diff options
Diffstat (limited to 'engine/SCons/Subst.py')
| -rw-r--r-- | engine/SCons/Subst.py | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/engine/SCons/Subst.py b/engine/SCons/Subst.py index 90c12a0..9d0ec2a 100644 --- a/engine/SCons/Subst.py +++ b/engine/SCons/Subst.py @@ -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 74b2c53bc42290e911b334a6b44f187da698a668 2017/11/14 13:16:53 bdbaddog" import collections import re @@ -338,7 +338,10 @@ 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 $. (Thus the (?<!\$)) +_rm_split = re.compile(r'(?<!\$)(\$[()])') # Indexed by the SUBST_* constants above. _regex_remove = [ _rm, None, _rm_split ] @@ -437,7 +440,11 @@ def scons_subst(strSubst, env, mode=SUBST_RAW, target=None, source=None, gvars={ if s0 != '$': 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 '$$' elif s1 in '()': return s else: @@ -583,6 +590,12 @@ def scons_subst(strSubst, env, mode=SUBST_RAW, target=None, source=None, gvars={ # Compress strings of white space characters into # a single space. result = _space_sep.sub(' ', result).strip() + + # Now replace escaped $'s currently "$$" + # 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: |