Using js to parse im expressions

The chat record generally stores emoticesCode, Displays emoticon images ..... Effect

You need to write a regular expression to replace the section enclosed in brackets ([]) in textarea with the corresponding image.

The source code is as follows:

// Dml@2012.9.10 emotion parsevar em = [{'id': 1, 'phrase ':' [heap] ', 'url': '1.gif'}, {'id': 2, 'phrase ':' [Giggle] ', 'url': '2.gif'}, {'id': 3, 'phrase': '[Haha]', 'url ': '3.gif '}, {'id': 4, 'phrase': '[cute]', 'url': '4.gif '}, {'id': 5, 'phrase ': '[Poor]', 'url': '5.gif '}, {'id': 6, 'phrase': '[Pick your nostrils]', 'url': '6.gif '}, {'id': 7, 'phrase ':' [Surprised] ', 'url': '7.gif'}, {'id': 8, 'phrase ': '[Shy]', 'url': '8.gif '}, {'id': 9, 'phrase': '[eye widening]', 'url': '9.gif '}, {'id': 10, 'phrase ':' [Shut Up] ', 'url': '10.gif'}, {'id': 11, 'phrase ': '[despise]', 'url': '11.gif'}, {'id': 12, 'phrase ':' [love you] ', 'url': '12.gif '}, {'id': 13, 'phrase ':' [weeping] ', 'url': '13.gif'}, {'id': 14, 'phrase ': '[Smile]', 'url': '14.gif '}, {'id': 15, 'phrase': '[Kiss]', 'url': '15.gif '}, {'id': 16, 'phrase ':' [ill] ', 'url': '16.gif'}, {'id': 17, 'phrase ': '[Happy]', 'url': '17.gif '}, {'id': 18, 'phrase': '[don't bother you]', 'url ': '18.gif '}, {'id': 19, 'phrase': '[left hang]', 'url': '19.gif '}, {'id': 20, 'phrase ':' [Right-Hang] ', 'url': 'animated gif'}, {'id': 21, 'phrase': '[sh]', 'url ': '21.gif'}, {'id': 22, 'phrase ':' [fading] ', 'url': '22.gif'}, {'id': 23, 'phrase ': '[grievance]', 'url': '23.gif '}, {'id': 24, 'phrase': '[vomit]', 'url': '24.gif '}, {'id': 25, 'phrase ':' [yawning] ', 'url': '25.gif'}, {'id': 26, 'phrase ': '[hug]', 'url': '26.gif '}, {'id': 27, 'phrase': '[angry]', 'url': '27.gif '}, {'id': 28, 'phrase ':' [question] ', 'url': '28.gif'}, {'id': 29, 'phrase ': '[pouting]', 'url': '29.gif '}, {'id': 30, 'phrase': '[Bye-bye]', 'url': '30.gif '}, {'id': 31, 'phrase ':' [think] ', 'url': '31.gif'}, {'id': 32, 'phrase ': '[Khan]', 'url': '32.gif '}, {'id': 33, 'phrase': '[Sleepy]', 'url': '33.gif '}, {'id': 34, 'phrase ':' [sleeping] ', 'url': '34.gif'}, {'id': 35, 'phrase ': '[money]', 'url': '35.gif '}, {'id': 36, 'phrase': '[Disappointed]', 'url': '36.gif '}, {'id': 37, 'phrase ':' [cool] ', 'url': '37.gif'}, {'id': 38, 'phrase ': '[flowers]', 'url': '38.gif '}, {'id': 39, 'phrase': '[hum]', 'url': '39.gif '}, {'id': 40, 'phrase ':' [applaud] ', 'url': '40.gif'}, {'id': 41, 'phrase ': '[dizzy]', 'url': '41.gif '}, {'id': 42, 'phrase': '[sad]', 'url': '42.gif '}, {'id': 43, 'phrase ':' [Crazy] ', 'url': '43.gif'}, {'id': 44, 'phrase ': '[black line]', 'url': '44.gif '}, {'id': 45, 'phrase': '[Yin face]', 'url': '45.gif '}, {'id': 46, 'phrase ':' [angry] ', 'url': '46.gif'}, {'id': 47, 'phrase ': '[heart]', 'url': '47.gif '}, {'id': 48, 'phrase': '[sad]', 'url': '48.gif '}, {'id': 49, 'phrase ':' [Pig] ', 'url': '49.gif'}, {'id': 50, 'phrase ': '[OK]', 'url': '50.gif '}, {'id': 51, 'phrase': '[ye]', 'url': '51.gif '}, {'id': 52, 'phrase ':' [good] ', 'url': '52.gif'}, {'id': 53, 'phrase ': '[do not]', 'url': '53.gif '}, {'id': 54, 'phrase': '[like]', 'url': '54.gif '}, {'id': 55, 'phrase ':' [Come] ', 'url': '55.gif'}, {'id': 56, 'phrase ': '[Weak]', 'url': '56.gif '}, {'id': 57, 'phrase': '[candle]', 'url': '57.gif '}, {'id': 58, 'phrase ':' [clock] ', 'url': '58.gif'}, {'id': 59, 'phrase ': '[Cake]', 'url': '59.gif '}, {'id': 60, 'phrase': '[microphone]', 'url': '60.gif '}]; function msgreplace (msghtml) {var regx =/(\ [[\ u4e00-\ u9fa5] * \ W * \]) {1}/g; // search for the regular expression in the "[]" format var rs = msghtml. match (regx); If (RS) {for (I = 0; I <Rs. length; I ++) {for (n = 0; n <em. length; n ++) {If (EM [N]. phrase = Rs [I]) {var T = "
 display area. You only need to call the msgreplace method ....