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add function edit_get_utf_char
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parent
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commit
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14
edit/edit.c
14
edit/edit.c
@ -118,6 +118,20 @@ int edit_get_byte (WEdit * edit, long byte_index)
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}
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}
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char *edit_get_utf_char (WEdit * edit, long byte_index)
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{
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unsigned long p;
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if (byte_index >= (edit->curs1 + edit->curs2) || byte_index < 0)
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return NULL;
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if (byte_index >= edit->curs1) {
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p = edit->curs1 + edit->curs2 - byte_index - 1;
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return str_get_next_char_safe (edit->buffers2[p >> S_EDIT_BUF_SIZE]+(EDIT_BUF_SIZE - (p & M_EDIT_BUF_SIZE) - 1));
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} else {
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return str_get_next_char_safe (edit->buffers1[byte_index >> S_EDIT_BUF_SIZE]+(byte_index & M_EDIT_BUF_SIZE));
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}
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}
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/*
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* Initialize the buffers for an empty files.
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*/
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