mirror of
https://github.com/ggerganov/whisper.cpp.git
synced 2024-12-22 14:02:21 +00:00
30 lines
895 B
C
30 lines
895 B
C
|
// Implements a parser for an extended Backus-Naur form (BNF), producing the
|
||
|
|
// binary context-free grammar format specified by whisper.h. Supports character
|
||
|
|
// ranges, grouping, and repetition operators. As an example, a grammar for
|
||
|
|
// arithmetic might look like:
|
||
|
|
//
|
||
|
|
// root ::= expr
|
||
|
|
// expr ::= term ([-+*/] term)*
|
||
|
|
// term ::= num | "(" space expr ")" space
|
||
|
|
// num ::= [0-9]+ space
|
||
|
|
// space ::= [ \t\n]*
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
#include "whisper.h"
|
||
|
|
#include <vector>
|
||
|
|
#include <map>
|
||
|
|
#include <cstdint>
|
||
|
|
#include <string>
|
||
|
|
|
||
|
|
namespace grammar_parser {
|
||
|
|
struct parse_state {
|
||
|
|
std::map<std::string, uint32_t> symbol_ids;
|
||
|
|
std::vector<std::vector<whisper_grammar_element>> rules;
|
||
|
|
|
||
|
|
std::vector<const whisper_grammar_element *> c_rules() const;
|
||
|
|
};
|
||
|
|
|
||
|
|
parse_state parse(const char * src);
|
||
|
|
void print_grammar(FILE * file, const parse_state & state);
|
||
|
|
}
|