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authorbnewbold <bnewbold@robocracy.org>2017-01-14 19:41:51 -0800
committerbnewbold <bnewbold@robocracy.org>2017-01-14 19:52:56 -0800
commit11569fdec123e9c7aeaf38d8a122842c4c758fdf (patch)
tree2940f78906772581812211e00f93228a63ac30de /modelica-parser-lalrpop
parentf8b7d9d7e936bb53db3f978b54592b7af791d1ec (diff)
downloadmodelthing-11569fdec123e9c7aeaf38d8a122842c4c758fdf.tar.gz
modelthing-11569fdec123e9c7aeaf38d8a122842c4c758fdf.zip
parse out exponentiation
Diffstat (limited to 'modelica-parser-lalrpop')
-rw-r--r--modelica-parser-lalrpop/helper_macros.txt24
-rw-r--r--modelica-parser-lalrpop/src/ast.rs3
-rw-r--r--modelica-parser-lalrpop/src/parser.lalrpop3
3 files changed, 29 insertions, 1 deletions
diff --git a/modelica-parser-lalrpop/helper_macros.txt b/modelica-parser-lalrpop/helper_macros.txt
new file mode 100644
index 0000000..957586e
--- /dev/null
+++ b/modelica-parser-lalrpop/helper_macros.txt
@@ -0,0 +1,24 @@
+
+// === Helper Macros ==
+
+Comma<T>: Vec<T> = {
+ <v:(<T> ",")*> <e:T?> => match e {
+ None=> v,
+ Some(e) => {
+ let mut v = v;
+ v.push(e);
+ v
+ }
+ }
+};
+
+Dotted<T>: Vec<T> = {
+ <v:(<T> ".")*> <e:T?> => match e {
+ None=> v,
+ Some(e) => {
+ let mut v = v;
+ v.push(e);
+ v
+ }
+ }
+};
diff --git a/modelica-parser-lalrpop/src/ast.rs b/modelica-parser-lalrpop/src/ast.rs
index f1e7d93..317944b 100644
--- a/modelica-parser-lalrpop/src/ast.rs
+++ b/modelica-parser-lalrpop/src/ast.rs
@@ -103,6 +103,7 @@ pub enum MathUnaryFunc {
pub enum BinOperator {
Multiply,
Divide,
+ Exponentiate,
Add,
Subtract,
}
@@ -313,6 +314,8 @@ impl Debug for BinOperator {
match *self {
Multiply => write!(fmt, "*"),
Divide => write!(fmt, "/"),
+ // TODO: this doesn't really work here
+ Exponentiate => write!(fmt, "^"),
Add => write!(fmt, "+"),
Subtract => write!(fmt, "-"),
}
diff --git a/modelica-parser-lalrpop/src/parser.lalrpop b/modelica-parser-lalrpop/src/parser.lalrpop
index cb59a82..2d2469c 100644
--- a/modelica-parser-lalrpop/src/parser.lalrpop
+++ b/modelica-parser-lalrpop/src/parser.lalrpop
@@ -161,7 +161,8 @@ factor: Expr = {
<lhs:factor> "/" <rhs:term> =>
Expr::BinExpr(BinOperator::Divide, Box::new(lhs), Box::new(rhs)),
<lhs:factor> "^" <rhs:term> =>
- Expr::BinExpr(BinOperator::Divide, Box::new(lhs), Box::new(rhs)),
+ Expr::BinExpr(BinOperator::Exponentiate, Box::new(lhs), Box::new(rhs)),
+ // TODO: this could be a "negate" unary op?
"-" <t:term> =>
Expr::BinExpr(BinOperator::Multiply, Box::new(Expr::Integer(-1)), Box::new(t)),
term,