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129 | .\" ======================================================================== | |
130 | .\" | |
131 | .IX Title "PERLPLAN9 1" | |
132 | .TH PERLPLAN9 1 "2006-01-07" "perl v5.8.8" "Perl Programmers Reference Guide" | |
133 | .SH "NAME" | |
134 | perlplan9 \- Plan 9\-specific documentation for Perl | |
135 | .SH "DESCRIPTION" | |
136 | .IX Header "DESCRIPTION" | |
137 | These are a few notes describing features peculiar to | |
138 | Plan 9 Perl. As such, it is not intended to be a replacement | |
139 | for the rest of the Perl 5 documentation (which is both | |
140 | copious and excellent). If you have any questions to | |
141 | which you can't find answers in these man pages, contact | |
142 | Luther Huffman at lutherh@stratcom.com and we'll try to | |
143 | answer them. | |
144 | .Sh "Invoking Perl" | |
145 | .IX Subsection "Invoking Perl" | |
146 | Perl is invoked from the command line as described in | |
147 | perl. Most perl scripts, however, do have a first line | |
148 | such as \*(L"#!/usr/local/bin/perl\*(R". This is known as a shebang | |
149 | (shell\-bang) statement and tells the \s-1OS\s0 shell where to find | |
150 | the perl interpreter. In Plan 9 Perl this statement should be | |
151 | \&\*(L"#!/bin/perl\*(R" if you wish to be able to directly invoke the | |
152 | script by its name. | |
153 | Alternatively, you may invoke perl with the command \*(L"Perl\*(R" | |
154 | instead of \*(L"perl\*(R". This will produce Acme-friendly error | |
155 | messages of the form \*(L"filename:18\*(R". | |
156 | .PP | |
157 | Some scripts, usually identified with a *.PL extension, are | |
158 | self-configuring and are able to correctly create their own | |
159 | shebang path from config information located in Plan 9 | |
160 | Perl. These you won't need to be worried about. | |
161 | .Sh "What's in Plan 9 Perl" | |
162 | .IX Subsection "What's in Plan 9 Perl" | |
163 | Although Plan 9 Perl currently only provides static | |
164 | loading, it is built with a number of useful extensions. | |
165 | These include Opcode, FileHandle, Fcntl, and \s-1POSIX\s0. Expect | |
166 | to see others (and DynaLoading!) in the future. | |
167 | .Sh "What's not in Plan 9 Perl" | |
168 | .IX Subsection "What's not in Plan 9 Perl" | |
169 | As mentioned previously, dynamic loading isn't currently | |
170 | available nor is MakeMaker. Both are high-priority items. | |
171 | .Sh "Perl5 Functions not currently supported in Plan 9 Perl" | |
172 | .IX Subsection "Perl5 Functions not currently supported in Plan 9 Perl" | |
173 | Some, such as \f(CW\*(C`chown\*(C'\fR and \f(CW\*(C`umask\*(C'\fR aren't provided | |
174 | because the concept does not exist within Plan 9. Others, | |
175 | such as some of the socket-related functions, simply | |
176 | haven't been written yet. Many in the latter category | |
177 | may be supported in the future. | |
178 | .PP | |
179 | The functions not currently implemented include: | |
180 | .PP | |
181 | .Vb 5 | |
182 | \& chown, chroot, dbmclose, dbmopen, getsockopt, | |
183 | \& setsockopt, recvmsg, sendmsg, getnetbyname, | |
184 | \& getnetbyaddr, getnetent, getprotoent, getservent, | |
185 | \& sethostent, setnetent, setprotoent, setservent, | |
186 | \& endservent, endnetent, endprotoent, umask | |
187 | .Ve | |
188 | .PP | |
189 | There may be several other functions that have undefined | |
190 | behavior so this list shouldn't be considered complete. | |
191 | .Sh "Signals in Plan 9 Perl" | |
192 | .IX Subsection "Signals in Plan 9 Perl" | |
193 | For compatibility with perl scripts written for the Unix | |
194 | environment, Plan 9 Perl uses the \s-1POSIX\s0 signal emulation | |
195 | provided in Plan 9's \s-1ANSI\s0 \s-1POSIX\s0 Environment (\s-1APE\s0). Signal stacking | |
196 | isn't supported. The signals provided are: | |
197 | .PP | |
198 | .Vb 4 | |
199 | \& SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGABRT, | |
200 | \& SIGFPE, SIGKILL, SIGSEGV, SIGPIPE, SIGPIPE, SIGALRM, | |
201 | \& SIGTERM, SIGUSR1, SIGUSR2, SIGCHLD, SIGCONT, | |
202 | \& SIGSTOP, SIGTSTP, SIGTTIN, SIGTTOU | |
203 | .Ve | |
204 | .SH "COMPILING AND INSTALLING PERL ON PLAN 9" | |
205 | .IX Header "COMPILING AND INSTALLING PERL ON PLAN 9" | |
206 | \&\s-1WELCOME\s0 to Plan 9 Perl, brave soul! | |
207 | .PP | |
208 | .Vb 5 | |
209 | \& This is a preliminary alpha version of Plan 9 Perl. Still to be | |
210 | \&implemented are MakeMaker and DynaLoader. Many perl commands are | |
211 | \&missing or currently behave in an inscrutable manner. These gaps will, | |
212 | \&with perseverance and a modicum of luck, be remedied in the near | |
213 | \&future.To install this software: | |
214 | .Ve | |
215 | .PP | |
216 | 1. Create the source directories and libraries for perl by running the | |
217 | plan9/setup.rc command (i.e., located in the plan9 subdirectory). | |
218 | Note: the setup routine assumes that you haven't dearchived these | |
219 | files into /sys/src/cmd/perl. After running setup.rc you may delete | |
220 | the copy of the source you originally detarred, as source code has now | |
221 | been installed in /sys/src/cmd/perl. If you plan on installing perl | |
222 | binaries for all architectures, run \*(L"setup.rc \-a\*(R". | |
223 | .PP | |
224 | 2. After making sure that you have adequate privileges to build system | |
225 | software, from /sys/src/cmd/perl/5.00301 (adjust version | |
226 | appropriately) run: | |
227 | .PP | |
228 | .Vb 1 | |
229 | \& mk install | |
230 | .Ve | |
231 | .PP | |
232 | If you wish to install perl versions for all architectures (68020, | |
233 | mips, sparc and 386) run: | |
234 | .PP | |
235 | .Vb 1 | |
236 | \& mk installall | |
237 | .Ve | |
238 | .PP | |
239 | 3. Wait. The build process will take a *long* time because perl | |
240 | bootstraps itself. A 75MHz Pentium, 16MB \s-1RAM\s0 machine takes roughly 30 | |
241 | minutes to build the distribution from scratch. | |
242 | .Sh "Installing Perl Documentation on Plan 9" | |
243 | .IX Subsection "Installing Perl Documentation on Plan 9" | |
244 | This perl distribution comes with a tremendous amount of | |
245 | documentation. To add these to the built-in manuals that come with | |
246 | Plan 9, from /sys/src/cmd/perl/5.00301 (adjust version appropriately) | |
247 | run: | |
248 | .PP | |
249 | .Vb 1 | |
250 | \& mk man | |
251 | .Ve | |
252 | .PP | |
253 | To begin your reading, start with: | |
254 | .PP | |
255 | .Vb 1 | |
256 | \& man perl | |
257 | .Ve | |
258 | .PP | |
259 | This is a good introduction and will direct you towards other man | |
260 | pages that may interest you. | |
261 | .PP | |
262 | (Note: \*(L"mk man\*(R" may produce some extraneous noise. Fear not.) | |
263 | .SH "BUGS" | |
264 | .IX Header "BUGS" | |
265 | \&\*(L"As many as there are grains of sand on all the beaches of the | |
266 | world . . .\*(R" \- Carl Sagan | |
267 | .SH "Revision date" | |
268 | .IX Header "Revision date" | |
269 | This document was revised 09\-October\-1996 for Perl 5.003_7. | |
270 | .SH "AUTHOR" | |
271 | .IX Header "AUTHOR" | |
272 | Direct questions, comments, and the unlikely bug report (ahem) direct | |
273 | comments toward: | |
274 | .PP | |
275 | Luther Huffman, lutherh@stratcom.com, | |
276 | Strategic Computer Solutions, Inc. |