Experiments/libabacus
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Implement function to pop things off the stack until parenth.

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Danila Fedorin 2018-02-17 14:40:30 -08:00
parent 1157b126ca
commit 101847e70d
1 changed files with 13 additions and 0 deletions
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src/parser.c
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@ -115,6 +115,19 @@ libab_result _parser_append_op_node(struct parser_state* state, libab_lexer_matc
} }
return result; return result;
} }
libab_result _parser_pop_brackets(struct parser_state* state, ll* pop_from, ll* push_to, char bracket, int* success) {
libab_result result = LIBAB_SUCCESS;
libab_lexer_match* remaining_match;
while(result == LIBAB_SUCCESS && _parser_match_is_op(pop_from->tail->data)) {
libab_lexer_match* new_match = ll_poptail(pop_from);
result = _parser_append_op_node(state, new_match, push_to);
free(new_match);
}
remaining_match = (pop_from->tail) ? pop_from->tail->data : NULL;
*success = remaining_match && (remaining_match->type == TOKEN_CHAR) && (state->string[remaining_match->from] == bracket);
return result;
}
libab_result _parse_expression(struct parser_state* state, libab_tree** store_into) { libab_result _parse_expression(struct parser_state* state, libab_tree** store_into) {
libab_result result = LIBAB_SUCCESS; libab_result result = LIBAB_SUCCESS;
return result; return result;