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Retructured CondStack to prepare the way for ELSE directives.
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@tundra tundra authored on 26 Mar 2004
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 tconfpy.py
 
# Program Information
 
PROGNAME = "tconfpy"
RCSID = "$Id: tconfpy.py,v 1.148 2004/03/27 00:56:25 tundra Exp $"
RCSID = "$Id: tconfpy.py,v 1.149 2004/03/27 01:24:34 tundra Exp $"
VERSION = RCSID.split()[2]
 
# Copyright Information
 
WarnMsgs = [] # Place to store and return warnings
LiteralLines = [] # Place to store and return unprocessed lines
 
 
CondStack = [True,] # Conditional stack
CondStack = [["", True,]] # Conditional stack
TotalLines = 0 # Total number of lines parsed
 
 
##########
Messages["eSTRINGSHORT"] = FILENUM + "Right-Hand-Side, '%s' Shorter Than Min Allowed Length, %s, For Variable '%s'"
Messages["eTYPEBAD"] = FILENUM + "Type Mismatch. '%s' Must Be Assigned Values Of Type %s Only"
Messages["eVALLARGE"] = FILENUM + "%s Is Larger Than The Maximum Allowed, %s, For Variable '%s'"
Messages["eVARNAMESPC"] = FILENUM + "Variable Names May Not Contain Whitespace"
Messages["eVARNONAME"] = FILENUM + "Variable Name Evaluates To Null String. Not Permitted"
Messages["eVARNONAME"] = FILENUM + "Variable Name Evaluates To Null String. Not Permitted"
Messages["eVALSMALL"] = FILENUM + "%s Is Smaller Than The Minimum Allowed, %s, For Variable '%s'"
Messages["eVARREADONLY"] = FILENUM + "Variable '%s' Is Read-Only. Cannot Change Its Value"
Messages["eVARUNDEF"] = FILENUM + "Attempt To Reference Undefined Variable '%s'"
 
ErrMsgs = []
WarnMsgs = []
LiteralLines = []
 
CondStack = [True,] # Always has one entry as a sentinel
CondStack = [["", True],] # Always has one entry as a sentinel
TotalLines = 0
 
# Add any passed symbols to the SymbolTable
 
#####
 
if line.strip() in (LITERAL, ENDLITERAL):
 
if not CondStack[-1]:
if not CondStack[-1][1]:
if DEBUG:
DebugMsg("dLINEIGNORE", (cfgfile, linenum, orig, dNOTINCLUDE))
return
 
 
# Error, if there are more .endifs than conditionals
if not CondStack:
ErrorMsg("eENDIFEXTRA", (cfgfile, linenum))
CondStack.append(False) # Restore sentinel & inhibit further parsing
CondStack.append(["", False]) # Restore sentinel & inhibit further parsing
 
if DEBUG:
DebugMsg("dPARSEDLINE", (cfgfile, linenum, orig, line))
 
if line == DELIML+DELIMR or (len(VarRef.findall(line)) == 1 and \
line[0] == DELIML and line[-1] == DELIMR and\
line.count(DELIML) == line.count(DELIMR) == 1):
 
if not CondStack[-1]:
if not CondStack[-1][1]:
if DEBUG:
DebugMsg("dLINEIGNORE", (cfgfile, linenum, orig, dNOTINCLUDE))
return
 
#####
 
elif FIRSTTOK == INCLUDE:
 
if not CondStack[-1]:
if not CondStack[-1][1]:
if DEBUG:
DebugMsg("dLINEIGNORE", (cfgfile, linenum, orig, dNOTINCLUDE))
return
 
 
# Set parser state based on a successful conditional test
# But it has to be ANDed with the state of the enclosing block
 
enclosing = CondStack[-1]
CondStack.append(condstate and enclosing)
enclosing = CondStack[-1][1]
CondStack.append([IF, condstate and enclosing])
 
# Now reflect this in the parsed line
line = sTRUE
if not condstate:
# definition/assignment.
 
elif EQUAL in line:
 
if not CondStack[-1]:
if not CondStack[-1][1]:
if DEBUG:
DebugMsg("dLINEIGNORE", (cfgfile, linenum, orig, dNOTINCLUDE))
return
 
# For all numeric types, the test is to see if the new
# value is one of the ones enumerated in LegalVals.
#
# For strings, LegalVals is presumed to contain a list
# of regular expressions. The test is to compile each
# of regular expressions. The test is to compile
each
# regex and see if any match the new value.
 
if update and lv: