interpret/src/lex.h
2022-07-24 17:38:56 -07:00

64 lines
1.3 KiB
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 FOR_SYMBOL(X) \
\
/* Results. */ \
X(END, 0), \
X(SYNTAX, 0), \
X(ILLEGAL, 0), \
X(NOT_FOUND, 0), \
\
X(ORDERED_LIST_ITEM, &no_vt), \
X(LIST_ITEM, 0), \
X(COMPLETE, 0), \
X(CANCELLED, 0), \
X(HEADING, 0), \
/* Text. */ \
X(PARAGRAPH, 0), \
X(TEXT, &word_vt), \
/*This is lazy.*/X(CAPTION, &word_vt), \
\
/* Edicts. */ \
X(SOURCE, &word_vt), \
X(DEFAULT, 0), \
X(SOURCE_RECALL, &word_vt), \
X(LOCATION, 0), \
X(LOCATION_SAVE, 0), \
X(LOCATION_RECALL, 0), \
X(SIGNIFICANT, 0), \
X(SIGNIFICANT_RECALL, 0), \
X(EDITORIALIZING, 0), \
\
/* Arguments. */ \
X(ARG_KEYWORD, 0), \
X(ARG_DATE, &date_vt), \
X(ARG_NATURAL, &no_vt), \
X(ARG_RESTRICT_TEXT, &word_vt), \
X(ARG_END_TEXT, &word_vt), \
\
/* Bible */ \
X(KJV_BOOK, &kjv_book_vt), \
X(KJV_CHAPTER_VERSE, &word_vt), \
X(KJV_TEXT, &word_vt), \
X(KJV_NEXT, 0)
struct lex {
size_t line;
#define ARG1(n, m) n
enum lex_symbol { FOR_SYMBOL(ARG1) } symbol;
#undef ARG1
const char *s0, *s1;
};
#define STR1(n, m) #n
static const char *const lex_symbols[] = { FOR_SYMBOL(STR1) };
#undef X
void lex_reset(const char *const buffer);
int lex_next(struct lex *);