fix gitignore pattern `\` broken initialization

2 files changed, 11 insertions, 1 deletions

diff --git a/changelog.md b/changelog.md
index cb4e6d0f..0be6a699 100644
--- a/changelog.md
+++ b/changelog.md
@@ -9,6 +9,8 @@
     ---@field ['#'] number
     ```
 * `NEW` add supports of `love2d`
+* `FIX` gitignore pattern `\` broken initialization
+* `FIX` runtime errors
 
 ## 2.3.1
 `2021-7-19`
diff --git a/script/glob/matcher.lua b/script/glob/matcher.lua
index f4c2b12c..0a2a740f 100644
--- a/script/glob/matcher.lua
+++ b/script/glob/matcher.lua
@@ -123,7 +123,12 @@ end
 
 function mt:pattern(state)
     if state.root then
-        return m.C(self:exp(state, 1))
+        local after = self:exp(state, 1)
+        if after then
+            return m.C(after)
+        else
+            return nil
+        end
     else
         return m.C(self:anyPath(nil, state, 1))
     end
@@ -147,5 +152,8 @@ return function (state, options)
         state   = state,
     }, mt)
     self.matcher = self:pattern(state)
+    if not self.matcher then
+        return nil
+    end
     return self
 end