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use {
super::*,
crate::errors::ConfError,
std::fmt,
};
/// A verb execution definition based on an internal
#[derive(Debug, Clone)]
pub struct InternalExecution {
/// the internal to use
pub internal: Internal,
/// whether to open the resulting state in a new panel
/// instead of the current ones
pub bang: bool,
/// arguments
///
/// For example it's `"~"` when a verb execution is `":!focus ~"`
/// and it's execution: `"OO {v} {file}\n"` when the verb execution is
/// `":write_output OO {v} {file}\n"`
pub arg: Option<String>,
}
impl InternalExecution {
pub fn from_internal(internal: Internal) -> Self {
Self {
internal,
bang: false,
arg: None,
}
}
pub fn from_internal_bang(
internal: Internal,
bang: bool,
) -> Self {
Self {
internal,
bang,
arg: None,
}
}
pub fn try_from(invocation_str: &str) -> Result<Self, ConfError> {
let invocation = VerbInvocation::from(invocation_str);
let internal = Internal::try_from(&invocation.name)?;
Ok(Self {
internal,
bang: invocation.bang,
arg: invocation.args,
})
}
pub fn needs_selection(&self) -> bool {
self.internal.needs_selection(&self.arg)
}
fn has_merging_arg(&self) -> bool {
let Some(args) = &self.arg else {
return false;
};
for capture in ARG_DEF_GROUP.captures_iter(args) {
let arg_def = VerbArgDef::from_capture(&capture);
for flag in &arg_def.flags {
if flag.is_merging() {
return true;
}
}
}
false
}
/// Tell whether, in case of a multiple selection, the command should be executed once per
/// selection or once for all selections together (meaning the selections will be merged).
pub fn coarity(&self) -> CommandCoarity {
if self.has_merging_arg() {
CommandCoarity::Merged
} else {
CommandCoarity::PerSelection
}
}
}
impl fmt::Display for InternalExecution {
fn fmt(
&self,
f: &mut fmt::Formatter<'_>,
) -> fmt::Result {
write!(f, ":{}", self.internal.name())?;
if self.bang {
write!(f, "!")?;
}
if let Some(arg) = &self.arg {
write!(f, " {arg}")?;
}
Ok(())
}
}