Hello everyone, I have this problem that is driving me crazy.
This is the idea behind the code:
I download a site, open the downloaded file, I make some modifications on the html code, save it and open the modified html with webview.
I added an event listener for when you click a link inside the webview to start the linkDownload function that does the same thing I explained above so every time you click a link inside the webview I modify the html and show what I want it to show.
When you first open the webview everything loads correctly. Once I click a link though, it is failing to find that first p1 from the htmlToText_Corsi (text) function and thus leaving p1 at nil and then executing the if part that has p1 == nil.
The print(text) just below it shows the html code, and the string i’m trying to find is there! so why is p1 getting a nil value from that find??
I’ve tried modifying the string to find a much simpler one just for testing and still have the same issue.
local function webListener( event )
local function linkDownload ( event )
if ( event.isError ) then
print ( "Network error - download failed" )
else
local htmlFile = io.open( path, "r" )
local html = htmlFile:read( "\*a" ) --codice html del sito scaricato
io.close( htmlFile )
htmlExtracted = html2text.htmlToText({ caller = "menuCorsi", text = html})
htmlCode = text2html.textToHtml({ caller = "menuCorsi", text = htmlExtracted})
--This code writes "htmlCode" to an HTML file and saves it in the temporary directory.
local htmlFile = io.open( path, "w" )
htmlFile:write( htmlCode )
io.close( htmlFile )
local x, y = display.screenOriginX, display.screenOriginY + 20.5\*2
local width, height = \_realW, \_realH - y
webView:request( "uniRomaTreTemporary.html", system.DocumentsDirectory )
end
end
if event.url then
print( "You are visiting: " .. event.url )
end
if event.type then
print( "The event.type is " .. event.type ) -- print the type of request
end
if event.errorCode then
native.showAlert( "Errore nell'aprire il link", event.errorMessage, { "OK" } )
end
if event.type == "link" then
webView:stop()
print("------------STOPPING WEBVIEW----------------")
network.download( event.url, "GET", linkDownload, "uniRomaTreTemporary.html", system.DocumentsDirectory )
end
end
local function urlDownload ( event )
if ( event.isError ) then
print ( "Network error - download failed" )
else
local htmlFile = io.open( path, "r" )
local html = htmlFile:read( "\*a" ) --codice html del sito scaricato
io.close( htmlFile )
htmlExtracted = html2text.htmlToText({ caller = "menuCorsi", text = html})
htmlCode = text2html.textToHtml({ caller = "menuCorsi", text = htmlExtracted})
--This code writes "htmlCode" to an HTML file and saves it in the temporary directory.
local htmlFile = io.open( path, "w" )
htmlFile:write( htmlCode )
io.close( htmlFile )
local x, y = display.screenOriginX, display.screenOriginY + 20.5\*2
local width, height = \_realW, \_realH - y
webView = native.newWebView( x, y, width, height )
webView:request( "uniRomaTreTemporary.html", system.DocumentsDirectory )
webView:addEventListener( "urlRequest", webListener )
end
end
network.download( gridP.urls.corsi, "GET", urlDownload, "uniRomaTreTemporary.html", system.DocumentsDirectory ) Here is the code of the funcion that is called above in the line: htmlExtracted = html2text.htmlToText({ caller = “menuCorsi”, text = html}) in both linkDownload and urlDownload.
function htmlToText\_Corsi (text)
local mainURL = "https://portalestudente-s3.uniroma3.it/esse3/"
local p1, p2, p3, p4, posStart, posEnd = nil
text = string.gsub (text, '\n', "")
p1, p2 = string.find(text, '
| **Percorsi di studio/Curricula** |
')
print(text)
if ( p1 ~= nil ) then --secondo livello di navigazione?
print("---------VERIFICANDO SECONDO LIVELLO---------------")
p3, p4 = string.find(text, '', p2)
posStart = p1
posEnd = p4
text = (string.sub(text, posStart, posEnd))
end
if( p1 == nil ) then --primo livello di navigazione?
print("---------VERIFICANDO PRIMO LIVELLO---------------")
p1, p2 = string.find(text, '
')
posStart = p1
p3, p4 = string.find(text, ' |', posStart)
posEnd = p3-1
text = (string.sub(text, posStart, posEnd))
end
text = string.gsub (text, 'width%="[^%"]\*%" ', "")
text = string.gsub (text, 'href%="', 'href="'..mainURL)
return text
end I’m testing the app on an Android device (samsung galaxy tablet, android 2.2)
Thanks for your attention [import]uid: 165560 topic_id: 32813 reply_id: 332813[/import]