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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 FORTRAN90 library which
can work with 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>.
</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 = "../../f_src/file_merge/file_merge.html">
FILE_MERGE</a>,
a FORTRAN90 program which
merges two sorted files.
</p>
<p>
<a href = "../../f_src/file_name_sequence/file_name_sequence.html">
FILE_NAME_SEQUENCE</a>,
a FORTRAN90 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/file_row_reverse/file_row_reverse.html">
FILE_ROW_REVERSE</a>,
a FORTRAN90 program which
makes a copy of a file with the lines ("rows") in reverse order.
</p>
<p>
<a href = "../../f_src/file_transpose/file_transpose.html">
FILE_TRANSPOSE</a>,
a FORTRAN90 program which
makes a "transposed" copy of a file, in which the I-th "word" of the J-th line
becomes the J-th word of the I-th line.
</p>
<p>
<a href = "../../f_src/files_multiple/files_multiple.html">
FILES_MULTIPLE</a>,
a FORTRAN90 program which
demonstrates how a program can open multiple output files at one time,
and write data to any one specific file it chooses.
</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 = "filum.f90">filum.f90</a>, the source code;
</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.f90">filum_prb.f90</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 = "integers.txt">integers.txt</a>,
a file containing text and integers.
</li>
<li>
<a href = "story.txt">story.txt</a>,
a file containing a title line and 5 paragraphs of text.
</li>
<li>
<a href = "story_rot13.txt">story_rot13.txt</a>,
the story, encoded by ROT13.
</li>
<li>
<a href = "story_rot26.txt">story_rot26.txt</a>,
the story, decoded by a second application of ROT13.
</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 a case insensitive comparison of two characters for equality.
</li>
<li>
<b>CH_INDEX_LAST</b> is the last occurrence of a character in a string.
</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 character representation of a decimal digit.
</li>
<li>
<b>FILE_ADVANCE_TO_STRING</b> searches ahead in a text file for a string.
</li>
<li>
<b>FILE_APPEND</b> allows a user to append new information to an old file.
</li>
<li>
<b>FILE_CHAR_COUNT</b> counts the number of characters in a file.
</li>
<li>
<b>FILE_COLUMN_COUNT</b> counts the number of columns in the first line of a file.
</li>
<li>
<b>FILE_COLUMN_RANGE</b> determines the minimum and maximum ranges of each column.
</li>
<li>
<b>FILE_COPY</b> makes a copy 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_GET_NEXT_INTEGER</b> returns the next integer from a file.
</li>
<li>
<b>FILE_GET_NEXT_WORD</b> returns the next word and trailing context from a file.
</li>
<li>
<b>FILE_INSERT</b> copies the contents of an input file into an output file.
</li>
<li>
<b>FILE_LINE_GET</b> gets a particular line of a file.
</li>
<li>
<b>FILE_LINE_UNIFORM</b> returns a random line from a file.
</li>
<li>
<b>FILE_LINE_WIDTH</b> returns the length of the longest line in a file.
</li>
<li>
<b>FILE_LINES_UNIFORM</b> selects N random lines from a file.
</li>
<li>
<b>FILE_MERGE</b> merges two sorted files into a third.
</li>
<li>
<b>FILE_NAME_APPEND</b> appends a string to a filename, before the extension.
</li>
<li>
<b>FILE_NAME_DEC</b> decrements a partially numeric file name.
</li>
<li>
<b>FILE_NAME_EXT_GET</b> determines the "extension" of a file name.
</li>
<li>
<b>FILE_NAME_EXT_SWAP</b> replaces the current "extension" of a file name.
</li>
<li>
<b>FILE_NAME_INC</b> increments a partially numeric filename.
</li>
<li>
<b>FILE_NAME_INC_NOWRAP</b> increments a partially numeric filename.
</li>
<li>
<b>FILE_IS_OPEN</b> reports whether a file (specified by filename) is open.
</li>
<li>
<b>FILE_PARA_COUNT</b> counts the number of paragraphs in a file.
</li>
<li>
<b>FILE_PAREN_CHECK</b> checks a file for generalized parenthesis errors.
</li>
<li>
<b>FILE_PRINT</b> prints the contents of a text file.
</li>
<li>
<b>FILE_RENAME</b> renames a file.
</li>
<li>
<b>FILE_REVERSE_COLUMNS</b> makes a copy of a file with each lines reversed.
</li>
<li>
<b>FILE_REVERSE_ROWS</b> makes a copy of a file with the lines in reverse order.
</li>
<li>
<b>FILE_ROT13</b> makes a ROT13-encoded copy of a file.
</li>
<li>
<b>FILE_ROW_COUNT</b> counts the number of rows 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_TAG_CHECK</b> checks a file for generalized parenthesis errors.
</li>
<li>
<b>FILE_UNIQUE_LINES</b> makes a copy of the unique lines of a sorted file.
</li>
<li>
<b>FILE_WORD_COUNT</b> counts the number of words in a file.
</li>
<li>
<b>GET_UNIT</b> returns a free FORTRAN unit number.
</li>
<li>
<b>I4_UNIFORM</b> returns a scaled pseudorandom I4.
</li>
<li>
<b>LEN_NONNULL</b> returns the length of a string up to the last non-null character.
</li>
<li>
<b>NUMBER_INC</b> increments the integer represented by a string.
</li>
<li>
<b>R8_UNIFORM_01</b> returns a unit pseudorandom R8.
</li>
<li>
<b>S_EQI</b> is a case insensitive comparison of two strings for equality.
</li>
<li>
<b>S_LOW</b> replaces all uppercase letters by lowercase ones.
</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_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 alphabetical 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 = "../f_src.html">
the FORTRAN90 source codes</a>.
</p>
<hr>
<i>
Last revised on 21 November 2011.
</i>
<!-- John Burkardt -->
</body>
</html>