On 29/03/10 04:08, bill lam wrote:
lun, 29 Mar 2010, Tony Mechelynck skribis:
On 29/03/10 02:31, Tim Chase wrote:
Tony Mechelynck wrote:
Matt gave you a solution in several steps, but here's a single-step
one, taking advantage of both case-matching and case-insensitive
operators, of |sub-replace-expression| and of the ternary operator ?:
as in (condition ? result_if_true : result_if_false) |expr1| :
command -nargs=0 -range=% -bar Xeo
\<line1>,<line2>s/\c[scujgh]x/\=(
\ submatch(0) ==# 'sx' ? 'ŝ' :
\ submatch(0) ==# 'cx' ? 'ĉ' :
\ submatch(0) ==# 'ux' ? 'ŭ' :
\ submatch(0) ==# 'jx' ? 'ĵ' :
\ submatch(0) ==# 'gx' ? 'ĝ' :
\ submatch(0) ==# 'hx' ? 'ĥ' :
\ submatch(0) ==? 'SX' ? 'Ŝ' :
\ submatch(0) ==? 'CX' ? 'Ĉ' :
\ submatch(0) ==? 'UX' ? 'Ŭ' :
\ submatch(0) ==? 'JX' ? 'Ĵ' :
\ submatch(0) ==? 'GX' ? 'Ĝ' : 'Ĥ' )/g
For maximum efficiency, the most frequent cases should be tested
first, but the use of ==# and ==? to enable (for instance) both Cx and
CX for Ĉ but only cx for ĉ requires lowercase to come first. (This
will identify cX as Ĉ but I think it can be tolerated.)
In Vim7+, I'd be tempted to tweak Tony's solution so it uses a
literal/in-line dict for the conversions, something like (broken into
multiple lines without the requisite "\" characters but could just as
easily be one line):
s/\c[scujgh]x/\=get({
'sx':'ŝ',
'cx':'ĉ',
'ux':'ŭ',
'jx':'ĵ',
'gx':'ĝ',
'hx':'ĥ',
'SX':'Ŝ',
'CX':'Ĉ',
'UX':'Ŭ',
'JX':'Ĵ',
'GX':'Ĝ',
'HX':'Ĥ'
}, submatch(0), '??default??')/g
(which should have the benefit of a linear lookup time, and is a lot
less hassle to maintain, IMHO)
You might have to do some case-folding with tolower()/toupper() on the
submatch(0), or include additional entries for other case-combinations.
-tim
IIUC, the usual practice (beyond lowercase) is to use CX, GX, HX etc.
in all-caps titles, and Cx, Gx, Hx, etc. for the initial capital of
words (proper names, first-in-sentence, etc.) where the other letters
are in lowercase. (ŭ is extremely rare at the start of a word; it
mostly occurs after a vowel. ĥ is rather infrequent in any position.)
For the default ("not found in table"), I'd just use submatch(0)
again, i.e., "don't change".
Oh, and for logarithmic time my solution could use dichotomic
searching (taking advantage of the fact that both the result_if_true
and the result_if_false of a ?: construct can in turn be ?:
expressions, each of which can, etc.) but for such a small set of
possibilities I don't think there would be a very big performance
gain.
I guess ĥ was once more commonly used but had been replaced by k or ĉ
in common words such as ĥemio or ĥino. The occurrence frequency of ŭ
should be a little bit more than that for ĥ.
ŭ after vowel is quite frequent: laŭ (according to), preskaŭ (almost),
hodiaŭ (today), eŭfonio (euphony), poŭpo (poop [of a ship]), etc. The
Academy has condoned the replacemenbt of -rĥ- by -rk- (Appendix 8 to the
list of official radicals); in other words usage may vary (e.g. ĥoro vs.
koruso for English "choir" [singing company]; for the choir of a church
[part of the building] I suppose ĥorejo or maybe korusejo would be used).
Just in the danger of far too off-topic, how does esperanto handle
foreign proper name for the accusative case. eg.
Einstein estimas Bohnn
how to tell who is the agent and who is the direct object?
Either Esperantize the whole word according to established forms or to
Rule 15 of the Fundamenta Gramatiko ("En Nederlando mi vizitis
Mastriĥton, Hagon, Roterdamon, Amsterdamon, sed ne Groningon") or add
-on (for a substantive) to the object ("Einstein estimas Bohn-on", if it
is about someone named Bohn), if there is a risk of ambiguity. If the
presence of an adjective, or of several names in apposition, avoids
ambiguity, then the un-Esperantized name may remain unchanged: Johanon
Sebastianon Bach; Bruegel la Maljunan.
Best regards,
Tony.
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