How to fix error stray @ in program?
I seem to have a stray "@" in the "istream" library.
See also questions close to this topic
generate regular expressions from a list of strings
I am reading something from regex format, expands it and writing it out. This list can become huge while writing it out.
While writing it out, I do not have the original regex data. So, I will have to create regexes out of the strings which I have.
A couple of cases while reading and writing:
Say, read regular expression is:
Since 'abc' can have only 'A', 'B', 'C', 'D'(Have this list with me), Above would be translated to list of strings as
"abc/A", "abc/B", "abc/C", "abc/D" -- 1
Say, another read regular expression is:
Since 'def' can have only 'x', 'y', 'x'(Have this list with me), Above would be translated to list of strings as
"def/x/A", "def/x/A", "def/x/A" -- 2
I have already said that I do not have original regular expressions now. All I have is list of strings. I will have to create regexes out of statements number 1 and 2.
From number 1, I should get
From number 2, I should get
which are the original.
Question: Which data structure would be efficient to solve this problem. I have thought of using tries & Aho–Corasick algorithm but could not get a clear solution at top of my head till now.
I would be happy to expand the question more in case it is not clear. Please consider that * will not match /, //, or anything except characters.
qt - How to prerender a QListView and it´s model
Hi i´m trying to preload/prerender my QList Views on the Load of a Document. While the Document is not that much data it loads data from 5 CSV tables to a QStringListModel and sets it to a QListView. All these QListViews are in a different tab of my "main" QTabWidget. At the moment i have a small freeze on the selection of a new Tab because the QListView loads its ViewModel. Is there a way to load the Data to the view on some signal? The size of my GUI is fixed.
QT equivalent to winforms OnPaintBackground
I'm rendering to my QT window using DirectX, works great until I start adding controls. Then they flicker as directx draws over them. The solution in winforms is do the rendering in OnPaintBackground of the form but I haven't found an equivalent in QT. Is there something similiar or can it be done in a better way?
I'm thinking about rendering to a texture and then somehow converting that to pixmap, which I then draw in paintEvent().
It's important to me to be able to place buttons, panels and other controls on top of what's being rendered (in realtime).