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  Help Page - sin

( 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 sin Purpose Editor - String inserter Aliases stringinserter, strins, sin Syntax sin [ <options> ] " [<start_bounder>] ^ <search_string> ^ [<n>] [<end_bounder>] " <insert_string> <input_string> Options -p Preserve the input string. Without this option, the <insert_string> is inserted into <input_string>. With this option, the <input_string> is left unchanged. -c Case insensitive. Case will be ignored when searching for the <search_string> in <input_string>. This option is very useful when parsing links, emails, tags and commands in web pages. For example, with this option, if the search string is "href=", all the following string instances will be returned - "HREF=", "HRef=", "href=". Without this option, case is considered during the string search. In either case, the resulting string and <input_string> are returned in their original case. -r <search_string> is a regular expression. See help page on RE for syntax of regular expressions. 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 or erroneous output. In case of a str constant or a str expression, the -p option is assumed. <n> The instance number. The input string will be searched for this instance of the target. Instances are counted from 1. If <n> is not specified, the first instance will be returned. If specified, <n> must be either a number higher than 0 or the letter l (which indicates the last instance). <search_string> The string to search for. The input string will be searched for this search string. The <search_string> needs to be enclosed in carets (^). The symbol is also known as the "Cut here" symbol. If the <serach_string> itself contains a caret (^), an opening square bracket ([), a closing square bracket (]) or a double quote ("), escape them with a backslash, as \^, \[, \] and \". See help page on escape for more details. If the -r option is specified, the <search_string> is assumed to be a regular expression. <start_bounder> <end_bounder> This argument can either be absent, the character [ or the character ]. The <start_bounder> appears before the first cut-here or caret (^). The <end_bounder> appears after the <n>. We will now explain the role of these bounders with an example. We will assume that the target string is "email:". "^email:^5" Target instance to operate on is only the fifth instance of string "email:". "^email:^5[" Target instance to operate on is everything after but excluding the fifth instance of string "email:". "^email:^5]" Target instance to operate on is everything upto and including the fifth instance of string "email:". "[^email:^5" Target instance to operate on is everything beginning with and including the fifth instance of string "email:". "[^email:^5[" This combination is INVALID. "[^email:^5]" Target instance to operate on is only the fifth instance of string "email:". This is same as "^email:^5". "]^email:^5" Target instance to operate on is everything upto but excluding the fifth instance of string "email:". "]^email:^5[" Target instance to operate on is everything outside but excluding the fifth instance of string "email:". "]^email:^5]" This combination is INVALID. In all VALID cases, the <insert_string> is inserted BEFORE the target instance. <insert_string> The string to insert before the target instance. Stream Input Stream input is ignored. Stream Output The original input along with inserted content is added to stream output. Stream Error Any errors are listed here. Description The command inserts the <insert_string> before the target instance. The command CAN ALSO BE USED WITH FILES. Simply read in the contents of the file using the repro command into a str variable. Perform any desired operations on the str variable, then write the str variable back to the file. The following is an example. var str content # Read file. repro myfile.html > $content # Perform the desire operations on $content. . . . # Write the resulting str variable back to file. echo $content >myfile.html Restrictions Valid Examples var str s set $s = "Home: 123 East Main Street" sin "^Home^" "My " $s The above will insert "My " before the first instance of "Home" in string $s. It will also print the resulting string to stream output. To change the variable $s only, and not to see the output, use the following. sin "^Home^" "My " $s > null If you want to see the output but leave the variable $s unchanged, use the -p option, as follows. sin -p "^Home^" "My " $s sin "^Home^5" "My " $s The above will insert "My " before the fifth instance of "Home" in string $s. If the fifth instance does not exist, no changes will be made. sin "^Home^5]" "My " $s The ] suggests that the target string is everything upto and including the fifth instance of "Home". Thus, if the fifth instance of "Home" exists, "My " will be inserted before the whole string (and not before the fifth instance). If the fifth instance of "Home " does not exist, no changes will be made. Invalid Examples var int i ... sin "^Zip Code^" "Postal Code or " $i Will produce error. Variable $i is not a str variable. See Also systemvar var echo escape sen stex sap sal lin win chin RE

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