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.\"
.\" cook - file construction tool
.\" Copyright (C) 1997 Peter Miller;
.\" All rights reserved.
.\"
.\" This program is free software; you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License as published by
.\" the Free Software Foundation; either version 2 of the License, or
.\" (at your option) any later version.
.\"
.\" This program is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public License
.\" along with this program; if not, write to the Free Software
.\" Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
.\"
.\" MANIFEST: User Guide, Builtin Functions, Subst
.\"
.H 2 "substr"
The
.I substr
function is used to perform
substring extracton.
The first argument is the starting position in the string, starting from one.
The second argument is the number of characters to extract.
Thirst and subsequent arguments will be processed to extract sub-strings.
.H 3 "Example"
.TS
center,tab(;);
l l.
Expression;Result
_
[substr 1 1 Peter];P
[substr 3 99 Miller];ller
.TE
.H 3 "See Also"
subst,
patsubst
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