GopherProxy

	sed.1: add some missing info - sbase - suckless unix tools
	git clone git://git.suckless.org/sbase
	Log
	Files
	Refs
	README
	LICENSE
	---
	commit 782afdf8c6202298a35f37bbe6eaedc5f63a7776
	parent 20c27b1ad0f2fae65ede721c43f8cb66186d3049
	Author: Andrea Calligaris <[email protected]>
	Date: Fri, 6 Dec 2024 10:37:37 +0100

	sed.1: add some missing info

	There are some features that are coded already, might as well document them.

	Diffstat:
	M sed.1 \| 22 ++++++++++++++++++++--

	1 file changed, 20 insertions(+), 2 deletions(-)
	---
	diff --git a/sed.1 b/sed.1
	@@ -50,16 +50,32 @@ Append the commands from
	to the list of editing commands.
	.El
	.Sh EXTENDED DESCRIPTION
	-Editing commands take the form
	+Editing commands take the form:
	.Pp
	[address[,address]]function
	+.Pp
	+Commands can be separated by ';' or by a new line.
	+.Pp
	+Multiple functions for the specified address (or address-range) can be enclosed
	+in blocks with '{' and '}':
	+.Pp
	+[address[,address]] { function ; function }
	+.Pp
	.Ss Addresses
	Addresses are either blank, a positive decimal integer denoting a line
	number, the character '$' denoting the last line of input, or a regular
	-expression.
	+expression (in the format
	+.No / Ns
	+.Ar regexp Ns /).
	A command with no addresses matches every line, one address matches
	individual lines, and two addresses matches a range of lines from the
	first to the second address inclusive.
	+.Pp
	+The character '!' may be appended after the addresses,
	+in which case the function is executed only if the addresses
	+.Em don't
	+match.
	+.Pp
	.Ss Functions
	.Bl -tag -width Ds
	.It Ar a Op Ar text
	@@ -152,6 +168,8 @@ Replace each occurrence of a character from set 1 with the …
	character from set 2.
	.It Ar :label
	Create a label for b and t commands.
	+.It Ar #comment
	+The comment extends until the next newline.
	.It Ar =
	Write current input line number to output.
	.El