Require a terminator at the ends of some compound statements

Fixes #44

corpus/statements.txt

@@ -322,7 +322,7 @@ do_something() {
 }
 
 function do_something_else() {
-  echo ok
+  a | xargs -I{} find xml/{} -type f
 }
 
 function do_yet_another_thing {
@@ -337,7 +337,16 @@ function do_yet_another_thing {
     (compound_statement (command (command_name (word)) (word))))
   (function_definition
     (word)
-    (compound_statement (command (command_name (word)) (word))))
+    (compound_statement
+      (pipeline
+        (command (command_name (word)))
+        (command
+          (command_name (word))
+          (concatenation (word))
+          (word)
+          (concatenation (word))
+          (word)
+          (word)))))
   (redirected_statement (function_definition
     (word)
     (compound_statement (command (command_name (word)) (word))))

grammar.js

@@ -18,6 +18,7 @@ module.exports = grammar({
     $._statement,
     $._terminator,
     $._literal,
+    $._statements2,
     $._primary_expression,
     $._simple_variable_name,
     $._special_variable_name,
@@ -62,6 +63,12 @@ module.exports = grammar({
       optional($._terminator)
     )),
 
+    _statements2: $ => repeat1(seq(
+      $._statement,
+      optional(seq('\n', $.heredoc_body)),
+      $._terminator
+    )),
+
     _terminated_statement: $ => seq(
       $._statement,
       $._terminator
@@ -133,7 +140,7 @@ module.exports = grammar({
 
     do_group: $ => seq(
       'do',
-      optional($._statements),
+      optional($._statements2),
       'done'
     ),
 
@@ -141,7 +148,7 @@ module.exports = grammar({
       'if',
       $._terminated_statement,
       'then',
-      optional($._statements),
+      optional($._statements2),
       repeat($.elif_clause),
       optional($.else_clause),
       'fi'
@@ -151,12 +158,12 @@ module.exports = grammar({
       'elif',
       $._terminated_statement,
       'then',
-      optional($._statements)
+      optional($._statements2)
     ),
 
     else_clause: $ => seq(
       'else',
-      optional($._statements)
+      optional($._statements2)
     ),
 
     case_statement: $ => seq(
@@ -198,7 +205,11 @@ module.exports = grammar({
 
     compound_statement: $ => seq(
       '{',
-      optional($._statements),
+      repeat(seq(
+        $._statement,
+        optional(seq('\n', $.heredoc_body)),
+        $._terminator
+      )),
       '}'
     ),
 

src/grammar.json

@@ -97,6 +97,43 @@
         ]
       }
     },
+    "_statements2": {
+      "type": "REPEAT1",
+      "content": {
+        "type": "SEQ",
+        "members": [
+          {
+            "type": "SYMBOL",
+            "name": "_statement"
+          },
+          {
+            "type": "CHOICE",
+            "members": [
+              {
+                "type": "SEQ",
+                "members": [
+                  {
+                    "type": "STRING",
+                    "value": "\n"
+                  },
+                  {
+                    "type": "SYMBOL",
+                    "name": "heredoc_body"
+                  }
+                ]
+              },
+              {
+                "type": "BLANK"
+              }
+            ]
+          },
+          {
+            "type": "SYMBOL",
+            "name": "_terminator"
+          }
+        ]
+      }
+    },
     "_terminated_statement": {
       "type": "SEQ",
       "members": [
@@ -376,7 +413,7 @@
           "members": [
             {
               "type": "SYMBOL",
-              "name": "_statements"
+              "name": "_statements2"
             },
             {
               "type": "BLANK"
@@ -409,7 +446,7 @@
           "members": [
             {
               "type": "SYMBOL",
-              "name": "_statements"
+              "name": "_statements2"
             },
             {
               "type": "BLANK"
@@ -461,7 +498,7 @@
           "members": [
             {
               "type": "SYMBOL",
-              "name": "_statements"
+              "name": "_statements2"
             },
             {
               "type": "BLANK"
@@ -482,7 +519,7 @@
           "members": [
             {
               "type": "SYMBOL",
-              "name": "_statements"
+              "name": "_statements2"
             },
             {
               "type": "BLANK"
@@ -736,17 +773,42 @@
           "value": "{"
         },
         {
-          "type": "CHOICE",
+          "type": "REPEAT",
+          "content": {
+            "type": "SEQ",
             "members": [
               {
                 "type": "SYMBOL",
-              "name": "_statements"
+                "name": "_statement"
+              },
+              {
+                "type": "CHOICE",
+                "members": [
+                  {
+                    "type": "SEQ",
+                    "members": [
+                      {
+                        "type": "STRING",
+                        "value": "\n"
+                      },
+                      {
+                        "type": "SYMBOL",
+                        "name": "heredoc_body"
+                      }
+                    ]
                   },
                   {
                     "type": "BLANK"
                   }
                 ]
               },
+              {
+                "type": "SYMBOL",
+                "name": "_terminator"
+              }
+            ]
+          }
+        },
         {
           "type": "STRING",
           "value": "}"
@@ -2310,6 +2372,7 @@
     "_statement",
     "_terminator",
     "_literal",
+    "_statements2",
     "_primary_expression",
     "_simple_variable_name",
     "_special_variable_name"