rsre-lua 0.1.0

local rsre = require("rsre")

describe("api", function()
    describe("regex#api", function()
        it("new#regex", function()
            assert.Not.Error(function()
                rsre.Regex.new("123")
            end)
        end)

        it("match#regex", function()
            local re = rsre.Regex.new([[\d{3}]])
            local m = re:match("123")

            assert.True(m)
        end)

        it("find#regex", function()
            local re = rsre.Regex.new([[\d{3}]])
            local m = re:find("abc123def")

            assert.Equal(4, m:start())
            assert.Equal(7, m:stop())
            assert.Equal("123", m:as_str())
        end)

        it("find_from_pos#regex", function()
            local re = rsre.Regex.new([[\d{3}]])
            local m = re:find("abc123456def", 6)

            assert.Equal(6, m:start())
            assert.Equal(9, m:stop())
            assert.Equal("345", m:as_str())
        end)

        describe("captures#regex", function()
            it("indices#captures", function()
                local re = rsre.Regex.new([[(\d{3})(\d{3})]])
                local c = re:captures("abc123456def")

                assert.Equal(3, c:len())

                assert.Equal(4, c:get(1):start())
                assert.Equal(10, c:get(1):stop())
                assert.Equal("123456", c:get(1):as_str())

                assert.Equal(4, c:get(2):start())
                assert.Equal(7, c:get(2):stop())
                assert.Equal("123", c:get(2):as_str())

                assert.Equal(7, c:get(3):start())
                assert.Equal(10, c:get(3):stop())
                assert.Equal("456", c:get(3):as_str())
            end)

            it("names#captures", function()
                local re = rsre.Regex.new([[(?<one>\d{3})(?<two>\d{3})]])
                local c = re:captures("abc123456def")

                assert.Equal(3, c:len())

                assert.Equal(4, c:get(1):start())
                assert.Equal(10, c:get(1):stop())
                assert.Equal("123456", c:get(1):as_str())

                assert.Equal(4, c:get(2):start())
                assert.Equal(7, c:get(2):stop())
                assert.Equal("123", c:get(2):as_str())

                assert.Equal(4, c:name("one"):start())
                assert.Equal(7, c:name("one"):stop())
                assert.Equal("123", c:name("one"):as_str())

                assert.Equal(7, c:get(3):start())
                assert.Equal(10, c:get(3):stop())
                assert.Equal("456", c:get(3):as_str())

                assert.Equal(7, c:name("two"):start())
                assert.Equal(10, c:name("two"):stop())
                assert.Equal("456", c:name("two"):as_str())
            end)
        end)

        describe("captures_from_pos#regex", function()
            it("indices#captures_from_pos", function()
                local re = rsre.Regex.new([[(\d{3})(\d{3})]])
                local c = re:captures("abc12345678def", 5)

                assert.Equal(3, c:len())

                assert.Equal(5, c:get(1):start())
                assert.Equal(11, c:get(1):stop())
                assert.Equal("234567", c:get(1):as_str())

                assert.Equal(5, c:get(2):start())
                assert.Equal(8, c:get(2):stop())
                assert.Equal("234", c:get(2):as_str())

                assert.Equal(8, c:get(3):start())
                assert.Equal(11, c:get(3):stop())
                assert.Equal("567", c:get(3):as_str())
            end)

            it("names#captures_from_pos", function()
                local re = rsre.Regex.new([[(?<one>\d{3})(?<two>\d{3})]])
                local c = re:captures("abc12345678def", 5)

                assert.Equal(3, c:len())

                assert.Equal(5, c:get(1):start())
                assert.Equal(11, c:get(1):stop())
                assert.Equal("234567", c:get(1):as_str())

                assert.Equal(5, c:get(2):start())
                assert.Equal(8, c:get(2):stop())
                assert.Equal("234", c:get(2):as_str())

                assert.Equal(5, c:name("one"):start())
                assert.Equal(8, c:name("one"):stop())
                assert.Equal("234", c:name("one"):as_str())

                assert.Equal(8, c:get(3):start())
                assert.Equal(11, c:get(3):stop())
                assert.Equal("567", c:get(3):as_str())

                assert.Equal(8, c:name("two"):start())
                assert.Equal(11, c:name("two"):stop())
                assert.Equal("567", c:name("two"):as_str())
            end)
        end)

        it("replace#regex", function()
            local re = rsre.Regex.new("foo")
            local rep = "bar"

            local te = "foofoobarbarfoobarbaz"
            local ex = "barfoobarbarfoobarbaz"

            assert.Equal(ex, re:replace(te, rep, 1))
        end)

        it("replace_all#regex", function()
            local re = rsre.Regex.new("foo")
            local rep = "bar"

            local te = "foofoobarbarfoobarbaz"
            local ex = "barbarbarbarbarbarbaz"

            assert.Equal(ex, re:replace(te, rep))
        end)

        it("replacen#regex", function()
            local re = rsre.Regex.new("foo")
            local rep = "bar"

            local te = "foofoobarbarfoobarbaz"
            local ex = "barbarbarbarfoobarbaz"

            assert.Equal(ex, re:replace(te, rep, 2))
        end)

        it("split#regex", function()
            local re = rsre.Regex.new("X")
            local te = "fooXbarX baz XbuzzX"
            local ex = { "foo", "bar", " baz ", "buzz", "" }

            assert.Same(ex, re:split(te))
        end)

        it("splitn#regex", function()
            local re = rsre.Regex.new("X")
            local te = "fooXbarX baz XbuzzX"
            local ex = { "foo", "bar", " baz XbuzzX" }

            assert.Same(ex, re:split(te, 3))
        end)
    end)
end)