Android Question regex catch first line only

invocker · Jan 21, 2023

hello,

I need to extract a group from text But I not fammiliar with regex ,Need some one to help me with Please this is what I got
html hier

HTML:

<hr />
<ul>
<li><strong>خالد المشيقح:</strong></li>
</ul>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/01.mp3">شرح التسهيل 1 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/02.mp3">شرح التسهيل 2 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/03.mp3">شرح التسهيل 3</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/04.mp3">شرح التسهيل 4</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/05.mp3">شرح التسهيل 5 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/06.mp3">شرح التسهيل 6</a></p>
<ul>
<li><strong>عبدالسلام الشويعر:</strong></li>
</ul>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/07.mp3">شرح التسهيل 7</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/08.mp3">شرح التسهيل 8 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/09.mp3">شرح التسهيل 9 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/10.mp3">شرح التسهيل 10</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/11.mp3">شرح التسهيل 11 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/12.mp3">شرح التسهيل 12 </a></p>
<ul>
<li><strong>سامي الصقير:</strong></li>
</ul>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/13.mp3">شرح التسهيل 13 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/14.mp3">شرح التسهيل 14 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/15.mp3">شرح التسهيل 15</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/16.mp3">شرح التسهيل 16</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/17.mp3">شرح التسهيل 17 </a></p>
<hr />

epiCode · Jan 21, 2023

invocker said:
hello,

I need to extract a group from text But I not fammiliar with regex ,Need some one to help me with Please this is what I got
html hier

What exactly do you want to extract. Give an example.

emexes · Jan 22, 2023

invocker said:
I need to extract a group from text But I not fammiliar with regex ,Need some one to help me with Please this is what I got

epiCode said:
What exactly do you want to extract. Give an example.

+1

But in the meantime, this random guess might be enough to get you pointed in the right direction:

B4X:

Dim LookIn As String = $"<hr />
<ul>
<li><strong>خالد المشيقح:</strong></li>
</ul>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/01.mp3">شرح التسهيل 1 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/02.mp3">شرح التسهيل 2 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/03.mp3">شرح التسهيل 3</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/04.mp3">شرح التسهيل 4</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/05.mp3">شرح التسهيل 5 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/06.mp3">شرح التسهيل 6</a></p>
<ul>
<li><strong>عبدالسلام الشويعر:</strong></li>
</ul>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/07.mp3">شرح التسهيل 7</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/08.mp3">شرح التسهيل 8 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/09.mp3">شرح التسهيل 9 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/10.mp3">شرح التسهيل 10</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/11.mp3">شرح التسهيل 11 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/12.mp3">شرح التسهيل 12 </a></p>
<ul>
<li><strong>سامي الصقير:</strong></li>
</ul>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/13.mp3">شرح التسهيل 13 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/14.mp3">شرح التسهيل 14 </a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/15.mp3">شرح التسهيل 15</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/16.mp3">شرح التسهيل 16</a></p>
<p><a class="stealth download-pill" href="https://archive.org/download/Kitab_Tasheel_fi_Fiqh/17.mp3">شرح التسهيل 17 </a></p>
<hr />"$

Dim LookFor As String = $"href\=\"([^\"]*)\""$
Dim m As Matcher = Regex.Matcher(LookFor, LookIn)
Do While m.Find
    Log(m.Group(1)) 
Loop

Log output::

Waiting for debugger to connect...
Program started.
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/01.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/02.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/03.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/04.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/05.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/06.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/07.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/08.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/09.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/10.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/11.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/12.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/13.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/14.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/15.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/16.mp3
https://archive.org/download/Kitab_Tasheel_fi_Fiqh/17.mp3
Program terminated (StartMessageLoop was not called).

emexes · Jan 22, 2023

href\=\"([^\"]*)\"

looks like the cat walked across the keyboard, but is actually a regex expression/pattern/template that is looking for:

href=" (the \ are to say: the next character is actually a character to look for, don't interpret it as a special command)
followed by collecting everything inside the ( ) brackets into Matcher.Group(1), ie will match/collect all characters except "
followed by "

https://regex101.com/r/qTRD84/1

invocker · Jan 22, 2023

Thank's for replay I need to extract author with mp3 and all their lessons
example :

a- سامي الصقير
1 "https://archive.org/download/Kitab_Tasheel_fi_Fiqh/13.mp3" شرح التسهيل 13
2 "https://archive.org/download/Kitab_Tasheel_fi_Fiqh/14.mp3" شرح التسهيل 14
3 "https://archive.org/download/Kitab_Tasheel_fi_Fiqh/15.mp3" شرح التسهيل 15
4 "https://archive.org/download/Kitab_Tasheel_fi_Fiqh/16.mp3" شرح التسهيل 16
5 "https://archive.org/download/Kitab_Tasheel_fi_Fiqh/17.mp3" شرح التسهيل 17

I can Get it using two pattern but I ask if I can get it using one pattern

emexes · Jan 22, 2023

invocker said:
I can Get it using two pattern but I ask if I can get it using one pattern

Not easily. Getting both author name and lessons with one pattern is doable, but not straightforward.

If you are already have working code (using two patterns?) then I'd stick with that.

ps the right-to-left text causing the track numbers to be physically in the string AFTER the track titles... that took me a while to work out ?

drgottjr · Jan 23, 2023

this:

B4X:

    Dim pat As String = $"href=(".*?)</a></p>|<strong>(.+?):</str"$
    Dim mat As Matcher = Regex.Matcher2(pat, Regex.MULTILINE, LookIn)
    Do While mat.Find
        If mat.Group(1) <> Null Then
            Log(mat.Group(1).Replace(">"," "))
        else if mat.Group(2) <> Null Then
            Log(mat.Group(2))
        End If
    Loop

emexes · Jan 23, 2023

drgottjr said:
Dim pat As String = $"href=(".*?)</a></p>|<strong>(.+?):</str"$
Dim mat As Matcher = Regex.Matcher2(pat, Regex.MULTILINE, LookIn)
Do While mat.Find
If mat.Group(1) <> Null Then
Log(mat.Group(1).Replace(">"," "))
else if mat.Group(2) <> Null Then
Log(mat.Group(2))

Lol every day I learn something new, and today I learned a nifty way to conduct two searches in parallel. ?

invocker · Jan 23, 2023

Thank you drgottjr work fine Thank's I modify pattern To get all what I need

B4X:

href="([^"]*)">([^"]*)</a></p>|<strong>([^>]*):</str

Android Question regex catch first line only

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