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Merge pull request #24279 from otrazhenia/evgsudarikova-DOCSUP-9464
DOCSUP-9464: Edit and translate to Russian (regular expressions)
This commit is contained in:
Alexander Kuzmenkov
GitHub
commit
bc700d753a
@ -13,7 +13,7 @@ Returns an array of selected substrings. Empty substrings may be selected if the
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**Syntax**
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``` sql
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splitByChar(<separator>, <s>)
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splitByChar(separator, s)
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```
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**Arguments**
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@ -29,12 +29,12 @@ Returns an array of selected substrings. Empty substrings may be selected when:
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- There are multiple consecutive separators;
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- The original string `s` is empty.
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Type: [Array](../../sql-reference/data-types/array.md) of [String](../../sql-reference/data-types/string.md).
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Type: [Array](../../sql-reference/data-types/array.md)([String](../../sql-reference/data-types/string.md)).
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**Example**
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``` sql
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SELECT splitByChar(',', '1,2,3,abcde')
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SELECT splitByChar(',', '1,2,3,abcde');
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```
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``` text
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@ -50,7 +50,7 @@ Splits a string into substrings separated by a string. It uses a constant string
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**Syntax**
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``` sql
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splitByString(<separator>, <s>)
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splitByString(separator, s)
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```
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**Arguments**
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@ -62,7 +62,7 @@ splitByString(<separator>, <s>)
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Returns an array of selected substrings. Empty substrings may be selected when:
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Type: [Array](../../sql-reference/data-types/array.md) of [String](../../sql-reference/data-types/string.md).
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Type: [Array](../../sql-reference/data-types/array.md)([String](../../sql-reference/data-types/string.md)).
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- A non-empty separator occurs at the beginning or end of the string;
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- There are multiple consecutive non-empty separators;
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@ -71,7 +71,7 @@ Type: [Array](../../sql-reference/data-types/array.md) of [String](../../sql-ref
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**Example**
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``` sql
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SELECT splitByString(', ', '1, 2 3, 4,5, abcde')
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SELECT splitByString(', ', '1, 2 3, 4,5, abcde');
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```
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``` text
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@ -81,7 +81,7 @@ SELECT splitByString(', ', '1, 2 3, 4,5, abcde')
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```
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``` sql
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SELECT splitByString('', 'abcde')
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SELECT splitByString('', 'abcde');
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```
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``` text
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@ -92,12 +92,12 @@ SELECT splitByString('', 'abcde')
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## splitByRegexp(regexp, s) {#splitbyregexpseparator-s}
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Splits a string into substrings separated by a regular expression. It uses a regular expression string `regexp` as the separator. If the `regexp` is empty, it will split the string s into an array of single characters. If no match is found for this regex expression, the string `s` won't be split.
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Splits a string into substrings separated by a regular expression. It uses a regular expression string `regexp` as the separator. If the `regexp` is empty, it will split the string `s` into an array of single characters. If no match is found for this regular expression, the string `s` won't be split.
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**Syntax**
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``` sql
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splitByRegexp(<regexp>, <s>)
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splitByRegexp(regexp, s)
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```
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**Arguments**
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@ -109,28 +109,36 @@ splitByRegexp(<regexp>, <s>)
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Returns an array of selected substrings. Empty substrings may be selected when:
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- A non-empty regular expression match occurs at the beginning or end of the string;
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- There are multiple consecutive non-empty regular expression matches;
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- The original string `s` is empty while the regular expression is not empty.
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Type: [Array](../../sql-reference/data-types/array.md) of [String](../../sql-reference/data-types/string.md).
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Type: [Array](../../sql-reference/data-types/array.md)([String](../../sql-reference/data-types/string.md)).
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**Example**
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Query:
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``` sql
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SELECT splitByRegexp('\\d+', 'a12bc23de345f')
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SELECT splitByRegexp('\\d+', 'a12bc23de345f');
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```
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Result:
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``` text
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┌─splitByRegexp('\\d+', 'a12bc23de345f')─┐
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│ ['a','bc','de','f'] │
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└────────────────────────────────────────┘
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```
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Query:
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``` sql
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SELECT splitByRegexp('', 'abcde')
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SELECT splitByRegexp('', 'abcde');
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```
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Result:
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``` text
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┌─splitByRegexp('', 'abcde')─┐
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│ ['a','b','c','d','e'] │
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@ -149,7 +157,7 @@ Selects substrings of consecutive bytes from the ranges a-z and A-Z.Returns an a
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**Example**
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``` sql
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SELECT alphaTokens('abca1abc')
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SELECT alphaTokens('abca1abc');
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```
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``` text
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@ -14,7 +14,7 @@ separator должен быть константной строкой из ро
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**Синтаксис**
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``` sql
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splitByChar(<separator>, <s>)
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splitByChar(separator, s)
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```
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**Аргументы**
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@ -30,12 +30,12 @@ splitByChar(<separator>, <s>)
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- Задано несколько последовательных разделителей;
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- Исходная строка `s` пуста.
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Type: [Array](../../sql-reference/data-types/array.md) of [String](../../sql-reference/data-types/string.md).
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Тип: [Array](../../sql-reference/data-types/array.md)([String](../../sql-reference/data-types/string.md)).
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**Пример**
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``` sql
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SELECT splitByChar(',', '1,2,3,abcde')
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SELECT splitByChar(',', '1,2,3,abcde');
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```
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``` text
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@ -67,12 +67,12 @@ splitByString(separator, s)
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- Задано несколько последовательных разделителей;
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- Исходная строка `s` пуста.
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Тип: [Array](../../sql-reference/data-types/array.md) of [String](../../sql-reference/data-types/string.md).
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Тип: [Array](../../sql-reference/data-types/array.md)([String](../../sql-reference/data-types/string.md)).
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**Примеры**
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``` sql
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SELECT splitByString(', ', '1, 2 3, 4,5, abcde')
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SELECT splitByString(', ', '1, 2 3, 4,5, abcde');
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```
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``` text
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@ -82,7 +82,7 @@ SELECT splitByString(', ', '1, 2 3, 4,5, abcde')
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```
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``` sql
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SELECT splitByString('', 'abcde')
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SELECT splitByString('', 'abcde');
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```
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``` text
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@ -91,6 +91,60 @@ SELECT splitByString('', 'abcde')
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└────────────────────────────┘
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```
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## splitByRegexp(regexp, s) {#splitbyregexpseparator-s}
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Разбивает строку на подстроки, разделенные регулярным выражением. В качестве разделителя используется строка регулярного выражения `regexp`. Если `regexp` пустая, функция разделит строку `s` на массив одиночных символов. Если для регулярного выражения совпадения не найдено, строка `s` не будет разбита.
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**Синтаксис**
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``` sql
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splitByRegexp(regexp, s)
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```
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**Аргументы**
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- `regexp` — регулярное выражение. Константа. [String](../data-types/string.md) или [FixedString](../data-types/fixedstring.md).
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- `s` — разбиваемая строка. [String](../../sql-reference/data-types/string.md).
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**Возвращаемые значения**
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Возвращает массив выбранных подстрок. Пустая подстрока может быть возвращена, если:
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- Непустое совпадение с регулярным выражением происходит в начале или конце строки;
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- Имеется несколько последовательных совпадений c непустым регулярным выражением;
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- Исходная строка `s` пуста, а регулярное выражение не пустое.
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Тип: [Array](../../sql-reference/data-types/array.md)([String](../../sql-reference/data-types/string.md)).
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**Примеры**
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Запрос:
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``` sql
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SELECT splitByRegexp('\\d+', 'a12bc23de345f');
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```
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Результат:
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``` text
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┌─splitByRegexp('\\d+', 'a12bc23de345f')─┐
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│ ['a','bc','de','f'] │
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└────────────────────────────────────────┘
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```
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Запрос:
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``` sql
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SELECT splitByRegexp('', 'abcde');
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```
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Результат:
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``` text
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┌─splitByRegexp('', 'abcde')─┐
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│ ['a','b','c','d','e'] │
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└────────────────────────────┘
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```
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## arrayStringConcat(arr\[, separator\]) {#arraystringconcatarr-separator}
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@ -106,7 +160,7 @@ separator - необязательный параметр, константна
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**Пример:**
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``` sql
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SELECT alphaTokens('abca1abc')
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SELECT alphaTokens('abca1abc');
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```
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``` text
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@ -114,4 +168,3 @@ SELECT alphaTokens('abca1abc')
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│ ['abca','abc'] │
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└─────────────────────────┘
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```
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