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<html>
<head>
<title>
WRAP2 - Break Up Long Lines in a File
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
WRAP2 <br> Break Up Long Lines in a File
</h1>
<hr>
<p>
<b>WRAP2</b>
is a C++ program which
reads a file and makes a
copy in which long lines have been broken up. A line is "wrapped"
if its length would exceed a given maximum. Unlike the <b>WRAP</b>
program, this program will wrap the line before the maximum length
is reached, if that will help avoid breaking up words.
</p>
<h3 align = "center">
Usage:
</h3>
<p>
<blockquote>
<b>wrap2</b> <i>old</i> <i>new</i> <i>wrap_length</i>
</blockquote>
where
<ul>
<li>
<i>old</i> is the file to be modified;
</li>
<li>
<i>new</i> is the modified copy of the old file.
</li>
<li>
<i>wrap_length</i> is the maximum line length in characters.
</li>
</ul>
</p>
<h3 align = "center">
Licensing:
</h3>
<p>
The computer code and data files described and made available on this web page
are distributed under
<a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
</p>
<h3 align = "center">
Languages:
</h3>
<p>
<b>WRAP2</b> is available in
<a href = "../../cpp_src/wrap2/wrap2.html">a C++ version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../cpp_src/cr2crlf/cr2crlf.html">
CR2CRLF</a>
a C++ program which
reads a text file and replaces carriage returns by carriage returns + line feeds.
</p>
<p>
<a href = "../../cpp_src/cr2lf/cr2lf.html">
CR2LF</a>,
a C++ program which
reads a text file and replaces
carriage returns by line feeds.
</p>
<p>
<a href = "../../cpp_src/crrm/crrm.html">
CRRM</a>,
a C++ program which
reads a text file and writes a copy which has no carriage returns.
</p>
<p>
<a href = "../../cpp_src/deblank/deblank.html">
DEBLANK</a>,
a C++ program which
makes a copy of a text file in which blank lines have been removed.
</p>
<p>
<a href = "../../cpp_src/decomment/decomment.html">
DECOMMENT</a>,
a C++ program which
makes a copy of a text file which contains no "comment" lines
(that begin with "#").
</p>
<p>
<a href = "../../cpp_src/filum/filum.html">
FILUM</a>,
a C++ library which
performs various operations
on files.
</p>
<p>
<a href = "../../f_src/reformat/reformat.html">
REFORMAT</a>,
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.
</p>
<p>
<a href = "../../cpp_src/reword/reword.html">
REWORD</a>,
a C++ program which
makes a copy of a file
in which each line has the same number of "words".
</p>
<p>
<a href = "../../cpp_src/uncontrol/uncontrol.html">
UNCONTROL</a>,
a C++ program which
makes a copy of a text file which contains no control characters.
</p>
<p>
<a href = "../../cpp_src/wrap/wrap.html">
WRAP</a>,
a C++ program which
makes a copy of a text file in which long lines have been wrapped.
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "wrap2.cpp">wrap2.cpp</a>, the source code;
</li>
<li>
<a href = "wrap2.sh">wrap2.sh</a>, commands to
compile and load the source code;
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "gettysburg.txt">gettysburg.txt</a>,
Lincoln's Gettysburg Address, stored as a long line, a blank
line, a long line, a blank line, and a very long line.
</li>
<li>
<a href = "gettysburg_80.txt">gettysburg_80.txt</a>,
the same file, wrapped to 80 characters maximum.
</li>
<li>
<a href = "gettysburg_50.txt">gettysburg_50.txt</a>,
the same file, wrapped to 50 characters maximum.
</li>
<li>
<a href = "gettysburg_30.txt">gettysburg_30.txt</a>,
the same file, wrapped to 30 characters maximum.
</li>
</ul>
</p>
<h3 align = "center">
List of Routines:
</h3>
<p>
<ul>
<li>
<b>MAIN</b> is the main program for WRAP2.
</li>
<li>
<b>HANDLE</b> makes a copy of a file in which no line exceeds a given length.
</li>
<li>
<b>S_LEN_TRIM</b> returns the length of a string to the last nonblank.
</li>
<li>
<b>S_TO_I4</b> reads an integer value from a string.
</li>
<li>
<b>TIMESTAMP</b> prints the current YMDHMS date as a time stamp.
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../cpp_src.html">
the C++ source codes</a>.
</p>
<hr>
<i>
Last revised on 27 March 2007.
</i>
<!-- John Burkardt -->
</body>
</html>