grn_rc
grn_ts_expr_parse(grn_ctx *ctx, grn_obj *table, grn_ts_str str,
grn_ts_expr **expr)
{
grn_rc rc;
grn_ts_expr *new_expr;
grn_ts_expr_parser *parser;
if (!ctx) {
return GRN_INVALID_ARGUMENT;
}
if (!table || !grn_ts_obj_is_table(ctx, table) ||
(!str.ptr && str.size) || !expr) {
GRN_TS_ERR_RETURN(GRN_INVALID_ARGUMENT, "invalid argument");
}
rc = grn_ts_expr_parser_open(ctx, table, &parser);
if (rc != GRN_SUCCESS) {
return rc;
}
rc = grn_ts_expr_parser_parse(ctx, parser, str, &new_expr);
grn_ts_expr_parser_close(ctx, parser);
if (rc != GRN_SUCCESS) {
return rc;
}
*expr = new_expr;
return GRN_SUCCESS;
}
/* grn_ts_writer_build() builds output expresions. */
static grn_rc
grn_ts_writer_build(grn_ctx *ctx, grn_ts_writer *writer, grn_obj *table)
{
size_t i, n_names = grn_vector_size(ctx, &writer->name_buf);
if (!n_names) {
return GRN_SUCCESS;
}
writer->names = GRN_MALLOCN(grn_ts_str, n_names);
if (!writer->names) {
GRN_TS_ERR_RETURN(GRN_NO_MEMORY_AVAILABLE,
"GRN_MALLOCN failed: %" GRN_FMT_SIZE " x %" GRN_FMT_SIZE,
sizeof(grn_ts_str), n_names);
}
writer->exprs = GRN_MALLOCN(grn_ts_expr *, n_names);
if (!writer->exprs) {
GRN_TS_ERR_RETURN(GRN_NO_MEMORY_AVAILABLE,
"GRN_MALLOCN failed: %" GRN_FMT_SIZE " x %" GRN_FMT_SIZE,
sizeof(grn_ts_expr *), n_names);
}
for (i = 0; i < n_names; i++) {
grn_rc rc;
grn_ts_expr *new_expr;
const char *name_ptr;
size_t name_size = grn_vector_get_element(ctx, &writer->name_buf, i,
&name_ptr, NULL, NULL);
rc = grn_ts_expr_parser_parse(ctx, writer->parser,
(grn_ts_str){ name_ptr, name_size },
&new_expr);
if (rc != GRN_SUCCESS) {
return rc;
}
writer->names[i].ptr = name_ptr;
writer->names[i].size = name_size;
writer->exprs[i] = new_expr;
writer->n_exprs++;
}
return GRN_SUCCESS;
}
