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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 MATLAB library which
handles information in text files.
</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 = "../../m_src/file_increment/file_increment.html">
FILE_INCREMENT</a>,
a MATLAB program which
makes a copy of a file containing an integer array, after incrementing
each entry by a given value.
</p>
<p>
<a href = "../../f_src/file_merge/file_merge.html">
FILE_MERGE</a>,
a FORTRAN90 program which
merges two sorted files.
</p>
<p>
<a href = "../../m_src/file_name_sequence/file_name_sequence.html">
FILE_NAME_SEQUENCE</a>,
a MATLAB program which
demonstrates four ways to generate a sequence of filenames.
</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>
<p>
<a href = "../../cpp_src/wrap2/wrap2.html">
WRAP2</a>,
a C++ program which
wraps long lines in a text file, but which
wraps some lines "early", so as to avoid breaking words.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
Paul Bratley, Bennett Fox, Linus Schrage,<br>
A Guide to Simulation,<br>
Springer Verlag, pages 201-202, 1983.
</li>
<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.
</li>
<li>
Pierre L'Ecuyer,<br>
Random Number Generation,<br>
in Handbook of Simulation,<br>
edited by Jerry Banks,<br>
Wiley Interscience, page 95, 1998.
</li>
<li>
Bennett Fox,<br>
Algorithm 647:
Implementation and Relative Efficiency of Quasirandom
Sequence Generators,<br>
ACM Transactions on Mathematical Software,<br>
Volume 12, Number 4, pages 362-376, 1986.
</li>
<li>
Philip Lewis, Allen Goodman, James Miller,<br>
A Pseudo-Random Number Generator for the System/360,<br>
IBM Systems Journal,<br>
Volume 8, pages 136-143, 1969.
</li>
</ol>
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "ch_cap.m">ch_cap.m</a>,
capitalizes a character;
</li>
<li>
<a href = "ch_eqi.m">ch_eqi.m</a>,
returns true if two characters are equal, ignoring case;
</li>
<li>
<a href = "ch_index_last.m">ch_index_last.m</a>,
returns the index of the last occurrence of a character in a string.
</li>
<li>
<a href = "ch_is_digit.m">ch_is_digit.m</a>,
returns true if a character is a decimal digit;
</li>
<li>
<a href = "ch_low.m">ch_low.m</a>,
lowercases a character;
</li>
<li>
<a href = "ch_to_digit.m">ch_to_digit.m</a>,
converts a character to a decimal digit;
</li>
<li>
<a href = "ch_to_rot13.m">ch_to_rot13.m</a>,
converts a character to its ROT13 equivalent;
</li>
<li>
<a href = "digit_dec.m">digit_dec.m</a>,
decrements a decimal digit;
</li>
<li>
<a href = "digit_inc.m">digit_inc.m</a>,
increments a decimal digit;
</li>
<li>
<a href = "digit_to_ch.m">digit_to_ch.m</a>,
converts a decimal digit to a character;
</li>
<li>
<a href = "file_char_count.m">file_char_count.m</a>,
counts the number of characters in a file;
</li>
<li>
<a href = "file_column_count.m">file_column_count.m</a>,
counts the number of columns in the first line of a file;
</li>
<li>
<a href = "file_delete.m">file_delete.m</a>,
deletes a file;
</li>
<li>
<a href = "file_exist.m">file_exist.m</a>,
is true if a file exists;
</li>
<li>
<a href = "file_line_uniform.m">file_line_uniform.m</a>,
returns a random line from a file;
</li>
<li>
<a href = "file_line_width.m">file_line_width.m</a>,
returns the length of the longest line in a file;
</li>
<li>
<a href = "file_name_dec.m">file_name_dec.m</a>,
"decrements" a partially numeric filename;
</li>
<li>
<a href = "file_name_ext_get.m">file_name_ext_get.m</a>,
gets the extension of a filename;
</li>
<li>
<a href = "file_name_ext_swap.m">file_name_ext_swap.m</a>,
replaces the current extension of a filename;
</li>
<li>
<a href = "filename_inc.m">filename_inc.m</a>,
"increments" a partially numeric filename;
</li>
<li>
<a href = "file_name_inc_nowrap.m">file_name_inc_nowrap.m</a>,
"increments" a partially numeric filename,
and "wrapping" is not allowed;
</li>
<li>
<a href = "file_para_count.m">file_para_count.m</a>,
counts the number of paragraphs in a file;
</li>
<li>
<a href = "file_row_count.m">file_row_count.m</a>,
counts the number of rows in a file;
</li>
<li>
<a href = "file_sequence_delete.m">file_sequence_delete.m</a>,
deletes a file sequence.
</li>
<li>
<a href = "file_sequence_read.m">file_sequence_read.m</a>,
reads the data from a file sequence.
</li>
<li>
<a href = "file_sequence_size.m">file_sequence_size.m</a>,
sizes a file sequence.
</li>
<li>
<a href = "file_tag_check.m">file_tag_check.m</a>,
makes a generalized parenthesis check on the text of a file;
</li>
<li>
<a href = "file_unique.m">file_unique.m</a>,
makes a copy of the unique lines of a sorted file;
</li>
<li>
<a href = "file_word_count.m">file_word_count.m</a>,
counts the number of words in a file;
</li>
<li>
<a href = "i4_uniform_ab.m">i4_uniform_ab.m</a>,
returns a scaled pseudorandom I4;
</li>
<li>
<a href = "number_inc.m">number_inc.m</a>,
increments the integer represented by a string;
</li>
<li>
<a href = "r4_uniform_01.m">r4_uniform_01.m</a>,
returns a unit pseudorandom R4;
</li>
<li>
<a href = "r8_uniform_01.m">r8_uniform_01.m</a>,
returns a unit pseudorandom R8;
</li>
<li>
<a href = "s_adjustl.m">s_adjustl.m</a>,
shifts a string to the left, "squeezing out" the leading blanks.
</li>
<li>
<a href = "s_cat.m">s_cat.m</a>,
concatenates two strings;
</li>
<li>
<a href = "s_eqi.m">s_eqi.m</a>,
is true if two strings are equal, disregarding case;
</li>
<li>
<a href = "s_index.m">s_index.m</a>,
returns the index of the first occurrence of a substring in a string.
</li>
<li>
<a href = "s_len_trim.m">s_len_trim.m</a>,
returns the length of a string to the last nonblank;
</li>
<li>
<a href = "s_low.m">s_low.m</a>,
makes a lowercase copy of a string;
</li>
<li>
<a href = "s_reverse.m">s_reverse.m</a>,
reverses a string;
</li>
<li>
<a href = "s_to_r8.m">s_to_r8.m</a>,
reads an R8 from a string;
</li>
<li>
<a href = "s_to_r8vec.m">s_to_r8vec.m</a>,
reads an R8VEC from a string;
</li>
<li>
<a href = "s_to_rot13.m">s_to_rot13.m</a>,
converts a string to its ROT13 equivalent;
</li>
<li>
<a href = "s_word_count.m">s_word_count.m</a>,
counts the number of "words" in a string;
</li>
<li>
<a href = "timestamp.m">timestamp.m</a>,
prints the HMSDMY date as a timestamp;
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "filum_test.m">filum_test.m</a>,
runs all the tests;
</li>
<li>
<a href = "filum_test_output.txt">filum_test_output.txt</a>,
the output file;
</li>
<li>
<a href = "filum_test02.m">filum_test02.m</a>,
tests FILE_CHAR_COUNT;
</li>
<li>
<a href = "filum_test03.m">filum_test03.m</a>,
tests FILE_COLUMN_COUNT;
</li>
<li>
<a href = "filum_test06.m">filum_test06.m</a>,
tests FILE_EXIST;
</li>
<li>
<a href = "filum_test085.m">filum_test085.m</a>,
tests FILE_LINE_WIDTH;
</li>
<li>
<a href = "filum_test11.m">filum_test11.m</a>,
tests FILE_NAME_DEC;
</li>
<li>
<a href = "filum_test13.m">filum_test13.m</a>,
tests FILE_NAME_EXT_SWAP;
</li>
<li>
<a href = "filum_test14.m">filum_test14.m</a>,
tests FILE_NAME_INC;
</li>
<li>
<a href = "filum_test15.m">filum_test15.m</a>,
tests FILE_NAME_INC;
</li>
<li>
<a href = "filum_test17.m">filum_test17.m</a>,
tests FILE_PARA_COUNT;
</li>
<li>
<a href = "filum_test22.m">filum_test22.m</a>,
tests FILE_ROW_COUNT;
</li>
<li>
<a href = "filum_prb_4by5.txt">filum_prb_4by5.txt</a>,
a file with missing right parentheses;
</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>
<p>
<b>MARCUS_TEST</b> is an example that demonstrates how FILE_NAME_INC
and FILE_NAME_DEC can be used to generate, save, and recover
iterative data;
<ul>
<li>
<a href = "marcus_test.m">marcus_test.m</a>,
the main example routine.
</li>
<li>
<a href = "marcus_test_output.txt">marcus_test_output.txt</a>,
the output from the test;
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../m_src.html">
the MATLAB source codes</a>.
</p>
<hr>
<i>
Last revised on 22 November 2011.
</i>
<!-- John Burkardt -->
</body>
</html>