From e0c6872cf40896c7be36b11dcc744620f10adf1d Mon Sep 17 00:00:00 2001 From: Norbert Preining Date: Mon, 2 Sep 2019 13:46:59 +0900 Subject: Initial commit --- macros/latex/contrib/theoremref/COPYING | 340 +++++++++++++++++++++ macros/latex/contrib/theoremref/README | 8 + macros/latex/contrib/theoremref/theoremref-doc.pdf | Bin 0 -> 351316 bytes macros/latex/contrib/theoremref/theoremref-doc.tex | 190 ++++++++++++ macros/latex/contrib/theoremref/theoremref.sty | 230 ++++++++++++++ 5 files changed, 768 insertions(+) create mode 100644 macros/latex/contrib/theoremref/COPYING create mode 100644 macros/latex/contrib/theoremref/README create mode 100644 macros/latex/contrib/theoremref/theoremref-doc.pdf create mode 100644 macros/latex/contrib/theoremref/theoremref-doc.tex create mode 100644 macros/latex/contrib/theoremref/theoremref.sty (limited to 'macros/latex/contrib/theoremref') diff --git a/macros/latex/contrib/theoremref/COPYING b/macros/latex/contrib/theoremref/COPYING new file mode 100644 index 0000000000..623b6258a1 --- /dev/null +++ b/macros/latex/contrib/theoremref/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. However, as a +special exception, the source code distributed need not include +anything that is normally distributed (in either source or binary +form) with the major components (compiler, kernel, and so on) of the +operating system on which the executable runs, unless that component +itself accompanies the executable. + +If distribution of executable or object code is made by offering +access to copy from a designated place, then offering equivalent +access to copy the source code from the same place counts as +distribution of the source code, even though third parties are not +compelled to copy the source along with the object code. + + 4. You may not copy, modify, sublicense, or distribute the Program +except as expressly provided under this License. Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/macros/latex/contrib/theoremref/README b/macros/latex/contrib/theoremref/README new file mode 100644 index 0000000000..0c08aba597 --- /dev/null +++ b/macros/latex/contrib/theoremref/README @@ -0,0 +1,8 @@ +The theoremref package provides variants of the \label and \ref +commands for theorem-like environments, capable of automatically +typesetting references including the theorem name (apart from the theorem +number). This comes handy if you do not feel like manually checking +and fixing every \ref command in your file whenever you need to change +a Lemma to a Proposition or Theorem or vice versa. + +The package is dually licensed as LPPL or GPL. diff --git a/macros/latex/contrib/theoremref/theoremref-doc.pdf b/macros/latex/contrib/theoremref/theoremref-doc.pdf new file mode 100644 index 0000000000..3aa0159bc0 Binary files /dev/null and b/macros/latex/contrib/theoremref/theoremref-doc.pdf differ diff --git a/macros/latex/contrib/theoremref/theoremref-doc.tex b/macros/latex/contrib/theoremref/theoremref-doc.tex new file mode 100644 index 0000000000..e460266827 --- /dev/null +++ b/macros/latex/contrib/theoremref/theoremref-doc.tex @@ -0,0 +1,190 @@ +\documentclass[pagesize=auto]{scrartcl} + +% Many thanks to whoever generated this documentation file. --E.J. + +\usepackage{fixltx2e} +\usepackage{etex} +\usepackage{lmodern} +\usepackage[T1]{fontenc} +\usepackage{textcomp} +\usepackage[utf8]{inputenc} +\usepackage{microtype} +\usepackage{hyperref} + +\newcommand*{\mail}[1]{\href{mailto:#1}{\texttt{#1}}} +\newcommand*{\pkg}[1]{\textsf{#1}} +\newcommand*{\cs}[1]{\texttt{\textbackslash#1}} +\makeatletter +\newcommand*{\cmd}[1]{\cs{\expandafter\@gobble\string#1}} +\makeatother +\newcommand*{\meta}[1]{\textlangle\textsl{#1}\textrangle} +\newcommand*{\marg}[1]{\texttt{\{}\meta{#1}\texttt{\}}} + +\addtokomafont{title}{\rmfamily} + +\title{The \pkg{theoremref} package} +\author{Emil Jeřábek\thanks{\mail{jerabek@math.spam.cz} (replace \texttt{spam} with \texttt{cas})}} +\date{2013/05/22} + + +\begin{document} + +\maketitle + + +\section{Introduction} + +So, you are writting up your math paper or thesis. There is the +all-important Lemma~3.14 referenced from a dozen places throughout +the paper, but you have just realized that its proof requires another +lemma which should go before Lemma~3.14, hence all the references to +Lemma~3.14 have to shift to Lemma~3.15. Now that's quite simple to do: +you just insert the new lemma, and \LaTeX\ relabels the references for you +behind the scenes. Good. + +Then you decide that Lemma~3.15 is, in fact, so important that you +better call it a Theorem rather than just a Lemma, hence all the +references to Lemma~3.15 should change to Theorem 3.15. Now that's +quite simple to do: you just replace the name of the theorem +environment of~3.15, and \LaTeX\ relabels the references for you behind +the scenes\dots\ uhhh, except that it does not, actually. You have to go +through the paper and manually change every occurrence of +\verb|Lemma~\ref{main}| to \verb|Theorem~\ref{main}|. Your editor software may +help with automatic text replacement, but that's no good by itself, +you unfortunately still have to watch out for cases like +\verb|Lemmas \ref{baz-quux} and~\ref{main}|. Needless to say, the whole business +is rather error-prone, and very annoying, especially if you later +decide that 3.15 is, after all, a Lemma, with the prospect of changing +all those references back again. + +The \pkg{theoremref} package is designed to fill this gap in the \LaTeX\ % +automatic reference system. It provides variants of the \cmd{\label} and +\cmd{\ref} commands which automatically supply the correct theorem +environment name into a reference, thus avoiding all the hassle +described above. + + +\section{Basic usage} + +\renewcommand*{\labelenumi}{(\theenumi)} +\begin{enumerate} +\item Put \verb|\usepackage{theoremref}| anywhere in the document preamble. + \pagebreak[2] + +\item For each theorem which you intend to use in the new system, declare + its label by \cmd{\thlabel}\marg{foobar}. For example, +% +\begin{verbatim} + \begin{Lem}\thlabel{exact} + Every projective formula is exact. + \end{Lem} +\end{verbatim} + +\item There are three commands available for producing references to + your theorems: \cmd{\ref}\marg{foo} gives the number, as usual; + \cmd{\thref}\marg{foo} gives the theorem name followed by number; and + \cmd{\thnameref}\marg{foo} gives just the theorem name. Example: + + \begin{tabular}{l@{ $\to$ }l@{}} + \verb|\ref{exact}| & \verb|5.7.7| \\ + \verb|\thref{exact}| & \verb|Lemma~5.7.7| \\ + \verb|\thnameref{exact}| & \verb|Lemma| + \end{tabular} + + The \cmd{\thref} command can handle an arbitrary number of arguments, + separated by commas: + + \begin{tabular}{l@{ $\to$ }l@{}} + \verb|\thref{exact,zorn,main}| & \verb|Lemmas 5.7.7 and~2.1.5 and Theorem~6.6.4| + \end{tabular} +\end{enumerate} + + +\section{Options} + +\begin{itemize} +\item \verb|\usepackage[lowercase]{theoremref}| will set your theorem + references in lowercase, e.\,g., ``lemma 5.7.7''. Note that there is + no provision for capitalization at the beginning of a sentence. + +\item \sloppy \verb|\usepackage[reftex]{theoremref}| provides an alternative + interface to the main commands: you can say \cmd{\th}\cmd{\label}\marg{foo} and + \cmd{\th}\cmd{\ref}\marg{foo} instead of \cmd{\thlabel}\marg{foo} and \cmd{\thref}\marg{foo}. + The effect is that the labelling and referencing commands are + correctly recognized as such by the Emacs reftex package (and, + presumably, other similar editing tools). +\end{itemize} + +\fussy + + +\section{Caveats} + +\begin{itemize} +\item The \cmd{\thlabel} command reuses the slot for page number in the \texttt{.aux} + file. This should do no harm, as the latter is generally useless, I've + never seen anybody refer to a numbered theorem by its page number. But + to be on the safe side, here's an explicit warning: if you declare \meta{foo} + by \cmd{\thlabel}\marg{foo}, you cannot use \cmd{\pageref}\marg{foo} to get its page + number (it will actually give the theorem name). If you absolutely + need both, you can declare two labels for the same theorem: + \cmd{\label}\marg{foo-page}\cmd{\thlabel}\marg{foo-name}. + +\item If \cmd{\thref}\marg{bar} gives you a cryptic result like ``12 3.15'' + instead of the theorem name, you probably forgot to use \cmd{\thlabel} + instead of \cmd{\label} (see the previous point for explanation). Note + that after you switch from one to the other, you may need to \TeX\ the + file twice in order for the change to propagate to the \texttt{.aux} file and + back. + +\item The new referencing commands only work for theorem environments + declared using the \cmd{\newtheorem} command. You \emph{cannot} use them for + e.\,g.\ tables, figures, equations, sections, and other environments. + +\item The implementation depends on some internals of the theorem + typesetting macros. It is compatible with the \pkg{theorem} and + \pkg{amsthm} packages, as well as the default theorem system in base + \LaTeX. It may fail for other theorem-like packages. + + The package is compatible with \pkg{hyperref}, but not with other + packages that change the syntax of \cmd{\newlabel} commands written + to the \texttt{.aux} file. +\end{itemize} + +\section{History} + +\begin{itemize} +\item 2008-05-13: Initial public release. +\item 2013-05-22: Added support for hyperref. +\end{itemize} + +\section{License} + +The \pkg{theoremref} package is dually licensed under GPL or LPPL at your +option: + +Copyright © 2008, 2013 Emil Jeřábek + +This package may be distributed and/or modified under the +conditions of the \LaTeX\ Project Public License, either version 1.3 +of this license or (at your option) any later version. +The latest version of this license is in +\url{http://www.latex-project.org/lppl.txt} +and version~1.3 or later is part of all distributions of \LaTeX\ % +version~2003/12/01 or later. + +This package is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version~2 of the License, or +(at your option) any later version. + +This package is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + +\end{document} diff --git a/macros/latex/contrib/theoremref/theoremref.sty b/macros/latex/contrib/theoremref/theoremref.sty new file mode 100644 index 0000000000..c7d56e3f6a --- /dev/null +++ b/macros/latex/contrib/theoremref/theoremref.sty @@ -0,0 +1,230 @@ +% see the bottom of the file for a description and usage notes +\NeedsTeXFormat{LaTeX2e} +\ProvidesPackage{theoremref} + [2013/05/22 References with automatic theorem names] + +\def\thmref@lc#1{#1} +\DeclareOption{lowercase}{\let\thmref@lc\lowercase} +\DeclareOption{reftex} + {\def\thmref@th#1{\csname th\expandafter\@gobble\string#1\endcsname}} +\ProcessOptions\relax + +%hook in \@thm to get the name +\def\thmref@newthm#1#2{\thmref@lc{\def\thmref@currname{#2}}% + \thmref@oldthm{#1}{#2}} +\def\thmref@amsthm#1#2#3{\thmref@lc{\def\thmref@currname{#3}}% + \thmref@oldthm{#1}{#2}{#3}} + +%\let\thnameref\pageref fails miserably when the ref is undefined +\DeclareRobustCommand\thnameref[1] + {\expandafter\thmref@setref\csname r@#1\endcsname} +\def\thmref@setref#1{\ifx#1\relax?THM?\else\expandafter\@secondoftwo#1\fi} +\def\thmref@sethyp#1{\ifx#1\relax?THM?\else\expandafter\@secondoffive#1\fi} + +%hacked version of \label from the kernel +\DeclareRobustCommand\thlabel[1]{\@bsphack + \protected@write\@auxout{}% + {\string\newlabel{#1}{{\@currentlabel}{\thmref@currname}}}% + \@esphack} + +%... or from hyperref/nameref.sty +\def\thlabel@hyperref#1{% + \@bsphack + \begingroup + \let\label\@gobble + \def\ref{\protect\ref}% + \edef\@currentlabstr{% + \expandafter\strip@prefix\meaning\@currentlabelname + }% + \protected@write\@auxout{}{% + \string\newlabel{#1}{% + {\@currentlabel}% + {\thmref@currname}% <-- + {\expandafter\strip@period\@currentlabstr\relax.\relax\@@@}% + {\@currentHref}{}% + }% + }% + \endgroup + \@esphack +} + +\newif\ifthmref@comma \newif\ifthmref@final \newcount\thmref@num +\DeclareRobustCommand\thref[1]{\let\thmref@last\empty \let\thmref@stack\empty + \let\thmref@head\empty \thmref@commafalse \thmref@finalfalse + \thmref@doref#1,,} +\def\thmref@doref#1,{% + \ifx,#1,\ifthmref@comma\ifthmref@final,\fi\space and \fi + \thmref@commafalse \expandafter\thmref@flush + \else\edef\thmref@this{\thnameref{#1}}% + \ifx\thmref@this\thmref@last + \let\do\relax \edef\thmref@stack{\thmref@stack\do{\thmref@head}}% + \else \thmref@flush \let\thmref@last\thmref@this \fi + \def\thmref@head{#1}\expandafter\thmref@doref\fi} +\def\thmref@flush{% + \ifx\thmref@last\empty\else + \ifthmref@comma, \thmref@finaltrue\fi \thmref@commatrue + \thmref@last \ifx\thmref@stack\empty\else s\fi \thmref@num 0 + \let\do\thmref@one \thmref@stack + \ifcase\thmref@num\or\space and\else\thmref@finaltrue, and\fi + ~$\ref{\thmref@head}$\let\thmref@stack\empty\fi} +\def\thmref@one#1{\ifnum\thmref@num>0,\fi + \space$\ref{#1}$\advance\thmref@num 1\relax} + +\AtBeginDocument{\thmref@setup} +\def\thmref@setup{% + \let\thmref@oldthm\@thm + \@ifpackageloaded{amsthm}{\let\@thm\thmref@amsthm}% + {\let\@thm\thmref@newthm}% + \@ifpackageloaded{hyperref}{% + \expandafter\let\csname thlabel\space\endcsname\thlabel@hyperref + \let\thmref@setref\thmref@sethyp + }\relax + \ifx\thmref@th\@undefined\else\let\th\thmref@th\fi% +} + +\endinput + +package: theoremref + +author: Emil Je\v{r}\'abek (replace spam with cas) + + +INTRODUCTION + +So, you are writting up your math paper or thesis. There is the +all-important Lemma 3.14 referenced from a dozen places throughout +the paper, but you have just realized that its proof requires another +lemma which should go before Lemma 3.14, hence all the references to +Lemma 3.14 have to shift to Lemma 3.15. Now that's quite simple to do: +you just insert the new lemma, and LaTeX relabels the references for you +behind the scenes. Good. + +Then you decide that Lemma 3.15 is, in fact, so important that you +better call it a Theorem rather than just a Lemma, hence all the +references to Lemma 3.15 should change to Theorem 3.15. Now that's +quite simple to do: you just replace the name of the theorem +environment of 3.15, and LaTeX relabels the references for you behind +the scenes... uhhh, except that it does not, actually. You have to go +through the paper and manually change every occurrence of +``Lemma~\ref{main}'' to ``Theorem~\ref{main}''. Your editor software may +help with automatic text replacement, but that's no good by itself, +you unfortunately still have to watch out for cases like ``Lemmas +\ref{baz-quux} and~\ref{main}''. Needless to say, the whole business +is rather error-prone, and very annoying, especially if you later +decide that 3.15 is, after all, a Lemma, with the prospect of changing +all those references back again. + +The theoremref package is designed to fill this gap in the LaTeX +automatic reference system. It provides variants of the \label and +\ref commands which automatically supply the correct theorem +environment name into a reference, thus avoiding all the hassle +described above. + + +BASIC USAGE + +(1) Put ``\usepackage{theoremref}'' anywhere in the document preamble. + +(2) For each theorem which you intend to use in the new system, declare + its label by ``\thlabel{foobar}''. For example, + + \begin{Lem}\thlabel{exact} + Every projective formula is exact. + \end{Lem} + +(3) There are three commands available for producing references to + your theorems: ``\ref{foo}'' gives the number, as usual; + ``\thref{foo}'' gives the theorem name followed by number; and + ``\thnameref{foo}'' gives just the theorem name. Example: + + \ref{exact} -> 5.7.7 + \thref{exact} -> Lemma~5.7.7 + \thnameref{exact} -> Lemma + + The \thref command can handle an arbitrary number of arguments, + separated by commas: + + \thref{exact,zorn,main} -> Lemmas 5.7.7 and~2.1.5 and Theorem~6.6.4 + + +OPTIONS + +- ``\usepackage[lowercase]{theoremref}'' will set your theorem + references in lowercase, e.g., ``lemma 5.7.7''. Note that there is + no provision for capitalization at the beginning of a sentence. + +- ``\usepackage[reftex]{theoremref}'' provides an alternative + interface to the main commands: you can say ``\th\label{foo}'' and + ``\th\ref{foo}'' instead of ``\thlabel{foo}'' and ``\thref{foo}''. + The effect is that the labelling and referencing commands are + correctly recognized as such by the Emacs reftex package (and, + presumably, other similar editing tools). + + +CAVEATS + +- The \thlabel command reuses the slot for page number in the .aux + file. This should do no harm, as the latter is generally useless, I've + never seen anybody refer to a numbered theorem by its page number. But + to be on the safe side, here's an explicit warning: if you declare foo + by ``\thlabel{foo}'', you cannot use ``\pageref{foo}'' to get its page + number (it will actually give the theorem name). If you absolutely + need both, you can declare two labels for the same theorem: + ``\label{foo-page}\thlabel{foo-name}''. + +- If ``\thref{bar}'' gives you a cryptic result like ``12 3.15'' + instead of the theorem name, you probably forgot to use ``\thlabel'' + instead of ``\label'' (see the previous point for explanation). Note + that after you switch from one to the other, you may need to TeX the + file twice in order for the change to propagate to the .aux file and + back. + +- The new referencing commands only work for theorem environments + declared using the ``\newtheorem'' command. You *cannot* use them for + e.g. tables, figures, equations, sections, and other environments. + +- The implementation depends on some internals of the theorem + typesetting macros. It is compatible with the ``theorem'' and + ``amsthm'' packages, as well as the default theorem system in base + LaTeX. It may fail for other theorem-like packages. + + The package is compatible with ``hyperref'', but not with other + packages that change the syntax of ``\newlabel'' commands written + to the aux file. + + +HISTORY + +2008-05-13: Initial public release. +2013-05-22: Added support for hyperref. + + +LICENSE + +The theoremref package is dually licensed under GPL or LPPL at your +option: + +Copyright (C) 2008, 2013 Emil Je\v{r}\'abek + +This package may be distributed and/or modified under the +conditions of the LaTeX Project Public License, either version 1.3 +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 1.3 or later is part of all distributions of LaTeX +version 2003/12/01 or later. + +This package is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This package is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + -- cgit v1.2.3