Bug 1875052 - Change various RegEx patterns to raw strings to remove syntax warnings on Python 3.12 r=firefox-build-system-reviewers,glandium

Differential Revision: https://phabricator.services.mozilla.com/D199946

build/midl.py

@@ -67,7 +67,7 @@ def preprocess(base, input, flags):
     import re
     from collections import deque
 
-    IMPORT_RE = re.compile('import\s*"([^"]+)";')
+    IMPORT_RE = re.compile(r'import\s*"([^"]+)";')
 
     parser = argparse.ArgumentParser()
     parser.add_argument("-I", action="append")

config/check_macroassembler_style.py

@@ -34,10 +34,10 @@ all_shared_architecture_names = set(
     ["x86_shared", "arm", "arm64", "loong64", "riscv64", "wasm32"]
 )
 
-reBeforeArg = "(?<=[(,\s])"
-reArgType = "(?P<type>[\w\s:*&<>]+)"
-reArgName = "(?P<name>\s\w+)"
-reArgDefault = "(?P<default>(?:\s=(?:(?:\s[\w:]+\(\))|[^,)]+))?)"
+reBeforeArg = r"(?<=[(,\s])"
+reArgType = r"(?P<type>[\w\s:*&<>]+)"
+reArgName = r"(?P<name>\s\w+)"
+reArgDefault = r"(?P<default>(?:\s=(?:(?:\s[\w:]+\(\))|[^,)]+))?)"
 reAfterArg = "(?=[,)])"
 reMatchArg = re.compile(reBeforeArg + reArgType + reArgName + reArgDefault + reAfterArg)
 
@@ -52,7 +52,7 @@ def get_normalized_signatures(signature, fileAnnot=None):
     # Remove new-line induced spaces after opening braces.
     signature = re.sub(r"\(\s+", "(", signature).strip()
     # Match arguments, and keep only the type.
-    signature = reMatchArg.sub("\g<type>", signature)
+    signature = reMatchArg.sub(r"\g<type>", signature)
     # Remove class name
     signature = signature.replace("MacroAssembler::", "")
 
@@ -63,7 +63,7 @@ def get_normalized_signatures(signature, fileAnnot=None):
 
     if "DEFINED_ON(" in signature:
         archs = re.sub(
-            r".*DEFINED_ON\((?P<archs>[^()]*)\).*", "\g<archs>", signature
+            r".*DEFINED_ON\((?P<archs>[^()]*)\).*", r"\g<archs>", signature
         ).split(",")
         archs = [a.strip() for a in archs]
         signature = re.sub(r"\s+DEFINED_ON\([^()]*\)", "", signature)

js/src/builtin/embedjs.py

@@ -156,7 +156,7 @@ def preprocess(cxx, preprocessorOption, source, args=[]):
 def messages(jsmsg):
     defines = []
     for line in open(jsmsg):
-        match = re.match("MSG_DEF\((JSMSG_(\w+))", line)
+        match = re.match(r"MSG_DEF\((JSMSG_(\w+))", line)
         if match:
             defines.append("#define %s %i" % (match.group(1), len(defines)))
             continue

js/src/vm/jsopcode.py

@@ -16,7 +16,7 @@ def codify(text):
     return text
 
 
-space_star_space_pat = re.compile("^\s*\* ?", re.M)
+space_star_space_pat = re.compile(r"^\s*\* ?", re.M)
 
 
 def get_comment_body(comment):
@@ -59,7 +59,7 @@ def parse_index(comment):
     index = []
     current_types = None
     category_name = ""
-    category_pat = re.compile("\[([^\]]+)\]")
+    category_pat = re.compile(r"\[([^\]]+)\]")
     for line in get_comment_body(comment):
         m = category_pat.search(line)
         if m:
@@ -166,7 +166,7 @@ def add_to_index(index, opcode):
     opcodes.append(opcode)
 
 
-tag_pat = re.compile("^\s*[A-Za-z]+:\s*|\s*$")
+tag_pat = re.compile(r"^\s*[A-Za-z]+:\s*|\s*$")
 
 
 def get_tag_value(line):

python/mozbuild/mozbuild/action/process_define_files.py

@@ -39,7 +39,7 @@ def process_define_file(output, input):
 
     with open(path, "r") as input:
         r = re.compile(
-            "^\s*#\s*(?P<cmd>[a-z]+)(?:\s+(?P<name>\S+)(?:\s+(?P<value>\S+))?)?", re.U
+            r"^\s*#\s*(?P<cmd>[a-z]+)(?:\s+(?P<name>\S+)(?:\s+(?P<value>\S+))?)?", re.U
         )
         for l in input:
             m = r.match(l)

python/mozbuild/mozbuild/configure/__init__.py

@@ -932,7 +932,7 @@ class ConfigureSandbox(dict):
     def wraps(self, func):
         return wraps(func)
 
-    RE_MODULE = re.compile("^[a-zA-Z0-9_.]+$")
+    RE_MODULE = re.compile(r"^[a-zA-Z0-9_.]+$")
 
     def imports_impl(self, _import, _from=None, _as=None):
         """Implementation of @imports.

python/mozversioncontrol/mozversioncontrol/__init__.py

@@ -125,7 +125,7 @@ class Repository(object):
         if self._version:
             return self._version
         info = self._run("--version").strip()
-        match = re.search("version ([^+)]+)", info)
+        match = re.search(r"version ([^+)]+)", info)
         if not match:
             raise Exception("Unable to identify tool version.")
 

testing/mozbase/manifestparser/manifestparser/expression.py

@@ -182,7 +182,7 @@ class ParseError(Exception):
 
 
 class ExpressionParser(object):
-    """
+    r"""
     A parser for a simple expression language.
 
     The expression language can be described as follows::

toolkit/library/build/dependentlibs.py

@@ -28,7 +28,7 @@ def dependentlibs_win32_objdump(lib):
     )
     deps = []
     for line in proc.stdout:
-        match = re.match("\s+DLL Name: (\S+)", line)
+        match = re.match(r"\s+DLL Name: (\S+)", line)
         if match:
             # The DLL Name found might be mixed-case or upper-case. When cross-compiling,
             # the actual DLLs in dist/bin are all lowercase, whether they are produced
@@ -61,7 +61,7 @@ def dependentlibs_readelf(lib):
             # 0x00000001 (NEEDED)             Shared library: [libname]
             # or with BSD readelf:
             # 0x00000001 NEEDED               Shared library: [libname]
-            match = re.search("\[(.*)\]", tmp[3])
+            match = re.search(r"\[(.*)\]", tmp[3])
             if match:
                 deps.append(match.group(1))
     proc.wait()