golang remove characters (used for readability) in const string at compile time (spaces, \n and \t)

Question

Spaces are useful to indent urls, sql queries to make it more readable. Is there a way to remove characters from a const string at compile time in golang ?

ex: (runtime version)
const url = `https://example.com/path?
attr1=test
&attr2=test
`
// this is the code to be replaced
urlTrim := strings.Replace(
strings.Replace(url, "\n", "", -1)
)

Answer 1

Constant expressions cannot contain function calls (except a few built-in functions). So what you want cannot be done using a raw string literal.

If your goal with using multiple lines is just for readability, simply use multiple literals and concatenate them:

const url = "https://example.com/path?" +
    "attr1=test" +
    "&attr2=test"

Try it on the Go Playground.

See related question: Initialize const variable