mirror of https://github.com/Wilfred/difftastic/
16 lines
504 B
Plaintext
16 lines
504 B
Plaintext
use bytes;
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use encoding::utf8;
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// Returns true if a string contains a rune or a sub-string.
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export fn contains(haystack: str, needle: (str | rune)) bool = match (needle) {
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s: str => bytes::contains(toutf8(haystack), toutf8(s)),
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r: rune => bytes::contains(toutf8(haystack), utf8::encoderune(r)),
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};
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@test fn contains() void = {
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assert(contains("hello world", "hello"));
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assert(contains("hello world", "world"));
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assert(contains("hello world", ""));
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assert(!contains("hello world", "foobar"));
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};
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