::HSBC:: EODPos/[eod]compare.outMMDD select good position line	^.{47}(.{11}) \1.*\n
::HSBC:: Ticket Processor <Ticket> output block	(?#TktProc block)^-+$\n.*? \[---acct--- ---cusip--- \w+ \w+\].*\n(?n(?:(?!\n-).)*)\n-+\n
::HSBC:: Ticket Processor BB Tran No	(?#TktProc BB Tran No)(?<=TRAN\[---acct--- ---cusip--- \d{7}) \d+ (?=\d+\])
::HSBC:: Ticket Processor Received <Ticket>	(?#TktProc Received)Received .*? \[---acct--- ---cusip--- \w+ \w+\]
::HSBC:: Ticket Processor amt/pre_trade_pos/post_trade_pos[nnn]	(?#TktProc positions) [ap](?:mt|re_trade_pos|ost_trade_pos)\[-?\d+\.?\d*\]
C or C++ comments	/(?:\*(?n(?!\*/).)*\*/|/(?:.*\\\n)*.*\n)
DQ or SQ string	(?:"(?:\\"|[^"])*"|'(?:\\'|[^'])*')
DQ string: Probable REGEX (excluding end-DQuotes)	(?<=")(?:\\.|[^\\"])*(?:(?#start parens)\(\?|(?#[repeat after class,group,any])[]).][*+?]|(?#[non-greedy repeat])[*+]\?|(?#[char-class])\[\^?(?:\\.|[^\\"])+?\]|(?#pipe)\||(?#double backslash)\\\\[1-9&dDlLsSwWyYuUabefnrtv])(?:\\.|[^\\"])*(?=")
DQ string: Probable REGEX (excluding end-DQuotes; no comments)	(?<=")(?:\\.|[^\\"])*(?:\(\?|[]).][*+?]|[*+]\?|\[\^?(?:\\.|[^\\"])+?\]|\||\\\\[1-9&dDlLsSwWyYuUabefnrtv])(?:\\.|[^\\"])*(?=")
DQ string: Start DQ for a valid string	(?="(?:\\.|[^\\"])*")"
DQ string: Unterminated DQ string	"(\\.|[^\\"])*$
DQ string: Valid DQ string	"(?:\\.|[^\\"])*"
Find next C++ non-commented close-brace "}"	(?n(?:/\*(?:(?!\*/).)*\*/|//[^\n]*\n|[^}]))*\}
Find next C++ non-commented open-brace "{"	(?n(?:/\*(?:(?!\*/).)*\*/|//[^\n]*\n|[^{]))*\{
Find single-block C/C++ expression (content in \1)	(?n\s*\{\s*((?:(?!\s*\})[^{])*)\s*\})
Find single-block C/C++ expression (content in \1) old	(?n\s*\{\s*([^{}\s](?:[^{](?!\s*\}))*[^{])\s*\})
Find virtual C++ member function declaration	virtual (?n[^;]*\)(?:\s*const)?)
Find virtual pure C++ member function declaration	virtual (?n[^;]*\)(?:\s*const)?)(?=(?n\s*=\s*0))
Valid NEdit double-quoted string regex	"(?:[^\\"]|\\(?:0[0-3][0-7]{1,2}|0[0-7]{1,2}|[xX][0-9a-fA-F]{1,2}|["?\\abefnrtv]))*"
match upto non-commented/stringed C/C++ class or struct	(?n(?:/\*(?:(?!\*/).)*\*/|"(?:(?:(?<!\\)\\"|[^"]))*"|//[^\n]*\n|(?!<struct>|<class>).)*(?<!friend )<(?:struct|class)>)
test RE for class/struct spec	(?n(?:/\*(?:(?!\*/).)*\*/|//[^\n]*\n|"(?:(?:(?<!\\)\\"|[^"]))*"|(?!<struct>|<class>).|(?:<friend\s+(?:struct|class)>).|)*(?<!friend )<(?:struct|class)>)