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Convert to UTF-8 before doing length calculations (untested)

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This commit is contained in:
Chris Young 2013-01-09 18:41:53 +00:00
parent ec8e6ac91d
commit f15f19f788
1 changed files with 53 additions and 48 deletions
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99
amiga/clipboard.c Executable file → Normal file
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@ -117,35 +117,52 @@ void gui_clear_selection(struct gui_window *g)
OffMenu(g->shared->win, AMI_MENU_COPY);
}
bool ami_clipboard_check_for_utf8(struct IFFHandle *iffh) {
struct ContextNode *cn;
ULONG error;
bool utf8_chunk = false;
if(OpenIFF(iffh, IFFF_READ)) return false;
ami_clipboard_iffp_clear_stopchunk(iffh, ID_FTXT, ID_CSET);
ami_clipboard_iffp_clear_stopchunk(iffh, ID_FTXT, ID_CHRS);
if(!StopChunk(iffh, ID_FTXT, ID_UTF8)) {
error = ParseIFF(iffh, IFFPARSE_SCAN);
if(error != IFFERR_EOF)
utf8_chunk = true; /* or a real error, but that'll get caught later */
}
CloseIFF(iffh);
return utf8_chunk;
}
char *ami_clipboard_cat_collection(struct CollectionItem *ci, LONG codeset, size_t *text_length)
{
struct CollectionItem *ci_curr = ci;
struct CollectionItem *ci_new = NULL, *ci_next, *ci_curr = ci;
size_t len = 0;
char *text = NULL, *p, *clip;
/* Scan the collected chunks to find out the total size */
/* Scan the collected chunks to find out the total size.
* If they are not in UTF-8, convert the chunks first and create a new CollectionItem list.
*/
do {
len += ci_curr->ci_Size;
switch(codeset) {
case 106:
len += ci_curr->ci_Size;
break;
case 0:
if(ci_new) {
ci_next->ci_Next = AllocVec(sizeof(struct CollectionItem), MEMF_PRIVATE | MEMF_CLEAR);
ci_next = ci_next->ci_Next;
} else {
ci_new = AllocVec(sizeof(struct CollectionItem), MEMF_PRIVATE | MEMF_CLEAR);
ci_next = ci_new;
}
utf8_from_local_encoding(ci_curr->ci_Data, ci_curr->ci_Size, &ci_next->ci_Data);
ci_next->ci_Size = strlen(ci_next->ci_Data);
len += ci_next->ci_Size;
break;
default:
if(ci_new) {
ci_next->ci_Next = AllocVec(sizeof(struct CollectionItem), MEMF_PRIVATE | MEMF_CLEAR);
ci_next = ci_next->ci_Next;
} else {
ci_new = AllocVec(sizeof(struct CollectionItem), MEMF_PRIVATE | MEMF_CLEAR);
ci_next = ci_new;
}
utf8_from_enc(ci_curr->ci_Data,
(const char *)ObtainCharsetInfo(DFCS_NUMBER,
codeset, DFCS_MIMENAME),
ci_curr->ci_Size, &clip);
ci_next->ci_Size = strlen(ci_next->ci_Data);
len += ci_next->ci_Size;
break;
}
} while (ci_curr = ci_curr->ci_Next);
text = malloc(len);
@ -155,35 +172,23 @@ char *ami_clipboard_cat_collection(struct CollectionItem *ci, LONG codeset, size
/* p points to the end of the buffer. This is because the chunks are
* in the list in reverse order. */
p = text + len;
ci_curr = ci;
if(ci_new) {
ci_curr = ci;
} else {
ci_curr = ci_new;
}
do {
p -= ci_curr->ci_Size;
memcpy(p, ci_curr->ci_Data, ci_curr->ci_Size);
ci_next = ci_curr->ci_Next;
switch(codeset) {
case 106:
memcpy(p, ci_curr->ci_Data, ci_curr->ci_Size);
break;
/* If codeset isn't 106 (UTF-8) we need to convert to UTF-8.
* TODO: ensure buffer is big enough for converted text */
case 0:
utf8_from_local_encoding(ci_curr->ci_Data, ci_curr->ci_Size, &clip);
memcpy(p, clip, ci_curr->ci_Size);
free(clip);
break;
default:
utf8_from_enc(ci_curr->ci_Data,
(const char *)ObtainCharsetInfo(DFCS_NUMBER,
codeset, DFCS_MIMENAME),
ci_curr->ci_Size, &clip);
memcpy(p, clip, ci_curr->ci_Size);
free(clip);
break;
if(ci_new) {
free(ci_curr->ci_Data);
FreeVec(ci_curr);
}
} while (ci_curr = ci_curr->ci_Next);
} while (ci_curr = ci_next);
*text_length = len;
return text;