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add beginning support for ',', ';', '->'

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This commit is contained in:
Mark Thom
2017-12-23 23:23:30 -07:00
parent efa8756177
commit ca16768f7e
8 changed files with 289 additions and 52 deletions
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16
src/prolog/io.rs
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@@ -141,6 +141,16 @@ impl fmt::Display for IndexedChoiceInstruction {
}
}
impl fmt::Display for Terminal {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
&Terminal::Terminal =>
write!(f, "terminal"),
&Terminal::Non =>
write!(f, "non_terminal")
}
}
}
impl fmt::Display for BuiltInInstruction {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
@@ -159,6 +169,8 @@ impl fmt::Display for BuiltInInstruction {
write!(f, "get_ball X1"),
&BuiltInInstruction::GetCurrentBlock =>
write!(f, "get_current_block X1"),
&BuiltInInstruction::GetCutPoint =>
write!(f, "get_cp"),
&BuiltInInstruction::InstallNewBlock =>
write!(f, "install_new_block"),
&BuiltInInstruction::InternalCallN =>
@@ -171,6 +183,10 @@ impl fmt::Display for BuiltInInstruction {
write!(f, "reset_block"),
&BuiltInInstruction::SetBall =>
write!(f, "set_ball"),
&BuiltInInstruction::SetNeckCutPoint(terminal) =>
write!(f, "set_neck_cp {}", terminal),
&BuiltInInstruction::SetNonNeckCutPoint(terminal) =>
write!(f, "set_non_neck_cp {}", terminal),
&BuiltInInstruction::Succeed =>
write!(f, "true"),
&BuiltInInstruction::UnwindStack =>