Add dashed arrow.

src/input_output_test.cpp

@@ -58,26 +58,29 @@ int main(int, const char**) {
         continue;
       }
 
-      std::cout << "  [RUN ] " << test.path() << std::endl;
       std::string input = ReadFile(test.path() / "input");
-      std::string output = ReadFile(test.path() / "output");
-
       std::string output_computed = translator->Translate(input, options);
 
-      if (output_computed == output) {
-        // std::cout << "  [PASS] " << test.path() << std::endl;
-      } else {
-        std::cout << "  [FAIL] " << test.path() << std::endl;
-        std::cout << "---[Output]------------------" << std::endl;
-        std::cout << output_computed << std::endl;
-        std::cout << "---[Expected]----------------" << std::endl;
-        std::cout << output << std::endl;
-        std::cout << "---------------------" << std::endl;
-
-        //std::ofstream(test.path() / "output") << output_computed;
+      if (!std::filesystem::exists(test.path() / "output")) {
+        std::cout << "  [RUN ] " << test.path() << std::endl;
+        std::cout << "  [Create output] " << std::endl;
+        std::cout << output_computed;
+        std::ofstream(test.path() / "output") << output_computed;
+        continue;
+      }
 
-        result = EXIT_FAILURE;
+      std::string output = ReadFile(test.path() / "output");
+      if (output_computed == output) {
+        continue;
       }
+
+      std::cout << "  [FAIL] " << test.path() << std::endl;
+      std::cout << "---[Output]------------------" << std::endl;
+      std::cout << output_computed << std::endl;
+      std::cout << "---[Expected]----------------" << std::endl;
+      std::cout << output << std::endl;
+      std::cout << "---------------------" << std::endl;
+      result = EXIT_FAILURE;
     }
   }
 

src/screen/Screen.cpp

@@ -90,7 +90,7 @@ void Screen::DrawHorizontalLine(int left, int right, int y, wchar_t c) {
 
 void Screen::DrawVerticalLine(int top, int bottom, int x, wchar_t c) {
   for (int y = top; y <= bottom; ++y) {
-    lines_[y][x] = L'│';
+    lines_[y][x] = c;
   }
 }
 

src/translator/sequence/Sequence.cpp

@@ -41,21 +41,19 @@ void Actor::Draw(Screen& screen, int height) {
 
 void Message::Draw(Screen& screen) {
   if (line_top == line_bottom) {
-    screen.DrawHorizontalLine(line_left, line_right, line_top);
+    screen.DrawHorizontalLine(line_left, line_right, line_top, dashed ? L'-' : L'─');
+  } else if (direction == Direction::Right) {
+    screen.DrawHorizontalLine(line_left, line_left + offset, line_top, dashed ? L'-' : L'─');
+    screen.DrawVerticalLine(line_top, line_bottom, line_left + offset, dashed ? L'|' : L'│');
+    screen.DrawHorizontalLine(line_left + offset, line_right, line_bottom, dashed ? L'-' : L'─');
+    screen.DrawPixel(line_left + offset, line_top, dashed ? L'.' : L'┐');
+    screen.DrawPixel(line_left + offset, line_bottom, dashed ? L'`' : L'└');
   } else {
-    if (direction == Direction::Right) {
-      screen.DrawHorizontalLine(line_left, line_left + offset, line_top);
-      screen.DrawVerticalLine(line_top, line_bottom, line_left + offset);
-      screen.DrawHorizontalLine(line_left + offset, line_right, line_bottom);
-      screen.DrawPixel(line_left + offset, line_top, L'┐');
-      screen.DrawPixel(line_left + offset, line_bottom, L'└');
-    } else {
-      screen.DrawHorizontalLine(line_right - offset, line_right, line_top);
-      screen.DrawVerticalLine(line_top, line_bottom, line_right - offset);
-      screen.DrawHorizontalLine(line_left, line_right - offset, line_bottom);
-      screen.DrawPixel(line_right - offset, line_top, L'┌');
-      screen.DrawPixel(line_right - offset, line_bottom, L'┘');
-    }
+    screen.DrawHorizontalLine(line_right - offset, line_right, line_top, dashed ? L'-' : L'─');
+    screen.DrawVerticalLine(line_top, line_bottom, line_right - offset, dashed ? L'|' : L'│');
+    screen.DrawHorizontalLine(line_left, line_right - offset, line_bottom, dashed ? L'-' : L'─');
+    screen.DrawPixel(line_right - offset, line_top, L'.');
+    screen.DrawPixel(line_right - offset, line_bottom, L'`');
   }
 
   // Tip of the arrow.
@@ -464,6 +462,8 @@ void Sequence::AddMessageCommand(
 
   message.from = GetText(message_command->text(0));
   message.to = GetText(message_command->text(1));
+  message.dashed = message_command->arrow()->ARROW_LEFT_DASHED() != nullptr ||
+                   message_command->arrow()->ARROW_RIGHT_DASHED() != nullptr;
 
   if (message.from == message.to) {
     std::cerr << "Self messages are not supported yet. It has been ignored."
@@ -473,7 +473,8 @@ void Sequence::AddMessageCommand(
     return;
   }
 
-  if (message_command->arrow()->ARROW_LEFT()) {
+  if (message_command->arrow()->ARROW_LEFT() ||
+      message_command->arrow()->ARROW_LEFT_DASHED()) {
     std::swap(message.from, message.to);
   }
 

src/translator/sequence/Sequence.g4

@@ -8,7 +8,9 @@ COMMENT: '/' '*' .*? '*' '/' -> channel(HIDDEN);
 LINE_COMMENT: '/' '/' (~('\n'))* -> channel(HIDDEN);
 
 ARROW_RIGHT: '->';
+ARROW_RIGHT_DASHED: '-->';
 ARROW_LEFT: '<-';
+ARROW_LEFT_DASHED: '<--';
 COMMA: ':';
 LOWER: '<';
 GREATER: '>';
@@ -39,5 +41,5 @@ number: SPACE* NUMBER SPACE*;
 
 comparison: LOWER | GREATER;
 
-arrow: ARROW_LEFT | ARROW_RIGHT;
+arrow: ARROW_LEFT | ARROW_RIGHT | ARROW_LEFT_DASHED | ARROW_RIGHT_DASHED;
 // vim: filetype=ANTLR

src/translator/sequence/Sequence.hpp

@@ -42,6 +42,7 @@ struct Message {
   std::wstring to;
   int id = -1;
   std::vector<std::wstring> messages;
+  bool dashed = false;
 
   Direction direction = Direction::Right;
 

test/Sequence/basic_dashed/input

@@ -0,0 +1,4 @@
+A --> B: Make me a sandwitch
+B --> A: No
+A --> B: Sudo make me a sandwitch
+B --> A: Okay

test/Sequence/basic_dashed/output

@@ -0,0 +1,18 @@
+┌─┐                      ┌─┐
+│A│                      │B│
+└┬┘                      └┬┘
+ │                        │ 
+ │  Make me a sandwitch   │ 
+ │----------------------->│ 
+ │                        │ 
+ │           No           │ 
+ │<-----------------------│ 
+ │                        │ 
+ │Sudo make me a sandwitch│ 
+ │----------------------->│ 
+ │                        │ 
+ │          Okay          │ 
+ │<-----------------------│ 
+┌┴┐                      ┌┴┐
+│A│                      │B│
+└─┘                      └─┘

test/Sequence/interleaved_complex_dashed/input

@@ -0,0 +1,8 @@
+1) A-->B: message 1
+2) A-->B: message 2
+3) A-->B: message 3
+4) A-->B: message 4
+5) A-->B: message 5
+
+A: 1<2<3<4<5
+B: 2<1<5<4<3

test/Sequence/interleaved_complex_dashed/output

@@ -0,0 +1,24 @@
+┌─┐       ┌─┐
+│A│       │B│
+└┬┘       └┬┘
+ │         │ 
+ │--.      │ 
+ │message 2│ 
+ │-------->│ 
+ │  |      │ 
+ │message 1│ 
+ │  `----->│ 
+ │         │ 
+ │----.    │ 
+ │--. |    │ 
+ │message 5│ 
+ │-------->│ 
+ │  | |    │ 
+ │message 4│ 
+ │  `----->│ 
+ │    |    │ 
+ │message 3│ 
+ │    `--->│ 
+┌┴┐       ┌┴┐
+│A│       │B│
+└─┘       └─┘

test/Sequence/interleaved_dashed/input

@@ -0,0 +1,6 @@
+1) A --> B : message 1
+2) A --> B : message 2
+3) A <-- B : message 3
+
+A: 1<2
+B: 1>2

test/Sequence/interleaved_dashed/output

@@ -0,0 +1,16 @@
+┌─┐       ┌─┐
+│A│       │B│
+└┬┘       └┬┘
+ │         │ 
+ │--.      │ 
+ │message 2│ 
+ │-------->│ 
+ │  |      │ 
+ │message 1│ 
+ │  `----->│ 
+ │         │ 
+ │message 3│ 
+ │<--------│ 
+┌┴┐       ┌┴┐
+│A│       │B│
+└─┘       └─┘