Search for an exact string in a Terminal Post: 302465532

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Top Forums UNIX for Advanced & Expert Users Search for an exact string in a Terminal Post 302465532 by DGPickett on Friday 22nd of October 2010 04:55:02 PM

10-22-2010

Registered User

Man pages are displayed on $PAGER, so you get your choice. The default is more or less. I use pg when i can get it. However, pager regex rules are a bit kinky.

Beyond what the more or less man page says about pattern searching and moving forward and, if you have a file input, backward:

The man pages have teletype print artifacts in them like "_\ba" for underscored "a" and "c\bc" for bold "c" (\b is backspace to overstrike). You can write a sed routine to flush out the .\b or you can use a web man page.

Code:

sed '
        s/\(.\)\^H\1/\1/g
        s/\(.\)\^H\1/\1/g
        s/\(.\)\^H\1/\1/g
        s/\(.\)\^H_/\1/g
        s/_\^H\(.\)/\1/g
        s/.\^H\(.\)/\1/g
 '|sed '
        /^$/{
                :l
                $b
                N
                s/^\n$//
                t l
                }
 '

or in C:

$ cat mysrc/manclean.c

#include <stdio.h>

static void p_putchar( int c )
{
        if ( c != EOF
          && EOF == putchar( c ) )
        {
                if ( ferror( stdout ) )
                {
                        perror( "stdout" );
                        exit( 1 );
                }

                exit( 0 );
        }
}

main()
{
        static int c ;
        static int c2 ;
        static int c3 ;
        static int ct = 0 ;

        do
        {
                switch( c = getchar() )
                {
                case EOF:
                        if ( ferror( stdin ) )
                        {
                                perror( "stdin" );
                        }
                        continue ;

                case '\b':
                        if ( ct < 2 )
                        {
                                ct = 0 ;
                                continue ;
                        }

                        c2 = c3 ;
                        ct = 1 ;
                        continue ;

                case '\n':
                        if ( ct > 1
                          && c3 == '\n'
                          && c2 == '\n' )
                        {
                                ct = 2 ;
                                continue ;
                        }

                        /* intentional fall through */
                default:
                        break ;
                }

                switch( ++ct )
                {
                case 1:
                        c2 = c ;
                        continue ;

                case 2:
                        break ;
                default:
                        p_putchar( c3 );
                        break ;
                }

                c3 = c2 ;
                c2 = c ;

        } while ( c != EOF );

        switch( ct )
        {
        case 0:
                break ;
        case 1:
                p_putchar( c2 );
        default:
                p_putchar( c3 );
                p_putchar( c2 );
                break ;
        }

        exit( 0 );
}

Last edited by DGPickett; 10-22-2010 at 06:02 PM..

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LEARN ABOUT DEBIAN

www::search::altavista

WWW::Search::AltaVista(3pm)				User Contributed Perl Documentation			       WWW::Search::AltaVista(3pm)

NAME

       WWW::Search::AltaVista - class for searching www.altavista.com

SYNOPSIS

	   require WWW::Search;
	   $search = new WWW::Search('AltaVista');

DESCRIPTION

       This class is an AltaVista specialization of WWW::Search.  It handles making and interpreting AltaVista searches http://www.altavista.com.

       This class exports no public interface; all interaction should be done through WWW::Search objects.

OPTIONS

       The default is "any of these words" (OR of query terms).

       aqa=all+of+these+words
	       Add the AND of these words to the query.

       aqp=this+exact+phrase
	       Add "this exact phrase" to the query.

       aqo=any+of+these+words
	       Add the OR of these words to the query.	This is where the query is placed by default.

       aqn=none+of+these+words
	       Add NOT these words to the query.

       aqb=(boolean+AND+expression)+NEAR+entry
	       Add a boolean expression to the query.  Operators are AND, OR, AND NOT, and NEAR.  In the browser interface, the boolean expression
	       can not be combined with any other query types listed above.  You should probably build the boolean expression with parentheses and
	       spaces and urlescape it.

       aqs=these+words
	       Pages containing "these words" will be ranked highest.

       kgs=[0,1]
	       To restrict the search to U.S. websites, set kgs=1.  The default is world-wide, kgs=0.

       kls=[0,1]
	       To restrict the search to pages in English and Spanish, set kls=1.  The default is no language restrictions, kls=0.

       filetype=[html,pdf]
	       To restrict the search to HTML pages only, set filetype=html.  To restrict the search to PDF pages only, set filetype=pdf.  The
	       default is no restriction on page type, filetype=.

       rc=dmn&swd=net+org+or.jp
	       To restrict the search to pages from certain domains, set rc=dmn and set swd to a list of desired toplevel domains.

       rc=url&lh=www.sandcrawler.com/SWB
	       To restrict the search to pages from a particular site, set rc=url and set lh to the site name and path.  Leave off the http://
	       from the site.

PUBLIC METHODS

   gui_query
       Call this instead of native_query() if you want to get the same results as your average Joe web surfer.

PRIVATE METHODS

   native_setup_search
       This private method does the heavy lifting after you call native_query() or gui_query().

   parse_tree
       This private method does the hard work of parsing the results out of the HTML.

BUGS

       Not all of the above options have been tested.
       Please report bugs and send feature requests via email to "bug-WWW-Search-AltaVista@rt.cpan.org", or via the web interface at
       https://rt.cpan.org/NoAuth/Bugs.html?Dist=WWW-Search-AltaVista <https://rt.cpan.org/NoAuth/Bugs.html?Dist=WWW-Search-AltaVista>.

SEE ALSO

       To make new back-ends, see WWW::Search, or the specialized AltaVista searches described in options.

AUTHOR

       Written by John Heidemann, "johnh@isi.edu"; maintained by Martin Thurn, "mthurn@cpan.org".

LICENSE

       This software is released under the same license as Perl itself.

COPYRIGHT

       Copyright (c) 1996-1998 University of Southern California.  All rights reserved.

       Redistribution and use in source and binary forms are permitted provided that the above copyright notice and this paragraph are duplicated
       in all such forms and that any documentation, advertising materials, and other materials related to such distribution and use acknowledge
       that the software was developed by the University of Southern California, Information Sciences Institute.  The name of the University may
       not be used to endorse or promote products derived from this software without specific prior written permission.

       THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
       MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

perl v5.12.4							    2011-11-02					       WWW::Search::AltaVista(3pm)

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