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Full Discussion: Aligning a file
Top Forums Shell Programming and Scripting Aligning a file Post 302914156 by drl on Friday 22nd of August 2014 07:51:17 AM
Old 08-22-2014
Hi.

The general alignment program align provides a feature for processing only lines on which patterns match:
Code:
#!/usr/bin/env bash

# @(#) s1	Demonstrate align text for matched lines, align.
# For align code, see:
# http://freecode.com/projects/align

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
# export PATH="/usr/local/bin:/usr/bin:/bin"
LC_ALL=C ; LANG=C ; export LC_ALL LANG
pe() { for _i;do printf "%s" "$_i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for _i;do printf "%s" "$_i";done;printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && $C align

FILE=${1-data1}

pl " Input data file $FILE:"
cat $FILE

pl " Results, align text only in lines in which \"==>\" appears:"
align -e "/==>/" $FILE

pl " Results, with a wider gutter:"
align -g 5 -e "/==>/" $FILE

exit 0

producing:
Code:
$ ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution        : Debian 5.0.8 (lenny, workstation) 
bash GNU bash 3.2.39
align 1.7.0

-----
 Input data file data1:
abc
qwert
qwer
afweferf
wdfwefwe ==> kjhjkwdd
mnmn ==> jkjkjwekj
poiu ==> lklklke
tytyutut ==> olkjmnsmn
This text need not be aligned.

-----
 Results, align text only in lines in which "==>" appears:
abc
qwert
qwer
afweferf
wdfwefwe ==> kjhjkwdd
mnmn     ==> jkjkjwekj
poiu     ==> lklklke
tytyutut ==> olkjmnsmn
This text need not be aligned.

-----
 Results, with a wider gutter:
abc
qwert
qwer
afweferf
wdfwefwe     ==>     kjhjkwdd
mnmn         ==>     jkjkjwekj
poiu         ==>     lklklke
tytyutut     ==>     olkjmnsmn
This text need not be aligned.

The code for align can be obtained from the URL noted in the first part of the script.

Best wishes ... cheers, drl
Last edited by drl; 08-24-2014 at 02:27 PM.. Reason: Edit 1 - correct minor typo.
These 2 Users Gave Thanks to drl For This Post:
ctrld fpmurphy
 

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LEARN ABOUT DEBIAN

mybackground

MyBackground(1x)					   AfterStep X11 window manager 					  MyBackground(1x)

NAME

       MyBackground - details how background is to be rendered

CONFIGURATION OPTIONS

       Align [type]

	      it will align resulting image according to type. Possible values are : 1: - align to the right of the screen

	      2: - align to the bottom of the screen

	      3: - align to the bottom-right of the screen

	      0 or 4: - align to the center of the screen This option works only in conjunction with the following Pad option.

       Cut "geometry"

	      will cut piece with specified geometry from the source image.

       MyBackground "background_name"

       background_option

       ~MyBackground

	      Specifies the beginning of a background definition. The background can be referred to later by background_name. ~MyBackground ends a
	      root background definition.

       Pad [type color]

	      will pad image if it is smaller then screen with specified color. Possible type values are :

	      1: - pad horizontally and tile vertically

	      2: - pad vertically and tile horizontally

	      3: - pad both vertically and horizontally to make the image the size of the screen.

       Scale [geometry]

	      scale image to specified geometry. If geometry is omitted the image will be scaled to the screen size.

       Tint color

       Use type  "data"

	      Specifies what to use as the root background. Possible type values are :

	      0: load image from the file. In that case "data" should specify filename.

	      1: Use MyStyle definition to fill root. In that case "data" should specify one of the MyStyle names defined in your look file.

	      2: Use external application to set root background. "data" should specify command line options to this external app. If you wish	to
	      use  another  application to display the root background, you need to set the "--with-imageloader" flag to use that application then
	      recompile AfterStep.)

	      Note: remaining Background options are valid only for type of 0 !!!

	      The remaining options will perform transformations on the source image, in this order:

       Cut->Tint->Scale->Align->Pad.

3rd Berkeley Distribution					AfterStep v.2.2.11						  MyBackground(1x)
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