First Commit

2026-05-31 10:17:09 +07:00
commit 17a9c69379
4547 changed files with 1170384 additions and 0 deletions
@@ -0,0 +1,125 @@
+from collections import namedtuple
+
+grammar = r"""
+file: "ISO-10303-21;" header data_section "END-ISO-10303-21;"
+header: "HEADER" ";" header_entity_list "ENDSEC" ";"
+header_line: (SPECIAL|DIGIT|LOWER|UPPER)* "*"
+data_section: "DATA" ";" (entity_instance)* "ENDSEC" ";"
+entity_instance: simple_entity_instance|complex_entity_instance 
+simple_entity_instance: id "=" simple_record ";" 
+complex_entity_instance: id "=" subsuper_record ";"
+subsuper_record : "(" simple_record_list ")" 
+simple_record_list:simple_record simple_record* 
+simple_record: keyword "("parameter_list?")"
+header_entity_list: file_description file_name file_schema
+file_description: "FILE_DESCRIPTION" "(" parameter_list ")" ";"
+file_name: "FILE_NAME" "(" parameter_list ")" ";"
+file_schema: "FILE_SCHEMA" "(" parameter_list ")" ";"
+id: /#[0-9]+/
+keyword: /[A-Z][0-9A-Z_]*/
+parameter: untyped_parameter|typed_parameter|omitted_parameter
+parameter_list: parameter ("," parameter)*
+list: "(" parameter ("," parameter)* ")" |"("")"
+typed_parameter: keyword "(" parameter ")"|"()" 
+untyped_parameter: string| NONE |INT |REAL |enumeration |id |binary |list
+omitted_parameter:STAR
+enumeration: "." keyword "."
+binary: "\"" ("0"|"1"|"2"|"3") (HEX)* "\"" 
+string: "'" (REVERSE_SOLIDUS REVERSE_SOLIDUS|SPECIAL|DIGIT|SPACE|LOWER|UPPER|CONTROL_DIRECTIVE|"\\*\\")* "'"
+
+STAR: "*"
+SLASH: "/"
+NONE: "$"
+SPECIAL : "!"  
+        | "*"
+        | "$" 
+        | "%" 
+        | "&" 
+        | "." 
+        | "#" 
+        | "+" 
+        | "," 
+        | "-" 
+        | "(" 
+        | ")" 
+        | "?" 
+        | "/" 
+        | ":" 
+        | ";" 
+        | "<" 
+        | "=" 
+        | ">" 
+        | "@" 
+        | "[" 
+        | "]" 
+        | "{" 
+        | "|" 
+        | "}" 
+        | "^" 
+        | "`" 
+        | "~"
+        | "_"
+        | "\""
+        | "\"\""
+        | "''"
+REAL: SIGN?  DIGIT  (DIGIT)* "." (DIGIT)* ("E"  SIGN?  DIGIT (DIGIT)* )?
+INT: SIGN? DIGIT  (DIGIT)* 
+CONTROL_DIRECTIVE: PAGE | ALPHABET | EXTENDED2 | EXTENDED4 | ARBITRARY 
+PAGE : REVERSE_SOLIDUS "S" REVERSE_SOLIDUS LATIN_CODEPOINT
+LATIN_CODEPOINT : SPACE | DIGIT | LOWER | UPPER | SPECIAL | REVERSE_SOLIDUS | APOSTROPHE
+ALPHABET : REVERSE_SOLIDUS "P" UPPER REVERSE_SOLIDUS 
+EXTENDED2: REVERSE_SOLIDUS "X2" REVERSE_SOLIDUS (HEX_TWO)* END_EXTENDED 
+EXTENDED4 :REVERSE_SOLIDUS "X4" REVERSE_SOLIDUS (HEX_FOUR)* END_EXTENDED 
+END_EXTENDED: REVERSE_SOLIDUS "X0" REVERSE_SOLIDUS 
+ARBITRARY: REVERSE_SOLIDUS "X" REVERSE_SOLIDUS HEX_ONE 
+HEX_FOUR: HEX_TWO HEX_TWO
+HEX_TWO: HEX_ONE HEX_ONE 
+HEX_ONE: HEX HEX
+HEX:      "0" 
+        | "1" 
+        | "2" 
+        | "3" 
+        | "4" 
+        | "5"
+        | "6" 
+        | "7" 
+        | "8" 
+        | "9" 
+        | "A" 
+        | "B" 
+        | "C" 
+        | "D" 
+        | "E" 
+        | "F" 
+APOSTROPHE: "'"
+REVERSE_SOLIDUS: "\\"
+DIGIT: "0".."9"
+SIGN: "+"|"-"
+LOWER: "a".."z"
+UPPER: "A".."Z"
+ESCAPE    : "\\" ( "$" | "\"" | CHAR )
+CHAR      : /[^$"\n]/
+WORD      : CHAR+
+SPACE.10  : " "
+
+%ignore /[ \t\f\r\n]/+
+"""
+
+HEADER_FIELDS = {
+    "file_description": namedtuple(
+        "file_description", ["description", "implementation_level"]
+    ),
+    "file_name": namedtuple(
+        "file_name",
+        [
+            "name",
+            "time_stamp",
+            "author",
+            "organization",
+            "preprocessor_version",
+            "originating_system",
+            "authorization",
+        ],
+    ),
+    "file_schema": namedtuple("file_schema", ["schema_identifiers"]),
+}