Is it possible in C++ to replace part of a string with another string? Basically, I would like to do this: QString string(“hello $name”); string.replace(“$name”, “Somename”); But I would like to use the Standard C++ libraries. 16 Answers 16
I have a 2D NumPy array and would like to replace all values in it greater than or equal to a threshold T with 255.0. To my knowledge, the most fundamental way would be: shape = arr.shape result = np.zeros(shape) for x in range(0, shape[0]): for y in range(0, shape[1]): if arr[x, y] >= T: … Read more
In postgresql, how do I replace all instances of a string within a database column? Say I want to replace all instances of cat with dog, for example. What’s the best way to do this? 4 Answers 4
I’m trying to replace multiple words in a string with multiple other words. The string is “I have a cat, a dog, and a goat.” However, this does not produce “I have a dog, a goat, and a cat”, but instead it produces “I have a cat, a cat, and a cat”. Is it possible … Read more
I need to replace a space ( ) with a dot (.) in a string in bash. I think this would be pretty simple, but I’m new so I can’t figure out how to modify a similar example for this use. 7 Answers 7
What’s the difference between java.lang.String ‘s replace() and replaceAll() methods, other than later uses regex? For simple substitutions like, replace . with / , is there any difference? 13 Answers 13
What MySQL query will do a text search and replace in one particular field in a table? I.e. search for foo and replace with bar so a record with a field with the value hello foo becomes hello bar. 7 Answers 7
Is there a convenience method to strip any leading or trailing spaces from a Java String? Something like: String myString = ” keep this “; String stripppedString = myString.strip(); System.out.println(“no spaces:” + strippedString); Result: no spaces:keep this myString.replace(” “,””) would replace the space between keep and this. 8 Answers 8
I run this command to find and replace all occurrences of ‘apple’ with ‘orange’ in all files in root of my site: find ./ -exec sed -i ‘s/apple/orange/g’ {} \; But it doesn’t go through sub directories. What is wrong with this command? Here are some lines of output of find ./: ./index.php ./header.php ./fpd … Read more
I want to add * to the end of each line in Vim. I tried the code unsuccessfully :%s/\n/*\n/g 10 Answers 10
