zOs/REXX.O13/CDT

/* REXX *************************************************************

    this editmacro replaces all #dt# by the current date time

**********************************************************************/
call adrEdit('macro (args)')
say 'macro args' args
tst = time('N')
tst = 'D'date('j')'.T'left(tst,2)substr(tst, 4, 2)right(tst,2)
say 'timestamp' tst
call adrEdit "c '#dt#' '"tst"' all"
exit 0

/************** member copy adr **************************************/
/**********************************************************************
    dsn*: manipulate dataSetNames
        dsn2Jcl:     convert from tso to JCL format
        dsnFromJcl:  convert from jcl to TSO format
        dsnGetLLQ:   get the llq from a dsn
        dsnGetMbr:   get the Member name from a dsn
        dsnApp:      cleanup and append dsn parts (preserve apos ...)
        dsnSetMbr:   set a Member name or remove it if mbr = ''
***********************************************************************/
 say dsnApp("a.b c(d e) f' ))) h")
 say dsnApp("'a.b c(d e) f' ))) h")
 call help
 call errHelp(test errHelp)
dsn2jcl: procedure
parse arg dsn .
    if left(dsn,1) = "'" then
        return strip(dsn, 'b', "'")
    else if sysvar('SYSPREF') = '' then
        return dsn
    else
        return sysvar('SYSPREF')'.'dsn
endProcedure dsn2Jcl

dsnFromJcl: procedure
parse arg dsn .
    return "'"dsn"'"
endProcedure dsnFromJcl

dsnApp: procedure
parse arg parts
    dsn = ''
    do wx=1 by 1
        w = word(parts, wx)
        if w = '' then
            leave
        do while w <> ''
            if pos(right(w, 1), "') ") <= 0 then
                leave
            w = left(w, length(w)-1)
            end
        dsn = dsn || w
        end
    if pos('(', dsn) > 0 then
        dsn = dsn')'
    if left(dsn,1) = "'" then
        return dsn"'"
    else
        return dsn
endProcedure dsnApp

dsnSetMbr: procedure
parse arg dsn, mbr
     mbr = strip(mbr)
     bx = pos('(', dsn)
     if mbr = '' then do
         if bx < 1 then
             return dsn
         else if left(dsn, 1) = "'" then
             return left(dsn,bx-1)"'"
         else
             return left(dsn,bx-1)
         end
     else do
         if bx < 1 then
             return dsnApp(dsn '('mbr)
         else
             return dsnApp(left(dsn, bx)  mbr)
         end
endProcedure dsnSetMbr

dsnGetMbr: procedure
parse arg dsn
     lx = pos('(', dsn)
     rx = pos(')', dsn, lx+1)
     if lx < 1 then
         return ''
     else if lx < rx then
         return substr(dsn, lx+1, rx-lx-1)
     else
         return strip(substr(dsn,lx+1), 't', "'")
endProcedure dsnGetMbr

dsnGetLLQ: procedure
parse arg dsn
     rx = pos('(', dsn) - 1
     if rx < 0 then
         rx = length(dsn)
     lx = lastPos('.', dsn, rx)
     return strip(substr(dsn, lx+1, rx-lx), 'b', "'")
endProcedure dsnGetLLQ

/**********************************************************************
    lmd: catalog read
    call sequence: lmdBegin, lmdNext*, lmdEnd
        mit lmd service (mit save in file und read,
                         weil list zu langsam und listcat abstürzt)
        1. arg (grp)     als group dataset für lmd save
                         und dd name für file read
***********************************************************************/
lmdTest: procedure
parse arg lev
    say showTime() 'lmdTest' lev
    call lmdBegin 'test', lev
    say showTime() 'lmdTest after begin' lev
    z = 0
    do while lmdNext('test', st.)
        do y=1 to st.0
            z=z+1
            say z word(st.y, 1)
            end
        end
    call lmdEnd 'test'
    say showTime() 'lmdTest' z 'files in' lev
return /* readTest */

lmdBegin: procedure
    parse arg grp, lev
    call adrIsp 'lmdinit listid(lmdId) level('lev')'
    call adrIsp 'lmdlist listid(&lmdId) option(save) group('grp')'
    call adrIsp 'lmdfree listid(&lmdId)'
    say showTime() 'lmdlist save' grp lev
    call readBegin grp, grp'.datasets'
return /* end lmdBegin */

lmdNext:
    parse arg lvGrp, lvSt
return readNext(lvGrp, lvSt)

lmdEnd: procedure
    parse arg grp
    call readEnd grp
return /* end lmdEnd */

/**********************************************************************
    member list of a pds:
        call sequence x=lmmBegin(dsn) lmmNext(x) * lmmEnd(x)
***********************************************************************/
lmmTest: procedure
parse arg dsn
    if dsn = '' then
        dsn = 'wk.pli(*)'
    say 'lmmTest for dsn' dsn
    id = lmmBegin(dsn)
    do ix=1 by 1
        m = lmmNext(id)
        if m = '' then
            leave
        say ix m
        end
    call lmmEnd id
    say  'lmmTest end' (ix-1) 'members in' dsn
    return
endProcedure lmmTest

lmmBegin: procedure
parse arg dsn
    mbr = dsnGetMbr(dsn)
    pds = dsnSetMbr(dsn, )
    call adrIsp "LMINIT DATAID(lmmId) DATASET("pds") ENQ(SHRW)"
    call adrIsp "LMOPEN DATAID("lmmId") OPTION(INPUT) "
    res = lmmId
    if mbr <> '' then
        res = res 'pattern('mbr')'
    say 'lmmBegin returning' res
    return res
end lmmBegin

lmmEnd: procedure
parse arg lmmId opt
    if adrIspRc("LMMLIST DATAID("lmmId") option(free)") <> 0 then
        if rc <> 8 then
            call err "lmmEnd" id lmmId "rc" rc "for lmmList free"
    call adrIsp "LMCLOSE DATAID("lmmId")"
    call adrIsp "LMFREE DATAID("lmmId")"
    return
endProcedure lmmEnd

lmmNext: procedure
parse arg lmmId opt
    gmRc = adrIspRc("LMMLIST DATAID("lmmid")" ,
               "OPTION(LIST) MEMBER(Mbr)" opt)
    if gmRc = 0 then
        return mbr
    else if gmRc = 8 | gmRC = 4 then
        return ''
    else
        call err 'lmmList rc' gmRc
endProcedure lmmNext

/**********************************************************************
    read: read a file
    call sequence: readBegin, readNext*, readEnd
        1. arg (dd)     dd name, wird alloziert in begin und free in end
        readNext liest 100 records in übergebenen stem,
            returns false at eof
***********************************************************************/
readTest: procedure
parse arg dsn
    say showTime() 'readTest' dsn
    call readBegin 'ddEins', dsn
    z = 0
    do while readNext('ddEins', st.)
        do y=1 to st.0
            z=z+1
            say z strip(st.y, 't')
            end
        end
    call readEnd 'ddEins'
    say showTime() 'readTest' z 'records in' dsn
return /* readTest */

readBegin: procedure
    parse arg dd, dsn
    call adrTso 'alloc dd('dd') shr reuse dsn('dsn')'
return /* end readBegin */

readNext:
    parse arg lv_DD, lv_St
    if adrTsoRc('execio 100 diskr' lv_DD '(stem' lv_St')') = 0 then
        return 1
    else if rc = 2 then
        return (value(lv_St'0') > 0)
    else
        call err 'execio 100 diskr' lv_DD 'rc' rc
return /* end readNext */

readEnd: procedure
    parse arg dd
    call adrTso 'execio 0 diskr' dd '(finis)'
    call adrTso 'free  dd('dd')'
return /* end readEnd */


/**********************************************************************
    writeApp: append lines to a file
        ggDsn:  dsn to append lines
        ggStem  stem containing line (with dot|)
        ggNr    number of lines, if empty <stem>.0
***********************************************************************/
writeApp:
parse arg ggDsn, ggStem, ggNr
    if ggNr = '' then
        ggNr = value(ggStem'0')
    if pos('(', ggDsn) < 1 then do  /* sequential ds, use disp=mod */
        call adrTso 'alloc mod reuse dd(ddApp) dsn('ggDsn')'
        end
    else do                       /* pds: read and rewrite */
        call adrTso 'alloc shr reuse dd(ddApp) dsn('ggDsn')'
        if sysdsn(ggDsn) = 'OK' then do
            call adrTso 'execio * diskr ddApp (stem ggL. finis)'
            call adrTso 'execio' ggL.0 'diskw ddApp (stem ggL.)'
            end
        end
    call adrTso 'execio' ggNr 'diskw ddApp (stem' ggStem 'finis)'
    call adrTso 'free dd(ddApp)'
return
endProcedure writeApp

log: procedure
parse arg logLine
    l.1 = date('s') time() logLine
    call writeApp 'wk.out(ll)', l., 1
    return
endProcedure log
/**********************************************************************
    variable Expansion: replace variable by their value
***********************************************************************/

varExpandTest: procedure
    m.v.eins ='valEins'
    m.v.zwei ='valZwei'
    m.l.1='zeile eins geht unverändert'
    m.l.2='$EINS auf zeile ${ZWEI} und \$EINS'
    m.l.3='...$EINS?auf zeile ${ZWEI}und $EINS'
    m.l.4='...$EINS,uf zeile ${ZWEI}und $EINS$$'
    m.l.5='${EINS}$ZWEI$EINS${ZWEI}'
    m.l.0=5
    call varExpand l, r, v
    do y=1 to m.r.0
        say 'old' y m.l.y
        say 'new' y m.r.y
        end
    return
endProcedure varExpandTest

varExpand: procedure expose m.
parse arg old, new, var
varChars = ,
    '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
do lx=1 to m.old.0
    cx = 1
    res = ''
    do forever
        dx = pos('$', m.old.lx, cx)
        if dx < cx then do
            m.new.lx = res || strip(substr(m.old.lx, cx), 't')
            leave
            end

        res = res || substr(m.old.lx, cx, dx - cx)
        if dx >= length(m.old.lx) then
            call err '$ at end line m.'old'.'lx'='m.old.lx
        if substr(m.old.lx, dx+1, 1) = '$' then do
            res = res || '$'
            cx = dx + 2
            iterate
            end
        if substr(m.old.lx, dx+1, 1) = '{' then do
            cx = pos('}', m.old.lx, dx+1)
            if cx <= dx then
                call err 'ending } missing line m.'old'.'lx'='m.old.lx
            na = substr(m.old.lx, dx+2, cx-dx-2)
            cx = cx + 1
            end
        else do
            cx = verify(m.old.lx, varChars, 'N', dx+1);
            if cx <= dx then
                cx = length(m.old.lx) + 1
            na = substr(m.old.lx, dx+1, cx-dx-1)
            end
        if symbol('m.v.na') = 'VAR' then
            res = res || m.var.na
        else
             call err 'var' na 'not defined line m.'old'.'lx'='m.old.lx
        end
    m.new.0 = m.old.0
    end
return /* var expand */

/**********************************************************************
    adrSql: execute sql thru the dsnRexx interface
***********************************************************************/

adrSql: /* no procedure, to keep variables sql... */
    parse arg ggStmt, ggNo
    if ggNo <> '1' then
        ggStmt = 'execSql' ggStmt
    address dsnRexx ggStmt
    if rc = 0 then
        nop  /* say "sql ok:" ggStmt */
    else if rc > 0 then
        say "sql warn rc" rc sqlmsg()':' ggStmt
    else
        call err "sql rc" rc sqlmsg()':' ggStmt
return
endSubroutine adrSql

adrSqlConnect: procedure
parse arg sys
    if adrTSORc("SUBCOM DSNREXX") <> 0 then do
       sRC = RXSUBCOM('ADD','DSNREXX','DSNREXX') /* ADD HOST CMD ENV  */
       say 'subcom' sRc
       end
    call adrSql "connect" sys, 1
    return
endProcedure adrSqlConnect

adrSqlDisconnect: procedure
    call adrSql "disconnect ", 1
    return
endProcedure adrSqlDisconnect

sqlMsg: /* no procedure, to keep variables sql... */
    if sqlCode = 0 then
        return 'ok (sqlCode=0)'
    else
        return 'sqlCode='sqlCode,
            'errMc' strip(translate(sqlerrmc, ',', 'FF'x))
endSubroutine sqlMsg

/**********************************************************************
    adrDsn: send a command to db2 with the TSO dsn command
***********************************************************************/

adrDsn: procedure
parse arg sys, cmd, rcOk
    call adrTso 'alloc dd(sysprint) new reuse'
    push 'END'
    push cmd
    rr = adrTsoRc('DSN SYSTEM('sys')')
    say 'rc' rr 'adrTso DSN SYSTEM('sys') cmd' cmd
    if wordPos(rr, rcOk) < 1 then do
        say 'error rc' rr 'in adrTso DSN SYSTEM('sys') cmd' cmd

        call adrTso 'execio * diskr sysprint (finis stem pr.)'
        say 'sysprint' pr.0 'lines'
        do x=1 to pr.0
            say strip(pr.x, 't')
            end
        call adrTso 'free dd(sysprint) '
        call err 'rc' rr 'in adrTso DSN SYSTEM('sys') cmd' cmd
        end
    call adrTso 'free dd(sysprint)'
    return rr
endProcedure adr Dsn

/**********************************************************************
    adr*: address an environment
        adrTso: fails if rc <> 0
        adrTsoRc: returns rc without failing
***********************************************************************/
adrTsoRc:
    parse arg tsoCmd
    address tso tsoCmd
return rc  /* end adrTsoRc */

adrTso:
    parse arg tsoCmd
    address tso tsoCmd
    if rc <> 0 then
        call err 'adrTso rc' rc 'for' tsoCmd
return /* end adrTso */

adrIspRc:
    parse arg ispCmd
    address ispexec ispCmd
return rc /* end adrIspRc */

adrIsp:
    parse arg ispCmd
    address ispexec ispCmd
    if rc <> 0 then
        call err 'adrIsp rc' rc 'for' ispCmd
return /* end adrIsp */

adrEdit:
    parse arg editCmd, ret
    address isrEdit editCmd
    if rc <> 0 then
        call err 'adr isrEdit rc' rc 'for' editCmd
return /* end adrEdit */

adrEditRc:
    parse arg editCmd
    address isrEdit editCmd
return rc /* end adrEditRc */

err:
    parse arg txt
    parse source s1 s2 s3 .
    say 'fatal error in' s3':' txt
exit 12

errHelp: procedure
parse arg errMsg
    say 'fatal error:' errMsg
    call help
    call err errMsg
endProcedure errHelp

help: procedure
    parse source . . s3 .
    say 'help for rexx' s3
    do lx=1 by 1
        if pos('/*', sourceLine(lx)) > 0 then
            leave
        else if lx > 10 then do
            say 'initial commentblock not found for help'
            return
            end
        end
    do lx=lx+1 by 1
        li = strip(sourceLine(lx), 't', ' ')
        if pos('*/', li) > 0 then
            leave
        say li
        end
    return
endProcedure help

showtime:
parse arg showmsg
return time() sysvar('syscpu') sysvar('syssrv') showmsg