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use super::Value;
use crate::output::Formatted;
use crate::value::{ListSeparator, Operator, Quotes};
use std::fmt::{self, Display, Write};
impl<'a> Display for Formatted<'a, Value> {
fn fmt(&self, out: &mut fmt::Formatter) -> fmt::Result {
match *self.value {
Value::Bang(ref s) => write!(out, "!{}", s),
Value::Literal(ref s, ref q) => match *q {
Quotes::None => write!(out, "{}", s),
Quotes::Double => {
if s.contains('"') && !s.contains('\'') {
write_sq(out, s)
} else {
write_dq(out, s)
}
}
Quotes::Single => {
if !s.contains('"') || s.contains('\'') {
write_dq(out, s)
} else {
write_sq(out, s)
}
}
},
Value::Function(ref n, ref _f) => {
let name = n
.chars()
.flat_map(|c| match c {
'"' => vec!['\\', '"'],
c => vec![c],
})
.collect::<String>();
write!(out, "get-function(\"{}\")", name)
}
Value::Numeric(ref num, _) => num.format(self.format).fmt(out),
Value::Color(ref rgba, ref name) => {
if let Some(ref name) = *name {
name.fmt(out)
} else {
rgba.format(self.format).fmt(out)
}
}
Value::List(ref v, sep, brackets) => {
let introspect = self.format.is_introspection();
if introspect && v.is_empty() && !brackets {
return out.write_str("()");
}
let t = v
.iter()
.filter(|v| !v.is_null() || introspect)
.map(|v| {
let needs_paren = match *v {
Value::List(ref v, inner, false) => {
((brackets || introspect)
&& (sep == ListSeparator::Space
|| inner == ListSeparator::Comma))
&& !(introspect && v.len() < 2)
}
_ => false,
};
if needs_paren {
format!("({})", v.format(self.format))
} else {
format!("{}", v.format(self.format))
}
})
.collect::<Vec<_>>();
let t = if self.format.is_introspection()
&& t.len() == 1
&& sep == ListSeparator::Comma
{
if self.format.is_introspection() && !brackets {
format!("({},)", t[0])
} else {
format!("{},", t[0])
}
} else {
t.join(match sep {
ListSeparator::Comma => {
if self.format.is_compressed() {
","
} else {
", "
}
}
ListSeparator::Space => " ",
})
};
if brackets {
out.write_str("[")?;
}
write!(out, "{}", t)?;
if brackets {
out.write_str("]")?;
}
Ok(())
}
Value::Call(ref name, ref arg) => {
write!(out, "{}({})", name, arg)
}
Value::BinOp(ref a, _, Operator::Plus, _, ref b) => {
a.format(self.format).fmt(out)?;
b.format(self.format).fmt(out)
}
Value::BinOp(ref a, ref s1, ref op, ref s2, ref b) => {
a.format(self.format).fmt(out)?;
if *s1 {
out.write_char(' ')?;
}
op.fmt(out)?;
if *s2 {
out.write_char(' ')?;
}
b.format(self.format).fmt(out)
}
Value::UnaryOp(ref op, ref v) => {
op.fmt(out)?;
if *op == Operator::Not {
out.write_char(' ')?;
}
v.format(self.format).fmt(out)
}
Value::True => write!(out, "true"),
Value::False => write!(out, "false"),
Value::Null => {
if self.format.is_introspection() {
out.write_str("null")
} else {
Ok(())
}
}
Value::Map(ref map) => {
out.write_char('(')?;
for (i, (k, v)) in map.iter().enumerate() {
if i > 0 {
out.write_str(", ")?;
}
if matches!(k, Value::List(_, ListSeparator::Comma, _))
&& self.format.is_introspection()
{
write!(out, "({})", k.format(self.format))?;
} else {
write!(out, "{}", k.format(self.format))?;
}
out.write_str(": ")?;
if matches!(v, Value::List(_, ListSeparator::Comma, _))
&& self.format.is_introspection()
{
write!(out, "({})", v.format(self.format))?;
} else {
write!(out, "{}", v.format(self.format))?;
}
}
out.write_char(')')
}
Value::UnicodeRange(ref s) => write!(out, "{}", s),
Value::Paren(ref v) => {
out.write_char('(')?;
v.format(self.format).fmt(out)?;
out.write_char(')')
}
}
}
}
fn write_dq(out: &mut fmt::Formatter, s: &str) -> fmt::Result {
out.write_char('"')?;
for c in s.chars() {
if c == '"' {
out.write_char('\\')?;
}
out.write_char(c)?;
}
out.write_char('"')
}
fn write_sq(out: &mut fmt::Formatter, s: &str) -> fmt::Result {
out.write_char('\'')?;
for c in s.chars() {
if c == '\'' {
out.write_char('\\')?;
}
out.write_char(c)?;
}
out.write_char('\'')
}