ccp 1.2 - reCoding CoPy (GPLed)

ccp can copy stdin or file to stdout, file to file, or files to directory, including recursive copying of directories. While copying, it can apply one or several recodings. A recoding maps each byte to one or several (e.g., zero) bytes. Recoding tables are read from files. A recoding table can be in the text form or in the binary form. You can easily write a recoding table as a text file. Binary files are usually smaller and can be loaded faster. They can be produced from text recoding files by ccp. ccp can also multiply recodings - produce a table which has the same effect as several recodings applied sequentially. This multiplication is, of course, not commutative.

The base distribution contains recoding tables for converting DOS text files to Unix text files and back (d2u and u2d), conversions between russian encodings koi8-r, alt (cp866), win (cp1251), iso-8859-5, LaTeX (T2A) in any direction (k2a, i2k, a2w, k2l, etc.), for converting these encodings to transliteration (recodings k2t, etc.), and for filtering out control characters (recoding c).

Some typical examples of use:

• ccp -d2u /dos/mydir/*.txt somedir/

  converts DOS text files to UNIX text files

• ccp -d2u -a2k /dos/mydir/rus.txt rus.txt

  converts DOS russian text in alt to UNIX russian text in koi8

• ccp -u2d -k2w rus.txt /dos/mydir/rus.txt

  converts UNIX russian text in koi8 to Windows russian text

• ccp -d2u -a2k =da2uk

  produces the table for recoding DOS alt -> UNIX koi8

• ccp -da2uk /dos/mydir/rus.txt | more

  copies rus.txt to stdout using this table

• ccp -x2y file1 dir2 file3 dir

  copies file1, dir2 (recursively), and file3 into dir

• ccp -x2y dir/ newname

  creates the directory newname, and copies all files in dir into it (recursively)

• ccp +a2k =k2a

  inverts a2k producing k2a

• ccp -l2k -k2w =

  dumps the product of the recodings l2k and k2a into stdout, in the text form

• foo | ccp -i2k | bar

  copies stdin to stdout (use in pipes)

• ccp -x2y - | telnet must.die | ccp -y2x -

  telnet to a host using a different encoding

• ccp -c strange_file | more

  view file filtering out control characters

You can easily write your own recoding tables. Here is an example:

# This is a comment
'a' -> 'b'
0F -> 0A # hexadecimal
'x' -> 'uvw'
'y' ->
# y is recoded to nothing
1A -> 2A2B2C # hexadecimal
"z" -> "abc" # "z" and 'z' are equivalent
"'" -> '"' # ' is recoded to "

ccp -code foo bar

ccp -code =code

ccp -code1 -code2 =code12 +code3 foo bar

You can specify a list of directories where to search for recoding tables via the environment variable CCPPATH. They are separated by :. By default, /usr/share/ccp:. is used. In each directory, ccp first tries to find the binary form; if not successful, then the text form with the extension .16

Download: ccp-1.2.tar.gz (11K), ccp-1.2-1.i686.rpm (18K), ccp-1.2-1.src.rpm (13K) (rpms are for Red Hat Enterprise Linux 4).