Add support for character terminal group rules

4 files changed, 259 insertions, 180 deletions

diff --git a/src/lex.cpp b/src/lex.cpp
index 29bdd4e..16b3eb9 100644
--- a/src/lex.cpp
+++ b/src/lex.cpp
@@ -309,6 +309,7 @@ int lex_t::lex(parse_token_value_t *value) {
 		case '=':
 		case '(':
 		case ')':
+		case '.':
 			token = current();
 			next(true);
 			consume(false);
diff --git a/src/parse.cpp b/src/parse.cpp
index bad9e24..a0ce970 100644
--- a/src/parse.cpp
+++ b/src/parse.cpp
@@ -13,10 +13,6 @@ static inline void free_symbol(solar::symbol_t *v) {
 	delete v;
 }
 
-static inline void free_rule(solar::rule_t *v) {
-	delete v;
-}
-
 static inline void free_rhs(rhs_t *v) {
 	delete v;
 }
@@ -26,7 +22,6 @@ typedef union parse_symbol_value {
 	parse_token_value_t token;
 	std::string *symbol_action;
 	rhs_t *symbol_rhs;
-	solar::rule_t *symbol_rule;
 	solar::symbol_t *symbol_symbol;
 	solar::symbol_t *symbol_term;
 	std::string *symbol_varname;
@@ -79,11 +74,17 @@ static inline void parse_reduce_8(std::string *type, std::string *name, __attrib
 	grammar->extra_args.push_back(std::make_pair(*type, *name));
 }
 
-static inline void parse_reduce_9(solar::rule_t *rule, __attribute__((unused)) solar::grammar_t *grammar) {
-	grammar->add_rule(*rule);
+static inline void parse_reduce_9(std::string *lhs, rhs_t *rhs, std::string *action, __attribute__((unused)) solar::grammar_t *grammar) {
+	grammar->add_rule({solar::item_t(*lhs, rhs->first), rhs->second, *action});
 }
 
-static inline solar::rule_t * parse_reduce_10(std::string *lhs, rhs_t *rhs, std::string *action, __attribute__((unused)) solar::grammar_t *grammar) {return new solar::rule_t {solar::item_t(*lhs, rhs->first), rhs->second, *action};}
+static inline void parse_reduce_10(std::string *lhs, unsigned char c1, unsigned char c2, __attribute__((unused)) solar::grammar_t *grammar) {
+	vars_t vars;
+	vars.emplace_back();
+
+	for (unsigned int c = c1; c <= c2; c++)
+		grammar->add_rule({solar::item_t(*lhs, {solar::symbol_t::make_char(c)}), vars, std::string()});
+}
 
 static inline rhs_t * parse_reduce_11(__attribute__((unused)) solar::grammar_t *grammar) {return new rhs_t();}
 
@@ -129,7 +130,7 @@ static inline solar::symbol_t * parse_reduce_20(solar::symbol_t *v, __attribute_
 
 static inline solar::symbol_t * parse_reduce_21(std::string *v, __attribute__((unused)) solar::grammar_t *grammar) {return new solar::symbol_t(solar::symbol_t::make_term(*v));}
 
-static inline solar::symbol_t * parse_reduce_22(char v, __attribute__((unused)) solar::grammar_t *grammar) {return new solar::symbol_t(solar::symbol_t::make_char(v));}
+static inline solar::symbol_t * parse_reduce_22(unsigned char v, __attribute__((unused)) solar::grammar_t *grammar) {return new solar::symbol_t(solar::symbol_t::make_char(v));}
 
 static inline std::string * parse_reduce_23(std::string *v, __attribute__((unused)) solar::grammar_t *grammar) {return v;}
 
@@ -154,11 +155,11 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 				return 0;
 
 			case TOK_SYMBOL:
-				parser->stack[++parser->top].state = 4;
+				parser->stack[++parser->top].state = 3;
 				return 1;
 
 			case '%':
-				parser->stack[++parser->top].state = 5;
+				parser->stack[++parser->top].state = 4;
 				return 1;
 
 			default:
@@ -176,18 +177,8 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 
 		case 3:
 			switch (token) {
-			default:
-				parser->top -= 1;
-				parse_reduce_9(parser->stack[parser->top + 0].value.symbol_rule, grammar);
-				free_rule(parser->stack[parser->top + 0].value.symbol_rule);
-				parser->stack[++parser->top].state = 2;
-			}
-			break;
-
-		case 4:
-			switch (token) {
 			case '|':
-				parser->stack[++parser->top].state = 6;
+				parser->stack[++parser->top].state = 5;
 				return 1;
 
 			default:
@@ -195,26 +186,26 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 5:
+		case 4:
 			switch (token) {
 			case 'd':
-				parser->stack[++parser->top].state = 7;
+				parser->stack[++parser->top].state = 6;
 				return 1;
 
 			case 'e':
-				parser->stack[++parser->top].state = 8;
+				parser->stack[++parser->top].state = 7;
 				return 1;
 
 			case 'h':
-				parser->stack[++parser->top].state = 9;
+				parser->stack[++parser->top].state = 8;
 				return 1;
 
 			case 's':
-				parser->stack[++parser->top].state = 10;
+				parser->stack[++parser->top].state = 9;
 				return 1;
 
 			case 't':
-				parser->stack[++parser->top].state = 11;
+				parser->stack[++parser->top].state = 10;
 				return 1;
 
 			default:
@@ -222,10 +213,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 6:
+		case 5:
 			switch (token) {
 			case '=':
-				parser->stack[++parser->top].state = 12;
+				parser->stack[++parser->top].state = 11;
 				return 1;
 
 			default:
@@ -233,10 +224,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 7:
+		case 6:
 			switch (token) {
 			case 'e':
-				parser->stack[++parser->top].state = 13;
+				parser->stack[++parser->top].state = 12;
 				return 1;
 
 			default:
@@ -244,10 +235,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 8:
+		case 7:
 			switch (token) {
 			case 'x':
-				parser->stack[++parser->top].state = 14;
+				parser->stack[++parser->top].state = 13;
 				return 1;
 
 			default:
@@ -255,10 +246,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 9:
+		case 8:
 			switch (token) {
 			case 'e':
-				parser->stack[++parser->top].state = 15;
+				parser->stack[++parser->top].state = 14;
 				return 1;
 
 			default:
@@ -266,10 +257,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 10:
+		case 9:
 			switch (token) {
 			case 'o':
-				parser->stack[++parser->top].state = 16;
+				parser->stack[++parser->top].state = 15;
 				return 1;
 
 			default:
@@ -277,10 +268,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 11:
+		case 10:
 			switch (token) {
 			case 'y':
-				parser->stack[++parser->top].state = 17;
+				parser->stack[++parser->top].state = 16;
 				return 1;
 
 			default:
@@ -288,16 +279,20 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 12:
+		case 11:
 			switch (token) {
+			case '(':
+				parser->stack[++parser->top].state = 18;
+				return 1;
+
 			default:
 				result.symbol_rhs = parse_reduce_11(grammar);
 				parser->stack[parser->top].value.symbol_rhs = result.symbol_rhs;
-				parser->stack[++parser->top].state = 18;
+				parser->stack[++parser->top].state = 17;
 			}
 			break;
 
-		case 13:
+		case 12:
 			switch (token) {
 			case 's':
 				parser->stack[++parser->top].state = 19;
@@ -308,7 +303,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 14:
+		case 13:
 			switch (token) {
 			case 't':
 				parser->stack[++parser->top].state = 20;
@@ -319,7 +314,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 15:
+		case 14:
 			switch (token) {
 			case 'a':
 				parser->stack[++parser->top].state = 21;
@@ -330,7 +325,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 16:
+		case 15:
 			switch (token) {
 			case 'u':
 				parser->stack[++parser->top].state = 22;
@@ -341,7 +336,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 17:
+		case 16:
 			switch (token) {
 			case 'p':
 				parser->stack[++parser->top].state = 23;
@@ -352,7 +347,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 18:
+		case 17:
 			switch (token) {
 			case TOK_BLOCK:
 				parser->stack[++parser->top].state = 27;
@@ -387,10 +382,21 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
+		case 18:
+			switch (token) {
+			case TOK_CHAR:
+				parser->stack[++parser->top].state = 34;
+				return 1;
+
+			default:
+				return -1;
+			}
+			break;
+
 		case 19:
 			switch (token) {
 			case 't':
-				parser->stack[++parser->top].state = 34;
+				parser->stack[++parser->top].state = 35;
 				return 1;
 
 			default:
@@ -401,7 +407,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 		case 20:
 			switch (token) {
 			case 'r':
-				parser->stack[++parser->top].state = 35;
+				parser->stack[++parser->top].state = 36;
 				return 1;
 
 			default:
@@ -412,7 +418,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 		case 21:
 			switch (token) {
 			case 'd':
-				parser->stack[++parser->top].state = 36;
+				parser->stack[++parser->top].state = 37;
 				return 1;
 
 			default:
@@ -423,7 +429,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 		case 22:
 			switch (token) {
 			case 'r':
-				parser->stack[++parser->top].state = 37;
+				parser->stack[++parser->top].state = 38;
 				return 1;
 
 			default:
@@ -434,7 +440,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 		case 23:
 			switch (token) {
 			case 'e':
-				parser->stack[++parser->top].state = 38;
+				parser->stack[++parser->top].state = 39;
 				return 1;
 
 			default:
@@ -446,19 +452,18 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			switch (token) {
 			default:
 				parser->top -= 5;
-				result.symbol_rule = parse_reduce_10(parser->stack[parser->top + 0].value.token.str, parser->stack[parser->top + 3].value.symbol_rhs, parser->stack[parser->top + 4].value.symbol_action, grammar);
+				parse_reduce_9(parser->stack[parser->top + 0].value.token.str, parser->stack[parser->top + 3].value.symbol_rhs, parser->stack[parser->top + 4].value.symbol_action, grammar);
 				free_string(parser->stack[parser->top + 0].value.token.str);
 				free_rhs(parser->stack[parser->top + 3].value.symbol_rhs);
 				free_string(parser->stack[parser->top + 4].value.symbol_action);
-				parser->stack[parser->top].value.symbol_rule = result.symbol_rule;
-				parser->stack[++parser->top].state = 3;
+				parser->stack[++parser->top].state = 2;
 			}
 			break;
 
 		case 25:
 			switch (token) {
 			case '(':
-				parser->stack[++parser->top].state = 39;
+				parser->stack[++parser->top].state = 40;
 				return 1;
 
 			default:
@@ -466,7 +471,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 				result.symbol_rhs = parse_reduce_12(parser->stack[parser->top + 0].value.symbol_rhs, parser->stack[parser->top + 1].value.symbol_symbol, grammar);
 				free_symbol(parser->stack[parser->top + 1].value.symbol_symbol);
 				parser->stack[parser->top].value.symbol_rhs = result.symbol_rhs;
-				parser->stack[++parser->top].state = 18;
+				parser->stack[++parser->top].state = 17;
 			}
 			break;
 
@@ -477,12 +482,12 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 				result.symbol_symbol = parse_reduce_20(parser->stack[parser->top + 0].value.symbol_term, grammar);
 				parser->stack[parser->top].value.symbol_symbol = result.symbol_symbol;
 				switch (parser->stack[parser->top].state) {
-				case 18:
+				case 17:
 					parser->stack[++parser->top].state = 25;
 					break;
 
-				case 68:
-					parser->stack[++parser->top].state = 70;
+				case 75:
+					parser->stack[++parser->top].state = 77;
 					break;
 
 				}
@@ -506,13 +511,13 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 				result.symbol_term = parse_reduce_22(parser->stack[parser->top + 0].value.token.c, grammar);
 				parser->stack[parser->top].value.symbol_term = result.symbol_term;
 				switch (parser->stack[parser->top].state) {
-				case 18:
-				case 68:
+				case 17:
+				case 75:
 					parser->stack[++parser->top].state = 26;
 					break;
 
-				case 38:
-					parser->stack[++parser->top].state = 44;
+				case 39:
+					parser->stack[++parser->top].state = 46;
 					break;
 
 				}
@@ -537,7 +542,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 				result.symbol_rhs = parse_reduce_15(parser->stack[parser->top + 0].value.symbol_rhs, parser->stack[parser->top + 1].value.token.str, grammar);
 				free_string(parser->stack[parser->top + 1].value.token.str);
 				parser->stack[parser->top].value.symbol_rhs = result.symbol_rhs;
-				parser->stack[++parser->top].state = 18;
+				parser->stack[++parser->top].state = 17;
 			}
 			break;
 
@@ -549,12 +554,12 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 				free_string(parser->stack[parser->top + 0].value.token.str);
 				parser->stack[parser->top].value.symbol_symbol = result.symbol_symbol;
 				switch (parser->stack[parser->top].state) {
-				case 18:
+				case 17:
 					parser->stack[++parser->top].state = 25;
 					break;
 
-				case 68:
-					parser->stack[++parser->top].state = 70;
+				case 75:
+					parser->stack[++parser->top].state = 77;
 					break;
 
 				}
@@ -569,13 +574,13 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 				free_string(parser->stack[parser->top + 0].value.token.str);
 				parser->stack[parser->top].value.symbol_term = result.symbol_term;
 				switch (parser->stack[parser->top].state) {
-				case 18:
-				case 68:
+				case 17:
+				case 75:
 					parser->stack[++parser->top].state = 26;
 					break;
 
-				case 38:
-					parser->stack[++parser->top].state = 44;
+				case 39:
+					parser->stack[++parser->top].state = 46;
 					break;
 
 				}
@@ -594,8 +599,8 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 
 		case 34:
 			switch (token) {
-			case 'r':
-				parser->stack[++parser->top].state = 40;
+			case '.':
+				parser->stack[++parser->top].state = 41;
 				return 1;
 
 			default:
@@ -605,8 +610,8 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 
 		case 35:
 			switch (token) {
-			case 'a':
-				parser->stack[++parser->top].state = 41;
+			case 'r':
+				parser->stack[++parser->top].state = 42;
 				return 1;
 
 			default:
@@ -616,8 +621,8 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 
 		case 36:
 			switch (token) {
-			case 'e':
-				parser->stack[++parser->top].state = 42;
+			case 'a':
+				parser->stack[++parser->top].state = 43;
 				return 1;
 
 			default:
@@ -627,8 +632,8 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 
 		case 37:
 			switch (token) {
-			case 'c':
-				parser->stack[++parser->top].state = 43;
+			case 'e':
+				parser->stack[++parser->top].state = 44;
 				return 1;
 
 			default:
@@ -638,6 +643,17 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 
 		case 38:
 			switch (token) {
+			case 'c':
+				parser->stack[++parser->top].state = 45;
+				return 1;
+
+			default:
+				return -1;
+			}
+			break;
+
+		case 39:
+			switch (token) {
 			case TOK_CHAR:
 				parser->stack[++parser->top].state = 28;
 				return 1;
@@ -647,7 +663,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 				return 1;
 
 			case TOK_SYMBOL:
-				parser->stack[++parser->top].state = 45;
+				parser->stack[++parser->top].state = 47;
 				return 1;
 
 			default:
@@ -655,18 +671,18 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 39:
+		case 40:
 			switch (token) {
 			case TOK_SYMBOL:
-				parser->stack[++parser->top].state = 47;
+				parser->stack[++parser->top].state = 49;
 				return 1;
 
 			case TOK_SYMBOL_UC:
-				parser->stack[++parser->top].state = 48;
+				parser->stack[++parser->top].state = 50;
 				return 1;
 
 			case '=':
-				parser->stack[++parser->top].state = 49;
+				parser->stack[++parser->top].state = 51;
 				return 1;
 
 			default:
@@ -674,10 +690,21 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 40:
+		case 41:
+			switch (token) {
+			case '.':
+				parser->stack[++parser->top].state = 52;
+				return 1;
+
+			default:
+				return -1;
+			}
+			break;
+
+		case 42:
 			switch (token) {
 			case 'u':
-				parser->stack[++parser->top].state = 50;
+				parser->stack[++parser->top].state = 53;
 				return 1;
 
 			default:
@@ -685,10 +712,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 41:
+		case 43:
 			switch (token) {
 			case '_':
-				parser->stack[++parser->top].state = 51;
+				parser->stack[++parser->top].state = 54;
 				return 1;
 
 			default:
@@ -696,10 +723,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 42:
+		case 44:
 			switch (token) {
 			case 'r':
-				parser->stack[++parser->top].state = 52;
+				parser->stack[++parser->top].state = 55;
 				return 1;
 
 			default:
@@ -707,10 +734,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 43:
+		case 45:
 			switch (token) {
 			case 'e':
-				parser->stack[++parser->top].state = 53;
+				parser->stack[++parser->top].state = 56;
 				return 1;
 
 			default:
@@ -718,10 +745,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 44:
+		case 46:
 			switch (token) {
 			case TOK_BLOCK:
-				parser->stack[++parser->top].state = 54;
+				parser->stack[++parser->top].state = 57;
 				return 1;
 
 			default:
@@ -729,10 +756,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 45:
+		case 47:
 			switch (token) {
 			case TOK_BLOCK:
-				parser->stack[++parser->top].state = 55;
+				parser->stack[++parser->top].state = 58;
 				return 1;
 
 			default:
@@ -740,10 +767,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 46:
+		case 48:
 			switch (token) {
 			case ')':
-				parser->stack[++parser->top].state = 56;
+				parser->stack[++parser->top].state = 59;
 				return 1;
 
 			default:
@@ -751,76 +778,76 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 47:
+		case 49:
 			switch (token) {
 			default:
 				parser->top -= 1;
 				result.symbol_varname = parse_reduce_24(parser->stack[parser->top + 0].value.token.str, grammar);
 				parser->stack[parser->top].value.symbol_varname = result.symbol_varname;
 				switch (parser->stack[parser->top].state) {
-				case 39:
-					parser->stack[++parser->top].state = 46;
+				case 40:
+					parser->stack[++parser->top].state = 48;
 					break;
 
-				case 49:
-					parser->stack[++parser->top].state = 57;
+				case 51:
+					parser->stack[++parser->top].state = 60;
 					break;
 
-				case 54:
-					parser->stack[++parser->top].state = 62;
+				case 57:
+					parser->stack[++parser->top].state = 66;
 					break;
 
-				case 69:
-					parser->stack[++parser->top].state = 71;
+				case 76:
+					parser->stack[++parser->top].state = 78;
 					break;
 
-				case 70:
-					parser->stack[++parser->top].state = 72;
+				case 77:
+					parser->stack[++parser->top].state = 79;
 					break;
 
 				}
 			}
 			break;
 
-		case 48:
+		case 50:
 			switch (token) {
 			default:
 				parser->top -= 1;
 				result.symbol_varname = parse_reduce_23(parser->stack[parser->top + 0].value.token.str, grammar);
 				parser->stack[parser->top].value.symbol_varname = result.symbol_varname;
 				switch (parser->stack[parser->top].state) {
-				case 39:
-					parser->stack[++parser->top].state = 46;
+				case 40:
+					parser->stack[++parser->top].state = 48;
 					break;
 
-				case 49:
-					parser->stack[++parser->top].state = 57;
+				case 51:
+					parser->stack[++parser->top].state = 60;
 					break;
 
-				case 54:
-					parser->stack[++parser->top].state = 62;
+				case 57:
+					parser->stack[++parser->top].state = 66;
 					break;
 
-				case 69:
-					parser->stack[++parser->top].state = 71;
+				case 76:
+					parser->stack[++parser->top].state = 78;
 					break;
 
-				case 70:
-					parser->stack[++parser->top].state = 72;
+				case 77:
+					parser->stack[++parser->top].state = 79;
 					break;
 
 				}
 			}
 			break;
 
-		case 49:
+		case 51:
 			switch (token) {
 			case TOK_SYMBOL:
-				parser->stack[++parser->top].state = 47;
+				parser->stack[++parser->top].state = 49;
 				return 1;
 
 			case TOK_SYMBOL_UC:
-				parser->stack[++parser->top].state = 48;
+				parser->stack[++parser->top].state = 50;
 				return 1;
 
 			default:
@@ -828,10 +855,21 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 50:
+		case 52:
+			switch (token) {
+			case '.':
+				parser->stack[++parser->top].state = 61;
+				return 1;
+
+			default:
+				return -1;
+			}
+			break;
+
+		case 53:
 			switch (token) {
 			case 'c':
-				parser->stack[++parser->top].state = 58;
+				parser->stack[++parser->top].state = 62;
 				return 1;
 
 			default:
@@ -839,10 +877,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 51:
+		case 54:
 			switch (token) {
 			case 'a':
-				parser->stack[++parser->top].state = 59;
+				parser->stack[++parser->top].state = 63;
 				return 1;
 
 			default:
@@ -850,10 +888,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 52:
+		case 55:
 			switch (token) {
 			case TOK_BLOCK:
-				parser->stack[++parser->top].state = 60;
+				parser->stack[++parser->top].state = 64;
 				return 1;
 
 			default:
@@ -861,10 +899,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 53:
+		case 56:
 			switch (token) {
 			case TOK_BLOCK:
-				parser->stack[++parser->top].state = 61;
+				parser->stack[++parser->top].state = 65;
 				return 1;
 
 			default:
@@ -872,14 +910,14 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 54:
+		case 57:
 			switch (token) {
 			case TOK_SYMBOL:
-				parser->stack[++parser->top].state = 47;
+				parser->stack[++parser->top].state = 49;
 				return 1;
 
 			case TOK_SYMBOL_UC:
-				parser->stack[++parser->top].state = 48;
+				parser->stack[++parser->top].state = 50;
 				return 1;
 
 			default:
@@ -887,7 +925,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 55:
+		case 58:
 			switch (token) {
 			default:
 				parser->top -= 7;
@@ -898,7 +936,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 56:
+		case 59:
 			switch (token) {
 			default:
 				parser->top -= 5;
@@ -906,14 +944,14 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 				free_symbol(parser->stack[parser->top + 1].value.symbol_symbol);
 				free_string(parser->stack[parser->top + 3].value.symbol_varname);
 				parser->stack[parser->top].value.symbol_rhs = result.symbol_rhs;
-				parser->stack[++parser->top].state = 18;
+				parser->stack[++parser->top].state = 17;
 			}
 			break;
 
-		case 57:
+		case 60:
 			switch (token) {
 			case ')':
-				parser->stack[++parser->top].state = 63;
+				parser->stack[++parser->top].state = 67;
 				return 1;
 
 			default:
@@ -921,10 +959,21 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 58:
+		case 61:
+			switch (token) {
+			case TOK_CHAR:
+				parser->stack[++parser->top].state = 68;
+				return 1;
+
+			default:
+				return -1;
+			}
+			break;
+
+		case 62:
 			switch (token) {
 			case 't':
-				parser->stack[++parser->top].state = 64;
+				parser->stack[++parser->top].state = 69;
 				return 1;
 
 			default:
@@ -932,10 +981,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 59:
+		case 63:
 			switch (token) {
 			case 'r':
-				parser->stack[++parser->top].state = 65;
+				parser->stack[++parser->top].state = 70;
 				return 1;
 
 			default:
@@ -943,7 +992,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 60:
+		case 64:
 			switch (token) {
 			default:
 				parser->top -= 8;
@@ -953,7 +1002,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 61:
+		case 65:
 			switch (token) {
 			default:
 				parser->top -= 8;
@@ -963,7 +1012,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 62:
+		case 66:
 			switch (token) {
 			default:
 				parser->top -= 8;
@@ -975,7 +1024,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 63:
+		case 67:
 			switch (token) {
 			default:
 				parser->top -= 6;
@@ -983,14 +1032,25 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 				free_symbol(parser->stack[parser->top + 1].value.symbol_symbol);
 				free_string(parser->stack[parser->top + 4].value.symbol_varname);
 				parser->stack[parser->top].value.symbol_rhs = result.symbol_rhs;
-				parser->stack[++parser->top].state = 18;
+				parser->stack[++parser->top].state = 17;
 			}
 			break;
 
-		case 64:
+		case 68:
+			switch (token) {
+			case ')':
+				parser->stack[++parser->top].state = 71;
+				return 1;
+
+			default:
+				return -1;
+			}
+			break;
+
+		case 69:
 			switch (token) {
 			case 'o':
-				parser->stack[++parser->top].state = 66;
+				parser->stack[++parser->top].state = 72;
 				return 1;
 
 			default:
@@ -998,10 +1058,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 65:
+		case 70:
 			switch (token) {
 			case 'g':
-				parser->stack[++parser->top].state = 67;
+				parser->stack[++parser->top].state = 73;
 				return 1;
 
 			default:
@@ -1009,10 +1069,21 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 66:
+		case 71:
+			switch (token) {
+			case ';':
+				parser->stack[++parser->top].state = 74;
+				return 1;
+
+			default:
+				return -1;
+			}
+			break;
+
+		case 72:
 			switch (token) {
 			case 'r':
-				parser->stack[++parser->top].state = 68;
+				parser->stack[++parser->top].state = 75;
 				return 1;
 
 			default:
@@ -1020,10 +1091,10 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 67:
+		case 73:
 			switch (token) {
 			case TOK_BLOCK:
-				parser->stack[++parser->top].state = 69;
+				parser->stack[++parser->top].state = 76;
 				return 1;
 
 			default:
@@ -1031,7 +1102,17 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 68:
+		case 74:
+			switch (token) {
+			default:
+				parser->top -= 11;
+				parse_reduce_10(parser->stack[parser->top + 0].value.token.str, parser->stack[parser->top + 4].value.token.c, parser->stack[parser->top + 8].value.token.c, grammar);
+				free_string(parser->stack[parser->top + 0].value.token.str);
+				parser->stack[++parser->top].state = 2;
+			}
+			break;
+
+		case 75:
 			switch (token) {
 			case TOK_CHAR:
 				parser->stack[++parser->top].state = 28;
@@ -1050,14 +1131,14 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 69:
+		case 76:
 			switch (token) {
 			case TOK_SYMBOL:
-				parser->stack[++parser->top].state = 47;
+				parser->stack[++parser->top].state = 49;
 				return 1;
 
 			case TOK_SYMBOL_UC:
-				parser->stack[++parser->top].state = 48;
+				parser->stack[++parser->top].state = 50;
 				return 1;
 
 			default:
@@ -1065,14 +1146,14 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 70:
+		case 77:
 			switch (token) {
 			case TOK_SYMBOL:
-				parser->stack[++parser->top].state = 47;
+				parser->stack[++parser->top].state = 49;
 				return 1;
 
 			case TOK_SYMBOL_UC:
-				parser->stack[++parser->top].state = 48;
+				parser->stack[++parser->top].state = 50;
 				return 1;
 
 			default:
@@ -1080,7 +1161,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 71:
+		case 78:
 			switch (token) {
 			default:
 				parser->top -= 12;
@@ -1091,7 +1172,7 @@ static int parse_do_push(parse_context_t *parser, int token, __attribute__((unus
 			}
 			break;
 
-		case 72:
+		case 79:
 			switch (token) {
 			default:
 				parser->top -= 13;
diff --git a/src/parse.hpp b/src/parse.hpp
index e080ceb..c9fa9ce 100644
--- a/src/parse.hpp
+++ b/src/parse.hpp
@@ -14,7 +14,7 @@ typedef enum parse_token {
 } parse_token_t;
 
 typedef struct parse_token_value {
-	char c;
+	unsigned char c;
 	std::string *str;
 } parse_token_value_t;
 
diff --git a/src/parse.y b/src/parse.y
index 8d8a081..4fcba12 100644
--- a/src/parse.y
+++ b/src/parse.y
@@ -15,10 +15,6 @@ static inline void free_symbol(solar::symbol_t *v) {
 	delete v;
 }
 
-static inline void free_rule(solar::rule_t *v) {
-	delete v;
-}
-
 static inline void free_rhs(rhs_t *v) {
 	delete v;
 }
@@ -40,12 +36,9 @@ static inline void free_rhs(rhs_t *v) {
 %type STRING {std::string *} str
 %destructor STRING free_string
 
-%type CHAR {char} c
+%type CHAR {unsigned char} c
 
 
-%type rule {solar::rule_t *}
-%destructor rule free_rule
-
 %type rhs {rhs_t *}
 %destructor rhs free_rhs
 
@@ -93,13 +86,17 @@ directive |= "%extra_arg" BLOCK(type) varname(name) {
 	grammar->extra_args.push_back(std::make_pair(*type, *name));
 }
 
-directive |= rule(rule) {
-	grammar->add_rule(*rule);
+directive |= SYMBOL(lhs) "|=" rhs(rhs) action(action) {
+	grammar->add_rule({solar::item_t(*lhs, rhs->first), rhs->second, *action});
 }
 
+directive |= SYMBOL(lhs) "|=" '(' CHAR(c1) "..." CHAR(c2) ')' ';' {
+	vars_t vars;
+	vars.emplace_back();
 
-rule |= SYMBOL(lhs) "|=" rhs(rhs) action(action)
-	[new solar::rule_t {solar::item_t(*lhs, rhs->first), rhs->second, *action}]
+	for (unsigned int c = c1; c <= c2; c++)
+		grammar->add_rule({solar::item_t(*lhs, {solar::symbol_t::make_char(c)}), vars, std::string()});
+}
 
 
 rhs |= [new rhs_t()]