/* * Miscellaneous helpers for common operations. */ // TOP static Binding_Unit* write_unit(Bind_Helper *helper, Binding_Unit unit){ Binding_Unit *p = 0; helper->write_total += sizeof(*p); if (helper->error == 0 && helper->cursor != helper->end){ p = helper->cursor++; *p = unit; } return p; } static Bind_Helper begin_bind_helper(void *data, i32 size){ Bind_Helper result = {}; result.cursor = (Binding_Unit*)data; result.start = result.cursor; result.end = result.start + size / sizeof(*result.cursor); Binding_Unit unit = {}; unit.type = unit_header; unit.header.total_size = sizeof(*result.header); result.header = write_unit(&result, unit); result.header->header.user_map_count = 0; return(result); } static void begin_map(Bind_Helper *helper, i32 mapid, b32 replace){ if (helper->group != 0 && helper->error == 0){ helper->error = BH_ERR_MISSING_END; } if (!helper->error && mapid < mapid_global){ ++helper->header->header.user_map_count; } Binding_Unit unit; unit.type = unit_map_begin; unit.map_begin.mapid = mapid; unit.map_begin.replace = replace; helper->group = write_unit(helper, unit); helper->group->map_begin.bind_count = 0; } static void begin_map(Bind_Helper *helper, i32 mapid){ begin_map(helper, mapid, false); } static void restart_map(Bind_Helper *helper, i32 mapid){ begin_map(helper, mapid, true); } static void end_map(Bind_Helper *helper){ if (helper->group == 0 && helper->error == 0){ helper->error = BH_ERR_MISSING_BEGIN; } helper->group = 0; } static void bind(Bind_Helper *helper, Key_Code code, uint8_t modifiers, Custom_Command_Function *func){ if (helper->group == 0 && helper->error == 0){ helper->error = BH_ERR_MISSING_BEGIN; } if (!helper->error){ ++helper->group->map_begin.bind_count; } Binding_Unit unit; unit.type = unit_callback; unit.callback.func = func; unit.callback.code = code; unit.callback.modifiers = modifiers; write_unit(helper, unit); } static void bind(Bind_Helper *helper, Key_Code code, uint8_t modifiers, Generic_Command cmd){ bind(helper, code, modifiers, cmd.command); } static void bind_vanilla_keys(Bind_Helper *helper, Custom_Command_Function *func){ bind(helper, 0, 0, func); } static void bind_vanilla_keys(Bind_Helper *helper, unsigned char modifiers, Custom_Command_Function *func){ bind(helper, 0, modifiers, func); } static void inherit_map(Bind_Helper *helper, i32 mapid){ if (helper->group == 0 && helper->error == 0) helper->error = BH_ERR_MISSING_BEGIN; if (!helper->error && mapid < mapid_global) ++helper->header->header.user_map_count; Binding_Unit unit = {}; unit.type = unit_inherit; unit.map_inherit.mapid = mapid; write_unit(helper, unit); } static void set_hook(Bind_Helper *helper, i32 hook_id, Hook_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = hook_id; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_scroll_rule(Bind_Helper *helper, Scroll_Rule_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_scroll_rule; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_buffer_name_resolver(Bind_Helper *helper, Buffer_Name_Resolver_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_buffer_name_resolver; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_modify_color_table_hook(Bind_Helper *helper, Modify_Color_Table_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_modify_color_table; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_clipboard_change_hook(Bind_Helper *helper, Clipboard_Change_Hook_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_clipboard_change; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_get_view_buffer_region_hook(Bind_Helper *helper, Get_View_Buffer_Region_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_get_view_buffer_region; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_new_file_hook(Bind_Helper *helper, Open_File_Hook_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_new_file; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_start_hook(Bind_Helper *helper, Start_Hook_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_start; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_open_file_hook(Bind_Helper *helper, Open_File_Hook_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_open_file; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_save_file_hook(Bind_Helper *helper, Open_File_Hook_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_save_file; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_end_file_hook(Bind_Helper *helper, Open_File_Hook_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_end_file; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_file_edit_range_hook(Bind_Helper *helper, File_Edit_Range_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_file_edit_range; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_file_edit_finished_hook(Bind_Helper *helper, File_Edit_Finished_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_file_edit_finished; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_command_caller(Bind_Helper *helper, Command_Caller_Hook_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_command_caller; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_render_caller(Bind_Helper *helper, Render_Caller_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_render_caller; unit.hook.func = (void*)func; write_unit(helper, unit); } static void set_input_filter(Bind_Helper *helper, Input_Filter_Function *func){ Binding_Unit unit = {}; unit.type = unit_hook; unit.hook.hook_id = special_hook_input_filter; unit.hook.func = (void*)func; write_unit(helper, unit); } static i32 end_bind_helper(Bind_Helper *helper){ if (helper->header){ helper->header->header.total_size = (i32)(helper->cursor - helper->start); helper->header->header.error = helper->error; } i32 result = helper->write_total; return(result); } static Bind_Buffer end_bind_helper_get_buffer(Bind_Helper *helper){ i32 size = end_bind_helper(helper); Bind_Buffer result = {}; result.data = helper->start; result.size = size; return(result); } static u32 get_key_code(char *buffer){ u32 ignore; u32 result = utf8_to_u32_length_unchecked((u8*)buffer, &ignore); return(result); } //////////////////////////////// internal Character_Predicate character_predicate_from_function(Character_Predicate_Function *func){ Character_Predicate predicate = {}; i32 byte_index = 0; for (u32 i = 0; i <= 255;){ b8 v[8]; for (i32 bit_index = 0; bit_index < 8; i += 1, bit_index += 1){ v[bit_index] = func((u8)i); } predicate.b[byte_index] = ( (v[0] << 0) | (v[1] << 1) | (v[2] << 2) | (v[3] << 3) | (v[4] << 4) | (v[5] << 5) | (v[6] << 6) | (v[7] << 7) ); byte_index += 1; } return(predicate); } internal Character_Predicate character_predicate_from_character(u8 character){ Character_Predicate predicate = {}; predicate.b[character/8] = (1 << (character%8)); return(predicate); } #define character_predicate_check_character(p, c) (((p).b[(c)/8] & (1 << ((c)%8))) != 0) internal Character_Predicate character_predicate_or(Character_Predicate *a, Character_Predicate *b){ Character_Predicate p = {}; for (i32 i = 0; i < ArrayCount(p.b); i += 1){ p.b[i] = a->b[i] | b->b[i]; } return(p); } internal Character_Predicate character_predicate_and(Character_Predicate *a, Character_Predicate *b){ Character_Predicate p = {}; for (i32 i = 0; i < ArrayCount(p.b); i += 1){ p.b[i] = a->b[i] & b->b[i]; } return(p); } internal Character_Predicate character_predicate_not(Character_Predicate *a){ Character_Predicate p = {}; for (i32 i = 0; i < ArrayCount(p.b); i += 1){ p.b[i] = ~(a->b[i]); } return(p); } internal i32 buffer_seek_character_class_change__inner(Application_Links *app, Buffer_ID buffer, Character_Predicate *positive, Character_Predicate *negative, Scan_Direction direction, i32 start_pos){ i32 pos = start_pos; switch (direction){ case Scan_Backward: { b32 s1 = buffer_seek_character_class(app, buffer, negative, direction, pos, &pos); b32 s2 = buffer_seek_character_class(app, buffer, positive, direction, pos, &pos); if (s1 && s2){ pos += 1; } }break; case Scan_Forward: { pos -= 1; buffer_seek_character_class(app, buffer, positive, direction, pos, &pos); buffer_seek_character_class(app, buffer, negative, direction, pos, &pos); }break; } return(pos); } internal i32 buffer_seek_character_class_change_1_0(Application_Links *app, Buffer_ID buffer, Character_Predicate *predicate, Scan_Direction direction, i32 start_pos){ Character_Predicate negative = character_predicate_not(predicate); return(buffer_seek_character_class_change__inner(app, buffer, predicate, &negative, direction, start_pos)); } internal i32 buffer_seek_character_class_change_0_1(Application_Links *app, Buffer_ID buffer, Character_Predicate *predicate, Scan_Direction direction, i32 start_pos){ Character_Predicate negative = character_predicate_not(predicate); return(buffer_seek_character_class_change__inner(app, buffer, &negative, predicate, direction, start_pos)); } //////////////////////////////// static String_Const_u8 push_hot_directory(Application_Links *app, Arena *arena){ String_Const_u8 result = {}; get_hot_directory(app, arena, &result); return(result); } static String_Const_u8 push_4ed_path(Application_Links *app, Arena *arena){ String_Const_u8 result = {}; get_4ed_path(app, arena, &result); return(result); } static String_Const_u8 push_buffer_base_name(Application_Links *app, Arena *arena, Buffer_ID buffer){ String_Const_u8 result = {}; buffer_get_base_buffer_name(app, buffer, arena, &result); return(result); } static String_Const_u8 push_buffer_unique_name(Application_Links *app, Arena *arena, Buffer_ID buffer){ String_Const_u8 result = {}; buffer_get_unique_buffer_name(app, buffer, arena, &result); return(result); } static String_Const_u8 push_buffer_file_name(Application_Links *app, Arena *arena, Buffer_ID buffer){ String_Const_u8 result = {}; buffer_get_file_name(app, buffer, arena, &result); return(result); } //////////////////////////////// static Range get_view_range(Application_Links *app, View_ID view){ Range range = {}; view_get_cursor_pos(app, view, &range.first); view_get_mark_pos(app, view, &range.one_past_last); return(rectify(range)); } static f32 get_view_y(Application_Links *app, View_ID view){ i32 pos = 0; view_get_cursor_pos(app, view, &pos); Full_Cursor cursor = {}; view_compute_cursor(app, view, seek_pos(pos), &cursor); return(cursor.wrapped_y); } static f32 get_view_x(Application_Links *app, View_ID view){ i32 pos = 0; view_get_cursor_pos(app, view, &pos); Full_Cursor cursor = {}; view_compute_cursor(app, view, seek_pos(pos), &cursor); return(cursor.wrapped_x); } static b32 is_valid_line(Application_Links *app, Buffer_ID buffer_id, i32 line){ i32 max_line = 0; buffer_get_line_count(app, buffer_id, &max_line); return(1 <= line && line <= max_line); } static b32 is_valid_line_range(Application_Links *app, Buffer_ID buffer_id, Range range){ i32 max_line = 0; buffer_get_line_count(app, buffer_id, &max_line); return(1 <= range.first && range.first <= range.end && range.end <= max_line); } static i32 get_line_number_from_pos(Application_Links *app, Buffer_ID buffer, i32 pos){ Partial_Cursor partial_cursor = {}; buffer_compute_cursor(app, buffer, seek_pos(pos), &partial_cursor); return(partial_cursor.line); } static i32 character_pos_to_pos_view(Application_Links *app, View_ID view, i32 character_pos){ i32 result = 0; Full_Cursor cursor = {}; if (view_compute_cursor(app, view, seek_character_pos(character_pos), &cursor)){ result = cursor.pos; } return(result); } static i32 character_pos_to_pos_buffer(Application_Links *app, Buffer_ID buffer, i32 character_pos){ i32 result = 0; Partial_Cursor cursor = {}; if (buffer_compute_cursor(app, buffer, seek_character_pos(character_pos), &cursor)){ result = cursor.pos; } return(result); } static Partial_Cursor get_line_side(Application_Links *app, Buffer_ID buffer, i32 line_number, Side side){ Partial_Cursor result = {}; i32 character_index = (side == Side_Min)?(1):(-1); if (!buffer_compute_cursor(app, buffer, seek_line_char(line_number, character_index), &result)){ block_zero_struct(&result); } return(result); } static i32 get_line_side_pos(Application_Links *app, Buffer_ID buffer, i32 line_number, Side side){ i32 pos = -1; Partial_Cursor partial_cursor = get_line_side(app, buffer, line_number, side); if (partial_cursor.line != 0){ pos = partial_cursor.pos; } return(pos); } static Partial_Cursor get_line_start(Application_Links *app, Buffer_ID buffer, i32 line_number){ return(get_line_side(app, buffer, line_number, Side_Min)); } static i32 get_line_start_pos(Application_Links *app, Buffer_ID buffer, i32 line_number){ return(get_line_side_pos(app, buffer, line_number, Side_Min)); } // NOTE(allen): The position returned has the index of the terminating newline character, // not one past the newline character. static Partial_Cursor get_line_end(Application_Links *app, Buffer_ID buffer, i32 line_number){ return(get_line_side(app, buffer, line_number, Side_Max)); } static i32 get_line_end_pos(Application_Links *app, Buffer_ID buffer, i32 line_number){ return(get_line_side_pos(app, buffer, line_number, Side_Max)); } static i32 get_line_pos(Application_Links *app, Buffer_ID buffer, i32 line_number, Side side){ i32 result = 0; if (side == Side_Min){ result = get_line_start_pos(app, buffer, line_number); } else{ result = get_line_start_pos(app, buffer, line_number); } } // NOTE(allen): The range returned does not include the terminating newline character static Range_Partial_Cursor get_line_range(Application_Links *app, Buffer_ID buffer, i32 line_number){ b32 success = false; Range_Partial_Cursor result = {}; result.begin = get_line_start(app, buffer, line_number); if (result.begin.line != 0){ result.end = get_line_end(app, buffer, line_number); if (result.end.line != 0){ success = true; } } if (!success){ block_zero_struct(&result); } return(result); } // NOTE(allen): The range returned does not include the terminating newline character static Range get_line_pos_range(Application_Links *app, Buffer_ID buffer, i32 line_number){ Range_Partial_Cursor range = get_line_range(app, buffer, line_number); Range result = {}; if (range.begin.line != 0 && range.end.line != 0){ result = make_range(range.begin.pos, range.end.pos); } return(result); } static Range make_range_from_cursors(Range_Partial_Cursor range){ return(make_range(range.begin.pos, range.end.pos)); } static i32 get_line_side_pos_from_pos(Application_Links *app, Buffer_ID buffer, i32 pos, Side side){ i32 line_number = get_line_number_from_pos(app, buffer, pos); return(get_line_side_pos(app, buffer, line_number, side)); } static i32 get_line_start_pos_from_pos(Application_Links *app, Buffer_ID buffer, i32 pos){ return(get_line_side_pos_from_pos(app, buffer, pos, Side_Min)); } static i32 get_line_end_pos_from_pos(Application_Links *app, Buffer_ID buffer, i32 pos){ return(get_line_side_pos_from_pos(app, buffer, pos, Side_Max)); } static Cpp_Token* get_first_token_from_pos(Cpp_Token_Array tokens, i32 pos){ Cpp_Get_Token_Result get_token = cpp_get_token(tokens, pos); if (get_token.in_whitespace_after_token){ get_token.token_index += 1; } Cpp_Token *result = 0; if (get_token.token_index < tokens.count){ result = tokens.tokens + get_token.token_index; } return(result); } static Cpp_Token* get_first_token_from_line(Application_Links *app, Buffer_ID buffer, Cpp_Token_Array tokens, i32 line){ i32 line_start = get_line_start_pos(app, buffer, line); return(get_first_token_from_pos(tokens, line_start)); } //////////////////////////////// static i32 scan_any_boundary(Application_Links *app, Boundary_Function *func, Buffer_ID buffer, Scan_Direction direction, i32 pos){ i32 a = func(app, buffer, Side_Min, direction, pos); i32 b = func(app, buffer, Side_Max, direction, pos); i32 result = 0; if (direction == Scan_Forward){ result = Min(a, b); } else{ result = Max(a, b); } return(result); } static i32 scan(Application_Links *app, Boundary_Function *func, Buffer_ID buffer, Scan_Direction direction, i32 pos){ Side side = (direction == Scan_Forward)?(Side_Max):(Side_Min); return(func(app, buffer, side, direction, pos)); } static i32 scan(Application_Links *app, Boundary_Function_List funcs, Buffer_ID buffer, Scan_Direction direction, i32 start_pos){ i32 result = 0; if (direction == Scan_Forward){ i32 size = 0; buffer_get_size(app, buffer, &size); result = size + 1; for (Boundary_Function_Node *node = funcs.first; node != 0; node = node->next){ i32 pos = scan(app, node->func, buffer, direction, start_pos); result = Min(result, pos); } } else{ result = -1; for (Boundary_Function_Node *node = funcs.first; node != 0; node = node->next){ i32 pos = scan(app, node->func, buffer, direction, start_pos); result = Max(result, pos); } } return(result); } static void push_boundary(Arena *arena, Boundary_Function_List *list, Boundary_Function *func){ Boundary_Function_Node *node = push_array(arena, Boundary_Function_Node, 1); sll_queue_push(list->first, list->last, node); list->count += 1; node->func = func; } static Boundary_Function_List push_boundary_list__innerv(Arena *arena, va_list args){ Boundary_Function_List list = {}; for (;;){ Boundary_Function *func = va_arg(args, Boundary_Function*); if (func == 0){ break; } push_boundary(arena, &list, func); } return(list); } static Boundary_Function_List push_boundary_list__inner(Arena *arena, ...){ va_list args; va_start(args, arena); Boundary_Function_List result = push_boundary_list__innerv(arena, args); va_end(args); return(result); } #define push_boundary_list(a,...) push_boundary_list__inner((a), __VA_ARGS__, 0) static i32 boundary_predicate(Application_Links *app, Buffer_ID buffer, Side side, Scan_Direction direction, i32 pos, Character_Predicate *predicate){ i32 result = 0; switch (side){ case Side_Min: { result = buffer_seek_character_class_change_0_1(app, buffer, predicate, direction, pos); }break; case Side_Max: { result = buffer_seek_character_class_change_1_0(app, buffer, predicate, direction, pos); }break; } return(result); } static i32 boundary_non_whitespace(Application_Links *app, Buffer_ID buffer, Side side, Scan_Direction direction, i32 pos){ return(boundary_predicate(app, buffer, side, direction, pos, &character_predicate_non_whitespace)); } static i32 boundary_alpha_numeric(Application_Links *app, Buffer_ID buffer, Side side, Scan_Direction direction, i32 pos){ return(boundary_predicate(app, buffer, side, direction, pos, &character_predicate_alpha_numeric)); } static i32 boundary_alpha_numeric_unicode(Application_Links *app, Buffer_ID buffer, Side side, Scan_Direction direction, i32 pos){ return(boundary_predicate(app, buffer, side, direction, pos, &character_predicate_alpha_numeric_underscore_utf8)); } static i32 boundary_alpha_numeric_underscore(Application_Links *app, Buffer_ID buffer, Side side, Scan_Direction direction, i32 pos){ return(boundary_predicate(app, buffer, side, direction, pos, &character_predicate_alpha_numeric_underscore)); } static i32 boundary_alpha_numeric_camel(Application_Links *app, Buffer_ID buffer, Side side, Scan_Direction direction, i32 pos){ i32 an_pos = boundary_alpha_numeric(app, buffer, side, direction, pos); i32 cap_pos = 0; buffer_seek_character_class(app, buffer, &character_predicate_uppercase, direction, pos, &cap_pos); if (side == Side_Max){ i32 an_left_pos = boundary_alpha_numeric(app, buffer, flip_side(side), flip_direction(direction), an_pos); if (cap_pos == an_left_pos){ buffer_seek_character_class(app, buffer, &character_predicate_uppercase, direction, cap_pos, &cap_pos); } } i32 result = 0; if (direction == Scan_Backward){ result = Max(an_pos, cap_pos); } else{ result = Min(an_pos, cap_pos); } return(result); } static i32 boundary_token(Application_Links *app, Buffer_ID buffer, Side side, Scan_Direction direction, i32 pos){ i32 result = 0; if (!buffer_tokens_are_ready(app, buffer)){ result = boundary_non_whitespace(app, buffer, side, direction, pos); } else{ Cpp_Token *first_token = 0; Cpp_Token *last_token = 0; buffer_get_token_range(app, buffer, &first_token, &last_token); Cpp_Token_Array tokens = {first_token, (i32)(last_token - first_token)}; switch (direction){ case Scan_Forward: { i32 buffer_size = 0; buffer_get_size(app, buffer, &buffer_size); if (tokens.count > 0){ Cpp_Token *token = get_first_token_from_pos(tokens, pos); if (token != 0){ if (side == Side_Max){ result = token->start + token->size; } else{ if (token->start > pos){ result = token->start; } else{ token += 1; if (token < tokens.tokens + tokens.count){ result = token->start; } else{ result = buffer_size; } } } } else{ result = buffer_size; } } else{ result = buffer_size; } }break; case Scan_Backward: { if (tokens.count > 0){ Cpp_Token *token = get_first_token_from_pos(tokens, pos); if (side == Side_Min){ if (token == 0){ token = tokens.tokens + tokens.count - 1; result = token->start; } else{ if (token->start < pos){ result = token->start; } else{ token -= 1; if (token >= tokens.tokens){ result = token->start; } else{ result = 0; } } } } else{ if (token == 0){ token = tokens.tokens + tokens.count - 1; result = token->start + token->size; } else{ token -= 1; if (token >= tokens.tokens && token->start + token->size == pos){ token -= 1; } if (token >= tokens.tokens){ result = token->start + token->size; } else{ result = 0; } } } } else{ result = 0; } }break; } } return(result); } static i32 boundary_line(Application_Links *app, Buffer_ID buffer, Side side, Scan_Direction direction, i32 pos){ i32 line_number = get_line_number_from_pos(app, buffer, pos); i32 new_pos = get_line_side_pos(app, buffer, line_number, side); if (direction == Scan_Backward && new_pos >= pos){ if (line_number > 1){ new_pos = get_line_side_pos(app, buffer, line_number - 1, side); } else{ new_pos = 0; } } else if (direction == Scan_Forward && new_pos <= pos){ new_pos = get_line_side_pos(app, buffer, line_number + 1, side); if (new_pos <= pos){ buffer_get_size(app, buffer, &new_pos); } } return(new_pos); } //////////////////////////////// void buffer_seek_delimiter_forward(Application_Links *app, Buffer_ID buffer, i32 pos, char delim, i32 *result){ Character_Predicate predicate = character_predicate_from_character((u8)delim); buffer_seek_character_class(app, buffer, &predicate, Scan_Forward, pos, result); } void buffer_seek_delimiter_backward(Application_Links *app, Buffer_ID buffer, i32 pos, char delim, i32 *result){ Character_Predicate predicate = character_predicate_from_character((u8)delim); buffer_seek_character_class(app, buffer, &predicate, Scan_Backward, pos, result); } static void buffer_seek_string_forward(Application_Links *app, Buffer_ID buffer, i32 pos, i32 end, String_Const_u8 needle, i32 *result){ if (end == 0){ buffer_get_size(app, buffer, &end); } b32 case_sensitive = false; b32 finding_matches = false; do{ finding_matches = buffer_seek_string(app, buffer, needle, Scan_Forward, pos, &pos, &case_sensitive); } while(!case_sensitive && pos < end && finding_matches); if (pos < end && finding_matches){ *result = pos; } else{ buffer_get_size(app, buffer, result); } } static void buffer_seek_string_backward(Application_Links *app, Buffer_ID buffer, i32 pos, i32 min, String_Const_u8 needle, i32 *result){ b32 case_sensitive = false; b32 finding_matches = false; do{ finding_matches = buffer_seek_string(app, buffer, needle, Scan_Backward, pos, &pos, &case_sensitive); } while(!case_sensitive && pos >= min && finding_matches); if (pos >= min && finding_matches){ *result = pos; } else{ *result = -1; } } static void buffer_seek_string_insensitive_forward(Application_Links *app, Buffer_ID buffer, i32 pos, i32 end, String_Const_u8 needle, i32 *result){ if (end == 0){ buffer_get_size(app, buffer, &end); } b32 finding_matches = false; b32 case_sensitive = false; finding_matches = buffer_seek_string(app, buffer, needle, Scan_Forward, pos, &pos, &case_sensitive); if (pos < end && finding_matches){ *result = pos; } else{ buffer_get_size(app, buffer, result); } } static void buffer_seek_string_insensitive_backward(Application_Links *app, Buffer_ID buffer, i32 pos, i32 min, String_Const_u8 needle, i32 *result){ b32 finding_matches = false; b32 case_sensitive = false; finding_matches = buffer_seek_string(app, buffer, needle, Scan_Backward, pos, &pos, &case_sensitive); if (pos >= min && finding_matches){ *result = pos; } else{ *result = -1; } } static void buffer_seek_string(Application_Links *app, Buffer_ID buffer_id, i32 pos, i32 end, i32 min, String_Const_u8 str, i32 *result, Buffer_Seek_String_Flags flags){ switch (flags & 3){ case 0: { buffer_seek_string_forward(app, buffer_id, pos, end, str, result); }break; case BufferSeekString_Backward: { buffer_seek_string_backward(app, buffer_id, pos, min, str, result); }break; case BufferSeekString_CaseInsensitive: { buffer_seek_string_insensitive_forward(app, buffer_id, pos, end, str, result); }break; case BufferSeekString_Backward|BufferSeekString_CaseInsensitive: { buffer_seek_string_insensitive_backward(app, buffer_id, pos, min, str, result); }break; } } //////////////////////////////// static Range get_line_range_from_pos_range(Application_Links *app, Buffer_ID buffer, Range pos_range){ Range line_range = {}; line_range.first = get_line_number_from_pos(app, buffer, pos_range.first); if (line_range.first != 0){ line_range.end = get_line_number_from_pos(app, buffer, pos_range.one_past_last); if (line_range.end == 0){ line_range.first = 0; } } return(line_range); } // NOTE(allen): The end of the returned range does not include the terminating newline character of // the last line. static Range get_pos_range_from_line_range(Application_Links *app, Buffer_ID buffer, Range line_range){ Range pos_range = {}; if (is_valid_line_range(app, buffer, line_range)){ pos_range.first = get_line_start_pos(app, buffer, line_range.first); pos_range.one_past_last = get_line_end_pos(app, buffer, line_range.end); } return(pos_range); } static Range enclose_boundary(Application_Links *app, Buffer_ID buffer, Range range, Boundary_Function *func){ i32 new_min = func(app, buffer, Side_Min, Scan_Backward, range.min + 1); i32 new_min_check = func(app, buffer, Side_Max, Scan_Backward, range.min + 1); if (new_min_check <= new_min && new_min < range.min){ range.min = new_min; } i32 new_max = func(app, buffer, Side_Max, Scan_Forward, range.max - 1); i32 new_max_check = func(app, buffer, Side_Min, Scan_Forward, range.max - 1); if (new_max_check >= new_max && new_max > range.max){ range.max = new_max; } return(range); } static Range enclose_non_whitespace(Application_Links *app, Buffer_ID buffer, Range range){ return(enclose_boundary(app, buffer, range, boundary_non_whitespace)); } static Range enclose_tokens(Application_Links *app, Buffer_ID buffer, Range range){ return(enclose_boundary(app, buffer, range, boundary_token)); } static Range enclose_alpha_numeric(Application_Links *app, Buffer_ID buffer, Range range){ return(enclose_boundary(app, buffer, range, boundary_alpha_numeric)); } static Range enclose_alpha_numeric_unicode(Application_Links *app, Buffer_ID buffer, Range range){ return(enclose_boundary(app, buffer, range, boundary_alpha_numeric_unicode)); } static Range enclose_alpha_numeric_underscore(Application_Links *app, Buffer_ID buffer, Range range){ return(enclose_boundary(app, buffer, range, boundary_alpha_numeric_underscore)); } static Range enclose_alpha_numeric_camel(Application_Links *app, Buffer_ID buffer, Range range){ return(enclose_boundary(app, buffer, range, boundary_alpha_numeric_camel)); } static Range pos_range_enclose_whole_lines(Application_Links *app, Buffer_ID buffer, Range range){ return(enclose_boundary(app, buffer, range, boundary_line)); } //////////////////////////////// static Range get_snipe_range(Application_Links *app, Boundary_Function_List funcs, Buffer_ID buffer, i32 pos, Scan_Direction direction){ Range result = {}; i32 buffer_size = 0; buffer_get_size(app, buffer, &buffer_size); i32 pos0 = pos; i32 pos1 = scan(app, funcs, buffer, direction, pos0); if (0 <= pos1 && pos1 <= buffer_size){ i32 pos2 = scan(app, funcs, buffer, flip_direction(direction), pos1); if (0 <= pos2 && pos2 <= buffer_size){ if (direction == Scan_Backward){ pos2 = clamp_bot(pos2, pos0); } else{ pos2 = clamp_top(pos2, pos0); } result = make_range(pos1, pos2); } } return(result); } static Range get_snipe_range(Application_Links *app, Boundary_Function *func, Buffer_ID buffer, i32 pos, Scan_Direction direction){ Scratch_Block scratch(app); return(get_snipe_range(app, push_boundary_list(scratch, func), buffer, pos, direction)); } //////////////////////////////// static String_Const_u8 push_buffer_range(Application_Links *app, Arena *arena, Buffer_ID buffer, umem first, umem one_past_last){ String_Const_u8 result = {}; if (first <= one_past_last){ umem length = one_past_last - first; Temp_Memory restore_point = begin_temp(arena); u8 *memory = push_array(arena, u8, length); if (buffer_read_range(app, buffer, (i32)first, (i32)one_past_last, (char*)memory)){ result = SCu8(memory, length); } else{ end_temp(restore_point); } } return(result); } static String_Const_u8 push_buffer_range(Application_Links *app, Arena *arena, Buffer_ID buffer, Range range){ return(push_buffer_range(app, arena, buffer, range.first, range.one_past_last)); } static String_Const_u8 push_buffer_range(Application_Links *app, Arena *arena, Buffer_ID buffer, Range_umem range){ return(push_buffer_range(app, arena, buffer, range.first, range.one_past_last)); } static String_Const_u8 push_token_lexeme(Application_Links *app, Arena *arena, Buffer_ID buffer, Cpp_Token token){ return(push_buffer_range(app, arena, buffer, token.start, token.start + token.size)); } static String_Const_u8 push_buffer_line(Application_Links *app, Arena *arena, Buffer_ID buffer, i32 line_number){ return(push_buffer_range(app, arena, buffer, get_line_pos_range(app, buffer, line_number))); } static String_Const_u8 push_whole_buffer(Application_Links *app, Arena *arena, Buffer_ID buffer){ i32 size = 0; buffer_get_size(app, buffer, &size); return(push_buffer_range(app, arena, buffer, 0, size)); } static String_Const_u8 push_string_in_view_range(Application_Links *app, Arena *arena, View_ID view){ Buffer_ID buffer = 0; view_get_buffer(app, view, AccessProtected, &buffer); return(push_buffer_range(app, arena, buffer, get_view_range(app, view))); } static String_Const_u8 push_enclose_range_at_pos(Application_Links *app, Arena *arena, Buffer_ID buffer, i32 pos, Enclose_Function *enclose){ Range range = enclose(app, buffer, make_range(pos)); return(push_buffer_range(app, arena, buffer, range)); } //////////////////////////////// static b32 buffer_has_name_with_star(Application_Links *app, Buffer_ID buffer){ Scratch_Block scratch(app); String_Const_u8 str = push_buffer_unique_name(app, scratch, buffer); return(str.size > 0 && str.str[0] == '*'); } static char buffer_get_char(Application_Links *app, Buffer_ID buffer_id, i32 pos){ i32 buffer_size = 0; buffer_get_size(app, buffer_id, &buffer_size); char result = ' '; if (0 <= pos && pos < buffer_size){ buffer_read_range(app, buffer_id, pos, pos + 1, &result); } return(result); } static b32 token_lexeme_string_match(Application_Links *app, Buffer_ID buffer, Cpp_Token token, String_Const_u8 b){ Scratch_Block scratch(app); return(string_match(push_token_lexeme(app, scratch, buffer, token), b)); } static b32 line_is_valid_and_blank(Application_Links *app, Buffer_ID buffer, i32 line_number){ b32 result = false; if (is_valid_line(app, buffer, line_number)){ Scratch_Block scratch(app); String_Const_u8 line = push_buffer_line(app, scratch, buffer, line_number); result = true; for (umem i = 0; i < line.size; i += 1){ if (!character_is_whitespace(line.str[i])){ result = false; break; } } } return(result); } //////////////////////////////// static i32 get_pos_past_lead_whitespace(Application_Links *app, Buffer_ID buffer, i32 pos){ Scratch_Block scratch(app); i32 line_number = get_line_number_from_pos(app, buffer, pos); Range line_range = get_line_pos_range(app, buffer, line_number); String_Const_u8 line = push_buffer_range(app, scratch, buffer, line_range); i32 result = line_range.end; for (umem i = 0; i < line.size; i += 1){ if (!character_is_whitespace(line.str[i])){ result = line_range.start + (i32)i; break; } } result = clamp_bot(result, pos); return(result); } static void move_past_lead_whitespace(Application_Links *app, View_ID view, Buffer_ID buffer){ i32 pos = 0; view_get_cursor_pos(app, view, &pos); i32 new_pos = get_pos_past_lead_whitespace(app, buffer, pos); view_set_cursor(app, view, seek_pos(new_pos), true); } static void move_past_lead_whitespace(Application_Links *app, View_ID view){ Buffer_ID buffer = 0; view_get_buffer(app, view, AccessProtected, &buffer); move_past_lead_whitespace(app, view, buffer); } static b32 line_is_blank(Application_Links *app, Buffer_ID buffer, i32 line_number){ Scratch_Block scratch(app); String_Const_u8 line = push_buffer_line(app, scratch, buffer, line_number); b32 is_blank = true; for (umem i = 0; i < line.size; i += 1){ if (!character_is_whitespace(line.str[i])){ is_blank = false; break; } } return(is_blank); } static i32 get_line_number_of__whitespace_status_line(Application_Links *app, Buffer_ID buffer, Scan_Direction direction, i32 line_number_start, b32 get_blank_line){ i32 line_count = 0; buffer_get_line_count(app, buffer, &line_count); i32 line_number = line_number_start + direction; for (;1 <= line_number && line_number <= line_count; line_number += direction){ b32 is_blank = line_is_blank(app, buffer, line_number); if (is_blank == get_blank_line){ break; } } line_number = clamp(1, line_number, line_count); return(line_number); } static i32 get_line_number_of_non_blank_line(Application_Links *app, Buffer_ID buffer, Scan_Direction direction, i32 line_number_start){ return(get_line_number_of__whitespace_status_line(app, buffer, direction, line_number_start, false)); } static i32 get_line_number_of_blank_line(Application_Links *app, Buffer_ID buffer, Scan_Direction direction, i32 line_number_start){ return(get_line_number_of__whitespace_status_line(app, buffer, direction, line_number_start, true)); } static i32 get_pos_of_blank_line(Application_Links *app, Buffer_ID buffer, Scan_Direction direction, i32 pos_start){ i32 line_number_start = get_line_number_from_pos(app, buffer, pos_start); i32 blank_line = get_line_number_of_blank_line(app, buffer, direction, line_number_start); i32 pos = get_line_start_pos(app, buffer, blank_line); return(pos); } static i32 get_line_number_of_blank_line_grouped(Application_Links *app, Buffer_ID buffer, Scan_Direction direction, i32 line_number_start){ i32 line_number = line_number_start; if (line_is_blank(app, buffer, line_number)){ line_number = get_line_number_of_non_blank_line(app, buffer, direction, line_number); } line_number = get_line_number_of_blank_line(app, buffer, direction, line_number); return(line_number); } static i32 get_pos_of_blank_line_grouped(Application_Links *app, Buffer_ID buffer, Scan_Direction direction, i32 pos_start){ i32 line_number_start = get_line_number_from_pos(app, buffer, pos_start); i32 blank_line = get_line_number_of_blank_line_grouped(app, buffer, direction, line_number_start); i32 pos = get_line_start_pos(app, buffer, blank_line); return(pos); } //////////////////////////////// static History_Group history_group_begin(Application_Links *app, Buffer_ID buffer){ History_Group group = {}; group.app = app; group.buffer = buffer; buffer_history_get_current_state_index(app, buffer, &group.first); group.first += 1; return(group); } static void history_group_end(History_Group group){ History_Record_Index last = 0; buffer_history_get_current_state_index(group.app, group.buffer, &last); if (group.first < last){ buffer_history_merge_record_range(group.app, group.buffer, group.first, last, RecordMergeFlag_StateInRange_MoveStateForward); } } //////////////////////////////// static void replace_in_range(Application_Links *app, Buffer_ID buffer, Range range, String_Const_u8 needle, String_Const_u8 string){ History_Group group = history_group_begin(app, buffer); i32 pos = range.min - 1; i32 new_pos = 0; buffer_seek_string_forward(app, buffer, pos, range.end, needle, &new_pos); i32 shift = replace_range_compute_shift((i32)needle.size, (i32)string.size); for (; new_pos + (imem)needle.size <= range.end;){ Range needle_range = make_range(new_pos, new_pos + (i32)needle.size); buffer_replace_range(app, buffer, needle_range, string); range.end += shift; pos = new_pos + (i32)string.size - 1; buffer_seek_string_forward(app, buffer, pos, range.end, needle, &new_pos); } history_group_end(group); } internal Range swap_lines(Application_Links *app, Buffer_ID buffer, i32 line_1, i32 line_2){ Range result = {}; i32 line_count = 0; buffer_get_line_count(app, buffer, &line_count); if (1 <= line_1 && line_2 <= line_count){ Range range_1 = get_line_pos_range(app, buffer, line_1); Range range_2 = get_line_pos_range(app, buffer, line_2); Scratch_Block scratch(app); String_Const_u8 text_1 = push_buffer_range(app, scratch, buffer, range_1); String_Const_u8 text_2 = push_buffer_range(app, scratch, buffer, range_2); History_Group group = history_group_begin(app, buffer); buffer_replace_range(app, buffer, range_2, text_1); buffer_replace_range(app, buffer, range_1, text_2); history_group_end(group); i32 shift = replace_range_compute_shift(range_1, (i32)text_2.size); result.min = range_1.min; result.max = range_2.min + shift; } return(result); } internal i32 move_line(Application_Links *app, Buffer_ID buffer, i32 line_number, Scan_Direction direction){ i32 line_1 = 0; i32 line_2 = 0; if (direction == Scan_Forward){ line_1 = line_number; line_2 = line_number + 1; } else{ line_1 = line_number - 1; line_2 = line_number; } Range line_starts = swap_lines(app, buffer, line_1, line_2); i32 result = 0; if (line_starts.min < line_starts.max){ if (direction == Scan_Forward){ result = line_starts.max; } else{ result = line_starts.min; } } else{ result = get_line_side_pos(app, buffer, line_number, Side_Min); } return(result); } internal void move_line_current_view(Application_Links *app, Scan_Direction direction){ View_ID view = 0; get_active_view(app, AccessOpen, &view); Buffer_ID buffer = 0; view_get_buffer(app, view, AccessOpen, &buffer); i32 pos = 0; view_get_cursor_pos(app, view, &pos); i32 line_number = get_line_number_from_pos(app, buffer, pos); pos = move_line(app, buffer, line_number, direction); view_set_cursor(app, view, seek_pos(pos), true); } //////////////////////////////// static void exec_command(Application_Links *app, Custom_Command_Function *func){ func(app); } static void exec_command(Application_Links *app, Generic_Command cmd){ exec_command(app, cmd.command); } static i32 key_is_unmodified(Key_Event_Data *key){ int8_t *mods = key->modifiers; i32 unmodified = (!mods[MDFR_CONTROL_INDEX] && !mods[MDFR_ALT_INDEX]); return(unmodified); } static u32 to_writable_character(User_Input in, uint8_t *character){ u32 result = 0; if (in.key.character != 0){ u32_to_utf8_unchecked(in.key.character, character, &result); } return(result); } static u32 to_writable_character(Key_Event_Data key, uint8_t *character){ u32 result = 0; if (key.character != 0){ u32_to_utf8_unchecked(key.character, character, &result); } return(result); } static String_Const_u8 backspace_utf8(String_Const_u8 string){ if (string.size > 0){ umem i = string.size - 1; for (; i > 0; --i){ if (string.str[i] <= 0x7F || string.str[i] >= 0xC0){ break; } } string.size = i; } return(string); } static b32 query_user_general(Application_Links *app, Query_Bar *bar, b32 force_number){ // NOTE(allen|a3.4.4): It will not cause an *error* if we continue on after failing to. // start a query bar, but it will be unusual behavior from the point of view of the // user, if this command starts intercepting input even though no prompt is shown. // This will only happen if you have a lot of bars open already or if the current view // doesn't support query bars. if (start_query_bar(app, bar, 0) == 0){ return(false); } b32 success = true; for (;;){ // NOTE(allen|a3.4.4): This call will block until the user does one of the input // types specified in the flags. The first set of flags are inputs you'd like to intercept // that you don't want to abort on. The second set are inputs that you'd like to cause // the command to abort. If an event satisfies both flags, it is treated as an abort. User_Input in = get_user_input(app, EventOnAnyKey, EventOnEsc|EventOnMouseLeftButton|EventOnMouseRightButton); // NOTE(allen|a3.4.4): The responsible thing to do on abort is to end the command // without waiting on get_user_input again. if (in.abort){ success = false; break; } uint8_t character[4]; u32 length = 0; b32 good_character = false; if (key_is_unmodified(&in.key)){ if (force_number){ if (in.key.character >= '0' && in.key.character <= '9'){ good_character = true; length = to_writable_character(in, character); } } else{ length = to_writable_character(in, character); if (length != 0){ good_character = true; } } } // NOTE(allen|a3.4.4): All we have to do to update the query bar is edit our // local Query_Bar struct! This is handy because it means our Query_Bar // is always correct for typical use without extra work updating the bar. if (in.key.keycode == '\n' || in.key.keycode == '\t'){ break; } else if (in.key.keycode == key_back){ bar->string = backspace_utf8(bar->string); } else if (good_character){ String_u8 string = Su8(bar->string.str, bar->string.size, bar->string_capacity); string_append(&string, SCu8(character, length)); bar->string = string.string; } } return(success); } static b32 query_user_string(Application_Links *app, Query_Bar *bar){ return(query_user_general(app, bar, false)); } static b32 query_user_number(Application_Links *app, Query_Bar *bar){ return(query_user_general(app, bar, true)); } //////////////////////////////// static Buffer_Identifier buffer_identifier(char *str, i32 len){ Buffer_Identifier identifier; identifier.name = str; identifier.name_len = len; identifier.id = 0; return(identifier); } static Buffer_Identifier buffer_identifier(String_Const_u8 str){ return(buffer_identifier((char*)str.str, (i32)str.size)); } static Buffer_Identifier buffer_identifier(Buffer_ID id){ Buffer_Identifier identifier; identifier.name = 0; identifier.name_len = 0; identifier.id = id; return(identifier); } static Buffer_ID buffer_identifier_to_id(Application_Links *app, Buffer_Identifier identifier){ Buffer_ID id = 0; if (identifier.id != 0){ id = identifier.id; } else{ String_Const_u8 name = SCu8(identifier.name, identifier.name_len); get_buffer_by_name(app, name, AccessAll, &id); if (id == 0){ get_buffer_by_file_name(app, name, AccessAll, &id); } } return(id); } static Buffer_ID buffer_identifier_to_id_create_out_buffer(Application_Links *app, Buffer_Identifier buffer_id){ Buffer_ID result = 0; if (buffer_id.name != 0 && buffer_id.name_len > 0){ String_Const_u8 buffer_name = SCu8(buffer_id.name, buffer_id.name_len); Buffer_ID buffer_attach_id = 0; if (get_buffer_by_name(app, buffer_name, AccessAll, &buffer_attach_id)){ result = buffer_attach_id; } else{ if (create_buffer(app, buffer_name, BufferCreate_AlwaysNew|BufferCreate_NeverAttachToFile, &buffer_attach_id)){ buffer_set_setting(app, buffer_attach_id, BufferSetting_ReadOnly, true); buffer_set_setting(app, buffer_attach_id, BufferSetting_Unimportant, true); result = buffer_attach_id; } } } else{ result = buffer_id.id; } return(result); } //////////////////////////////// static void adjust_all_buffer_wrap_widths(Application_Links *app, i32 wrap_width, i32 min_base_width){ Buffer_ID buffer = 0; for (get_buffer_next(app, 0, AccessAll, &buffer); buffer != 0; get_buffer_next(app, buffer, AccessAll, &buffer)){ buffer_set_setting(app, buffer, BufferSetting_WrapPosition, wrap_width); buffer_set_setting(app, buffer, BufferSetting_MinimumBaseWrapPosition, min_base_width); } } static View_ID open_view(Application_Links *app, View_ID view_location, View_Split_Position position){ View_ID result = 0; if (view_location != 0 && view_exists(app, view_location)){ Panel_ID panel_id = 0; if (view_get_panel(app, view_location, &panel_id)){ b32 vertical = (position == ViewSplit_Left || position == ViewSplit_Right); if (panel_split(app, panel_id, vertical?PanelSplit_LeftAndRight:PanelSplit_TopAndBottom)){ Panel_ID new_panel_id = 0; Panel_Child child = (position == ViewSplit_Left || position == ViewSplit_Top)?PanelChild_Min:PanelChild_Max; if (panel_get_child(app, panel_id, child, &new_panel_id)){ View_ID new_view_id = 0; if (panel_get_view(app, new_panel_id, &new_view_id)){ result = new_view_id; } } } } } return(result); } static View_ID get_first_view_with_buffer(Application_Links *app, Buffer_ID buffer_id){ View_ID result = {}; View_ID test = {}; if (buffer_id != 0){ for (get_view_next(app, 0, AccessAll, &test); test != 0; get_view_next(app, test, AccessAll, &test)){ Buffer_ID test_buffer = 0; view_get_buffer(app, test, AccessAll, &test_buffer); if (test_buffer == buffer_id){ result = test; break; } } } return(result); } static b32 open_file(Application_Links *app, Buffer_ID *buffer_out, String_Const_u8 file_name, b32 background, b32 never_new){ b32 result = false; Buffer_ID buffer = 0; get_buffer_by_name(app, file_name, AccessProtected, &buffer); b32 exists = buffer_exists(app, buffer); if (!exists){ Buffer_Create_Flag flags = 0; if (background){ flags |= BufferCreate_Background; } if (never_new){ flags |= BufferCreate_NeverNew; } create_buffer(app, file_name, flags, &buffer); exists = buffer_exists(app, buffer); } if (exists){ if (buffer_out != 0){ *buffer_out = buffer; } result = true; } return(result); } static b32 view_open_file(Application_Links *app, View_ID view, String_Const_u8 file_name, b32 never_new){ b32 result = false; if (view != 0){ Buffer_ID buffer = 0; if (open_file(app, &buffer, file_name, false, never_new)){ view_set_buffer(app, view, buffer, 0); result = true; } } return(result); } //////////////////////////////// static View_ID get_next_view_looped_all_panels(Application_Links *app, View_ID view_id, Access_Flag access){ if (!get_view_next(app, view_id, access, &view_id)){ if (!get_view_next(app, 0, access, &view_id)){ view_id = 0; } } return(view_id); } static View_ID get_prev_view_looped_all_panels(Application_Links *app, View_ID view_id, Access_Flag access){ if (!get_view_prev(app, view_id, access, &view_id)){ if (!get_view_prev(app, 0, access, &view_id)){ view_id = 0; } } return(view_id); } //////////////////////////////// static Buffer_Kill_Result kill_buffer(Application_Links *app, Buffer_Identifier identifier, View_ID gui_view_id, Buffer_Kill_Flag flags){ Buffer_ID buffer = buffer_identifier_to_id(app, identifier); Buffer_Kill_Result result = 0; buffer_kill(app, buffer, flags, &result); if (result == BufferKillResult_Dirty){ do_gui_sure_to_kill(app, buffer, gui_view_id); } return(result); } //////////////////////////////// static void clear_buffer(Application_Links *app, Buffer_ID buffer_id){ i32 buffer_size = 0; buffer_get_size(app, buffer_id, &buffer_size); buffer_replace_range(app, buffer_id, make_range(0, buffer_size), string_u8_litexpr("")); } //////////////////////////////// static b32 init_stream_chunk(Stream_Chunk *chunk, Application_Links *app, Buffer_ID buffer_id, i32 pos, char *data, u32 size){ b32 result = false; i32 buffer_size = 0; buffer_get_size(app, buffer_id, &buffer_size); if (0 <= pos && pos < buffer_size && size > 0){ chunk->app = app; chunk->buffer_id = buffer_id; chunk->base_data = data; chunk->data_size = size; chunk->start = round_down_i32(pos, size); chunk->end = round_up_i32(pos, size); if (chunk->max_end > buffer_size || chunk->max_end == 0){ chunk->max_end = buffer_size; } if (chunk->max_end && chunk->max_end < chunk->end){ chunk->end = chunk->max_end; } if (chunk->min_start && chunk->min_start > chunk->start){ chunk->start = chunk->min_start; } if (chunk->start < chunk->end){ buffer_read_range(app, buffer_id, chunk->start, chunk->end, chunk->base_data); chunk->data = chunk->base_data - chunk->start; result = true; } } return(result); } static b32 forward_stream_chunk(Stream_Chunk *chunk){ Application_Links *app = chunk->app; Buffer_ID buffer_id = chunk->buffer_id; b32 result = 0; i32 buffer_size = 0; buffer_get_size(app, buffer_id, &buffer_size); if (chunk->end < buffer_size){ chunk->start = chunk->end; chunk->end += chunk->data_size; if (chunk->max_end && chunk->max_end < chunk->end){ chunk->end = chunk->max_end; } if (chunk->min_start && chunk->min_start > chunk->start){ chunk->start = chunk->min_start; } if (chunk->start < chunk->end){ buffer_read_range(app, buffer_id, chunk->start, chunk->end, chunk->base_data); chunk->data = chunk->base_data - chunk->start; result = 1; } } else if (chunk->add_null && chunk->end + 1 < buffer_size){ chunk->start = buffer_size; chunk->end = buffer_size + 1; chunk->base_data[0] = 0; chunk->data = chunk->base_data - chunk->start; result = 1; } return(result); } static b32 backward_stream_chunk(Stream_Chunk *chunk){ Application_Links *app = chunk->app; Buffer_ID buffer_id = chunk->buffer_id; b32 result = false; if (chunk->start > 0){ chunk->end = chunk->start; chunk->start -= chunk->data_size; if (chunk->max_end && chunk->max_end < chunk->end){ chunk->end = chunk->max_end; } if (chunk->min_start && chunk->min_start > chunk->start){ chunk->start = chunk->min_start; } if (chunk->start < chunk->end){ buffer_read_range(app, buffer_id, chunk->start, chunk->end, chunk->base_data); chunk->data = chunk->base_data - chunk->start; result = true; } } else if (chunk->add_null && chunk->start > -1){ chunk->start = -1; chunk->end = 0; chunk->base_data[0] = 0; chunk->data = chunk->base_data - chunk->start; result = true; } return(result); } //////////////////////////////// static b32 init_stream_tokens(Stream_Tokens_DEP *stream, Application_Links *app, Buffer_ID buffer_id, i32 pos, Cpp_Token *data, i32 count){ b32 result = false; i32 token_count = 0; buffer_token_count(app, buffer_id, &token_count); if (buffer_tokens_are_ready(app, buffer_id) && pos >= 0 && pos < token_count && count > 0){ stream->app = app; stream->buffer_id = buffer_id; stream->base_tokens = data; stream->count = count; stream->start = round_down_i32(pos, count); stream->end = round_up_i32(pos, count); stream->token_count = token_count; stream->start = clamp_bot(0, stream->start); stream->end = clamp_top(stream->end, stream->token_count); buffer_read_tokens(app, buffer_id, stream->start, stream->end, stream->base_tokens); stream->tokens = stream->base_tokens - stream->start; result = true; } return(result); } static Stream_Tokens_DEP begin_temp_stream_token(Stream_Tokens_DEP *stream){ return(*stream); } static void end_temp_stream_token(Stream_Tokens_DEP *stream, Stream_Tokens_DEP temp){ if (stream->start != temp.start || stream->end != temp.end){ Application_Links *app = stream->app; buffer_read_tokens(app, temp.buffer_id, temp.start, temp.end, temp.base_tokens); stream->tokens = stream->base_tokens - temp.start; stream->start = temp.start; stream->end = temp.end; } } static b32 forward_stream_tokens(Stream_Tokens_DEP *stream){ Application_Links *app = stream->app; Buffer_ID buffer_id = stream->buffer_id; b32 result = false; if (stream->end < stream->token_count){ stream->start = stream->end; stream->end += stream->count; if (stream->end > stream->token_count){ stream->end = stream->token_count; } if (stream->start < stream->end){ buffer_read_tokens(app, buffer_id, stream->start, stream->end, stream->base_tokens); stream->tokens = stream->base_tokens - stream->start; result = true; } } return(result); } static b32 backward_stream_tokens(Stream_Tokens_DEP *stream){ Application_Links *app = stream->app; Buffer_ID buffer_id = stream->buffer_id; b32 result = false; if (stream->start > 0){ stream->end = stream->start; stream->start -= stream->count; if (0 > stream->start){ stream->start = 0; } if (stream->start < stream->end){ buffer_read_tokens(app, buffer_id, stream->start, stream->end, stream->base_tokens); stream->tokens = stream->base_tokens - stream->start; result = true; } } return(result); } //////////////////////////////// static Token_Range buffer_get_token_range(Application_Links *app, Buffer_ID buffer){ Token_Range range = {}; buffer_get_token_range(app, buffer, &range.first, &range.one_past_last); return(range); } static Token_Iterator make_token_iterator(Token_Range range, Cpp_Token *token){ Token_Iterator iterator = {}; if (range.first != 0 && range.one_past_last != 0){ if (token == 0 || token < range.first){ token = range.first; } if (token > range.one_past_last){ token = range.one_past_last; } iterator.token = token; iterator.range = range; } return(iterator); } static Token_Iterator make_token_iterator(Token_Range range, i32 index){ return(make_token_iterator(range, range.first + index)); } static void token_iterator_set(Token_Iterator *iterator, Cpp_Token *token){ *iterator = make_token_iterator(iterator->range, token); } static Cpp_Token* token_range_check(Token_Range range, Cpp_Token *token){ if (token < range.first || range.one_past_last <= token){ token = 0; } return(token); } static Cpp_Token* token_iterator_current(Token_Iterator *iterator){ return(token_range_check(iterator->range, iterator->token)); } static i32 token_iterator_current_index(Token_Iterator *iterator){ i32 index = -1; Cpp_Token *token = token_iterator_current(iterator); if (token != 0 && iterator->range.first <= token && token <= iterator->range.one_past_last){ index = (i32)(token - iterator->range.first); } return(index); } static Cpp_Token* token_iterator_goto_next(Token_Iterator *iterator){ Cpp_Token *token = iterator->token; Cpp_Token *one_past_last = iterator->range.one_past_last; for (token += 1; token < one_past_last; token += 1){ if (token->type != CPP_TOKEN_COMMENT){ break; } } Cpp_Token *result = token_range_check(iterator->range, token); *iterator = make_token_iterator(iterator->range, token); return(result); } static Cpp_Token* token_iterator_goto_next_raw(Token_Iterator *iterator){ Cpp_Token *result = token_range_check(iterator->range, iterator->token + 1); *iterator = make_token_iterator(iterator->range, iterator->token + 1); return(result); } static Cpp_Token* token_iterator_goto_prev(Token_Iterator *iterator){ Cpp_Token *token = iterator->token; Cpp_Token *first = iterator->range.first; for (token -= 1; token >= first; token -= 1){ if (token->type != CPP_TOKEN_COMMENT){ break; } } Cpp_Token *result = token_range_check(iterator->range, token); *iterator = make_token_iterator(iterator->range, token); return(result); } static Cpp_Token* token_iterator_goto_prev_raw(Token_Iterator *iterator){ Cpp_Token *result = token_range_check(iterator->range, iterator->token - 1); *iterator = make_token_iterator(iterator->range, iterator->token - 1); return(result); } //////////////////////////////// static String_Const_u8 get_query_string(Application_Links *app, char *query_str, char *string_space, i32 space_size){ Query_Bar bar; bar.prompt = SCu8((u8*)query_str); bar.string = SCu8((u8*)string_space, (umem)0); bar.string_capacity = space_size; if (!query_user_string(app, &bar)){ bar.string.size = 0; } return(bar.string); } static String_Const_u8 get_token_or_word_under_pos(Application_Links *app, Arena *arena, Buffer_ID buffer, umem pos){ String_Const_u8 result = {}; Cpp_Get_Token_Result get_result = {}; b32 success = buffer_get_token_index(app, buffer, (i32)pos, &get_result); if (success && !get_result.in_whitespace_after_token){ umem size = get_result.token_one_past_last - get_result.token_start; if (0 < size){ result = push_buffer_range(app, arena, buffer, get_result.token_start, get_result.token_one_past_last); } } return(result); } static b32 lexer_keywords_default_init(Arena *arena, Cpp_Keyword_Table *kw_out, Cpp_Keyword_Table *pp_out){ b32 success = false; umem kw_size = cpp_get_table_memory_size_default(CPP_TABLE_KEYWORDS); umem pp_size = cpp_get_table_memory_size_default(CPP_TABLE_PREPROCESSOR_DIRECTIVES); void *kw_mem = push_array(arena, char, kw_size); void *pp_mem = push_array(arena, char, pp_size); if (kw_mem != 0 && pp_mem != 0){ *kw_out = cpp_make_table_default(CPP_TABLE_KEYWORDS, kw_mem, kw_size); *pp_out = cpp_make_table_default(CPP_TABLE_PREPROCESSOR_DIRECTIVES, pp_mem, pp_size); success = true; } return(success); } //////////////////////////////// static b32 file_exists(Application_Links *app, String_Const_u8 file_name){ File_Attributes attributes = {}; file_get_attributes(app, file_name, &attributes); return(attributes.last_write_time > 0); } static b32 file_exists_and_is_file(Application_Links *app, String_Const_u8 file_name){ File_Attributes attributes = {}; file_get_attributes(app, file_name, &attributes); return(attributes.last_write_time > 0 && !HasFlag(attributes.flags, FileAttribute_IsDirectory)); } static b32 file_exists_and_is_folder(Application_Links *app, String_Const_u8 file_name){ File_Attributes attributes = {}; file_get_attributes(app, file_name, &attributes); return(attributes.last_write_time > 0 && HasFlag(attributes.flags, FileAttribute_IsDirectory)); } static Data dump_file_handle(Arena *arena, FILE *file){ Data result = {}; if (file != 0){ fseek(file, 0, SEEK_END); umem size = ftell(file); char *mem = push_array(arena, char, size); if (mem != 0){ fseek(file, 0, SEEK_SET); fread(mem, 1, size, file); result = make_data(mem, size); } } return(result); } static String_Const_u8 push_file_search_up_path(Application_Links *app, Arena *arena, String_Const_u8 start_path, String_Const_u8 file_name){ String_Const_u8 result = {}; String_Const_u8 path = start_path; for (;path.size > 0;){ Temp_Memory temp = begin_temp(arena); if (character_is_slash(string_get_character(path, path.size - 1))){ path = string_chop(path, 1); } String_Const_u8 full_path = string_u8_pushf(arena, "%.*s/%.*s", string_expand(path), string_expand(file_name)); if (file_exists(app, full_path)){ result = full_path; break; } path = string_remove_last_folder(path); end_temp(temp); } return(result); } static FILE* open_file_try_current_path_then_binary_path(Application_Links *app, char *file_name){ FILE *file = fopen(file_name, "rb"); if (file == 0){ Scratch_Block scratch(app); List_String_Const_u8 list = {}; string_list_push(scratch, &list, push_4ed_path(app, scratch)); string_list_push_overlap(scratch, &list, '/', SCu8(file_name)); String_Const_u8 str = string_list_flatten(scratch, list, StringFill_NullTerminate); file = fopen((char*)str.str, "rb"); } return(file); } static FILE* open_file(Arena *scratch, String_Const_u8 name){ Temp_Memory temp = begin_temp(scratch); String_Const_u8 name_copy = string_copy(scratch, name); FILE *file = fopen((char*)name_copy.str, "rb"); end_temp(temp); return(file); } static File_Name_Data dump_file(Arena *arena, String_Const_u8 file_name){ File_Name_Data result = {}; FILE *file = open_file(arena, file_name); if (file != 0){ result.file_name = file_name; result.data = dump_file_handle(arena, file); fclose(file); } return(result); } static File_Name_Data dump_file_search_up_path(Application_Links *app, Arena *arena, String_Const_u8 path, String_Const_u8 file_name){ File_Name_Data result = {}; String_Const_u8 full_path = push_file_search_up_path(app, arena, path, file_name); if (full_path.size > 0){ result = dump_file(arena, full_path); } return(result); } static void sort_pairs_by_key__quick(Sort_Pair_i32 *pairs, i32 first, i32 one_past_last){ i32 dif = one_past_last - first; if (dif >= 2){ i32 pivot = one_past_last - 1; Sort_Pair_i32 pivot_pair = pairs[pivot]; i32 j = first; b32 interleave = false; for (i32 i = first; i < pivot; i += 1){ Sort_Pair_i32 pair = pairs[i]; if (pair.key < pivot_pair.key){ pairs[i] = pairs[j]; pairs[j] = pair; j += 1; } else if (pair.key == pivot_pair.key){ if (interleave){ pairs[i] = pairs[j]; pairs[j] = pair; j += 1; } interleave = !interleave; } } pairs[pivot] = pairs[j]; pairs[j] = pivot_pair; sort_pairs_by_key__quick(pairs, first, j); sort_pairs_by_key__quick(pairs, j + 1, one_past_last); } } static void sort_pairs_by_key(Sort_Pair_i32 *pairs, i32 count){ sort_pairs_by_key__quick(pairs, 0, count); } static Range_Array get_ranges_of_duplicate_keys(Arena *arena, i32 *keys, i32 stride, i32 count){ Range_Array result = {}; result.ranges = push_array(arena, Range, count); u8 *ptr = (u8*)keys; i32 start_i = 0; for (i32 i = 1; i <= count; i += 1){ b32 is_end = false; if (i == count){ is_end = true; } else if (*(i32*)(ptr + i*stride) != *(i32*)(ptr + start_i*stride)){ is_end = true; } if (is_end){ Range *new_range = &result.ranges[result.count++]; new_range->first = start_i; new_range->one_past_last = i; start_i = i; } } pop_array(arena, Range, count - result.count); return(result); } static void no_mark_snap_to_cursor(Application_Links *app, Managed_Scope view_scope){ managed_variable_set(app, view_scope, view_snap_mark_to_cursor, false); } static void no_mark_snap_to_cursor(Application_Links *app, View_ID view_id){ Managed_Scope scope = 0; view_get_managed_scope(app, view_id, &scope); no_mark_snap_to_cursor(app, scope); } static void no_mark_snap_to_cursor_if_shift(Application_Links *app, View_ID view_id){ User_Input in = get_command_input(app); if (in.key.modifiers[MDFR_SHIFT_INDEX]){ no_mark_snap_to_cursor(app, view_id); } } static b32 view_has_highlighted_range(Application_Links *app, View_ID view_id){ b32 result = false; if (fcoder_mode == FCoderMode_NotepadLike){ i32 pos = 0; i32 mark = 0; view_get_cursor_pos(app, view_id, &pos); view_get_mark_pos(app, view_id, &mark); result = (pos != mark); } return(result); } static b32 if_view_has_highlighted_range_delete_range(Application_Links *app, View_ID view_id){ b32 result = false; if (view_has_highlighted_range(app, view_id)){ Range range = get_view_range(app, view_id); Buffer_ID buffer = 0; view_get_buffer(app, view_id, AccessOpen, &buffer); buffer_replace_range(app, buffer, range, string_u8_litexpr("")); result = true; } return(result); } static void begin_notepad_mode(Application_Links *app){ fcoder_mode = FCoderMode_NotepadLike; View_ID view = 0; for (get_view_next(app, 0, AccessAll, &view); view != 0; get_view_next(app, view, AccessAll, &view)){ i32 pos = 0; view_get_cursor_pos(app, view, &pos); view_set_mark(app, view, seek_pos(pos)); } } //////////////////////////////// typedef i32 View_Split_Kind; enum{ ViewSplitKind_Ratio, ViewSplitKind_FixedPixels, }; static b32 view_set_split(Application_Links *app, View_ID view, View_Split_Kind kind, f32 t){ b32 result = false; if (view != 0){ Panel_ID panel_id = 0; if (view_get_panel(app, view, &panel_id)){ Panel_ID parent_panel_id = 0; if (panel_get_parent(app, panel_id, &parent_panel_id)){ Panel_ID min_child_id = 0; if (panel_get_child(app, parent_panel_id, PanelChild_Min, &min_child_id)){ b32 panel_is_min = (min_child_id == panel_id); Panel_Split_Kind panel_kind = ((kind == ViewSplitKind_Ratio)? (panel_is_min?PanelSplitKind_Ratio_Min:PanelSplitKind_Ratio_Max): (panel_is_min?PanelSplitKind_FixedPixels_Min:PanelSplitKind_FixedPixels_Max)); result = panel_set_split(app, parent_panel_id, panel_kind, t); } } } } return(result); } static b32 view_set_split_proportion(Application_Links *app, View_ID view, f32 t){ return(view_set_split(app, view, ViewSplitKind_Ratio, t)); } static b32 view_set_split_pixel_size(Application_Links *app, View_ID view, i32 t){ return(view_set_split(app, view, ViewSplitKind_FixedPixels, (f32)t)); } //////////////////////////////// static Record_Info get_single_record(Application_Links *app, Buffer_ID buffer_id, History_Record_Index index){ Record_Info record = {}; buffer_history_get_record_info(app, buffer_id, index, &record); if (record.error == RecordError_NoError && record.kind == RecordKind_Group){ buffer_history_get_group_sub_record(app, buffer_id, index, record.group.count - 1, &record); } return(record); } //////////////////////////////// static Vec2 draw_string(Application_Links *app, Face_ID font_id, String_Const_u8 string, Vec2 p, int_color color){ return(draw_string(app, font_id, string, p, color, 0, V2(1.f, 0.f))); } static void draw_margin(Application_Links *app, f32_Rect outer, f32_Rect inner, int_color color){ draw_rectangle(app, f32R(outer.x0, outer.y0, outer.x1, inner.y0), color); draw_rectangle(app, f32R(outer.x0, inner.y1, outer.x1, outer.y1), color); draw_rectangle(app, f32R(outer.x0, inner.y0, inner.x0, inner.y1), color); draw_rectangle(app, f32R(inner.x1, inner.y0, outer.x1, inner.y1), color); } //////////////////////////////// static f32_Rect_Pair split_rect(f32_Rect rect, View_Split_Kind kind, Coordinate coord, Side from_side, f32 t){ f32_Rect_Pair result = {}; if (kind == ViewSplitKind_FixedPixels){ result.E[0] = rect; result.E[1] = rect; if (coord == Coordinate_X){ result.E[0].x1 = (from_side == Side_Max) ? (rect.x1 - t) : (rect.x0 + t); result.E[1].x0 = result.E[0].x1; } else{ Assert(coord == Coordinate_Y); result.E[0].y1 = (from_side == Side_Max) ? (rect.y1 - t) : (rect.y0 + t); result.E[1].y0 = result.E[0].y1; } } else{ Assert(kind == ViewSplitKind_Ratio); f32 pixel_count; if (coord == Coordinate_X){ pixel_count = t*(rect.x1 - rect.x0); } else{ Assert(coord == Coordinate_Y); pixel_count = t*(rect.y1 - rect.y0); } result = split_rect(rect, ViewSplitKind_FixedPixels, coord, from_side, pixel_count); } return(result); } //////////////////////////////// static f32 get_dpi_scaling_value(Application_Links *app){ // TODO(casey): Allen, this should return the multiplier for the display relative to whatever 4coder // gets tuned to. f32 result = 2.0f; return(result); } //////////////////////////////// // TODO(allen): REWRITE THIS EXACTLY HOW YOU WANT IT --- start --- static Child_Process_Set_Target_Flags flags_system_command(Command_Line_Interface_Flag flags){ Child_Process_Set_Target_Flags set_buffer_flags = 0; if (!HasFlag(flags, CLI_OverlapWithConflict)){ set_buffer_flags |= ChildProcessSet_FailIfBufferAlreadyAttachedToAProcess; } if (HasFlag(flags, CLI_CursorAtEnd)){ set_buffer_flags |= ChildProcessSet_CursorAtEnd; } return(set_buffer_flags); } static b32 set_buffer_system_command(Application_Links *app, Child_Process_ID process, Buffer_ID buffer, Command_Line_Interface_Flag flags){ b32 result = false; Child_Process_Set_Target_Flags set_buffer_flags = flags_system_command(flags); if (child_process_set_target_buffer(app, process, buffer, set_buffer_flags)){ i32 buffer_size = 0; buffer_get_size(app, buffer, &buffer_size); buffer_replace_range(app, buffer, make_range(0, buffer_size), string_u8_litexpr("")); if (HasFlag(flags, CLI_SendEndSignal)){ buffer_send_end_signal(app, buffer); } result = true; } return(result); } static b32 exec_system_command(Application_Links *app, View_ID view, Buffer_Identifier buffer_id, String_Const_u8 path, String_Const_u8 command, Command_Line_Interface_Flag flags){ b32 result = false; Child_Process_ID child_process_id = 0; if (create_child_process(app, path, command, &child_process_id)){ result = true; Buffer_ID buffer_attach_id = buffer_identifier_to_id_create_out_buffer(app, buffer_id); if (buffer_attach_id != 0){ if (set_buffer_system_command(app, child_process_id, buffer_attach_id, flags)){ if (view != 0){ view_set_buffer(app, view, buffer_attach_id, 0); } } } } return(result); } // TODO(allen): --- end --- // BOTTOM