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-rw-r--r--src/util/string.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/util/string.h b/src/util/string.h
index 4c7a4068d..2f3c2615b 100644
--- a/src/util/string.h
+++ b/src/util/string.h
@@ -41,6 +41,15 @@ class Translations;
(((unsigned int)(x) >= 0x20) && \
( (unsigned int)(x) <= 0x7e))
+// Checks whether a value is in a Unicode private use area
+#define IS_PRIVATE_USE_CHAR(x) \
+ (((wchar_t)(x) >= 0xE000 && \
+ (wchar_t)(x) <= 0xF8FF) || \
+ ((wchar_t)(x) >= 0xF0000 && \
+ (wchar_t)(x) <= 0xFFFFD) || \
+ ((wchar_t)(x) >= 0x100000 && \
+ (wchar_t)(x) <= 0x10FFFD)) \
+
// Checks whether a byte is an inner byte for an utf-8 multibyte sequence
#define IS_UTF8_MULTB_INNER(x) \
(((unsigned char)(x) >= 0x80) && \