diff options
Diffstat (limited to 'engine/SCons/cpp.py')
| -rw-r--r-- | engine/SCons/cpp.py | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/engine/SCons/cpp.py b/engine/SCons/cpp.py index 44611b8..d9b3a2c 100644 --- a/engine/SCons/cpp.py +++ b/engine/SCons/cpp.py @@ -1,5 +1,5 @@ # -# Copyright (c) 2001 - 2017 The SCons Foundation +# Copyright (c) 2001 - 2019 The SCons Foundation # # Permission is hereby granted, free of charge, to any person obtaining # a copy of this software and associated documentation files (the @@ -21,7 +21,7 @@ # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # -__revision__ = "src/engine/SCons/cpp.py 74b2c53bc42290e911b334a6b44f187da698a668 2017/11/14 13:16:53 bdbaddog" +__revision__ = "src/engine/SCons/cpp.py 72ae09dc35ac2626f8ff711d8c4b30b6138e08e3 2019-08-08 14:50:06 bdeegan" __doc__ = """ SCons C Pre-Processor module @@ -43,15 +43,18 @@ import re # that we want to fetch, using the regular expressions to which the lists # of preprocessor directives map. cpp_lines_dict = { - # Fetch the rest of a #if/#elif/#ifdef/#ifndef as one argument, + # Fetch the rest of a #if/#elif as one argument, + # with white space optional. + ('if', 'elif') : r'\s*(.+)', + + # Fetch the rest of a #ifdef/#ifndef as one argument, # separated from the keyword by white space. - ('if', 'elif', 'ifdef', 'ifndef',) - : '\s+(.+)', + ('ifdef', 'ifndef',): r'\s+(.+)', # Fetch the rest of a #import/#include/#include_next line as one # argument, with white space optional. ('import', 'include', 'include_next',) - : '\s*(.+)', + : r'\s*(.+)', # We don't care what comes after a #else or #endif line. ('else', 'endif',) : '', @@ -61,10 +64,10 @@ cpp_lines_dict = { # 2) The optional parentheses and arguments (if it's a function-like # macro, '' if it's not). # 3) The expansion value. - ('define',) : '\s+([_A-Za-z][_A-Za-z0-9_]*)(\([^)]*\))?\s*(.*)', + ('define',) : r'\s+([_A-Za-z][_A-Za-z0-9_]*)(\([^)]*\))?\s*(.*)', # Fetch the #undefed keyword from a #undef line. - ('undef',) : '\s+([_A-Za-z][A-Za-z0-9_]*)', + ('undef',) : r'\s+([_A-Za-z][A-Za-z0-9_]*)', } # Create a table that maps each individual C preprocessor directive to @@ -82,9 +85,9 @@ del op_list # Create a list of the expressions we'll use to match all of the # preprocessor directives. These are the same as the directives # themselves *except* that we must use a negative lookahead assertion -# when matching "if" so it doesn't match the "if" in "ifdef." +# when matching "if" so it doesn't match the "if" in "ifdef" or "ifndef". override = { - 'if' : 'if(?!def)', + 'if' : 'if(?!n?def)', } l = [override.get(x, x) for x in list(Table.keys())] @@ -94,7 +97,7 @@ l = [override.get(x, x) for x in list(Table.keys())] # a list of tuples, one for each preprocessor line. The preprocessor # directive will be the first element in each tuple, and the rest of # the line will be the second element. -e = '^\s*#\s*(' + '|'.join(l) + ')(.*)$' +e = r'^\s*#\s*(' + '|'.join(l) + ')(.*)$' # And last but not least, compile the expression. CPP_Expression = re.compile(e, re.M) @@ -141,12 +144,12 @@ CPP_to_Python_Ops_Expression = re.compile(expr) # A separate list of expressions to be evaluated and substituted # sequentially, not all at once. CPP_to_Python_Eval_List = [ - ['defined\s+(\w+)', '"\\1" in __dict__'], - ['defined\s*\((\w+)\)', '"\\1" in __dict__'], - ['/\*.*\*/', ''], - ['/\*.*', ''], - ['//.*', ''], - ['(0x[0-9A-Fa-f]*)[UL]+', '\\1'], + [r'defined\s+(\w+)', '"\\1" in __dict__'], + [r'defined\s*\((\w+)\)', '"\\1" in __dict__'], + [r'/\*.*\*/', ''], + [r'/\*.*', ''], + [r'//.*', ''], + [r'(0x[0-9A-Fa-f]*)[UL]+', '\\1'], ] # Replace the string representations of the regular expressions in the @@ -162,7 +165,7 @@ def CPP_to_Python(s): """ s = CPP_to_Python_Ops_Expression.sub(CPP_to_Python_Ops_Sub, s) for expr, repl in CPP_to_Python_Eval_List: - s = expr.sub(repl, s) + s = re.sub(expr, repl, s) return s @@ -207,7 +210,7 @@ class FunctionEvaluator(object): parts = [] for s in self.expansion: - if not s in self.args: + if s not in self.args: s = repr(s) parts.append(s) statement = ' + '.join(parts) @@ -222,11 +225,11 @@ line_continuations = re.compile('\\\\\r?\n') # Search for a "function call" macro on an expansion. Returns the # two-tuple of the "function" name itself, and a string containing the # arguments within the call parentheses. -function_name = re.compile('(\S+)\(([^)]*)\)') +function_name = re.compile(r'(\S+)\(([^)]*)\)') # Split a string containing comma-separated function call arguments into # the separate arguments. -function_arg_separator = re.compile(',\s*') +function_arg_separator = re.compile(r',\s*') |