golang Remove the specified repeated string

gistfile1.go

package main

import (
	"fmt"
)

func main() {
	s := `aaabccaad`
	u := "a"
	fmt.Printf("%s %s ===> %s \n", s, u, uniq(s, u))
	s = `hvafdaavhhaav`
	fmt.Printf("%s %s ===> %s \n", s, u, uniq(s, u))
	u = "h"
	fmt.Printf("%s %s ===> %s \n", s, u, uniq(s, u))
}

func uniq(s string, uniq string) string {
	var (
		old    uint8
		count  int
		result string
	)
	for i := 0; i < len(s); i++ {
		if string(s[i]) == uniq {
			count++
			if count == 1 && old != 0 {
				result += string(old)
			}
		} else {
			if count == 0 && old != 0 {
				result += string(old)
			}
			if count > 0 {
				result += string(old)
				count = 0
			}
		}
		old = s[i]
	}
	result += string(old)
	return result
}

vvaaabccaad

v,  i: 0 , count: 0  result:                      , old:
v,  i: 1 , count: 0  result: v                    , old:v
a,  i: 2 , count: 1  result: vv                   , old:v
a,  i: 3 , count: 2  result: vv                   , old:a
a,  i: 4 , count: 3  result: vv                   , old:a
b,  i: 5 , count: 0  result: vva                  , old:b
c,  i: 6 , count: 0  result: vvab                 , old:c
c,  i: 7 , count: 0  result: vvabc                , old:c
a,  i: 8 , count: 1  result: vvabcc               , old:a
a,  i: 9 , count: 2  result: vvabcc               , old:a
d,  i: 10, count: 0  result: vvabcca              , old:d

func uniqx(s string, uniq string) string {
	var (
		ans  string
		flag bool
	)
	flag = false
	for _, cur := range s {
		// 如果上一个是相同的，而且当前还是 uniq
		if flag == true && string(cur) == uniq {
			continue
		}
		// 判断是否一样
		if string(cur) != uniq {
			flag = false
		} else if string(cur) == uniq {
			flag = true
		}
		ans += string(cur)
	}
	return ans
}