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4coder/power/4coder_experiments.cpp

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// TOP
#include "4coder_default_include.cpp"
#define NO_BINDING
#include "4coder_default_bindings.cpp"
#ifndef BIND_4CODER_TESTS
# define BIND_4CODER_TESTS(context) ((void)context)
#endif
#include <string.h>
CUSTOM_COMMAND_SIG(kill_rect){
View_Summary view = app->get_active_view(app, AccessOpen);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, AccessOpen);
Buffer_Rect rect = get_rect(&view);
for (int line = rect.line1; line >= rect.line0; --line){
int start = 0;
int end = 0;
int success = true;
Full_Cursor cursor = {0};
success = success &&
app->view_compute_cursor(app, &view, seek_line_char(line, rect.char0), &cursor);
start = cursor.pos;
success = success &&
app->view_compute_cursor(app, &view, seek_line_char(line, rect.char1), &cursor);
end = cursor.pos;
if (success){
app->buffer_replace_range(app, &buffer, start, end, 0, 0);
}
}
}
static void
pad_buffer_line(Application_Links *app, Partition *part,
Buffer_Summary *buffer, int line,
char padchar, int target){
Partial_Cursor start = {0};
Partial_Cursor end = {0};
if (app->buffer_compute_cursor(app, buffer, seek_line_char(line, 1), &start)){
if (app->buffer_compute_cursor(app, buffer, seek_line_char(line, 65536), &end)){
if (start.line == line){
if (end.character-1 < target){
Temp_Memory temp = begin_temp_memory(part);
int size = target - (end.character-1);
char *str = push_array(part, char, size);
memset(str, ' ', size);
app->buffer_replace_range(app, buffer, end.pos, end.pos, str, size);
end_temp_memory(temp);
}
}
}
}
}
/*
NOTE(allen): Things I learned from this experiment.
First of all the batch edits aren't too bad, but I think
there could be a single system that I run that through that
knows how to build the batch edit from slightly higher level
information. For instance the idea in point 2.
Secondly I definitely believe I need some sort of "mini-buffer"
concept where a view sends commands so that things like
pasting still work. Then the contents of the "mini-buffer"
can be used to complete the edits at all cursor points.
This doesn't answer all questions, because somehow backspace
still wants to work for multi-lines even when the "mini-buffer"
is emtpy. Such a system would also make it possible to send
paste commands and cursor navigation to interactive bars.
Thirdly any system like this will probably not want to
operate through the co-routine system, because that makes
sending these commands to the "mini-buffer" much more
difficult.
Fourthly I desperately need some way to do multi-highlighting
multi-cursor showing but it is unclear to me how to do that
conveniently. Since this won't exist inside a coroutine
what does such an API even look like??? It's clear to me now
that I may need to start pushing for the view routine before
I am even able to support the GUI. Because that will the
system up to allow me to think about the problem in more ways.
Finally I have decided not to pursue this direction any more,
it just seems like the wrong way to do it, so I'll stop without
doing multi-cursor for now.
*/
CUSTOM_COMMAND_SIG(multi_line_edit){
Partition *part = &global_part;
View_Summary view = app->get_active_view(app, AccessOpen);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, AccessOpen);
Buffer_Rect rect = get_rect(&view);
int start_line = view.cursor.line;
int pos = view.cursor.character-1;
for (int i = rect.line0; i <= rect.line1; ++i){
pad_buffer_line(app, &global_part, &buffer, i, ' ', pos);
}
int line_count = rect.line1 - rect.line0 + 1;
for (;;){
User_Input in = app->get_user_input(app, EventOnAnyKey, EventOnEsc | EventOnButton);
if (in.abort) break;
if (in.key.character && key_is_unmodified(&in.key)){
char str = (char)in.key.character;
Temp_Memory temp = begin_temp_memory(part);
Buffer_Edit *edit = push_array(part, Buffer_Edit, line_count);
Buffer_Edit *edits = edit;
for (int i = rect.line0; i <= rect.line1; ++i){
Partial_Cursor cursor = {0};
if (app->buffer_compute_cursor(app, &buffer, seek_line_char(i, pos+1), &cursor)){
edit->str_start = 0;
edit->len = 1;
edit->start = cursor.pos;
edit->end = cursor.pos;
++edit;
}
}
int edit_count = (int)(edit - edits);
app->buffer_batch_edit(app, &buffer, &str, 1, edits, edit_count, BatchEdit_Normal);
end_temp_memory(temp);
++pos;
app->view_set_cursor(app, &view, seek_line_char(start_line, pos+1), true);
}
else if (in.key.keycode == key_back){
if (pos > 0){
Temp_Memory temp = begin_temp_memory(part);
Buffer_Edit *edit = push_array(part, Buffer_Edit, line_count);
Buffer_Edit *edits = edit;
for (int i = rect.line0; i <= rect.line1; ++i){
Partial_Cursor cursor = {0};
if (app->buffer_compute_cursor(app, &buffer, seek_line_char(i, pos+1), &cursor)){
edit->str_start = 0;
edit->len = 0;
edit->start = cursor.pos-1;
edit->end = cursor.pos;
++edit;
}
}
int edit_count = (int)(edit - edits);
app->buffer_batch_edit(app, &buffer, 0, 0, edits, edit_count, BatchEdit_Normal);
end_temp_memory(temp);
--pos;
}
}
else{
break;
}
}
}
// TODO(allen): Both of these brace related commands would work better
// if the API exposed access to the tokens in a code file.
CUSTOM_COMMAND_SIG(mark_matching_brace){
uint32_t access = AccessProtected;
View_Summary view = app->get_active_view(app, access);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, access);
int32_t start_pos = view.cursor.pos;
// NOTE(allen): The user provides the memory that the chunk uses,
// this chunk will then be filled at each step of the text stream loop.
// This way you can look for something that should be nearby without
// having to copy the whole file in at once.
Stream_Chunk chunk;
char chunk_space[(1 << 10)];
int32_t result = 0;
int32_t found_result = 0;
int32_t i = start_pos;
int32_t still_looping = 1;
int32_t nesting_counter = 0;
char at_cursor = 0;
if (init_stream_chunk(&chunk, app, &buffer, i,
chunk_space, sizeof(chunk_space))){
// NOTE(allen): This is important! The data array is a pointer that is adjusted
// so that indexing it with "i" will put it with the chunk that is actually loaded.
// If i goes below chunk.start or above chunk.end _that_ is an invalid access.
at_cursor = chunk.data[i];
if (at_cursor == '{'){
do{
for (++i; i < chunk.end; ++i){
at_cursor = chunk.data[i];
if (at_cursor == '{'){
++nesting_counter;
}
else if (at_cursor == '}'){
if (nesting_counter == 0){
found_result = 1;
result = i;
goto finished;
}
else{
--nesting_counter;
}
}
}
still_looping = forward_stream_chunk(&chunk);
}
while (still_looping);
}
else if (at_cursor == '}'){
do{
for (--i; i >= chunk.start; --i){
at_cursor = chunk.data[i];
if (at_cursor == '}'){
++nesting_counter;
}
else if (at_cursor == '{'){
if (nesting_counter == 0){
found_result = 1;
result = i;
goto finished;
}
else{
--nesting_counter;
}
}
}
still_looping = backward_stream_chunk(&chunk);
}
while (still_looping);
}
}
finished:
if (found_result){
app->view_set_mark(app, &view, seek_pos(result+1));
}
}
CUSTOM_COMMAND_SIG(cursor_to_surrounding_scope){
unsigned int access = AccessProtected;
View_Summary view = app->get_active_view(app, access);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, access);
int start_pos = view.cursor.pos - 1;
Stream_Chunk chunk;
char chunk_space[(1 << 10)];
int result = 0;
int found_result = 0;
int i = start_pos;
int still_looping = 1;
int nesting_counter = 0;
char at_cursor = 0;
if (init_stream_chunk(&chunk, app, &buffer, i, chunk_space, sizeof(chunk_space))){
do{
for (; i >= chunk.start; --i){
at_cursor = chunk.data[i];
if (at_cursor == '}'){
++nesting_counter;
}
else if (at_cursor == '{'){
if (nesting_counter == 0){
found_result = 1;
result = i;
goto finished;
}
else{
--nesting_counter;
}
}
}
still_looping = backward_stream_chunk(&chunk);
} while(still_looping);
}
finished:
if (found_result){
app->view_set_cursor(app, &view, seek_pos(result), 0);
}
}
// NOTE(allen): Some basic code manipulation ideas.
CUSTOM_COMMAND_SIG(rename_parameter){
uint32_t access = AccessOpen;
View_Summary view = app->get_active_view(app, access);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, access);
Partition *part = &global_part;
Temp_Memory temp = begin_temp_memory(part);
Cpp_Token_Array array = buffer_get_all_tokens(app, part, &buffer);
Cpp_Get_Token_Result result = cpp_get_token(&array, view.cursor.pos);
if (!result.in_whitespace && result.token_index < array.count){
Cpp_Token *token_ptr = &array.tokens[result.token_index];
Cpp_Token *token_end = array.tokens + array.count - 1;
if (token_ptr->type == CPP_TOKEN_IDENTIFIER){
char old_lexeme_base[128];
String old_lexeme = make_fixed_width_string(old_lexeme_base);
if (token_ptr->size < sizeof(old_lexeme_base)){
Cpp_Token original_token = *token_ptr;
old_lexeme.size = token_ptr->size;
app->buffer_read_range(app, &buffer, token_ptr->start,
token_ptr->start+token_ptr->size,
old_lexeme.str);
int32_t proc_body_found = 0;
for (++token_ptr; token_ptr < token_end; ++token_ptr){
switch (token_ptr->type){
case CPP_TOKEN_BRACE_OPEN:
{
proc_body_found = 1;
goto doublebreak;
}break;
case CPP_TOKEN_BRACE_CLOSE:
case CPP_TOKEN_PARENTHESE_OPEN:
{
goto doublebreak;
}break;
}
}
doublebreak:;
if (proc_body_found){
Query_Bar with;
char with_space[1024];
with.prompt = make_lit_string("New Name: ");
with.string = make_fixed_width_string(with_space);
if (!query_user_string(app, &with)) return;
String replace_string = with.string;
Cpp_Token *token_start_ptr = token_ptr+1;
Buffer_Edit *edits = (Buffer_Edit*)partition_current(part);
int32_t edit_max = (partition_remaining(part))/sizeof(Buffer_Edit);
int32_t edit_count = 0;
if (edit_max >= 1){
Buffer_Edit edit;
edit.str_start = 0;
edit.len = replace_string.size;
edit.start = original_token.start;
edit.end = original_token.start + original_token.size;
edits[edit_count] = edit;
++edit_count;
}
int32_t nesting_level = 0;
int32_t closed_correctly = 0;
token_ptr = token_start_ptr;
for (; token_ptr < token_end; ++token_ptr){
switch (token_ptr->type){
case CPP_TOKEN_IDENTIFIER:
{
if (token_ptr->size == old_lexeme.size){
char other_lexeme_base[128];
String other_lexeme = make_fixed_width_string(other_lexeme_base);
other_lexeme.size = old_lexeme.size;
app->buffer_read_range(app, &buffer, token_ptr->start,
token_ptr->start+token_ptr->size,
other_lexeme.str);
if (match(old_lexeme, other_lexeme)){
Buffer_Edit edit;
edit.str_start = 0;
edit.len = replace_string.size;
edit.start = token_ptr->start;
edit.end = token_ptr->start + token_ptr->size;
if (edit_count < edit_max){
edits[edit_count] = edit;
++edit_count;
}
else{
goto doublebreak2;
}
}
}
}break;
case CPP_TOKEN_BRACE_OPEN:
{
++nesting_level;
}break;
case CPP_TOKEN_BRACE_CLOSE:
{
if (nesting_level == 0){
closed_correctly = 1;
goto doublebreak2;
}
else{
--nesting_level;
}
}break;
}
}
doublebreak2:;
if (closed_correctly){
app->buffer_batch_edit(app, &buffer, replace_string.str, replace_string.size,
edits, edit_count, BatchEdit_Normal);
}
}
}
}
}
end_temp_memory(temp);
}
CUSTOM_COMMAND_SIG(write_explicit_enum_values){
uint32_t access = AccessOpen;
View_Summary view = app->get_active_view(app, access);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id, access);
Partition *part = &global_part;
Temp_Memory temp = begin_temp_memory(part);
Cpp_Token_Array array = buffer_get_all_tokens(app, part, &buffer);
Cpp_Get_Token_Result result = cpp_get_token(&array, view.cursor.pos);
if (!result.in_whitespace && result.token_index < array.count){
Cpp_Token *token_ptr = &array.tokens[result.token_index];
Cpp_Token *token_end = array.tokens + array.count;
if (token_ptr->type == CPP_TOKEN_BRACE_OPEN){
++token_ptr;
int32_t closed_correctly = 0;
Cpp_Token *token_seeker = token_ptr;
for (; token_seeker < token_end; ++token_seeker){
switch (token_seeker->type){
case CPP_TOKEN_BRACE_CLOSE:
closed_correctly = 1;
goto finished_seek;
case CPP_TOKEN_BRACE_OPEN:
goto finished_seek;
}
}
finished_seek:;
if (closed_correctly){
int32_t count_estimate = 1 + (int32_t)(token_seeker - token_ptr)/2;
Buffer_Edit *edits = push_array(part, Buffer_Edit, count_estimate);
int32_t edit_count = 0;
char *string_base = (char*)partition_current(part);
String string = make_string(string_base, 0, partition_remaining(part));
int32_t value = 0;
closed_correctly = 0;
for (;token_ptr < token_end; ++token_ptr){
switch (token_ptr->type){
case CPP_TOKEN_IDENTIFIER:
{
int32_t edit_start = token_ptr->start + token_ptr->size;
int32_t edit_stop = edit_start;
int32_t edit_is_good = 0;
for (++token_ptr; token_ptr < token_end; ++token_ptr){
switch (token_ptr->type){
case CPP_TOKEN_COMMA:
{
edit_stop = token_ptr->start;
edit_is_good = 1;
goto good_edit;
}break;
case CPP_TOKEN_BRACE_CLOSE:
{
edit_stop = token_ptr->start;
closed_correctly = 1;
edit_is_good = 1;
goto good_edit;
}break;
}
}
good_edit:;
if (edit_is_good){
int32_t str_pos = string.size;
append(&string, " = ");
append_int_to_str(&string, value);
if (closed_correctly){
append(&string, "\n");
}
++value;
int32_t str_size = string.size - str_pos;
Buffer_Edit edit;
edit.str_start = str_pos;
edit.len = str_size;
edit.start = edit_start;
edit.end = edit_stop;
assert(edit_count < count_estimate);
edits[edit_count] = edit;
++edit_count;
}
if (!edit_is_good || closed_correctly){
goto finished;
}
}break;
case CPP_TOKEN_BRACE_CLOSE:
{
closed_correctly = 1;
goto finished;
}break;
}
}
finished:;
if (closed_correctly){
app->buffer_batch_edit(app, &buffer, string_base, string.size,
edits, edit_count, BatchEdit_Normal);
}
}
}
}
end_temp_memory(temp);
}
// TODO(allen): Query theme settings
#if 0
CUSTOM_COMMAND_SIG(save_theme_settings){
FILE *file = fopen(".4coder_settings", "rb");
char theme_name[128];
char font_name[128];
fscanf(file, "%*128s %*128s", theme_name, font_name);
if (file){
replace_char(theme_name, '#', ' ');
replace_char(font_name, '#', ' ');
fclose(file);
app->change_theme(app, theme_name, strlen(theme_name));
app->change_font(app, font_name, strlen(font_name));
}
}
#endif
#include <stdio.h>
#define SETTINGS_FILE ".4coder_settings"
HOOK_SIG(experimental_start){
init_memory(app);
char theme_name[128];
char font_name[128];
FILE *file = fopen(SETTINGS_FILE, "rb");
if (!file){
char module_path[512];
int len = app->get_4ed_path(app, module_path, 448);
memcpy(module_path+len, SETTINGS_FILE, sizeof(SETTINGS_FILE));
file = fopen(module_path, "rb");
}
if (file){
fscanf(file, "%127s\n%127s", theme_name, font_name);
String theme = make_string_slowly(theme_name);
String font = make_string_slowly(font_name);
replace_char(&theme, '#', ' ');
replace_char(&font, '#', ' ');
fclose(file);
int theme_len = (int)strlen(theme_name);
int font_len = (int)strlen(font_name);
app->change_theme(app, theme_name, theme_len);
app->change_font(app, font_name, font_len, true);
exec_command(app, open_panel_vsplit);
exec_command(app, hide_scrollbar);
exec_command(app, change_active_panel);
exec_command(app, hide_scrollbar);
}
return(0);
}
extern "C" int
get_bindings(void *data, int size){
Bind_Helper context_ = begin_bind_helper(data, size);
Bind_Helper *context = &context_;
set_hook(context, hook_start, experimental_start);
set_open_file_hook(context, my_file_settings);
set_input_filter(context, my_suppress_mouse_filter);
set_command_caller(context, default_command_caller);
set_scroll_rule(context, smooth_scroll_rule);
default_keys(context);
// NOTE(allen|a4.0.6): Command maps can be opened more than
// once so that you can extend existing maps very easily.
// You can also use the helper "restart_map" instead of
// begin_map to clear everything that was in the map and
// bind new things instead.
begin_map(context, mapid_global);
end_map(context);
begin_map(context, mapid_file);
bind(context, 'k', MDFR_ALT, kill_rect);
bind(context, ' ', MDFR_ALT, multi_line_edit);
end_map(context);
begin_map(context, my_code_map);
bind(context, '[', MDFR_ALT, cursor_to_surrounding_scope);
bind(context, ']', MDFR_ALT, mark_matching_brace);
bind(context, key_insert, MDFR_CTRL, write_explicit_enum_values);
bind(context, 'p', MDFR_ALT, rename_parameter);
end_map(context);
BIND_4CODER_TESTS(context);
int result = end_bind_helper(context);
return(result);
}
// BOTTOM
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