89 lines
2.1 KiB
C
89 lines
2.1 KiB
C
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#ifndef PARCEL_GRAMMAR_PARSER_H
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#define PARCEL_GRAMMAR_PARSER_H
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#include <parcel/utility/utility.h>
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#include <logger.h>
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typedef struct pac_grammar pac_grammar_s;
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typedef struct pac_rule pac_rule_s;
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typedef struct pac_variant pac_variant_s;
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typedef struct pac_literal pac_literal_s;
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typedef struct pac_item pac_item_s;
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// pac_item_e: The type of an item of a rule variant.
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//
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// A rule (-variant) is made up of multiple items which
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// can have one of the types that are listed in this enum.
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typedef enum
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{
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PAC_ITEM_INVALID = 0x00,
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PAC_ITEM_REFERENCE,
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PAC_ITEM_LITERAL,
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PAC_ITEM_SET,
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} pac_item_e;
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typedef enum
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{
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PAC_SET_INVALID = 0x00,
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PAC_SET_RUNE,
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PAC_SET_WORD,
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PAC_SET_INTEGER,
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PAC_SET_FLOAT
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} pac_set_e;
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struct pac_literal
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{
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usz_t length;
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char *string;
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};
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struct pac_item
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{
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pac_item_e type;
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union pac_item_data
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{
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pac_literal_s literal;
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pac_set_e set;
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pac_rule_s *reference;
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} data;
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};
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struct pac_variant
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{
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usz_t num_items;
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pac_item_s *items;
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};
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struct pac_rule
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{
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char *name;
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usz_t num_variants;
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pac_variant_s *variants;
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};
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struct pac_grammar
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{
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usz_t len_source;
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char *source;
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usz_t num_rules;
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pac_rule_s *rules;
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pac_logger_s log;
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pac_arena_s result_arena;
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};
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pac_grammar_s pac_convert_grammar (char *source, usz_t len_source);
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void pac_delete_grammar (pac_grammar_s grammar);
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void pac_display_log (pac_logger_s *logger);
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void pac_display_grammar (pac_grammar_s grammar);
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#endif // PARCEL_GRAMMAR_PARSER_H
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