void write_value(scanner& sc, writer& wr, const value& val) {
switch (val.type()) {
case value_type::number_type: {
read_value(sc);
wr.append(stringize_number(val.number_value()));
break;
}
case value_type::string_type: {
read_value(sc);
wr.append("\"");
wr.append(escape_string(val.string_value()));
wr.append("\"");
break;
}
case value_type::bool_type: {
read_value(sc);
wr.append(val.bool_value() ? "true" : "false");
break;
}
case value_type::group_type: {
if (sc.peek_token().is_char('{')) {
write_group(sc, wr, true, val.group_value());
} else {
read_value(sc);
scanner dummy_scanner = make_scanner("{}");
write_group(dummy_scanner, wr, true, val.group_value());
}
break;
}
case value_type::vector_type: {
if (sc.peek_token().is_char('[')) {
write_vector(sc, wr, val.vector_value());
} else {
read_value(sc);
scanner dummy_scanner = make_scanner("[]");
write_vector(dummy_scanner, wr, val.vector_value());
}
break;
}
default: {
break;
}
}
}
int value_length(const value& val, int wrap_length) {
switch (val.type()) {
case value_type::number_type: {
return stringize_number(val.number_value()).size();
}
case value_type::string_type: {
return 2 + escape_string(val.string_value()).size();
}
case value_type::bool_type: {
return val.bool_value() ? 4 : 5;
}
case value_type::group_type: {
return group_length(val.group_value());
}
case value_type::vector_type: {
return vector_length(val.vector_value());
}
default: {
return 0;
}
}
}