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TIDY(1) 5.8.0 TIDY(1) NAME tidy - check, correct, and pretty-print HTML(5) files SYNOPSIS tidy [options] [file ...] [options] [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. OPTIONS Tidy supports two different kinds of options. Purely command-line options, starting with a single dash '-', can only be used on the command-line, not in configuration files. They are listed in the first part of this section. Configuration options, on the other hand, can either be passed on the com- mand line, starting with two dashes --, or specified in a configuration file, using the option name, followed by a colon :, plus the value, without the starting dashes. They are listed in the second part of this section, with a sample config file. For command-line options that expect a numerical argument, a default is as- sumed if no meaningful value can be found. On the other hand, configura- tion options cannot be used without a value; a configuration option without a value is simply discarded and reported as an error. Using a command-line option is sometimes equivalent to setting the value of a configuration option. The equivalent option and value are shown in parentheses in the list below, as they would appear in a configuration file. For example, -quiet, -q (quiet: yes) means that using the command- line option -quiet or -q is equivalent to setting the configuration option quiet to yes. Single-letter command-line options without an associated value can be com- bined; for example '-i', '-m' and '-u' may be combined as '-imu'. File manipulation -output <file>, -o <file> (output-file: <file>) write output to the specified <file> -config <file> set configuration options from the specified <file> -file <file>, -f <file> (error-file: <file>) write errors and warnings to the specified <file> -modify, -m (write-back: yes) modify the original input files Processing directives -indent, -i (indent: auto) indent element content -wrap <column>, -w <column> (wrap: <column>) wrap text at the specified <column>. 0 is assumed if <column> is missing. When this option is omitted, the default of the configura- tion option 'wrap' applies. -upper, -u (uppercase-tags: yes) force tags to upper case -clean, -c (clean: yes) replace FONT, NOBR and CENTER tags with CSS -bare, -b (bare: yes) strip out smart quotes and em dashes, etc. -gdoc, -g (gdoc: yes) produce clean version of html exported by Google Docs -numeric, -n (numeric-entities: yes) output numeric rather than named entities -errors, -e (markup: no) show only errors and warnings -quiet, -q (quiet: yes) suppress nonessential output -omit (omit-optional-tags: yes) omit optional start tags and end tags -xml (input-xml: yes) specify the input is well formed XML -asxml, -asxhtml (output-xhtml: yes) convert HTML to well formed XHTML -ashtml (output-html: yes) force XHTML to well formed HTML -access <level> (accessibility-check: <level>) do additional accessibility checks (<level> = 0, 1, 2, 3). 0 is as- sumed if <level> is missing. 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 -help-env show information about the environment and runtime configuration -show-config list the current configuration settings -export-config list the current configuration settings, suitable for a config file -export-default-config list the default configuration settings, suitable for a config file -help-option <option> show a description of the <option> -language <lang> (language: <lang>) set Tidy's output language to <lang>. Specify '-language help' for more help. Use before output-causing arguments to ensure the lan- guage takes effect, e.g.,`tidy -lang es -lang help`. 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 Configuration Options General Configuration options can 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 option: tidy --option1 value1 --option2 value2 ... tidy -config config-file ... Configuration options can be conveniently grouped in a single config 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, which are listed in the Supported values sections below. 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. Document Display options --gnu-emacs Boolean (no if unset) This option specifies that Tidy should change the format for report- ing errors and warnings to a format that is more easily parsed by GNU Emacs or some other program. It changes them from the default line <line number> column <column number> - (Error|Warning): <mes- sage> to a form which includes the input filename: <filename>:<line number>:<column number>: (Error|Warning): <mes- sage> See also: --show-filename --markup Boolean (yes if unset) This option specifies if Tidy should generate a pretty printed ver- sion of the markup. Note that Tidy won't generate a pretty printed version if it finds significant errors (see force-output). --mute String Use this option to prevent Tidy from displaying certain types of re- port output, for example, for conditions that you wish to ignore. This option takes a list of one or more keys indicating the message type to mute. You can discover these message keys by using the mute- id configuration option and examining Tidy's output. See also: --mute-id --mute-id Boolean (no if unset) This option indicates whether or not Tidy should display message ID's with each of its error reports. This could be useful if you wanted to use the mute configuration option in order to filter out certain report messages. See also: --mute --quiet Boolean (no if unset) When enabled, this option limits Tidy's non-document output to re- port only document warnings and errors. --show-body-only Enum (no if unset) Supported values: no, yes, auto 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 in- ferred. Useful for incorporating existing whole pages as a portion of an- other page. This option has no effect if XML output is requested. --show-errors Integer (6 if unset) 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-filename Boolean (no if unset) This option specifies if Tidy should show the filename in messages. eg: tidy -q -e --show-filename yes index.html index.html: line 43 column 3 - Warning: replacing invalid UTF-8 bytes (char. code U+00A9) See also: --gnu-emacs --show-info Boolean (yes if unset) This option specifies if Tidy should display info-level messages. --show-warnings Boolean (yes if unset) This option specifies if Tidy should suppress warnings. This can be useful when a few errors are hidden in a flurry of warnings. Document In and Out options --add-meta-charset Boolean (no if unset) This option, when enabled, adds a <meta> element and sets the charset attribute to the encoding of the document. Set this option to yes to enable it. --add-xml-decl Boolean (no if unset) 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 re- quired by the XML standard. See also: --char-encoding, --output-encoding --add-xml-space Boolean (no if unset) This option specifies if Tidy should add xml:space="preserve" to el- ements 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. --doctype String (auto if unset) 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. Note that selecting this option will not change the current document's DOCTYPE on output. 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 identi- fier (FPI). For example: doctype: "-//ACME//DTD HTML 3.14159//EN" If you specify the FPI for an XHTML document, Tidy will set the sys- tem identifier to an empty string. For an HTML document, Tidy adds a system identifier only if one was already present in order to pre- serve 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. --input-xml Boolean (no if unset) This option specifies if Tidy should use the XML parser rather than the error correcting HTML parser. --output-html Boolean (no if unset) This option specifies if Tidy should generate pretty printed output, writing it as HTML. --output-xhtml Boolean (no if unset) 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 re- gardless of other sources. For XHTML, entities can be written as named or numeric entities ac- cording to the setting of numeric-entities. The original case of tags and attributes will be preserved, regard- less of other options. --output-xml Boolean (no if unset) 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 enti- ties to allow them to be parsed by an XML parser. The original case of tags and attributes will be preserved, regard- less of other options. File Input-Output options --error-file String This option specifies the error file Tidy uses for errors and warn- ings. Normally errors and warnings are output to stderr. See also: --output-file --keep-time Boolean (no if unset) 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 String This option specifies the output file Tidy uses for markup. Normally markup is written to stdout. See also: --error-file --write-back Boolean (no if unset) 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. Diagnostics options --accessibility-check Enum (0 (Tidy Classic) if unset) Supported values: 0 (Tidy Classic), 1 (Priority 1 Checks), 2 (Prior- ity 2 Checks), 3 (Priority 3 Checks) This option specifies what level of accessibility checking, if any, that Tidy should perform. Level 0 (Tidy Classic) performs no additional accessibility check- ing. Level 1 (Priority 1 Checks) performs the Priority Level 1 checks. Level 2 (Priority 2 Checks) performs the Priority Level 1 and 2 checks. Level 3 (Priority 3 Checks) performs the Priority Level 1, 2, and 3 checks. For more information on Tidy's accessibility checking, including the specific checks that are made for each Priority Level, please visit Tidy's Accessibility Page at http://www.html-tidy.org/accessibil- ity/. --force-output Boolean (no if unset) 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 re- sulting output may not reflect your intention. --show-meta-change Boolean (no if unset) This option enables a message whenever Tidy changes the content at- tribute of a meta charset declaration to match the encoding of the document. Set this option to yes to enable it. --warn-proprietary-attributes Boolean (yes if unset) This option specifies if Tidy should warn on proprietary attributes. Encoding options --char-encoding Encoding (utf8 if unset) Supported values: raw, ascii, latin0, latin1, utf8, iso2022, mac, win1252, ibm858, utf16le, utf16be, utf16, big5, shiftjis This option specifies the character encoding Tidy uses for input, and when set, automatically chooses an appropriate character encod- ing to be used for output. The output encoding Tidy chooses may be different from the input encoding. For ascii, latin0, ibm858, mac, and win1252 input encodings, the output-encoding option will automatically be set to ascii. You can set output-encoding manually to override this. For other input encodings, the output-encoding option will automati- cally be set to the the same value. Regardless of the preset value, you can set output-encoding manually to override this. Tidy is not an encoding converter. Although the Latin and UTF encod- ings can be mixed freely, it is not possible to convert Asian encod- ings to Latin encodings with Tidy. See also: --input-encoding, --output-encoding --input-encoding Encoding (utf8 if unset) Supported values: raw, ascii, latin0, latin1, utf8, iso2022, mac, win1252, ibm858, utf16le, utf16be, utf16, big5, shiftjis This option specifies the character encoding Tidy uses for input. Tidy makes certain assumptions about some of the input encodings. For ascii, Tidy will accept Latin-1 (ISO-8859-1) character values and convert them to entities as necessary. For raw, Tidy will make no assumptions about the character values and will pass them unchanged to output. For mac and win1252, vendor specific characters values will be ac- cepted and converted to entities as necessary. Asian encodings such as iso2022 will be handled appropriately assum- ing the corresponding output-encoding is also specified. Tidy is not an encoding converter. Although the Latin and UTF encod- ings can be mixed freely, it is not possible to convert Asian encod- ings to Latin encodings with Tidy. See also: --char-encoding --newline Enum (LF if unset) Supported values: 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, macOS, and Unix). --output-bom Enum (auto if unset) Supported values: no, yes, auto 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 en- codings. --output-encoding Encoding (utf8 if unset) Supported values: raw, ascii, latin0, latin1, utf8, iso2022, mac, win1252, ibm858, utf16le, utf16be, utf16, big5, shiftjis This option specifies the character encoding Tidy uses for output. Some of the output encodings affect whether or not some characters are translated to entities, although in all cases, some entities will be written according to other Tidy configuration options. For ascii, mac, and win1252 output encodings, entities will be used for all characters with values over 127. For raw output, Tidy will write values above 127 without translating them to entities. Output using latin1 will cause Tidy to write character values higher than 255 as entities. The UTF family such as utf8 will write output in the respective UTF encoding. Asian output encodings such as iso2022 will write output in the specified encoding, assuming a corresponding input-encoding was specified. Tidy is not an encoding converter. Although the Latin and UTF encod- ings can be mixed freely, it is not possible to convert Asian encod- ings to Latin encodings with Tidy. See also: --char-encoding Cleanup options --bare Boolean (no if unset) This option specifies if Tidy should replace smart quotes and em dashes with ASCII, and output spaces rather than non-breaking spaces, where they exist in the input. --clean Boolean (no if unset) 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 the legacy tags will be replaced with CSS <style> tags and structural markup as appropriate. --drop-empty-elements Boolean (yes if unset) This option specifies if Tidy should discard empty elements. --drop-empty-paras Boolean (yes if unset) This option specifies if Tidy should discard empty paragraphs. --drop-proprietary-attributes Boolean (no if unset) This option specifies if Tidy should strip out proprietary attrib- utes, such as Microsoft data binding attributes. Additionally at- tributes that aren't permitted in the output version of HTML will be dropped if used with strict-tags-attributes. --gdoc Boolean (no if unset) This option specifies if Tidy should enable specific behavior for cleaning up HTML exported from Google Docs. --logical-emphasis Boolean (no if unset) 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. --merge-divs Enum (auto if unset) Supported values: no, yes, auto 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-spans Enum (auto if unset) Supported values: no, yes, auto 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 --word-2000 Boolean (no if unset) 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 saving using Word's Save As..., and choosing Web Page, Filtered. Entities options --ascii-chars Boolean (no if unset) 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 equiva- lents. See also: --clean --ncr Boolean (yes if unset) This option specifies if Tidy should allow numeric character refer- ences. --numeric-entities Boolean (no if unset) This option specifies if Tidy should output entities other than the built-in HTML entities (&, <, >, and ") in the nu- meric 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 trans- lated correspondingly. See also: --doctype, --preserve-entities --preserve-entities Boolean (no if unset) This option specifies if Tidy should preserve well-formed entities as found in the input. --quote-ampersand Boolean (yes if unset) This option specifies if Tidy should output unadorned & characters as &, in legacy doctypes only. --quote-marks Boolean (no if unset) 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 Boolean (yes if unset) This option specifies if Tidy should output non-breaking space char- acters as entities, rather than as the Unicode character value 160 (decimal). Repair options --alt-text String This option specifies the default alt= text Tidy uses for <img> at- tributes 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 Boolean (yes if unset) 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 at- tribute exists or has been added. --assume-xml-procins Boolean (no if unset) This option specifies if Tidy should change the parsing of process- ing instructions to require ?> as the terminator rather than >. This option is automatically set if the input is in XML. --coerce-endtags Boolean (yes if unset) 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 String (c if unset) This option specifies the prefix that Tidy uses for styles rules. By default, c will be used. --custom-tags Enum (no if unset) Supported values: no, blocklevel, empty, inline, pre This option enables the use of tags for autonomous custom elements, e.g. <flag-icon> with Tidy. Custom tags are disabled if this value is no. Other settings - blocklevel, empty, inline, and pre will treat all detected custom tags accordingly. The use of new-blocklevel-tags, new-empty-tags, new-inline-tags, or new-pre-tags will override the treatment of custom tags by this con- figuration option. This may be useful if you have different types of custom tags. When enabled these tags are determined during the processing of your document using opening tags; matching closing tags will be recog- nized accordingly, and unknown closing tags will be discarded. See also: --new-blocklevel-tags, --new-empty-tags, --new-inline- tags, --new-pre-tags --enclose-block-text Boolean (no if unset) 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 Boolean (no if unset) 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-scripts Boolean (yes if unset) 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. --fix-backslash Boolean (yes if unset) This option specifies if Tidy should replace backslash characters \ in URLs with forward slashes /. --fix-bad-comments Enum (auto if unset) Supported values: no, yes, auto This option specifies if Tidy should replace unexpected hyphens with = characters when it comes across adjacent hyphens. The default is auto will which will act as no for HTML5 document types, and yes for all other document types. HTML has abandoned SGML comment syntax, and allows adjacent hyphens for all versions of HTML, although XML and XHTML do not. If you plan to support older browsers that require SGML comment syntax, then consider setting this value to yes. --fix-style-tags Boolean (yes if unset) This option specifies if Tidy should move all style tags to the head of the document. --fix-uri Boolean (yes if unset) 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. --literal-attributes Boolean (no if unset) 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 at- tributes and ensure that whitespace within attribute values is passed through unchanged, set this option to yes. --lower-literals Boolean (yes if unset) This option specifies if Tidy should convert the value of an at- tribute that takes a list of predefined values to lower case. This is required for XHTML documents. --repeated-attributes Enum (keep-last if unset) Supported values: keep-first, keep-last This option specifies if Tidy should keep the first or last at- tribute, if an attribute is repeated, e.g. has two align attributes. See also: --join-classes, --join-styles --skip-nested Boolean (yes if unset) This option specifies that Tidy should skip nested tags when parsing script and style data. --strict-tags-attributes Boolean (no if unset) This options ensures that tags and attributes are applicable for the version of HTML that Tidy outputs. When set to yes 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 ap- plicable attributes will be dropped, too. When set to no, these checks are not performed. --uppercase-attributes Enum (no if unset) Supported values: no, yes, preserve This option specifies if Tidy should output attribute names in upper case. When set to no, attribute names will be written in lower case. Spec- ifying yes will output attribute names in upper case, and preserve can used to leave attribute names untouched. When using XML input, the original case is always preserved. --uppercase-tags Boolean (no if unset) 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. Transformation options --decorate-inferred-ul Boolean (no if unset) This option specifies if Tidy should decorate inferred <ul> elements with some CSS markup to avoid indentation to the right. --escape-cdata Boolean (no if unset) This option specifies if Tidy should convert <![CDATA[]]> sections to normal text. --hide-comments Boolean (no if unset) This option specifies if Tidy should not print out comments. --join-classes Boolean (no if unset) 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 Boolean (yes if unset) This option specifies if Tidy should combine styles to generate a single, new style if multiple style values are detected on an ele- ment. --merge-emphasis Boolean (yes if unset) This option specifies if Tidy should merge nested <b> and <i> ele- ments; 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>. --replace-color Boolean (no if unset) 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. Teaching Tidy options --new-blocklevel-tags Tag Names Supported values: 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 <ta- ble>, <ul>, <ol> and <dl>. This option is ignored in XML mode. See also: --new-empty-tags, --new-inline-tags, --new-pre-tags, --custom-tags --new-empty-tags Tag Names Supported values: 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, --custom-tags --new-inline-tags Tag Names Supported values: 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, --custom-tags --new-pre-tags Tag Names Supported values: 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, --custom-tags Pretty Print options --break-before-br Boolean (no if unset) This option specifies if Tidy should output a line break before each <br> element. --indent Enum (no if unset) Supported values: no, yes, auto 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 Boolean (no if unset) This option specifies if Tidy should begin each attribute on a new line. --indent-cdata Boolean (no if unset) This option specifies if Tidy should indent <![CDATA[]]> sections. --indent-spaces Integer (2 if unset) 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 Boolean (no if unset) 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. --keep-tabs Boolean (no if unset) With the default no Tidy will replace all source tabs with spaces, controlled by the option tab-size, and the current line offset. Of course, except in the special blocks/elements enumerated below, this will later be reduced to just one space. If set yes this option specifies Tidy should keep certain tabs found in the source, but only in preformatted blocks like <pre>, and other CDATA elements like <script>, <style>, and other pseudo elements like <?php ... ?>. As always, all other tabs, or sequences of tabs, in the source will continue to be replaced with a space. --omit-optional-tags Boolean (no if unset) 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. --priority-attributes Attributes Names Supported values: attributeX, attributeY, ... This option allows prioritizing the writing of attributes in tidied documents, allowing them to written before the other attributes of an element. For example, you might specify that id and name are written before every other attribute. This option takes a space or comma separated list of attribute names. --punctuation-wrap Boolean (no if unset) This option specifies if Tidy should line wrap after some Unicode or Chinese punctuation characters. --sort-attributes Enum (none if unset) Supported values: none, alpha This option specifies that Tidy should sort attributes within an el- ement using the specified sort algorithm. If set to alpha, the algo- rithm is an ascending alphabetic sort. When used while sorting with priority-attributes, any attribute sorting will take place after the priority attributes have been out- put. See also: --priority-attributes --tab-size Integer (8 if unset) 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. --tidy-mark Boolean (yes if unset) This option specifies if Tidy should add a meta element to the docu- ment head to indicate that the document has been tidied. Tidy won't add a meta element if one is already present. --vertical-space Enum (no if unset) Supported values: no, yes, auto 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 Integer (68 if unset) 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 Boolean (yes if unset) This option specifies if Tidy should line wrap text contained within ASP pseudo elements, which look like: <% ... %>. --wrap-attributes Boolean (no if unset) 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-liter- als. 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 at- tributes, 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 Boolean (yes if unset) This option specifies if Tidy should line wrap text contained within JSTE pseudo elements, which look like: <# ... #>. --wrap-php Boolean (no if unset) This option specifies if Tidy should add a new line after a PHP pseudo elements, which look like: <?php ... ?>. --wrap-script-literals Boolean (no if unset) This option specifies if Tidy should line wrap string literals as- signed to element event handler attributes, such as element.on- mouseover(). See also: --wrap-attributes --wrap-sections Boolean (yes if unset) This option specifies if Tidy should line wrap text contained within <![ ... ]> section tags. ENVIRONMENT HTML_TIDY Name of the default configuration file. This should be an absolute path, since you will probably invoke tidy from different directo- ries. 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. RUNTIME CONFIGURATION FILES You can also specify runtime configuration files from which tidy will attempt to load a configuration automatically. The system runtime configuration file (/etc/tidy.conf), if it exists will be loaded and applied first, followed by the user runtime con- figuration file (~/.tidyrc). Subsequent usage of a specific option will override any previous usage. Note that if you use the HTML_TIDY environment variable, then the user runtime configuration file will not be used. This is a feature, not a bug. EXIT STATUS 0 All input files were processed successfully. 1 There were warnings. 2 There were errors. 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. HTML Tidy 5.8.0 TIDY(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT | EXIT STATUS | SEE ALSO | AUTHOR
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