* License or the Artistic License, as specified in the README file.
*
* Macros to implement UTF-EBCDIC as perl's internal encoding
- * Taken from version 7.1 of Unicode Technical Report #16:
+ * Adapted from version 7.1 of Unicode Technical Report #16:
* http://www.unicode.org/unicode/reports/tr16
*
* To summarize, the way it works is:
- * To convert an EBCDIC character to UTF-EBCDIC:
- * 1) convert to Unicode. The table in this file that does this for
- * EBCDIC bytes is PL_e2a (with inverse PLa2e). The 'a' stands for
- * ASCIIish, meaning latin1.
- * 2) convert that to a utf8-like string called I8 (I stands for
+ * To convert an EBCDIC code point to UTF-EBCDIC:
+ * 1) convert to Unicode. No conversion is necesary for code points above
+ * 255, as Unicode and EBCDIC are identical in this range. For smaller
+ * code points, the conversion is done by lookup in the PL_e2a table (with
+ * inverse PL_a2e) in the generated file 'ebcdic_tables.h'. The 'a'
+ * stands for ASCII platform, meaning 0-255 Unicode.
+ * 2) convert that to a utf8-like string called I8 ('I' stands for
* intermediate) with variant characters occupying multiple bytes. This
* step is similar to the utf8-creating step from Unicode, but the details
* are different. This transformation is called UTF8-Mod. There is a
* invariant byte starts with 0 starts with 0 or 100
* continuation byte starts with 10 starts with 101
* start byte same in both: if the code point requires N bytes,
- * then the leading N bits are 1, followed by a 0. (No
- * trailing 0 for the very largest possible allocation
- * in I8, far beyond the current Unicode standard's
- * max, as shown in the comment later in this file.)
- * 3) Use the table published in tr16 to convert each byte from step 2 into
- * final UTF-EBCDIC. That table is reproduced in this file as PL_utf2e,
- * and its inverse is PL_e2utf. They are constructed so that all EBCDIC
- * invariants remain invariant, but no others do. For example, the
- * ordinal value of 'A' is 193 in EBCDIC, and also is 193 in UTF-EBCDIC.
- * Step 1) converts it to 65, Step 2 leaves it at 65, and Step 3 converts
- * it back to 193. As an example of how a variant character works, take
- * LATIN SMALL LETTER Y WITH DIAERESIS, which is typically 0xDF in
- * EBCDIC. Step 1 converts it to the Unicode value, 0xFF. Step 2
- * converts that to two bytes = 11000111 10111111 = C7 BF, and Step 3
- * converts those to 0x8B 0x73. The table is constructed so that the
- * first byte of the final form of a variant will always have its upper
- * bit set (at least in the encodings that Perl recognizes, and probably
- * all). But note that the upper bit of some invariants is also 1.
- *
+ * then the leading N bits are 1, followed by a 0. If
+ * all 8 bits in the first byte are 1, the code point
+ * will occupy 14 bytes (compared to 13 in Perl's
+ * extended UTF-8). This is incompatible with what
+ * tr16 implies should be the representation of code
+ * points 2**30 and above, but allows Perl to be able
+ * to represent all code points that fit in a 64-bit
+ * word in either our extended UTF-EBCDIC or UTF-8.
+ * 3) Use the algorithm in tr16 to convert each byte from step 2 into
+ * final UTF-EBCDIC. This is done by table lookup from a table
+ * constructed from the algorithm, reproduced in ebcdic_tables.h as
+ * PL_utf2e, with its inverse being PL_e2utf. They are constructed so that
+ * all EBCDIC invariants remain invariant, but no others do, and the first
+ * byte of a variant will always have its upper bit set. But note that
+ * the upper bit of some invariants is also 1. The table also is designed
+ * so that lexically comparing two UTF-EBCDIC-variant characters yields
+ * the Unicode code point order. (To get native code point order, one has
+ * to convert the latin1-range characters to their native code point
+ * value.)
+ *
+ * For example, the ordinal value of 'A' is 193 in EBCDIC, and also is 193 in
+ * UTF-EBCDIC. Step 1) converts it to 65, Step 2 leaves it at 65, and Step 3
+ * converts it back to 193. As an example of how a variant character works,
+ * take LATIN SMALL LETTER Y WITH DIAERESIS, which is typically 0xDF in
+ * EBCDIC. Step 1 converts it to the Unicode value, 0xFF. Step 2 converts
+ * that to two bytes = 11000111 10111111 = C7 BF, and Step 3 converts those to
+ * 0x8B 0x73.
+ *
* If you're starting from Unicode, skip step 1. For UTF-EBCDIC to straight
* EBCDIC, reverse the steps.
*
* The EBCDIC invariants have been chosen to be those characters whose Unicode
* equivalents have ordinal numbers less than 160, that is the same characters
* that are expressible in ASCII, plus the C1 controls. So there are 160
- * invariants instead of the 128 in UTF-8. (My guess is that this is because
- * the C1 control NEL (and maybe others) is important in IBM.)
+ * invariants instead of the 128 in UTF-8.
*
* The purpose of Step 3 is to make the encoding be invariant for the chosen
* characters. This messes up the convenient patterns found in step 2, so
* generally, one has to undo step 3 into a temporary to use them. However,
- * a "shadow", or parallel table, PL_utf8skip, has been constructed so that for
- * each byte, it says how long the sequence is if that byte were to begin it
+ * one "shadow", or parallel table, PL_utf8skip, has been constructed that
+ * doesn't require undoing things. It is such that for each byte, it says
+ * how long the sequence is if that (UTF-EBCDIC) byte were to begin it
+ *
+ * There are actually 3 slightly different UTF-EBCDIC encodings in
+ * ebcdic_tables.h, one for each of the code pages recognized by Perl. That
+ * means that there are actually three different sets of tables, one for each
+ * code page. (If Perl is compiled on platforms using another EBCDIC code
+ * page, it may not compile, or Perl may silently mistake it for one of the
+ * three.)
+ *
+ * Note that tr16 actually only specifies one version of UTF-EBCDIC, based on
+ * the 1047 encoding, and which is supposed to be used for all code pages.
+ * But this doesn't work. To illustrate the problem, consider the '^' character.
+ * On a 037 code page it is the single byte 176, whereas under 1047 UTF-EBCDIC
+ * it is the single byte 95. If Perl implemented tr16 exactly, it would mean
+ * that changing a string containing '^' to UTF-EBCDIC would change that '^'
+ * from 176 to 95 (and vice-versa), violating the rule that ASCII-range
+ * characters are the same in UTF-8 or not. Much code in Perl assumes this
+ * rule. See for example
+ * http://grokbase.com/t/perl/mvs/025xf0yhmn/utf-ebcdic-for-posix-bc-malformed-utf-8-character
+ * What Perl does is create a version of UTF-EBCDIC suited to each code page;
+ * the one for the 1047 code page is identical to what's specified in tr16.
+ * This complicates interchanging files between computers using different code
+ * pages. Best is to convert to I8 before sending them, as the I8
+ * representation is the same no matter what the underlying code page is.
*
- * There are actually 3 slightly different UTF-EBCDIC encodings in this file,
- * one for each of the code pages recognized by Perl. That means that there
- * are actually three different sets of tables, one for each code page. (If
- * Perl is compiled on platforms using another EBCDIC code page, it may not
- * compile, or Perl may silently mistake it for one of the three.)
+ * Because of the way UTF-EBCDIC is constructed, the lowest 32 code points that
+ * aren't equivalent to ASCII characters nor C1 controls form the set of
+ * continuation bytes; the remaining 64 non-ASCII, non-control code points form
+ * the potential start bytes, in order. (However, the first 5 of these lead to
+ * malformed overlongs, so there really are only 59 start bytes, and the first
+ * three of the 59 are the start bytes for the Latin1 range.) Hence the
+ * UTF-EBCDIC for the smallest variant code point, 0x160, will have likely 0x41
+ * as its continuation byte, provided 0x41 isn't an ASCII or C1 equivalent.
+ * And its start byte will be the code point that is 37 (32+5) non-ASCII,
+ * non-control code points past it. (0 - 3F are controls, and 40 is SPACE,
+ * leaving 41 as the first potentially available one.) In contrast, on ASCII
+ * platforms, the first 64 (not 32) non-ASCII code points are the continuation
+ * bytes. And the first 2 (not 5) potential start bytes form overlong
+ * malformed sequences.
*
* EBCDIC characters above 0xFF are the same as Unicode in Perl's
* implementation of all 3 encodings, so for those Step 1 is trivial.
*
* (Note that the entries for invariant characters are necessarily the same in
- * PL_e2a and PLe2f, and the same for their inverses.)
+ * PL_e2a and PL_e2utf; likewise for their inverses.)
*
* UTF-EBCDIC strings are the same length or longer than UTF-8 representations
* of the same string. The maximum code point representable as 2 bytes in
START_EXTERN_C
#ifdef DOINIT
-/* Indexed by encoded byte this table gives the length of the sequence.
- Adapted from the shadow flags table in tr16.
- The entries marked 9 in tr16 are continuation bytes and are marked
- as length 1 here so that we can recover.
-*/
-#if '^' == 95 /* if defined(__MVS__) || defined(??) (VM/ESA?) 1047 */
-EXTCONST unsigned char PL_utf8skip[] = {
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,2,2,2,2,2,1,1,1,1,1,1,1,
-2,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,
-2,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,
-2,1,1,1,1,1,1,1,1,1,2,2,2,1,2,2,
-2,2,2,2,2,2,2,3,3,3,3,3,3,1,3,3,
-1,1,1,1,1,1,1,1,1,1,3,3,3,3,3,3,
-1,1,1,1,1,1,1,1,1,1,3,3,4,4,4,4,
-1,4,1,1,1,1,1,1,1,1,4,4,4,5,5,5,
-1,1,1,1,1,1,1,1,1,1,5,6,6,7,7,1
-};
-#endif
-
-#if '^' == 106 /* if defined(_OSD_POSIX) POSIX-BC */
-unsigned char PL_utf8skip[] = {
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,2,2,2,2,2,3,1,1,1,1,1,1,
-2,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,
-2,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,
-2,3,1,1,1,1,1,1,1,1,2,2,2,3,2,2,
-1,2,2,2,2,2,2,3,3,3,2,1,1,1,3,3,
-4,1,1,1,1,1,1,1,1,1,3,3,3,3,3,3,
-1,1,1,1,1,1,1,1,1,1,3,3,4,6,4,4,
-7,4,1,1,1,1,1,1,1,1,4,4,4,5,5,5,
-1,1,1,1,1,1,1,1,1,1,5,1,6,1,7,1
-};
-#endif
-
-#if '^' == 176 /* if defined(??) (OS/400?) 037 */
-unsigned char PL_utf8skip[] = {
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,
-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-1,1,1,1,2,2,2,2,2,1,1,1,1,1,1,1,
-2,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,
-2,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,
-2,1,1,1,1,1,1,1,1,1,2,2,2,3,2,2,
-1,2,2,2,2,2,2,3,3,3,1,1,3,3,3,3,
-1,1,1,1,1,1,1,1,1,1,3,3,3,3,3,3,
-1,1,1,1,1,1,1,1,1,1,3,3,4,4,4,4,
-1,4,1,1,1,1,1,1,1,1,4,4,4,5,5,5,
-1,1,1,1,1,1,1,1,1,1,5,6,6,7,7,1
-};
-#endif
-
-/* Transform tables from tr16 applied after encoding to render encoding EBCDIC
- * like, meaning that all the invariants are actually invariant, eg, that 'A'
- * remains 'A' */
-
-#if '^' == 95 /* if defined(__MVS__) || defined(??) (VM/ESA?) 1047 */
-EXTCONST unsigned char PL_utf2e[] = { /* I8 to EBCDIC (IBM-1047) */
- 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F, 0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26, 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D, 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
- 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
- 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
- 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
- 0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
- 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x06, 0x17, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x09, 0x0A, 0x1B,
- 0x30, 0x31, 0x1A, 0x33, 0x34, 0x35, 0x36, 0x08, 0x38, 0x39, 0x3A, 0x3B, 0x04, 0x14, 0x3E, 0xFF,
- 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56,
- 0x57, 0x58, 0x59, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x70, 0x71, 0x72, 0x73,
- 0x74, 0x75, 0x76, 0x77, 0x78, 0x80, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x9A, 0x9B, 0x9C,
- 0x9D, 0x9E, 0x9F, 0xA0, 0xAA, 0xAB, 0xAC, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6,
- 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBE, 0xBF, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xDA, 0xDB,
- 0xDC, 0xDD, 0xDE, 0xDF, 0xE1, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE
-};
-
-EXTCONST unsigned char PL_e2utf[] = { /* EBCDIC (IBM-1047) to I8 */
- 0x00, 0x01, 0x02, 0x03, 0x9C, 0x09, 0x86, 0x7F, 0x97, 0x8D, 0x8E, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x9D, 0x0A, 0x08, 0x87, 0x18, 0x19, 0x92, 0x8F, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x17, 0x1B, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x05, 0x06, 0x07,
- 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, 0x98, 0x99, 0x9A, 0x9B, 0x14, 0x15, 0x9E, 0x1A,
- 0x20, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
- 0x26, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
- 0x2D, 0x2F, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
- 0xBC, 0xBD, 0xBE, 0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
- 0xC5, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB,
- 0xCC, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2,
- 0xD3, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0xD4, 0xD5, 0xD6, 0x5B, 0xD7, 0xD8,
- 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0x5D, 0xE6, 0xE7,
- 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED,
- 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3,
- 0x5C, 0xF4, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA,
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF, 0x9F
-};
-#endif /* 1047 */
-
-#if '^' == 106 /* if defined(_OSD_POSIX) POSIX-BC */
-unsigned char PL_utf2e[] = { /* I8 to EBCDIC (POSIX-BC) */
- 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F, 0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26, 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D, 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
- 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
- 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
- 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xBB, 0xBC, 0xBD, 0x6A, 0x6D,
- 0x4A, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
- 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xFB, 0x4F, 0xFD, 0xFF, 0x07,
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x06, 0x17, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x09, 0x0A, 0x1B,
- 0x30, 0x31, 0x1A, 0x33, 0x34, 0x35, 0x36, 0x08, 0x38, 0x39, 0x3A, 0x3B, 0x04, 0x14, 0x3E, 0x5F,
- 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0xB0, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56,
- 0x57, 0x58, 0x59, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0xD0, 0x70, 0x71, 0x72, 0x73,
- 0x74, 0x75, 0x76, 0x77, 0x78, 0x80, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x9A, 0x9B, 0x9C,
- 0x9D, 0x9E, 0x9F, 0xA0, 0xAA, 0xAB, 0xAC, 0xAE, 0xAF, 0xBA, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6,
- 0xB7, 0xB8, 0xB9, 0xAD, 0x79, 0xA1, 0xBE, 0xBF, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xDA, 0xDB,
- 0xDC, 0xC0, 0xDE, 0xDF, 0xE1, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xFA, 0xDD, 0xFC, 0xE0, 0xFE
-};
-
-unsigned char PL_e2utf[] = { /* EBCDIC (POSIX-BC) to I8 */
- 0x00, 0x01, 0x02, 0x03, 0x9C, 0x09, 0x86, 0x7F, 0x97, 0x8D, 0x8E, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x9D, 0x0A, 0x08, 0x87, 0x18, 0x19, 0x92, 0x8F, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x17, 0x1B, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x05, 0x06, 0x07,
- 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, 0x98, 0x99, 0x9A, 0x9B, 0x14, 0x15, 0x9E, 0x1A,
- 0x20, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0x60, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
- 0x26, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x9F,
- 0x2D, 0x2F, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0x5E, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
- 0xBC, 0xBD, 0xBE, 0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xE4, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
- 0xC5, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB,
- 0xCC, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2,
- 0xD3, 0xE5, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0xD4, 0xD5, 0xD6, 0xE3, 0xD7, 0xD8,
- 0xA9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0xD9, 0x5B, 0x5C, 0x5D, 0xE6, 0xE7,
- 0xF1, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED,
- 0xBB, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0xEE, 0xEF, 0xF0, 0xFC, 0xF2, 0xF3,
- 0xFE, 0xF4, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA,
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0xFB, 0x7B, 0xFD, 0x7D, 0xFF, 0x7E
-};
-#endif /* POSIX-BC */
-
-#if '^' == 176 /* if defined(??) (OS/400?) 037 */
-unsigned char PL_utf2e[] = { /* I8 to EBCDIC (IBM-037) */
- 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F, 0x16, 0x05, 0x25, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26, 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D, 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
- 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
- 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
- 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xBA, 0xE0, 0xBB, 0xB0, 0x6D,
- 0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
- 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x15, 0x06, 0x17, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x09, 0x0A, 0x1B,
- 0x30, 0x31, 0x1A, 0x33, 0x34, 0x35, 0x36, 0x08, 0x38, 0x39, 0x3A, 0x3B, 0x04, 0x14, 0x3E, 0xFF,
- 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56,
- 0x57, 0x58, 0x59, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x70, 0x71, 0x72, 0x73,
- 0x74, 0x75, 0x76, 0x77, 0x78, 0x80, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x9A, 0x9B, 0x9C,
- 0x9D, 0x9E, 0x9F, 0xA0, 0xAA, 0xAB, 0xAC, 0xAE, 0xAF, 0x5F, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6,
- 0xB7, 0xB8, 0xB9, 0xAD, 0xBD, 0xBC, 0xBE, 0xBF, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xDA, 0xDB,
- 0xDC, 0xDD, 0xDE, 0xDF, 0xE1, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE
-};
-
-unsigned char PL_e2utf[] = { /* EBCDIC (IBM-037) to I8 */
- 0x00, 0x01, 0x02, 0x03, 0x9C, 0x09, 0x86, 0x7F, 0x97, 0x8D, 0x8E, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x9D, 0x85, 0x08, 0x87, 0x18, 0x19, 0x92, 0x8F, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x80, 0x81, 0x82, 0x83, 0x84, 0x0A, 0x17, 0x1B, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x05, 0x06, 0x07,
- 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, 0x98, 0x99, 0x9A, 0x9B, 0x14, 0x15, 0x9E, 0x1A,
- 0x20, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
- 0x26, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0xD9,
- 0x2D, 0x2F, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
- 0xBC, 0xBD, 0xBE, 0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
- 0xC5, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB,
- 0xCC, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2,
- 0xD3, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0xD4, 0xD5, 0xD6, 0xE3, 0xD7, 0xD8,
- 0x5E, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0x5B, 0x5D, 0xE5, 0xE4, 0xE6, 0xE7,
- 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED,
- 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3,
- 0x5C, 0xF4, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA,
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF, 0x9F
-};
-#endif /* 037 */
-
-/* These tables moved from perl.h and converted to hex.
- They map platform code page from/to bottom 256 codes of Unicode (i.e. iso-8859-1).
-*/
-
-#if '^' == 95 /* if defined(__MVS__) || defined(??) (VM/ESA?) 1047 */
-EXTCONST unsigned char PL_a2e[] = { /* ASCII (iso-8859-1) to EBCDIC (IBM-1047) */
- 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F, 0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26, 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D, 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
- 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
- 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
- 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
- 0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
- 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x06, 0x17, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x09, 0x0A, 0x1B,
- 0x30, 0x31, 0x1A, 0x33, 0x34, 0x35, 0x36, 0x08, 0x38, 0x39, 0x3A, 0x3B, 0x04, 0x14, 0x3E, 0xFF,
- 0x41, 0xAA, 0x4A, 0xB1, 0x9F, 0xB2, 0x6A, 0xB5, 0xBB, 0xB4, 0x9A, 0x8A, 0xB0, 0xCA, 0xAF, 0xBC,
- 0x90, 0x8F, 0xEA, 0xFA, 0xBE, 0xA0, 0xB6, 0xB3, 0x9D, 0xDA, 0x9B, 0x8B, 0xB7, 0xB8, 0xB9, 0xAB,
- 0x64, 0x65, 0x62, 0x66, 0x63, 0x67, 0x9E, 0x68, 0x74, 0x71, 0x72, 0x73, 0x78, 0x75, 0x76, 0x77,
- 0xAC, 0x69, 0xED, 0xEE, 0xEB, 0xEF, 0xEC, 0xBF, 0x80, 0xFD, 0xFE, 0xFB, 0xFC, 0xBA, 0xAE, 0x59,
- 0x44, 0x45, 0x42, 0x46, 0x43, 0x47, 0x9C, 0x48, 0x54, 0x51, 0x52, 0x53, 0x58, 0x55, 0x56, 0x57,
- 0x8C, 0x49, 0xCD, 0xCE, 0xCB, 0xCF, 0xCC, 0xE1, 0x70, 0xDD, 0xDE, 0xDB, 0xDC, 0x8D, 0x8E, 0xDF
-};
-
-EXTCONST unsigned char PL_e2a[] = { /* EBCDIC (IBM-1047) to ASCII (iso-8859-1) */
- 0x00, 0x01, 0x02, 0x03, 0x9C, 0x09, 0x86, 0x7F, 0x97, 0x8D, 0x8E, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x9D, 0x0A, 0x08, 0x87, 0x18, 0x19, 0x92, 0x8F, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x17, 0x1B, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x05, 0x06, 0x07,
- 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, 0x98, 0x99, 0x9A, 0x9B, 0x14, 0x15, 0x9E, 0x1A,
- 0x20, 0xA0, 0xE2, 0xE4, 0xE0, 0xE1, 0xE3, 0xE5, 0xE7, 0xF1, 0xA2, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
- 0x26, 0xE9, 0xEA, 0xEB, 0xE8, 0xED, 0xEE, 0xEF, 0xEC, 0xDF, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
- 0x2D, 0x2F, 0xC2, 0xC4, 0xC0, 0xC1, 0xC3, 0xC5, 0xC7, 0xD1, 0xA6, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
- 0xF8, 0xC9, 0xCA, 0xCB, 0xC8, 0xCD, 0xCE, 0xCF, 0xCC, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
- 0xD8, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0xAB, 0xBB, 0xF0, 0xFD, 0xFE, 0xB1,
- 0xB0, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0xAA, 0xBA, 0xE6, 0xB8, 0xC6, 0xA4,
- 0xB5, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0xA1, 0xBF, 0xD0, 0x5B, 0xDE, 0xAE,
- 0xAC, 0xA3, 0xA5, 0xB7, 0xA9, 0xA7, 0xB6, 0xBC, 0xBD, 0xBE, 0xDD, 0xA8, 0xAF, 0x5D, 0xB4, 0xD7,
- 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0xAD, 0xF4, 0xF6, 0xF2, 0xF3, 0xF5,
- 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0xB9, 0xFB, 0xFC, 0xF9, 0xFA, 0xFF,
- 0x5C, 0xF7, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0xB2, 0xD4, 0xD6, 0xD2, 0xD3, 0xD5,
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0xB3, 0xDB, 0xDC, 0xD9, 0xDA, 0x9F
-};
-
-EXTCONST unsigned char PL_fold[] = { /* fast EBCDIC case folding table, 'A' =>
- 'a'; 'a' => 'A' */
- 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, 65, 98, 99, 100, 101, 102, 103,
- 104, 105, 74, 75, 76, 77, 78, 79,
- 80, 113, 114, 115, 116, 117, 118, 119,
- 120, 89, 90, 91, 92, 93, 94, 95,
- 96, 97, 66, 67, 68, 69, 70, 71,
- 72, 73, 106, 107, 108, 109, 110, 111,
- 128, 81, 82, 83, 84, 85, 86, 87,
- 88, 121, 122, 123, 124, 125, 126, 127,
- 112, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
- 'H', 'I', 138, 139, 172, 186, 174, 143,
- 144, 'J', 'K', 'L', 'M', 'N', 'O', 'P',
- 'Q', 'R', 154, 155, 158, 157, 156, 159,
- 160, 161, 'S', 'T', 'U', 'V', 'W', 'X',
- 'Y', 'Z', 170, 171, 140, 173, 142, 175,
- 176, 177, 178, 179, 180, 181, 182, 183,
- 184, 185, 141, 187, 188, 189, 190, 191,
- 192, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
- 'h', 'i', 202, 235, 236, 237, 238, 239,
- 208, 'j', 'k', 'l', 'm', 'n', 'o', 'p',
- 'q', 'r', 218, 251, 252, 253, 254, 223,
- 224, 225, 's', 't', 'u', 'v', 'w', 'x',
- 'y', 'z', 234, 203, 204, 205, 206, 207,
- 240, 241, 242, 243, 244, 245, 246, 247,
- 248, 249, 250, 219, 220, 221, 222, 255
-};
-#endif /* 1047 */
-
-#if '^' == 106 /* if defined(_OSD_POSIX) POSIX-BC */
-EXTCONST unsigned char PL_a2e[] = { /* ASCII (ISO8859-1) to EBCDIC (POSIX-BC) */
- 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F, 0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26, 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D, 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
- 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
- 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
- 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xBB, 0xBC, 0xBD, 0x6A, 0x6D,
- 0x4A, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
- 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xFB, 0x4F, 0xFD, 0xFF, 0x07,
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x06, 0x17, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x09, 0x0A, 0x1B,
- 0x30, 0x31, 0x1A, 0x33, 0x34, 0x35, 0x36, 0x08, 0x38, 0x39, 0x3A, 0x3B, 0x04, 0x14, 0x3E, 0x5F,
- 0x41, 0xAA, 0xB0, 0xB1, 0x9F, 0xB2, 0xD0, 0xB5, 0x79, 0xB4, 0x9A, 0x8A, 0xBA, 0xCA, 0xAF, 0xA1,
- 0x90, 0x8F, 0xEA, 0xFA, 0xBE, 0xA0, 0xB6, 0xB3, 0x9D, 0xDA, 0x9B, 0x8B, 0xB7, 0xB8, 0xB9, 0xAB,
- 0x64, 0x65, 0x62, 0x66, 0x63, 0x67, 0x9E, 0x68, 0x74, 0x71, 0x72, 0x73, 0x78, 0x75, 0x76, 0x77,
- 0xAC, 0x69, 0xED, 0xEE, 0xEB, 0xEF, 0xEC, 0xBF, 0x80, 0xE0, 0xFE, 0xDD, 0xFC, 0xAD, 0xAE, 0x59,
- 0x44, 0x45, 0x42, 0x46, 0x43, 0x47, 0x9C, 0x48, 0x54, 0x51, 0x52, 0x53, 0x58, 0x55, 0x56, 0x57,
- 0x8C, 0x49, 0xCD, 0xCE, 0xCB, 0xCF, 0xCC, 0xE1, 0x70, 0xC0, 0xDE, 0xDB, 0xDC, 0x8D, 0x8E, 0xDF
-};
-
-EXTCONST unsigned char PL_e2a[] = { /* EBCDIC (POSIX-BC) to ASCII (ISO8859-1) */
- 0x00, 0x01, 0x02, 0x03, 0x9C, 0x09, 0x86, 0x7F, 0x97, 0x8D, 0x8E, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x9D, 0x0A, 0x08, 0x87, 0x18, 0x19, 0x92, 0x8F, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x17, 0x1B, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x05, 0x06, 0x07,
- 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, 0x98, 0x99, 0x9A, 0x9B, 0x14, 0x15, 0x9E, 0x1A,
- 0x20, 0xA0, 0xE2, 0xE4, 0xE0, 0xE1, 0xE3, 0xE5, 0xE7, 0xF1, 0x60, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
- 0x26, 0xE9, 0xEA, 0xEB, 0xE8, 0xED, 0xEE, 0xEF, 0xEC, 0xDF, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x9F,
- 0x2D, 0x2F, 0xC2, 0xC4, 0xC0, 0xC1, 0xC3, 0xC5, 0xC7, 0xD1, 0x5E, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
- 0xF8, 0xC9, 0xCA, 0xCB, 0xC8, 0xCD, 0xCE, 0xCF, 0xCC, 0xA8, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
- 0xD8, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0xAB, 0xBB, 0xF0, 0xFD, 0xFE, 0xB1,
- 0xB0, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0xAA, 0xBA, 0xE6, 0xB8, 0xC6, 0xA4,
- 0xB5, 0xAF, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0xA1, 0xBF, 0xD0, 0xDD, 0xDE, 0xAE,
- 0xA2, 0xA3, 0xA5, 0xB7, 0xA9, 0xA7, 0xB6, 0xBC, 0xBD, 0xBE, 0xAC, 0x5B, 0x5C, 0x5D, 0xB4, 0xD7,
- 0xF9, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0xAD, 0xF4, 0xF6, 0xF2, 0xF3, 0xF5,
- 0xA6, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0xB9, 0xFB, 0xFC, 0xDB, 0xFA, 0xFF,
- 0xD9, 0xF7, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0xB2, 0xD4, 0xD6, 0xD2, 0xD3, 0xD5,
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0xB3, 0x7B, 0xDC, 0x7D, 0xDA, 0x7E
-};
-
-EXTCONST unsigned char PL_fold[] = { /* fast EBCDIC case folding table, 'A' =>
- 'a'; 'a' => 'A' */
- 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, 65, 98, 99, 100, 101, 102, 103,
- 104, 105, 74, 75, 76, 77, 78, 79,
- 80, 113, 114, 115, 116, 117, 118, 119,
- 120, 89, 90, 91, 92, 93, 94, 95,
- 96, 97, 66, 67, 68, 69, 70, 71,
- 72, 73, 106, 107, 108, 109, 110, 111,
- 128, 81, 82, 83, 84, 85, 86, 87,
- 88, 121, 122, 123, 124, 125, 126, 127,
- 112, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
- 'H', 'I', 138, 139, 172, 173, 174, 143,
- 144, 'J', 'K', 'L', 'M', 'N', 'O', 'P',
- 'Q', 'R', 154, 155, 158, 157, 156, 159,
- 160, 161, 'S', 'T', 'U', 'V', 'W', 'X',
- 'Y', 'Z', 170, 171, 140, 141, 142, 175,
- 176, 177, 178, 179, 180, 181, 182, 183,
- 184, 185, 186, 187, 188, 189, 190, 191,
- 224, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
- 'h', 'i', 202, 235, 236, 237, 238, 239,
- 208, 'j', 'k', 'l', 'm', 'n', 'o', 'p',
- 'q', 'r', 218, 221, 252, 219, 254, 223,
- 192, 225, 's', 't', 'u', 'v', 'w', 'x',
- 'y', 'z', 234, 203, 204, 205, 206, 207,
- 240, 241, 242, 243, 244, 245, 246, 247,
- 248, 249, 250, 251, 220, 253, 222, 255
-};
-#endif /* POSIX-BC */
-
-#if '^' == 176 /* if defined(??) (OS/400?) 037 */
-EXTCONST unsigned char PL_a2e[] = { /* ASCII (ISO8859-1) to EBCDIC (IBM-037) */
- 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F, 0x16, 0x05, 0x25, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26, 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D, 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
- 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
- 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
- 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xBA, 0xE0, 0xBB, 0xB0, 0x6D,
- 0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
- 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x15, 0x06, 0x17, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x09, 0x0A, 0x1B,
- 0x30, 0x31, 0x1A, 0x33, 0x34, 0x35, 0x36, 0x08, 0x38, 0x39, 0x3A, 0x3B, 0x04, 0x14, 0x3E, 0xFF,
- 0x41, 0xAA, 0x4A, 0xB1, 0x9F, 0xB2, 0x6A, 0xB5, 0xBD, 0xB4, 0x9A, 0x8A, 0x5F, 0xCA, 0xAF, 0xBC,
- 0x90, 0x8F, 0xEA, 0xFA, 0xBE, 0xA0, 0xB6, 0xB3, 0x9D, 0xDA, 0x9B, 0x8B, 0xB7, 0xB8, 0xB9, 0xAB,
- 0x64, 0x65, 0x62, 0x66, 0x63, 0x67, 0x9E, 0x68, 0x74, 0x71, 0x72, 0x73, 0x78, 0x75, 0x76, 0x77,
- 0xAC, 0x69, 0xED, 0xEE, 0xEB, 0xEF, 0xEC, 0xBF, 0x80, 0xFD, 0xFE, 0xFB, 0xFC, 0xAD, 0xAE, 0x59,
- 0x44, 0x45, 0x42, 0x46, 0x43, 0x47, 0x9C, 0x48, 0x54, 0x51, 0x52, 0x53, 0x58, 0x55, 0x56, 0x57,
- 0x8C, 0x49, 0xCD, 0xCE, 0xCB, 0xCF, 0xCC, 0xE1, 0x70, 0xDD, 0xDE, 0xDB, 0xDC, 0x8D, 0x8E, 0xDF
-};
-
-EXTCONST unsigned char PL_e2a[] = { /* EBCDIC (IBM-037) to ASCII (ISO8859-1) */
- 0x00, 0x01, 0x02, 0x03, 0x9C, 0x09, 0x86, 0x7F, 0x97, 0x8D, 0x8E, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- 0x10, 0x11, 0x12, 0x13, 0x9D, 0x85, 0x08, 0x87, 0x18, 0x19, 0x92, 0x8F, 0x1C, 0x1D, 0x1E, 0x1F,
- 0x80, 0x81, 0x82, 0x83, 0x84, 0x0A, 0x17, 0x1B, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x05, 0x06, 0x07,
- 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, 0x98, 0x99, 0x9A, 0x9B, 0x14, 0x15, 0x9E, 0x1A,
- 0x20, 0xA0, 0xE2, 0xE4, 0xE0, 0xE1, 0xE3, 0xE5, 0xE7, 0xF1, 0xA2, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
- 0x26, 0xE9, 0xEA, 0xEB, 0xE8, 0xED, 0xEE, 0xEF, 0xEC, 0xDF, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0xAC,
- 0x2D, 0x2F, 0xC2, 0xC4, 0xC0, 0xC1, 0xC3, 0xC5, 0xC7, 0xD1, 0xA6, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
- 0xF8, 0xC9, 0xCA, 0xCB, 0xC8, 0xCD, 0xCE, 0xCF, 0xCC, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
- 0xD8, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0xAB, 0xBB, 0xF0, 0xFD, 0xFE, 0xB1,
- 0xB0, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0xAA, 0xBA, 0xE6, 0xB8, 0xC6, 0xA4,
- 0xB5, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0xA1, 0xBF, 0xD0, 0xDD, 0xDE, 0xAE,
- 0x5E, 0xA3, 0xA5, 0xB7, 0xA9, 0xA7, 0xB6, 0xBC, 0xBD, 0xBE, 0x5B, 0x5D, 0xAF, 0xA8, 0xB4, 0xD7,
- 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0xAD, 0xF4, 0xF6, 0xF2, 0xF3, 0xF5,
- 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0xB9, 0xFB, 0xFC, 0xF9, 0xFA, 0xFF,
- 0x5C, 0xF7, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0xB2, 0xD4, 0xD6, 0xD2, 0xD3, 0xD5,
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0xB3, 0xDB, 0xDC, 0xD9, 0xDA, 0x9F
-};
-EXTCONST unsigned char PL_fold[] = { /* fast EBCDIC case folding table, 'A' =>
- 'a'; 'a' => 'A' */
- 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, 65, 98, 99, 100, 101, 102, 103,
- 104, 105, 74, 75, 76, 77, 78, 79,
- 80, 113, 114, 115, 116, 117, 118, 119,
- 120, 89, 90, 91, 92, 93, 94, 95,
- 96, 97, 66, 67, 68, 69, 70, 71,
- 72, 73, 106, 107, 108, 109, 110, 111,
- 128, 81, 82, 83, 84, 85, 86, 87,
- 88, 121, 122, 123, 124, 125, 126, 127,
- 112, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
- 'H', 'I', 138, 139, 172, 173, 174, 143,
- 144, 'J', 'K', 'L', 'M', 'N', 'O', 'P',
- 'Q', 'R', 154, 155, 158, 157, 156, 159,
- 160, 161, 'S', 'T', 'U', 'V', 'W', 'X',
- 'Y', 'Z', 170, 171, 140, 141, 142, 175,
- 176, 177, 178, 179, 180, 181, 182, 183,
- 184, 185, 186, 187, 188, 189, 190, 191,
- 192, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
- 'h', 'i', 202, 235, 236, 237, 238, 239,
- 208, 'j', 'k', 'l', 'm', 'n', 'o', 'p',
- 'q', 'r', 218, 251, 252, 253, 254, 223,
- 224, 225, 's', 't', 'u', 'v', 'w', 'x',
- 'y', 'z', 234, 203, 204, 205, 206, 207,
- 240, 241, 242, 243, 244, 245, 246, 247,
- 248, 249, 250, 219, 220, 221, 222, 255
-};
-#endif /* 037 */
+#include "ebcdic_tables.h"
#else
-EXTCONST unsigned char PL_utf8skip[];
-EXTCONST unsigned char PL_e2utf[];
-EXTCONST unsigned char PL_utf2e[];
-EXTCONST unsigned char PL_e2a[];
-EXTCONST unsigned char PL_a2e[];
-EXTCONST unsigned char PL_fold[];
+EXTCONST U8 PL_utf8skip[];
+EXTCONST U8 PL_e2utf[];
+EXTCONST U8 PL_utf2e[];
+EXTCONST U8 PL_e2a[];
+EXTCONST U8 PL_a2e[];
+EXTCONST U8 PL_fold[];
+EXTCONST U8 PL_fold_latin1[];
+EXTCONST U8 PL_latin1_lc[];
+EXTCONST U8 PL_mod_latin1_uc[];
#endif
-/* Since the EBCDIC code pages are isomorphic to Latin1, that table is merely a
- * duplicate */
-EXTCONST unsigned char * PL_fold_latin1 = PL_fold;
-
END_EXTERN_C
/* EBCDIC-happy ways of converting native code to UTF-8 */
-/* Native to iso-8859-1 */
-#define NATIVE_TO_ASCII(ch) PL_e2a[(U8)(ch)]
-#define ASCII_TO_NATIVE(ch) PL_a2e[(U8)(ch)]
-/* Transform after encoding, essentially converts to/from I8 */
-#define NATIVE_TO_UTF(ch) PL_e2utf[(U8)(ch)] /* to I8 */
-#define NATIVE_TO_I8(ch) NATIVE_TO_UTF(ch) /* synonym */
-#define UTF_TO_NATIVE(ch) PL_utf2e[(U8)(ch)] /* from I8 */
-#define I8_TO_NATIVE(ch) UTF_TO_NATIVE(ch) /* synonym */
-/* Transform in wide UV char space */
-#define NATIVE_TO_UNI(ch) (((ch) > 255) ? (ch) : NATIVE_TO_ASCII(ch))
-#define UNI_TO_NATIVE(ch) (((ch) > 255) ? (ch) : ASCII_TO_NATIVE(ch))
-/* Transform in invariant..byte space */
-#define NATIVE_TO_NEED(enc,ch) ((enc) ? UTF_TO_NATIVE(NATIVE_TO_ASCII(ch)) : (ch))
-#define ASCII_TO_NEED(enc,ch) ((enc) ? UTF_TO_NATIVE(ch) : ASCII_TO_NATIVE(ch))
+/* Use these when ch is known to be < 256 */
+#define NATIVE_TO_LATIN1(ch) (__ASSERT_(FITS_IN_8_BITS(ch)) PL_e2a[(U8)(ch)])
+#define LATIN1_TO_NATIVE(ch) (__ASSERT_(FITS_IN_8_BITS(ch)) PL_a2e[(U8)(ch)])
+
+/* Use these on bytes */
+#define NATIVE_UTF8_TO_I8(b) (__ASSERT_(FITS_IN_8_BITS(b)) PL_e2utf[(U8)(b)])
+#define I8_TO_NATIVE_UTF8(b) (__ASSERT_(FITS_IN_8_BITS(b)) PL_utf2e[(U8)(b)])
+
+/* Transforms in wide UV chars */
+#define NATIVE_TO_UNI(ch) (FITS_IN_8_BITS(ch) ? NATIVE_TO_LATIN1(ch) : (UV) (ch))
+#define UNI_TO_NATIVE(ch) (FITS_IN_8_BITS(ch) ? LATIN1_TO_NATIVE(ch) : (UV) (ch))
+
+/* How wide can a single UTF-8 encoded character become in bytes. */
+/* NOTE: Strictly speaking Perl's UTF-8 should not be called UTF-8 since UTF-8
+ * is an encoding of Unicode, and Unicode's upper limit, 0x10FFFF, can be
+ * expressed with 5 bytes. However, Perl thinks of UTF-8 as a way to encode
+ * non-negative integers in a binary format, even those above Unicode. 14 is
+ * the smallest number that covers 2**64
+ *
+ * WARNING: This number must be in sync with the value in
+ * regen/charset_translations.pl. */
+#define UTF8_MAXBYTES 14
/*
- The following table is adapted from tr16, it shows I8 encoding of Unicode code points.
+ The following table is adapted from tr16, it shows the I8 encoding of Unicode code points.
- Unicode Bit pattern 1st Byte 2nd Byte 3rd Byte 4th Byte 5th Byte 6th Byte 7th byte
+ Unicode U32 Bit pattern 1st Byte 2nd Byte 3rd Byte 4th Byte 5th Byte 6th Byte 7th Byte
U+0000..U+007F 000000000xxxxxxx 0xxxxxxx
U+0080..U+009F 00000000100xxxxx 100xxxxx
- U+00A0..U+00FF 00000000yyyxxxxx 11000yyy 101xxxxx
-
U+00A0..U+03FF 000000yyyyyxxxxx 110yyyyy 101xxxxx
U+0400..U+3FFF 00zzzzyyyyyxxxxx 1110zzzz 101yyyyy 101xxxxx
U+4000..U+3FFFF 0wwwzzzzzyyyyyxxxxx 11110www 101zzzzz 101yyyyy 101xxxxx
U+40000..U+3FFFFF 0vvwwwwwzzzzzyyyyyxxxxx 111110vv 101wwwww 101zzzzz 101yyyyy 101xxxxx
U+400000..U+3FFFFFF 0uvvvvvwwwwwzzzzzyyyyyxxxxx 1111110u 101vvvvv 101wwwww 101zzzzz 101yyyyy 101xxxxx
- U+4000000..U+7FFFFFFF 0tuuuuuvvvvvwwwwwzzzzzyyyyyxxxxx 1111111t 101uuuuu 101vvvvv 101wwwww 101zzzzz 101yyyyy 101xxxxx
+ U+4000000..U+3FFFFFFF 00uuuuuvvvvvwwwwwzzzzzyyyyyxxxxx 11111110 101uuuuu 101vvvvv 101wwwww 101zzzzz 101yyyyy 101xxxxx
+
+Beyond this, Perl uses an incompatible extension, similar to the one used in
+regular UTF-8. There are now 14 bytes. A full 32 bits of information thus looks like this:
+ 1st Byte 2nd-7th 8th Byte 9th Byte 10th B 11th B 12th B 13th B 14th B
+U+40000000..U+FFFFFFFF ttuuuuuvvvvvwwwwwzzzzzyyyyyxxxxx 11111111 10100000 101000tt 101uuuuu 101vvvvv 101wwwww 101zzzzz 101yyyyy 101xxxxx
+
+For 32-bit words, the 2nd through 7th bytes effectively function as leading
+zeros. Above 32 bits, these fill up, with each byte yielding 5 bits of
+information, so that with 13 continuation bytes, we can handle 65 bits, just
+above what a 64 bit word can hold */
- Note: The I8 transformation is valid for UCS-4 values X'0' to
- X'7FFFFFFF' (the full extent of ISO/IEC 10646 coding space).
+/* This is a fundamental property of UTF-EBCDIC */
+#define OFFUNI_IS_INVARIANT(c) (((UV)(c)) < 0xA0)
+
+/* It turns out that on EBCDIC platforms, the invariants are the characters
+ * that have ASCII equivalents, plus the C1 controls. Since the C0 controls
+ * and DELETE are ASCII, this is the same as: (isASCII(uv) || isCNTRL_L1(uv))
+ * */
+#define UVCHR_IS_INVARIANT(uv) cBOOL(FITS_IN_8_BITS(uv) \
+ && (PL_charclass[(U8) (uv)] & (_CC_mask(_CC_ASCII) | _CC_mask(_CC_CNTRL))))
+
+/* UTF-EBCDIC semantic macros - We used to transform back into I8 and then
+ * compare, but now only have to do a single lookup by using a bit in
+ * l1_char_class_tab.h.
+ * Comments as to the meaning of each are given at their corresponding utf8.h
+ * definitions. */
+
+#define UTF8_IS_START(c) _generic_isCC(c, _CC_UTF8_IS_START)
+
+#define UTF_IS_CONTINUATION_MASK 0xE0
+
+#define UTF8_IS_CONTINUATION(c) _generic_isCC(c, _CC_UTF8_IS_CONTINUATION)
+
+/* The above instead could be written as this:
+#define UTF8_IS_CONTINUATION(c) \
+ (((NATIVE_UTF8_TO_I8(c) & UTF_IS_CONTINUATION_MASK) \
+ == UTF_CONTINUATION_MARK)
*/
-#define UNISKIP(uv) ( (uv) < 0xA0 ? 1 : \
- (uv) < 0x400 ? 2 : \
- (uv) < 0x4000 ? 3 : \
- (uv) < 0x40000 ? 4 : \
- (uv) < 0x400000 ? 5 : \
- (uv) < 0x4000000 ? 6 : 7 )
+/* Equivalent to ! UVCHR_IS_INVARIANT(c) */
+#define UTF8_IS_CONTINUED(c) cBOOL(FITS_IN_8_BITS(c) \
+ && ! (PL_charclass[(U8) (c)] & (_CC_mask(_CC_ASCII) | _CC_mask(_CC_CNTRL))))
+#define UTF8_IS_DOWNGRADEABLE_START(c) _generic_isCC(c, \
+ _CC_UTF8_IS_DOWNGRADEABLE_START)
-#define UNI_IS_INVARIANT(c) ((c) < 0xA0)
-/* UTF-EBCDIC semantic macros - transform back into I8 and then compare */
+/* Equivalent to (UTF8_IS_START(c) && ! UTF8_IS_DOWNGRADEABLE_START(c))
+ * Makes sure that the START bit is set and the DOWNGRADEABLE bit isn't */
+#define UTF8_IS_ABOVE_LATIN1(c) cBOOL(FITS_IN_8_BITS(c) \
+ && ((PL_charclass[(U8) (c)] & ( _CC_mask(_CC_UTF8_IS_START) \
+ |_CC_mask(_CC_UTF8_IS_DOWNGRADEABLE_START))) \
+ == _CC_mask(_CC_UTF8_IS_START)))
-#define UTF8_IS_START(c) (NATIVE_TO_UTF(c) >= 0xC5 && NATIVE_TO_UTF(c) != 0xE0)
-#define UTF8_IS_CONTINUATION(c) ((NATIVE_TO_UTF(c) & 0xE0) == 0xA0)
-#define UTF8_IS_CONTINUED(c) (NATIVE_TO_UTF(c) >= 0xA0)
-#define UTF8_IS_DOWNGRADEABLE_START(c) (NATIVE_TO_UTF(c) >= 0xC5 && NATIVE_TO_UTF(c) <= 0xC7)
-#define UTF8_IS_ABOVE_LATIN1(c) (NATIVE_TO_I8(c) >= 0xC8)
+#define isUTF8_POSSIBLY_PROBLEMATIC(c) \
+ _generic_isCC(c, _CC_UTF8_START_BYTE_IS_FOR_AT_LEAST_SURROGATE)
-#define UTF_START_MARK(len) (((len) > 7) ? 0xFF : ((U8)(0xFE << (7-(len)))))
-#define UTF_START_MASK(len) (((len) >= 6) ? 0x01 : (0x1F >> ((len)-2)))
#define UTF_CONTINUATION_MARK 0xA0
-#define UTF_CONTINUATION_MASK ((U8)0x1f)
#define UTF_ACCUMULATION_SHIFT 5
-/* How wide can a single UTF-8 encoded character become in bytes. */
-/* NOTE: Strictly speaking Perl's UTF-8 should not be called UTF-8 since UTF-8
- * is an encoding of Unicode, and Unicode's upper limit, 0x10FFFF, can be
- * expressed with 5 bytes. However, Perl thinks of UTF-8 as a way to encode
- * non-negative integers in a binary format, even those above Unicode */
-#define UTF8_MAXBYTES 7
-
-/* The maximum number of UTF-8 bytes a single Unicode character can
- * uppercase/lowercase/fold into. Unicode guarantees that the maximum
- * expansion is 3 characters. On EBCDIC platforms, the highest Unicode
- * character occupies 5 bytes, therefore this number is 15 */
-#define UTF8_MAXBYTES_CASE 15
+/* ^? is defined to be APC on EBCDIC systems. See the definition of toCTRL()
+ * for more */
+#define QUESTION_MARK_CTRL LATIN1_TO_NATIVE(0x9F)
/*
- * Local variables:
- * c-indentation-style: bsd
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- *
* ex: set ts=8 sts=4 sw=4 et:
*/
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