[ruby/prism] Hook up encoding file to prism

ruby/prism@93ec917dfe

Author: wildmaples

prism/enc/pm_encoding.h

@@ -158,6 +158,7 @@ extern const uint8_t pm_encoding_unicode_table[256];
 extern pm_encoding_t pm_encoding_ascii;
 extern pm_encoding_t pm_encoding_ascii_8bit;
 extern pm_encoding_t pm_encoding_big5;
+extern pm_encoding_t pm_encoding_cp51932;
 extern pm_encoding_t pm_encoding_euc_jp;
 extern pm_encoding_t pm_encoding_gbk;
 extern pm_encoding_t pm_encoding_iso_8859_1;

prism/prism.c

@@ -6033,6 +6033,7 @@ parser_lex_magic_comment_encoding_value(pm_parser_t *parser, const uint8_t *star
 
     // Then check all the others.
     ENCODING("big5", pm_encoding_big5);
+    ENCODING("cp51932", pm_encoding_cp51932);
     ENCODING("gbk", pm_encoding_gbk);
     ENCODING("iso-8859-1", pm_encoding_iso_8859_1);
     ENCODING("iso-8859-2", pm_encoding_iso_8859_2);