cr2lf

cr2lf, a C++ code which converts carriage returns to linefeeds.

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;
• Macintosh (post OSX) text lines end with the CR+LF (carriage return + line feed) 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 code 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, cr2lf() is the correct code to use if you want to convert a pre OSX Macintosh text file to a UNIX text file, since it will replace each occurrence of CR by LF.

Usage:

cr2lf old new

• old is the file to be modified;
• new is the modified copy of the old file.

Licensing:

The information on this web page is distributed under the MIT license

Languages:

cr2lf is available in a C++ version.

Related Data and Programs:

cr2lf_test

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Source Code:

• cr2lf.cpp, the source code;
• cr2lf.sh, compiles the source code;