From be431c807b9733ddfa019bea95fc337a3f324c76 Mon Sep 17 00:00:00 2001 From: Karl Berry Date: Fri, 5 Nov 2010 21:59:53 +0000 Subject: rm sphack, author-written license has nonfree restrictions git-svn-id: svn://tug.org/texlive/trunk@20337 c570f23f-e606-0410-a88d-b1316a301751 --- Master/texmf-dist/doc/latex/sphack/sphack-doc.pdf | Bin 241052 -> 0 bytes Master/texmf-dist/doc/latex/sphack/sphack-doc.tex | 115 ---------------------- 2 files changed, 115 deletions(-) delete mode 100644 Master/texmf-dist/doc/latex/sphack/sphack-doc.pdf delete mode 100644 Master/texmf-dist/doc/latex/sphack/sphack-doc.tex (limited to 'Master/texmf-dist/doc/latex/sphack') diff --git a/Master/texmf-dist/doc/latex/sphack/sphack-doc.pdf b/Master/texmf-dist/doc/latex/sphack/sphack-doc.pdf deleted file mode 100644 index bbd9c827041..00000000000 Binary files a/Master/texmf-dist/doc/latex/sphack/sphack-doc.pdf and /dev/null differ diff --git a/Master/texmf-dist/doc/latex/sphack/sphack-doc.tex b/Master/texmf-dist/doc/latex/sphack/sphack-doc.tex deleted file mode 100644 index 3c685d5c407..00000000000 --- a/Master/texmf-dist/doc/latex/sphack/sphack-doc.tex +++ /dev/null @@ -1,115 +0,0 @@ -\documentclass[pagesize=auto]{scrartcl} - -\usepackage{fixltx2e} -\usepackage{etex} -\usepackage{lmodern} -\usepackage[T1]{fontenc} -\usepackage{textcomp} -\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 - -\addtokomafont{title}{\rmfamily} - -\title{The \pkg{sphack} package\thanks{This manual corresponds to \pkg{sphack.sty}~v1.0, dated~22 May 1998.}} -\author{Oliver Pretzel\thanks{\mail{o.pretzel@ic.ac.uk}}} -\date{22 May 1998} - - -\begin{document} - -\maketitle - -\noindent -Standard \LaTeX\ uses the macros \cmd{\@bsphack}, \cmd{\@esphack}, and \cmd{\@Esphack}, for -inserts into the text that should be invisible. So, for instance a space -before and after a \cmd{\label} command should not result in two spaces in the -output. - -\LaTeX\ deals with this as follows -% -\begin{itemize} -\item in maths mode do nothing, -\item in horizontal mode restore the space factor, -\item if the last thing on the list was a space - add \cmd{\ignorespaces} (and (\cmd{\global})\cmd{\ignore\-true} at the end of an environment), -\item in vertical mode do nothing. -\end{itemize} - -Doing nothing in maths mode is (nearly) harmless because maths mode does its -own spacing (and anyway hidden commands will usually appear only at the start -or end of maths). - -Doing nothing in vertical mode is not harmless. Many invisible commands such -as \cmd{\index} may insert delayed write commands into \TeX's output (so that page -numbers are correctly calculated). These commands can cause vertical space to -accumulate, and may cause a page break; \cmd{\index} is a particular problem in -\LaTeX2.09 since it inserts a delayed write if an index is actually being built -(\cmd{\makeindex} in preamble) but does nothing otherwise. That can change the page -breaks in a document. - -It is not possible to solve this problem completely in \LaTeX\ because \TeX\ does -not remove things from the main vertical list once they have been -contributed. So \LaTeXe\ makes \cmd{\index} insert something into the vertical -list whether the index is being written or not. That has the virtue of -consistancy, but is far from ideal. For instance, an \cmd{\index} immediately after -an \cmd{\item} can cause the page to break between the item label and content. - -\pagebreak[2] - -The code in the \pkg{sphack} package remedies this fault and other common anomalies so that commands -are nearly always invisible in vertical mode as well. It works as follows: -% -\begin{itemize} -\item Rename \LaTeX's dimension \cmd{\@savsk} to \cmd{\@savdim} set a new skip \cmd{\@savsk} - (because we need a true skip and a dimension in vertical mode) - -\item \cmd{\@bsphack} (at start of invisible command) - \begin{itemize} - \item in hmode (non-math) - \begin{enumerate} - \item store spacefactor in \cmd{\@savsf} - \item store lastskip in \cmd{\@savsk} (used to test whether space already present) - \end{enumerate} - - \item in vmode - \begin{enumerate} - \item store lastpenalty in \cmd{\@savsf} - \item store lastskip in \cmd{\@savsk} (used for movement) - \item store previous depth in \cmd{\@savdim} - \item skip back \cmd{\lastskip} - \end{enumerate} - \end{itemize} - -\item \cmd{\@esphack} (at end of invisible command) - \begin{itemize} - \item in hmode (non-math) - \begin{enumerate} - \item set spacefactor = \cmd{\@savsf} - \item if \cmd{\@savsk} > \cmd{\z@} \cmd{\ignorespaces} - \end{enumerate} - - \item in vmode - \begin{enumerate} - \item if in a label, or just after section heading, or if \cmd{\@nobreak}\\ - insert infinite penalty, (to prevent a page break)\\ - else insert penalty \cmd{\@savsf}\\ - endif - \item set previous depth = \cmd{\@savdim} - \item skip \cmd{\@savsk} - \end{enumerate} - \end{itemize} -\end{itemize} -% -Just as in standard \LaTeX, \cmd{\@Esphack} is \cmd{\@esphack} + (\cmd{\global})\cmd{\@ignoretrue}. - -It is not necessary to change any of the label or index macros to fit with -this code. - -\end{document} -- cgit v1.2.3