Hello folks,
I've put my fears aside and started working on a PSEP. It isn't good
enough (even as a draft) to submit but I will talk about it anyway.
It started as a proposal to change the way the QFile::open method is
used, but expanded to describe changes to all I/O operations.
The QFile::open method returns a boolean indicating the success or
failure of the I/O operation. In case of failure the user must call
QFile::error method to know what happened. Human readable information
is available through the inherited QIODevice::errorString method.
Compare this to opening a file with Python regular functions:
try:
fd = open('/tmp/file.txt', 'r')
except IOError:
...
With the changes proposed on the PSEP we would use the QFile bindings this way:
try:
fd = QFile('/tmp/file.txt')
fd.open(QFile.ReadOnly | QFile.Text)
except IOError:
...
The information contained in the exception could be gathered from
QFile::error and QIODevice::errorString.
Other candidates are QIODevice::read and QIODevice::write.
This is all for the moment.
Comments are more than welcome.
Cheers,
--
Marcelo Lira dos Santos
INdT - Instituto Nokia de Tecnologia
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