On Tue, 23 Jul 2019 08:27:38 -0400, Sri h Kolusu wrote: > >The Announce letter does not o into the details of the line item. The >DFSORT Application Programming Guide has all the details that can answer >your questions. > Which Susan has made available just in time: z/OS Version 2 Release 4 DFSORT Application Programming Guide IBM [part number obscure]
> ... Either way two versions of regular expressions are supported: > >• Basic Regular expressions (BRE) >• Extended Regular expressions (ERE) > There seems to be no keyword differentiating these. Does that leave any ambiguity. A Regular expression is a pattern which specifies a string of characters used to match certain strings. By default, DFSORT treats regular expressions as case-insensitive. ... Using the word "default" suggests that the programmer can choose the case-sensitive alternative. How might one do this? The "NULL-terminated string" discussion seems to be an internal which does not concern and might only confuse the programmer. However, if the programmer is so rash as to introduce a NULL in a regex in SYSIN using a hex editor, might there be unexpected results? Should there be a caution concerning this? Should DFSORT scan and issue a warning? Regular expressions are probably described at length in other z/OS publication(s). It might be better to provide a cross reference than to repeat the syntax description here. Thanks, gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN