constify character property tables

* enc/jis/props.kwd: constify character property tables of JIS
  based encodings by perfect hash.
* enc/euc_jp.c, enc/shift_jis.c: use character property functions.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46039 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

4 files changed, 558 insertions, 0 deletions

diff --git a/enc/jis/props.h b/enc/jis/props.h
new file mode 100644
index 0000000000..f4262f580d
--- /dev/null
+++ b/enc/jis/props.h
@@ -0,0 +1,227 @@
+/* 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 --output-file=enc/jis/props.h 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* 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"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->onig_jis_property_pool_str5,      onigenc_jis_han},
+      {-1},
+#line 49 "enc/jis/props.kwd"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->onig_jis_property_pool_str7,    onigenc_jis_latin},
+#line 50 "enc/jis/props.kwd"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->onig_jis_property_pool_str8,    onigenc_jis_greek},
+      {-1},
+#line 46 "enc/jis/props.kwd"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->onig_jis_property_pool_str10, onigenc_jis_hiragana},
+#line 47 "enc/jis/props.kwd"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->onig_jis_property_pool_str11, onigenc_jis_katakana},
+#line 51 "enc/jis/props.kwd"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->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"
+
diff --git a/enc/jis/props.h.blt b/enc/jis/props.h.blt
new file mode 100644
index 0000000000..f4262f580d
--- /dev/null
+++ b/enc/jis/props.h.blt
@@ -0,0 +1,227 @@
+/* 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 --output-file=enc/jis/props.h 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* 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"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->onig_jis_property_pool_str5,      onigenc_jis_han},
+      {-1},
+#line 49 "enc/jis/props.kwd"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->onig_jis_property_pool_str7,    onigenc_jis_latin},
+#line 50 "enc/jis/props.kwd"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->onig_jis_property_pool_str8,    onigenc_jis_greek},
+      {-1},
+#line 46 "enc/jis/props.kwd"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->onig_jis_property_pool_str10, onigenc_jis_hiragana},
+#line 47 "enc/jis/props.kwd"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->onig_jis_property_pool_str11, onigenc_jis_katakana},
+#line 51 "enc/jis/props.kwd"
+      {(int)(long)&((struct onig_jis_property_pool_t *)0)->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"
+
diff --git a/enc/jis/props.kwd b/enc/jis/props.kwd
new file mode 100644
index 0000000000..b2ddde50c9
--- /dev/null
+++ b/enc/jis/props.kwd
@@ -0,0 +1,52 @@
+%{/* -*- 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* 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);
+%}
+
+struct enc_property;
+
+%%
+hiragana, onigenc_jis_hiragana
+katakana, onigenc_jis_katakana
+han,      onigenc_jis_han
+latin,    onigenc_jis_latin
+greek,    onigenc_jis_greek
+cyrillic, onigenc_jis_cyrillic
+%%
diff --git a/enc/jis/props.src b/enc/jis/props.src
new file mode 100644
index 0000000000..b2ddde50c9
--- /dev/null
+++ b/enc/jis/props.src
@@ -0,0 +1,52 @@
+%{/* -*- 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* 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);
+%}
+
+struct enc_property;
+
+%%
+hiragana, onigenc_jis_hiragana
+katakana, onigenc_jis_katakana
+han,      onigenc_jis_han
+latin,    onigenc_jis_latin
+greek,    onigenc_jis_greek
+cyrillic, onigenc_jis_cyrillic
+%%