2015-06-18 19:38:25 -07:00
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# match builtin
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[match("( )*"; "g")]
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"abc"
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[{"offset":0, "length":0, "string":"", "captures":[]},{"offset":1, "length":0, "string":"", "captures":[]},{"offset":2, "length":0, "string":"", "captures":[]}]
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[match("( )*"; "gn")]
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"abc"
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[]
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[match("a"; "gi")]
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"āáàä"
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[]
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[match(["(bar)"])]
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"foo bar"
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[{"offset": 4, "length": 3, "string": "bar", "captures":[{"offset": 4, "length": 3, "string": "bar", "name": null}]}]
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# offsets account for combining codepoints and multi-byte UTF-8
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[match("bar")]
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"ā bar with a combining codepoint U+0304"
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[{"offset": 3, "length": 3, "string": "bar", "captures":[]}]
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# matches with combining codepoints still count them in their length
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[match("bār")]
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"a bār"
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[{"offset": 2, "length": 4, "string": "bār", "captures":[]}]
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[match(".+?\\b")]
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"ā two-codepoint grapheme"
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[{"offset": 0, "length": 2, "string": "ā", "captures":[]}]
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[match(["foo (?<bar123>bar)? foo", "ig"])]
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"foo bar foo foo foo"
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[{"offset": 0, "length": 11, "string": "foo bar foo", "captures":[{"offset": 4, "length": 3, "string": "bar", "name": "bar123"}]},{"offset":12, "length": 8, "string": "foo foo", "captures":[{"offset": -1, "length": 0, "string": null, "name": "bar123"}]}]
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#test builtin
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[test("( )*"; "gn")]
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"abc"
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[false]
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[test("ā")]
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"ā"
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[true]
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capture("(?<a>[a-z]+)-(?<n>[0-9]+)")
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"xyzzy-14"
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{"a":"xyzzy","n":"14"}
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# jq-coded utilities built on match:
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#
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# The second element in these tests' inputs tests the case where the
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# fromstring matches both the head and tail of the string
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[.[] | sub(", "; ":")]
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["a,b, c, d, e,f", ", a,b, c, d, e,f, "]
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["a,b:c, d, e,f",":a,b, c, d, e,f, "]
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sub("^(?<head>.)"; "Head=\(.head) Tail=")
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"abcdef"
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"Head=a Tail=bcdef"
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[.[] | gsub(", "; ":")]
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["a,b, c, d, e,f",", a,b, c, d, e,f, "]
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["a,b:c:d:e,f",":a,b:c:d:e,f:"]
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gsub("(?<d>\\d)"; ":\(.d);")
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"a1b2"
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"a:1;b:2;"
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[.[] | scan(", ")]
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["a,b, c, d, e,f",", a,b, c, d, e,f, "]
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[", ",", ",", ",", ",", ",", ",", ",", "]
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[.[]|[[sub(", *";":")], [gsub(", *";":")], [scan(", *")]]]
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["a,b, c, d, e,f",", a,b, c, d, e,f, "]
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[[["a:b, c, d, e,f"],["a:b:c:d:e:f"],[",",", ",", ",", ",","]],[[":a,b, c, d, e,f, "],[":a:b:c:d:e:f:"],[", ",",",", ",", ",", ",",",", "]]]
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[.[]|[[sub(", +";":")], [gsub(", +";":")], [scan(", +")]]]
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["a,b, c, d, e,f",", a,b, c, d, e,f, "]
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[[["a,b:c, d, e,f"],["a,b:c:d:e,f"],[", ",", ",", "]],[[":a,b, c, d, e,f, "],[":a,b:c:d:e,f:"],[", ",", ",", ",", ",", "]]]
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# reference to named captures
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gsub("(?<x>.)[^a]*"; "+\(.x)-")
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"Abcabc"
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"+A-+a-"
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2015-08-22 12:18:13 -07:00
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# utf-8
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sub("(?<x>.)"; "\(.x)!")
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"’"
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"’!"
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