Programmer Guide/Command Reference/TOKEN: Difference between revisions

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==TOKEN==
<var>var</var> := TOKEN [ [[Command_Reference_Options/Silent|/Silent]] ] [ /D=<var>delimiter</var> ] [[Programmer_Guide/Command_Reference_Options/-|/-]] <var>index</var> <var>string<sub>1</sub></var> <var>string<sub>2</sub></var>


<code>var := TOKEN [ /S ] [ /D=delimiter ] /- <var>index</var> <var>string1 string2</var></code>
This command, similar to the <code>[[Programmer Guide/Command Reference/WORD|WORD]]</code> command, tokenises a string using blanks, or the specified delimiter.


-> var = 'token' or empty if <var>index</var> is not a number or outside the range 0 .. nTokens-1
The command returns the respective token or an empty string if <var>index</var> is not a number or if it is outside the range 0&hellip;<var>nTokens</var>-1
 
This command, similar to the <code>[[Programmer Guide/Command Reference/WORD|WORD]]</code> command, tokenises a string using blanks, or the specified delimiter.


When using <code>TOKEN</code>, do not forget to use the "/-" option before the first argument (and after any other options). Without the "/-" option, any argument starting with a slash will be mistaken for an option.
When using <code>TOKEN</code>, do not forget to use the [[Programmer_Guide/Command_Reference_Options/-|<code>/-</code>]] option before the first argument (and after any other options). Without the [[Programmer_Guide/Command_Reference_Options/-|<code>/-</code>]] option, any argument starting with a slash will be mistaken for an option.


;<var>index</var>
;<var>index</var>
:The zero-based index of the word to return (0 &le; <var>index</var> &le; <var>nWords</var>-1).


:The zero-based index of the word to return (0 <= <var>index</var> <= nWords-1).
;<var>string<sub>1</sub></var> <var>string<var>2</var></var>
 
;<var>string1, string2</var>
 
:A string to tokenise.
:A string to tokenise.


;<var>/S</var>
;<code>[[Command_Reference_Options/Silent|/Silent]]</code>
 
:If set, the function sets the return code on failure. Otherwise, it sets the return code to 0, even if the parameters are invalid.
:If set, the function sets the return code on failure. Otherwise, it sets the return code to 0, even if the parameters are invalid.


;<var>/D</var>
;<code>/Delimiter</code>
 
:Set the delimiter using the following format:
:Set the delimiter using the following format:
 
:<code>/Delimiter=</code><var>delimiter</var>, e.g. <code>#var := token /D=, /- $#index $#wordlist</code>
:/D=delimiter
 
:E.g.:
 
:#var := token /D=, /- $#index $#wordlist
 
:The default delimiter is a blank.
:The default delimiter is a blank.


Example:
== Example ==


<pre>
#str := set 'to be, or not to be, that is the question'
#str := set 'to be, or not to be, that is the question'
#var := token /D=, /- 1 $#str
#var := token /D=, /- 1 $#str
um The second comma separated value in the string "$#str" is "$#var"
um The second comma separated value in the string "$#str" is "$#var"
// will return ' or not to be'
// will return ' or not to be'
</pre>

Revision as of 15:21, 2 May 2014

var := TOKEN [ /Silent ] [ /D=delimiter ] /- index string1 string2

This command, similar to the WORD command, tokenises a string using blanks, or the specified delimiter.

The command returns the respective token or an empty string if index is not a number or if it is outside the range 0…nTokens-1

When using TOKEN, do not forget to use the /- option before the first argument (and after any other options). Without the /- option, any argument starting with a slash will be mistaken for an option.

index
The zero-based index of the word to return (0 ≤ indexnWords-1).
string1 string2
A string to tokenise.
/Silent
If set, the function sets the return code on failure. Otherwise, it sets the return code to 0, even if the parameters are invalid.
/Delimiter
Set the delimiter using the following format:
/Delimiter=delimiter, e.g. #var := token /D=, /- $#index $#wordlist
The default delimiter is a blank.

Example

#str := set 'to be, or not to be, that is the question'
#var := token /D=, /- 1 $#str
um The second comma separated value in the string "$#str" is "$#var"
// will return ' or not to be'

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