4coder/4coder_jumping.cpp

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/*
4coder_jumping.cpp - Routines commonly used when writing code to jump to locations and seek through jump lists.
*/
// TOP
static bool32
ms_style_verify(String line, int32_t left_paren_pos, int32_t right_paren_pos){
int32_t result = false;
String line_part = substr_tail(line, right_paren_pos);
if (match_part_sc(line_part, ") : ")){
result = true;
}
else if (match_part_sc(line_part, "): ")){
result = true;
}
if (result){
String number = substr(line, left_paren_pos + 1, right_paren_pos - left_paren_pos - 2);
if (!str_is_int_s(number)){
result = false;
int32_t comma_pos = find_s_char(number, 0, ',');
if (comma_pos < number.size){
String sub_number0 = substr(number, 0, comma_pos);
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String sub_number1 = substr(number, comma_pos + 1, number.size - comma_pos - 1);
if (str_is_int_s(sub_number0) && str_is_int_s(sub_number1)){
result = true;
}
}
}
}
return(result);
}
static int32_t
try_skip_rust_arrow(String line){
int32_t pos = 0;
if (match_part(line, "-->")){
String sub = substr_tail(line, 3);
sub = skip_chop_whitespace(sub);
pos = (int32_t)(sub.str - line.str);
}
return(pos);
}
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static bool32
check_is_note(String line, int32_t colon_pos){
bool32 is_note = false;
int32_t note_pos = find_substr(line, colon_pos, make_lit_string("note"));
if (note_pos < line.size){
bool32 is_all_whitespace = true;
for (int32_t i = colon_pos; i < note_pos; i += 1){
if (!char_is_whitespace(line.str[i])){
is_all_whitespace = false;
break;
}
}
if (is_all_whitespace){
is_note = true;
}
}
return(is_note);
}
static bool32
parse_jump_location(String line, Name_Line_Column_Location *location, int32_t *colon_char, bool32 *is_sub_error){
bool32 result = false;
*is_sub_error = (line.str[0] == ' ');
int32_t whitespace_length = 0;
line = skip_chop_whitespace(line, &whitespace_length);
int32_t colon_pos = 0;
bool32 is_ms_style = false;
int32_t left_paren_pos = find_s_char(line, 0, '(');
int32_t right_paren_pos = find_s_char(line, left_paren_pos, ')');
while (!is_ms_style && right_paren_pos < line.size){
if (ms_style_verify(line, left_paren_pos, right_paren_pos)){
is_ms_style = true;
colon_pos = find_s_char(line, right_paren_pos, ':');
if (colon_pos < line.size){
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if (check_is_note(line, colon_pos)){
*is_sub_error = true;
}
String location_str = substr(line, 0, colon_pos);
location_str = skip_chop_whitespace(location_str);
int32_t close_pos = right_paren_pos;
int32_t open_pos = left_paren_pos;
if (0 < open_pos && open_pos < location_str.size){
String file = substr(location_str, 0, open_pos);
file = skip_chop_whitespace(file);
if (file.size > 0){
String line_number = substr(location_str,
open_pos+1,
close_pos-open_pos-1);
line_number = skip_chop_whitespace(line_number);
if (line_number.size > 0){
location->file = file;
int32_t comma_pos = find_s_char(line_number, 0, ',');
if (comma_pos < line_number.size){
int32_t start = comma_pos+1;
String column_number = substr(line_number, start, line_number.size-start);
line_number = substr(line_number, 0, comma_pos);
location->line = str_to_int_s(line_number);
location->column = str_to_int_s(column_number);
}
else{
location->line = str_to_int_s(line_number);
location->column = 1;
}
*colon_char = colon_pos + whitespace_length;
result = true;
}
}
}
}
}
else{
left_paren_pos = find_s_char(line, left_paren_pos + 1, '(');
right_paren_pos = find_s_char(line, left_paren_pos, ')');
}
}
if (!is_ms_style){
int32_t start = try_skip_rust_arrow(line);
int32_t colon_pos1 = find_s_char(line, start, ':');
if (line.size > colon_pos1 + 1){
if (char_is_slash(line.str[colon_pos1 + 1])){
colon_pos1 = find_s_char(line, colon_pos1 + 1, ':');
}
}
int32_t colon_pos2 = find_s_char(line, colon_pos1 + 1, ':');
int32_t colon_pos3 = find_s_char(line, colon_pos2 + 1, ':');
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if (colon_pos3 < line.size){
if (check_is_note(line, colon_pos3)){
*is_sub_error = true;
}
String filename = substr(line, start, colon_pos1 - start);
String line_number = substr(line, colon_pos1 + 1, colon_pos2 - colon_pos1 - 1);
String column_number = substr(line, colon_pos2 + 1, colon_pos3 - colon_pos2 - 1);
if (filename.size > 0 &&
line_number.size > 0 &&
column_number.size > 0){
location->file = filename;
location->line = str_to_int_s(line_number);
location->column = str_to_int_s(column_number);
*colon_char = colon_pos3 + whitespace_length;
result = true;
}
}
else{
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if (colon_pos2 < line.size){
if (check_is_note(line, colon_pos2)){
*is_sub_error = true;
}
String filename = substr(line, 0, colon_pos1);
String line_number = substr(line, colon_pos1 + 1, colon_pos2 - colon_pos1 - 1);
if (str_is_int_s(line_number)){
if (filename.size > 0 && line_number.size > 0){
location->file = filename;
location->line = str_to_int_s(line_number);
location->column = 0;
*colon_char = colon_pos2 + whitespace_length;
result = true;
}
}
}
}
}
if (!result){
*is_sub_error = false;
}
return(result);
}
static bool32
parse_jump_location(String line, bool32 skip_sub_error, Name_Line_Column_Location *location, int32_t *colon_char){
bool32 is_sub_error = false;
bool32 result = parse_jump_location(line, location, colon_char, &is_sub_error);
if (is_sub_error && skip_sub_error){
result = false;
}
return(result);
}
static int32_t
parse_jump_from_buffer_line(Application_Links *app, Partition *arena,
int32_t buffer_id, int32_t line,
bool32 skip_sub_errors, Name_Line_Column_Location *location){
int32_t result = false;
String line_str = {};
Buffer_Summary buffer = get_buffer(app, buffer_id, AccessAll);
if (read_line(app, arena, &buffer, line, &line_str)){
int32_t colon_char = 0;
if (parse_jump_location(line_str, skip_sub_errors, location, &colon_char)){
result = true;
}
}
return(result);
}
////////////////////////////////
static bool32
get_jump_buffer(Application_Links *app, Buffer_Summary *buffer, Name_Line_Column_Location *location){
bool32 result = open_file(app, buffer, location->file.str, location->file.size, false, true);
return(result);
}
static bool32
get_jump_buffer(Application_Links *app, Buffer_Summary *buffer, ID_Pos_Jump_Location *location){
*buffer = get_buffer(app, location->buffer_id, AccessAll);
bool32 result = false;
if (buffer->exists){
result = true;
}
return(result);
}
static void
switch_to_existing_view(Application_Links *app, View_Summary *view, Buffer_Summary *buffer){
if (!(view->exists && view->buffer_id == buffer->buffer_id)){
View_Summary existing_view = get_first_view_with_buffer(app, buffer->buffer_id);
if (existing_view.exists){
*view = existing_view;
}
}
}
static void
set_view_to_location(Application_Links *app, View_Summary *view, Buffer_Summary *buffer, Buffer_Seek seek){
if (view->buffer_id != buffer->buffer_id){
view_set_buffer(app, view, buffer->buffer_id, 0);
}
view_set_cursor(app, view, seek, true);
}
static void
jump_to_location(Application_Links *app, View_Summary *view, Buffer_Summary *buffer, Name_Line_Column_Location location){
set_active_view(app, view);
set_view_to_location(app, view, buffer, seek_line_char(location.line, location.column));
if (auto_center_after_jumps){
center_view(app);
}
}
static void
jump_to_location(Application_Links *app, View_Summary *view, Buffer_Summary *buffer, ID_Pos_Jump_Location location){
set_active_view(app, view);
set_view_to_location(app, view, buffer, seek_pos(location.pos));
if (auto_center_after_jumps){
center_view(app);
}
}
////////////////////////////////
static bool32
seek_next_jump_in_buffer(Application_Links *app, Partition *part,
int32_t buffer_id, int32_t first_line, bool32 skip_sub_errors,
int32_t direction,
int32_t *line_out, int32_t *colon_index_out, Name_Line_Column_Location *location_out){
Assert(direction == 1 || direction == -1);
bool32 result = false;
int32_t line = first_line;
String line_str = {};
Buffer_Summary buffer = get_buffer(app, buffer_id, AccessAll);
for (;;){
if (read_line(app, part, &buffer, line, &line_str)){
if (parse_jump_location(line_str, skip_sub_errors, location_out, colon_index_out)){
result = true;
break;
}
line += direction;
}
else{
break;
}
}
if (line < 0){
line = 0;
}
*line_out = line;
return(result);
}
static ID_Line_Column_Jump_Location
convert_name_based_to_id_based(Application_Links *app, Name_Line_Column_Location loc){
ID_Line_Column_Jump_Location result = {};
Buffer_Summary buffer = get_buffer_by_name(app, loc.file.str, loc.file.size, AccessAll);
if (buffer.exists){
result.buffer_id = buffer.buffer_id;
result.line = loc.line;
result.column = loc.column;
}
return(result);
}
static int32_t
seek_next_jump_in_view(Application_Links *app, Partition *part, View_Summary *view, int32_t skip_sub_errors, int32_t direction, int32_t *line_out, int32_t *colon_index_out, Name_Line_Column_Location *location_out){
int32_t result = false;
Name_Line_Column_Location location = {};
int32_t line = view->cursor.line;
int32_t colon_index = 0;
if (seek_next_jump_in_buffer(app, part, view->buffer_id, line+direction, skip_sub_errors, direction, &line, &colon_index, &location)){
result = true;
*line_out = line;
*colon_index_out = colon_index;
*location_out = location;
}
return(result);
}
static bool32
skip_this_jump(ID_Line_Column_Jump_Location prev, ID_Line_Column_Jump_Location jump){
bool32 result = false;
if (prev.buffer_id != 0 && prev.buffer_id == jump.buffer_id && prev.line == jump.line && prev.column <= jump.column){
result = true;
}
return(result);
}
static bool32
advance_cursor_in_jump_view(Application_Links *app, Partition *part, View_Summary *view, int32_t skip_repeats, int32_t skip_sub_error, int32_t direction, Name_Line_Column_Location *location_out){
bool32 result = true;
Name_Line_Column_Location location = {};
ID_Line_Column_Jump_Location jump = {};
int32_t line = 0;
int32_t colon_index = 0;
do{
Temp_Memory temp = begin_temp_memory(part);
if (seek_next_jump_in_view(app, part, view, skip_sub_error, direction, &line, &colon_index, &location)){
jump = convert_name_based_to_id_based(app, location);
view_set_cursor(app, view, seek_line_char(line, colon_index+1), true);
result = true;
}
else{
jump.buffer_id = 0;
result = false;
}
end_temp_memory(temp);
}while(skip_repeats && skip_this_jump(prev_location, jump));
if (result){
*location_out = location;
view_set_cursor(app, view, seek_line_char(line, colon_index + 1), true);
}
prev_location = jump;
return(result);
}
static bool32
seek_jump(Application_Links *app, Partition *part, bool32 skip_repeats, bool32 skip_sub_errors, int32_t direction){
bool32 result = false;
View_Summary view = get_view_for_locked_jump_buffer(app);
if (view.exists){
Name_Line_Column_Location location = {};
if (advance_cursor_in_jump_view(app, &global_part, &view, skip_repeats, skip_sub_errors, direction, &location)){
Buffer_Summary buffer = {};
if (get_jump_buffer(app, &buffer, &location)){
View_Summary target_view = get_active_view(app, AccessAll);
if (target_view.view_id == view.view_id){
change_active_panel(app);
target_view = get_active_view(app, AccessAll);
}
switch_to_existing_view(app, &target_view, &buffer);
jump_to_location(app, &target_view, &buffer, location);
result = true;
}
}
}
return(result);
}
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////////////////////////////////
#if defined(USE_OLD_STYLE_JUMPS)
#define goto_jump_at_cursor CUSTOM_ALIAS(goto_jump_at_cursor_direct)
#define goto_jump_at_cursor_same_panel CUSTOM_ALIAS(goto_jump_at_cursor_same_panel_direct)
#define goto_next_jump CUSTOM_ALIAS(goto_next_jump_direct)
#define goto_prev_jump CUSTOM_ALIAS(goto_prev_jump_direct)
#define goto_next_jump_no_skips CUSTOM_ALIAS(goto_next_jump_no_skips_direct)
#define goto_prev_jump_no_skips CUSTOM_ALIAS(goto_prev_jump_no_skips_direct)
#define goto_first_jump CUSTOM_ALIAS(goto_first_jump_direct)
#define newline_or_goto_position CUSTOM_ALIAS(newline_or_goto_position_direct)
#define newline_or_goto_position_same_panel CUSTOM_ALIAS(newline_or_goto_position_same_panel_direct)
#else
#define goto_jump_at_cursor CUSTOM_ALIAS(goto_jump_at_cursor_sticky)
#define goto_jump_at_cursor_same_panel CUSTOM_ALIAS(goto_jump_at_cursor_same_panel_sticky)
#define goto_next_jump CUSTOM_ALIAS(goto_next_jump_sticky)
#define goto_prev_jump CUSTOM_ALIAS(goto_prev_jump_sticky)
#define goto_next_jump_no_skips CUSTOM_ALIAS(goto_next_jump_no_skips_sticky)
#define goto_prev_jump_no_skips CUSTOM_ALIAS(goto_prev_jump_no_skips_sticky)
#define goto_first_jump CUSTOM_ALIAS(goto_first_jump_sticky)
#define newline_or_goto_position CUSTOM_ALIAS(newline_or_goto_position_sticky)
#define newline_or_goto_position_same_panel CUSTOM_ALIAS(newline_or_goto_position_same_panel_sticky)
#endif
#define seek_error CUSTOM_ALIAS(seek_jump)
#define goto_next_error CUSTOM_ALIAS(goto_next_jump)
#define goto_prev_error CUSTOM_ALIAS(goto_prev_jump)
#define goto_next_error_no_skips CUSTOM_ALIAS(goto_next_jump_no_skips)
#define goto_prev_error_no_skips CUSTOM_ALIAS(goto_prev_jump_no_skips)
#define goto_first_error CUSTOM_ALIAS(goto_first_jump)
// BOTTOM