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From d4e0a07a24c16b38de58c14a38b418c63106ad09 Mon Sep 17 00:00:00 2001
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From: Lukas Slebodnik <lslebodn@fedoraproject.org>
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Date: Sat, 24 Aug 2019 16:46:30 +0200
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Subject: [PATCH] [PATCH] wafsamba: Fix few SyntaxWarnings caused by regular 
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 expressions
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./buildtools/wafsamba/samba_utils.py:258: SyntaxWarning: invalid escape sequence \$
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  lst = re.split('(\$\{\w+\})', string)
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./buildtools/wafsamba/samba_utils.py:261: SyntaxWarning: invalid escape sequence \$
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  if re.match('\$\{\w+\}', v):
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./buildtools/wafsamba/samba_cross.py:80: SyntaxWarning: invalid escape sequence \(
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  m = re.match('\(\s*(-?\d+)\s*,\s*\"(.*)\"\s*\)', ans)
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./buildtools/wafsamba/samba_conftests.py:400: SyntaxWarning: invalid escape sequence \s
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  m = re.search('MAN%sEXT\s+=\s+(\w+)' % section, man)
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./buildtools/wafsamba/samba_abi.py:24: SyntaxWarning: invalid escape sequence \$
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  sig = re.sub('^\$[0-9]+\s=\s\{(.+)\}$', r'\1', sig)
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./buildtools/wafsamba/samba_abi.py:25: SyntaxWarning: invalid escape sequence \$
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  sig = re.sub('^\$[0-9]+\s=\s\{(.+)\}(\s0x[0-9a-f]+\s<\w+>)+$', r'\1', sig)
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./buildtools/wafsamba/samba_abi.py:26: SyntaxWarning: invalid escape sequence \$
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  sig = re.sub('^\$[0-9]+\s=\s(0x[0-9a-f]+)\s?(<\w+>)?$', r'\1', sig)
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./buildtools/wafsamba/samba_abi.py:33: SyntaxWarning: invalid escape sequence \*
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  m = m.replace('*', '\*')
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./buildtools/wafsamba/samba_abi.py:44: SyntaxWarning: invalid escape sequence \s
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  sig = re.sub(',\s\.\.\.', '', sig)
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./buildtools/wafsamba/samba_headers.py:22: SyntaxWarning: invalid escape sequence \s
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  re_header = re.compile('^\s*#\s*include[ \t]*"([^"]+)"', re.I | re.M)
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./buildtools/wafsamba/symbols.py:122: SyntaxWarning: invalid escape sequence \[
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  re_sharedlib = re.compile(b'Shared library: \[(.*)\]')
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./buildtools/wafsamba/symbols.py:124: SyntaxWarning: invalid escape sequence \[
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  re_rpath     = re.compile(b'Library (rpath|runpath): \[(.*)\]')
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./buildtools/wafsamba/pkgconfig.py:12: SyntaxWarning: invalid escape sequence \w
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  a = re.split('(@\w+@)', s)
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./buildtools/wafsamba/pkgconfig.py:17: SyntaxWarning: invalid escape sequence \w
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  if re.match('@\w+@', v):
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./buildtools/wafsamba/configure_file.py:16: SyntaxWarning: invalid escape sequence \w
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  a = re.split('(@\w+@)', s)
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./buildtools/wafsamba/configure_file.py:19: SyntaxWarning: invalid escape sequence \w
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  if re.match('@\w+@', v):
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---
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 buildtools/wafsamba/configure_file.py  |  4 ++--
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 buildtools/wafsamba/pkgconfig.py       |  4 ++--
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 buildtools/wafsamba/samba_abi.py       | 12 ++++++------
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 buildtools/wafsamba/samba_conftests.py |  2 +-
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 buildtools/wafsamba/samba_cross.py     |  2 +-
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 buildtools/wafsamba/samba_headers.py   |  2 +-
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 buildtools/wafsamba/samba_utils.py     |  4 ++--
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 buildtools/wafsamba/symbols.py         |  4 ++--
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 8 files changed, 17 insertions(+), 17 deletions(-)
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diff --git a/buildtools/wafsamba/configure_file.py b/buildtools/wafsamba/configure_file.py
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index 6ad43546249fba7b4c0a037035e8574e7a9d2753..98a58a4604513e3633317e73299c1c9280c250d2 100644
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--- a/buildtools/wafsamba/configure_file.py
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+++ b/buildtools/wafsamba/configure_file.py
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@@ -13,10 +13,10 @@ def subst_at_vars(task):
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     s = task.inputs[0].read()
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     # split on the vars
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-    a = re.split('(@\w+@)', s)
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+    a = re.split(r'(@\w+@)', s)
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     out = []
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     for v in a:
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-        if re.match('@\w+@', v):
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+        if re.match(r'@\w+@', v):
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             vname = v[1:-1]
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             if not vname in task.env and vname.upper() in task.env:
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                 vname = vname.upper()
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diff --git a/buildtools/wafsamba/pkgconfig.py b/buildtools/wafsamba/pkgconfig.py
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index b83d5f382a58352bb3318b594aa2b45fc02d87d5..b77bd618c8903789c7ba9e64a6972a4e080f1821 100644
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--- a/buildtools/wafsamba/pkgconfig.py
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+++ b/buildtools/wafsamba/pkgconfig.py
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@@ -9,12 +9,12 @@ def subst_at_vars(task):
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     s = task.inputs[0].read()
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     # split on the vars
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-    a = re.split('(@\w+@)', s)
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+    a = re.split(r'(@\w+@)', s)
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     out = []
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     done_var = {}
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     back_sub = [ ('PREFIX', '${prefix}'), ('EXEC_PREFIX', '${exec_prefix}')]
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     for v in a:
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-        if re.match('@\w+@', v):
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+        if re.match(r'@\w+@', v):
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             vname = v[1:-1]
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             if not vname in task.env and vname.upper() in task.env:
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                 vname = vname.upper()
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diff --git a/buildtools/wafsamba/samba_abi.py b/buildtools/wafsamba/samba_abi.py
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index 5e7686da3d68b1ebcd842b8a319a5997fa9cf600..761667fcfe1f3937be22c8261b45dcb3979ae4cd 100644
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--- a/buildtools/wafsamba/samba_abi.py
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+++ b/buildtools/wafsamba/samba_abi.py
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@@ -21,16 +21,16 @@ version_key = lambda x: list(map(int, x.split(".")))
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 def normalise_signature(sig):
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     '''normalise a signature from gdb'''
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     sig = sig.strip()
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-    sig = re.sub('^\$[0-9]+\s=\s\{(.+)\}$', r'\1', sig)
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-    sig = re.sub('^\$[0-9]+\s=\s\{(.+)\}(\s0x[0-9a-f]+\s<\w+>)+$', r'\1', sig)
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-    sig = re.sub('^\$[0-9]+\s=\s(0x[0-9a-f]+)\s?(<\w+>)?$', r'\1', sig)
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-    sig = re.sub('0x[0-9a-f]+', '0xXXXX', sig)
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+    sig = re.sub(r'^\$[0-9]+\s=\s\{(.+)\}$', r'\1', sig)
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+    sig = re.sub(r'^\$[0-9]+\s=\s\{(.+)\}(\s0x[0-9a-f]+\s<\w+>)+$', r'\1', sig)
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+    sig = re.sub(r'^\$[0-9]+\s=\s(0x[0-9a-f]+)\s?(<\w+>)?$', r'\1', sig)
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+    sig = re.sub(r'0x[0-9a-f]+', '0xXXXX', sig)
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     sig = re.sub('", <incomplete sequence (\\\\[a-z0-9]+)>', r'\1"', sig)
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     for t in abi_type_maps:
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         # we need to cope with non-word characters in mapped types
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         m = t
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-        m = m.replace('*', '\*')
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+        m = m.replace('*', r'\*')
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         if m[-1].isalnum() or m[-1] == '_':
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             m += '\\b'
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         if m[0].isalnum() or m[0] == '_':
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@@ -41,7 +41,7 @@ def normalise_signature(sig):
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 def normalise_varargs(sig):
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     '''cope with older versions of gdb'''
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-    sig = re.sub(',\s\.\.\.', '', sig)
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+    sig = re.sub(r',\s\.\.\.', '', sig)
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     return sig
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diff --git a/buildtools/wafsamba/samba_conftests.py b/buildtools/wafsamba/samba_conftests.py
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index ef632ba903369e4211991f17a3b204bcd96c3a2f..63e50567860ff890b00b0ce6c7607c917b7329d1 100644
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--- a/buildtools/wafsamba/samba_conftests.py
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+++ b/buildtools/wafsamba/samba_conftests.py
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@@ -397,7 +397,7 @@ WriteMakefile(
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     if section:
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         man = Utils.readf(os.path.join(bdir,'Makefile'))
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-        m = re.search('MAN%sEXT\s+=\s+(\w+)' % section, man)
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+        m = re.search(r'MAN%sEXT\s+=\s+(\w+)' % section, man)
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         if not m:
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             conf.end_msg('not found', color='YELLOW')
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             return
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diff --git a/buildtools/wafsamba/samba_cross.py b/buildtools/wafsamba/samba_cross.py
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index 8863c2c53e7d7dd9317c9233f0085ffd0eea6b2f..34793902fba884cf2d8358bf4315dc98027266b6 100644
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--- a/buildtools/wafsamba/samba_cross.py
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+++ b/buildtools/wafsamba/samba_cross.py
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@@ -77,7 +77,7 @@ def cross_answer(ca_file, msg):
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                 f.close()
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                 return (0, ans.strip("'"))
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             else:
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-                m = re.match('\(\s*(-?\d+)\s*,\s*\"(.*)\"\s*\)', ans)
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+                m = re.match(r'\(\s*(-?\d+)\s*,\s*\"(.*)\"\s*\)', ans)
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                 if m:
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                     f.close()
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                     return (int(m.group(1)), m.group(2))
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diff --git a/buildtools/wafsamba/samba_headers.py b/buildtools/wafsamba/samba_headers.py
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index a268c011c5d8e406e0d763554c55668cfb5388bc..c8bee19010978a04460b0637fcc8fd484a699ea8 100644
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--- a/buildtools/wafsamba/samba_headers.py
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+++ b/buildtools/wafsamba/samba_headers.py
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@@ -19,7 +19,7 @@ def header_install_path(header, header_path):
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     return ''
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-re_header = re.compile('^\s*#\s*include[ \t]*"([^"]+)"', re.I | re.M)
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+re_header = re.compile(r'^\s*#\s*include[ \t]*"([^"]+)"', re.I | re.M)
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 # a dictionary mapping source header paths to public header paths
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 header_map = {}
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diff --git a/buildtools/wafsamba/samba_utils.py b/buildtools/wafsamba/samba_utils.py
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index ad97de1859ba24c4afd5106b4f9694b0dc855643..75c9794ec40f327ef8ccf9aa33fafd6ed6181e3b 100644
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--- a/buildtools/wafsamba/samba_utils.py
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+++ b/buildtools/wafsamba/samba_utils.py
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@@ -255,10 +255,10 @@ def TO_LIST(str, delimiter=None):
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 def subst_vars_error(string, env):
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     '''substitute vars, throw an error if a variable is not defined'''
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-    lst = re.split('(\$\{\w+\})', string)
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+    lst = re.split(r'(\$\{\w+\})', string)
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     out = []
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     for v in lst:
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-        if re.match('\$\{\w+\}', v):
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+        if re.match(r'\$\{\w+\}', v):
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             vname = v[2:-1]
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             if not vname in env:
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                 raise KeyError("Failed to find variable %s in %s in env %s <%s>" % (vname, string, env.__class__, str(env)))
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diff --git a/buildtools/wafsamba/symbols.py b/buildtools/wafsamba/symbols.py
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index 3eca3d46bd71cf0780b3c8e36a26b96bd3aa3b83..73e8ca8ce53ef5d956ac58e14a2403dd49f01109 100644
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--- a/buildtools/wafsamba/symbols.py
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+++ b/buildtools/wafsamba/symbols.py
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@@ -119,9 +119,9 @@ def find_ldd_path(bld, libname, binary):
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 # some regular expressions for parsing readelf output
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-re_sharedlib = re.compile(b'Shared library: \[(.*)\]')
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+re_sharedlib = re.compile(r'Shared library: \[(.*)\]')
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 # output from readelf could be `Library rpath` or `Libray runpath`
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-re_rpath     = re.compile(b'Library (rpath|runpath): \[(.*)\]')
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+re_rpath     = re.compile(r'Library (rpath|runpath): \[(.*)\]')
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 def get_libs(bld, binname):
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     '''find the list of linked libraries for any binary or library
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-- 
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2.23.0.rc2
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