Add a standard definition of isascii() and use it to replace an open
coded high-bit test in pretty.c. While we're there, write the ESC
char as the more commonly used '\033' instead of as 0x1b to enhance
its grepability.
Signed-off-by: Rene Scharfe <rene.scharfe@xxxxxxxxxxxxxx>
---
git-compat-util.h | 2 ++
pretty.c | 3 +--
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/git-compat-util.h b/git-compat-util.h
index dcf4127..878d83d 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -319,6 +319,7 @@ static inline int has_extension(const char *filename, const char *ext)
}
/* Sane ctype - no locale, and works with signed chars */
+#undef isascii
#undef isspace
#undef isdigit
#undef isalpha
@@ -332,6 +333,7 @@ extern unsigned char sane_ctype[256];
#define GIT_GLOB_SPECIAL 0x08
#define GIT_REGEX_SPECIAL 0x10
#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
+#define isascii(x) (((x) & ~0x7f) == 0)
#define isspace(x) sane_istest(x,GIT_SPACE)
#define isdigit(x) sane_istest(x,GIT_DIGIT)
#define isalpha(x) sane_istest(x,GIT_ALPHA)
diff --git a/pretty.c b/pretty.c
index f499294..c018408 100644
--- a/pretty.c
+++ b/pretty.c
@@ -83,8 +83,7 @@ static int get_one_line(const char *msg)
/* High bit set, or ISO-2022-INT */
int non_ascii(int ch)
{
- ch = (ch & 0xff);
- return ((ch & 0x80) || (ch == 0x1b));
+ return !isascii(ch) || ch == '\033';
}
static int is_rfc2047_special(char ch)
--
1.6.2
--
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