Replaces single characters in a string.
||One or more characters to be removed and replaced. An expression that resolves to a string or numeric.
||One or more characters to be inserted in place of the corresponding characters in remove. An expression that resolves to a string or numeric.
||The string in which character substitutions are made. An expression that resolves to a string or numeric. string may be a dynamic array.
function edits the value of string
by replacing all instances of each single character in remove
with the corresponding single characters in replace
and returning the resulting string. CONVERT
performs a character-for-character substitution. Matching of characters is case-sensitive.
To replace all instances of a character in a string with another character, specify the character to be replaced in remove
and the replacement character in replace
. For example, to replace all instances of the # character with the * character in mystring
To replace all instances of a list of single characters with corresponding other single characters, specify those characters to be replaced in remove
and the corresponding replacement characters in replace
. For example, to replace all instances in mystring
of the each lowercase letter a, b, c, and d with the corresponding uppercase letter: CONVERT("abcd","ABCD",mystring)
To both replace some single characters and remove others, specify those characters to be replaced or removed in remove
. First specify those to be replaced, then those to be removed. Specify the corresponding replacement characters in replace
, and nothing for the characters to be removed. For example, to replace all instances of + with &, and to remove all instances of # in mystring
The value of remove
can be a string or a numeric. If numeric, the value is converted to canonical form (plus sign, leading and trailing zeros removed) before performing the CONVERT
contains more characters than replace
, the unpaired characters are deleted from the returned string. If replace
contains more characters than remove
, the unpaired characters are ignored and have no effect.
performs single character one-for-one substitution for all instances in a string. The CHANGE
function performs substring replacement, and can specify how many instances to replace and where to begin replacement.
statement and the CONVERT
function perform the same operation, with the following difference: the CONVERT
statement changes the supplied string; the CONVERT
function returns a new string with the specified changes and leaves the supplied string unchanged.
The order of the CONVERT
arguments differs in different emulation modes. In Caché MVBasic, the order is remove,replace,string
. In MultiValue emulation modes, the argument order is as follows:
The following example illustrates use of the CONVERT
function in converting a string to a dynamic array by replacing the # character with a Value Mark level delimiter character:
cities="New York#Chicago#Boston#Los Angeles"