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 WINDEV, WEBDEV AND WINDEV MOBILE

Version: 2026
Character string: How do I extract, delete or replace words?
This page presents the main operations that can be performed on a character string.
ToClipboardRTF (Function)
Writes a character string in RTF into the clipboard.
Complete (Function)
Returns a character string of a specified length.
<Ansi string type>.Complete (Function)
Returns a character string of a specified length.
Val (Function)
Returns the numeric value of a character string.
Decrypt (Function)
Decrypts a character string that was encrypted by Encrypt.
StringBuild (Function)
Builds a character string from an initial string and parameters.
<Document variable>.Seek (Function)
Finds a character string in an entire Document variable.
EvaluateExpression (Function)
Evaluates the value of an expression built in a character string.
<Document variable>.ToText (Function)
Creates a character string with the data of a Document variable.
ExecuteCode (Function)
Runs the WLanguage code found in a character string.
Position (Function)
Finds the position of a specified string within another string.
Translating programming messages
When developing a multilingual application, you can translate the different messages displayed to the user (messages displayed by Info and YesNo, for example.
<ANSI string>.Reverse (Function)
Reverses the characters of a string.
<Table>.ToText (Function)
Creates a character string from the data found in a Table or TreeView Table control.
<Type Buffer>Decode (Function)
Decodes a character string that was encoded by Encode.
Length (Function)
Returns:
  • the length of a string, i.e., the number of characters in the string (including spaces and binary zeros).
  • the size of a buffer, i.e., the number of bytes in the buffer.
Encode (Function)
Encodes a character string or a buffer. To decode the result, simply use Decode.
fFind (Function)
Finds a character string or a buffer in a file opened by fOpen.
TableToText (Function)
Creates a character string from the data found in a Table or TreeView Table control.
Date and Time functions
List of functions for managing dates and times
Middle (Function)
Extracts:
  • a substring from a string starting at a specified position.
  • part of a buffer starting at a specified position.
ExtractStringBetween (Function)
Allows you to:
  • extract a substring between two given separators from a character string.
  • search for substrings between two given separators in a character string.
UUEncode (Function)
Encodes a character string according to the UUEncode algorithm.
<ANSI string>.EndsWith (Function)
Checks whether a character string ends with:
  • with a specific character string.
  • with one of the character strings in an array.
NoCharacter (Function)
Returns a string after removing the specified leading and trailing characters.
<DiskFile variable>.Find (Function)
Finds a character string or a buffer in a file opened by fOpen.
NoRightCharacter (Function)
Returns a string after removing the specified characters from the right side of the initial string.
Unicode in character strings
The Unicode format is an encoding system that assigns a unique number to each character.
RegexMatch (Function)
Checks whether a string matches the format defined by a regular expression.
RTFReplace (Function)
Replaces or inserts a character string in an RTF control (found in a window or in a report) or in a string in RTF (containing a text in RTF).
Project string manager
WINDEV, WEBDEV and WINDEV Mobile include a string management tool that allows you to view and manipulate all the strings used in the project (or in an element of the project)...
ASCIIZ string of (Variable type)
The ASCIIZ string of type is used to manipulate strings with a null character at the end, denoted by a zero (as in the C programming language).
StringIncrement (Function)
Increments a number at the beginning or at the end of a string.
LineToPosition (Function)
Returns the position of the first character of a line in a block of text.
<ANSI string>.RegexMatch (Function)
Checks whether a string matches the format defined by a regular expression.
fInsertTextAtBeginning (Function)
Inserts text at the beginning of a file without overwriting the existing text.
ExtractStringAfter (Function)
Extracts a substring from a given delimiter to the end of the string.
Versions 2026 and later
Note: This function is only available from version 2026 - Update 1.
Subscription-exclusive new feature
Note: This function is only available from version 2026 - Update 1.
New in version 2026
Note: This function is only available from version 2026 - Update 1.
Note: This function is only available from version 2026 - Update 1.
RTFAdd (Function)
Adds a character string (in RTF or not) at the end of RTF edit control, RTF control in a report or character string containing a text in RTF.
<ANSI string>.DeleteDuplicate (Function)
Removes duplicates among substrings of a string, based on one or more separators.
fAddText (Function)
Adds the content of a character string at the end of a file.
ExtractStringBefore (Function)
Extracts a substring from the beginning of the string to a given delimiter.
Versions 2026 and later
Note: This function is only available from version 2026 - Update 1.
Subscription-exclusive new feature
Note: This function is only available from version 2026 - Update 1.
New in version 2026
Note: This function is only available from version 2026 - Update 1.
Note: This function is only available from version 2026 - Update 1.
Decode (Function)
Decodes a character string that was encoded by Encode.
String functions
List of functions for managing character strings
CharactTypeCount (Function)
Returns the number of characters matching a given type.
XMLToText (Function)
Converts a character string in XML format into a standard character string.
Functions for managing RTF controls
List of functions for managing RTF controls
MatchRegularExpression (Function)
Checks whether a character string matches a specific format and retrieves the different substrings that match the format.
RTFInsert (Function)
Inserts a character string in RTF into the content of an RTF control (found in a window or in a report) or into the content of a character string in RTF.
Operators on character strings
The character strings can be handled by specific WLanguage functions or by the +, [[ and ]] operators...
TimeToString (Function)
Converts a time to a string in the specified format.
<Unicode string>.RegexMatch (Function)
Checks whether a string matches the format defined by a regular expression.
Manipulating strings
WINDEV, WINDEV Mobile and WEBDEV allow you to perform different types of operations on strings using WLanguage functions...
FOR ALL/FOR EACH statement (browse of strings)
The FOR EACH statement is used to browse strings according to different methods...
<ANSI string>.Insert (Function)
Inserts a string into another character string at a given position.
StringInsert (Function)
Inserts a string into another character string at a given position.
Multilingual messages: Convert to new format (version 27 and later)
WINDEV, WEBDEV and WINDEV Mobile have included multilingual project support in many previous versions...
StringEndsWith (Function)
Checks whether a character string ends with:
  • with a specific character string.
  • with one of the character strings in an array.
<JSON variable>.ToString (Function)
Converts the content of a JSON variable to a JSON string.
Pascal string of (Variable type)
The Pascal string of type corresponds to a length-prefixed string (this length is stored as a byte value). This type of variable is kept for backward compatibility.
WordToArray (Function)
Fills an array with the words from a string.
String literals: single-line and multiline strings
String literals are used to represent and manipulate data as a sequence of characters. For example, string literals can be used to display information, define a constant, etc.
String (Variable type)
The String type is used to manipulate strings...
WordCount (Function)
Returns the number of words in a string.
Unicode string on (Variable type)
The type Unicode string on is a fixed-length string containing only characters in Unicode format.
<ANSI string>.Increment (Function)
Increments a number at the beginning or at the end of a string.
Phonetic (Function)
Returns the phonetic transcription of the string passed as parameter.
<Type Buffer>Encode (Function)
Encodes a character string or a buffer. To decode the result, simply use Decode.
<ANSI string>.CharactTypeCount (Function)
Returns the number of characters matching a given type.
StringReverse (Function)
Reverses the characters of a string.
PositionOccurrence (Function)
Finds the Xth position of a string within another string.
CommonLength (Function)
Returns the number of common characters between two strings (from the beginning or from the end of the string).
ExtractLine (Function)
Extracts a specific line from a character string.
Hash functions
Hashing is used to summarize a file or a character string...
gToText (Function)
Deletes the graphic elements from a character string that uses gStoredValue, gImage, ...
Functions for managing Dates and Times (prefix syntax)
List of functions for managing dates and times
NoLeftCharacter (Function)
Returns a string after removing the specified characters from the left side of the initial string.
String functions (prefix syntax)
The following functions are used to handle strings in prefix syntax:
String of (Variable type)
The String of type is used to manipulate fixed-length strings. These strings have a null character at the end, denoted by a zero (as in the C programming language).
iPrintWord (Function)
Sends the character string passed in parameter to the print buffer.
StringDelete (Function)
Deletes:
  • all the occurrences of a substring within a string.
  • part of a string within another string. The part of the string to remove is identified by its position and length.
StringToJSON (Function)
Converts a JSON string into a JSON variable.
PositionToLine (Function)
Returns the number of the line that contains a character identified by its position in a block of text.
NoAccent (Function)
Converts accented characters in a string to non-accented characters.
TextToXML (Function)
Converts an ANSI string to an XML string.
UUDecode (Function)
Decodes a character string in UUEncode format.
JSONToString (Function)
Converts the content of a JSON variable to a JSON string.
Truncate (Function)
Truncates the right part of a string or buffer.
StringDeleteDuplicate (Function)
Removes duplicates among substrings of a string, based on one or more separators.
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