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MiniRobotLanguage (MRL)

 

VLT. Command

Variable Left sides Trim

 

 

Intention

 

This command can be used to Trim Spaces from the left side of a variable-value.

 

By using the optional parameters you can trim any chars from the left side of the variable value.

 

Example:

 

VAR.§§LIN=  345  Hallo Marco

' We first remove the outer Spaces

VLT.§§LIN

DBP.>§§LIN<

' Result is: >345  Hallo Marco <

 

Now we use the Parameter P2.

 

VAR.§§LIN=  345  Hallo Marco

' $sp$ is a system-variable that is resolved to a SPACE character

VLT.§§LIN|$sp$345

DBP.>§§LIN<

' Result is: >Hallo Marco <

 

Now we use the third mode, for this Parameter P2 is the term "all"

 

VAR.§§LIN= $crlf$ 345  Hallo Marco

' "all" means all characters with ASCII codes below 33

VLT.§§LIN|all

DBP.>§§LIN<

' Result is: >345  Hallo Marco<

 

 

 

 

Syntax

 

VLT.[P1][|P2]

 

 

Parameter Explanation

 

P1   - (optional) Source and Target-variable, if omitted,

     TOS is used.

 

P2   - (optional) if given, ANY of the characters in P2

     will be trimmed at the left side of P1

 

 If Parameter 2 is "all" the characters from ASCI(0 to 32) and also $CR as well as $LF

   will be trimmed from the left side of P1.

 

 

Speed in Ticks:

This command uses typically around 290 Ticks.

 

 

Example

 

''*************************************

' VLT/VBT/SBD - DEMO

'*************************************

'DBM.2

 

VAR.§§LIN=  345  Hallo Marco

' We first remove the outer Spaces

VBT.§§LIN

PRT.>§§LIN<

' Now we remove the outer numbers and spaces

VLT.§§LIN|123 4567890

PRT.>§§LIN<

SBD.§§LIN|$sp$|4|§§ERG

MBX.§§ERG

END.

 

 

 

Remarks

 

-

 

 

Limitations:

 

-

 

 

See also:

 

•     1.5.2 Working with Text-Strings

•     VBT. - Variable-Both-sides-Trim

•     VRT. - Variable-Right-Trim

•     VTU. - Variable to Uppercase

•     VTL. - Variable to Lowercase

•     VTM. - Variable to Mediumcase

•     VRD. - Variable-Remove-Doubles

•     GFS. - Get-Filtered-String

•     VAR. - Variable Set Value/Clear

•     IVS. / NVS. - If-Variable-String

•     ! STR. - String Command

•     GSS. - GetSplitString

•     GES. - Get-Extracted-String

•     SBD. - String between Delimiter

•     SBM. - String between Delimiter-Multiple

•     FEM. - For Each Member

•     LEN. - Length-of-String

•     RPL. - RePLace in String