tidy(1)
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 (&, <, >, and ") 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 &.
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
" as is preferred by some editing environments.
The apostrophe character ' is written out as ' since many
web browsers don't yet support '.
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;, ”, 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.
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