RegExp goop

[Insolence]

More problems:

$Input = 'SetTitle "String", 1, 2,3, 5,  "Should return all of these"   ,"Literal use of quotes: \"\"" ' 

; Description of the RegExp I am using:
;    Find the function name
;
;        Find a numeric parameter
;    OR 
;        A string parameter
;           Start at the first ", move to the next " that isn't preceded by a \
$arParameter = StringRegExp ( $Input,    '(\w*) '        & _     
                                        '(([0-9]+)'  & _     
                                        '|'          & _     
                                        '(".*?[^\\]"))'   _  
                                        , 3)

For $i = 0 to UBound($arParameter) - 1
    MsgBox("","", $arParameter[$i] )
Next

I'm horrible at explaining things... running this should show the problems

PS

I want to get rid of the start/end quotes... whenever I try to do that while keeping the quotes preceded by \ it doesn't work correctly.

[therks]

Well, it looks like all of your commands are comma seperated, no?

Why not just use StringSplit, and then work with those results? I think you might be overcomplicating things.

Err.. oops. I guess I forgot something, getting comma's out of strings will be tough...

See, I'm stuck in the code trying to write something that would parse this:

'SetTitle "String", 32, 48, "She said, \"Hello.\""'

You would want array with the following, right?

0: SetTitle "String"

1: 32

2: 48

3: She said, "Hello."

Edited March 6, 2005 by Saunders

[Insolence]

I already did it without RegExp. It's a little buggy but it works, I'd much rather use RegExp.

expandcollapse popup

;==============================================================================
; Returns
;==============================================================================
; Returns an array of the parsed parameters.
;
; Errors:
;  1 - Uneven number of quotes
;  2 - Extra comma outside of quotes

;==============================================================================
; Test String
;==============================================================================
$Input = 'SetTitle "String", "This is a string, WITH a comma, or two, !", 5, 5, 5, "Should return all of these", "Literal use of quotes: \"\"" ' 

;==============================================================================
; Goods
;==============================================================================
; Remove function, we don't need it
$FirstSpace = StringInStr ( $Input, " " )
$Parameters = StringMid ( $Input, $FirstSpace )

; Setup param count
$ParamCount = 0

; Checking all possible comma's for a new parameter
$ParamSplit = StringSplit($Parameters, ',')

;For $i = 1 to $ParamSplit[0]
;   MsgBox("","", $ParamSplit[0] & "   -" & $ParamSplit[$i] & "-" )
;Next

; Setting up parameter array to max possible parameters (each comma is a possible new parameter)
Dim $Parameter[$ParamSplit[0]]

For $i = 1 to $ParamSplit[0]
    IsInQuotes ( $ParamSplit[$i] )
    
; If not in quotes, add a new parameter
    If @error = 0 Then 
   ; If no value and outside of quotes, must be an extra comma
        If $ParamSplit[$i] = "" Then
            SetError(2)
            Return -1
        EndIf
        
   ; Subracting one from the array to compensate for the StringSplit array
   ; and removing quotes.  Also making sure '\"' are parsed correctly
        $ParamSplit[$i] = StringReplace( $ParamSplit[$i], '\"', "{QUOTE}" )
        $ParamSplit[$i] = StringReplace( $ParamSplit[$i], '"', "" )
        $ParamSplit[$i] = StringReplace( $ParamSplit[$i], '{QUOTE}', '"' )
        
        $Parameter[$ParamCount] = _StringTrimWS( $ParamSplit[$i] )
        
   ; Check 1 to the param count
        $ParamCount = $ParamCount + 1
    ElseIf @error = 1 Then  
   ; If comma IS found inside quotes, combine it with the next split
        $ParamSplit[$i+1] = $ParamSplit[$i] & "," &$ParamSplit[$i+1]
    EndIf
Next

; Getting rid of any extra parameter stuff
ReDim $Parameter[$ParamCount]
    
For $i = 0 to UBound($Parameter) - 1
    MsgBox("","", $Parameter[$i])
Next

;==============================================================================
; Functions
;==============================================================================
Func StringCount ( $String, $Delimeter )
    Local $Count
    
    $Count = StringSplit ( $String, $Delimeter )
    
    Return $Count[0] - 1
EndFunc

Func _StringTrimWS ( $String )
    Return StringStripWS ( StringStripWS ( $String, 1 ), 2 )
EndFunc

Func CombineStrings( $arString )
    Local $ReturnString
    
    If IsArray($arString) = 0 Then Return -1
        
; Combine all parameters
    For $i = 0 to UBound($arString) - 1
        $ReturnString = $ReturnString & $arString[$i] & " "
    Next
    
; Get rid of last " "
    $ReturnString = StringTrimRight ( $ReturnString, 1 )
    
    Return $ReturnString
EndFunc

Func IsInQuotes ( $String, $Pos = -1)
    Local $Check, $occurances, $increment
    
; Shrink $String from beginning to the character
    $String = StringMid ( $String, 1, $Pos )
    
    $increment = 1
    $occurances = 1 
    Do
        $Check = StringInStr ( $String, '"', -1, $increment )
        
   ; Check for a \ before a quote, to signal it's not the escaping quote
        If StringMid( $String, $Check - 1, $Check) <> '\"' Then $occurances = $occurances + 1
            
        $increment = $increment + 1
    Until $Check = 0
    
; Occurances of quotes is even, so it must be outside quotes
    If IsInt($occurances / 2) Then 
        Return 1
    Else    
        SetError(1)
    EndIf
EndFunc

But, if you change the string to use an odd number of \"'s it seems to mess up:

;==============================================================================
; Test String
;==============================================================================
$Input = 'SetTitle "String", "This is a string, WITH a comma, or two, !", 5, 5, 5, "Should return all of these", "Literal use of quotes: \"\"\"" '

I want an array like this:

[0] = Function Name

[n] = Parameter value

Edited March 6, 2005 by Insolence

[therks]

;==============================================================================
; Test String
;==============================================================================
$Input = 'SetTitle "String", "This is a string, WITH a comma, or two, !", 5, 5, 5, "Should return all of these", "Literal use of quotes: \"\"\"" '

I want an array like this:

[0] = Function Name

[n] = Parameter value

<{POST_SNAPBACK}>

So using your last example there, you want this?

0: SetTitle

1: String

2: This is a string, WITH a comma, or two, !

3: 5

4: 5

5: 5

6: Should return all of these

7: Literal use of quotes: """

Is that right? (Just want to be clear).

By the way, as complex as this is getting, I'm damn near sure there's no way to do it using solely regex.

*Edit: Now this is weird... StringRegExp('.*', 'Hello') is returning 0. Am I getting daft, or is this just plain bugged?

*Edit2: Nevermind, I'm an idiot... getting my parameters backwards.

Edited March 6, 2005 by Saunders

[Insolence]

Yes that's how I want it returned but... you bastard!

Regexp was going to be my 1-liner

Anyway, if it can't handle it, than so be it. If you can get it to work better than mine, I appriciate it. Also, thanks for throwing me the help. I see you like doing this string-parsing stuff as much as I.

Edited March 6, 2005 by Insolence

[Insolence]

As to your edit, I don't know

I'm using the latest beta in the dev section, let me test that..

MsgBox("","", StringRegExp('\w+', 'Hello',0))

I tried all sorts of things, each returned 0.

Agh, you just wasted my time

Edited March 6, 2005 by Insolence

[therks]

I did get this... see how well it works for you. It might not be a one liner, but it's shorter than your other code.

$Input = 'SetTitle "String", "This is a string, WITH a comma, or two, !", 5, 5, 5, "Should return all of these", "Literal use of quotes: \"\"\"" '

$Params = ReadParams($Input)

For $i = 0 to UBound($Params) - 1
    MsgBox("","", $Params[$i])
Next

Func ReadParams($s_Input)
    $s_Input = StringReplace($s_Input, '\"', Chr(1))

    $a_Params = StringRegExp($s_Input, '([0-9]+)|"(.*?)"|(\w+)', 3)

    For $i = 0 to UBound($a_Params) - 1
        $s_Param = $a_Params[$i]
        $s_Param = StringReplace($s_Param, Chr(1), '"')
        $a_Params[$i] = $s_Param
    Next
    
    Return $a_Params
EndFunc

[Insolence]

Ah, perfect.

Owe you a few now