1 files changed, 48 insertions, 0 deletions
diff --git a/src/lib-fts/fts-common.h b/src/lib-fts/fts-common.h
new file mode 100644
index 0000000..1a14463
--- /dev/null
+++ b/src/lib-fts/fts-common.h
@@ -0,0 +1,48 @@
+#ifndef FTS_COMMON_H
+#define FTS_COMMON_H
+
+/* Some might consider 0x02BB an apostrophe also. */
+#define IS_NONASCII_APOSTROPHE(c) \
+	((c) == 0x2019 || (c) == 0xFF07)
+#define IS_APOSTROPHE(c) \
+	((c) == 0x0027 || IS_NONASCII_APOSTROPHE(c))
+#define IS_WB5A_APOSTROPHE(c) \
+	((c) == 0x0027 || (c) == 0x2019)
+#define FTS_PREFIX_SPLAT_CHAR 0x002A /* '*' */
+#define IS_PREFIX_SPLAT(c) \
+	((c) == FTS_PREFIX_SPLAT_CHAR)
+/* The h letters are included because it is an exception in French.
+   A, E, H, I, O, U, Y, a, e, h, i, o, u, y */
+#define IS_ASCII_VOWEL(c) \
+	((c) == 0x0041 || (c) == 0x0045 || (c) == 0x0048 || (c) == 0x0049 || \
+	 (c) == 0x004F || (c) == 0x0055 || (c) == 0x0059 || (c) == 0x0061 || \
+	 (c) == 0x0065 || (c) == 0x0068 || (c) == 0x0069 || (c) == 0x006F || \
+	 (c) == 0x0075 || (c) == 0x0079)
+#define IS_NONASCII_VOWEL(c) \
+	/*latin capital letter a with grave, acute and circumflex*/ \
+	((c) == 0x00C0 || (c) == 0x00C1 || (c) == 0x00C2 || \
+	 /* latin capital letter e with grave, acute and circumflex */ \
+	 (c) == 0x00C8 || (c) == 0x00C9 || (c) == 0x00CA || \
+	 /*  latin capital letter i with grave, acute and circumflex */ \
+	 (c) == 0x00CC || (c) == 0x00CD || (c) == 0x00CE || \
+	 /*  latin capital letter o with grave, acute and circumflex */ \
+	 (c) == 0x00D2 || (c) == 0x00D3 || (c) == 0x00D4 || \
+	 /* latin capital letter u with grave, acute and circumflex */ \
+	 (c) == 0x00D9 || (c) == 0x00DA || (c) == 0x00DB || \
+	 /* latin capital letter y with acute */ \
+	 (c) == 0x00DD || \
+	 /* latin small letter a with grave, acute and circumflex */ \
+	 (c) == 0x00E0 || (c) == 0x00E1 || (c) == 0x00E2 || \
+	 /* latin small letter e with grave, acute and circumflex */ \
+	 (c) == 0x00E8 || (c) == 0x00E9 || (c) == 0x00EA || \
+	 /* latin small letter i with grave, acute and circumflex */ \
+	 (c) == 0x00EC || (c) == 0x00ED || (c) == 0x00EE || \
+	 /* latin small letter o with grave, acute and circumflex */ \
+	 (c) == 0x00F2 || (c) == 0x00F3 || (c) == 0x00F4 || \
+	 /* latin small letter u with grave, acute and circumflex */ \
+	 (c) == 0x00F9 || (c) == 0x00FA || (c) == 0x00FB || \
+	 /* latin small letter y with acute */ \
+	 (c) == 0x00FD )
+#define IS_VOWEL(c) \
+	(IS_ASCII_VOWEL(c) || IS_NONASCII_VOWEL(c))
+#endif