NEWS revision 75584
1This file describes recent user-visible changes in groff. Bug fixes 2are not described. There are more details in the man pages. 3 4Groff 5----- 6 7o `-mFOO' will now search first for `FOO.tmac' and then for `tmac.FOO'. The 8 old behaviour has been changed to overcome problems with platforms which 9 have an 8+3 file name limit, and platforms which have other versions of 10 troff installed also. Additionally, all macro files have been renamed 11 using the latter scheme to avoid 8+3 name clashes. 12 13o The new environment variable GROFF_BIN_PATH will be checked for programs 14 groff is calling (preprocessors, troff, and output devices) before PATH. 15 If not set, it defaults to the directory where the groff binary is 16 located. Previously, it was PATH only. The nroff script will only use 17 GROFF_BIN_PATH to find the groff binary but passes both the GROFF_BIN_PATH 18 and PATH environment variable to groff. 19 20Troff 21----- 22 23o The mdoc package has been completely rewritten, using the full power of 24 GNU troff to remove limitations of Unix troff (which is no longer 25 supported). Most important changes are: 26 27 . No argument limit. 28 . Almost all macros are parsed and callable (if it makes sense). 29 . `.Lb': prints library names 30 . `.Nm <punctuation>' now works as expected; `.Nm "" <punctuation>' has 31 been withdrawn. 32 . Updated `.St' command 33 . `.Fx': prints FreeBSD 34 . `.Ox': prints OpenBSD 35 . `.Bsx': prints BSD/OS 36 . `.Brq', `.Bro', `.Brc': brace enclosure macros 37 . `.Bd -centered': center lines 38 . `.Bl -xwidth <string>': interpret <string> and use the resulting width 39 . support for double-sided printing (-rD1 command line switch) 40 . support for 11pt and 12pt document sizes (-rS11, -rS12 command line 41 switches) 42 43 `groff_mdoc.man' replaces `groff_mdoc.samples.man'; it now completely 44 documents the mdoc package. 45 46 Great care has been taken to assure backwards compatibility. If you 47 encounter any abnormal results, please report them to bug-groff@gnu.org. 48 49o A new command line option for the `man' macros (similar to the `mdoc' 50 package has been implemented: `-rcR=1' (now the default in nroff mode) will 51 produce one single, very long page instead of multiple pages. `-rcR=0' 52 will deactivate it. 53 54o The `return' request has been added to return immediately from a macro. 55 56o A new request `nop' (no operation) has been added which is similar to 57 `if 1'. For example, 58 59 .if t \{\ 60 Hallo! 61 .\} 62 63 can now be written as 64 65 .if t \{\ 66 . nop Hallo! 67 .\} 68 69o `box' and `boxa' are two new requests which behave similarly to `di' and 70 `da' but don't include a partially filled line (which is restored after 71 ending the diversion). 72 73o The `asciify' request has been extended to `unformat' space characters 74 and some other escape sequences also. 75 76 `\ ' will no longer be unformatted as a space but remains an unpaddable, 77 unbreakable space character. 78 79o The new `unformat' request is similar to `asciify' but only handles space 80 characters and tabs specially if the diversion is reread, retaining font 81 information. This makes it possible to reformat diversions; for example 82 the following 83 84 .ll 3i 85 . 86 a01 a02 a03 a04 a05 a06 a07 a08 a09 a10. 87 . 88 .box box1 89 .ev 1 90 .nf 91 \f[B]b01 b02 b03 b04 b05 b06 b07 b08 b09 b10.\f[P] 92 .br 93 .ev 94 .box 95 . 96 c01 c02 c03 c04 c05 c06 c07 c08 c09 c10. 97 . 98 .unformat box1 99 .box1 100 101 gives 102 103 a01 a02 a03 a04 a05 a06 a07 104 a08 a09 a10. c01 c02 c03 c04 105 c05 c06 c07 c08 c09 c10. b01 106 b02 b03 b04 b05 b06 b07 b08 107 b09 b10. 108 109 Without the `unformat' request, space characters are converted to word 110 space nodes which are no longer stretchable, and the result would be 111 112 a01 a02 a03 a04 a05 a06 a07 113 a08 a09 a10. c01 c02 c03 c04 114 c05 c06 c07 c08 c09 c10. b01 115 b02 b03 b04 b05 b06 b07 b08 116 b09 b10. 117 118o The new request `linetabs' controls the `line-tabs' mode. In line-tabs 119 mode, tab distances are computed relative to the (current) output line. 120 Otherwise they are taken relative to the input line. For example, the 121 following 122 123 .ds x a\t\c 124 .ds y b\t\c 125 .ds z c 126 .ta 1i 3i 127 \*x 128 \*y 129 \*z 130 131 yields 132 133 a b c 134 135 In line-tabs mode, the same code gives 136 137 a b c 138 139 The new read-only number register `.linetabs' returns 1 if in line-tabs 140 mode, and 0 otherwise. 141 142o Two new requests `tm1' and `tmc' have been added to improve writing 143 messages to the terminal. `tm1' is similar to `tm' but allows leading 144 whitespace. `tmc' is similar to `tm1' but doesn't emit a final newline. 145 146o A new request `dei' (define indirect) has been added. The first and 147 second parameter of `dei' are taken from string registers rather than 148 directly; this very special request is needed to make `trace.tmac' 149 independent from the escape character (which might even be disabled). 150 151o It is now possible to save and restore the escape character with two new 152 requests `ecs' and `ecr'. 153 154o The new escape sequence \B'...' is an analogon to `\A': If the string 155 within the delimiters is a valid numeric expression, return character `1', 156 and `0' otherwise. 157 158o The new escape sequence `\:' inserts a zero-width break point. This is 159 similar to `\%' but without a soft hyphen character. 160 161o The `tr' request can now map characters onto `\~'. 162 163o Calling the `fam' request without an argument switches back to the 164 previous font family. 165 166o The new read-only register `.int' is set to a positive value if the last 167 output line is interrupted (i.e., if it contains `\c'). 168 169o The `writem' request is not new, but hasn't been documented before. This 170 is similar to `write' but instead of a string the contents of a given 171 macro or string is written to a stream. 172 173o The read/write number register `hp' to get/set the current horizontal 174 position relative to the input line isn't new but hasn't been documented 175 properly before. 176 177o `\X' and `\Y' are no transparent for end-of-sentence recognition. 178 179o The `cu' request in nroff mode now works as documented (i.e., it does 180 underline spaces also). 181 182Nroff 183----- 184 185Option -v shows the version number. 186 187Grog 188---- 189 190o The grog script will now work in non-compatibility mode also (which is the 191 default). As usual, use the `-C' option to activate compatibility mode. 192 193o Option -v shows the version number. 194 195Grops 196----- 197 198A new option `-P' resp. a new environment variable `GROPS_PROLOGUE' has been 199added to select a different prologue file. 200 201The effect of the former `-mpsnew' option to access more Type 1 characters 202is now the default and no longer available. To get the old behaviour (i.e., 203emulation of some glyphs by composition) use `-mpsold'. 204 205Miscellaneous 206------------- 207 208o For security reasons the following changes have been done: 209 210 . The tmac.safer file has been replaced with a built-in solution; .open, 211 .opena, .pso, .sy, and .pi are completely disabled in safer mode (which 212 is the default); to enable these requests the `-U' command line flag 213 must be used. 214 215 . Files specified with the .mso request or given with the `-m' command 216 line option, and hyphenation patterns loaded with `.hpf' are no longer 217 searched in the current directory by default (besides the usual tmac 218 path). Instead, the home directory is used. To add the current 219 directory, either use the `-U' or `-M' command line option or set the 220 GROFF_TMAC_PATH environment variable to an appropriate value. 221 222 . troffrc, troffrc-end, and eqnrc are neither searched in the current nor 223 in the home directory (even if -U is given). Use -M or GROFF_TMAC_PATH 224 to change that. 225 226 . Similarly, the current directory is no longer part of the font path. 227 Use the `-F' command line option or the GROFF_FONT_PATH environment 228 variable if you really need the current directory. 229 230o groff will now install its data files into 231 /usr/local/share/groff/<version> by default, following the GNU standard. 232 Additionally, a local tmac directory (by default 233 /usr/local/share/groff/site-tmac) will be scanned before the standard tmac 234 directory. Wrapper files for system-specific macro packages (if 235 necessary) are put into /usr/local/lib/groff/site-tmac; this directory 236 will be searched before the local tmac directory. 237 238o All programs now have option `-v' to show the version number; they will 239 exit immediately afterwards, following the GNU standards. Additionally, 240 `--version' and `--help' have been added, doing the obvious actions. 241 242VERSION 1.16.1 243============== 244 245Bug fixes only; no user-visible changes. 246 247VERSION 1.16 248============ 249 250Groff 251----- 252 253The anachronism of calling the man macro package with `-man' has been fixed; 254now you can say `-m man' also. The same is true for `ms', `me', `markup', 255`mandoc', and `mdoc'. 256 257A new switch `-g' for calling `grn' is available. 258 259A new switch `-G' for calling `grap' is available. 260 261EBCDIC support for tty devices has been added. On such hosts, IBM code page 2621047 is available with -Tcp1047 instead of -Tascii and -Tlatin1 (and, for 263the moment, -Tutf8). Note that non-tty devices are not yet supported (but 264installed). 265 266Troff 267----- 268 269A new command line option to the `man' macros is available: `-rSxx' (with 270`xx' either 10, 11, or 12) to set the base document font size to `xx' 271points. Additionally, `.SH' now produces larger headings than `.SS'. 272 273To solve a problem with the .PSPIC macro which needs the `-U' switch of 274troff to access an external program (psbb), a new request .psbb is now 275available to get the bounding box of a PostScript image file. The values 276(in PostScript units) are returned in the new read-only number registers 277`llx', `lly', `urx', and `ury'. Consequently, .PSPIC has been adapted to 278use the new request, and the psbb program has been removed. 279 280A new predefined writable number register, `year', has been added. It 281contains the current year. 282 283A new read-only register, `.Y', has been added. It contains the revision 284number of the groff package. 285 286`\fP' now behaves as expected in situations like the following where the 287font `foo' is undefined: 288 289 .B bold text 290 normal text \f[foo]bar\fP normal text 291 292Previously, the text after \fP appeared as bold. 293 294The `substring' request is not new, but hasn't been documented before. 295 296The predefined `.T' string register (which holds the current output device) 297is not new, but hasn't been documented before. 298 299A new request `length' computes the length of a string and returns it in 300a number register. 301 302The macro files `tmac.a4' (for specifying A4 paper format) and `tmac.trace' 303(a debugging aid) are now installed also. 304 305A new resource file, `troffrc-end', is now available. It is invoked after 306all user-specified macros. Currently used by the html device to include 307tmac.html; thus no need for users to specify -mhtml anymore. 308 309The soft hyphen character now has a glyph name: `shc'. 310 311The latin-1 character 173 (PS name `periodcentered') has got the troff glyph 312name `pc' and is no longer intermixed with the symbol character `md' (PS 313name `mathdot'). 314 315ASCII character 34 (PS name `quotedbl') has got the troff glyph name `dq' 316(which is an alias to character `"'). 317 318ASCII character 39 (PS name `quoteright') has got the troff glyph name `cq' 319(which is an alias to character "'"). 320 321Some additions to the font description files have been implemented for 322better support of HTML output: 323 324 The new format of lines in the `charset' subsection of font description 325 files is 326 327 name metrics type code [entity_name] [-- comment] 328 329 Currently, only the font description files in devhtml use the optional 330 entity_name string to define glyph entities in HTML. Everything after the 331 entity_name field is ignored; in case this field isn't used, two hyphen 332 characters are now necessary to start a comment. 333 334 Two new requests are available in DESC files (currently used only with 335 grohtml): 336 337 use_charnames_in_special 338 This command indicates that troff should encode named characters 339 inside special commands. 340 341 pass_filenames 342 requests that troff tells the driver the source file name being 343 processed. This is achieved by another tcommand: `F filename'. 344 345Grotty 346------ 347 348Bruno Haible <haible@clisp.cons.org> contributed support for UTF8 output. 349 350Grohtml 351------- 352 353Added .LINE macro to tmac.arkup. 354 355The obsolete `.LINK' macro has been removed. 356 357.URL, .FTP, and .MAILTO macros now accept an optional third argument which 358will be immediately appended to the second argument (to be used with 359punctuation, for example). 360 361Grodvi 362------ 363 364The font size 11pt has been changed to 10.95pt (as used in LaTeX 2e). 365 366A new font file CWI (using cmitt10; this is typewriter italic) has been 367added. 368 369Grolbp 370------ 371 372A new driver for Canon CAPSL printers (LBP-4 and LBP-8 series laser 373printers). This code has been contributed by Francisco Andres Verdu 374<pandres@dragonet.es>. 375 376Grn 377--- 378 379A new preprocessor to process gremlin pictures. It is based on the 380original Berkeley implementation of grn, written by David Slattengren 381and Barry Roitblat, and has been adapted to groff by Daniel Senderowicz 382<daniel@synchrods.com> and Werner Lemberg <wl@gnu.org>. 383 384Pic 385--- 386 387Added the `srand' command to set the seed for a new sequence of 388pseudo-random numbers to be returned by `rand'. 389 390Gxditview 391--------- 392 393Simplified installation: The Imakefile will now be configured (by groff's 394configure script). 395 396Documentation 397------------- 398 399Three new man pages are available: groff_tmac.5 (documenting how troff macros 400are accessed and where they are found), groff.7 (a short reference of the GNU 401roff language), and roff.7 (a general survey on GNU troff). 402 403Miscellaneous 404------------- 405 406A port to win32 (for use with Microsoft Visual C++ 6.0) is now part of the 407distribution. It has been contributed by Blake McBride 408<blake@florida-software.com>. 409 410More information about programs, macros, documentation, etc., which is 411related to groff has been collected in the file `MORE.STUFF'. 412 413VERSION 1.13, 1.14, 1.15 414======================== 415 416Bug fixes only; no user-visible changes. 417 418VERSION 1.12 419============ 420 421Finally, there are new maintainers for groff. Mailing lists and a CVS 422repository are available also. See the file README for details. Not 423all reported bug could be fixed, so please send mails again if 424something is still not working. 425 426Most of the installation problems should have vanished now (most 427notably the $(tmac_wrap) bug). 428 429There is now a man page called groff_man.man which documents the 430basics of the -man macros. It has been originally written by Susan 431G. Kleinmann <sgk@debian.org>. 432 433A (still incomplete) groff reference manual in texinfo format 434originally contributed by Trent A. Fisher <trent@gnurd.portland.or.us>. 435 436me.man and msafer.man have been renamed to groff_me.man 437resp. groff_msafer.man for consistency. 438 439Default strings for macros in doc-common resp. tmac.an no longer 440contain the word `UNIX'. 441 442groff should now be Y2k safe (fixes contributed by Paul Eggert 443<eggert@twinsun.com>). 444 445Following the GNU standards, groff will now use the prefix 446`/usr/local/' as the default instead of replacing an existent groff 447binary. 448 449groff, troff, nroff, and pic now support the -U flag to activate unsafe 450behaviour (without -msafer); the -S flag for using the -msafer macros 451is now the default. 452 453Grohtml 454------- 455 456This is a new output device for producing HTML output contributed by 457Gaius Mulley <gaius@glam.ac.uk>. It is still very alpha but has been 458included into the distribution so that a lot of people have a chance 459to test it. Bug reports are highly welcome. 460 461Grolj4 462------ 463 464Duplex printing support has been contributed by Jeffrey Copeland 465<jeff@opennt.com>. 466 467Soelim 468------ 469 470Added -I option for defining include paths (patch contributed by Peter 471Miller <peterm@jna.com.au>). 472 473Gxditview 474--------- 475 476Fallback resources added (patch contributed by Larry Jones 477<larry.jones@sdrc.com>). 478 479Will now support 8 gray levels. 480 481mm 482-- 483 484New version 1.32 (contributed by Joergen Haegg <jh@axis.com>). 485 486VERSION 1.11 487============ 488 489Complete documentation for pic is now in the file doc/pic.ms. It was 490contributed by Eric S. Raymond, <esr@thyrsus.com>, who is emphatically 491*not* volunteering to take over groff as he is way overworked with 492half a dozen other projects. 493 494VERSION 1.10 495============ 496 497The directory where data files are installed has been changed from 498/usr/local/lib/groff to /usr/local/share/groff to comply with the 499latest GNU coding standards. 500 501By default groff programs with Unix equivalents are installed with a 502"g" prefix unless there is an existing (non-groff) troff installation. 503 504A new approach is used to make system macro packages available to 505groff. Instead of simply including /usr/lib/tmac in the list of 506directories searched by groff, the installation process creates for 507each system macro package a wrapper macro package in the groff macro 508directory that references the system macro package. The groff macro 509packages are now installed with a leading "g" prefix if there is a 510system version of the same macro package, and otherwise without the 511"g" prefix, with the exception that the groff version of -me which is 512always installed as -me. 513 514There is a new device, lj4, for the HP LaserJet 4 (and PCL5 515compatibles). 516 517Groff 518----- 519 520groff has a -S option that prevents the use of unsafe features in pic 521and troff. This uses a new -S option of pic and the -msafer macros 522for troff. 523 524Troff 525----- 526 527The `blm' request specifies a macro to be invoked when a blank line is 528encountered. 529 530Pic 531--- 532 533A -S (safer) option disables the sh command. 534 535Grops 536----- 537 538The -m option enables manual feed. 539 540VERSION 1.09 541============ 542 543\(rn will now produce a character that has the traditional metrics, 544and will form corners with \(ul and \(br. This means that it will not 545align properly with \(sr. Instead there's a new character 546\[radicalex] which aligns with \(sr; this is used by eqn for doing 547square roots. 548 549Troff 550----- 551 552The `pso' request allows you to read from the standard output of a 553command. 554 555Grops 556----- 557 558The PSPIC macro has options to allow the horizontal alignment of the 559graphic to be specified. 560 561VERSION 1.08 562============ 563 564Troff 565----- 566 567The escape sequence \V[xxx] will interpolate the value of the 568environment variable xxx. 569 570Tbl 571--- 572 573The decimalpoint option can be used to specify the character to be 574recognized as the decimal point character in place of the default 575period. 576 577VERSION 1.07 578============ 579 580Groff 581----- 582 583The environment variable GROFF_COMMAND_PREFIX can be used to control 584whether groff looks for `gtroff' or `troff' (similarily for the 585preprocessors.) 586 587Troff 588----- 589 590Multilingual hyphenation is supported by new `hpf' and `hla' requests, 591and by a `\n[.hla]' number register. The -H option has been removed. 592Files of hyphenation patterns can have comments. 593 594When a font cannot be found, troff gives a warning (of type `font', 595enabled by default) instead of an error. 596 597There's a new request `trnt' that's like `tr' except that it doesn't 598apply to text transparently throughput into a diversion with \!. 599 600Tbl 601--- 602 603There is a `nokeep' option which tells tbl not to use diversions to 604try to keep the table on one page. 605 606Eqn 607--- 608 609Setting the parameter `nroff' to a non-zero value causes `ndefine' to 610behave like `define' and `tdefine' to be ignored. This is done by 611eqnrc when the current device is ascii or latin1. There's a `neqn' 612script that just does `eqn -Tascii'. 613 614Grotty 615------ 616 617grotty uses whatever page length was specified using the `pl' request 618rather than using the paperlength command in the DESC file. The 619paperwidth command in the DESC file is also ignored. 620 621VERSION 1.06 622============ 623 624The programs in groff that have Unix counterparts can now be installed 625without a leading `g' prefix. See the `g' variable in the Makefile. 626 627The g?nroff script simulates the nroff command using groff. 628 629New special characters \(+h, \(+f, \(+p, \(Fn, \(Bq, \(bq, \(aq, \(lz, 630\(an. See groff_char(7). 631 632^L is now a legal input character. 633 634Groff 635----- 636 637The Xps pseudo-device has disappeared. Instead there is a new -X 638option that tells groff to use gxditview instead of the usual 639postprocessor. (So instead of -TXps, use -XTps or just -X if your 640default device is ps.) 641 642The postprocessor to be used for a particular device is now specified 643by a `postpro' command in the DESC file rather than being compiled 644into groff. Similarly the command to be used for printing (with the 645-l option) is now specified by a `print' command in the DESC file. 646 647The groff command no longer specifies eqnchar as an input file for 648eqn. Instead eqn automatically loads a file `eqnrc'. The groff 649command no longer passes the -D option to eqn. Instead eqnrc sets the 650draw_lines parameter. 651 652The groff command no longer tells troff to load a device-specific 653macro file. This is handled instead by the `troffrc' file, which is 654always loaded by troff. 655 656The shell script version of groff has been removed. 657 658Troff 659----- 660 661The `rchar' request removes a character definition established with `char'. 662 663Compatibility mode is disabled and the escape character is set to `\' 664while a character definition is being processed. 665 666The `\#' escape sequence is like `\"' except that the terminating 667newline is ignored. 668 669The `shc' request tells troff which character to insert (instead of 670the default \(hy) when a word is hyphenated at a line break. 671 672A font name of 0 (zero) in the DESC file will cause no font to be 673mounted on the corresponding font position. This is useful for 674arranging that special fonts are mounted on positions on which users 675are not likely explicitly to mount fonts. All groff devices now avoid 676initially mounting fonts on positions 5-9. 677 678The `do' request allows a single request or macro to be interpreted 679with compatibility mode disabled. 680 681troff automatically loads a file `troffrc' before any other input file. 682This can be prevented with the -R option. This file is responsible 683for loading the device-specific macros. 684 685Pic 686--- 687 688The -x option has been removed and a -n option has been added. By 689default, pic now assumes that the postprocessor supports groff 690extensions. The -n option tells pic to generate output that works 691with ditroff drivers. The -z option now applies only to TeX mode. 692 693The -p option has been removed. Instead if the -n option is not 694specified, pic generates output that uses \X'ps: ...' if the \n(0p 695register is non-zero and tmac.ps sets this register to 1. 696 697In places where you could 1st or 5th you can now say `i'th or `i+1'th 698(the quotes are required). 699 700Eqn 701--- 702 703Eqn now automatically reads a file `eqnrc' from the macro directory. 704This performs the same role that the eqnchar files used to. This can 705be prevented by the -R option. 706 707Setting the draw_lines parameter to a non-zero value causes lines to 708be drawn using \D rather than \l. The -D option is now obsolete. 709 710`uparrow', `downarrow' and `updownarrow' can be used with `left' and 711`right'. 712 713The amount of extra space added before and after lines containing 714equations can be controlled using the `body_height' and `body_depth' 715parameters. 716 717Grops 718----- 719 720Font description files have been regenerated from newer AFM files. 721You can get access to the additional characters present in the text 722fonts in newer PostScript printers by using -mpsnew. 723 724The default value of the -b option is specified by a `broken' command 725in the DESC file. 726 727With the -g option, grops will generate PostScript code that guesses 728the page height. This allows documents to be printed on both letter 729(8.5x11) and A4 paper without change. 730 731Grodvi 732------ 733 734ISO Latin-1 characters are available with -Tdvi. Format groff_char(7) 735with groff -Tdvi for more information. 736 737Grotty 738------ 739 740The -mtty-char macros contain additional character definitions for 741use with grotty. 742 743Macros 744------ 745 746In previous releases the groff -me macros treated the $r and $R number 747registers in a way that was incompatible with the BSD -me macros. The 748reason for this was that the approach used by the BSD -me macros does 749not work with low resolution devices such as -TX75 and -TX100. 750However, this caused problems with existing -me documents. In this 751release, the vertical spacing is controlled by the $v and $V registers 752which have the same meaning as $r and $R in earlier groff releases. 753In addition, if the $r or $R register is set to a value that would be 754correct for for the BSD -me macros and a low resolution device is not 755being used, then an appropriate value for the $v or $V register will 756be derived from the $r or $R register. 757 758The groff -me macros work with -C and (I think) with Unix troff. 759 760For backward compatibility with BSD -me, the \*{ and \*} strings are 761also available as \*[ and \*]. Of course, \*[ will only be usable 762with -C. 763 764The \*T string has been deleted. Use \*(Tm instead. 765 766Xditview 767-------- 768 769The `n', Space and Return keys are bound to the Next Page action. The 770`p', BackSpace and Delete keys are bound to the Previous Page action. 771The `q' key is bound to the Quit action. 772 773The `r' key is bound to a rerasterize action that reruns groff, and 774redisplays the current page. 775 776VERSION 1.05 777============ 778 779Pic 780--- 781 782There is a alternative assignment operator `:=' which interacts 783differently with blocks. 784 785There is a new command `command', which allows the values of variables 786to be passed through to troff or TeX. 787 788The `print' command now accepts multiple arguments. 789 790String comparison expressions (using `==' or `!=') are allowed in more 791contexts. 792 793Grotty 794------ 795 796Horizontal and vertical lines drawn with \D'l ...' will be rendered 797using -, | and + characters. This is intended to give reasonable 798results with boxed tables. It won't work well with pic. 799 800Macros 801------ 802 803The -mdoc macros have been upgraded to the version in the second 804Berkeley networking release. This version is not completely 805compatible with earlier versions; the old version is still available 806as -mdoc.old. The grog script has been enhanced so that it can 807usually determine whether a document requires the old or new versions. 808 809With -TX75, -TX100 and -TXps, the PSPIC macro will produce a box 810around where the picture would appear with -Tps. 811 812VERSION 1.04 813============ 814 815An implementation of the -mm macros is included. 816 817The directory in which temporary files are created can be controlled 818by setting the GROFF_TMPDIR or TMPDIR environment variables. 819 820Pic 821--- 822 823Some MS-DOS support (see pic/make-dos-dist). 824 825Grops 826----- 827 828There are two new \X commands (\X'ps: invis' and \X'ps: endinvis') 829which make it possible to have substitute characters that are 830displayed when previewing with -TXps but ignored when printing with 831grops. 832 833Xditview 834-------- 835 836Support for scalable fonts. 837 838VERSION 1.03 839============ 840 841No changes other than bug fixes. 842 843VERSION 1.02 844============ 845 846There is an implementation of refer and associated programs. groff -R 847preprocesses with grefer; no mechanism is provided for passing 848arguments to grefer because most grefer options have equivalent 849commands which can be included in the file. grog also supports refer. 850 851There is an alternative perl implementation of the grog script. 852 853The code field in lines in the charset section of font description 854files is now allowed to contain an arbitrary integer (previously it 855was required to lie between 0 and 255). Currently grops and grodvi 856use only the low order 8 bits of the value. Grodvi will use the 857complete value; however, this is unlikely to be useful with 858traditional TeX tools (.tfm files only allow 8 bit character codes.) 859 860Left and right double quotes can be obtained with \(lq and \(rq 861respectively. 862 863There is a new program called pfbtops which translates PostScript 864fonts in pfb format to ASCII. 865 866A slightly modified version of the Berkeley tmac.doc is included. 867 868Troff 869----- 870 871In long escape names the closing ] is now required to be at the same 872input level as the opening [. 873 874The \A'S' escape sequence returns 1 or 0 according as S is or is not 875suitable for use as a name. 876 877\~ produces an unbreakable space that can be stretched when the line 878is adjusted. 879 880The `mso' request is like the `so' request except that it searches for 881the file in the same directories in which tmac.X is searched for when 882the -mX option is given. 883 884The escape sequence `\R' is similar to the `nr' request. 885 886Eqn 887--- 888 889A new `special' primitive allows you to add new types of unary 890constructs by writing a troff macro. 891 892Pic 893--- 894 895The implementation no longer uses gperf. 896 897Grops 898----- 899 900The compile-time -DBROKEN_SPOOLER option has been replaced by a 901BROKEN_SPOOLER_FLAGS option. This allows more precise control over 902how grops should workaround broken spoolers and previewers. There is 903a new -b option that can change this at run-time. 904 905Grops now generates PostScript that complies with version 3.0 of the 906Document Structuring Convention. 907 908The resource management component of grops (the part that deals with 909imported documents and downloadable fonts) has been rewritten and now 910supports version 3.0 of the Document Structuring Conventions. The 911%%DocumentFonts comment is no longer supported; you must use the 912%%Document{Needed,Supplied}{Fonts,Resources} comments instead 913(or as well.) 914 915tmac.psatk contains some macros that support the mechanism used by the 916Andrew Toolkit for including PostScript graphics in troff documents. 917 918Xditview 919-------- 920 921Parts of xditview have been rewritten so that it can be used with the 922output of gtroff -Tps. groff -TXps will run gtroff -Tps with 923gxditview. 924 925There is a new menu entry `Print' which brings up a dialog box for 926specifying a command with which the file being previewed should be 927printed. 928 929Xditview now uses imake. 930 931VERSION 1.01 932============ 933 934The groff command now understands the gtroff `-a' and `-i' options. 935 936With the `m' and `n' scale indicators, the scale factor is rounded 937horizontally before being applied. This makes (almost) no difference 938for devices with `hor' equal to 1, but it makes groff with -Tascii or 939-Tlatin1 behave more like nroff in its treatment of these scale 940indicators. Accordingly tmac.tty now calls the `nroff' request so 941that the `n' condition will be true. 942 943The device-specific macros (tmac.ps, tmac.dvi, tmac.tty and tmac.X) 944have been made to work at least somewhat with -C. In particular the 945special characters defined by these macros now work with -C. 946 947groff -Tdvi -p will now pass pic the -x flag; this will enable filling 948of arrowheads and boxes, provided that your dvi driver supports the 949latest version of the tpic specials. 950 951Eqn 952--- 953 954There is a new `-N' option that tells eqn not to allow newlines in 955delimiters. This allows eqn to recover better from missing closing 956delimiters. The groff command will pass on a `-N' option to eqn. 957 958Grops 959----- 960 961You can now use psfig with grops. See the file ps/psfig.diff. I do 962not recommend using psfig for new documents. 963 964The command \X'ps: file F' is similar to \X'ps: exec ...' except that 965the PostScript code is read from the file F instead of being contained 966within the \X command. This was added to support psfig. 967 968Grodvi 969------ 970 971There are font files HB and HI corresponding to cmsssbx10 and cmssi10. 972 973Macros 974------ 975 976The groff -me macros now work with the -C option. As a result, they 977may also work with Unix nroff/troff. 978 979In -me, the $r and $R number registers now contain the line spacing as 980a percentage of the pointsize expressed in units (normally about 120). 981The previous definition was useless with low resolution devices such 982as X75 and X100. 983 984VERSION 1.00 985============ 986 987A -ms-like macro-package is now included. 988 989The name for the Icelandic lowercase eth character has been changed 990from \(-d to \(Sd. 991 992Troff 993----- 994 995There is a new request `nroff', which makes the `n' built-in condition 996true and the `t' built-in condition false; also a new request `troff' 997which undoes the effect of the `nroff' request. This is intended only 998for backward compatibility: it is usually better to test \n(.H or 999\n(.V or to use the `c' built-in condition. 1000 1001The \R escape sequence has been deleted. Use \E instead. 1002 1003There are `break' and `continue' requests for use with the `while' 1004request. 1005 1006There is a request `hym' that can ensure that when the current 1007adjustment mode is not `b' a line will not be hyphenated if it is no 1008more than a given amount short, and a request `hys' that can ensure 1009that when the current adjustment mode is `b' a line will not be 1010hyphenated if it can be justified by adding no more than a given 1011amount of extra space to each word space. 1012 1013There is a request `rj' similar to `ce' that right justifies lines. 1014 1015A warning of type `space' will be given when a call is made to an 1016undefined request or macro with a name longer than two characters, and 1017the first two characters of the name make a name that is defined. 1018This is intended to find places where a space has been omitted been a 1019request or macro and its argument. This type of warning is enabled by 1020default. 1021 1022Pic 1023--- 1024 1025A comma is permitted between the arguments to the `reset' command. 1026 1027For use with TeX, there is a new `-c' option that makes gpic treat 1028lines beginning with `.' in a way that is more compatible with tpic 1029(but ugly). 1030 1031Eqn 1032--- 1033 1034It is no longer necessary to add `space 0' at the beginning of 1035complicated equations inside pictures. 1036 1037`prime' is now treated as an ordinary character, as in Unix eqn. The 1038previous behaviour of `prime' as an operator can now be obtained using 1039`opprime'. 1040 1041Xditview 1042-------- 1043 1044There are two new devices X75-12 and X100-12 which are the same as X75 1045and X100 except that they are optimized for documents that use mostly 104612 point text. 1047 1048VERSION 0.6 1049=========== 1050 1051The installation process has been refined to make it easy for you to 1052share groff with someone who has the same type of machine as you but 1053does not have a C++ compiler. See the end of the INSTALL file for 1054details. 1055 1056There is a man page for the tfmtodit program which explains how to use 1057your own fonts with groff -Tdvi. 1058 1059There is a man page for afmtodit which explains how to use your own 1060PostScript fonts with groff -Tps. 1061 1062The \N escape sequence is now fully supported. It can now be used to 1063access any character in a font by its output code, even if it doesn't 1064have a groff name. This is made possible by a convention in the font 1065files that a character name of `---' refers to an unnamed character. 1066The drivers now all support the `N' command required for this. The font 1067description files have been updated to include unnamed characters. 1068 1069The `x' command in font description files has been removed: instead 1070any unknown commands are automatically made available to the drivers. 1071If you constructed your own font files with an earlier version of 1072tfmtodit or afmtodit, you must construct them again using the current 1073version. 1074 1075Characters between 0200 and 0237 octal are no longer legal input 1076characters. Note that these are not used in ISO 8859. 1077 1078A command called `grog' has been added, similar to the `doctype' 1079command described in Kernighan and Pike. 1080 1081Groff 1082----- 1083 1084The groff command has some new options: -V prints the pipeline 1085instead of executing it; -P passes an argument to the postprocessor, 1086-L passes an argument to the spooler. 1087 1088There is a C++ implementation of the groff command. This handles some 1089things slightly better than the shell script. In particular, it can 1090correctly handle arguments containing characters that have a special 1091meaning to the shell; it can give an error message when child 1092processes other than the last in the pipeline terminate abnormally; 1093its exit status can take account of the exit statuses of all its child 1094processes; it is a little more efficient; when geqn is used, it 1095searches for the eqnchar file in the same way that font metric files 1096are searched for, rather than expecting to find it in one particular 1097directory. 1098 1099Gtroff 1100------ 1101 1102There is font translation feature: For example, you can tell gtroff to 1103use font `HR' whenever font `H' is requested with the line 1104 .ftr H HR 1105This would be useful for a document that uses `H' to refer to 1106Helvetica. 1107 1108There are some new number registers: `.kern' contains the current kern 1109mode, `.lg' the current ligature mode, `.x' the major version number, 1110`.y' the minor version number, `.ce' the number of lines to be 1111centered in the current environment, `.trunc' the amount of vertical 1112space truncated by the most recently sprung vertical position trap, 1113`.ne' the amount of vertical space needed in the last `ne' request 1114that caused a vertical position trap to be sprung. 1115 1116The `cf' request now behaves sensibly in a diversion. If used in a 1117diversion, it will now arrange for the file to be copied to the output 1118when the diversion is reread. 1119 1120There is a new request `trf' (transparent file) similar to `cf', but 1121more like `\!'. 1122 1123There is a new escape sequence `\Y[xxx]', roughly equivalent to 1124`\X'\*[xxx]'', except that the contents of string or macro xxx are not 1125interpreted, and xxx may contain newlines. This requires an output 1126format extension; the drivers have been modified to understand this. 1127Grops has also been modified to cope with newlines in the arguments to 1128\X commands; grops has a new \X command mdef, which is like def except 1129that it has a first argument giving the number of definitions. 1130 1131There is a new warning category `escape' which warns about unknown 1132escape sequences. 1133 1134The `fp' request now takes an optional third argument giving the external 1135name of the font. 1136 1137The `\_' character is now automatically translated to `\(ul' as in troff. 1138 1139The environment variable `GROFF_HYPHEN' gives the name of the file 1140containing the hyphenation patterns. 1141 1142There is a `\C'xxx'' escape sequence equivalent to `\[xxx]'. 1143 1144Characters ", ', ), ], *, \(dg are now initially transparent for the purposes 1145of end of sentence recognition. 1146 1147There is an anti-recursion feature in the `char' request, so you can 1148say `.char \(bu \s+2\(bu\s-2'. 1149 1150The limit on the number of font positions has been removed. 1151Accordingly `\n[.fp]' never returns 0. 1152 1153The restriction on the number of numbered environments has been removed. 1154 1155There is a new escape sequence `\E' that makes it possible to 1156guarantee that an escape sequence won't get interpreted in copy-mode. 1157The `\R' escape sequence is accordingly now deprecated. 1158 1159Gpic 1160---- 1161 1162Arguments of the form `X anything X' (in the `copy thru', `sh', `for', 1163`if' and `define' constructs) can now be of the form `{ anything }'. 1164 1165If the `linethick' variable is negative (as it now is initially), 1166lines will be drawn with a thickness proportional to the current point 1167size. 1168 1169The `rand' function now takes no arguments and returns a number between 11700 and 1. The old syntax is still supported. 1171 1172`^' can be used in expressions to indicate exponentiation. 1173 1174In the `for' construct the argument to the by clause can be prefixed 1175by `*' to indicate that the increment is multiplicative. 1176 1177A bare expression may be used as an attribute. If the current 1178direction is `dir', then an attribute `expr' is equivalent to 1179`dir expr' 1180 1181There is a `sprintf' construct that allows numbers to be formatted and used 1182wherever a quoted string can be used. 1183 1184The height of a text object without an explicit height attribute is 1185the number of text strings associated with the object times the value 1186of the `textht' variable. 1187 1188The maximum height and width of a picture is controlled by the 1189`maxpswid' and `maxpsht' variables. 1190 1191Gtbl 1192---- 1193 1194Gtbl can now handle gracefully the situation where the `ce' request 1195has been applied to a table. 1196 1197Geqn 1198---- 1199 1200The `ifdef' primitive has been generalized. 1201 1202A tilde accent can be put underneath a box using `utilde'. This 1203defined using a general `uaccent' primitive. 1204 1205Grops 1206----- 1207 1208There is a new PostScript font downloading scheme which handles font 1209downloading for imported illustrations. Previously, the name of the 1210file containing the font was given in the `x download' line in the 1211groff font metric file. Now, there is a `download' file which says 1212for each PostScript font name which file contains that font. Grops 1213can also now handle inter-font dependencies, where one downloadable 1214font depends on some other (possibly downloadable) font. 1215 1216The `T' font has been removed. The characters it used to provide are 1217now provided by `char' definitions in tmac.ps. TSymbol.ps has also 1218been removed, and the tweaks it provided are now provided by `char' 1219definitions. 1220