RTL Compiler functions with regexp

Hi Stephanie,

this is standard TCL behavior. If enclosed in double-quotes, you will need to escape the [] characters. In general regexps can be expensive to use in tools. They are extremely useful indeed but sometimes there are better alternatives in terms of performance

gh-

Hi Grasshopper,

Originally I tried this with the escape characters, but it does not work.  What am I doing wrong?

rc:/> [get_libs -regexp "scs8ls_\[sft\]\[sft\]_.*"]
Warning : Could not find requested search value. [SDC-208] [get_libs]
        : The 'get_libs' command cannot find any libraries named 'scs8ls_[sft][sft]_.*'.
[]

This is kinda tricky since SDC provides an application note with commands and options but nothing on semantics, etc.

Here is how you can make it work in Innovus and Genus. I believe Innovus is 'more' correct in this case. I believe Genus is too strict in interpreting as literal when using {} to protect string

[DEV]innovus 5> get_libs -regexp {r[ao]m.*}
ram_256x16_slow rom_512x16A_slow ram_256x16_fast rom_512x16A_fast
0x18

genus@root:> get_libs -regexp "r\\\[ao\\\]m.*"
library:wc0d99com/ram_256x16_slow library:wc0d99com/rom_512x16A_slow

Using {} in Genus will result in nothing found since [] gets interpreted as literals. The downside of the innovus approach would be looking for libraries that have literal [] in their name would then likely require escapes, etc.

hope this helps,

gh-