STRING DELETE

STRING DELETE

Let Subcommand

Remove a user specified list of characters from a string.

The STRING REMOVE SPACES, STRING REMOVE WHITESPACE, and STRING REMOVE PUNCTUATION commands can be used to remove certain pre-defined sets of characters from a string. However, there may be times when you need to specifiy a specific list of characters to remove. The STRING DELETE command can be used to do that.

LET <sout> = STRING DELETE <sorg> <slist>
where <sout> is the name of the resulting string;
            <sorg> is the name of the original string;
and <slist> is the name of the original string.

You specifiy the characters you want to delete by defining the <slist> string. That is, <sorg> will be checked against each character in <slist>.

LET SOUT = STRING DELETE STIN SLIST

The name of the new string can be the same as the original string. For example,
LET STR = STRING DELETE STR

In this case, STR will now contain the the string with the characters removed rather than the original string.

The strings on the right hand side of the equal sign must be previously existing strings. That is, expressions are not allowed. For example, the following will result in an error message
LET STOUT = STRING DELETE "alan.heckert@nist.gov" "@"

you need to do

LET STRING SORG = alan.heckert@nist.gov
LET STRING SLIST = @
LET SOUT = STRING DELETE SORG SLIST


The name on the left hand side of the equal sign may be a previously existing string. However, if it is a previously existing parameter, variable, or matrix name, an error will be reported and the requested string will not be created.

The total number of characters that DATAPLOT can use for storing functions and strings is set when DATAPLOT is built. The current default (11/2008) is 50,000 characters. Previous versions may set this limit at 1,000 or 10,000 characters. This limit applies to the combined number of characters for all functions and strings.

None

None

STRING REMOVE SPACE	=	Remove spaces from a string.
STRING REMOVE WHITESPACE	=	Remove white space from a string.
STRING REMOVE PUNCTUATION	=	Remove punctuation from a string.
NUMBER OF WORDS	=	Return the number of words in a string.
UPPER CASE	=	Convert a string to upper case.
LOWER CASE	=	Convert a string to lower case.
LET FUNCTION	=	Defines a function.
LET STRING	=	Defines a string.
READ STRING	=	Reads a string from a file.
SUBSTITUTE CHARACTER (^)	=	Substitute the value of a string or parameter.
CONCATENATE CHARACTER (&)	=	Concatenate two strings.
SUBTRING	=	Extract a substring from an existing string.
BLANK STRING	=	Create a blank string.
STRING INDEX	=	Extract the start/stop positions of a substring within a string.
STRING CONCATENATE	=	Concatenate one or more previously defined strings.
STRING EDIT	=	Edit a string.
STRING MERGE	=	Insert a string into another string without overwrite.
STRING LENGTH	=	Return the length of a string.
CHARACTER	=	Convert numeric values to strings based on the ASCII collating sequence.
ICHAR	=	Convert a string to numeric values based on the ASCII collating sequence.
GROUP LABEL	=	Define the text for group labels.

Data Management

2018/10

 
let string stin = abcdefgabcdefg
let string slist = cde
let stout = string delete stin slist
print stin stout
    

The following output is returned

 
 FUNCTIONS--

     STIN    --abcdefgabcdefg
     STOUT   --abfgabfg