Add missing productions (#2280)

Author: poliorcetics

GRAMMAR.md

@@ -21,7 +21,7 @@ NEWLINE             = \n|\r\n
 RAW_STRING          = '[^']*'
 INDENTED_RAW_STRING = '''[^(''')]*'''
 STRING              = "[^"]*" # also processes \n \r \t \" \\ escapes
-INDENTED_STRING     = """[^("""]*""" # also processes \n \r \t \" \\ escapes
+INDENTED_STRING     = """[^(""")]*""" # also processes \n \r \t \" \\ escapes
 LINE_PREFIX         = @-|-@|@|-
 TEXT                = recipe text, only matches in a recipe body
 ```
@@ -50,46 +50,55 @@ item          : alias
               | import
               | module
               | recipe
-              | setting
+              | set
 
 eol           : NEWLINE
               | COMMENT NEWLINE
 
-alias         : 'alias' NAME ':=' NAME
+alias         : 'alias' NAME ':=' NAME eol
 
 assignment    : NAME ':=' expression eol
 
 export        : 'export' assignment
 
-setting       : 'set' 'allow-duplicate-recipes' boolean?
-              | 'set' 'allow-duplicate-variables' boolean?
-              | 'set' 'dotenv-filename' ':=' string
-              | 'set' 'dotenv-load' boolean?
-              | 'set' 'dotenv-path' ':=' string
-              | 'set' 'export' boolean?
-              | 'set' 'fallback' boolean?
-              | 'set' 'ignore-comments' boolean?
-              | 'set' 'positional-arguments' boolean?
-              | 'set' 'quiet' boolean?
-              | 'set' 'shell' ':=' '[' string (',' string)* ','? ']'
-              | 'set' 'tempdir ':=' string
-              | 'set' 'windows-powershell' boolean?
-              | 'set' 'windows-shell' ':=' '[' string (',' string)* ','? ']'
-
-import        : 'import' '?'? string?
-
-module        : 'mod' '?'? NAME string?
+set           : 'set' setting eol
+
+setting       : 'allow-duplicate-recipes' boolean?
+              | 'allow-duplicate-variables' boolean?
+              | 'dotenv-filename' ':=' string
+              | 'dotenv-load' boolean?
+              | 'dotenv-path' ':=' string
+              | 'dotenv-required' boolean?
+              | 'export' boolean?
+              | 'fallback' boolean?
+              | 'ignore-comments' boolean?
+              | 'positional-arguments' boolean?
+              | 'script-interpreter' ':=' string_list
+              | 'quiet' boolean?
+              | 'shell' ':=' string_list
+              | 'tempdir' ':=' string
+              | 'unstable' boolean?
+              | 'windows-powershell' boolean?
+              | 'windows-shell' ':=' string_list
 
 boolean       : ':=' ('true' | 'false')
 
+string_list   : '[' string (',' string)* ','? ']'
+
+import        : 'import' '?'? string? eol
+
+module        : 'mod' '?'? NAME string? eol
+
 expression    : 'if' condition '{' expression '}' 'else' '{' expression '}'
               | 'assert' '(' condition ',' expression ')'
+              | '/' expression
               | value '/' expression
               | value '+' expression
               | value
 
 condition     : expression '==' expression
               | expression '!=' expression
+              | expression '=~' expression
 
 value         : NAME '(' sequence? ')'
               | BACKTICK
@@ -106,7 +115,7 @@ string        : 'x'? STRING
 sequence      : expression ',' sequence
               | expression ','?
 
-recipe        : attributes* '@'? NAME parameter* variadic? ':' dependency* body?
+recipe        : attributes* '@'? NAME parameter* variadic? ':' dependency* eol body?
 
 attributes    : '[' attribute* ']' eol