diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/ser.rs | 41 |
1 files changed, 38 insertions, 3 deletions
@@ -214,6 +214,22 @@ impl<'a> Serializer<'a> { } } + /// instantiate a "pretty" formatter + /// + /// TODO: add better docs + pub fn pretty(dst: &'a mut String) -> Serializer<'a> { + Serializer { + dst: dst, + state: State::End, + settings: Settings { + array: Some(ArraySettings { + indent: 4, + }), + pretty_string: true, + }, + } + } + fn display<T: fmt::Display>(&mut self, t: T, type_: &'static str) -> Result<(), Error> { @@ -300,12 +316,27 @@ impl<'a> Serializer<'a> { } fn emit_str(&mut self, value: &str) -> Result<(), Error> { - drop(write!(self.dst, "\"")); + let do_pretty = if self.settings.pretty_string { + value.contains('\n') + } else { + false + }; + if do_pretty { + drop(write!(self.dst, "'''\n")); + } else { + drop(write!(self.dst, "\"")); + } for ch in value.chars() { match ch { '\u{8}' => drop(write!(self.dst, "\\b")), '\u{9}' => drop(write!(self.dst, "\\t")), - '\u{a}' => drop(write!(self.dst, "\\n")), + '\u{a}' => { + if do_pretty { + drop(write!(self.dst, "\n")); + } else { + drop(write!(self.dst, "\\n")); + } + }, '\u{c}' => drop(write!(self.dst, "\\f")), '\u{d}' => drop(write!(self.dst, "\\r")), '\u{22}' => drop(write!(self.dst, "\\\"")), @@ -316,7 +347,11 @@ impl<'a> Serializer<'a> { ch => drop(write!(self.dst, "{}", ch)), } } - drop(write!(self.dst, "\"")); + if do_pretty { + drop(write!(self.dst, "'''")); + } else { + drop(write!(self.dst, "\"")); + } Ok(()) } |