Michael Droettboom <[EMAIL PROTECTED]> writes: > In the existing mathtext implementation, font style changes affect the > following group. For example, in $\cal{R} x$, only the R will be in > calligraphic face. In TeX, however, font style markers stay in effect > until the next font style marker or the end of the enclosing group.
To clarify a little: in Plain TeX people usually write ${\cal R}x$, beginning the group before the font-changing macro. The LaTeX macros such as \mathcal take an argument: for example, both $\mathcal{R}x$ and $\mathcal Rx$ cause only R to have the calligraphic font. (The latter is because of TeX's parsing rules: \mathcal takes one argument, and since there is no {}-group, the argument consists of the single letter R.) The old mathtext style font-changing commands behave like the LaTeX macros but have names like the Plain TeX macros, and the change you are proposing to merge makes mathtext have both Plain TeX and LaTeX style commands. > It's difficult to trap the old > case and correct for it, since both are still valid. Is it easy to detect when a Plain TeX style command is followed by an opening brace, and output a warning? It is typically not useful to start a new group right after a font-changing command, so such usage is more likely to be caused by someone relying on the old behavior. > Becoming more TeX-like is a good thing, but does breaking existing > matplotlib plots warrant some additional care here? Should this be > merged into trunk, or onto some other branch where we're going to be > breaking a lot of things. It is probably feasible to have a > "compatibility" mode for this, but is that (in this particular case) > worth the extra maintenance burden? IMHO this should be merged into trunk, with a warning in case of "\cal{" if that is feasible, but no other compatibility mode. -- Jouni K. Seppänen http://www.iki.fi/jks ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel