Escaping string arguments in i18n

[Chusslove Illich]

> [: Oswald Buddenhagen :]
> can you please provide some concrete examples? the problems you are
> describing should not appear in reasonably crafted code usually, so i must
> be missing something.

Any filename in rich context will do. E.g, in:

  "<qt>The template file <b>%1</b> does not exist.</qt>"

if the filename contains "<...>" substring, and it was not escaped before
substitution, Qt will eat it. Similarly with external messages:

  "Unable to stop service <em>service</em>.<br /><br /><i>Error: %1</i>"

(both these examples do not substitute their arguments escaped).

Or, if the argument contained opening < which does not make a proper tag,
and is substituted before any proper tag, Qt will interpret the string as
non-rich text.

-- 
Chusslove Illich (Часлав Илић)
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