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jaberwacky

Using a regexp to extract functions. Encountering difficulty.

6 posts in this topic

#1 ·  Posted (edited)

Hi.  I'm trying to use this regexp to extract the bodies of functions from an au3:

(?mi)\s*func\s*\w*\(.*\)[\v*.*]*endfunc
~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^

The carets mark the section giving me trouble.  I can't make it repeat.  Is there a better way?

If I use:

(?mi)\s*func\s*\w*\(.*\)\v*.*\v*.*endfunc

Then I can get the function _NowDate.

If I use:

(?mi)\s*func\s*\w*\(.*\)\v*.*\v*.*\v*.*endfunc

Then I get the previous func plus _NowTime.  If I repeat it more than that I get an error of no matches found.

I am using the regexp helper found in the helpfile.

Here are the functions I'm using as a test:

; #FUNCTION# ====================================================================================================================
; Author ........: Jos van der Zande
; Modified.......:
; ===============================================================================================================================
Func _NowDate()
  Return (_DateTimeFormat(@YEAR & "/" & @MON & "/" & @MDAY, 0))
EndFunc

; #FUNCTION# ====================================================================================================================
; Author ........: Jos van der Zande
; Modified.......:
; ===============================================================================================================================
Func _NowTime($sType = 3)
  If $sType < 3 Or $sType > 5 Then $sType = 3
  Return (_DateTimeFormat(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC, $sType))
EndFunc

; #FUNCTION# ====================================================================================================================
; Author ........: /dev/null
; Modified.......:
; ===============================================================================================================================
Func _SetDate($iDay, $iMonth = 0, $iYear = 0)
  ;============================================================================
  ;== Some error checking
  ;============================================================================
  If $iYear = 0 Then $iYear = @YEAR
  If $iMonth = 0 Then $iMonth = @MON
  If Not _DateIsValid($iYear & "/" & $iMonth & "/" & $iDay) Then Return 1

  Local $tSystemTime = DllStructCreate($tagSYSTEMTIME)

  ;============================================================================
  ;== Get the local system time to fill up the SYSTEMTIME structure
  ;============================================================================
  DllCall("kernel32.dll", "none", "GetLocalTime", "struct*", $tSystemTime)
  If @error Then Return SetError(@error, @extended, 0)

  ;============================================================================
  ;== Change the necessary values
  ;============================================================================
  DllStructSetData($tSystemTime, 4, $iDay)
  If $iMonth > 0 Then DllStructSetData($tSystemTime, 2, $iMonth)
  If $iYear > 0 Then DllStructSetData($tSystemTime, 1, $iYear)

  ;============================================================================
  ;== Set the new date
  ;============================================================================
  Local $iRetval = _Date_Time_SetLocalTime($tSystemTime)
  If @error Then Return SetError(@error + 10, @extended, 0)

  Return Int($iRetval)
EndFunc

EDIT: I had the Regexps all messed up.  Please look again.

Edited by jaberwacky

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#2 ·  Posted (edited)

Untested:

(?imsx)^\s*func\s+\w*\(\N*?\).*?^\s*endfunc

EDIT: changed after realizing body was not only body...

Edited by jchd
1 person likes this

This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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#3 ·  Posted (edited)

Fantastic!  Thank you.  Well, as an aside, I did ultimately want just the body without the func/endfunc parts but I think it might be up to me to experiment with what you gave me.

=)  Thank you again.

Edit: any idea on why I couldn't get [v*.*]* to repeat?

Edited by jaberwacky

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Ha! That was my first reading of "body" but I instantly changed my mind right after posting. Here you are:

(?imsx)^\s*func\s+\w*\(\N*?\)\N*(.*?)^\s*endfunc

[v*.*]* is a character class and repetition doesn't work inside character classes.

1 person likes this

This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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You are a gentleman and a scholar.

::heh:: yeah, I did decide like you did to keep the func/endfunc in there ... ok, but it's still a good thing to have both examples because now I get to study the differences between them.

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I have done quite a bit with AutoIt scripts, even posted a thread about some parsing functions.

My version.

#include <Array.au3>

Example()

Func Example()
    Local $aArray = 0, $sData = FileRead(@ScriptFullPath)
    _GetFunctions($sData, $aArray) ; Produces an array with Function + FuncName.
    If UBound($aArray) Then _ArrayDisplay($aArray)
EndFunc   ;==>Example

Func _GetFunctions(ByRef $sData, ByRef $aArray)
    $aArray = StringRegExp($sData & @CRLF, '(?ims)(^Func(?=\h)\h+(\w+)\h*\(.*?(?<=\r|\n|\r\n)EndFunc(?=\R|\s))', 3)
EndFunc   ;==>_GetFunctions

_AdapterConnections()_AlwaysRun()_AppMon()_AppMonEx()_BinaryBin()_CheckMsgBox()_CmdLineRaw()_ContextMenu()_ConvertLHWebColor()/_ConvertSHWebColor()_DesktopDimensions()_DisplayPassword()_DotNet_Load()/_DotNet_Unload()_Fibonacci()_FileCompare()_FileCompareContents()_FileNameByHandle()_FilePrefix/SRE()_FindInFile()_GetBackgroundColor()/_SetBackgroundColor()_GetConrolID()_GetCtrlClass()_GetDirectoryFormat()_GetDriveMediaType()_GetFilename()/_GetFilenameExt()_GetHardwareID()_GetIP()_GetIP_Country()_GetOSLanguage()_GetSavedSource()_GetStringSize()_GetSystemPaths()_GetURLImage()_GIFImage()_GoogleWeather()_GUICtrlCreateGroup()_GUICtrlListBox_CreateArray()_GUICtrlListView_CreateArray()_GUICtrlListView_SaveCSV()_GUICtrlListView_SaveHTML()_GUICtrlListView_SaveTxt()_GUICtrlListView_SaveXML()_GUICtrlMenu_Recent()_GUICtrlMenu_SetItemImage()_GUICtrlTreeView_CreateArray()_GUIDisable()_GUIImageList_SetIconFromHandle()_GUIRegisterMsg()_GUISetIcon()_Icon_Clear()/_Icon_Set()_IdleTime()_InetGet()_InetGetGUI()_InetGetProgress()_IPDetails()_IsFileOlder()_IsGUID()_IsHex()_IsPalindrome()_IsRegKey()_IsStringRegExp()_IsSystemDrive()_IsUPX()_IsValidType()_IsWebColor()_Language()_Log()_MicrosoftInternetConnectivity()_MSDNDataType()_PathFull/GetRelative/Split()_PathSplitEx()_PrintFromArray()_ProgressSetMarquee()_ReDim()_RockPaperScissors()/_RockPaperScissorsLizardSpock()_ScrollingCredits_SelfDelete()_SelfRename()_SelfUpdate()_SendTo()_ShellAll()_ShellFile()_ShellFolder()_SingletonHWID()_SingletonPID()_Startup()_StringCompact()_StringIsValid()_StringRegExpMetaCharacters()_StringReplaceWholeWord()_StringStripChars()_Temperature()_TrialPeriod()_UKToUSDate()/_USToUKDate()_WinAPI_Create_CTL_CODE()_WinAPI_CreateGUID()_WMIDateStringToDate()/_DateToWMIDateString()Au3 script parsingAutoIt SearchAutoIt3 PortableAutoIt3WrapperToPragmaAutoItWinGetTitle()/AutoItWinSetTitle()CodingDirToHTML5FileInstallrFileReadLastChars()GeoIP databaseGUI - Only Close ButtonGUI ExamplesGUICtrlDeleteImage()GUICtrlGetBkColor()GUICtrlGetStyle()GUIEventsGUIGetBkColor()Int_Parse() & Int_TryParse()IsISBN()LockFile()Mapping CtrlIDsOOP in AutoItParseHeadersToSciTE()PasswordValidPasteBinPosts Per DayPreExpandProtect GlobalsQueue()Resource UpdateResourcesExSciTE JumpSettings INISHELLHOOKShunting-YardSignature CreatorStack()Stopwatch()StringAddLF()/StringStripLF()StringEOLToCRLF()VSCROLLWM_COPYDATAMore Examples...

Updated: 04/09/2015

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