Execute a Markov algorithm: Difference between revisions

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@@ Line 1,006: / Line 1,006: @@
 void main() {
-    auto rules = split(splitLines(cast(string)read("res/markov_rules.txt")), "");
+    string[][] rules = readText("markov_rules.txt").splitLines().
+                       split("");
-    auto tests = splitLines(cast(string)read("res/markov_tests.txt"));
+    string[] tests = readText("markov_tests.txt").splitLines();
-    enum regex = ctRegex!(r"^([^#]*?)\s+->\s+(\.?)(.*)"); // compile time regex creation
+    assert(tests.length == rules.length);
+    // Faster to compile run-time regex
+    //auto regex = regex(r"^([^#]*?)\s+->\s+(\.?)(.*)");
+    // Compile-time regex creation
+    // DMD 2.059 uses about 130 MB RAM to compile this
+    enum regex = ctRegex!(r"^([^#]*?)\s+->\s+(\.?)(.*)");
     foreach (i, test; tests) {
         string[][] capt;
         foreach (line; rules[i]) {
-            auto m = match(line, regex);
+            auto m = line.match(regex);
-            if (!m.empty) capt ~= array(m.captures)[1 .. $];
+            if (!m.empty)
+                capt ~= m.captures.array()[1 .. $];
-        }
-        REDO: auto copy = test;
+        }
+        REDO:
+        auto copy = test;
         foreach (c; capt) {
             test = test.replace(c[0], c[2]);
-            if (c[1] == ".") break;
+            if (c[1] == ".")
-            if (test != copy) goto REDO;
+                break;
+            if (test != copy)
+                goto REDO;
         }
         writeln(test);
     }