# -sFont:

This parameter specifies which fonts (usually symbols fonts) to be ignored in String Search or String Copy contexts (Property Sheets->[Search]).
List fonts to be ignored, delimited by semicolons (;), followed by a space character, followed by fonts that have only uppercase letters (A to Z), also delimited by semicolons. For the latter, lowercase and other characters are ignored.
The tail part of the font name may be omitted by appending an asterisk (*). In this case, the delimiting semicolon (;) is can also be omitted. Thus, lasy* stands for lasy8, lasy10, etc. Here's an example:
-sFont:cmex*lasy*line*lcircle* cmsy*cmbsy*