Allow escaping characters

This patch adds the '\' character as a new rune, Rune::Special. This is
for escaping special characters. Also works in strings (", ').

Signed-off-by: Rory Dudley <rory@netc.lu>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/poem/read/parse.rs b/src/poem/read/parse.rs
index fc1979f..0b6c5a3 100644
--- a/src/poem/read/parse.rs
+++ b/src/poem/read/parse.rs
@@ -74,6 +74,14 @@ macro_rules! string {
                     $word.push('\x0e');
                     $i += 1;
                 }
+                Some(c) if c == '\\' => {
+                    let c = match $chars.next() {
+                        Some(c) => c,
+                        None => continue,
+                    };
+                    $word.push(c);
+                    $i += 1;
+                }
                 Some(c) => {
                     $word.push(c);
                     $i += 1;
@@ -108,6 +116,14 @@ macro_rules! poem {
             match $chars.next() {
                 None => return Err(Mishap::PartialMishap($j, $i, $c)),
                 Some(c) if c == token => break,
+                Some(c) if c == '\\' => {
+                    let c = match $chars.next() {
+                        Some(c) => c,
+                        None => continue,
+                    };
+                    $word.push(c);
+                    $i += 1;
+                }
                 Some(c) => {
                     poetry.push(c);
                     $i += 1;