Experiments/libabacus
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Add function to extract strings from tokens.

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Danila Fedorin 2018-02-11 13:42:05 -08:00
parent 31329a13a6
commit 732ff47f44
1 changed files with 13 additions and 0 deletions
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src/parser.c
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@ -3,6 +3,7 @@
#include "libabacus_util.h" #include "libabacus_util.h"
#include "lexer.h" #include "lexer.h"
#include <stdlib.h> #include <stdlib.h>
#include <string.h>
struct parser_state { struct parser_state {
ll_node* current_node; ll_node* current_node;
@ -55,6 +56,18 @@ libab_result _parser_consume_char(struct parser_state* state, char to_consume) {
libab_result _parse_block(struct parser_state*, tree**, int); libab_result _parse_block(struct parser_state*, tree**, int);
libab_result _parser_extract_token(struct parser_state* state, char** into, lexer_match* match) {
libab_result result = LIBAB_SUCCESS;
size_t string_size = match->to - match->from;
if((*into = malloc(string_size + 1))) {
strncpy(*into, state->string + match->from, string_size);
(*into)[string_size] = '\0';
} else {
result = LIBAB_MALLOC;
}
return result;
}
libab_result _parse_expression(struct parser_state* state, tree** store_into) { libab_result _parse_expression(struct parser_state* state, tree** store_into) {
libab_result result = LIBAB_SUCCESS; libab_result result = LIBAB_SUCCESS;
return result; return result;