Am 28.09.2008 um 10:12 schrieb Bert Freudenberg:
Am 28.09.2008 um 09:52 schrieb Randal L. Schwartz:
This is an expensive way to build a string. #collect: would be
better:
aString collect: [:char | char xmlEscaped].
Internally, that uses a Stream, which extends itself nicely as new
data
appears. In your version, the early string data is getting
repeatedly copied
to make each new string. Ouch.
Err, #collect: constructs a string character by character, not from
other strings. Double-ouch ;)
Guess I have to provide an alternative:
#('&' '&' '<' '<' '>' '>' '''' ''' '"' '"')
pairsDo: [:c :s| string := string copyReplaceAll: c with: s].
which is invariant under pretty-printing so must be good ;)
(this is the same approach as in String>>asHTML)
- Bert -
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