Switch to new emoji library kyokomi/emoji (#948)

1 files changed, 133 insertions, 0 deletions

diff --git a/vendor/github.com/matterbridge/emoji/emoji.go b/vendor/github.com/matterbridge/emoji/emoji.go
new file mode 100644
index 00000000..28ac848b
--- /dev/null
+++ b/vendor/github.com/matterbridge/emoji/emoji.go
@@ -0,0 +1,133 @@
+// Package emoji terminal output.
+package emoji
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"regexp"
+	"unicode"
+)
+
+//go:generate generateEmojiCodeMap -pkg emoji
+
+// Replace Padding character for emoji.
+const (
+	ReplacePadding = ""
+)
+
+// CodeMap gets the underlying map of emoji.
+func CodeMap() map[string]string {
+	return emojiCodeMap
+}
+
+// regular expression that matches :flag-[countrycode]:
+var flagRegexp = regexp.MustCompile(":flag-([a-z]{2}):")
+
+func emojize(x string) string {
+	str, ok := emojiCodeMap[x]
+	if ok {
+		return str + ReplacePadding
+	}
+	if match := flagRegexp.FindStringSubmatch(x); len(match) == 2 {
+		return regionalIndicator(match[1][0]) + regionalIndicator(match[1][1])
+	}
+	return x
+}
+
+// regionalIndicator maps a lowercase letter to a unicode regional indicator
+func regionalIndicator(i byte) string {
+	return string('\U0001F1E6' + rune(i) - 'a')
+}
+
+func replaseEmoji(input *bytes.Buffer) string {
+	emoji := bytes.NewBufferString(":")
+	for {
+		i, _, err := input.ReadRune()
+		if err != nil {
+			// not replase
+			return emoji.String()
+		}
+
+		if i == ':' && emoji.Len() == 1 {
+			return emoji.String() + replaseEmoji(input)
+		}
+
+		emoji.WriteRune(i)
+		switch {
+		case unicode.IsSpace(i):
+			return emoji.String()
+		case i == ':':
+			return emojize(emoji.String())
+		}
+	}
+}
+
+func compile(x string) string {
+	if x == "" {
+		return ""
+	}
+
+	input := bytes.NewBufferString(x)
+	output := bytes.NewBufferString("")
+
+	for {
+		i, _, err := input.ReadRune()
+		if err != nil {
+			break
+		}
+		switch i {
+		default:
+			output.WriteRune(i)
+		case ':':
+			output.WriteString(replaseEmoji(input))
+		}
+	}
+	return output.String()
+}
+
+// Print is fmt.Print which supports emoji
+func Print(a ...interface{}) (int, error) {
+	return fmt.Print(compile(fmt.Sprint(a...)))
+}
+
+// Println is fmt.Println which supports emoji
+func Println(a ...interface{}) (int, error) {
+	return fmt.Println(compile(fmt.Sprint(a...)))
+}
+
+// Printf is fmt.Printf which supports emoji
+func Printf(format string, a ...interface{}) (int, error) {
+	return fmt.Printf(compile(fmt.Sprintf(format, a...)))
+}
+
+// Fprint is fmt.Fprint which supports emoji
+func Fprint(w io.Writer, a ...interface{}) (int, error) {
+	return fmt.Fprint(w, compile(fmt.Sprint(a...)))
+}
+
+// Fprintln is fmt.Fprintln which supports emoji
+func Fprintln(w io.Writer, a ...interface{}) (int, error) {
+	return fmt.Fprintln(w, compile(fmt.Sprint(a...)))
+}
+
+// Fprintf is fmt.Fprintf which supports emoji
+func Fprintf(w io.Writer, format string, a ...interface{}) (int, error) {
+	return fmt.Fprint(w, compile(fmt.Sprintf(format, a...)))
+}
+
+// Sprint is fmt.Sprint which supports emoji
+func Sprint(a ...interface{}) string {
+	return compile(fmt.Sprint(a...))
+}
+
+// Sprintf is fmt.Sprintf which supports emoji
+func Sprintf(format string, a ...interface{}) string {
+	return compile(fmt.Sprintf(format, a...))
+}
+
+// Errorf is fmt.Errorf which supports emoji
+func Errorf(format string, a ...interface{}) error {
+	return errors.New(compile(Sprintf(format, a...)))
+}