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Migrated attrstr.c back like we just did to attrlist.c. RIP "graphemes()"

This commit is contained in:
Pietro Gagliardi 2018-03-03 22:02:18 -05:00
parent 766f3a0cb2
commit f025783632
3 changed files with 28 additions and 26 deletions
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7
common/OLD_uipriv_attrstr.h
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@ -10,13 +10,6 @@ extern struct graphemes *graphemes(void *s, size_t len);
// TODO split these into a separate header file?
// attrstr.c
extern const uint16_t *attrstrUTF16(uiAttributedString *s);
extern size_t attrstrUTF16Len(uiAttributedString *s);
extern size_t attrstrUTF8ToUTF16(uiAttributedString *s, size_t n);
extern size_t *attrstrCopyUTF8ToUTF16(uiAttributedString *s, size_t *n);
extern size_t *attrstrCopyUTF16ToUTF8(uiAttributedString *s, size_t *n);
// drawtext.c
struct caretDrawParams {
double r;

40
common/OLD_attrstr.c → common/attrstr.c
View File

@ -1,12 +1,13 @@
// 3 december 2016
#include "../ui.h"
#include "uipriv.h"
#include "attrstr.h"
struct uiAttributedString {
char *s;
size_t len;
struct attrlist *attrs;
uiprivAttrList *attrs;
// indiscriminately keep a UTF-16 copy of the string on all platforms so we can hand this off to the grapheme calculator
// this ensures no one platform has a speed advantage (sorry GTK+)
@ -17,7 +18,7 @@ struct uiAttributedString {
size_t *u16tou8;
// this is lazily created to keep things from getting *too* slow
struct graphemes *graphemes;
uiprivGraphemes *graphemes;
};
static void resize(uiAttributedString *s, size_t u8, size_t u16)
@ -35,21 +36,21 @@ uiAttributedString *uiNewAttributedString(const char *initialString)
uiAttributedString *s;
s = uiNew(uiAttributedString);
s->attrs = attrlistNew();
s->attrs = uiprivNewAttrList();
uiAttributedStringAppendUnattributed(s, initialString);
return s;
}
// TODO make sure that all implementations of graphemes() work fine with empty strings; in particular, the Windows one might not
// TODO make sure that all implementations of uiprivNewGraphemes() work fine with empty strings; in particular, the Windows one might not
static void recomputeGraphemes(uiAttributedString *s)
{
if (s->graphemes != NULL)
return;
if (graphemesTakesUTF16()) {
s->graphemes = graphemes(s->u16, s->u16len);
if (uiprivGraphemesTakesUTF16()) {
s->graphemes = uiprivNewGraphemes(s->u16, s->u16len);
return;
}
s->graphemes = graphemes(s->s, s->len);
s->graphemes = uiprivNewGraphemes(s->s, s->len);
}
static void invalidateGraphemes(uiAttributedString *s)
@ -64,7 +65,7 @@ static void invalidateGraphemes(uiAttributedString *s)
void uiFreeAttributedString(uiAttributedString *s)
{
attrlistFree(s->attrs);
uiprivFreeAttrList(s->attrs);
invalidateGraphemes(s);
uiFree(s->u16tou8);
uiFree(s->u8tou16);
@ -94,6 +95,7 @@ static void u8u16len(const char *str, size_t *n8, size_t *n16)
while (*str) {
str = utf8DecodeRune(str, 0, &rune);
// TODO document the use of the function vs a pointer subtract here
// TODO also we need to consider namespace collision with utf.h...
*n8 += utf8EncodeRune(rune, buf);
*n16 += utf16EncodeRune(rune, buf16);
}
@ -216,7 +218,7 @@ void uiAttributedStringInsertAtUnattributed(uiAttributedString *s, const char *s
s->u16tou8[at16 + oldn16 + i] += s->len - oldlen;
// and finally do the attributes
attrlistInsertCharactersUnattributed(s->attrs, at, n8);
uiprivAttrListInsertCharactersUnattributed(s->attrs, at, n8);
}
// TODO document that end is the first index that will be maintained
@ -271,7 +273,7 @@ void uiAttributedStringDelete(uiAttributedString *s, size_t start, size_t end)
s->u16[start16 + count16] = 0;
// fix up attributes
attrlistRemoveCharacters(s->attrs, start, end);
uiprivAttrListRemoveCharacters(s->attrs, start, end);
// and finally resize
resize(s, start + count, start16 + count16);
@ -287,7 +289,7 @@ size_t uiAttributedStringNumGraphemes(uiAttributedString *s)
size_t uiAttributedStringByteIndexToGrapheme(uiAttributedString *s, size_t pos)
{
recomputeGraphemes(s);
if (graphemesTakesUTF16())
if (uiprivGraphemesTakesUTF16())
pos = s->u8tou16[pos];
return s->graphemes->pointsToGraphemes[pos];
}
@ -296,41 +298,41 @@ size_t uiAttributedStringGraphemeToByteIndex(uiAttributedString *s, size_t pos)
{
recomputeGraphemes(s);
pos = s->graphemes->graphemesToPoints[pos];
if (graphemesTakesUTF16())
if (uiprivGraphemesTakesUTF16())
pos = s->u16tou8[pos];
return pos;
}
void uiAttributedStringSetAttribute(uiAttributedString *s, uiAttributeSpec *spec, size_t start, size_t end)
{
attrlistInsertAttribute(s->attrs, spec, start, end);
uiprivAttrListInsertAttribute(s->attrs, spec, start, end);
}
// LONGTERM introduce an iterator object instead?
void uiAttributedStringForEachAttribute(uiAttributedString *s, uiAttributedStringForEachAttributeFunc f, void *data)
{
attrlistForEach(s->attrs, s, f, data);
uiprivAttrListForEach(s->attrs, s, f, data);
}
// helpers for platform-specific code
const uint16_t *attrstrUTF16(uiAttributedString *s)
const uint16_t *uiprivAttributedStringUTF16String(uiAttributedString *s)
{
return s->u16;
}
size_t attrstrUTF16Len(uiAttributedString *s)
size_t uiprivAttributedStringUTF16Len(uiAttributedString *s)
{
return s->u16len;
}
// TODO is this still needed given the below?
size_t attrstrUTF8ToUTF16(uiAttributedString *s, size_t n)
size_t uiprivAttributedStringUTF8ToUTF16(uiAttributedString *s, size_t n)
{
return s->u8tou16[n];
}
size_t *attrstrCopyUTF8ToUTF16(uiAttributedString *s, size_t *n)
size_t *uiprivAttributedStringCopyUTF8ToUTF16Table(uiAttributedString *s, size_t *n)
{
size_t *out;
size_t nbytes;
@ -342,7 +344,7 @@ size_t *attrstrCopyUTF8ToUTF16(uiAttributedString *s, size_t *n)
return out;
}
size_t *attrstrCopyUTF16ToUTF8(uiAttributedString *s, size_t *n)
size_t *uiprivAttributedStringCopyUTF16ToUTF8Table(uiAttributedString *s, size_t *n)
{
size_t *out;
size_t nbytes;

7
common/attrstr.h
View File

@ -19,3 +19,10 @@ extern void uiprivAttrListRemoveAttribute(uiprivAttrList *alist, uiAttribute typ
extern void uiprivAttrListRemoveAttributes(uiprivAttrList *alist, size_t start, size_t end);
extern void uiprivAttrListRemoveCharacters(uiprivAttrList *alist, size_t start, size_t end);
extern void uiprivAttrListForEach(uiprivAttrList *alist, uiAttributedString *s, uiAttributedStringForEachAttributeFunc f, void *data);
// attrstr.c
extern const uint16_t *uiprivAttributedStringUTF16String(uiAttributedString *s);
extern size_t uiprivAttributedStringUTF16Len(uiAttributedString *s);
extern size_t uiprivAttributedStringUTF8ToUTF16(uiAttributedString *s, size_t n);
extern size_t *uiprivAttributedStringCopyUTF8ToUTF16Table(uiAttributedString *s, size_t *n);
extern size_t *uiprivAttributedStringCopyUTF16ToUTF8Table(uiAttributedString *s, size_t *n);