fix a few regexps that are better as raw strings

Author: dhalbert

tools/ci_fetch_deps.py

@@ -11,7 +11,7 @@
 
 def _git_version():
     version_str = subprocess.check_output(["git", "--version"], encoding="ascii", errors="replace")
-    version_str = re.search("([0-9]\.*)*[0-9]", version_str).group(0)
+    version_str = re.search(r"([0-9]\.*)*[0-9]", version_str).group(0)
     return tuple(int(part) for part in version_str.split("."))
 
 

tools/fwsizes.py

@@ -7,7 +7,7 @@
 
 for fn in os.listdir():
     if os.path.isfile(fn) and ("build-arm " in fn or "build-riscv " in fn):
-        board = re.split("[()]", fn)[1]
+        board = re.split(r"[()]", fn)[1]
         if board in (
             "spresense",
             "teensy40",

tools/gen_ld_files.py

@@ -28,7 +28,7 @@
 defines = {}
 
 #
-REMOVE_UL_RE = re.compile("([0-9]+)UL")
+REMOVE_UL_RE = re.compile(r"([0-9]+)UL")
 
 
 def remove_UL(s):

tools/hci_trace_to_pcap.py

@@ -66,7 +66,7 @@
 with open(sys.argv[1], "r") as f:
     for line in f:
         line = line.strip()
-        m = re.match("([<>]) \\[ *([0-9]+)\\] ([A-Fa-f0-9:]+)", line)
+        m = re.match(r"([<>]) \[ *([0-9]+)\] ([A-Fa-f0-9:]+)", line)
         if not m:
             continue