version 1.33, 2011/09/26 23:07:31 |
version 1.35, 2011/11/21 22:19:23 |
Line 143 escape followed by an indicator: B (bold), I (italic), |
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Line 143 escape followed by an indicator: B (bold), I (italic), |
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(revert to previous mode). |
(revert to previous mode). |
A numerical representation 3, 2, or 1 (bold, italic, and regular, |
A numerical representation 3, 2, or 1 (bold, italic, and regular, |
respectively) may be used instead. |
respectively) may be used instead. |
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The indicator or numerical representative may be preceded by C |
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(constant-width), which is ignored. |
.Pp |
.Pp |
Examples: |
Examples: |
.Bl -tag -width Ds -offset indent -compact |
.Bl -tag -width Ds -offset indent -compact |
Line 943 using the next-line syntax. |
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Line 945 using the next-line syntax. |
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.%U http://heirloom.sourceforge.net/doctools/troff.pdf |
.%U http://heirloom.sourceforge.net/doctools/troff.pdf |
.Re |
.Re |
.Sh HISTORY |
.Sh HISTORY |
The RUNOFF typesetting system was written in PL/1 for the CTSS |
The RUNOFF typesetting system, whose input forms the basis for |
operating system by Jerome ("Jerry") E. Saltzer in 1961. |
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It was first used as the main documentation tool by Multics since 1963. |
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Robert ("Bob") H. Morris ported it to the GE-635 and called it |
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.Nm , |
.Nm , |
Doug McIlroy rewrote it in BCPL in 1969, |
was written in MAD and FAP for the CTSS operating system by Jerome E. |
Joseph F. Ossanna rewrote it in PDP-11 assembly in 1973, |
Saltzer in 1964. |
and Brian W. Kernighan rewrote it in C in 1975. |
Doug McIlroy rewrote it in BCPL in 1969, renaming it |
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.Nm . |
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Dennis M. Ritchie rewrote McIlroy's |
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.Nm |
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in PDP-11 assmebly for |
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.At v1 , |
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Joseph F. Ossanna improved roff and renamed it nroff |
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for |
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.At v2 , |
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then ported nroff to C as troff, which Brian W. Kernighan released with |
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.At v7 . |
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In 1989, James Clarke re-implemented troff in C++, naming it groff. |
.Sh AUTHORS |
.Sh AUTHORS |
.An -nosplit |
.An -nosplit |
This |
This |