424 lines
15 KiB
C++
424 lines
15 KiB
C++
/*
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4coder_jumping.cpp - Routines commonly used when writing code to jump to locations and seek through jump lists.
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*/
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// TOP
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static b32
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ms_style_verify(String line, i32 left_paren_pos, i32 right_paren_pos){
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i32 result = false;
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String line_part = substr_tail(line, right_paren_pos);
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if (match_part_sc(line_part, ") : ")){
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result = true;
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}
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else if (match_part_sc(line_part, "): ")){
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result = true;
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}
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if (result){
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String number = substr(line, left_paren_pos + 1, right_paren_pos - left_paren_pos - 2);
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if (!str_is_int_s(number)){
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result = false;
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i32 comma_pos = find_s_char(number, 0, ',');
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if (comma_pos < number.size){
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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);
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if (str_is_int_s(sub_number0) && str_is_int_s(sub_number1)){
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result = true;
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}
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}
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}
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}
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return(result);
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}
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static i32
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try_skip_rust_arrow(String line){
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i32 pos = 0;
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if (match_part(line, "-->")){
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String sub = substr_tail(line, 3);
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sub = skip_chop_whitespace(sub);
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pos = (i32)(sub.str - line.str);
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}
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return(pos);
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}
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static b32
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check_is_note(String line, i32 colon_pos){
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b32 is_note = false;
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i32 note_pos = find_substr(line, colon_pos, make_lit_string("note"));
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if (note_pos < line.size){
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b32 is_all_whitespace = true;
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for (i32 i = colon_pos + 1; i < note_pos; i += 1){
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if (!char_is_whitespace(line.str[i])){
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is_all_whitespace = false;
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break;
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}
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}
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if (is_all_whitespace){
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is_note = true;
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}
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}
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return(is_note);
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}
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static Parsed_Jump
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parse_jump_location(String line){
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Parsed_Jump jump = {};
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jump.sub_jump_indented = (line.str[0] == ' ');
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i32 whitespace_length = 0;
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line = skip_chop_whitespace(line, &whitespace_length);
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i32 left_paren_pos = find_s_char(line, 0, '(');
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i32 right_paren_pos = find_s_char(line, left_paren_pos, ')');
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for (;!jump.is_ms_style && right_paren_pos < line.size;){
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if (ms_style_verify(line, left_paren_pos, right_paren_pos)){
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jump.is_ms_style = true;
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jump.colon_position = find_s_char(line, right_paren_pos, ':');
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if (jump.colon_position < line.size){
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if (check_is_note(line, jump.colon_position)){
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jump.sub_jump_note = true;
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}
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String location_str = substr(line, 0, jump.colon_position);
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location_str = skip_chop_whitespace(location_str);
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i32 close_pos = right_paren_pos;
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i32 open_pos = left_paren_pos;
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if (0 < open_pos && open_pos < location_str.size){
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String file = substr(location_str, 0, open_pos);
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file = skip_chop_whitespace(file);
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if (file.size > 0){
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String line_number = substr(location_str, open_pos + 1, close_pos-open_pos - 1);
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line_number = skip_chop_whitespace(line_number);
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if (line_number.size > 0){
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i32 comma_pos = find_s_char(line_number, 0, ',');
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if (comma_pos < line_number.size){
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i32 start = comma_pos + 1;
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String column_number = substr(line_number, start, line_number.size-start);
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line_number = substr(line_number, 0, comma_pos);
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jump.location.line = str_to_int_s(line_number);
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jump.location.column = str_to_int_s(column_number);
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}
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else{
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jump.location.line = str_to_int_s(line_number);
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jump.location.column = 0;
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}
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jump.location.file = file;
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jump.colon_position = jump.colon_position + whitespace_length;
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jump.success = true;
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}
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}
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}
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}
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}
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else{
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left_paren_pos = find_s_char(line, left_paren_pos + 1, '(');
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right_paren_pos = find_s_char(line, left_paren_pos, ')');
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}
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}
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if (!jump.is_ms_style){
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i32 start = try_skip_rust_arrow(line);
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if (start != 0){
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jump.has_rust_arrow = true;
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}
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i32 colon_pos1 = find_s_char(line, start, ':');
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if (line.size > colon_pos1 + 1){
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if (char_is_slash(line.str[colon_pos1 + 1])){
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colon_pos1 = find_s_char(line, colon_pos1 + 1, ':');
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}
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}
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i32 colon_pos2 = find_s_char(line, colon_pos1 + 1, ':');
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i32 colon_pos3 = find_s_char(line, colon_pos2 + 1, ':');
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if (colon_pos3 < line.size){
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if (check_is_note(line, colon_pos3)){
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jump.sub_jump_note = true;
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}
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String filename = substr(line, start, colon_pos1 - start);
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String line_number = substr(line, colon_pos1 + 1, colon_pos2 - colon_pos1 - 1);
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String column_number = substr(line, colon_pos2 + 1, colon_pos3 - colon_pos2 - 1);
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if (filename.size > 0 &&
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line_number.size > 0 &&
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column_number.size > 0){
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jump.location.file = filename;
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jump.location.line = str_to_int_s(line_number);
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jump.location.column = str_to_int_s(column_number);
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jump.colon_position = colon_pos3 + whitespace_length;
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jump.success = true;
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}
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}
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else{
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if (colon_pos2 < line.size){
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if (check_is_note(line, colon_pos2)){
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jump.sub_jump_note = true;
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}
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String filename = substr(line, 0, colon_pos1);
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String line_number = substr(line, colon_pos1 + 1, colon_pos2 - colon_pos1 - 1);
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if (str_is_int_s(line_number)){
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if (filename.size > 0 && line_number.size > 0){
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jump.location.file = filename;
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jump.location.line = str_to_int_s(line_number);
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jump.location.column = 0;
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jump.colon_position = colon_pos3 + whitespace_length;
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jump.success = true;
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}
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}
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}
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}
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}
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if (!jump.success){
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memset(&jump, 0, sizeof(jump));
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}
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else{
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jump.is_sub_jump = (jump.sub_jump_indented || jump.sub_jump_note);
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}
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return(jump);
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}
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static Parsed_Jump
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parse_jump_location(String line, b32 skip_sub_jump){
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Parsed_Jump jump = parse_jump_location(line);
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if (jump.is_sub_jump && skip_sub_jump){
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memset(&jump, 0, sizeof(jump));
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}
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return(jump);
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}
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static Parsed_Jump
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parse_jump_from_buffer_line(Application_Links *app, Partition *arena, Buffer_ID buffer_id, i32 line, b32 skip_sub_errors){
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Parsed_Jump jump = {};
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String line_str = {};
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if (read_line(app, arena, buffer_id, line, &line_str)){
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jump = parse_jump_location(line_str, skip_sub_errors);
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}
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return(jump);
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}
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////////////////////////////////
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static b32
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get_jump_buffer(Application_Links *app, Buffer_ID *buffer, Name_Line_Column_Location *location){
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return(open_file(app, buffer, location->file.str, location->file.size, false, true));
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}
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static b32
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get_jump_buffer(Application_Links *app, Buffer_ID *buffer, ID_Pos_Jump_Location *location, Access_Flag access){
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*buffer = location->buffer_id;
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return(buffer_exists(app, *buffer));
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}
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static b32
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get_jump_buffer(Application_Links *app, Buffer_ID *buffer, ID_Pos_Jump_Location *location){
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return(get_jump_buffer(app, buffer, location, AccessAll));
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}
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static void
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switch_to_existing_view(Application_Links *app, View_Summary *view, Buffer_ID buffer){
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if (!view->exists || view->buffer_id != buffer){
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View_Summary existing_view = get_first_view_with_buffer(app, buffer);
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if (existing_view.exists){
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*view = existing_view;
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}
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}
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}
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static void
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set_view_to_location(Application_Links *app, View_Summary *view, Buffer_ID buffer, Buffer_Seek seek){
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if (view->buffer_id != buffer){
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view_set_buffer(app, view, buffer, 0);
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}
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view_set_cursor(app, view, seek, true);
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}
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static void
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jump_to_location(Application_Links *app, View_Summary *view, Buffer_ID buffer, Name_Line_Column_Location location){
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set_active_view(app, view);
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set_view_to_location(app, view, buffer, seek_line_char(location.line, location.column));
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if (auto_center_after_jumps){
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center_view(app);
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}
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}
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static void
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jump_to_location(Application_Links *app, View_Summary *view, Buffer_ID buffer, ID_Pos_Jump_Location location){
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set_active_view(app, view);
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set_view_to_location(app, view, buffer, seek_pos(location.pos));
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if (auto_center_after_jumps){
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center_view(app);
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}
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}
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////////////////////////////////
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static Parsed_Jump
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seek_next_jump_in_buffer(Application_Links *app, Partition *part,
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i32 buffer_id, i32 first_line, b32 skip_sub_errors, i32 direction,
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i32 *line_out){
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Assert(direction == 1 || direction == -1);
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Parsed_Jump jump = {};
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i32 line = first_line;
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String line_str = {};
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for (;;){
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if (read_line(app, part, buffer_id, line, &line_str)){
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jump = parse_jump_location(line_str, skip_sub_errors);
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if (jump.success){
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break;
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}
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line += direction;
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}
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else{
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break;
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}
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}
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if (line < 0){
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line = 0;
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}
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if (jump.success){
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*line_out = line;
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}
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return(jump);
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}
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static ID_Line_Column_Jump_Location
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convert_name_based_to_id_based(Application_Links *app, Name_Line_Column_Location loc){
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ID_Line_Column_Jump_Location result = {};
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Buffer_Summary buffer = get_buffer_by_name(app, loc.file.str, loc.file.size, AccessAll);
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if (buffer.exists){
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result.buffer_id = buffer.buffer_id;
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result.line = loc.line;
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result.column = loc.column;
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}
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return(result);
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}
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static Parsed_Jump
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seek_next_jump_in_view(Application_Links *app, Partition *part, View_Summary *view, i32 skip_sub_errors, i32 direction, i32 *line_out){
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Parsed_Jump jump = {};
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i32 line = view->cursor.line;
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jump = seek_next_jump_in_buffer(app, part, view->buffer_id, line + direction, skip_sub_errors, direction, &line);
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if (jump.success){
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*line_out = line;
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}
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return(jump);
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}
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static b32
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skip_this_jump(ID_Line_Column_Jump_Location prev, ID_Line_Column_Jump_Location jump){
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b32 result = false;
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if (prev.buffer_id != 0 && prev.buffer_id == jump.buffer_id && prev.line == jump.line && prev.column <= jump.column){
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result = true;
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}
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return(result);
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}
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static b32
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advance_cursor_in_jump_view(Application_Links *app, Partition *part, View_Summary *view, i32 skip_repeats, i32 skip_sub_error, i32 direction, Name_Line_Column_Location *location_out){
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b32 result = true;
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Name_Line_Column_Location location = {};
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ID_Line_Column_Jump_Location jump = {};
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i32 line = 0;
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i32 colon_index = 0;
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do{
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Temp_Memory temp = begin_temp_memory(part);
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Parsed_Jump parsed_jump = seek_next_jump_in_view(app, part, view, skip_sub_error, direction, &line);
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if (parsed_jump.success){
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jump = convert_name_based_to_id_based(app, parsed_jump.location);
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view_set_cursor(app, view, seek_line_char(line, parsed_jump.colon_position + 1), true);
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result = true;
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}
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else{
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jump.buffer_id = 0;
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result = false;
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}
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end_temp_memory(temp);
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}while(skip_repeats && skip_this_jump(prev_location, jump));
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if (result){
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*location_out = location;
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view_set_cursor(app, view, seek_line_char(line, colon_index + 1), true);
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}
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prev_location = jump;
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return(result);
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}
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static b32
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seek_jump(Application_Links *app, Partition *part, b32 skip_repeats, b32 skip_sub_errors, i32 direction){
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b32 result = false;
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View_Summary view = get_view_for_locked_jump_buffer(app);
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if (view.exists){
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Name_Line_Column_Location location = {};
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if (advance_cursor_in_jump_view(app, &global_part, &view, skip_repeats, skip_sub_errors, direction, &location)){
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Buffer_ID buffer = {};
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if (get_jump_buffer(app, &buffer, &location)){
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View_Summary target_view = get_active_view(app, AccessAll);
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if (target_view.view_id == view.view_id){
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change_active_panel(app);
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target_view = get_active_view(app, AccessAll);
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}
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switch_to_existing_view(app, &target_view, buffer);
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jump_to_location(app, &target_view, buffer, location);
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result = true;
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}
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}
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}
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return(result);
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}
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////////////////////////////////
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#if defined(USE_OLD_STYLE_JUMPS)
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#define goto_jump_at_cursor CUSTOM_ALIAS(goto_jump_at_cursor_direct)
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#define goto_jump_at_cursor_same_panel CUSTOM_ALIAS(goto_jump_at_cursor_same_panel_direct)
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#define goto_next_jump CUSTOM_ALIAS(goto_next_jump_direct)
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#define goto_prev_jump CUSTOM_ALIAS(goto_prev_jump_direct)
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#define goto_next_jump_no_skips CUSTOM_ALIAS(goto_next_jump_no_skips_direct)
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#define goto_prev_jump_no_skips CUSTOM_ALIAS(goto_prev_jump_no_skips_direct)
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#define goto_first_jump CUSTOM_ALIAS(goto_first_jump_direct)
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#define newline_or_goto_position CUSTOM_ALIAS(newline_or_goto_position_direct)
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#define newline_or_goto_position_same_panel CUSTOM_ALIAS(newline_or_goto_position_same_panel_direct)
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#else
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#define goto_jump_at_cursor CUSTOM_ALIAS(goto_jump_at_cursor_sticky)
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#define goto_jump_at_cursor_same_panel CUSTOM_ALIAS(goto_jump_at_cursor_same_panel_sticky)
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#define goto_next_jump CUSTOM_ALIAS(goto_next_jump_sticky)
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#define goto_prev_jump CUSTOM_ALIAS(goto_prev_jump_sticky)
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#define goto_next_jump_no_skips CUSTOM_ALIAS(goto_next_jump_no_skips_sticky)
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#define goto_prev_jump_no_skips CUSTOM_ALIAS(goto_prev_jump_no_skips_sticky)
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#define goto_first_jump CUSTOM_ALIAS(goto_first_jump_sticky)
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#define newline_or_goto_position CUSTOM_ALIAS(newline_or_goto_position_sticky)
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#define newline_or_goto_position_same_panel CUSTOM_ALIAS(newline_or_goto_position_same_panel_sticky)
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#endif
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#define seek_error CUSTOM_ALIAS(seek_jump)
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#define goto_next_error CUSTOM_ALIAS(goto_next_jump)
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#define goto_prev_error CUSTOM_ALIAS(goto_prev_jump)
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#define goto_next_error_no_skips CUSTOM_ALIAS(goto_next_jump_no_skips)
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#define goto_prev_error_no_skips CUSTOM_ALIAS(goto_prev_jump_no_skips)
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#define goto_first_error CUSTOM_ALIAS(goto_first_jump)
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// BOTTOM
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