Revert "Issue #1284 - Implement /s (dotAll) for regular expressions."

This reverts commit f31b04a303607cd82757e7c4f60bb536658c8a30.

2 files changed, 4 insertions, 49 deletions

diff --git a/js/src/irregexp/RegExpParser.cpp b/js/src/irregexp/RegExpParser.cpp
index 28abdb0b4..9ef9fe3e2 100644
--- a/js/src/irregexp/RegExpParser.cpp
+++ b/js/src/irregexp/RegExpParser.cpp
@@ -1384,7 +1384,7 @@ UnicodeEverythingAtom(LifoAlloc* alloc)
 {
     RegExpBuilder* builder = alloc->newInfallible<RegExpBuilder>(alloc);
 
-    // Everything except \x0a, \x0d, \u2028 and \u2029
+    // everything except \x0a, \x0d, \u2028 and \u2029
 
     CharacterRangeVector* ranges = alloc->newInfallible<CharacterRangeVector>(*alloc);
     ranges->append(CharacterRange::Range(0x0, 0x09));
@@ -1414,38 +1414,6 @@ UnicodeEverythingAtom(LifoAlloc* alloc)
     return builder->ToRegExp();
 }
 
-static inline RegExpTree*
-UnicodeDotAllAtom(LifoAlloc* alloc)
-{
-    RegExpBuilder* builder = alloc->newInfallible<RegExpBuilder>(alloc);
-
-    // Full range excluding surrogates because /s was specified
-
-    CharacterRangeVector* ranges = alloc->newInfallible<CharacterRangeVector>(*alloc);
-    ranges->append(CharacterRange::Range(0x0, unicode::LeadSurrogateMin - 1));
-    ranges->append(CharacterRange::Range(unicode::TrailSurrogateMax + 1, unicode::UTF16Max));
-    builder->AddAtom(alloc->newInfallible<RegExpCharacterClass>(ranges, false));
-
-    builder->NewAlternative();
-
-    builder->AddAtom(RangeAtom(alloc, unicode::LeadSurrogateMin, unicode::LeadSurrogateMax));
-    builder->AddAtom(NegativeLookahead(alloc, unicode::TrailSurrogateMin,
-                                       unicode::TrailSurrogateMax));
-
-    builder->NewAlternative();
-
-    builder->AddAssertion(alloc->newInfallible<RegExpAssertion>(
-        RegExpAssertion::NOT_AFTER_LEAD_SURROGATE));
-    builder->AddAtom(RangeAtom(alloc, unicode::TrailSurrogateMin, unicode::TrailSurrogateMax));
-
-    builder->NewAlternative();
-
-    builder->AddAtom(RangeAtom(alloc, unicode::LeadSurrogateMin, unicode::LeadSurrogateMax));
-    builder->AddAtom(RangeAtom(alloc, unicode::TrailSurrogateMin, unicode::TrailSurrogateMax));
-
-    return builder->ToRegExp();
-}
-
 RegExpTree*
 UnicodeCharacterClassEscapeAtom(LifoAlloc* alloc, char16_t char_class, bool ignore_case)
 {
@@ -1573,25 +1541,13 @@ RegExpParser<CharT>::ParseDisjunction()
           }
           case '.': {
             Advance();
-            
+            // everything except \x0a, \x0d, \u2028 and \u2029
             if (unicode_) {
-                if (dotall_) {
-                    // Everything
-                    builder->AddAtom(UnicodeDotAllAtom(alloc));
-                } else {
-                    // Everything except \x0a, \x0d, \u2028 and \u2029
-                    builder->AddAtom(UnicodeEverythingAtom(alloc));
-                }
+                builder->AddAtom(UnicodeEverythingAtom(alloc));
                 break;
             }
             CharacterRangeVector* ranges = alloc->newInfallible<CharacterRangeVector>(*alloc);
-            if (dotall_) {
-                // Everything
-                CharacterRange::AddClassEscape(alloc, '*', ranges);
-            } else {
-                // Everything except \x0a, \x0d, \u2028 and \u2029
-                CharacterRange::AddClassEscape(alloc, '.', ranges);
-            }
+            CharacterRange::AddClassEscape(alloc, '.', ranges);
             RegExpTree* atom = alloc->newInfallible<RegExpCharacterClass>(ranges, false);
             builder->AddAtom(atom);
             break;
diff --git a/js/src/irregexp/RegExpParser.h b/js/src/irregexp/RegExpParser.h
index 36c24cd7c..2f02625b5 100644
--- a/js/src/irregexp/RegExpParser.h
+++ b/js/src/irregexp/RegExpParser.h
@@ -313,7 +313,6 @@ class RegExpParser
     bool multiline_;
     bool unicode_;
     bool ignore_case_;
-    bool dotall_;
     bool simple_;
     bool contains_anchor_;
     bool is_scanned_for_captures_;