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<html>
<head>
<title>
FILUM - File Utilities
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
FILUM <br> File Utilities
</h1>
<hr>
<p>
<b>FILUM</b>
is a C++ library which
handles information in text files.
</p>
<p>
The original version of this library used the C representation of strings as
pointers to characters. The library is being updated to use the C++ string
data type.
</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>FILUM</b> is available in
<a href = "../../c_src/filum/filum.html">a C version</a> and
<a href = "../../cpp_src/filum/filum.html">a C++ version</a> and
<a href = "../../f77_src/filum/filum.html">a FORTRAN77 version</a> and
<a href = "../../f_src/filum/filum.html">a FORTRAN90 version</a> and
<a href = "../../math_src/filum/filum.html">a Mathematica version</a> and
<a href = "../../m_src/filum/filum.html">a MATLAB version</a> and
<a href = "../../py_src/filum/filum.html">a Python version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<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 removes the carriage return character.
</p>
<p>
<a href = "../../cpp_src/deblank/deblank.html">
DEBLANK</a>,
a C++ program which
reads a text file and writes a copy which has no blank lines.
</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/detroff/detroff.html">
DETROFF</a>,
a C++ program which
removes from a file every occurrence of the TROFF overprint
pair character+backspace, which can make a MAN page printable;
</p>
<p>
<a href = "../../cpp_src/file_name_sequence/file_name_sequence.html">
FILE_NAME_SEQUENCE</a>,
a C++ program which
demonstrates ways to generate a sequence of filenames
that can be used when generating images for an animation.
</p>
<p>
<a href = "../../f_src/reformat/reformat.html">
REFORMAT</a>,
a FORTRAN90 program which
makes a copy of a file with a given number of "words" per line.
</p>
<p>
<a href = "../../cpp_src/reword/reword.html">
REWORD</a>,
a C++ program which
reads a text file and writes a copy which has a fixed number
of "words" per line.
</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 no line is longer than a user-specified wrap length.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
Tom Christiansen, Nathan Torkington,<br>
"8.6: Picking a Random Line from a File",<br>
Perl Cookbook, pages 284-285,<br>
O'Reilly, 1999.
</ol>
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "filum.cpp">filum.cpp</a>, the source code;
</li>
<li>
<a href = "filum.hpp">filum.hpp</a>, the include file;
</li>
<li>
<a href = "filum.sh">filum.sh</a>,
commands to compile the source code;
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "filum_prb.cpp">filum_prb.cpp</a>, the calling program;
</li>
<li>
<a href = "filum_prb.sh">filum_prb.sh</a>,
commands to compile, link and run the calling program;
</li>
<li>
<a href = "filum_prb_output.txt">filum_prb_output.txt</a>,
the output file.
</li>
</ul>
</p>
<p>
Files used for some of the tests include:
<ul>
<li>
<a href = "filum_prb_4by5.txt">filum_prb_4by5.txt</a>, a file with
missing right parentheses.
</li>
<li>
<a href = "filum_prb_test.txt">filum_prb_test.txt</a>, a sample file.
</li>
<li>
<a href = "filum_prb_append.txt">filum_prb_append.txt</a>, an
example of FILE_APPEND.
</li>
<li>
<a href = "filum_prb_braces.txt">filum_prb_braces.txt</a>, a file
with balanced and legal braces.
</li>
<li>
<a href = "filum_prb_columns.txt">filum_prb_columns.txt</a>, a file
of 4 rows and 5 columns of numeric data.
</li>
<li>
<a href = "filum_prb_copy.txt">filum_prb_copy.txt</a>, an example of
FILE_COPY.
</li>
<li>
<a href = "filum_prb_reverse_columns.txt">
filum_prb_reverse_columns.txt</a>,
an example of FILE_REVERSE_COLUMNS.
</li>
<li>
<a href = "filum_prb_parens1.txt">filum_prb_parens1.txt</a>, a file
with missing right parentheses.
</li>
<li>
<a href = "filum_prb_parens2.txt">filum_prb_parens2.txt</a>, a file
with illegally occurring right parentheses.
</li>
<li>
<a href = "filum_prb_parens3.txt">filum_prb_parens3.txt</a>, a file
with balanced and legal parentheses.
</li>
<li>
<a href = "filum_prb_reverse_rows.txt">filum_prb_reverse_rows.txt</a>,
an example of FILE_REVERSE_ROWS.
</li>
<li>
<a href = "story.txt">story.txt</a>,
a file containing a title line and 5 paragraphs of text.
</li>
</ul>
</p>
<p>
<b>DATA_***.TXT</b> is a short sequence of three files, each having 8 data
items, 3 on the first line, 3 on the second, and 2 on the third line,
to be examined by FILE_SEQUENCE_SIZE.
<ul>
<li>
<a href = "data_100.txt">data_100.txt</a>,
the first file in a sequence of 3.
</li>
<li>
<a href = "data_101.txt">data_101.txt</a>,
the second file in a sequence of 3.
</li>
<li>
<a href = "data_102.txt">data_102.txt</a>,
the third file in a sequence of 3.
</li>
</ul>
</p>
<h3 align = "center">
List of Routines:
</h3>
<p>
<ul>
<li>
<b>CH_CAP</b> capitalizes a single character.
</li>
<li>
<b>CH_EQI</b> is true if two characters are equal, disregarding case.
</li>
<li>
<b>CH_IS_DIGIT</b> returns TRUE if a character is a decimal digit.
</li>
<li>
<b>CH_LOW</b> lowercases a single character.
</li>
<li>
<b>CH_TO_DIGIT</b> returns the integer value of a base 10 digit.
</li>
<li>
<b>CH_TO_ROT13</b> converts a character to its ROT13 equivalent.
</li>
<li>
<b>DIGIT_INC</b> increments a decimal digit.
</li>
<li>
<b>DIGIT_TO_CH</b> returns the base 10 digit character corresponding to a digit.
</li>
<li>
<b>FILE_CHAR_COUNT</b> counts the number of characters in a file.
</li>
<li>
<b>FILE_COLUMN_COUNT</b> counts the columns in the first line of a file.
</li>
<li>
<b>FILE_DELETE</b> deletes a named file if it exists.
</li>
<li>
<b>FILE_EXIST</b> reports whether a file exists.
</li>
<li>
<b>FILE_LINE_UNIFORM</b> returns a random line from a file.
</li>
<li>
<b>FILE_LINE_WIDTH</b> reports the length of the longest line in a file.
</li>
<li>
<b>FILE_PARA_COUNT</b> counts the number of paragraphs in a file.
</li>
<li>
<b>FILE_ROW_COUNT</b> counts the number of row records in a file.
</li>
<li>
<b>FILE_SEQUENCE_DELETE</b> deletes a file sequence.
</li>
<li>
<b>FILE_SEQUENCE_SIZE</b> sizes a file sequence.
</li>
<li>
<b>FILE_WORD_COUNT</b> counts the number of words in a file.
</li>
<li>
<b>FILENAME_DEC</b> decrements a partially numeric file name.
</li>
<li>
<b>FILENAME_EXT_GET</b> determines the "extension" of a file name.
</li>
<li>
<b>FILENAME_EXT_SWAP</b> replaces the current "extension" of a file name.
</li>
<li>
<b>FILENAME_INC</b> increments a partially numeric file name.
</li>
<li>
<b>FILENAME_INC_NOWRAP</b> increments a partially numeric file name.
</li>
<li>
<b>I4_MAX</b> returns the maximum of two I4's.
</li>
<li>
<b>I4_MIN</b> returns the smaller of two I4's.
</li>
<li>
<b>I4_UNIFORM</b> returns a scaled pseudorandom I4.
</li>
<li>
<b>NUMBER_INC</b> increments the integer represented by a string.
</li>
<li>
<b>R4_ABS</b> returns the absolute value of an R4.
</li>
<li>
<b>R4_NINT</b> returns the nearest integer to an R4.
</li>
<li>
<b>R8_NINT</b> returns the nearest integer to an R8.
</li>
<li>
<b>R8_UNIFORM_01</b> returns a unit pseudorandom R8.
</li>
<li>
<b>S_EQI</b> reports whether two strings are equal, ignoring case.
</li>
<li>
<b>S_LEN_TRIM</b> returns the length of a string to the last nonblank.
</li>
<li>
<b>S_LOW</b> lowercases a string.
</li>
<li>
<b>S_REVERSE</b> reverses the characters in a string.
</li>
<li>
<b>S_TO_I4</b> reads an I4 from a string.
</li>
<li>
<b>S_TO_I4VEC</b> reads an I4VEC from a string.
</li>
<li>
<b>S_TO_R8</b> reads an R8 from a string.
</li>
<li>
<b>S_TO_R8VEC</b> reads an R8VEC from a string.
</li>
<li>
<b>S_TO_ROT13</b> "rotates" the characters in a string by 13 positions.
</li>
<li>
<b>S_WORD_COUNT</b> counts the number of "words" in 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 22 November 2011.
</i>
<!-- John Burkardt -->
</body>
</html>