diff options
Diffstat (limited to 'trunk/src/examples/protobuf_parser.py')
-rw-r--r-- | trunk/src/examples/protobuf_parser.py | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/trunk/src/examples/protobuf_parser.py b/trunk/src/examples/protobuf_parser.py deleted file mode 100644 index 04ce0d8..0000000 --- a/trunk/src/examples/protobuf_parser.py +++ /dev/null @@ -1,100 +0,0 @@ -# protobuf_parser.py
-#
-# simple parser for parsing protobuf .proto files
-#
-# Copyright 2010, Paul McGuire
-#
-
-from pyparsing import (Word, alphas, alphanums, Regex, Suppress, Forward,
- Group, oneOf, ZeroOrMore, Optional, delimitedList, Keyword,
- restOfLine, quotedString, Dict)
-
-ident = Word(alphas+"_",alphanums+"_").setName("identifier")
-integer = Regex(r"[+-]?\d+")
-
-LBRACE,RBRACE,LBRACK,RBRACK,LPAR,RPAR,EQ,SEMI = map(Suppress,"{}[]()=;")
-
-kwds = """message required optional repeated enum extensions extends extend
- to package service rpc returns true false option import"""
-for kw in kwds.split():
- exec("%s_ = Keyword('%s')" % (kw.upper(), kw))
-
-messageBody = Forward()
-
-messageDefn = MESSAGE_ - ident("messageId") + LBRACE + messageBody("body") + RBRACE
-
-typespec = oneOf("""double float int32 int64 uint32 uint64 sint32 sint64
- fixed32 fixed64 sfixed32 sfixed64 bool string bytes""") | ident
-rvalue = integer | TRUE_ | FALSE_ | ident
-fieldDirective = LBRACK + Group(ident + EQ + rvalue) + RBRACK
-fieldDefn = (( REQUIRED_ | OPTIONAL_ | REPEATED_ )("fieldQualifier") -
- typespec("typespec") + ident("ident") + EQ + integer("fieldint") + ZeroOrMore(fieldDirective) + SEMI)
-
-# enumDefn ::= 'enum' ident '{' { ident '=' integer ';' }* '}'
-enumDefn = ENUM_("typespec") - ident('name') + LBRACE + Dict( ZeroOrMore( Group(ident + EQ + integer + SEMI) ))('values') + RBRACE
-
-# extensionsDefn ::= 'extensions' integer 'to' integer ';'
-extensionsDefn = EXTENSIONS_ - integer + TO_ + integer + SEMI
-
-# messageExtension ::= 'extend' ident '{' messageBody '}'
-messageExtension = EXTEND_ - ident + LBRACE + messageBody + RBRACE
-
-# messageBody ::= { fieldDefn | enumDefn | messageDefn | extensionsDefn | messageExtension }*
-messageBody << Group(ZeroOrMore( Group(fieldDefn | enumDefn | messageDefn | extensionsDefn | messageExtension) ))
-
-# methodDefn ::= 'rpc' ident '(' [ ident ] ')' 'returns' '(' [ ident ] ')' ';'
-methodDefn = (RPC_ - ident("methodName") +
- LPAR + Optional(ident("methodParam")) + RPAR +
- RETURNS_ + LPAR + Optional(ident("methodReturn")) + RPAR)
-
-# serviceDefn ::= 'service' ident '{' methodDefn* '}'
-serviceDefn = SERVICE_ - ident("serviceName") + LBRACE + ZeroOrMore(Group(methodDefn)) + RBRACE
-
-# packageDirective ::= 'package' ident [ '.' ident]* ';'
-packageDirective = Group(PACKAGE_ - delimitedList(ident, '.', combine=True) + SEMI)
-
-comment = '//' + restOfLine
-
-importDirective = IMPORT_ - quotedString("importFileSpec") + SEMI
-
-optionDirective = OPTION_ - ident("optionName") + EQ + quotedString("optionValue") + SEMI
-
-topLevelStatement = Group(messageDefn | messageExtension | enumDefn | serviceDefn | importDirective | optionDirective)
-
-parser = Optional(packageDirective) + ZeroOrMore(topLevelStatement)
-
-parser.ignore(comment)
-
-
-test1 = """message Person {
- required int32 id = 1;
- required string name = 2;
- optional string email = 3;
-}"""
-
-test2 = """package tutorial;
-
-message Person {
- required string name = 1;
- required int32 id = 2;
- optional string email = 3;
-
- enum PhoneType {
- MOBILE = 0;
- HOME = 1;
- WORK = 2;
- }
-
- message PhoneNumber {
- required string number = 1;
- optional PhoneType type = 2 [default = HOME];
- }
-
- repeated PhoneNumber phone = 4;
-}
-
-message AddressBook {
- repeated Person person = 1;
-}"""
-
-parser.runTests([test1, test2])
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