diff --git a/examples/parsers/arithmetic.c b/examples/parsers/arithmetic.c
index 884f825b..fd9251e5 100644
--- a/examples/parsers/arithmetic.c
+++ b/examples/parsers/arithmetic.c
@@ -35,95 +35,95 @@ HIDDEN_SYMBOLS(11) = {
 
 LEX_FN() {
     START_LEXER();
-    switch (LEX_STATE()) {
+    switch (lex_state) {
         case 0:
             LEX_ERROR();
         case 1:
-            if (LOOKAHEAD_CHAR() == '+')
+            if (lookahead == '+')
                 ADVANCE(2);
             LEX_ERROR();
         case 2:
             ACCEPT_TOKEN(ts_sym_plus);
         case 3:
-            if (LOOKAHEAD_CHAR() == ')')
+            if (lookahead == ')')
                 ADVANCE(4);
             LEX_ERROR();
         case 4:
             ACCEPT_TOKEN(ts_aux_sym_token2);
         case 5:
-            if (LOOKAHEAD_CHAR() == ')')
+            if (lookahead == ')')
                 ADVANCE(4);
-            if (LOOKAHEAD_CHAR() == '+')
+            if (lookahead == '+')
                 ADVANCE(2);
             LEX_ERROR();
         case 6:
-            if (LOOKAHEAD_CHAR() == ')')
+            if (lookahead == ')')
                 ADVANCE(4);
-            if (LOOKAHEAD_CHAR() == '*')
+            if (lookahead == '*')
                 ADVANCE(7);
-            if (LOOKAHEAD_CHAR() == '+')
+            if (lookahead == '+')
                 ADVANCE(2);
             LEX_ERROR();
         case 7:
             ACCEPT_TOKEN(ts_sym_times);
         case 8:
-            if (LOOKAHEAD_CHAR() == '(')
+            if (lookahead == '(')
                 ADVANCE(9);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(10);
-            if (('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if (('A' <= lookahead && lookahead <= 'Z') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(12);
             LEX_ERROR();
         case 9:
             ACCEPT_TOKEN(ts_aux_sym_token1);
         case 10:
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(11);
             ACCEPT_TOKEN(ts_sym_number);
         case 11:
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(11);
             ACCEPT_TOKEN(ts_sym_number);
         case 12:
-            if (('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if (('A' <= lookahead && lookahead <= 'Z') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(13);
             ACCEPT_TOKEN(ts_sym_variable);
         case 13:
-            if (('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if (('A' <= lookahead && lookahead <= 'Z') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(13);
             ACCEPT_TOKEN(ts_sym_variable);
         case 14:
-            if (LOOKAHEAD_CHAR() == ')')
+            if (lookahead == ')')
                 ADVANCE(4);
-            if (LOOKAHEAD_CHAR() == '*')
+            if (lookahead == '*')
                 ADVANCE(7);
             LEX_ERROR();
         case 15:
-            if (LOOKAHEAD_CHAR() == '*')
+            if (lookahead == '*')
                 ADVANCE(7);
-            if (LOOKAHEAD_CHAR() == '+')
+            if (lookahead == '+')
                 ADVANCE(2);
             LEX_ERROR();
         case 16:
-            if (LOOKAHEAD_CHAR() == '*')
+            if (lookahead == '*')
                 ADVANCE(7);
             LEX_ERROR();
         case ts_lex_state_error:
-            if (LOOKAHEAD_CHAR() == '(')
+            if (lookahead == '(')
                 ADVANCE(9);
-            if (LOOKAHEAD_CHAR() == ')')
+            if (lookahead == ')')
                 ADVANCE(4);
-            if (LOOKAHEAD_CHAR() == '*')
+            if (lookahead == '*')
                 ADVANCE(7);
-            if (LOOKAHEAD_CHAR() == '+')
+            if (lookahead == '+')
                 ADVANCE(2);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(10);
-            if (('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if (('A' <= lookahead && lookahead <= 'Z') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(12);
             LEX_ERROR();
         default:
diff --git a/examples/parsers/javascript.c b/examples/parsers/javascript.c
index e9f85a4a..8a8c4740 100644
--- a/examples/parsers/javascript.c
+++ b/examples/parsers/javascript.c
@@ -99,449 +99,449 @@ HIDDEN_SYMBOLS(35) = {
 
 LEX_FN() {
     START_LEXER();
-    switch (LEX_STATE()) {
+    switch (lex_state) {
         case 0:
-            if (LOOKAHEAD_CHAR() == ')')
+            if (lookahead == ')')
                 ADVANCE(1);
             LEX_ERROR();
         case 1:
             ACCEPT_TOKEN(ts_aux_sym_token4);
         case 2:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(8);
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'e') ||
-                ('g' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'h') ||
-                ('j' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'm') ||
-                ('o' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 's') ||
-                (LOOKAHEAD_CHAR() == 'u') ||
-                ('w' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'e') ||
+                ('g' <= lookahead && lookahead <= 'h') ||
+                ('j' <= lookahead && lookahead <= 'm') ||
+                ('o' <= lookahead && lookahead <= 's') ||
+                (lookahead == 'u') ||
+                ('w' <= lookahead && lookahead <= 'z'))
                 ADVANCE(18);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(20);
-            if (LOOKAHEAD_CHAR() == '[')
+            if (lookahead == '[')
                 ADVANCE(25);
-            if (LOOKAHEAD_CHAR() == 'f')
+            if (lookahead == 'f')
                 ADVANCE(26);
-            if (LOOKAHEAD_CHAR() == 'i')
+            if (lookahead == 'i')
                 ADVANCE(31);
-            if (LOOKAHEAD_CHAR() == 'n')
+            if (lookahead == 'n')
                 ADVANCE(34);
-            if ('o' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'n')
+            if ('o' <= lookahead && lookahead <= 'n')
                 ADVANCE(41);
-            if (LOOKAHEAD_CHAR() == 't')
+            if (lookahead == 't')
                 ADVANCE(42);
-            if ('u' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 't')
+            if ('u' <= lookahead && lookahead <= 't')
                 ADVANCE(49);
-            if (LOOKAHEAD_CHAR() == 'v')
+            if (lookahead == 'v')
                 ADVANCE(50);
-            if (LOOKAHEAD_CHAR() == '{')
+            if (lookahead == '{')
                 ADVANCE(55);
             LEX_ERROR();
         case 3:
-            if (LOOKAHEAD_CHAR() == 'a')
+            if (lookahead == 'a')
                 ADVANCE(4);
             LEX_ERROR();
         case 4:
-            if (LOOKAHEAD_CHAR() == 'l')
+            if (lookahead == 'l')
                 ADVANCE(5);
             LEX_ERROR();
         case 5:
-            if (LOOKAHEAD_CHAR() == 's')
+            if (lookahead == 's')
                 ADVANCE(6);
             LEX_ERROR();
         case 6:
-            if (LOOKAHEAD_CHAR() == 'e')
+            if (lookahead == 'e')
                 ADVANCE(7);
             LEX_ERROR();
         case 7:
             ACCEPT_TOKEN(ts_sym_false);
         case 8:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(9);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(15);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(17);
             LEX_ERROR();
         case 9:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(10);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(12);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(14);
             LEX_ERROR();
         case 10:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(10);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(12);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(14);
             LEX_ERROR();
         case 11:
             ACCEPT_TOKEN(ts_sym_string);
         case 12:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(10);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(13);
-            if ('#' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\"')
+            if ('#' <= lookahead && lookahead <= '\"')
                 ADVANCE(10);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(12);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(14);
             LEX_ERROR();
         case 13:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(10);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(12);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(14);
             ACCEPT_TOKEN(ts_sym_string);
         case 14:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(10);
             LEX_ERROR();
         case 15:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(10);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(16);
-            if ('#' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\"')
+            if ('#' <= lookahead && lookahead <= '\"')
                 ADVANCE(9);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(12);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(14);
             LEX_ERROR();
         case 16:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(10);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(12);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(14);
             ACCEPT_TOKEN(ts_sym_string);
         case 17:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(9);
             LEX_ERROR();
         case 18:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 19:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 20:
-            if (LOOKAHEAD_CHAR() == '.')
+            if (lookahead == '.')
                 ADVANCE(21);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(24);
             ACCEPT_TOKEN(ts_sym_number);
         case 21:
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(22);
             LEX_ERROR();
         case 22:
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(23);
             ACCEPT_TOKEN(ts_sym_number);
         case 23:
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(23);
             ACCEPT_TOKEN(ts_sym_number);
         case 24:
-            if (LOOKAHEAD_CHAR() == '.')
+            if (lookahead == '.')
                 ADVANCE(21);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(24);
             ACCEPT_TOKEN(ts_sym_number);
         case 25:
             ACCEPT_TOKEN(ts_aux_sym_token10);
         case 26:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('b' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('b' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'a')
+            if (lookahead == 'a')
                 ADVANCE(27);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 27:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'k') ||
-                ('m' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'k') ||
+                ('m' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'l')
+            if (lookahead == 'l')
                 ADVANCE(28);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 28:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'r') ||
-                ('t' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'r') ||
+                ('t' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 's')
+            if (lookahead == 's')
                 ADVANCE(29);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 29:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'd') ||
-                ('f' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'd') ||
+                ('f' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'e')
+            if (lookahead == 'e')
                 ADVANCE(30);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 30:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 31:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'e') ||
-                ('g' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'e') ||
+                ('g' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'f')
+            if (lookahead == 'f')
                 ADVANCE(33);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 32:
             ACCEPT_TOKEN(ts_sym__IF);
         case 33:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
             ACCEPT_TOKEN(ts_sym__IF);
         case 34:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 't') ||
-                ('v' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 't') ||
+                ('v' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'u')
+            if (lookahead == 'u')
                 ADVANCE(35);
-            if ('v' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'u')
+            if ('v' <= lookahead && lookahead <= 'u')
                 ADVANCE(40);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 35:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'k') ||
-                ('m' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'k') ||
+                ('m' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'l')
+            if (lookahead == 'l')
                 ADVANCE(36);
-            if ('m' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'l')
+            if ('m' <= lookahead && lookahead <= 'l')
                 ADVANCE(39);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 36:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'k') ||
-                ('m' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'k') ||
+                ('m' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'l')
+            if (lookahead == 'l')
                 ADVANCE(37);
-            if ('m' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'l')
+            if ('m' <= lookahead && lookahead <= 'l')
                 ADVANCE(38);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 37:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 38:
             ACCEPT_TOKEN(ts_sym_null);
         case 39:
-            if (LOOKAHEAD_CHAR() == 'l')
+            if (lookahead == 'l')
                 ADVANCE(38);
             LEX_ERROR();
         case 40:
-            if (LOOKAHEAD_CHAR() == 'l')
+            if (lookahead == 'l')
                 ADVANCE(39);
             LEX_ERROR();
         case 41:
-            if (LOOKAHEAD_CHAR() == 'u')
+            if (lookahead == 'u')
                 ADVANCE(40);
             LEX_ERROR();
         case 42:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'q') ||
-                ('s' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'q') ||
+                ('s' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'r')
+            if (lookahead == 'r')
                 ADVANCE(43);
-            if ('s' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'r')
+            if ('s' <= lookahead && lookahead <= 'r')
                 ADVANCE(48);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 43:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 't') ||
-                ('v' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 't') ||
+                ('v' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'u')
+            if (lookahead == 'u')
                 ADVANCE(44);
-            if ('v' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'u')
+            if ('v' <= lookahead && lookahead <= 'u')
                 ADVANCE(47);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 44:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'd') ||
-                ('f' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'd') ||
+                ('f' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'e')
+            if (lookahead == 'e')
                 ADVANCE(45);
-            if ('f' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'e')
+            if ('f' <= lookahead && lookahead <= 'e')
                 ADVANCE(46);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 45:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 46:
             ACCEPT_TOKEN(ts_sym_true);
         case 47:
-            if (LOOKAHEAD_CHAR() == 'e')
+            if (lookahead == 'e')
                 ADVANCE(46);
             LEX_ERROR();
         case 48:
-            if (LOOKAHEAD_CHAR() == 'u')
+            if (lookahead == 'u')
                 ADVANCE(47);
             LEX_ERROR();
         case 49:
-            if (LOOKAHEAD_CHAR() == 'r')
+            if (lookahead == 'r')
                 ADVANCE(48);
             LEX_ERROR();
         case 50:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('b' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('b' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'a')
+            if (lookahead == 'a')
                 ADVANCE(53);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 51:
-            if (LOOKAHEAD_CHAR() == 'r')
+            if (lookahead == 'r')
                 ADVANCE(52);
             LEX_ERROR();
         case 52:
             ACCEPT_TOKEN(ts_sym__VAR);
         case 53:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'q') ||
-                ('s' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'q') ||
+                ('s' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == 'r')
+            if (lookahead == 'r')
                 ADVANCE(54);
             ACCEPT_TOKEN(ts_sym_identifier);
         case 54:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(19);
             ACCEPT_TOKEN(ts_sym__VAR);
         case 55:
             ACCEPT_TOKEN(ts_aux_sym_token5);
         case 56:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(8);
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'e') ||
-                ('g' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'h') ||
-                ('j' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'm') ||
-                ('o' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 's') ||
-                (LOOKAHEAD_CHAR() == 'u') ||
-                ('w' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'e') ||
+                ('g' <= lookahead && lookahead <= 'h') ||
+                ('j' <= lookahead && lookahead <= 'm') ||
+                ('o' <= lookahead && lookahead <= 's') ||
+                (lookahead == 'u') ||
+                ('w' <= lookahead && lookahead <= 'z'))
                 ADVANCE(18);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(20);
-            if (LOOKAHEAD_CHAR() == '[')
+            if (lookahead == '[')
                 ADVANCE(25);
-            if (LOOKAHEAD_CHAR() == 'f')
+            if (lookahead == 'f')
                 ADVANCE(26);
-            if (LOOKAHEAD_CHAR() == 'i')
+            if (lookahead == 'i')
                 ADVANCE(31);
-            if (LOOKAHEAD_CHAR() == 'n')
+            if (lookahead == 'n')
                 ADVANCE(34);
-            if ('o' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'n')
+            if ('o' <= lookahead && lookahead <= 'n')
                 ADVANCE(41);
-            if (LOOKAHEAD_CHAR() == 't')
+            if (lookahead == 't')
                 ADVANCE(42);
-            if ('u' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 't')
+            if ('u' <= lookahead && lookahead <= 't')
                 ADVANCE(49);
-            if (LOOKAHEAD_CHAR() == 'v')
+            if (lookahead == 'v')
                 ADVANCE(50);
-            if (LOOKAHEAD_CHAR() == '{')
+            if (lookahead == '{')
                 ADVANCE(55);
-            if (LOOKAHEAD_CHAR() == '}')
+            if (lookahead == '}')
                 ADVANCE(57);
             LEX_ERROR();
         case 57:
             ACCEPT_TOKEN(ts_aux_sym_token6);
         case 58:
-            if (LOOKAHEAD_CHAR() == '\n')
+            if (lookahead == '\n')
                 ADVANCE(59);
-            if (LOOKAHEAD_CHAR() == ';')
+            if (lookahead == ';')
                 ADVANCE(60);
             LEX_ERROR();
         case 59:
@@ -549,9 +549,9 @@ LEX_FN() {
         case 60:
             ACCEPT_TOKEN(ts_aux_sym_token1);
         case 61:
-            if (LOOKAHEAD_CHAR() == ',')
+            if (lookahead == ',')
                 ADVANCE(62);
-            if (LOOKAHEAD_CHAR() == ']')
+            if (lookahead == ']')
                 ADVANCE(63);
             LEX_ERROR();
         case 62:
@@ -559,112 +559,112 @@ LEX_FN() {
         case 63:
             ACCEPT_TOKEN(ts_aux_sym_token11);
         case 64:
-            if (LOOKAHEAD_CHAR() == ']')
+            if (lookahead == ']')
                 ADVANCE(63);
             LEX_ERROR();
         case 65:
-            if (LOOKAHEAD_CHAR() == ',')
+            if (lookahead == ',')
                 ADVANCE(62);
-            if (LOOKAHEAD_CHAR() == '}')
+            if (lookahead == '}')
                 ADVANCE(57);
             LEX_ERROR();
         case 66:
-            if (LOOKAHEAD_CHAR() == '}')
+            if (lookahead == '}')
                 ADVANCE(57);
             LEX_ERROR();
         case 67:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(8);
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'e') ||
-                ('g' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'm') ||
-                ('o' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 's') ||
-                ('u' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'e') ||
+                ('g' <= lookahead && lookahead <= 'm') ||
+                ('o' <= lookahead && lookahead <= 's') ||
+                ('u' <= lookahead && lookahead <= 'z'))
                 ADVANCE(18);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(20);
-            if (LOOKAHEAD_CHAR() == '[')
+            if (lookahead == '[')
                 ADVANCE(25);
-            if (LOOKAHEAD_CHAR() == ']')
+            if (lookahead == ']')
                 ADVANCE(63);
-            if (LOOKAHEAD_CHAR() == 'f')
+            if (lookahead == 'f')
                 ADVANCE(26);
-            if (LOOKAHEAD_CHAR() == 'n')
+            if (lookahead == 'n')
                 ADVANCE(34);
-            if ('o' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'n')
+            if ('o' <= lookahead && lookahead <= 'n')
                 ADVANCE(41);
-            if (LOOKAHEAD_CHAR() == 't')
+            if (lookahead == 't')
                 ADVANCE(42);
-            if ('u' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 't')
+            if ('u' <= lookahead && lookahead <= 't')
                 ADVANCE(49);
-            if (LOOKAHEAD_CHAR() == '{')
+            if (lookahead == '{')
                 ADVANCE(55);
             LEX_ERROR();
         case 68:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(8);
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'e') ||
-                ('g' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'm') ||
-                ('o' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 's') ||
-                ('u' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'e') ||
+                ('g' <= lookahead && lookahead <= 'm') ||
+                ('o' <= lookahead && lookahead <= 's') ||
+                ('u' <= lookahead && lookahead <= 'z'))
                 ADVANCE(18);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(20);
-            if (LOOKAHEAD_CHAR() == '[')
+            if (lookahead == '[')
                 ADVANCE(25);
-            if (LOOKAHEAD_CHAR() == 'f')
+            if (lookahead == 'f')
                 ADVANCE(26);
-            if (LOOKAHEAD_CHAR() == 'n')
+            if (lookahead == 'n')
                 ADVANCE(34);
-            if ('o' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'n')
+            if ('o' <= lookahead && lookahead <= 'n')
                 ADVANCE(41);
-            if (LOOKAHEAD_CHAR() == 't')
+            if (lookahead == 't')
                 ADVANCE(42);
-            if ('u' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 't')
+            if ('u' <= lookahead && lookahead <= 't')
                 ADVANCE(49);
-            if (LOOKAHEAD_CHAR() == '{')
+            if (lookahead == '{')
                 ADVANCE(55);
             LEX_ERROR();
         case 69:
-            if (LOOKAHEAD_CHAR() == ':')
+            if (lookahead == ':')
                 ADVANCE(70);
             LEX_ERROR();
         case 70:
             ACCEPT_TOKEN(ts_aux_sym_token8);
         case 71:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(8);
-            if (LOOKAHEAD_CHAR() == '}')
+            if (lookahead == '}')
                 ADVANCE(57);
             LEX_ERROR();
         case 72:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(8);
             LEX_ERROR();
         case 73:
-            if (LOOKAHEAD_CHAR() == '=')
+            if (lookahead == '=')
                 ADVANCE(74);
             LEX_ERROR();
         case 74:
             ACCEPT_TOKEN(ts_aux_sym_token7);
         case 75:
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'z'))
                 ADVANCE(18);
             LEX_ERROR();
         case 76:
-            if (LOOKAHEAD_CHAR() == '{')
+            if (lookahead == '{')
                 ADVANCE(55);
             LEX_ERROR();
         case 77:
-            if (LOOKAHEAD_CHAR() == '(')
+            if (lookahead == '(')
                 ADVANCE(78);
             LEX_ERROR();
         case 78:
@@ -672,55 +672,55 @@ LEX_FN() {
         case 79:
             LEX_ERROR();
         case ts_lex_state_error:
-            if (LOOKAHEAD_CHAR() == '\n')
+            if (lookahead == '\n')
                 ADVANCE(59);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(8);
-            if ((LOOKAHEAD_CHAR() == '$') ||
-                ('A' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'Z') ||
-                (LOOKAHEAD_CHAR() == '_') ||
-                ('a' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'e') ||
-                ('g' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'h') ||
-                ('j' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'm') ||
-                ('o' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 's') ||
-                (LOOKAHEAD_CHAR() == 'u') ||
-                ('w' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'z'))
+            if ((lookahead == '$') ||
+                ('A' <= lookahead && lookahead <= 'Z') ||
+                (lookahead == '_') ||
+                ('a' <= lookahead && lookahead <= 'e') ||
+                ('g' <= lookahead && lookahead <= 'h') ||
+                ('j' <= lookahead && lookahead <= 'm') ||
+                ('o' <= lookahead && lookahead <= 's') ||
+                (lookahead == 'u') ||
+                ('w' <= lookahead && lookahead <= 'z'))
                 ADVANCE(18);
-            if (LOOKAHEAD_CHAR() == '(')
+            if (lookahead == '(')
                 ADVANCE(78);
-            if (LOOKAHEAD_CHAR() == ')')
+            if (lookahead == ')')
                 ADVANCE(1);
-            if (LOOKAHEAD_CHAR() == ',')
+            if (lookahead == ',')
                 ADVANCE(62);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(20);
-            if (LOOKAHEAD_CHAR() == ':')
+            if (lookahead == ':')
                 ADVANCE(70);
-            if (LOOKAHEAD_CHAR() == ';')
+            if (lookahead == ';')
                 ADVANCE(60);
-            if (LOOKAHEAD_CHAR() == '=')
+            if (lookahead == '=')
                 ADVANCE(74);
-            if (LOOKAHEAD_CHAR() == '[')
+            if (lookahead == '[')
                 ADVANCE(25);
-            if (LOOKAHEAD_CHAR() == ']')
+            if (lookahead == ']')
                 ADVANCE(63);
-            if (LOOKAHEAD_CHAR() == 'f')
+            if (lookahead == 'f')
                 ADVANCE(26);
-            if (LOOKAHEAD_CHAR() == 'i')
+            if (lookahead == 'i')
                 ADVANCE(31);
-            if (LOOKAHEAD_CHAR() == 'n')
+            if (lookahead == 'n')
                 ADVANCE(34);
-            if ('o' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 'n')
+            if ('o' <= lookahead && lookahead <= 'n')
                 ADVANCE(41);
-            if (LOOKAHEAD_CHAR() == 't')
+            if (lookahead == 't')
                 ADVANCE(42);
-            if ('u' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= 't')
+            if ('u' <= lookahead && lookahead <= 't')
                 ADVANCE(49);
-            if (LOOKAHEAD_CHAR() == 'v')
+            if (lookahead == 'v')
                 ADVANCE(50);
-            if (LOOKAHEAD_CHAR() == '{')
+            if (lookahead == '{')
                 ADVANCE(55);
-            if (LOOKAHEAD_CHAR() == '}')
+            if (lookahead == '}')
                 ADVANCE(57);
             LEX_ERROR();
         default:
diff --git a/examples/parsers/json.c b/examples/parsers/json.c
index eb185eb6..87a0dc4f 100644
--- a/examples/parsers/json.c
+++ b/examples/parsers/json.c
@@ -55,13 +55,13 @@ HIDDEN_SYMBOLS(18) = {
 
 LEX_FN() {
     START_LEXER();
-    switch (LEX_STATE()) {
+    switch (lex_state) {
         case 0:
             LEX_ERROR();
         case 1:
-            if (LOOKAHEAD_CHAR() == ',')
+            if (lookahead == ',')
                 ADVANCE(2);
-            if (LOOKAHEAD_CHAR() == '}')
+            if (lookahead == '}')
                 ADVANCE(3);
             LEX_ERROR();
         case 2:
@@ -69,194 +69,194 @@ LEX_FN() {
         case 3:
             ACCEPT_TOKEN(ts_aux_sym_token4);
         case 4:
-            if (LOOKAHEAD_CHAR() == '}')
+            if (lookahead == '}')
                 ADVANCE(3);
             LEX_ERROR();
         case 5:
-            if (LOOKAHEAD_CHAR() == ',')
+            if (lookahead == ',')
                 ADVANCE(2);
-            if (LOOKAHEAD_CHAR() == ']')
+            if (lookahead == ']')
                 ADVANCE(6);
             LEX_ERROR();
         case 6:
             ACCEPT_TOKEN(ts_aux_sym_token6);
         case 7:
-            if (LOOKAHEAD_CHAR() == ']')
+            if (lookahead == ']')
                 ADVANCE(6);
             LEX_ERROR();
         case 8:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(9);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == '[')
+            if (lookahead == '[')
                 ADVANCE(24);
-            if (LOOKAHEAD_CHAR() == 'f')
+            if (lookahead == 'f')
                 ADVANCE(25);
-            if (LOOKAHEAD_CHAR() == 'n')
+            if (lookahead == 'n')
                 ADVANCE(30);
-            if (LOOKAHEAD_CHAR() == 't')
+            if (lookahead == 't')
                 ADVANCE(34);
-            if (LOOKAHEAD_CHAR() == '{')
+            if (lookahead == '{')
                 ADVANCE(38);
             LEX_ERROR();
         case 9:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(10);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(16);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(18);
             LEX_ERROR();
         case 10:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(12);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(13);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(15);
             LEX_ERROR();
         case 11:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(12);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(13);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(15);
             LEX_ERROR();
         case 12:
             ACCEPT_TOKEN(ts_sym_string);
         case 13:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(14);
-            if ('#' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\"')
+            if ('#' <= lookahead && lookahead <= '\"')
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(13);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(15);
             LEX_ERROR();
         case 14:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(12);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(13);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(15);
             ACCEPT_TOKEN(ts_sym_string);
         case 15:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(11);
             LEX_ERROR();
         case 16:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(17);
-            if ('#' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\"')
+            if ('#' <= lookahead && lookahead <= '\"')
                 ADVANCE(10);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(13);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(15);
             LEX_ERROR();
         case 17:
-            if (!((LOOKAHEAD_CHAR() == '\"') ||
-                (LOOKAHEAD_CHAR() == '\\')))
+            if (!((lookahead == '\"') ||
+                (lookahead == '\\')))
                 ADVANCE(11);
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(12);
-            if (LOOKAHEAD_CHAR() == '\\')
+            if (lookahead == '\\')
                 ADVANCE(13);
-            if (']' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '\\')
+            if (']' <= lookahead && lookahead <= '\\')
                 ADVANCE(15);
             ACCEPT_TOKEN(ts_sym_string);
         case 18:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(10);
             LEX_ERROR();
         case 19:
-            if (LOOKAHEAD_CHAR() == '.')
+            if (lookahead == '.')
                 ADVANCE(20);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(23);
             ACCEPT_TOKEN(ts_sym_number);
         case 20:
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(21);
             LEX_ERROR();
         case 21:
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(22);
             ACCEPT_TOKEN(ts_sym_number);
         case 22:
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(22);
             ACCEPT_TOKEN(ts_sym_number);
         case 23:
-            if (LOOKAHEAD_CHAR() == '.')
+            if (lookahead == '.')
                 ADVANCE(20);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(23);
             ACCEPT_TOKEN(ts_sym_number);
         case 24:
             ACCEPT_TOKEN(ts_aux_sym_token5);
         case 25:
-            if (LOOKAHEAD_CHAR() == 'a')
+            if (lookahead == 'a')
                 ADVANCE(26);
             LEX_ERROR();
         case 26:
-            if (LOOKAHEAD_CHAR() == 'l')
+            if (lookahead == 'l')
                 ADVANCE(27);
             LEX_ERROR();
         case 27:
-            if (LOOKAHEAD_CHAR() == 's')
+            if (lookahead == 's')
                 ADVANCE(28);
             LEX_ERROR();
         case 28:
-            if (LOOKAHEAD_CHAR() == 'e')
+            if (lookahead == 'e')
                 ADVANCE(29);
             LEX_ERROR();
         case 29:
             ACCEPT_TOKEN(ts_sym_false);
         case 30:
-            if (LOOKAHEAD_CHAR() == 'u')
+            if (lookahead == 'u')
                 ADVANCE(31);
             LEX_ERROR();
         case 31:
-            if (LOOKAHEAD_CHAR() == 'l')
+            if (lookahead == 'l')
                 ADVANCE(32);
             LEX_ERROR();
         case 32:
-            if (LOOKAHEAD_CHAR() == 'l')
+            if (lookahead == 'l')
                 ADVANCE(33);
             LEX_ERROR();
         case 33:
             ACCEPT_TOKEN(ts_sym_null);
         case 34:
-            if (LOOKAHEAD_CHAR() == 'r')
+            if (lookahead == 'r')
                 ADVANCE(35);
             LEX_ERROR();
         case 35:
-            if (LOOKAHEAD_CHAR() == 'u')
+            if (lookahead == 'u')
                 ADVANCE(36);
             LEX_ERROR();
         case 36:
-            if (LOOKAHEAD_CHAR() == 'e')
+            if (lookahead == 'e')
                 ADVANCE(37);
             LEX_ERROR();
         case 37:
@@ -264,61 +264,61 @@ LEX_FN() {
         case 38:
             ACCEPT_TOKEN(ts_aux_sym_token1);
         case 39:
-            if (LOOKAHEAD_CHAR() == ':')
+            if (lookahead == ':')
                 ADVANCE(40);
             LEX_ERROR();
         case 40:
             ACCEPT_TOKEN(ts_aux_sym_token2);
         case 41:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(9);
-            if (LOOKAHEAD_CHAR() == '}')
+            if (lookahead == '}')
                 ADVANCE(3);
             LEX_ERROR();
         case 42:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(9);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == '[')
+            if (lookahead == '[')
                 ADVANCE(24);
-            if (LOOKAHEAD_CHAR() == ']')
+            if (lookahead == ']')
                 ADVANCE(6);
-            if (LOOKAHEAD_CHAR() == 'f')
+            if (lookahead == 'f')
                 ADVANCE(25);
-            if (LOOKAHEAD_CHAR() == 'n')
+            if (lookahead == 'n')
                 ADVANCE(30);
-            if (LOOKAHEAD_CHAR() == 't')
+            if (lookahead == 't')
                 ADVANCE(34);
-            if (LOOKAHEAD_CHAR() == '{')
+            if (lookahead == '{')
                 ADVANCE(38);
             LEX_ERROR();
         case 43:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(9);
             LEX_ERROR();
         case ts_lex_state_error:
-            if (LOOKAHEAD_CHAR() == '\"')
+            if (lookahead == '\"')
                 ADVANCE(9);
-            if (LOOKAHEAD_CHAR() == ',')
+            if (lookahead == ',')
                 ADVANCE(2);
-            if ('0' <= LOOKAHEAD_CHAR() && LOOKAHEAD_CHAR() <= '9')
+            if ('0' <= lookahead && lookahead <= '9')
                 ADVANCE(19);
-            if (LOOKAHEAD_CHAR() == ':')
+            if (lookahead == ':')
                 ADVANCE(40);
-            if (LOOKAHEAD_CHAR() == '[')
+            if (lookahead == '[')
                 ADVANCE(24);
-            if (LOOKAHEAD_CHAR() == ']')
+            if (lookahead == ']')
                 ADVANCE(6);
-            if (LOOKAHEAD_CHAR() == 'f')
+            if (lookahead == 'f')
                 ADVANCE(25);
-            if (LOOKAHEAD_CHAR() == 'n')
+            if (lookahead == 'n')
                 ADVANCE(30);
-            if (LOOKAHEAD_CHAR() == 't')
+            if (lookahead == 't')
                 ADVANCE(34);
-            if (LOOKAHEAD_CHAR() == '{')
+            if (lookahead == '{')
                 ADVANCE(38);
-            if (LOOKAHEAD_CHAR() == '}')
+            if (lookahead == '}')
                 ADVANCE(3);
             LEX_ERROR();
         default:
diff --git a/include/tree_sitter/parser.h b/include/tree_sitter/parser.h
index c3c93385..8cda394f 100644
--- a/include/tree_sitter/parser.h
+++ b/include/tree_sitter/parser.h
@@ -31,81 +31,58 @@ extern "C" {
 #define DEBUG_PARSE(...)
 #endif
 
+#define SYMBOL_NAMES \
+static const char *ts_symbol_names[]
+    
+#define HIDDEN_SYMBOLS(num_symbols) \
+static const int hidden_symbol_flags[num_symbols]
+    
 #define LEX_STATES(num_states) \
 static state_id ts_lex_states[num_states]
 
+#define LEX_FN() \
+static ts_tree * ts_lex(ts_lexer *lexer, state_id lex_state)
+
+#define START_LEXER() \
+char lookahead; \
+ts_lexer_skip_whitespace(lexer); \
+if (!ts_lexer_lookahead_char(lexer)) return ts_tree_make_leaf(ts_builtin_sym_end, 0, 0); \
+next_state: \
+lookahead = ts_lexer_lookahead_char(lexer);
+    
+#define ADVANCE(state_index) \
+{ ts_lexer_advance(lexer); lex_state = state_index; goto next_state; }
+    
+#define ACCEPT_TOKEN(symbol) \
+{ DEBUG_LEX("token: %s \n", ts_symbol_names[symbol]); return ts_lexer_build_node(lexer, symbol); }
+    
+#define LEX_ERROR() \
+{ return ts_lexer_build_node(lexer, ts_builtin_sym_error); }
+    
+#define LEX_PANIC() \
+{ DEBUG_LEX("Lex error: unexpected state %d", LEX_STATE()); return NULL; }
+
 #define PARSE_TABLE(num_states, num_symbols) \
 static const ts_parse_action ts_parse_actions[num_states][num_symbols]
 
-#define LEX_FN() \
-static ts_tree * \
-ts_lex(ts_lexer *lexer, state_id lex_state)
-
-#define SYMBOL_NAMES \
-static const char *ts_symbol_names[]
-
-#define HIDDEN_SYMBOLS(num_symbols) \
-static const int hidden_symbol_flags[num_symbols]
-
 #define EXPORT_PARSER(constructor_name) \
 ts_parser constructor_name() { \
-    ts_parser result = { \
+    return (ts_parser){ \
         .parse_fn = ts_parse, \
         .symbol_names = ts_symbol_names, \
         .data = ts_lr_parser_make(TS_SYMBOL_COUNT, (const ts_parse_action *)ts_parse_actions, ts_lex_states, hidden_symbol_flags), \
         .free_fn = NULL \
     }; \
-    return result; \
 }
 
 #define SHIFT(to_state_value) \
-(ts_parse_action) { \
-    .type = ts_parse_action_type_shift, \
-    .data = { .to_state = to_state_value } \
-}
+(ts_parse_action){ .type = ts_parse_action_type_shift, .data = { .to_state = to_state_value } }
 
 #define REDUCE(symbol_val, child_count_val) \
-(ts_parse_action) { \
-    .type = ts_parse_action_type_reduce, \
-    .data = { .symbol = symbol_val, .child_count = child_count_val } \
-}
+(ts_parse_action){ .type = ts_parse_action_type_reduce, .data = { .symbol = symbol_val, .child_count = child_count_val } }
 
 #define ACCEPT_INPUT() \
-(ts_parse_action) { \
-    .type = ts_parse_action_type_accept, \
-}
-
-#define START_LEXER() \
-ts_lexer_skip_whitespace(lexer); \
-if (!ts_lexer_lookahead_char(lexer)) { \
-    return ts_tree_make_leaf(ts_builtin_sym_end, 0, 0); \
-} \
-next_state:
-
-#define LEX_STATE() \
-lex_state
-
-#define LOOKAHEAD_CHAR() \
-ts_lexer_lookahead_char(lexer)
-
-#define ADVANCE(state_index) \
-{ \
-    ts_lexer_advance(lexer); \
-    lex_state = state_index; \
-    goto next_state; \
-}
-
-#define ACCEPT_TOKEN(symbol) \
-{ \
-    DEBUG_LEX("token: %s \n", ts_symbol_names[symbol]); \
-    return ts_lexer_build_node(lexer, symbol); \
-}
-
-#define LEX_ERROR() \
-return ts_lexer_build_node(lexer, ts_builtin_sym_error);
-
-#define LEX_PANIC() \
-{ DEBUG_LEX("Lex error: unexpected state %d", LEX_STATE()); return NULL; }
+(ts_parse_action){ .type = ts_parse_action_type_accept }
 
 
 /*
diff --git a/src/compiler/generate_code/c_code.cc b/src/compiler/generate_code/c_code.cc
index 2104863d..036d40a1 100644
--- a/src/compiler/generate_code/c_code.cc
+++ b/src/compiler/generate_code/c_code.cc
@@ -100,7 +100,7 @@ namespace tree_sitter {
             }
 
             string condition_for_character_range(const rules::CharacterRange &range) {
-                string lookahead("LOOKAHEAD_CHAR()");
+                string lookahead("lookahead");
                 if (range.min == range.max) {
                     return lookahead + " == '" + character_code(range.min) + "'";
                 } else {
@@ -173,7 +173,7 @@ namespace tree_sitter {
                     body += _case(std::to_string(i), switch_on_lookahead_char(lex_table.states[i]));
                 body += _case("ts_lex_state_error", switch_on_lookahead_char(lex_table.error_state));
                 body += _default("LEX_PANIC();");
-                return _switch("LEX_STATE()", body);
+                return _switch("lex_state", body);
             }
 
             string symbol_count() {