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
|
\section[lit2doc_code]{Code for processing documents (\tr{lit2texi} and \tr{lit2latex})}
\subsection[Do_substitutions]{Doing \tr{\defines}s}
Make a little \tr{perl} script from the collected substitution info
then throw each text block at it with @eval@. We love \tr{perl}!
\begin{code}
sub do_text_substitutions {
# first, build up perl eval string
local($evalstring) = '';
local($text,$replacement);
while (($text, $replacement) = each %Define) {
$replacement =~ s/\\/\\\\/g; # hide slashes, etc; need something more general
$replacement =~ s/\//\\\//g;
$replacement =~ s/\$/\\\$/g; # all regexp meta-chars; sigh
$replacement =~ s/\%/\\\%/g;
$replacement =~ s/\@/\\\@/g;
$replacement =~ s/\^/\\\^/g;
$replacement =~ s/\(/\\\(/g;
$replacement =~ s/\)/\\\)/g;
$replacement =~ s/\{/\\\{/g;
$replacement =~ s/\}/\\\}/g;
$replacement =~ s/\./\\\./g;
$evalstring .= "s/\\\\$text\\{\\}/$replacement/g;"
. "s/\\\\$text\\\\ /$replacement /g;"
. "s/\\\\$text\\b/$replacement/g;";
}
# now cycle through section titles and non-code/non-verbatim blocks
foreach ($S = 0; $S <= $#Sec_depth; $S++) { # titles...
local($_) = $Sec_title[$S];
eval($evalstring);
die "Subst eval failed: $@\neval_string=$eval_string\n" if $@;
$Sec_title[$S] = $_;
}
foreach ($B = 0; $B <= $#Blk_type; $B++) { # blocks...
if ($Blk_type[$B] !~ /(code|verb)$/) {
local($_) = $Blk_txt[$B];
s/\%de[a-z][a-z]\%([^\n])/\1/g;
eval($evalstring);
die "Subst eval failed: $@\neval_string=$eval_string\n" if $@;
$Blk_txt[$B] = $_;
}
}
}
\end{code}
\subsection[Finding_codethings]{Finding interesting codethings}
This code passes over the input looking for ``interesting''
definitions and uses of things in the code (``interesting'' and
``things'' depending on @$Code_lang@, modified by @$Lang_xref@ cues).
It records this information in
@Sec_codethings_defd[$S]@, @Sec_codethings_used[$S]@
@Blk_codethings_defd[$B]@, and @Blk_codethings_used[$B]@
(long lists of names of codethings).
This info is used for indexing during processing and for
cross-referencing during linking.
\begin{code}
sub find_interesting_codethings {
foreach ($S = 0; $S <= $#Sec_depth; $S++) {
foreach ($B = $Sec_first_blk[$S]; $B <= $Sec_last_blk[$S]; $B++) {
if ($Blk_type[$B] eq 'code') {
# language-specific...
&add_code_interests($S, $B, $Blk_txt[$B]);
# for uses, rm duplicates
if ($Blk_codethings_used[$B]) {
$Blk_codethings_used[$B] =
&tidy_codething_list($Blk_codethings_used[$B]);
}
}
}
if ($Sec_codethings_used[$S]) { # tidy, as well
$Sec_codethings_used[$S] =
&tidy_codething_list($Sec_codethings_used[$S]);
}
}
}
sub std_codething_uses_check {
# section and blk to record in ($s == -1: don't update) + the code
local($s, $b, $_) = @_;
local($uses_to_return) = '';
# ANY identifier (> 2 chars) not in (presumably language-specific)
# IGNORE_WD table is recorded as being "used"
while (/([A-Za-z][A-Za-z0-9_']{2,})/) {
local($interesting_thing) = $1;
if ( ! defined($IGNORE_WD{$interesting_thing})) {
if ($s != -1) {
$Blk_codethings_used[$b] .= "$interesting_thing\001";
$Sec_codethings_used[$s] .= "$interesting_thing\001";
} else {
$uses_to_return .= "$interesting_thing\001";
}
}
s/$interesting_thing//;
}
$uses_to_return;
}
sub tidy_codething_list {
local($unsorted_list) = @_;
local(@sorted_list) = sort(split(/\001/,$unsorted_list));
local($prev_thing) = '';
local($s);
foreach $s (@sorted_list) {
if ($s eq $prev_thing) {
$prev_thing = $s;
$s = '';
} else {
$prev_thing = $s;
}
}
local($outlist) = join("\001",@sorted_list);
$outlist =~ s/\001\001+/\001/g;
$outlist;
}
\end{code}
\subsection[Generating_a_document]{Generating a Texinfo or \LaTeX{} document}
Code for when producing a document (either Texinfo or \LaTeX{}).
\begin{code}
sub print_intermed_document {
foreach ($S = 0; $S <= $#Sec_depth; $S++) {
&print_section_heading($S) if $Sec_nodename[$S];
foreach ($B = $Sec_first_blk[$S]; $B <= $Sec_last_blk[$S]; $B++) {
# report where we are (lang specific)
print &mk_line_directive($Blk_srcfile_name[$B],$Blk_srcfile_lineno[$B]);
if ($Blk_type[$B] eq 'txt') {
if ($Lit2texi) {
local($stuff,$idxstuff) =
&texinfoize_text($Blk_srcfile_name[$B],
$Blk_srcfile_lineno[$B],
$Blk_txt[$B]
);
if ($stuff =~ /\n$/) {
print "$stuff$idxstuff";
} else {
print "$stuff\n$idxstuff";
}
} else {
local($stuff,$idxstuff) =
&latexize_text($Blk_srcfile_name[$B],
$Blk_srcfile_lineno[$B],
$Blk_txt[$B]
);
print "$stuff$idxstuff"; # never a newline in between
}
} elsif ($Blk_type[$B] =~ /^(code|pseudocode)$/) {
local($what) = $1;
if ($what eq 'code' && $Blk_magic[$B] ne 'main') {
print "CODE FOR ",(($Blk_magic[$B] =~ /,/) ? "RIBBONS" : "RIBBON");
print ": ",$Blk_magic[$B],"\n\n"
if $Lit2texi;
print ": \\mbox\{\\tt\{\}",&verb2latex("\\tt",$Blk_magic[$B]),"\}\n\n"
if $Lit2latex;
}
&print_code_blk($Blk_txt[$B]) if $Lit2latex; # lang specific
&std_print_code_blk($Blk_txt[$B]) if $Lit2texi; # _always_
&print_index_entries_for_code_blk($B)
if $Lang_xref !~ /noindex/;
&print_latex_labels_for_code_blk_defs($B) if $Lit2latex;
# print "\\par\n" if $Lit2latex; # doubtful long-term value
} elsif ($Blk_type[$B] eq 'menu') {
if ($Lit2texi) { # menus only apply for Texinfo
print "\@menu\n";
print $Blk_txt[$B];
print "\@end menu\n";
}
} elsif ($Blk_type[$B] eq 'rawlatex') {
if ($Lit2latex) {
print "\001beginrawlatex\003\n";
print $Blk_txt[$B];
print "\001endrawlatex\003\n";
}
} elsif ($Blk_type[$B] eq 'tabular') {
if ($Lit2texi) {
local($text_stuff,$idx_stuff) = &texinfoize_table_body($Blk_txt[$B]);
print "\@example\n";
print &texinfoize_tabular($text_stuff);
print "\@end example\n$idx_stuff";
} else {
print "\\begin\{tabular\}",$Blk_magic[$B],"\n";
local($text_stuff,$idx_stuff) = &latexize_text($Blk_srcfile_name[$B],
$Blk_srcfile_lineno[$B],
$Blk_txt[$B]
);
print "$text_stuff\n\\end\{tabular\}\n$idx_stuff\n";
}
} elsif ($Blk_type[$B] =~ /verb$/) {
if ($Lit2texi) {
print "\@example\n",&texinfoize_verb($Blk_txt[$B]),"\@end example\n"
if $Blk_type[$B] eq 'verb';
print "\@format\n",&texinfoize_verb($Blk_txt[$B]),"\@end format\n"
if $Blk_type[$B] eq 'flushverb';
} else {
#new: nothing for flushverb yet
print "\\begin\{verbtext\}";
local($mangled_verb) = &verb2verbcode($Blk_txt[$B]);
if (($mangled_verb =~ s/\n/\n/g) >= 5) { # a terrible way to count lines
print "\\codeallowbreaks\{\}";
}
print "\n";
$mangled_verb =~ s/\n$//; # don't want newline before \end{verbtext}
print $mangled_verb;
print "\\end\{verbtext\}%\n";
#old:
# print "\\BeginLitVerb\n"
# if $Blk_type[$B] eq 'verb';
# print "\\BeginLitVerbNoIndent\n"
# if $Blk_type[$B] eq 'flushverb';
# local($mangled_verb) = "\\mbox\{\\tt\{\}" .
# &verb2latex("\\tt",$Blk_txt[$B]) .
# "\}";
# # chop junk off the end (nobody said life was easy)
# $mangled_verb =~ s/\\\\\n\\mbox\{\\tt\{\}\}$//;
# print $mangled_verb;
# print "\\EndLitVerb\n";
# print "\\par\n";
}
} elsif ($Blk_type ne '') { # let null ones through (?)
¬_OK($Blk_srcfile_name[$B], $Blk_srcfile_lineno[$B],
"unknown or unimplemented blk type: $Blk_type[$B]\n");
}
}
# end of section stuff would go here, e.g., where
# ref'd ribbons can be found (?)
}
}
\end{code}
\subsection[Other_doc_only_code]{Other code for document generation}
\begin{code}
sub print_section_heading { # dump the collected info for this section
local($s) = @_;
# fix up section/node's owner if necessary (recorded in first blk, I hope...)
if ($Show_node_owner && ! $Sec_owner[$s]) {
local($srcfile) = $Blk_srcfile_name[$Sec_first_blk[$s]];
if (! defined($srcfile) || ! -f $srcfile) {
¬_OK("","","can't find source file: $srcfile\n");
} else {
local(@srcfile_stats) = stat($srcfile);
local(@owner_stuff) = getpwuid($srcfile_stats[4]);
$Sec_owner[$s] = $owner_stuff[0];
}
}
chop($Sec_aliases[$S]) if $Sec_aliases[$S];
local($guessname,$guessline) = ('',-1);
# try to guess where \section command is
if (($Sec_first_blk[$S] >= $Sec_last_blk[$S])
&& (! &empty_blk_p($Sec_first_blk[$S]) )) {
$guessname = $Blk_srcfile_name[$Sec_first_blk[$S]];
$guessline = ($Blk_srcfile_lineno[$Sec_first_blk[$S]] - 1);
}
print "\001section\003",$Sec_depth[$s],
"\002",$Sec_nodename[$s],
"\002",$Sec_nodespec[$s],
# I doubt that texinfoize_text call... (idx_stuff?)
"\002",(($Lit2texi) ? &texinfoize_text('???','???',$Sec_owner[$s])
: $Sec_owner[$s]),
"\002",&de_newlined($Sec_extra_menu_entries[$s]),
"\002",$Sec_codethings_defd[$S],
"\002",$Sec_aliases[$S],
"\002",$Sec_codethings_used[$S],
"\002",$guessname,
"#%%#",$guessline,
"#%%#";
local($fixed_title) = $Sec_title[$s];
if ($Lit2latex) {
local($title,$idx_stuff) = &latexize_text("???","???",$fixed_title);
print "{$title}";
# no label if funny chars found inside !!!
# (perhaps a warning?)
print "\\label{",$Sec_nodename[$s],"}" if $Sec_nodename[$s] !~ /[\\\{\}\$\%]/;
print "\n$idx_stuff";
} else { # $Lit2texi
local($title,$idxtitle) = &texinfoize_text('???','???',$fixed_title);
print " $title\n$idxtitle";
}
}
sub print_index_entries_for_code_blk {
# see also print_latex_labels_for_code_blk_defs
local($b) = @_;
# print an index entry for each definition in this code blk
local($d);
foreach $d (split(/\001/, $Blk_codethings_defd[$b])) {
if ($d && $Lit2texi) {
print "\@cindex ".&mk_texi_index_entry("$d [def]")."\n";
} elsif ($d) {
# thinking about a "\|ttunderline" in there, too...
print "\\index\{".&mk_latex_index_entry('tt',$d)."\|underline\}\%\n";
}
}
# print the uses that want indexing
# this cannot be done until linking time
print "\001index_uses\003",$Blk_codethings_used[$b],"\n"
if $Blk_codethings_used[$b];
# we want this for xrefs too -- but only those not def'd here
if ($Lit2latex && $Blk_codethings_used[$b]) {
local(@far_use) = split(/\001/,$Blk_codethings_used[$b]);
local($f);
foreach $f (@far_use) { # a good enough check ?
if ( ($Blk_codethings_defd[$b] =~ /^$f/)
|| ($Blk_codethings_defd[$b] =~ /$f$/)
|| ($Blk_codethings_defd[$b] =~ /\001$f\001/)) {
$f = '';
}
}
$f = join("\001join\003",@far_use); # join & tidy up
$f =~ s/(\001join\003){2,}/\001join\003/g;
$f =~ s/^\001join\003//;
$f =~ s/\001join\003$//;
$f =~ s/\001join\003/\001/g;
print "\001xref_uses\003$f\n" if $f;
}
}
sub fiddle_sectiontypes {
local($_) = @_;
# \[Ss]ectiontype; rm shorthand first
s/\\([Ss])ectionref\{([^\}]+)\}/\\\1ectiontype\{\2\}~\\ref\{\2\}/g;
# nothing else can be done until linking
$_;
}
# a trailing 1 seems to be the habit for inc'd perl files
1;
\end{code}
|