+static void
+format_cc (struct string *out, const char *in, char grouping)
+{
+ while (*in != '\0')
+ {
+ char c = *in++;
+ if (c == grouping || c == '\'')
+ ds_put_byte (out, '\'');
+ else if (c == '"')
+ ds_put_byte (out, '"');
+ ds_put_byte (out, c);
+ }
+}
+
+char *
+fmt_number_style_to_string (const struct fmt_number_style *cc)
+{
+ struct string out = DS_EMPTY_INITIALIZER;
+ format_cc (&out, cc->neg_prefix.s, cc->grouping);
+ ds_put_byte (&out, cc->grouping);
+ format_cc (&out, cc->prefix.s, cc->grouping);
+ ds_put_byte (&out, cc->grouping);
+ format_cc (&out, cc->suffix.s, cc->grouping);
+ ds_put_byte (&out, cc->grouping);
+ format_cc (&out, cc->neg_suffix.s, cc->grouping);
+ return ds_steal_cstr (&out);
+}
+