_ArrayExtract extract lines from array who lines contain some string

jayfry · February 19, 2019

Hello, First this form is great, I've gotten so much done today with just the help files and examples here. So please if you know a help file I can use, let me know. _ArrayExtract is what i'm thinking will work.

What i'm doing: I'm getting a list of files whose name contains ".url", putting the full path to an Array, then i'm taking those files and joining all the files into 1 file. What I want to do now, is from that master file I created, I want to extract only lines whose it contains "URL".

#Include <File.au3>
#Include <Array.au3>


$fileout = "C:\Users\Good Stuff\out.txt"
$sAutoItDir = "C:\Users\Store Bookmarks"
if FileExists($fileout) then FileDelete($fileout)
$file = FileOpen($fileout, 1)

$aArray = _FileListToArrayRec($sAutoItDir, "*.url", $FLTAR_FILES, $FLTAR_RECUR, $FLTAR_NOSORT, $FLTAR_FULLPATH)

for $i = 1 to $aArray[0]
    $data = FileRead($aArray[$i])
    FileWrite($file, "-------------------- File:  "&$aArray[$i]&"--------------------------------"&@crlf)
    FileWrite($file, $data&@CRLF)
Next

; Define a variable to pass to _FileReadToArray.
Local $aArray = 0


If Not _FileReadToArray($fileout, $aArray, 0) Then
    MsgBox($MB_SYSTEMMODAL, "", "There was an error reading the file. @error: " & @error) ; An error occurred reading the current script file.
EndIf

; Display the array in _ArrayDisplay.
_ArrayDisplay($aArray)

;Here I want to create a variable and set it to the value of an array whose consists of only lines that have URL, extracted from the master file i loaded into an array.

;$extractedArray = _ArrayExtract($aArray, "URL=", "URL=")
;_ArrayDisplay($extractedArray)

FileClose($file)
;ShellExecute($fileout)

Everything works the way I want it to, up until extracting lines whose it contains URL from the "master file" array I made.

Hoping someone can point me in the right direction. Also I just started autoit today so if you see other issues please feel free to point them out to me.

iamtheky · February 19, 2019

use arrayfindall to get the indices, then loop through that array putting the values back.

#include<array.au3>

local $a[9]=[1,2,'line 3 has url in it',4,5,6,'url begins line 7','line 8 ends with url',9]

 $aMatches = _ArrayFindAll($a , "url" , 0 ,0 , 0, 1)

For $i = 0 to ubound($aMatches) - 1
     $aMatches[$i] = $a[$aMatches[$i]]
Next

_ArrayDisplay($aMatches)

Edited February 19, 2019 by iamtheky

Dwalfware · February 19, 2019

I pull the entire file into a array then loop the array and check for the ITEM containing the word

$file1 = "c:\somefile.txt"
; ---------------------------------
; FILE TO ARRAY
; ---------------------------------
Func _GetValid()
; ..................................................
$ListRead = FileRead($file1, FileGetSize($file1))
$aarray = StringRegExp($ListRead, "(?i)url(.*?)", 3)  ;; THIS IS THE PART YOU NEED TO CHANGE TO FIND YOUR LINES 
; ..................................................
For $bi = 0 to UBound($aarray) - 1
ConsoleWrite("DEBUG: " & $aarray[$bi]  & @CRLF)   ;  THIS IS THE PART YOU NEED TO EXPORT TO A FILE LINE BY LINE
Next
; ..................................................
Return
EndFunc

;also try _StringExplode($sText, "##", 0)
;StringInStr("This is a sentence with whitespace.", "white")

iamtheky · February 20, 2019

one more go at it, think this line might pull off the trick

#include<array.au3>

local $a[9]=['entry 0 url match' , 1,2,'line 3 has url in it',4,5,6,'url begins line 7','line 8 ends with url']

 _ArrayDisplay(StringRegExp(_ArrayToString($a, @LF) & @LF , "(.*url.*?)" & @LF , 3))

jayfry · February 20, 2019

So my output gave me more URLs than I wanted, and I stumbled across stringleft.

I'm now using the following to sort go through my array and only take the lines that start with URL.

#Include <File.au3>
#Include <Array.au3>
$fileout = "C:\Users\Jonathan\Desktop\DEV\CreateFile\Good Stuff\out.txt"
$sAutoItDir = "C:\Users\Jonathan\Desktop\DEV\Store Bookmarks"
if FileExists($fileout) then FileDelete($fileout)
$file = FileOpen($fileout, 1)

;This buils out the Dirs to get bookmarks from. It recurselivy returns files that end in .url. 
$aArray = _FileListToArrayRec($sAutoItDir, "*.url", $FLTAR_FILES, $FLTAR_RECUR, $FLTAR_NOSORT, $FLTAR_FULLPATH)

;This takes the file paths provided by the _FilelisttoarrayRec above and combines all the files into 1 file.

for $i = 1 to $aArray[0]
    for $j = 1 to _FileCountLines($aArray[$i])
        $line = FileReadline($aArray[$i],$j)
            If StringLeft($line, 3) = "URL" Then
            FileWrite($file, $line&@CRLF)
        EndIf
    Next
Next

Let me know if this is good or not

iamtheky · February 20, 2019

probably going to want to look at _FileReadToArray or at least FileOpen and pass the handle (as you did with the outfile).

Please note this from the FileReadLine help file:

Quote

If a filename is passed to the function, the file will be opened and closed during the call which slows execution considerably

based off its location in the loop you are opening-reading-closing for every line of every file.

Edited February 20, 2019 by iamtheky

jayfry · February 20, 2019

41 minutes ago, iamtheky said:

probably going to want to look at _FileReadToArray or at least FileOpen and pass the handle (as you did with the outfile).

Please note this from the FileReadLine help file:

based off its location in the loop you are opening-reading-closing for every line of every file.

Thank you for pointing that out.

I think this fixes that issue.

for $i = 1 to $aArray[0]
    for $j = 1 to _FileCountLines($aArray[$i])
        $line = FileReadline($aArray[$i],$j)
            If StringLeft($line, 3) = "URL" Then
            FileWrite($file, $line&@CRLF)
        EndIf
    Next
Next

Could you point me to which help file will show me how to add the result into another array, i'd rather not save this to a file if I don't have to.

I Tired _ArrayAdd but i'm not getting it. I think it's the right direction tho.

jayfry · February 20, 2019

44 minutes ago, iamtheky said:

probably going to want to look at _FileReadToArray or at least FileOpen and pass the handle (as you did with the outfile).

Please note this from the FileReadLine help file:

based off its location in the loop you are opening-reading-closing for every line of every file.

Thank you for pointing that out.

I think this fixes that issue.

for $i = 1 to $aArray[0]
    $file2 = $aArray[$i]
    FileOpen($file2,0)
    For $j = 1 to _FileCountLines($file2)
        $line = FileReadLine($file2, $j)
        If StringLeft($line, 3) = "URL" Then
            FileWrite($file, $line&@CRLF)
        EndIf
    Next
Next

Could you point me to which help file will show me how to add the result into another array, i'd rather not save this to a file if I don't have to.

I Tired _ArrayAdd but i'm not getting it. I think it's the right direction tho.

Edit. Adding wrong code at first.

iamtheky · February 20, 2019

ArrayAdd is probably useful.

Im thinking _FileReadToArray, delete everything without URL, then build a Final array with the leftovers each time through.

the below is just pseudo code, may or may not work at all:

local $aFinal[0]
local $aArray

For $j = 0 to ubound($aListOfFiles) - 1

 _FileReadToArray($ListofFiles[$j] , $aArray , 0)

  For $i = ubound($aArray) - 1 to 0 step -1 ;note to loop backwards if you are deleting stuff

      if stringleft($aArray[$i],3) <> "URL"  then _ArrayDelete($aArray , $i)

  Next

_ArrayAdd($aFinal , $aArray)

Next

Edited February 20, 2019 by iamtheky

jayfry · February 20, 2019

I figured out I was initializing my array inside my loop (DOH).

This works for me.

local $aFinal[0]
for $i = 1 to $aArray[0]
    $file2 = $aArray[$i]
    FileOpen($file2,0)
    For $j = 1 to _FileCountLines($file2)
        $line = FileReadLine($file2, $j)
        If StringLeft($line, 3) = "URL" Then
            _ArrayAdd($aFinal, $line)
        EndIf
    Next
Next
_ArrayDisplay($aFinal)

jayfry · February 20, 2019

to round this out in case anyone wants to use it later Here's my full code.

#Include <File.au3>
#Include <Array.au3>
$sAutoItDir = "C:\Users\Jonathan\Desktop\DEV\Store Bookmarks"

;This buils out the Dirs to get bookmarks from. It recurselivy returns files that end in .url. 
$aArray = _FileListToArrayRec($sAutoItDir, "*.url", $FLTAR_FILES, $FLTAR_RECUR, $FLTAR_NOSORT, $FLTAR_FULLPATH)

;This takes the files provided by $aArray, Reads them line by line, and for lines that start with URL, it writes them to $aFinal
local $aFinal[0]
for $i = 1 to $aArray[0]
    $file2 = $aArray[$i]
    FileOpen($file2,0)
    For $j = 1 to _FileCountLines($file2)
        $line = FileReadLine($file2, $j)
        If StringLeft($line, 3) = "URL" Then
            _ArrayAdd($aFinal, $line)
        EndIf
    Next
Next
_ArrayDisplay($aFinal)

i'm super happy. The documentation for this language is great.

_ArrayExtract extract lines from array who lines contain some string

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