ucwmac.tex

   1 % The UCW Macro Collection (a successor of mjmac.tex)
   2 % Written by Martin Mares <mj@ucw.cz> in 2010--2018 and placed into public domain
   3 % -------------------------------------------------------------------------------
   4
   5 %%% Prolog %%%
   6
   7 % We'll use internal macros of plain TeX
   8 \catcode`@=11
   9
  10 \ifx\eTeXversion\undefined
  11 \errmessage{ucwmac requires the e-TeX engine or its successor}
  12 \fi
  13
  14 %%% PDF output detection %%%
  15
  16 \newif\ifpdf
  17 \pdffalse
  18
  19 \ifx\pdfoutput\undefined
  20 \else\ifnum\pdfoutput>0
  21         \pdftrue
  22         \pdfpkresolution=600    % Provide a reasonable default
  23 \fi\fi
  24
  25 %%% Auxiliary macros %%%
  26
  27 % Prepend/append #2 to the definition of #1
  28 \long\def\prependef#1#2{\expandafter\def\expandafter#1\expandafter{#2#1}}
  29 \long\def\appendef#1#2{\expandafter\def\expandafter#1\expandafter{#1#2}}
  30
  31 %%% Page size and margins %%%
  32
  33 % If you modify these registers, call \setuppage afterwards
  34 \ifx\luatexversion\undefined
  35         % In LuaTeX, \pagewidth and \pageheight are primitive
  36         \newdimen\pagewidth
  37         \newdimen\pageheight
  38 \fi
  39 \newdimen\leftmargin
  40 \newdimen\rightmargin
  41 \newdimen\topmargin
  42 \newdimen\bottommargin
  43 \newdimen\evenpageshift
  44
  45 \def\setuppage{%
  46         \hsize=\pagewidth
  47         \advance\hsize by -\leftmargin
  48         \advance\hsize by -\rightmargin
  49         \vsize=\pageheight
  50         \advance\vsize by -\topmargin
  51         \advance\vsize by -\bottommargin
  52         \hoffset=\leftmargin
  53         \advance\hoffset by -1truein
  54         \voffset=\topmargin
  55         \advance\voffset by -1truein
  56         \ifpdf
  57                 \pdfhorigin=1truein
  58                 \pdfvorigin=1truein
  59                 \ifx\luatexversion\undefined
  60                         \pdfpagewidth=\pagewidth
  61                         \pdfpageheight=\pageheight
  62                 \fi
  63         \fi
  64 }
  65
  66 % Set multiple margins to the same value
  67 \def\sethmargins#1{\leftmargin=#1\relax\rightmargin=#1\relax\evenpageshift=0pt\relax}
  68 \def\setvmargins#1{\topmargin=#1\relax\bottommargin=#1\relax}
  69 \def\setmargins#1{\sethmargins{#1}\setvmargins{#1}}
  70
  71 % Define inner/outer margin instead of left/right
  72 \def\setinneroutermargin#1#2{\leftmargin#1\relax\rightmargin#2\relax\evenpageshift=\rightmargin\advance\evenpageshift by -\leftmargin}
  73
  74 % Use a predefined paper format, calls \setuppage automagically
  75 \def\setpaper#1{%
  76         \expandafter\let\expandafter\currentpaper\csname paper-#1\endcsname
  77         \ifx\currentpaper\relax
  78                 \errmessage{Undefined paper format #1}
  79         \fi
  80         \currentpaper
  81 }
  82
  83 % Switch to landscape orientation, calls \setuppage automagically
  84 \def\landscape{%
  85         \dimen0=\pageheight
  86         \pageheight=\pagewidth
  87         \pagewidth=\dimen0
  88         \setuppage
  89 }
  90
  91 % Common paper sizes
  92 \def\defpaper#1#2#3{\expandafter\def\csname paper-#1\endcsname{\pagewidth=#2\pageheight=#3\setuppage}}
  93 \defpaper{a3}{297truemm}{420truemm}
  94 \defpaper{a4}{210truemm}{297truemm}
  95 \defpaper{a5}{148truemm}{210truemm}
  96 \defpaper{letter}{8.5truein}{11truein}
  97 \defpaper{legal}{8.5truein}{14truein}
  98
  99 % Default page parameters
 100 \setmargins{1truein}
 101 \setpaper{a4}
 102
 103 %%% Macros with optional arguments %%%
 104
 105 % After \def\a{\withoptarg\b}, the macro \a behaves in this way:
 106 %       \a[arg]         does \def\optarg{arg} and then it expands \b
 107 %       \a              does \let\optarg=\relax and then it expands \b
 108 \def\withoptarg#1{\let\xoptcall=#1\futurelet\next\xopt}
 109 \def\xopt{\ifx\next[\expandafter\xoptwith\else\let\optarg=\relax\expandafter\xoptcall\fi}
 110 \def\xoptwith[#1]{\def\optarg{#1}\xoptcall}
 111
 112 % A shortcut for defining macros with optional arguments:
 113 % \optdef\macro behaves as \def\domacro, while \macro itself is defined
 114 % as a wrapper calling \domacro using \withoptarg.
 115 \def\optdef#1{%
 116         \edef\xoptname{\expandafter\eatbackslash\string#1}%
 117         \edef#1{\noexpand\withoptarg\csname do\xoptname\endcsname}%
 118         \expandafter\def\csname do\xoptname\endcsname
 119 }
 120
 121 % Trick: \eatbackslash eats the next backslash of category 12
 122 \begingroup\lccode`\+=`\\
 123 \lowercase{\endgroup\def\eatbackslash+{}}
 124
 125 % Expand to the optional argument if it exists
 126 \def\optargorempty{\ifx\optarg\relax\else\optarg\fi}
 127
 128 %%% Placing material at specified coordinates %%%
 129
 130 % Set all dimensions of a given box register to zero
 131 \def\smashbox#1{\ht#1=0pt \dp#1=0pt \wd#1=0pt}
 132 \long\def\smashedhbox#1{{\setbox0=\hbox{#1}\smashbox0\box0}}
 133 \long\def\smashedvbox#1{{\setbox0=\vbox{#1}\smashbox0\box0}}
 134
 135 % Variants of \llap and \rlap working equally on both sides and/or vertically
 136 \def\hlap#1{\hbox to 0pt{\hss #1\hss}}
 137 \def\vlap#1{\vbox to 0pt{\vss #1\vss}}
 138 \def\clap#1{\vlap{\hlap{#1}}}
 139
 140 % \placeat{right}{down}{hmaterial} places <hmaterial>, so that its
 141 % reference point lies at the given position wrt. the current ref point
 142 \long\def\placeat#1#2#3{\smashedhbox{\hskip #1\lower #2\hbox{#3}}}
 143
 144 % Like \vbox, but with reference point in the upper left corner
 145 \long\def\vhang#1{\vtop{\hrule height 0pt\relax #1}}
 146
 147 % Like \vhang, but respecting interline skips
 148 \long\def\vhanglines#1{\vtop{\hbox to 0pt{}#1}}
 149
 150 % Crosshair with reference point in its center
 151 \def\crosshair#1{\clap{\vrule height 0.2pt width #1}\clap{\vrule height #1 width 0.2pt}}
 152
 153 %%% Output routine %%%
 154
 155 \newbox\pageunderlays
 156 \newbox\pageoverlays
 157 \newbox\commonunderlays
 158 \newbox\commonoverlays
 159
 160 % In addition to the normal page contents, you can define page overlays
 161 % and underlays, which are zero-size vboxes positioned absolutely in the
 162 % front / in the back of the normal material. Also, there are global
 163 % versions of both which are not reset after every page.
 164 \def\addlay#1#2{\setbox#1=\vbox{\ifvbox#1\box#1\fi\nointerlineskip\smashedvbox{#2}}}
 165 \def\pageunderlay{\addlay\pageunderlays}
 166 \def\pageoverlay{\addlay\pageoverlays}
 167 \def\commonunderlay{\addlay\commonoverlays}
 168 \def\commonoverlay{\addlay\commonoverlays}
 169
 170 % Our variation on \plainoutput, which manages inner/outer margins and overlays
 171 \output{\ucwoutput}
 172 \newdimen\pagebodydepth
 173 \def\ucwoutput{\wigglepage\shipout\vbox{%
 174         \makeheadline
 175         \ifvbox\commonunderlays\copy\commonunderlays\nointerlineskip\fi
 176         \ifvbox\pageunderlays\box\pageunderlays\nointerlineskip\fi
 177         \pagebody
 178         \pagebodydepth=\prevdepth
 179         \nointerlineskip
 180         \ifvbox\commonoverlays\vbox to 0pt{\vskip -\vsize\copy\commonoverlays\vss}\nointerlineskip\fi
 181         \ifvbox\pageoverlays\vbox to 0pt{\vskip -\vsize\box\pageoverlays\vss}\nointerlineskip\fi
 182         \prevdepth=\pagebodydepth
 183         \makefootline
 184 }\advancepageno
 185 \ifnum\outputpenalty>-\@MM \else\dosupereject\fi}
 186
 187 \def\wigglepage{\ifodd\pageno\else\advance\hoffset by \evenpageshift\fi}
 188
 189 % Make it easier to redefine footline font (also, fix it so that OFS won't change it unless asked)
 190 \let\footfont=\tenrm
 191 \footline={\hss\footfont\folio\hss}
 192
 193 %%% Itemization %%%
 194
 195 % Default dimensions of itemized lists
 196 \newdimen\itemindent            \itemindent=0.5in
 197 \newdimen\itemnarrow            \itemnarrow=0.5in                       % make lines narrower by this amount
 198 \newskip\itemmarkerskip         \itemmarkerskip=0.4em                   % between marker and the item
 199 \newskip\preitemizeskip         \preitemizeskip=3pt plus 2pt minus 1pt  % before the list
 200 \newskip\postitemizeskip        \postitemizeskip=3pt plus 2pt minus 1pt % after the list
 201 \newskip\interitemskip          \interitemskip=2pt plus 1pt minus 0.5pt % between two items
 202
 203 % Analogues for nested lists
 204 \newdimen\nesteditemindent      \nesteditemindent=0.25in
 205 \newdimen\nesteditemnarrow      \nesteditemnarrow=0.25in
 206 \newskip\prenesteditemizeskip   \prenesteditemizeskip=0pt
 207 \newskip\postnesteditemizeskip  \postnesteditemizeskip=0pt
 208
 209 \newif\ifitems\itemsfalse
 210 \newbox\itembox
 211 \newcount\itemcount
 212
 213 \def\preitemize{
 214         \ifitems
 215                 \vskip\prenesteditemizeskip
 216                 \advance\leftskip by \nesteditemindent
 217                 \advance\rightskip by \nesteditemnarrow
 218         \else
 219                 \vskip\preitemizeskip
 220                 \advance\leftskip by \itemindent
 221                 \advance\rightskip by \itemnarrow
 222         \fi
 223         \parskip=\interitemskip
 224 }
 225
 226 \def\postitemize{
 227         \ifitems
 228                 \vskip\postnesteditemizeskip
 229         \else
 230                 \vskip\postitemizeskip
 231         \fi
 232 }
 233
 234 \def\inititemize{\begingroup\preitemize\itemstrue\parindent=0pt}
 235
 236 \def\itemize#1{\inititemize\setbox\itembox\llap{#1\hskip\itemmarkerskip}%
 237 \let\:=\singleitem}
 238
 239 \def\singleitem{\par\leavevmode\copy\itembox\ignorespaces}
 240
 241 \def\endlist{\par\endgroup\postitemize}
 242
 243 \def\ibull{\raise0.2ex\hbox{$\bullet$}} % Signs frequently used for \itemize
 244 \def\idot{\raise0.2ex\hbox{$\cdot$}}
 245 \def\istar{\raise0.2ex\hbox{$\ast$}}
 246
 247 \def\numlist#1{\inititemize\itemcount=0\let\:=\numbereditem
 248 \let\itemnumbering=#1}
 249
 250 \def\numbereditem{\par\leavevmode\advance\itemcount by 1
 251 \llap{\itemnumbering\hskip\itemmarkerskip}\ignorespaces}
 252
 253 \def\nnorm{\the\itemcount}
 254 \def\ndotted{\nnorm.}
 255 \def\nparen{\nnorm)}
 256 \def\nparenp{(\nnorm)}
 257 \def\nroman{\romannumeral\itemcount}
 258 \def\nromanp{\nroman)}
 259 \def\nalpha{\count@=96\advance\count@ by\itemcount\char\count@)}
 260 \def\nAlpha{\count@=64\advance\count@ by\itemcount\char\count@)}
 261 \def\ngreek{$\ifcase\itemcount\or\alpha\or\beta\or\gamma\or\delta\or\epsilon\or
 262 \zeta\or\eta\or\theta\or\iota\or\kappa\or\lambda\or\mu\or\nu\or\xi\or\pi\or\rho
 263 \or\sigma\or\tau\or\upsilon\or\phi\or\chi\or\psi\or\omega\fi$)}
 264
 265 %%% Miscellanea %%%
 266
 267 % {\I italic} with automatic italic correction
 268 \def\I{\it\aftergroup\/}
 269
 270 % A breakable dash, to be repeated on the next line
 271 \def\={\discretionary{-}{-}{-}}
 272
 273 % Non-breakable identifiers
 274 \def\<#1>{\leavevmode\hbox{\I #1}}
 275
 276 % Handy shortcuts
 277 \let\>=\noindent
 278 \def\\{\hfil\break}
 279
 280 % Variants of \centerline, \leftline and \rightline, which are compatible with
 281 % verbatim environments and other catcode hacks
 282 \def\cline{\bgroup\def\linet@mp{\aftergroup\box\aftergroup0\aftergroup\egroup\hss\bgroup\aftergroup\hss\aftergroup\egroup}\afterassignment\linet@mp\setbox0\hbox to \hsize}
 283 \def\lline{\bgroup\def\linet@mp{\aftergroup\box\aftergroup0\aftergroup\egroup\bgroup\aftergroup\hss\aftergroup\egroup}\afterassignment\linet@mp\setbox0\hbox to \hsize}
 284 \def\rline{\bgroup\def\linet@mp{\aftergroup\box\aftergroup0\aftergroup\egroup\hss\bgroup\aftergroup\egroup}\afterassignment\linet@mp\setbox0\hbox to \hsize}
 285
 286 % Insert a PDF picture
 287 % \putimage{width specification}{file}
 288 \def\putimage#1#2{\hbox{\pdfximage #1{#2}\pdfrefximage\pdflastximage}}
 289
 290 % Let ~ be protected
 291 \let\plaintilde=~
 292 \protected\def~{\plaintilde}
 293
 294 %%% Epilog %%%
 295
 296 % Let's hide all internal macros
 297 \catcode`@=12