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Fix in the hack index -> character; all of those things need to be revisited for robustness and performance!

This commit is contained in:
Allen Webster 2019-10-08 13:39:35 -07:00
parent 2f68a95fd5
commit 640481de56
1 changed files with 21 additions and 13 deletions
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34
4ed_buffer.cpp
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@ -1016,19 +1016,27 @@ buffer_layout_character_from_pos(Buffer_Layout_Item_List list, i64 index){
i64 result = 0;
i64 character_count = 0;
i64 prev_index = -1;
for (Buffer_Layout_Item_Block *node = list.first;
node != 0;
node = node->next){
Buffer_Layout_Item *item = node->items;
i64 count = node->count;
for (i64 i = 0; i < count; i += 1, item += 1){
if (item->index == index){
result = character_count;
goto double_break;
}
if (item->index != prev_index){
prev_index = item->index;
character_count += 1;
if (index <= list.index_range.first){
result = 0;
}
else if (index > list.index_range.one_past_last){
result = list.character_count - 1;
}
else{
for (Buffer_Layout_Item_Block *node = list.first;
node != 0;
node = node->next){
Buffer_Layout_Item *item = node->items;
i64 count = node->count;
for (i64 i = 0; i < count; i += 1, item += 1){
if (item->index == index){
result = character_count;
goto double_break;
}
if (item->index != prev_index){
prev_index = item->index;
character_count += 1;
}
}
}
}