[OS X TeX] Invisible character

Jonathan Kew jonathan_kew at sil.org
Thu Jun 22 17:12:58 CEST 2006

On 22 Jun 2006, at 3:54 pm, Alain Schremmer wrote:
> 1) Robertson's macros do use the bullet as place-holder. But,  
> occasionally, I use "sparse" tables in which I "leave [many place- 
> holders] as-is" hence my quest for an invisible place-holder.

Another option would be to redefine the bullet so that it disappears.  
For example,

   \catcode`\•=\active \def•{}

will do this, by making the bullet character a macro that expands to  

You'd need to place this *before* the \begin{tabular} or whatever,  
but might want to place it *within* a surrounding environment such as  
{centered}, so that the effect is contained and doesn't affect any  
bullets that you may happen to use later in the document.

(It wouldn't interfere with bullets auto-generated by LaTeX, e.g., by  
{itemize}, only those that occur as literal characters in the input  


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