Fix deprecated use of '\' as described in https://bugs.python.org/issue27364 (Deprecated in Python 3.6, will become SyntaxError in a future release)

git-svn-id: svn://svn.code.sf.net/p/pyparsing/code/trunk@457 9bf210a0-9d2d-494c-87cf-cfb32e7dff7b

4 files changed, 7 insertions, 7 deletions

diff --git a/src/examples/btpyparse.py b/src/examples/btpyparse.py
index 6720c19..4fbbac8 100644
--- a/src/examples/btpyparse.py
+++ b/src/examples/btpyparse.py
@@ -54,16 +54,16 @@ number = Regex('[0-9]+')
 

 # Basis characters (by exclusion) for variable / field names.  The following

 # list of characters is from the btparse documentation

-any_name = Regex('[^\s"#%\'(),={}]+')

+any_name = Regex('[^\\s"#%\'(),={}]+')

 

 # btparse says, and the test bibs show by experiment, that macro and field names

 # cannot start with a digit.  In fact entry type names cannot start with a digit

 # either (see tests/bibs). Cite keys can start with a digit

-not_digname = Regex('[^\d\s"#%\'(),={}][^\s"#%\'(),={}]*')

+not_digname = Regex('[^\\d\\s"#%\'(),={}][^\\s"#%\'(),={}]*')

 

 # Comment comments out to end of line

 comment = (AT + CaselessLiteral('comment') +

-           Regex("[\s{(].*").leaveWhitespace())

+           Regex(r"[\s{(].*").leaveWhitespace())

 

 # The name types with their digiteyness

 not_dig_lower = not_digname.copy().setParseAction(lambda t: t[0].lower())

diff --git a/src/examples/invRegex.py b/src/examples/invRegex.py
index b6fe1f1..aea3b55 100644
--- a/src/examples/invRegex.py
+++ b/src/examples/invRegex.py
@@ -188,9 +188,9 @@ def count(gen):
     return sum(1 for _ in gen)

 

 def invert(regex):

-    """Call this routine as a generator to return all the strings that

+    r"""Call this routine as a generator to return all the strings that

        match the input regular expression.

-           for s in invert("[A-Z]{3}\d{3}"):

+           for s in invert(r"[A-Z]{3}\d{3}"):

                print s

     """

     invReGenerator = GroupEmitter(parser().parseString(regex)).makeGenerator()

diff --git a/src/examples/pythonGrammarParser.py b/src/examples/pythonGrammarParser.py
index f0631b8..f199917 100644
--- a/src/examples/pythonGrammarParser.py
+++ b/src/examples/pythonGrammarParser.py
@@ -9,7 +9,7 @@ from pyparsing import *
 # this just skips that step and inlines the bnf text directly - this grammar was taken from

 # Python 2.4.1

 #

-grammar = """

+grammar = r"""

 # Grammar for Python

 

 # Note:  Changing the grammar specified in this file will most likely

diff --git a/src/examples/verilogParse.py b/src/examples/verilogParse.py
index 2b7fd35..05650df 100644
--- a/src/examples/verilogParse.py
+++ b/src/examples/verilogParse.py
@@ -120,7 +120,7 @@ def Verilog_BNF():
 

         identLead = alphas+"$_"

         identBody = alphanums+"$_"

-        identifier1 = Regex( r"\.?["+identLead+"]["+identBody+"]*(\.["+identLead+"]["+identBody+"]*)*"

+        identifier1 = Regex( r"\.?["+identLead+"]["+identBody+r"]*(\.["+identLead+"]["+identBody+"]*)*"

                             ).setName("baseIdent")

         identifier2 = Regex(r"\\\S+").setParseAction(lambda t:t[0][1:]).setName("escapedIdent")#.setDebug()

         identifier = identifier1 | identifier2