func main() {
newlist := strconv.AppendQuoteRune(make([]byte, 0), 'a')
fmt.Println(string(newlist))
newlist = strconv.AppendQuoteRune(make([]byte, 0), '\'')
fmt.Println(string(newlist))
newlist = strconv.AppendQuoteRune(make([]byte, 0), '中')
fmt.Println(string(newlist))
}
func ExampleAppendQuoteRune() {
b := []byte("rune:")
b = strconv.AppendQuoteRune(b, '☺')
fmt.Println(string(b))
// Output:
// rune:'☺'
}
// fmt_qc formats the integer as a single-quoted, escaped Go character constant.
// If the character is not valid Unicode, it will print '\ufffd'.
func (f *fmt) fmt_qc(c int64) {
var quoted []byte
if f.plus {
quoted = strconv.AppendQuoteRuneToASCII(f.intbuf[0:0], rune(c))
} else {
quoted = strconv.AppendQuoteRune(f.intbuf[0:0], rune(c))
}
f.pad(quoted)
}
func AppendTest() {
//Append 系列函数将整数等转换为字符串后，添加到现有的字节数组中。
str := make([]byte, 0, 100)
str = strconv.AppendInt(str, 4567, 10)
str = strconv.AppendBool(str, false)
str = strconv.AppendQuote(str, "abcdefg")
str = strconv.AppendQuoteRune(str, '单')
fmt.Println(string(str))
}
// fmt_qc formats an integer as a single-quoted, escaped Go character constant.
// If the character is not valid Unicode, it will print '\ufffd'.
func (f *fmt) fmt_qc(c uint64) {
r := rune(c)
if c > utf8.MaxRune {
r = utf8.RuneError
}
buf := f.intbuf[:0]
if f.plus {
f.pad(strconv.AppendQuoteRuneToASCII(buf, r))
} else {
f.pad(strconv.AppendQuoteRune(buf, r))
}
}
func Teststrings() {
//字符串s中是否包含substr，返回bool值
fmt.Println(strings.Contains("seafood", "foo"))
fmt.Println(strings.Contains("seafood", "bar"))
fmt.Println(strings.Contains("seafood", ""))
fmt.Println(strings.Contains("", ""))
s := []string{"foo", "bar", "baz"}
//字符串链接，把slice a通过sep链接起来
fmt.Println(strings.Join(s, ", "))
//在字符串s中查找sep所在的位置，返回位置值，找不到返回-1
fmt.Println(strings.Index("chicken", "ken"))
fmt.Println(strings.Index("chicken", "dmr"))
//重复s字符串count次，最后返回重复的字符串
fmt.Println("ba" + strings.Repeat("na", 2))
//在s字符串中，把old字符串替换为new字符串，n表示替换的次数，小于0表示全部替换
fmt.Println(strings.Replace("oink oink oink", "k", "ky", 2))
fmt.Println(strings.Replace("oink oink oink", "oink", "moo", -1))
//把s字符串按照sep分割，返回slice
fmt.Printf("%q\n", strings.Split("a,b,c", ","))
fmt.Printf("%q\n", strings.Split("a man a plan a canal panama", "a "))
fmt.Printf("%q\n", strings.Split(" xyz ", ""))
fmt.Printf("%q\n", strings.Split("", "Bernardo O'Higgins"))
//在s字符串中去除cutset指定的字符串
fmt.Printf("[%q]\n", strings.Trim(" !!! Achtung !!! ", "! "))
//去除s字符串的空格符，并且按照空格分割返回slice
fmt.Printf("Fields are: %q\n", strings.Fields(" foo bar baz "))
//Append 系列函数将整数等转换为字符串后，添加到现有的字节数组中。
str := make([]byte, 0, 100)
str = strconv.AppendInt(str, 4567, 10)
str = strconv.AppendBool(str, false)
str = strconv.AppendQuote(str, "abcdefg")
str = strconv.AppendQuoteRune(str, '单')
fmt.Println(string(str))
//Format 系列函数把其他类型的转换为字符串
a := strconv.FormatBool(false)
b := strconv.FormatFloat(123.23, 'g', 12, 64)
c := strconv.FormatInt(1234, 10)
d := strconv.FormatUint(12345, 10)
e := strconv.Itoa(1023)
fmt.Println(a, b, c, d, e)
}
func main() {
str := make([]byte, 0, 100)
str = strconv.AppendInt(str, 4567, 10)
str = strconv.AppendBool(str, false)
str = strconv.AppendQuote(str, "adcdef")
str = strconv.AppendQuoteRune(str, '中')
fmt.Println(string(str))
fl := strconv.FormatFloat(123.23, 'g', 12, 64)
fmt.Println(fl)
ui, err := strconv.ParseUint("12345", 10, 64)
if err != nil {
fmt.Println(err)
}
fmt.Println(ui + 10)
}
func processString() {
str := make([]byte, 0, 100)
// str := ""
fmt.Println(str)
str = strconv.AppendInt(str, 4567, 10)
str = strconv.AppendBool(str, false)
str = strconv.AppendQuote(str, "abcde")
str = strconv.AppendQuoteRune(str, '周')
fmt.Println(str)
fmt.Println(string(str))
str1 := strconv.FormatBool(false)
fmt.Println(str1)
str1 = strings.Repeat(str1, 2)
fmt.Println(str1)
fmt.Println(strings.Contains(str1, "al"))
fmt.Println(strings.Index(str1, "al"))
fmt.Println(strings.Trim("!a james May !a", "!a"))
}
func main() {
// Append , 转换并添加到现有字符串
str := make([]byte, 0, 1000)
str = strconv.AppendInt(str, 4567, 10)
str = strconv.AppendBool(str, false)
str = strconv.AppendQuote(str, "abcdefg")
str = strconv.AppendQuoteRune(str, '单')
fmt.Println(string(str))
// Format 把其他类型转成字符串
a := strconv.FormatBool(false)
b := strconv.FormatFloat(123.23, 'g', 12, 64)
c := strconv.FormatInt(1234, 10)
d := strconv.FormatUint(12345, 10)
e := strconv.Itoa(1023)
fmt.Println(a, b, c, d, e)
// Parse 把字符串转为其他类型
a1, err := strconv.ParseBool("false")
if err != nil {
fmt.Println(err)
} else {
fmt.Println(a1)
}
b1, err := strconv.ParseFloat("123.23", 64)
c1, err := strconv.ParseInt("1234", 10, 64)
d1, err := strconv.ParseUint("12345", 10, 64)
fmt.Println(a1, b1, c1, d1)
}
func Backspace(g *gocui.Gui, v *gocui.View) error {
cx, cy := v.Cursor()
spaceCount := 0
var s []byte
for i := 0; i < 5; i++ {
rune, err := g.Rune(cx+(6-i), cy)
if err == nil {
res := strconv.AppendQuoteRune(s, rune)
if string(res) == "' '" {
spaceCount++
}
}
if spaceCount == 4 {
for c := 1; c < 4; c++ {
v.DeleteRune(cx-c, cy)
v.SetCursor(cx-c, cy)
}
}
}
return nil
}
func (bs Bytes) AppendQuoteRune(r rune) Bytes {
t := strconv.AppendQuoteRune([]byte(bs), r)
return Bytes(t)
}