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About 1,000 results for
while-statement
- Page 1
Re: Improve HAVING BY performance
Programming
Databases
2 Weeks Ago
by toneewa
… 8 sql::mysql::MySQL_Driver* driver; sql::Connection* con; sql::
Statement
* stmt; int ct = 0; int main(){ while(ct…quot;); con->setSchema("electronics"); // Create a
statement
stmt = con->createStatement(); auto start_time0 = std::chrono…
Re: Improve HAVING BY performance
Programming
Databases
2 Weeks Ago
by Biiim
… the same! That said, I mean't that the HAVING
statement
is like dumping your query result into a temp table…
Re: And so the cookie crumbles...
Community Center
Geeks' Lounge
3 Weeks Ago
by Dani
> My decision were based on the "arrogance" of some moderators, it seemed that the entire site moved away from being a community service to a "I am the boss, do as I say" environment. AndreRet, based on your [latest post](https://www.daniweb.com/programming/databases/threads/541622/improve-having-by-performance#post2296496…
Re: Why does Dell hate Linux so much?
Hardware and Software
Linux and Unix
2 Weeks Ago
by mickeydoodle
I've just acquired a Dell laptop, it seems to hate Linux! Touch pad doesn't work properly, Wireless won't connect and it's sooo slow! Works fine with Windows!
Extracting values from capturing groups in regex
Programming
Software Development
2 Months Ago
by Tom_45
…;\/td>', file) The file is created with a read()
statement
. The output should look like (236, "Roy", "…
Extracting values from a regex match
Programming
Software Development
2 Months Ago
by Tom_45
…;\/td>', file) The file is created with a read()
statement
. The output should look like (236, "Roy", "…
Why am getting different syntax errors when running a Python script
Programming
Software Development
2 Months Ago
by Tom_45
…, rank) names.append(item) #print(item)` On the re.findall
statement
, the error message invalid escape sequence on \d, so I…
Re: Why am getting different syntax errors when running a Python script
Programming
Software Development
2 Months Ago
by Tom_45
Finished the assignment and was able to work out the bugs I was encountering. In addition to the issues I mentioned in my last reply, I had several instances of not indenting properly so that statements like exit() were not executing because their indention made them part of an if
statement
.
Re: Extracting values from capturing groups in regex
Programming
Software Development
2 Months Ago
by Reverend Jim
For html = '<tr align="right"><td>236</td><td>Roy</td><td>Allyson</td>' pat = '<td>(.+?)</td>' then re.split(pat,html) returns ['<tr align="right">', '236', '', 'Roy', '', 'Allyson', ''] and re.split(pat,html)[1::2] will …
Re: Extracting values from a regex match
Programming
Software Development
2 Months Ago
by Reverend Jim
The trick is to use lazy matching which matches the shortest possible string. html = '<tr align="right"><td>236</td><td>Roy</td><td>Allyson</td>' pat = '<td>(.+?)</td>' then re.split(pat,html) returns ['<tr align="right">', '236', …
Re: Extracting values from capturing groups in regex
Programming
Software Development
2 Months Ago
by Tom_45
I'm not getting the results you presented, I'm getting the whole file not just the tr tags. The tr tags I used was just a subset of the entire file.
Re: Extracting values from capturing groups in regex
Programming
Software Development
2 Months Ago
by Reverend Jim
Just process the file line by line and apply the regular expression to particular lines. I can't give you an expression that matches only the lines you showed me with a guarantee that in matches nothing else without seeing the entire file.
Re: Extracting values from capturing groups in regex
Programming
Software Development
2 Months Ago
by Reverend Jim
You can either read the entire file into a list, then filter that list, or you could process it line by line and process each matching line. For example (using my file) for line in open('usblog.txt'): if '2024-01-24' in line: print(line) or text = open('usblog.txt').readlines() for line in [x for x in text if…
Re: Extracting values from a regex match
Programming
Software Development
2 Months Ago
by pritaeas
Sidenote: If you want to learn, understand and experiment with regexes I can highly recommend RegexBuddy.
Re: Extracting values from capturing groups in regex
Programming
Software Development
2 Months Ago
by Tom_45
It's a long one, but here it is. <head><title>Popular Baby Names</title> <meta name="dc.language" scheme="ISO639-2" content="eng"> <meta name="dc.creator" content="OACT"> <meta name="lead_content_manager" content="JeffK"&…
Re: Extracting values from capturing groups in regex
Programming
Software Development
2 Months Ago
by Reverend Jim
Try import re pat = '<td>(.+?)</td>' for line in open('yourfile.html'): if line.startswith('<tr align="right"><td>'): print(re.findall(pat,line)) I realized that findall is cleaner than split. You might want to have a look at [this regex online tool](https://www…
Re: Why am getting different syntax errors when running a Python script
Programming
Software Development
2 Months Ago
by Tom_45
After I posted this question I noticed that I was missing the raw string indicator and the capture group enclosing parenthesis on the findall, which explains the subscripting error. So, hold off on the answers for now. I'm still having other issues with multiple file runs, though.
Re: Extracting values from a regex match
Programming
Software Development
2 Months Ago
by Reverend Jim
Also [autoregex](https://www.autoregex.xyz/)
Re: Extracting values from capturing groups in regex
Programming
Software Development
2 Months Ago
by AndreRet
Your main issue is with the way you're trying to capture the values inside the 'td' tags. Also, you should consider using non-greedy quantifiers - [Minimal or non-greedy quantifiers](Regular expressions are generally considered greedy because an expression with repetitions will attempt to match as many characters as possible. The asterisk (*), plus…
Re: Extracting values from a regex match
Programming
Software Development
2 Months Ago
by AndreRet
Same question, different post - [Extracting values from capturing groups in rege](https://www.daniweb.com/programming/software-development/threads/541420/extracting-values-from-capturing-groups-in-regex)
Re: Extracting values from capturing groups in regex
Programming
Software Development
2 Months Ago
by Tom_45
Issue resolved
Re: Extracting values from a regex match
Programming
Software Development
1 Month Ago
by Tom_45
Question has been answered. The correct pattern is: matches = re.findall(r'<td>(\d+)+<\/td><td>(\w+)<\/td><td>(\w+)', file)
Problem with webpage connectivity
Programming
Web Development
13 Years Ago
by swornavidhya_m
Statement
: Connection with server takes a long time and provides "…
scientific or simple calculator
Programming
2 Years Ago
by Husnain_6
statement
: write a code in which user first select what type …
Re: Clears some fundamentals
Programming
Software Development
12 Years Ago
by limaulime
statement
1: assign memory location for variable x, now variable x contains "garbage" value.
statement
2: assign value to variable x which is 34.
Re: Conn Stmt
Programming
Software Development
14 Years Ago
by jeniferandrews
Statement
is used when u have fixed query... eg: select * from … core query...this kind of querying should be avoided... Prepared
Statement
is used in case of dynamic data retrieval...i.e… our case we have only ?mark so no complications] Callable
statement
is used for procedure calling or function calling... i.e…
Re: Database not being populated....
Programming
Software Development
19 Years Ago
by tigerxx
**************************************
Statement
statement1 = con.createStatement(); **************************************** here is the problem u hav to give the query inside createStatement() like
Statement
statement1 = con.createStatement(string); then it'll work
Re: Help Please!!
Programming
Software Development
14 Years Ago
by kvprajapati
Statement
is written incorrectly, pop = 4 * double pow(e, t); pow is a static method of java.lang.Math class and you have to write the
statement
as follows: pop = 4 * Math.pow(e,t);
Re: display array element with passing value...no undesstand~help
Programming
Software Development
16 Years Ago
by bobei89
statement
11th and 38th...i think that for some sort to arrange the value printed. But no understand how it work. Thx for reading my post
Re: Generating a random number without repetition
Programming
Software Development
13 Years Ago
by abhimanipal
statement
20 is unnecessary. You are anyway setting/ ignoring the value of num in the if else block.
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