Re: [PATCH 3/5] wildmatch: remove NEGATE_CLASS and NEGATE_CLASS2 macros
From: Masahiro Yamada <masahiroy@kernel.org>
Date: 2023-02-10 17:04:17
On Fri, Feb 10, 2023 at 10:14 PM Ævar Arnfjörð Bjarmason [off-list ref] wrote:
On Fri, Feb 10 2023, Masahiro Yamada wrote:quoted
The other glob patterns are hard-coded in dowild(). Do likewise. [...]diff --git a/wildmatch.c b/wildmatch.c index a510b3fd23..93800b8eac 100644 --- a/wildmatch.c +++ b/wildmatch.c@@ -14,10 +14,6 @@ typedef unsigned char uchar; -/* What character marks an inverted character class? */ -#define NEGATE_CLASS '!' -#define NEGATE_CLASS2 '^'Thanks, maybe these made sense in rsync's codebase, but...quoted
#define CC_EQ(class, len, litmatch) ((len) == sizeof (litmatch)-1 \ && *(class) == *(litmatch) \ && strncmp((char*)class, litmatch, len) == 0)@@ -137,12 +133,8 @@ static int dowild(const uchar *p, const uchar *text, unsigned int flags) return WM_ABORT_ALL; case '[': p_ch = *++p;...as the context shows we hardcode most of these tokens.quoted
-#ifdef NEGATE_CLASS2 - if (p_ch == NEGATE_CLASS2) - p_ch = NEGATE_CLASS; -#endifHrm, but isn't this a logic error? No it's not, because...quoted
/* Assign literal 1/0 because of "matched" comparison. */ - negated = p_ch == NEGATE_CLASS ? 1 : 0; + negated = p_ch == '!' || p_ch == '^' ? 1 : 0;...you're refcatoring thise while at it.
Yes, this is a trivial refactoring. Or, do you suggest splitting this into two patches, verbatim replace + a small clean-up?
Personally I'd prefer to just see this change without this, and it came as a surprise given the commit message. I find the pre-image easier to read (sans the macro check, which you should be removing).
-- Best Regards Masahiro Yamada