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sync code with last improvements from OpenBSD

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This commit is contained in:
purplerain 2023-08-28 05:57:34 +00:00
commit 88965415ff
Signed by: purplerain
GPG key ID: F42C07F07E2E35B7
26235 changed files with 29195616 additions and 0 deletions
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24
app/xterm/unicode/precompose.c.tail Normal file
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};
#define UNICODE_SHIFT 21
int do_precomposition(int base, int comb) {
int min = 0;
int max = sizeof(precompositions) / sizeof(precompositions[0]) - 1;
unsigned long sought = ((unsigned) base << UNICODE_SHIFT) | (unsigned) comb;
/* binary search */
while (max >= min) {
int mid = (min + max) / 2;
unsigned long that = ((unsigned long) precompositions[mid].base << UNICODE_SHIFT) | ((unsigned) precompositions[mid].comb);
if (that < sought) {
min = mid + 1;
} else if (that > sought) {
max = mid - 1;
} else {
return precompositions[mid].replacement;
}
}
/* no match */
return -1;
}