
- \setcounter{FancyVerbBufferLine}%
- {\expandafter\value\expandafter{\FV at bufferlengthname}}%
+ \setcounter{FancyVerbBufferLine}{\FV at bufferlengthmacro}%
\let\c at FancyVerbLine\c at FancyVerbBufferLine
- \setcounter{FancyVerbBufferIndex}%
- {\expandafter\value\expandafter{\FV at bufferlengthname}}%
+ \setcounter{FancyVerbBufferIndex}{\FV at bufferlengthmacro}%
\ifbool{FV at globalbuffer}%
{\global\booltrue{FV at globalbuffer@tmp}}%
{\global\boolfalse{FV at globalbuffer@tmp}%
- \setcounter{FV at oldbufferlength}%
- {\expandafter\value\expandafter{\FV at bufferlengthname}}%
- \global\let\FV at bufferlengthname@tmp\FV at bufferlengthname
+ \expandafter\global\expandafter\let\expandafter\FV at oldbufferlength\FV at bufferlengthmacro
+ \global\let\FV at bufferlengthmacro@tmp\FV at bufferlengthmacro
\global\let\FancyVerbBufferLineName at tmp\FancyVerbBufferLineName}%
\global\let\FV at afterbuffer@tmp\FV at afterbuffer
\FV at DefineWhiteSpace
@@ -1332,8 +1331,7 @@
\FancyVerbFormatCom
\FV at Scan}
\def\FVE at VerbatimBuffer{%
- \expandafter\setcounter\expandafter{\FV at bufferlengthname}%
- {\value{FancyVerbBufferIndex}}%
+ \expandafter\xdef\FV at bufferlengthmacro{\theFancyVerbBufferIndex}%
\setcounter{FancyVerbBufferIndex}{0}%
\endgroup
\@esphack
@@ -1343,16 +1341,16 @@
\endgroup
\ifbool{FV at globalbuffer@tmp}%
{}%
- {\loop\unless\ifnum\expandafter\value\expandafter{\FV at bufferlengthname@tmp}=
- \value{FV at oldbufferlength}\relax
+ {\loop\unless\ifnum\FV at bufferlengthmacro@tmp=\FV at oldbufferlength\relax
\expandafter\global\expandafter\let\csname
- \FancyVerbBufferLineName at tmp
- \expandafter\arabic\expandafter{\FV at bufferlengthname@tmp}%
+ \FancyVerbBufferLineName at tmp\FV at bufferlengthmacro@tmp
\endcsname\FV at Undefined
- \expandafter\addtocounter\expandafter{\FV at bufferlengthname@tmp}{-1}%
+ \expandafter\xdef\FV at bufferlengthmacro@tmp{%
+ \the\numexpr\FV at bufferlengthmacro@tmp-1\relax}%
\repeat
- \global\let\FV at bufferlengthname@tmp\relax
- \global\let\FancyVerbBufferLineName at tmp\relax}}
+ \global\let\FV at bufferlengthmacro@tmp\relax
+ \global\let\FancyVerbBufferLineName at tmp\relax}%
+ \global\let\FV at oldbufferlength\relax}
\def\endVerbatimBuffer{\FVE at VerbatimBuffer}
\define at key{FV}{insertenvname}{%
\def\FV at VerbatimInsertEnvName{#1}}
@@ -1363,9 +1361,9 @@
\def\FV at Scan@InsertBuffer{%
\FV at CatCodes
\xdef\FV at EnvironName{\FV at VerbatimInsertEnvName}%
- \ifnum\expandafter\value\expandafter{\FV at bufferlengthname}=\z@\relax
+ \ifnum\FV at bufferlengthmacro=\z@\relax
\PackageError{fvextra}%
- {Buffer length counter \FV at bufferlengthname\space is invalid or zero}%
+ {Buffer length macro \expandafter\string\FV at bufferlengthmacro\space is invalid or zero}%
{}%
\let\FV at GetLine\relax
\fi
@@ -1373,8 +1371,7 @@
\def\VerbatimInsertBuffer at def@FV at Line#1{%
\FVExtraRetokenizeVArg{\def\FV at Line}{}{#1}}
\def\FancyVerbGetLine at VerbatimInsertBuffer{%
- \ifnum\value{FancyVerbBufferIndex}>%
- \expandafter\value\expandafter{\FV at bufferlengthname}\relax
+ \ifnum\value{FancyVerbBufferIndex}>\FV at bufferlengthmacro\relax
\global\let\FV at EnvironName\relax
\let\next\relax
\else
@@ -1420,9 +1417,8 @@
\begingroup
\def\FV at KeyValues{#1}%
\FV at UseKeyValues
- \setcounter{FancyVerbBufferIndex}%
- {\expandafter\value\expandafter{\FV at bufferlengthname}}%
- \expandafter\setcounter\expandafter{\FV at bufferlengthname}{0}%
+ \setcounter{FancyVerbBufferIndex}{\FV at bufferlengthmacro}%
+ \expandafter\xdef\FV at bufferlengthmacro{0}%
\loop\unless\ifnum\value{FancyVerbBufferIndex}<1\relax
\expandafter\global\expandafter\let
\csname\FancyVerbBufferLineName\arabic{FancyVerbBufferIndex}\endcsname
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