package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?<matrix>(?:\[[^\]]+\])|(?:<[^>]+>)|(?:\{[^\}]+\}))|(?<function>\w+(?=\())|(\d+[eE][-+]\d+)|(?<operand>\w+)|(?<operator>[-+\/*%])|(?<symbol>.)`)
var str = `2!+atan2(3+9,2+3)-2*PI+3/3-9-12%3*sin(9-9)+(2+6/2)
2+3-9*[{2+3,2,6},{7,2+3,2+3i}]+9*6
{[2,5][9/8,func(2+3)]}+9*8/5
<[2,9,2.36][2,3,2!]>*<[2,3,9][23+9*8/8,2,3]>`
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/