Functions for managing character strings

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Functions for managing strings

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Functions for managing character strings

Versions 16 and later

Most of these functions are now available for the Windows Phone applications.

New in version 16

Most of these functions are now available for the Windows Phone applications.

Versions 17 and later

Most of these functions are now available for the iPhone/iPad applications.

New in version 17

Most of these functions are now available for the iPhone/iPad applications.

Versions 21 and later

Most of these functions are now available in Universal Windows 10 App mode.

Most of these functions are now available in Apple Watch mode.

New in version 21

Most of these functions are now available in Universal Windows 10 App mode.

Most of these functions are now available in Apple Watch mode.

Most of these functions are now available in Universal Windows 10 App mode.

Most of these functions are now available in Apple Watch mode.

The following functions are used to manage the character strings:


AnsiToOem	Transforms a character string in ANSI format (Windows) into a character string in OEM format (DOS).
AnsiToUnicode	Converts: a character string in ANSI format (Windows) into a character string in UNICODE format. a buffer containing a character string in ANSI format (Windows) into a buffer containing a character string in UNICODE format.
Asc	Returns the ASCII code of specified character.
BufferToHexa	Converts a buffer into a displayable hexadecimal string (for example: "4A 5B 00").
BufferToInteger	Extracts an integer found in a binary buffer at a given position.
BufferToReal	Extracts a real found in a binary buffer at a given position.
Charact	Returns the character corresponding to the specified ASCII code.
CharactType	Returns information about the type of character.
CharactTypeCount	Returns the number of characters matching the information of a given type.
CharactUnicode	Returns the character corresponding to the specified Unicode code.
CommonLength	Returns the number of characters common to two characters strings (from the beginning or from the end).
Complete	Returns a character string of a given size.
CompleteDir	Adds (if necessary) the "\" character at the end of a character string.
Contains	Used to find out whether a sub-string is included in a string.
ExtractLine	Extracts a specific line from a character string.
ExtractString	Allows you to: extract a sub-string from a character string according to a given string separator. browse the sub-strings in a character string according to a given string separator.
Versions 25 and later ExtractStringBetween New in version 25 ExtractStringBetween ExtractStringBetween	Allows you to: extract a substring between two given separators from a character string. browse through substrings between two given separators in a character string.
HexaToBuffer	Converts a string representing bytes in hexadecimal into a binary buffer.
HexaToInt	Returns the numeric value of an hexadecimal string.
HTMLToRTF	Converts an HTML string or an HTML buffer into a string in RTF format.
HTMLToText	Converts an HTML string or an HTML buffer into text string.
IntToHexa	Returns the hexadecimal string of a numeric value.
Versions 25 and later JSONToString New in version 25 JSONToString JSONToString	Converts the content of a JSON variable to a JSON string.
JSONToVariant	Converts a string in JSON format into a Variant variable.
Left	Extracts the left part (which means the first characters) from a character string or from a buffer.
Length	Returns: the size of a character string, which means the number of characters found in the character string (including the space and binary 0 characters). the size of a buffer, which means the number of bytes found in the buffer.
LengthToString	Converts a length expressed in bytes into a character string formatted in kilobytes, megabytes or terabytes.
LineToPosition	Returns the position of the first character of a line in a block of text.
Lower	Converts a character string into lowercase characters according to the localization settings defined in Windows.
MatchRegularExpression	Checks whether a character string corresponds to a specific format and retrieves the different sub-strings that constitute the format.
Middle	Extracts a sub-string from a given position in a string. a section from a given position in a buffer.
NoAccent	Transforms the accented characters found in a character string into non-accented characters.
NoCharacter	Returns a character string without the specified characters found on the left and on the right.
NoLeftCharacter	Returns a character string without the specified characters found on the left of the initial string.
NoRightCharacter	Returns a character string without the specified characters found on the right of the initial string.
NoSpace	Returns a character string without the space characters: found on the right and on the left. found inside the string.
NumberInWords	Transforms a number into a character string corresponding to the number "written in words".
NumToFinancialWritingChinese	Transforms a numeric value (integer, real or currency) into a character string in the Chinese financial writing format.
NumToString	Transforms a numeric value (integer, real or currency) into a character string according to the specified format.
OemToAnsi	Converts a character string in OEM format (DOS) into a character string in ANSI format (Windows).
Phonetic	Returns the phonetics corresponding to the string passed in parameter.
Position	Finds the position of a character string inside another character string.
PositionOccurrence	Finds the Xth position of a character string in a character string.
PositionToLine	Returns the number of the line to which belongs a character identified by its position in a block of text.
RepeatString	Concatenates N repetitions of the same character string or buffer.
Replace	Replaces all the occurrences of a word found in a string by another word.
Reverse	Returns the complement to 255 for each character found in a character string.
Right	Extracts the right part (which means the last characters) from a character string or from a buffer.
StringBuild	Builds a character string according to an initial string and to parameters.
StringCompare	Compares two strings character by character: according to the sequence of ASCII characters. according to the alphabetical order.
StringCount	Calculates: the number of occurrences of a specific character string (by respecting the search criteria) in another character string. the number of occurrences of a set of strings found in an array.
StringDelete	Deletes: all the occurrences of a sub-string inside a string. a section of string inside a string. The part of string to remove is identified by its position and length.
StringEndsWith	Checks whether a character string ends: with a specific character string. with one of the character strings found in a list.
StringFormat	Formats a character string according to the selected options.
StringIncrement	Increments a number found at the beginning or at the end of a character string.
StringInsert	Inserts a string into another character string at a given position.
StringRetrieve	Retrieves a character string in a format external to PC Soft (character string that is the result of a Windows API for example).
StringReverse	Reverses the characters of a string.
StringSplit	Extracts all the sub-strings from a character string according to a one or more string separators.
StringStartsWith	Checks whether a character string starts: with a specific character string. with one of the character strings found in a list.
Versions 25 and later StringToJSON New in version 25 StringToJSON StringToJSON	Converts a JSON string into a JSON variable.
StringToUTF8	Converts a string from ANSI or UNICODE format to UTF8 format.
SystemIntegerToInteger	Converts a system integer into a 4-byte integer
TextToHTML	Converts a text string into an HTML string (the CR characters are replaced by <BR>, the accented characters are replaced by their equivalent in HTML, ...).
TextToRTF	Converts a text string into a string in RTF format.
Truncate	Truncates the right part of a string or buffer.
UncompleteDir	Removes the "/"' or "\"' character found at the end of a string.
UnicodeToAnsi	Converts: a character string in UNICODE format into a character string in ANSI format (Windows). a buffer containing a character string in UNICODE format into a buffer containing a character string in ANSI format (Windows).
Upper	Converts a character string into uppercase characters according to the localization settings defined in Windows.
URLDecode	Decodes an encoded URL (which means with characters in %xx format).
URLEncode	Encodes a URL with a sub-set of ASCII characters.
URLExtractPath	Returns the different elements of a URL: protocol, user, password, domain, port, resource path, resource name, resource extension, request and fragment.
UTF8ToAnsi	Converts a string in UTF8 format into a string in Ansi format.
UTF8ToString	Converts a string in UTF8 format into a string in ANSI or UNICODE format.
UTF8ToUnicode	Converts a string in UTF8 format into a Unicode string.
Val	Returns the numeric value of a character string.
VariantToJSON	Converts the content of a Variant variable to JSON format.
WordCount	Returns the number of words in a string.
WordToArray	Fills an array with the words of a string.

Other functions can also be used to handle the character strings:


ArrayToString	Converts a one-dimensional array or a two-dimensional array into a character string.
Deserialize	Deserializes a buffer or a character string containing the data of a class, a structure or an array and their sub-elements.
StringToArray	Fills a one- or two-dimensional array with the content of a string.
StringToDate	Transforms a date in character string format into a date in YYYYMMDD format.
TextToXML	Converts a character string in ANSI format into a character string in XML format.
XMLToText	Converts a character string in XML format into a character string in ANSI format.

Related Examples:

Unit examples (WEBDEV): The HTMLTo functions

[ + ] This example explains how to use the HTMLToRTF and HTMLToText functions of WLanguage.

Unit examples (WINDEV): The Val function

[ + ] Using the WLanguage "Val" function with different databases.
For example, it allows you to retrieve the decimal value of a string in Hexadecimal format.

Unit examples (WINDEV): The standard functions on strings

[ + ] Using the main functions for handling character strings:
- Position and PositionOccurrence
- Replace
- StringBuild
- Left, Right, Middle
- ExtractString

Unit examples (WINDEV): Complex strings

[ + ] Implementing the building of complex strings with StringBuild.

Unit examples (WINDEV): Strings with APIs

[ + ] Using strings with APIs.
The following functions are used:
- StringRetrieve
- Transfer

Unit examples (WINDEV): The encryption functions

[ + ] Using the encryption/decryption functions of WINDEV.
This example is used to:
- Encrypt a character string
- Decrypt a character string

Training (WINDEV): WD Input checks

[ + ] This example presents the manage of the input checks with the WLanguage functions.
The following topics are presented in this example:
1/ the functions for handling the strings
2/ the use of the file that groups the French cities

Summary of the example supplied with WINDEV:
This program, powered by WINDEV, explains how to check the data entered by the user: name, company, zip code, city, email address, and so on.
This example contains several procedures that can be easily reused.
The file containing 39 000 zip codes and cities is supplied with this example

Unit examples (WINDEV): The regular expressions

[ + ] Using regular expressions with WINDEV.
Two use modes are presented for the regular expressions:
- checking the input format
- checking out different elements while respecting the input format.
This example is also used to search for a word in a string. The search can be case-sensitive or not. Possibility to take into account (or not) the start or end of string, as well as spaces (anywhere in the string, even in the sought word)

Unit examples (WINDEV Mobile): The regular expressions

[ + ] Using regular expressions with WINDEV Mobile.
It presents 2 modes for using the regular expressions:
- check the input format
- check out the different elements that match the input format.
This example is also used to search for a word in a string. The search can be case-sensitive or not. Possibility to take into account (or not) the start or end of string, as well as spaces (anywhere in the string, even in the sought word)

Unit examples (WINDEV Mobile): The encryption functions

[ + ] Using the WLanguage encryption and decryption functions.
This example is used to:
- Encrypt a character string
- Decrypt a character string

Unit examples (WEBDEV): The encryption functions

[ + ] This example explains how to use the encryption/decryption functions of WEBDEV. This example allows you to:
- Encrypt a character string
- Decrypt a character string