Only dedent lines with indentation

src/indent.rs

@@ -64,7 +64,11 @@ fn get_diff(line: &str, pattern: &Pattern) -> i8 {
 }
 
 /// Calculate dedentation for the current line
-fn get_back(line: &str, pattern: &Pattern) -> i8 {
+fn get_back(line: &str, pattern: &Pattern, state: &State) -> i8 {
+    // Only need to dedent if indentation is present
+    if state.indent.actual == 0 {
+        return 0;
+    }
     let mut back: i8 = 0;
 
     if pattern.contains_env_end && line.contains(ENV_END) {
@@ -80,10 +84,8 @@ fn get_back(line: &str, pattern: &Pattern) -> i8 {
         }
         // other environments get single indents
         back = 1;
-    };
-
-    // deindent items to make the rest of item environment appear indented
-    if pattern.contains_item && line.contains(ITEM) {
+    } else if pattern.contains_item && line.contains(ITEM) {
+        // deindent items to make the rest of item environment appear indented
         back += 1;
     };
 
@@ -99,9 +101,9 @@ fn get_back(line: &str, pattern: &Pattern) -> i8 {
 }
 
 /// Calculate indentation properties of the current line
-fn get_indent(line: &str, prev_indent: &Indent, pattern: &Pattern) -> Indent {
+fn get_indent(line: &str, prev_indent: &Indent, pattern: &Pattern, state: &State) -> Indent {
     let diff = get_diff(line, pattern);
-    let back = get_back(line, pattern);
+    let back = get_back(line, pattern, state);
     let actual = prev_indent.actual + diff;
     let visual = prev_indent.actual - back;
     Indent { actual, visual }
@@ -123,7 +125,7 @@ pub fn calculate_indent(
     // (if there is one) to ignore diffs from characters in there.
     let comment_index = find_comment_index(line);
     let line_strip = remove_comment(line, comment_index);
-    let mut indent = get_indent(line_strip, &state.indent, pattern);
+    let mut indent = get_indent(line_strip, &state.indent, pattern, state);
 
     // Record the indent to the logs.
     if args.trace {