Date: Sat, 7 Apr 2012 20:52:21 +0000 (UTC) From: Jilles Tjoelker <jilles@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r234001 - stable/8/bin/sh Message-ID: <201204072052.q37KqLCe078041@svn.freebsd.org>
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Author: jilles Date: Sat Apr 7 20:52:21 2012 New Revision: 234001 URL: http://svn.freebsd.org/changeset/base/234001 Log: sh: Allow variables starting with underscores in arithmetic. This is a direct commit because I do not want to merge the totally rewritten arithmetic expression code from 9.x where this already works. Example: _x=1; _x=$((_x+1)) Modified: stable/8/bin/sh/arith_lex.l Modified: stable/8/bin/sh/arith_lex.l ============================================================================== --- stable/8/bin/sh/arith_lex.l Sat Apr 7 15:30:46 2012 (r234000) +++ stable/8/bin/sh/arith_lex.l Sat Apr 7 20:52:21 2012 (r234001) @@ -90,7 +90,7 @@ static struct varname *varnames; return ARITH_NUM; } -[A-Za-z][A-Za-z0-9_]* { +[A-Za-z_][A-Za-z0-9_]* { /* * If variable doesn't exist, we should initialize * it to zero.
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