Improve error and warning regex

Author: m-kru

README.md

@@ -36,6 +36,7 @@ Please check the official [HBS user manual](https://github.com/m-kru/hbs/blob/ma
 
 ### Changed
 - Improved error messages.
+- Improved regex for errors and warnings.
 
 ### Fixed
 - Generics handling for xsim.

hbs

@@ -18,8 +18,8 @@ import multiprocessing
 this_script_dir = os.path.dirname(os.path.abspath(__file__))
 workers = multiprocessing.cpu_count()
 
-error_regexp = re.compile(r"\berror\b")
-warning_regexp = re.compile(r"\bwarning\b")
+error_regexp = re.compile(r"(?<!\=)\berror\b")
+warning_regexp = re.compile(r"(?<!\=)\bwarning\b")
 
 help_help = """Usage: