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Diffstat (limited to 'share/man/man7/roff.7')
| -rw-r--r-- | share/man/man7/roff.7 | 45 |
1 files changed, 37 insertions, 8 deletions
diff --git a/share/man/man7/roff.7 b/share/man/man7/roff.7 index 4126d99170f..b1dc80dc889 100644 --- a/share/man/man7/roff.7 +++ b/share/man/man7/roff.7 @@ -1,4 +1,4 @@ -.\" $OpenBSD: roff.7,v 1.8 2011/01/09 15:24:57 schwarze Exp $ +.\" $OpenBSD: roff.7,v 1.9 2011/01/24 23:13:56 schwarze Exp $ .\" .\" Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv> .\" Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org> @@ -15,7 +15,7 @@ .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" -.Dd $Mdocdate: January 9 2011 $ +.Dd $Mdocdate: January 24 2011 $ .Dt ROFF 7 .Os .Sh NAME @@ -86,6 +86,38 @@ Thus, the following request lines are all equivalent: \&.ig end \&. ig end .Ed +.Sh MACRO SYNTAX +Macros can be defined by the +.Sx \&de +request. +When called, they follow the same syntax as requests, except that +macro arguments may optionally be quoted by enclosing them +in double quote characters +.Pq Sq \(dq . +To be recognized as the beginning of a quoted argument, the opening +quote character must be preceded by a space character. +.Pp +A quoted argument may contain whitespace, and pairs of double quote +characters +.Pq Sq Qq +resolve to single double quote characters. +A quoted argument extends to the next double quote character that is not +part of a pair, or to the end of the input line, whichever comes earlier. +Leaving out the terminating double quote character at the end of the line +is discouraged. +For clarity, if more arguments follow on the same input line, +it is recommended to follow the terminating double quote character +by a space character; in case the next character after the terminating +double quote character is anything else, it is regarded as the beginning +of the next, unquoted argument. +.Pp +Both in quoted and unquoted arguments, pairs of backslashes +.Pq Sq \e\e +resolve to single backslashes. +In unquoted arguments, space characters can alternatively be included +by preceding them with a backslash +.Pq Sq \e\~ , +but quoting is usually better for clarity. .Sh REQUEST REFERENCE The .Xr mandoc 1 @@ -174,12 +206,9 @@ The macro can be invoked later using the syntax .Pp .D1 Pf . Ar name Op Ar argument Op Ar argument ... .Pp -Arguments are separated by blank characters and can be quoted -using double-quotes -.Pq Sq \(dq -to allow inclusion of blank characters into arguments. -To include the double-quote character into a quoted argument, -escape it from ending the argument by doubling it. +Regarding argument parsing, see +.Sx MACRO SYNTAX +above. .Pp The line invoking the macro will be replaced in the input stream by the |