summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/source/latex/l3kernel/l3final.dtx
blob: 3a404d6d7ba03e419391e8eb930c67ee6c084e78 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
% \iffalse meta-comment
%
%% File: l3final.dtx Copyright (C) 1990-2018 The LaTeX3 Project
%
% It may be distributed and/or modified under the conditions of the
% LaTeX Project Public License (LPPL), either version 1.3c of this
% license or (at your option) any later version.  The latest version
% of this license is in the file
%
%    https://www.latex-project.org/lppl.txt
%
% This file is part of the "l3kernel bundle" (The Work in LPPL)
% and all files in that bundle must be distributed together.
%
% -----------------------------------------------------------------------
%
% The development version of the bundle can be found at
%
%    https://github.com/latex3/latex3
%
% for those people who are interested.
%
%<*driver>
\documentclass[full,kernel]{l3doc}
\begin{document}
  \DocInput{\jobname.dtx}
\end{document}
%</driver>
% \fi
%
% \title{^^A
%   The \pkg{l3final} package\\ Format finalisation^^A
% }
%
% \author{^^A
%  The \LaTeX3 Project\thanks
%    {^^A
%      E-mail:
%        \href{mailto:latex-team@latex-project.org}
%          {latex-team@latex-project.org}^^A
%    }^^A
% }
%
% \date{Released 2018-12-12}
%
% \maketitle
%
% \begin{documentation}
%
% This module is the end of the \LaTeX3 format file. Currently, a lot of this
% is copy-pasted from the \LaTeXe{} format or is highly unstable (essentially
% hacks which need revisiting later).
%
% \end{documentation}
%
% \begin{implementation}
%
% \section{\pkg{l3final} Implementation}
%
%    \begin{macrocode}
%<*initex>
%    \end{macrocode}
%
% \subsection{Input encoding}
%
%    \begin{macrocode}
%<@@=char>
%    \end{macrocode}
%
% The letters |a|--|z| and |A|--|Z| have the correct catcode directly from \IniTeX{}
% while for Unicode engines (almost) all characters to be treated as letters
% are defined by the automatic data parsing. Thus the changes here are to 
% deal with the additional cases.
%
% All the characters in the range $0$--$31$ \emph{except} tab (|^^I|), nl
% (|^^J|), ff (|^^L|) and cr (|^^M|).
%    \begin{macrocode}
\int_step_inline:nnn { 0 } { `\^^H }
  { \char_set_catcode_invalid:n {#1} }
\char_set_catcode_invalid:n { `\^^K }
\int_step_inline:nnn { `\^^N } { 31 }
  { \char_set_catcode_invalid:n {#1} }
%    \end{macrocode}
% The same is true for the top of the $7$-bit range.
%    \begin{macrocode}
\char_set_catcode_invalid:n { 127 }
%    \end{macrocode}
% For the $8$-bit engines dotless-I and dotless-J need to be valid,
% and these therefore appear in some following code. To avoid an issue
% when those lines are read, the chars are made valid here and that is
% reversed for Unicode engines below.
%    \begin{macrocode}
\char_set_catcode_letter:n { `\^^Y }
\char_set_catcode_letter:n { `\^^Z }
%    \end{macrocode}
%
% For non-Unicode engine we now need to convert from UTF-$8$ to $8$-bit
% for pattern reading and document use. The set up here is copied from
% the file |conv-utf8-ec.tex| maintained by \textsc{tug} for hyphenation
% pattern use. As some of the relevant primitives have been moved and to
% allow for self-contained code that is copied here with minor adjustments.
% (The primitives have to be available at point of use not just at point of
% definition so a compatibility layer is hard to arrange here.)
%    \begin{macrocode}
\bool_lazy_or:nnTF
  { \sys_if_engine_luatex_p: }
  { \sys_if_engine_xetex_p: }
%    \end{macrocode}
% Unicode engines: make these two invalid (this happens after \TeX{}
% has read and thrown away their use in the following).
%    \begin{macrocode}
  {
    \char_set_catcode_invalid:n { `\^^Y }
    \char_set_catcode_invalid:n { `\^^Z }
  }
%    \end{macrocode}
% Now for $8$-bit engines.
%    \begin{macrocode}
  {
%    \end{macrocode}
% At least for the present, make \upTeX{} behave like \pdfTeX{} so
% the set up is easier.
%    \begin{macrocode}
    \sys_if_engine_uptex:T
      { \tex_disablecjktoken:D }
%    \end{macrocode}
% The actual mappings: these are kept low-level for performance reasons.
%    \begin{macrocode}
    \cs_new:cpn { @@_active_C3:N } #1
      {
        \if_meaning:w #1 ^^9f ^^ff \else: % ß - U+00DF - germandbls
        \if_meaning:w #1 ^^a0 ^^e0 \else: % à - U+00E0 - agrave
        \if_meaning:w #1 ^^a1 ^^e1 \else: % á - U+00E1 - aacute
        \if_meaning:w #1 ^^a2 ^^e2 \else: % â - U+00E2 - acircumflex
        \if_meaning:w #1 ^^a3 ^^e3 \else: % ã - U+00E3 - atilde
        \if_meaning:w #1 ^^a4 ^^e4 \else: % ä - U+00E4 - adieresis
        \if_meaning:w #1 ^^a5 ^^e5 \else: % å - U+00E5 - aring
        \if_meaning:w #1 ^^a6 ^^e6 \else: % æ - U+00E6 - ae
        \if_meaning:w #1 ^^a7 ^^e7 \else: % ç - U+00E7 - ccedilla
        \if_meaning:w #1 ^^a8 ^^e8 \else: % è - U+00E8 - egrave
        \if_meaning:w #1 ^^a9 ^^e9 \else: % é - U+00E9 - eacute
        \if_meaning:w #1 ^^aa ^^ea \else: % ê - U+00EA - ecircumflex
        \if_meaning:w #1 ^^ab ^^eb \else: % ë - U+00EB - edieresis
        \if_meaning:w #1 ^^ac ^^ec \else: % ì - U+00EC - igrave
        \if_meaning:w #1 ^^ad ^^ed \else: % í - U+00ED - iacute
        \if_meaning:w #1 ^^ae ^^ee \else: % î - U+00EE - icircumflex
        \if_meaning:w #1 ^^af ^^ef \else: % ï - U+00EF - idieresis
        \if_meaning:w #1 ^^b0 ^^f0 \else: % ð - U+00F0 - eth
        \if_meaning:w #1 ^^b1 ^^f1 \else: % ñ - U+00F1 - ntilde
        \if_meaning:w #1 ^^b2 ^^f2 \else: % ò - U+00F2 - ograve
        \if_meaning:w #1 ^^b3 ^^f3 \else: % ó - U+00F3 - oacute
        \if_meaning:w #1 ^^b4 ^^f4 \else: % ô - U+00F4 - ocircumflex
        \if_meaning:w #1 ^^b5 ^^f5 \else: % õ - U+00F5 - otilde
        \if_meaning:w #1 ^^b6 ^^f6 \else: % ö - U+00F6 - odieresis
        \if_meaning:w #1 ^^b8 ^^f8 \else: % ø - U+00F8 - oslash
        \if_meaning:w #1 ^^b9 ^^f9 \else: % ù - U+00F9 - ugrave
        \if_meaning:w #1 ^^ba ^^fa \else: % ú - U+00FA - uacute
        \if_meaning:w #1 ^^bb ^^fb \else: % û - U+00FB - ucircumflex
        \if_meaning:w #1 ^^bc ^^fc \else: % ü - U+00FC - udieresis
        \if_meaning:w #1 ^^bd ^^fd \else: % ý - U+00FD - yacute
        \if_meaning:w #1 ^^be ^^fe \else: % þ - U+00FE - thorn
        \if_meaning:w #1 ^^bf ^^b8 \else: % ÿ - U+00FF - ydieresis
        \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi:
        \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi:
        \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi:
      }
    \cs_new:cpn { @@_active_C4:N } #1
      {
        \if_meaning:w #1 ^^83 ^^a0 \else: % ă - U+0103 - abreve
        \if_meaning:w #1 ^^85 ^^a1 \else: % ą - U+0105 - aogonek
        \if_meaning:w #1 ^^87 ^^a2 \else: % ć - U+0107 - cacute
        \if_meaning:w #1 ^^8d ^^a3 \else: % č - U+010D - ccaron
        \if_meaning:w #1 ^^8f ^^a4 \else: % ď - U+010F - dcaron
        \if_meaning:w #1 ^^91 ^^9e \else: % đ - U+0111 - dcroat
        \if_meaning:w #1 ^^99 ^^a6 \else: % ę - U+0119 - eogonek
        \if_meaning:w #1 ^^9b ^^a5 \else: % ě - U+011B - ecaron
        \if_meaning:w #1 ^^9f ^^a7 \else: % ğ - U+011F - gbreve
        \if_meaning:w #1 ^^b1 ^^19 \else: % ı - U+0131 - dotlessi
        \if_meaning:w #1 ^^b3 ^^bc \else: % ij - U+0133 - ij
        \if_meaning:w #1 ^^ba ^^a8 \else: % ĺ - U+013A - lacute
        \if_meaning:w #1 ^^be ^^a9 \else: % ľ - U+013E - lcaron
          \__kernel_msg_expandable_error:nn { kernel } { encoding-failure }
        \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi:
      }
    \cs_new:cpn { @@_active_C5:N } #1
      {
        \if_meaning:w #1 ^^82 ^^aa \else: % ł - U+0142 - lslash
        \if_meaning:w #1 ^^84 ^^ab \else: % ń - U+0144 - nacute
        \if_meaning:w #1 ^^88 ^^ac \else: % ň - U+0148 - ncaron
        \if_meaning:w #1 ^^8b ^^ad \else: % ŋ - U+014B - eng
        \if_meaning:w #1 ^^91 ^^ae \else: % ő - U+0151 - ohungarumlaut
        \if_meaning:w #1 ^^93 ^^f7 \else: % œ - U+0153 - oe
        \if_meaning:w #1 ^^95 ^^af \else: % ŕ - U+0155 - racute
        \if_meaning:w #1 ^^99 ^^b0 \else: % ř - U+0159 - rcaron
        \if_meaning:w #1 ^^9b ^^b1 \else: % ś - U+015B - sacute
        \if_meaning:w #1 ^^9f ^^b3 \else: % ş - U+015F - scedilla
        \if_meaning:w #1 ^^a1 ^^b2 \else: % š - U+0161 - scaron
        \if_meaning:w #1 ^^a5 ^^b4 \else: % ť - U+0165 - tcaron
        \if_meaning:w #1 ^^af ^^b7 \else: % ů - U+016F - uring
        \if_meaning:w #1 ^^b1 ^^b6 \else: % ű - U+0171 - uhungarumlaut
        \if_meaning:w #1 ^^ba ^^b9 \else: % ź - U+017A - zacute
        \if_meaning:w #1 ^^bc ^^bb \else: % ż - U+017C - zdotaccent
        \if_meaning:w #1 ^^be ^^ba \else: % ž - U+017E - zcaron
          \__kernel_msg_expandable_error:nn { kernel } { encoding-failure }
        \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi:
        \fi: \fi: \fi: \fi: \fi: \fi: \fi: \fi:
      }
    \cs_new:cpn { @@_active_C8:N } #1
      {
        \if_meaning:w #1 ^^99 ^^b3 \else: % ș - U+0219 - scommaaccent
        \if_meaning:w #1 ^^9b ^^b5 \else: % ț - U+021B - tcommaaccent
        \if_meaning:w #1 ^^b7 ^^1a \else: % ȷ - U+0237 - dotlessj
          \__kernel_msg_expandable_error:nn { kernel } { encoding-failure }
        \fi: \fi: \fi:
      }
%    \end{macrocode}
% Install and record the active characters.
%    \begin{macrocode}
    \clist_map_inline:nn { C3 , C4 , C5 , C8 }
      {
        \char_set_catcode_active:n { "#1 }
        \char_set_active_eq:nc { "#1 } { @@_active_ #1 :N }
        \seq_put_right:Nx \l_char_special_seq
          { \exp_not:c { \char_generate:nn { "#1 } { 12 } } }
        \seq_put_right:Nx \l_char_active_seq
          { \exp_not:c { \char_generate:nn { "#1 } { 12 } } }
      }
    \__kernel_msg_new:nnn { kernel } { encoding-failure }
      { Unknown~UTF-8~char }
%    \end{macrocode}
% All of the chars are lower case so give them the correct \tn{lccode}
% values.
%    \begin{macrocode}
    \clist_map_inline:nn
      {
        19 , 1A , 9E , A0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , A8 , A9 ,
        AA , AB , AC , AD , AE , AF , B0 , B1 , B2 , B3 , B3 , B4 , B5 ,
        B6 , B7 , B8 , B9 , BA , BB , BC , E0 , E1 , E2 , E3 , E4 , E5 ,
        E6 , E7 , E8 , E9 , EA , EB , EC , ED , EE , EF , F0 , F1 , F2 ,
        F3 , F4 , F5 , F6 , F7 , F8 , F9 , FA , FB , FC , FD , FE , FF
      }
      { \char_set_lccode:nn { "#1 } { "#1 } }
  }
%    \end{macrocode}
%
% \subsection{Temporary hacks}
%
% \begin{macro}{\T1/lmr/m/n/10, \TU/lmr/m/n/10}
%   For \emph{testing only} provide some kind of output: for that we
%   need a font. At present, select Latin Modern Roman at 10\,pt:
%   entirely arbitrary but at least usable.
%    \begin{macrocode}
\sys_if_engine_luatex:T
  {
    \tex_everyjob:D \exp_after:wN
      {
        \tex_the:D \tex_everyjob:D
        \lua_now:n { require("l3format.lua") }
      }
  }
\use:x
  {
    \tex_everyjob:D
      {
        \tex_the:D \tex_everyjob:D
        \bool_lazy_or:nnTF
          { \sys_if_engine_luatex_p: }
          { \sys_if_engine_xetex_p: }
          {
            \tex_font:D \exp_not:c { TU/lmr/m/n/10 }
              = "[lmroman10-regular.otf]/OT" \scan_stop:
            \exp_not:c { TU/lmr/m/n/10 }
            \tex_font:D \exp_not:c { TU/lmm/m/n/10 }
              = "[latinmodern-math.otf]/OT:mode=base;script=math;" \scan_stop:
            \tex_font:D \exp_not:c { TU/lmm/m/n/7 }
              = "[latinmodern-math.otf]/OT:mode=base;script=math;+ssty=0;"~at~7pt \scan_stop:
            \tex_font:D \exp_not:c { TU/lmm/m/n/5 }
              = "[latinmodern-math.otf]/OT:mode=base;script=math;+ssty=1;"~at~5pt \scan_stop:
            \exp_not:N \int_step_inline:nnn { 0 } { 3 }
              {
                \tex_textfont:D         ##1 = \exp_not:c { TU/lmm/m/n/10 }
                \tex_scriptfont:D       ##1 = \exp_not:c { TU/lmm/m/n/7 }
                \tex_scriptscriptfont:D ##1 = \exp_not:c { TU/lmm/m/n/5 }
              }
          }
          {
            \tex_font:D \exp_not:c { T1/lmr/m/n/10 }
              = ec-lmr10 \scan_stop:
            \exp_not:c { T1/lmr/m/n/10 }
            \tex_font:D \exp_not:c { OT1/lmr/m/n/10 }
              = rm-lmr10 \scan_stop:
            \tex_font:D \exp_not:c { OML/lmm/m/it/10 }
              = lmmi10 \scan_stop:
            \tex_font:D \exp_not:c { OMS/lmsy/m/n/10 }
              = lmsy10 \scan_stop:
            \tex_font:D \exp_not:c { OMX/lmex/m/n/10 }
              = lmex10 \scan_stop:
            \tex_font:D \exp_not:c { OT1/lmr/m/n/7 }
              = rm-lmr7 \scan_stop:
            \tex_font:D \exp_not:c { OML/lmm/m/it/7 }
              = lmmi7 \scan_stop:
            \tex_font:D \exp_not:c { OMS/lmsy/m/n/7 }
              = lmsy7 \scan_stop:
            \tex_font:D \exp_not:c { OMX/lmex/m/n/7 }
              = lmex10~at~7pt \scan_stop:
            \tex_font:D \exp_not:c { OT1/lmr/m/n/5 }
              = rm-lmr5 \scan_stop:
            \tex_font:D \exp_not:c { OML/lmm/m/it/5 }
              = lmmi5 \scan_stop:
            \tex_font:D \exp_not:c { OMS/lmsy/m/n/5 }
              = lmsy5 \scan_stop:
            \tex_font:D \exp_not:c { OMX/lmex/m/n/5 }
              = lmex10~at~5pt \scan_stop:
            \tex_textfont:D         0 = \exp_not:c { OT1/lmr/m/n/10 }
            \tex_textfont:D         1 = \exp_not:c { OML/lmm/m/it/10 }
            \tex_textfont:D         2 = \exp_not:c { OMS/lmsy/m/n/10 }
            \tex_textfont:D         3 = \exp_not:c { OMX/lmex/m/n/10 }
            \tex_scriptfont:D       0 = \exp_not:c { OT1/lmr/m/n/7 }
            \tex_scriptfont:D       1 = \exp_not:c { OML/lmm/m/it/7 }
            \tex_scriptfont:D       2 = \exp_not:c { OMS/lmsy/m/n/7 }
            \tex_scriptfont:D       3 = \exp_not:c { OMX/lmex/m/n/7 }
            \tex_scriptscriptfont:D 0 = \exp_not:c { OT1/lmr/m/n/5 }
            \tex_scriptscriptfont:D 1 = \exp_not:c { OML/lmm/m/it/5 }
            \tex_scriptscriptfont:D 2 = \exp_not:c { OMS/lmsy/m/n/5 }
            \tex_scriptscriptfont:D 3 = \exp_not:c { OMX/lmex/m/n/5 }
          }
      }
  }
%    \end{macrocode}
% \end{macro}
%
%  Produce PDF output if possible (easier testing) and set some kind of
%  horizontal width: the one here is the \LaTeXe{} default. A parfill is
%  also useful so we get some kind of sensible paragraphs.
%    \begin{macrocode}
\dim_set:Nn \tex_hsize:D { 345pt }
\skip_set:Nn \tex_parfillskip:D { 0pt plus 1fil }
\cs_if_exist:NT \tex_pdfoutput:D
  { \int_set:Nn \tex_pdfoutput:D { 1 } }
%    \end{macrocode}
%
% \begin{macro}{\stop}
%   A way out of the run without needing to switch to the code environment.
%    \begin{macrocode}
\cs_set_eq:NN \stop \tex_end:D
%    \end{macrocode}
% \end{macro}
%
% \subsection{Final tasks}
%
% \begin{macro}{\par}
%   \TeX{} has a nasty habit of inserting a command with the name \cs{par}
%   so we had better make sure that \cs{par} has a definition.
%    \begin{macrocode}
\cs_set_eq:NN \par \tex_par:D
%    \end{macrocode}
% \end{macro}
%
% The very last job is to dump the format, taking care to first leave
% the code environment and set the appropriate flag.
%    \begin{macrocode}
\use:n
  {
    \bool_set_false:N \l__kernel_expl_bool
    \char_set_catcode_space:n  { 9 }   % tab
    \char_set_catcode_space:n  { 32 }  % space
    \char_set_catcode_active:n { 34 }  % double quote
    \char_set_catcode_active:n { 36 }  % dollar
    \char_set_catcode_active:n { 38 }  % ampersand
    \char_set_catcode_other:n  { 58 }  % colon
    \char_set_catcode_active:n { 94 }  % circumflex
    \char_set_catcode_active:n { 95 }  % underscore
    \char_set_catcode_other:n  { 124 } % pipe
    \char_set_catcode_active:n { 126 } % tilde
    \tex_endlinechar:D = 13 \scan_stop:
    \tex_newlinechar:D = 10 \scan_stop:
    \tex_dump:D
  }
%    \end{macrocode}
%
%    \begin{macrocode}
%</initex>
%    \end{macrocode}
%
% \end{implementation}
%
%\PrintIndex