Regex Tester Version 2

[CFrank]

Hi, this is my second version of the RegexTester.
Bugfixes and new features.

I hope the comment section explains everything.
In case there is something unclear, let me know.

Cheers
Claudia

import time

# -----------------------------------------------------------------------------

import re

from ctypes import windll, byref, wintypes, WINFUNCTYPE, Structure, sizeof

# -----------------------------------------------------------------------------
# You need to indicate, in the TEMP_FILE_NAME variable, below, the
# fully qualified file name of the TEXT file containing the REGEX(ES) to test !
#
# Note : DOUBLE backslash is needed  ( e.g. D:\\tests\\RegexTests.txt )
#
# The COMMENT_CHAR can be changed, if needed, but keep in mind that, if your regex
# begins with a COMMENT_CHAR, you must escape it, to make the whole regex working.
# ( For instance the regex \#.* colors all the comments of a python file )
#
# If you do not want to be informed, by coloring the current regex, that it didn't match
# set the INFORM_ABOUT_NO_MATCHES flag to False
#
# 2 shortcuts can be configured:
#  - JUMP_FORWARD_SHORTCUT  = to jump to matches in forward mode,
#  - JUMP_BACKWARD_SHORTCUT = for backward mode,
#
# IMPORTANT:
#   If using modifiers (SHIFT, CTRL and ALT) the ordering is critical.
#   A shortcut is defined as a python string using the plus sign to
#   separate modifiers from letters and function keys.
#
#   E.g. 'SHIFT+CTRL+O' means you have to press SHIFT, CTRL and the literal O together.
#   As already said, if you would define 'CTRL+SHIFT+O' it won't work as the script
#   expects that SHIFT is the first modifier, if used, followed by CTRL and then ALT key.
#
#   One can only define shortcuts which aren't used by notepad, scintilla
#   and plugins already. Meaning, you cannot define a shortcut 'CTRL+F'
#   as this is already used to show the file dialog
#
#   The possible function keys are listed in dictionary FUNC_KEYS.
#   Basically, the keys are ESC and F1 to F12

# ---------------------------- <CONFIGURATION AREA> ---------------------------

TEMP_FILE_NAME          = 'C:\\RegexTester.txt'
COMMENT_CHAR            = '#'
INFORM_ABOUT_NO_MATCHES = True
JUMP_FORWARD_SHORTCUT   = 'F9'
JUMP_BACKWARD_SHORTCUT  = 'SHIFT+F9'
# ORDERING IS CRITICAL!! SHIFT CTRL ALT
DEBUG_ON                = True
# ---------------------------- </CONFIGURATION AREA> ---------------------------

FUNC_KEYS = {0x1B:'ESC',
             0x70:'F1',
             0x71:'F2',
             0x72:'F3',
             0x73:'F4',
             0x74:'F5',
             0x75:'F6',
             0x76:'F7',
             0x77:'F8',
             0x78:'F9',
             0x79:'F10',
             0x7A:'F11',
             0x7B:'F12',}

# -----------------------------------------------------------------------------

# winapi constants - used by ctypes
WM_KEYDOWN    = 0x0100
WM_KEYUP      = 0x0101
WM_SYSKEYDOWN = 0x104
WM_SYSKEYUP   = 0x105

WM_SETFOUCS   = 0x07
WM_KILLFOUCS  = 0x08

VK_SHIFT         = 0x10
VK_CONTROL       = 0x11
VK_MENU = VK_ALT = 0x12
VK_UP            = 0x26
VK_DOWN          = 0x28

WndProcType = WINFUNCTYPE(wintypes.LONG, wintypes.HWND, wintypes.UINT, wintypes.WPARAM, wintypes.LPARAM)
GWL_WNDPROC = -4

# -----------------------------------------------------------------------------

_g = globals()
REGEX_TESTER_IS_RUNNING = _g.get('REGEX_TESTER_IS_RUNNING', False)
OLD_WND_PROC = _g.get('OLD_WND_PROC', None)
REGEX_TESTER_HWND = _g.get('REGEX_TESTER_HWND', None)
REGEX_TESTER_INPUT_TAB = _g.get('REGEX_TESTER_INPUT_TAB', 0)
COLORED_DOCS_LIST = _g.get('COLORED_DOCS_LIST', [])
TIME_REGEX = False
USE_PYTHON_ENGINE = False
# -----------------------------------------------------------------------------

editor1.indicSetStyle(8,INDICATORSTYLE.CONTAINER)
editor1.indicSetFore(8,(100,215,100))
editor1.indicSetAlpha(8,55)
editor1.indicSetOutlineAlpha(8,255)
editor1.indicSetUnder(8,True)

editor1.indicSetStyle(9,INDICATORSTYLE.ROUNDBOX)
editor1.indicSetFore(9,(195,215,184))
editor1.indicSetAlpha(9,55)
editor1.indicSetOutlineAlpha(9,255)
editor1.indicSetUnder(9,True)

editor1.indicSetStyle(10,INDICATORSTYLE.ROUNDBOX)
editor1.indicSetFore(10,(95,215,184))
editor1.indicSetAlpha(10,55)
editor1.indicSetOutlineAlpha(10,255)
editor1.indicSetUnder(10,True)

editor2.indicSetStyle(11,INDICATORSTYLE.STRAIGHTBOX)
editor2.indicSetFore(11,(255,0,0))      # (192,192,192)  (255,0,0)
editor2.indicSetAlpha(11,155)
editor2.indicSetOutlineAlpha(11,255)
editor2.indicSetUnder(11,True)

editor2.indicSetStyle(12,INDICATORSTYLE.STRAIGHTBOX)
editor2.indicSetFore(12,(0,255, 0))
editor2.indicSetAlpha(12,155)
editor2.indicSetOutlineAlpha(12,255)
editor2.indicSetUnder(12,True)

editor1.indicSetStyle(13,INDICATORSTYLE.STRAIGHTBOX)
editor1.indicSetFore(13,(0, 0, 255))     # (192,192,192) (0, 0, 255)
editor1.indicSetAlpha(13,155)
editor1.indicSetOutlineAlpha(13,55)
editor1.indicSetUnder(13,True)

editor2.indicSetStyle(14,INDICATORSTYLE.STRAIGHTBOX)
editor2.indicSetFore(14,(255,120,0))      # (192,192,192)  (255,0,0)
editor2.indicSetAlpha(14,155)
editor2.indicSetOutlineAlpha(14,255)
editor2.indicSetUnder(14,True)

# -----------------------------------------------------------------------------

IS_ODD = False
PREVIOUS_REGEX = {}
# POS_FIRST_OCCURANCE = None
# POS_LAST_OCCURANCE = None
NO_MATCH_FOUND = True
MATCH_POSITIONS = {}

CURRENT_BUFFER_ID = None
LAST_POSITION = -1
FORWARD_SEARCH = 0
BACKWARD_SEARCH = 1
REGEX_LINE_CLEAR = 0
REGEX_LINE_NO_MATCH = 1
REGEX_LINE_INVALID = -1

# -----------------------------------------------------------------------------

class GUITHREADINFO(Structure):
    _fields_ = [
                ('cbSize', wintypes.DWORD),
                ('flags', wintypes.DWORD),
                ('hwndActive', wintypes.HWND),
                ('hwndFocus', wintypes.HWND),
                ('hwndCapture', wintypes.HWND),
                ('hwndMenuOwner', wintypes.HWND),
                ('hwndMoveSize', wintypes.HWND),
                ('hwndCaret', wintypes.HWND),
                ('rcCaret', wintypes.RECT)
               ]

def get_focused_window():
    guiThreadInfo = GUITHREADINFO(cbSize=sizeof(GUITHREADINFO))
    windll.user32.GetGUIThreadInfo(0, byref(guiThreadInfo))
    return guiThreadInfo.hwndFocus

# -----------------------------------------------------------------------------

def signature(func, args, kwargs, result):
    func = func.__name__
    result = unicode(result)
    try:
        return u'{}({}, {}) -> {}'.format(func, unicode(args), unicode(kwargs), result)
    except:
        return u'{}(...) -> {}'.format(func, result)

# -----------------------------------------------------------------------------

def time_function(func):
    def inner(*args, **kwargs):
        start = time.time()
        result = func(*args, **kwargs)
        stop = time.time()
        re_engine = u'python' if USE_PYTHON_ENGINE else u'boost'
        call_signature = signature(func, args, kwargs, result)
        console.write(u'{} took {} seconds using {} re engine\n'.format(call_signature, stop-start, re_engine))
        return result
    return inner

# -----------------------------------------------------------------------------

def match_found(m):
    global IS_ODD
    # global POS_FIRST_OCCURANCE
    # global POS_LAST_OCCURANCE
    global MATCH_POSITIONS
    global NO_MATCH_FOUND

    _match_positions = []

    if DEBUG_ON:
        _m = m.span()
        console.write(u'Match:{} = {}\n'.format(_m, editor1.getTextRange(*_m)))

    if m.lastindex > 0:
        editor1.setIndicatorCurrent(8)
        editor1.indicatorFillRange(m.span(0)[0], m.span(0)[1] - m.span(0)[0])

        _match_positions.append(m.span())
        for i in range(1, m.lastindex + 1):
            if (m.span(i)[0] != m.span(0)[0]) or (m.span(i)[1] != m.span(0)[1]):
                editor1.setIndicatorCurrent(9 if IS_ODD else 10)
                editor1.indicatorFillRange(m.span(i)[0], m.span(i)[1] - m.span(i)[0])
                IS_ODD = False if IS_ODD else True

        # POS_LAST_OCCURANCE = m.span(i)

    else:
        editor1.setIndicatorCurrent(9 if IS_ODD else 10)
        editor1.indicatorFillRange(m.span(0)[0], m.span(0)[1] - m.span(0)[0])
        IS_ODD = False if IS_ODD else True
        # POS_LAST_OCCURANCE = m.span(0)
        _match_positions.append(m.span())

    MATCH_POSITIONS[CURRENT_BUFFER_ID].extend(_match_positions)

    # if POS_FIRST_OCCURANCE == None:
        # POS_FIRST_OCCURANCE = m.span(0)
    NO_MATCH_FOUND = False

# -----------------------------------------------------------------------------

def set_current_buffer_id():
    global CURRENT_BUFFER_ID
    doc_idx = notepad.getCurrentDocIndex(0)
    CURRENT_BUFFER_ID = notepad.getFiles()[doc_idx][1]

# -----------------------------------------------------------------------------

def track_document():
    global COLORED_DOCS_LIST
    set_current_buffer_id()
    if not CURRENT_BUFFER_ID in COLORED_DOCS_LIST:
        COLORED_DOCS_LIST.append(CURRENT_BUFFER_ID)

# -----------------------------------------------------------------------------

def clear_indicator():
    for i in [8,9,10,13]:
        editor1.setIndicatorCurrent(i)
        editor1.indicatorClearRange(0,editor1.getTextLength())

# -----------------------------------------------------------------------------

def get_regex_flags():
    global TIME_REGEX
    global USE_PYTHON_ENGINE
    TIME_REGEX = False
    USE_PYTHON_ENGINE = False

    flags = 0
    flag_line = editor2.getLine(0)
    for char in range(flag_line.find('[')+1,flag_line.find(']')):
        if flag_line[char].upper() == 'I':
            flags |= re.IGNORECASE
        elif flag_line[char].upper() == 'L':
            flags |= re.LOCALE
        elif flag_line[char].upper() == 'M':
            flags |= re.MULTILINE
        elif flag_line[char].upper() == 'S':
            flags |= re.DOTALL
        elif flag_line[char].upper() == 'U':
            flags |= re.UNICODE
        elif flag_line[char].upper() == 'X':
            flags |= re.VERBOSE
        elif flag_line[char].upper() == 'T':
            TIME_REGEX = True
        elif flag_line[char].upper() == 'P':
            USE_PYTHON_ENGINE = True
    return flags

# -----------------------------------------------------------------------------

@time_function
def regex_exec(pattern, flags):
    try:
        for i in range(1):
            # editor1.research(pattern, lambda m: m, flags)
            editor1.research(pattern, match_found, flags)
        return True
    except:
        return False

def regex():
    # global POS_FIRST_OCCURANCE
    global PREVIOUS_REGEX
    global NO_MATCH_FOUND
    global MATCH_POSITIONS
    global IS_ODD

    IS_ODD = False
    MATCH_POSITIONS[CURRENT_BUFFER_ID] = []

    clear_indicator()
    pattern = u''

    if (editor2.getSelections() == 1) and (editor2.getSelectionEmpty() == False):
        start = editor2.lineFromPosition(editor2.getSelectionNStart(0))
        end = editor2.lineFromPosition(editor2.getSelectionNEnd(0))
        for i in range(start,end+1):
            pattern += editor2.getLine(i).rstrip('\r\n')
    else:
        pattern = current_regex()

    PREVIOUS_REGEX[CURRENT_BUFFER_ID] = pattern
    NO_MATCH_FOUND = True

    if (pattern != '' and
        pattern != '.' and
        pattern != '()' and not
        pattern.startswith(COMMENT_CHAR) and not
        pattern.isspace() and
        editor2.lineFromPosition(editor2.getCurrentPos()) > 0):

        # POS_FIRST_OCCURANCE = None

        regex_flag = get_regex_flags()

        if TIME_REGEX:
            if regex_exec(pattern,regex_flag):
                track_document()
            else:
                NO_MATCH_FOUND = None
        else:
            try:
                if USE_PYTHON_ENGINE:
                    txt = editor1.getText()
                    for m in re.finditer(pattern, txt, regex_flag):
                        match_found(m)
                else:
                    editor1.research(pattern, match_found, regex_flag)
                track_document()
            except:
                NO_MATCH_FOUND = None

    else:
        NO_MATCH_FOUND = None

# -----------------------------------------------------------------------------
def current_regex():
    return editor2.getCurLine().rstrip()

# -----------------------------------------------------------------------------

def regex_tester_doc_is_current_doc():
    return REGEX_TESTER_INPUT_TAB == notepad.getCurrentBufferID()

# -----------------------------------------------------------------------------

def scroll_to_position(_position):
    if _position is not None:
        start_pos, end_pos = _position
        editor1.setIndicatorCurrent(13)
        editor1.indicatorFillRange(start_pos, end_pos-start_pos)
        current_line = editor1.lineFromPosition(start_pos)
        editor1.ensureVisible(current_line)
        editor1.gotoPos(start_pos)
        editor1.verticalCentreCaret()
        editor1.setXCaretPolicy(CARETPOLICY.EVEN|CARETPOLICY.JUMPS,10)
        editor1.scrollCaret()

# -----------------------------------------------------------------------------

def get_current_regex_position_and_length():
    current_line = editor2.lineFromPosition(editor2.getCurrentPos())
    if current_line != 0 and not editor2.getLine(current_line).startswith(COMMENT_CHAR):
        lenght_line = editor2.lineLength(current_line)
        position = editor2.positionFromLine(current_line)
        return position, lenght_line
    return None, None

# -----------------------------------------------------------------------------

def mark_regex_line(match_indicator):
    position, lenght = get_current_regex_position_and_length()
    if position:
        if match_indicator == REGEX_LINE_NO_MATCH:
                editor2.setIndicatorCurrent(14)
                editor2.indicatorFillRange(position, lenght)
        elif match_indicator == REGEX_LINE_INVALID:
            editor2.setIndicatorCurrent(11)
            editor2.indicatorFillRange(position, lenght)
        else:
            for i in [11,14]:
                editor2.setIndicatorCurrent(i)
                editor2.indicatorClearRange(0, editor2.getTextLength())

# -----------------------------------------------------------------------------

def regex_tester_updateui_callback(args):
    if (regex_tester_doc_is_current_doc() and PREVIOUS_REGEX.get(CURRENT_BUFFER_ID, '') != current_regex()):
        mark_regex_line(REGEX_LINE_CLEAR)
        regex()
        if NO_MATCH_FOUND and INFORM_ABOUT_NO_MATCHES:
            mark_regex_line(REGEX_LINE_NO_MATCH)
        elif NO_MATCH_FOUND is None:
            mark_regex_line(REGEX_LINE_INVALID)
        # else:
            # scroll_to_position(POS_FIRST_OCCURANCE)
# -----------------------------------------------------------------------------

def regex_tester_file_before_close_callback(args):
    if (args['bufferID'] == REGEX_TESTER_INPUT_TAB):
        stop_regex_tester()

# -----------------------------------------------------------------------------

def regex_tester_buffer_activated_callback(args):
    global PREVIOUS_REGEX
    set_current_buffer_id()

    if not PREVIOUS_REGEX.has_key(CURRENT_BUFFER_ID):
        PREVIOUS_REGEX[CURRENT_BUFFER_ID] = ''

    if not REGEX_TESTER_IS_RUNNING:
        global COLORED_DOCS_LIST
        if args['bufferID'] in COLORED_DOCS_LIST:
            clear_indicator()
            COLORED_DOCS_LIST.remove(args['bufferID'])

        if len(COLORED_DOCS_LIST) == 0:
            notepad.clearCallbacks([NOTIFICATION.BUFFERACTIVATED])

# -----------------------------------------------------------------------------

def jump_through_matches(search_direction):
    global MATCH_POSITIONS
    global LAST_POSITION

    if MATCH_POSITIONS.has_key(CURRENT_BUFFER_ID):
        editor1.setIndicatorCurrent(13)
        editor1.indicatorClearRange(0,editor1.getTextLength())

        match_count = len(MATCH_POSITIONS[CURRENT_BUFFER_ID])

        if match_count == 0:
            return

        elif match_count == 1:
            _position = MATCH_POSITIONS[CURRENT_BUFFER_ID][0]

        else:
            current_position = editor1.getCurrentPos()

            if search_direction == 0:
                while True:
                    _position = MATCH_POSITIONS[CURRENT_BUFFER_ID].pop(0)
                    MATCH_POSITIONS[CURRENT_BUFFER_ID].append(_position)

                    if _position[0] != LAST_POSITION:
                        break
            else:
                while True:
                    _position = MATCH_POSITIONS[CURRENT_BUFFER_ID].pop()
                    MATCH_POSITIONS[CURRENT_BUFFER_ID].insert(0, _position)

                    if _position[0] != LAST_POSITION:
                        break

        LAST_POSITION = _position[0]
        scroll_to_position(_position)

# -----------------------------------------------------------------------------

def regex_tester_doc_already_exists():
    files = notepad.getFiles()
    f = [i[1][1] for i in enumerate(files) if i[1][0].upper() == TEMP_FILE_NAME.upper()]
    if f:
        return f[0]
    else:
        return 0

# -----------------------------------------------------------------------------

def color_regex_tester_status():
    status_line = editor2.getLine(0)
    if REGEX_TESTER_IS_RUNNING:
        start = status_line.find('[')
        stop = status_line.find(']')+1
        editor2.setIndicatorCurrent(12)
        editor2.indicatorFillRange(0,20)
        editor2.setIndicatorCurrent(12)
        editor2.indicatorFillRange(start,stop-start)
    else:
        editor2.setIndicatorCurrent(12)
        editor2.indicatorClearRange(0,len(status_line))

# -----------------------------------------------------------------------------

def start_regex_tester():
    if TEMP_FILE_NAME == '':
        notepad.messageBox('You need to indicate, in the TEMP_FILE_NAME variable,\n' +
                           'the fully qualified file name of the TEXT file containing ' +
                           'the REGEX(ES) to test', 'TEMP_FILE_NAME is not set')
        return False

    current_document = 0 if notepad.getCurrentView() == 1 else notepad.getCurrentBufferID()

    global REGEX_TESTER_INPUT_TAB
    REGEX_TESTER_INPUT_TAB = regex_tester_doc_already_exists()
    if REGEX_TESTER_INPUT_TAB == 0 :
        notepad.open(TEMP_FILE_NAME)
        if notepad.getCurrentFilename().upper() == TEMP_FILE_NAME.upper():
            REGEX_TESTER_INPUT_TAB = notepad.getCurrentBufferID()
        else:
            notepad.messageBox('Could not open specified file\n' +
                               '{0}'.format(TEMP_FILE_NAME),
                               'Regex Tester Startup Failed', 0)
            return False
    else:
        notepad.activateBufferID(REGEX_TESTER_INPUT_TAB)

    if notepad.getCurrentView() != 1:
        notepad.menuCommand(MENUCOMMAND.VIEW_GOTO_ANOTHER_VIEW)

    STATUS_LINE = 'RegexTester isActive [] flags:sitp, '

    STATUS_LINE += 'fwd:{}  bwd:{}\r\n'.format(JUMP_FORWARD_SHORTCUT,
                                               JUMP_BACKWARD_SHORTCUT,)

    current_status_line = editor2.getLine(0)
    if 'RegexTester' in current_status_line:
        editor2.replace('RegexTester inActive', 'RegexTester isActive')
    else:
        editor2.insertText(0, STATUS_LINE)

    global REGEX_TESTER_IS_RUNNING
    REGEX_TESTER_IS_RUNNING = True

    color_regex_tester_status()

    set_current_buffer_id()

    global PREVIOUS_REGEX
    PREVIOUS_REGEX[CURRENT_BUFFER_ID] = ''

    editor.callbackSync(regex_tester_updateui_callback, [SCINTILLANOTIFICATION.UPDATEUI])

    if current_document != 0:
        notepad.activateBufferID(current_document)

    editor2.setFocus(True)
    editor2.gotoLine(0)
    notepad.save()

    global REGEX_TESTER_HWND
    REGEX_TESTER_HWND = get_focused_window()

    notepad.callback(regex_tester_file_before_close_callback, [NOTIFICATION.FILEBEFORECLOSE])
    notepad.callback(regex_tester_buffer_activated_callback, [NOTIFICATION.BUFFERACTIVATED])

    return True

# -----------------------------------------------------------------------------

def stop_regex_tester():
    editor.clearCallbacks([SCINTILLANOTIFICATION.UPDATEUI])
    notepad.clearCallbacks([NOTIFICATION.FILEBEFORECLOSE])

    notepad.activateBufferID(REGEX_TESTER_INPUT_TAB)

    if regex_tester_doc_is_current_doc():
        editor2.replace('RegexTester isActive', 'RegexTester inActive')
        notepad.save()

    global REGEX_TESTER_IS_RUNNING
    REGEX_TESTER_IS_RUNNING = False

    clear_indicator()
    color_regex_tester_status()
    mark_regex_line(0)

    global MATCH_POSITIONS
    MATCH_POSITIONS = {}

    _hook.unregister()

    editor1.setFocus(True)

# -----------------------------------------------------------------------------

class Hook():

    def __init__(self):
        self.nppHandle = windll.user32.FindWindowA('Notepad++',None)
        self.oldWndProc = None

        self.SHIFT_PRESSED = False
        self.CTRL_PRESSED = False
        self.ALT_PRESSED = False

    def register(self):
        if REGEX_TESTER_HWND:
            self.new_wnd_proc = WndProcType(self.sciWndProc)
            windll.kernel32.SetLastError(0)
            self.oldWndProc = windll.user32.SetWindowLongA(REGEX_TESTER_HWND, GWL_WNDPROC, self.new_wnd_proc)

            if self.oldWndProc:
                global OLD_WND_PROC
                OLD_WND_PROC = self.oldWndProc
            else:
                _err = 'GetLastError:{}'.format(windll.kernel32.GetLastError())
                notepad.messageBox('Could not register hook:\n{}\n'.format(_err) +
                                    'Shortcuts won\'t work',
                                    'Register Hook Failure', 0)

    def unregister(self):
        if OLD_WND_PROC:
            self.oldWndProc = OLD_WND_PROC
            windll.kernel32.SetLastError(0)
            dummy = windll.user32.SetWindowLongA(REGEX_TESTER_HWND, GWL_WNDPROC, self.oldWndProc)
            if not dummy:
                _err = 'GetLastError:{}'.format(windll.kernel32.GetLastError())
                notepad.messageBox('Could not unregister hook:\n{}\n'.format(_err) +
                                    'It is recommended to save data and restart npp to prevent data loss',
                                    'Unregister Hook Failure', 0)

    def sciWndProc(self, hWnd, msg, wParam, lParam):
        if msg in [WM_KEYDOWN, WM_SYSKEYDOWN]:
            if wParam == VK_SHIFT:
                self.SHIFT_PRESSED = True
            elif wParam == VK_CONTROL:
                self.CTRL_PRESSED = True
            elif wParam == VK_ALT:
                self.ALT_PRESSED = True

        elif msg in [WM_KEYUP,WM_SYSKEYUP]:
            if wParam == VK_SHIFT:
                self.SHIFT_PRESSED = False
            elif wParam == VK_CONTROL:
                self.CTRL_PRESSED = False
            elif wParam == VK_ALT:
                self.ALT_PRESSED = False
            else:
                modifier = 'SHIFT+' if self.SHIFT_PRESSED else ''
                modifier += 'CTRL+' if self.CTRL_PRESSED else ''
                modifier += 'ALT+' if self.ALT_PRESSED else ''
                if wParam in FUNC_KEYS:
                    key_combo = '{}{}'.format(modifier,FUNC_KEYS[wParam])
                else:
                    key_combo = '{}{}'.format(modifier,chr(wParam))

                func = dict_func.get(key_combo, None)
                if func:
                    func()

        elif msg == WM_KILLFOUCS:
            self.SHIFT_PRESSED = False
            self.CTRL_PRESSED = False
            self.ALT_PRESSED = False

        return windll.user32.CallWindowProcA (self.oldWndProc, hWnd, msg, wParam, lParam)

# -----------------------------------------------------------------------------

def main():
    if REGEX_TESTER_IS_RUNNING:
        stop_regex_tester()
    else:
        if start_regex_tester():
            _hook.register()

# -----------------------------------------------------------------------------

dict_func={JUMP_FORWARD_SHORTCUT  : lambda: jump_through_matches(FORWARD_SEARCH),
           JUMP_BACKWARD_SHORTCUT : lambda: jump_through_matches(BACKWARD_SEARCH),}
           # JUMP_TO_FIRST_SHORTCUT : lambda: scroll_to_position(POS_FIRST_OCCURANCE),
           # JUMP_TO_LAST_SHORTCUT  : lambda: scroll_to_position(POS_LAST_OCCURANCE)}

_hook = Hook()
main()