Provided by: tidy_5.2.0-2_amd64 bug

NAME

       tidy - check, correct, and pretty-print HTML(5) files

SYNOPSIS

       tidy [option ...] [file ...] [option ...] [file ...]

DESCRIPTION

       Tidy reads HTML, XHTML, and XML files and writes cleaned-up markup.  For HTML variants, it
       detects, reports, and corrects many common coding errors and strives to produce visually
       equivalent markup that is both conformant to the HTML specifications and that works in
       most browsers.

       A common use of Tidy is to convert plain HTML to XHTML.  For generic XML files, Tidy is
       limited to correcting basic well-formedness errors and pretty printing.

       If no input file is specified, Tidy reads the standard input.  If no output file is
       specified, Tidy writes the tidied markup to the standard output.  If no error file is
       specified, Tidy writes messages to the standard error.  For command line options that
       expect a numerical argument, a default is assumed if no meaningful value can be found.

OPTIONS

   File manipulation
       -output <%s>, -o <%s>
              write output to the specified <file> (output-file: <%s>)

       -config <%s>
              set configuration options from the specified <file>

       -file <%s>, -f <%s>
              write errors and warnings to the specified <file> (error-file: <%s>)

       -modify, -m
              modify the original input files (write-back: yes)

   Processing directives
       -indent, -i
              indent element content (indent: auto)

       -wrap <%s>, -w <%s>
              wrap text at the specified <column>. 0 is assumed if <column> is missing. When this
              option is omitted, the default of the configuration option 'wrap' applies.  (wrap:
              <%s>)

       -upper, -u
              force tags to upper case (uppercase-tags: yes)

       -clean, -c
              replace FONT, NOBR and CENTER tags with CSS (clean: yes)

       -bare, -b
              strip out smart quotes and em dashes, etc.  (bare: yes)

       -gdoc, -g
              produce clean version of html exported by Google Docs (gdoc: yes)

       -numeric, -n
              output numeric rather than named entities (numeric-entities: yes)

       -errors, -e
              show only errors and warnings (markup: no)

       -quiet, -q
              suppress nonessential output (quiet: yes)

       -omit  omit optional start tags and end tags (omit-optional-tags: yes)

       -xml   specify the input is well formed XML (input-xml: yes)

       -asxml, -asxhtml
              convert HTML to well formed XHTML (output-xhtml: yes)

       -ashtml
              force XHTML to well formed HTML (output-html: yes)

       -access <%s>
              do additional accessibility checks (<level> = 0, 1, 2, 3). 0 is assumed if <level>
              is missing.  (accessibility-check: <%s>)

   Character encodings
       -raw   output values above 127 without conversion to entities

       -ascii use ISO-8859-1 for input, US-ASCII for output

       -latin0
              use ISO-8859-15 for input, US-ASCII for output

       -latin1
              use ISO-8859-1 for both input and output

       -iso2022
              use ISO-2022 for both input and output

       -utf8  use UTF-8 for both input and output

       -mac   use MacRoman for input, US-ASCII for output

       -win1252
              use Windows-1252 for input, US-ASCII for output

       -ibm858
              use IBM-858 (CP850+Euro) for input, US-ASCII for output

       -utf16le
              use UTF-16LE for both input and output

       -utf16be
              use UTF-16BE for both input and output

       -utf16 use UTF-16 for both input and output

       -big5  use Big5 for both input and output

       -shiftjis
              use Shift_JIS for both input and output

   Miscellaneous
       -version, -v
              show the version of Tidy

       -help, -h, -?
              list the command line options

       -help-config
              list all configuration options

       -show-config
              list the current configuration settings

       -help-option <%s>
              show a description of the <option>

       -language <%s>
              set Tidy's output language to <lang>. Specify '-language help' for more help. Use
              before output-causing arguments to ensure the language takes effect, e.g.,`tidy
              -lang es -lang help`.  (language: <%s>)

   XML
       -xml-help
              list the command line options in XML format

       -xml-config
              list all configuration options in XML format

       -xml-strings
              output all of Tidy's strings in XML format

       -xml-error-strings
              output error constants and strings in XML format

       -xml-options-strings
              output option descriptions in XML format

USAGE

       Use --optionX valueX for the detailed configuration option "optionX" with argument
       "valueX".  See also below under Detailed Configuration Options as to how to conveniently
       group all such options in a single config file.

       Input/Output default to stdin/stdout respectively. Single letter options apart from -f and
       -o may be combined as in:

          tidy -f errs.txt -imu foo.html

ENVIRONMENT

       HTML_TIDY
              Name of the default configuration file.  This should be an absolute path, since you
              will probably invoke tidy from different directories.  The value of HTML_TIDY will
              be parsed after the compiled-in default (defined with -DTIDY_CONFIG_FILE), but
              before any of the files specified using -config.

EXIT STATUS

       0      All input files were processed successfully.

       1      There were warnings.

       2      There were errors.

______________________________


DETAILED CONFIGURATION OPTIONS

       This section describes the Detailed (i.e., "expanded") Options, which may be specified by
       preceding each option with -- at the command line, followed by its desired value, OR by
       placing the options and values in a configuration file, and telling tidy to read that file
       with the -config standard option.

SYNOPSIS

       tidy --option1 value1 --option2 value2 [standard options ...]
       tidy -config config-file [standard options ...]

WARNING

       The options detailed here do not include the "standard" command-line options (i.e., those
       preceded by a single '-') described above in the first section of this man page.

DESCRIPTION

       A list of options for configuring the behavior of Tidy, which can be passed either on the
       command line, or specified in a configuration file.

       A Tidy configuration file is simply a text file, where each option is listed on a separate
       line in the form

          option1: value1
          option2: value2
          etc.

       The permissible values for a given option depend on the option's Type.  There are five
       types: Boolean, AutoBool, DocType, Enum, and String. Boolean types allow any of yes/no,
       y/n, true/false, t/f, 1/0.  AutoBools allow auto in addition to the values allowed by
       Booleans.  Integer types take non-negative integers.  String types generally have no
       defaults, and you should provide them in non-quoted form (unless you wish the output to
       contain the literal quotes).

       Enum, Encoding, and DocType "types" have a fixed repertoire of items; consult the
       Example[s] provided below for the option[s] in question.

       You only need to provide options and values for those whose defaults you wish to override,
       although you may wish to include some already-defaulted options and values for the sake of
       documentation and explicitness.

       Here is a sample config file, with at least one example of each of the five Types:

           // sample Tidy configuration options
           output-xhtml: yes
           add-xml-decl: no
           doctype: strict
           char-encoding: ascii
           indent: auto
           wrap: 76
           repeated-attributes: keep-last
           error-file: errs.txt

       Below is a summary and brief description of each of the options. They are listed
       alphabetically within each category.  There are five categories: HTML, XHTML, XML options,
       Diagnostics options, Pretty Print options, Character Encoding options, and Miscellaneous
       options.

OPTIONS

   HTML, XHTML, XML options:

       add-xml-decl

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should add the XML declaration when outputting XML or
              XHTML.

              Note that if the input already includes an <?xml ... ?> declaration then this
              option will be ignored.

              If the encoding for the output is different from ascii, one of the utf* encodings,
              or raw, then the declaration is always added as required by the XML standard.

                                                         See also: char-encoding, output-encoding

       add-xml-space

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should add xml:space="preserve" to elements such as
              <pre>, <style> and <script> when generating XML.

              This is needed if the whitespace in such elements is to be parsed appropriately
              without having access to the DTD.

       alt-text

              Type:    String
              Default: -
              Default: -

              This option specifies the default alt= text Tidy uses for <img> attributes when the
              alt= attribute is missing.

              Use with care, as it is your responsibility to make your documents accessible to
              people who cannot see the images.

       anchor-as-name

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option controls the deletion or addition of the name attribute in elements
              where it can serve as anchor.

              If set to yes a name attribute, if not already existing, is added along an existing
              id attribute if the DTD allows it.

              If set to no any existing name attribute is removed if an id attribute exists or
              has been added.

       assume-xml-procins

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should change the parsing of processing instructions
              to require ?> as the terminator rather than >.

              This option is automatically set if the input is in XML.

       bare

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should strip Microsoft specific HTML from Word 2000
              documents, and output spaces rather than non-breaking spaces where they exist in
              the input.

       clean

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should perform cleaning of some legacy presentational
              tags (currently <i>, <b>, <center> when enclosed within appropriate inline tags,
              and <font>). If set to yes then legacy tags will be replaced with CSS <style> tags
              and structural markup as appropriate.

       coerce-endtags

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should coerce a start tag into an end tag in cases
              where it looks like an end tag was probably intended; for example, given

              <span>foo <b>bar<b> baz</span>

              Tidy will output

              <span>foo <b>bar</b> baz</span>

       css-prefix

              Type:    String
              Default: -
              Default: -

              This option specifies the prefix that Tidy uses for styles rules.

              By default, c will be used.

       decorate-inferred-ul

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should decorate inferred <ul> elements with some CSS
              markup to avoid indentation to the right.

       doctype

              Type:    DocType
              Default: auto
              Example: html5, omit, auto, strict, transitional, user

              This option specifies the DOCTYPE declaration generated by Tidy.

              If set to omit the output won't contain a DOCTYPE declaration. Note this this also
              implies numeric-entities is set to yes.

              If set to html5 the DOCTYPE is set to <!DOCTYPE html>.

              If set to auto (the default) Tidy will use an educated guess based upon the
              contents of the document.

              If set to strict, Tidy will set the DOCTYPE to the HTML4 or XHTML1 strict DTD.

              If set to loose, the DOCTYPE is set to the HTML4 or XHTML1 loose (transitional)
              DTD.

              Alternatively, you can supply a string for the formal public identifier (FPI).

              For example:

              doctype: "-//ACME//DTD HTML 3.14159//EN"

              If you specify the FPI for an XHTML document, Tidy will set the system identifier
              to an empty string. For an HTML document, Tidy adds a system identifier only if one
              was already present in order to preserve the processing mode of some browsers. Tidy
              leaves the DOCTYPE for generic XML documents unchanged.

              This option does not offer a validation of document conformance.

       drop-empty-elements

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should discard empty elements.

       drop-empty-paras

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should discard empty paragraphs.

       drop-font-tags

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              Deprecated; do not use. This option is destructive to <font> tags, and it will be
              removed from future versions of Tidy. Use the clean option instead.

              If you do set this option despite the warning it will perform as clean except
              styles will be inline instead of put into a CSS class. <font> tags will be dropped
              completely and their styles will not be preserved.

              If both clean and this option are enabled, <font> tags will still be dropped
              completely, and other styles will be preserved in a CSS class instead of inline.

              See clean for more information.

       drop-proprietary-attributes

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should strip out proprietary attributes, such as
              Microsoft data binding attributes. Additionally attributes that aren't permitted in
              the output version of HTML will be dropped if used with strict-tags-attributes.

       enclose-block-text

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should insert a <p> element to enclose any text it
              finds in any element that allows mixed content for HTML transitional but not HTML
              strict.

       enclose-text

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should enclose any text it finds in the body element
              within a <p> element.

              This is useful when you want to take existing HTML and use it with a style sheet.

       escape-cdata

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should convert <![CDATA[]]> sections to normal text.

       fix-backslash

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should replace backslash characters \ in URLs with
              forward slashes /.

       fix-bad-comments

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should replace unexpected hyphens with = characters
              when it comes across adjacent hyphens.

              The default is yes.

              This option is provided for users of Cold Fusion which uses the comment syntax:
              <!--- --->.

       fix-uri

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should check attribute values that carry URIs for
              illegal characters and if such are found, escape them as HTML4 recommends.

       gdoc

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should enable specific behavior for cleaning up HTML
              exported from Google Docs.

       hide-comments

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should print out comments.

       hide-endtags

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option is an alias for omit-optional-tags.

       indent-cdata

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should indent <![CDATA[]]> sections.

       input-xml

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should use the XML parser rather than the error
              correcting HTML parser.

       join-classes

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should combine class names to generate a single, new
              class name if multiple class assignments are detected on an element.

       join-styles

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should combine styles to generate a single, new style
              if multiple style values are detected on an element.

       literal-attributes

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies how Tidy deals with whitespace characters within attribute
              values.

              If the value is no Tidy normalizes attribute values by replacing any newline or tab
              with a single space, and further by replacing any contiguous whitespace with a
              single space.

              To force Tidy to preserve the original, literal values of all attributes and ensure
              that whitespace within attribute values is passed through unchanged, set this
              option to yes.

       logical-emphasis

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should replace any occurrence of <i> with <em> and
              any occurrence of <b> with <strong>. Any attributes are preserved unchanged.

              This option can be set independently of the clean option.

       lower-literals

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should convert the value of an attribute that takes a
              list of predefined values to lower case.

              This is required for XHTML documents.

       merge-divs

              Type:    AutoBool
              Default: auto
              Example: auto, y/n, yes/no, t/f, true/false, 1/0

              This option can be used to modify the behavior of clean when set to yes.

              This option specifies if Tidy should merge nested <div> such as
              <div><div>...</div></div>.

              If set to auto the attributes of the inner <div> are moved to the outer one. Nested
              <div> with id attributes are not merged.

              If set to yes the attributes of the inner <div> are discarded with the exception of
              class and style.

                                                                     See also: clean, merge-spans

       merge-emphasis

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should merge nested <b> and <i> elements; for
              example, for the case

              <b class="rtop-2">foo <b class="r2-2">bar</b> baz</b>,

              Tidy will output <b class="rtop-2">foo bar baz</b>.

       merge-spans

              Type:    AutoBool
              Default: auto
              Example: auto, y/n, yes/no, t/f, true/false, 1/0

              This option can be used to modify the behavior of clean when set to yes.

              This option specifies if Tidy should merge nested <span> such as
              <span><span>...</span></span>.

              The algorithm is identical to the one used by merge-divs.

                                                                      See also: clean, merge-divs

       ncr

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should allow numeric character references.

       new-blocklevel-tags

              Type:    Tag names
              Default: -
              Example: tagX, tagY, ...

              This option specifies new block-level tags. This option takes a space or comma
              separated list of tag names.

              Unless you declare new tags, Tidy will refuse to generate a tidied file if the
              input includes previously unknown tags.

              Note you can't change the content model for elements such as <table>, <ul>, <ol>
              and <dl>.

              This option is ignored in XML mode.

                                          See also: new-empty-tags, new-inline-tags, new-pre-tags

       new-empty-tags

              Type:    Tag names
              Default: -
              Example: tagX, tagY, ...

              This option specifies new empty inline tags. This option takes a space or comma
              separated list of tag names.

              Unless you declare new tags, Tidy will refuse to generate a tidied file if the
              input includes previously unknown tags.

              Remember to also declare empty tags as either inline or blocklevel.

              This option is ignored in XML mode.

                                     See also: new-blocklevel-tags, new-inline-tags, new-pre-tags

       new-inline-tags

              Type:    Tag names
              Default: -
              Example: tagX, tagY, ...

              This option specifies new non-empty inline tags. This option takes a space or comma
              separated list of tag names.

              Unless you declare new tags, Tidy will refuse to generate a tidied file if the
              input includes previously unknown tags.

              This option is ignored in XML mode.

                                      See also: new-blocklevel-tags, new-empty-tags, new-pre-tags

       new-pre-tags

              Type:    Tag names
              Default: -
              Example: tagX, tagY, ...

              This option specifies new tags that are to be processed in exactly the same way as
              HTML's <pre> element. This option takes a space or comma separated list of tag
              names.

              Unless you declare new tags, Tidy will refuse to generate a tidied file if the
              input includes previously unknown tags.

              Note you cannot as yet add new CDATA elements.

              This option is ignored in XML mode.

                                   See also: new-blocklevel-tags, new-empty-tags, new-inline-tags

       numeric-entities

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should output entities other than the built-in HTML
              entities (&amp;, &lt;, &gt;, and &quot;) in the numeric rather than the named
              entity form.

              Only entities compatible with the DOCTYPE declaration generated are used.

              Entities that can be represented in the output encoding are translated
              correspondingly.

                                                             See also: doctype, preserve-entities

       omit-optional-tags

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should omit optional start tags and end tags when
              generating output.

              Setting this option causes all tags for the <html>, <head>, and <body> elements to
              be omitted from output, as well as such end tags as </p>, </li>, </dt>, </dd>,
              </option>, </tr>, </td>, and </th>.

              This option is ignored for XML output.

       output-html

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should generate pretty printed output, writing it as
              HTML.

       output-xhtml

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should generate pretty printed output, writing it as
              extensible HTML.

              This option causes Tidy to set the DOCTYPE and default namespace as appropriate to
              XHTML, and will use the corrected value in output regardless of other sources.

              For XHTML, entities can be written as named or numeric entities according to the
              setting of numeric-entities.

              The original case of tags and attributes will be preserved, regardless of other
              options.

       output-xml

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should pretty print output, writing it as well-formed
              XML.

              Any entities not defined in XML 1.0 will be written as numeric entities to allow
              them to be parsed by an XML parser.

              The original case of tags and attributes will be preserved, regardless of other
              options.

       preserve-entities

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should preserve well-formed entities as found in the
              input.

       quote-ampersand

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should output unadorned & characters as &amp;.

       quote-marks

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should output " characters as &quot; as is preferred
              by some editing environments.

              The apostrophe character ' is written out as &#39; since many web browsers don't
              yet support &apos;.

       quote-nbsp

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should output non-breaking space characters as
              entities, rather than as the Unicode character value 160 (decimal).

       repeated-attributes

              Type:    enum
              Default: keep-last
              Example: keep-first, keep-last

              This option specifies if Tidy should keep the first or last attribute, if an
              attribute is repeated, e.g. has two align attributes.

                                                              See also: join-classes, join-styles

       replace-color

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should replace numeric values in color attributes
              with HTML/XHTML color names where defined, e.g. replace #ffffff with white.

       show-body-only

              Type:    AutoBool
              Default: no
              Example: auto, y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should print only the contents of the body tag as an
              HTML fragment.

              If set to auto, this is performed only if the body tag has been inferred.

              Useful for incorporating existing whole pages as a portion of another page.

              This option has no effect if XML output is requested.

       skip-nested

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies that Tidy should skip nested tags when parsing script and
              style data.

       strict-tags-attributes

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This options ensures that tags and attributes are applicable for the version of
              HTML that Tidy outputs. When set to yes (the default) and the output document type
              is a strict doctype, then Tidy will report errors. If the output document type is a
              loose or transitional doctype, then Tidy will report warnings.

              Additionally if drop-proprietary-attributes is enabled, then not applicable
              attributes will be dropped, too.

              When set to no, these checks are not performed.

       uppercase-attributes

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should output attribute names in upper case.

              The default is no, which results in lower case attribute names, except for XML
              input, where the original case is preserved.

       uppercase-tags

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should output tag names in upper case.

              The default is no which results in lower case tag names, except for XML input where
              the original case is preserved.

       word-2000

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should go to great pains to strip out all the surplus
              stuff Microsoft Word 2000 inserts when you save Word documents as "Web pages". It
              doesn't handle embedded images or VML.

              You should consider using Word's "Save As: Web Page, Filtered".

   Diagnostics options:

       accessibility-check

              Type:    enum
              Default: 0 (Tidy Classic)
              Example: 0 (Tidy Classic), 1 (Priority 1 Checks), 2 (Priority 2 Checks), 3
              (Priority 3 Checks)

              This option specifies what level of accessibility checking, if any, that Tidy
              should perform.

              Level 0 (Tidy Classic) is equivalent to Tidy Classic's accessibility checking.

              For more information on Tidy's accessibility checking, visit Tidy's Accessibility
              Page at http://www.html-tidy.org/accessibility/.

       show-errors

              Type:    Integer
              Default: 6
              Example: 0, 1, 2, ...

              This option specifies the number Tidy uses to determine if further errors should be
              shown. If set to 0, then no errors are shown.

       show-info

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should display info-level messages.

       show-warnings

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should suppress warnings. This can be useful when a
              few errors are hidden in a flurry of warnings.

   Pretty Print options:

       break-before-br

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should output a line break before each <br> element.

       escape-scripts

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option causes items that look like closing tags, like </g to be escaped to
              <\/g. Set this option to 'no' if you do not want this.

       indent

              Type:    AutoBool
              Default: no
              Example: auto, y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should indent block-level tags.

              If set to auto Tidy will decide whether or not to indent the content of tags such
              as <title>, <h1>-<h6>, <li>, <td>, or <p> based on the content including a block-
              level element.

              Setting indent to yes can expose layout bugs in some browsers.

              Use the option indent-spaces to control the number of spaces or tabs output per
              level of indent, and indent-with-tabs to specify whether spaces or tabs are used.

                                                                          See also: indent-spaces

       indent-attributes

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should begin each attribute on a new line.

       indent-spaces

              Type:    Integer
              Default: 2
              Example: 0, 1, 2, ...

              This option specifies the number of spaces or tabs that Tidy uses to indent content
              when indent is enabled.

              Note that the default value for this option is dependent upon the value of indent-
              with-tabs (see also).

                                                                                 See also: indent

       indent-with-tabs

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should indent with tabs instead of spaces, assuming
              indent is yes.

              Set it to yes to indent using tabs instead of the default spaces.

              Use the option indent-spaces to control the number of tabs output per level of
              indent. Note that when indent-with-tabs is enabled the default value of indent-
              spaces is reset to 1.

              Note tab-size controls converting input tabs to spaces. Set it to zero to retain
              input tabs.

       markup

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should generate a pretty printed version of the
              markup. Note that Tidy won't generate a pretty printed version if it finds
              significant errors (see force-output).

       punctuation-wrap

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should line wrap after some Unicode or Chinese
              punctuation characters.

       sort-attributes

              Type:    enum
              Default: none
              Example: none, alpha

              This option specifies that Tidy should sort attributes within an element using the
              specified sort algorithm. If set to alpha, the algorithm is an ascending alphabetic
              sort.

       split

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option has no function and is deprecated.

       tab-size

              Type:    Integer
              Default: 8
              Example: 0, 1, 2, ...

              This option specifies the number of columns that Tidy uses between successive tab
              stops. It is used to map tabs to spaces when reading the input.

       vertical-space

              Type:    AutoBool
              Default: no
              Example: auto, y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should add some extra empty lines for readability.

              The default is no.

              If set to auto Tidy will eliminate nearly all newline characters.

       wrap

              Type:    Integer
              Default: 68
              Example: 0 (no wrapping), 1, 2, ...

              This option specifies the right margin Tidy uses for line wrapping.

              Tidy tries to wrap lines so that they do not exceed this length.

              Set wrap to 0(zero) if you want to disable line wrapping.

       wrap-asp

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should line wrap text contained within ASP pseudo
              elements, which look like: <% ... %>.

       wrap-attributes

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should line-wrap attribute values, meaning that if
              the value of an attribute causes a line to exceed the width specified by wrap, Tidy
              will add one or more line breaks to the value, causing it to be wrapped into
              multiple lines.

              Note that this option can be set independently of wrap-script-literals. By default
              Tidy replaces any newline or tab with a single space and replaces any sequences of
              whitespace with a single space.

              To force Tidy to preserve the original, literal values of all attributes, and
              ensure that whitespace characters within attribute values are passed through
              unchanged, set literal-attributes to yes.

                                               See also: wrap-script-literals, literal-attributes

       wrap-jste

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should line wrap text contained within JSTE pseudo
              elements, which look like: <# ... #>.

       wrap-php

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should line wrap text contained within PHP pseudo
              elements, which look like: <?php ... ?>.

       wrap-script-literals

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should line wrap string literals that appear in
              script attributes.

              Tidy wraps long script string literals by inserting a backslash character before
              the line break.

                                                                        See also: wrap-attributes

       wrap-sections

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should line wrap text contained within <![ ... ]>
              section tags.

   Character Encoding options:

       ascii-chars

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              Can be used to modify behavior of the clean option when set to yes.

              If set to yes when using clean, &emdash;, &rdquo;, and other named character
              entities are downgraded to their closest ASCII equivalents.

                                                                                  See also: clean

       char-encoding

              Type:    Encoding
              Default: utf8
              Example: raw, ascii, latin0, latin1, utf8, iso2022, mac, win1252, ibm858, utf16le,
              utf16be, utf16, big5, shiftjis

              This option specifies the character encoding Tidy uses for both the input and
              output.

              For ascii Tidy will accept Latin-1 (ISO-8859-1) character values, but will use
              entities for all characters whose value >127.

              For raw, Tidy will output values above 127 without translating them into entities.

              For latin1, characters above 255 will be written as entities.

              For utf8, Tidy assumes that both input and output are encoded as UTF-8.

              You can use iso2022 for files encoded using the ISO-2022 family of encodings e.g.
              ISO-2022-JP.

              For mac and win1252, Tidy will accept vendor specific character values, but will
              use entities for all characters whose value >127.

              For unsupported encodings, use an external utility to convert to and from UTF-8.

                                                        See also: input-encoding, output-encoding

       input-encoding

              Type:    Encoding
              Default: utf8
              Example: raw, ascii, latin0, latin1, utf8, iso2022, mac, win1252, ibm858, utf16le,
              utf16be, utf16, big5, shiftjis

              This option specifies the character encoding Tidy uses for the input. See char-
              encoding for more info.

                                                                          See also: char-encoding

       language

              Type:    String
              Default: -
              Default: -

              Currently not used, but this option specifies the language Tidy would use if it
              were properly localized. For example: en.

       newline

              Type:    enum
              Default: Platform dependent
              Example: LF, CRLF, CR

              The default is appropriate to the current platform.

              Genrally CRLF on PC-DOS, Windows and OS/2; CR on Classic Mac OS; and LF everywhere
              else (Linux, Mac OS X, and Unix).

       output-bom

              Type:    AutoBool
              Default: auto
              Example: auto, y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should write a Unicode Byte Order Mark character
              (BOM; also known as Zero Width No-Break Space; has value of U+FEFF) to the
              beginning of the output, and only applies to UTF-8 and UTF-16 output encodings.

              If set to auto this option causes Tidy to write a BOM to the output only if a BOM
              was present at the beginning of the input.

              A BOM is always written for XML/XHTML output using UTF-16 output encodings.

       output-encoding

              Type:    Encoding
              Default: utf8
              Example: raw, ascii, latin0, latin1, utf8, iso2022, mac, win1252, ibm858, utf16le,
              utf16be, utf16, big5, shiftjis

              This option specifies the character encoding Tidy uses for the output.

              Note that this may only be different from input-encoding for Latin encodings
              (ascii, latin0, latin1, mac, win1252, ibm858).

              See char-encoding for more information

                                                                          See also: char-encoding

   Miscellaneous options:

       error-file

              Type:    String
              Default: -
              Default: -

              This option specifies the error file Tidy uses for errors and warnings. Normally
              errors and warnings are output to stderr.

                                                                            See also: output-file

       force-output

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should produce output even if errors are encountered.

              Use this option with care; if Tidy reports an error, this means Tidy was not able
              to (or is not sure how to) fix the error, so the resulting output may not reflect
              your intention.

       gnu-emacs

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should change the format for reporting errors and
              warnings to a format that is more easily parsed by GNU Emacs.

       gnu-emacs-file

              Type:    String
              Default: -
              Default: -

              Used internally.

       keep-time

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should keep the original modification time of files
              that Tidy modifies in place.

              Setting the option to yes allows you to tidy files without changing the file
              modification date, which may be useful with certain tools that use the modification
              date for things such as automatic server deployment.

              Note this feature is not supported on some platforms.

       output-file

              Type:    String
              Default: -
              Default: -

              This option specifies the output file Tidy uses for markup. Normally markup is
              written to stdout.

                                                                             See also: error-file

       quiet

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should output the summary of the numbers of errors
              and warnings, or the welcome or informational messages.

       slide-style

              Type:    String
              Default: -
              Default: -

              This option has no function and is deprecated.

       tidy-mark

              Type:    Boolean
              Default: yes
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should add a meta element to the document head to
              indicate that the document has been tidied.

              Tidy won't add a meta element if one is already present.

       write-back

              Type:    Boolean
              Default: no
              Example: y/n, yes/no, t/f, true/false, 1/0

              This option specifies if Tidy should write back the tidied markup to the same file
              it read from.

              You are advised to keep copies of important files before tidying them, as on rare
              occasions the result may not be what you expect.

SEE ALSO

       For more information about HTML Tidy:

           http://www.html-tidy.org/

       For more information on HTML:

           HTML: Edition for Web Authors (the latest HTML specification)
           http://dev.w3.org/html5/spec-author-view

           HTML: The Markup Language (an HTML language reference)
           http://dev.w3.org/html5/markup/

       For bug reports and comments:

           https://github.com/htacg/tidy-html5/issues/

       Or send questions and comments to public-htacg@w3.org.

       Validate your HTML documents using the W3C Nu Markup Validator:

           http://validator.w3.org/nu/

AUTHOR

       Tidy was written by Dave Raggett <dsr@w3.org>, and subsequently maintained by a team at
       http://tidy.sourceforge.net/, and now maintained by HTACG (http://www.htacg.org).

       The sources for HTML Tidy are available at https://github.com/htacg/tidy-html5/ under the
       MIT Licence.