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PHPLIB-1354 Add tests on String Expression Operators (#42)
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‎generator/config/expression/concat.yaml

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type:
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- resolvesToString
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variadic: array
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tests:
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-
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name: 'Example'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/concat/#examples'
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pipeline:
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-
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$project:
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itemDescription:
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$concat:
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- '$item'
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- ' - '
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- '$description'

‎generator/config/expression/indexOfBytes.yaml

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description: |
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An integer, or a number that can be represented as integers (such as 2.0), that specifies the ending index position for the search. Can be any valid expression that resolves to a non-negative integral number. If you specify a <end> index value, you should also specify a <start> index value; otherwise, $indexOfArray uses the <end> value as the <start> index value instead of the <end> value.
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If unspecified, the ending index position for the search is the end of the string.
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tests:
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-
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name: 'Example'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/indexOfBytes/#examples'
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pipeline:
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-
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$project:
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byteLocation:
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$indexOfBytes:
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- '$item'
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- 'foo'

‎generator/config/expression/indexOfCP.yaml

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description: |
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An integer, or a number that can be represented as integers (such as 2.0), that specifies the ending index position for the search. Can be any valid expression that resolves to a non-negative integral number. If you specify a <end> index value, you should also specify a <start> index value; otherwise, $indexOfArray uses the <end> value as the <start> index value instead of the <end> value.
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If unspecified, the ending index position for the search is the end of the string.
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tests:
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-
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name: 'Examples'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/indexOfCP/#examples'
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pipeline:
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-
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$project:
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cpLocation:
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$indexOfCP:
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- '$item'
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- 'foo'

‎generator/config/expression/ltrim.yaml

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The character(s) to trim from the beginning of the input.
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The argument can be any valid expression that resolves to a string. The $ltrim operator breaks down the string into individual UTF code point to trim from input.
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If unspecified, $ltrim removes whitespace characters, including the null character.
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tests:
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-
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name: 'Example'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/ltrim/#example'
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pipeline:
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-
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$project:
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item: 1
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description:
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$ltrim:
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input: '$description'

‎generator/config/expression/regexFind.yaml

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type:
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- string
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optional: true
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tests:
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-
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name: '$regexFind and Its Options'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexFind/#-regexfind-and-its-options'
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pipeline:
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-
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$addFields:
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returnObject:
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$regexFind:
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input: '$description'
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regex: !regex 'line'
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-
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name: 'i Option'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexFind/#i-option'
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pipeline:
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-
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$addFields:
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returnObject:
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# Specify i as part of the Regex type
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$regexFind:
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input: '$description'
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regex: !regex ['line', 'i']
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-
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$addFields:
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returnObject:
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# Specify i in the options field
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$regexFind:
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input: '$description'
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regex: 'line'
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options: 'i'
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-
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$addFields:
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returnObject:
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# Mix Regex type with options field
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$regexFind:
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input: '$description'
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regex: !regex 'line'
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options: 'i'

‎generator/config/expression/regexFindAll.yaml

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type:
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- string
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optional: true
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tests:
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-
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name: '$regexFindAll and Its Options'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexFindAll/#-regexfindall-and-its-options'
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pipeline:
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-
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$addFields:
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returnObject:
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$regexFindAll:
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input: '$description'
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regex: !regex 'line'
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-
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name: 'i Option'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexFindAll/#i-option'
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pipeline:
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-
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$addFields:
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returnObject:
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# Specify i as part of the regex type
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$regexFindAll:
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input: '$description'
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regex: !regex ['line', 'i']
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-
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$addFields:
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returnObject:
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# Specify i in the options field
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$regexFindAll:
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input: '$description'
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regex: 'line'
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options: 'i'
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-
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$addFields:
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returnObject:
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# Mix Regex type with options field
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$regexFindAll:
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input: '$description'
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regex: !regex 'line'
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options: 'i'
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-
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name: 'Use $regexFindAll to Parse Email from String'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexFindAll/#use--regexfindall-to-parse-email-from-string'
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pipeline:
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-
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$addFields:
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email:
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$regexFindAll:
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input: '$comment'
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regex: !regex ['[a-z0-9_.+-]+@[a-z0-9_.+-]+\.[a-z0-9_.+-]+', 'i']
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-
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$set:
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email: '$email.match'
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-
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name: 'Use Captured Groupings to Parse User Name'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexFindAll/#use-captured-groupings-to-parse-user-name'
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pipeline:
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-
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$addFields:
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names:
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$regexFindAll:
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input: '$comment'
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regex: !regex ['([a-z0-9_.+-]+)@[a-z0-9_.+-]+\.[a-z0-9_.+-]+', 'i']
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-
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$set:
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names:
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$reduce:
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input: '$names.captures'
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initialValue: []
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in:
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$concatArrays:
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- '$$value'
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- '$$this'

‎generator/config/expression/regexMatch.yaml

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type:
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- string
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optional: true
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tests:
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-
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name: '$regexMatch and Its Options'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexMatch/#-regexmatch-and-its-options'
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pipeline:
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-
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$addFields:
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result:
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$regexMatch:
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input: '$description'
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regex: !regex 'line'
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-
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name: 'i Option'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexMatch/#i-option'
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pipeline:
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-
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$addFields:
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result:
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# Specify i as part of the Regex type
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$regexMatch:
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input: '$description'
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regex: !regex ['line', 'i']
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-
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$addFields:
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result:
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# Specify i in the options field
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$regexMatch:
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input: '$description'
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regex: 'line'
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options: 'i'
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-
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$addFields:
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result:
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# Mix Regex type with options field
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$regexMatch:
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input: '$description'
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regex: !regex 'line'
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options: 'i'
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-
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name: 'Use $regexMatch to Check Email Address'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/regexMatch/#use--regexmatch-to-check-email-address'
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pipeline:
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-
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$addFields:
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category:
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$cond:
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if:
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$regexMatch:
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input: '$comment'
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regex: !regex ['[a-z0-9_.+-][email protected]', 'i']
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then: 'Employee'
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else: 'External'

‎generator/config/expression/replaceAll.yaml

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- resolvesToNull
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description: |
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The string to use to replace all matched instances of find in input. Can be any valid expression that resolves to a string or a null.
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tests:
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-
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name: 'Example'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceAll/#example'
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pipeline:
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-
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$project:
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item:
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$replaceAll:
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input: '$item'
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find: 'blue paint'
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replacement: 'red paint'

‎generator/config/expression/replaceOne.yaml

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- resolvesToNull
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description: |
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The string to use to replace all matched instances of find in input. Can be any valid expression that resolves to a string or a null.
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tests:
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-
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name: 'Example'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/replaceOne/#example'
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pipeline:
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-
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$project:
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item:
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$replaceOne:
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input: '$item'
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find: 'blue paint'
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replacement: 'red paint'

‎generator/config/expression/rtrim.yaml

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The character(s) to trim from the beginning of the input.
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The argument can be any valid expression that resolves to a string. The $ltrim operator breaks down the string into individual UTF code point to trim from input.
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If unspecified, $ltrim removes whitespace characters, including the null character.
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tests:
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-
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name: 'Example'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/rtrim/#example'
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pipeline:
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-
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$project:
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item: 1
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description:
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$rtrim:
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input: '$description'

‎generator/config/expression/split.yaml

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- resolvesToString
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description: |
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The delimiter to use when splitting the string expression. delimiter can be any valid expression as long as it resolves to a string.
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tests:
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-
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name: 'Example'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/split/#example'
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pipeline:
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-
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$project:
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city_state:
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$split:
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- '$city'
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- ', '
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qty: 1
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-
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$unwind:
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path: '$city_state'
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-
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$match:
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city_state: !regex '[A-Z]{2}'
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-
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$group:
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_id:
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state: '$city_state'
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total_qty:
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$sum: '$qty'
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-
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$sort:
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total_qty: -1

‎generator/config/expression/strLenBytes.yaml

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name: expression
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type:
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- resolvesToString
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tests:
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-
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name: 'Single-Byte and Multibyte Character Set'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/strLenBytes/#single-byte-and-multibyte-character-set'
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pipeline:
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-
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$project:
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name: 1
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length:
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$strLenBytes: '$name'

‎generator/config/expression/strLenCP.yaml

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name: expression
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type:
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- resolvesToString
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tests:
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-
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name: 'Single-Byte and Multibyte Character Set'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/strLenBytes/#single-byte-and-multibyte-character-set'
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pipeline:
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-
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$project:
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name: 1
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length:
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$strLenCP: '$name'

‎generator/config/expression/strcasecmp.yaml

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name: expression2
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type:
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- resolvesToString
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tests:
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-
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name: 'Example'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/strcasecmp/#example'
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pipeline:
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-
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$project:
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item: 1
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comparisonResult:
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$strcasecmp:
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- '$quarter'
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- '13q4'

‎generator/config/expression/substr.yaml

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- resolvesToInt
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description: |
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If length is a negative number, $substr returns a substring that starts at the specified index and includes the rest of the string.
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tests:
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-
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name: 'Example'
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link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/substr/#example'
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pipeline:
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-
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$project:
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item: 1
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yearSubstring:
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$substr:
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- '$quarter'
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- 0
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- 2
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quarterSubtring:
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$substr:
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- '$quarter'
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- 2
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- -1

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