On 12/10/13 11:52, Phil Thompson wrote:
So I need to call SCI_SETWORDCHARS when a lexer is set using the value
returned by the lexer's wordCharacters() method.
Is this likely to cause any unforeseen problems?
As usual with Scintilla, the main source of potential problems is
single-byte vs multi-byte encodings. For latin-1, any byte in the range
0-255 can be set as a word character. But for utf-8, only the ascii
range is relevant - all unicode characters above 127 are always treated
as word characters, regardless of what has been set using SCI_SETWORDCHARS.
However, Scintilla's default set of word characters (i.e. those set via
SCI_SETCHARSDEFAULT) includes the standard alphanumerics and underscore,
*plus* all the characters in the range 128-255 (regardless of the
code-page setting).
So, assuming the current lexer wordCharacters functions only ever return
ascii, there is some potential for changes in behaviour if QScintilla is
being used in *latin-1* mode (utf-8 mode should be unaffected).
The only other potential issue I can think of at the moment, is that
setting the word characters automatically resets the whitespace and
punctuation characters to their default values.
--
Regards
Baz Walter
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