From 66b8af3e124a0c9dbad05f40c2f6d27614f34349 Mon Sep 17 00:00:00 2001 From: Lars Schneider Date: Fri, 9 Mar 2018 18:35:29 +0100 Subject: [PATCH] strbuf: add a case insensitive starts_with() Check in a case insensitive manner if one string is a prefix of another string. This function is used in a subsequent commit. Signed-off-by: Lars Schneider Signed-off-by: Junio C Hamano --- git-compat-util.h | 1 + strbuf.c | 9 +++++++++ 2 files changed, 10 insertions(+) diff --git a/git-compat-util.h b/git-compat-util.h index 68b2ad531e..95c9b34832 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -455,6 +455,7 @@ extern void (*get_warn_routine(void))(const char *warn, va_list params); extern void set_die_is_recursing_routine(int (*routine)(void)); extern int starts_with(const char *str, const char *prefix); +extern int istarts_with(const char *str, const char *prefix); /* * If the string "str" begins with the string found in "prefix", return 1. diff --git a/strbuf.c b/strbuf.c index a20af696bc..0a24c3dd76 100644 --- a/strbuf.c +++ b/strbuf.c @@ -11,6 +11,15 @@ int starts_with(const char *str, const char *prefix) return 0; } +int istarts_with(const char *str, const char *prefix) +{ + for (; ; str++, prefix++) + if (!*prefix) + return 1; + else if (tolower(*str) != tolower(*prefix)) + return 0; +} + int skip_to_optional_arg_default(const char *str, const char *prefix, const char **arg, const char *def) { -- 2.47.1