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12/11/2024 09:39:44 AM
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0README.html
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AcManForm.dfm
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LAparser.py
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Setup.ini
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SimpleCalc.py
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SingleForm.dfm
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TAP.py
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__init__.py
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adventureEngine.py
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antlr_grammar.py
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antlr_grammar_tests.py
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apicheck.py
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bf.py
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bigquery_view_parser.py
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booleansearchparser.py
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btpyparse.py
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builtin_parse_action_demo.py
817 bytes
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cLibHeader.py
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chemical_formulas.py
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commasep.py
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configParse.py
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cpp_enum_parser.py
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cuneiform_python.py
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datetime_parse_actions.py
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decaf_parser.py
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delta_time.py
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dfmparse.py
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dhcpd_leases_parser.py
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dictExample.py
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dictExample2.py
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directx_x_file_parser.py
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ebnf.py
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ebnftest.py
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email_address_parser.py
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eval_arith.py
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excel_expr.py
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fourFn.py
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gen_ctypes.py
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getNTPserversNew.py
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greeting.py
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greetingInGreek.py
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greetingInKorean.py
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groupUsingListAllMatches.py
509 bytes
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hola_mundo.py
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html_stripper.py
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html_table_parser.py
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httpServerLogParser.py
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idlParse.py
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include_preprocessor.py
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indentedGrammarExample.py
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indented_block_example.py
712 bytes
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inv_regex.py
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javascript_grammar.g
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jsonParser.py
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left_recursion.py
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lineno_example.py
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listAllMatches.py
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lua_parser.py
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lucene_grammar.py
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macro_expander.py
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make_diagram.py
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matchPreviousDemo.py
586 bytes
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mongodb_query_expression.py
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mozilla.ics
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mozillaCalendarParser.py
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nested.py
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nested_markup.py
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number_words.py
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numerics.py
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oc.py
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one_to_ninety_nine.py
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parseTabularData.py
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parse_python_value.py
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parse_results_sum_example.py
853 bytes
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partial_gene_match.py
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pgn.py
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position.py
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protobuf_parser.py
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pythonGrammarParser.py
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railroad_diagram_demo.py
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range_check.py
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readJson.py
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removeLineBreaks.py
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roman_numerals.py
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rosettacode.py
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scanExamples.py
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searchParserAppDemo.py
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searchparser.py
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select_parser.py
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sexpParser.py
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shapes.py
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simpleArith.py
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simpleBool.py
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simpleSQL.py
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simpleWiki.py
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snmp_api.h
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sql2dot.py
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stackish.py
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statemachine
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tag_emitter.py
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tag_metadata.py
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test_bibparse.py
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unicode_denormalizer.py
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urlExtractor.py
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urlExtractorNew.py
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verilog_parse.py
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withAttribute.py
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wordsToNum.py
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Editing: directx_x_file_parser.py
Close
# # directx_x_file_parser.py # # Parses .x files used for DirectX. # Based on format documentation at http://paulbourke.net/dataformats/directx/ # # Copyright 2024, Paul McGuire # import pyparsing as pp LBRACE, RBRACE, LBRACK, RBRACK, SEMI = pp.Suppress.using_each("{}[];") ident = pp.Word(pp.alphas, pp.alphanums + "_").set_name("identifier") integer = pp.Word("123456789", pp.nums).add_parse_action(lambda t: int(t[0])) # scalar_type = pp.one_of( # "WORD DWORD FLOAT DOUBLE CHAR UCHAR BYTE STRING CSTRING UNICODE", as_keyword=True # ).set_name("base_type") scalar_type = pp.MatchFirst( pp.Keyword.using_each( "WORD DWORD FLOAT DOUBLE CHAR UCHAR BYTE STRING CSTRING UNICODE".split() ) ).set_name("scalar_type") type_ref = scalar_type | ident ARRAY = pp.Keyword("array") array_type_ref = pp.Group(ARRAY + type_ref("element_type")) array_dim = LBRACK + (integer | ident) + RBRACK member_defn = pp.Group( ( array_type_ref("type") + ident("name") + array_dim[...]("dims") | type_ref("type") + ident("name") ) + SEMI ) TEMPLATE = pp.Keyword("template") uuid = pp.Regex( r"<[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}>" ).set_parse_action(lambda t: t[0][1:-1]) open_template_indicator = pp.Combine(LBRACK + "..." + RBRACK, adjacent=False) restriction = pp.Group(type_ref("type") + pp.Optional(uuid)("uuid")) template_restrictions = LBRACK + pp.DelimitedList(restriction) + RBRACK directx_template_defn = ( TEMPLATE + ident("name") + LBRACE + pp.Optional(uuid)("uuid") + member_defn[...]("members") + pp.Optional( open_template_indicator.set_parse_action(lambda: True), default=False )("open_template") + pp.Optional(template_restrictions)("restrictions") + RBRACE ).set_name("template_defn") directx_template_defn.add_parse_action( lambda t: t.__setitem__("closed", not (t.open_template or t.restrictions)) ) directx_template_defn.ignore(pp.cpp_style_comment) def make_template_parser(template_defn: pp.ParseResults) -> pp.ParserElement: """ Create a pyparsing parser from a DirectX template definition. (Limited to templates containing scalar types, or arrays of scalars.) """ float_ = pp.common.real type_map = { "WORD": integer, "DWORD": integer, "FLOAT": float_, "DOUBLE": float_, "CHAR": integer, "UCHAR": integer, "BYTE": integer, "STRING": pp.QuotedString('"'), "CSTRING": pp.QuotedString('"'), "UNICODE": pp.QuotedString('"'), } member_parsers = [] for member in template_defn.members: if member.type in type_map: expr = pp.ungroup(type_map[member.type] + SEMI) elif member.dims: expr = type_map[member.type.element_type] for dim in member.dims: expr = pp.Group(pp.DelimitedList(expr, max=dim) + SEMI) member_parsers.append(expr(member.name)) return ( pp.Keyword(template_defn.name)("type") + ident("name") + LBRACE + pp.Group(pp.And(member_parsers))("fields") + RBRACE ) if __name__ == "__main__": sample = """ some stuff... template Mesh { <3D82AB44-62DA-11cf-AB39-0020AF71E433> DWORD nVertices; array Vector vertices[nVertices]; DWORD nFaces; array MeshFace faces[nFaces]; [ ... ] // An open template } template PolyArray { <3D82AB44-62DA-11cf-AB39-0020AF71E433> DWORD nPolys; array FLOAT polys[nPolys][3]; } template Vector { <3D82AB5E-62DA-11cf-AB39-0020AF71E434> FLOAT x; FLOAT y; FLOAT z; } // A closed template template FileSystem { <3D82AB5E-62DA-11cf-AB39-0020AF71E435> STRING name; [ Directory <3D82AB5E-62DA-11cf-AB39-0020AF71E436>, File <3D82AB5E-62DA-11cf-AB39-0020AF71E437> ] // A restricted template } more stuff... template mytemp { DWORD myvar; DWORD myvar2; } template container { DWORD count; array mytemp tempArray[count]; } """ for template in directx_template_defn.search_string(sample): # print(template.dump()) print( f"Name: {template.name!r}" f" UUID: {template.uuid}" f" Open: {template.open_template!r}" f" Closed: {template.closed!r}" f" Restricted: {bool(template.restrictions)}" ) # print() # create railroad diagram pp.autoname_elements() directx_template_defn.create_diagram( "directx_x_file_parser.html", show_results_names=True, show_groups=False ) vector_template = directx_template_defn.parse_string( """\ template Vector { <3D82AB5E-62DA-11cf-AB39-0020AF71E434> STRING label; FLOAT x; FLOAT y; FLOAT z; } """ ) vector_parser = make_template_parser(vector_template) vector_parser.create_diagram( "directx_x_vector_parser.html", show_results_names=True, show_groups=False ) v = vector_parser.parse_string('Vector p1 {"datum_A"; 1.0; 3.0; 5.0;}') print(v.dump()) vector_template = directx_template_defn.parse_string( """\ template Vector { <3D82AB5E-62DA-11cf-AB39-0020AF71E434> STRING label; array FLOAT coords[3]; } """ ) vector_parser = make_template_parser(vector_template) vector_parser.create_diagram( "directx_x_vector_parser.html", show_results_names=True, show_groups=False ) v = vector_parser.parse_string('Vector p1 {"datum_A"; 1.0, 3.0, 5.0;}') print(v.dump())