def map_reduce(file_path=None):
from parser import parse
from lexer import lexer
from utils import function, debug_msg, insert_in_tbl
#build hash table from file or scanning the complete source file
#check for input args
#global the_tbl
the_tbl = global_tbl()
if not file_path:
file_path = "."
print "No file_path specified for parsing the source code starting from current directory"
if os.path.isfile(file_path) and file_path.endswith(".tbl"):
#read file to create the_tbl
f = open(file_path)
entry = None
func = None
for line in f:
if line.startswith("&#?filename:"):
#acquire the global_etntry_tbl lock and add this entry
#for this file
if entry:
the_tbl.lock.qcquire()
the_tbl.tbl[entry.get_file_name()] = entry
the_tbl.lock.release()
filename_start = line.find(':')
file_name = line[filename_start+1:]
print "File name is: ", file_name
entry = global_tbl_entry()
entry.set_file_name(file_name)
elif line.startswith("\t&#?func_name:"):
# &#?func_name:func&#?func_args:int a&#?macro_name:MSG&#?message:I am Nandan&#?msg_args:
func = function()
function_name_start = line.find(':')
function_name_end = line.index("&#?func_args:")
func_name = line[function_name_start+1:function_name_end]
print "Func name: ", func_name
function_args_start = function_name_end + 13
func_args_end = line.index("&#?macro_name:")
func_args = line[function_args_start+1:func_args_end]
func.set_name(func_name)
func.set_args(func_args)
print "Func args: ", func_args
#message
dbg_msg = debug_msg()
dbg_macro_start = line.find("&#?macro_name:") + 14
dbg_msg_macro_end = line.index("&#?message:")
macro_name = line[dbg_macro_start:dbg_msg_macro_end]
print "Macro name: ", macro_name
dbg_msg.set_macro_name(macro_name)
dbg_msg_start = dbg_msg_macro_end + 11
dbg_msg_end = line.index("&#?msg_args:")
msg = line[dbg_msg_start:dbg_msg_end]
print "message: ", msg
dbg_msg.set_message(msg)
dbg_msg_args_start = dbg_msg_end + 12
args = line[dbg_msg_args_start:]
dbg_msg.set_args(args)
print "msg args: ", args
insert_in_tbl(entry,dbg_msg, func)
#insert the last entry
if entry:
the_tbl.lock.acquire()
the_tbl.tbl[entry.get_file_name()] = entry
the_tbl.lock.release()
return the_tbl.tbl
#else scan/parse directory to make the_tbl
print file_path
#create table write table
the_tbl = make_tbl(file_path)
save_tbl_in_file(the_tbl.tbl)
return the_tbl
def parse_file(self):
from lexer import lexer, token
from parser import parser
from utils import function, debug_msg
filename = self.filename
entry = global_tbl_entry()
print "parser: Lexing on file:", self.filename
body = file(self.filename, 'rt').read()
print 'parser: rORIGINAL:', repr(body)
print
print
print 'parser: -------------TOKENS:------------------'
lexer = lexer(body)
parser = parser()
func_name = None
curly_brace = 0
small_brace = 0
args = ""
for token in lexer:
#first find a function name store id and lookahead if brace move to state
print "parser: parsing token: ", token.get_value()," of type: ", token.get_type()
if parser.get_state() == "Begin":
print "parser: parser state Begin"
if token.get_type() == "Id":
parser.set_state("FuncName")
func_name = token.get_value()
elif parser.get_state() == "FuncName":
type(token.get_value())
type(token.get_type())
if token.get_value() == "(":
parser.set_state("FuncArgs")
elif token.get_type() == "Id":
parser.set_state("FuncName")
func_name = token.get_value()
else:
parser.set_state("Begin")
elif parser.get_state() == "FuncArgs":
if token.get_value() == ")":
parser.set_state("FuncBody")
elif token.get_value() == ",":
print "parser: Comma"
elif token.get_type() == "Id":
args+=token.get_value()
else:
print "parser: found: ", token.get_value()," while parser in state Args"
#reset parser
parser.set_state("Begin")
elif parser.get_state() == "FuncBody":
if token.get_value() == "{":
#confirmed function update everything
parser.set_state("Function")
aFunction = function()
aFunction.set_name(func_name)
aFunction.set_args(args);
print "parser: ***********Found a function by name : ", func_name, " **************************"
curly_brace += 1
#insert function
elif token.get_type() == "Id":
parser.set_state("FuncName")
func_name = token.get_value()
else:
parser.set_state("Begin")
elif parser.get_state() == "Function":
if token.get_value() == "}":
curly_brace -= 1
if curly_brace == 0:
print "parser: ********* Finished function: ",func_name ,"******************"
#function ends update everything
parser.set_state("Begin")
#close messages for this func
elif token.get_value() == "{":
curly_brace += 1
elif token.get_type() == "Debug":
parser.set_state("Debug")
dbg_msg = debug_msg()
print "MAcro Name ===================================================",token.get_value()
dbg_msg.set_macro_name(token.get_value())
elif token.get_type() == "Entry/Exit":
parser.set_state("DebugEntry/Exit")
dbg_msg = debug_msg()
print "MAcro Name ==================================================",token.get_value()
dbg_msg.set_macro_name(token.get_value())
elif parser.get_state() == "Debug":
if token.get_value() == "(":
if small_brace == 0:
parser.set_state("DbgMsg")
small_brace += 1
elif parser.get_state() == "DbgMsg":
if token.get_type() == "Quotes":
dbg_msg.set_message(token.get_value())
elif token.get_value() == ")":
small_brace -= 1
if small_brace == 0:
print "parser: **** Finished one Debug message***** "
insert_in_tbl(entry, dbg_msg, aFunction);
parser.set_state("Function")
else:
parser.set_state("DbgMsgArgs")
elif parser.get_state() == "DbgMsgArgs":
if token.get_value() == ")":
small_brace -= 1
if small_brace == 0:
print "parser: **** Finished one Debug message***** "
insert_in_tbl(entry, dbg_msg,aFunction);
parser.set_state("Function")
if token.get_value() == "(":
small_brace += 1
if token.get_type() in ["Id","Quotes"]:
dbg_msg.append_args(token.get_value())
print "parser: ======TESTING: Token value: ",token.get_value()
print "parser: ======TESTING: Token type: ",token.get_type()
print "parser: ***********all tables ***********************"
print
print "parser: -----------Rest-------------------"
for val in entry.rest_in_list:
print "parser: Function: ", val.get_function().get_func_name(), " Message: ", val.get_dbg_msg().get_message()," Debug Args: ", val.get_dbg_msg().get_args()
print
print "parser: ----------cmplt_msg_tbl--------------------"
for hash_key in entry.cmplt_msg_tbl.keys():
val = entry.cmplt_msg_tbl[hash_key]
print "parser: Function: ", val.get_function().get_func_name(), " Message: ", val.get_dbg_msg().get_message()," Debug Args: ", val.get_dbg_msg().get_args()
print
print "parser: ----------partial_msg_tbl--------------------"
for hash_key in entry.partial_msg_tbl.keys():
print hash_key
val = entry.partial_msg_tbl[hash_key]
print "parser: Function: ", val.get_function().get_func_name(), " Message: ", val.get_dbg_msg().get_message()," Debug Args: ", val.get_dbg_msg().get_args()
return entry
