gui.color: don't crash when colors aren't supported - ranger - mirror of ranger

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author	hut <hut@lepus.uberspace.de>	2015-08-04 12:13:24 +0200
committer	hut <hut@lepus.uberspace.de>	2015-10-04 01:21:57 +0200
commit	2aa3b9dd82b64e79a3d4027727afbbb881ccb3b3 (patch)
tree	37a24b8304fc7fea40dd08e39d1276ec46e5edb6 /examples/rifle_sxiv.sh
parent	a14663243487dfe62e6bf16dddeb2a0fe3885d5d (diff)
download	ranger-2aa3b9dd82b64e79a3d4027727afbbb881ccb3b3.tar.gz

gui.color: don't crash when colors aren't supported

Diffstat (limited to 'examples/rifle_sxiv.sh')

0 files changed, 0 insertions, 0 deletions

//: Clean syntax to manipulate and check the screen in scenarios. //: Instructions 'assume-screen' and 'screen-should-contain' implicitly create //: a variable called 'screen' that is accessible inside other 'run' //: instructions in the scenario. 'screen-should-contain' can check unicode //: characters in the fake screen :(scenarios run_mu_scenario) :(scenario screen_in_scenario) scenario screen-in-scenario [ #? $start-tracing #? 2 assume-screen 5:literal/width, 3:literal/height run [ screen:address <- print-character screen:address, 97:literal # 'a' ] screen-should-contain [ # 01234 .a . . . . . ] #? $exit #? 1 ] :(scenario screen_in_scenario_unicode) scenario screen-in-scenario-unicode-color [ assume-screen 5:literal/width, 3:literal/height run [ screen:address <- print-character screen:address, 955:literal/greek-small-lambda, 1:literal/red screen:address <- print-character screen:address, 97:literal/a ] screen-should-contain [ # 01234 .λa . . . . . ] #? $exit ] :(scenario screen_in_scenario_color) # screen-should-contain can check unicode characters in the fake screen scenario screen-in-scenario-color [ assume-screen 5:literal/width, 3:literal/height run [ screen:address <- print-character screen:address, 955:literal/greek-small-lambda, 1:literal/red screen:address <- print-character screen:address, 97:literal/a, 7:literal/white ] # screen-should-contain shows everything screen-should-contain [ # 01234 .λa . . . . . ] # screen-should-contain-in-color filters out everything except the given # color, all you see is the 'a' in white. screen-should-contain-in-color 7:literal/white, [ # 01234 . a . . . . . ] # ..and the λ in red. screen-should-contain-in-color 1:literal/red, [ # 01234 .λ . . . . . ] #? $exit ] :(scenario screen_in_scenario_error) % Scenario_testing_scenario = true; % Hide_warnings = true; scenario screen-in-scenario-error [ assume-screen 5:literal/width, 3:literal/height run [ screen:address <- print-character screen:address, 97:literal # 'a' ] screen-should-contain [ # 01234 .b . . . . . ] ] +warn: expected screen location (0, 0) to contain 98 ('b') instead of 97 ('a') :(scenario screen_in_scenario_color_error) % Scenario_testing_scenario = true; % Hide_warnings = true; # screen-should-contain can check unicode characters in the fake screen scenario screen-in-scenario-color [ assume-screen 5:literal/width, 3:literal/height run [ screen:address <- print-character screen:address, 97:literal/a, 1:literal/red ] screen-should-contain-in-color 2:literal/green, [ # 01234 .a . . . . . ] ] +warn: expected screen location (0, 0) to be in color 2 instead of 1 //: allow naming just for 'screen' :(before "End is_special_name Cases") if (s == "screen") return true; :(scenarios run) :(scenario convert_names_does_not_warn_when_mixing_special_names_and_numeric_locations) % Scenario_testing_scenario = true; % Hide_warnings = true; recipe main [ screen:number <- copy 1:number ] -warn: mixing variable names and numeric addresses in main $warn: 0 :(scenarios run_mu_scenario) :(before "End Globals") // Scenarios may not define default-space, so they should fit within the // initial area of memory reserved for tests. We'll put the predefined // variables available to them at the end of that region. const long long int Max_variables_in_scenarios = Reserved_for_tests-100; long long int Next_predefined_global_for_scenarios = Max_variables_in_scenarios; :(before "End Setup") assert(Next_predefined_global_for_scenarios < Reserved_for_tests); :(after "transform_all()" following "case RUN:") // There's a restriction on the number of variables 'run' can use, so that // it can avoid colliding with the dynamic allocator in case it doesn't // initialize a default-space. assert(Name[tmp_recipe.at(0)][""] < Max_variables_in_scenarios); :(before "End Globals") // Scenario Globals. const long long int SCREEN = Next_predefined_global_for_scenarios++; // End Scenario Globals. :(before "End Special Scenario Variable Names(r)") Name[r]["screen"] = SCREEN; :(before "End Rewrite Instruction(curr)") // rewrite `assume-screen width, height` to // `screen:address <- new-fake-screen width, height` //? cout << "before: " << curr.to_string() << '\n'; //? 1 if (curr.name == "assume-screen") { curr.operation = Recipe_ordinal["new-fake-screen"]; curr.name = "new-fake-screen"; assert(curr.operation); assert(curr.products.empty()); curr.products.push_back(reagent("screen:address")); curr.products.at(0).set_value(SCREEN); //? cout << "after: " << curr.to_string() << '\n'; //? 1 //? cout << "AAA " << Recipe_ordinal["new-fake-screen"] << '\n'; //? 1 } //: screen-should-contain is a regular instruction :(before "End Primitive Recipe Declarations") SCREEN_SHOULD_CONTAIN, :(before "End Primitive Recipe Numbers") Recipe_ordinal["screen-should-contain"] = SCREEN_SHOULD_CONTAIN; :(before "End Primitive Recipe Implementations") case SCREEN_SHOULD_CONTAIN: { if (!Passed) break; check_screen(current_instruction().ingredients.at(0).name, -1); break; } :(before "End Primitive Recipe Declarations") SCREEN_SHOULD_CONTAIN_IN_COLOR, :(before "End Primitive Recipe Numbers") Recipe_ordinal["screen-should-contain-in-color"] = SCREEN_SHOULD_CONTAIN_IN_COLOR; :(before "End Primitive Recipe Implementations") case SCREEN_SHOULD_CONTAIN_IN_COLOR: { if (!Passed) break; assert(scalar(ingredients.at(0))); check_screen(current_instruction().ingredients.at(1).name, ingredients.at(0).at(0)); break; } :(before "End Types") // scan an array of characters in a unicode-aware, bounds-checked manner struct raw_string_stream { long long int index; const long long int max; const char* buf; raw_string_stream(const string&); uint32_t get(); // unicode codepoint uint32_t peek(); // unicode codepoint bool at_end() const; void skip_whitespace_and_comments(); }; :(code) void check_screen(const string& expected_contents, const int color) { //? cerr << "Checking screen for color " << color << "\n"; //? 2 assert(!Current_routine->calls.front().default_space); // not supported long long int screen_location = Memory[SCREEN]; int data_offset = find_element_name(Type_ordinal["screen"], "data"); assert(data_offset >= 0); long long int screen_data_location = screen_location+data_offset; // type: address:array:character long long int screen_data_start = Memory[screen_data_location]; // type: array:character int width_offset = find_element_name(Type_ordinal["screen"], "num-columns"); long long int screen_width = Memory[screen_location+width_offset]; int height_offset = find_element_name(Type_ordinal["screen"], "num-rows"); long long int screen_height = Memory[screen_location+height_offset]; raw_string_stream cursor(expected_contents); // todo: too-long expected_contents should fail long long int addr = screen_data_start+1; // skip length //? cerr << "screen height " << screen_height << '\n'; //? 1 for (long long int row = 0; row < screen_height; ++row) { //? cerr << "row: " << row << '\n'; //? 3 //? cerr << "contents: " << cursor.buf+cursor.index << "$\n"; //? 1 cursor.skip_whitespace_and_comments(); if (cursor.at_end()) break; //? cerr << "row2\n"; //? 2 assert(cursor.get() == '.'); for (long long int column = 0; column < screen_width; ++column, addr+= /*size of screen-cell*/2) { const int cell_color_offset = 1; uint32_t curr = cursor.get(); //? cerr << "col: " << column << '\n'; //? 1 if (Memory[addr] == 0 && isspace(curr)) continue; //? cerr << color << " vs " << Memory[addr+1] << '\n'; //? 1 if (curr == ' ' && color != -1 && color != Memory[addr+cell_color_offset]) { // filter out other colors continue; } //? cerr << "col3 " << column << ": " << Memory[addr] << " " << curr << '\n'; //? 1 if (Memory[addr] != 0 && Memory[addr] == curr) { //? cerr << "col4\n"; //? 1 if (color == -1 || color == Memory[addr+cell_color_offset]) continue; //? cerr << "col5: " << column << '\n'; //? 1 // contents match but color is off if (Current_scenario && !Scenario_testing_scenario) { // genuine test in a mu file raise << "\nF - " << Current_scenario->name << ": expected screen location (" << row << ", " << column << ", address " << addr << ", value " << Memory[addr] << ") to be in color " << color << " instead of " << Memory[addr+cell_color_offset] << "\n"; } else { // just testing check_screen raise << "expected screen location (" << row << ", " << column << ") to be in color " << color << " instead of " << Memory[addr+cell_color_offset] << '\n'; } if (!Scenario_testing_scenario) { Passed = false; ++Num_failures; } return; } //? cerr << "col6 " << column << ": " << Memory[addr] << " " << curr << '\n'; //? 1 // really a mismatch // can't print multi-byte unicode characters in warnings just yet. not very useful for debugging anyway. char expected_pretty[10] = {0}; if (curr < 256 && !iscntrl(curr)) { // " ('<curr>')" expected_pretty[0] = ' ', expected_pretty[1] = '(', expected_pretty[2] = '\'', expected_pretty[3] = static_cast<unsigned char>(curr), expected_pretty[4] = '\'', expected_pretty[5] = ')', expected_pretty[6] = '\0'; } char actual_pretty[10] = {0}; if (Memory[addr] < 256 && !iscntrl(Memory[addr])) { // " ('<curr>')" actual_pretty[0] = ' ', actual_pretty[1] = '(', actual_pretty[2] = '\'', actual_pretty[3] = static_cast<unsigned char>(Memory[addr]), actual_pretty[4] = '\'', actual_pretty[5] = ')', actual_pretty[6] = '\0'; } if (Current_scenario && !Scenario_testing_scenario) { // genuine test in a mu file raise << "\nF - " << Current_scenario->name << ": expected screen location (" << row << ", " << column << ") to contain " << curr << expected_pretty << " instead of " << Memory[addr] << actual_pretty << '\n'; dump_screen(); } else { // just testing check_screen raise << "expected screen location (" << row << ", " << column << ") to contain " << curr << expected_pretty << " instead of " << Memory[addr] << actual_pretty << '\n'; } if (!Scenario_testing_scenario) { Passed = false; ++Num_failures; } return; } assert(cursor.get() == '.'); } cursor.skip_whitespace_and_comments(); assert(cursor.at_end()); } raw_string_stream::raw_string_stream(const string& backing) :index(0), max(backing.size()), buf(backing.c_str()) {} bool raw_string_stream::at_end() const { //? cerr << index << ' ' << max << '\n'; //? 1 //? cerr << buf << "$\n"; //? 1 if (index >= max) return true; if (tb_utf8_char_length(buf[index]) > max-index) { raise << "unicode string seems corrupted at index "<< index << " character " << static_cast<int>(buf[index]) << '\n'; return true; } return false; } uint32_t raw_string_stream::get() { assert(index < max); // caller must check bounds before calling 'get' uint32_t result = 0; int length = tb_utf8_char_to_unicode(&result, &buf[index]); assert(length != TB_EOF); index += length; return result; } uint32_t raw_string_stream::peek() { assert(index < max); // caller must check bounds before calling 'get' uint32_t result = 0; int length = tb_utf8_char_to_unicode(&result, &buf[index]); assert(length != TB_EOF); return result; } void raw_string_stream::skip_whitespace_and_comments() { while (!at_end()) { if (isspace(peek())) get(); else if (peek() == '#') { // skip comment get(); while (peek() != '\n') get(); // implicitly also handles CRLF } else break; } } :(before "End Primitive Recipe Declarations") _DUMP_SCREEN, :(before "End Primitive Recipe Numbers") Recipe_ordinal["$dump-screen"] = _DUMP_SCREEN; :(before "End Primitive Recipe Implementations") case _DUMP_SCREEN: { dump_screen(); break; } :(code) void dump_screen() { assert(!Current_routine->calls.front().default_space); // not supported long long int screen_location = Memory[SCREEN]; int width_offset = find_element_name(Type_ordinal["screen"], "num-columns"); long long int screen_width = Memory[screen_location+width_offset]; int height_offset = find_element_name(Type_ordinal["screen"], "num-rows"); long long int screen_height = Memory[screen_location+height_offset]; int data_offset = find_element_name(Type_ordinal["screen"], "data"); assert(data_offset >= 0); long long int screen_data_location = screen_location+data_offset; // type: address:array:character long long int screen_data_start = Memory[screen_data_location]; // type: array:character //? cerr << "data start: " << screen_data_start << '\n'; //? 1 assert(Memory[screen_data_start] == screen_width*screen_height); long long int curr = screen_data_start+1; // skip length for (long long int row = 0; row < screen_height; ++row) { //? cerr << curr << ":\n"; //? 2 cerr << '.'; for (long long int col = 0; col < screen_width; ++col) { if (Memory[curr]) cerr << to_unicode(Memory[curr]); else cerr << ' '; curr += /*size of screen-cell*/2; } cerr << ".\n"; } }


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