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  Help Page - continue

( Some help pages may not display correctly in html because those help pages may have sample code
in them, part of which may be mis-interpreted as html tags.

All help pages, including this help page, are available in biterScripting with the help command. )




Command continue Purpose Skips the rest of the commands in the inner-most do-done block. Aliases continue, cnt Syntax continue [<options>] [ <code> [ <message>] ] Options -o Write the <message>, if any, to stream output instead of stream error. If a <message> is specified, it is written to stream error without this option. With this option, the <message> is written to stream output instead. Arguments <code> An integer value. This code is called continue code and if specified, is assigned to the system variable $continuecode. This argument can be specified using either a constant, variable, function call, inline command, or an expression consisting of any of these. In all cases, the argument must result in a value of type integer. <message> A string value. This string is written to either stream error or stream output depending on whether option -o is specified. This argument can be specified using either a constant, variable, function call, inline command, or an expression consisting of any of these. In all cases, the argument must result in a value of type string. If a string constant is used, it must be enclosed in double quotes. <message> can be specified only if <code> is specified. Stream Input Ignored. Stream Output If the -o option is specified, and <message> is specified, a message in the following format is written to stream output. continue <code>: <message> Stream Error Any errors encountered are written here. In addition, if the -o option is not specified, and <message> is specified, a message in the following format is written to stream error. continue <code>: <message> Such messages to stream error can be used for tracing execution of a script. Description do...done is a programming construct that allows grouping of commands into what is known as a command block, or a do block, or do-done block. If a continue command is encountered within a do-done block, all the commands within that block after the continue command will skip execution. Execution will resume when the done command is encountered. The following is a simple example. var integer i while ($i <= 10) do set $i=$i+1 if ($i > 5) continue endif echo ($i*$i) done This will print squares of numbers from 1 to 5. When the value of integer variable $i exceeds 5, the echo command will be skipped. It is important to note that the continue command continues only the inner-most do-done block. Also, the continue command does not skip the while loop itself. The while loop keeps executing until the while condition becomes untrue. When a continue command is executed, and <code> is specified, the value of <code> is assigned to the system variable $continuecode. This system variable always contains the <code> from the last executed continue command. If no continue command has executed yet, or if the last executed continue command did not specify <code>, this value is 0. The value of $continuecode can be used later for determining which continue command executed. Restrictions This command is not allowed outside a do-done block. Valid Examples var string list, file lf -n "*.txt" "C:/test" > $list while ($list <> "") do lex "1" $list > $file fdinfo $file > null if ($fctime < "2010") continue endif # Reset file modification time to current time. fdset -m $file done This code lists all text files in directory "C:/test" (if it exists). It then skips ('continues') those files that were created before year "2010". For the remaining files, it resets the file modification time to current time. Invalid Examples Consider the following code. var string list, file lf -n "*.txt" "C:/test" > $list while ($list <> "") do lex "1" $list > $file fdinfo $file > null if ($fctime < "2010") do continue done endif # Reset file modification time to current time. fdset -m $file done This code is similar to the code above, except there is an additional do-done block inside the if command. When the continue command is executed, it only skips the inner do-done block. As a results file modification time of ALL files will be reset to current time. See Also do break exit systemvar

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