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-rw-r--r--src/ser.rs52
1 files changed, 23 insertions, 29 deletions
diff --git a/src/ser.rs b/src/ser.rs
index 3c9b354..febe429 100644
--- a/src/ser.rs
+++ b/src/ser.rs
@@ -450,14 +450,18 @@ impl<'a> Serializer<'a> {
if ok {
drop(write!(self.dst, "{}", key));
} else {
- self.emit_str(key)?;
+ self.emit_str(key, true)?;
}
Ok(())
}
- fn emit_str(&mut self, value: &str) -> Result<(), Error> {
- let do_pretty = if self.settings.pretty_string {
- value.contains('\n')
+ fn emit_str(&mut self, value: &str, is_key: bool) -> Result<(), Error> {
+ let do_pretty = if !is_key && self.settings.pretty_string {
+ // do pretty only if the block contains at least one newline
+ value.contains('\n')
+ // but not if it contains any of these, as they are not
+ // representable
+ && !value.contains("'''")
} else {
false
};
@@ -466,31 +470,21 @@ impl<'a> Serializer<'a> {
} 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}' => {
- 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}' => {
- if do_pretty {
- drop(write!(self.dst, "\""))
- } else {
- drop(write!(self.dst, "\\\""))
- }
- },
- '\u{5c}' => drop(write!(self.dst, "\\\\")),
- c if c < '\u{1f}' => {
- drop(write!(self.dst, "\\u{:04X}", ch as u32))
+ if do_pretty {
+ drop(write!(self.dst, "{}", value));
+ } else {
+ 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{c}' => drop(write!(self.dst, "\\f")),
+ '\u{d}' => drop(write!(self.dst, "\\r")),
+ '\u{22}' => drop(write!(self.dst, "\\\"")),
+ '\u{5c}' => drop(write!(self.dst, "\\\\")),
+ c if c < '\u{1f}' => drop(write!(self.dst, "\\u{:04X}", ch as u32)),
+ ch => drop(write!(self.dst, "{}", ch)),
}
- ch => drop(write!(self.dst, "{}", ch)),
}
}
if do_pretty {
@@ -651,7 +645,7 @@ impl<'a, 'b> ser::Serializer for &'b mut Serializer<'a> {
fn serialize_str(mut self, value: &str) -> Result<(), Self::Error> {
self.emit_key("string")?;
- self.emit_str(value)?;
+ self.emit_str(value, false)?;
if let State::Table { .. } = self.state {
self.dst.push_str("\n");
}