View RegEx pattern string using windbg

0: 004>! Threads
**************************************** *****************************
* Symbols can not be loaded because symbol path is not initialized .*
**
* The symbol path can be set :*
* Using the _ nt_symbol_path environment variable .*
* Using the-Y <symbol_path> argument when starting the debugger .*
* Using. sympath and. sympath + *
**************************************** *****************************
PDB symbol for CLR. dll not loaded
Threadcount: 2
Unstartedthread: 0
Backgroundthread: 1
Pendingthread: 0
Deadthread: 0
Hosted runtime: No
Preemptive GC alloc lock
Id osid threadobj state GC context domain count apt exception
0 1 1774 0066c328 a020 enabled 021e5614: 021e5fe8 00665b58 0 MTA
2 2 17bc 00678150 b220 enabled restart failed :100000000 00665b58 0 MTA (finalizer)
0: 004> ~ 0 s
* ** Warning: unable to verify checksum for c: \ windows \ Assembly \ nativeimages_v4.0.30319_32 \ mscorlib \ b79870f56fb884856832833fe760f671 \ mscorlib. Ni. dll
* ** Error: module Load completed but symbols cocould not be loaded for c: \ windows \ Assembly \ nativeimages_v4.0.30319_32 \ mscorlib \ Alibaba \ mscorlib. Ni. dll
Eax = 00000001 EBX = 00000000 ECx = 00000000 edX = 00000000 ESI = 0015ec0c EDI = 0015eb88
EIP = 75947468 ESP = 0015 eafc EBP = 0015eb1c iopl = 0 NV up ei pl nz Na Po NC
Cs = 0023 Ss = 002b DS = 002b es = 002b FS = 0053 GS = 002b EFL = 00000202
Kernel32! Vdmconsoleoperation plus 0x246:
75947468 83c404 add ESP, 4
0: 000>! Dumpheap-type RegEx
....

Statistics:
Mt count totalsize Class Name
62b361b4 3 36 system. Text. regularexpressions. regexcharclass + singlerangecomparer
62b36188 3 36 system. Text. regularexpressions. regexcharclass + singlerange
62b362f8 3 48 system. Text. regularexpressions. regexfc
62b3611c 3 72 system. Collections. Generic. List '1 [[system. Text. regularexpressions. regexcharclass + singlerange, system]
62b35e4c 3 72 system. Collections. Generic. List '1 [[system. Text. regularexpressions. regexoptions, system]
62b35cf8 3 72 system. Text. regularexpressions. regexcharclass
62b362bc 3 84 system. Text. regularexpressions. regexfcd
62b364fc 6 96 system. Text. regularexpressions. regexprefix
62b35ff4 4 4 96 system. Text. regularexpressions. regexoptions []
62b36210 3 108 system. Text. regularexpressions. regextree
62b35a0c 3 120 system. Text. regularexpressions. regexboyermoore
62b36284 3 132 system. Text. regularexpressions. regexcode
62b36248 3 144 system. Text. regularexpressions. regexwriter
62b1e5b4 3 156 system. Text. regularexpressions. RegEx
62b35e10 3 252 system. Text. regularexpressions. regexparser
62b36540 3 312 system. Text. regularexpressions. regexinterpreter
62b360a4 18 432 system. Collections. Generic. List '1 [[system. Text. regularexpressions. regexnode, system]
62b35d30 1 1140 system. Text. regularexpressions. regexcharclass + lowercasemapping []
62b36040 29 1160 system. Text. regularexpressions. regexnode
Total 100 objects
0: 000>! Dumpheap-MT 62b1e5b4
Address Mt size
021db2fc 62b1e5b4 52
021e1390 62b1e5b4 52
021e2248 62b1e5b4 52
Total 0 objects
Statistics:
Mt count totalsize Class Name
62b1e5b4 3 156 system. Text. regularexpressions. RegEx
Total 3 objects
0: 000>! Dumpobj 021db2fc
Name: system. Text. regularexpressions. RegEx
Methodtable: 62b1e5b4
Eeclass: 6295bb8c
Size: 52 (0x34) bytes
File: C: \ WINDOWS \ microsoft. Net \ Assembly \ gac_msil \ System \ v4.0 _ 4.0.0.0 _ b77a5c561934e089 \ System. dll
Fields:
MT field offset type vt attr Value Name
6356f9ac 4000001 4 system. String 0 instance 021db210 Pattern
62b3489c 4000002 8... egexrunnerfactory 0 instance 00000000 Factory
62b2dd68 4000003 24 system. int32 1 instance 0 roptions
6357537c 4000004 c... ections. hashtable 0 instance 00000000 caps
6357537c 4000005 10... ections. hashtable 0 instance 021e0344 capnames
63526c28 4000006 14 system. object [] 0 instance 021e0b70 capslist
63572978 4000007 28 system. int32 1 instance 2 capsize
62b35c0c 4000008 18... xclusivereference 0 instance 021e135c runnerref
62b35c48 4000009 1C... S. sharedreference 0 instance 021e1370 replref
62b36284 400000a 20... essions. regexcode 0 instance 021e131c code
6357662c 400000b 2C system. boolean 1 instance 1 refsinitialized
62b35da8 400000c 4... deentry, system] 0 static 021db8a0 livecode
63572978 400000d 864 system. int32 1 static 15 cachesize
0: 000>! Dumpobj 021db210
Name: system. String
Methodtable: 6356f9ac
Eeclass: 632a8bb0
Size: 50 (0x32) bytes
File: C: \ WINDOWS \ microsoft. Net \ Assembly \ gac_32 \ mscorlib \ v4.0 _ 4.0.0.0 _ b77a5c561934e089 \ mscorlib. dll
String :(? <URL> href = ". +? ")
Fields:
MT field offset type vt attr Value Name
63572978 40000ed 4 system. int32 1 instance 18 m_stringlength
63571dc8 40000ee 8 system. Char 1 instance 28 m_firstchar
6356f9ac 40000ef 8 system. String 0 shared static empty
> Domain: Value 00665b58: 021d1228 <

-----------------------------

Command remarks:

0: 004>! Threads # list all managed threads

0: 004> ~ 0 s # Go to 0 hosting process (~ 0 s), where 4 in 0: 004 indicates that the current thread ID is 4

0: 000>! Dumpheap-type RegEx # use! Run dumpheap-type to view the RegEx method table.

! Dumpheap-MT 62b1e5b4 # view the object associated with the method table

! Dumpobj 021db2fc # view the RegEx object content

! Dumpobj 021db210 # Because string is a reference type, value displays its reference value. view the content of this reference object (string) again.