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Full Discussion: Replace a character with other
Top Forums UNIX for Dummies Questions & Answers Replace a character with other Post 302741619 by Don Cragun on Sunday 9th of December 2012 01:33:30 PM
Old 12-09-2012
Quote:
Originally Posted by RudiC
I'm a bit surprised: ASCII chr(172) (decimal 172) IS¬. What your purpose of replacing it? Or do you mean the literal string "chr(172)"?
The sed command I suggested assumes that abhi_123 wanted the literal string "chr(172)". The byte with decimal value 172 is not as ASCII character at all. (ASCII only defines bytes with values 0 through 127 and a character with the glyph ¬ is not one of them.) The EBCDIC character representing the glyph ¬ has decimal value 95. The ISO/IEC 8859-1 glyph for the character with decimal value 172 is ¬. The 8859-2 glyph for the character with decimal value 172 is Ť. The 8859-3 glyph for the character with decimal value 172 is Ĵ...

Probably more important, however, is that in UTF-8 (which is becoming more common as a code set AND appears to be the encoding used in the input abhi_123 supplied) the two byte character representing the glyph ¬ has bytes with decimal values 194 and 172 (in that order) and the single byte with decimal value 172 is an encoding error.

If abhi_123 is trying to convert an input file encoded in UTF-8 into a file encoded in 8859-1, the iconv utility should be used instead of trying to map an individual character's value into an invalid character in the output data stream being written by sed.
 

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LEARN ABOUT CENTOS

paps

PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME

       paps - UTF-8 to PostScript converter using Pango

SYNOPSIS

       paps [options] files...

DESCRIPTION

       paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves
       through the pango ft2 backend.

OPTIONS

       These programs follow the usual GNU command line syntax, with long options starting with  two  dashes  (`-').   A  summary  of  options	is
       included below.

       --landscape
	      Landscape output. Default is portrait.

       --columns=cl
	      Number of columns output. Default is 1.

       --font=desc
	      Set the font description. Default is Monospace 12.

       --rtl  Do rtl layout.

       --paper ps
	      Choose paper size. Known paper sizes are legal, letter, a4. Default is A4.

       --bottom-margin=bm
	      Set bottom margin in postscript points (1/72 inch). Default is 36.

       --top-margin=tm
	      Set top margin. Default is 36.

       --left-margin=lm
	      Set left margin. Default is 36.

       --right-margin=rm
	      Set right margin. Default is 36.

       --help Show summary of options.

       --header
	      Draw page header for each page.

       --markup
	      Interpret the text as pango markup.

       --encoding=ENCODING
	      Assume the documentation encoding is ENCODING.

       --lpi  Set the lines per inch. This determines the line spacing.

       --cpi  Set the characters per inch. This is an alternative method of specifying the font size.

       --stretch-chars
	      Indicates  that  characters  should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops
	      behaviour.

AUTHOR

       paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>.

       This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others).

								  April  17, 2006							   PAPS(1)
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