Parse a HTML Table into a ListView

What?
A quick article on if you were given a webpage coded in HTML, what methods in AutoHotkey could you use to separate out the HTML Tables into a ListView.

Why?
I want a snippet of code that replicates any HTML table.

How?
I've been trying various ways so I'm posting them here. My opinions on them change with the weather so until I do some benchmarking I won't know which ones best:

Method #1
This method replicates the table in a listview format:
copyraw
StringReplace,ReturnedHTMLTableRows,ReturnedHTMLTable,,|,A
    ReturnedHTMLTableRows=%ReturnedHTMLTableRows%
    StringSplit,ReturnedHTMLTableRows,ReturnedHTMLTableRows,|
    RowIndex:=0
    Loop, %ReturnedHTMLTableRows0%
    {
        ColIndex:=1
        RowIndex++
        ReturnedHTMLTableColString:=ReturnedHTMLTableRows%RowIndex%

        If RowIndex=2
            StringSplit,HeadingsArray,HeadingsArrayString,|

        StringReplace,ReturnedHTMLTableColString,ReturnedHTMLTableColString,,|,A
        ReturnedHTMLTableColString=%ReturnedHTMLTableColString%
        StringSplit,ReturnedHTMLTableCols,ReturnedHTMLTableColString,|
        Loop, %ReturnedHTMLTableCols0%
        {
            ThisValue := RegExReplace( ReturnedHTMLTableCols%ColIndex%, "" , "")
            HeadingIndex := ColIndex + 2
            TypeLabel := HeadingsArray%HeadingIndex%

            If RowIndex=1
                HeadingsArrayString:=HeadingsArrayString "|" ThisValue

            If ColIndex=1
                ThisLabel := ThisValue
            Else
                If RowIndex1
                    If ColIndex%ReturnedHTMLTableCols0%
                        LV_Add("", ThisLabel " (" TypeLabel ")" , ThisValue )

            ColIndex++
        }
    }
  1.  StringReplace,ReturnedHTMLTableRows,ReturnedHTMLTable,,|,
  2.      ReturnedHTMLTableRows=%ReturnedHTMLTableRows% 
  3.      StringSplit,ReturnedHTMLTableRows,ReturnedHTMLTableRows,
  4.      RowIndex:=0 
  5.      Loop, %ReturnedHTMLTableRows0% 
  6.      { 
  7.          ColIndex:=1 
  8.          RowIndex++ 
  9.          ReturnedHTMLTableColString:=ReturnedHTMLTableRows%RowIndex% 
  10.   
  11.          If RowIndex=2 
  12.              StringSplit,HeadingsArray,HeadingsArrayString,
  13.   
  14.          StringReplace,ReturnedHTMLTableColString,ReturnedHTMLTableColString,,|,
  15.          ReturnedHTMLTableColString=%ReturnedHTMLTableColString% 
  16.          StringSplit,ReturnedHTMLTableCols,ReturnedHTMLTableColString,
  17.          Loop, %ReturnedHTMLTableCols0% 
  18.          { 
  19.              ThisValue :RegExReplace( ReturnedHTMLTableCols%ColIndex%, "" , "") 
  20.              HeadingIndex := ColIndex + 2 
  21.              TypeLabel := HeadingsArray%HeadingIndex% 
  22.   
  23.              If RowIndex=1 
  24.                  HeadingsArrayString:=HeadingsArrayString "|" ThisValue 
  25.   
  26.              If ColIndex=1 
  27.                  ThisLabel := ThisValue 
  28.              Else 
  29.                  If RowIndex1 
  30.                      If ColIndex%ReturnedHTMLTableCols0% 
  31.                          LV_Add("", ThisLabel (" TypeLabel ")" , ThisValue ) 
  32.   
  33.              ColIndex++ 
  34.          } 
  35.      } 

Method #2
This method only uses two columns with the label being a concatenation of the value of the first column and the column heading.
copyraw
ExtractText( Haystack, Needle1a, Needle1b, Needle2a, NeedleMarker ){

        Needle1 := InStr( Haystack, Needle1a, false, NeedleMarker )
        Needle1 := InStr( Haystack, Needle1b, false, Needle1 ) + StrLen( Needle1b )
        Needle2 := InStr( Haystack, Needle2a, false, Needle1 )
        NeedleLen := Needle2 - Needle1
        NeedleMarker := Needle2
        ThisValue := SubStr( Haystack, Needle1, NeedleLen )
        ThisValue=%ThisValue%

        Return [ThisValue, NeedleMarker]

    }


; Usage
        ; get table HTML
        ReturnedValues := ExtractText( Haystack, Needle1a, Needle1b, Needle2a, NeedleMarker )
        TheHTMLTable := ReturnedValues[1]
        NeedleMarker := ReturnedValues[2]
  1.  ExtractText( Haystack, Needle1a, Needle1b, Needle2a, NeedleMarker ){ 
  2.   
  3.          Needle1 :InStr( Haystack, Needle1a, false, NeedleMarker ) 
  4.          Needle1 :InStr( Haystack, Needle1b, false, Needle1 ) + StrLen( Needle1b ) 
  5.          Needle2 :InStr( Haystack, Needle2a, false, Needle1 ) 
  6.          NeedleLen := Needle2 - Needle1 
  7.          NeedleMarker := Needle2 
  8.          ThisValue :SubStr( Haystack, Needle1, NeedleLen ) 
  9.          ThisValue=%ThisValue% 
  10.   
  11.          Return [ThisValue, NeedleMarker] 
  12.   
  13.      } 
  14.   
  15.   
  16.  ; Usage 
  17.          ; get table HTML 
  18.          ReturnedValues :ExtractText( Haystack, Needle1a, Needle1b, Needle2a, NeedleMarker ) 
  19.          TheHTMLTable := ReturnedValues[1] 
  20.          NeedleMarker := ReturnedValues[2] 


Snippets
Assume that "Haystack" is the string of code you want to parse (all content).

Function ExtractText extracts text given a unique string to mark the start of the extract (1a), a second string (1b) to refine the starting position of the extract, and a third string (2a) to specify the closing position of the extract. NeedleMarker is the offset and means when this function is used for several tables, the Needlemarker tells the function to start from where it last found a table and to find the next:
    ExtractText( Haystack, Needle1a, Needle1b, Needle2a, NeedleMarker ){

        Needle1 := InStr( Haystack, Needle1a, false, NeedleMarker )
        Needle1 := InStr( Haystack, Needle1b, false, Needle1 ) + StrLen( Needle1b )
        Needle2 := InStr( Haystack, Needle2a, false, Needle1 )
        NeedleLen := Needle2 - Needle1
        NeedleMarker := Needle2
        ThisValue := SubStr( Haystack, Needle1, NeedleLen )
        ThisValue=%ThisValue%

        Return [ThisValue, NeedleMarker]

    }


; Usage
        ; get table HTML
        ReturnedValues := ExtractText( Haystack, Needle1a, Needle1b, Needle2a, NeedleMarker )
        TheHTMLTable := ReturnedValues[1]
        NeedleMarker := ReturnedValues[2]


Category: Hypertext Markup Language :: Article: 496

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