Syntax: !attrvars [filename]Most of the internally recognized variables can be set from the technology file (see A.8.9), using the same syntax as for technology file keywords. The variables are categorized as boolean or string types, which are set using different syntax forms.
Most, but not all, variables can be set in this way. There are a few that are strange in one way or another and are excluded.
This command will list, in filename, the boolean and string variable names that can be set in this manner. This is intended for reference purposes, and the list is rather long.
If filename is not specified, ``attrvars.txt'' is used.