Good evening I'm trying to sort out some problem I'm having debugging a tex-map routine. I'm trying to rule out things that might be causing unexpected results (other than the obvious which is that I don't know what I am doing). The comment character for tex is % The comment character for Therion data files is # Does it affect the way tex is interpreted by Therion if the two are combined, as in the two examples below? Mostly it seems to have no effect, but now I am wondering if I am mistaken, and sometimes it does? # Define Map title overrides code tex-map # % Output map title as determined by Therion 5.3 is stored in cavename. # % It will be empty if there are multiple maps selected for any one projection # % \edef\temp{\the\cavename} % cavename from Therion # % \edef\nostring{} % empty string # % \ifx\temp\nostring % test if cavename is empty # Define Map title overrides code tex-map % Output map title as determined by Therion 5.3 is stored in cavename. % It will be empty if there are multiple maps selected for any one projection % \edef\temp{\the\cavename} % cavename from Therion % \edef\nostring{} % empty string % \ifx\temp\nostring % test if cavename is empty Thanks Bruce