Mismatch when compared between grammar builder parse tree & engine parse tree

[ashwinfernandes]

Hi @ridencww ,

When using this grammar with the builder & the engine, few of the reductions go missing in the tree with the engine parser. Could you please take a look at it. I'm using goldparser for the first time, so please let me know if there is something wrong in my grammar implementation or engine usage.

MANUFACTURER 252, DEVICE_TYPE 1, DEVICE_REVISION 1, DD_REVISION 1, MANUFACTURER_EXT "xyz"

BLOCK DeviceBlock { TYPE PHYSICAL; NUMBER 1; }

The grammar is for EDDL(Electronic device description language). The grammar implementation is as seen below.

"Name" = 'EDDL grammar' "Author" = 'Ashwin Jason Fernandes' "Version" = 'The version of the grammar and/or language' "About" = 'A short description of the grammar'

"Case Sensitive" = True "Start Symbol" =

{Hex Digit} = {Digit} + [abcdefABCDEF] {Oct Digit} = [01234567]

{String Ch} = {Printable} - ["]

{Id Head} = {Letter} + [_] {Id Tail} = {Id Head} + {Digit}

DecLiteral = [123456789]{digit}*
HexLiteral = 0X | 0x{Hex Digit}+ OctLiteral = 0{Oct Digit} FloatLiteral = {Digit}'.'{Digit}+

Id = {Id Head}{Id Tail}*

! =================================================================== ! Comments ! ===================================================================

Comment Start = '/' Comment End = '/' Comment Line = '//'

! ------------------------------------------------- ! Character Sets ! -------------------------------------------------

{String Chars} = {Printable} + {HT} - ["]

! ------------------------------------------------- ! Terminals ! -------------------------------------------------

!Identifier = {Letter}{AlphaNumeric} StringLiteral = '"' {String Chars}\ '"'

! ------------------------------------------------- ! Constants / Literals ! -------------------------------------------------

::= | StringLiteral ::= | FloatLiteral ::= DecLiteral | HexLiteral | OctLiteral ! ------------------------------------------------- ! Rules ! ------------------------------------------------- ! The grammar starts below ::= | | ! =================================================================== ! EDD Identification Declaration ! =================================================================== ::= ',' | ::= ::= MANUFACTURER | DEVICE_TYPE | DEVICE_REVISION | DD_REVISION | MANUFACTURER_EXT ::= | | | | | | ! =================================================================== ! Type Declaration ! =================================================================== ! =================================================================== ! Block Declaration ! =================================================================== ::= BLOCK Id '{' '}' ::= TYPE ';' | NUMBER';' | ::= PHYSICAL | TRANSDUCER | FUNCTION ! =================================================================== ! Variable Declaration ! =================================================================== ::= VARIABLE Id '{' '}' ::= | | | | | | | ::= TYPE ';' | TYPE '(' ')'';' | TYPE '{''}' | TYPE '(' ')''{''}' ::= CLASS ';' ::= CONTAINED | DIAGNOSTIC | LOCAL ::= LABEL StringLiteral';' | LABEL '['Id']'';' ::= HELP StringLiteral';' | HELP '['Id']'';' ::= CONSTANT_UNIT '['Id']'';' | CONSTANT_UNIT StringLiteral';' ::= SCALING_FACTOR ';' | MAX_VALUE ';' | MIN_VALUE ';' | DEFAULT_VALUE ';' | INITIAL_VALUE ';' | | | ::= INTEGER | UNSIGNED_INTEGER | FLOAT | ASCII | ENUMERATED | BIT_ENUMERATED ::= '{'','StringLiteral'}'','|'{'','StringLiteral'}' ::= '{'','StringLiteral','StringLiteral',''}'',' | '{'','StringLiteral','StringLiteral',''}' ::= READ_TIMEOUT Id';' | READ_TIMEOUT ';' ::= HANDLING ';'|HANDLING '&' ';' ::= READ | WRITE ::= | '&' | ::= HARDWARE | SOFTWARE | CORRECTABLE | UNCORRECTABLE ! =================================================================== ! Array Declaration ! =================================================================== ::= ARRAY Id '{' '}' ::= | TYPE Id ';' | NUMBER_OF_ELEMENTS ';' | ! =================================================================== ! Collection Declaration ! =================================================================== ::= COLLECTION Id '{' '}' | COLLECTION OF VARIABLE Id '{' '}' ::= | MEMBERS '{''}'| ::= Id','Id';'| ! =================================================================== ! List Declaration ! =================================================================== ::= LIST Id '{' '}' ::= | TYPE Id ';' | CAPACITY ';' | COUNT ';' | COUNT Id';' | ! =================================================================== ! Command Declaration ! =================================================================== ::= COMMAND Id '{' '}' ::= BLOCK Id';' | INDEX ';' | NUMBER ';' | OPERATION ';' | TRANSACTION '{' '}' | RESPONSE_CODES '{' '}' | ::= READ | WRITE | COMMAND | DATA_EXCHANGE ::= REQUEST '{''}' | REPLY '{''}' | ::= '['']' | ::= Id',' | Id | ::= Id',' | Id | ::= ','','StringLiteral';' | ::= SUCCESS | MISC_ERROR | MISC_WARNING | DATA_ENTRY_ERROR | MODE_ERROR ::= ','StringLiteral | ! =================================================================== ! Component Declaration ! =================================================================== ::= COMPONENT Id '{' '}' ::= | | CAN_DELETE ';' | CLASSIFICATION ';' | DECLARATION '{' '}' | PROTOCOL Id';' ::= TRUE | FALSE ::= NETWORK_COMPONENT ::= | The grammar looks a bit funny when you view it. It looks fine in the edit mode. If you have any problems, please let me know. Will mail you the grammar. Regards, Ashwin

[ashwinfernandes]

Found out my mistake, i had enabled trimreduction & therefore it gave me an optimized tree.

Thanks, Ashwin