Share some string interpolation code

cocos2d-x C++
1

I use it for quick and dirty animation loading. Really convenient when it comes to generating a list of path strings. Hopefully it could save you some time.
Github: interpStr

It’s capable of generating the following string variations.

Example 
Input: /this/is/a/string[01-03].png

Return:
/this/is/a/string01.png
/this/is/a/string02.png
/this/is/a/string03.png

Rules like [1-3], [01-10], [01,02,03-10,11,12] will all give expected output.

2 Likes
2

Nice idea, I’ve been writing config files recently for my pet project and currently list each asset variation separately. I don’t have more than 5 in any case but this is a much cleaner approach. The only downside I can think of is when you want to associate more information with an asset, like an animation or a colour tint for example. But for the case where you just want to list some variations shorthand this is perfect :stuck_out_tongue:

And of course your restricted to naming your variations with numbers instead of something more descriptive like: red car, blue car, green car, etc. But this is a minor issue.

Thanks for sharing!

3

Hey thanks! I added a PBI to my backlog a couple of days ago to do almost exactly this!
Saves me some time - I’ll go ave a beer instead :smile:

4

I just stopped at my needs. But it definitely can be improved :smiley:

5

Glad it can help.

6

Hi,

** EDIT** I made the pull request finally!

I tried to make a change and submit a pull request but am getting permission errors, so I’ve given up (life’s too short to spend hours struggling with supposedly easy-to-use GitHub!!)

Here’s teh code I changed

std::vector<std::string> expand;

for(const Range& r : rangeList) {
    int diff = 1;
    if (r.begin>r.end)
        diff = -1;
    int i = r.begin;
    do{
        std::stringstream ss;
        ss << std::setw(r.padding+1) << std::setfill('0') << std::to_string(i);
        std::string out = std::regex_replace(path, re, ss.str());
        expand.push_back(out);
        i += diff;
    } while (i != r.end);
}

Which adds the ability to use ranges like [9-1] so it is in reverse order - which is something I needed.

7

Commented on your pull request.

8

I am embarrassed by my original code :blush:
Corrected & added a test and pushed
Hopefully this is better !