Show italic file types correctly.

- Some file types have italic lscolors style, e.g. pem files.
- Using TermStr.from_term to parse lscodes now it exists.

eris/eris/tools.py

@@ -739,24 +739,10 @@ def run_tool_no_error(path, tool):
             pygments.styles.get_style_by_name(os.environ["PYGMENT_STYLE"]))
 
 
-def _convert_lscolor_code_to_charstyle(lscolor_code):
-    parts = lscolor_code.split(";")
-    if len(parts) == 1:
-        is_bold = parts[0] == "1"
-        fg_color = None
-    elif len(parts) == 2:
-        is_bold = False
-        fg_color = int(parts[1])
-    else:
-        is_bold = len(parts) == 4 and parts[3] == "1"
-        fg_color = int(parts[2])
-    return termstr.CharStyle(fg_color=fg_color, is_bold=is_bold)
-
-
 def _charstyle_of_path(path):
     color_code = lscolors.color_code_for_path(path, _LS_COLOR_CODES)
-    return (termstr.CharStyle() if color_code is None else
+    term_text = termstr.ESC + "[" + color_code + "m-"
-            _convert_lscolor_code_to_charstyle(color_code))
+    return termstr.TermStr.from_term(term_text).style[0]
 
 
 @functools.lru_cache(maxsize=100)