add text splitter

src/Common.js

@@ -1,8 +1,8 @@
 import React, {Component, PureComponent} from 'react';
 import {PKUHELPER_ROOT} from './flows_api';
+import {split_text,NICKNAME_RE,PID_RE,URL_RE} from './text_splitter'
 
 import TimeAgo from 'react-timeago';
-import Linkify from 'react-linkify';
 import chineseStrings from 'react-timeago/lib/language-strings/zh-CN';
 import buildFormatter from 'react-timeago/lib/formatters/buildFormatter';
 
@@ -12,9 +12,6 @@ const chinese_format=buildFormatter(chineseStrings);
 
 export const API_BASE=PKUHELPER_ROOT+'services/pkuhole';
 
-const PID_RE=/(^|[^\d])([1-9]\d{4,5})(?!\d)/g;
-const NICKNAME_RE=/(^|[^A-Za-z])((?:(?:Angry|Baby|Crazy|Diligent|Excited|Fat|Greedy|Hungry|Interesting|Japanese|Kind|Little|Magic|Naïve|Old|Powerful|Quiet|Rich|Superman|THU|Undefined|Valuable|Wifeless|Xiangbuchulai|Young|Zombie)\s)?(?:Alice|Bob|Carol|Dave|Eve|Francis|Grace|Hans|Isabella|Jason|Kate|Louis|Margaret|Nathan|Olivia|Paul|Queen|Richard|Susan|Thomas|Uma|Vivian|Winnie|Xander|Yasmine|Zach)|You Win(?: \d+)?|洞主)(?![A-Za-z])/gi;
-
 function pad2(x) {
     return x<10 ? '0'+x : ''+x;
 }
@@ -44,19 +41,28 @@ export function TitleLine(props) {
 
 export class HighlightedText extends PureComponent {
     render() {
-        let parts=[].concat.apply([], this.props.text.split(PID_RE).map((p)=>p.split(NICKNAME_RE)));
+        let parts=split_text(this.props.text,[
+            ['url',URL_RE],
+            ['pid',PID_RE],
+            ['nickname',NICKNAME_RE],
+        ]);
+        function normalize_url(url) {
+            return /^https?:\/\//.test(url) ? url : 'http://'+url;
+        }
         return (
-            <Linkify properties={{target: '_blank'}}>
             <pre>
-                    {parts.map((p,idx)=>(
+                {parts.map((part,idx)=>{
+                    let [rule,p]=part;
+                    return (
                         <span key={idx}>{
-                            PID_RE.test(p) ? <a href={'##'+p} onClick={(e)=>{e.preventDefault(); this.props.show_pid(p);}}>{p}</a> :
+                            rule==='url' ? <a href={normalize_url(p)} target="_blank" rel="noopener">{p}</a> :
-                            NICKNAME_RE.test(p) ? <span style={{backgroundColor: this.props.color_picker.get(p)}}>{p}</span> :
+                            rule==='pid' ? <a href={'##'+p} onClick={(e)=>{e.preventDefault(); this.props.show_pid(p);}}>{p}</a> :
+                            rule==='nickname' ? <span style={{backgroundColor: this.props.color_picker.get(p)}}>{p}</span> :
                             p
                         }</span>
-                    ))}
+                    );
+                })}
             </pre>
-            </Linkify>
         )
     }
 }

src/UserAction.js

@@ -235,7 +235,7 @@ export class ReplyForm extends Component {
             })
             .catch((e)=>{
                 console.error(e);
-                alert('回复失败\n（树洞服务器经常抽风，其实有可能已经回复上了，不妨点“刷新回复”看一看）');
+                alert('回复失败');
                 this.setState({
                     loading_status: 'done',
                 });

src/text_splitter.js

@@ -0,0 +1,24 @@
+export const PID_RE=/(^|[^\d])([1-9]\d{4,5})(?!\d)/g;
+export const NICKNAME_RE=/(^|[^A-Za-z])((?:(?:Angry|Baby|Crazy|Diligent|Excited|Fat|Greedy|Hungry|Interesting|Japanese|Kind|Little|Magic|Naïve|Old|Powerful|Quiet|Rich|Superman|THU|Undefined|Valuable|Wifeless|Xiangbuchulai|Young|Zombie)\s)?(?:Alice|Bob|Carol|Dave|Eve|Francis|Grace|Hans|Isabella|Jason|Kate|Louis|Margaret|Nathan|Olivia|Paul|Queen|Richard|Susan|Thomas|Uma|Vivian|Winnie|Xander|Yasmine|Zach)|You Win(?: \d+)?|洞主)(?![A-Za-z])/gi;
+export const URL_RE=/(?:^|\b)((?:https?:\/\/)?(?:[\w-]+\.)+[a-zA-Z]{2,3}(?::\d{1,5})?(?:\/[\w~!@#$%^&*()-_=+[\];,./?]*)?)(?:$|\b)/gi;
+
+export function split_text(txt,rules) {
+    // rules: [['name',/regex/],...]
+    // return: [['name','part'],[null,'part'],...]
+
+    txt=[[null,txt]];
+    rules.forEach((rule)=>{
+        let [name,regex]=rule;
+        txt=[].concat.apply([],txt.map((part)=>{
+            let [rule,content]=part;
+            if(rule) // already tagged by previous rules
+                return [part];
+            else {
+                return content.split(regex).map((seg)=>(
+                    regex.test(seg) ? [name,seg] : [null,seg]
+                ));
+            }
+        }));
+    });
+    return txt;
+}