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Only output colors if colors are supported (removes burden from caller)

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This commit is contained in:
Corey Richardson 2013-05-30 13:21:41 -04:00
parent 1f27c6306d
commit 100ee84097
1 changed files with 11 additions and 5 deletions
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16
src/libextra/term.rs
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@ -43,8 +43,6 @@ pub static color_bright_magenta: u8 = 13u8;
pub static color_bright_cyan: u8 = 14u8;
pub static color_bright_white: u8 = 15u8;
pub fn esc(writer: @io::Writer) { writer.write([0x1bu8, '[' as u8]); }
pub struct Terminal {
color_supported: bool,
priv out: @io::Writer,
@ -75,12 +73,20 @@ pub impl Terminal {
return Ok(Terminal {out: out, ti: inf, color_supported: cs});
}
fn fg(&self, color: u8) {
self.out.write(expand(*self.ti.strings.find_equiv(&("setaf")).unwrap(), [Number(color as int)], [], []));
if self.color_supported {
self.out.write(expand(*self.ti.strings.find_equiv(&("setaf")).unwrap(),
[Number(color as int)], [], []));
}
}
fn bg(&self, color: u8) {
self.out.write(expand(*self.ti.strings.find_equiv(&("setab")).unwrap(), [Number(color as int)], [], []));
if self.color_supported {
self.out.write(expand(*self.ti.strings.find_equiv(&("setab")).unwrap(),
[Number(color as int)], [], []));
}
}
fn reset(&self) {
self.out.write(expand(*self.ti.strings.find_equiv(&("op")).unwrap(), [], [], []));
if self.color_supported {
self.out.write(expand(*self.ti.strings.find_equiv(&("op")).unwrap(), [], [], []));
}
}
}