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Diffstat (limited to 'static/v10/man1/300.1')
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diff --git a/static/v10/man1/300.1 b/static/v10/man1/300.1 new file mode 100644 index 00000000..c100fe71 --- /dev/null +++ b/static/v10/man1/300.1 @@ -0,0 +1,228 @@ +.TH 300 1 +.SH NAME +300, 300s \- handle special functions of DASI 300 and 300s terminals +.SH SYNOPSIS +.B 300 +[ +.B +12 +] +[ +.B \-n +] +[ +.BI \-d t,l,c +] +.PP +.B 300s +[ +.B +12 +] +[ +.B \-n +] +[ +.BI \-d t,l,c +] +.SH DESCRIPTION +.I 300\^ +supports special functions and optimizes the use of the +.SM DASI +300 +(\s-1GSI\s+1 300 or +.SM DTC +300) terminal; +.I 300s\^ +performs the same functions for the +.SM DASI +300s (\s-1GSI\s+1 300s or +.SM DTC +300s) terminal. +It converts half-line forward, half-line reverse, and full-line reverse +motions to the correct vertical motions. +It also +attempts to draw Greek letters and other special symbols. +It permits convenient use of 12-pitch text. +It also reduces printing time 5 to 70%. +.I 300\^ +can be used +to print equations neatly, in the sequence: +.PP +.RS +neqn file +.B \&.\|.\|. +\(bv nroff \(bv 300 +.PP +.RE +.SM WARNING: +if your terminal has a +.SM PLOT +switch, make sure it is turned +.I on\^ +before +.I 300\^ +is used. +.PP +The behavior of +.I 300\^ +can be modified by the optional flag arguments to handle +12-pitch text, fractional line spacings, messages, and delays. +.TP 9 +.B +12 +permits use of 12-pitch, 6 lines/inch text. +.SM DASI +300 terminals normally allow only two combinations: 10-pitch, 6 lines/inch, +or 12-pitch, 8 lines/inch. +To obtain the 12-pitch, 6 lines per inch combination, the user should turn the +.SM PITCH +switch to 12, and use the +.B +12 +option. +.TP 9 +.BI \- n\^ +controls the size of half-line spacing. +A half-line is, by default, +equal to 4 vertical plot increments. +Because each increment equals 1/48 of an inch, +a 10-pitch line-feed requires 8 increments, +while a 12-pitch line-feed needs only 6. +The first digit of +.I n\^ +overrides the default value, thus allowing for individual taste +in the appearance of subscripts and superscripts. +For example, +.IR nroff (1) +half-lines could be made to act as quarter-lines by using +.BR \-2 . +The user could also obtain appropriate half-lines for +12-pitch, 8 lines/inch mode by using the option +.B \-3 +alone, +having set the +.SM PITCH +switch to 12-pitch. +.TP 9 +.BI \-d t , l , c\^ +controls delay factors. +The default setting is +.BR \-d3,90,30 . +.SM DASI +300 terminals sometimes produce +peculiar output when faced with +very long lines, +too many tab characters, +or long strings of blankless, non-identical characters. +One null (delay) character is inserted in a line for every set of +.I t\^ +tabs, +and for every contiguous string of +.I c\^ +non-blank, non-tab characters. +If a line is longer than +.I l\^ +bytes, 1+(total length)/20 nulls are inserted at the end of that line. +Items can be omitted from the end of the list, +implying use of the default values. +Also, a value of +zero +for +.I t\^ +.RI ( c ) +results in two null bytes per tab (character). +The former may be needed for C programs, the latter for files like +.BR /etc/passwd . +Because terminal behavior varies according to the specific characters printed and +the load on a system, +the user may have to experiment with these values to get correct output. +The +.B \-d +option exists only as a last resort +for those few cases that do not otherwise print properly. +For example, the file +.B /etc/passwd +may be printed using +.BR \-d3,30,5 . +The value +.B \-d0,1 +is a good one to use for C programs that have many +levels of indentation. +.IP +Note that the delay control interacts heavily +with the prevailing carriage return and +line-feed delays. +The +.IR stty (1) +modes +.B "nl0 cr2" +or +.B "nl0 cr3" +are recommended for most uses. +.PP +.I 300\^ +can be used with the +.I nroff\^ +.B \-s +flag or +.B \&.rd +requests, when it is necessary to insert paper manually or change fonts +in the middle of a document. +Instead of hitting the +return +key in these cases, +you must use the +line-feed +key to +get any response. +.PP +In many (but not all) cases, the following sequences are equivalent: +.RS +.PP +nroff \-T300 files +.B \&.\|.\|. +\ \ and\ \ \ nroff files +.B \&.\|.\|. +\(bv 300 +.br +nroff \-T300\-12 files +.B \&.\|.\|. +\ \ and\ \ \ nroff files +.B \&.\|.\|. +\(bv 300\ +12 +.PP +.RE +The use of +.I 300\^ +can thus often be avoided unless +special delays or options are required; +in a few cases, however, the additional movement optimization of +.I 300\^ +may produce better-aligned output. +.PP +The +.IR neqn (1) +names of, and +resulting output for, the Greek and special characters supported +by +.I 300\^ +are shown in +.IR greek (7). +.SH SEE ALSO +.IR 450 (1), +.IR eqn (1), +.IR graph (1G), +.IR mesg (1), +.IR stty (1), +.IR tabs (1), +.IR tbl (1), +.IR tplot (1G), +.IR troff (1), +.IR greek (7). +.SH BUGS +Some special characters cannot be correctly printed in column 1 +because the print head cannot be moved to the left from there. +.br +If your output contains Greek and/or reverse line-feeds, +use a friction-feed platen instead of a forms tractor; +although good enough for drafts, +the latter has a tendency to slip when reversing direction, +distorting Greek characters and misaligning the first line of text after one or more +reverse line-feeds. |