I have been trying to figure out this same issue for almost 2 weeks now. At first it was shift-reduce errors now its reduce-reduce problems. I have tried doing it so many ways and now I have came to the point where I just need help. I've coded many languages and started almost 10 years ago and this is the first time i've ever actually posted for help.
I am trying to write a grammar class for Angel Script a popular scripting engine I got the BNF grammar from the parser class. You can find the language reference here http://www.angelcode.com/angelscript/sdk/docs/manual/doc_script.html
And within my class for each rule I addded a comment of the BNF grammar I'm trying to copy. At the moment I don't actually use the keywords I define. I will go back and try and clean it up once I can get it working without conflicts. Here is my class http://pastebin.com/FydCTqmU
You should be able to just create a Dll and run that with the grammar explorer and you'll see all the errors. It seems like most of the errors all come from the same issue so I think maybe once I can get that fixed it will fix almost everything. I wrote an app to help me split up the grammar into more less specific sections but I think that led to me hitting more reduce-reduce problems.
I tried condensing my code to hopefully get passed the reduce-reduce errors but it seems to stay exactly the same but only looking way more cluttered. If anyone can help me get it right i'll be more then happy to send them a few hundred dollars via paypal. I'm at the point of just giving up its been over 2 weeks I've been on this. My email is [email protected].
I've gone from shift-reduce to reduce-reduce errors. It seems no matter what I do I end up with problems. I just cant wrap my head around it and I really need help. As I mentioned I'll be more then happy to pay someone for the help just email me. I plan on making a Visual Studio extension like babelua so people can write Angel Script Scripts using Visual Studio and also hopefully adding debugging support. It will be free because I think this will be a great addition. So if anyone can help in any way as long as its working in the end ill be more then happy to make sure they are rewarded. Thank you.
State S0 (Inadequate) Reduce-reduce conflicts on inputs: const identifier void int8 int16 int32 int64 int uint8 uint16 uint32 uint64 uint float double bool ? auto :: Shift items:
script' -> ·script EOF
script -> ·script_0_list
script_0_list -> ·script_0+
script_0+ -> ·script_0+ script_0
script_0+ -> ·script_0
script_0 -> ·import
import -> ·import type import_0_opt identifier paramlist from string ;
script_0 -> ·enum
enum -> ·enum_0_opt enum identifier { identifier enum_1_opt enum_2_list }
enum_0_opt -> ·shared
script_0 -> ·typedef
typedef -> ·typedef primtype identifier ;
script_0 -> ·class
class -> ·class_0_list class identifier class_1_opt { class_2_list }
class_0_list -> ·class_0+
class_0+ -> ·class_0+ class_0
class_0+ -> ·class_0
class_0 -> ·shared
class_0 -> ·abstract
class_0 -> ·final
script_0 -> ·mixin
mixin -> ·mixin class
script_0 -> ·interface
interface -> ·interface_0_opt interface identifier interface_1_opt { interface_2_list }
interface_0_opt -> ·shared
script_0 -> ·funcdef
funcdef -> ·funcdef type funcdef_0_opt identifier paramlist ;
script_0 -> ·virtprop
virtprop -> ·virtprop_0_opt type virtprop_1_opt identifier { virtprop_2_list }
virtprop_0_opt -> ·private
virtprop_0_opt -> ·protected
script_0 -> ·func
func -> ·func_0_opt func_1_opt identifier paramlist func_2_opt func_3_list statblock
func_0_opt -> ·private
func_0_opt -> ·protected
func_0_opt -> ·shared
script_0 -> ·var
var -> ·var_0_opt type identifier var_1_opt var_2_list ;
var_0_opt -> ·private
var_0_opt -> ·protected
script_0 -> ·namespace
namespace -> ·namespace identifier { script }
script_0 -> ·;
Reduce items:
script_0_list -> · [EOF]
enum_0_opt -> · [enum]
class_0_list -> · [class]
interface_0_opt -> · [interface]
virtprop_0_opt -> · [const identifier void int8 int16 int32 int64 int uint8 uint16 uint32 uint64 uint float double bool ? auto ::]
func_0_opt -> · [const ~ identifier void int8 int16 int32 int64 int uint8 uint16 uint32 uint64 uint float double bool ? auto ::]
var_0_opt -> · [const identifier void int8 int16 int32 int64 int uint8 uint16 uint32 uint64 uint float double bool ? auto ::]
Transitions:
script->S1, script_0_list->S2, script_0+->S3, script_0->S4, import->S5, import->S6, enum->S7, enum_0_opt->S8, shared->S9, typedef->S10, typedef->S11, class->S12, class_0_list->S13, class_0+->S14, class_0->S15, abstract->S16, final->S17, mixin->S18, mixin->S19, interface->S20, interface_0_opt->S21, funcdef->S22, funcdef->S23, virtprop->S24, virtprop_0_opt->S25, private->S26, protected->S27, func->S28, func_0_opt->S29, var->S30, var_0_opt->S31, namespace->S32, namespace->S33, ;->S34
