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authorKarl Berry <karl@freefriends.org>2010-01-30 00:26:14 +0000
committerKarl Berry <karl@freefriends.org>2010-01-30 00:26:14 +0000
commit22a14624ae5b1e0752b212c51746ee7add2672b6 (patch)
tree46f02e601db5c5f1bfbdb02603524ea00557bbe7 /Master/texmf-dist/tex/latex/ltxmisc
parenta6eeaf899a64dcd37c685f4d6225be65e5577f79 (diff)
ulem now its own generic package (29jan10)
git-svn-id: svn://tug.org/texlive/trunk@16866 c570f23f-e606-0410-a88d-b1316a301751
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-%
-% U L E M . S T Y [2000-05-26]
-%
-% A style file to provide various types of underlining that can stretch
-% between words and be broken across lines. Use with LaTeX or plain TeX.
-% In LaTeX this style replaces italics with underlining in \em-phasized text.
-% It is most suitable for simple text such as {\em ibid.} or {\em \LaTeX:
-% A Document Preparation System\/} that may need to be underlined in a
-% manuscript submitted for publication. This is ONLY to be used when emphasis
-% is delimited by braces. A declaration \normalem (or the \usepackage
-% option "normalem") restores the normal \em behavior.
-%
-% Full instructions appear after \endinput. In summary:
-% \uline{important} underlined text
-% \uuline{urgent} double-underlined text
-% \uwave{boat} wavy underline
-% \sout{wrong} line drawn through word
-% \xout{removed} marked over with //////.
-% {\em phasized\/} | In LaTeX, by default, these are underlined; use
-% \emph{asized} | \normalem or [normalem] to restore italics
-% \useunder{\uwave}{\bfseries}{\textbf}
-% use wavy underline in place of bold face
-%
-% Copyright (c) 1989-2000 by Donald Arseneau
-%
-% These definitions may be freely transmitted, reproduced, or modified
-% provided that this notice is left intact.
-
-% Defend against multiple loading.
-\expandafter \ifx \csname UL@box\endcsname \relax \else
- \typeout{ulem.sty refuses to load twice. }\endinput \fi
-
-% Set catcode of @ in case it isn't a "letter" already
-\chardef\ULthickness\catcode\string`\@ % hold catcode temporarily
-\catcode\string`\@=11
-
-\def\uline{\relax \ifmmode\expandafter\underline
- \else \bgroup\expandafter\ULset\fi}
-
-\newbox\UL@box
-\newbox\UL@hyphenbox
-\newskip\UL@skip
-\newtoks\UL@hook
-
-\newcount\UL@pe
-\let\LA@space\ \let\LA@hskip\hskip
-
-\def\UL@end *{\relax\relax}% something harmless unlikely to be found elsewhere
-
-% For regular underlines, set the depth based on the font, or retain
-% preset value.
-\def\ULset{\ifdim\ULdepth=\maxdimen
- \setbox\UL@box\hbox{(j}\ULdepth\dp\UL@box\advance\ULdepth.4\p@\fi
- \def\UL@leadtype{\leaders \hrule \@height\dimen@ \@depth\ULdepth}%
- \ifmmode \ULdepth-4\p@ \fi
- \dimen@-\ULdepth \advance\dimen@\ULthickness \ULon}
-
-% \ULon simply calls \UL@on (possibly \UL@on=\UL@onin) for text mode, but
-% \UL@onmath if it is math mode.
-\def\ULon{\ifmmode \expandafter\UL@onmath\else \expandafter\UL@on\fi}
-
-% \UL@on sets the engine of underline running, and tells it
-% where to stop.
-\def\UL@on#1{\leavevmode\UL@ender \let\UL@on\UL@onin
- \everymath{\UL@hrest}\everyvbox{\UL@hrest}\let\hskip\UL@hskip
- \let\\\UL@cr \let\-\UL@dischyp \let\newline\UL@newline \let\ \UL@space
- \def\hfil{\hskip\z@ plus1fil\relax}\def\hfill{\hskip\z@ plus1fill\relax}%
- \def\hss{\hskip\z@ plus1filminus1fil\relax}\let\penalty\UL@penalty
- \the\UL@hook
- \UL@word\@empty#1\xdef\UL@spfactor{\the\spacefactor} \UL@end * }
-
-% This is what \ULon does when it appears nested in an inner place.
-\def\UL@onin#1{\leavevmode\UL@ender % when nested, do multiple underlining
- \dimen@\ULthickness \advance\ULdepth\thr@@\dimen@ \advance\dimen@-\ULdepth
- \setbox\UL@box\hbox{{#1}}\let\UL@start\relax\UL@putbox\egroup}
-% \UL@putbox is disabled in inner mode, so re-enable it by changing \UL@start
-% \UL@hrest is implicit due to \everyhbox
-
-% This is what \ULon does in math mode.
-\def\UL@onmath#1{\UL@ender\mathord{\UL@hrest\mathop{\kern\z@#1}\limits\sb
- {\UL@leadtype\LA@hskip\p@ plus1fill}}\egroup}
-
-\def\UL@unegroup{}
-\gdef\UL@ender{}
-% end-brace matching hack for when command is used as a font declaration:
-\def\UL@swender{\ifnum`{=\z@\fi\aftergroup}\gdef\UL@ender{}}
-
-% must expand to nothing outside the ifs for syntactical spaces to work.
-% the \expandafters get rid of the \@empty inserted at the beg. of word
-\def\UL@word#1 {\expandafter\UL@start#1 %
- \expandafter\ifx\expandafter\UL@end#1\egroup\egroup
- \unskip \unskip \unskip % remove extra leader at end
- \spacefactor\UL@spfactor \let\UL@word\egroup
- \else % not finished
- \ifmmode\else \ifdim\lastskip=\z@\else % allow syntactical spaces
- \global\UL@skip\lastskip \unskip
- \UL@stop \UL@leaders
- \fi\fi
- \fi \UL@word\@empty}% \@empty preserves braces in param
-
-\def\UL@start{\setbox\UL@box\hbox\bgroup\everyhbox{\UL@hrest}%
-% the following are to cope with stops (\ ,\- etc) within extra braces
- \let\UL@start\@empty \def\UL@unegroup{\bgroup\bgroup}\let\UL@leadtype\@empty
- \bgroup \kern-3sp\kern3sp % kerns so I can test for beginning of list
- \if@ignore \global\@ignorefalse \ignorespaces \fi}
-
-\def\UL@stop{\global\UL@pe\lastpenalty \unpenalty % penalty in \UL@pe
- \ifnum\lastkern=\thr@@ \egroup\egroup % Nothing in hbox...but make sure:
- \ifdim\wd\UL@box=\z@ \else \UL@putbox \fi % something in box so print it
- \else \egroup\egroup \UL@putbox % something in box so print it
- \fi \ifnum\UL@pe=\z@ \else \LA@penalty\UL@pe \fi % use penalty from inside box
- \UL@unegroup}
-% notice that a box with only a penalty in it is discarded, but the penalty
-% is still used! This is so a series of discardable glues and penalties
-% behaves properly.
-
-\def\UL@putbox{\ifx\UL@start\@empty \else % not inner
- \vrule\@width\z@ \LA@penalty\@M
- {\UL@skip\wd\UL@box \UL@leaders \kern-\UL@skip}%
- \box\UL@box \fi}
-
-% With interword leaders, give some overlap to avoid gaps caused by
-% round-off errors in the printing program. Needs \unskip \unskip \unskip
-% above. This version overlaps 1/300 inch, which looks good at high
-% resolution, and will still work down to ~150 dpi. Change the value
-% of \UL@pixel if necessary.
-
-\newdimen\UL@pixel \UL@pixel=1in \divide\UL@pixel 300
-
-\def\UL@leaders{{\LA@hskip-\UL@pixel \advance\UL@skip\tw@\UL@pixel
- \UL@leadtype\LA@hskip\UL@skip \LA@hskip-\UL@pixel}}
-
-% restore some things for inside math or \mbox
-\def\UL@hrest{\let\ \LA@space \let\-\@empty \let\penalty\LA@penalty}
-
-\def\UL@space{\LA@space \global\UL@skip\lastskip \unskip \UL@reskip}% \
-
-% Hyphenation is done by explicit \discretionary. The overlapping melds
-% with the running overlap because it *is* part of the running overlap:
-% The word fragment is extended by the width of the hyphenation which is
-% then overlapped by leaders. The discretionary may occupy this space
-% if a break occurs; otherwise the next syllable gets doubly-overlapped
-% (in registration) for a distance of the hyphen's width.
-\def\UL@dischyp{\global\setbox\UL@hyphenbox\hbox
- {\ifnum \hyphenchar\font<\z@ \string-\else \char\hyphenchar\font \fi}%
- \kern\wd\UL@hyphenbox \LA@penalty\@M \UL@stop \kern-\wd\UL@hyphenbox
- \discretionary{\box\UL@hyphenbox}{}{}\UL@start}
-
-\let\LA@penalty\penalty
-\def\UL@penalty{\relax\ifhmode \afterassignment\UL@@penalty\count@
- \else\LA@penalty\fi}
-\def\UL@@penalty{\LA@penalty \ifnum\count@=\z@
- \@ne \else \count@ \fi % zero penalty => no penalty, so use 1 instead.
- \UL@stop \UL@start}
-
-% The test \ifx\ \LA@space \else means we are neither in math mode nor an
-% \mbox, so it is safe to stop the current \UL@box. \ , \- , and \penalty
-% (= \linebreak or \nolinebreak) are common enough that they are restored
-% directly (by \UL@hrest); \\, \newline, \hskip (= \hspace) are rare enough
-% that the test is incorporated in their UL versions. This adds processing
-% when they're used, but saves processing in \UL@hrest called by \everymath
-% \everyvbox and \everyhbox.
-
-\def\UL@hskip{\ifx\ \LA@space \LA@hskip \else
- \afterassignment\UL@reskip \global\UL@skip \fi}
-
-\def\UL@reskip{\UL@stop \UL@leaders \UL@start}
-
-% Redefine \\ and \newline so the vertical space from \\[ ] is not lost
-% and so the \hfil is not underlined! \\ and \newline do nothing if inside
-% inner braces.
-
-\def\UL@cr{\unskip \ifx\ \LA@space \let\UL@vad\@gobble
- \else \UL@stop \unskip\unskip\unskip \let\UL@vad\vadjust \fi
- \@ifstar{\UL@vad{\LA@penalty\@M}\UL@cra}\UL@cra}
-\def\UL@cra{\@ifnextchar[\UL@crb\UL@newline}
-\def\UL@crb[#1]{\UL@vad{\vskip#1}\UL@newline}
-
-\def\UL@newline{\ifx\UL@start\@empty % (\UL@cr may have \UL@stop-ed already)
- \unskip \ifx\ \LA@space \else \UL@stop \unskip\unskip\unskip \fi\fi
- \LA@hskip \z@\@plus.0001fil\LA@penalty -\@M \UL@start}
-
-% That concludes the basic underlining. To put various other objects
-% (characters) under (or over) text we need to define \markoverwith
-% to set the overlay material in a box, and use leaders of that box for
-% overlaying the text. Here, the meaning of \UL@pixel is changed so
-% that `pixel' size = box size.
-%
-\newbox\ULC@box
-
-\def\markoverwith#1{\setbox\ULC@box\hbox{{#1}}\UL@pixel.5\wd\ULC@box
- \ifmmode \setbox\ULC@box\hbox{\raise1.4ex\box\ULC@box}%
- \dp\ULC@box-1.4ex\ht\ULC@box\z@ \def\UL@leadtype{\cleaders\copy\ULC@box}%
- \else
- \def\UL@leadtype{\leaders\copy\ULC@box}%
- \fi}
-
-% Now define various special underlines. All the definitions go like
-% \def \command {\bgroup \markoverwith{something} \ULon}
-
-% For drawing a wavey underline instead of a straight one the command
-% is \uwave (under-wave) which uses the wiggle from 6-pt lasy font:
-
-\def\uwave{\bgroup \markoverwith{\lower3.5\p@\hbox{\sixly
- \kern-.21\p@ \char58 \kern-.21\p@}}\ULon}
-\font\sixly=lasy6 % does not re-load if already loaded, so no memory problem.
-
-% To draw a double underline under text, use \uuline{text}
-
-\def\uuline{\bgroup \markoverwith{\hbox
- {\kern-.03em\vtop{\kern.2ex\hrule width.2em\kern1.1\p@
- \hrule}\kern-.03em}}\ULon}
-
-% To draw a line through text instead of under it (strike out) do
-% `under'-line with negative depth. Note that this one uses a real
-% line, not characters, so there is no \markoverwith.
-
-\def\sout{\bgroup \ULdepth=-.5ex \ULset}
-
-% To mark //// over text instead of underlining (x-out)
-%
-\def\xout{\bgroup \markoverwith{\kern-.1em{/}\kern-.1em}\ULon}
-
-% \useunder {underline_command}{font_declaration}{font_command}
-% e.g.: \useunder{\uuline}{\bfseries}{\textbf}
-% \useunder{\uwave}{\bf}{}
-\def\useunder#1#2#3{\relax
- \ifx\relax#2\relax\else % declaration command given
- \def#2{\def\@tempa{#1}\global\let\UL@ender\UL@swender
- \expandafter\@tempa\expandafter{\ifnum\z@=\string`}\fi}%
- \MakeRobust{#2}\fi
- \ifx\relax#3\relax\else % argumentative command
- \def#3{#1}\MakeRobust{#3}\fi}
-
-\expandafter\ifx \csname @ifundefined\endcsname \relax
-
-% Allow plain TeX to use this style:
- \def\@height{height}
- \def\@depth{depth}
- \def\@width{width}
- \def\@empty{}
- \def\@gobble#1{}
- \def\MakeRobust#1{}
-% Do non-outer \newif with no visible \if's or \fi's when skipping
- \csname newif\expandafter\endcsname \csname if@ignore\endcsname
-
-\else
-
- \def\MakeRobust#1{\expandafter\let
- \csname \expandafter\@gobble\string#1 \endcsname= #1%
- \edef#1{\noexpand\protect \expandafter\noexpand
- \csname\expandafter\@gobble\string#1 \endcsname}
- }
- \MakeRobust\uline
- \MakeRobust\uuline
- \MakeRobust\uwave
- \MakeRobust\sout
- \MakeRobust\xout
-
- \let\LA@em\em \let\LA@emph\emph
- \expandafter\let\expandafter\LA@Pem \csname em \endcsname
- \expandafter\let\expandafter\LA@Pemph \csname emph \endcsname
- \def\ULforem{\useunder{\uline}{\em}{\emph}}
- \def\normalem{\let\em\LA@em \let\emph\LA@emph
- \expandafter\let\csname em \endcsname\LA@Pem
- \expandafter\let\csname emph \endcsname\LA@Pemph}
- \ULforem % default is to use underlining for \em,
-
-\fi
-
-% Process LaTeX \package options; plain TeX skips this section
-
-\expandafter\ifx\csname ProvidesPackage\endcsname \relax \else
- \ProvidesPackage{ulem}[2000/05/26]
- \DeclareOption{normalem}{\normalem}
- \DeclareOption{ULforem}{\ULforem}
- \DeclareOption{normalbf}{}
- \DeclareOption{UWforbf}{\useunder{\uwave}{\bf}{\textbf}}
- \ProcessOptions
- \let\UL@marginpar\marginpar
- \newcommand\UL@marpar[2][\gDefault@pt]{\gdef\gDefault@pt{#2}%
- \ifx\ \LA@space \@latexerr{Marginpar lost}%
- \else \UL@stop \UL@marginpar[#1]{#2}\UL@start \fi}
- \addto@hook\UL@hook{\let\marginpar\UL@marpar}
-\fi
-
-\catcode`@=\ULthickness % Scratch meaning: restore catcode of @
-
-\def\ULthickness{.4pt}% can change this with \renewcommand
-\newdimen\ULdepth \ULdepth=\maxdimen
-% "maxdimen" depth causes the depth to be set according to the font. You
-% can change \ULdepth for a permanent setting or a special effect (\sout).
-
-\endinput
-
-ULEM is a package for LaTeX or plain TeX which provides various types of
-underlining that can stretch between words and be broken across lines.
-In LaTeX this style replaces italics with underlining in emphasized text
-given by \em or \emph -- but only if the text is delimited by braces. A
-declaration \normalem (or the \usepackage option [normalem]) restores the
-normal \em behavior. For underlining in plain TeX, \input ulem.sty, and
-use the \uline command.
-
-Unlike regular underlining, ulem allows line breaks, and even primitive
-hyphenation, within the underlined text; but it is far from perfect. It is
-most suitable for simple text like {\em \LaTeX: A document preparation
-system\/} that may need to be underlined in a manuscript submitted for
-publication. Again, ulem will only replace \em and \emph when the text is
-delimited by explicit braces.
-
-The thickness of the underline rule is given by \ULthickness; use
-\renewcommand or \def (not \setlength) to change it. The depth of the
-underline is controlled by the length \ULdepth. The default value is a
-special flag which lets the current font control the depth. You can set
-a particular value to \ULdepth (using \setlength) to force a particular
-depth, either locally for a special purpose, or for the document as a
-whole. See the definition of \sout.
-
-Every word is typeset in an underlined box, so automatic hyphenation is
-normally disabled, but explicit discretionary hyphens (\-) will still be
-obeyed. Several text-formatting commands are specially supported within
-the underlining: \-, \ , ~, \\, \newline, \linebreak, \nolinebreak,
-\penalty, \hskip, \hspace, \hfil, \hfill, \hss. Displayed math and \par
-are deliberately not supported to aid in the detection of runaway arguments
-(missing braces). The special commands do have a problem: they end a
-group so any local assignments are lost.
-
-The underlines continue between words, and stretch just like ordinary
-spaces do. Since spaces delimit words, there may be some difficulty
-with syntactical spaces (e.g. "2.3 pt"). Some effort is made to handle
-such cases, but sometimes (such as \let\x= y) the space is interpreted
-incorrectly. You can usually solve the problem by enclosing the offending
-command in braces or in a macro (\newcommand\xeqy{\let\x= y}), but...
-
-One important incompatibility with braces and macro replacement:
-ALL THE TEXT IN BRACES OR COMING FROM A MACRO IS TYPESET IN A BOX.
-That is, braces will suppress stretching and linebreaks in the text they
-enclose. Moreover, the specially-taken-care-of commands \-, \\, \newline
-and \linebreak are usually ignored if they appear inside extra braces.
-They operate only when the braces delimit a command parameter without
-introducing a level of grouping. (Even though braces delimiting command
-parameters do not normally imply grouping, many commands will add their
-own grouping.) Thus, you should try to limit inner braces to short bits of
-text or for delimiting parameters to commands. For emergency repairs, see
-the "Marat/Sade" example below. Syntactical spaces inside braces never
-cause a problem, nor do spaces in math mode.
-
-Text produced by expansion of a command (macro) is boxed too, but \\, \
-and \- still work properly in the expansion text:
- \newcommand\iff{if and only if} {\em \iff}
-does not allow any stretching or linebreaking between words, but
- \newcommand\iff{if\ and\ only\ if} {\em \iff}
-allows stretching and linebreaking. There is a problem though: the
-\ between words closes a group and any local assignments will be lost,
-in particular, font changes and color changes.
-
-This loss of local assignments will break some other standard commands,
-(e.g., \cite) which produce multiple `words' using local assignments.
-The way to protect such commands is to bury them in an \mbox:
- {\em every\-one agrees~\mbox{\cite{you,me}}.}
-
-Nested \em commands produce multiple underlining, but heed the warnings
-about braces above. To get italics without underlining, use \it. Nesting
-of other types of underline is also possible, but the `underlines' may
-overlap.
-
-HERE IS A SIMPLE EXAMPLE.
-
-\noindent 'Twas {\em brillig\/} and the {\em slithy~toves\/}
-did {\em gyre\/} and {\em gim\-ble\/} in the {\em wabe,\\[2pt] }
-All {\em mim\-sey\/} were the {\em boro\-goves\/} and
-the {\em mome raths outgrabe}.
-
-HERE IS A DIFFICULT EXAMPLE.
-
-\usepackage{ulem}
-\setlength\textwidth{3.3in}
-\begin{document}
-% \large
-No, I did {\em not} act in the movie {\em \emph{The} % <<<<<<< Nested
-\emph{Persecu}\-\emph{tion} \emph{and} \emph{Assassination} \emph{of}
-\emph{Jean-Paul} \emph{Marat}, as per\-formed by the Inmates
-of the Asylum of Charenton under the Direc\-tion of the
-Marquis de~Sade!} But I {\em did} see it.
-\end{document}
-
-In the nested emphasis, \emph had to be given for each word separately
-so the spaces between could stretch and break into lines. Even the
-discretionary hyphen (\-) in `Persecution' had to be outside the braces,
-but the hyphen in `Direction' was just fine because it was not in nested
-braces. The same applies to other special commands like \ and ~. Also,
-the spaces are printed with only a single underline because they are
-outside the nested \emph commands. This example really illustrates that
-ulem does not handle nested emphasis very well! Nevertheless, it is fine
-for simple things.
-
-Underlining can also be done according to \uline{this text}. To use this
-type of underlining, but have \em still produce italics, put the command
-\normalem in the preamble of the document or load ulem with
-\usepackage[normalem]{ulem}.
-
-Some variations on underlining are provided, including a wavey underline
-(\uwave{under-wave}), double underlines (\uuline{two lines under this}),
-a line through text rather than under it (\sout{strike out}), and text
-crossed-out with /////// (\xout{cross out, X out}). You can define your
-own styles following the examples provided. The definition should be
-something like:
-
-\newcommand\command{\bgroup \markoverwith{something}\ULon}
-
-The "something" can be as simple as a single character, or as complex as
-you can keep track of.
-
-The various underlining commands are essentially textual, and will not
-work quite the same in math mode. But since some font commands, like \bf,
-serve both for text and math, math mode is handled (in an approximate way).
-The performance in math mode is somewhat different from in text: there will
-be no line breaks or stretching in the underlined text, and the vertical
-positioning may not be right. The results should be best for \uline,
-\uwave, \uuline, and any other truly UNDER-line you define.
-
-Any type of underlining can be substituted for any font-selection command
-by issuing a proper \useunder declaration:
-
-\useunder{\underlinecommand}{\fontdeclaration}{\fontcommand}
-
-e.g., \useunder{\uuline}{\bfseries}{\textbf} gives a double underline
-instead of bold face in LaTeX. The commands \normalem and \ULforem switch
-underlining for \em off and on, respectively, and so do the \usepackage
-options [normalem] and [ULforem]. There is also the \usepackage style
-option [UWforbf] to replace boldface with a wavey underline.
-
-UWforbf does handle \bf in math mode, but it doesn't work in section titles,
-unfortunately, because the titles are not delimited by explicit braces when
-printed by the \section command. For the present version, the \bfseries
-command still produces bold face, but \bf makes an under-wave. To get under-
-waved section titles you can do
-
-\renewcommand\@seccntformat[1]{\uwave{\csname the#1\endcsname}\hskip 1em}
-
-and later specify \section[...]{\uwave{...}}.
-
-In plain TeX there is no \textbf so you should use \useunder{\UWave}{\bf}{}.
-You can even skip a step and define the underline or overprint with \useunder:
-\useunder{\bgroup\markoverwith{!}\ULon}{\sf}{}
-
-Some commands, such as \\ and \hskip are given special treatment, but
-others (like \marginpar) are not. Support for others can be added by
-assigning special meanings in the token register \UL@hook. (In LaTeX do
-\addto@hook\UL@hook{\let\command\ULversion}.) The UL versions of commands
-should be modelled on \UL@hskip or \UL@cr, and should include the test
-"\ifx\ \LA@space". For example, support for "\marginpar" is added through
-the hook mechanism.
-
-All the underlining commands are robust in LaTeX.
-
-% Previous bug-finders: Esther Hu (\hfill in plain); Lones Smith (\tt\-);
-% Steve Anderson (\ooalign accents); Thanassi Protopapas ( { in tables).
-% The bug finders' fee is now $0.00; it will double for each new bug found.
-% Version 1994:
-% Many changes! Notably: LaTeX2e options and \emph. Nesting works (somewhat).
-% Behavior with inner braces is more consistent (not stripped). \useunder.
-% Better underwave (using lasy6). Special underlines are not commented out.
-% patch 1995: fix \UL@swender to work in {tabular}; make hyphenation join
-% well; crude math support; eliminate \@clb
-% patch 1996: use "\csname ProvidesPackage\endcsname", tidying.
-% 1997: fix \\ when LaTeX changed; remove extra overlap in putbox.
-% 2000: hook (and marginpar)
-%
-% Send problem reports to asnd@reg.triumf.ca
-%
-% test integrity:
-% brackets: round, square, curly, angle: () [] {} <>
-% backslash, slash, vertical, at, dollar, and: \ / | @ $ &
-% hat, grave, acute (apostrophe), quote, tilde, under: ^ ` ' " ~ _