package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`\{(?:(?:\{(?:(?:\{(?:[^{}])*\})|(?:[^{}]))*\})|(?:[^{}]))*\}`)
var str = `captures up to singly-nested blocks:
p{1} = \{(?:[^{}])*\}
int main() {
return 0;
}
captures up to doubly-nested:
p{2} = \{(?:(?:p{1})|(?:[^{}]))*\}
...or...
p{2} = \{(?:(?:\{(?:[^{}])*\})|(?:[^{}]))*\}
void more_complex_fxn(int z) {
int x = z / 9;
if (x > 3) {
do_something;
x += 5;
}
}
Following the pattern set above...
up to triply-nested:
p{3} = \{(?:(?:p{2})|(?:[^{}]))*\}
...or...
p{3} = \{(?:(?:\{(?:(?:\{(?:[^{}])*\})|(?:[^{}]))*\})|(?:[^{}]))*\}
double so_many_blocks(double x) {
double y = x;
while(y > 4) {
if (y < 6) {
y -= 0.3;
} else {
y -= 0.5;
}
}
return y;
}`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/