Allows backslash in project/context names

todotxt/todo.txt#13

src/parser.rs

@@ -83,7 +83,7 @@ fn get_tags(regex: &::regex::Regex, subject: &str) -> Vec<String> {
 
 macro_rules! regex_tags_shared {
     () => {
-        "(?P<space>^|[\\s]){}(?P<tag>[\\w-]+)"
+        "(?P<space>^|[\\s]){}(?P<tag>[\\w\\\\-]+)"
     };
 }
 

tests/parser.rs

@@ -105,11 +105,11 @@ fn deplucate_contexts() {
 
 #[test]
 fn projects() {
-    let line = "Email SoAndSo at soandso@example.com +project1 @context2".to_owned();
+    let line = "Email SoAndSo at soandso@example.com +project1 +project1\\subject1 @context2".to_owned();
     let task = ::todo_txt::Task {
-        subject: "Email SoAndSo at soandso@example.com +project1 @context2".to_owned(),
+        subject: "Email SoAndSo at soandso@example.com +project1 +project1\\subject1 @context2".to_owned(),
         contexts: vec!["context2".to_owned()],
-        projects: vec!["project1".to_owned()],
+        projects: vec!["project1".to_owned(), "project1\\subject1".to_owned()],
         ..Default::default()
     };