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I am reading a name from a file which I then use to name the window. However, it will not allow me to do that since it requires an ASCII character string . I can however do something like this directly
glutCreateWindow("StackOverflow").
Isn't this also a ASCII character string? Why am I able to do this but not something like this:
string x = "stack";
glutCreateWindow(x);
Is there a way to cast "x" to meet my needs?
Use the std::string::c_str() method:
std::string x = "stack";
glutCreateWindow(x.c_str());
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In Ruby, I want to see if user input contains any letter in the alphabet.
I have tried using contains and include?, but neither of these worked.
See String#include?
For example:
myString.include? 'a'
Similar to the comment from Cary: use a regular expression (regexp):
puts ‘matches’ if in_str =~ /[A-Za-z]/
See also: https://ruby-doc.org/core-2.7.1/Regexp.html
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I can't figure out a way to pull out two numbers in a string and save them in a different variable in classic asp.
The string is:
"\1800_411.pdf.log"
All I was trying to do is to save the first number which is 1800 in a variable and save the 411 in a different variable
What about:
(\d+)_(\d+)
This would save them into two capturing groups. See here: https://regex101.com/r/v83Zbt/1
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My code looks fine to me, but I'm getting a syntax error in my for loop. Does anyone know why this would be the case? I've included my code below:
def printLine(numberOfDots):
dots = 0
for x in range numberOfDots:
dots += 1
printDots = print("." * dots)
return printDots
printLine(20)
range is a function, so you should use range(numberOfDots) instead of range numberOfDots.
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str=str+(char)(newno+'0')
str+=newno+'0'
statement(1) is showing TLE whereas statement(2) does not.
The two statements are not at all identical. The first statement creates a new temporary string with newno+'0' appended, copies back the new string to str, and destroys the temporary object. The second can operate in place, if there is room in str.
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I have a large chunk of data and would like to extract a value of a particular field using TCL regexp.
ip="1.2.3.4" protocol="SFTP" username="abcd"
Need to extract the word SFTP without double quotes, the former and later fields can be ip,username or something else. So regexp has to use the word protocol as reference.
In this case, I'd use:
regexp {\yprotocol="(.*?)"} $theString -> theProtocol
However, if this is parsing XML then I'd actually use an XML handling extension like tDOM.