Many thanks for looking at this.
I am very surprised by the following :
1 - when I type the post title with a " ' " i.e. with "' ;" only the post meta keep this, while the post title and post-content turn this into ’ which is Latin 1 - ISO 8859 charset. This is NOT specific to ai1ec, any regular post behaves similarly.
2 - while post-tile and post-content are both coded with this ’, they behave diffrently when passed to Google agenda with utf-8 charset : the title does not convert the character #, the content does.
This is the title :
La roue d’ ;Hudson
This is the content :
la roue d’Hudson
I have made several trials to convert $str to utf-8 or define charset=ISO-8859-1, without success.
When I replace " ' " with ´ (spacing acute accent) in the title, the code is not passed, which looks better but is still not satisfactory :
The title becomes :
La roue dHudson
I hope that all this information could give you some insight that might help me ... Thanks in advance !