/* REXX VSBROWSE Browse a VSAM dataset using REXXTOOLS. Use '(routine name) ?' for HELP-text. Written by G052811 Chris Lewis 19970122 Impact Analysis . SYSEXEC LISTCSUM . SYSEXEC TRAPOUT Modification History 20211127 fxc RXSKLY2K; upgrade REXXSKEL from v.970113 to v.20210402; DECOMM; 20230217 fxc corrected handling of input DSN; 20230407 fxc adjust HELP 20230806 fxc chg SYSPROC to SYSEXEC in Impact Analysis; 20240308 fxc chg dollar-sign to @ everywhere; 20240415 fxc DUMP_QUEUE quiet; */ arg argline address TSO /* REXXSKEL ver.20210402 */ arg parms "((" opts signal on syntax signal on novalue call TOOLKIT_INIT /* conventional start-up -*/ rc = Trace("O"); rc = Trace(tv) info = parms /* to enable parsing */ call A_INIT /* -*/ if \sw.0error_found then, call B_VSAM /* -*/ if sw.0error_found then push rcx xef zerrsm xef zerrlm /* Global Conformed Line */ if \sw.0nested then call DUMP_QUEUE 'quiet' /* -*/ exit /*@ VSBROWSE */ /* . ----------------------------------------------------------------- */ A_INIT: /*@ */ if branch then call BRANCH address TSO parse var info dsn recs . /* dsn must be fully qualified*/ if dsn = "" then do rcx = 20 ; sw.0error_found = 1 say "DSN Missing, First token must be a dataset name." return end /* dsn = "" */ else, if Left(dsn,1) = "'" then, /* quoted */ dsn = Strip( dsn,,"'" ) /* unquoted */ else, dsn = Userid()"."dsn /* fully-qualified */ parse value recs "99999" with recs . parse value "0 0 0 0" with ctr vsam. maxrecl . parse value 20 'ef'X with, rcx xef zerrsm zerrlm rc = LISTDSI("'"dsn"'") /* find DSORG */ if rc > 4 then do say "LISTDSI ended RC="rc, "Rsn="sysreason "Msg="sysmsglvl1 sysmsglvl2 sw.0Error_Found = 1 return end /* sysdsorg */ if sysdsorg <> "VS" then do rcx = 12 ; sw.0error_found = 1 say "SYSDSORG MUST be VS. Dataset must be a VSAM." sw.0Error_Found = 1 return end /* sysdsorg */ /* Use LISTCSUM w/STACK to recover DATAATTRIBUTES. DATAATTRIBUTES will contain the word 'INDEXED' for a KSDS or 'LINEAR' for an ESDS. */ "NEWSTACK" "LISTCSUM '"dsn"' STACK" org = "?" do queued() pull line if Left( line,14 ) = "DATAATTRIBUTES" then, if WordPos( "INDEXED",line ) > 0 then org = "KSDS"; else, if WordPos( "LINEAR" ,line ) > 0 then org = "RRDS"; else, org = "ESDS" if org <> "?" then leave end /* queued */ "DELSTACK" ddname = "@VS" return /*@ A_INIT */ /* Open the VSAM. Skip sequentially through file and load each record into an array. Process until the end or max records (if specified). Browse the array and close VSAM. . ----------------------------------------------------------------- */ B_VSAM: /*@ */ if branch then call BRANCH address TSO address ISPEXEC "CONTROL ERRORS RETURN" call BA_VS_OPEN /* -*/ "NEWSTACK" do forever rxv_rc = RXVSAM( "READNEXT ","@VS",,"RECORD" ) if rxv_rc > 0 then do if rxv_rc > 4 then, say "RC="rxv_rc ":" rxvsam_returnmsg ":" rxvsam_vsamerrormsg leave end ctr = ctr + 1 if ctr = recs then leave maxrecl = Max( Length(record) , maxrecl ) queue record end if queued() = 0 then do sw.0Error_found = 1 say "'dsn' is empty." end if \sw.0error_found then, call BD_VS_DISPL /* -*/ "DELSTACK" rxv_rc = RXVSAM( "CLOSE ","@VS" ) "FREE F("ddname")" return /*@ B_VSAM */ /* . ----------------------------------------------------------------- */ BA_VS_OPEN: /*@ */ if branch then call BRANCH address TSO "ALLOC F("ddname") DA('"dsn"') SHR REU" if rc <> 0 then do rcx = rc ; sw.0error_found = 1 say "Unable to alloc F("ddname") DA('"dsn"') SHR REU. RC="rc return end /* rc <> 0 */ rc = RXVSAM('OPENINPUT ','@VS', org ) if rc <> 0 then do rcx = rc ; sw.0error_found = 1 zerrsm = "OPEN Error" zerrlm = "Unable to OPEN VSAM. RC="rc "Reason="reason return end return /*@ BA_VS_OPEN */ /* . ----------------------------------------------------------------- */ BD_VS_DISPL: /*@ */ if branch then call BRANCH address TSO "ALLOC FI( @TMP ) NEW REU UNIT( SYSDA ) RECFM( V B ) ", "LRECL( "maxrecl+4" )", "BLKSIZE( 22000 ) SPACE( 5 5 ) TRACKS" "EXECIO" queued() "DISKW @TMP (FINIS " address ISPEXEC "LMINIT DATAID(DAID) DDNAME( @TMP ) " "VIEW DATAID("daid") PROFILE(DEFAULT)" return /*@ BD_VS_DISPL */ /* . ----------------------------------------------------------------- */ LOCAL_PREINIT: /*@ customize opts */ address TSO return /*@ LOCAL_PREINIT */ /* subroutines below LOCAL_PREINIT are not selected by SHOWFLOW */ /* . ----------------------------------------------------------------- */ HELP: /*@ */ address TSO;"CLEAR" if helpmsg <> "" then say helpmsg; say "" ex_nam = Left(exec_name,8) /* predictable size */ say " "ex_nam" browses a VSAM file using RXVSAM. " say " " say " Syntax: "ex_nam" dsn " say " maxrecs " say " " say " dsn names the input VSAM file. " say " " say " maxrecs declares a limit to the number of records " say " to be processed. " say " " "NEWSTACK"; pull ; "CLEAR" ; "DELSTACK" say " Debugging tools provided include: " say " " say " MONITOR: displays key information throughout processing. " say " " say " NOUPDT: by-pass all update logic. " say " " say " BRANCH: show all paragraph entries. " say " " say " TRACE tv: will use value following TRACE to place the " say " execution in REXX TRACE Mode. " say " " say " " say " Debugging tools can be accessed in the following manner: " say " " say " TSO "ex_nam" parameters (( debug-options " say " " say " For example: " say " " say " TSO "ex_nam" (( MONITOR TRACE ?R " if sysvar("SYSISPF") = "ACTIVE" then, address ISPEXEC "CONTROL DISPLAY REFRESH" exit /*@ HELP */ /* . ----------------------------------------------------------------- */ BRANCH: Procedure expose, /*@ */ sigl exec_name rc = trace("O") /* we do not want to see this */ arg brparm . origin = sigl /* where was I called from ? */ do currln = origin to 1 by -1 /* inch backward to label */ if Right(Word(Sourceline(currln),1),1) = ":" then do parse value sourceline(currln) with pgfname ":" . /* Label */ leave ; end /* name */ end /* currln */ select when brparm = "NAME" then return(pgfname) /* Return full name */ when brparm = "ID" then do /* wants the prefix */ parse var pgfname pgfpref "_" . /* get the prefix */ return(pgfpref) end /* brparm = "ID" */ otherwise say left(sigl,6) left(pgfname,40) exec_name "Time:" time("L") end /* select */ return /*@ BRANCH */ /* . ----------------------------------------------------------------- */ DUMP_QUEUE: /*@ Take whatever is in stack */ rc = trace("O") /* and write to the screen */ address TSO arg mode . "QSTACK" /* how many stacks? */ stk2dump = rc - tk_init_stacks /* remaining stacks */ if stk2dump = 0 & queued() = 0 then return if mode <> "QUIET" then, say "Total Stacks" rc , /* rc = #of stacks */ " Begin Stacks" tk_init_stacks , /* Stacks present at start */ " Excess Stacks to dump" stk2dump do dd = rc to tk_init_stacks by -1 /* empty each one. */ if mode <> "QUIET" then, say "Processing Stack #" dd " Total Lines:" queued() do queued();parse pull line;say line;end /* pump to the screen */ "DELSTACK" /* remove stack */ end /* dd = 1 to rc */ return /*@ DUMP_QUEUE */ /* Handle CLIST-form keywords added 20020513 . ----------------------------------------------------------------- */ CLKWD: Procedure expose info /*@ hide all except info */ arg kw kw = kw"(" /* form is 'KEY(DATA)' */ kw_pos = Pos(kw,info) /* find where it is, maybe */ if kw_pos = 0 then return "" /* send back a null, not found*/ rtpt = Pos(") ",info" ",kw_pos) /* locate end-paren */ slug = Substr(info,kw_pos,rtpt-kw_pos+1) /* isolate */ info = Delstr(info,kw_pos,rtpt-kw_pos+1) /* excise */ parse var slug (kw) slug /* drop kw */ slug = Reverse(Substr(Reverse(Strip(slug)),2)) return slug /*@CLKWD */ /* Handle multi-word keys 20020513 . ----------------------------------------------------------------- */ KEYWD: Procedure expose info /*@ hide all vars, except info*/ arg kw kw_pos = wordpos(kw,info) /* find where it is, maybe */ if kw_pos = 0 then return "" /* send back a null, not found*/ kw_val = word(info,kw_pos+Words(kw))/* get the next word */ info = Delword(info,kw_pos,2) /* remove both */ return kw_val /*@ KEYWD */ /* . ----------------------------------------------------------------- */ KEYPHRS: Procedure expose, /*@ */ info helpmsg exec_name /* except these three */ arg kp wp = wordpos(kp,info) /* where is it? */ if wp = 0 then return "" /* not found */ front = subword(info,1,wp-1) /* everything before kp */ back = subword(info,wp+1) /* everything after kp */ parse var back dlm back /* 1st token must be 2 bytes */ if length(dlm) <> 2 then /* Must be two bytes */ helpmsg = helpmsg, "Invalid length for delimiter("dlm") with KEYPHRS("kp")", info if wordpos(dlm,back) = 0 then /* search for ending delimiter*/ helpmsg = helpmsg, "No matching second delimiter("dlm") with KEYPHRS("kp")", info if helpmsg <> "" then call HELP /* Something is wrong */ parse var back kpval (dlm) back /* get everything b/w delim */ info = front back /* restore remainder */ return Strip(kpval) /*@ KEYPHRS */ /* . ----------------------------------------------------------------- */ NOVALUE: /*@ */ say exec_name "raised NOVALUE at line" sigl say " " say "The referenced variable is" condition("D") say " " zsigl = sigl signal SHOW_SOURCE /*@ NOVALUE */ /* . ----------------------------------------------------------------- */ SHOW_SOURCE: /*@ */ call DUMP_QUEUE /* Spill contents of stacks -*/ if sourceline() <> "0" then /* to screen */ say sourceline(zsigl) rc = trace("?R") nop exit /*@ SHOW_SOURCE */ /* . ----------------------------------------------------------------- */ SS: Procedure /*@ Show Source */ arg ssbeg ssend . if ssend = "" then ssend = 10 if \datatype(ssbeg,"W") | \datatype(ssend,"W") then return ssend = ssbeg + ssend do ssii = ssbeg to ssend ; say Strip(sourceline(ssii),'T') ; end return /*@ SS */ /* . ----------------------------------------------------------------- */ SWITCH: Procedure expose info /*@ */ arg kw sw_val = Wordpos(kw,info) > 0 /* exists = 1; not found = 0 */ if sw_val then /* exists */ info = Delword(info,Wordpos(kw,info),1) /* remove it */ return sw_val /*@ SWITCH */ /* . ----------------------------------------------------------------- */ SYNTAX: /*@ */ errormsg = exec_name "encountered REXX error" rc "in line" sigl":", errortext(rc) say errormsg zsigl = sigl signal SHOW_SOURCE /*@ SYNTAX */ /* Can call TRAPOUT. . ----------------------------------------------------------------- */ TOOLKIT_INIT: /*@ */ address TSO info = Strip(opts,"T",")") /* clip trailing paren */ parse source sys_id how_invokt exec_name DD_nm DS_nm, as_invokt cmd_env addr_spc usr_tokn parse value "" with tv helpmsg . parse value 0 "ISR00000 YES" "Error-Press PF1" with, sw. zerrhm zerralrm zerrsm if SWITCH("TRAPOUT") then do "TRAPOUT" exec_name parms "(( TRACE R" info exit end /* trapout */ sw.0nested = sysvar("SYSNEST") = "YES" sw.0batch = sysvar("SYSENV") = "BACK" sw.0inispf = sysvar("SYSISPF") = "ACTIVE" if Word(parms,1) = "?" then call HELP /* I won't be back */ "QSTACK" ; tk_init_stacks = rc /* How many stacks? */ parse value SWITCH("BRANCH") SWITCH("MONITOR") SWITCH("NOUPDT") with, branch monitor noupdt . parse value mvsvar("SYSNAME") sysvar("SYSNODE") with, #tk_cpu node . parse value KEYWD("TRACE") "N" with tv . tk_globalvars = "exec_name tv helpmsg sw. zerrhm zerralrm ", "zerrsm zerrlm tk_init_stacks branch monitor ", "noupdt" call LOCAL_PREINIT /* for more opts -*/ return /*@ TOOLKIT_INIT */