514 lines
12 KiB
Factor
514 lines
12 KiB
Factor
! Copyright (C) 2007 Chris Double.
|
|
! See http://factorcode.org/license.txt for BSD license.
|
|
!
|
|
USING: kernel tools.test peg peg.ebnf words math math.parser
|
|
sequences accessors peg.parsers parser namespaces arrays
|
|
strings ;
|
|
IN: peg.ebnf.tests
|
|
|
|
{ T{ ebnf-non-terminal f "abc" } } [
|
|
"abc" 'non-terminal' parse ast>>
|
|
] unit-test
|
|
|
|
{ T{ ebnf-terminal f "55" } } [
|
|
"'55'" 'terminal' parse ast>>
|
|
] unit-test
|
|
|
|
{
|
|
T{ ebnf-rule f
|
|
"digit"
|
|
T{ ebnf-choice f
|
|
V{ T{ ebnf-terminal f "1" } T{ ebnf-terminal f "2" } }
|
|
}
|
|
}
|
|
} [
|
|
"digit = '1' | '2'" 'rule' parse ast>>
|
|
] unit-test
|
|
|
|
{
|
|
T{ ebnf-rule f
|
|
"digit"
|
|
T{ ebnf-sequence f
|
|
V{ T{ ebnf-terminal f "1" } T{ ebnf-terminal f "2" } }
|
|
}
|
|
}
|
|
} [
|
|
"digit = '1' '2'" 'rule' parse ast>>
|
|
] unit-test
|
|
|
|
{
|
|
T{ ebnf-choice f
|
|
V{
|
|
T{ ebnf-sequence f
|
|
V{ T{ ebnf-non-terminal f "one" } T{ ebnf-non-terminal f "two" } }
|
|
}
|
|
T{ ebnf-non-terminal f "three" }
|
|
}
|
|
}
|
|
} [
|
|
"one two | three" 'choice' parse ast>>
|
|
] unit-test
|
|
|
|
{
|
|
T{ ebnf-sequence f
|
|
V{
|
|
T{ ebnf-non-terminal f "one" }
|
|
T{ ebnf-whitespace f
|
|
T{ ebnf-choice f
|
|
V{ T{ ebnf-non-terminal f "two" } T{ ebnf-non-terminal f "three" } }
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} [
|
|
"one {two | three}" 'choice' parse ast>>
|
|
] unit-test
|
|
|
|
{
|
|
T{ ebnf-sequence f
|
|
V{
|
|
T{ ebnf-non-terminal f "one" }
|
|
T{ ebnf-repeat0 f
|
|
T{ ebnf-sequence f
|
|
V{
|
|
T{ ebnf-choice f
|
|
V{ T{ ebnf-non-terminal f "two" } T{ ebnf-non-terminal f "three" } }
|
|
}
|
|
T{ ebnf-non-terminal f "four" }
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} [
|
|
"one ((two | three) four)*" 'choice' parse ast>>
|
|
] unit-test
|
|
|
|
{
|
|
T{ ebnf-sequence f
|
|
V{
|
|
T{ ebnf-non-terminal f "one" }
|
|
T{ ebnf-optional f T{ ebnf-non-terminal f "two" } }
|
|
T{ ebnf-non-terminal f "three" }
|
|
}
|
|
}
|
|
} [
|
|
"one ( two )? three" 'choice' parse ast>>
|
|
] unit-test
|
|
|
|
{ "foo" } [
|
|
"\"foo\"" 'identifier' parse ast>>
|
|
] unit-test
|
|
|
|
{ "foo" } [
|
|
"'foo'" 'identifier' parse ast>>
|
|
] unit-test
|
|
|
|
{ "foo" } [
|
|
"foo" 'non-terminal' parse ast>> ebnf-non-terminal-symbol
|
|
] unit-test
|
|
|
|
{ "foo" } [
|
|
"foo]" 'non-terminal' parse ast>> ebnf-non-terminal-symbol
|
|
] unit-test
|
|
|
|
{ V{ "a" "b" } } [
|
|
"ab" [EBNF foo='a' 'b' EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ 1 "b" } } [
|
|
"ab" [EBNF foo=('a')[[ drop 1 ]] 'b' EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ 1 2 } } [
|
|
"ab" [EBNF foo=('a') [[ drop 1 ]] ('b') [[ drop 2 ]] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ CHAR: A } [
|
|
"A" [EBNF foo=[A-Z] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ CHAR: Z } [
|
|
"Z" [EBNF foo=[A-Z] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"0" [EBNF foo=[A-Z] EBNF] call
|
|
] unit-test
|
|
|
|
{ CHAR: 0 } [
|
|
"0" [EBNF foo=[^A-Z] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"A" [EBNF foo=[^A-Z] EBNF] call
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"Z" [EBNF foo=[^A-Z] EBNF] call
|
|
] unit-test
|
|
|
|
{ V{ "1" "+" "foo" } } [
|
|
"1+1" [EBNF foo='1' '+' '1' [[ drop "foo" ]] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ "foo" } [
|
|
"1+1" [EBNF foo='1' '+' '1' => [[ drop "foo" ]] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ "foo" } [
|
|
"1+1" [EBNF foo='1' '+' '1' => [[ drop "foo" ]] | '1' '-' '1' => [[ drop "bar" ]] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ "bar" } [
|
|
"1-1" [EBNF foo='1' '+' '1' => [[ drop "foo" ]] | '1' '-' '1' => [[ drop "bar" ]] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ 6 } [
|
|
"4+2" [EBNF num=[0-9] => [[ digit> ]] foo=num:x '+' num:y => [[ x y + ]] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ 6 } [
|
|
"4+2" [EBNF foo=[0-9]:x '+' [0-9]:y => [[ x digit> y digit> + ]] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ 10 } [
|
|
{ 1 2 3 4 } [EBNF num=. ?[ number? ]? list=list:x num:y => [[ x y + ]] | num EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ f } [
|
|
{ "a" 2 3 4 } [EBNF num=. ?[ number? ]? list=list:x num:y => [[ x y + ]] | num EBNF] call
|
|
] unit-test
|
|
|
|
{ 3 } [
|
|
{ 1 2 "a" 4 } [EBNF num=. ?[ number? ]? list=list:x num:y => [[ x y + ]] | num EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"ab" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF] call
|
|
] unit-test
|
|
|
|
{ V{ "a" " " "b" } } [
|
|
"a b" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" "\t" "b" } } [
|
|
"a\tb" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" "\n" "b" } } [
|
|
"a\nb" [EBNF -=" " | "\t" | "\n" foo="a" - "b" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" f "b" } } [
|
|
"ab" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" " " "b" } } [
|
|
"a b" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
|
|
{ V{ "a" "\t" "b" } } [
|
|
"a\tb" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" "\n" "b" } } [
|
|
"a\nb" [EBNF -=" " | "\t" | "\n" foo="a" (-)? "b" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" "b" } } [
|
|
"ab" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" "b" } } [
|
|
"a\tb" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" "b" } } [
|
|
"a\nb" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"axb" [EBNF -=(" " | "\t" | "\n")? => [[ drop ignore ]] foo="a" - "b" EBNF] call
|
|
] unit-test
|
|
|
|
{ V{ V{ 49 } "+" V{ 49 } } } [
|
|
#! Test direct left recursion.
|
|
#! Using packrat, so first part of expr fails, causing 2nd choice to be used
|
|
"1+1" [EBNF num=([0-9])+ expr=expr "+" num | num EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ V{ V{ 49 } "+" V{ 49 } } "+" V{ 49 } } } [
|
|
#! Test direct left recursion.
|
|
#! Using packrat, so first part of expr fails, causing 2nd choice to be used
|
|
"1+1+1" [EBNF num=([0-9])+ expr=expr "+" num | num EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ V{ V{ 49 } "+" V{ 49 } } "+" V{ 49 } } } [
|
|
#! Test indirect left recursion.
|
|
#! Using packrat, so first part of expr fails, causing 2nd choice to be used
|
|
"1+1+1" [EBNF num=([0-9])+ x=expr expr=x "+" num | num EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"abcd='9' | ('8'):x => [[ x ]]" 'ebnf' parse parse-result-remaining empty?
|
|
] unit-test
|
|
|
|
EBNF: primary
|
|
Primary = PrimaryNoNewArray
|
|
PrimaryNoNewArray = ClassInstanceCreationExpression
|
|
| MethodInvocation
|
|
| FieldAccess
|
|
| ArrayAccess
|
|
| "this"
|
|
ClassInstanceCreationExpression = "new" ClassOrInterfaceType "(" ")"
|
|
| Primary "." "new" Identifier "(" ")"
|
|
MethodInvocation = Primary "." MethodName "(" ")"
|
|
| MethodName "(" ")"
|
|
FieldAccess = Primary "." Identifier
|
|
| "super" "." Identifier
|
|
ArrayAccess = Primary "[" Expression "]"
|
|
| ExpressionName "[" Expression "]"
|
|
ClassOrInterfaceType = ClassName | InterfaceTypeName
|
|
ClassName = "C" | "D"
|
|
InterfaceTypeName = "I" | "J"
|
|
Identifier = "x" | "y" | ClassOrInterfaceType
|
|
MethodName = "m" | "n"
|
|
ExpressionName = Identifier
|
|
Expression = "i" | "j"
|
|
main = Primary
|
|
;EBNF
|
|
|
|
{ "this" } [
|
|
"this" primary ast>>
|
|
] unit-test
|
|
|
|
{ V{ "this" "." "x" } } [
|
|
"this.x" primary ast>>
|
|
] unit-test
|
|
|
|
{ V{ V{ "this" "." "x" } "." "y" } } [
|
|
"this.x.y" primary ast>>
|
|
] unit-test
|
|
|
|
{ V{ V{ "this" "." "x" } "." "m" "(" ")" } } [
|
|
"this.x.m()" primary ast>>
|
|
] unit-test
|
|
|
|
{ V{ V{ V{ "x" "[" "i" "]" } "[" "j" "]" } "." "y" } } [
|
|
"x[i][j].y" primary ast>>
|
|
] unit-test
|
|
|
|
'ebnf' compile must-infer
|
|
|
|
{ V{ V{ "a" "b" } "c" } } [
|
|
"abc" [EBNF a="a" "b" foo=(a "c") EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ V{ "a" "b" } "c" } } [
|
|
"abc" [EBNF a="a" "b" foo={a "c"} EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ V{ "a" "b" } "c" } } [
|
|
"abc" [EBNF a="a" "b" foo=a "c" EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"a bc" [EBNF a="a" "b" foo=(a "c") EBNF] call
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"a bc" [EBNF a="a" "b" foo=a "c" EBNF] call
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"a bc" [EBNF a="a" "b" foo={a "c"} EBNF] call
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"ab c" [EBNF a="a" "b" foo=a "c" EBNF] call
|
|
] unit-test
|
|
|
|
{ V{ V{ "a" "b" } "c" } } [
|
|
"ab c" [EBNF a="a" "b" foo={a "c"} EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"ab c" [EBNF a="a" "b" foo=(a "c") EBNF] call
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"a b c" [EBNF a="a" "b" foo=a "c" EBNF] call
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"a b c" [EBNF a="a" "b" foo=(a "c") EBNF] call
|
|
] unit-test
|
|
|
|
{ f } [
|
|
"a b c" [EBNF a="a" "b" foo={a "c"} EBNF] call
|
|
] unit-test
|
|
|
|
{ V{ V{ V{ "a" "b" } "c" } V{ V{ "a" "b" } "c" } } } [
|
|
"ab cab c" [EBNF a="a" "b" foo={a "c"}* EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ } } [
|
|
"ab cab c" [EBNF a="a" "b" foo=(a "c")* EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ V{ V{ "a" "b" } "c" } V{ V{ "a" "b" } "c" } } } [
|
|
"ab c ab c" [EBNF a="a" "b" foo={a "c"}* EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ } } [
|
|
"ab c ab c" [EBNF a="a" "b" foo=(a "c")* EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" "a" "a" } } [
|
|
"aaa" [EBNF a=('a')* b=!('b') a:x => [[ x ]] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"aaa" [EBNF a=('a')* b=!('b') a:x => [[ x ]] EBNF] call ast>>
|
|
"aaa" [EBNF a=('a')* b=!('b') (a):x => [[ x ]] EBNF] call ast>> =
|
|
] unit-test
|
|
|
|
{ V{ "a" "a" "a" } } [
|
|
"aaa" [EBNF a=('a')* b=a:x => [[ x ]] EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"aaa" [EBNF a=('a')* b=a:x => [[ x ]] EBNF] call ast>>
|
|
"aaa" [EBNF a=('a')* b=(a):x => [[ x ]] EBNF] call ast>> =
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"number=(digit)+:n 'a'" 'ebnf' parse remaining>> length zero?
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"number=(digit)+ 'a'" 'ebnf' parse remaining>> length zero?
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"number=digit+ 'a'" 'ebnf' parse remaining>> length zero?
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"number=digit+:n 'a'" 'ebnf' parse remaining>> length zero?
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"foo=(name):n !(keyword) => [[ n ]]" 'rule' parse ast>>
|
|
"foo=name:n !(keyword) => [[ n ]]" 'rule' parse ast>> =
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"foo=!(keyword) (name):n => [[ n ]]" 'rule' parse ast>>
|
|
"foo=!(keyword) name:n => [[ n ]]" 'rule' parse ast>> =
|
|
] unit-test
|
|
|
|
<<
|
|
EBNF: parser1
|
|
foo='a'
|
|
;EBNF
|
|
>>
|
|
|
|
EBNF: parser2
|
|
foo=<foreign parser1 foo> 'b'
|
|
;EBNF
|
|
|
|
EBNF: parser3
|
|
foo=<foreign parser1> 'c'
|
|
;EBNF
|
|
|
|
EBNF: parser4
|
|
foo=<foreign any-char> 'd'
|
|
;EBNF
|
|
|
|
{ "a" } [
|
|
"a" parser1 ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" "b" } } [
|
|
"ab" parser2 ast>>
|
|
] unit-test
|
|
|
|
{ V{ "a" "c" } } [
|
|
"ac" parser3 ast>>
|
|
] unit-test
|
|
|
|
{ V{ CHAR: a "d" } } [
|
|
"ad" parser4 ast>>
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"USING: kernel peg.ebnf ; [EBNF foo='a' '\n' => [[ drop \"\n\" ]] EBNF]" eval drop t
|
|
] unit-test
|
|
|
|
[
|
|
"USING: peg.ebnf ; [EBNF foo='a' foo='b' EBNF]" eval drop
|
|
] must-fail
|
|
|
|
{ t } [
|
|
#! Rule lookup occurs in a namespace. This causes an incorrect duplicate rule
|
|
#! if a var in a namespace is set. This unit test is to remind me to fix this.
|
|
[ "fail" "foo" set "foo='a'" 'ebnf' parse ast>> transform drop t ] with-scope
|
|
] unit-test
|
|
|
|
#! Tokenizer tests
|
|
{ V{ "a" CHAR: b } } [
|
|
"ab" [EBNF tokenizer=default foo="a" . EBNF] call ast>>
|
|
] unit-test
|
|
|
|
TUPLE: ast-number value ;
|
|
|
|
EBNF: a-tokenizer
|
|
Letter = [a-zA-Z]
|
|
Digit = [0-9]
|
|
Digits = Digit+
|
|
SingleLineComment = "//" (!("\n") .)* "\n" => [[ ignore ]]
|
|
MultiLineComment = "/*" (!("*/") .)* "*/" => [[ ignore ]]
|
|
Space = " " | "\t" | "\r" | "\n" | SingleLineComment | MultiLineComment
|
|
Spaces = Space* => [[ ignore ]]
|
|
Number = Digits:ws '.' Digits:fs => [[ ws "." fs 3array concat >string string>number ast-number boa ]]
|
|
| Digits => [[ >string string>number ast-number boa ]]
|
|
Special = "(" | ")" | "{" | "}" | "[" | "]" | "," | ";"
|
|
| "?" | ":" | "!==" | "~=" | "===" | "==" | "=" | ">="
|
|
| ">" | "<=" | "<" | "++" | "+=" | "+" | "--" | "-="
|
|
| "-" | "*=" | "*" | "/=" | "/" | "%=" | "%" | "&&="
|
|
| "&&" | "||=" | "||" | "." | "!"
|
|
Tok = Spaces (Number | Special )
|
|
;EBNF
|
|
|
|
{ V{ CHAR: 1 T{ ast-number f 23 } ";" CHAR: x } } [
|
|
"123;x" [EBNF bar = .
|
|
tokenizer = <foreign a-tokenizer Tok> foo=.
|
|
tokenizer=default baz=.
|
|
main = bar foo foo baz
|
|
EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ CHAR: 5 "+" CHAR: 2 } } [
|
|
"5+2" [EBNF
|
|
space=(" " | "\n")
|
|
number=[0-9]
|
|
operator=("*" | "+")
|
|
spaces=space* => [[ ignore ]]
|
|
tokenizer=spaces (number | operator)
|
|
main= . . .
|
|
EBNF] call ast>>
|
|
] unit-test
|
|
|
|
{ V{ CHAR: 5 "+" CHAR: 2 } } [
|
|
"5 + 2" [EBNF
|
|
space=(" " | "\n")
|
|
number=[0-9]
|
|
operator=("*" | "+")
|
|
spaces=space* => [[ ignore ]]
|
|
tokenizer=spaces (number | operator)
|
|
main= . . .
|
|
EBNF] call ast>>
|
|
] unit-test |