diff options
Diffstat (limited to 'Master/texmf-dist/tex/generic/pgf/frontendlayer/tikz/libraries/tikzexternalshared.code.tex')
-rw-r--r-- | Master/texmf-dist/tex/generic/pgf/frontendlayer/tikz/libraries/tikzexternalshared.code.tex | 1394 |
1 files changed, 1394 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/generic/pgf/frontendlayer/tikz/libraries/tikzexternalshared.code.tex b/Master/texmf-dist/tex/generic/pgf/frontendlayer/tikz/libraries/tikzexternalshared.code.tex new file mode 100644 index 00000000000..8c22215eda4 --- /dev/null +++ b/Master/texmf-dist/tex/generic/pgf/frontendlayer/tikz/libraries/tikzexternalshared.code.tex @@ -0,0 +1,1394 @@ +% Copyright 2008-2010 by Christian Feuersaenger +% +% This file may be distributed and/or modified +% +% 1. under the LaTeX Project Public License and/or +% 2. under the GNU Public License. +% +% See the file doc/generic/pgf/licenses/LICENSE for more details. +% +% ****************************** +% This here is the shared implementation of TeX-dialect specific files +% tikzlibraryexternal.code.tex +% ****************************** +% +% +% This file provides a high-level automatic export feature for tikz pictures. +% It allows to export EACH SINGLE FIGURE into a separate PDF. +% +% The simplest way is to use the 'convert with system call' option; it simply converts every figure using the write18 method. If that is not possible, a list of figure file names is generated and you need to generate these figures manually (or with a script). +% +% +% It replaces \tikzpicture/ \endtikzpicture and \tikz and invokes \beginpgfgraphicnamed ... \endpgfgraphicnamed +% commands if necessary. + +% handle with extreme care and only in small, local groups: +\toksdef\t@tikzexternal@tmpa=0 +\toksdef\t@tikzexternal@tmpb=1 + +\newwrite\tikzexternal@outfile +\newif\iftikzexternal@nestedflag +\newif\iftikzexternal@verboseio +\newif\iftikzexternal@genfigurelist +\newif\iftikzexternal@onlynamed +\newif\iftikzexternal@file@isuptodate +\newif\iftikzexternal@force@remake +\newif\iftikzexternal@optimize +\newif\iftikzexternal@export@enabled +\tikzexternal@export@enabledtrue + +% This 'if' can be used as part of the public user interface. +% +% It is set by the 'remake next' key. +% +% It disables any up-to-date checks for the *next* picture, forcing a +% remake of it. +% +% It applies only to *one* picture. +\newif\iftikzexternalremakenext +\newif\iftikzexternal@verbose@optimize +\tikzexternal@verbose@optimizetrue + +% A global boolean which can be used to skip single figures. +\newif\iftikzexternalexportnext +\tikzexternalexportnexttrue + +% Invokes '#1' if the external lib is currently externalizing +% something and '#2' if not. +% +% This command must be called *after* \tikzexternalize. +\def\tikzifexternalizing#1#2{% + \ifpgf@external@grabshipout #1\else #2\fi +}% +% Invokes '#1' if the external lib is currently externalizing the NEXT FOLLOWING +% tikzpicture. It invokes '#2' if that is not the case. +\def\tikzifexternalizingnext#1#2{% + \ifpgf@external@grabshipout + \tikzexternalgetnextfilename\tikzexternal@temp + \tikzifexternaljobnamematches\tikzexternal@temp{#1}{#2}% + \else + #2% + \fi +}% +% Invokes '#1' if the external lib is currently externalizing the +% current picture. It invokes '#2' if that is not the case. +% +% If the command is invoked outside of a picture, '#2' will be +% invoked. +\def\tikzifexternalizingcurrent#1#2{% + \ifpgf@external@grabshipout + \tikzexternalgetcurrentfilename\tikzexternal@temp + \ifx\tikzexternal@temp\pgfutil@empty + #2% + \else + \tikzifexternaljobnamematches\tikzexternal@temp{#1}{#2}% + \fi + \else + #2% + \fi +}% + +% Invokes '#2' if \jobname equals '#1' and '#3' if not. +% I suppose that '#1' is a macro containing the file name. +% +\def\tikzifexternaljobnamematches#1#2#3{% + \edef\pgf@tempa{\expandafter\string\csname#1\endcsname}% + \edef\pgf@tempb{\expandafter\string\csname\pgfactualjobname\endcsname}% + \ifx\pgf@tempa\pgf@tempb #2\else#3 \fi% +}% + + +\pgfutil@ifundefined{pdfshellescape}{% + \def\tikzexternalcheckshellescape{}% +}{% + \ifnum\pdfshellescape=1 + \def\tikzexternalcheckshellescape{\pgfkeysvalueof{/tikz/external/shell escape}\space}% + \else + \def\tikzexternalcheckshellescape{}% + \fi +}% +\newif\iftikzexternal@auto@detect@jobname + +\pgfqkeys{/tikz/external}{ + figure list/.is if=tikzexternal@genfigurelist, + aux in dpth/.style={/pgf/images/aux in dpth=#1},% + % 'mode' applies only if \jobname==real job name. + mode/.is choice, + mode/only graphics/.code = {% + \def\tikzexternal@opmode{0}% + \pgfkeysalso{/pgf/images/aux in dpth=true}% + }, + mode/no graphics/.code = {\def\tikzexternal@opmode{1}}, + % an alias for 'no graphics:' + mode/only pictures/.code = {\def\tikzexternal@opmode{1}}, + mode/graphics if exists/.code= {% + \def\tikzexternal@opmode{2}% + \pgfkeysalso{/pgf/images/aux in dpth=true}% + }, + mode/list only/.code = {\def\tikzexternal@opmode{3}\tikzexternal@genfigurelisttrue}, + mode/convert with system call/.code={% + \def\tikzexternal@opmode{4}% + \pgfkeysalso{/tikz/external/figure list=false,/pgf/images/aux in dpth=true}% ATTENTION: this *can't* work if \label{} contains pictures! + }, + mode/list and make/.code = {% + \def\tikzexternal@opmode{5}% + \pgfkeysalso{/tikz/external/figure list=true,/pgf/images/aux in dpth=true}% + }, + mode=convert with system call, + system call/.initial={pdflatex \tikzexternalcheckshellescape -halt-on-error -interaction=batchmode -jobname "\image" "\texsource"}, +% system call/.initial={pdflatex -interaction=batchmode -jobname '\image' '\texsource'; pdftops -eps \image.pdf}, + force remake/.is if=tikzexternal@force@remake, + force remake/.default=true, + failed ref warnings for/.initial={\ref,\cite,\pageref}, + export next/.is if=tikzexternalexportnext, + export/.is if=tikzexternal@export@enabled, + remake next/.is if=tikzexternalremakenext, + remake next/.default=true, + verbose IO/.is if=tikzexternal@verboseio, + verbose IO/.default=true, + verbose IO=true, + verbose optimize/.is if=tikzexternal@verbose@optimize, + verbose/.style={ + verbose IO=#1, + verbose optimize=#1, + }, + shell escape/.initial=-shell-escape, + read main aux/.is if=pgfexternalreadmainaux, + image discarded text/.initial={% + [[ \textsc{Image Discarded Due To} \texttt{`/tikz/external/% + \ifcase\tikzexternal@opmode\relax + mode=only graphics% + \or + mode=no graphics% + \or + mode=graphics if exists% + \or + mode=list only% + \or + mode=convert with system call% + \or + mode=list and make% + \fi + '}~]]% + \pgfutil@ifundefined{tikzexternal@warning@at@end}{% + \pgfutil@ifundefined{AtEndDocument}{}{% + \AtEndDocument{% + \message{! Package tikz Warning: Some images are not up-to-date and need to be generated. }% + }% + }% + \gdef\tikzexternal@warning@at@end{1}% + }{}% + }, + optimize/.is choice, + optimize/true/.code={% + \tikzexternal@optimizetrue + \iftikzexternal@optimize + \ifpgf@external@grabshipout + % we have already started the externalization! Install + % optimization commands to activate the new one: + \tikzexternal@optimize@REPLACE + \fi + \fi + }, + optimize/false/.code={% + \tikzexternal@optimizefalse% + \tikzexternal@optimize@RESTORE + },% + optimize=true, + optimize away text/.code={[ \textsc{\string#1\ optimized away because it does not contribute to exported PDF}]}, + optimize/install/.code={},% + optimize/restore/.code={},% + % Expects two arguments, the command name and (optionally) a count + % of expected arguments. + % Example: + % 'optimize command away=\includegraphics' + % 'optimize command away={\mycommand}{3}' + % + % It accepts commands which have '[]' arguments and whose first + % argument always begins with '{'. + % + % #1: the command name + % #2: either empty or a number of EXPECTED arguments. It will be checked + % for one optional argument in square brackets as well. + optimize command away/.code 2 args={% + \expandafter\global\expandafter\let\csname\string#1@ORIG\endcsname=#1% + \pgfkeysalso{% + /tikz/external/optimize/install/.append code={% + \def#1{\tikzexternal@optimize@away@cmd{#1}{#2}}% + }, + /tikz/external/optimize/restore/.append code={% + \expandafter\let\expandafter#1\csname\string#1@ORIG\endcsname + } + }% + \iftikzexternal@optimize + \ifpgf@external@grabshipout + % we have already started the externalization! Install + % optimization commands to activate the new one: + \tikzexternal@optimize@REPLACE + \fi + \fi + }, + optimize command away=\includegraphics, + % EXPERIMENTAL (UNTESTED): + optimize latex env away/.code={% + \expandafter\let\expandafter\pgf@tempa\csname #1\endcsname + \expandafter\global\expandafter\let\csname #1@ORIG\endcsname=\pgf@tempa% + \pgfkeysalso{% + /tikz/external/optimize/install/.append code={% + \pgfutil@namedef{#1}{\tikzexternal@optimize@away@latex@env{#1}}% + }, + /tikz/external/optimize/restore/.append code={% + \pgfutil@namelet{#1}{#1@ORIG}% + }% + }% + }, + only named/.is if=tikzexternal@onlynamed, + only named/.default=true, + figure name/.initial=\tikzexternal@realjob-figure, + reset counter/.code={% + \expandafter\gdef\csname c@tikzext@no@#1\endcsname{0}% + },% + prefix/.code={\tikzsetexternalprefix{#1}}, +} + +\def\tikzsetfigurename#1{\pgfkeyssetvalue{/tikz/external/figure name}{#1}}% +\def\tikzappendtofigurename#1{\pgfkeys{/tikz/external/figure name/.add={}{#1}}} + +% This method sets the file name prefix used for every import/export. +% +% It is invoked by the '/tikz/external/prefix' key. +\def\tikzsetexternalprefix#1{\def\tikzexternal@filenameprefix{#1}} +\tikzsetexternalprefix{} + +% This method initialises automatic externalization. +% +% The command does need any argument, but it has two optional ones: +% +% 1. \tikzexternalize[<options>] +% +% 2. \tikzexternalize{<real job's name>} +% +% 3. \tikzexternalize[<options>]{<real job's name>} +% +% The <real job's name> is the job's file name, without the suffix +% .tex . +% If the <real job's name> is omitted, it will be deduced +% automatically. +% +% The effect is: +% 1. automatically surround EVERY tikzpicture by \beginpgfgraphicnamed % sections. +% 2. in case that the job's real name and the current \jobname differ, +% it will process ONLY the matching tikzpicture. +\def\tikzexternalize{% + \pgfutil@ifnextchar[{% + \tikzexternalize@opt + }{% + \tikzexternalize@opt[]% + }% +}% +\def\tikzexternalize@opt[#1]{% + \pgfutil@ifnextchar\bgroup{% + \tikzexternal@auto@detect@jobnamefalse + \tikzexternalize@opt@withname[#1]% + }{% + \tikzexternal@auto@detect@jobnametrue + \pgfutil@ifundefined{tikzexternalrealjob}{% + % ok, \tikzexternalrealjob is not known. + % Assume we are currently *not* externalizing. + \let\tikzexternalrealjob=\jobname + }{}% + \def\pgf@tempa{\tikzexternalize@opt@withname[#1]}% + \expandafter\pgf@tempa\expandafter{\tikzexternalrealjob}% + }% +}% +\def\tikzexternalize@opt@withname[#1]#2{% + \gdef\tikzexternalrealjob{#2}% + \if1\tikzexternalize@hasbeencalled + \else + \pgfqkeys{/tikz/external}{#1}% + \def\tikzexternal@realjob{#2}% + \tikzexternalauxlock@init + \pgfrealjobname{#2}% + \def\tikzexternalize@hasbeencalled{1}% + \tikzexternalenable + \def\tikzexternal@determineimgextension##1:##2\relax{\gdef\tikzexternalimgextension{##1}}% + \xdef\pgf@tempa{\pgfsys@imagesuffixlist}% + \expandafter\tikzexternal@determineimgextension\pgf@tempa:\relax + \pgfutil@ifundefined{includegraphics}{% + \let\tikzexternal@orig@includegraphics=\relax + }{% + \let\tikzexternal@orig@includegraphics=\includegraphics + }% + \let\tikzexternalfiledependsonfile=\tikzexternalfiledependsonfile@ACTIVE + \let\tikzpicturedependsonfile=\tikzpicturedependsonfile@ACTIVE + \fi +} +\def\tikzexternalize@hasbeencalled{0}% + +% If mode=`convert with system call', the boolean \ifpgfexternalreadmainaux +% will be set depending on the current lock file. +% +% The idea is as follows: Suppose +% pdflatex -shell-escape mainjob.tex +% is running. +% +% While it runs, +% a) it modifies its mainjob.aux file, +% b) it issues pdflatex -jobname mainjob-figure0 mainjob.tex . +% +% The call (b) will try to read mainjob.aux in order to resolve \ref +% commands. This may fail since the aux +% file is not complete; it may be subject to output buffering. To +% avoid such failure, a locking mechanism is established. +% +% The locking mechanisms causes (a) to write a lock command into +% mainjob.auxlock +% just before (b) is called. Then, (b) will check it. After (b) has +% completed, the lock will be reset. +% +% Thus: mode=convert with system call does NOT support \ref commands +% inside of images. You will need to call the externalization command +% manually. In this case, it should work. +% +% The lock file allows to detect automatically whether an image is created by +% 'convert with system call' or if the user issued the required command manually. +% +% @PRECONDITION : this command must be invoked AFTER +% \tikzexternal@realjob has been defined but BEFORE \pgfrealjobname is +% called. +% +% @POSTCONDITION : If \ifpgfexternalreadmainaux=\iffalse, we won't do +% anything. Otherwise, it will be changed depending for 'mode=convert +% with system call' if necessary. +\def\tikzexternalauxlock@init{% + \if4\tikzexternal@opmode + % mode=convert with system call + \ifpgfexternalreadmainaux + % ohoh. This case needs care because the main.aux might + % not be ready at this time! + % check. + % + \edef\pgf@tempa{\expandafter\string\csname\tikzexternal@realjob\endcsname}% + \edef\pgf@tempb{\expandafter\string\csname\jobname\endcsname}% + \ifx\pgf@tempa\pgf@tempb + % we are *not* externalizing. Set lock into its + % initial "unlocked" state. + \tikzexternalauxlock@setlock{0}% + \else + % we are externalizing. Query the lock's value: + \tikzexternalauxlock@getlockvalue + \if1\tikzexternallocked + \pgfexternalreadmainauxfalse + % the main .aux file won't be read. Handle \ref commands: + \tikzexternalauxlock@handleref + \else + \pgfexternalreadmainauxtrue + \fi + \fi + \else + % NO-OP. We won't read the main aux file anyway. + \def\tikzexternalauxlock@setlock##1{}% + \fi + \fi +} +% defines \tikzexternallocked to be either 0 or 1, depending on the +% lock file. +\def\tikzexternalauxlock@getlockvalue{% + \openin\r@pgf@reada=\tikzexternal@realjob.auxlock + \ifeof\r@pgf@reada + % no lock file. Unlock. + \def\tikzexternallocked{0}% + \else + % read first line... + \read\r@pgf@reada to\pgf@tempa + % ... and execute it. + \pgf@tempa + % it should contain a definition of \tikzexternallocked. If + % not, lock it anyway. + \pgfutil@ifundefined + {tikzexternallocked} + {\def\tikzexternallocked{1}}% + {}% + \fi + \closein\r@pgf@reada +}% +\def\tikzexternalauxlock@setlock#1{% + \immediate\openout\w@pgf@writea=\tikzexternal@realjob.auxlock + \immediate\write\w@pgf@writea{\noexpand\def\noexpand\tikzexternallocked{#1}}% + \immediate\closeout\w@pgf@writea +} + + +% Installs a special \ref{} command such that externalized pictures +% can use \ref and the user gets a warning if something fails. +% +% The special \ref handling is installed for every reference command +% in the list '/tikz/external/failed ref warnings for' which contains +% '\ref,\pageref,\cite'. +% +% For use in the aux lock handling only. +\def\tikzexternalauxlock@handleref{% + \let\pgf@external@grab@refundefinedtrue=\pgf@external@grab@refundefinedtrue@orig + % + \pgfkeysgetvalue{/tikz/external/failed ref warnings for}\tikzexternal@temp + \expandafter\tikzexternalauxlock@handleref@loop\tikzexternal@temp,\@EOI,% +} +\def\tikzexternalauxlock@handleref@loop#1,{% + \def\tikzexternal@temp{#1}% + \ifx\tikzexternal@temp\pgfutil@empty + \expandafter\tikzexternalauxlock@handleref@loop + \else + \ifx#1\@EOI + \else + {% + % strip the leading '\' + % this allows proper \protect ion when you write + % \caption{...\cite{..}} and #1=\cite + \escapechar=-1 + \xdef\pgf@temp{\string#1}% + }% + \expandafter\let\csname tikzexternalauxlock@handleref@orig@\pgf@temp\endcsname=#1% + \edef#1{\noexpand\pgf@texdist@protect\noexpand\tikzexternalauxlock@handleref@repl{\pgf@temp}}% + \expandafter\expandafter\expandafter\tikzexternalauxlock@handleref@loop + \fi + \fi +}% +\def\tikzexternalauxlock@handleref@repl#1{\pgfutil@ifnextchar[{\tikzexternalauxlock@handleref@repl@{#1}}{\tikzexternalauxlock@handleref@repl@{#1}[]}}% +\def\tikzexternalauxlock@handleref@repl@#1[#2]#3{% + \tikzifexternalizingcurrent{% + % note that '#1' is NO control sequence! it is a protected string + \csname tikzexternalauxlock@handleref@orig@#1\endcsname{#3}% + \begingroup + \def\n{\pgfexternal@hat\pgfexternal@hat J}% + \tikzexternal@assemble@systemcall{\pgfactualjobname}{\pgf@tempa}% + \def\space{\noexpand\space}% + \pgfexternalstorecommand{% + \noexpand\begingroup + \noexpand\toks0={\pgf@tempa}% + \noexpand\immediate\noexpand\write16{\tikzexternalauxlock@handleref@warning{#3}{\noexpand\the\noexpand\toks0}}% + \noexpand\G@refundefinedtrue + \noexpand\endgroup + }% + \endgroup + }{% + % ok. We are not externalizing this part of the document. + % Throw the citation away without further notice. + }% +}% +\def\tikzexternalauxlock@handleref@warning#1#2{% + \n + LaTeX Warning: Reference `#1' in external picture `\pgfactualjobname' could not be resolved\noexpand\on@line.\n + This is because the \tikzexternal@realjob.aux file is not accessable in this context, you will need to issue the externalize command\n + \space\space\space#2\n + manually.\n% +} + +% Expands to the default image extension (it is set by +% \tikzexternalize). +% +% This image extension may not resemble the correct one; you may need +% to overwrite this macro *after* \tikzexternalize in this case. +% +% The default setting uses the first registered image extension. +\def\tikzexternalimgextension{}% + +% can be used to (temporarily) disable the externalization. +\def\tikzexternaldisable{% + \let\tikz=\tikzexternal@origtikz + \tikzexternal@TEXDIALECT@restore@picture + \pgfutil@ifundefined{tikzexternal@orig@tikzfadingfrompicture} + {}% NOP + {% + \let\tikzfadingfrompicture=\tikzexternal@orig@tikzfadingfrompicture + \let\endtikzfadingfrompicture=\tikzexternal@orig@endtikzfadingfrompicture + \let\tikzfading=\tikzexternal@orig@tikzfading + }% + \iftikzexternal@optimize + \ifpgf@external@grabshipout + \tikzexternal@optimize@RESTORE + \fi + \fi +}% +% re-enables externalization after a \tikzexternalizedisable. +\def\tikzexternalenable{% + \if\tikzexternalize@hasbeencalled1% + \let\tikz=\tikzexternal@tikz@replacement + \tikzexternal@TEXDIALECT@installreplacement@picture + \pgfutil@ifundefined{tikzfadingfrompicture}% + {}% no special handling for 'fading lib' + {% + % oh, ok -- patch fading lib! + \pgfutil@ifundefined{tikzexternal@orig@tikzfadingfrompicture}{% + \let\tikzexternal@orig@tikzfadingfrompicture=\tikzfadingfrompicture + \let\tikzexternal@orig@endtikzfadingfrompicture=\endtikzfadingfrompicture + \let\tikzexternal@orig@tikzfading=\tikzfading + }{}% + \def\tikzfadingfrompicture{% + \begingroup + \tikzexternaldisable + \tikzexternal@orig@tikzfadingfrompicture}% + \def\endtikzfadingfrompicture{% + \tikzexternal@orig@endtikzfadingfrompicture + \endgroup}% + \def\tikzfading[##1]{% + \begingroup + \tikzexternaldisable + \tikzexternal@orig@tikzfading[##1]% + \endgroup}% + }% + \iftikzexternal@optimize + \ifpgf@external@grabshipout + \tikzexternal@optimize@REPLACE + \fi + \fi + \fi +}% + +% Sets the filename for the next tikzpicture or \tikz shortcommand. +% +% It will *only* be used for the next picture. +% +% If you don't call \tikzsetnextfilename for a picture, a file name +% will be assembled automatically. +% +% Please note that the global file prefix will be prepended anyway. +\def\tikzsetnextfilename#1{\gdef\tikzexternal@nextfile{#1}} +\tikzsetnextfilename{} + + +% These are few TeX dialect-specific commands which need to be overriden when used with +% something different than plain TeX: +% +% 1. this command collects a complete image into a macro, up to (but not including) the +% final TeX-dialect specific end-image command. +% This is really difficult for LaTeX because \end{tikzpicture} either involves dirty +% catcode-hacks to parse the braces or an ugly loop which loops until it +% finds \end followed by {tikzpicture}. +% +% #1: a macro which will be called with the collected environment contents. +% all following tokens: the environment contents. +\long\gdef\tikzexternal@TEXDIALECT@collectpicture#1#2\endtikzpicture{#1{#2}} +% +% 2. the following commands should expand to the TeX-dialect specific begin and end image command, i.e. +% \tikzpicture / \endtikzpicture +% or +% \begin{tikzpicture} / \end{tikzpicture} +% or +% \starttikzpicture / \stoptikzpicture +\def\tikzexternal@TEXDIALECT@begpicture{\tikzpicture} +\def\tikzexternal@TEXDIALECT@endpicture{\endtikzpicture}% +% +% 3. This installs the replacement macros: +\def\tikzexternal@TEXDIALECT@installreplacement@picture{% + \let\tikzpicture=\tikzexternal@tikzpicture@replacement +}% +\def\tikzexternal@TEXDIALECT@restore@picture{% + \let\tikzpicture=\tikzexternal@origpicture +}% + + + + +\let\tikzexternal@origtikz=\tikz +\let\tikzexternal@origpicture=\tikzpicture +\let\tikzexternal@origendpicture=\endtikzpicture +\let\tikzexternal@curfilename=\relax + +% Replacement for '\tikzpicture'. +% +% There are two different states in which this method is applied: +% - normal typesetting. Then, the 'mode' key controls its behavior. +% - externalize mode (i.e. jobname != real job name). Then, it will +% externalize the picture selected by 'jobname' (and only this picture). +\def\tikzexternal@tikzpicture@replacement{% + \leavevmode + \global\tikzexternal@file@isuptodatetrue% may be set to false during checks. + \tikzexternal@getnextfilename\tikzexternal@curfilename + \ifx\tikzexternal@curfilename\pgfutil@empty + \ifpgf@external@grabshipout + % This picture won't be externalized. + % But maybe we can optimize it away: + \iftikzexternal@optimize + % -> it won't be shipped out anyway, so save typesetting time! + \let\tikzexternal@next=\tikzexternal@skipfigure + \else + % include this graphics into the output (even if + % it will be discarded anyway). + \let\tikzexternal@next=\tikzexternal@normalpicture@nographics + \fi + \else + \let\tikzexternal@next=\tikzexternal@normalpicture@nographics + \fi + \else + \ifpgf@external@grabshipout + \tikzifexternaljobnamematches\tikzexternal@curfilename{% + % ok, this here IS the picture for which + % pdflatex --jobname <my name> + % has been invoked. + \let\tikzexternal@next=\tikzexternal@externalizefig + }{% + \iftikzexternal@optimize + % No, another picture should be exported. Simply skip this one + % -> it won't be shipped out anyway, so save typesetting time! + \let\tikzexternal@next=\tikzexternal@skipfigure + \else + % include this graphics into the output (even it + % it will be discarded anyway). + \let\tikzexternal@next=\tikzexternal@normalpicture@nographics + \fi + }% + \else + \ifcase\tikzexternal@opmode\relax + % 'mode=only graphics' + \let\tikzexternal@next=\tikzexternal@forcegraphics + \or + % 'mode=no graphics' + \let\tikzexternal@next=\tikzexternal@normalpicture@nographics + \or + % 'mode=graphics if exists' + \let\tikzexternal@next=\tikzexternal@externalizefig + \or + % 'mode=list only' + \let\tikzexternal@next=\tikzexternal@listmodepicture + \or + % 'mode=convert with system call' + \let\tikzexternal@next=\tikzexternal@externalizefig@systemcall + \or + % 'mode=list and make' + \let\tikzexternal@next=\tikzexternal@list@and@makefile@mode@picture + \fi + \fi + \fi + \tikzexternal@next +}% + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% Replacement for \tikz short command: +\def\tikzexternal@tikz@replacement{% + \pgfutil@ifnextchar[{\tikzexternal@tikz@replacement@opt}{\tikzexternal@tikz@replacement@opt[]}% +}% +\def\tikzexternal@tikz@replacement@opt[#1]{% + \pgfutil@ifnextchar\bgroup{\tikzexternal@tikz@replacement@opt@{#1}}{\tikzexternal@tikz@replacement@opt@@{#1}}% +} +\long\def\tikzexternal@tikz@replacement@opt@#1#2{% + \tikzexternal@tikz@replacement@opt@process{#1}{#2}% +}% +\def\tikzexternal@tikz@replacement@opt@@#1{% + \def\tikz@next{\tikzexternal@tikz@replacement@collectnormalsemicolon{#1}}% + \ifnum\the\catcode`\;=\active\relax% + \def\tikz@next{\tikzexternal@tikz@replacement@collectactivesemicolon{#1}}% + \fi% + \tikz@next} +\long\def\tikzexternal@tikz@replacement@collectnormalsemicolon#1#2;{% + \tikzexternal@tikz@replacement@opt@process{#1}{#2;}% +}% +{ + \catcode`\;=\active + \long\gdef\tikzexternal@tikz@replacement@collectactivesemicolon#1#2;{% + \tikzexternal@tikz@replacement@opt@process{#1}{#2;}% + } +} +\long\def\tikzexternal@tikz@replacement@opt@process#1#2{% + \begingroup + \t@tikzexternal@tmpa=\expandafter{\tikzexternal@TEXDIALECT@begpicture[#1]#2}% + \t@tikzexternal@tmpb=\expandafter{\tikzexternal@TEXDIALECT@endpicture}% + \xdef\pgf@tempa{\the\t@tikzexternal@tmpa\the\t@tikzexternal@tmpb}% + \endgroup + \pgf@tempa +} +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +\def\tikzexternal@getnextfilename@advancecount{% + \begingroup + \c@pgf@counta=\csname c@tikzext@no@\tikzexternal@figurename\endcsname\relax + \advance\c@pgf@counta by1 + \expandafter\xdef\csname c@tikzext@no@\tikzexternal@figurename\endcsname{\the\c@pgf@counta}% + \endgroup +}% + +% Returns the file name which will be used for the next tikzpicture (based on the currently available information only, of course). +\def\tikzexternalgetnextfilename#1{% + \begingroup + \let\tikzexternal@getnextfilename@advancecount\relax% NOP + \def\tikzexternal@protocol@to@file##1{}% NOP + \tikzexternal@getnextfilename#1% + \pgfmath@smuggleone#1% + \endgroup +}% + +% Returns the file name of the current picture. +% +% It returns the empty string in case the command is invoked outside +% of a picture. +% #1 the macro which will contain the file name. +% @see \tikzexternalgetnextfilename +\def\tikzexternalgetcurrentfilename#1{% + \ifx\tikzexternal@curfilename\relax + % we are outside of a picture. + \let#1=\pgfutil@empty + \else + % we are inside of a picture. + \let#1=\tikzexternal@curfilename + \fi +} + +% Fills #1 with a filename for the current picture. +% +% The filename will be generated automatically by appending '-figure<number>' to the real jobname. +% +% This method deals with +% - \tikzsetnextfilename +% - \tikzexternalexportnextfalse +% +% It returns #1={} if the current figure shall NOT be exported. +% +% Please note that both, \tikzsetnextfilename and \tikzexternalexportnextfalse +% affect only ONE picture. They will be reset afterwards. +\def\tikzexternal@getnextfilename#1{% + \let#1=\pgfutil@empty + % determine next file name: + \iftikzexternal@export@enabled + \iftikzexternalexportnext + \begingroup + \t@tikzexternal@tmpa=\expandafter{\tikzexternal@filenameprefix}% + \ifx\tikzexternal@nextfile\pgfutil@empty + \iftikzexternal@onlynamed + \xdef\pgf@tempa{}% + \else + \pgfkeysgetvalue{/tikz/external/figure name}\tikzexternal@figurename + \pgfutil@ifundefined{c@tikzext@no@\tikzexternal@figurename}{% + % initialise on first usage: + \expandafter\gdef\csname c@tikzext@no@\tikzexternal@figurename\endcsname{0}% + }{}% + \t@tikzexternal@tmpb=\expandafter{\tikzexternal@figurename}% + \xdef\pgf@tempa{\the\t@tikzexternal@tmpa\the\t@tikzexternal@tmpb\csname c@tikzext@no@\tikzexternal@figurename\endcsname}% + % advance the counter for 'figure name': + \tikzexternal@getnextfilename@advancecount + \fi + \else + \t@tikzexternal@tmpb=\expandafter{\tikzexternal@nextfile}% + \xdef\pgf@tempa{\the\t@tikzexternal@tmpa\the\t@tikzexternal@tmpb}% + \fi + \endgroup + \let#1=\pgf@tempa + \fi + \fi + % + % Reset global flags: + \global\let\tikzexternal@nextfile=\pgfutil@empty + \global\tikzexternalexportnexttrue + % + \tikzexternal@protocol@to@file#1% +}% + +% #1: the image file name which should be protocolled. (can be a +% macro) +\def\tikzexternal@protocol@to@file#1{% + \ifpgf@external@grabshipout% + \else + \iftikzexternal@genfigurelist + \edef\tikzexternal@temp{#1}% + \ifx\tikzexternal@temp\pgfutil@empty + \else + \pgfutil@ifundefined{tikzexternal@listmode@openedfile}{% + \message{Opening '\tikzexternal@realjob.figlist' for writing.}% + \immediate\openout\tikzexternal@outfile=\tikzexternal@realjob.figlist\relax + \gdef\tikzexternal@listmode@openedfile{1}% + \if\tikzexternal@opmode5% mode='list and make' + \tikzexternal@list@and@make@prepare + \fi + }{}% + \iftikzexternal@verboseio + \immediate\write16{Writing '#1' to '\tikzexternal@realjob.figlist'.}% + \fi + \immediate\write\tikzexternal@outfile{#1}% + \if\tikzexternal@opmode5% mode='list and make' + \tikzexternal@list@and@make@gentarget{#1}% + \fi + \fi + \fi + \fi +}% + +\def\tikzexternal@list@and@make@gentarget#1{% + \tikzexternal@assemble@systemcall{#1}{\pgf@tempa}% + \iftikzexternal@verboseio + \immediate\write16{Writing '#1' to '\tikzexternal@realjob.makefile'.}% + \fi + \global\tikzexternal@file@isuptodatetrue% only check for force remake: + \tikzexternal@checkforceremake% + \immediate\write\tikzexternal@outmakefile{#1\tikzexternalimgextension: \iftikzexternal@file@isuptodate\else FORCEREMAKE\fi}% + \immediate\write\tikzexternal@outmakefile{\tikzexternal@TABchar\pgf@tempa}% + \immediate\write\tikzexternal@outmakefile{}% +} + +\def\tikzexternal@list@and@make@prepare{% + \iftikzexternal@verboseio + \immediate\write16{Opening '\tikzexternal@realjob.makefile' for writing.}% + \fi + \begingroup + % this makes \tikzexternal@outmakefile global: + \globaldefs=1 + % this gets round '\outer\newwrite' in plain TeX: + \csname newwrite\endcsname\tikzexternal@outmakefile + \endgroup + \immediate\openout\tikzexternal@outmakefile=\tikzexternal@realjob.makefile\relax + \immediate\write\tikzexternal@outmakefile{ALL_FIGURE_NAMES=\tikzexternal@DOLLARchar(shell cat \tikzexternal@realjob.figlist)}% + \immediate\write\tikzexternal@outmakefile{ALL_FIGURES=\tikzexternal@DOLLARchar(ALL_FIGURE_NAMES:\tikzexternal@PERCENTchar=\tikzexternal@PERCENTchar\tikzexternalimgextension)}% + \immediate\write\tikzexternal@outmakefile{}% + \immediate\write\tikzexternal@outmakefile{allimages: \tikzexternal@DOLLARchar(ALL_FIGURES)}% + \immediate\write\tikzexternal@outmakefile{\tikzexternal@TABchar @echo All images exist now. Use make -B to re-generate them.}% + \immediate\write\tikzexternal@outmakefile{}% + \immediate\write\tikzexternal@outmakefile{FORCEREMAKE:}% + \immediate\write\tikzexternal@outmakefile{}% + % + % support for .dep files and auto-dependencies: + \immediate\write\tikzexternal@outmakefile{include $(ALL_FIGURE_NAMES:\tikzexternal@PERCENTchar=\tikzexternal@PERCENTchar.\tikzexternaldepext)}% + \immediate\write\tikzexternal@outmakefile{}% + \tikzexternalmakefiledefaultdeprule + \immediate\write\tikzexternal@outmakefile{}% + \tikzexternal@outmakefile@pendingcommands + \pgfutil@ifundefined{AtEndDocument}{}{% + \AtEndDocument{\immediate\write16{===== mode=`list and make': Use 'make -f \tikzexternal@realjob.makefile' to generate all images. Then, re-run (pdf)latex \tikzexternal@realjob. =====}}% + }% +}% +\def\tikzexternaldepext{dep} + +\def\tikzexternalmakefiledefaultdeprule{% + \immediate\write\tikzexternal@outmakefile{\tikzexternal@PERCENTchar.\tikzexternaldepext:}% + \immediate\write\tikzexternal@outmakefile{\tikzexternal@TABchar touch $@ \tikzexternal@HASHchar\space will be filled later.}% +}% + +% Invokes '#1' if a makefile is to be written and '#2' if not. +\def\tikzexternalifwritesmakefile#1#2{% + \if5\tikzexternal@opmode #1\else #2\fi +}% +\def\tikzexternal@outmakefile@pendingcommands{}% + +% Will write something to the make file. If the makefile is not yet +% opened, #1 will be written as soon as it *is* opened. +\def\tikzexternalwritetomakefile#1{% + \pgfutil@ifundefined{tikzexternal@outmakefile}{% + \expandafter\gdef\expandafter\tikzexternal@outmakefile@pendingcommands\expandafter{% + \tikzexternal@outmakefile@pendingcommands + \immediate\write\tikzexternal@outmakefile{#1}% + }% + }{% + \immediate\write\tikzexternal@outmakefile{#1}% + }% +}% + +\def\tikzexternal@dep@file@name{} + +% Adds a dependency for the externalized picture file name `#1', +% namely another file `#2'. +% +% #1: the fully qualified path name (without image extension) of the +% external graphics for which we are adding a dependency. +% #2: a file name. If this file gets changed, #1 shall be remade. +% +% This command will be actived as soons as \tikzexternalize has been +% called. +\def\tikzexternalfiledependsonfile@ACTIVE#1#2{% + \begingroup + \def\tikzpicturedependsonfile@name{#1}% + \ifx\tikzpicturedependsonfile@name\pgfutil@empty + % could be auto-generated: empty file name means "picture + % won't be externalized". Skip it. + \else + \edef\tikzpicturedependsonfile@name{#1.\tikzexternaldepext}% + \ifx\tikzexternal@dep@file@name\tikzpicturedependsonfile@name + % file is open and ready. + \else + % create new output file. + \pgfutil@ifundefined{tikzexternal@dep@file}{% + \begingroup + % this makes \tikzexternal@dep@file global: + \globaldefs=1 + % this gets round '\outer\newwrite' in plain TeX: + \csname newwrite\endcsname\tikzexternal@dep@file + \endgroup + }{}% + \ifx\tikzexternal@dep@file@name\pgfutil@empty + \else + % it is already open. Close it. + \immediate\closeout\tikzexternal@dep@file + \fi + \global\let\tikzexternal@dep@file@name=\tikzpicturedependsonfile@name + \immediate\openout\tikzexternal@dep@file=\tikzexternal@dep@file@name\relax + \fi + \immediate\write\tikzexternal@dep@file{#1\tikzexternalimgextension: #2}% + \fi + \endgroup +}% +\def\tikzexternalfiledependsonfile#1#2{}% NO-OP until \tikzexternalize has been called. + +% Adds a dependency for the NEXT picture which is about to be +% externalized. If we are currently inside of a picture, the +% dependency is added for this current picture. +% +% #1: a file name. If this file gets changed, the tikzpicture's +% externalized graphics shall be remade. +% +% This command will be actived as soons as \tikzexternalize has been +% called. +\def\tikzpicturedependsonfile@ACTIVE#1{% + \begingroup + \tikzexternalgetcurrentfilename\tikzpicturedependsonfile@name + \ifx\tikzpicturedependsonfile@name\pgfutil@empty + \tikzexternalgetnextfilename\tikzpicturedependsonfile@name + \fi + \expandafter\tikzexternalfiledependsonfile\expandafter{\tikzpicturedependsonfile@name}{#1}% + \endgroup +}% +\def\tikzpicturedependsonfile#1{}% NO-OP until \tikzexternalize has been called. + + +% This command is invoked +% if and only if ( (grab mode && --jobname matches) || 'mode=graphics if exists' ) +% +% It converts the current tikzpicture into an image in grab mode +% or processes the 'graphics if exist' mode. +\def\tikzexternal@externalizefig{% + \ifpgf@external@grabshipout% + % In this case, we already KNOW that the filename matches. + \expandafter\tikzexternal@externalizefig@GRAB% + \else + \expandafter\tikzexternal@externalizefig@mode@graphics@if@exists + \fi% +} +\def\tikzexternal@externalizefig@mode@graphics@if@exists{% + % check if there is already a file. + % In that case, use it. If not, typeset the picture normally. + \gdef\pgf@filename{}% + \xdef\pgf@tempa{\noexpand\pgf@findfile\pgfsys@imagesuffixlist:+{\tikzexternal@curfilename}}% + \pgf@tempa + \ifx\pgf@filename\pgfutil@empty% + % Note: since we have no 'GRAB' mode, we do not have to deal with optimization. + % there is no graphics. + \expandafter\tikzexternal@normalpicture@nographics + \else + \expandafter\tikzexternal@forcegraphics + \fi +}% + + +% Used by the optimization code. +% It will be called if GRAB mode is on. +% See the 'optimize command away' key. +\def\tikzexternal@optimize@away@cmd#1#2{% + \pgfutil@ifnextchar[{% + \tikzexternal@optimize@away@cmd@{#1}{#2}% + }{% + \tikzexternal@optimize@away@cmd@{#1}{#2}[]% + }% +}% +\def\tikzexternal@optimize@away@cmd@#1#2[#3]{% + \def\tikz@temp{#2}% + \ifx\tikz@temp\pgfutil@empty + \def\tikz@temp{\tikzexternal@optimize@away@cmd@auto{#1}{#3}}% + \else + \ifcase#2\relax + \def\tikzexternal@optimize@away@cmd@manual{% + \tikzexternal@optimize@away@cmd@@@{#1}{#3}{}% + }% + \or + \def\tikzexternal@optimize@away@cmd@manual##1{% + \tikzexternal@optimize@away@cmd@@@{#1}{#3}{{##1}}% + }% + \or + \def\tikzexternal@optimize@away@cmd@manual##1##2{% + \tikzexternal@optimize@away@cmd@@@{#1}{#3}{{##1}{##2}}% + }% + \or + \def\tikzexternal@optimize@away@cmd@manual##1##2##3{% + \tikzexternal@optimize@away@cmd@@@{#1}{#3}{{##1}{##2}{##3}}% + }% + \or + \def\tikzexternal@optimize@away@cmd@manual##1##2##3##4{% + \tikzexternal@optimize@away@cmd@@@{#1}{#3}{{##1}{##2}{##3}{##4}}% + }% + \or + \def\tikzexternal@optimize@away@cmd@manual##1##2##3##4##5{% + \tikzexternal@optimize@away@cmd@@@{#1}{#3}{{##1}{##2}{##3}{##4}{##5}}% + }% + \or + \def\tikzexternal@optimize@away@cmd@manual##1##2##3##4##5##6{% + \tikzexternal@optimize@away@cmd@@@{#1}{#3}{{##1}{##2}{##3}{##4}{##5}{##6}}% + }% + \or + \def\tikzexternal@optimize@away@cmd@manual##1##2##3##4##5##6##7{% + \tikzexternal@optimize@away@cmd@@@{#1}{#3}{{##1}{##2}{##3}{##4}{##5}{##6}{##7}}% + }% + \or + \def\tikzexternal@optimize@away@cmd@manual##1##2##3##4##5##6##7##8{% + \tikzexternal@optimize@away@cmd@@@{#1}{#3}{{##1}{##2}{##3}{##4}{##5}{##6}{##7}{##8}}% + }% + \or + \def\tikzexternal@optimize@away@cmd@manual##1##2##3##4##5##6##7##8##9{% + \tikzexternal@optimize@away@cmd@@@{#1}{#3}{{##1}{##2}{##3}{##4}{##5}{##6}{##7}{##8}{##9}}% + }% + \fi + \def\tikz@temp{\tikzexternal@optimize@away@cmd@manual}% + \fi + \tikz@temp +}% +\def\tikzexternal@optimize@away@cmd@auto#1#2{% + \pgfutil@ifnextchar\bgroup{% + \tikzexternal@optimize@away@cmd@auto@{#1}{#2}% + }{% + \tikzexternal@optimize@away@cmd@auto@{#1}{#2}{<no argument in curly braces>}% give empty argument. + } +}% + +\def\tikzexternal@optimize@away@cmd@auto@#1#2#3{% + \tikzexternal@optimize@away@cmd@@@{#1}{#2}{{#3}}% <-- provide braces +}% +\def\tikzexternal@optimize@away@cmd@@@#1#2#3{% + \begingroup + \toks0={#1[#2]#3}% + \iftikzexternal@verbose@optimize + \immediate\write16{The command '\the\toks0' has been optimized away. Use '/tikz/external/optimize=false' to disable this.}% + \fi + \endgroup + \begingroup + \pgfkeysvalueof{/tikz/external/optimize away text/.@cmd}#1\pgfeov% + \endgroup +}% + +\def\tikzexternal@optimize@away@latex@env#1{% + \def\tikzexternal@optimize@away@latex@env@{#1}% + \begingroup + \def\tikzexternal@laTeX@collect@until@end@tikzpicturetikzpicturestring{#1}% + \tikzexternal@TEXDIALECT@collectpicture\tikzexternal@optimize@away@latex@env@close +}% +\long\def\tikzexternal@optimize@away@latex@env@close#1{% + \iftikzexternal@verbose@optimize + \immediate\write16{The complete contents of \string\begin{tikzexternal@optimize@away@latex@env@} up to the next \end{tikzexternal@optimize@away@latex@env@} has been optimized away because it does not contribute to exported PDF. Use '/tikz/external/optimize=false' to disable this.}% + \fi + \endgroup + % we still need to invoke \end{<name>} in latex because \begin{<name>} + % starts a local group - that must be closed properly. Make sure then \end<name> does nothing: + \expandafter\let\csname end\tikzexternal@optimize@away@latex@env@\endcsname=\relax + \expandafter\end\expandafter{\tikzexternal@optimize@away@latex@env@}% +}% + +\def\tikzexternal@optimize@REPLACE{% + \pgfkeysvalueof{/tikz/external/optimize/install/.@cmd}\pgfeov +}% + +\def\tikzexternal@optimize@RESTORE{% + \pgfkeysvalueof{/tikz/external/optimize/restore/.@cmd}\pgfeov +}% + +% Closes one 'tikzpicture' environment. This is only used for LaTeX, +% because the '\end{tikzpicture}' command would raise an exception otherwise. +% It does *not* call \endtikzpicture. +\def\tikzexternal@closeenvironments{% + \let\endtikzpicture=\relax + \tikzexternal@TEXDIALECT@endpicture + \let\endtikzpicture=\tikzexternal@origendpicture + \let\tikzexternal@curfilename=\relax +} + +% Throws a tikzpicture away - without further notice. +% Used if we are currently converting *another* picture. No need to waste time +% with expensive pictures if they are not shipped out anyway. +% +% See the 'optimize' key to disable this. +\def\tikzexternal@skipfigure{% + \tikzexternal@TEXDIALECT@collectpicture\tikzexternal@skipfigure@@ +} +\long\def\tikzexternal@skipfigure@@#1{% + \iftikzexternal@verbose@optimize + \immediate\write16{A tikzpicture has been optimized away. Use '/tikz/external/optimize=false' to disable this.}% + \fi + \tikzexternal@closeenvironments +} + +% Processes tikzpicture normally; without any externalization. +% +% We need to do further work here to deal with NESTED tikzpicture environments +% because all of them shall also be typeset normally. +% +% Idea: +% 1. restore the original \tikzpicture macro +% 2. install the replacement \tikzpicture in \end{tikzpicture}. +% and keep track of nesting. +% +% FIXME: could it be possible that nested tikzpictures use other code anyway? +\def\tikzexternal@normalpicture@nographics{% + \tikzexternal@nestedflagfalse + \let\tikzpicture=\tikzexternal@normalpicture@begreplace + \let\endtikzpicture=\tikzexternal@normalpicture@endreplace + \tikzpicture +} +\def\tikzexternal@normalpicture@begreplace{% + \begingroup + \tikzexternal@nestedflagtrue + \tikzexternal@origpicture +} +\def\tikzexternal@normalpicture@endreplace{% + \tikzexternal@origendpicture + \endgroup + \iftikzexternal@nestedflag + \else + \let\tikzpicture=\tikzexternal@tikzpicture@replacement + \let\endtikzpicture=\tikzexternal@origendpicture + \fi +}% + +% Assumes there is an image on disk and reads it. The tikzpicture is thrown away. +\def\tikzexternal@forcegraphics{% + \tikzexternal@TEXDIALECT@collectpicture\tikzexternal@forcegraphics@@ +} +\long\def\tikzexternal@forcegraphics@@#1{% + \expandafter\pgfincludeexternalgraphics\expandafter{\tikzexternal@curfilename}% + \tikzexternal@closeenvironments +} + +% Simply replaces the complete picture by some placeholder text. +% It is used by 'mode=list only' to reduce runtime. +\def\tikzexternal@listmodepicture{% + \tikzexternal@TEXDIALECT@collectpicture\tikzexternal@listmodepicture@@ +} +\long\def\tikzexternal@listmodepicture@@#1{% + \pgfkeysvalueof{/tikz/external/image discarded text}% + \tikzexternal@closeenvironments +} + +% check if there is already a file. +% In that case, use it. If not, skip it. +\def\tikzexternal@list@and@makefile@mode@picture{% + \gdef\pgf@filename{}% + \xdef\pgf@tempa{\noexpand\pgf@findfile\pgfsys@imagesuffixlist:+{\tikzexternal@curfilename}}% + \pgf@tempa + \ifx\pgf@filename\pgfutil@empty% + % Note: since we have no 'GRAB' mode, we do not have to deal with optimization. + % there is no graphics. + \expandafter\tikzexternal@listmodepicture + \else + \expandafter\tikzexternal@forcegraphics + \fi +}% + +\def\tikzexternal@externalizefig@GRAB{% + \iftikzexternal@optimize + \ifpgf@external@grabshipout + \tikzexternal@optimize@RESTORE + \fi + \fi + \def\tikzpicture{% + \def\tikzpicture{% make sure that nested \tikzpicture are processed normally. + \begingroup + \def\endtikzpicture{% + \tikzexternal@origendpicture + \endgroup + }% + \tikzexternal@origpicture + }% + \pgf@external@grab{\tikzexternal@curfilename}% + \tikzexternal@origpicture + }% + \def\endtikzpicture{% + \tikzexternal@origendpicture + \pgf@externalend + \let\tikzpicture=\tikzexternal@tikzpicture@replacement + \let\endtikzpicture=\tikzexternal@origendpicture + \iftikzexternal@optimize + \ifpgf@external@grabshipout + \tikzexternal@optimize@REPLACE + \fi + \fi + }% + \tikzpicture +}% + + +% 1. Discards the current picture in this document. +% 2. Checks whether an image exists already. If that is the case: acquire it. +% 3. If no image exists: call '/tikz/external/system call'. This will +% process \tikzexternal@externalizefig. +% 4. Assert that finally an image exists and use it. +\def\tikzexternal@externalizefig@systemcall{% + \tikzexternal@TEXDIALECT@collectpicture\tikzexternal@externalizefig@systemcall@@ +} + +{ +\catcode`\"=12 +\catcode`\'=12 +\catcode`\;=12 +\catcode`\&=12 +\catcode`\-=12 +\xdef\tikzexternal@normal@dq{"} +\xdef\tikzexternal@normal@sq{'} +\xdef\tikzexternal@normal@semic{;} +\xdef\tikzexternal@normal@and{&} +\xdef\tikzexternal@normal@dash{-} +\catcode`\"=13 +\catcode`\'=13 +\catcode`\;=13 +\catcode`\&=13 +\catcode`\-=13 +\gdef\tikzexternal@activate@normal@dq{\let"=\tikzexternal@normal@dq} +\gdef\tikzexternal@activate@normal@sq{\let'=\tikzexternal@normal@sq} +\gdef\tikzexternal@activate@normal@semic{\let;=\tikzexternal@normal@semic} +\gdef\tikzexternal@activate@normal@and{\let&=\tikzexternal@normal@and} +\gdef\tikzexternal@activate@normal@dash{\let-=\tikzexternal@normal@dash} +\catcode`\|=0 +\catcode`\\=12 +|xdef|tikzexternal@normal@backslash{\}% +} +{ +\catcode`\^^I=12 +\catcode`\$=12 +\catcode`\%=12 +\catcode`\#=12 +\gdef\tikzexternal@HASHchar{#} +\gdef\tikzexternal@TABchar{^^I}\gdef\tikzexternal@PERCENTchar{%}\xdef\tikzexternal@DOLLARchar{$}} + +% Creates the '/tikz/external/system call' command as string and +% returns it into the (global!) macro #2. +% #1: the image file name (as returned by +% \tikzexternalgetnextfilename) +% #2: the global return value macro +% +\def\tikzexternal@assemble@systemcall#1#2{% + \begingroup + \def\image{#1}% + \iftikzexternal@auto@detect@jobname + \edef\texsource{\string\def\string\tikzexternalrealjob{\tikzexternal@realjob}\string\input{\tikzexternal@realjob}}% + \else + \let\texsource=\tikzexternal@realjob + \fi + \ifnum\the\catcode`\"=13 \tikzexternal@activate@normal@dq\fi + \ifnum\the\catcode`\'=13 \tikzexternal@activate@normal@sq\fi + \ifnum\the\catcode`\;=13 \tikzexternal@activate@normal@semic\fi + \ifnum\the\catcode`\-=13 \tikzexternal@activate@normal@dash\fi + \let\\=\tikzexternal@normal@backslash + \xdef#2{\pgfkeysvalueof{/tikz/external/system call}}% + \endgroup +}% +\long\def\tikzexternal@externalizefig@systemcall@@#1{% + \tikzexternal@externalizefig@systemcall@uptodatecheck% + \iftikzexternal@file@isuptodate + \iftikzexternal@verboseio + \immediate\write16{===== Image '\tikzexternal@curfilename' is up-to-date. ======}% + \fi + \let\pgf@filename=\tikzexternal@curfilename + \else + \begingroup + % no such image. Generate it! + \tikzexternal@assemble@systemcall{\tikzexternal@curfilename}{\pgf@tempa}% + \iftikzexternal@verboseio + \immediate\write16{===== 'mode=convert with system call': Invoking '\pgf@tempa' ========}% + \fi + % + \tikzexternalauxlock@setlock1% + \immediate\write18{\pgf@tempa}% + \tikzexternalauxlock@setlock0% + \expandafter\tikzexternal@externalizefig@systemcall@assertsuccess\expandafter{\pgf@tempa}% + \pgfmath@smuggleone\pgf@filename + \endgroup + \fi + \ifx\pgf@filename\pgfutil@empty + % error recovery: something did not work! Try to load it + % anyway. Perhaps it was just that shell-escape wasn't + % enabled. + \begingroup + \toks0={% + \tikzexternaldisable + \pgfutil@ifundefined{scantokens}{\long\def\scantokens##1{##1}}{}% + }% + % FIXME : THIS WILL FAIL IF THERE IS '##' INSIDE OF '#1'! + % for example something like /.style={#1} in the picture environment *will* fail. + \toks1={% + \tikzpicture#1% + }% + \toks2={% + \tikzexternal@TEXDIALECT@endpicture + \tikzexternalenable + }% + \xdef\tikzexternal@externalizefig@systemcall@next{% + \the\toks0 + % try reading them again as if they were in the input file. + \noexpand\scantokens{\the\toks1 }% + \the\toks2 + }% + \endgroup + \else + % ok, take the image! + \expandafter\pgfincludeexternalgraphics\expandafter{\tikzexternal@curfilename}% + \gdef\tikzexternal@externalizefig@systemcall@next{\tikzexternal@closeenvironments}% + \fi + \tikzexternal@externalizefig@systemcall@next +}% + +% Sets \iftikzexternal@file@isuptodate to false if one of the "force +% remake" things is active. +\def\tikzexternal@checkforceremake{% + \iftikzexternal@force@remake + \global\tikzexternal@file@isuptodatefalse + \else + \iftikzexternalremakenext + \global\tikzexternal@file@isuptodatefalse + \global\tikzexternalremakenextfalse + \fi + \fi +} + +% Checks whether the current picture needs to be externalized. +% +% This is the case if +% a) there is no external image yet, +% b) the picture has been invalidated manually. +% +% It returns \iftikzexternal@file@isuptodate accordingly. +\def\tikzexternal@externalizefig@systemcall@uptodatecheck{% + \tikzexternal@checkforceremake + \iftikzexternal@file@isuptodate + % check if there is already a file. + % In that case, use it. If that is not the case, generate it and include it afterwards. + \gdef\pgf@filename{}% + \xdef\pgf@tempa{\noexpand\pgf@findfile\pgfsys@imagesuffixlist:+{\tikzexternal@curfilename}}% + \pgf@tempa + \ifx\pgf@filename\pgfutil@empty% + \global\tikzexternal@file@isuptodatefalse + \fi + \fi +}% + +% \pgf@filename will be empty if the assertion failed. +\def\tikzexternal@externalizefig@systemcall@assertsuccess#1{% + % check if there is a file now and raise an error message if not. + \gdef\pgf@filename{}% + \xdef\pgf@tempa{\noexpand\pgf@findfile\pgfsys@imagesuffixlist:+{\tikzexternal@curfilename}}% + \pgf@tempa + \ifx\pgf@filename\pgfutil@empty% + \PackageError{tikz}{Sorry, the system call '#1' did NOT result in a usable output file '\tikzexternal@curfilename' (expected one of \pgfsys@imagesuffixlist). Please verify that you have enabled system calls. For pdflatex, this is 'pdflatex -shell-escape'. Sometimes it is also named 'write 18' or something like that. Or maybe the command simply failed? Error messages can be found in '\tikzexternal@curfilename.log'. If you continue now, I'll try to typeset the picture}% + \fi +}% + +% Overwrite error message of pgf. +% This happens if the generated image was empty, i.e. if there was no \shipout. +\def\pgfexternal@error@no@shipout{% + \begingroup + \tikzexternal@assemble@systemcall{\pgfactualjobname}{\pgf@tempa}% + \toks0=\expandafter{\pgf@tempa}% + \PackageError{tikz}{Sorry, image externalization failed: the resulting image was EMPTY. I tried to externalize '\pgfactualjobname', but it seems there is no such image in the document!? + \if\tikzexternal@opmode4 ^^J +\space\space You are currently using 'mode=convert with system call'. This problem can happen if the image (or one of the images preceeding it) was declared inside of a \string\label{} (i.e. in the .aux file): 'convert with system call' has no access to the main aux file.^^J +\space\space Possible solutions in this case:^^J +\space\space a) Try using 'mode=list and make',^^J +\space\space b) Issue the externalization command '\the\toks0' *manually* (also check the preceeding externalized images, perhaps the file name sequence is not correct).^^J +\space\space Repeat: the resulting image was EMPTY, your attention is required +\else + \if\tikzexternal@opmode5 ^^J +\space\space You are currently using 'mode=list and make'. Possible solutions:^^J +\space\space a) Try to delete `\tikzexternal@realjob.makefile'. Perhaps it is not up-to-date.^^J +\space\space b) Perhaps pictures are declared inside of \string\label{} and the .aux file is not up-to-date. Re-run latex, perhaps re-generate the graphics as well.^^J +\space\space Repeat: the resulting image was EMPTY, your attention is required + \fi +\fi}% + \endgroup +}% |