[ruby/prism] Add macThai

https://github.com/ruby/prism/commit/f654058f50

prism/enc/pm_encoding.h

@@ -194,6 +194,7 @@ extern pm_encoding_t pm_encoding_mac_greek;
 extern pm_encoding_t pm_encoding_mac_iceland;
 extern pm_encoding_t pm_encoding_mac_roman;
 extern pm_encoding_t pm_encoding_mac_romania;
+extern pm_encoding_t pm_encoding_mac_thai;
 extern pm_encoding_t pm_encoding_mac_turkish;
 extern pm_encoding_t pm_encoding_mac_ukraine;
 extern pm_encoding_t pm_encoding_shift_jis;

prism/enc/pm_tables.c

@@ -816,6 +816,30 @@ static uint8_t pm_encoding_mac_romania_table[256] = {
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Fx
 };
 
+/**
+ * Each element of the following table contains a bitfield that indicates a
+ * piece of information about the corresponding macThai character.
+ */
+static uint8_t pm_encoding_mac_thai_table[256] = {
+//  0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 1x
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 2x
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, // 3x
+    0, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, // 4x
+    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 0, 0, 0, 0, 0, // 5x
+    0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // 6x
+    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 0, // 7x
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 8x
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 9x
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Ax
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Bx
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Cx
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Dx
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Ex
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Fx
+};
+
 /**
  * Each element of the following table contains a bitfield that indicates a
  * piece of information about the corresponding macTurkish character.
@@ -1178,6 +1202,7 @@ PRISM_ENCODING_TABLE(mac_greek)
 PRISM_ENCODING_TABLE(mac_iceland)
 PRISM_ENCODING_TABLE(mac_roman)
 PRISM_ENCODING_TABLE(mac_romania)
+PRISM_ENCODING_TABLE(mac_thai)
 PRISM_ENCODING_TABLE(mac_turkish)
 PRISM_ENCODING_TABLE(mac_ukraine)
 PRISM_ENCODING_TABLE(windows_1250)
@@ -1542,6 +1567,16 @@ pm_encoding_t pm_encoding_mac_romania = {
     .multibyte = false
 };
 
+/** macThai */
+pm_encoding_t pm_encoding_mac_thai = {
+    .name = "macThai",
+    .char_width = pm_encoding_single_char_width,
+    .alnum_char = pm_encoding_mac_thai_alnum_char,
+    .alpha_char = pm_encoding_mac_thai_alpha_char,
+    .isupper_char = pm_encoding_mac_thai_isupper_char,
+    .multibyte = false
+};
+
 /** macTurkish */
 pm_encoding_t pm_encoding_mac_turkish = {
     .name = "macTurkish",

prism/prism.c

@@ -6139,6 +6139,7 @@ parser_lex_magic_comment_encoding_value(pm_parser_t *parser, const uint8_t *star
                 ENCODING1("macIceland", pm_encoding_mac_iceland);
                 ENCODING1("macRoman", pm_encoding_mac_roman);
                 ENCODING1("macRomania", pm_encoding_mac_romania);
+                ENCODING1("macThai", pm_encoding_mac_thai);
                 ENCODING1("macTurkish", pm_encoding_mac_turkish);
                 ENCODING1("macUkraine", pm_encoding_mac_ukraine);
                 break;

test/prism/encoding_test.rb

@@ -42,6 +42,7 @@ module Prism
       Encoding::MACICELAND =>   0x00...0x100,
       Encoding::MACROMAN =>     0x00...0x100,
       Encoding::MACROMANIA =>   0x00...0x100,
+      Encoding::MACTHAI =>   0x00...0x100,
       Encoding::MACTURKISH =>   0x00...0x100,
       Encoding::Windows_1250 => 0x00...0x100,
       Encoding::Windows_1251 => 0x00...0x100,