All Latin characters required by Pe̍h-ōe-jī can be represented using Unicode (or the corresponding ISO/IEC 10646: Universal Character Set), using precomposed or combining (diacritics) characters. Prior to June 2004, the vowel akin to but more open than o, written with a dot above right, was not encoded. The usual workaround was to use the (stand-alone; spacing) character Interpunct (U+00B7, ·) or less commonly the combining character dot above (U+0307). As these are far from ideal, since 1997 proposals have been submitted to the ISO/IEC working group in charge of ISO/IEC 10646—namely, ISO/IEC JTC1/SC2/WG2—to encode a new combining character dot above right. This is now officially assigned to U+0358 (see documents N1593, N2507, N2628, N2699, and N2713). Font support is expected to follow.
How is the less commonly combining character dot above dealt with?
encode a new combining character dot above right