exchange() function

The exchange() function replaces the character specified as a hexadecimal string in str.exp1 with the character specified as a hexadecimal string in str.exp2.

Syntax

 exchange(var, str.exp1, str.exp2)

Parameter(s)

`var`	Specifies the variable in which the specified string will be searched and replaced.
`str.exp1`	Specifies the character in hexadecimal string format to be replaced with the corresponding replacement character in hexadecimal string format from `str.exp2`.
`str.exp2`	Specifies the character in hexadecimal string format to replace the character specified in hexadecimal string format in `str.exp1`.

Description

This function works like the convert() function, except that the second two arguments are specified as hexadecimal strings and only a single character can be exchanged.

Example(s)

Example 1

In this example, the result is bbc:

 
 crt exchange("abc",dtx(seq("a")),dtx(seq("b")))

Example 2

 * exchange commas to attribute marks
 var = "a,b,c"
 str.exp1 = "2c"
 str.exp2 = "fe"
 result = exchange( var, str.exp1, str.exp2 )
 crt "var = " : var
 crt "result = " : result

exchange() function

Syntax

Parameter(s)

Description

Example(s)

See also