/* Generate Unicode conforming character classification tables and
line break properties tables and word break property tables and
- case mapping tables from a UnicodeData file.
+ decomposition/composition and case mapping tables from a UnicodeData file.
Copyright (C) 2000-2002, 2004, 2007-2009 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2000-2002.
/usr/local/share/Unidata/EastAsianWidth.txt \
/usr/local/share/Unidata/LineBreak.txt \
/usr/local/share/Unidata/WordBreakProperty.txt \
+ /usr/local/share/Unidata/CompositionExclusions.txt \
5.1.0
*/
/* ========================================================================= */
+/* Maximum number of characters into which a single Unicode character can be
+ decomposed. */
+#define MAX_DECOMP_LENGTH 18
+
+enum
+{
+ UC_DECOMP_CANONICAL,/* Canonical decomposition. */
+ UC_DECOMP_FONT, /* <font> A font variant (e.g. a blackletter form). */
+ UC_DECOMP_NOBREAK, /* <noBreak> A no-break version of a space or hyphen. */
+ UC_DECOMP_INITIAL, /* <initial> An initial presentation form (Arabic). */
+ UC_DECOMP_MEDIAL, /* <medial> A medial presentation form (Arabic). */
+ UC_DECOMP_FINAL, /* <final> A final presentation form (Arabic). */
+ UC_DECOMP_ISOLATED,/* <isolated> An isolated presentation form (Arabic). */
+ UC_DECOMP_CIRCLE, /* <circle> An encircled form. */
+ UC_DECOMP_SUPER, /* <super> A superscript form. */
+ UC_DECOMP_SUB, /* <sub> A subscript form. */
+ UC_DECOMP_VERTICAL,/* <vertical> A vertical layout presentation form. */
+ UC_DECOMP_WIDE, /* <wide> A wide (or zenkaku) compatibility character. */
+ UC_DECOMP_NARROW, /* <narrow> A narrow (or hankaku) compatibility character. */
+ UC_DECOMP_SMALL, /* <small> A small variant form (CNS compatibility). */
+ UC_DECOMP_SQUARE, /* <square> A CJK squared font variant. */
+ UC_DECOMP_FRACTION,/* <fraction> A vulgar fraction form. */
+ UC_DECOMP_COMPAT /* <compat> Otherwise unspecified compatibility character. */
+};
+
+/* Return the decomposition for a Unicode character (ignoring Hangul Jamo
+ decompositions). Return the type, or -1 for none. */
+static int
+get_decomposition (unsigned int ch,
+ unsigned int *lengthp, unsigned int decomposed[MAX_DECOMP_LENGTH])
+{
+ const char *decomposition = unicode_attributes[ch].decomposition;
+
+ if (decomposition != NULL && decomposition[0] != '\0')
+ {
+ int type = UC_DECOMP_CANONICAL;
+ unsigned int length;
+ char *endptr;
+
+ if (decomposition[0] == '<')
+ {
+ const char *rangle;
+ size_t typelen;
+
+ rangle = strchr (decomposition + 1, '>');
+ if (rangle == NULL)
+ abort ();
+ typelen = rangle + 1 - decomposition;
+#define TYPE(t1,t2) \
+ if (typelen == (sizeof (t1) - 1) && memcmp (decomposition, t1, typelen) == 0) \
+ type = t2; \
+ else
+ TYPE ("<font>", UC_DECOMP_FONT)
+ TYPE ("<noBreak>", UC_DECOMP_NOBREAK)
+ TYPE ("<initial>", UC_DECOMP_INITIAL)
+ TYPE ("<medial>", UC_DECOMP_MEDIAL)
+ TYPE ("<final>", UC_DECOMP_FINAL)
+ TYPE ("<isolated>", UC_DECOMP_ISOLATED)
+ TYPE ("<circle>", UC_DECOMP_CIRCLE)
+ TYPE ("<super>", UC_DECOMP_SUPER)
+ TYPE ("<sub>", UC_DECOMP_SUB)
+ TYPE ("<vertical>", UC_DECOMP_VERTICAL)
+ TYPE ("<wide>", UC_DECOMP_WIDE)
+ TYPE ("<narrow>", UC_DECOMP_NARROW)
+ TYPE ("<small>", UC_DECOMP_SMALL)
+ TYPE ("<square>", UC_DECOMP_SQUARE)
+ TYPE ("<fraction>", UC_DECOMP_FRACTION)
+ TYPE ("<compat>", UC_DECOMP_COMPAT)
+ {
+ fprintf (stderr, "unknown decomposition type %*s\n", (int)typelen, decomposition);
+ exit (1);
+ }
+#undef TYPE
+ decomposition = rangle + 1;
+ if (decomposition[0] == ' ')
+ decomposition++;
+ }
+ for (length = 0; length < MAX_DECOMP_LENGTH; length++)
+ {
+ decomposed[length] = strtoul (decomposition, &endptr, 16);
+ if (endptr == decomposition)
+ break;
+ decomposition = endptr;
+ if (decomposition[0] == ' ')
+ decomposition++;
+ }
+ if (*decomposition != '\0')
+ /* MAX_DECOMP_LENGTH is too small. */
+ abort ();
+
+ *lengthp = length;
+ return type;
+ }
+ else
+ return -1;
+}
+
+/* Construction of sparse 3-level tables. */
+#define TABLE decomp_table
+#define ELEMENT uint16_t
+#define DEFAULT (uint16_t)(-1)
+#define xmalloc malloc
+#define xrealloc realloc
+#include "3level.h"
+
+static void
+output_decomposition (FILE *stream1, FILE *stream2)
+{
+ struct decomp_table t;
+ unsigned int level1_offset, level2_offset, level3_offset;
+ unsigned int offset;
+ unsigned int ch;
+ unsigned int i;
+
+ t.p = 5;
+ t.q = 5;
+ decomp_table_init (&t);
+
+ fprintf (stream1, "extern const unsigned char gl_uninorm_decomp_chars_table[];\n");
+ fprintf (stream1, "\n");
+ fprintf (stream2, "const unsigned char gl_uninorm_decomp_chars_table[] =\n{");
+ offset = 0;
+
+ for (ch = 0; ch < 0x110000; ch++)
+ {
+ unsigned int length;
+ unsigned int decomposed[MAX_DECOMP_LENGTH];
+ int type = get_decomposition (ch, &length, decomposed);
+
+ if (type >= 0)
+ {
+ if (!(offset < (1 << 15)))
+ abort ();
+ decomp_table_add (&t, ch, ((type == UC_DECOMP_CANONICAL ? 0 : 1) << 15) | offset);
+
+ /* Produce length 3-bytes entries. */
+ if (length == 0)
+ /* We would need a special representation of zero-length entries. */
+ abort ();
+ for (i = 0; i < length; i++)
+ {
+ if (offset > 0)
+ fprintf (stream2, ",");
+ if ((offset % 4) == 0)
+ fprintf (stream2, "\n ");
+ if (!(decomposed[i] < (1 << 18)))
+ abort ();
+ fprintf (stream2, " 0x%02X, 0x%02X, 0x%02X",
+ (((i+1 < length ? (1 << 23) : 0)
+ | (i == 0 ? (type << 18) : 0)
+ | decomposed[i]) >> 16) & 0xff,
+ (decomposed[i] >> 8) & 0xff,
+ decomposed[i] & 0xff);
+ offset++;
+ }
+ }
+ }
+
+ fprintf (stream2, "\n};\n");
+ fprintf (stream2, "\n");
+
+ decomp_table_finalize (&t);
+
+ level1_offset =
+ 5 * sizeof (uint32_t);
+ level2_offset =
+ 5 * sizeof (uint32_t)
+ + t.level1_size * sizeof (uint32_t);
+ level3_offset =
+ 5 * sizeof (uint32_t)
+ + t.level1_size * sizeof (uint32_t)
+ + (t.level2_size << t.q) * sizeof (uint32_t);
+
+ for (i = 0; i < 5; i++)
+ fprintf (stream1, "#define decomp_header_%d %d\n", i,
+ ((uint32_t *) t.result)[i]);
+ fprintf (stream1, "\n");
+ fprintf (stream1, "typedef struct\n");
+ fprintf (stream1, " {\n");
+ fprintf (stream1, " int level1[%zu];\n", t.level1_size);
+ fprintf (stream1, " int level2[%zu << %d];\n", t.level2_size, t.q);
+ fprintf (stream1, " unsigned short level3[%zu << %d];\n", t.level3_size, t.p);
+ fprintf (stream1, " }\n");
+ fprintf (stream1, "decomp_index_table_t;\n");
+ fprintf (stream1, "extern const decomp_index_table_t gl_uninorm_decomp_index_table;\n");
+ fprintf (stream2, "const decomp_index_table_t gl_uninorm_decomp_index_table =\n");
+ fprintf (stream2, "{\n");
+ fprintf (stream2, " {");
+ if (t.level1_size > 8)
+ fprintf (stream2, "\n ");
+ for (i = 0; i < t.level1_size; i++)
+ {
+ uint32_t offset;
+ if (i > 0 && (i % 8) == 0)
+ fprintf (stream2, "\n ");
+ offset = ((uint32_t *) (t.result + level1_offset))[i];
+ if (offset == 0)
+ fprintf (stream2, " %5d", -1);
+ else
+ fprintf (stream2, " %5zu",
+ (offset - level2_offset) / sizeof (uint32_t));
+ if (i+1 < t.level1_size)
+ fprintf (stream2, ",");
+ }
+ if (t.level1_size > 8)
+ fprintf (stream2, "\n ");
+ fprintf (stream2, " },\n");
+ fprintf (stream2, " {");
+ if (t.level2_size << t.q > 8)
+ fprintf (stream2, "\n ");
+ for (i = 0; i < t.level2_size << t.q; i++)
+ {
+ uint32_t offset;
+ if (i > 0 && (i % 8) == 0)
+ fprintf (stream2, "\n ");
+ offset = ((uint32_t *) (t.result + level2_offset))[i];
+ if (offset == 0)
+ fprintf (stream2, " %5d", -1);
+ else
+ fprintf (stream2, " %5zu",
+ (offset - level3_offset) / sizeof (uint16_t));
+ if (i+1 < t.level2_size << t.q)
+ fprintf (stream2, ",");
+ }
+ if (t.level2_size << t.q > 8)
+ fprintf (stream2, "\n ");
+ fprintf (stream2, " },\n");
+ fprintf (stream2, " {");
+ if (t.level3_size << t.p > 8)
+ fprintf (stream2, "\n ");
+ for (i = 0; i < t.level3_size << t.p; i++)
+ {
+ uint16_t value = ((uint16_t *) (t.result + level3_offset))[i];
+ if (i > 0 && (i % 8) == 0)
+ fprintf (stream2, "\n ");
+ fprintf (stream2, " %5d", value == (uint16_t)(-1) ? -1 : value);
+ if (i+1 < t.level3_size << t.p)
+ fprintf (stream2, ",");
+ }
+ if (t.level3_size << t.p > 8)
+ fprintf (stream2, "\n ");
+ fprintf (stream2, " }\n");
+ fprintf (stream2, "};\n");
+}
+
+static void
+output_decomposition_tables (const char *filename1, const char *filename2, const char *version)
+{
+ const char *filenames[2];
+ FILE *streams[2];
+ size_t i;
+
+ filenames[0] = filename1;
+ filenames[1] = filename2;
+
+ for (i = 0; i < 2; i++)
+ {
+ streams[i] = fopen (filenames[i], "w");
+ if (streams[i] == NULL)
+ {
+ fprintf (stderr, "cannot open '%s' for writing\n", filenames[i]);
+ exit (1);
+ }
+ }
+
+ for (i = 0; i < 2; i++)
+ {
+ FILE *stream = streams[i];
+
+ fprintf (stream, "/* DO NOT EDIT! GENERATED AUTOMATICALLY! */\n");
+ fprintf (stream, "/* Decomposition of Unicode characters. */\n");
+ fprintf (stream, "/* Generated automatically by gen-uni-tables.c for Unicode %s. */\n",
+ version);
+ fprintf (stream, "\n");
+ }
+
+ output_decomposition (streams[0], streams[1]);
+
+ for (i = 0; i < 2; i++)
+ {
+ if (ferror (streams[i]) || fclose (streams[i]))
+ {
+ fprintf (stderr, "error writing to '%s'\n", filenames[i]);
+ exit (1);
+ }
+ }
+}
+
+/* The "excluded from composition" property from the CompositionExclusions.txt file. */
+char unicode_composition_exclusions[0x110000];
+
+static void
+fill_composition_exclusions (const char *compositionexclusions_filename)
+{
+ FILE *stream;
+ unsigned int i;
+
+ stream = fopen (compositionexclusions_filename, "r");
+ if (stream == NULL)
+ {
+ fprintf (stderr, "error during fopen of '%s'\n", compositionexclusions_filename);
+ exit (1);
+ }
+
+ for (i = 0; i < 0x110000; i++)
+ unicode_composition_exclusions[i] = 0;
+
+ for (;;)
+ {
+ char buf[200+1];
+ unsigned int i;
+
+ if (fscanf (stream, "%200[^\n]\n", buf) < 1)
+ break;
+
+ if (buf[0] == '\0' || buf[0] == '#')
+ continue;
+
+ if (sscanf (buf, "%X", &i) != 1)
+ {
+ fprintf (stderr, "parse error in '%s'\n", compositionexclusions_filename);
+ exit (1);
+ }
+ if (!(i < 0x110000))
+ abort ();
+
+ unicode_composition_exclusions[i] = 1;
+ }
+
+ if (ferror (stream) || fclose (stream))
+ {
+ fprintf (stderr, "error reading from '%s'\n", compositionexclusions_filename);
+ exit (1);
+ }
+}
+
+static void
+debug_output_composition_tables (const char *filename)
+{
+ FILE *stream;
+ unsigned int ch;
+
+ stream = fopen (filename, "w");
+ if (stream == NULL)
+ {
+ fprintf (stderr, "cannot open '%s' for writing\n", filename);
+ exit (1);
+ }
+
+ for (ch = 0; ch < 0x110000; ch++)
+ {
+ unsigned int length;
+ unsigned int decomposed[MAX_DECOMP_LENGTH];
+ int type = get_decomposition (ch, &length, decomposed);
+
+ if (type == UC_DECOMP_CANONICAL
+ /* Consider only binary decompositions.
+ Exclude singleton decompositions. */
+ && length == 2)
+ {
+ unsigned int code1 = decomposed[0];
+ unsigned int code2 = decomposed[1];
+ unsigned int combined = ch;
+
+ /* Exclude decompositions where the first part is not a starter,
+ i.e. is not of canonical combining class 0. */
+ if (strcmp (unicode_attributes[code1].combining, "0") == 0
+ /* Exclude characters listed in CompositionExclusions.txt. */
+ && !unicode_composition_exclusions[combined])
+ {
+ /* The combined character must now also be a starter.
+ Verify this. */
+ if (strcmp (unicode_attributes[combined].combining, "0") != 0)
+ abort ();
+
+ fprintf (stream, "0x%04X\t0x%04X\t0x%04X\t%s\n",
+ code1,
+ code2,
+ combined,
+ unicode_attributes[code2].combining);
+ }
+ }
+ }
+
+ if (ferror (stream) || fclose (stream))
+ {
+ fprintf (stderr, "error writing to '%s'\n", filename);
+ exit (1);
+ }
+}
+
+#if 0
+/* Construction of sparse 3-level tables. */
+#define TABLE composition_table
+#define ELEMENT uint32_t
+#define DEFAULT 0
+#define xmalloc malloc
+#define xrealloc realloc
+#include "3level.h"
+#endif
+
+static void
+output_composition_tables (const char *filename, const char *version)
+{
+ FILE *stream;
+ unsigned int ch;
+#if 0
+ unsigned int mul1, mul2;
+ unsigned int i;
+ struct composition_table t;
+ unsigned int level1_offset, level2_offset, level3_offset;
+#endif
+
+ stream = fopen (filename, "w");
+ if (stream == NULL)
+ {
+ fprintf (stderr, "cannot open '%s' for writing\n", filename);
+ exit (1);
+ }
+
+ fprintf (stream, "/* DO NOT EDIT! GENERATED AUTOMATICALLY! */\n");
+ fprintf (stream, "/* Canonical composition of Unicode characters. */\n");
+ fprintf (stream, "/* Generated automatically by gen-uni-tables for Unicode %s. */\n",
+ version);
+ fprintf (stream, "\n");
+
+ /* Put a GPL header on it. The gnulib module is under LGPL (although it
+ still carries the GPL header), and it's gnulib-tool which replaces the
+ GPL header with an LGPL header. */
+ fprintf (stream, "/* Copyright (C) 2009 Free Software Foundation, Inc.\n");
+ fprintf (stream, "\n");
+ fprintf (stream, " This program is free software: you can redistribute it and/or modify\n");
+ fprintf (stream, " it under the terms of the GNU General Public License as published by\n");
+ fprintf (stream, " the Free Software Foundation; either version 3 of the License, or\n");
+ fprintf (stream, " (at your option) any later version.\n");
+ fprintf (stream, "\n");
+ fprintf (stream, " This program is distributed in the hope that it will be useful,\n");
+ fprintf (stream, " but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
+ fprintf (stream, " MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n");
+ fprintf (stream, " GNU General Public License for more details.\n");
+ fprintf (stream, "\n");
+ fprintf (stream, " You should have received a copy of the GNU General Public License\n");
+ fprintf (stream, " along with this program. If not, see <http://www.gnu.org/licenses/>. */\n");
+ fprintf (stream, "\n");
+
+ /* The composition table is a set of mappings (code1, code2) -> combined,
+ with 928 entries,
+ 367 values for code1 (from 0x003C to 0x30FD),
+ 54 values for code2 (from 0x0300 to 0x309A).
+ For a fixed code1, there are from 1 to 19 possible values for code2.
+ For a fixed code2, there are from 1 to 117 possible values for code1.
+ This is a very sparse matrix.
+
+ We want an O(1) hash lookup. */
+
+#if 0 /* This approach leads to a table of size 37 KB. */
+
+ /* We implement the hash lookup by mapping (code1, code2) to a linear
+ combination mul1*code1 + mul2*code2, which is then used as an index into
+ a 3-level table. */
+
+ /* Find adequate (mul1, mul2) parameters.
+ The parameters that are found are 17 and 33, which are small enough that
+ the computations can be performed in 'unsigned int' values without
+ risking an overflow. */
+ mul1 = mul2 = 1;
+ for (;;)
+ {
+ unsigned int bound = (mul1 + mul2) * 0x110000;
+ unsigned char *bitmap = (unsigned char *) calloc (bound / 8 + 1, 1);
+ bool collision = false;
+
+ /*printf ("trying mul1=%u mul2=%u\n", mul1, mul2);*/
+
+ for (ch = 0; ch < 0x110000; ch++)
+ {
+ unsigned int length;
+ unsigned int decomposed[MAX_DECOMP_LENGTH];
+ int type = get_decomposition (ch, &length, decomposed);
+
+ if (type == UC_DECOMP_CANONICAL
+ /* Consider only binary decompositions.
+ Exclude singleton decompositions. */
+ && length == 2)
+ {
+ unsigned int code1 = decomposed[0];
+ unsigned int code2 = decomposed[1];
+ unsigned int combined = ch;
+
+ /* Exclude decompositions where the first part is not a starter,
+ i.e. is not of canonical combining class 0. */
+ if (strcmp (unicode_attributes[code1].combining, "0") == 0
+ /* Exclude characters listed in CompositionExclusions.txt. */
+ && !unicode_composition_exclusions[combined])
+ {
+ unsigned int lc = mul1 * code1 + mul2 * code2;
+
+ if (bitmap[lc / 8] & (1 << (lc % 8)))
+ {
+ /* Collision. */
+ collision = true;
+ break;
+ }
+ bitmap[lc / 8] |= 1 << (lc % 8);
+ }
+ }
+ }
+
+ free (bitmap);
+
+ if (!collision)
+ break;
+
+ /* Try other (mul1, mul2) parameters. */
+ mul1++; mul2--;
+ if (mul2 == 0)
+ {
+ /* Increment mul1 + mul2. */
+ mul2 = mul1;
+ mul1 = 1;
+ }
+ }
+
+ fprintf (stream, "#define MUL1 %u\n", mul1);
+ fprintf (stream, "#define MUL2 %u\n", mul2);
+
+ /* Because the (code1, code2) -> mul1*code1 + mul2*code2 mapping is not
+ injective, we need to store also code1 or code2 in the hash table entry.
+ Let's choose code2, randomly. */
+
+ t.p = 2;
+ t.q = 7;
+ composition_table_init (&t);
+
+ for (ch = 0; ch < 0x110000; ch++)
+ {
+ unsigned int length;
+ unsigned int decomposed[MAX_DECOMP_LENGTH];
+ int type = get_decomposition (ch, &length, decomposed);
+
+ if (type == UC_DECOMP_CANONICAL
+ /* Consider only binary decompositions.
+ Exclude singleton decompositions. */
+ && length == 2)
+ {
+ unsigned int code1 = decomposed[0];
+ unsigned int code2 = decomposed[1];
+ unsigned int combined = ch;
+
+ /* Exclude decompositions where the first part is not a starter,
+ i.e. is not of canonical combining class 0. */
+ if (strcmp (unicode_attributes[code1].combining, "0") == 0
+ /* Exclude characters listed in CompositionExclusions.txt. */
+ && !unicode_composition_exclusions[combined])
+ {
+ /* The combined character must now also be a starter.
+ Verify this. */
+ if (strcmp (unicode_attributes[combined].combining, "0") != 0)
+ abort ();
+
+ if (!(code2 < 0x10000))
+ abort ();
+ if (!(combined < 0x10000))
+ abort ();
+
+ composition_table_add (&t, mul1 * code1 + mul2 * code2, (code2 << 16) | combined);
+ }
+ }
+ }
+
+ composition_table_finalize (&t);
+
+ /* Offsets in t.result, in memory of this process. */
+ level1_offset =
+ 5 * sizeof (uint32_t);
+ level2_offset =
+ 5 * sizeof (uint32_t)
+ + t.level1_size * sizeof (uint32_t);
+ level3_offset =
+ 5 * sizeof (uint32_t)
+ + t.level1_size * sizeof (uint32_t)
+ + (t.level2_size << t.q) * sizeof (uint32_t);
+
+ for (i = 0; i < 5; i++)
+ fprintf (stream, "#define composition_header_%d %d\n", i,
+ ((uint32_t *) t.result)[i]);
+ fprintf (stream, "static const\n");
+ fprintf (stream, "struct\n");
+ fprintf (stream, " {\n");
+ fprintf (stream, " int level1[%zu];\n", t.level1_size);
+ fprintf (stream, " short level2[%zu << %d];\n", t.level2_size, t.q);
+ fprintf (stream, " unsigned int level3[%zu << %d];\n", t.level3_size, t.p);
+ fprintf (stream, " }\n");
+ fprintf (stream, "u_composition =\n");
+ fprintf (stream, "{\n");
+ fprintf (stream, " {");
+ if (t.level1_size > 8)
+ fprintf (stream, "\n ");
+ for (i = 0; i < t.level1_size; i++)
+ {
+ uint32_t offset;
+ if (i > 0 && (i % 8) == 0)
+ fprintf (stream, "\n ");
+ offset = ((uint32_t *) (t.result + level1_offset))[i];
+ if (offset == 0)
+ fprintf (stream, " %5d", -1);
+ else
+ fprintf (stream, " %5zu",
+ (offset - level2_offset) / sizeof (uint32_t));
+ if (i+1 < t.level1_size)
+ fprintf (stream, ",");
+ }
+ if (t.level1_size > 8)
+ fprintf (stream, "\n ");
+ fprintf (stream, " },\n");
+ fprintf (stream, " {");
+ if (t.level2_size << t.q > 8)
+ fprintf (stream, "\n ");
+ for (i = 0; i < t.level2_size << t.q; i++)
+ {
+ uint32_t offset;
+ if (i > 0 && (i % 8) == 0)
+ fprintf (stream, "\n ");
+ offset = ((uint32_t *) (t.result + level2_offset))[i];
+ if (offset == 0)
+ fprintf (stream, " %5d", -1);
+ else
+ fprintf (stream, " %5zu",
+ (offset - level3_offset) / sizeof (uint32_t));
+ if (i+1 < t.level2_size << t.q)
+ fprintf (stream, ",");
+ }
+ if (t.level2_size << t.q > 8)
+ fprintf (stream, "\n ");
+ fprintf (stream, " },\n");
+ fprintf (stream, " {");
+ if (t.level3_size << t.p > 4)
+ fprintf (stream, "\n ");
+ for (i = 0; i < t.level3_size << t.p; i++)
+ {
+ uint32_t value = ((uint32_t *) (t.result + level3_offset))[i];
+
+ if (i > 0 && (i % 4) == 0)
+ fprintf (stream, "\n ");
+ if (value == 0)
+ fprintf (stream, " 0");
+ else
+ fprintf (stream, " 0x%08X", value);
+ if (i+1 < t.level3_size << t.p)
+ fprintf (stream, ",");
+ }
+ if (t.level3_size << t.p > 4)
+ fprintf (stream, "\n ");
+ fprintf (stream, " }\n");
+ fprintf (stream, "};\n");
+
+#else
+
+ /* We use gperf to implement the hash lookup, giving it the 928 sets of
+ 4 bytes (code1, code2) as input. gperf generates a hash table of size
+ 1527, which is quite good (60% filled). It requires an auxiliary table
+ lookup in a table of size 0.5 KB. The total tables size is 11 KB. */
+
+ fprintf (stream, "struct composition_rule { char codes[4]; };\n");
+ fprintf (stream, "%%struct-type\n");
+ fprintf (stream, "%%language=ANSI-C\n");
+ fprintf (stream, "%%define slot-name codes\n");
+ fprintf (stream, "%%define hash-function-name gl_uninorm_compose_hash\n");
+ fprintf (stream, "%%define lookup-function-name gl_uninorm_compose_lookup\n");
+ fprintf (stream, "%%compare-lengths\n");
+ fprintf (stream, "%%compare-strncmp\n");
+ fprintf (stream, "%%readonly-tables\n");
+ fprintf (stream, "%%omit-struct-type\n");
+ fprintf (stream, "%%%%\n");
+
+ for (ch = 0; ch < 0x110000; ch++)
+ {
+ unsigned int length;
+ unsigned int decomposed[MAX_DECOMP_LENGTH];
+ int type = get_decomposition (ch, &length, decomposed);
+
+ if (type == UC_DECOMP_CANONICAL
+ /* Consider only binary decompositions.
+ Exclude singleton decompositions. */
+ && length == 2)
+ {
+ unsigned int code1 = decomposed[0];
+ unsigned int code2 = decomposed[1];
+ unsigned int combined = ch;
+
+ /* Exclude decompositions where the first part is not a starter,
+ i.e. is not of canonical combining class 0. */
+ if (strcmp (unicode_attributes[code1].combining, "0") == 0
+ /* Exclude characters listed in CompositionExclusions.txt. */
+ && !unicode_composition_exclusions[combined])
+ {
+ /* The combined character must now also be a starter.
+ Verify this. */
+ if (strcmp (unicode_attributes[combined].combining, "0") != 0)
+ abort ();
+
+ if (!(code1 < 0x10000))
+ abort ();
+ if (!(code2 < 0x10000))
+ abort ();
+ if (!(combined < 0x10000))
+ abort ();
+
+ fprintf (stream, "\"\\x%02x\\x%02x\\x%02x\\x%02x\", 0x%04x\n",
+ (code1 >> 8) & 0xff, code1 & 0xff,
+ (code2 >> 8) & 0xff, code2 & 0xff,
+ combined);
+ }
+ }
+ }
+
+#endif
+
+ if (ferror (stream) || fclose (stream))
+ {
+ fprintf (stderr, "error writing to '%s'\n", filename);
+ exit (1);
+ }
+}
+
+/* ========================================================================= */
+
/* Output the test for a simple character mapping table to the given file. */
static void
const char *eastasianwidth_filename;
const char *linebreak_filename;
const char *wordbreakproperty_filename;
+ const char *compositionexclusions_filename;
const char *version;
- if (argc != 11)
+ if (argc != 12)
{
- fprintf (stderr, "Usage: %s UnicodeData.txt PropList.txt DerivedCoreProperties.txt Scripts.txt Blocks.txt PropList-3.0.1.txt EastAsianWidth.txt LineBreak.txt WordBreakProperty.txt version\n",
+ fprintf (stderr, "Usage: %s UnicodeData.txt PropList.txt DerivedCoreProperties.txt Scripts.txt Blocks.txt PropList-3.0.1.txt EastAsianWidth.txt LineBreak.txt WordBreakProperty.txt CompositionExclusions.txt version\n",
argv[0]);
exit (1);
}
eastasianwidth_filename = argv[7];
linebreak_filename = argv[8];
wordbreakproperty_filename = argv[9];
- version = argv[10];
+ compositionexclusions_filename = argv[10];
+ version = argv[11];
fill_attributes (unicodedata_filename);
clear_properties ();
fill_width (eastasianwidth_filename);
fill_org_lbp (linebreak_filename);
fill_org_wbp (wordbreakproperty_filename);
+ fill_composition_exclusions (compositionexclusions_filename);
output_categories (version);
output_category ("unictype/categ_of.h", version);
debug_output_org_wbrk_tables ("uniwbrk/wbrkprop_org.txt");
output_wbrk_tables ("uniwbrk/wbrkprop.h", version);
+ output_decomposition_tables ("uninorm/decomposition-table1.h", "uninorm/decomposition-table2.h", version);
+ debug_output_composition_tables ("uninorm/composition.txt");
+ output_composition_tables ("uninorm/composition-table.gperf", version);
+
output_simple_mapping_test ("../tests/unicase/test-uc_toupper.c", "uc_toupper", to_upper, version);
output_simple_mapping_test ("../tests/unicase/test-uc_tolower.c", "uc_tolower", to_lower, version);
output_simple_mapping_test ("../tests/unicase/test-uc_totitle.c", "uc_totitle", to_title, version);
/gfs/petix/Volumes/ExtData/www-archive/software/i18n/unicode/ftp.unicode.org/ArchiveVersions/5.1.0/ucd/EastAsianWidth.txt \
/gfs/petix/Volumes/ExtData/www-archive/software/i18n/unicode/ftp.unicode.org/ArchiveVersions/5.1.0/ucd/LineBreak.txt \
/gfs/petix/Volumes/ExtData/www-archive/software/i18n/unicode/ftp.unicode.org/ArchiveVersions/5.1.0/ucd/auxiliary/WordBreakProperty.txt \
+ /gfs/petix/Volumes/ExtData/www-archive/software/i18n/unicode/ftp.unicode.org/ArchiveVersions/5.1.0/ucd/CompositionExclusions.txt \
5.1.0
"
* End:
projects / gnulib.git / commitdiff