From efea67c15fb7c7523abed04b817bd49f99d020ba Mon Sep 17 00:00:00 2001 From: Karl Berry Date: Fri, 27 Mar 2009 17:38:44 +0000 Subject: import.sty update (24mar09) git-svn-id: svn://tug.org/texlive/trunk@12533 c570f23f-e606-0410-a88d-b1316a301751 --- Master/texmf-dist/tex/latex/import/import.sty | 119 ++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 Master/texmf-dist/tex/latex/import/import.sty (limited to 'Master/texmf-dist/tex/latex/import/import.sty') diff --git a/Master/texmf-dist/tex/latex/import/import.sty b/Master/texmf-dist/tex/latex/import/import.sty new file mode 100644 index 00000000000..cce424c46ad --- /dev/null +++ b/Master/texmf-dist/tex/latex/import/import.sty @@ -0,0 +1,119 @@ +% import.sty Ver 5.1 23-Mar-2009 Donald Arseneau (asnd@triumf.ca) +% +% This software is in the public domain; free of any restrictions. +% +% Two new \LaTeX\ commands, "\import {full_path} {file}" and +% "\subimport {path_extension} {file}" are defined to input a file +% from another directory, allowing that file to find its own inputs +% (using "\input", "\includegraphics" etc.) in that directory. +% +% Alias command names are "\inputfrom" and "\subinputfrom". +% +% Also provided are "\includefrom" and "\subincludefrom", which are +% based on the "\include" command, rather than "\input". There are +% also "*" variants described below. +% +% For example, if a remote file "/usr5/friend/work/report.tex" has contents: +% +% My graph: \includegraphics{picture} +% \input{explanation} +% +% then you can safely input that file in your own document with the command +% "\import{/usr5/friend/work/}{report}"; the explanation and picture will +% be taken from the "/usr5/friend/work/" directory. +% +% The "\subimport" command takes a relative path instead of a full absolute +% file path, and it allows imported files to import files themselves, using +% their own directory as the root of another "path_extension". Do not use +% both "\import" and "\subimport" in the same file. +% +% For example, if a file is imported (using either command) from directory +% "abc/" and that file contains the command "\subimport{lmn/}{xyz}" then +% file "abc/lmn/xyz.tex" is input, and any "\input" commands in that file +% will read files from directory "abc/lmn/". +% +% Note that the sub-import path is merely appended to the current import +% path. Mistakes from this method must be rectified by "\import@path@fix". +% +% Depending on on how your \TeX\ system is configured, if a file with the +% same name as the import file exists in the current directory or in the +% TEXINPUTS path, that other file will be read in preference to one in the +% import directory. So here is the real behavior of the previous example: +% Given the sequence "\import{abc/}{one}", "\subimport{lmn/uvw/}{two}" (in +% file one), "\input{three}" (in file two), \LaTeX\ first looks for three.tex +% in the TEXINPUTS search path; if not found, it tries "abc/lmn/uvw/three"; +% if that doesn't exist, it tries "abc/three"; if still not found, it tries +% the defined "\input@path", if there is one. +% +% To avoid searching the TEXINPUTS path when importing files, use the `star' +% versions of the commands: "\import*" and "\subimport*". +% +% A hook "\import@path@fix" is provided to reformat the import path +% to fit the syntax of a particular operating system. It *could* be +% defined to convert unix-style path names to the local format, but +% all it does now is remove "][" from VMS sub-import directories. +% +% Presently, the paths are defined ``locally'' so input files must have +% balanced grouping. +%====================== END INSTRUCTIONS =========================== + +\ProvidesPackage{import}[2009/03/23 \space v 5.1] +\ProcessOptions + +\@ifundefined{import}{% + \newcommand{\import}{\global\let\import@path\@empty \@doimport\input} +}{ + \PackageWarning{import}{\string\import\space command is already defined!^^J% + Defining only its \string\inputfrom\space alias.} +} +\newcommand{\inputfrom}{\global\let\import@path\@empty \@doimport\input} +\newcommand{\subimport}{\@doimport\input} +\newcommand{\subinputfrom}{\@doimport\input} +\newcommand{\includefrom}{\global\let\import@path\@empty \@doimport\include} +\newcommand{\subincludefrom}{\@doimport\include} + +\def\@doimport#1{\@ifstar + {\@sub@import#1\@iffileonpath}{\@sub@import#1\IfFileExists}} + +% #1 = import command, #2 = switch for *, #3 = import path extension +\def\@sub@import#1#2#3{% + \begingroup + \protected@edef\@tempa{\endgroup + \let\noexpand\IfFileExists\noexpand#2% + \noexpand\@import \noexpand#1% param 1 + {\@ifundefined{input@path}{}{\input@path}}% 2 + {\@ifundefined{Ginput@path}{}{\Ginput@path}}% 3 + {\import@path#3}{\import@path}% 4,5 + {\ifx\IfFileExists\im@@IfFileExists \noexpand\im@@IfFileExists + \else \noexpand\IfFileExists \fi}}% 6 + \@tempa} +% +% #1 = import command (\input or \include) +% #2 = previous input path list. #3 = previous graphics input path list. +% #4 = full path added to each. #5 = previous import path. +% #6 = previous \IfFileExists. #7 = file name. +% +\def\@import#1#2#3#4#5#6#7{% + \gdef\import@path{#4}% + \protected@edef\input@path{{\import@path@fix{#4}}#2}% + \protected@edef\Ginput@path{{\import@path@fix{#4}}#3}% + #1{#7}% + \let\IfFileExists#6% restore after \import* + \gdef\import@path{#5}% + \def\input@path{#2}\ifx\input@path\@empty \let\input@path\@undefined \fi + \def\Ginput@path{#3}\ifx\Ginput@path\@empty \let\Ginput@path\@undefined \fi +} + +\let\im@@IfFileExists\IfFileExists +\gdef\import@path{} + +\let\import@path@fix\@firstofone % default + +% Check for vms file names and set \import@path@fix appropriately +\gdef\@gtempa{[]} +\ifx\@gtempa\@currdir % VMS directory syntax + \gdef\import@path@fix#1{\@gobbleVMSbrack#1][>} + \gdef\@gobbleVMSbrack#1][#2{#1\ifx>#2\@empty + \expandafter \strip@prefix \fi % Gobble up to > + \@gobbleVMSbrack #2} +\fi -- cgit v1.2.3