MiniRobotLanguage (MRL)
STR.GrabSingle
Extract a Specific Field from a Delimited String, using one (optinal multiple Character) Delimiter
Result from the Script below. Note the difference between ".," and ",."
Intention
While there are lots of commands especially for handling of delimited Strings, here is another one, in the STR.-Section.
This command extracts a specific field (P2) from a delimited source string (P1).
The delimiter can be optionally specified (P3), and the default is a comma.
This delimiter can have multiple characters.
The result is either placed on the Top of Stack (TOS) or in an optional variable (P4).
If you want to use a command that accepts multiple SIngle-character delimiters, use STR.GrabDelimited instead.
Syntax
STR.GrabSingle|P1|P2[|P3|P4]
Parameter Explanation
•P1 - (Source String) The string from which to extract the field.
•P2 - (Field Index) The index of the field to grab from the source string.
•P3 - (Optional) Delimiter string. If omitted, the default is a comma.
This command applies will treat the characters in P3 together as one SIngle or multi-character delimiter delimiter.
•P4 - (Optional) Variable for storing the result. If omitted, the result is placed on TOS.
Example
'***********************************
' STR.-Sample
'***********************************
$$SRC=Hello,.this,.new.,world
$$LVA=1
STR.GrabSingle|$$SRC|$$LVA|,.|$$REA
$$LVA=2
STR.GrabSingle|$$SRC|$$LVA|,.|$$REB
$$LVA=3
STR.GrabSingle|$$SRC|$$LVA|,.|$$REC
MBX.$$REA$crlf$ $$REB$crlf$ $$REC
ENR.
Remarks
-
Limitations:
-
See also:
•