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strings.test.scad
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strings.test.scad
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include <strings.scad>
test = "foo (1, bar2)";
regex_test = "foooobazfoobarbaz";
echo([ "after:",
after("foo", -1) == "foo",
after("foo", 0) == "oo",
after("foo", 1) == "o",
after("foo", 2) == "",
after("foo", 3) == "",
after("foo", undef) == undef,
]);
echo([ "before:",
before("foo", -1) == "",
before("foo", 0) == "",
before("foo", 1) == "f",
before("foo", 2) == "fo",
before("foo", 3) == "foo",
before("foo", undef) == undef
]);
echo([ "between:",
between("bar", undef, undef) == undef,
between("bar", undef, 1) == undef,
between("bar", 1, undef) == undef,
between("bar", -1, 1) == "b",
between("bar", 1, 2) == "a",
between("bar", 1, 3) == "ar",
between("bar", 0, 2) == "ba",
between("bar", 1, 1) == "",
between("bar", -1, -1) == "",
between("bar", 3, 3) == "",
between("bar", 4, 4) == undef,
between("foobar", 2, 4)=="ob",
between("foobar", 4, 2) == undef,
]);
echo([ "substring:",
substring("foobar", 2, 2) == "ob",
substring("foobar", 2, undef) == "obar",
]);
echo([ "join:",
join(["foo", "bar", "baz"], ", ") == "foo, bar, baz",
join(["foo", "bar", "baz"], "") == "foobarbaz",
join(["foo"], ",") == "foo",
join([], "") == "",
]);
echo(["is_in:",
is_in("r", "foobar"),
!is_in("x", "foobar")
]);
*echo(["lower:", lower("!@#$1234FOOBAR!@#$1234") == "!@#$1234foobar!@#$1234"]);
*echo(["upper:", upper("!@#$1234foobar!@#$1234") == "!@#$1234FOOBAR!@#$1234"]);
echo(["equals:",
equals("foo", "bar") == false,
equals("foo", "foo") == true,
equals("foo", "FOo") == false,
equals("foo", "FOo", ignore_case=true) == true,
]);
echo([ "starts_with:",
starts_with("foobar", "foo"),
starts_with("foobar", "oo", 1)]);
echo(["ends_with:", ends_with("foobar", "bar")]);
*echo([ "tokenize:",
tokenize(" ") == [],
tokenize(test)[0] == "foo",
tokenize(test)[1] == "(",
tokenize(test)[2] == "1",
tokenize(test)[3] == ",",
tokenize(test)[4] == "bar2",
tokenize(test)[5] == ")",
tokenize(test)[6] == undef,
tokenize(" ", ignore_space=false) == [" "],
tokenize(test, ignore_space=false)[0] == "foo",
tokenize(test, ignore_space=false)[1] == " ",
tokenize(test, ignore_space=false)[2] == "(",
tokenize(test, ignore_space=false)[3] == "1",
tokenize(test, ignore_space=false)[4] == ",",
tokenize(test, ignore_space=false)[5] == " ",
tokenize(test, ignore_space=false)[6] == "bar2",
tokenize(test, ignore_space=false)[7] == ")",
tokenize(test, ignore_space=false)[8] == undef,
]);
echo([ "trim:",
trim(" foo ") == "foo",
trim(" foo") == "foo",
trim("foo ") == "foo",
trim("foo") == "foo",
trim("") == "",
trim(" ") == "",
trim(" ") == "",
trim(undef) == undef,
]);
echo([
"reverse:",
reverse("bar") == "rab",
reverse("ba") == "ab",
reverse("") == "",
reverse(undef) == undef,
]);
echo([
"_parse_rx:",
"atomic operations",
_parse_rx("a?") == ["zero_to_one", ["literal", "a"]],
_parse_rx("a*") == ["zero_to_many", ["literal", "a"]],
_parse_rx("a+") == ["one_to_many", ["literal", "a"]],
_parse_rx("foo")
== ["sequence", ["literal", "f"],
["literal", "o"],
["literal", "o"]
],
_parse_rx("a|b")
== ["choice", ["literal", "a"],
["literal", "b"]
],
"variable repetition",
_parse_rx(".{3}") == ["many_to_many", ["wildcard"], "3"],
_parse_rx(".{3,5}") == ["many_to_many", ["wildcard"], "35"],
"charsets",
_parse_rx(".[abcdef]")
== ["sequence", ["wildcard"],
["positive_character_set",
["character_literal", "a"],
["character_literal", "b"],
["character_literal", "c"],
["character_literal", "d"],
["character_literal", "e"],
["character_literal", "f"]
]
],
_parse_rx("[a-z]") == ["positive_character_set", ["character_range", "az"]],
_parse_rx(".[^abcdef]")
== ["sequence", ["wildcard"],
["negative_character_set",
["character_literal", "a"],
["character_literal", "b"],
["character_literal", "c"],
["character_literal", "d"],
["character_literal", "e"],
["character_literal", "f"]
]
],
_parse_rx("^[a-z]")
== ["sequence", ["start"],
["positive_character_set", ["character_range", "az"]]
],
"escape characters",
_parse_rx("\\d") == ["character_set_shorthand", "d"],
_parse_rx("\\d\\d")
== ["sequence",
["character_set_shorthand", "d"],
["character_set_shorthand", "d"]
],
_parse_rx("\\d?") == ["zero_to_one", ["character_set_shorthand", "d"]],
_parse_rx("\\s\\d?")
== ["sequence",
["character_set_shorthand", "s"],
["zero_to_one", ["character_set_shorthand", "d"]]
],
_parse_rx("\\d?|b*\\d+")
== ["choice",
["zero_to_one", ["character_set_shorthand", "d"]],
["sequence",
["zero_to_many", ["literal", "b"]],
["one_to_many", ["character_set_shorthand", "d"]]
]
],
_parse_rx("a|\\(bc\\)")
== ["choice",
["literal", "a"],
["sequence", ["character_set_shorthand", "("],
["literal", "b"],
["literal", "c"],
["character_set_shorthand", ")"]
]
],
"order of operations",
_parse_rx("ab?")
== ["sequence",
["literal", "a"],
["zero_to_one", ["literal", "b"]]
],
_parse_rx("(ab)?")
== ["zero_to_one",
["sequence",
["literal", "a"],
["literal", "b"]
]
],
_parse_rx("a|b?")
== ["choice",
["literal", "a"],
["zero_to_one", ["literal", "b"]]
],
_parse_rx("(a|b)?")
== ["zero_to_one",
["choice",
["literal", "a"],
["literal", "b"]
]
],
_parse_rx("a|bc")
== ["choice",
["literal", "a"],
["sequence",
["literal", "b"],
["literal", "c"]
]
],
_parse_rx("ab|c")
== ["choice",
["sequence",
["literal", "a"],
["literal", "b"]
],
["literal", "c"]
],
_parse_rx("(a|b)c")
== ["sequence",
["choice",
["literal", "a"],
["literal", "b"]
],
["literal", "c"]
],
_parse_rx("a|(bc)")
== ["choice",
["literal", "a"],
["sequence",
["literal", "b"],
["literal", "c"]
]
],
_parse_rx("a?|b*c+")
== ["choice",
["zero_to_one", ["literal", "a"]],
["sequence",
["zero_to_many", ["literal", "b"]],
["one_to_many", ["literal", "c"]]
]
],
_parse_rx("a?|b*c+d|d*e+")
== ["choice",
["zero_to_one", ["literal", "a"]],
["sequence",
["zero_to_many", ["literal", "b"]],
["one_to_many", ["literal", "c"]],
["literal", "d"]
],
["sequence",
["zero_to_many", ["literal", "d"]],
["one_to_many", ["literal", "e"]]
]
],
"edge cases",
_parse_rx("a") == ["literal", "a"],
_parse_rx("") ,
_parse_rx(undef) == undef,
"invalid syntax",
// _parse_rx("((()))"),
// _parse_rx( "(()))"),
// _parse_rx("((())"),
//_parse_rx("a?*+"),
]);
echo([
"_match_regex",
_match_regex("foobarbaz", "[foba]{2,5}") == 5,
_match_regex("foobarbaz", "[foba]{6,9}") == undef,
_match_regex("foobarbaz", "[fobar]{2,6}") == 6,
_match_regex("foobarbaz", "[fobar]{2,9}") == 8,
_match_regex("foobarbaz", "[a-z]*") == 9,
_match_regex("foobarbaz", "[f-o]*") == 3,
_match_regex("012345", "[^a-z]*") == 6,
_match_regex("foobarbaz", "[^a-z]*"),// == undef,
_match_regex("foobarbaz", "[^f-o]*"),
]);
echo([
"contains:",
contains("foo bar baz", "ba[rz]", regex=true) == true,
contains("foo bar baz", "spam", regex=true) == false,
contains("foo bar baz", "BA[RZ]", regex=true, ignore_case=true) == true,
contains("foo bar baz", "SPAM", regex=true, ignore_case=true) == false,
]);
echo([
"index_of:",
index_of("foobar", "o") == [[1,2], [2,3]],
index_of("foobar foobar", "oo") == [[1,3], [8,10]],
index_of("foobar", "Bar") == [],
index_of("foobar", "Bar", ignore_case=true) == [[3,6]],
index_of("foo bar baz", "ba[rz]", regex=true) == [[4,7], [8,11]],
index_of("foo bar baz", "BA[RZ]", regex=true, ignore_case=true) == [[4,7], [8,11]],
index_of("", "x") == []
]);
echo([
"grep:",
grep("foo bar baz", "ba[rz]") == ["bar", "baz"],
grep("foo bar baz", "BA[RZ]") == [],
grep("foo 867-5309 baz", "\\d\\d\\d-?\\d\\d\\d\\d") == ["867-5309"],
grep("foo bar baz", "BA[RZ]", ignore_case=true) == ["bar", "baz"],
]);
echo([
"replace:",
replace("foobar", "oo", "ee") == "feebar",
replace("foobar foobar", "oo", "ee") == "feebar feebar",
replace("foobar", "OO", "ee", ignore_case=true) == "feebar",
replace("foobar foobar", "OO", "ee", ignore_case=true) == "feebar feebar",
replace("foo bar baz", "ba[rz]", "boo", regex=true) == "foo boo boo",
replace("foo bar baz", "BA[RZ]", "spam", regex=true, ignore_case=true) == "foo spam spam",
]);
echo([
"split:",
split("", " "),
split(test, " "),
split(test, " "),
split("foo", " "),
split(regex_test, "fo+", regex=true),
split("bazfoobar", "fo+", regex=true),
split("", "fo+", regex=true) ,
split("", "fo+", regex=true) ,
split(regex_test, "FO+", regex=true, ignore_case=true) == ["baz", "barbaz"],
]);