String
Functions for ASCII strings:
List of functions
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String::Base64Encode(String{Flags:AutoMap}) -> String
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String::Base64Decode(String) -> String?
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String::Base64StrictDecode(String) -> String?
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String::EscapeC(String{Flags:AutoMap}) -> String
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String::UnescapeC(String{Flags:AutoMap}) -> String
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String::HexEncode(String{Flags:AutoMap}) -> String
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String::HexDecode(String) -> String?
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String::EncodeHtml(String{Flags:AutoMap}) -> String
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String::DecodeHtml(String{Flags:AutoMap}) -> String
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String::CgiEscape(String{Flags:AutoMap}) -> String
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String::CgiUnescape(String{Flags:AutoMap}) -> String
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String::Strip(String{Flags:AutoMap}) -> String
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String::Collapse(String{Flags:AutoMap}) -> String
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String::CollapseText(String{Flags:AutoMap}, Uint64) -> String
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String::Contains(String?, String) -> Bool
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String::Find(String{Flags:AutoMap}, String, [Uint64?]) -> Int64
: Returns the first position found or -1. The optional argument is the offset from the beginning of the string. -
String::ReverseFind(String{Flags:AutoMap}, String, [Uint64?]) -> Int64
: Returns the last position found or -1. The optional argument is the offset from the beginning of the string. -
String::HasPrefix(String?, String) -> Bool
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String::HasPrefixIgnoreCase(String?, String) -> Bool
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String::StartsWith(String?, String) -> Bool
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String::StartsWithIgnoreCase(String?, String) -> Bool
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String::HasSuffix(String?, String) -> Bool
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String::HasSuffixIgnoreCase(String?, String) -> Bool
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String::EndsWith(String?, String) -> Bool
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String::EndsWithIgnoreCase(String?, String) -> Bool
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String::Substring(String{Flags:AutoMap}, [Uint64?, Uint64?]) -> String
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String::AsciiToLower(String{Flags:AutoMap}) -> String
: Changes only Latin characters. For working with other alphabets, see Unicode::ToLower -
String::AsciiToUpper(String{Flags:AutoMap}) -> String
: Changes only Latin characters. For working with other alphabets, see Unicode::ToUpper -
String::AsciiToTitle(String{Flags:AutoMap}) -> String
: Changes only Latin characters. For working with other alphabets, see Unicode::ToTitle -
String::SplitToList( String?, String, [ DelimeterString:Bool?, SkipEmpty:Bool?, Limit:Uint64? ]) -> List<String>
The first argument is the source string
The second argument is a delimiter
The third argument includes the following parameters:- DelimeterString:Bool? — treating a delimiter as a string (true, by default) or a set of characters "any of" (false)
- SkipEmpty:Bool? — whether to skip empty strings in the result, is false by default
- Limit:Uint64? — Limits the number of fetched components (unlimited by default); if the limit is exceeded, the raw suffix of the source string is returned in the last item
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String::JoinFromList(List<String>{Flags:AutoMap}, String) -> String
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String::ToByteList(List<String>{Flags:AutoMap}) -> List<Byte>
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String::FromByteList(List<Uint8>) -> String
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String::ReplaceAll(String{Flags:AutoMap}, String, String) -> String
: Arguments: input, find, replacement -
String::ReplaceFirst(String{Flags:AutoMap}, String, String) -> String
: Arguments: input, find, replacement -
String::ReplaceLast(String{Flags:AutoMap}, String, String) -> String
: Arguments: input, find, replacement -
String::RemoveAll(String{Flags:AutoMap}, String) -> String
: The second argument is interpreted as an unordered set of characters to delete -
String::RemoveFirst(String{Flags:AutoMap}, String) -> String
: An unordered set of characters in the second argument, only the first encountered character from set is deleted -
String::RemoveLast(String{Flags:AutoMap}, String) -> String
: An unordered set of characters in the second argument, only the last encountered character from the set is deleted -
String::IsAscii(String{Flags:AutoMap}) -> Bool
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String::IsAsciiSpace(String{Flags:AutoMap}) -> Bool
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String::IsAsciiUpper(String{Flags:AutoMap}) -> Bool
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String::IsAsciiLower(String{Flags:AutoMap}) -> Bool
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String::IsAsciiAlpha(String{Flags:AutoMap}) -> Bool
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String::IsAsciiAlnum(String{Flags:AutoMap}) -> Bool
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String::IsAsciiHex(String{Flags:AutoMap}) -> Bool
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String::LevensteinDistance(String{Flags:AutoMap}, String{Flags:AutoMap}) -> Uint64
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String::LeftPad(String{Flags:AutoMap}, Uint64, [String?]) -> String
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String::RightPad(String{Flags:AutoMap}, Uint64) -> String
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String::Hex(Uint64{Flags:AutoMap}) -> String
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String::SHex(Int64{Flags:AutoMap}) -> String
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String::Bin(Uint64{Flags:AutoMap}) -> String
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String::SBin(Int64{Flags:AutoMap}) -> String
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String::HexText(String{Flags:AutoMap}) -> String
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String::BinText(String{Flags:AutoMap}) -> String
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String::HumanReadableDuration(Uint64{Flags:AutoMap}) -> String
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String::HumanReadableQuantity(Uint64{Flags:AutoMap}) -> String
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String::HumanReadableBytes(Uint64{Flags:AutoMap}) -> String
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String::Prec(Double{Flags:AutoMap}, Uint64) -> String
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String::Reverse(String?) -> String?
Alert
The functions from the String library don't support Cyrillic and can only work with ASCII characters. To work with UTF-8 encoded strings, use functions from Unicode.
Examples
SELECT String::Base64Encode("YQL"); -- "WVFM"
SELECT String::Strip("YQL "); -- "YQL"
SELECT String::SplitToList("1,2,3,4,5,6,7", ",", 3 as Limit); -- ["1", "2", "3", "4,5,6,7"]