如何在golang中使用正则表达式替换字符串中的表情符号
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【中文标题】如何在golang中使用正则表达式替换字符串中的表情符号【英文标题】：How to replace emoji characters in string using regex in golang 【发布时间】：2022-01-04 21:42:13 【问题描述】：我想用golang中的正则表达式替换字符串中的所有表情符号。
像这样：
这是一个很好的笑话???????????? ？？？ -> 开个玩笑[e][e][e] [e]
【问题讨论】：
您希望支持哪种表情符号？你知道 Unicode 范围吗？试试this one @WiktorStribiżew 特别感谢。这就是我想要的， 【参考方案1】：您似乎想要匹配一组特定的表情符号。
使用
package main
import (
"fmt"
"regexp"
)
func main()
var emojiRx = regexp.MustCompile(`[\x1F600-\x1F6FF|[\x2600-\x26FF]`)
var s = emojiRx.ReplaceAllString("Thats a nice joke ??? ?", `[e]`)
fmt.Println(s)
请参阅Go demo。
注意：
[\x1F600-\x1F64F] - 匹配表情符号
[\x1F680-\x1F6FF] - 匹配运输表情符号等。
匹配Emoji 14.0 Standard 中列出的所有表情符号的正则表达式，您可以使用
emojiRx := regexp.MustCompile(`[#*0-9]\xFE0F?\x20E3|©\xFE0F?|[®\x203C\x2049\x2122\x2139\x2194-\x2199\x21A9\x21AA]\xFE0F?|[\x231A\x231B]|[\x2328\x23CF]\xFE0F?|[\x23E9-\x23EC]|[\x23ED-\x23EF]\xFE0F?|\x23F0|[\x23F1\x23F2]\xFE0F?|\x23F3|[\x23F8-\x23FA\x24C2\x25AA\x25AB\x25B6\x25C0\x25FB\x25FC]\xFE0F?|[\x25FD\x25FE]|[\x2600-\x2604\x260E\x2611]\xFE0F?|[\x2614\x2615]|\x2618\xFE0F?|\x261D[\xFE0F\x1F3FB-\x1F3FF]?|[\x2620\x2622\x2623\x2626\x262A\x262E\x262F\x2638-\x263A\x2640\x2642]\xFE0F?|[\x2648-\x2653]|[\x265F\x2660\x2663\x2665\x2666\x2668\x267B\x267E]\xFE0F?|\x267F|\x2692\xFE0F?|\x2693|[\x2694-\x2697\x2699\x269B\x269C\x26A0]\xFE0F?|\x26A1|\x26A7\xFE0F?|[\x26AA\x26AB]|[\x26B0\x26B1]\xFE0F?|[\x26BD\x26BE\x26C4\x26C5]|\x26C8\xFE0F?|\x26CE|[\x26CF\x26D1\x26D3]\xFE0F?|\x26D4|\x26E9\xFE0F?|\x26EA|[\x26F0\x26F1]\xFE0F?|[\x26F2\x26F3]|\x26F4\xFE0F?|\x26F5|[\x26F7\x26F8]\xFE0F?|\x26F9(?:\x200D[\x2640\x2642]\xFE0F?|[\xFE0F\x1F3FB-\x1F3FF](?:\x200D[\x2640\x2642]\xFE0F?)?)?|[\x26FA\x26FD]|\x2702\xFE0F?|\x2705|[\x2708\x2709]\xFE0F?|[\x270A\x270B][\x1F3FB-\x1F3FF]?|[\x270C\x270D][\xFE0F\x1F3FB-\x1F3FF]?|\x270F\xFE0F?|[\x2712\x2714\x2716\x271D\x2721]\xFE0F?|\x2728|[\x2733\x2734\x2744\x2747]\xFE0F?|[\x274C\x274E\x2753-\x2755\x2757]|\x2763\xFE0F?|\x2764(?:\x200D[\x1F525\x1FA79]|\xFE0F(?:\x200D[\x1F525\x1FA79])?)?|[\x2795-\x2797]|\x27A1\xFE0F?|[\x27B0\x27BF]|[\x2934\x2935\x2B05-\x2B07]\xFE0F?|[\x2B1B\x2B1C\x2B50\x2B55]|[\x3030\x303D\x3297\x3299]\xFE0F?|[\x1F004\x1F0CF]|[\x1F170\x1F171\x1F17E\x1F17F]\xFE0F?|[\x1F18E\x1F191-\x1F19A]|\x1F1E6[\x1F1E8-\x1F1EC\x1F1EE\x1F1F1\x1F1F2\x1F1F4\x1F1F6-\x1F1FA\x1F1FC\x1F1FD\x1F1FF]|\x1F1E7[\x1F1E6\x1F1E7\x1F1E9-\x1F1EF\x1F1F1-\x1F1F4\x1F1F6-\x1F1F9\x1F1FB\x1F1FC\x1F1FE\x1F1FF]|\x1F1E8[\x1F1E6\x1F1E8\x1F1E9\x1F1EB-\x1F1EE\x1F1F0-\x1F1F5\x1F1F7\x1F1FA-\x1F1FF]|\x1F1E9[\x1F1EA\x1F1EC\x1F1EF\x1F1F0\x1F1F2\x1F1F4\x1F1FF]|\x1F1EA[\x1F1E6\x1F1E8\x1F1EA\x1F1EC\x1F1ED\x1F1F7-\x1F1FA]|\x1F1EB[\x1F1EE-\x1F1F0\x1F1F2\x1F1F4\x1F1F7]|\x1F1EC[\x1F1E6\x1F1E7\x1F1E9-\x1F1EE\x1F1F1-\x1F1F3\x1F1F5-\x1F1FA\x1F1FC\x1F1FE]|\x1F1ED[\x1F1F0\x1F1F2\x1F1F3\x1F1F7\x1F1F9\x1F1FA]|\x1F1EE[\x1F1E8-\x1F1EA\x1F1F1-\x1F1F4\x1F1F6-\x1F1F9]|\x1F1EF[\x1F1EA\x1F1F2\x1F1F4\x1F1F5]|\x1F1F0[\x1F1EA\x1F1EC-\x1F1EE\x1F1F2\x1F1F3\x1F1F5\x1F1F7\x1F1FC\x1F1FE\x1F1FF]|\x1F1F1[\x1F1E6-\x1F1E8\x1F1EE\x1F1F0\x1F1F7-\x1F1FB\x1F1FE]|\x1F1F2[\x1F1E6\x1F1E8-\x1F1ED\x1F1F0-\x1F1FF]|\x1F1F3[\x1F1E6\x1F1E8\x1F1EA-\x1F1EC\x1F1EE\x1F1F1\x1F1F4\x1F1F5\x1F1F7\x1F1FA\x1F1FF]|\x1F1F4\x1F1F2|\x1F1F5[\x1F1E6\x1F1EA-\x1F1ED\x1F1F0-\x1F1F3\x1F1F7-\x1F1F9\x1F1FC\x1F1FE]|\x1F1F6\x1F1E6|\x1F1F7[\x1F1EA\x1F1F4\x1F1F8\x1F1FA\x1F1FC]|\x1F1F8[\x1F1E6-\x1F1EA\x1F1EC-\x1F1F4\x1F1F7-\x1F1F9\x1F1FB\x1F1FD-\x1F1FF]|\x1F1F9[\x1F1E6\x1F1E8\x1F1E9\x1F1EB-\x1F1ED\x1F1EF-\x1F1F4\x1F1F7\x1F1F9\x1F1FB\x1F1FC\x1F1FF]|\x1F1FA[\x1F1E6\x1F1EC\x1F1F2\x1F1F3\x1F1F8\x1F1FE\x1F1FF]|\x1F1FB[\x1F1E6\x1F1E8\x1F1EA\x1F1EC\x1F1EE\x1F1F3\x1F1FA]|\x1F1FC[\x1F1EB\x1F1F8]|\x1F1FD\x1F1F0|\x1F1FE[\x1F1EA\x1F1F9]|\x1F1FF[\x1F1E6\x1F1F2\x1F1FC]|\x1F201|\x1F202\xFE0F?|[\x1F21A\x1F22F\x1F232-\x1F236]|\x1F237\xFE0F?|[\x1F238-\x1F23A\x1F250\x1F251\x1F300-\x1F320]|[\x1F321\x1F324-\x1F32C]\xFE0F?|[\x1F32D-\x1F335]|\x1F336\xFE0F?|[\x1F337-\x1F37C]|\x1F37D\xFE0F?|[\x1F37E-\x1F384]|\x1F385[\x1F3FB-\x1F3FF]?|[\x1F386-\x1F393]|[\x1F396\x1F397\x1F399-\x1F39B\x1F39E\x1F39F]\xFE0F?|[\x1F3A0-\x1F3C1]|\x1F3C2[\x1F3FB-\x1F3FF]?|[\x1F3C3\x1F3C4](?:\x200D[\x2640\x2642]\xFE0F?|[\x1F3FB-\x1F3FF](?:\x200D[\x2640\x2642]\xFE0F?)?)?|[\x1F3C5\x1F3C6]|\x1F3C7[\x1F3FB-\x1F3FF]?|[\x1F3C8\x1F3C9]|\x1F3CA(?:\x200D[\x2640\x2642]\xFE0F?|[\x1F3FB-\x1F3FF](?:\x200D[\x2640\x2642]\xFE0F?)?)?|[\x1F3CB\x1F3CC](?:\x200D[\x2640\x2642]\xFE0F?|[\xFE0F\x1F3FB-\x1F3FF](?:\x200D[\x2640\x2642]\xFE0F?)?)?|[\x1F3CD\x1F3CE]\xFE0F?|[\x1F3CF-\x1F3D3]|[\x1F3D4-\x1F3DF]\xFE0F?|[\x1F3E0-\x1F3F0]|\x1F3F3(?:\x200D(?:\x26A7\xFE0F?|\x1F308)|\xFE0F(?:\x200D(?:\x26A7\xFE0F?|\x1F308))?)?|\x1F3F4(?:\x200D\x2620\xFE0F?|\xE0067\xE0062(?:\xE0065\xE006E\xE0067|\xE0073\xE0063\xE0074|\xE0077\xE006C\xE0073)\xE007F)?|[\x1F3F5\x1F3F7]\xFE0F?|[\x1F3F8-\x1F407]|\x1F408(?:\x200D\x2B1B)?|[\x1F409-\x1F414]|\x1F415(?:\x200D\x1F9BA)?|[\x1F416-\x1F43A]|\x1F43B(?:\x200D\x2744\xFE0F?)?|[\x1F43C-\x1F43E]|\x1F43F\xFE0F?|\x1F440|\x1F441(?:\x200D\x1F5E8\xFE0F?|\xFE0F(?:\x200D\x1F5E8\xFE0F?)?)?|[\x1F442\x1F443][\x1F3FB-\x1F3FF]?|[\x1F444\x1F445]|[\x1F446-\x1F450][\x1F3FB-\x1F3FF]?|[\x1F451-\x1F465]|[\x1F466\x1F467][\x1F3FB-\x1F3FF]?|\x1F468(?:\x200D(?:[\x2695\x2696\x2708]\xFE0F?|\x2764\xFE0F?\x200D(?:\x1F48B\x200D)?\x1F468|[\x1F33E\x1F373\x1F37C\x1F393\x1F3A4\x1F3A8\x1F3EB\x1F3ED]|\x1F466(?:\x200D\x1F466)?|\x1F467(?:\x200D[\x1F466\x1F467])?|[\x1F468\x1F469]\x200D(?:\x1F466(?:\x200D\x1F466)?|\x1F467(?:\x200D[\x1F466\x1F467])?)|[\x1F4BB\x1F4BC\x1F527\x1F52C\x1F680\x1F692\x1F9AF-\x1F9B3\x1F9BC\x1F9BD])|\x1F3FB(?:\x200D(?:[\x2695\x2696\x2708]\xFE0F?|\x2764\xFE0F?\x200D(?:\x1F48B\x200D)?\x1F468[\x1F3FB-\x1F3FF]|[\x1F33E\x1F373\x1F37C\x1F393\x1F3A4\x1F3A8\x1F3EB\x1F3ED\x1F4BB\x1F4BC\x1F527\x1F52C\x1F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查看RE2 regex demo，现在它匹配所有current 4702 emojis。
【讨论】：
请注意，这并不能处理所有表情符号。例如。 ? @BenJohnson 我现在知道了，5 年前我不知道。【参考方案2】：我的另一个完整答案被删除了，我不小心认为。
这是使用正则表达式与 Go 匹配 v14（及更低版本）IEmoji 字符的方法。 它是一个 UTF-8/32 正则表达式。 此正则表达式大小为 3k，每秒至少匹配 120,000 个 IEmoji。 没有比这更快的正则表达式了。
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Golanghttps://regex101.com/r/qep8ZJ/1
相同的正则表达式用于这些其他引擎/语言：
PCRE https://regex101.com/r/AlO8QD/1 蟒蛇https://regex101.com/r/iCzyv2/1 ECMAScript https://regex101.com/r/BoyE2n/1 Java8https://regex101.com/r/lYqUQ7/1
【讨论】：
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