Character string: How to extract, delete, replace words?

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Processes on strings

Character string: How to extract, delete, replace words?

Extracting a specific number of characters at the beginning of a string

Extracting a specific number of characters at the end of a string

Extracting a specific number of characters in the middle of a string

Extracting a word separated by specific characters

Deleting spaces at the beginning and end of a string

Replacing characters in a string

Finding out whether a sub-string is included in another string

Character string: How to extract, delete, replace words?

Extracting a specific number of characters at the beginning of a string
Extracting a specific number of characters at the end of a string
Extracting a specific number of characters in the middle of a string
Extracting a word separated by specific characters
Deleting spaces at the beginning and end of a string
Replacing characters in a string
Finding out whether a sub-string is included in another string

Character string: How to extract, delete, replace words?

Table of contents

Extracting a specific number of characters at the beginning of a string
Extracting a specific number of characters at the end of a string
Extracting a specific number of characters in the middle of a string
Extracting a word separated by specific characters
Deleting spaces at the beginning and end of a string
Replacing characters in a string
Finding out whether a sub-string is included in another string

Extracting a specific number of characters at the beginning of a string

First syntax (recommended) : Use the operators for handling strings.

sMyResultString is string
sMySourceString is string

sMySourceString = "Hello this is a test"

sMyResultString = sMySourceString[[1 TO 5]]

// sMyResultString is set to "Hello"

Second syntax : Use Left.

sMyResultString is string
sMySourceString is string

sMySourceString = "Hello this is a test"

sMyResultString = Left(sMySourceString, 5)

// sMyResultString is set to "Hello"

Extracting a specific number of characters at the end of a string

First syntax (recommended) : Use the operators for handling strings.

sMyResultString is string
sMySourceString is string

sMySourceString = "Hello this is a test"

sMyResultString = sMySourceString[[Length(sMySourceString) - 4 TO]]

// sMyResultString is set to "test"

Second syntax : Use Right.

sMyResultString is string
sMySourceString is string

sMySourceString = "Hello this is a test"

sMyResultString = Right(sMySourceString, 4)

// sMyResultString is set to "test"

Extracting a specific number of characters in the middle of a string

First syntax (recommended) : Use the operators for handling strings.

sMyResultString is string
sMySourceString is string

sMySourceString = "Hello this is a test"

sMyResultString = sMySourceString[[7 on 4]]

// sMyResultString is set to "this"

Second syntax : Use Middle.

sMyResultString is string
sMySourceString is string

sMySourceString = "Hello this is a test"

sMyResultString = Middle(sMySourceString, 7, 4)

// sMyResultString is set to "this"

Extracting a word separated by specific characters

Use ExtractString.

sMyResultString is string
sMySourceString is string

sMySourceString = "Hello this is a test"

sMyResultString = ExtractString(sMySourceString, 2, " ")

// sMyResultString is set to "this"

Deleting spaces at the beginning and end of a string

Use NoSpace.

sMySourceString is string

sMySourceString = " Hello this is a test "

sMyResultString = NoSpace(sMySourceString)

// sMyResultString is set to "Hello this is a test"

Replacing characters in a string

Use Replace.

sResultString = Replace("Hello, this is a test", " ", "_")

// sResultString is set to : "Hello,_this_is_a_test"

Finding out whether a sub-string is included in another string

First syntax: if the position of the sub-string must be retrieved, use Position.

sFullString is string = "WINDEV is a great tool"
sSubString is string = "tool"

nPosition is int = Position(sFullString, sSubString)
// nPosition is set to 19

Second syntax: if you just want to find out whether the sub-string is found, use the comparison operator[=] (recommended) or Contains.

sFullString is string = "WINDEV is a great tool"
sSubString is string = "tool"

IF sFullString [=] sSubString THEN
Info("The sub-string is found in the full string")
END

// Equivalent to:
//IF Contains(sFullString, sSubString) THEN
// Info("The sub-string is found in the full string")
//END