Hi,

You can use: 
	\setcharacterspacing[reset] 
when you don’t want the French character spacing, and 
	\setcharacterspacing[frenchpunctuation]
when you want it.

For instance for the interaction you would say:
	\setupinteraction[color=darkgreen,style={\setcharacterspacing[reset]\tt}]
	\setupinteraction [state=start]

and for setting up the typing
	\setuptype[style={\setcharacterspacing[reset]\tt}]
	\setuptyping[style={\setcharacterspacing[reset]\tt}]

Best regards: OK

> On 10 Apr 2015, at 11:51, joasyannick@gmail.com wrote:
> 
> Dear everyone,
> 
> I am writting a French document.
> I would like to turn off the French character spacing temporarily in order to
> typeset English document title or URL. For instance, I would like to define the commands
> 
> \def\englishtitle#1{\turnofffrenchcharacterspacing{\em #1}\turnonfrenchcharacterspacing}
> \def\url#1{\turnofffrenchcharacterspacing{\em #1}\turnonfrenchcharacterspacing}
> 
> so that a title link “Example: English Title” will be italicised and will not have a space before “:”;
> and a URL like “http://www.example.com <http://www.example.com/>” neither.
> 
> Many thanks,
> Joas
> 
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