Expand grammar

corpus/lists.txt

@@ -47,11 +47,11 @@ foobar = ['answer', 42]
 List Access
 ==================
 
-foobar = ['answer', 42]
+x = foobar.0
-the_answer = foobar.1
 
 ---
 
+
 (root
   (item
     (statement
@@ -62,29 +62,7 @@ the_answer = foobar.1
               (identifier))
             (operator)
             (expression
-              (value
+              (identifier)))))))
-                (list
-                  (value
-                    (string))
-                  (value
-                    (integer))))))))))
-  (item
-    (statement
-      (open_statement
-        (expression
-          (identifier)))))
-  (item
-    (statement
-      (open_statement
-        (expression
-          (operation
-            (expression
-              (value
-                (integer)))
-            (operator)
-            (expression
-              (value
-                (integer)))))))))
 
 ==================
 List Mutation

corpus/statements.txt

@@ -72,17 +72,17 @@ x = 1 + 1
   (item
     (statement
       (open_statement
-        (expression
-          (operation
         (expression
           (operation
             (expression
               (identifier))
             (operator)
+            (expression
+              (operation
                 (expression
                   (value
-                    (integer)))))
+                    (integer)))
                 (operator)
                 (expression
                   (value
-                (integer)))))))))
+                    (integer)))))))))))

corpus/tables.txt

@@ -31,8 +31,6 @@ foobar = table <text, number> {
     ['answer', 42]
 }
 
-foobar
-
 ---
 
 (root
@@ -53,21 +51,12 @@ foobar
                     (value
                       (string))
                     (value
-                      (integer)))))))))))
+                      (integer))))))))))))
-  (item
-    (statement
-      (open_statement
-        (expression
-          (identifier))))))
           
 ==================
 Table Access
 ==================
 
-foobar = table <text, number> {
-    ['answer', 42]
-}
-
 select number from foobar where text == 'answer'
 
 ---
@@ -102,10 +91,6 @@ select number from foobar where text == 'answer'
 Table Insert
 ==================
 
-foobar = table <text, number> {
-    ['answer', 42]
-}
-
 insert ['bob was here', 0] into foobar
 
 ---
@@ -115,23 +100,20 @@ insert ['bob was here', 0] into foobar
     (statement
       (open_statement
         (expression
-          (operation
+          (identifier)))))
-            (expression
-              (identifier))
-            (operator)
-            (expression
-              (value
-                (table
-                  (identifier)
-                  (identifier)
-                  (list
-                    (value
-                      (string))
-                    (value
-                      (integer)))))))))))
   (item
     (statement
       (open_statement
+        (expression
+          (operation
             (expression
               (value
-            (42)))))))
+                (list
+                  (value
+                    (string))
+                  (value
+                    (integer)))))
+            (operator)
+            (expression
+              (identifier))))))))
+

grammar.js

@@ -13,11 +13,14 @@ module.exports = grammar({
 
     comment: $ => prec.left(seq(token('#'), /.*/)),
 
-    statement: $ => choice(
+    statement: $ => prec.right(choice(
       $.open_statement,
-    ),
+      $.yield_statement,
+    )),
 
-    open_statement: $ => prec.left(seq($.expression)),
+    open_statement: $ => prec.left($.expression),
+
+    yield_statement: $ => seq($.open_statement, '->', $.open_statement),
 
     expression: $ => choice(
       $.value,
@@ -83,14 +86,28 @@ module.exports = grammar({
       '}',
     ),
 
-    operator: $ => choice(
+    operator: $ => prec(2, choice(
+      '=',
       '+',
       '-',
-      '=',
+      '*',
+      '/',
+      '%',
       '==',
-    ),
+      '+=',
+      '-=',
+      '&&',
+      '||',
+      'and',
+      'or',
+      'insert',
+      'into',
+      'select',
+      'from',
+      'where',
+    )),
 
-    operation: $ => prec.left(seq(
+    operation: $ => prec.right(seq(
       $.expression,
       $.operator, 
       $.expression,

src/grammar.json

@@ -43,26 +43,46 @@
       }
     },
     "statement": {
+      "type": "PREC_RIGHT",
+      "value": 0,
+      "content": {
         "type": "CHOICE",
         "members": [
           {
             "type": "SYMBOL",
             "name": "open_statement"
+          },
+          {
+            "type": "SYMBOL",
+            "name": "yield_statement"
           }
         ]
+      }
     },
     "open_statement": {
       "type": "PREC_LEFT",
       "value": 0,
       "content": {
+        "type": "SYMBOL",
+        "name": "expression"
+      }
+    },
+    "yield_statement": {
       "type": "SEQ",
       "members": [
         {
           "type": "SYMBOL",
-            "name": "expression"
+          "name": "open_statement"
+        },
+        {
+          "type": "STRING",
+          "value": "->"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "open_statement"
         }
       ]
-      }
     },
     "expression": {
       "type": "CHOICE",
@@ -368,8 +388,15 @@
       ]
     },
     "operator": {
+      "type": "PREC",
+      "value": 2,
+      "content": {
         "type": "CHOICE",
         "members": [
+          {
+            "type": "STRING",
+            "value": "="
+          },
           {
             "type": "STRING",
             "value": "+"
@@ -380,16 +407,69 @@
           },
           {
             "type": "STRING",
-          "value": "="
+            "value": "*"
+          },
+          {
+            "type": "STRING",
+            "value": "/"
+          },
+          {
+            "type": "STRING",
+            "value": "%"
           },
           {
             "type": "STRING",
             "value": "=="
+          },
+          {
+            "type": "STRING",
+            "value": "+="
+          },
+          {
+            "type": "STRING",
+            "value": "-="
+          },
+          {
+            "type": "STRING",
+            "value": "&&"
+          },
+          {
+            "type": "STRING",
+            "value": "||"
+          },
+          {
+            "type": "STRING",
+            "value": "and"
+          },
+          {
+            "type": "STRING",
+            "value": "or"
+          },
+          {
+            "type": "STRING",
+            "value": "insert"
+          },
+          {
+            "type": "STRING",
+            "value": "into"
+          },
+          {
+            "type": "STRING",
+            "value": "select"
+          },
+          {
+            "type": "STRING",
+            "value": "from"
+          },
+          {
+            "type": "STRING",
+            "value": "where"
           }
         ]
+      }
     },
     "operation": {
-      "type": "PREC_LEFT",
+      "type": "PREC_RIGHT",
       "value": 0,
       "content": {
         "type": "SEQ",

src/node-types.json

@@ -196,6 +196,10 @@
         {
           "type": "open_statement",
           "named": true
+        },
+        {
+          "type": "yield_statement",
+          "named": true
         }
       ]
     }
@@ -271,14 +275,45 @@
       ]
     }
   },
+  {
+    "type": "yield_statement",
+    "named": true,
+    "fields": {},
+    "children": {
+      "multiple": true,
+      "required": true,
+      "types": [
+        {
+          "type": "open_statement",
+          "named": true
+        }
+      ]
+    }
+  },
   {
     "type": "#",
     "named": false
   },
+  {
+    "type": "%",
+    "named": false
+  },
+  {
+    "type": "&&",
+    "named": false
+  },
+  {
+    "type": "*",
+    "named": false
+  },
   {
     "type": "+",
     "named": false
   },
+  {
+    "type": "+=",
+    "named": false
+  },
   {
     "type": ",",
     "named": false
@@ -287,6 +322,18 @@
     "type": "-",
     "named": false
   },
+  {
+    "type": "-=",
+    "named": false
+  },
+  {
+    "type": "->",
+    "named": false
+  },
+  {
+    "type": "/",
+    "named": false
+  },
   {
     "type": "<",
     "named": false
@@ -311,6 +358,10 @@
     "type": "]",
     "named": false
   },
+  {
+    "type": "and",
+    "named": false
+  },
   {
     "type": "else",
     "named": false
@@ -327,6 +378,10 @@
     "type": "float",
     "named": true
   },
+  {
+    "type": "from",
+    "named": false
+  },
   {
     "type": "function",
     "named": false
@@ -339,18 +394,34 @@
     "type": "if",
     "named": false
   },
+  {
+    "type": "insert",
+    "named": false
+  },
   {
     "type": "integer",
     "named": true
   },
+  {
+    "type": "into",
+    "named": false
+  },
   {
     "type": "map",
     "named": false
   },
+  {
+    "type": "or",
+    "named": false
+  },
   {
     "type": "output",
     "named": false
   },
+  {
+    "type": "select",
+    "named": false
+  },
   {
     "type": "string",
     "named": true
@@ -367,10 +438,18 @@
     "type": "true",
     "named": false
   },
+  {
+    "type": "where",
+    "named": false
+  },
   {
     "type": "{",
     "named": false
   },
+  {
+    "type": "||",
+    "named": false
+  },
   {
     "type": "}",
     "named": false