lf2crlf

lf2crlf, a C++ code which converts line feeds to carriage returns + 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, LF2CRLF is the correct code to use if you want to convert a UNIX text file to a PC text file, since it will replace each occurrence of LF by CR+LF.

Usage:

lf2crlf 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:

lf2crlf is available in a C++ version.

Related Data and codes:

lf2crlf_test

cr2crlf, a C++ code which replaces carriage returns by carriage returns + line feeds.

CR2LF, a C++ code which replaces all carriage returns by line feeds.

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

Source Code:

• lf2crlf.cpp, the source code;
• lf2crlf.sh, compiles the source code;