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54 lines
1.6 KiB
Lua
54 lines
1.6 KiB
Lua
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local regex = require("@lune/regex")
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-- Tests taken from the Regex crate
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local function replace(
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name: string,
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pattern: string,
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find: string,
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replace: string,
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expected: string
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)
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local re = regex.new(pattern)
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local replaced = re:replace(find, replace)
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if replaced ~= expected then
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error(`test '{name}' did not return expected result (expected {expected} got {replaced})`)
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end
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end
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local function replaceAll(
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name: string,
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pattern: string,
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find: string,
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replace: string,
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expected: string
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)
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local re = regex.new(pattern)
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local replaced = re:replaceAll(find, replace)
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if replaced ~= expected then
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error(`test '{name}' did not return expected result (expected {expected} got {replaced})`)
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end
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end
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replace("first", "[0-9]", "age: 26", "Z", "age: Z6")
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replace("plus", "[0-9]+", "age: 26", "Z", "age: Z")
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replaceAll("all", "[0-9]", "age: 26", "Z", "age: ZZ")
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replace("groups", "([^ ]+)[ ]+([^ ]+)", "w1 w2", "$2 $1", "w2 w1")
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replace("double dollar", "([^ ]+)[ ]+([^ ]+)", "w1 w2", "$2 $$1", "w2 $1")
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replaceAll(
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"named",
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"(?P<first>[^ ]+)[ ]+(?P<last>[^ ]+)(?P<space>[ ]*)",
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"w1 w2 w3 w4",
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"$last $first$space",
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"w2 w1 w4 w3"
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)
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replaceAll("trim", "^[ \t]+|[ \t]+$", " \t trim me\t \t", "", "trim me")
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replace("number hypen", "(.)(.)", "ab", "$1-$2", "a-b")
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replaceAll("simple expand", "([a-z]) ([a-z])", "a b", "$2 $1", "b a")
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replaceAll("literal dollar 1", "([a-z]+) ([a-z]+)", "a b", "$$1", "$1")
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replaceAll("literal dollar 2", "([a-z]+) ([a-z]+)", "a b", "$2 $$c $1", "b $c a")
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replaceAll("match at start replace with empty", "foo", "foobar", "", "bar")
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replace("single empty match", "^", "bar", "foo", "foobar")
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