# String Functions | **Function** | **Description** | | ------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------- | | [Ascii](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/ascii) | Returns the corresponding ASCII code of the specified char. | | [Base64 Dencode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/base64-decode) | Decodes a base64 string. | | [Base64 Encode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/base64-encode) | Encodes a string to base64. | | [Charact](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/charact) | Returns the corresponding Char of the specified ASCII code. | | [Complete](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/complete) | To complete a string with the specified chars until it reaches the specified length. | | [Decode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/decode) | Converts all the occurrences of "\" in a string into the corresponding Char. | | [Encode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/encode) | Converts the non printable chars in a string into the corresponding ASCII code in the "\" format. | | [Extract String](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/extract-string) | Extracts a string from the specified string, according to a rank and separator. | | [FileExtractPart](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/fileextractpart) | Extracts a part of the name of a file from a full file path. | | [Find](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/find) | Returns the position of the provided string inside a string. | | [FullEncode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/fullencode) | Converts all the chars in a string into the corresponding ASCII code in the "\" format. | | [Get GUID](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/get-guid) | Returns a Global Unique Identifier. | | [JSONDecode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/jsondecode) | This Function decodes a specified JSON encoded string. | | [JSONEncode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/jsonencode) | This Function encodes a specified string into a JSON encoded string. | | [Left](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/left) | Returns the left part of a string, according to the specified length. | | [Length](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/length) | Returns the size, in chars, of a string. | | [Lower-case](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/lower-case) | Converts all the chars in a string to their lower case form. | | [Middle](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/middle) | Returns a part of a string, starting at a given position with the specified length. | | [MLText](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/mltext) | Returns a string defined by the user, corresponding to the current language of the application in runtime. | | [Replace](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/replace) | Replaces all the occurrences of a char by the specified one, on a string. | | [Right](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/right) | Returns the right part of a string, according to the specified length. | | [Set String](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/set-string) | Returns a string with Value replacing a Source String according to a Rank and a Separator. | | [String Count](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/string-count) | Returns the occurrence of the specified string in a string. | | [Trim](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/trim) | Removes white spaces at left and/or right of a string. | | [Upper-Case](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/upper-case) | Converts all the chars in a string to their upper case form. | | [URLDecode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/urldecode) | This Function decodes a specified URL encoded string. | | [URLEncode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/urlencode) | This Function encodes a specified string into a URL encoded string. | | [XMLDecode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/xmldecode) | This Function decodes a specified XML encoded string. | | [XMLEncode](https://doc.sysdevmobile.com/kalipso5/developing/form/expressions/functions/functions-descriptions/string-functions/xmlencode) | This Function encodes a specified string into a XML encoded string. |