semantic
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github
grammar extras are ignored
https://tree-sitter.github.io/tree-sitter/creating-parsers#the-grammar-dsl
extras - an array of tokens that may appear anywhere in the language. This is often used for whitespace and comments. The default value of extras is to accept whitespace. To control whitespace explicitly, specify extras: $ => [] in your grammar.
input source file
foo
<?php
echo 'bar';
?>
baz
<?php
echo 'qux';
?>
quux
Applicable grammer rule: https://github.com/tree-sitter/tree-sitter-php/blob/41a408d5b996ef54d8b9e1b9a2469fad00c1b52b/src/grammar.json#L6241
output from tree-sitter
(program [0, 0] - [8, 4]
(text [0, 0] - [1, 0])
(php_tag [1, 0] - [1, 5])
(echo_statement [2, 0] - [2, 11]
(string [2, 5] - [2, 10]
(string_value [2, 6] - [2, 9])))
(text_interpolation [3, 0] - [5, 5]
(text [4, 0] - [5, 0])
(php_tag [5, 0] - [5, 5]))
(echo_statement [6, 0] - [6, 11]
(string [6, 5] - [6, 10]
(string_value [6, 6] - [6, 9])))
(text_interpolation [7, 0] - [8, 4]
(text [8, 0] - [8, 4])))
output from semantic
Right
( Term
{ getTerm = Program
{ ann = Loc
{ byteRange = Range
{ start = 0
, end = 505
}
, span = Span
{ start = Pos
{ line = 0
, column = 0
}
, end = Pos
{ line = 26
, column = 0
}
}
}
, extraChildren =
[ R1
( R1
( Text
{ ann = Loc
{ byteRange = Range
{ start = 0
, end = 4
}
, span = Span
{ start = Pos
{ line = 0
, column = 0
}
, end = Pos
{ line = 1
, column = 0
}
}
}
, text = "foo
"
}
)
)
, R1
( L1
( PhpTag
{ ann = Loc
{ byteRange = Range
{ start = 4
, end = 9
}
, span = Span
{ start = Pos
{ line = 1
, column = 0
}
, end = Pos
{ line = 1
, column = 5
}
}
}
, text = "<?php"
}
)
)
, L1
( Statement
{ getStatement = L1
( R1
( L1
( L1
( EchoStatement
{ ann = Loc
{ byteRange = Range
{ start = 10
, end = 21
}
, span = Span
{ start = Pos
{ line = 2
, column = 0
}
, end = Pos
{ line = 2
, column = 11
}
}
}
, extraChildren = L1
( Expression
{ getExpression = L1
( L1
( L1
( PrimaryExpression
{ getPrimaryExpression = L1
( L1
( L1
( L1
( Literal
{ getLiteral = R1
( R1
( R1
( String
{ ann = Loc
{ byteRange = Range
{ start = 15
, end = 20
}
, span = Span
{ start = Pos
{ line = 2
, column = 5
}
, end = Pos
{ line = 2
, column = 10
}
}
}
, text = "'bar'"
}
)
)
)
}
)
)
)
)
}
)
)
)
}
)
}
)
)
)
)
}
)
, L1
( Statement
{ getStatement = L1
( R1
( L1
( L1
( EchoStatement
{ ann = Loc
{ byteRange = Range
{ start = 35
, end = 46
}
, span = Span
{ start = Pos
{ line = 6
, column = 0
}
, end = Pos
{ line = 6
, column = 11
}
}
}
, extraChildren = L1
( Expression
{ getExpression = L1
( L1
( L1
( PrimaryExpression
{ getPrimaryExpression = L1
( L1
( L1
( L1
( Literal
{ getLiteral = R1
( R1
( R1
( String
{ ann = Loc
{ byteRange = Range
{ start = 40
, end = 45
}
, span = Span
{ start = Pos
{ line = 6
, column = 5
}
, end = Pos
{ line = 6
, column = 10
}
}
}
, text = "'qux'"
}
)
)
)
}
)
)
)
)
}
)
)
)
}
)
}
)
)
)
)
}
)
]
}
}
)
Problems:
-
bazis missing -
quuxis missing
