[luatex] problem with slnunicode's find

[Stephan Hennig]

Am 03.03.2010 11:49, schrieb Stephan Hennig:

> Here is an example:

A revisited example (a pair of parentheses was missing in line 6):

str = "ä#Ö"
print("str: ", str)

-- This considers 'Ö' a single upper-case letter, i.e.,
-- 'Ö' is one (character) long.
print('match("(%u)"): ', unicode.utf8.match(str, "(%u)"))
-- Like len does.
print('len("Ö"): ', unicode.utf8.len("Ö"))

-- This returns the byte position of 'Ö' in the string, i.e.,
-- it considers the length of 'ä' as two (bytes).
print('match("()%u"): ', unicode.utf8.match(str, "()%u"))
-- Unlike len.
print('len("ä"): ', unicode.utf8.len("ä"))


 > >texlua empty.lua
 > str:    ä#Ö
 > match("(%u)"):    Ö
 > len("Ö"):      1
 > match("()%u"):  4
 > len("ä"):      1

Best regards,
Stephan Hennig