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Added capture regex operator

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This commit is contained in:
Mike Farah
2021-07-11 11:08:18 +10:00
parent 3394feee0d
commit 5c0a5bd9d3
5 changed files with 175 additions and 46 deletions
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pkg/yqlib/operator_strings_test.go
+32 -12
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@@ -15,34 +15,54 @@ var stringsOperatorScenarios = []expressionScenario{
},
{
description: "Match string",
document: `cat`,
expression: `match("at")`,
document: `foo bar foo`,
expression: `match("foo")`,
expected: []string{
"D0, P[], ()::string: at\noffset: 1\nlength: 2\ncaptures: []\n",
"D0, P[], ()::string: foo\noffset: 0\nlength: 3\ncaptures: []\n",
},
},
{
description: "Match string, case insensitive",
document: `cAt`,
expression: `match("(?i)at")`,
document: `foo bar FOO`,
expression: `match("(?i)foo"; "g")`,
expected: []string{
"D0, P[], ()::string: At\noffset: 1\nlength: 2\ncaptures: []\n",
"D0, P[], ()::string: foo\noffset: 0\nlength: 3\ncaptures: []\n",
"D0, P[], ()::string: FOO\noffset: 8\nlength: 3\ncaptures: []\n",
},
},
{
description: "Match with capture groups",
document: `a cat`,
expression: `match("c(.t)")`,
document: `abc abc`,
expression: `match("(abc)+"; "g")`,
expected: []string{
"D0, P[], ()::string: cat\noffset: 2\nlength: 3\ncaptures:\n - string: at\n offset: 3\n length: 2\n",
"D0, P[], ()::string: abc\noffset: 0\nlength: 3\ncaptures:\n - string: abc\n offset: 0\n length: 3\n",
"D0, P[], ()::string: abc\noffset: 4\nlength: 3\ncaptures:\n - string: abc\n offset: 4\n length: 3\n",
},
},
{
description: "Match with named capture groups",
document: `a cat`,
expression: `match("c(?P<cool>.t)")`,
document: `foo bar foo foo foo`,
expression: `match("foo (?P<bar123>bar)? foo"; "g")`,
expected: []string{
"D0, P[], ()::string: cat\noffset: 2\nlength: 3\ncaptures:\n - string: at\n offset: 3\n length: 2\n name: cool\n",
"D0, P[], ()::string: foo bar foo\noffset: 0\nlength: 11\ncaptures:\n - string: bar\n offset: 4\n length: 3\n name: bar123\n",
"D0, P[], ()::string: foo foo\noffset: 12\nlength: 8\ncaptures:\n - string: null\n offset: -1\n length: 0\n name: bar123\n",
},
},
{
description: "Capture named groups into a map",
document: `xyzzy-14`,
expression: `capture("(?P<a>[a-z]+)-(?P<n>[0-9]+)")`,
expected: []string{
"D0, P[], ()::a: xyzzy\nn: \"14\"\n",
},
},
{
skipDoc: true,
description: "Capture named groups into a map, with null",
document: `xyzzy-14`,
expression: `capture("(?P<a>[a-z]+)-(?P<n>[0-9]+)(?P<bar123>bar)?")`,
expected: []string{
"D0, P[], ()::a: xyzzy\nn: \"14\"\nbar123: null\n",
},
},
{