File 0006-skip_prefix-add-case-insensitive-variant.p... of Package git.9058

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File 0006-skip_prefix-add-case-insensitive-variant.patch of Package git.9058

From 41a80924aec0e94309786837b6f954a3b3f19b71 Mon Sep 17 00:00:00 2001
From: Jeff King <peff@peff.net>
Date: Sun, 13 May 2018 12:57:14 -0400
Subject: [PATCH 06/11] skip_prefix: add case-insensitive variant

We have the convenient skip_prefix() helper, but if you want
to do case-insensitive matching, you're stuck doing it by
hand. We could add an extra parameter to the function to
let callers ask for this, but the function is small and
somewhat performance-critical. Let's just re-implement it
for the case-insensitive version.

Signed-off-by: Jeff King <peff@peff.net>
---
 git-compat-util.h |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)

--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -948,6 +948,23 @@ static inline int sane_iscase(int x, int
 		return (x & 0x20) == 0;
 }
 
+/*
+ * Like skip_prefix, but compare case-insensitively. Note that the comparison
+ * is done via tolower(), so it is strictly ASCII (no multi-byte characters or
+ * locale-specific conversions).
+ */
+static inline int skip_iprefix(const char *str, const char *prefix,
+			       const char **out)
+{
+	do {
+		if (!*prefix) {
+			*out = str;
+			return 1;
+		}
+	} while (tolower(*str++) == tolower(*prefix++));
+	return 0;
+}
+
 static inline int strtoul_ui(char const *s, int base, unsigned int *result)
 {
 	unsigned long ul;

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File 0006-skip_prefix-add-case-insensitive-variant.patch of Package git.9058

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