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36 lines
1.3 KiB
Nim
36 lines
1.3 KiB
Nim
import unittest
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include nre
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suite "captures":
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test "map capture names to numbers":
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check(getNameToNumberTable(initRegex("(?<v1>1(?<v2>2(?<v3>3))(?'v4'4))()")) ==
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{ "v1" : 0, "v2" : 1, "v3" : 2, "v4" : 3 }.toTable())
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test "capture bounds are correct":
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let ex1 = initRegex("([0-9])")
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check(ex1.exec("1 23").get.matchBounds == 0 .. 1)
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check(ex1.exec("1 23").get.captureBounds[0].get == 0 .. 1)
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check(ex1.exec("1 23", 1).get.matchBounds == 2 .. 3)
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check(ex1.exec("1 23", 3).get.matchBounds == 3 .. 4)
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let ex2 = initRegex("()()()()()()()()()()([0-9])")
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check(ex2.exec("824").get.captureBounds[0].get == 0 .. 0)
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check(ex2.exec("824").get.captureBounds[10].get == 0 .. 1)
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let ex3 = initRegex("([0-9]+)")
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check(ex3.exec("824").get.captureBounds[0].get == 0 .. 3)
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test "named captures":
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let ex1 = initRegex("(?<foo>foo)(?<bar>bar)").exec("foobar").get
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check(ex1.captures["foo"] == "foo")
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check(ex1.captures["bar"] == "bar")
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let ex2 = initRegex("(?<foo>foo)(?<bar>bar)?").exec("foo").get
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check(ex2.captures["foo"] == "foo")
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check(ex2.captures["bar"] == nil)
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test "named capture bounds":
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let ex1 = initRegex("(?<foo>foo)(?<bar>bar)?").exec("foo").get
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check(ex1.captureBounds["foo"] == Some(0..3))
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check(ex1.captureBounds["bar"] == None[Slice[int]]())
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