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authorMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
commitb16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 (patch)
tree4361edef0d42d5bf5ac984ef72b4fac35426eae7 /nx-X11/programs/xterm/charclass.c
parent0d5a83e986f39982c0924652a3662e60b1f23162 (diff)
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massive reduction of unneeded files
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diff --git a/nx-X11/programs/xterm/charclass.c b/nx-X11/programs/xterm/charclass.c
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-/* $XTermId: charclass.c,v 1.10 2005/01/14 01:50:02 tom Exp $ */
-
-/*
- * Compact and efficient reimplementation of the
- * xterm character class mechanism for large character sets
- *
- * Markus Kuhn -- mkuhn@acm.org -- 2000-07-03
- *
- * Xterm allows users to select entire words with a double-click on
- * the left mouse button. Opinions might differ on what type of
- * characters are part of separate words, therefore xterm allows users
- * to configure a class code for each 8-bit character. Words are
- * maximum length sequences of neighboring characters with identical
- * class code. Extending this mechanism to Unicode naively would
- * create an at least 2^16 entries (128 kB) long class code table.
- * Instead, we transform the character class table into a list
- * of intervals, that will be accessed via a linear search.
- * Changes made to the table by the user will be appended. A special
- * class code -1 (default) marks characters who have their code number
- * as the class code. We could alternatively use a sorted table of
- * non-overlapping intervals that can be accessed via binary search,
- * but merging in new intervals is significantly more hassle and
- * not worth the effort here.
- */
-/* $XFree86: xc/programs/xterm/charclass.c,v 1.5 2005/01/14 01:50:02 dickey Exp $ */
-
-#include <xterm.h>
-#include <charclass.h>
-
-#if OPT_WIDE_CHARS
-
-static struct classentry {
- int cclass;
- int first;
- int last;
-} *classtab;
-
-/*
- * Special convention for classtab[0]:
- * - classtab[0].cclass is the allocated number of entries in classtab
- * - classtab[0].first = 1 (first used entry in classtab)
- * - classtab[0].last is the last used entry in classtab
- */
-
-int
-SetCharacterClassRange(int low, int high, int value)
-{
- if (high < low)
- return -1; /* nothing to do */
-
- /* make sure we have at least one free entry left at table end */
- if (classtab[0].last > classtab[0].cclass - 2) {
- classtab[0].cclass += 5 + classtab[0].cclass / 4;
- classtab = TypeRealloc(struct classentry, classtab[0].cclass, classtab);
- if (!classtab)
- abort();
- }
-
- /* simply append new interval to end of interval array */
- classtab[0].last++;
- classtab[classtab[0].last].first = low;
- classtab[classtab[0].last].last = high;
- classtab[classtab[0].last].cclass = value;
-
- return 0;
-}
-
-void
-init_classtab(void)
-{
- const int size = 50;
-
- classtab = TypeMallocN(struct classentry, size);
- if (!classtab)
- abort();
- classtab[0].cclass = size;
- classtab[0].first = 1;
- classtab[0].last = 0;
-
- /* old xterm default classes */
- SetCharacterClassRange(0, 0, 32);
- SetCharacterClassRange(1, 31, 1);
- SetCharacterClassRange('\t', '\t', 32);
- SetCharacterClassRange('0', '9', 48);
- SetCharacterClassRange('A', 'Z', 48);
- SetCharacterClassRange('_', '_', 48);
- SetCharacterClassRange('a', 'z', 48);
- SetCharacterClassRange(127, 159, 1);
- SetCharacterClassRange(160, 191, -1);
- SetCharacterClassRange(192, 255, 48);
- SetCharacterClassRange(215, 215, 216);
- SetCharacterClassRange(247, 247, 248);
-
- /* added Unicode classes */
- SetCharacterClassRange(0x0100, 0xffdf, 48); /* mostly characters */
- SetCharacterClassRange(0x037e, 0x037e, -1); /* Greek question mark */
- SetCharacterClassRange(0x0387, 0x0387, -1); /* Greek ano teleia */
- SetCharacterClassRange(0x055a, 0x055f, -1); /* Armenian punctuation */
- SetCharacterClassRange(0x0589, 0x0589, -1); /* Armenian full stop */
- SetCharacterClassRange(0x0700, 0x070d, -1); /* Syriac punctuation */
- SetCharacterClassRange(0x104a, 0x104f, -1); /* Myanmar punctuation */
- SetCharacterClassRange(0x10fb, 0x10fb, -1); /* Georgian punctuation */
- SetCharacterClassRange(0x1361, 0x1368, -1); /* Ethiopic punctuation */
- SetCharacterClassRange(0x166d, 0x166e, -1); /* Canadian Syl. punctuation */
- SetCharacterClassRange(0x17d4, 0x17dc, -1); /* Khmer punctuation */
- SetCharacterClassRange(0x1800, 0x180a, -1); /* Mongolian punctuation */
- SetCharacterClassRange(0x2000, 0x200a, 32); /* spaces */
- SetCharacterClassRange(0x200b, 0x27ff, -1); /* punctuation and symbols */
- SetCharacterClassRange(0x2070, 0x207f, 0x2070); /* superscript */
- SetCharacterClassRange(0x2080, 0x208f, 0x2080); /* subscript */
- SetCharacterClassRange(0x3000, 0x3000, 32); /* ideographic space */
- SetCharacterClassRange(0x3001, 0x3020, -1); /* ideographic punctuation */
- SetCharacterClassRange(0x3040, 0x309f, 0x3040); /* Hiragana */
- SetCharacterClassRange(0x30a0, 0x30ff, 0x30a0); /* Katakana */
- SetCharacterClassRange(0x3300, 0x9fff, 0x4e00); /* CJK Ideographs */
- SetCharacterClassRange(0xac00, 0xd7a3, 0xac00); /* Hangul Syllables */
- SetCharacterClassRange(0xf900, 0xfaff, 0x4e00); /* CJK Ideographs */
- SetCharacterClassRange(0xfe30, 0xfe6b, -1); /* punctuation forms */
- SetCharacterClassRange(0xff00, 0xff0f, -1); /* half/fullwidth ASCII */
- SetCharacterClassRange(0xff1a, 0xff20, -1); /* half/fullwidth ASCII */
- SetCharacterClassRange(0xff3b, 0xff40, -1); /* half/fullwidth ASCII */
- SetCharacterClassRange(0xff5b, 0xff64, -1); /* half/fullwidth ASCII */
-
- return;
-}
-
-int
-CharacterClass(int c)
-{
- int i, cclass = -1;
-
- for (i = classtab[0].first; i <= classtab[0].last; i++)
- if (classtab[i].first <= c && classtab[i].last >= c)
- cclass = classtab[i].cclass;
-
- if (cclass < 0)
- cclass = c;
-
- return cclass;
-}
-
-#endif /* OPT_WIDE_CHARS */