feat: add integer

grammar.js

@@ -11,7 +11,6 @@ module.exports = grammar({
   name: "emm",
 
   rules: {
-    // TODO: add the actual grammar rules
-    source_file: $ => "hello"
-  }
+    integer: ($) => /0|[1-9]\d*/,
+  },
 });

src/grammar.json

@@ -2,9 +2,9 @@
   "$schema": "https://tree-sitter.github.io/tree-sitter/assets/schemas/grammar.schema.json",
   "name": "emm",
   "rules": {
-    "source_file": {
-      "type": "STRING",
-      "value": "hello"
+    "integer": {
+      "type": "PATTERN",
+      "value": "0|[1-9]\\d*"
     }
   },
   "extras": [

src/node-types.json

@@ -1,12 +1,8 @@
 [
   {
-    "type": "source_file",
+    "type": "integer",
     "named": true,
     "root": true,
     "fields": {}
-  },
-  {
-    "type": "hello",
-    "named": false
   }
 ]

src/parser.c

@@ -20,20 +20,20 @@
 #define SUPERTYPE_COUNT 0
 
 enum ts_symbol_identifiers {
-  anon_sym_hello = 1,
-  sym_source_file = 2,
+  aux_sym_integer_token1 = 1,
+  sym_integer = 2,
 };
 
 static const char * const ts_symbol_names[] = {
   [ts_builtin_sym_end] = "end",
-  [anon_sym_hello] = "hello",
-  [sym_source_file] = "source_file",
+  [aux_sym_integer_token1] = "integer_token1",
+  [sym_integer] = "integer",
 };
 
 static const TSSymbol ts_symbol_map[] = {
   [ts_builtin_sym_end] = ts_builtin_sym_end,
-  [anon_sym_hello] = anon_sym_hello,
-  [sym_source_file] = sym_source_file,
+  [aux_sym_integer_token1] = aux_sym_integer_token1,
+  [sym_integer] = sym_integer,
 };
 
 static const TSSymbolMetadata ts_symbol_metadata[] = {
@@ -41,11 +41,11 @@ static const TSSymbolMetadata ts_symbol_metadata[] = {
     .visible = false,
     .named = true,
   },
-  [anon_sym_hello] = {
-    .visible = true,
+  [aux_sym_integer_token1] = {
+    .visible = false,
     .named = false,
   },
-  [sym_source_file] = {
+  [sym_integer] = {
     .visible = true,
     .named = true,
   },
@@ -71,28 +71,21 @@ static bool ts_lex(TSLexer *lexer, TSStateId state) {
   eof = lexer->eof(lexer);
   switch (state) {
     case 0:
-      if (eof) ADVANCE(5);
-      if (lookahead == 'h') ADVANCE(1);
+      if (eof) ADVANCE(1);
+      if (lookahead == '0') ADVANCE(2);
       if (('\t' <= lookahead && lookahead <= '\r') ||
           lookahead == ' ') SKIP(0);
+      if (('1' <= lookahead && lookahead <= '9')) ADVANCE(3);
       END_STATE();
     case 1:
-      if (lookahead == 'e') ADVANCE(3);
-      END_STATE();
-    case 2:
-      if (lookahead == 'l') ADVANCE(4);
-      END_STATE();
-    case 3:
-      if (lookahead == 'l') ADVANCE(2);
-      END_STATE();
-    case 4:
-      if (lookahead == 'o') ADVANCE(6);
-      END_STATE();
-    case 5:
       ACCEPT_TOKEN(ts_builtin_sym_end);
       END_STATE();
-    case 6:
-      ACCEPT_TOKEN(anon_sym_hello);
+    case 2:
+      ACCEPT_TOKEN(aux_sym_integer_token1);
+      END_STATE();
+    case 3:
+      ACCEPT_TOKEN(aux_sym_integer_token1);
+      if (('0' <= lookahead && lookahead <= '9')) ADVANCE(3);
       END_STATE();
     default:
       return false;
@@ -109,11 +102,11 @@ static const TSLexerMode ts_lex_modes[STATE_COUNT] = {
 static const uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
   [STATE(0)] = {
     [ts_builtin_sym_end] = ACTIONS(1),
-    [anon_sym_hello] = ACTIONS(1),
+    [aux_sym_integer_token1] = ACTIONS(1),
   },
   [STATE(1)] = {
-    [sym_source_file] = STATE(3),
-    [anon_sym_hello] = ACTIONS(3),
+    [sym_integer] = STATE(3),
+    [aux_sym_integer_token1] = ACTIONS(3),
   },
 };
 
@@ -135,7 +128,7 @@ static const TSParseActionEntry ts_parse_actions[] = {
   [0] = {.entry = {.count = 0, .reusable = false}},
   [1] = {.entry = {.count = 1, .reusable = false}}, RECOVER(),
   [3] = {.entry = {.count = 1, .reusable = true}}, SHIFT(2),
-  [5] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_source_file, 1, 0, 0),
+  [5] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_integer, 1, 0, 0),
   [7] = {.entry = {.count = 1, .reusable = true}},  ACCEPT_INPUT(),
 };