LEL is able to position right/left/top/bottom and expand out too.

combat_ui.cpp

@@ -10,7 +10,6 @@ namespace gui {
   {
     bool good = $layout.parse(
         "[attack1 | attack2 | attack3 | heal]"
-        "[move1 | move2 | move3 | move4]"
         );
 
     dbc::check(good, "failed to parse combat layout");
@@ -19,7 +18,7 @@ namespace gui {
       sf::RectangleShape button;
       button.setPosition({float(cell.x + 10), float(cell.y + 10)});
       button.setSize({float(cell.w - 20), float(cell.h - 20)});
-      button.setFillColor({uint8_t(cell.col * 75), 100, 100});
+      button.setFillColor({100, 100, 100});
       button.setOutlineColor({200, 200, 200});
       button.setOutlineThickness(5);
       $shapes[name] = button;

lel.cpp

@@ -20,18 +20,20 @@ void LELParser::col() {
 }
 
 void LELParser::valign(char dir) {
-  cur.top = dir == '^';
+  cur.bottom = dir == '.';
 }
 
 void LELParser::align(char dir) {
-  cur.left = dir == '<';
+  cur.right = dir == '>';
 }
 
 void LELParser::id(std::string name) {
-  dbc::check(!cells.contains(name),
-      fmt::format("duplicate cell name {}", name));
+  if(name != "_") {
+    dbc::check(!cells.contains(name),
+        fmt::format("duplicate cell name {}", name));
+    cells.insert_or_assign(name, cur);
+  }
 
-  cells.insert_or_assign(name, cur);
   cur = {cur.col + 1, cur.row};
 }
 
@@ -67,8 +69,16 @@ void LELParser::finalize() {
     cell.max_w = cell.max_w == 0 ? cell_width : cell.max_w;
     cell.max_h = cell.max_h == 0 ? cell_height : cell.max_h;
 
-    cell.w = cell.expand ? cell.max_w : std::min(cell_width, cell.max_w);
-    cell.h = cell.expand ? cell.max_h : std::min(cell_height, cell.max_h);
+    cell.w = cell.expand ? std::min(cell.max_w, grid_w) : std::min(cell_width, cell.max_w);
+    cell.h = cell.expand ? std::min(cell.max_h, grid_h) : std::min(cell_height, cell.max_h);
+
+    if(cell.right) {
+      cell.x += cell_width - cell.w;
+    }
+
+    if(cell.bottom) {
+      cell.y += cell_height - cell.h;
+    }
 
     dbc::check(cell.h > 0, fmt::format("invalid height cell {}", name));
     dbc::check(cell.w > 0, fmt::format("invalid width cell {}", name));

lel.hpp

@@ -11,8 +11,8 @@ struct Cell {
   int max_h = 0;
   int col = 0;
   int row = 0;
-  bool left = true;
-  bool top = true;
+  bool right = false;
+  bool bottom = false;
   bool expand = false;
 
   Cell(int col, int row) : col(col), row(row) {}

tests/lel.cpp

@@ -11,20 +11,20 @@ TEST_CASE("test basic ops", "[lel]") {
   LELParser parser(0, 0, 500, 500);
   std::vector<std::string> labels{
     "label_1", "label3", "text1", "people",
-      "label2", "_", "message", "buttons"};
+      "label2", "message", "buttons"};
 
   bool good = parser.parse(
      "[ label_1         | label3      | test1]"
-     "[ *(300,300)text1 | (150)people | test2]"
-     "[ >label2         | _           | test3]"
+     "[ *(300,300)text1 | (150)people | ^test2]"
+     "[ >label2         | _           | .test3]"
      "[ message         | buttons     | test4]");
 
   REQUIRE(good);
 
   REQUIRE(parser.rows == 4);
   REQUIRE(parser.columns == 3);
-  REQUIRE(parser.cells.size() == 12);
-  REQUIRE(parser.cells.at("label2").left == false);
+  REQUIRE(parser.cells.size() == 11);
+  REQUIRE(parser.cells.at("label2").right == true);
   REQUIRE(parser.cells.at("text1").expand == true);
   REQUIRE(parser.cells.at("text1").w == 300);
   REQUIRE(parser.cells.at("text1").h == 300);
@@ -34,8 +34,8 @@ TEST_CASE("test basic ops", "[lel]") {
   for(auto name : labels) {
     auto& cell = parser.cells.at(name);
 
-    fmt::println("name={}; col/row={},{}; x/y={},{} w/h={},{}; left={}, top={}, expand={}",
-       name, cell.col, cell.row, cell.x, cell.y, cell.w, cell.h, cell.left, cell.top, cell.expand);
+    fmt::println("name={}; col/row={},{}; x/y={},{} w/h={},{}; right={}, bottom={}, expand={}",
+       name, cell.col, cell.row, cell.x, cell.y, cell.w, cell.h, cell.right, cell.bottom, cell.expand);
 
     REQUIRE(cell.w > 0);
     REQUIRE(cell.h > 0);