219 lines
4.2 KiB
Factor
219 lines
4.2 KiB
Factor
! Copyright (C) 2007 Chris Double.
|
|
! See http://factorcode.org/license.txt for BSD license.
|
|
!
|
|
USING: continuations kernel tools.test strings namespaces make arrays
|
|
sequences peg peg.private peg.parsers words math accessors ;
|
|
IN: peg.tests
|
|
|
|
{ } [ reset-pegs ] unit-test
|
|
|
|
[
|
|
"endbegin" "begin" token parse
|
|
] must-fail
|
|
|
|
{ "begin" "end" } [
|
|
"beginend" "begin" token (parse)
|
|
[ ast>> ] [ remaining>> ] bi
|
|
>string
|
|
] unit-test
|
|
|
|
[
|
|
"" CHAR: a CHAR: z range parse
|
|
] must-fail
|
|
|
|
[
|
|
"1bcd" CHAR: a CHAR: z range parse
|
|
] must-fail
|
|
|
|
{ CHAR: a } [
|
|
"abcd" CHAR: a CHAR: z range parse
|
|
] unit-test
|
|
|
|
{ CHAR: z } [
|
|
"zbcd" CHAR: a CHAR: z range parse
|
|
] unit-test
|
|
|
|
[
|
|
"bad" "a" token "b" token 2array seq parse
|
|
] must-fail
|
|
|
|
{ V{ "g" "o" } } [
|
|
"good" "g" token "o" token 2array seq parse
|
|
] unit-test
|
|
|
|
{ "a" } [
|
|
"abcd" "a" token "b" token 2array choice parse
|
|
] unit-test
|
|
|
|
{ "b" } [
|
|
"bbcd" "a" token "b" token 2array choice parse
|
|
] unit-test
|
|
|
|
[
|
|
"cbcd" "a" token "b" token 2array choice parse
|
|
] must-fail
|
|
|
|
[
|
|
"" "a" token "b" token 2array choice parse
|
|
] must-fail
|
|
|
|
{ 0 } [
|
|
"" "a" token repeat0 parse length
|
|
] unit-test
|
|
|
|
{ 0 } [
|
|
"b" "a" token repeat0 parse length
|
|
] unit-test
|
|
|
|
{ V{ "a" "a" "a" } } [
|
|
"aaab" "a" token repeat0 parse
|
|
] unit-test
|
|
|
|
[
|
|
"" "a" token repeat1 parse
|
|
] must-fail
|
|
|
|
[
|
|
"b" "a" token repeat1 parse
|
|
] must-fail
|
|
|
|
{ V{ "a" "a" "a" } } [
|
|
"aaab" "a" token repeat1 parse
|
|
] unit-test
|
|
|
|
{ V{ "a" "b" } } [
|
|
"ab" "a" token optional "b" token 2array seq parse
|
|
] unit-test
|
|
|
|
{ V{ f "b" } } [
|
|
"b" "a" token optional "b" token 2array seq parse
|
|
] unit-test
|
|
|
|
[
|
|
"cb" "a" token optional "b" token 2array seq parse
|
|
] must-fail
|
|
|
|
{ V{ CHAR: a CHAR: b } } [
|
|
"ab" "a" token ensure CHAR: a CHAR: z range dup 3array seq parse
|
|
] unit-test
|
|
|
|
[
|
|
"bb" "a" token ensure CHAR: a CHAR: z range 2array seq parse
|
|
] must-fail
|
|
|
|
{ t } [
|
|
"a+b"
|
|
"a" token "+" token dup ensure-not 2array seq "++" token 2array choice "b" token 3array seq
|
|
parse [ t ] [ f ] if
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"a++b"
|
|
"a" token "+" token dup ensure-not 2array seq "++" token 2array choice "b" token 3array seq
|
|
parse [ t ] [ f ] if
|
|
] unit-test
|
|
|
|
{ t } [
|
|
"a+b"
|
|
"a" token "+" token "++" token 2array choice "b" token 3array seq
|
|
parse [ t ] [ f ] if
|
|
] unit-test
|
|
|
|
[
|
|
"a++b"
|
|
"a" token "+" token "++" token 2array choice "b" token 3array seq
|
|
parse [ t ] [ f ] if
|
|
] must-fail
|
|
|
|
{ 1 } [
|
|
"a" "a" token [ drop 1 ] action parse
|
|
] unit-test
|
|
|
|
{ V{ 1 1 } } [
|
|
"aa" "a" token [ drop 1 ] action dup 2array seq parse
|
|
] unit-test
|
|
|
|
[
|
|
"b" "a" token [ drop 1 ] action parse
|
|
] must-fail
|
|
|
|
[
|
|
"b" [ CHAR: a = ] satisfy parse
|
|
] must-fail
|
|
|
|
{ CHAR: a } [
|
|
"a" [ CHAR: a = ] satisfy parse
|
|
] unit-test
|
|
|
|
{ "a" } [
|
|
" a" "a" token sp parse
|
|
] unit-test
|
|
|
|
{ "a" } [
|
|
"a" "a" token sp parse
|
|
] unit-test
|
|
|
|
{ V{ "a" } } [
|
|
"[a]" "[" token hide "a" token "]" token hide 3array seq parse
|
|
] unit-test
|
|
|
|
[
|
|
"a]" "[" token hide "a" token "]" token hide 3array seq parse
|
|
] must-fail
|
|
|
|
|
|
{ V{ "1" "-" "1" } V{ "1" "+" "1" } } [
|
|
[
|
|
[ "1" token , "-" token , "1" token , ] seq* ,
|
|
[ "1" token , "+" token , "1" token , ] seq* ,
|
|
] choice*
|
|
"1-1" over parse swap
|
|
"1+1" swap parse
|
|
] unit-test
|
|
|
|
: expr ( -- parser )
|
|
! Test direct left recursion. Currently left recursion should cause a
|
|
! failure of that parser.
|
|
[ expr ] delay "+" token "1" token 3seq "1" token 2choice ;
|
|
|
|
{ V{ V{ "1" "+" "1" } "+" "1" } } [
|
|
"1+1+1" expr parse
|
|
] unit-test
|
|
|
|
{ t } [
|
|
! Ensure a circular parser doesn't loop infinitely
|
|
[ f , "a" token , ] seq*
|
|
dup peg>> parsers>>
|
|
dupd 0 swap set-nth compile word?
|
|
] unit-test
|
|
|
|
[
|
|
"A" [ drop t ] satisfy [ 66 >= ] semantic parse
|
|
] must-fail
|
|
|
|
{ CHAR: B } [
|
|
"B" [ drop t ] satisfy [ 66 >= ] semantic parse
|
|
] unit-test
|
|
|
|
{ f } [ \ + T{ parser f f f } equal? ] unit-test
|
|
|
|
USE: compiler
|
|
|
|
{ } [ disable-optimizer ] unit-test
|
|
|
|
{ } [ "" epsilon parse drop ] unit-test
|
|
|
|
{ } [ enable-optimizer ] unit-test
|
|
|
|
{ [ ] } [ "" epsilon [ drop [ [ ] ] call ] action parse ] unit-test
|
|
|
|
{
|
|
T{ parse-error
|
|
{ position 0 }
|
|
{ got "fbcd" }
|
|
{ messages V{ "'a'" "'b'" } }
|
|
}
|
|
} [
|
|
[ "fbcd" "a" token "b" token 2array choice parse ] [ ] recover
|
|
] unit-test
|