CRRM
Remove Carriage Returns

CRRM is an executable C++ program that removes carriage returns from a file.

I constantly run into problems, when transferring a file from one system to another, involving different conventions for ending a line of text.

It is my understanding that the following "conventions" apply:

• Macintosh (pre OSX) text lines end with the CR (carriage return) character;
• PC text lines end with the CR+LF (carriage return + line feed) characters;
• UNIX text lines end with the LF (line feed) character;

While your file transfer program will usually transfer a text file in such a way that that carriage control is properly translated, this sometimes doesn't happen, especially if the text file is transferred "verbatim", that is, as though it were a binary file.

In such a case, CRRM is the correct program to use if you want to convert a PC text file to a UNIX text file, since it will replace each occurrence of CR+LF by LF.

Related Data and Programs:

CR2CRLF is an executable C++ program which replaces carriage returns by carriage returns + line feeds.

CR2LF is an executable C++ program which reads a text file and replaces carriage returns by line feeds.

DEBLANK is an executable C++ program which makes a copy of a text file which contains no blank lines.

DECOMMENT is an executable C++ program which makes a copy of a text file which contains no "comment" lines (that begin with "#").

FILUM is a library of C++ routines for performing various operations on files.

LF2CR is an executable C++ program which replaces linefeeds by carriage returns.

LF2CRLF is an executable C++ program which replaces linefeeds by carriage returns + line feeds.

LFRM is an executable C++ program which removes all linefeeds from a file.

REFORMAT is an executable FORTRAN90 program which reads a text file that contains only real values, and writes a copy which has a fixed number of real values on each line.

REWORD is an executable C++ program which reads a text file and writes a copy which has a fixed number of "words" per line.

UNCONTROL is an executable C++ program which makes a copy of a text file which contains no control characters.

WRAP is an executable C++ program which makes a copy of a text file in which no line is longer than a user-specified wrap length.

WRAP2 is a C++ program which wraps long lines in a text file, but which wraps some lines "early", so as to avoid breaking words.

Usage:

crrm file1 file2

The program will read file1 and create file2

crrm file1

The user will be prompted for the output file.

crrm

The user will be prompted for both files.

Source Code:

• crrm.C, the source code;
• crrm.csh, commands to compile and link the code;

Examples and Tests:

• crlf.txt, the input "CR+LF" file;
• lf.txt, the output "LF" text;

List of Routines:

• MAIN is the main program for CRRM.
• HANDLE makes a copy of a file in which CR's are removed.
• TIMESTAMP prints the current YMDHMS date as a time stamp.

You can go up one level to the C++ source codes.