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#include "token.h"
#include <stdio.h>
#include <stddef.h>
#include "hmap.h"
static struct hmap *keywords = NULL;
static const char *keys[] = {
"and",
"or",
"not",
"for",
"in",
"break",
"endfor",
"true",
"false",
"if",
"elif",
"else",
"endif",
"extends",
"block",
"endblock",
NULL,
};
enum token_type values[] = {
TOKEN_AND,
TOKEN_OR,
TOKEN_NOT,
TOKEN_FOR,
TOKEN_IN,
TOKEN_BREAK,
TOKEN_ENDFOR,
TOKEN_TRUE,
TOKEN_FALSE,
TOKEN_IF,
TOKEN_ELIF,
TOKEN_ELSE,
TOKEN_ENDIF,
TOKEN_EXTENDS,
TOKEN_BLOCK,
TOKEN_ENDBLOCK,
TOKEN_EOF,
};
const char *token_types[] = {
[TOKEN_ILLEGAL] = "ILLEGAL",
[TOKEN_EOF] = "EOF",
/* Identifiers/Literals */
[TOKEN_IDENT] = "IDENTIFIER",
[TOKEN_INT] = "INTEGER",
[TOKEN_STRING] = "STRING",
/* Operators */
[TOKEN_ASSIGN] = "=",
[TOKEN_PLUS] = "+",
[TOKEN_MINUS] = "-",
[TOKEN_BANG] = "!",
[TOKEN_ASTERISK] = "*",
[TOKEN_SLASH] = "/",
[TOKEN_LT] = "<",
[TOKEN_GT] = ">",
[TOKEN_LTE] = "<=",
[TOKEN_GTE] = ">=",
[TOKEN_EQ] = "==",
[TOKEN_NOTEQ] = "!=",
/* Keyword-like operators */
[TOKEN_AND] = "and",
[TOKEN_OR] = "or",
[TOKEN_NOT] = "not",
/* Delimiters */
[TOKEN_DOT] = ".",
[TOKEN_COMMA] = ",",
[TOKEN_LPAREN] = "(",
[TOKEN_RPAREN] = ")",
[TOKEN_LBRACE] = "{",
[TOKEN_RBRACE] = "}",
[TOKEN_LBRACKET] = "[",
[TOKEN_RBRACKET] = "]",
[TOKEN_POUND] = "#",
[TOKEN_PERCENT] = "%",
/* Keywords */
[TOKEN_FOR] = "for",
[TOKEN_IN] = "in",
[TOKEN_BREAK] = "break",
[TOKEN_ENDFOR] = "endfor",
[TOKEN_TRUE] = "true",
[TOKEN_FALSE] = "false",
[TOKEN_IF] = "if",
[TOKEN_ELIF] = "elif",
[TOKEN_ELSE] = "else",
[TOKEN_ENDIF] = "endif",
[TOKEN_EXTENDS] = "extends",
[TOKEN_BLOCK] = "block",
[TOKEN_ENDBLOCK] = "endblock",
/* The document content */
[TOKEN_CONTENT] = "CONTENT",
};
void
token_init_keywords(void)
{
if (keywords == NULL) {
keywords = hmap_new();
for (size_t i = 0; keys[i] != NULL; i++) {
hmap_set(keywords, keys[i], values + i);
}
}
}
enum token_type
token_lookup_ident(const struct slice *ident)
{
enum token_type *t = hmap_gets(keywords, ident);
if (t) {
return *t;
}
return TOKEN_IDENT;
}
extern inline const char *
token_type_print(enum token_type t)
{
return token_types[t];
}
sds
token_string(struct token *token, sds str)
{
const char *type = token_type_print(token->type);
sds slicebuf = sdsempty();
sdscatfmt(str, "TOKEN: type: %s, literal: %s", type,
slice_string(&token->literal, slicebuf));
sdsfree(slicebuf);
return str;
}
void
token_free_keywords(void)
{
hmap_free(keywords);
}
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