| 1 | If you read this file _as_is_, just ignore the funny characters you |
| 2 | see. It is written in the POD format (see perlpod manpage) which is |
| 3 | specially designed to be readable as is. |
| 4 | |
| 5 | =head1 NAME |
| 6 | |
| 7 | README.mpeix - Perl/iX for HP e3000 MPE |
| 8 | |
| 9 | =head1 SYNOPSIS |
| 10 | |
| 11 | http://www.bixby.org/mark/perlix.html |
| 12 | http://jazz.external.hp.com/src/hp_freeware/perl/ |
| 13 | Perl language for MPE |
| 14 | Last updated July 29, 2003 @ 2100 UTC |
| 15 | |
| 16 | =head1 NOTE |
| 17 | |
| 18 | This is a podified version of the above-mentioned web page, |
| 19 | podified by Jarkko Hietaniemi 2001-Jan-01. |
| 20 | |
| 21 | =head1 Binary distribution from HP |
| 22 | |
| 23 | The simplest way to obtain Perl for the MPE/iX is to go either of |
| 24 | these URLs and follow the instructions within. |
| 25 | |
| 26 | http://jazz.external.hp.com/src/hp_freeware/perl/ |
| 27 | http://www.bixby.org/mark/perlix.html |
| 28 | |
| 29 | Use which ever one is more recent. |
| 30 | |
| 31 | |
| 32 | =head1 What's New in Perl for MPE/iX |
| 33 | |
| 34 | June 1, 2000 |
| 35 | |
| 36 | =over 4 |
| 37 | |
| 38 | =item * |
| 39 | |
| 40 | Rebuilt to be compatible with mod_perl. If you plan on using |
| 41 | mod_perl, you MUST download and install this version of Perl/iX! |
| 42 | |
| 43 | =item * |
| 44 | |
| 45 | uselargefiles="undef": not available in MPE for POSIX files yet. |
| 46 | |
| 47 | =item * |
| 48 | |
| 49 | Now bundled with various add-on packages: |
| 50 | |
| 51 | =over 8 |
| 52 | |
| 53 | =item * |
| 54 | |
| 55 | libnet (as seen on CPAN) |
| 56 | |
| 57 | =item * |
| 58 | |
| 59 | libwww-perl (LWP) which lets Perl programs behave like web browsers: |
| 60 | |
| 61 | 1. #!/PERL/PUB/perl |
| 62 | 2. use LWP::Simple; |
| 63 | 3. $doc = get('http://www.bixby.org/mark/perlix.html'); # reads the |
| 64 | web page into variable $doc |
| 65 | |
| 66 | (http://www.bixby.org/mark/perlix.html) |
| 67 | |
| 68 | =item * |
| 69 | |
| 70 | mod_perl (just the perl portion; the actual DSO will be released |
| 71 | soon with Apache/iX 1.3.12 from bixby.org). This module allows you to |
| 72 | write high performance persistent Perl CGI scripts and all sorts of |
| 73 | cool things. (http://perl.apache.org/) |
| 74 | |
| 75 | and much much more hiding under /PERL/PUB/.cpan/ |
| 76 | |
| 77 | =item * |
| 78 | |
| 79 | The CPAN module now works for automatic downloading and |
| 80 | installing of add-on packages: |
| 81 | |
| 82 | 1. export FTP_PASSIVE=1 |
| 83 | 2. perl -MCPAN -e shell |
| 84 | 3. Ignore any terminal I/O related complaints! |
| 85 | |
| 86 | (http://theoryx5.uwinnipeg.ca/CPAN/data/perl/CPAN.html) |
| 87 | |
| 88 | =back |
| 89 | |
| 90 | =back |
| 91 | |
| 92 | May 20, 2000 |
| 93 | |
| 94 | =over 4 |
| 95 | |
| 96 | =item * |
| 97 | |
| 98 | Updated to version 5.6.0. Builds straight out of the box on MPE/iX. |
| 99 | |
| 100 | =item * |
| 101 | |
| 102 | Perl's getpwnam() function which had regressed to being |
| 103 | unimplemented on MPE is now implemented once again. |
| 104 | |
| 105 | =back |
| 106 | |
| 107 | September 17, 1999 |
| 108 | |
| 109 | =over 4 |
| 110 | |
| 111 | =item * |
| 112 | |
| 113 | Migrated from cccd.edu to bixby.org. |
| 114 | |
| 115 | =back |
| 116 | |
| 117 | =head1 Welcome to Perl/iX |
| 118 | |
| 119 | This is the official home page for the HP e3000 MPE/iX |
| 120 | ( http://www.hp.com/go/e3000 ) port of the Perl scripting |
| 121 | language ( http://www.perl.com/ ) which gives you all of the power of C, |
| 122 | awk, sed, and sh in a single language. Check here for the latest news, |
| 123 | implemented functionality, known bugs, to-do list, etc. Status reports |
| 124 | about major milestones will also be posted to the HP3000-L mailing list |
| 125 | ( http://www.lsoft.com/scripts/wl.exe?SL1=HP3000-L&H=RAVEN.UTC.EDU ) and |
| 126 | its associated gatewayed newsgroup comp.sys.hp.mpe. |
| 127 | |
| 128 | I'm doing this port because I can't live without Perl on the Unix |
| 129 | machines that I administer, and I want to have the same power |
| 130 | available to me on MPE. |
| 131 | |
| 132 | Please send your comments, questions, and bug reports directly to me, |
| 133 | Mark Bixby ( http://www.bixby.org/mark/ ). Or just post them to HP3000-L. |
| 134 | |
| 135 | The platform I'm using to do this port is an HP 3000 957RX running |
| 136 | MPE/iX 6.0 and using the GNU gcc C compiler |
| 137 | ( http://jazz.external.hp.com/src/gnu/gnuframe.html ). |
| 138 | |
| 139 | The combined porting wisdom from all of my ports can be found in my |
| 140 | MPE/iX Porting Guide (http://www.bixby.org/mark/porting.html). |
| 141 | |
| 142 | IMPORTANT NOTICE: Yes, I do work for the HP CSY R&D lab, but ALL of |
| 143 | the software you download from bixby.org is my personal freeware that |
| 144 | is NOT supported by HP. |
| 145 | |
| 146 | =head1 System Requirements for Perl/iX |
| 147 | |
| 148 | =over 4 |
| 149 | |
| 150 | =item * |
| 151 | |
| 152 | MPE/iX 5.5 or later. This version of Perl/iX does NOT run on |
| 153 | MPE/iX 5.0 or earlier, nor does it run on "classic" MPE/V machines. |
| 154 | |
| 155 | =item * |
| 156 | |
| 157 | If you wish to recompile Perl, you must install both GNUCORE and |
| 158 | GNUGCC from jazz (http://jazz.external.hp.com/src/gnu/gnuframe.html). |
| 159 | |
| 160 | =item * |
| 161 | |
| 162 | Perl/iX will be happier on MPE/iX 5.5 if you install the MPEKX40B |
| 163 | extended POSIX filename characters patch, but this is optional. |
| 164 | |
| 165 | =item * |
| 166 | |
| 167 | Patch LBCJXT6A is required on MPE/iX 5.5 machines in order to |
| 168 | prevent Perl/iX from dying with an unresolved external reference |
| 169 | to _getenv_libc. |
| 170 | |
| 171 | =item * |
| 172 | |
| 173 | If you will be compiling Perl/iX yourself, you will also need |
| 174 | Syslog/iX ( http://www.bixby.org/mark/syslogix.html ) and the |
| 175 | /BIND/PUB/include and /BIND/PUB/lib portions of BIND/iX |
| 176 | ( http://www.bixby.org/mark/bindix.html ). |
| 177 | |
| 178 | =back |
| 179 | |
| 180 | =head1 How to Obtain Perl/iX |
| 181 | |
| 182 | =over 4 |
| 183 | |
| 184 | =item 1. |
| 185 | |
| 186 | Download Perl using either FTP.ARPA.SYS or some other client |
| 187 | |
| 188 | =item 2. |
| 189 | |
| 190 | Extract the installation script |
| 191 | |
| 192 | =item 3. |
| 193 | |
| 194 | Edit the installation script |
| 195 | |
| 196 | =item 4. |
| 197 | |
| 198 | Run the installation script |
| 199 | |
| 200 | =item 5. |
| 201 | |
| 202 | Convert your *.a system archive libraries to *.sl shared libraries |
| 203 | |
| 204 | =back |
| 205 | |
| 206 | Download Perl using FTP.ARPA.SYS from your HP 3000 (the preferred |
| 207 | method)..... |
| 208 | |
| 209 | :HELLO MANAGER.SYS |
| 210 | :XEQ FTP.ARPA.SYS |
| 211 | open ftp.bixby.org |
| 212 | anonymous |
| 213 | your@email.address |
| 214 | bytestream |
| 215 | cd /pub/mpe |
| 216 | get perl-5.6.0-mpe.tar.Z /tmp/perl.tar.Z;disc=2147483647 |
| 217 | exit |
| 218 | |
| 219 | .....Or download using some other generic web or ftp client (the alternate |
| 220 | method) |
| 221 | |
| 222 | Download the following files (make sure that you use "binary mode" or |
| 223 | whatever client feature that is 8-bit clean): |
| 224 | |
| 225 | =over 4 |
| 226 | |
| 227 | =item * |
| 228 | |
| 229 | Perl from |
| 230 | |
| 231 | http://www.bixby.org/ftp/pub/mpe/perl-5.6.0-mpe.tar.Z |
| 232 | |
| 233 | or |
| 234 | |
| 235 | ftp://ftp.bixby.org/pub/mpe/perl-5.6.0-mpe.tar.Z |
| 236 | |
| 237 | =item * |
| 238 | |
| 239 | Upload those files to your HP 3000 in an 8-bit clean bytestream manner to: |
| 240 | |
| 241 | /tmp/perl.tar.Z |
| 242 | |
| 243 | =item * |
| 244 | |
| 245 | Then extract the installation script (after both download methods) |
| 246 | |
| 247 | :CHDIR /tmp |
| 248 | :XEQ TAR.HPBIN.SYS 'xvfopz /tmp/perl.tar.Z INSTALL' |
| 249 | |
| 250 | =item * |
| 251 | |
| 252 | Edit the installation script |
| 253 | |
| 254 | Examine the accounting structure creation commands and modify if |
| 255 | necessary (adding additional capabilities, choosing a non-system |
| 256 | volume set, etc). |
| 257 | |
| 258 | :XEQ VI.HPBIN.SYS /tmp/INSTALL |
| 259 | |
| 260 | =item * |
| 261 | |
| 262 | Run the installation script. |
| 263 | |
| 264 | The accounting structure will be created and then all files will be |
| 265 | extracted from the archive. |
| 266 | |
| 267 | :XEQ SH.HPBIN.SYS /tmp/INSTALL |
| 268 | |
| 269 | =item * |
| 270 | |
| 271 | Convert your *.a system archive libraries to *.sl shared libraries |
| 272 | |
| 273 | You only have to do this ONCE on your MPE/iX 5.5 machine in order to |
| 274 | convert /lib/lib*.a and /usr/lib/lib*.a libraries to their *.sl |
| 275 | equivalents. This step should not be necessary on MPE/iX 6.0 or later |
| 276 | machines because the 6.0 or later update process does it for you. |
| 277 | |
| 278 | :XEQ SH.HPBIN.SYS /PERL/PUB/LIBSHP3K |
| 279 | |
| 280 | =back |
| 281 | |
| 282 | =head1 Perl/iX Distribution Contents Highlights |
| 283 | |
| 284 | =over 4 |
| 285 | |
| 286 | =item README |
| 287 | |
| 288 | The file you're reading now. |
| 289 | |
| 290 | =item INSTALL |
| 291 | |
| 292 | Perl/iX Installation script. |
| 293 | |
| 294 | =item LIBSHP3K |
| 295 | |
| 296 | Script to convert *.a system archive libraries to *.sl shared libraries. |
| 297 | |
| 298 | =item PERL |
| 299 | |
| 300 | Perl NMPRG executable. A version-numbered backup copy also |
| 301 | exists. You might wish to "ln -s /PERL/PUB/PERL /usr/local/bin/perl". |
| 302 | |
| 303 | =item .cpan/ |
| 304 | |
| 305 | Much add-on source code downloaded with the CPAN module. |
| 306 | |
| 307 | =item lib/ |
| 308 | |
| 309 | Perl libraries, both core and add-on. |
| 310 | |
| 311 | =item man/ |
| 312 | |
| 313 | Perl man page documentation. |
| 314 | |
| 315 | =item public_html/feedback.cgi |
| 316 | |
| 317 | Sample feedback CGI form written in Perl. |
| 318 | |
| 319 | =item src/perl-5.6.0-mpe |
| 320 | |
| 321 | Source code. |
| 322 | |
| 323 | =back |
| 324 | |
| 325 | =head1 How to Compile Perl/iX |
| 326 | |
| 327 | =over 4 |
| 328 | |
| 329 | =item 1. |
| 330 | |
| 331 | cd src/perl-5.6.0-mpe |
| 332 | |
| 333 | =item 2. |
| 334 | |
| 335 | Read the INSTALL file for the official instructions |
| 336 | |
| 337 | =item 3. |
| 338 | |
| 339 | ./Configure -d |
| 340 | |
| 341 | =item 4. |
| 342 | |
| 343 | make |
| 344 | |
| 345 | =item 5. |
| 346 | |
| 347 | ./mpeix/relink |
| 348 | |
| 349 | =item 6. |
| 350 | |
| 351 | make test (expect approximately 15 out of 11306 subtests to fail, |
| 352 | mostly due to MPE not supporting hard links, UDP socket problems, |
| 353 | and handling exit() return codes improperly) |
| 354 | |
| 355 | =item 7. |
| 356 | |
| 357 | make install |
| 358 | |
| 359 | =item 8. |
| 360 | |
| 361 | Optionally create symbolic links that point to the Perl |
| 362 | executable, i.e. ln -s /PERL/PUB/PERL /usr/local/bin/perl |
| 363 | |
| 364 | =back |
| 365 | |
| 366 | The summary test results from "cd t; ./perl -I../lib harness": |
| 367 | |
| 368 | Failed Test Status Wstat Total Fail Failed List of failed |
| 369 | --------------------------------------------------------------------------- |
| 370 | io/fs.t 29 8 27.59% 2-5, 7-9, 11 |
| 371 | io/openpid.t 10 1 10.00% 7 |
| 372 | lib/io_sock.t 14 1 7.14% 13 |
| 373 | lib/io_udp.t 7 2 28.57% 3, 5 |
| 374 | lib/posix.t 27 1 3.70% 12 |
| 375 | op/lex_assign.t 187 1 0.53% 13 |
| 376 | op/stat.t 58 1 1.72% 3 |
| 377 | 15 tests and 94 subtests skipped. |
| 378 | Failed 7/236 test scripts, 97.03% okay. 15/11306 subtests failed, 99.87% okay. |
| 379 | |
| 380 | =head1 Getting Started with Perl/iX |
| 381 | |
| 382 | Create your Perl script files with "#!/PERL/PUB/perl" (or an |
| 383 | equivalent symbolic link) as the first line. Use the chmod command to |
| 384 | make sure that your script has execute permission. Run your script! |
| 385 | |
| 386 | Be sure to take a look at the CPAN module list |
| 387 | ( http://www.cpan.org/CPAN.html ). A wide variety of free Perl software |
| 388 | is available. You can automatically download these packages by using |
| 389 | the CPAN module ( http://theoryx5.uwinnipeg.ca/CPAN/data/perl/CPAN.html ). |
| 390 | |
| 391 | =head1 MPE/iX Implementation Considerations |
| 392 | |
| 393 | There some minor functionality issues to be aware of when comparing |
| 394 | Perl for Unix (Perl/UX) to Perl/iX: |
| 395 | |
| 396 | =over 4 |
| 397 | |
| 398 | =item * |
| 399 | |
| 400 | MPE gcc/ld doesn't properly support linking NMPRG executables against |
| 401 | NMXL dynamic libraries, so you must manually run mpeix/relink after |
| 402 | each re-build of Perl. |
| 403 | |
| 404 | =item * |
| 405 | |
| 406 | Perl/iX File::Copy will use MPE's /bin/cp command to copy files by |
| 407 | name in order to preserve file attributes like file code. |
| 408 | |
| 409 | =item * |
| 410 | |
| 411 | MPE (and thus Perl/iX) lacks support for setgrent(), endgrent(), |
| 412 | setpwent(), endpwent(). |
| 413 | |
| 414 | =item * |
| 415 | |
| 416 | MPE (and thus Perl/iX) lacks support for hard links. |
| 417 | |
| 418 | =item * |
| 419 | |
| 420 | MPE requires GETPRIVMODE() in order to bind() to ports less than 1024. |
| 421 | Perl/iX will call GETPRIVMODE() automatically on your behalf if you |
| 422 | attempt to bind() to these low-numbered ports. Note that the Perl/iX |
| 423 | executable and the PERL account do not normally have CAP=PM, so if you |
| 424 | will be bind()-ing to these privileged ports, you will manually need |
| 425 | to add PM capability as appropriate. |
| 426 | |
| 427 | =item * |
| 428 | |
| 429 | MPE requires that you bind() to an IP address of zero. Perl/iX |
| 430 | automatically replaces the IP address that you pass to bind() with |
| 431 | a zero. |
| 432 | |
| 433 | =item * |
| 434 | |
| 435 | MPE requires GETPRIVMODE() in order to setuid(). There are too many |
| 436 | calls to setuid() within Perl/iX, so I have not attempted an automatic |
| 437 | GETPRIVMODE() solution similar to bind(). |
| 438 | |
| 439 | =back |
| 440 | |
| 441 | =head1 Known Perl/iX Bugs Under Investigation |
| 442 | |
| 443 | None. |
| 444 | |
| 445 | =head1 Perl/iX To-Do List |
| 446 | |
| 447 | =over 4 |
| 448 | |
| 449 | =item * |
| 450 | |
| 451 | Make setuid()/setgid() support work. |
| 452 | |
| 453 | =item * |
| 454 | |
| 455 | Make sure that fcntl() against a socket descriptor is redirected to sfcntl(). |
| 456 | |
| 457 | =item * |
| 458 | |
| 459 | Add support for Berkeley DB once I've finished porting Berkeley DB. |
| 460 | |
| 461 | =item * |
| 462 | |
| 463 | Write an MPE XS extension library containing miscellaneous important |
| 464 | MPE functions like GETPRIVMODE(), GETUSERMODE(), and sfcntl(). |
| 465 | |
| 466 | =back |
| 467 | |
| 468 | =head1 Perl/iX Change History |
| 469 | |
| 470 | May 6, 1999 |
| 471 | |
| 472 | =over 4 |
| 473 | |
| 474 | =item * |
| 475 | |
| 476 | Patch LBCJXT6A is required on MPE/iX 5.5 machines in order to prevent |
| 477 | Perl/iX from dying with an unresolved external reference to _getenv_libc. |
| 478 | |
| 479 | =back |
| 480 | |
| 481 | April 7, 1999 |
| 482 | |
| 483 | =over 4 |
| 484 | |
| 485 | =item * |
| 486 | |
| 487 | Updated to version 5.005_03. |
| 488 | |
| 489 | =item * |
| 490 | |
| 491 | The official source distribution once again compiles "straight out |
| 492 | of the box" for MPE. |
| 493 | |
| 494 | =item * |
| 495 | |
| 496 | The current incarnation of the 5.5 POSIX filename extended |
| 497 | characters patch is now MPEKX40B. |
| 498 | |
| 499 | =item * |
| 500 | |
| 501 | The LIBSHP3K *.a -> *.sl library conversion script is now included |
| 502 | as /PERL/PUB/LIBSHP3K. |
| 503 | |
| 504 | =back |
| 505 | |
| 506 | November 20, 1998 |
| 507 | |
| 508 | =over 4 |
| 509 | |
| 510 | =item * |
| 511 | |
| 512 | Updated to version 5.005_02. |
| 513 | |
| 514 | =item * |
| 515 | |
| 516 | Fixed a DynaLoader bug that was unable to load symbols from relative |
| 517 | path name libraries. |
| 518 | |
| 519 | =item * |
| 520 | |
| 521 | Fixed a .xs compilation bug where the mpeixish.sh include file wasn't |
| 522 | being installed into the proper directory. |
| 523 | |
| 524 | =item * |
| 525 | |
| 526 | All bugfixes will be submitted back to the official Perl developers. |
| 527 | |
| 528 | =item * |
| 529 | |
| 530 | The current incarnation of the POSIX filename extended characters |
| 531 | patch is now MPEKXJ3A. |
| 532 | |
| 533 | =back |
| 534 | |
| 535 | August 14, 1998 |
| 536 | |
| 537 | =over 4 |
| 538 | |
| 539 | =item * |
| 540 | |
| 541 | The previous POSIX filename extended characters patch MPEKX44C has |
| 542 | been superseded by MPEKXB5A. |
| 543 | |
| 544 | =back |
| 545 | |
| 546 | August 7, 1998 |
| 547 | |
| 548 | =over 4 |
| 549 | |
| 550 | =item * |
| 551 | |
| 552 | The previous POSIX filename extended characters patch MPEKX76A has |
| 553 | been superseded by MPEKX44C. |
| 554 | |
| 555 | =back |
| 556 | |
| 557 | July 28, 1998 |
| 558 | |
| 559 | =over 4 |
| 560 | |
| 561 | =item * |
| 562 | |
| 563 | Updated to version 5.005_01. |
| 564 | |
| 565 | =back |
| 566 | |
| 567 | July 23, 1998 |
| 568 | |
| 569 | =over 4 |
| 570 | |
| 571 | =item * |
| 572 | |
| 573 | Updated to version 5.005 (production release). The public |
| 574 | freeware sources are now 100% MPE-ready "straight out of the box". |
| 575 | |
| 576 | =back |
| 577 | |
| 578 | July 17, 1998 |
| 579 | |
| 580 | =over 4 |
| 581 | |
| 582 | =item * |
| 583 | |
| 584 | Updated to version 5.005b1 (public beta release). The public |
| 585 | freeware sources are now 99.9% MPE-ready. By installing and |
| 586 | testing this beta on your own HP3000, you will be helping to |
| 587 | insure that the final release of 5.005 will be 100% MPE-ready and |
| 588 | 100% bug free. |
| 589 | |
| 590 | =item * |
| 591 | |
| 592 | My MPE binary release is now extracted using my standard INSTALL script. |
| 593 | |
| 594 | =back |
| 595 | |
| 596 | July 15, 1998 |
| 597 | |
| 598 | =over 4 |
| 599 | |
| 600 | =item * |
| 601 | |
| 602 | Changed startperl to #!/PERL/PUB/perl so that Perl will recognize |
| 603 | scripts more easily and efficiently. |
| 604 | |
| 605 | =back |
| 606 | |
| 607 | July 8, 1998 |
| 608 | |
| 609 | =over 4 |
| 610 | |
| 611 | =item * |
| 612 | |
| 613 | Updated to version 5.004_70 (internal developer release) which is now |
| 614 | MPE-ready. The next public freeware release of Perl should compile |
| 615 | "straight out of the box" on MPE. Note that this version of Perl/iX |
| 616 | was strictly internal to me and never publicly released. Note that |
| 617 | [21]BIND/iX is now required (well, the include files and libbind.a) if |
| 618 | you wish to compile Perl/iX. |
| 619 | |
| 620 | =back |
| 621 | |
| 622 | November 6, 1997 |
| 623 | |
| 624 | =over 4 |
| 625 | |
| 626 | =item * |
| 627 | |
| 628 | Updated to version 5.004_04. No changes in MPE-specific functionality. |
| 629 | |
| 630 | =back |
| 631 | |
| 632 | October 16, 1997 |
| 633 | |
| 634 | =over 4 |
| 635 | |
| 636 | =item * |
| 637 | |
| 638 | Added Demos section to the Perl/iX home page so you can see some |
| 639 | sample Perl applications running on my 3000. |
| 640 | |
| 641 | =back |
| 642 | |
| 643 | October 3, 1997 |
| 644 | |
| 645 | =over 4 |
| 646 | |
| 647 | =item * |
| 648 | |
| 649 | Added System Requirements section to the Perl/iX home page just so the |
| 650 | prerequisites stand out more. Various other home page tweaks. |
| 651 | |
| 652 | =back |
| 653 | |
| 654 | October 2, 1997 |
| 655 | |
| 656 | =over 4 |
| 657 | |
| 658 | =item * |
| 659 | |
| 660 | Initial public release. |
| 661 | |
| 662 | =back |
| 663 | |
| 664 | September 1997 |
| 665 | |
| 666 | =over 4 |
| 667 | |
| 668 | =item * |
| 669 | |
| 670 | Porting begins. |
| 671 | |
| 672 | =back |
| 673 | |
| 674 | =head1 AUTHOR |
| 675 | |
| 676 | Mark Bixby, http://www.bixby.org/mark/ |
| 677 | |