new latex package url, now with separate doc (22jan10)

git-svn-id: svn://tug.org/texlive/trunk@16814 c570f23f-e606-0410-a88d-b1316a301751

4 files changed, 318 insertions, 0 deletions

diff --git a/Master/texmf-dist/doc/latex/url/url.pdf b/Master/texmf-dist/doc/latex/url/url.pdf
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diff --git a/Master/texmf-dist/doc/latex/url/url.tex b/Master/texmf-dist/doc/latex/url/url.tex
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+\documentclass[a4paper]{article}
+\usepackage[T1]{fontenc}
+\usepackage{lmodern}
+\usepackage{miscdoc,url,booktabs}
+\begin{document}
+\title{\texttt{url.sty} version 3.3}
+\date{2006-04-12, documentation 2010-01-20}
+\author{Donald Arseneau\\
+  edited as a \LaTeX{} document by Robin Fairbairns}
+\maketitle
+
+% url.sty  ver 3.3    12-Apr-2006   Donald Arseneau   asnd@triumf.ca
+% Copyright 1996-2006 Donald Arseneau,  Vancouver, Canada.
+% This program can be used, distributed, and modified under the terms
+% of the LaTeX Project Public License.
+
+The package defines a form of \cs{verb} command that allows linebreaks
+at certain characters or combinations of characters, accepts
+reconfiguration, and can usually be used in the argument to another
+command.  It is intended for email addresses, hypertext links,
+directories/paths, etc., which normally have no spaces.  The font used
+may be selected using the \cs{urlstyle} command, and new url-like
+commands may be defined using \cs{urldef}.
+
+\begin{center}
+  \begin{tabular}{lp{3.5in}}
+    \toprule 
+    Usage &    Conditions \\
+    \midrule
+    \verb+\url{ }+ & If the argument contains any ``\verb+%+'',
+                       ``\verb+#+'' or ``\verb+^^+'', or ends with
+                       ``\cs{}'', it can't be used in the argument to
+                       another command.\\
+                     & The argument must not contain unbalanced braces.\\
+    \verb+\url|  |+ & where ``\texttt{|}'' is any character not used
+                        in the argument and not ``\verb+{+'' or a
+                        space.  The same restrictions apply as above
+                        except that the argument may contain
+                        unbalanced braces.\\ 
+    \cs{xyz} & for ``\cs{xyz}'' a defined-url; such a command can be
+               used anywhere, no matter what characters it contains. \\
+      \bottomrule
+    \end{tabular}
+  \end{center}
+
+The ``\cs{url}'' command is fragile, and its argument is likely to be
+very fragile, but a defined-url is robust.
+
+\section{Package options}
+
+\newitem Package Option:  \texttt{obeyspaces}
+
+Ordinarily, all spaces are ignored in the url-text.  The
+``\texttt{[obeyspaces]}'' option allows spaces, but may introduce
+spurious spaces when a url containing ``\cs{}'' characters is given in
+the argument to another command. 
+
+So if you need to obey spaces you can say
+``\cs{usepackage}\texttt{[obeyspaces]\char`\{url\char`\}}'', and if
+you need both spaces and backslashes, use a defined-url.
+
+\newitem Package Option:  \texttt{hyphens}
+
+Ordinarily, breaks are not allowed after ``\texttt{-}'' characters
+because this leads to confusion.  (Is the ``\texttt{-}'' part of the
+address or just a hyphen?)
+
+The package option ``\texttt{[hyphens]}'' allows breaks after explicit
+hyphen characters.  The \cs{url} command will \textbf{never ever}
+hyphenate words.
+
+\newitem Package Option:  \texttt{spaces}
+
+Likewise, breaks are not usually allowed after spaces under the
+``\texttt{[obeyspaces]}'' option, but if you give the options
+``\texttt{[obeyspaces,spaces]}'', \cs{url} will allow breaks at those
+spaces.
+\begin{quote}
+  Note that it seems logical to allow the sole option
+  ``\texttt{[spaces]}'' to let input spaces indicate break points, but
+  not to display them in the output.  This would be easy to implement,
+  but is left out to avoid(?) confusion.
+\end{quote}
+
+\newitem Package Option:  \texttt{lowtilde}
+
+Normal treatment of the \verb+~+ character is to use the font's
+``\cs{textasciitilde}'' character, if it has one (or claims to).
+Otherwise, the character is faked using a mathematical ``\cs{sim}''.
+The ``\texttt{[lowtilde]}'' option causes a faked character to be used
+always (and a bit lower than usual).
+
+\section{Defining a defined-url}
+
+Take for example the email address ``\url{myself%node@gateway.net}"
+which could not be given (using ``\cs{url}'' or ``\cs{verb}'') in a
+caption or parbox due to the percent sign.  This address can be
+predefined with
+\begin{quote}
+  \verb|\urldef{\myself}\url{myself%node@gateway.net}| or\\
+  \verb+\urldef{\myself}\url|myself%node@gateway.net|+
+\end{quote}
+and then you may use ``\cs{myself}'' instead of
+``\verb+\url{myself%node@gateway.net}+''
+in an argument, and even in a moving argument like a caption because a
+defined-url is robust.
+
+\section{Style}
+
+You can switch the style of printing using ``\verb+\urlstyle{xx}+'',
+where ``\emph{\texttt{xx}}'' can be any defined style.  The
+pre-defined styles are ``\texttt{tt}'', ``\texttt{rm}'',
+``\texttt{sf}'' and ``\texttt{same}'' which all allow the same
+linebreaks but use different fonts~--- the first three select a
+specific font and the ``\texttt{same}'' style uses the current text
+font.  You can define your own styles with different fonts and/or
+line-breaking by following the explanations below.  The ``\cs{url}''
+command follows whatever the currently-set style dictates.
+
+\section{Alternate commands}
+
+It may be desireable to have different things treated differently, each
+in a predefined style; e.g., if you want directory paths to always be
+in typewriter and email addresses to be roman, then you would define new
+url-like commands as follows:
+\begin{quote}
+\begin{verbatim}
+\DeclareUrlCommand\email{\urlstyle{rm}}
+\DeclareUrlCommand\directory{\urlstyle{tt}}
+\end{verbatim}
+\end{quote}
+
+In fact, this \cs{directory} example is exactly the \cs{path}
+definition which is pre-defined in the package.  If you look above,
+you will see that \cs{url} is defined with
+\begin{quote}
+\begin{verbatim}
+\DeclareUrlCommand\url{}
+\end{verbatim}
+\end{quote}
+I.e., using whatever \cs{urlstyle} and other settings are already in
+effect.
+
+You can make a defined-url for these other styles, using the usual
+\cs{urldef} command as in this example:
+\begin{quote}
+\begin{verbatim}
+\urldef{\myself}{\email}{myself%node.domain@gateway.net}
+\end{verbatim}
+\end{quote}
+which makes \cs{myself} act like
+\verb+\email{myself%node.domain@gateway.net}+,
+if the \cs{email} command is defined as above.  The \cs{myself}
+command would then be robust.
+
+\section{Defining styles}
+
+Before describing how to customize the printing style, it is best to
+mention something about the unusual implementation of \cs{url}.  Although
+the material is textual in nature, and the font specification required
+is a text-font command, the text is actually typeset in \emph{math} mode.
+This allows the context-sensitive linebreaking, but also accounts for
+the default behavior of ignoring spaces.  Now on to defining styles.
+
+To change the font or the list of characters that allow linebreaks, you
+could redefine the commands \cs{UrlFont}, \cs{UrlBreaks},
+\cs{UrlSpecials}, etc., directly in the document, but it is better to
+define a new `url-style' (following the example of \cs{url@ttstyle}
+and \cs{url@rmstyle}) which defines all of \cs{UrlBigbreaks},
+\cs{UrlNoBreaks}, \cs{UrlBreaks}, \cs{UrlSpecials}, and \cs{UrlFont}.
+
+\subsection{Changing font}
+The \cs{UrlFont} command selects the font.  The definition of
+\cs{UrlFont} done by the pre-defined styles varies to cope with a
+variety of \LaTeX{} font selection schemes, but it could be as simple
+as \verb+\def\UrlFont{\tt}+.  Depending on the font selected, some
+characters may need to be defined in the \cs{UrlSpecials} list because
+many fonts don't contain all the standard input characters.
+
+\subsection{Changing linebreaks}
+The list of characters that allow line-breaks is given by
+\cs{UrlBreaks} and \hspace{1in}\penalty-1\hspace{-1in}
+\cs{UrlBigBreaks}, which have the format
+\cs{do}\cs{c} for each character \texttt{c}.
+
+The differences are that `BigBreaks' usually have a lower penalty and
+have different breakpoints when in sequence (as in \texttt{http://}):
+`BigBreaks' are treated as mathrels while `Breaks' are mathbins (see
+The TeXbook, p.170). In particular, a series of `BigBreak' characters
+will break at the end and only at the end; a series of `Break'
+characters will break after the first and after every following
+\emph{pair}; there will be no break after a `Break' character if a
+`BigBreak' follows.  In the case of \texttt{http://} it doesn't matter
+whether \texttt{:"} is a `Break' or `BigBreak'~--- the breaks are the
+same in either case; but for \emph{DECnet} nodes with \texttt{::} it
+is important to prevent breaks \emph{between} the colons, and that is
+why colons are `BigBreaks'.
+
+It is possible for characters to prevent breaks after the next
+following character (I use this for parentheses).  Specify these in
+\cs{UrlNoBreaks}.
+
+You can do arbitrarily complex things with characters by making them
+active in math mode (mathcode hex-8000) and specifying the
+definition(s) in \cs{UrlSpecials}.  This is used in the \texttt{rm}
+and \texttt{sf} styles for OT1 font encoding to handle several
+characters that are not present in those computer-modern style fonts.
+See the definition of \cs{Url@do}, which is used by both
+\cs{urlrmstyle} and \cs{url@sfstyle}; it handles missing characters
+via \cs{UrlSpecials}.  The nominal format for setting each special
+character \texttt{c} is: \verb+\do\c{+\meta{definition}\verb+}+, but
+you can include other definitions too.
+
+If all this sounds confusing~\dots{} well, it is!  But I hope you
+won't need to redefine breakpoints~--- the default assignments seem to
+work well for a wide variety of applications.  If you do need to make
+changes, you can test for breakpoints using regular math mode and the
+characters \texttt{+=(a}. 
+
+You can allow some spacing around the breakable characters by assigning
+\begin{quote}
+\begin{verbatim}
+\Urlmuskip = 0mu plus 1mu
+\end{verbatim}
+\end{quote}
+You can change the penalties used for BigBreaks and Breaks by assigning
+\begin{quote}
+\begin{verbatim}
+\mathchardef\UrlBreakPenalty=100
+\mathchardef\UrlBigBreakPenalty=100
+\end{verbatim}
+\end{quote}
+The default penalties are \cs{binoppenalty} and \cs{relpenalty}.
+These have such odd non-\LaTeX{} syntax because I don't expect people
+to need to change them often.
+
+\section{Yet more flexibility}
+You can also customize the verbatim text by defining \cs{UrlRight}
+and/or \cs{UrlLeft}, e.g., for ISO formatting of urls surrounded by
+\verb+<  >+, define
+\begin{quote}
+\begin{verbatim}
+\DeclareUrlCommand\url{\def\UrlLeft{<url:\ }\def\UrlRight{>}%
+    \urlstyle{tt}}
+\end{verbatim}
+\end{quote}
+The meanings of \cs{UrlLeft} and \cs{UrlRight} are \emph{not}
+reproduced verbatim.  This lets you use formatting commands there, but
+you must be careful not to use TeX's special characters
+(\verb+\^_%~#$&{}+ etc.) improperly.  You can also define \cs{UrlLeft}
+to reprocess the verbatim text, but the format of the definition is special:
+\begin{quote}
+\begin{verbatim}
+\def\UrlLeft#1\UrlRight{ ... do things with #1 ... }
+\end{verbatim}
+\end{quote}
+Yes, that is \verb+#1+ followed by \cs{UrlRight} then the definition.  For
+example, to put a hyperTeX hypertext link in the DVI file:
+\begin{quote}
+\begin{verbatim}
+\def\UrlLeft#1\UrlRight{\special{html:<a href="#1">}#1\special{html:</a>}}
+\end{verbatim}
+\end{quote}
+Using this technique, \path{url.sty} can provide a convenient
+interface for performing various operations on verbatim text.  You
+don't even need to print out the argument!  For greatest efficiency in
+such obscure applications, you can define a null url-style where all
+the lists like \cs{UrlBreaks} are empty.
+
+
+\noindent\begin{verbatim}
+%
+% Revision History:
+% ver 1.1 6-Feb-1996:
+% Fix hyphens that wouldn't break and ligatures that weren't suppressed.
+% ver 1.2 19-Oct-1996:
+% Package option for T1 encoding; Hooks: "\UrlLeft" and "\UrlRight".
+% ver 1.3 21-Jul-1997:
+% Prohibit spaces as delimiter characters; change ascii tilde in OT1.
+% ver 1.4 02-Mar-1999:
+% LaTeX license; moving-argument-error
+% ver 1.5 28-Mar-1999:
+% possibility of spacing around break characters; re-settable penalties
+% ver 1.6 20-Jun-2002:
+% un-double #, fix obeyed-spaces, ignore trailing %, hook for hyperref
+% (\Url@HyperHook), no macros in pre-processed url string (in \Url@String),
+% limit catcode change of ~.
+% ver 3.0 June 2003/Nov 2003:
+% \DeclareUrlCommand; make font encoding automatic (only a few inputenc characters
+% are supported yet - needs refactoring); reverse penalties. 
+% ver 3.1 Mar 2004:
+% Remove spurious spaces in \url@XXstyle commands.
+% ver 3.2 June 2005:
+% Fix cmsy-symbols in tt bug (from 3.0); LY1 encoding bug; Enable plain
+% with miniltx (again); Define the \urldef for hyperref; Lower "sim" tilde
+% a little; fix \lowercase error in \UrlSpecials handling.
+% ver 3.3 April 2006:
+% Fix some encoding bugs and remove 8-bit characters.  lowtilde option
+% The End
+\end{verbatim}
+\end{document}
+
+Test file integrity:  ASCII 32-57, 58-126:  !"#$%&'()*+,-./0123456789
+:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~
+
+
+%%% Local Variables: 
+%%% mode: latex
+%%% TeX-master: t
+%%% End: 
diff --git a/Master/texmf-dist/tex/latex/url/miscdoc.sty b/Master/texmf-dist/tex/latex/url/miscdoc.sty
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+\ProvidesPackage{miscdoc}[2010/01/20 macros for documenting latex/misc pkgs]
+
+% T1 encoding assumed
+\newcommand\cs[1]{\texttt{\char`\\#1}}
+
+\newcommand\newitem{\par\addvspace{1ex}\noindent}
+
+\newcommand\meta[1]{\ensuremath{\langle}\emph{#1}\ensuremath{\rangle}}
diff --git a/Master/texmf-dist/tex/latex/ltxmisc/url.sty b/Master/texmf-dist/tex/latex/url/url.sty
index 30baf537521..30baf537521 100644
--- a/Master/texmf-dist/tex/latex/ltxmisc/url.sty
+++ b/Master/texmf-dist/tex/latex/url/url.sty