This is partly an answer supporting the Automatic setting of the indent for Chinese text being 2 characters rather than 1 character, and partly a demonstration of how using a character (“ch”) as a unit of indentation has other problems. Both of these issues have been pointed out by @jiero in the comments beneath the answer by @ROSt53. Hopefully this provides further support for the argument as put forth.
I am attaching an example (rename from ODT to ZIP) to show how the current implementation for indenting Chinese paragraph text varies with type size (10.5 pt and 72 pt). Illustrations cover:
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Automatic setting for First line.
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2.00ch setting for First line.
- Two ideographic space (U+3000) at paragraph beginning.
The third test above is effectively the control group that shows how Chinese text would normally be expected to behave. @jiero if you can confirm that what I have done here is OK I will attach it to the bug (and confirm it).
The attachment is fairly self-explanatory so I won’t bother repeating the full details here. Summary: The “character” (i.e., “ch” unit) as implemented for indenting appears to be a fixed unit (set at whatever the default text size is, such as 10.5 pt) rather a character of the current type size. This does not occur when the Automatic (i.e., single character) setting is used, but that has the problem of being one, rather than two characters as mentioned.
EDIT: The related OpenOffice bug for the 2 characters vs 1 character indent is AOO#85257. It is probably also worth noting that the CJK macro package for LaTeX introduced a \CJKindent
macro in v4.5.1 on 17 June 2002 that was set to two ideographic spaces. I think you can mention this in your bug @jiero.