Although the docs claim that guess_lexer_for_filename will fall back
to using file data, my ubuntu 7.10 pygments library seems to ignore
the text argument. So call guess_lexer explicitly on failure.
This is needed in case util._encoding and hgweb.encoding conflict.
Extreme example:
HGENCODING=UTF-8
[web]
encoding = ascii
Note:
display of files whose encoding differs from HGENCODING or hgweb.encoding
behaves not exactly the same way as with highlight turned off as replacement
chars are either converted or replaced.
Try to avoid UnicodeDecodeError by:
- encoding to local
- passing util._encoding as lexer input encoding
- passing hgweb.encoding as formatter output encoding
