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function void
byp_reformat_buffer(Application_Links *app, Buffer_ID buffer){
Token_Array arr = get_token_array_from_buffer(app, buffer);
if(arr.tokens == 0){ return; }
Face_ID face = get_face_id(app, buffer);
Face_Metrics metrics = get_face_metrics(app, face);
Scratch_Block scratch(app);
String_Const_u8 spaces = string_u8_litexpr(" ");
Batch_Edit *batch_first = 0;
Batch_Edit *batch_last = 0;
i64 line_count = buffer_get_line_count(app, buffer);
for(i64 line = 1; line <= line_count; line += 1){
i64 line_start = get_line_side_pos(app, buffer, line, Side_Min);
i64 line_end = get_line_side_pos(app, buffer, line, Side_Max);
if(line_start == line_end){ continue; } // line is empty
Token* token = get_token_from_pos(app, &arr, line_start);
if(token == 0){ continue; }
i64 token_end = token->pos + token->size;
b32 is_whitespace = (token->kind == TokenBaseKind_Whitespace);
b32 on_same_line = (token_end < line_end);
b32 clear_blank = (is_whitespace && !on_same_line);
i64 ws_end = (!is_whitespace ? line_start : // Need to insert spaces
on_same_line ? token_end // Need to replace ws-token
/* - else - */ : line_end); // Need to clear line
i64 count = 0;
if(!clear_blank){
f32 x = buffer_relative_box_of_pos(app, buffer, 1e9f, face, line, ws_end).x0;
count = (i64)(x / metrics.space_advance);
if(count < 0){ continue; } // impossible, but better safe than sorry
if(count == ws_end-line_start){
// spaced correctly, might be able to skip
b32 all_spaces = true;
for(i64 i=0; i<count; i++){
all_spaces &= (' ' == buffer_get_char(app, buffer, line_start+i));
}
if(all_spaces){ continue; } // No need to edit, line is good to go
}
}
if((i64)spaces.size < count){
spaces = string_const_u8_push(scratch, count);
block_fill_u8(spaces.str, count, ' ');
}
Batch_Edit *batch = push_array(scratch, Batch_Edit, 1);
sll_queue_push(batch_first, batch_last, batch);
batch->edit.text = string_prefix(spaces, count);
batch->edit.range = Ii64(line_start, ws_end);
}
if(batch_first != 0){
buffer_batch_edit(app, buffer, batch_first);
}
}
function void
trim_leading_whitespace(Application_Links *app, Buffer_ID buffer){
Scratch_Block scratch(app);
Batch_Edit *batch_first = 0;
Batch_Edit *batch_last = 0;
i64 line_count = buffer_get_line_count(app, buffer);
for(i64 line_number = 1; line_number <= line_count; line_number += 1){
i64 line_start = get_line_side_pos(app, buffer, line_number, Side_Min);
i64 line_end = get_line_side_pos(app, buffer, line_number, Side_Max);
i64 ws_start = line_start;
i64 ws_end = -1;
{
Temp_Memory_Block temp(scratch);
String_Const_u8 line = push_buffer_range(app, scratch, buffer, Ii64(line_start, line_end));
for(u64 i=0; i<line.size; i += 1){
if(!character_is_whitespace(line.str[i])){ break; }
ws_end = line_start + i + 1;
}
}
if(ws_end == -1){ continue; }
Batch_Edit *batch = push_array(scratch, Batch_Edit, 1);
sll_queue_push(batch_first, batch_last, batch);
batch->edit.text = string_u8_empty;
batch->edit.range = Ii64(ws_start, ws_end);
}
if (batch_first != 0){
buffer_batch_edit(app, buffer, batch_first);
}
}
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