interpret/src/lex.h
2022-07-06 10:02:28 -07:00

40 lines
947 B
C

#include <stddef.h>
int lex_looks_like_year(const char *, int *);
int lex_looks_like_month(const char *);
int lex_looks_like_day(const char *);
#define LEX_SYMBOL \
\
/* Results. */ \
X(END), X(SYNTAX), X(ILLEGAL), X(NOT_FOUND), \
\
/* Text. */ \
X(PARAGRAPH), X(TEXT), X(CAPTION), \
\
/* Edicts. */ \
X(SOURCE), X(DEFAULT), X(SOURCE_RECALL), \
X(LOCATION), X(LOCATION_SAVE), X(LOCATION_RECALL), \
X(SIGNIFICANT), X(SIGNIFICANT_RECALL), X(EDITORIALIZING), \
\
/* Arguments. */ \
X(ARG_KEYWORD), X(ARG_DATE), X(ARG_NATURAL), X(ARG_FREEFORM), \
\
/* Bible */ \
X(BIBLE_BOOK), X(BIBLE_CHAPTER_VERSE), X(BIBLE_TEXT), X(BIBLE_NEXT)
struct lex {
#define X(n) n
enum lex_symbol { LEX_SYMBOL } symbol;
#undef X
int ws_before, new_paragraph;
const char *s0, *s1;
size_t line;
};
#define X(n) #n
static const char *const lex_symbols[] = { LEX_SYMBOL };
#undef X
void lex_reset(const char *const buffer);
int lex_next(struct lex *);