JehanneOS/mksh
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small character classes overhaul:

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• make fast character classes even faster by removing the C_SUBOP2 hack
  in favour of a separate seldom-used ksh_issubop2 macro (which also
  makes ctype() side-effect-safe) which is a slower class (no change there)
• optimise cases of ksh_isalphx followed by a ksh_isalnux loop
  (used parsing variable names)
• remove a misleading comment in initctypes() about \0 from pdksh
• rename C_ALPHA to C_ALPHX to make it more clear the underscore is included
• sprinkle a few ord() in there
• add new ksh_isalpha() which tests for [A-Za-z] (slow character class)
• there is no '_:\' drive on OS/2 (which inspired the whole changeset)
This commit is contained in:
tg
2017-03-26 00:10:26 +00:00
parent 034d0c0269
commit 7529e350cf
7 changed files with 33 additions and 33 deletions
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9
var.c
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@ -2,7 +2,7 @@
/*-
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
* 2011, 2012, 2013, 2014, 2015, 2016
* 2011, 2012, 2013, 2014, 2015, 2016, 2017
* mirabilos <m@mirbsd.org>
*
* Provided that these terms and disclaimer and all copyright notices
@ -28,7 +28,7 @@
#include <sys/sysctl.h>
#endif
__RCSID("$MirOS: src/bin/mksh/var.c,v 1.209 2016/11/11 23:31:39 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/var.c,v 1.210 2017/03/26 00:10:26 tg Exp $");
/*-
* Variables
@ -1053,8 +1053,9 @@ skip_varname(const char *s, bool aok)
size_t alen;
if (s && ksh_isalphx(*s)) {
while (*++s && ksh_isalnux(*s))
;
do {
++s;
} while (ksh_isalnux(*s));
if (aok && *s == '[' && (alen = array_ref_len(s)))
s += alen;
}