In Java, how do I parse XML as a String instead of a file?
I have this function in my code base, this should work for you. also see this similar question
string
What is the canonical way to trim a string in Ruby without creating a new string?
I guess what you want is: The #strip! method will return nil if it didn’t strip anything, and the variable itself if it was stripped. According to Ruby standards, a method suffixed with an exclamation mark changes the variable in place. Hope this helps. Update: This is output from irb to demonstrate:
Unrecognized escape sequence for path string containing backslashes
You can either use a double backslash each time or use the @ symbol
How to convert a string to lower or upper case in Ruby
Ruby has a few methods for changing the case of strings. To convert to lowercase, use downcase: Similarly, upcase capitalizes every letter and capitalize capitalizes the first letter of the string but lowercases the rest: If you want to modify a string in place, you can add an exclamation point to any of those methods: … Read more
When to use %r instead of %s in Python? [duplicate]
The %s specifier converts the object using str(), and %r converts it using repr(). For some objects such as integers, they yield the same result, but repr() is special in that (for types where this is possible) it conventionally returns a result that is valid Python syntax, which could be used to unambiguously recreate the … Read more
Convert Char to String in C
To answer the question without reading too much else into it i would You could use the second line in a loop with what ever other string operations you want to keep using char’s as strings.
Remove empty array elements
As you’re dealing with an array of strings, you can simply use array_filter(), which conveniently handles all this for you: Keep in mind that if no callback is supplied, all entries of array equal to FALSE (see converting to boolean) will be removed. So if you need to preserve elements that are i.e. exact string … Read more
Find index of last occurrence of a substring in a string
Use .rfind(): Also don’t use str as variable name or you’ll shadow the built-in str().
How to find and replace string?
Replace first match Use a combination of std::string::find and std::string::replace. Find the first match: Replace the first match: A simple function for your convenience: Usage: Demo. Replace all matches Define this O(n) method using std::ostringstream as a buffer: Usage: Demo. Boost Alternatively, use boost::algorithm::replace_all: Usage:
Why does my program give “NULL used in arithmetic”
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Stack Overflow. Closed 7 years ago. I wrote the following; It worked correctly, but when I added the line at the end: It no longer works. Why?