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Sample Script - SS_FindLinesStr
( Some of the sample scripts may not be reproduced correctly in html because those scripts, especially web-related scripts, have html tags such as < tr > in their code. For an accurate, copy-and-paste'able text version of this script, see SS_FindLinesStr.txt . ) |
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##################################################################### # SCRIPT: SS_FindLinesStr # # This script finds lines in a file that contain a specified string, # called the search string. # # The search string is assigned using FVA (Forward Variable Assignment) # for variable $str. The value is of the form "abc", etc. # # The name of the file from which lines are to be found # is assigned using FVA for variable $file. The value is of the form # "C:/abc/x.txt" or "./x.txt" etc. # # The start line is assigned using FVA for str variable $from. The # value is of the form "1", "2", etc. If no value supplied, "1" is assumed. # # The end line is assigned using FVA for int variable $to. The # value is of the form "1", "100", etc. If no value is supplied, "l" (last line) is assumed. # # Note that $from and $to are str variables. If you are passing int values, use the makestr() function # as follows. # from(makestr(int(1))) to(makestr(int(5))) # # This script can be stored and edited as necessary, in a text file # called SS_FindLinesStr.txt, in a directory that is in your $path. # The script can then be called as # # script SS_FindLinesStr.txt str("abc") file("mypage.html") from("1") to("5") # # ##################################################################### # Declare FVA variables. var str str # The first str is variable type, the second, variable name. var str file var str from var str to # Set start and end lines to default values if not assigned. if ($from=="") set $from="1" endif if ($to=="") set $to="l" endif # Extract lines in the range from the file. # We will collect the content in the following variable. var str content script SS_ExtractLines.txt file($file) from($from) to($to) >$content # We will count the line numbers. # Note that the first line in $content is actually the $from'th line in $file. # So, to report correct original line numbers, we will add ($from-1) to $num. # (If $from has an erroneous value, such as -1, the line number reporting will be # skewed.) var int num if ($str <> "") do # We will be using a search string of the form "^abc^" for the sen command # inside the following while loop. We will cosntruct that search string here, # for performance reasons, so that it is not created each time around the loop. var str senArg set $senArg = "^"+$str+"^" while ($content <> "") do # Increment line number. set $num = $num+1 # Get the next line into a variable $line. var str line lex -e "1" $content >$line # We used the -e option to get even empty lines. If we did not use the -e option, # our reporting of line numbers would be incorrect. # Is our $str present in $line ? # Note that we are using -c option, but you may wish to change it based on # your requirements. if { sen -c $senArg $line } > 0 do # We found the search string. List the line. Remember to do the # correct line number calculation as described above. echo "Line: " ($num+makeint(str($from))-1) "\t" $line done endif done done endif |
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