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#include "calc.hpp"
function void
vim_update_registers(Application_Links *app){
#if VIM_USE_REIGSTER_BUFFER
Buffer_ID buffer = buffer_identifier_to_id(app, buffer_identifier(string_u8_litexpr("*registers*")));
i64 buffer_size = buffer_get_size(app, buffer);
f32 advance = get_face_metrics(app, get_face_id(app, buffer)).normal_advance;
i64 max_line_size = i64(rect_width(global_get_screen_rectangle(app))/advance) - 4;
max_line_size = Max(max_line_size, 30);
Scratch_Block scratch(app);
Batch_Edit head = {};
Batch_Edit *last = &head;
String_Const_u8 top_text = string_u8_litexpr("Vim Registers\n-+-----------");
head.edit.range = Ii64(0, top_text.size);
head.edit.text = top_text;
i64 total_size = top_text.size;
foreach(i, ArrayCount(vim_registers.r)){
Vim_Register *reg = vim_registers.r + i;
if(reg->flags & REGISTER_Set){
u8 reg_char = vim_get_register_char(reg);
i64 size = Min(i64(reg->data.size), max_line_size);
size -= (reg->data.str[size-1] == '\n');
last = (last->next = push_array(scratch, Batch_Edit, 1));
u8 *str = push_array(scratch, u8, 4);
str[0] = '\n';
str[1] = reg_char;
str[2] = '|';
str[3] = ' ';
last->edit.text = SCu8(str, 4);
last->edit.range = Ii64_size(total_size, 4);
total_size += 4;
last = (last->next = push_array(scratch, Batch_Edit, 1));
last->edit.text = string_substring(reg->data.string, Ii64(0, size));
last->edit.range = Ii64_size(total_size, size);
total_size += size;
if(reg->flags & REGISTER_Updated){
reg->flags &= (~REGISTER_Updated);
buffer_post_fade(app, buffer, 0.667f, last->edit.range, fcolor_resolve(fcolor_id(defcolor_cursor)));
}
}
}
last->next = 0;
String_Const_u8 blank_string = SCu8(push_array(scratch, u8, total_size+1), total_size+1);
blank_string.str[total_size] = ' ';
buffer_replace_range(app, buffer, Ii64(0, buffer_size), blank_string);
buffer_batch_edit(app, buffer, &head);
#endif
}
function void vim_eval_register(Application_Links *app, Vim_Register *reg){
reg->data.str[reg->data.size] = 0;
Scratch_Block scratch(app);
vim_register_copy(reg, push_stringf(scratch, "%g", EXPR_ParseString(scratch, (char *)reg->data.str)));
}
function void vim_push_reg_cycle(Application_Links *app){
Scratch_Block scratch(app);
for(i32 i=ArrayCount(vim_registers.cycle)-1; i>0; i--){
if(vim_registers.cycle[i-1].flags & REGISTER_Set){
vim_register_copy(&vim_registers.cycle[i], &vim_registers.cycle[i-1]);
}
}
}
function void
vim_copy(Application_Links *app, View_ID view, Buffer_ID buffer, Range_i64 range, Vim_Register *reg){
if(reg->flags & REGISTER_ReadOnly){
vim_state.chord_resolved = bitmask_2;
Scratch_Block scratch(app);
vim_set_bottom_text(push_stringf(scratch, "Register %c is Read Only", vim_get_register_char(reg)));
return;
}
u32 append = ((reg->flags & REGISTER_Append) != 0);
u64 size = u64(range_size(range)) + append*reg->data.size;
b32 valid = true;
if(size >= reg->data.cap){ valid = vim_realloc_string(®->data, size); }
if(!valid){ return; }
buffer_read_range(app, buffer, range, reg->data.str + append*reg->data.size);
reg->data.size = size;
buffer_post_fade(app, buffer, 0.667f, range, fcolor_resolve(fcolor_id(defcolor_paste)));
reg->flags |= (REGISTER_Set|REGISTER_Updated);
if(reg != &vim_registers.yank && vim_state.params.request == REQUEST_Yank){
vim_register_copy(&vim_registers.yank, reg);
}
if(0){}
else if(reg == &vim_registers.system){ clipboard_post(0, reg->data.string); }
else if(reg == &vim_registers.expression){ vim_eval_register(app, reg); }
vim_update_registers(app);
}
function void
vim_paste(Application_Links *app, View_ID view, Buffer_ID buffer, Vim_Register *reg){
if(reg->edit_type == EDIT_Block){ vim_block_paste(app, view, buffer, reg); return; }
i64 pos = view_get_cursor_pos(app, view);
if(reg == &vim_registers.system){
clipboard_update_history_from_system(app, 0);
clipboard_update_history_from_system(app, 0);
i32 count = clipboard_count(0);
if(count > 0){
Managed_Scope scope = view_get_managed_scope(app, view);
i32 *paste_index = scope_attachment(app, scope, view_paste_index_loc, i32);
if(paste_index){
Scratch_Block scratch(app);
vim_register_copy(reg, push_clipboard_index(app, scratch, 0, *paste_index=0));
vim_update_registers(app);
}
}
}
buffer_replace_range(app, buffer, Ii64(pos), reg->data.string);
view_set_mark(app, view, seek_pos(pos));
i64 cursor_pos = pos + ((i32)reg->data.string.size - (vim_state.mode != VIM_Insert));
view_set_cursor_and_preferred_x(app, view, seek_pos(cursor_pos));
ARGB_Color argb = fcolor_resolve(fcolor_id(defcolor_paste));
buffer_post_fade(app, buffer, 0.667f, Ii64_size(pos, reg->data.string.size), argb);
vim_state.prev_params.selected_reg = vim_state.params.selected_reg;
vim_default_register();
}
VIM_COMMAND_SIG(vim_select_register){
vim_is_selecting_register = true;
u8 c = vim_query_user_key(app, string_u8_litexpr("-- SELECT REGISTER --"));
vim_is_selecting_register = false;
if(c == 0){ return; }
Vim_Register *reg = vim_state.params.selected_reg;
u32 append = 0;
if(0){}
else if(c == '_'){ reg = 0; }
else if(c == '"'){ reg = &vim_registers.unnamed; }
else if(c == '/'){ reg = &vim_registers.search; }
else if(c == '.'){ reg = &vim_registers.insert; }
else if(c == ':'){ reg = &vim_registers.command; }
else if(c == '='){ reg = &vim_registers.expression; }
else if(c == '-'){ reg = &vim_registers.small_delete; }
else if(c == '%'){ reg = &vim_registers.file; }
else if(c == '0'){ reg = &vim_registers.yank; }
else if(c == '*'){ reg = &vim_registers.system; }
else if(c == '+'){ reg = &vim_registers.system; }
else if(in_range('1', c, '9'+1)){ reg = &vim_registers.cycle[c-'1']; }
else if(in_range('a', c, 'z'+1)){ reg = &vim_registers.named[c-'a']; }
else if(in_range('A', c, 'Z'+1)){ reg = &vim_registers.named[c-'A']; append = REGISTER_Append; }
else{ return; }
vim_state.params.selected_reg = reg;
if(reg){
reg->flags &= (~REGISTER_Append);
reg->flags |= append;
}
if(vim_state.mode == VIM_Insert){
if(reg){
View_ID view = get_active_view(app, Access_ReadVisible);
Buffer_ID buffer = view_get_buffer(app, view, Access_ReadVisible);
reg->flags &= (~REGISTER_Append);
vim_paste(app, view, buffer, reg);
}
}else{
vim_state.chord_resolved = false;
}
}
// TODO(BYP): Be more rigorous in debugging/validating correctness on this
function void
vim_process_insert_record(Application_Links *app, Record_Info record, i64 *prev_pos){
Scratch_Block scratch(app);
String_u8 *text = &vim_registers.insert.data;
if(*prev_pos != record.pos_before_edit){
*prev_pos = record.pos_before_edit;
text->size = 0;
}
*prev_pos = *prev_pos - record.single_string_backward.size + record.single_string_forward.size;
text->size = Max(0, i64(text->size) - i64(record.single_string_backward.size));
u64 next_size = u64(text->size + record.single_string_forward.size);
if(next_size >= text->cap){ vim_realloc_string(text, next_size); }
string_append(text, record.single_string_forward);
}
function void
vim_set_insert_register(Application_Links *app){
View_ID view = get_active_view(app, Access_ReadVisible);
Buffer_ID buffer = view_get_buffer(app, view, Access_ReadVisible);
vim_registers.insert.data.size = 0;
Scratch_Block scratch(app);
History_Record_Index index = vim_state.insert_index;
History_Record_Index max_index = buffer_history_get_current_state_index(app, buffer);
i64 prev_pos = vim_state.insert_cursor.pos;
for(; index <= max_index; index++){
Record_Info record = buffer_history_get_record_info(app, buffer, index);
if(record.error != RecordError_NoError){ continue; }
if(record.kind == RecordKind_Single){
vim_process_insert_record(app, record, &prev_pos);
}
else if(record.kind == RecordKind_Group){
foreach(i, record.group_count){
Record_Info sub_record = buffer_history_get_group_sub_record(app, buffer, index, i);
if(sub_record.error != RecordError_NoError){ continue; }
vim_process_insert_record(app, sub_record, &prev_pos);
}
}
}
vim_state.prev_params.do_insert = true;
vim_registers.insert.flags &= (~REGISTER_Append);
vim_registers.insert.flags |= (REGISTER_Set|REGISTER_Updated);
vim_update_registers(app);
history_group_end(vim_history_group);
}
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