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

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

1 files changed, 0 insertions, 490 deletions

diff --git a/Master/texmf-dist/tex/latex/ltxmisc/url.sty b/Master/texmf-dist/tex/latex/ltxmisc/url.sty
deleted file mode 100644
index 30baf537521..00000000000
--- a/Master/texmf-dist/tex/latex/ltxmisc/url.sty
+++ /dev/null
@@ -1,490 +0,0 @@
-% 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.
-%
-% A form of \verb 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 may be selected using the \urlstyle command,
-% and new url-like commands can be defined using \urldef.
-%
-% Usage:    Conditions:
-% \url{ }   If the argument contains any "%" or "^^", or ends with
-%           "\", it can't be used in the argument to another command.
-%           The argument must not contain unbalanced braces.
-% \url|  |  ...where "|" is any character not used in the argument and not
-%           "{" or a space.  The same restrictions as above except that the
-%           argument may contain unbalanced braces.
-% \urldef\xyz\url{ }
-% \xyz      a defined-url: "\xyz" can be used anywhere, no matter what
-%           characters it contains.
-% \DeclareUrlCommand\abc{settings}: makes \abc{ } like \url{ }
-%
-% See further instructions after "\endinput"
-%
-
-% default style assignments
-\def\UrlBreaks{\do\.\do\@\do\\\do\/\do\!\do\_\do\|\do\;\do\>\do\]%
- \do\)\do\,\do\?\do\'\do+\do\=\do\#}%
-\def\UrlBigBreaks{\do\:\do@url@hyp}%
-\def\UrlNoBreaks{\do\(\do\[\do\{\do\<}%
-% any ordinary characters that aren't usually:
-\def\UrlOrds{\do\*\do\-\do\~\do\'\do\"\do\-}%
-\def\UrlSpecials{\do\ {\Url@space}\do\%{\Url@percent}\do\^^M{\Url@space}%
-   \Url@force@Tilde}% package option may force faked text-ascii-tilde
-
-\@namedef{Url@OT1encSpecials}{%
-  %  *Some* latin-1 or windows characters that ot1 has elsewhere:  OE  oe  ss
-  \do\^^8c{\mathchar30 }\do\^^9c{\mathchar27 }\do\^^df{\mathchar25 }%
-  \do\~{\lower.45ex\hbox{\m@th$\mathchar126$}}% For tt style
-  % lots more to add, but I should later link into inputenc
-  \do\^^b5{\mu}%
-  \Url@OTnonTT % more for any but typewriter
-  }
-
-\def\Url@OTnonTT{\do\<{\langle}\do\>{\mathbin{\rangle}}\do
-  \_{\_\penalty\@m}\do\|{\mid}\do\{{\lbrace}\do\}{\mathbin{\rbrace}}\do
-  \\{\mathbin{\backslash}}\UrlTildeSpecial}
-
-% *Some* latin-1 or windows characters. Most will pass through safely to T1 enc
-% mu  inverted-?  OE  oe
-% lots more to add, but I should later link into inputenc
-\@namedef{Url@T1encSpecials}{\do\^^b5{\mu}\do\^^bf{\mathchar190 }%
-  \do\^^8c{\mathchar215 }\do\^^9c{\mathchar247 }\do\^^df{\mathchar255 }%
-  \do\^^ff{\mathchar184 }}
-
-\@namedef{Url@LY1encSpecials}{\do\~{\mathchar158 }}
-
-\def\UrlTildeSpecial{\do\~{\raise.45ex\hbox{\m@th$\scriptstyle\sim$}}}
-\let\Url@force@Tilde\relax
-
-\def\url@ttstyle{%
- \@ifundefined{selectfont}{\def\UrlFont{\tt}}{\def\UrlFont{\ttfamily}}}
-
-\def\url@rmstyle{%
- \@ifundefined{selectfont}{\def\UrlFont{\rm}}{\def\UrlFont{\rmfamily}}}
-
-\def\url@sfstyle{%
- \@ifundefined{selectfont}{\def\UrlFont{\sf}}{\def\UrlFont{\sffamily}}}
-
-\def\url@samestyle{\def\UrlFont{}}
-
-\@ifundefined{strip@prefix}{\def\strip@prefix#1>{}}{}
-\@ifundefined{verbatim@nolig@list}{\def\verbatim@nolig@list{\do\`}}{}
-
-% \Url sets up the reading the argument verbatim if possible
-\def\Url{%
- \Url@movingtest
- \ifmmode\@nomatherr$\fi %$
- \let\do\@makeother \dospecials % verbatim catcodes
- \catcode`{\@ne \catcode`}\tw@ % with exceptions
- \catcode`\ =10 % allow "\url {x}"
- \catcode`\#=6  % always # -> ##, so I can later convert ## -> #
- \@ifnextchar\bgroup{\obeyspaces\obeylines\Url@z}\Url@y}
-
-% \Url@y read arguments delimited like |...|, passing to \Url@z
-\def\Url@y#1{\catcode`{11 \catcode`}11\obeyspaces\obeylines
-  \def\@tempa##1#1{\Url@z{##1}}\@tempa}
-
-% \Url@z read arguments delimited like {...}, verbatimizes with \meaning,
-% performs character translations, then invokes the formatter.
-\def\Url@z#1{\toks@{#1}\edef\Url@String{\the\toks@}%
-  \edef\Url@String{\expandafter\strip@prefix\meaning\Url@String}%
-%\if\urldebug \message{------------------------------------------------------}%
-%\message{ \Url@String}\fi
-% \meaning introduces spurious spaces in the text, so it would be nice
-% to preserve the real spaces before \meaning, but that doesn't work --
-% we can only do replacement on streams of non-syntactic characters.
-  \Url@ObeySp % may be no-op; otherwise put ordinary (12) space characters
-%\if\urldebug \message{ \Url@String}\fi
-% we left the catcode of # with its normal value (6) so \meaning
-% doubles it to ##.  Now we convert back to single #.  This allows
-% \url{#} to appear in the arguments of other commands, where we can't
-% make # be an ordinary character.  We make the single # active rather
-% than `other' to support hyperref.sty.
-  \Url@acthash
-%\if\urldebug \message{ \Url@String}\fi
-% Also make % active to support hyperref.
-  \Url@actpercent
-% now do any hyper referencing due to hyperref (or perform a url-def)
-  \Url@HyperHook
-% Now do the formatting in a group (can also have \Url@HyperHook take
-% this as an argument.
-  {\Url@FormatString}%
-  \endgroup}
-
-\let\Url@ObeySp\@empty
-\let\UrlRight\@empty
-\let\UrlLeft\@empty
-\let\Url@HyperHook\@empty
-
-% This is the normal way to format the strings, using math mode.
-\def\Url@FormatString{%
- \UrlFont \Url@MathSetup 
- $\fam\z@ \textfont\z@\font
- \expandafter\UrlLeft\Url@String\UrlRight
- \m@th$%
-% \if\urldebug \showlists \fi 
-}%
-
-\def\Url@MathSetup{%
- \medmuskip\Urlmuskip \thickmuskip\medmuskip \thinmuskip0mu%
- \relpenalty\UrlBigBreakPenalty \binoppenalty\UrlBreakPenalty
- \expandafter\let\expandafter\UrlEncSpecials\csname Url@\f@encoding encSpecials\endcsname
- % Insert test for unknown encodings here \ifx\UrlEncSpecials\relax
- \ifdim\fontdimen\thr@@\font=\z@ \let\Url@OTnonTT\relax \fi
- \@tempcnta\z@ %  \fam\multiply\@tempcnta\@cclvi
- \let\do\set@mathcode \UrlOrds % ordinary characters that were special
- \advance\@tempcnta 8192 \UrlBreaks % bin
- \advance\@tempcnta 4096 \UrlBigBreaks % rel
- \advance\@tempcnta 4096 \UrlNoBreaks % open
- \let\do\set@mathact \UrlSpecials \UrlEncSpecials % active
- \let\do\set@mathnolig \verbatim@nolig@list % prevent ligatures
-}
-
-\def\set@mathcode#1{\count@`#1\advance\count@\@tempcnta
-%\message{Set mathcode of \string #1 (\number`#1) = \number`#1 + \number\@tempcnta. }%
-\mathcode`#1\count@}
-\def\set@mathact#1#2{\mathcode`#1=32768 \begingroup 
-    \lccode`\~`#1\lowercase{\endgroup\def~}{#2}}
-\def\set@mathnolig#1{\ifnum\mathcode`#1<32768
-   \begingroup\lccode`\~`#1\lowercase{\endgroup
-     \edef~}{\mathchar\number\mathcode`#1_{\/}}%
-   \mathcode`#1=32768 \fi}
-
-\def\Url@movingtest{\begingroup
- \ifx\let\HyPsd@LetCommand % we are already in a pdf string!
-  \expandafter\Url@unmove \fi % give the argument and hope for the best
- \let\Url@moving\relax\relax\relax
- \ifx\Url@moving\relax\else \expandafter\Url@unmove \fi
- \endgroup}
-\long\def\Url@unmove#1\Url@y{\endgroup \ifx\protect\relax\else\protect\Url\fi}
-\edef\Url@moving{\csname Url Error\endcsname}
-\expandafter\edef\Url@moving
- {\csname url used in a moving argument.\endcsname}
-\expandafter\expandafter\expandafter \let \Url@moving\@undefined
-
-\def\urldef#1#2{\begingroup \setbox\z@\hbox\bgroup
-  \def\Url@HyperHook##1\endgroup{\Url@def{#1}{#2}}%
-  % Because hyperref breaks \urldef and does not define its own (Grrrr!)...
-  \def\url@##1{\egroup\endgroup\DeclareRobustCommand#1{#2{##1}}}%
- #2}
-\def\Url@def#1#2{%
-   \toks0\expandafter{\Url@String}%
-   \protected@edef\Url@String{\Url@String}%
-   \toks1\expandafter{\Url@String}%
-   \edef\Url@String{\endgroup\egroup\endgroup\def
-     \expandafter\noexpand\csname\expandafter\@gobble\string#1 \endcsname
-     {\noexpand\Url@eitherdef{\the\toks1}{\noexpand#2{\the\toks0}}}}%
-   \Url@String
-   \edef#1{\noexpand\protect
-      \expandafter\noexpand\csname\expandafter\@gobble\string#1 \endcsname}%
-  }
-\def\Url@eitherdef{\ifx\let\HyPsd@LetCommand % we are already in a pdf string!
-  \expandafter\@firstoftwo \else \expandafter\@secondoftwo \fi}
-
-\def\urlstyle#1{\expandafter\protect\csname url@#1style\endcsname}
-
-\def\DeclareUrlCommand#1#2{\def#1{\leavevmode\begingroup #2\Url}}
-
-% Sample (and default) configuration:
-%
-\DeclareUrlCommand\url{}
-\urlstyle{tt}
-%
-\newmuskip\Urlmuskip \Urlmuskip=0mu
-\mathchardef\UrlBreakPenalty=\binoppenalty
-\mathchardef\UrlBigBreakPenalty=\relpenalty
-%
-% picTeX defines \path, so declare it optionally:
-\@ifundefined{path}{\DeclareUrlCommand\path{\urlstyle{tt}}}{}
-%
-% too many styles define \email like \address, so I will not define it.
-% \DeclareUrlCommand\email{\urlstyle{rm}}
-
-% Process LaTeX \package options
-%
-\let\Url@sppen\@M
-\def\Url@space{\penalty\Url@sppen}
-\def\do@url@hyp{}% by default, no breaks after hyphens
-
-\@ifundefined{ProvidesPackage}{
-}{\ProvidesPackage
- {url}[2006/04/12 \space ver 3.3 \space Verb mode for urls, etc.]
-\DeclareOption{hyphens}{\def\do@url@hyp{\do\-}}% allow breaks after hyphens
-\DeclareOption{obeyspaces}{\let\Url@ObeySp\relax}% a flag for later
-\DeclareOption{spaces}{\def\Url@sppen{\UrlBreakPenalty}}
-\DeclareOption{LY1}{}
-\DeclareOption{T1}{}
-\DeclareOption{allowmove}{\let\Url@moving\@empty}
-\DeclareOption{lowtilde}{%
-  \def\UrlTildeSpecial{\do\~{\raise.2ex\hbox{\m@th$\scriptstyle\sim$}}}
-  \let\Url@force@Tilde\UrlTildeSpecial
-}
-\ProcessOptions\relax
-\ifx\Url@ObeySp\relax % [obeyspaces] was declared
-  \begingroup \lccode`+=32 \lowercase
-   {\endgroup \def\Url@ObeySp{\Url@Edit\Url@String{ }{+}}}
-   \def\Url@space{\penalty\Url@sppen\ }
-\fi
-}
-\ifx\f@encoding\undefined \def\f@encoding{OT1}\fi
-
-\begingroup
-% \Url@acthash:    convert `other' (doubled) ## to active #
-% \Url@actpercent: convert `other' % to active %
- \lccode`+=`\# \lccode`\~=`\#
-  \lowercase {\long\gdef\Url@acthash{\Url@Edit\Url@String{++}{~}%
-     \ifnum\mathcode`\#<32768 \def~{\#}\fi}}%
- \lccode`+=`\% \lccode`\~=`\%
-  \lowercase {\long\gdef\Url@actpercent{\Url@Edit\Url@String{+}{~}%
-    \ifnum\mathcode`\%<32768 \def~{\%}\fi}}%
- \catcode13=12 %
- \gdef\Url@percent{\@ifnextchar^^M{\@gobble}{\mathbin{\mathchar`\%}}}%
-\endgroup%
-
-%   Edit macro #1 changing all appearances of pattern #2 to replacement #3.
-%   The replacement is recursive, so don't put the search pattern into the
-%   replacement text!
-
-{ \catcode`Q=3
-
-\gdef\Url@Edit#1#2#3{%
- \begingroup % \tracingall
- \def\DOE@a{\endgroup\def#1}% Just so I can \expandafter it safely.
- \def\DOE@b##1#2##2Q##3{\@ifblank{##2}% if finished,
-   {\DOE@c ##1Q}% then remove \@empty's and redefine macro
-   {\DOE@b##1##3##2Q{##3}}% else, re-iterate
- }%  the leading \@empty preserves braces, as does the trailing pattern:
- \expandafter\DOE@b\expandafter\@empty #1\@empty#2Q{#3}}
-\gdef\DOE@c#1\@empty Q{\expandafter\DOE@a\expandafter{#1}}
-%
-%  \@ifblank (LaTeX syntax) --- checks if parameter is blank (Spaces
-%     count as blank) use \@ifblank{#1}{true case}{false case} etc
-\long\gdef\@ifblank#1{\@Ifbl@nk#1QQ\@secondoftwo\@firstoftwo!}%
-\long\gdef\@Ifbl@nk#1#2Q#3#4#5!{#4}
-
-} % restore Q catcode
-
-
-%\ifx\urldebug\@undefined \def\urldebug{01}\fi
-
-\endinput
-%
-% url.sty  ver 3.3    12-Apr-2006   Donald Arseneau   asnd@triumf.ca
-%
-% This package defines "\url", a form of "\verb" that allows linebreaks,
-% and can often be used in the argument to another command.  It can be
-% configured to print in different formats, and is particularly useful for
-% hypertext links, email addresses, directories/paths, etc.  The font may
-% be selected using the "\urlstyle" command and pre-defined text can be
-% stored with the "\urldef" command. New url-like commands can be defined,
-% and a "\path" command is provided this way.
-%
-% Usage:    Conditions:
-% \url{ }   If the argument contains any "%", "#", or "^^", or ends with
-%           "\", it can't be used in the argument to another command.
-%           The argument must not contain unbalanced braces.
-% \url|  |  ...where "|" is any character not used in the argument and not
-%           "{" or a space.  The same restrictions as above except that the
-%           argument may contain unbalanced braces.
-% \xyz      for "\xyz" a defined-url;  this can be used anywhere, no matter
-%           what characters it contains.
-%
-% The "\url" command is fragile, and its argument is likely to be very
-% fragile, but a defined-url is robust.
-%
-% Package Option:  obeyspaces
-% Ordinarily, all spaces are ignored in the url-text.  The "[obeyspaces]"
-% option allows spaces, but may introduce spurious spaces when a url
-% containing "\" characters is given in the argument to another command.
-% So if you need to obey spaces you can say "\usepackage[obeyspaces]{url}",
-% and if you need both spaces and backslashes, use a `defined-url' for
-% anything with "\".
-%
-% Package Option:  hyphens
-% Ordinarily, breaks are not allowed after "-" characters because this
-% leads to confusion. (Is the "-" part of the address or just a hyphen?)
-% The package option "[hyphens]" allows breaks after explicit hyphen
-% characters.  The "\url" command will *never ever* hyphenate words.
-%
-% Package Option:  spaces
-% Likewise, breaks are not usually allowed after spaces under the
-% "[obeyspaces]" option, but giving the options "[obeyspaces,spaces]"
-% will allow breaks at those spaces. (Note that it seems logical to
-% allow the sole option "[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.)
-%
-% Package Option:  lowtilde
-% Normal treatment of the ~ character is to use the font's "\textasciitilde"
-% character, if it has one (or claims to).  Otherwise, the character is
-% faked using a mathematic "\sim".  The "[lowtilde]" option causes a
-% faked character to be used always (and a bit lower than usual).
-%
-% Defining a defined-url:
-% Take for example the email address "myself%node@gateway.net" which could
-% not be given (using "\url" or "\verb") in a caption or parbox due to the
-% percent sign.  This address can be predefined with
-%    \urldef{\myself}\url{myself%node@gateway.net}   or
-%    \urldef{\myself}\url|myself%node@gateway.net|
-% and then you may use "\myself" instead of "\url{myself%node@gateway.net}"
-% in an argument, and even in a moving argument like a caption because a
-% defined-url is robust.
-%
-% Style:
-% You can switch the style of printing using "\urlstyle{tt}", where "tt"
-% can be any defined style.  The pre-defined styles are "tt", "rm", "sf",
-% and "same" which all allow the same linebreaks but different fonts --
-% the first three select a specific font and the "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 "\url"
-% command follows whatever the currently-set style dictates.
-%
-% 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:
-%
-%    \DeclareUrlCommand\email{\urlstyle{rm}}
-%    \DeclareUrlCommand\directory{\urlstyle{tt}}
-%
-% In fact, the "\directory" example is exactly the "\path" definition which
-% is pre-defined in the package.  If you look above, you will see that "\url"
-% is defined with
-%    \DeclareUrlCommand\url{}
-% I.e., using whatever "\urlstyle" and other settings are already in effect.
-%
-% You can make a defined-url for these other styles, using the usual
-% "\urldef" command as in this example:
-%
-%    \urldef{\myself}{\email}{myself%node.domain@gateway.net}
-%
-% which makes "\myself" act like "\email{myself%node.domain@gateway.net}",
-% if the "\email" command is defined as above.  The "\myself" command
-% would then be robust.
-%
-% Defining styles:
-% Before describing how to customize the printing style, it is best to
-% mention something about the unusual implementation of "\url".  Although
-% the material is textual in nature, and the font specification required
-% is a text-font command, the text is actually typeset in *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 "\UrlFont", "\UrlBreaks", "\UrlSpecials" etc.
-% directly in the document, but it is better to define a new `url-style'
-% (following the example of "\url@ttstyle" and "\url@rmstyle") which defines
-% all of "\UrlBigbreaks", "\UrlNoBreaks", "\UrlBreaks", "\UrlSpecials", and
-% "\UrlFont".
-%
-% Changing font:
-% The "\UrlFont" command selects the font.  The definition of "\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 "\def\UrlFont{\tt}".
-% Depending on the font selected, some characters may need to be defined
-% in the "\UrlSpecials" list because many fonts don't contain all the
-% standard input characters.
-%
-% Changing linebreaks:
-% The list of characters that allow line-breaks is given by "\UrlBreaks"
-% and "\UrlBigBreaks", which have the format "\do\c" for character "c".
-% The differences are that `BigBreaks' usually have a lower penalty and have
-% different breakpoints when in sequence (as in "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 *pair*; there will be no
-% break after a `Break' character if a `BigBreak' follows.  In the case
-% of "http://" it doesn't matter whether ":" is a `Break' or `BigBreak' --
-% the breaks are the same in either case; but for DECnet nodes with "::"
-% it is important to prevent breaks *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 "\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 "\UrlSpecials".  This is used in the rm and sf styles for OT1 font
-% encoding to handle several characters that are not present in those
-% computer-modern style fonts.  See the definition of "\Url@do", which
-% is used by both "\url@rmstyle" and "\url@sfstyle"; it handles missing
-% characters via "\UrlSpecials".  The nominal format for setting each
-% special character "c" is: "\do\c{<definition>}", but you can include
-% other definitions too.
-%
-% If all this sounds confusing ... 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 "+=(a".
-%
-% You can allow some spacing around the breakable characters by assigning
-%    \Urlmuskip = 0mu plus 1mu
-% You can change the penalties used for BigBreaks and Breaks by assigning
-%    \mathchardef\UrlBreakPenalty=100 \mathchardef\UrlBigBreakPenalty=100
-% The default penalties are "\binoppenalty" and "\relpenalty".  These have
-% such odd non-LaTeX syntax because I don't expect people to need to
-% change them often.
-%
-% Yet more flexibility:
-% You can also customize the verbatim text by defining "\UrlRight" and/or
-% "\UrlLeft", e.g., for ISO formatting of urls surrounded by "<  >", define
-%
-%    \DeclareUrlCommand\url{\def\UrlLeft{<url:\ }\def\UrlRight{>}%
-%        \urlstyle{tt}}
-%
-% The meanings of "\UrlLeft" and "\UrlRight" are *not* reproduced verbatim.
-% This lets you use formatting commands there, but you must be careful not
-% to use TeX's special characters ("\^_%~#$&{}" etc.) improperly.
-% You can also define "\UrlLeft" to reprocess the verbatim text, but the
-% format of the definition is special:
-%
-%    \def\UrlLeft#1\UrlRight{ ... do things with #1 ... }
-%
-% Yes, that is "#1" followed by "\UrlRight" then the definition.  For
-% example, to put a hyperTeX hypertext link in the DVI file:
-%
-%    \def\UrlLeft#1\UrlRight{\special{html:<a href="#1">}#1\special{html:</a>}}
-%
-% Using this technique, 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
-% "\UrlBreaks" are empty.
-%
-% 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
-
-Test file integrity:  ASCII 32-57, 58-126:  !"#$%&'()*+,-./0123456789
-:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~
-