A C standard library for sh3eb-elf.
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  1. #! /usr/bin/perl -w
  2. # Copyright (C) 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
  3. # This file is part of GCC.
  4. # GCC is free software; you can redistribute it and/or modify
  5. # it under the terms of the GNU General Public License as published by
  6. # the Free Software Foundation; either version 2, or (at your option)
  7. # any later version.
  8. # GCC is distributed in the hope that it will be useful,
  9. # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11. # GNU General Public License for more details.
  12. # You should have received a copy of the GNU General Public License
  13. # along with GCC; see the file COPYING. If not, write to
  14. # the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  15. # Boston MA 02110-1301, USA.
  16. # This does trivial (and I mean _trivial_) conversion of Texinfo
  17. # markup to Perl POD format. It's intended to be used to extract
  18. # something suitable for a manpage from a Texinfo document.
  19. $output = 0;
  20. $skipping = 0;
  21. %sects = ();
  22. $section = "";
  23. @icstack = ();
  24. @endwstack = ();
  25. @skstack = ();
  26. @instack = ();
  27. $shift = "";
  28. %defs = ();
  29. $fnno = 1;
  30. $inf = "";
  31. $ibase = "";
  32. @ipath = ();
  33. while ($_ = shift) {
  34. if (/^-D(.*)$/) {
  35. if ($1 ne "") {
  36. $flag = $1;
  37. } else {
  38. $flag = shift;
  39. }
  40. $value = "";
  41. ($flag, $value) = ($flag =~ /^([^=]+)(?:=(.+))?/);
  42. die "no flag specified for -D\n"
  43. unless $flag ne "";
  44. die "flags may only contain letters, digits, hyphens, dashes and underscores\n"
  45. unless $flag =~ /^[a-zA-Z0-9_-]+$/;
  46. $defs{$flag} = $value;
  47. } elsif (/^-I(.*)$/) {
  48. if ($1 ne "") {
  49. $flag = $1;
  50. } else {
  51. $flag = shift;
  52. }
  53. push (@ipath, $flag);
  54. } elsif (/^-/) {
  55. usage();
  56. } else {
  57. $in = $_, next unless defined $in;
  58. $out = $_, next unless defined $out;
  59. usage();
  60. }
  61. }
  62. if (defined $in) {
  63. $inf = gensym();
  64. open($inf, "<$in") or die "opening \"$in\": $!\n";
  65. $ibase = $1 if $in =~ m|^(.+)/[^/]+$|;
  66. } else {
  67. $inf = \*STDIN;
  68. }
  69. if (defined $out) {
  70. open(STDOUT, ">$out") or die "opening \"$out\": $!\n";
  71. }
  72. while(defined $inf) {
  73. while(<$inf>) {
  74. # Certain commands are discarded without further processing.
  75. /^\@(?:
  76. [a-z]+index # @*index: useful only in complete manual
  77. |need # @need: useful only in printed manual
  78. |(?:end\s+)?group # @group .. @end group: ditto
  79. |page # @page: ditto
  80. |node # @node: useful only in .info file
  81. |(?:end\s+)?ifnottex # @ifnottex .. @end ifnottex: use contents
  82. )\b/x and next;
  83. chomp;
  84. # Look for filename and title markers.
  85. /^\@setfilename\s+([^.]+)/ and $fn = $1, next;
  86. /^\@settitle\s+([^.]+)/ and $tl = postprocess($1), next;
  87. # Identify a man title but keep only the one we are interested in.
  88. /^\@c\s+man\s+title\s+([A-Za-z0-9-]+)\s+(.+)/ and do {
  89. if (exists $defs{$1}) {
  90. $fn = $1;
  91. $tl = postprocess($2);
  92. }
  93. next;
  94. };
  95. # Look for blocks surrounded by @c man begin SECTION ... @c man end.
  96. # This really oughta be @ifman ... @end ifman and the like, but such
  97. # would require rev'ing all other Texinfo translators.
  98. /^\@c\s+man\s+begin\s+([A-Z]+)\s+([A-Za-z0-9-]+)/ and do {
  99. $output = 1 if exists $defs{$2};
  100. $sect = $1;
  101. next;
  102. };
  103. /^\@c\s+man\s+begin\s+([A-Z]+)/ and $sect = $1, $output = 1, next;
  104. /^\@c\s+man\s+end/ and do {
  105. $sects{$sect} = "" unless exists $sects{$sect};
  106. $sects{$sect} .= postprocess($section);
  107. $section = "";
  108. $output = 0;
  109. next;
  110. };
  111. # handle variables
  112. /^\@set\s+([a-zA-Z0-9_-]+)\s*(.*)$/ and do {
  113. $defs{$1} = $2;
  114. next;
  115. };
  116. /^\@clear\s+([a-zA-Z0-9_-]+)/ and do {
  117. delete $defs{$1};
  118. next;
  119. };
  120. next unless $output;
  121. # Discard comments. (Can't do it above, because then we'd never see
  122. # @c man lines.)
  123. /^\@c\b/ and next;
  124. # End-block handler goes up here because it needs to operate even
  125. # if we are skipping.
  126. /^\@end\s+([a-z]+)/ and do {
  127. # Ignore @end foo, where foo is not an operation which may
  128. # cause us to skip, if we are presently skipping.
  129. my $ended = $1;
  130. next if $skipping && $ended !~ /^(?:ifset|ifclear|ignore|menu|iftex|copying)$/;
  131. die "\@end $ended without \@$ended at line $.\n" unless defined $endw;
  132. die "\@$endw ended by \@end $ended at line $.\n" unless $ended eq $endw;
  133. $endw = pop @endwstack;
  134. if ($ended =~ /^(?:ifset|ifclear|ignore|menu|iftex)$/) {
  135. $skipping = pop @skstack;
  136. next;
  137. } elsif ($ended =~ /^(?:example|smallexample|display)$/) {
  138. $shift = "";
  139. $_ = ""; # need a paragraph break
  140. } elsif ($ended =~ /^(?:itemize|enumerate|[fv]?table)$/) {
  141. $_ = "\n=back\n";
  142. $ic = pop @icstack;
  143. } elsif ($ended eq "multitable") {
  144. $_ = "\n=back\n";
  145. } else {
  146. die "unknown command \@end $ended at line $.\n";
  147. }
  148. };
  149. # We must handle commands which can cause skipping even while we
  150. # are skipping, otherwise we will not process nested conditionals
  151. # correctly.
  152. /^\@ifset\s+([a-zA-Z0-9_-]+)/ and do {
  153. push @endwstack, $endw;
  154. push @skstack, $skipping;
  155. $endw = "ifset";
  156. $skipping = 1 unless exists $defs{$1};
  157. next;
  158. };
  159. /^\@ifclear\s+([a-zA-Z0-9_-]+)/ and do {
  160. push @endwstack, $endw;
  161. push @skstack, $skipping;
  162. $endw = "ifclear";
  163. $skipping = 1 if exists $defs{$1};
  164. next;
  165. };
  166. /^\@(ignore|menu|iftex|copying)\b/ and do {
  167. push @endwstack, $endw;
  168. push @skstack, $skipping;
  169. $endw = $1;
  170. $skipping = 1;
  171. next;
  172. };
  173. next if $skipping;
  174. # Character entities. First the ones that can be replaced by raw text
  175. # or discarded outright:
  176. s/\@copyright\{\}/(c)/g;
  177. s/\@dots\{\}/.../g;
  178. s/\@enddots\{\}/..../g;
  179. s/\@([.!? ])/$1/g;
  180. s/\@[:-]//g;
  181. s/\@bullet(?:\{\})?/*/g;
  182. s/\@TeX\{\}/TeX/g;
  183. s/\@pounds\{\}/\#/g;
  184. s/\@minus(?:\{\})?/-/g;
  185. s/\\,/,/g;
  186. # Now the ones that have to be replaced by special escapes
  187. # (which will be turned back into text by unmunge())
  188. s/&/&amp;/g;
  189. s/\@\{/&lbrace;/g;
  190. s/\@\}/&rbrace;/g;
  191. s/\@\@/&at;/g;
  192. # Inside a verbatim block, handle @var specially.
  193. if ($shift ne "") {
  194. s/\@var\{([^\}]*)\}/<$1>/g;
  195. }
  196. # POD doesn't interpret E<> inside a verbatim block.
  197. if ($shift eq "") {
  198. s/</&lt;/g;
  199. s/>/&gt;/g;
  200. } else {
  201. s/</&LT;/g;
  202. s/>/&GT;/g;
  203. }
  204. # Single line command handlers.
  205. /^\@include\s+(.+)$/ and do {
  206. push @instack, $inf;
  207. $inf = gensym();
  208. $file = postprocess($1);
  209. # Try cwd and $ibase, then explicit -I paths.
  210. $done = 0;
  211. foreach $path ("", $ibase, @ipath) {
  212. $mypath = $file;
  213. $mypath = $path . "/" . $mypath if ($path ne "");
  214. open($inf, "<" . $mypath) and ($done = 1, last);
  215. }
  216. die "cannot find $file" if !$done;
  217. next;
  218. };
  219. /^\@(?:section|unnumbered|unnumberedsec|center)\s+(.+)$/
  220. and $_ = "\n=head2 $1\n";
  221. /^\@subsection\s+(.+)$/
  222. and $_ = "\n=head3 $1\n";
  223. /^\@subsubsection\s+(.+)$/
  224. and $_ = "\n=head4 $1\n";
  225. # Block command handlers:
  226. /^\@itemize(?:\s+(\@[a-z]+|\*|-))?/ and do {
  227. push @endwstack, $endw;
  228. push @icstack, $ic;
  229. if (defined $1) {
  230. $ic = $1;
  231. } else {
  232. $ic = '*';
  233. }
  234. $_ = "\n=over 4\n";
  235. $endw = "itemize";
  236. };
  237. /^\@enumerate(?:\s+([a-zA-Z0-9]+))?/ and do {
  238. push @endwstack, $endw;
  239. push @icstack, $ic;
  240. if (defined $1) {
  241. $ic = $1 . ".";
  242. } else {
  243. $ic = "1.";
  244. }
  245. $_ = "\n=over 4\n";
  246. $endw = "enumerate";
  247. };
  248. /^\@multitable\s.*/ and do {
  249. push @endwstack, $endw;
  250. $endw = "multitable";
  251. $_ = "\n=over 4\n";
  252. };
  253. /^\@([fv]?table)\s+(\@[a-z]+)/ and do {
  254. push @endwstack, $endw;
  255. push @icstack, $ic;
  256. $endw = $1;
  257. $ic = $2;
  258. $ic =~ s/\@(?:samp|strong|key|gcctabopt|env)/B/;
  259. $ic =~ s/\@(?:code|kbd)/C/;
  260. $ic =~ s/\@(?:dfn|var|emph|cite|i)/I/;
  261. $ic =~ s/\@(?:file)/F/;
  262. $_ = "\n=over 4\n";
  263. };
  264. /^\@((?:small)?example|display)/ and do {
  265. push @endwstack, $endw;
  266. $endw = $1;
  267. $shift = "\t";
  268. $_ = ""; # need a paragraph break
  269. };
  270. /^\@item\s+(.*\S)\s*$/ and $endw eq "multitable" and do {
  271. @columns = ();
  272. for $column (split (/\s*\@tab\s*/, $1)) {
  273. # @strong{...} is used a @headitem work-alike
  274. $column =~ s/^\@strong{(.*)}$/$1/;
  275. push @columns, $column;
  276. }
  277. $_ = "\n=item ".join (" : ", @columns)."\n";
  278. };
  279. /^\@itemx?\s*(.+)?$/ and do {
  280. if (defined $1) {
  281. # Entity escapes prevent munging by the <> processing below.
  282. $_ = "\n=item $ic\&LT;$1\&GT;\n";
  283. } else {
  284. $_ = "\n=item $ic\n";
  285. $ic =~ y/A-Ya-y/B-Zb-z/;
  286. $ic =~ s/(\d+)/$1 + 1/eg;
  287. }
  288. };
  289. $section .= $shift.$_."\n";
  290. }
  291. # End of current file.
  292. close($inf);
  293. $inf = pop @instack;
  294. }
  295. die "No filename or title\n" unless defined $fn && defined $tl;
  296. $sects{NAME} = "$fn \- $tl\n";
  297. $sects{FOOTNOTES} .= "=back\n" if exists $sects{FOOTNOTES};
  298. for $sect (qw(NAME SYNOPSIS TARGET DESCRIPTION OPTIONS ENVIRONMENT FILES
  299. BUGS NOTES FOOTNOTES SEEALSO AUTHOR COPYRIGHT)) {
  300. if(exists $sects{$sect}) {
  301. $head = $sect;
  302. $head =~ s/SEEALSO/SEE ALSO/;
  303. print "=head1 $head\n\n";
  304. print scalar unmunge ($sects{$sect});
  305. print "\n";
  306. }
  307. }
  308. sub usage
  309. {
  310. die "usage: $0 [-D toggle...] [infile [outfile]]\n";
  311. }
  312. sub postprocess
  313. {
  314. local $_ = $_[0];
  315. # @value{foo} is replaced by whatever 'foo' is defined as.
  316. while (m/(\@value\{([a-zA-Z0-9_-]+)\})/g) {
  317. if (! exists $defs{$2}) {
  318. print STDERR "Option $2 not defined\n";
  319. s/\Q$1\E//;
  320. } else {
  321. $value = $defs{$2};
  322. s/\Q$1\E/$value/;
  323. }
  324. }
  325. # Formatting commands.
  326. # Temporary escape for @r.
  327. s/\@r\{([^\}]*)\}/R<$1>/g;
  328. s/\@(?:dfn|var|emph|cite|i)\{([^\}]*)\}/I<$1>/g;
  329. s/\@(?:code|kbd)\{([^\}]*)\}/C<$1>/g;
  330. s/\@(?:gccoptlist|samp|strong|key|option|env|command|b)\{([^\}]*)\}/B<$1>/g;
  331. s/\@sc\{([^\}]*)\}/\U$1/g;
  332. s/\@file\{([^\}]*)\}/F<$1>/g;
  333. s/\@w\{([^\}]*)\}/S<$1>/g;
  334. s/\@(?:dmn|math)\{([^\}]*)\}/$1/g;
  335. # keep references of the form @ref{...}, print them bold
  336. s/\@(?:ref)\{([^\}]*)\}/B<$1>/g;
  337. # Change double single quotes to double quotes.
  338. s/''/"/g;
  339. s/``/"/g;
  340. # Cross references are thrown away, as are @noindent and @refill.
  341. # (@noindent is impossible in .pod, and @refill is unnecessary.)
  342. # @* is also impossible in .pod; we discard it and any newline that
  343. # follows it. Similarly, our macro @gol must be discarded.
  344. s/\(?\@xref\{(?:[^\}]*)\}(?:[^.<]|(?:<[^<>]*>))*\.\)?//g;
  345. s/\s+\(\@pxref\{(?:[^\}]*)\}\)//g;
  346. s/;\s+\@pxref\{(?:[^\}]*)\}//g;
  347. s/\@noindent\s*//g;
  348. s/\@refill//g;
  349. s/\@gol//g;
  350. s/\@\*\s*\n?//g;
  351. # Anchors are thrown away
  352. s/\@anchor\{(?:[^\}]*)\}//g;
  353. # @uref can take one, two, or three arguments, with different
  354. # semantics each time. @url and @email are just like @uref with
  355. # one argument, for our purposes.
  356. s/\@(?:uref|url|email)\{([^\},]*)\}/&lt;B<$1>&gt;/g;
  357. s/\@uref\{([^\},]*),([^\},]*)\}/$2 (C<$1>)/g;
  358. s/\@uref\{([^\},]*),([^\},]*),([^\},]*)\}/$3/g;
  359. # Un-escape <> at this point.
  360. s/&LT;/</g;
  361. s/&GT;/>/g;
  362. # Now un-nest all B<>, I<>, R<>. Theoretically we could have
  363. # indefinitely deep nesting; in practice, one level suffices.
  364. 1 while s/([BIR])<([^<>]*)([BIR])<([^<>]*)>/$1<$2>$3<$4>$1</g;
  365. # Replace R<...> with bare ...; eliminate empty markup, B<>;
  366. # shift white space at the ends of [BI]<...> expressions outside
  367. # the expression.
  368. s/R<([^<>]*)>/$1/g;
  369. s/[BI]<>//g;
  370. s/([BI])<(\s+)([^>]+)>/$2$1<$3>/g;
  371. s/([BI])<([^>]+?)(\s+)>/$1<$2>$3/g;
  372. # Extract footnotes. This has to be done after all other
  373. # processing because otherwise the regexp will choke on formatting
  374. # inside @footnote.
  375. while (/\@footnote/g) {
  376. s/\@footnote\{([^\}]+)\}/[$fnno]/;
  377. add_footnote($1, $fnno);
  378. $fnno++;
  379. }
  380. return $_;
  381. }
  382. sub unmunge
  383. {
  384. # Replace escaped symbols with their equivalents.
  385. local $_ = $_[0];
  386. s/&lt;/E<lt>/g;
  387. s/&gt;/E<gt>/g;
  388. s/&lbrace;/\{/g;
  389. s/&rbrace;/\}/g;
  390. s/&at;/\@/g;
  391. s/&amp;/&/g;
  392. return $_;
  393. }
  394. sub add_footnote
  395. {
  396. unless (exists $sects{FOOTNOTES}) {
  397. $sects{FOOTNOTES} = "\n=over 4\n\n";
  398. }
  399. $sects{FOOTNOTES} .= "=item $fnno.\n\n"; $fnno++;
  400. $sects{FOOTNOTES} .= $_[0];
  401. $sects{FOOTNOTES} .= "\n\n";
  402. }
  403. # stolen from Symbol.pm
  404. {
  405. my $genseq = 0;
  406. sub gensym
  407. {
  408. my $name = "GEN" . $genseq++;
  409. my $ref = \*{$name};
  410. delete $::{$name};
  411. return $ref;
  412. }
  413. }