diff --git a/enc/depend b/enc/depend
index 21208491a7..71345a91fc 100644
--- a/enc/depend
+++ b/enc/depend
@@ -158,7 +158,7 @@ clean:
 % end
 % @ignore_error = $nmake ? '' : ' 2> /dev/null || true'
 % unless inplace
-	$(Q)$(RM) enc/unicode/name2ctype.h
+	$(Q)$(RM) enc/unicode/*/casefold.h enc/unicode/*/name2ctype.h
 	$(Q)$(RM) enc/jis/props.h
 	-$(Q)$(RMDIR) enc/unicode<%=@ignore_error%>
 % end
@@ -169,7 +169,7 @@ clean:
 clean-srcs:
 	$(Q)$(RM) <%=pathrep['$(TRANSCSRCS)']%>
 	-$(Q)$(RMDIR) <%=pathrep['enc/trans']%><%=@ignore_error%>
-	$(Q)$(RM) enc/unicode/name2ctype.h
+	$(Q)$(RM) enc/unicode/*/casefold.h enc/unicode/*/name2ctype.h
 	$(Q)$(RM) enc/jis/props.h
 	-$(Q)$(RMDIR) <%=pathrep['enc/unicode']%><%=@ignore_error%>
 	-$(Q)$(RMDIR) <%=pathrep['enc/props']%><%=@ignore_error%>
diff --git a/enc/jis/props.h b/enc/jis/props.h
deleted file mode 100644
index 4ae2e1fd23..0000000000
--- a/enc/jis/props.h
+++ /dev/null
@@ -1,227 +0,0 @@
-/* C code produced by gperf version 3.0.4 */
-/* Command-line: gperf -k1,3 -7 -c -j1 -i1 -t -C -P -t --ignore-case -H onig_jis_property_hash -Q onig_jis_property_pool -N onig_jis_property enc/jis/props.kwd  */
-
-#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
-      && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
-      && (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \
-      && ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \
-      && ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \
-      && ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \
-      && ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \
-      && ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \
-      && ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \
-      && ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \
-      && ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \
-      && ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \
-      && ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \
-      && ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \
-      && ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \
-      && ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \
-      && ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \
-      && ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \
-      && ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \
-      && ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \
-      && ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \
-      && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \
-      && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126))
-/* The character set is not based on ISO-646.  */
-error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>."
-#endif
-
-#line 1 "enc/jis/props.kwd"
-/* -*- c -*- */
-#define GPERF_DOWNCASE 1
-#define GPERF_CASE_STRNCMP 1
-
-static inline int
-gperf_case_strncmp(const char *s1, const char *s2, unsigned int n)
-{
-    const UChar *str = (const UChar *)s1;
-    const UChar *s = (const UChar *)s2;
-    return onigenc_with_ascii_strnicmp(ONIG_ENCODING_ASCII, str, str + n, s, n);
-}
-
-enum onigenc_jis_ctype {
-    onigenc_jis_min = ONIGENC_MAX_STD_CTYPE,
-    onigenc_jis_hiragana,
-    onigenc_jis_katakana,
-    onigenc_jis_han,
-    onigenc_jis_latin,
-    onigenc_jis_greek,
-    onigenc_jis_cyrillic,
-    onigenc_jis_max
-};
-
-enum {PropertyListNum = onigenc_jis_max - onigenc_jis_min - 1};
-
-static const OnigCodePoint* const PropertyList[PropertyListNum] = {
-    CR_Hiragana,
-    CR_Katakana,
-    CR_Han,
-    CR_Latin,
-    CR_Greek,
-    CR_Cyrillic,
-};
-
-struct enc_property {
-    signed char name;
-    unsigned char ctype;
-};
-
-static const struct enc_property *onig_jis_property(const char *str, unsigned int len);
-#line 43 "enc/jis/props.kwd"
-struct enc_property;
-
-#define TOTAL_KEYWORDS 6
-#define MIN_WORD_LENGTH 3
-#define MAX_WORD_LENGTH 8
-#define MIN_HASH_VALUE 5
-#define MAX_HASH_VALUE 12
-/* maximum key range = 8, duplicates = 0 */
-
-#ifndef GPERF_DOWNCASE
-#define GPERF_DOWNCASE 1
-static unsigned char gperf_downcase[256] =
-  {
-      0,   1,   2,   3,   4,   5,   6,   7,   8,   9,  10,  11,  12,  13,  14,
-     15,  16,  17,  18,  19,  20,  21,  22,  23,  24,  25,  26,  27,  28,  29,
-     30,  31,  32,  33,  34,  35,  36,  37,  38,  39,  40,  41,  42,  43,  44,
-     45,  46,  47,  48,  49,  50,  51,  52,  53,  54,  55,  56,  57,  58,  59,
-     60,  61,  62,  63,  64,  97,  98,  99, 100, 101, 102, 103, 104, 105, 106,
-    107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121,
-    122,  91,  92,  93,  94,  95,  96,  97,  98,  99, 100, 101, 102, 103, 104,
-    105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119,
-    120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134,
-    135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149,
-    150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164,
-    165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179,
-    180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194,
-    195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209,
-    210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224,
-    225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
-    240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254,
-    255
-  };
-#endif
-
-#ifndef GPERF_CASE_STRNCMP
-#define GPERF_CASE_STRNCMP 1
-static int
-gperf_case_strncmp (s1, s2, n)
-     register const char *s1;
-     register const char *s2;
-     register unsigned int n;
-{
-  for (; n > 0;)
-    {
-      unsigned char c1 = gperf_downcase[(unsigned char)*s1++];
-      unsigned char c2 = gperf_downcase[(unsigned char)*s2++];
-      if (c1 != 0 && c1 == c2)
-        {
-          n--;
-          continue;
-        }
-      return (int)c1 - (int)c2;
-    }
-  return 0;
-}
-#endif
-
-#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__cplusplus) || defined(__GNUC_STDC_INLINE__)
-inline
-#elif defined(__GNUC__)
-__inline
-#endif
-static unsigned int
-onig_jis_property_hash (str, len)
-     register const char *str;
-     register unsigned int len;
-{
-  static const unsigned char asso_values[] =
-    {
-      13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-      13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-      13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-      13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-      13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-      13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-      13, 13, 13, 13, 13, 13, 13,  3, 13,  2,
-      13,  1,  1, 13, 13,  2,  1, 13,  1, 13,
-      13, 13,  1, 13,  1, 13, 13, 13, 13, 13,
-      13, 13, 13, 13, 13, 13, 13, 13, 13,  3,
-      13,  2, 13,  1,  1, 13, 13,  2,  1, 13,
-       1, 13, 13, 13,  1, 13,  1, 13, 13, 13,
-      13, 13, 13, 13, 13, 13, 13, 13
-    };
-  return len + asso_values[(unsigned char)str[2]] + asso_values[(unsigned char)str[0]];
-}
-
-struct onig_jis_property_pool_t
-  {
-    char onig_jis_property_pool_str5[sizeof("han")];
-    char onig_jis_property_pool_str7[sizeof("latin")];
-    char onig_jis_property_pool_str8[sizeof("greek")];
-    char onig_jis_property_pool_str10[sizeof("hiragana")];
-    char onig_jis_property_pool_str11[sizeof("katakana")];
-    char onig_jis_property_pool_str12[sizeof("cyrillic")];
-  };
-static const struct onig_jis_property_pool_t onig_jis_property_pool_contents =
-  {
-    "han",
-    "latin",
-    "greek",
-    "hiragana",
-    "katakana",
-    "cyrillic"
-  };
-#define onig_jis_property_pool ((const char *) &onig_jis_property_pool_contents)
-#ifdef __GNUC__
-__inline
-#if defined __GNUC_STDC_INLINE__ || defined __GNUC_GNU_INLINE__
-__attribute__ ((__gnu_inline__))
-#endif
-#endif
-const struct enc_property *
-onig_jis_property (str, len)
-     register const char *str;
-     register unsigned int len;
-{
-  static const struct enc_property wordlist[] =
-    {
-      {-1}, {-1}, {-1}, {-1}, {-1},
-#line 48 "enc/jis/props.kwd"
-      {(char)offsetof(struct onig_jis_property_pool_t, onig_jis_property_pool_str5),      onigenc_jis_han},
-      {-1},
-#line 49 "enc/jis/props.kwd"
-      {(char)offsetof(struct onig_jis_property_pool_t, onig_jis_property_pool_str7),    onigenc_jis_latin},
-#line 50 "enc/jis/props.kwd"
-      {(char)offsetof(struct onig_jis_property_pool_t, onig_jis_property_pool_str8),    onigenc_jis_greek},
-      {-1},
-#line 46 "enc/jis/props.kwd"
-      {(char)offsetof(struct onig_jis_property_pool_t, onig_jis_property_pool_str10), onigenc_jis_hiragana},
-#line 47 "enc/jis/props.kwd"
-      {(char)offsetof(struct onig_jis_property_pool_t, onig_jis_property_pool_str11), onigenc_jis_katakana},
-#line 51 "enc/jis/props.kwd"
-      {(char)offsetof(struct onig_jis_property_pool_t, onig_jis_property_pool_str12), onigenc_jis_cyrillic}
-    };
-
-  if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
-    {
-      register int key = onig_jis_property_hash (str, len);
-
-      if (key <= MAX_HASH_VALUE && key >= 0)
-        {
-          register int o = wordlist[key].name;
-          if (o >= 0)
-            {
-              register const char *s = o + onig_jis_property_pool;
-
-              if ((((unsigned char)*str ^ (unsigned char)*s) & ~32) == 0 && !gperf_case_strncmp (str, s, len) && s[len] == '\0')
-                return &wordlist[key];
-            }
-        }
-    }
-  return 0;
-}
-#line 52 "enc/jis/props.kwd"
-