# seb_spec.gbnf
# Cherry-picked from sovereign-xml-compiler/grammars/sovereign_prompt.gbnf
# Extended: enforces valid SEB XML specification structure.
# Use with llama.cpp: --grammar-file seb_spec.gbnf
#
# This grammar makes it PHYSICALLY IMPOSSIBLE for the model to output
# malformed SEB XML specs. Token selection is masked at the softmax layer.
# Connection to Gates Normalization (PAR-004):
#   G_P(D_M) = softmax(logits_M + b_P)
#   b_P = -inf for grammar-violating tokens
#   Sum over valid tokens = 1 (simplex constraint preserved)

root ::= seb-spec

seb-spec ::= "<SEB_SPECIFICATION" ws attrs ws ">" ws
             meta ws
             axioms ws
             layer* ws
             pipeline? ws
             genesis? ws
             "</SEB_SPECIFICATION>"

attrs ::= (ws attr)*
attr  ::= [a-zA-Z_]+ "=\"" [^"]* "\""

meta ::= "<meta>" ws
         "<version>" semver "</version>" ws
         "<status>" status-val "</status>" ws
         "<parent>" text "</parent>" ws
         "</meta>"

semver     ::= [0-9]+ "." [0-9]+ "." [0-9]+
status-val ::= "DRAFT" | "FROZEN" | "ACTIVE" | "DEPRECATED"

axioms ::= "<axioms>" ws axiom+ ws "</axioms>"
axiom  ::= "<axiom" ws "id=\"" text "\"" ws "priority=\"" [0-9]+ "\">" text "</axiom>"

layer ::= "<layer" ws "id=\"" text "\">" ws
          layer-field* ws
          artifacts? ws
          "</layer>"

layer-field ::= "<field" ws "name=\"" text "\">" text "</field>" ws

artifacts ::= "<artifacts>" ws artifact+ ws "</artifacts>"
artifact   ::= "<artifact" ws "id=\"" text "\"" ws "type=\"" text "\">" ws
               content? ws
               "</artifact>"

content ::= "<content>" ws text ws "</content>"

pipeline ::= "<pipeline>" ws stage+ ws "</pipeline>"
stage    ::= "<stage" ws "id=\"" text "\">" ws
             stage-field* ws
             gate? ws
             "</stage>"
stage-field ::= "<field" ws "name=\"" text "\">" text "</field>" ws
gate        ::= "<gate>" text "</gate>"

genesis ::= "<genesis>" ws constant+ ws "</genesis>"
constant ::= "<constant" ws "name=\"" text "\""
             (ws "hex=\"" hex-string "\"")?
             (ws "value=\"" text "\"")? ws
             "/>"

hex-string ::= [0-9a-fA-F]+

# SEB-specific element types
seb-element ::= "<axiom>" | "<layer>" | "<kernel>" | "<policy>" | "<job>" |
                "<verification>" | "<proof>" | "<theorem>" | "<invariant>"

text ::= [^<>\"]+
ws   ::= [ \t\n\r]*