Michel, Using the same dot pattern in character-definition rules and repeated rules is probably a good idea. However, if you don't want tabs to appear in the output you can use the dot pattern 0 in both cases. Just be sure that space is the first character defined with dot pattern 0. You can define the escape character as follows: space \x001b 1b John On Thu, Jan 22, 2009 at 07:36:04AM +0100, Michel such wrote: > John, > > When, for example there are repeated tabs or unbreakable spaces, > should we use the same dot patterns we use for single chars. > Should we have > space \t 9 > repeated \t 0 > or > space \t 9 > repeated \t 9 > > could you remind me the ascii code for escape? > > ----- Original Message ----- > From: John J. Boyer > To: liblouis-liblouisxml@xxxxxxxxxxxxx > Sent: Thursday, January 22, 2009 3:26 AM > Subject: [liblouis-liblouisxml] Questions about fr-bfu-comp8.utb > > > In comparing fr-bfu-comp8.utb with German computer braille I noticed > that in some of the uplow rules there is a space instead of a comma > between the two dot patterns. Is this deliberate? I also noticed that > several characters, including tab, are defined with dot 0 before the > space itself is defined with the same dot pattern. This will cause > trouble in back-translation. Space should be the first character defined > with dot 0. In defining tab, it would be a good idea to use virtual > dots, which were introduced after the early tables had been made. Tab > can be defined with dot 9, unbreakable space with dot a and escape with > dots 1b . These definitions are important when processing documents with > liblouisxml. > > I see other problems caused by copying pieces from early tables, but > these are the ones I felt most important to call to the attention of the > list. Many of the early tables were made up before we really knew what > we were doing. > > Sorry, Michel, I don't mean to pick on you. > > John > > -- > My websites: > http://www.godtouches.org > http://www.jjb-software.com > Location: Madison, WI, USA > > For a description of the software and to download it go to > http://www.jjb-software.com -- My websites: http://www.godtouches.org http://www.jjb-software.com Location: Madison, WI, USA For a description of the software and to download it go to http://www.jjb-software.com