incompatible character encodings
Why the following example fails with the "Encoding::CompatibilityError: incompatible character encodings: Windows-1250 and UTF-8" exception?
s = "\u017Elu\u0165ou\u010dk\u00fd"
a = s.encode 'cp1250'
b = s.encode 'utf-8'
c = a + b
I would expect that if the strings are not in the same encoding, that Ruby will do everything they can to satisfy me, but they just tries if there is possible conversion to ASCII otherwise exception is fired. This is really annoying behavior.
Have you considered to allow such string merge?
#7 Updated by naruse (Yui NARUSE) almost 8 years ago
I wrote above but in Japanese, second is its translation.
James' and string19 is also well documented.
People in ISO 8859 may think why Unicode is not a super set of Windows-1252.
In Japan, because of lack of standard conversion tables
between Japanese legacy encoding (Shift_JIS, EUC-JP, ISO-2022-JP) and Unicode,
vendors use different tables.
This sad situation made that Unicode is not a simple super set of legacy.
Ruby 1.9 inherits this.
If wide consensus for the standard table was made before Ruby 2.0,
Ruby 2.0 may have automatic conversion (or Unicode comes to be the internal code).