Experiments/libabacus
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Register reserved operators as tokens.

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Danila Fedorin
2018-03-16 23:09:11 -07:00
parent d25c1a379a
commit 27acfb0be7
5 changed files with 55 additions and 3 deletions
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25
src/reserved.c
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@@ -1,5 +1,6 @@
#include "reserved.h"
#include "string.h"
#include "util.h"
static const libab_reserved_operator libab_reserved_operators[] = {
{
@@ -8,10 +9,10 @@ static const libab_reserved_operator libab_reserved_operators[] = {
1 /* Right associative, a = b = 6 should be a = (b = 6) */
}
};
static const size_t element_count =
sizeof(libab_reserved_operators) / sizeof(libab_reserved_operator);
const libab_reserved_operator* libab_find_reserved_operator(const char* name) {
static const size_t element_count =
sizeof(libab_reserved_operators) / sizeof(libab_reserved_operator);
size_t i;
for(i = 0; i < element_count; i++) {
if(strcmp(name, libab_reserved_operators[i].op) == 0)
@@ -19,3 +20,23 @@ const libab_reserved_operator* libab_find_reserved_operator(const char* name) {
}
return NULL;
}
libab_result libab_register_reserved_operators(libab_lexer* lexer) {
libab_result result = LIBAB_SUCCESS;
size_t i;
for(i = 0; i < element_count && result == LIBAB_SUCCESS; i++) {
result = libab_convert_lex_result(eval_config_add(&lexer->config,
libab_reserved_operators[i].op, TOKEN_OP_RESERVED));
}
return result;
}
libab_result libab_remove_reserved_operators(libab_lexer* lexer) {
libab_result result = LIBAB_SUCCESS;
size_t i;
for(i = 0; i < element_count && result == LIBAB_SUCCESS; i++) {
result = libab_convert_lex_result(eval_config_remove(&lexer->config,
libab_reserved_operators[i].op, TOKEN_OP_RESERVED));
}
return result;
}