$ERR.HEL: Difference between revisions

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Move to REXX library routines category

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Revision as of 03:05, 31 January 2013 (view source) rosettacode>Gerard Schildberger (added this page which is HELp for the $ERR.REX (REXX) program. -- ~~~~)		Latest revision as of 23:58, 6 September 2017 (view source) Thundergnat (talk \| contribs) (Move to REXX library routines category)
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Line 1: This   '''$ERR.HEL'''   page is the contents of the (help) information displayed when the   '''$ERR.REX'''   (REXX) program <br>invokes the   '''$H.REX'''   program to display the   '''help'''   documentation for the   '''$ERR.REX'''   program. <pre> The $ERR command is used to display an error message (or messages) from a Line 15 ⟶ 18: The format of the $ERR command is: ╔═════════════════════════════════════════════════════════════════════════════╗ ╔══════════════════════════════════════════════════════════════════════════════╗ ║ ║ ║ $ERR ~~errnum~~errNum EXECname {xxx yyy zzz} {..F=fff} ║ ║ , ║ ║ ? ║ ║ ?AUTHOR ║ ║ ?FLOW ║ ║ ?SAMPLES ║ ║ ║ ╚═════════════════════════════════════════════════════════════════════════════╝ ╚══════════════════════════════════════════════════════════════════════════════╝ ───where: ? shows this help file (press ESC to quit when viewing). ?AUTHOR shows the author of this program. Line 34 ⟶ 37: ?FLOW shows the external execution flow of this program. ?SAMPLES shows some sample uses (press ESC to quit when viewing). ~~errnum~~errNum is the number of the error message(s) (numbered from 1400──►1499), or 14.1 (which indicates that the REXX program has been HALTed). 0 exits $ERR. ' EXECname is the name of the invoking EXEC, and if not a comma, it's shown in in the last error message (see above). xxx yyy zzz are optional arguments that the error message text(s) may require. Line 51 ⟶ 54: The return code is set to the last two digits of the ~~errnum~~errNum, except for error 1468, which uses the ~~retcode~~return code (error code) from the 3rd ~~argment~~argument which ~~is an~~ is an code code ~~recieved~~received from another command that failed. Another special case is error 14.1 which signifies that the REXX program has Line 60 ⟶ 63: Ω </pre> [[Category:REXX library routines]]