Source

spix / t / pegparser.t

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#!/usr/bin/parrot

.sub _main :main
    load_bytecode 'Test/More.pbc'
    load_bytecode 'Spix/PEG/Parser.pbc'

    .local pmc exports, curr_namespace, test_namespace
    curr_namespace = get_namespace
    test_namespace = get_namespace [ 'Test'; 'More' ]
    exports = split " ", "plan ok is isa_ok skip todo"
    test_namespace.'export_to'(curr_namespace, exports)

    plan( 62 )

    test_leftarrow()
    test_slash()
    test_and()
    test_not()
    test_question()
    test_star()
    test_plus()
    test_open()
    test_close()
    test_dot()

    test_endofline()
    test_spacing()
    test_comment()
    test_endoffile()

    test_char()
    test_literal()
    test_range()
    test_class()
    test_identifier()
    test_definition()
    test_grammar()
.end

.sub test_leftarrow
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'LEFTARROW'("a<-b", 1)
    if null $P0 goto failed_match
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "leftarrow detected")
    goto passed_match
  failed_match:
    ok(0, "leftarrow detected")
  passed_match:

    $I1 = parser.'pos'()
    is($I1, 3, "leftarrow sets pos")
.end

.sub test_slash
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'SLASH'("a/b", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "slash detected")

    $I1 = parser.'pos'()
    is($I1, 2, "slash sets pos")
.end

.sub test_and
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'AND'("a&b", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "and detected")

    $I1 = parser.'pos'()
    is($I1, 2, "and sets pos")
.end

.sub test_not
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'NOT'("a!b", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "not detected")

    $I1 = parser.'pos'()
    is($I1, 2, "not sets pos")
.end

.sub test_question
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'QUESTION'("a?b", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "question detected")

    $I1 = parser.'pos'()
    is($I1, 2, "question sets pos")
.end

.sub test_star
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'STAR'("a*b", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "star detected")

    $I1 = parser.'pos'()
    is($I1, 2, "star sets pos")
.end

.sub test_plus
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'PLUS'("a+b", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "plus detected")

    $I1 = parser.'pos'()
    is($I1, 2, "plus sets pos")
.end

.sub test_open
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'OPEN'("a(b", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "open detected")

    $I1 = parser.'pos'()
    is($I1, 2, "open sets pos")
.end

.sub test_close
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'CLOSE'("a)b", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "close detected")

    $I1 = parser.'pos'()
    is($I1, 2, "close sets pos")
.end

.sub test_dot
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'DOT'("a.b", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "dot detected")

    $I1 = parser.'pos'()
    is($I1, 2, "dot sets pos")
.end

.sub test_endofline
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(20)
    $P0 = parser.'EndOfLine'("one line\nand another", 8)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "end of line detected")

    $I1 = parser.'pos'()
    is($I1, 9, "end of line sets pos")
.end

.sub test_spacing
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(3)
    $P0 = parser.'Spacing'("a b", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "spacing detected")
#    isa_ok($P0, 'Spix;Match', "spacing detected")

    $I1 = parser.'pos'()
    is($I1, 2, "spacing sets pos")
.end

.sub test_comment
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(18)
    $P0 = parser.'Comment'("abcd # efgh\nijklm", 5)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "comment detected")

    $I1 = parser.'pos'()
    is($I1, 12, "comment sets pos")

    parser.'pos'(0)
    parser.'length'(18)
    $P0 = parser.'Spacing'("abcd # efgh\nijklm", 4)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "comment in spacing detected")

    $I1 = parser.'pos'()
    is($I1, 12, "comment in spacing sets pos")
.end

.sub test_endoffile
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(5)
    $P0 = parser.'EndOfFile'('abcde', 5)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "end of file detected")

    $I1 = parser.'pos'()
    is($I1, 5, "end of file sets pos")

    parser.'pos'(0)
    $P0 = parser.'Identifier'("abcde\n", 0)
    $I0 = parser.'pos'()
    $P0 = parser.'EndOfFile'("abcde\n", $I0)

    $I1 = parser.'pos'()
    is($I1, 5, "end of file sets pos")
.end

.sub test_char
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(5)
    $P0 = parser.'Char'('abcde', 3)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "char detected")

    $I1 = parser.'pos'()
    is($I1, 4, "char sets pos")

    parser.'pos'(0)
    parser.'length'(4)
    $P0 = parser.'Char'("a\\nde", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "escape char detected")

    $I1 = parser.'pos'()
    is($I1, 3, "escape char sets pos")

    parser.'pos'(0)
    parser.'length'(7)
    $P0 = parser.'Char'("a\\277de", 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "long numbered escape char detected")

    $I1 = parser.'pos'()
    is($I1, 5, "long numbered escape char sets pos")

    parser.'pos'(0)
    parser.'length'(6)
    $P0 = parser.'Char'('a\77de', 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "short numbered escape char detected")

    $I1 = parser.'pos'()
    is($I1, 4, "short numbered escape char sets pos")

    parser.'pos'(0)
    parser.'length'(5)
    $P0 = parser.'Char'('a\7de', 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "shortest numbered escape char detected")

    $I1 = parser.'pos'()
    is($I1, 3, "shortest numbered escape char sets pos")
.end

.sub test_literal
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(5)
    $P0 = parser.'Literal'('"abc"', 0)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "double-quoted literal detected")

    $I1 = parser.'pos'()
    is($I1, 5, "literal sets pos")

    $P0 = parser.'Literal'("'abc'", 0)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "single-quoted literal detected")
.end

.sub test_range
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(5)
    $P0 = parser.'Range'('ab-de', 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "range detected")

    $I1 = parser.'pos'()
    is($I1, 4, "range sets pos")

    $P0 = parser.'Range'('abcde', 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "short range detected")

    $I1 = parser.'pos'()
    is($I1, 2, "short range sets pos")
.end

.sub test_class
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(5)
    $P0 = parser.'Class'('[b-d]', 0)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "class detected")

    $I1 = parser.'pos'()
    is($I1, 5, "class sets pos")

    parser.'pos'(0)
    parser.'length'(7)
    $P0 = parser.'Class'('[ab-de]', 0)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "class with multiple ranges detected")

    $I1 = parser.'pos'()
    is($I1, 7, "class with multiple ranges sets pos")
.end

.sub test_identifier
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(8)
    $P0 = parser.'Identifier'('abcd_efg', 0)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "identifier detected")

    $I1 = parser.'pos'()
    is($I1, 8, "identifier sets pos")

    parser.'pos'(0)
    parser.'length'(5)
    $P0 = parser.'IdentStart'('a0b5e', 0)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "identifier start detected")

    $I1 = parser.'pos'()
    is($I1, 1, "identifier start sets pos")

    $P0 = parser.'IdentCont'('a0b5e', 1)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "identifier cont detected")

    $I1 = parser.'pos'()
    is($I1, 2, "identifier cont sets pos")
.end

.sub test_definition
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(12)
    $P0 = parser.'Definition'("foo <- 'abc'", 0)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "definition detected")

    $I1 = parser.'pos'()
    is($I1, 12, "definition sets pos")
.end

.sub test_grammar
    .local pmc parser
    parser = new ['Spix';'PEG';'Parser']
    parser.'pos'(0)
    parser.'length'(13)
    $P0 = parser.'Grammar'("foo <- 'abc'\n", 0)
    $S0 = typeof $P0
    is($S0, 'Spix;Match', "grammar detected")

    $I1 = parser.'pos'()
    is($I1, 13, "grammar sets pos")
.end