Merge branch 'rickard/pcre-8.40'

OTP-14331

* rickard/pcre-8.40:
  Update documentation
  Update README.pcre_update.md
  Stack guard for PCRE
  Adjust for incompatibility between PCRE 8.40 and perl 5.22.1
  Generate re replacement and split tests with perl vsn 5.22.1
  Fix re_SUITE:pcre_compile_workspace_overflow/1
  Skip line with lockout of modifiers in PCRE tests
  Update tests for PCRE version 8.40
  Update PCRE to version 8.40

Conflicts:
	erts/emulator/beam/beam_debug.c

1 files changed, 787 insertions, 23 deletions

diff --git a/lib/stdlib/test/re_SUITE_data/testoutput7 b/lib/stdlib/test/re_SUITE_data/testoutput7
index ddd96fc2ed..2b167b28d1 100644
--- a/lib/stdlib/test/re_SUITE_data/testoutput7
+++ b/lib/stdlib/test/re_SUITE_data/testoutput7
@@ -78,7 +78,7 @@ No need char
 /[\p{Nd}+-]+/8DZ
 ------------------------------------------------------------------
         Bra
-        [+\-\p{Nd}]+
+        [+\-\p{Nd}]++
         Ket
         End
 ------------------------------------------------------------------
@@ -124,7 +124,7 @@ No match
 /[z-\x{100}]/8iDZ 
 ------------------------------------------------------------------
         Bra
-        [Z\x{39c}\x{3bc}\x{1e9e}\x{178}z-\x{101}]
+        [Zz-\xff\x{39c}\x{3bc}\x{212b}\x{1e9e}\x{212b}\x{178}\x{100}-\x{101}]
         Ket
         End
 ------------------------------------------------------------------
@@ -162,7 +162,7 @@ No match
 /[z-\x{100}]/8DZi
 ------------------------------------------------------------------
         Bra
-        [Z\x{39c}\x{3bc}\x{1e9e}\x{178}z-\x{101}]
+        [Zz-\xff\x{39c}\x{3bc}\x{212b}\x{1e9e}\x{212b}\x{178}\x{100}-\x{101}]
         Ket
         End
 ------------------------------------------------------------------
@@ -270,6 +270,20 @@ No need char
         End
 ------------------------------------------------------------------
 
+/^\p{Cf}/8
+    \x{180e}
+ 0: \x{180e}
+    \x{061c}
+ 0: \x{61c}
+    \x{2066}
+ 0: \x{2066}
+    \x{2067}
+ 0: \x{2067}
+    \x{2068}
+ 0: \x{2068}
+    \x{2069}
+ 0: \x{2069}
+
 /^\p{Cs}/8
     \?\x{dfff}
  0: \x{dfff}
@@ -278,6 +292,22 @@ No match
     \x{09f} 
 No match
   
+/^\p{Mn}/8
+    \x{1a1b}
+ 0: \x{1a1b}
+
+/^\p{Pe}/8
+    \x{2309}
+ 0: \x{2309}
+    \x{230b}
+ 0: \x{230b}
+
+/^\p{Ps}/8
+    \x{2308}
+ 0: \x{2308}
+    \x{230a}
+ 0: \x{230a}
+
 /^\p{Sc}+/8
     $\x{a2}\x{a3}\x{a4}\x{a5}\x{a6}
  0: $\x{a2}\x{a3}\x{a4}\x{a5}
@@ -297,8 +327,6 @@ No match
  0: \x{a0}
     \x{1680}
  0: \x{1680}
-    \x{180e}
- 0: \x{180e}
     \x{2000}
  0: \x{2000}
     \x{2001}     
@@ -310,8 +338,9 @@ No match
     \x{200d} 
 No match
   
-/-- These four are here rather than in test 6 because Perl has problems with
-    the negative versions of the properties. --/
+/-- These are here rather than in test 6 because Perl has problems with
+    the negative versions of the properties and behaves has changed how
+    it behaves for caseless matching. --/
       
 /\p{^Lu}/8i
     1234
@@ -351,6 +380,16 @@ No match
     \x{1d00}  
 No match
 
+/\p{Lu}/8i
+    A
+ 0: A
+    aZ
+ 0: Z
+    ** Failers
+ 0: F
+    abc   
+No match
+
 /[\x{c0}\x{391}]/8i
     \x{c0}
  0: \x{c0}
@@ -501,7 +540,7 @@ No match
 
 /^>\p{Xsp}+/8
     > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}\x{0b}
- 0: > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}
+ 0: > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}\x{0b}
 
 /^>\p{Xsp}+?/8
     >\x{1680}\x{2028}\x{0b}
@@ -509,11 +548,11 @@ No match
 
 /^>\p{Xsp}*/8
     > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}\x{0b}
- 0: > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}
+ 0: > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}\x{0b}
     
 /^>\p{Xsp}{2,9}/8
     > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}\x{0b}
- 0: > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}
+ 0: > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}\x{0b}
     
 /^>\p{Xsp}{2,9}?/8
     > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}\x{0b}
@@ -525,7 +564,7 @@ No match
  
 /^>[\p{Xsp}]+/8
     > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}\x{0b}
- 0: > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}
+ 0: > \x{09}\x{0a}\x{0c}\x{0d}\x{a0}\x{1680}\x{2028}\x{0b}
 
 /^>\p{Xps}/8
     >\x{1680}\x{2028}\x{0b}
@@ -820,7 +859,7 @@ No match
 /[[:graph:]]/WBZ
 ------------------------------------------------------------------
         Bra
-        [!-~]
+        [[:graph:]]
         Ket
         End
 ------------------------------------------------------------------
@@ -828,7 +867,7 @@ No match
 /[[:print:]]/WBZ
 ------------------------------------------------------------------
         Bra
-        [ -~]
+        [[:print:]]
         Ket
         End
 ------------------------------------------------------------------
@@ -836,7 +875,7 @@ No match
 /[[:punct:]]/WBZ
 ------------------------------------------------------------------
         Bra
-        [!-/:-@[-`{-~]
+        [[:punct:]]
         Ket
         End
 ------------------------------------------------------------------
@@ -910,7 +949,7 @@ No match
 /[[:^alpha:][:^cntrl:]]+/8WBZ
 ------------------------------------------------------------------
         Bra
-        [ -~\x80-\xff\P{L}]+
+        [ -~\x80-\xff\P{L}\x{100}-\x{10ffff}]++
         Ket
         End
 ------------------------------------------------------------------
@@ -922,7 +961,7 @@ No match
 /[[:^cntrl:][:^alpha:]]+/8WBZ
 ------------------------------------------------------------------
         Bra
-        [ -~\x80-\xff\P{L}]+
+        [ -~\x80-\xff\x{100}-\x{10ffff}\P{L}]++
         Ket
         End
 ------------------------------------------------------------------
@@ -934,7 +973,7 @@ No match
 /[[:alpha:]]+/8WBZ
 ------------------------------------------------------------------
         Bra
-        [\p{L}]+
+        [\p{L}]++
         Ket
         End
 ------------------------------------------------------------------
@@ -944,7 +983,7 @@ No match
 /[[:^alpha:]\S]+/8WBZ
 ------------------------------------------------------------------
         Bra
-        [\P{L}\P{Xsp}]+
+        [\P{L}\P{Xsp}]++
         Ket
         End
 ------------------------------------------------------------------
@@ -956,7 +995,7 @@ No match
 /[^\d]+/8WBZ
 ------------------------------------------------------------------
         Bra
-        [^\p{Nd}]+
+        [^\p{Nd}]++
         Ket
         End
 ------------------------------------------------------------------
@@ -1070,8 +1109,8 @@ No match
         prop Nd
         B+
         prop N *+
-        B+
-        prop Nd *
+        B++
+        prop Nd *+
         Ket
         End
 ------------------------------------------------------------------
@@ -1347,7 +1386,7 @@ Need char = 'B' (caseless)
 /[\x{3a3}]+/8iBZ
 ------------------------------------------------------------------
         Bra
-        clist 03a3 03c2 03c3 +
+        clist 03a3 03c2 03c3 ++
         Ket
         End
 ------------------------------------------------------------------
@@ -1355,7 +1394,7 @@ Need char = 'B' (caseless)
 /[^\x{3a3}]+/8iBZ
 ------------------------------------------------------------------
         Bra
-        not clist 03a3 03c2 03c3 +
+        not clist 03a3 03c2 03c3 ++
         Ket
         End
 ------------------------------------------------------------------
@@ -1577,5 +1616,730 @@ No match
 No match
     \x{1234}abc
 No match
+    
+/-- Some auto-possessification tests --/
+
+/\pN+\z/BZ
+------------------------------------------------------------------
+        Bra
+        prop N ++
+        \z
+        Ket
+        End
+------------------------------------------------------------------
+
+/\PN+\z/BZ
+------------------------------------------------------------------
+        Bra
+        notprop N ++
+        \z
+        Ket
+        End
+------------------------------------------------------------------
+
+/\pN+/BZ
+------------------------------------------------------------------
+        Bra
+        prop N ++
+        Ket
+        End
+------------------------------------------------------------------
+
+/\PN+/BZ
+------------------------------------------------------------------
+        Bra
+        notprop N ++
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Any}+\p{Any} \p{Any}+\P{Any} \p{Any}+\p{L&} \p{Any}+\p{L} \p{Any}+\p{Lu} \p{Any}+\p{Han} \p{Any}+\p{Xan} \p{Any}+\p{Xsp} \p{Any}+\p{Xps} \p{Xwd}+\p{Any} \p{Any}+\p{Xuc}/BWZx  
+------------------------------------------------------------------
+        Bra
+        prop Any +
+        prop Any
+        prop Any +
+        notprop Any
+        prop Any +
+        prop L&
+        prop Any +
+        prop L
+        prop Any +
+        prop Lu
+        prop Any +
+        prop Han
+        prop Any +
+        prop Xan
+        prop Any +
+        prop Xsp
+        prop Any +
+        prop Xps
+        prop Xwd +
+        prop Any
+        prop Any +
+        prop Xuc
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{L&}+\p{Any} \p{L&}+\p{L&} \P{L&}+\p{L&} \p{L&}+\p{L} \p{L&}+\p{Lu} \p{L&}+\p{Han} \p{L&}+\p{Xan} \p{L&}+\P{Xan} \p{L&}+\p{Xsp} \p{L&}+\p{Xps} \p{Xwd}+\p{L&} \p{L&}+\p{Xuc}/BWZx  
+------------------------------------------------------------------
+        Bra
+        prop L& +
+        prop Any
+        prop L& +
+        prop L&
+        notprop L& ++
+        prop L&
+        prop L& +
+        prop L
+        prop L& +
+        prop Lu
+        prop L& +
+        prop Han
+        prop L& +
+        prop Xan
+        prop L& ++
+        notprop Xan
+        prop L& ++
+        prop Xsp
+        prop L& ++
+        prop Xps
+        prop Xwd +
+        prop L&
+        prop L& +
+        prop Xuc
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{N}+\p{Any} \p{N}+\p{L&} \p{N}+\p{L} \p{N}+\P{L} \p{N}+\P{N} \p{N}+\p{Lu} \p{N}+\p{Han} \p{N}+\p{Xan} \p{N}+\p{Xsp} \p{N}+\p{Xps} \p{Xwd}+\p{N} \p{N}+\p{Xuc}/BWZx  
+------------------------------------------------------------------
+        Bra
+        prop N +
+        prop Any
+        prop N +
+        prop L&
+        prop N ++
+        prop L
+        prop N +
+        notprop L
+        prop N ++
+        notprop N
+        prop N ++
+        prop Lu
+        prop N +
+        prop Han
+        prop N +
+        prop Xan
+        prop N ++
+        prop Xsp
+        prop N ++
+        prop Xps
+        prop Xwd +
+        prop N
+        prop N +
+        prop Xuc
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Lu}+\p{Any} \p{Lu}+\p{L&} \p{Lu}+\p{L} \p{Lu}+\p{Lu} \P{Lu}+\p{Lu} \p{Lu}+\p{Nd} \p{Lu}+\P{Nd} \p{Lu}+\p{Han} \p{Lu}+\p{Xan} \p{Lu}+\p{Xsp} \p{Lu}+\p{Xps} \p{Xwd}+\p{Lu} \p{Lu}+\p{Xuc}/BWZx  
+------------------------------------------------------------------
+        Bra
+        prop Lu +
+        prop Any
+        prop Lu +
+        prop L&
+        prop Lu +
+        prop L
+        prop Lu +
+        prop Lu
+        notprop Lu ++
+        prop Lu
+        prop Lu ++
+        prop Nd
+        prop Lu +
+        notprop Nd
+        prop Lu +
+        prop Han
+        prop Lu +
+        prop Xan
+        prop Lu ++
+        prop Xsp
+        prop Lu ++
+        prop Xps
+        prop Xwd +
+        prop Lu
+        prop Lu +
+        prop Xuc
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Han}+\p{Lu} \p{Han}+\p{L&} \p{Han}+\p{L} \p{Han}+\p{Lu} \p{Han}+\p{Arabic} \p{Arabic}+\p{Arabic} \p{Han}+\p{Xan} \p{Han}+\p{Xsp} \p{Han}+\p{Xps} \p{Xwd}+\p{Han} \p{Han}+\p{Xuc}/BWZx  
+------------------------------------------------------------------
+        Bra
+        prop Han +
+        prop Lu
+        prop Han +
+        prop L&
+        prop Han +
+        prop L
+        prop Han +
+        prop Lu
+        prop Han ++
+        prop Arabic
+        prop Arabic +
+        prop Arabic
+        prop Han +
+        prop Xan
+        prop Han +
+        prop Xsp
+        prop Han +
+        prop Xps
+        prop Xwd +
+        prop Han
+        prop Han +
+        prop Xuc
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Xan}+\p{Any} \p{Xan}+\p{L&} \P{Xan}+\p{L&} \p{Xan}+\p{L} \p{Xan}+\p{Lu} \p{Xan}+\p{Han} \p{Xan}+\p{Xan} \p{Xan}+\P{Xan} \p{Xan}+\p{Xsp} \p{Xan}+\p{Xps} \p{Xwd}+\p{Xan} \p{Xan}+\p{Xuc}/BWZx  
+------------------------------------------------------------------
+        Bra
+        prop Xan +
+        prop Any
+        prop Xan +
+        prop L&
+        notprop Xan ++
+        prop L&
+        prop Xan +
+        prop L
+        prop Xan +
+        prop Lu
+        prop Xan +
+        prop Han
+        prop Xan +
+        prop Xan
+        prop Xan ++
+        notprop Xan
+        prop Xan ++
+        prop Xsp
+        prop Xan ++
+        prop Xps
+        prop Xwd +
+        prop Xan
+        prop Xan +
+        prop Xuc
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Xsp}+\p{Any} \p{Xsp}+\p{L&} \p{Xsp}+\p{L} \p{Xsp}+\p{Lu} \p{Xsp}+\p{Han} \p{Xsp}+\p{Xan} \p{Xsp}+\p{Xsp} \P{Xsp}+\p{Xsp} \p{Xsp}+\p{Xps} \p{Xwd}+\p{Xsp} \p{Xsp}+\p{Xuc}/BWZx  
+------------------------------------------------------------------
+        Bra
+        prop Xsp +
+        prop Any
+        prop Xsp ++
+        prop L&
+        prop Xsp ++
+        prop L
+        prop Xsp ++
+        prop Lu
+        prop Xsp +
+        prop Han
+        prop Xsp ++
+        prop Xan
+        prop Xsp +
+        prop Xsp
+        notprop Xsp ++
+        prop Xsp
+        prop Xsp +
+        prop Xps
+        prop Xwd ++
+        prop Xsp
+        prop Xsp +
+        prop Xuc
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Xwd}+\p{Any} \p{Xwd}+\p{L&} \p{Xwd}+\p{L} \p{Xwd}+\p{Lu} \p{Xwd}+\p{Han} \p{Xwd}+\p{Xan} \p{Xwd}+\p{Xsp} \p{Xwd}+\p{Xps} \p{Xwd}+\p{Xwd} \p{Xwd}+\P{Xwd} \p{Xwd}+\p{Xuc}/BWZx  
+------------------------------------------------------------------
+        Bra
+        prop Xwd +
+        prop Any
+        prop Xwd +
+        prop L&
+        prop Xwd +
+        prop L
+        prop Xwd +
+        prop Lu
+        prop Xwd +
+        prop Han
+        prop Xwd +
+        prop Xan
+        prop Xwd ++
+        prop Xsp
+        prop Xwd ++
+        prop Xps
+        prop Xwd +
+        prop Xwd
+        prop Xwd ++
+        notprop Xwd
+        prop Xwd +
+        prop Xuc
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Xuc}+\p{Any} \p{Xuc}+\p{L&} \p{Xuc}+\p{L} \p{Xuc}+\p{Lu} \p{Xuc}+\p{Han} \p{Xuc}+\p{Xan} \p{Xuc}+\p{Xsp} \p{Xuc}+\p{Xps} \p{Xwd}+\p{Xuc} \p{Xuc}+\p{Xuc} \p{Xuc}+\P{Xuc}/BWZx  
+------------------------------------------------------------------
+        Bra
+        prop Xuc +
+        prop Any
+        prop Xuc +
+        prop L&
+        prop Xuc +
+        prop L
+        prop Xuc +
+        prop Lu
+        prop Xuc +
+        prop Han
+        prop Xuc +
+        prop Xan
+        prop Xuc +
+        prop Xsp
+        prop Xuc +
+        prop Xps
+        prop Xwd +
+        prop Xuc
+        prop Xuc +
+        prop Xuc
+        prop Xuc ++
+        notprop Xuc
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{N}+\p{Ll} \p{N}+\p{Nd} \p{N}+\P{Nd}/BWZx
+------------------------------------------------------------------
+        Bra
+        prop N ++
+        prop Ll
+        prop N +
+        prop Nd
+        prop N +
+        notprop Nd
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Xan}+\p{L} \p{Xan}+\p{N} \p{Xan}+\p{C} \p{Xan}+\P{L} \P{Xan}+\p{N} \p{Xan}+\P{C}/BWZx
+------------------------------------------------------------------
+        Bra
+        prop Xan +
+        prop L
+        prop Xan +
+        prop N
+        prop Xan ++
+        prop C
+        prop Xan +
+        notprop L
+        notprop Xan ++
+        prop N
+        prop Xan +
+        notprop C
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{L}+\p{Xan} \p{N}+\p{Xan} \p{C}+\p{Xan} \P{L}+\p{Xan} \p{N}+\p{Xan} \P{C}+\p{Xan} \p{L}+\P{Xan}/BWZx
+------------------------------------------------------------------
+        Bra
+        prop L +
+        prop Xan
+        prop N +
+        prop Xan
+        prop C ++
+        prop Xan
+        notprop L +
+        prop Xan
+        prop N +
+        prop Xan
+        notprop C +
+        prop Xan
+        prop L ++
+        notprop Xan
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Xan}+\p{Lu} \p{Xan}+\p{Nd} \p{Xan}+\p{Cc} \p{Xan}+\P{Ll} \P{Xan}+\p{No} \p{Xan}+\P{Cf}/BWZx
+------------------------------------------------------------------
+        Bra
+        prop Xan +
+        prop Lu
+        prop Xan +
+        prop Nd
+        prop Xan ++
+        prop Cc
+        prop Xan +
+        notprop Ll
+        notprop Xan ++
+        prop No
+        prop Xan +
+        notprop Cf
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Lu}+\p{Xan} \p{Nd}+\p{Xan} \p{Cs}+\p{Xan} \P{Lt}+\p{Xan} \p{Nl}+\p{Xan} \P{Cc}+\p{Xan} \p{Lt}+\P{Xan}/BWZx
+------------------------------------------------------------------
+        Bra
+        prop Lu +
+        prop Xan
+        prop Nd +
+        prop Xan
+        prop Cs ++
+        prop Xan
+        notprop Lt +
+        prop Xan
+        prop Nl +
+        prop Xan
+        notprop Cc +
+        prop Xan
+        prop Lt ++
+        notprop Xan
+        Ket
+        End
+------------------------------------------------------------------
+
+/\w+\p{P} \w+\p{Po} \w+\s \p{Xan}+\s \s+\p{Xan} \s+\w/BWZx
+------------------------------------------------------------------
+        Bra
+        prop Xwd +
+        prop P
+        prop Xwd +
+        prop Po
+        prop Xwd ++
+        prop Xsp
+        prop Xan ++
+        prop Xsp
+        prop Xsp ++
+        prop Xan
+        prop Xsp ++
+        prop Xwd
+        Ket
+        End
+------------------------------------------------------------------
+
+/\w+\P{P} \W+\p{Po} \w+\S \P{Xan}+\s \s+\P{Xan} \s+\W/BWZx
+------------------------------------------------------------------
+        Bra
+        prop Xwd +
+        notprop P
+        notprop Xwd +
+        prop Po
+        prop Xwd +
+        notprop Xsp
+        notprop Xan +
+        prop Xsp
+        prop Xsp +
+        notprop Xan
+        prop Xsp +
+        notprop Xwd
+        Ket
+        End
+------------------------------------------------------------------
+
+/\w+\p{Po} \w+\p{Pc} \W+\p{Po} \W+\p{Pc} \w+\P{Po} \w+\P{Pc}/BWZx
+------------------------------------------------------------------
+        Bra
+        prop Xwd +
+        prop Po
+        prop Xwd ++
+        prop Pc
+        notprop Xwd +
+        prop Po
+        notprop Xwd +
+        prop Pc
+        prop Xwd +
+        notprop Po
+        prop Xwd +
+        notprop Pc
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Nl}+\p{Xan} \P{Nl}+\p{Xan} \p{Nl}+\P{Xan} \P{Nl}+\P{Xan}/BWZx
+------------------------------------------------------------------
+        Bra
+        prop Nl +
+        prop Xan
+        notprop Nl +
+        prop Xan
+        prop Nl ++
+        notprop Xan
+        notprop Nl +
+        notprop Xan
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Xan}+\p{Nl} \P{Xan}+\p{Nl} \p{Xan}+\P{Nl} \P{Xan}+\P{Nl}/BWZx
+------------------------------------------------------------------
+        Bra
+        prop Xan +
+        prop Nl
+        notprop Xan ++
+        prop Nl
+        prop Xan +
+        notprop Nl
+        notprop Xan +
+        notprop Nl
+        Ket
+        End
+------------------------------------------------------------------
+
+/\p{Xan}+\p{Nd} \P{Xan}+\p{Nd} \p{Xan}+\P{Nd} \P{Xan}+\P{Nd}/BWZx
+------------------------------------------------------------------
+        Bra
+        prop Xan +
+        prop Nd
+        notprop Xan ++
+        prop Nd
+        prop Xan +
+        notprop Nd
+        notprop Xan +
+        notprop Nd
+        Ket
+        End
+------------------------------------------------------------------
+
+/-- End auto-possessification tests --/ 
+
+/\w+/8CWBZ
+------------------------------------------------------------------
+        Bra
+        Callout 255 0 3
+        prop Xwd ++
+        Callout 255 3 0
+        Ket
+        End
+------------------------------------------------------------------
+    abcd
+--->abcd
+ +0 ^        \w+
+ +3 ^   ^    
+ 0: abcd
+
+/[\p{N}]?+/BZO
+------------------------------------------------------------------
+        Bra
+        [\p{N}]?+
+        Ket
+        End
+------------------------------------------------------------------
+
+/[\p{L}ab]{2,3}+/BZO
+------------------------------------------------------------------
+        Bra
+        [ab\p{L}]{2,3}+
+        Ket
+        End
+------------------------------------------------------------------
+
+/\D+\X \d+\X \S+\X \s+\X \W+\X \w+\X \C+\X \R+\X \H+\X \h+\X \V+\X \v+\X a+\X \n+\X .+\X/BZx
+------------------------------------------------------------------
+        Bra
+        \D+
+        extuni
+        \d+
+        extuni
+        \S+
+        extuni
+        \s+
+        extuni
+        \W+
+        extuni
+        \w+
+        extuni
+        AllAny+
+        extuni
+        \R+
+        extuni
+        \H+
+        extuni
+        \h+
+        extuni
+        \V+
+        extuni
+        \v+
+        extuni
+        a+
+        extuni
+        \x0a+
+        extuni
+        Any+
+        extuni
+        Ket
+        End
+------------------------------------------------------------------
+
+/.+\X/BZxs
+------------------------------------------------------------------
+        Bra
+        AllAny+
+        extuni
+        Ket
+        End
+------------------------------------------------------------------
+
+/\X+$/BZxm
+------------------------------------------------------------------
+        Bra
+        extuni+
+     /m $
+        Ket
+        End
+------------------------------------------------------------------
+
+/\X+\D \X+\d \X+\S \X+\s \X+\W \X+\w \X+. \X+\C \X+\R \X+\H \X+\h \X+\V \X+\v \X+\X \X+\Z \X+\z \X+$/BZx
+------------------------------------------------------------------
+        Bra
+        extuni+
+        \D
+        extuni+
+        \d
+        extuni+
+        \S
+        extuni+
+        \s
+        extuni+
+        \W
+        extuni+
+        \w
+        extuni+
+        Any
+        extuni+
+        AllAny
+        extuni+
+        \R
+        extuni+
+        \H
+        extuni+
+        \h
+        extuni+
+        \V
+        extuni+
+        \v
+        extuni+
+        extuni
+        extuni+
+        \Z
+        extuni++
+        \z
+        extuni+
+        $
+        Ket
+        End
+------------------------------------------------------------------
+
+/\d+\s{0,5}=\s*\S?=\w{0,4}\W*/8WBZ
+------------------------------------------------------------------
+        Bra
+        prop Nd ++
+        prop Xsp {0,5}+
+        =
+        prop Xsp *+
+        notprop Xsp ?
+        =
+        prop Xwd {0,4}+
+        notprop Xwd *+
+        Ket
+        End
+------------------------------------------------------------------
+
+/[RST]+/8iWBZ
+------------------------------------------------------------------
+        Bra
+        [R-Tr-t\x{17f}]++
+        Ket
+        End
+------------------------------------------------------------------
+    
+/[R-T]+/8iWBZ 
+------------------------------------------------------------------
+        Bra
+        [R-Tr-t\x{17f}]++
+        Ket
+        End
+------------------------------------------------------------------
+
+/[Q-U]+/8iWBZ 
+------------------------------------------------------------------
+        Bra
+        [Q-Uq-u\x{17f}]++
+        Ket
+        End
+------------------------------------------------------------------
+
+/^s?c/mi8I
+Capturing subpattern count = 0
+Options: caseless multiline utf
+First char at start or follows newline
+Need char = 'c' (caseless)
+    scat
+ 0: sc
+
+/a[[:punct:]b]/WBZ
+------------------------------------------------------------------
+        Bra
+        a
+        [b[:punct:]]
+        Ket
+        End
+------------------------------------------------------------------
+
+/a[[:punct:]b]/8WBZ
+------------------------------------------------------------------
+        Bra
+        a
+        [b[:punct:]]
+        Ket
+        End
+------------------------------------------------------------------
+
+/a[b[:punct:]]/8WBZ
+------------------------------------------------------------------
+        Bra
+        a
+        [b[:punct:]]
+        Ket
+        End
+------------------------------------------------------------------
+
+/L(?#(|++<!(2)?/B8COZ
+------------------------------------------------------------------
+        Bra
+        Callout 255 0 14
+        L?
+        Callout 255 14 0
+        Ket
+        End
+------------------------------------------------------------------
+
+/L(?#(|++<!(2)?/B8WCZ
+------------------------------------------------------------------
+        Bra
+        Callout 255 0 14
+        L?+
+        Callout 255 14 0
+        Ket
+        End
+------------------------------------------------------------------
 
 /-- End of testinput7 --/