try \codeux\ to fix the spacing issue.<br><br><div class="gmail_quote">On Fri, Nov 27, 2009 at 10:23 PM, Maxim Cournoyer <span dir="ltr"><<a href="mailto:maxim.cournoyer@gmail.com">maxim.cournoyer@gmail.com</a>></span> wrote:<br>
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Dear XeTeX fidels,<br>
<br>
In my first document written with XeTeX, I wanted to do an alias for the abbreviation CO_2 (carbon dioxyde), but had two difficulties.<br>
<br>
My first one was to try to use something like this : %\newcommand{\co2}{CO$_2$}<br>
The problem was that it seems we cannot use "numbers" in the command name, such as the '2' in \co2. Is there a way to circumvent this?<br>
<br>
Another weird issue I ran into was, after changing \co2 to something more wordy as \codeux, my actual replacement would delete all trailing space. Let me explain by an example : <br>
ex : The traffic in developed nations is the cause to an average of 26% of the \codeux emissions. <br>
<br>
Results : The traffic in developed nations is the cause to an average of 26% of the CO_2emissions.<br>
<br>
Note the lack of a space character between the _2 subscript and emissions. Using CO$_2$ straight in my text solved the problem, surprisingly. Is there an explanation for this? What should I do to prevent this from happening? <br>
<br>
Cheers.
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