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system-veriloguvm

Regex in SV or UVM

What functions do I need to call to use Regular Expressions in Systemverilog/UVM?

Note: I'm not asking how to use regular expressions, just method names.

Solution

  • First, if you want to use regular expression, you'll need to make sure you're using a UVM library compiled together with its DPI code (i.e. the UVM_NO_DPI define isn't set).

    The methods you want to use are located in dpi/uvm_regex.svh. The main function is uvm_re_match(...), which takes as an argument a regular expression and the string to match against. This is basically a wrapper around the regexec(...) C function found in the regex.h library. It will return 0 on a match.

    Another function you might want to use is uvm_glob_to_re(...) which can convert from a glob expression (the kind you get in a Linux shell) to a true regular expression.