HAS-Motion Software Documentation

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== Reserved Characters ======

Reserved Characters in Expressions

==== Contents ====



  * [[#AMP|1 AMP]]
  * [[#COLON|2 COLON]]
  * [[#SEMICOLON|3 SEMICOLON]]
  * [[#PLUS|4 PLUS]]
  * [[#FSLASH|5 FSLASH]]
  * [[#SPACE|6 SPACE]]


==== AMP ====

AMP = &

For example, if the desired pipeline command were as follows:

**Select_Active_File**
/FILE_NAME=ALL_FILES
/QUERY= TAG1 & TAG2
**;**
If the tags TAG1 and TAG2 exist then all files that have been assigned both tags will be active.

If, however, we want to use pipeline parameters in place of the text TAG1 and TAG2, we have a problem because there is no way to stop Visual3D from using the & character to concatenate the text. The solution was to introduce a reserved parameter ::AMP.

The following pipeline would result

Set_Pipeline_Parameter

**Set_Pipeline_Parameter**
/PARAMETER_NAME=A
/PARAMETER_VALUE=TAG1
**;**
**Set_Pipeline_Parameter**
/PARAMETER_NAME=B
/PARAMETER_VALUE=TAG2
**;**
**Select_Active_File**
**/FILE_NAME=ALL_FILES**
**/QUERY= ::A&::AMP&::B**
**;**
This would result in Visual3D interpreting the query

/QUERY=TAG1 & TAG2
For more: [[https://www.c-motion.com/v3dwiki/index.php?title=Expressions:_Examples_of_Using_the_AMP_Operator|Examples of Using the AMP Operator]]

==== COLON ====

COLON = :

==== SEMICOLON ====

SEMICOLON = ;

==== PLUS ====

PLUS = +

==== FSLASH ====

FSLASH = /

==== SPACE ====

SPACE=" "