diff options
Diffstat (limited to 'src/engine/SCons/Subst.py')
| -rw-r--r-- | src/engine/SCons/Subst.py | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/src/engine/SCons/Subst.py b/src/engine/SCons/Subst.py index 90c12a0..4fc8461 100644 --- a/src/engine/SCons/Subst.py +++ b/src/engine/SCons/Subst.py @@ -5,7 +5,7 @@ SCons string substitution. """ # -# Copyright (c) 2001 - 2017 The SCons Foundation +# Copyright (c) 2001 - 2019 The SCons Foundation # # Permission is hereby granted, free of charge, to any person obtaining # a copy of this software and associated documentation files (the @@ -26,7 +26,7 @@ SCons string substitution. # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -__revision__ = "src/engine/SCons/Subst.py rel_3.0.0:4395:8972f6a2f699 2017/09/18 12:59:24 bdbaddog" +__revision__ = "src/engine/SCons/Subst.py 103260fce95bf5db1c35fb2371983087d85dd611 2019-07-13 18:25:30 bdbaddog" import collections import re @@ -86,6 +86,9 @@ class Literal(object): def __neq__(self, other): return not self.__eq__(other) + def __hash__(self): + return hash(self.lstr) + class SpecialAttrWrapper(object): """This is a wrapper for what we call a 'Node special attribute.' This is any of the attributes of a Node that we can reference from @@ -338,7 +341,10 @@ SUBST_RAW = 1 SUBST_SIG = 2 _rm = re.compile(r'\$[()]') -_rm_split = re.compile(r'(\$[()])') + +# Note the pattern below only matches $( or $) when there is no +# preceeding $. (Thus the (?<!\$)) +_rm_split = re.compile(r'(?<!\$)(\$[()])') # Indexed by the SUBST_* constants above. _regex_remove = [ _rm, None, _rm_split ] @@ -437,7 +443,11 @@ def scons_subst(strSubst, env, mode=SUBST_RAW, target=None, source=None, gvars={ if s0 != '$': return s if s1 == '$': - return '$' + # In this case keep the double $'s which we'll later + # swap for a single dollar sign as we need to retain + # this information to properly avoid matching "$("" when + # the actual text was "$$("" (or "$)"" when "$$)"" ) + return '$$' elif s1 in '()': return s else: @@ -583,6 +593,12 @@ def scons_subst(strSubst, env, mode=SUBST_RAW, target=None, source=None, gvars={ # Compress strings of white space characters into # a single space. result = _space_sep.sub(' ', result).strip() + + # Now replace escaped $'s currently "$$" + # This is needed because we now retain $$ instead of + # replacing them during substition to avoid + # improperly trying to escape "$$(" as being "$(" + result = result.replace('$$','$') elif is_Sequence(result): remove = _list_remove[mode] if remove: |