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Diff script for 2 files.
Post 302289670 by bishnu.bhatta on Friday 20th of February 2009 07:46:30 AM
02-20-2009
Diff script for 2 files.
Hi all,
I am stuck up in middle of a process.
I have 2 files A and B.
Some lines in A are commented with either // or /* */
But basically content (uncommented portion) of both the files are same.
Now I want to prove that both the files are same using some script.
I can't do a diff as it will give me commented lines as difference.
I thought of an algo for this:
1.Format both the files to remove leading and trailing blank spaces,append some char(~~~) to mark \n.
Do the following(Step 2-4) for both the files
2.Create only valid fields file by removing /**/ and //
2.1.Put all characters in array
2.2.Read a char and check if it is / If YES go to 2.3 else go to step 3
2.3.If YES, then check the next char to be / or *
2.4.If next char is * then Create a REJECT array and store the chars till */ is encountered
2.5.If next char is / then Create a REJECT array and store the chars till \n in encountered
3.Put all valid fields in VALID array
4.Reconstruct the file with elements from VALID array(thats why I had used the indicator "~~~")
5.Do diff for both files now
Till step 2.1 I am done.but I am now confused
with step 2.3
Any other alternative ideas welcomed.
I am stuck up in middle of a process.
I have 2 files A and B.
Some lines in A are commented with either // or /* */
But basically content (uncommented portion) of both the files are same.
Now I want to prove that both the files are same using some script.
I can't do a diff as it will give me commented lines as difference.
I thought of an algo for this:
1.Format both the files to remove leading and trailing blank spaces,append some char(~~~) to mark \n.
Do the following(Step 2-4) for both the files
2.Create only valid fields file by removing /**/ and //
2.1.Put all characters in array
2.2.Read a char and check if it is / If YES go to 2.3 else go to step 3
2.3.If YES, then check the next char to be / or *
2.4.If next char is * then Create a REJECT array and store the chars till */ is encountered
2.5.If next char is / then Create a REJECT array and store the chars till \n in encountered
3.Put all valid fields in VALID array
4.Reconstruct the file with elements from VALID array(thats why I had used the indicator "~~~")
5.Do diff for both files now
Till step 2.1 I am done.but I am now confused
with step 2.3Any other alternative ideas welcomed.
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LEARN ABOUT DEBIAN
mysql::diff
MySQL::Diff(3pm) User Contributed Perl Documentation MySQL::Diff(3pm) NAME
MySQL::Diff - Generates a database upgrade instruction set SYNOPSIS
use MySQL::Diff; my $md = MySQL::Diff->new( %options ); my $db1 = $md->register_db($ARGV[0], 1); my $db2 = $md->register_db($ARGV[1], 2); my $diffs = $md->diff(); DESCRIPTION
Generates the SQL instructions required to upgrade the first database to match the second. METHODS
Constructor new( %options ) Instantiate the objects, providing the command line options for database access and process requirements. Public Methods Fuller documentation will appear here in time :) o register_db($name,$inx) Reference the database, and setup a connection. The name can be an already existing 'MySQL::Diff::Database' database object. The index can be '1' or '2', and refers both to the order of the diff, and to the host, port, username and password arguments that have been supplied. o db1() o db2() Return the first and second databases registered via "register_db()". o diff() Performs the diff, returning a string containing the commands needed to change the schema of the first database into that of the second. COPYRIGHT AND LICENSE
Copyright (c) 2000-2011 Adam Spiers. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
mysqldiff, MySQL::Diff::Database, MySQL::Diff::Table, MySQL::Diff::Utils AUTHOR
Adam Spiers <mysqldiff@adamspiers.org> perl v5.14.2 2012-04-06 MySQL::Diff(3pm)