1 files changed, 72 insertions, 0 deletions
diff --git a/trunk/src/examples/configParse.py b/trunk/src/examples/configParse.py
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+++ b/trunk/src/examples/configParse.py
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+#
+# configparse.py
+#
+# an example of using the parsing module to be able to process a .INI configuration file
+#
+# Copyright (c) 2003, Paul McGuire
+#
+
+from pyparsing import \
+        Literal, Word, ZeroOrMore, Group, Dict, Optional, \
+        printables, ParseException, restOfLine, empty
+import pprint
+
+
+inibnf = None
+def inifile_BNF():
+    global inibnf
+    
+    if not inibnf:
+
+        # punctuation
+        lbrack = Literal("[").suppress()
+        rbrack = Literal("]").suppress()
+        equals = Literal("=").suppress()
+        semi   = Literal(";")
+        
+        comment = semi + Optional( restOfLine )
+        
+        nonrbrack = "".join( [ c for c in printables if c != "]" ] ) + " \t"
+        nonequals = "".join( [ c for c in printables if c != "=" ] ) + " \t"
+        
+        sectionDef = lbrack + Word( nonrbrack ) + rbrack
+        keyDef = ~lbrack + Word( nonequals ) + equals + empty + restOfLine
+        # strip any leading or trailing blanks from key
+        def stripKey(tokens):
+            tokens[0] = tokens[0].strip()
+        keyDef.setParseAction(stripKey)
+        
+        # using Dict will allow retrieval of named data fields as attributes of the parsed results
+        inibnf = Dict( ZeroOrMore( Group( sectionDef + Dict( ZeroOrMore( Group( keyDef ) ) ) ) ) )
+        
+        inibnf.ignore( comment )
+        
+    return inibnf
+
+
+pp = pprint.PrettyPrinter(2)
+
+def test( strng ):
+    print(strng)
+    try:
+        iniFile = open(strng)
+        iniData = "".join( iniFile.readlines() )
+        bnf = inifile_BNF()
+        tokens = bnf.parseString( iniData )
+        pp.pprint( tokens.asList() )
+
+    except ParseException as err:
+        print(err.line)
+        print(" "*(err.column-1) + "^")
+        print(err)
+    
+    iniFile.close()
+    print()
+    return tokens
+    
+if __name__ == "__main__":
+	ini = test("setup.ini")
+	print("ini['Startup']['modemid'] =", ini['Startup']['modemid']) 
+	print("ini.Startup =", ini.Startup)
+	print("ini.Startup.modemid =", ini.Startup.modemid)
+