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Migrated OS X graphemes.m.

This commit is contained in:
Pietro Gagliardi 2018-03-04 15:48:45 -05:00
parent 7fd012418d
commit 36567cc522
3 changed files with 8 additions and 5 deletions
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1
darwin/attrstr.h
View File

@ -1,4 +1,5 @@
// 4 march 2018
#import "../common/attrstr.h"
// opentype.m
extern CFArrayRef uiprivOpenTypeFeaturesToCTFeatures(const uiOpenTypeFeatures *otf);

11
darwin/OLD_graphemes.m → darwin/graphemes.m
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@ -1,15 +1,16 @@
// 3 december 2016
#import "uipriv_darwin.h"
#import "attrstr.h"
// CFStringGetRangeOfComposedCharactersAtIndex() is the function for grapheme clusters
// https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Strings/Articles/stringsClusters.html says that this does work on all multi-codepoint graphemes (despite the name), and that this is the preferred function for this particular job anyway
int graphemesTakesUTF16(void)
int uiprivGraphemesTakesUTF16(void)
{
return 1;
}
struct graphemes *graphemes(void *s, size_t len)
struct graphemes *uiprivNewGraphemes(void *s, size_t len)
{
struct graphemes *g;
UniChar *str = (UniChar *) s;
@ -18,7 +19,7 @@ struct graphemes *graphemes(void *s, size_t len)
CFRange range;
size_t i;
g = uiNew(struct graphemes);
g = uiprivNew(struct graphemes);
cfstr = CFStringCreateWithCharactersNoCopy(NULL, str, len, kCFAllocatorNull);
if (cfstr == NULL) {
@ -34,8 +35,8 @@ struct graphemes *graphemes(void *s, size_t len)
ppos = range.location + range.length;
}
g->pointsToGraphemes = (size_t *) uiAlloc((len + 1) * sizeof (size_t), "size_t[] (graphemes)");
g->graphemesToPoints = (size_t *) uiAlloc((g->len + 1) * sizeof (size_t), "size_t[] (graphemes)");
g->pointsToGraphemes = (size_t *) uiprivAlloc((len + 1) * sizeof (size_t), "size_t[] (graphemes)");
g->graphemesToPoints = (size_t *) uiprivAlloc((g->len + 1) * sizeof (size_t), "size_t[] (graphemes)");
// now calculate everything
// fortunately due to the use of CFRange we can do this in one loop trivially!

1
darwin/opentype.m
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@ -1,5 +1,6 @@
// 11 may 2017
#import "uipriv_darwin.h"
#import "attrstr.h"
struct addCTFeatureEntryParams {
CFMutableArrayRef array;