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
expr.c
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@ -2,7 +2,7 @@
/*-
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
* 2011, 2012, 2013, 2014, 2016
* 2011, 2012, 2013, 2014, 2016, 2017
* mirabilos <m@mirbsd.org>
*
* Provided that these terms and disclaimer and all copyright notices
@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/expr.c,v 1.90 2016/11/07 16:58:48 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/expr.c,v 1.91 2017/03/26 00:10:23 tg Exp $");
#define EXPRTOK_DEFNS
#include "exprtok.h"
@ -572,8 +572,9 @@ exprtoken(Expr_state *es)
if (c == '\0')
es->tok = END;
else if (ksh_isalphx(c)) {
for (; ksh_isalnux(c); c = *cp)
cp++;
do {
c = *++cp;
} while (ksh_isalnux(c));
if (c == '[') {
size_t len;