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// See LICENSE file for copyright and license details.
//! Parse the socket info.
//!
//! For now this module will have 2 methods. One for inmediate execution and
//! other for add a bindind.
use x11::xlib;
use x11::keysym;
use command::*;
use ::socket::ParsedCmd;
use ::socket::FnType;
macro_rules! simple_try {
($expr:expr) => (match $expr {
Ok(val) => val,
Err(err) => {
return Err(err)
}
})
}
fn modifier_from<'a>(s: &'a str) -> Result<u32, &'static str> {
match s {
"Mod1" => Ok(xlib::Mod1Mask),
"Mod2" => Ok(xlib::Mod2Mask),
"Mod3" => Ok(xlib::Mod3Mask),
"Mod4" => Ok(xlib::Mod4Mask),
"Control" => Ok(xlib::ControlMask),
"Shift" => Ok(xlib::ShiftMask),
_ => Err("unknown modifier"),
}
}
fn modifiers<'a>(s: &'a str) -> Result<Vec<u32>, &'static str> {
let mut result = vec![];
for smod in s.split("-") {
let modifier = simple_try!(modifier_from(smod));
result.push(modifier);
}
Ok(result)
}
fn key<'a>(s: &'a str) -> Result<u32, &'static str> {
match s {
"a" => Ok(keysym::XK_a),
"b" => Ok(keysym::XK_b),
"c" => Ok(keysym::XK_c),
"d" => Ok(keysym::XK_d),
"e" => Ok(keysym::XK_e),
"f" => Ok(keysym::XK_f),
"g" => Ok(keysym::XK_g),
"h" => Ok(keysym::XK_h),
"i" => Ok(keysym::XK_i),
"j" => Ok(keysym::XK_j),
"k" => Ok(keysym::XK_k),
"l" => Ok(keysym::XK_l),
"m" => Ok(keysym::XK_m),
"n" => Ok(keysym::XK_n),
"o" => Ok(keysym::XK_o),
"p" => Ok(keysym::XK_p),
"q" => Ok(keysym::XK_q),
"r" => Ok(keysym::XK_r),
"s" => Ok(keysym::XK_s),
"t" => Ok(keysym::XK_t),
"u" => Ok(keysym::XK_u),
"v" => Ok(keysym::XK_v),
"w" => Ok(keysym::XK_w),
"x" => Ok(keysym::XK_x),
"y" => Ok(keysym::XK_y),
"z" => Ok(keysym::XK_z),
"A" => Ok(keysym::XK_A),
"B" => Ok(keysym::XK_B),
"C" => Ok(keysym::XK_C),
"D" => Ok(keysym::XK_D),
"E" => Ok(keysym::XK_E),
"F" => Ok(keysym::XK_F),
"G" => Ok(keysym::XK_G),
"H" => Ok(keysym::XK_H),
"I" => Ok(keysym::XK_I),
"J" => Ok(keysym::XK_J),
"K" => Ok(keysym::XK_K),
"L" => Ok(keysym::XK_L),
"M" => Ok(keysym::XK_M),
"N" => Ok(keysym::XK_N),
"O" => Ok(keysym::XK_O),
"P" => Ok(keysym::XK_P),
"Q" => Ok(keysym::XK_Q),
"R" => Ok(keysym::XK_R),
"S" => Ok(keysym::XK_S),
"T" => Ok(keysym::XK_T),
"U" => Ok(keysym::XK_U),
"V" => Ok(keysym::XK_V),
"W" => Ok(keysym::XK_W),
"X" => Ok(keysym::XK_X),
"Y" => Ok(keysym::XK_Y),
"Z" => Ok(keysym::XK_Z),
"1" => Ok(keysym::XK_1),
"2" => Ok(keysym::XK_2),
"Tab" => Ok(keysym::XK_Tab),
"Return" => Ok(keysym::XK_Return),
_ => Err("unknown key"),
}
}
fn func<'a>(s: &'a str) -> Result<ExecFn, &'static str> {
match s {
"exec" => Ok(exec),
"move-win" => Ok(move_win),
"move-win-to" => Ok(move_win_to),
"move-win-sticky" => Ok(move_win_sticky),
"resize-win" => Ok(resize_win),
"resize-win-sticky" => Ok(resize_win_sticky),
"focus-next" => Ok(focus_next),
"close-win" => Ok(close_win),
"fullscreen" => Ok(fullscreen),
"change-desktop" => Ok(change_desktop),
"quit" => Ok(quit_dotwm),
_ => Err("unknown function"),
}
}
pub fn parse<'a>(input: &'a str) -> Result<ParsedCmd<'a>, &'static str> {
let args: Vec<&'a str> = input.split_whitespace().collect();
match args.first() {
Some(cmd) => {
match cmd {
&"bind" => {
if args.len() > 2 {
let modifiers = simple_try!(modifiers(args[1]));
let key = simple_try!(key(args[2]));
let func = simple_try!(func(args[3]));
let arguments: &[&'a str]= &args[4..];
Ok(ParsedCmd {
f: FnType::Bind,
modifiers: modifiers,
key: key,
args: arguments.to_vec(),
func: func,
})
} else {
Err("missing arguments")
}
},
&"exec" => {
Ok(ParsedCmd {
f: FnType::Exec,
modifiers: vec![],
key: 0,
args: vec![],
func: exec
})
},
_ => {
Err("unknown command")
},
}
},
None => Err("no input"),
}
}
#[test]
fn parse_unknown() {
let res = parse("unknown");
if let Err(e) = res {
assert_eq!(e, "unknown command");
} else {
assert!(false);
}
}
#[test]
fn parse_bind_modifier() {
let res = parse("bind modifier1 k exec ");
if let Err(e) = res {
assert_eq!(e, "unknown modifier");
} else {
assert!(false);
}
let res2 = parse("bind Mod4 k exec ");
if let Ok(modifier) = res2 {
assert_eq!(modifier.modifiers[0], xlib::Mod4Mask);
} else {
assert!(false);
}
}
#[test]
fn parse_bind_key() {
let res = parse("bind Mod4 ' exec ");
if let Err(e) = res {
assert_eq!(e, "unknown key");
} else {
assert!(false);
}
let res2 = parse("bind Mod4 k exec ");
if let Ok(modifier) = res2 {
assert_eq!(modifier.key, keysym::XK_k);
} else {
assert!(false);
}
}
#[test]
fn parse_exec() {
let res = parse("exec Mod4 ' exec ");
if let Ok(pcmd) = res {
assert_eq!(pcmd.f, FnType::Exec);
} else {
assert!(false);
}
}
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