You are correct that there's only so many opportunities for formatting but there are many combinations and permutations. Think of how many different formats are used in an old plain text man page.
In addition to centering and indenting, there are requirements for inserting blank lines as part of certain types of formatting. And there are the standard rules about avoiding widows and orphans. And then there are the odd rules like those for poems where lines that end up being runover in braille but not print (because of the shorter lines in braille) are done with a hanging indent where the indent is two spaces greater than the greatest line indent in the **entire** poem. My guess is that the braille formatting rules are different in different languages; I only know American English braille. Here's a link to our formatting rules. Rule 4: Headings and Rules 7-19 are all relevant to my question. http://www.brl.org/formats/ The first computer-based braille translating applications became available in 1965 and yet the formatting part still isn't fully automated. You can even become a certified expert in Braille Formats by taking a US$75 course and paying US$125 for the final test. http://www.nationalbraille.org/BrailleFormatsCourse.htm I'll see if I can find a good example of something that illustrates a wider variety of different formats than in the links I gave earlier. Susan _______________________________________________ Groff mailing list Groff@gnu.org http://lists.gnu.org/mailman/listinfo/groff
