Как использовать регулярное выражение для извлечения URL из функции JavaScript? - PullRequest
Новая
       6

Как использовать регулярное выражение для извлечения URL из функции JavaScript?

0 голосов
/ 10 мая 2018

Я пытался выучить регулярные выражения, чтобы выполнить эту простую задачу, я тестировал шаблоны маяков с помощью редактора regex101.com, но безуспешно.

Я хочу извлечь эту ссылку (http://mp3lg4.tdf -cdn.com / 9243 / lag_164753.mp3 ) из этого текста javascript, обратите внимание, что ссылки не всегда заканчиваются mp3, это может покончить с чем-либо.

Текст JavaScript: 

    function reqListener () {
        var div = document.createElement("div");
        div.innerHTML = new XMLSerializer().serializeToString(this.responseXML.documentElement);
        document.body.insertBefore(div, document.body.childNodes[0]);
    }

    var oReq = new XMLHttpRequest();
    oReq.addEventListener("load", reqListener);
    oReq.open("GET", "//static.radio.fr/inc/v2/images/icons/icon-sprites.svg?_=93cbcb9ebf4e2d5276480a0d9c06c653056f0d85");
    oReq.send();

    var environment = {
        develop: false,
        production: true,
        debug: false
    };
    if (window.environment && window.environment.production) {
        window.console.debug = function() {};
        window.console.log = function() {};
    }
    var require = {
        baseUrl: "/inc/v2/js",
        config: {
            'logger': {
                enabled: false,
                filter: (window.environment && window.environment.develop) && (window.location.search.indexOf('test_production=') === -1) ? 'debug' : 'info'
            },
            'components/station/stationService': {
                station: {"continent":"Europe","country":"France","logo300x300":"http://static.radio.fr/images/broadcasts/15/43/8275/1/c300.png","city":"Paris","stationType":"radio_station","description":"Virgin Radio est une station de radio musicale privée Française. Elle a été créée en 2008, suite au changement de nom de la radio Europe 2, et fait partie du groupe Lagardère SCA. La radio cible une audience de jeunes adultes grâce aux hits Electro-Rock et Pop qu’elle propose. L’audience de la chaîne dépasse les 2,7 millions d’auditeurs quotidiens.\r\nCette radio FM est disponible dorénavant par internet grâce à ses flux de diffusion MP3 de 64 et 128 kbps.\r\nAprès son passage à vide du début des années 2010, Virgin Radio revient en force avec son son “Pop - Rock - Electro”.","language":["Français"],"logo100x100":"http://static.radio.fr/images/broadcasts/15/43/8275/1/c100.png","streamUrls":[{"streamUrl":"http://mp3lg4.tdf-cdn.com/9243/lag_164753.mp3","loadbalanced":false,"metaDataAvailable":false,"playingMode":"STEREO","type":"STREAM","sampleRate":44100,"streamContentFormat":"MP3","bitRate":128,"idBroadcast":8275,"sortOrder":0,"streamFormat":"ICECAST","id":47609,"streamStatus":"VALID","contentType":"audio/mpeg"},{"streamUrl":"http://mp3lg3.scdn.arkena.com/10490/virginradio.mp3","loadbalanced":false,"metaDataAvailable":false,"playingMode":"STEREO","type":"STREAM","sampleRate":44100,"streamContentFormat":"MP3","bitRate":64,"idBroadcast":8275,"sortOrder":1,"streamFormat":"ICECAST","id":57003,"streamStatus":"VALID","contentType":"audio/mpeg"}],"playable":"PLAYABLE","genres":["Pop","Rock"],"logo175x175":"http://static.radio.fr/images/broadcasts/15/43/8275/1/c175.png","adParams":{"st_city":["Paris"],"languages":["Français"],"genres":["Pop","Rock"],"topics":[],"st_cont":["Europe"],"station":["virginradio"],"family":["Virgin"],"st_region":[],"type":["radio_station"],"st_country":["France"]},"alias":"Virgin;;Virgin Radio;;103.5;;103,5;Pop Rock Electro","rank":8,"id":8275,"types":["Radio FM"],"website":"http://www.virginradio.fr/","topics":[],"shortDescription":"Virgin Radio propose d'écouter le meilleur des sons “Pop - Rock - Electro”","logo44x44":"http://static.radio.fr/images/broadcasts/15/43/8275/1/c44.png","numberEpisodes":0,"podcastUrls":[],"hideReferer":false,"name":"Virgin Radio Officiel","subdomain":"virginradio","lastModified":"2018-05-10T03:18:17.000Z","family":["Virgin"],"region":"","frequencies":[{"area":"Abbeville","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":2299,"frequency":99.6},{"area":"Agen","broadcastId":8275,"frequencyType":"FM","cityId":4416,"id":2317,"frequency":89.8},{"area":"Ajaccio","broadcastId":8275,"frequencyType":"FM","cityId":165,"id":2370,"frequency":99.8},{"area":"Alençon","broadcastId":8275,"frequencyType":"FM","cityId":2956,"id":2424,"frequency":100.9},{"area":"Allos","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":2465,"frequency":105.4},{"area":"Amiens","broadcastId":8275,"frequencyType":"FM","cityId":185,"id":2502,"frequency":93.6},{"area":"Angers","broadcastId":8275,"frequencyType":"FM","cityId":193,"id":2542,"frequency":94.8},{"area":"Angoulême","broadcastId":8275,"frequencyType":"FM","cityId":1975,"id":2564,"frequency":100.3},{"area":"Annecy","broadcastId":8275,"frequencyType":"FM","cityId":198,"id":2587,"frequency":100.5},{"area":"Annemasse","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":2594,"frequency":90.1},{"area":"Arcachon","broadcastId":8275,"frequencyType":"FM","cityId":5789,"id":2644,"frequency":94.1},{"area":"Argentan","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":2668,"frequency":96.1},{"area":"Arras","broadcastId":8275,"frequencyType":"FM","cityId":2721,"id":2708,"frequency":91.9},{"area":"Aubenas","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":2759,"frequency":106.9},{"area":"Aubusson","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":2783,"frequency":101.8},{"area":"Auch","broadcastId":8275,"frequencyType":"FM","cityId":230,"id":2799,"frequency":100.2},{"area":"Aurillac","broadcastId":8275,"frequencyType":"FM","cityId":237,"id":2845,"frequency":89},{"area":"Autun","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":2861,"frequency":87.6},{"area":"Auxerre","broadcastId":8275,"frequencyType":"FM","cityId":240,"id":2881,"frequency":98.9},{"area":"Avallon","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":2904,"frequency":90.8},{"area":"Avignon","broadcastId":8275,"frequencyType":"FM","cityId":241,"id":2927,"frequency":89},{"area":"Avranches","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":2938,"frequency":89},{"area":"Bar-le-Duc","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3007,"frequency":102},{"area":"Barcelonnette","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3027,"frequency":94},{"area":"Bastia","broadcastId":8275,"frequencyType":"FM","cityId":1962,"id":3066,"frequency":107.2},{"area":"Bayeux","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3078,"frequency":101.7},{"area":"Bayonne","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3095,"frequency":97.7},{"area":"Beauvais","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3129,"frequency":103.5},{"area":"Belfort","broadcastId":8275,"frequencyType":"FM","cityId":303,"id":3163,"frequency":98.4},{"area":"Bellegarde-sur-Valserine","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3186,"frequency":103.1},{"area":"Belley","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3199,"frequency":96.1},{"area":"Bergerac","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3217,"frequency":93.2},{"area":"Besançon","broadcastId":8275,"frequencyType":"FM","cityId":324,"id":3261,"frequency":100.4},{"area":"Béthune","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3276,"frequency":90.1},{"area":"Blois","broadcastId":8275,"frequencyType":"FM","cityId":344,"id":3325,"frequency":97.2},{"area":"Bonnières-sur-Seine","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3358,"frequency":88.8},{"area":"Bordeaux","broadcastId":8275,"frequencyType":"FM","cityId":360,"id":3387,"frequency":94.3},{"area":"Boulogne-sur-Mer","broadcastId":8275,"frequencyType":"FM","cityId":365,"id":3419,"frequency":91.5},{"area":"Bourg-en-Bresse","broadcastId":8275,"frequencyType":"FM","cityId":1991,"id":3442,"frequency":96.3},{"area":"Bourges","broadcastId":8275,"frequencyType":"FM","cityId":366,"id":3475,"frequency":99.6},{"area":"Brest","broadcastId":8275,"frequencyType":"FM","cityId":379,"id":3526,"frequency":96.5},{"area":"Briançon","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3554,"frequency":96},{"area":"Brioude","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3577,"frequency":89.8},{"area":"Brive-la-Gaillarde","broadcastId":8275,"frequencyType":"FM","cityId":1996,"id":3600,"frequency":88.1},{"area":"Caen","broadcastId":8275,"frequencyType":"FM","cityId":413,"id":3628,"frequency":96.8},{"area":"Cahors","broadcastId":8275,"frequencyType":"FM","cityId":10713,"id":3647,"frequency":96.8},{"area":"Calvi","broadcastId":8275,"frequencyType":"FM","cityId":10711,"id":3686,"frequency":106.7},{"area":"Cannes","broadcastId":8275,"frequencyType":"FM","cityId":423,"id":3717,"frequency":88.1},{"area":"Carcassonne","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3753,"frequency":96},{"area":"Carhaix-Plouguer","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3756,"frequency":106.8},{"area":"Carpentras","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3766,"frequency":103.3},{"area":"Castelnaudary","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3789,"frequency":102.3},{"area":"Castres","broadcastId":8275,"frequencyType":"FM","cityId":440,"id":3804,"frequency":102.4},{"area":"Cauterets","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3810,"frequency":94.1},{"area":"Chalon-sur-Saône","broadcastId":8275,"frequencyType":"FM","cityId":8551,"id":3872,"frequency":97.8},{"area":"Châlons-en-Champagne","broadcastId":8275,"frequencyType":"FM","cityId":11051,"id":3893,"frequency":95.5},{"area":"Chamonix","broadcastId":8275,"frequencyType":"FM","cityId":1986,"id":3939,"frequency":98.3},{"area":"Charleville-Mézières","broadcastId":8275,"frequencyType":"FM","cityId":459,"id":3962,"frequency":99.9},{"area":"Charolles","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3969,"frequency":95.1},{"area":"Chartres","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":3987,"frequency":103.3},{"area":"Château-du-Loir","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":4002,"frequency":103.7},{"area":"Château-Thierry","broadcastId":8275,"frequencyType":"FM","cityId":0,"id":4021,"frequency":102.4},{"area":"Châteaubriant","broadcastId":8275,"frequencyType":"FM","cityId":6200,"id":4030,"frequency":88.6},{"area":"…

Я хочу применить этот шаблон регулярных выражений в этом коде: 

Public Function regExInput(myPatern As String, myInput As String) As String

Dim strPattern As String: strPattern = myPatern
Dim strReplace As String: strReplace = ""
Dim regEx As New RegExp
regExInput = myInput

If strPattern <> "" Then
    With regEx
        .Global = True
        .MultiLine = True
        .IgnoreCase = False
        .Pattern = strPattern
    End With

    If regEx.Test(regExInput) Then
        MsgBox (regEx.Replace(regExInput, strReplace))
    Else
        MsgBox ("Not matched")
    End If
End If
End Function

1 Ответ

0 голосов
/ 10 мая 2018

Вот регулярное выражение, которое должно делать то, что вы хотите: 

/{\s*["']\s*streamUrl\s*["']\s*:\s*["']\s*(http[^"']+)/

Попробуйте это здесь: https://regex101.com/r/sAXaOE/1

Совпадение в группе 1 (смотрите информацию о матче справа).

А в VBA это может быть что-то вроде этого: 

Dim myRegExp, myMatches, myMatch
Set myRegExp = New RegExp
myRegExp.IgnoreCase = True
myRegExp.Global = True
myRegExp.Pattern = "{\s*[""']\s*streamUrl\s*[""']\s*:\s*[""']\s*(http[^""']+)"
Set myMatches = myRegExp.Execute(SubjectString)
For Each myMatch In myMatches
    For I = 1 To myMatch.SubMatches.Count
        'backreference text: myMatch.SubMatches(I-1)
    Next
Next
Добро пожаловать на сайт PullRequest, где вы можете задавать вопросы и получать ответы от других членов сообщества.

Нет похожих вопросов

...