NAME

HTML::TextToHTML - convert plain text file to HTML.

VERSION

This describes version 2.51 of HTML::TextToHTML.

SYNOPSIS

  From the command line:

    txt2html I<arguments>

  From Scripts:

    use HTML::TextToHTML;
 
    # create a new object
    my $conv = new HTML::TextToHTML();

    # convert a file
    $conv->txt2html(infile=>[$text_file],
                     outfile=>$html_file,
                     title=>"Wonderful Things",
                     mail=>1,
      ]);

    # reset arguments
    $conv->args(infile=>[], mail=>0);

    # convert a string
    $newstring = $conv->process_chunk($mystring)

DESCRIPTION

HTML::TextToHTML converts plain text files to HTML. The txt2html script uses this module to do the same from the command-line.

It supports headings, tables, lists, simple character markup, and hyperlinking, and is highly customizable. It recognizes some of the apparent structure of the source document (mostly whitespace and typographic layout), and attempts to mark that structure explicitly using HTML. The purpose for this tool is to provide an easier way of converting existing text documents to HTML format, giving something nicer than just whapping the text into a big PRE block.

History

The original txt2html script was written by Seth Golub (see http://www.aigeek.com/txt2html/), and converted to a perl module by Kathryn Andersen (see http://www.katspace.com/tools/text_to_html/) and made into a sourceforge project by Sun Tong (see http://sourceforge.net/projects/txt2html/). Earlier versions of the HTML::TextToHTML module called the included script texthyper so as not to clash with the original txt2html script, but now the projects have all been merged.

OPTIONS

All arguments can be set when the object is created, and further options can be set when calling the actual txt2html method. Arguments to methods can take a hash of arguments.

Note that all option-names must match exactly -- no abbreviations are allowed. The argument-keys are expected to have values matching those required for that argument -- whether that be a boolean, a string, a reference to an array or a reference to a hash. These will replace any value for that argument that might have been there before.

append_file

    append_file=>I<filename>

If you want something appended by default, put the filename here. The appended text will not be processed at all, so make sure it's plain text or correct HTML. i.e. do not have things like: Mary Andersen <kitty@example.com> but instead, have: Mary Andersen <kitty@example.com>

(default: nothing)

append_head

    append_head=>I<filename>

If you want something appended to the head by default, put the filename here. The appended text will not be processed at all, so make sure it's plain text or correct HTML. i.e. do not have things like: Mary Andersen <kitty@example.com> but instead, have: Mary Andersen <kitty@example.com>

(default: nothing)

body_deco

    body_deco=>I<string>

Body decoration string: a string to be added to the BODY tag so that one can set attributes to the BODY (such as class, style, bgcolor etc) For example, "class='withimage'".

bold_delimiter

    bold_delimiter=>I<string>

This defines what character (or string) is taken to be the delimiter of text which is to be interpreted as bold (that is, to be given a STRONG tag). If this is empty, then no bolding of text will be done. (default: #)

bullets

    bullets=>I<string>

This defines what single characters are taken to be "bullet" characters for unordered lists. Note that because this is used as a character class, if you use '-' it must come first. (default:-=o*\267)

bullets_ordered

    bullets_ordered=>I<string>

This defines what single characters are taken to be "bullet" placeholder characters for ordered lists. Ordered lists are normally marked by a number or letter followed by '.' or ')' or ']' or ':'. If an ordered bullet is used, then it simply indicates that this is an ordered list, without giving explicit numbers.

Note that because this is used as a character class, if you use '-' it must come first. (default:nothing)

caps_tag

    caps_tag=>I<tag>

Tag to put around all-caps lines (default: STRONG) If an empty tag is given, then no tag will be put around all-caps lines.

custom_heading_regexp

    custom_heading_regexp=>\@custom_headings

Add patterns for headings. Header levels are assigned by regexp in the order seen in the input text. When a line matches a custom header regexp, it is tagged as a header. If it's the first time that particular regexp has matched, the next available header level is associated with it and applied to the line. Any later matches of that regexp will use the same header level. Therefore, if you want to match numbered header lines, you could use something like this:

    my @custom_headings = ('^ *\d+\. \w+',
                           '^ *\d+\.\d+\. \w+',
                           '^ *\d+\.\d+\.\d+\. \w+');

    ...
        custom_heading_regexp=>\@custom_headings,
    ...

Then lines like

                " 1. Examples "
                " 1.1. Things"
            and " 4.2.5. Cold Fusion"

Would be marked as H1, H2, and H3 (assuming they were found in that order, and that no other header styles were encountered). If you prefer that the first one specified always be H1, the second always be H2, the third H3, etc, then use the "explicit_headings" option.

This expects a reference to an array of strings.

(default: none)

default_link_dict

    default_link_dict=>I<filename>

The name of the default "user" link dictionary. (default: "$ENV{'HOME'}/.txt2html.dict" -- this is the same as for the txt2html script. If there is no $ENV{HOME} then it is just '.txt2html.dict')

demoronize

    demoronize=>1

Convert Microsoft-generated character codes that are non-ISO codes into something more reasonable. (default:true)

doctype

    doctype=>I<doctype>

This gets put in the DOCTYPE field at the top of the document, unless it's empty.

Default : '-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd'

If xhtml is true, the contents of this is ignored, unless it's empty, in which case no DOCTYPE declaration is output.

eight_bit_clean

    eight_bit_clean=>1

If false, convert Latin-1 characters to HTML entities. If true, this conversion is disabled; also "demoronize" is set to false, since this also changes 8-bit characters. (default: false)

escape_HTML_chars

    escape_HTML_chars=>1

turn & < > into & > < (default: true)

explicit_headings

    explicit_headings=>1

Don't try to find any headings except the ones specified in the --custom_heading_regexp option. Also, the custom headings will not be assigned levels in the order they are encountered in the document, but in the order they are specified on the custom_heading_regexp option. (default: false)

extract

    extract=>1

Extract Mode; don't put HTML headers or footers on the result, just the plain HTML (thus making the result suitable for inserting into another document (or as part of the output of a CGI script). (default: false)

hrule_min

    hrule_min=>I<n>

Min number of ---s for an HRule. (default: 4)

indent_width

    indent_width=>I<n>

Indents this many spaces for each level of a list. (default: 2)

indent_par_break

    indent_par_break=>1

Treat paragraphs marked solely by indents as breaks with indents. That is, instead of taking a three-space indent as a new paragraph, put in a <BR> and three non-breaking spaces instead. (see also --preserve_indent) (default: false)

infile

    infile=>\@my_files
    infile=>['chapter1.txt', 'chapter2.txt']

The name of the input file(s). This expects a reference to an array of filenames.

The special filename '-' designates STDIN.

DEBUGGING

There are global variables for setting types and levels of debugging. These should only be used by developers.

$HTML::TextToHTML::Debug

$HTML::TextToHTML::Debug = 1;

Enable copious debugging output. (default: false)

$HTML::TextToHTML::DictDebug

    $HTML::TextToHTML::DictDebug = I<n>;

Debug mode for link dictionaries. Bitwise-Or what you want to see:

          1: The parsing of the dictionary
          2: The code that will make the links
          4: When each rule matches something
          8: When each tag is created

(default: 0)

METHODS

new

    $conv = new HTML::TextToHTML()

    $conv = new HTML::TextToHTML(titlefirst=>1,
        ...
    );

Create a new object with new. If arguments are given, these arguments will be used in invocations of other methods.

See "OPTIONS" for the possible values of the arguments.

args

    $conv->args(short_line_length=>60,
        titlefirst=>1,
        ....
    );

Updates the current arguments/options of the HTML::TextToHTML object. Takes hash of arguments, which will be used in invocations of other methods. See "OPTIONS" for the possible values of the arguments.

process_chunk

$newstring = $conv->process_chunk($mystring);

Convert a string to a HTML fragment. This assumes that this string is at the least, a single paragraph, but it can contain more than that. This returns the processed string. If you want to pass arguments to alter the behaviour of this conversion, you need to do that earlier, either when you create the object, or with the "args" method.

    $newstring = $conv->process_chunk($mystring,
                            close_tags=>0);

If there are open tags (such as lists) in the input string, process_chunk will automatically close them, unless you specify not to, with the close_tags option.

    $newstring = $conv->process_chunk($mystring,
                            is_fragment=>1);

If you want this string to be treated as a fragment, and not assumed to be a paragraph, set is_fragment to true. If there is more than one paragraph in the string (ie it contains blank lines) then this option will be ignored.

process_para

$newstring = $conv->process_para($mystring);

Convert a string to a HTML fragment. This assumes that this string is at the most a single paragraph, with no blank lines in it. If you don't know whether your string will contain blank lines or not, use the "process_chunk" method instead.

This returns the processed string. If you want to pass arguments to alter the behaviour of this conversion, you need to do that earlier, either when you create the object, or with the "args" method.

    $newstring = $conv->process_para($mystring,
                            close_tags=>0);

If there are open tags (such as lists) in the input string, process_para will automatically close them, unless you specify not to, with the close_tags option.

    $newstring = $conv->process_para($mystring,
                            is_fragment=>1);

If you want this string to be treated as a fragment, and not assumed to be a paragraph, set is_fragment to true.

txt2html

    $conv->txt2html(%args);

Convert a text file to HTML. Takes a hash of arguments. See "OPTIONS" for the possible values of the arguments. Arguments which have already been set with new or args will remain as they are, unless they are overridden.

PRIVATE METHODS

These are methods used internally, only of interest to developers.

init_our_data

$self->init_our_data();

Initializes the internal object data.

deal_with_options

$self->deal_with_options();

do extra processing related to particular options

escape

$newtext = escape($text);

Escape & < and >

demoronize_char

$newtext = demoronize_char($text);

Convert Microsoft character entities into characters.

Added by Alan Jackson, alan at ajackson dot org, and based on the demoronize script by John Walker, http://www.fourmilab.ch/

demoronize_code

$newtext = demoronize_code($text);

convert Microsoft character entities into HTML code

get_tag

$tag = $self->get_tag($in_tag);

$tag = $self->get_tag($in_tag, tag_type=>TAG_START, inside_tag=>'');

output the tag wanted (add the <> and the / if necessary) - output in lower or upper case - do tag-related processing options: tag_type=>TAG_START | tag_type=>TAG_END | tag_type=>TAG_EMPTY (default start) inside_tag=>string (default empty)

close_tag

$tag = $self->close_tag($in_tag);

close the open tag

hrule

   $self->hrule(para_lines_ref=>$para_lines,
             para_action_ref=>$para_action,
             ind=>0);

Deal with horizontal rules.

shortline

    $self->shortline(line_ref=>$line_ref,
                     line_action_ref=>$line_action_ref,
                     prev_ref=>$prev_ref,
                     prev_action_ref=>$prev_action_ref,
                     prev_line_len=>$prev_line_len);

Deal with short lines.

is_mailheader

    if ($self->is_mailheader(rows_ref=>$rows_ref))
    {
        ...
    }

Is this a mailheader line?

mailheader

    $self->mailheader(rows_ref=>$rows_ref);

Deal with a mailheader.

mailquote

    $self->mailquote(line_ref=>$line_ref,
                     line_action_ref=>$line_action_ref,
                     prev_ref=>$prev_ref,
                     prev_action_ref=>$prev_action_ref,
                     next_ref=>$next_ref);

Deal with quoted mail.

subtract_modes

    $newvector = subtract_modes($vector, $mask);

Subtracts modes listed in $mask from $vector.

paragraph

    $self->paragraph(line_ref=>$line_ref,
                     line_action_ref=>$line_action_ref,
                     prev_ref=>$prev_ref,
                     prev_action_ref=>$prev_action_ref,
                     line_indent=>$line_indent,
                     prev_indent=>$prev_indent,
                     is_fragment=>$is_fragment,
                     ind=>$ind);

Detect paragraph indentation.

listprefix

    ($prefix, $number, $rawprefix, $term) = $self->listprefix($line);

Detect and parse a list item.

startlist

    $self->startlist(prefix=>$prefix,
                     number=>0,
                     rawprefix=>$rawprefix,
                     term=>$term,
                     para_lines_ref=>$para_lines_ref,
                     para_action_ref=>$para_action_ref,
                     ind=>0,
                     prev_ref=>$prev_ref,
                     total_prefix=>$total_prefix);

Start a list.

endlist

    $self->endlist(num_lists=>0,
        prev_ref=>$prev_ref,
        line_action_ref=>$line_action_ref);

End N lists

continuelist

    $self->continuelist(para_lines_ref=>$para_lines_ref,
                        para_action_ref=>$para_action_ref,
                        ind=>0,
                        term=>$term);

Continue a list.

liststuff

    $self->liststuff(para_lines_ref=>$para_lines_ref,
                     para_action_ref=>$para_action_ref,
                     para_line_indent_ref=>$para_line_indent_ref,
                     ind=>0,
                     prev_ref=>$prev_ref);

Process a list (higher-level method).

get_table_type

    $table_type = $self->get_table_type(rows_ref=>$rows_ref,
                                        para_len=>0);

Figure out the table type of this table, if any

is_aligned_table

    if ($self->is_aligned_table(rows_ref=>$rows_ref, para_len=>0))
    {
        ...
    }

Check if the given paragraph-array is an aligned table

is_pgsql_table

    if ($self->is_pgsql_table(rows_ref=>$rows_ref, para_len=>0))
    {
        ...
    }

Check if the given paragraph-array is a Postgresql table (the ascii format produced by Postgresql)

A PGSQL table can start with an optional table-caption,

    then it has a row of column headings separated by |
    then it has a row of ------+-----
    then it has one or more rows of column values separated by |
    then it has a row-count (N rows)

is_border_table

    if ($self->is_border_table(rows_ref=>$rows_ref, para_len=>0))
    {
        ...
    }

Check if the given paragraph-array is a Border table.

A BORDER table can start with an optional table-caption,

    then it has a row of +------+-----+
    then it has a row of column headings separated by |
    then it has a row of +------+-----+
    then it has one or more rows of column values separated by |
    then it has a row of +------+-----+

is_delim_table

    if ($self->is_delim_table(rows_ref=>$rows_ref, para_len=>0))
    {
        ...
    }

Check if the given paragraph-array is a Delimited table.

A DELIM table can start with an optional table-caption, then it has at least two rows which start and end and are punctuated by a non-alphanumeric delimiter.

    | val1 | val2 |
    | val3 | val4 |

tablestuff

    $self->tablestuff(table_type=>0,
                      rows_ref=>$rows_ref,
                      para_len=>0);

Process a table.

make_aligned_table

    $self->make_aligned_table(rows_ref=>$rows_ref,
                              para_len=>0);

Make an Aligned table.

make_pgsql_table

    $self->make_pgsql_table(rows_ref=>$rows_ref,
                              para_len=>0);

Make a PGSQL table.

make_border_table

    $self->make_border_table(rows_ref=>$rows_ref,
                             para_len=>0);

Make a BORDER table.

make_delim_table

    $self->make_delim_table(rows_ref=>$rows_ref,
                            para_len=>0);

Make a Delimited table.

is_preformatted

    if ($self->is_preformatted($line))
    {
        ...
    }

Returns true if the passed string is considered to be preformatted.

split_end_explicit_preformat

    $front = $self->split_end_explicit_preformat(para_ref=>$para_ref);

Modifies the given string, and returns the front preformatted part.

endpreformat

    $self->endpreformat(para_lines_ref=>$para_lines_ref,
                        para_action_ref=>$para_action_ref,
                        ind=>0,
                        prev_ref=>$prev_ref);

End a preformatted section.

preformat

    $self->preformat(mode_ref=>$mode_ref,
                     line_ref=>$line_ref,
                     line_action_ref=>$line_action_ref,
                     prev_ref=>$prev_ref,
                     next_ref=>$next_ref,
                     prev_action_ref);

Detect and process a preformatted section.

make_new_anchor

    $anchor = $self->make_new_anchor($heading_level);

Make a new anchor.

anchor_mail

    $self->anchor_mail($line_ref);

Make an anchor for a mail section.

anchor_heading

    $self->anchor_heading($heading_level, $line_ref);

Make an anchor for a heading.

heading_level

    $self->heading_level($style);

Add a new heading style if this is a new heading style.

is_ul_list_line

    if ($self->is_ul_list_line($line))
    {
        ...
    }

Tests if this line starts a UL list item.

is_heading

    if ($self->is_heading(line_ref=>$line_ref, next_ref=>$next_ref))
    {
        ...
    }

Tests if this line is a heading. Needs to take account of the next line, because a standard heading is defined by "underlining" the text of the heading.

heading

    $self->heading(line_ref=>$line_ref,
        next_ref=>$next_ref);

Make a heading. Assumes is_heading is true.

is_custom_heading

    if ($self->is_custom_heading($line))
    {
        ...
    }

Check if the given line matches a custom heading.

custom_heading

    $self->custom_heading(line_ref=>$line_ref);

Make a custom heading. Assumes is_custom_heading is true.

unhyphenate_para

    $self->unhyphenate_para($para_ref);

Join up hyphenated words that are split across lines.

tagline

    $self->tagline($tag, $line_ref);

Put the given tag around the given line.

iscaps

    if ($self->iscaps($line))
    {
        ...
    }

Check if a line is all capitals.

caps

    $self->caps(line_ref=>$line_ref,
                line_action_ref=>$line_action_ref);

Detect and deal with an all-caps line.

do_delim

    $self->do_delim(line_ref=>$line_ref,
                    line_action_ref=>$line_action_ref,
                    delim=>'*',
                    tag=>'STRONG');

Deal with a line which has words delimited by the given delimiter; this is used to deal with italics, bold and underline formatting.

glob2regexp

    $regexp = glob2regexp($glob);

Convert very simple globs to regexps

add_regexp_to_links_table

    $self->add_regexp_to_links_table(label=>$label,
                                     pattern=>$pattern,
                                     url=>$url,
                                     switches=>$switches);

Add the given regexp "link definition" to the links table.

add_literal_to_links_table

    $self->add_literal_to_links_table(label=>$label,
                                      pattern=>$pattern,
                                      url=>$url,
                                      switches=>$switches);

Add the given literal "link definition" to the links table.

add_glob_to_links_table

    $self->add_glob_to_links_table(label=>$label,
                                   pattern=>$pattern,
                                   url=>$url,
                                   switches=>$switches);

Add the given glob "link definition" to the links table.

parse_dict

    $self->parse_dict($dictfile, $dict);

Parse the dictionary file. (see also load_dictionary_links, for things that were stripped)

setup_dict_checking

    $self->setup_dict_checking();

Set up the dictionary checking.

in_link_context

    if ($self->in_link_context($match, $before))
    {
        ...
    }

Check if we are inside a link (<a ...>); certain kinds of substitution are not allowed here.

apply_links

    $self->apply_links(para_ref=>$para_ref,
                       para_action_ref=>$para_action_ref);

Apply links and formatting to this paragraph.

check_dictionary_links

    $self->check_dictionary_links(line_ref=>$line_ref,
                                  line_action_ref=>$line_action_ref);

Check (and alter if need be) the bits in this line matching the patterns in the link dictionary.

load_dictionary_links

    $self->load_dictionary_links();

Load the dictionary links.

do_file_start

    $self->do_file_start($outhandle, $para);

Extra stuff needed for the beginning: HTML headers, and prepending a file if desired.

do_init_call

    $self->do_init_call();

Certain things, like reading link dictionaries, need to be done only once.

FILE FORMATS

There are two files which are used which can affect the outcome of the conversion. One is the link dictionary, which contains patterns (of how to recognise http links and other things) and how to convert them. The other is, naturally, the format of the input file itself.

Link Dictionary

A link dictionary file contains patterns to match, and what to convert them to. It is called a "link" dictionary because it was intended to be something which defined what a href link was, but it can be used for more than that. However, if you wish to define your own links, it is strongly advised to read up on regular expressions (regexes) because this relies heavily on them.

The file consists of comments (which are lines starting with #) and blank lines, and link entries. Each entry consists of a regular expression, a -> separator (with optional flags), and a link "result".

In the simplest case, with no flags, the regular expression defines the pattern to look for, and the result says what part of the regular expression is the actual link, and the link which is generated has the href as the link, and the whole matched pattern as the visible part of the link. The first character of the regular expression is taken to be the separator for the regex, so one could either use the traditional / separator, or something else such as | (which can be helpful with URLs which are full of / characters).

So, for example, an ftp URL might be defined as:

    |ftp:[\w/\.:+\-]+|      -> $&

This takes the whole pattern as the href, and the resultant link has the same thing in the href as in the contents of the anchor.

But sometimes the href isn't the whole pattern.

    /&lt;URL:\s*(\S+?)\s*&gt;/ --> $1

With the above regex, a () grouping marks the first subexpression, which is represented as $1 (rather than $& the whole expression). This entry matches a URL which was marked explicity as a URL with the pattern <URL:foo> (note the < is shown as the entity, not the actual character. This is because by the time the links dictionary is checked, all such things have already been converted to their HTML entity forms, unless, of course, the escape_HTML_chars option was turned off) This would give us a link in the form <A HREF="foo"><URL:foo></A>

The h flag

However, if we want more control over the way the link is constructed, we can construct it ourself. If one gives the h flag, then the "result" part of the entry is taken not to contain the href part of the link, but the whole link.

For example, the entry:

    /&lt;URL:\s*(\S+?)\s*&gt;/ -h-> <A HREF="$1">$1</A>

will take <URL:foo> and give us <A HREF="foo">foo</A>

However, this is a very powerful mechanism, because it can be used to construct custom tags which aren't links at all. For example, to flag *italicised words* the following entry will surround the words with EM tags.

    /\B\*([a-z][a-z -]*[a-z])\*\B/ -hi-> <EM>$1</EM>

The i flag

This turns on ignore case in the pattern matching.

The e flag

This turns on execute in the pattern substitution. This really only makes sense if h is turned on too. In that case, the "result" part of the entry is taken as perl code to be executed, and the result of that code is what replaces the pattern.

The o flag

This marks the entry as a once-only link. This will convert the first instance of a matching pattern, and ignore any others further on.

For example, the following pattern will take the first mention of HTML::TextToHTML and convert it to a link to the module's home page.

    "HTML::TextToHTML"  -io-> http://www.katspace.com/tools/text_to_html/

Input File Format

For the most part, this module tries to use intuitive conventions for determining the structure of the text input. Unordered lists are marked by bullets; ordered lists are marked by numbers or letters; in either case, an increase in indentation marks a sub-list contained in the outer list.

Headers (apart from custom headers) are distinguished by "underlines" underneath them; headers in all-capitals are distinguished from those in mixed case. All headers, both normal and custom headers, are expected to start at the first line in a "paragraph".

In other words, the following is a header:

    I am Head Man
    -------------

But the following does not have a header:

    I am not a head Man, man
    I am Head Man
    -------------

Tables require a more rigid convention. A table must be marked as a separate paragraph, that is, it must be surrounded by blank lines. Tables come in different types. For a table to be parsed, its --table_type option must be on, and the --make_tables option must be true.

ALIGN Table Type

Columns must be separated by two or more spaces (this prevents accidental incorrect recognition of a paragraph where interword spaces happen to line up). If there are two or more rows in a paragraph and all rows share the same set of (two or more) columns, the paragraph is assumed to be a table. For example

    -e  File exists.
    -z  File has zero size.
    -s  File has nonzero size (returns size).

becomes

    <table>
    <tr><td>-e</td><td>File exists.</td></tr>
    <tr><td>-z</td><td>File has zero size.</td></tr>
    <tr><td>-s</td><td>File has nonzero size (returns size).</td></tr>
    </table>

This guesses for each column whether it is intended to be left, centre or right aligned.

BORDER Table Type

This table type has nice borders around it, and will be rendered with a border, like so:

    +---------+---------+
    | Column1 | Column2 |
    +---------+---------+
    | val1    | val2    |
    | val3    | val3    |
    +---------+---------+

The above becomes

    <table border="1">
    <thead><tr><th>Column1</th><th>Column2</th></tr></thead>
    <tbody>
    <tr><td>val1</td><td>val2</td></tr>
    <tr><td>val3</td><td>val3</td></tr>
    </tbody>
    </table>

It can also have an optional caption at the start.

         My Caption
    +---------+---------+
    | Column1 | Column2 |
    +---------+---------+
    | val1    | val2    |
    | val3    | val3    |
    +---------+---------+

PGSQL Table Type

This format of table is what one gets from the output of a Postgresql query.

     Column1 | Column2
    ---------+---------
     val1    | val2
     val3    | val3
    (2 rows)

This can also have an optional caption at the start. This table is also rendered with a border and table-headers like the BORDER type.

DELIM Table Type

This table type is delimited by non-alphanumeric characters, and has to have at least two rows and two columns before it's recognised as a table.

This one is delimited by the '| character:

    | val1  | val2  |
    | val3  | val3  |

But one can use almost any suitable character such as : # $ % + and so on. This is clever enough to figure out what you are using as the delimiter if you have your data set up like a table. Note that the line has to both begin and end with the delimiter, as well as using it to separate values.

This can also have an optional caption at the start.

EXAMPLES

    use HTML::TextToHTML;

Create a new object

    my $conv = new HTML::TextToHTML();

    my $conv = new HTML::TextToHTML(title=>"Wonderful Things",
                            default_link_dict=>$my_link_file,
      );

Add further arguments

    $conv->args(short_line_length=>60,
               preformat_trigger_lines=>4,
               caps_tag=>"strong",
      );

Convert a file

    $conv->txt2html(infile=>[$text_file],
                     outfile=>$html_file,
                     title=>"Wonderful Things",
                     mail=>1
      );

Make a pipleline

    open(IN, "ls |") or die "could not open!";
    $conv->txt2html(inhandle=>[\*IN],
                     outfile=>'-',
      );

NOTES

•: If the underline used to mark a header is off by more than 1, then that part of the text will not be picked up as a header unless you change the value of --underline_length_tolerance and/or --underline_offset_tolerance. People tend to forget this.

REQUIRES

HTML::TextToHTML requires Perl 5.8.1 or later.

For installation, it needs:

    Module::Build

The txt2html script needs:

    Getopt::Long
    Getopt::ArgvFile
    Pod::Usage
    File::Basename

For testing, it also needs:

    Test::More

For debugging, it also needs:

    YAML::Syck

INSTALLATION

Make sure you have the dependencies installed first! (see REQUIRES above)

Some of those modules come standard with more recent versions of perl, but I thought I'd mention them anyway, just in case you may not have them.

If you don't know how to install these, try using the CPAN module, an easy way of auto-installing modules from the Comprehensive Perl Archive Network, where the above modules reside. Do "perldoc perlmodinstall" or "perldoc CPAN" for more information.

To install this module type the following:

   perl Build.PL
   ./Build
   ./Build test
   ./Build install

Or, if you're on a platform (like DOS or Windows) that doesn't like the "./" notation, you can do this:

   perl Build.PL
   perl Build
   perl Build test
   perl Build install

In order to install somewhere other than the default, such as in a directory under your home directory, like "/home/fred/perl" go

   perl Build.PL --install_base /home/fred/perl

as the first step instead.

This will install the files underneath /home/fred/perl.

You will then need to make sure that you alter the PERL5LIB variable to find the modules, and the PATH variable to find the script.

Therefore you will need to change: your path, to include /home/fred/perl/script (where the script will be)

        PATH=/home/fred/perl/script:${PATH}

the PERL5LIB variable to add /home/fred/perl/lib

        PERL5LIB=/home/fred/perl/lib:${PERL5LIB}

Note that the system links dictionary will be installed as "/home/fred/perl/share/txt2html/txt2html.dict"

If you want to install in a temporary install directory (such as if you are building a package) then instead of going

   perl Build install

   perl Build install destdir=/my/temp/dir

and it will be installed there, with a directory structure under /my/temp/dir the same as it would be if it were installed plain. Note that this is NOT the same as setting --install_base, because certain things are done at build-time which use the install_base info.

See "perldoc perlrun" for more information on PERL5LIB, and see "perldoc Module::Build" for more information on installation options.

BUGS

Tell me about them.

AUTHOR

    Kathryn Andersen (RUBYKAT)
    perlkat AT katspace dot com
    http//www.katspace.com/

based on txt2html by Seth Golub

COPYRIGHT AND LICENCE

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.