srcanamdw/codescanner/scripts/variablenames.py
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0:509e4801c378 1:22878952f6e2
       
     1 # #################################################################
       
     2 # Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     3 # All rights reserved.
       
     4 # 
       
     5 # Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
       
     6 # 
       
     7 # * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
       
     8 # * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
       
     9 # * Neither the name of Nokia Corporation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
       
    10 # 
       
    11 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
       
    12 # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 
       
    13 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
       
    14 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
       
    15 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.#
       
    16 #
       
    17 # variablenames.py
       
    18 #
       
    19 # Checks : Local variables with member/argument names.
       
    20 #
       
    21 # Reason : Local variable names should be of the form localVariable 
       
    22 # and not aLocalVar or iLocalVar. Badly-named variables can be 
       
    23 # misleading and cause maintenance and coding errors.
       
    24 #
       
    25 # #################################################################
       
    26 
       
    27 script = CScript("variablenames")
       
    28 script.iReString = r"""
       
    29 	^\s*				# start of line plus optional whitespace
       
    30 	[A-Z]\w*			# class name e.g. TInt, CActive
       
    31 	\s*[\*&\s]\s*		# optional "*" or "&" plus at least one whitespace char
       
    32 	[ai][A-Z]\w*\s*		# a or i variable name plus optional whitespace
       
    33 	[;\(=]				# ";" or "(" or "="
       
    34 	"""
       
    35 script.iFileExts = ["cpp"]
       
    36 script.iCategory = KCategoryCodingStandards
       
    37 script.iIgnore = KIgnoreCommentsAndQuotes
       
    38 script.iSeverity = KSeverityLow
       
    39 
       
    40 def bracecompare(lines, currentline, rematch, filename):
       
    41 	m = rematch.search(lines[currentline])
       
    42 	if m:
       
    43 		checkline = currentline - 1
       
    44 		bracecount = 1
       
    45 		while (bracecount > 0) and (checkline >= 0):
       
    46 			bracecount -= lines[checkline].count("{")
       
    47 			bracecount += lines[checkline].count("}")
       
    48 			checkline -= 1
       
    49 
       
    50 		while (bracecount == 0) and (checkline >= 0):
       
    51 			if (lines[checkline].upper().find("CLASS") <> -1) or (lines[checkline].upper().find("STRUCT") <> -1):
       
    52 				return 0
       
    53 			
       
    54 			bracecount -= lines[checkline].count("{")
       
    55 			bracecount += lines[checkline].count("}")
       
    56 			checkline -= 1
       
    57 
       
    58 		return 1
       
    59 	else:
       
    60 		return 0
       
    61 
       
    62 script.iCompare = bracecompare
       
    63 scanner.AddScript(script)