Android Question RegEx Matcher with HTML Code

hasexxl1988 · Nov 12, 2017

Hello,
i have follow problem:

i have HTML Code from a Website:

Example:

HTML:

<span itemprop='name'>
                Ferrari TestCar
            </span>

i need the Name of the Car.

i have tryed with following Code:

B4X:

If Job.JobName = "PageJob" Then
            Dim mAutoName As Matcher = Regex.Matcher("<span itemprop='name'>""([^""]+)""</span>", Job.GetString)
            Do While mAutoName.Find
                namelinks.Add(mAutoName.Group(1))
            Loop
            BuildItems
        End If

Result is only: []

Download and Job function works perfect with my ImageDownloader

Images URLs with this Code Working:

B4X:

Dim m As Matcher = Regex.Matcher("src=\""https://mywebsite/mmo([^""]+)""", Job.GetString)

i have found de RegEx Pattern List: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html

Unfortunately, I do not know how to put together the value that the HTML code is removed

sorex · Nov 13, 2017

do a replace of linefeeds, tabs and double spacings (it makes it a lot easier) and then try

B4X:

Regex.Matcher("<span itemprop='name'>(.*?)</span>", Job.GetString)

hasexxl1988 · Nov 13, 2017

sorex said:
do a replace of linefeeds, tabs and double spacings (it makes it a lot easier) and then try

B4X:

Regex.Matcher("<span itemprop='name'>(.*?)</span>", Job.GetString)

Not Working :/

i have try:

B4X:

If Job.JobName = "PageJob" Then
            Dim xtemp As String
            xtemp = Job.GetString
            Log ("IndexOf: " & xtemp.IndexOf("<span itemprop='name'>"))
            Dim m As Matcher = Regex.Matcher("<span itemprop='name'>(.*?)</span>", Job.GetString)
            Do While m.Find
                Log (m.Group(1))
                    namelinks.Add(m.Group(1))
            Loop
            BuildItems
        End If

Log result with IndexOf: IndexOf: 112851

With IndexOf i can find the <span itemprop='name'> in the String. With Matcher not found.

inakigarm · Nov 13, 2017

You could test jsoup lib to get the contents searching for tag or Id in the html file (https://www.b4x.com/android/forum/threads/jsoup-html-parser.49152/#content)

udg · Nov 13, 2017

Hi,
I tried the following on an on-line regex tool and it works, altough I don't think is an elegant solution; it simply works with data from post #1.

B4X:

<span itemprop='name'>\s*(.*)\s*<\/span>

In Group 1 you read Ferrari TestCar.
Fundamentally it matches any number of whitespaces after "'name'>", followed by the group containing the car model, followed again by any number of whitespaces chars, finally followed by </span>

sorex · Nov 13, 2017

hasexxl1988 said:
Not Working :/

you didn't do it right. I told you to remove line breaks, tabs and extra spacing. this breaks regex lookups unless you add more lookup data.

Erel · Nov 13, 2017

You should use jSoup or jTidy to parse html.

Android Question RegEx Matcher with HTML Code

hasexxl1988

Active Member

sorex

Expert

hasexxl1988

Active Member

inakigarm

Well-Known Member

udg

Expert

sorex

Expert

Erel

B4X founder

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Android Question RegEx Matcher with HTML Code

hasexxl1988

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sorex

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hasexxl1988

Active Member

inakigarm

Well-Known Member

udg

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sorex

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Erel

B4X founder

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