libabacus/src/reserved.c

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#include "reserved.h"
#include "string.h"
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#include "util.h"
static const libab_reserved_operator libab_reserved_operators[] = {
{
"=", /* Assignment */
0, /* Lowest precedence */
1 /* Right associative, a = b = 6 should be a = (b = 6) */
}
};
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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) {
size_t i;
for(i = 0; i < element_count; i++) {
if(strcmp(name, libab_reserved_operators[i].op) == 0)
return &libab_reserved_operators[i];
}
return NULL;
}
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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;
}