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Full Discussion: Finding BEGINNING & ENDING positions of sequentially increasing sublists from a perl numeric array
Top Forums Shell Programming and Scripting Finding BEGINNING & ENDING positions of sequentially increasing sublists from a perl numeric array Post 302572205 by durden_tyler on Wednesday 9th of November 2011 10:39:58 AM
Old 11-09-2011
Quote:
Originally Posted by teknokid1
I have got an Perl array like:
Code:
@array = (1,2,3,4,5,6,1,2,3,4,1,2,1,2,3,4,5,6,7,8,9...............)

This numeric sequence will be always sequentially increasing, unless it encounters, The beginning of the new sequentially increasing numeric sequence.
SO in this array we get sequentially increasing many subsists.

There can be n numbers in this array and so can many sequentially increasing subsists.These sublists will always be increasingly sorted.

I want to extract the BEGINING and the ENDING positions of these subsists in the array with respect to array beginning position 0.
Code:
(1,2,3,4,5,6)              BEG=0  END=5
(1,2,3,4)                  BEG=6  END=9
(1,2)                      BEG=10 END=11
(1,2,3,4,5,6,7,8,9)        BEG=12 END=20
.                          .
.                          .
.                          .
.                          .

Code:
$
$
$ perl -e '@x = (1,2,3,4,5,6,1,2,3,4,1,2,1,2,3,4,5,6,7,8,9);
           @y = grep {$x[$_] > $x[$_+1]} (0..$#x);
           foreach $i (0..$#y) {
             $begin = $i == 0 ? 0 : $prev+1;
             $end = $y[$i];
             printf ("%-30s    BEG=%-2s   END=%s\n", "(".join(",", @x[$begin..$end]).")", $begin, $end);
             $prev = $end;
           }
          '
(1,2,3,4,5,6)                     BEG=0    END=5
(1,2,3,4)                         BEG=6    END=9
(1,2)                             BEG=10   END=11
(1,2,3,4,5,6,7,8,9)               BEG=12   END=20
$
$
$

tyler_durden
This User Gave Thanks to durden_tyler For This Post:
jim mcnamara
 

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LEARN ABOUT DEBIAN

mdbfontencoding

mdbFontEncoding(5)						 The m17n Library						mdbFontEncoding(5)

NAME

       mdbFontEncoding - Font Encoding

DESCRIPTION

       The m17n library loads information about the encoding of each font form the m17n database by the tags <font, encoding>. The data is loaded
       as a plist of this format.

       FONT-ENCODING ::= PER-FONT *

       PER-FONT ::= '(' FONT-SPEC ENCODING [ REPERTORY ] ')'

       FONT-SPEC ::=
	   '(' [ FOUNDRY FAMILY
	      [ WEIGHT [ STYLE [ STRETCH [ ADSTYLE ]]]]]
	    REGISTRY ')'

       ENCODING ::= SYMBOL

       FONT-SPEC is to specify properties of a font. FOUNDRY to REGISTRY are symbols corresponding to Mfoundry to Mregistry property of a font.
       See m17nFont for the meaning of each property.

       For instance, this FONT-SPEC:

	   (nil alice0 lao iso8859-1)

       should be applied to all fonts whose family name is 'alice0 lao', and registry is 'iso8859-1'.

       ENCODING is a symbol representing a charset. A font matching FONT-SPEC supports all characters of the charset, and a character code is
       mapped to the corresponding glyph code of the font by this charset.

       REPERTORY is a symbol representing a charset or 'nil'. Omitting it is the same as specifying ENCODING as REPERTORY. If it is not 'nil', the
       charset specifies the repertory of the font, i.e, which character it supports. Otherwise, whether a specific character is supported by the
       font or not is asked to each font driver.

       For so called Unicode fonts (registry is 'iso10646-1'), it is recommended to specify 'nil' as REPERTORY because such fonts usually supports
       only a subset of Unicode characters.

COPYRIGHT

       Copyright (C) 2001 Information-technology Promotion Agency (IPA)
       Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)
       Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License
       <http://www.gnu.org/licenses/fdl.html>.

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