timew: Renamed grammar files, added rule.grammar

src/rule.grammar

@@ -0,0 +1,38 @@
+# Timewarrior grammar definition.
+
+# Conventions:
+# - Literals are always double-quoted.
+# - "*", "+" and "?" suffixes have POSIX semantics.
+# - "є" means empty set.
+# - Lower-level primitives are barewords.
+# - Literal modifiers:
+#   - :a  Accept abbreviations
+#   - :i  Accept caseless match
+# - Blank line between rules.
+
+# Left associative:
+#  A -> A <op> B
+#       B
+#
+# Right associative:
+#  A -> B <op> A
+#       B
+
+rule:
+  config_rule
+  exclusion_rule
+  event_rule
+  tag_rule
+
+config_rule:
+  "define" "configuration"
+
+exclusion_rule:
+  "define" "exclusions"
+
+event_rule:
+  "define" "rule"
+
+tag_rule:
+  "define" "tag"
+

src/timew.cpp

@@ -50,19 +50,29 @@ int main (int argc, const char** argv)
       // TODO Load CLI grammar.
       // TODO Load from string, else file on config override.
       // TODO Migrate from loading a grammar from file, to a default string.
-      File file ("./grammar.cfg");
+      File cliFile ("./cli.grammar");
-      Grammar grammar;
+      Grammar cliGrammar;
-      grammar.loadFromFile (file);
+      cliGrammar.loadFromFile (cliFile);
-      std::cout << grammar.dump ();
+      std::cout << cliGrammar.dump ();
 
       // Instantiate the parser.
-      LR0 lr0;
+      LR0 cliParser;
-      lr0.createParseTables (grammar);
+      cliParser.createParseTables (cliGrammar);
-      std::cout << lr0.dump ();
+      std::cout << cliParser.dump ();
 
       // TODO Parse CLI.
 
-      // TODO Load rules grammar.
+      // TODO Load rule grammar.
+      File ruleFile ("./rule.grammar");
+      Grammar ruleGrammar;
+      ruleGrammar.loadFromFile (ruleFile);
+      std::cout << ruleGrammar.dump ();
+
+      // Instantiate the parser.
+      LR0 ruleParser;
+      ruleParser.createParseTables (ruleGrammar);
+      std::cout << ruleParser.dump ();
+
       // TODO Load rules.
       // TODO Parse rules.