diff options
| -rw-r--r-- | Tools/idle/ReplaceDialog.py | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/Tools/idle/ReplaceDialog.py b/Tools/idle/ReplaceDialog.py index e29d4d6..83462f9 100644 --- a/Tools/idle/ReplaceDialog.py +++ b/Tools/idle/ReplaceDialog.py @@ -90,7 +90,7 @@ class ReplaceDialog(SearchDialogBase): line, m = res chars = text.get("%d.0" % line, "%d.0" % (line+1)) orig = m.group() - new = re.pcre_expand(m, repl) + new = self._expand(m, repl) i, j = m.span() first = "%d.%d" % (line, i) last = "%d.%d" % (line, j) @@ -142,7 +142,7 @@ class ReplaceDialog(SearchDialogBase): m = prog.match(chars, col) if not prog: return 0 - new = re.pcre_expand(m, self.replvar.get()) + new = self._expand(m, self.replvar.get()) text.mark_set("insert", first) text.undo_block_start() if m.group(): @@ -154,6 +154,22 @@ class ReplaceDialog(SearchDialogBase): self.ok = 0 return 1 + def _expand(self, m, template): + # XXX This code depends on internals of the regular expression + # engine! There's no standard API to do a substitution when you + # have already found the match. One should be added. + # The solution here is designed to be backwards compatible + # with previous Python versions, e.g. 1.5.2. + # XXX This dynamic test should be done only once. + if getattr(re, "engine", "pre") == "pre": + return re.pcre_expand(m, template) + else: # sre + # XXX This import should be avoidable... + import sre_parse + # XXX This parses the template over and over... + ptemplate = sre_parse.parse_template(template, m.re) + return sre_parse.expand_template(ptemplate, m) + def show_hit(self, first, last): text = self.text text.mark_set("insert", first) |