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  Help Page - wen

( 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 wen Purpose Editor - Word enumerator or counter Aliases wordenumerator, wordenum, wen, wc Syntax wen [ <options> ] <input_string> Options -e Count empty words. Without this option, empty lines are not considered. -c Case insensitive. Case will be ignored when considering separator characters. Arguments <input_string> The input string on which this command will operate. It can be specified as a str constant or str variable or an expression resulting in a str value. If a str constant is used, we highly recommend using double quotes around it, such as "John Doe". Without the double quotes, the spaces in the input string will produce errors. Stream Input Stream input is ignored. Stream Output The number of words found are written here. Stream Error Any errors are listed here. Description The command enumerates (or counts) words in the <input_string> and writes the count to the stream output or redirected output target. The following system variable plays an important role. $wsep Word separator This variable is used to identify, number, and extract distinct words. See the 'systemvar' help topic for its description. You can change its value to highly refine your search procedure. We highly recommend that, if you change any system variable's value, you restore it after the search is complete, as many system variables are often used by more than one command. The command CAN ALSO BE USED WITH FILES. Simply read in the contents of the file using the repro command into a str variable, then use that str variable as <input_string>. Finally, write the thus modified str variable back to the file. Restrictions None. Valid Examples Assume that you want to count words in a file myfile.js. var str content repro "myfile.js" >$content wen -e $content The above code will produce the number of all words (including empty words) in file myfile.js. To count just the non-empty lines, do NOT use the -e option, as follows. wen $content Invalid Examples wen "myfile.js" Will produce 1. That's because myfile.js will be taken verbatim as <input_string>, and there is only one word in that string. wen { repro "myfile.js" } Will also produce erroneous results. The inline command { repro "myfile.js" } will execute and bring out its output as part of the command line for wen. The wen comand will then consider the first word of the output as <input_string>. So, if the first word of myfile.js is empty, since we did not specify -e option, the output of the wen command will be 0. If the first word of myfile.js is not an empty word, the output of the wen command will be 1. To correctly count the number of words in myfile.js, use the code listed above under Valid Examples. See Also systemvar var echo escape wex win wap wal sen len chen

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