1.ig 2$FreeBSD: releng/10.2/contrib/groff/src/devices/grotty/grotty.man 151503 2005-10-20 10:53:15Z ru $ 3Copyright (C) 1989-2000, 2001, 2002, 2003 Free Software Foundation, Inc. 4 5Permission is granted to make and distribute verbatim copies of 6this manual provided the copyright notice and this permission notice 7are preserved on all copies. 8 9Permission is granted to copy and distribute modified versions of this 10manual under the conditions for verbatim copying, provided that the 11entire resulting derived work is distributed under the terms of a 12permission notice identical to this one. 13 14Permission is granted to copy and distribute translations of this 15manual into another language, under the above conditions for modified 16versions, except that this permission notice may be included in 17translations approved by the Free Software Foundation instead of in 18the original English. 19.. 20. 21.do nr grotty_C \n[.C] 22.cp 0 23. 24.TH GROTTY @MAN1EXT@ "@MDATE@" "Groff Version @VERSION@" 25.SH NAME 26grotty \- groff driver for typewriter-like devices 27. 28. 29.SH SYNOPSIS 30.B grotty 31[ 32.B \-bBcdfhioruUv 33] [ 34.BI \-F dir 35] [ 36.IR files \|.\|.\|.\& 37] 38.PP 39It is possible to have whitespace between the 40.B \-F 41option and its parameter. 42. 43. 44.SH DESCRIPTION 45.B grotty 46translates the output of GNU 47.B troff 48into a form suitable for typewriter-like devices. 49Normally 50.B grotty 51should be invoked by using the 52.B groff 53command 54with a 55.BR \-Tascii , 56.BR \-Tlatin1 , 57.B \-Tkoi8-r 58or 59.B \-Tutf8 60option on ASCII based systems, and with 61.B \-Tcp1047 62and 63.B \-Tutf8 64on EBCDIC based hosts. 65If no files are given, 66.B grotty 67will read the standard input. 68A filename of 69.B \- 70will also cause 71.B grotty 72to read the standard input. 73Output is written to the standard output. 74.LP 75By default, 76.B grotty 77emits SGR escape sequences (from ISO 6429, also called ANSI color escapes) 78to change text attributes (bold, italic, colors). 79This makes it possible to have eight different \M[green]background\M[] 80and \m[red]foreground\m[] colors; additionally, bold and italic 81attributes can be used \f[BI]at the same time\f[] (by using the BI font). 82.LP 83The following colors are defined in 84.BR tty.tmac : 85black, white, red, green, blue, yellow, magenta, cyan. 86Unknown colors are mapped to the default color (which is dependent on the 87settings of the terminal; in most cases, this is black for the foreground 88and white for the background). 89.LP 90Use the 91.B \-c 92switch to revert to the old behaviour, printing a bold character 93.I c 94with the sequence 95.RI ` c 96.SM BACKSPACE 97.IR c ' 98and an italic character 99.I c 100by the sequence 101.RB ` _ 102.SM BACKSPACE 103.IR c '. 104At the same time, color output is disabled. 105The same effect can be achieved by setting either the 106.B GROFF_NO_SGR 107environment variable or using the `sgr' X command (see below). 108.LP 109For SGR support, it is necessary to use the 110.B \-R 111option of 112.BR less (1) 113to disable the interpretation of 114.BR grotty 's 115old output format. 116Consequently, all programs which use 117.B less 118as the pager program have to pass this option to it. 119For 120.BR man (1) 121in particular, either add 122.B \-R 123to the 124.B $PAGER 125environment variable, e.g.\& 126.RS 127.LP 128.B PAGER="/usr/bin/less -R" 129.br 130.B export PAGER 131.RE 132.LP 133or use the 134.B \-P 135option of 136.B man 137to set the pager executable and its options, or modify the configuration 138file of 139.B man 140in a similar fashion. 141.LP 142.BR grotty 's 143old output format can be displayed on a terminal 144by piping through 145.BR ul (1). 146Pagers such as 147.BR more (1) 148or 149.BR less (1) 150are also able to display these sequences. 151Use either 152.B \-B 153or 154.B \-U 155when piping into 156.BR less (1); 157use 158.B \-b 159when piping into 160.BR more (1). 161There is no need to filter the output through 162.BR col (1) 163since 164.B grotty 165never outputs reverse line feeds. 166.LP 167The font description file may contain a command 168.IP 169.BI internalname\ n 170.LP 171where 172.I n 173is a decimal integer. 174If the 01 bit in 175.I n 176is set, 177then the font will be treated as an italic font; 178if the 02 bit is set, 179then it will be treated as a bold font. 180The code field in the font description field gives the 181code which will be used to output the character. 182This code can also be used in the 183.B \[rs]N 184escape sequence in 185.BR troff . 186. 187. 188.SH OPTIONS 189.TP 190.B \-b 191Suppress the use of overstriking for bold characters. 192Ignored if 193.B \-c 194isn't used. 195. 196.TP 197.B \-B 198Use only overstriking for bold-italic characters. 199Ignored if 200.B \-c 201isn't used. 202. 203.TP 204.B \-c 205Use 206.BR grotty 's 207old output format (see above). 208This also disables color output. 209. 210.TP 211.B \-d 212Ignore all 213.B \[rs]D 214commands. 215Without this 216.B grotty 217will render 218.B \[rs]D'l\|.\|.\|.\&' 219commands that have at least one zero argument 220(and so are either horizontal or vertical) 221using 222.BR \- , 223.BR | , 224and 225.B + 226characters. 227. 228.TP 229.B \-f 230Use form feeds in the output. 231A form feed will be output at the end of each page that has no output 232on its last line. 233. 234.TP 235.BI \-F dir 236Prepend directory 237.IB dir /dev name 238to the search path for font and device description files; 239.I name 240is the name of the device, usually 241.BR ascii , 242.BR latin1 , 243.BR koi8-r , 244.BR utf8 , 245or 246.BR cp1047 . 247.TP 248.B \-h 249Use horizontal tabs in the output. 250Tabs are assumed to be set every 8 columns. 251. 252.TP 253.B \-i 254Use escape sequences to set the italic text attribute instead of the 255underline attribute for italic fonts (`I' and `BI'). 256Note that most terminals (including xterm) don't support this. 257Ignored if 258.B \-c 259is active. 260. 261.TP 262.B \-o 263Suppress overstriking (other than for bold or underlined characters in 264case the old output format has been activated with 265.BR \-c ). 266. 267.TP 268.B \-r 269Use escape sequences to set the reverse text attribute instead of the 270underline attribute for italic fonts (`I' and `BI'). 271Ignored if 272.B \-c 273is active. 274. 275.TP 276.B \-u 277Suppress the use of underlining for italic characters. 278Ignored if 279.B \-c 280isn't used. 281. 282.TP 283.B \-U 284Use only underlining for bold-italic characters. 285Ignored if 286.B \-c 287isn't used. 288. 289.TP 290.B \-v 291Print the version number. 292. 293. 294.SH USAGE 295.B grotty 296understands a single X command produced using the 297.B \[rs]X 298escape sequence. 299.TP 300.BI \[rs]X'tty:\ sgr\ n ' 301If 302.I n 303is non-zero or missing, enable SGR output (this is the default), otherwise 304use the old drawing scheme for bold and underline. 305. 306. 307.SH ENVIRONMENT 308.TP 309.B GROFF_NO_SGR 310If set, the old drawing scheme for bold and underline (using the 311backspace character) is active. 312Colors are disabled. 313. 314. 315.SH FILES 316.TP 317.B @FONTDIR@/devascii/DESC 318Device description file for 319.B ascii 320device. 321. 322.TP 323.BI @FONTDIR@/devascii/ F 324Font description file for font 325.I F 326of 327.B ascii 328device. 329.TP 330.B @FONTDIR@/devkoi8-r/DESC 331Device description file for 332.B koi8-r 333device. 334.TP 335.BI @FONTDIR@/devkoi8-r/ F 336Font description file for font 337.I F 338of 339.B koi8-r 340device. 341. 342.TP 343.B @FONTDIR@/devlatin1/DESC 344Device description file for 345.B latin1 346device. 347. 348.TP 349.BI @FONTDIR@/devlatin1/ F 350Font description file for font 351.I F 352of 353.B latin1 354device. 355. 356.TP 357.B @FONTDIR@/devutf8/DESC 358Device description file for 359.B utf8 360device. 361. 362.TP 363.BI @FONTDIR@/devutf8/ F 364Font description file for font 365.I F 366of 367.B utf8 368device. 369. 370.TP 371.B @FONTDIR@/devcp1047/DESC 372Device description file for 373.B cp1047 374device. 375. 376.TP 377.BI @FONTDIR@/devcp1047/ F 378Font description file for font 379.I F 380of 381.B cp1047 382device. 383. 384.TP 385.B @MACRODIR@/tty.tmac 386Macros for use with 387.BR grotty . 388. 389.TP 390.B @MACRODIR@/tty-char.tmac 391Additional klugdey character definitions for use with 392.BR grotty . 393.LP 394Note that on EBCDIC hosts, only files for the 395.B cp1047 396device will be installed. 397. 398. 399.SH BUGS 400.LP 401.B grotty 402is intended only for simple documents. 403.LP 404There is no support for fractional horizontal or vertical motions. 405.LP 406There is no support for 407.B \[rs]D 408commands 409other than horizontal and vertical lines. 410.LP 411Characters above the first line (ie with a vertical position of\~0) 412cannot be printed. 413.LP 414Color handling is different compared to 415.BR grops (@MAN1EXT@). 416.B \[rs]M 417doesn't set the fill color for closed graphic objects (which 418.B grotty 419doesn't support anyway) but changes the background color of the character 420cell, affecting all subsequent operations. 421. 422. 423.SH "SEE ALSO" 424.BR groff (@MAN1EXT@), 425.BR @g@troff (@MAN1EXT@), 426.BR groff_out (@MAN5EXT@), 427.BR groff_font (@MAN5EXT@), 428.BR groff_char (@MAN7EXT@), 429.BR ul (1), 430.BR more (1), 431.BR man (1), 432.BR less (1) 433. 434.cp \n[grotty_C] 435. 436.\" Local Variables: 437.\" mode: nroff 438.\" End: 439