WRAP
Break Up Long Lines in a File

WRAP is a C++ program which reads a file and makes a copy in which long lines have been broken up.

The user specifies a maximum allowable line length. Any line of text in the input file that is longer than this length is broken into two or more lines, with all but the last of these pieces being exactly the maximum length.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Related Data and Programs:

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

CRRM is a C++ program which reads a text file and writes a copy which has no carriage returns.

DEBLANK is a C++ program which makes a copy of a text file in which blank lines have been removed.

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

FILUM is a C++ library which performs various operations on files.

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

REWORD is a C++ program which makes a copy of a file in which each line has the same number of "words".

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

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:

wrap file1 file2 wrap_length

reads the lines of file1, writing copies of the lines to file2, breaking the lines if necessary so that they are never longer than wrap_length characters.

Source Code:

• wrap.C, the source code;
• wrap.csh, commands to compile and load the source code;

Examples and Tests:

• runon.xgl, an XGL file contained in a single LONG line;
• wrapped.xgl, the "wrapped" file.;

List of Routines:

• MAIN is the main program for WRAP.
• HANDLE makes a copy of a file in which no line exceeds a given length.
• S_LEN_TRIM returns the length of a string to the last nonblank.
• S_TO_I4 reads an integer value from a string.
• TIMESTAMP prints the current YMDHMS date as a time stamp.

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