Any way to avoid "x: 0.00001" to "x=1.0E-5"

[cndaimin]

My code:

public static void main(String[] args) throws Exception {
        Config conf = ConfigFactory.parseString("x: 0.00001");
        String rendered = conf.resolve().root().render();
        System.out.println(rendered);
    }

output is:
{
# String: 1
"x" : 1.0E-5
}
I prefer 0.00001 rather than 1.0E-5, so my question is how to prevent the transformation

[havocp]

The original text is known and used here:

config/config/src/main/java/com/typesafe/config/impl/ConfigNumber.java

Lines 30 to 33 in 40d0c40

	@Override
	String transformToString() {
	return originalText;
	}

But when rendering we convert to a double and use Double.toString here:

config/config/src/main/java/com/typesafe/config/impl/AbstractConfigValue.java

Lines 359 to 362 in 40d0c40

	protected void render(StringBuilder sb, int indent, boolean atRoot, ConfigRenderOptions options) {
	Object u = unwrapped();
	sb.append(u.toString());
	}

Overriding that render method in ConfigNumber to use originalText might work, as long as all originalText is valid JSON (I think it would be... but first question is whether tests still pass with this)

Note that there's no overall goal to preserve formatting when rendering, so in a case like this where it's easy maybe we want to do it, but any case where it's hard we would not. There's a separate not-very-complete API included called ConfigDocument to load docs while preserving the formatting.

[Emurus]

Is it possible to make transformToString public to get the original text?

[havocp]

I was thinking we could make the existing public method render() return the originalText

[Emurus]

Rather than return originalText itself, why not return transformToString()?

[havocp]

right, I mean that may be the detail of it. I haven’t dug in on it to see what might break.