| 1 | % \begin{meta-comment} |
| 2 | % |
| 3 | % $Id: cmtt.dtx,v 1.1 2002/02/03 20:49:02 mdw Exp $ |
| 4 | % |
| 5 | % Nicer handling of the Computer Modern Typewriter font |
| 6 | % |
| 7 | % (c) 1996 Mark Wooding |
| 8 | % |
| 9 | %----- Revision history ----------------------------------------------------- |
| 10 | % |
| 11 | % $Log: cmtt.dtx,v $ |
| 12 | % Revision 1.1 2002/02/03 20:49:02 mdw |
| 13 | % Checkin for new build system. |
| 14 | % |
| 15 | % Revision 1.1 1996/11/19 20:47:55 mdw |
| 16 | % Initial revision |
| 17 | % |
| 18 | % |
| 19 | % \end{meta-comment} |
| 20 | % |
| 21 | % \begin{meta-comment} <general public licence> |
| 22 | %% |
| 23 | %% mdwlist package -- various list-related things |
| 24 | %% Copyright (c) 1996 Mark Wooding |
| 25 | %% |
| 26 | %% This program is free software; you can redistribute it and/or modify |
| 27 | %% it under the terms of the GNU General Public License as published by |
| 28 | %% the Free Software Foundation; either version 2 of the License, or |
| 29 | %% (at your option) any later version. |
| 30 | %% |
| 31 | %% This program is distributed in the hope that it will be useful, |
| 32 | %% but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 33 | %% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 34 | %% GNU General Public License for more details. |
| 35 | %% |
| 36 | %% You should have received a copy of the GNU General Public License |
| 37 | %% along with this program; if not, write to the Free Software |
| 38 | %% Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 39 | %% |
| 40 | % \end{meta-comment} |
| 41 | % |
| 42 | % |
| 43 | % \begin{meta-comment} <Package preambles> |
| 44 | %<+sty>\NeedsTeXFormat{LaTeX2e} |
| 45 | %<+sty>\ProvidesPackage{cmtt} |
| 46 | %<+fd>\ProvidesFile{mTTcmtt.fd} |
| 47 | %<+def>\ProvidesFile{mTTcmtt.def} |
| 48 | %<+sty|fd|def> [1996/05/25 1.1 Handing of the cmtt font] |
| 49 | % \end{meta-comment} |
| 50 | % |
| 51 | % ^^A \CheckSum{174} |
| 52 | %% \CharacterTable |
| 53 | %% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z |
| 54 | %% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z |
| 55 | %% Digits \0\1\2\3\4\5\6\7\8\9 |
| 56 | %% Exclamation \! Double quote \" Hash (number) \# |
| 57 | %% Dollar \$ Percent \% Ampersand \& |
| 58 | %% Acute accent \' Left paren \( Right paren \) |
| 59 | %% Asterisk \* Plus \+ Comma \, |
| 60 | %% Minus \- Point \. Solidus \/ |
| 61 | %% Colon \: Semicolon \; Less than \< |
| 62 | %% Equals \= Greater than \> Question mark \? |
| 63 | %% Commercial at \@ Left bracket \[ Backslash \\ |
| 64 | %% Right bracket \] Circumflex \^ Underscore \_ |
| 65 | %% Grave accent \` Left brace \{ Vertical bar \| |
| 66 | %% Right brace \} Tilde \~} |
| 67 | %% |
| 68 | % |
| 69 | % \begin{meta-comment} |
| 70 | % |
| 71 | %<*driver> |
| 72 | \input{mdwtools} |
| 73 | \describespackage{cmtt} |
| 74 | \mdwdoc |
| 75 | %</driver> |
| 76 | % |
| 77 | % \end{meta-comment} |
| 78 | % |
| 79 | %^^A------------------------------------------------------------------------- |
| 80 | % \section{Introductory note} |
| 81 | % |
| 82 | % \LaTeX\ has a rather cunning encoding handling system, which makes funny |
| 83 | % commands like accents work properly independent of the current font's |
| 84 | % actual layout. While this works rather well most of the time, the standard |
| 85 | % \mtt{tt} font has been rather left out of things. \LaTeX\ assumes that |
| 86 | % the Computer Modern Typewriter fonts have exactly the same layout as the |
| 87 | % more normal Computer Modern Roman family (i.e., that both conform to the |
| 88 | % \mtt{OT1} encoding). This plainly isn't true, since the Typewriter font |
| 89 | % contains a bunch of standard ASCII characters which are omitted from the |
| 90 | % standard Computer Modern fonts, such as curly braces \mtt{\{} and \mtt{\}}, |
| 91 | % and the backslash \mtt{\\}; these are usually dug up from the maths fonts, |
| 92 | % which looks fine in normal text, but looks really odd in monospace text. |
| 93 | % Compare `\texttt{\textbackslash begin\{document\}}' to |
| 94 | % `\mtt{\\begin\{document\}}', for example. |
| 95 | % |
| 96 | % There are two possibilities for dealing with this problem. One is to use |
| 97 | % the \mtt{\\verb} command, which works since all the extra characters in |
| 98 | % the Typewriter font are in the correct places, or use the DC~fonts, which |
| 99 | % have a proper encoding set up which contains all of these special |
| 100 | % characters anyway. |
| 101 | % |
| 102 | % Neither of these solutions is perfect. Using \mtt{\\verb} causes all |
| 103 | % manner of little niggly problems: you can't use it in footnotes or |
| 104 | % section headings, for example. (There are of course workarounds for this |
| 105 | % sort of thing: the author's \package{footnote} package provides a |
| 106 | % \env{footnote} environment which will allow verbatim text, and verbatim |
| 107 | % text in section headings can be achieved if one is sufficiently |
| 108 | % \TeX nical.) Using the DC~fonts is fine, although you actually lose a |
| 109 | % glyph or two. As far as the author is aware, the character \mtt{\'} (an |
| 110 | % `unsexed' single quote) is not present in the \mtt{T1}-encoded version of |
| 111 | % Computer Modern Typewriter, although it is hidden away in the original |
| 112 | % version. The author has found a need for this character in computer |
| 113 | % listings, and was horrified to discover that it was replaced by a German |
| 114 | % single quote character (\mtt{\\quotesinglbase}). |
| 115 | % |
| 116 | % This package defines a special encoding for the Computer Modern Typewriter |
| 117 | % font, so that documents can take advantage of its ASCII characters without |
| 118 | % resorting to verbatim text. (The main advantage of the DC~fonts, that |
| 119 | % words containing accents can be hyohenated, doesn't really apply to the |
| 120 | % Typewriter font, since it doesn't allow hyphenation by default anyway.) |
| 121 | % |
| 122 | % There are several files you'll need to create: |
| 123 | % \begin{description} \def\makelabel#1{\hskip\labelsep\mttfamily#1\hfil} |
| 124 | % |
| 125 | % \item [cmtt.sty] tells \LaTeX\ that there's a new encoding. It also |
| 126 | % provides some options for customising some aspects of the |
| 127 | % encoding, and defines some useful commands. |
| 128 | % |
| 129 | % \item [mTTenc.def] describes the encoding to \LaTeX: it sets up all the |
| 130 | % appropriate text commands so that they produce beautiful results. |
| 131 | % |
| 132 | % \item [mTTcmtt.fd] describes the re-encoded version of the font. This |
| 133 | % is more or less a copy of the file \mtt{OT1cmtt.fd}. |
| 134 | % |
| 135 | % \end{description} |
| 136 | % |
| 137 | % The package accepts some options which may be useful: |
| 138 | % \begin{description} \def\makelabel#1{\hskip\labelsep\sffamily#1\hfil} |
| 139 | % |
| 140 | % \item [override] overrides the meaning of the \mtt{\\ttfamily} command |
| 141 | % (and therefore also the \mtt{\\texttt} command too), making it the |
| 142 | % same as the new \mtt{\\mttfamily} command. This isn't the default |
| 143 | % just in case the change breaks something in an unexpected way. |
| 144 | % |
| 145 | % \item [t1] informs the package that you're using the \mtt{T1} encoding, |
| 146 | % and therefore can borrow some accented characters from the DC~version |
| 147 | % of Computer Modern Typewriter. This will probably be unnecessary, |
| 148 | % since the package attempts to work out what to do all by itself. |
| 149 | % |
| 150 | % \item [ot1] forces the package \emph{not} to use the DC~version of the |
| 151 | % Computer Modern Typewriter font for funny accents. Only use this |
| 152 | % option if the package thinks it should use the DC~Typewriter font |
| 153 | % when it shouldn't. |
| 154 | % |
| 155 | % \end{description} |
| 156 | % |
| 157 | % \DescribeMacro{\mttfamily} |
| 158 | % The command \mtt{\\mttfamily} selects the properly-encoded Typewriter |
| 159 | % font. It's a declaration which works just like the \mtt{\\ttfamily} |
| 160 | % command, except that comamnds like \mtt{\\\}} and \mtt{\\\_} use the |
| 161 | % characters from the font rather than choosing odd-looking versions from |
| 162 | % the maths fonts. All of the accent commands still work properly. In fact, |
| 163 | % some accent commands which didn't work before have been fixed. For |
| 164 | % example, saying `\mtt{\\texttt\{P\\'al Erd\\H os\}}' would produce |
| 165 | % something truly appalling like `\texttt{P\'al Erd\H os}', which is |
| 166 | % obviously ghastly. The new encoding handles this properly, and produces |
| 167 | % `\textmtt{P\'al Erd\H os}'.\footnote{ |
| 168 | % This isn't quite perfect. The accent, which isn't actually present in |
| 169 | % the Typewriter font, is taken from the Computer Modern bold font, but |
| 170 | % it doesn't look too bad. However, if you pass the option \textsf{t1} |
| 171 | % to the \package{cmtt} package when you load it, the accent will be taken |
| 172 | % from the DC~Typewriter font, and it will look totally wonderful.} |
| 173 | % |
| 174 | % \DescribeMacro{\textmtt} |
| 175 | % Font changing commands are much more convenient than th declarations, |
| 176 | % so a command \mtt{\\textmtt} is provided: it just typesets its argument |
| 177 | % in the re-encoded Typewriter font. |
| 178 | % |
| 179 | % \DescribeMacro{\mtt} |
| 180 | % Rather more excitingly, the \mtt{\\mtt} command allows you to generate |
| 181 | % almost-verbatim text very easily, without any of the restrictions of |
| 182 | % the \mtt{\\verb} command. This command was inspired by something which |
| 183 | % David Carlisle said to me in an email correspondence regarding the |
| 184 | % overuse of verbatim commands. |
| 185 | % |
| 186 | % \mtt{\\mtt} redefines several `short' commands to typeset the obvious |
| 187 | % characters. The complete list is shown below: there are some oddities, |
| 188 | % so watch out. |
| 189 | % |
| 190 | % ^^A This is an evil table. See if I care. (This is based on lots of |
| 191 | % ^^A hacking I did in glyphs.tex, but a good deal less horrible.) |
| 192 | % |
| 193 | % \medskip |
| 194 | % \hbox to \hsize\bgroup |
| 195 | % \hfil\vbox\bgroup |
| 196 | % \def\ex#1#2{\strut |
| 197 | % \enskip |
| 198 | % \mtt{\\\char`#2}\quad\hfil% |
| 199 | % \mtt{#2}\enskip} |
| 200 | % \def\h{\noalign{\hrule}} |
| 201 | % \def\v{height2pt&\omit&&\omit&&\omit&&\omit&&\omit&\cr} |
| 202 | % \let~\relax |
| 203 | % \offinterlineskip |
| 204 | % \ialign\bgroup&\vrule#&\ex#\cr \h\v |
| 205 | % &~\\&&~\{&&~\}&&~\_&&~\^&\cr \v\h\v |
| 206 | % &~\$&&~\%&&~\&&&~\#&&~\~&\cr \v\h\v |
| 207 | % &~\"&&~\'&&~\ &&~\|&&\omit\hfil&\cr \v\h |
| 208 | % \egroup\egroup |
| 209 | % \hfil\egroup |
| 210 | % \medskip |
| 211 | % |
| 212 | % As well as redefining these commands, \mtt{\\mtt} will endeavour to make |
| 213 | % single special characters display themselves in a verbatim-like way. This |
| 214 | % only works on `active' characters (like \mtt{~}), and \mtt{\\mtt} makes |
| 215 | % no attempt to change the category codes of any characters. |
| 216 | % |
| 217 | % Among other things, you'll probably noticed that several accent-making |
| 218 | % commands have been redefined. You can still use these accents through |
| 219 | % the \mtt{\\a} command, by saying \mtt{\\a'}, \mtt{\\a\^} and so on, |
| 220 | % as in the \env{tabbing} environment. |
| 221 | % |
| 222 | % There are also some oddities in the table: \mtt{\|} and \mtt{\"} can be |
| 223 | % accessed easily without playing with silly commands. Well, that's almost |
| 224 | % the case: these two characters are both often used as `short' verbatim |
| 225 | % commands, so they are forced back to their normal meanings so you can |
| 226 | % type them. |
| 227 | % |
| 228 | % Finally, a word on spacing. The \mtt{\\\ } command has been hijacked |
| 229 | % to produce a funny `visible space' character. You can still produce |
| 230 | % multiple spaces by saying something like `\mtt{\ \{\}\ \{\}}\dots\mtt{\ }', |
| 231 | % which is a bit contrived, but that's tough. Also, \mtt{~} has been stolen |
| 232 | % so that you can type \mtt{~} characters (e.g., in URLs), so the only |
| 233 | % way you can tpye a nonbreaking space is by using the \mtt{\\nobreakspace} |
| 234 | % command, which is a bit of a mouthful. There's an abbreviation, though: |
| 235 | % \mtt{\\nbsp} now means exactly the same thing. |
| 236 | % |
| 237 | % Was that not all supremely useful? Oh, just a note: this document doesn't |
| 238 | % use a single verbatim command or environment (except in the listings, |
| 239 | % where it's unavoidable) -- it's all done with \mtt{\\mtt}. |
| 240 | % |
| 241 | % \implementation |
| 242 | % |
| 243 | % \section{Implementation} |
| 244 | % |
| 245 | % \subsection{The package} |
| 246 | % |
| 247 | % \begin{macrocode} |
| 248 | %<*sty> |
| 249 | % \end{macrocode} |
| 250 | % |
| 251 | % I'll start with some options handling. |
| 252 | % |
| 253 | % \begin{macrocode} |
| 254 | \newif\ifcmtt@override |
| 255 | \newif\ifcmtt@dcfonts |
| 256 | \def\@tempa{T1}\ifx\encodingdefault\@tempa |
| 257 | \cmtt@dcfontstrue |
| 258 | \fi |
| 259 | \DeclareOption{override}{\cmtt@overridetrue} |
| 260 | \DeclareOption{t1}{\cmtt@dcfontstrue} |
| 261 | \DeclareOption{ot1}{\cmtt@dcfontsfalse} |
| 262 | \ProcessOptions |
| 263 | % \end{macrocode} |
| 264 | % |
| 265 | % This bit is really trivial. I'll just declare the font encoding. Oh, that |
| 266 | % was easy. |
| 267 | % |
| 268 | % \begin{macrocode} |
| 269 | \DeclareFontEncoding{mTT}{}{} |
| 270 | % \end{macrocode} |
| 271 | % |
| 272 | % Wait: there's a problem. \LaTeX\ will now complain bitterly that it can't |
| 273 | % find the font \mtt{mTT/cmr/m/n}, which is readonable, since I haven't |
| 274 | % declared any such font. The following line should sort this out, |
| 275 | % |
| 276 | % \begin{macrocode} |
| 277 | \DeclareFontSubstitution{mTT}{cmtt}{m}{n} |
| 278 | % \end{macrocode} |
| 279 | % |
| 280 | % Now I'd better load all the text commands I'll need when in this funny |
| 281 | % font variant. |
| 282 | % |
| 283 | % \begin{macrocode} |
| 284 | \input{mTTenc.def} |
| 285 | % \end{macrocode} |
| 286 | % |
| 287 | % \begin{macro}{\mttfamily} |
| 288 | % \begin{macro}{\textmtt} |
| 289 | % |
| 290 | % Finally, I'll need to define a command which switches to this funny font, |
| 291 | % and a \mtt{\\text}\dots\ command for it. |
| 292 | % |
| 293 | % \begin{macrocode} |
| 294 | \DeclareRobustCommand{\mttfamily}{% |
| 295 | \fontencoding{mTT}\fontfamily{\ttdefault}\selectfont% |
| 296 | } |
| 297 | \DeclareTextFontCommand{\textmtt}{\mttfamily} |
| 298 | % \end{macrocode} |
| 299 | % |
| 300 | % \end{macro} |
| 301 | % \end{macro} |
| 302 | % |
| 303 | % If an override was requested, make \mtt{\\ttfamily} the same as |
| 304 | % \mtt{\\mttfamily}. |
| 305 | % |
| 306 | % \begin{macrocode} |
| 307 | \ifcmtt@override |
| 308 | \let\ttfamily\mttfamily |
| 309 | \fi |
| 310 | % \end{macrocode} |
| 311 | % |
| 312 | % Well, that's all that's needed for the font definition. Here's a command |
| 313 | % which will typeset its argument in the typewriter font, allowing easy |
| 314 | % access to all the funny characters, and printing them properly in the |
| 315 | % correct font (which \mtt{\\\{} doesn't do, for example). |
| 316 | % |
| 317 | % \begin{macro}{\mtt@setchar} |
| 318 | % |
| 319 | % This macro assigns the given meaning to the given control sequence. Also, |
| 320 | % if the character named in the control sequence is currently set active, |
| 321 | % it will set the active meaning of the character to the same value. |
| 322 | % |
| 323 | % \begin{macrocode} |
| 324 | \def\mtt@setchar#1#2{% |
| 325 | \ifx#1#2\chardef#1`#1\else\let#1#2\fi% |
| 326 | \ifnum\catcode`#1=13% |
| 327 | \begingroup% |
| 328 | \lccode`\~=`#1% |
| 329 | \lowercase{\endgroup\let~#1}% |
| 330 | \fi% |
| 331 | } |
| 332 | % \end{macrocode} |
| 333 | % |
| 334 | % \end{macro} |
| 335 | % |
| 336 | % \begin{macro}{\mtt@chars} |
| 337 | % |
| 338 | % This macro lists the various control sequences which should be set up, |
| 339 | % so that they can be easily added to. |
| 340 | % |
| 341 | % \begin{macrocode} |
| 342 | \def\mtt@chars{% |
| 343 | \do\#\#% |
| 344 | \do\%\%% |
| 345 | \do\&\&% |
| 346 | \do\^\^% |
| 347 | \do\~\~% |
| 348 | \do\'\textquotesingl% |
| 349 | \do\"\textquotedbl% |
| 350 | \do\|\textbar% |
| 351 | \do\$\textdollar% |
| 352 | \do\_\textunderscore% |
| 353 | \do\{\textbraceleft% |
| 354 | \do\}\textbraceright% |
| 355 | \do\\\textbackslash% |
| 356 | \do\ \textvisiblespace% |
| 357 | } |
| 358 | % \end{macrocode} |
| 359 | % |
| 360 | % \end{macro} |
| 361 | % |
| 362 | % \begin{macro}{\mtt@do} |
| 363 | % |
| 364 | % This just sets up all the special characters listed above. It's a simple |
| 365 | % abbreviation, really. |
| 366 | % |
| 367 | % \begin{macrocode} |
| 368 | \def\mtt@do{\let\do\mtt@setchar\mtt@chars} |
| 369 | % \end{macrocode} |
| 370 | % |
| 371 | % \end{macro} |
| 372 | % |
| 373 | % \begin{macro}{\mtt} |
| 374 | % |
| 375 | % And finally, the macro itself. Ta-da! |
| 376 | % |
| 377 | % \begin{macrocode} |
| 378 | \DeclareRobustCommand\mtt[1]{\textmtt{\mtt@do#1}} |
| 379 | % \end{macrocode} |
| 380 | % |
| 381 | % \end{macro} |
| 382 | % |
| 383 | % \begin{macro}{\@tabacckludge} |
| 384 | % |
| 385 | % The otherwise almost totally perfect \mtt{\\@tabacckludge} gets very |
| 386 | % upset when its argument is an active character. (If you're wondering, |
| 387 | % this is the command which is responsible for the behaviour of the \mtt{\\a} |
| 388 | % command.) Adding a \mtt{\\string} makes everything work perfectly. |
| 389 | % |
| 390 | % \begin{macrocode} |
| 391 | \def\@tabacckludge#1{% |
| 392 | \expandafter\@changed@cmd\csname\string#1\endcsname\relax% |
| 393 | } |
| 394 | \let\a\@tabacckludge |
| 395 | % \end{macrocode} |
| 396 | % |
| 397 | % \end{macro} |
| 398 | % |
| 399 | % \begin{macro}{\nbsp} |
| 400 | % |
| 401 | % Make an abbreviation for \mtt{\\nobreakspace}. |
| 402 | % |
| 403 | % \begin{macrocode} |
| 404 | \let\nbsp\nobreakspace |
| 405 | % \end{macrocode} |
| 406 | % |
| 407 | % \end{macro} |
| 408 | % |
| 409 | % I think that's all that I have to do for the package. If there's any |
| 410 | % more to do, I'll add it later. |
| 411 | % |
| 412 | % \begin{macrocode} |
| 413 | %</sty> |
| 414 | % \end{macrocode} |
| 415 | % |
| 416 | % |
| 417 | % \subsection{The font definition file} |
| 418 | % |
| 419 | % This is obviously copied almost verbatim from the file \mtt{OT1cmtt.fd}. |
| 420 | % |
| 421 | % \begin{macrocode} |
| 422 | %<*fd> |
| 423 | \DeclareFontFamily{mTT}{cmtt}{\hyphenchar\font\m@ne} |
| 424 | \DeclareFontShape{mTT}{cmtt}{m}{n}{ |
| 425 | <5> <6> <7> <8> cmtt8 |
| 426 | <9> cmtt9 |
| 427 | <10> <10.95> cmtt10 |
| 428 | <12> <14.4> <17.28> <20.74> <24.88> cmtt12 |
| 429 | }{} |
| 430 | \DeclareFontShape{mTT}{cmtt}{m}{it}{ |
| 431 | <5> <6> <7> <8> <9> <10> <10.95> <12> <14.4> <17.28> <20.74> <24.88> |
| 432 | cmitt10 |
| 433 | }{} |
| 434 | \DeclareFontShape{mTT}{cmtt}{m}{sl}{ |
| 435 | <5> <6> <7> <8> <9> <10> <10.95> <12> <14.4> <17.28> <20.74> <24.88> |
| 436 | cmsltt10 |
| 437 | }{} |
| 438 | \DeclareFontShape{mTT}{cmtt}{m}{sc}{ |
| 439 | <5> <6> <7> <8> <9> <10> <10.95> <12> <14.4> <17.28> <20.74> <24.88> |
| 440 | cmtcsc10 |
| 441 | }{} |
| 442 | \DeclareFontShape{mTT}{cmtt}{m}{ui} {<->sub * cmtt/m/it} {} |
| 443 | \DeclareFontShape{mTT}{cmtt}{bx}{n} {<->sub * cmtt/m/n} {} |
| 444 | \DeclareFontShape{mTT}{cmtt}{bx}{it} {<->sub * cmtt/m/it} {} |
| 445 | \DeclareFontShape{mTT}{cmtt}{bx}{ui} {<->sub * cmtt/m/it} {} |
| 446 | %</fd> |
| 447 | % \end{macrocode} |
| 448 | % |
| 449 | % |
| 450 | % \subsection{The encoding definitions file} |
| 451 | % |
| 452 | % I've saved the trickiest bit until last. This file defines the mappings |
| 453 | % from text commands to glyphs in the font. |
| 454 | % |
| 455 | % \begin{macrocode} |
| 456 | %<*def> |
| 457 | % \end{macrocode} |
| 458 | % |
| 459 | % First for some fun with accents. The |cmtt| font doesn't contain all of |
| 460 | % the accents which the other Computer Modern fonts do, because those slots |
| 461 | % contain the standard ASCII characters which usually have to be `borrowed' |
| 462 | % from the maths fonts. |
| 463 | % |
| 464 | % Anyway, there's a load which don't need any special treatment. These are |
| 465 | % chosen from the \mtt{OT1} encoding by default anyway, so I needn't |
| 466 | % bother unless I'm really bothered about speed. I'm not, so I'll save |
| 467 | % the memory. |
| 468 | % |
| 469 | % Following the example of the \TeX book, I'll use the bold roman font |
| 470 | % for accents, so that they don't look really spindly. This is actually |
| 471 | % remarkably difficult to do, because the \textsf{NFSS} keeps getting in |
| 472 | % the way. I'll look after the old font name in a macro (it's handy that |
| 473 | % \textsf{NFSS} maintains this for me) and change to a known font, do the |
| 474 | % accent, change font back again, do the argument to the accent, and then |
| 475 | % close the group I did all of this in, so that no-one else notices what a |
| 476 | % naughty chap I am, really. This is startlingly evil. |
| 477 | % |
| 478 | % \begin{macrocode} |
| 479 | \def\cmtt@accent#1#2{{% |
| 480 | \let\@old@font\font@name% |
| 481 | \ifcmtt@dcfonts% |
| 482 | \fontencoding{T1}\selectfont% |
| 483 | \else% |
| 484 | \usefont{OT1}{cmr}{bx}{n}% |
| 485 | \fi% |
| 486 | #1{\@old@font#2}% |
| 487 | }} |
| 488 | % \end{macrocode} |
| 489 | % |
| 490 | % And now for the actual offending accents. |
| 491 | % |
| 492 | % \begin{macrocode} |
| 493 | \DeclareTextCommand{\H}{mTT}{\cmtt@accent\H} |
| 494 | \DeclareTextCommand{\.}{mTT}{\cmtt@accent\.} |
| 495 | % \end{macrocode} |
| 496 | % |
| 497 | % The `under' accents are all OK, so I shan't bother to define them either. |
| 498 | % Similarly, lots of the text symbol commands are fine as they are by |
| 499 | % default and I don't need to try and define them again. |
| 500 | % |
| 501 | % This, then, is the remaining commands which really need sorting out. |
| 502 | % (By the way, the only reason I've redefined \mtt{\\textellipsis} is |
| 503 | % because otherwise it will mess up the nice monospacing.) |
| 504 | % |
| 505 | % \begin{macrocode} |
| 506 | \DeclareTextSymbol{\textbackslash}{mTT}{92} |
| 507 | \DeclareTextSymbol{\textbar}{mTT}{124} |
| 508 | \DeclareTextSymbol{\textbraceleft}{mTT}{123} |
| 509 | \DeclareTextSymbol{\textbraceright}{mTT}{125} |
| 510 | \DeclareTextSymbol{\textless}{mTT}{60} |
| 511 | \DeclareTextSymbol{\textgreater}{mTT}{62} |
| 512 | \DeclareTextSymbol{\textunderscore}{mTT}{95} |
| 513 | \DeclareTextSymbol{\textvisiblespace}{mTT}{32} |
| 514 | \DeclareTextCommand{\textellipsis}{mTT}{...} |
| 515 | \DeclareTextSymbol{\textquotedbl}{mTT}{34} |
| 516 | \DeclareTextSymbol{\textquotesingl}{mTT}{13} |
| 517 | % \end{macrocode} |
| 518 | % |
| 519 | % That's all there is. Please return to your homes. |
| 520 | % |
| 521 | % \Finale |
| 522 | % |
| 523 | \endinput |