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data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Module:Roman/sandbox">Read</a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Module:Roman/sandbox&action=edit" title="Edit this page [e]" accesskey="e">Edit</a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Module:Roman/sandbox&action=history">View history</a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/Module:Roman/sandbox" title="List of all English Wikipedia pages containing links to this page [j]" accesskey="j">What links here</a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/Module:Roman/sandbox" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k">Related changes</a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u">Upload file</a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q">Special pages</a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Module:Roman/sandbox&oldid=1138257795" title="Permanent link to this revision of this page">Permanent link</a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Module:Roman/sandbox&action=info" title="More information about this page">Page information</a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FModule%3ARoman%2Fsandbox">Get shortened URL</a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FModule%3ARoman%2Fsandbox">Download QR code</a></li> </ul> </div> </div> <div id="p-electronpdfservice-sidebar-portlet-heading" class="vector-menu mw-portlet mw-portlet-electronpdfservice-sidebar-portlet-heading" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="electron-print_pdf" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=Module%3ARoman%2Fsandbox&action=show-download-screen">Download as PDF</a></li><li id="t-print" class="mw-list-item"><a href="javascript:print();" rel="alternate" title="Printable version of this page [p]" accesskey="p">Printable version</a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects emptyPortlet" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button 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0;padding:1em}.mw-parser-output .documentation-metadata{margin:0.2em 0;font-style:italic;padding:0.4em 1em}.mw-parser-output .documentation-startbox{padding-bottom:3px;border-bottom:1px solid #aaa;margin-bottom:1ex}.mw-parser-output .documentation-heading{font-weight:bold;font-size:125%}.mw-parser-output .documentation-clear{clear:both}.mw-parser-output .documentation-toolbar{font-style:normal;font-size:85%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .documentation,html.skin-theme-clientpref-night .mw-parser-output .documentation-metadata{background-color:#0b1e1c}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .documentation,html.skin-theme-clientpref-os .mw-parser-output .documentation-metadata{background-color:#0b1e1c}}</style><div class="documentation-clear"></div><style data-mw-deduplicate="TemplateStyles:r1238436933">.mw-parser-output .ombox{margin:4px 0;border-collapse:collapse;border:1px solid #a2a9b1;background-color:var(--background-color-neutral-subtle,#f8f9fa);box-sizing:border-box;color:var(--color-base,#202122)}.mw-parser-output .ombox.mbox-small{font-size:88%;line-height:1.25em}.mw-parser-output .ombox-speedy{border:2px solid #b32424;background-color:#fee7e6}.mw-parser-output .ombox-delete{border:2px solid #b32424}.mw-parser-output .ombox-content{border:1px solid #f28500}.mw-parser-output .ombox-style{border:1px solid #fc3}.mw-parser-output .ombox-move{border:1px solid #9932cc}.mw-parser-output .ombox-protection{border:2px solid #a2a9b1}.mw-parser-output .ombox .mbox-text{border:none;padding:0.25em 0.9em;width:100%}.mw-parser-output .ombox .mbox-image{border:none;padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .ombox .mbox-imageright{border:none;padding:2px 0.9em 2px 0;text-align:center}.mw-parser-output .ombox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ombox .mbox-invalid-type{text-align:center}@media(min-width:720px){.mw-parser-output .ombox{margin:4px 10%}.mw-parser-output .ombox.mbox-small{clear:right;float:right;margin:4px 0 4px 1em;width:238px}}body.skin--responsive .mw-parser-output table.ombox img{max-width:none!important}@media screen{html.skin-theme-clientpref-night .mw-parser-output .ombox-speedy{background-color:#310402}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .ombox-speedy{background-color:#310402}}</style><table class="plainlinks ombox ombox-notice" role="presentation"><tbody><tr><td class="mbox-image"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/88/Sandbox.svg/50px-Sandbox.svg.png" decoding="async" width="50" height="33" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/88/Sandbox.svg/75px-Sandbox.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/88/Sandbox.svg/100px-Sandbox.svg.png 2x" data-file-width="650" data-file-height="424" /></td><td class="mbox-text">This is the <a href="/wiki/Wikipedia:Template_test_cases" class="mw-redirect" title="Wikipedia:Template test cases">module sandbox</a> page for <a href="/wiki/Module:Roman" title="Module:Roman">Module:Roman</a> (<a class="external text" href="https://en.wikipedia.org/w/index.php?title=Special%3AComparePages&page1=Module%3ARoman&page2=Module%3ARoman%2Fsandbox">diff</a>). See also the companion subpage for <a href="/wiki/Module:Roman/testcases" title="Module:Roman/testcases">test cases</a> (<a href="/wiki/Module_talk:Roman/testcases" title="Module talk:Roman/testcases">run</a>).</td></tr></tbody></table><div class="documentation-container" role="complementary" aria-labelledby="documentation-heading"> <div class="documentation"> <div class="documentation-startbox"> <img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/43/Test_Template_Info-Icon_-_Version_%282%29.svg/50px-Test_Template_Info-Icon_-_Version_%282%29.svg.png" decoding="async" width="50" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/43/Test_Template_Info-Icon_-_Version_%282%29.svg/75px-Test_Template_Info-Icon_-_Version_%282%29.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/43/Test_Template_Info-Icon_-_Version_%282%29.svg/100px-Test_Template_Info-Icon_-_Version_%282%29.svg.png 2x" data-file-width="1792" data-file-height="800" /> Module documentation[<a href="/wiki/Module:Roman/doc" title="Module:Roman/doc">view</a>] [<a href="/wiki/Special:EditPage/Module:Roman/doc" title="Special:EditPage/Module:Roman/doc">edit</a>] [<a href="/wiki/Special:PageHistory/Module:Roman/doc" title="Special:PageHistory/Module:Roman/doc">history</a>] [<a href="/wiki/Special:Purge/Module:Roman/sandbox" title="Special:Purge/Module:Roman/sandbox">purge</a>]</div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238436933"><table class="plainlinks ombox ombox-style" role="presentation"><tbody><tr><td class="mbox-image"><img alt="Warning" src="//upload.wikimedia.org/wikipedia/en/thumb/7/74/Ambox_warning_yellow.svg/40px-Ambox_warning_yellow.svg.png" decoding="async" width="40" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/7/74/Ambox_warning_yellow.svg/60px-Ambox_warning_yellow.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/7/74/Ambox_warning_yellow.svg/80px-Ambox_warning_yellow.svg.png 2x" data-file-width="386" data-file-height="334" /></td><td class="mbox-text">This Lua module is used on <a class="external text" href="https://linkcount.toolforge.org/?project=en.wikipedia.org&page=Module%3ARoman#transclusions">5,900+ pages</a> and changes may be widely noticed. Test changes in the module's <a class="mw-selflink selflink">/sandbox</a> or <a href="/wiki/Module:Roman/testcases" title="Module:Roman/testcases">/testcases</a> subpages, or in your own <a href="/wiki/Module:Sandbox" title="Module:Sandbox">module sandbox</a>. Consider discussing changes on the <a href="/wiki/Module_talk:Roman" class="mw-redirect" title="Module talk:Roman">talk page</a> before implementing them.</td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238436933"><table class="plainlinks ombox ombox-notice" role="presentation"><tbody><tr><td class="mbox-image"><img alt="Protected" src="//upload.wikimedia.org/wikipedia/en/thumb/5/53/Template-protection-shackle.svg/40px-Template-protection-shackle.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/5/53/Template-protection-shackle.svg/60px-Template-protection-shackle.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/5/53/Template-protection-shackle.svg/80px-Template-protection-shackle.svg.png 2x" data-file-width="512" data-file-height="512" /></td><td class="mbox-text">This module is <a href="/wiki/Category:Modules_subject_to_page_protection" title="Category:Modules subject to page protection">subject to page protection</a>. It is a <a href="/wiki/Wikipedia:High-risk_templates" title="Wikipedia:High-risk templates">highly visible module</a> in use by a very large number of pages, or is <a href="/wiki/Wikipedia:Substitution" title="Wikipedia:Substitution">substituted</a> very frequently. Because vandalism or mistakes would affect many pages, and even trivial editing might cause substantial load on the servers, it is <a href="/wiki/Wikipedia:Protection_policy" title="Wikipedia:Protection policy">protected</a> from editing.</td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r1246091330">.mw-parser-output .sidebar{width:22em;float:right;clear:right;margin:0.5em 0 1em 1em;background:var(--background-color-neutral-subtle,#f8f9fa);border:1px solid var(--border-color-base,#a2a9b1);padding:0.2em;text-align:center;line-height:1.4em;font-size:88%;border-collapse:collapse;display:table}body.skin-minerva .mw-parser-output .sidebar{display:table!important;float:right!important;margin:0.5em 0 1em 1em!important}.mw-parser-output .sidebar-subgroup{width:100%;margin:0;border-spacing:0}.mw-parser-output .sidebar-left{float:left;clear:left;margin:0.5em 1em 1em 0}.mw-parser-output .sidebar-none{float:none;clear:both;margin:0.5em 1em 1em 0}.mw-parser-output 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.sidebar-above,.mw-parser-output .sidebar-collapse .sidebar-below{border-top:1px solid #aaa;border-bottom:1px solid #aaa}.mw-parser-output .sidebar-navbar{text-align:right;font-size:115%;padding:0 0.4em 0.4em}.mw-parser-output .sidebar-list-title{padding:0 0.4em;text-align:left;font-weight:bold;line-height:1.6em;font-size:105%}.mw-parser-output .sidebar-list-title-c{padding:0 0.4em;text-align:center;margin:0 3.3em}@media(max-width:640px){body.mediawiki .mw-parser-output .sidebar{width:100%!important;clear:both;float:none!important;margin-left:0!important;margin-right:0!important}}body.skin--responsive .mw-parser-output .sidebar a>img{max-width:none!important}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle a{color:var(--color-progressive)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle a{color:var(--color-progressive)!important}}@media print{body.ns-0 .mw-parser-output .sidebar{display:none!important}}</style><style data-mw-deduplicate="TemplateStyles:r1019578893">.mw-parser-output .lua-sidebar{width:auto;max-width:22em}</style><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><table class="sidebar nomobile nowraplinks lua-sidebar"><tbody><tr><th class="sidebar-title">Related pages</th></tr><tr><td class="sidebar-content"> <div class="plainlist"> <ul><li><a href="/wiki/Template:Roman" title="Template:Roman">Template</a> (<a href="/wiki/Template_talk:Roman" title="Template talk:Roman">talk</a>)</li> <li><a href="/wiki/Template:Roman/sandbox" title="Template:Roman/sandbox">Template sandbox</a></li> <li><a href="/wiki/Template:Roman/testcases" title="Template:Roman/testcases">Template testcases</a></li> <li><a href="/wiki/Template:Roman/doc" title="Template:Roman/doc">Template doc</a></li> <li><a href="/wiki/Special:PrefixIndex/Template:Roman/" title="Special:PrefixIndex/Template:Roman/">Template subpages</a></li> <li><a href="/wiki/Module:Roman" title="Module:Roman">Module</a></li> <li><a class="mw-selflink selflink">Module sandbox</a></li> <li><a href="/wiki/Module_talk:Roman/testcases" title="Module talk:Roman/testcases">Module testcases</a></li> <li><a href="/wiki/Module:Roman/doc" title="Module:Roman/doc">Module doc</a></li> <li><a href="/wiki/Special:PrefixIndex/Module:Roman/" title="Special:PrefixIndex/Module:Roman/">Module subpages</a></li></ul> </div></td> </tr></tbody></table> This module implements the {{<a href="/wiki/Template:Roman" title="Template:Roman">Roman</a>}} template. For behavioral documentation, please see the template page. For test cases, please see <a href="/wiki/Template:Roman/testcases" title="Template:Roman/testcases">Template:Roman/testcases</a>. <ul><li>Module supports 0 as a Roman numeral, displays as 'N'.</li> <li>Prior to 25 April 2016, used to display 69105 as LXVMMMMCV. With the addition of IX and IV being 9000 and 4000 respectively, we now display 69105 as LXIXCV.</li> <li>Module handles decimal, fractional, and arithmetic expressions to a precision of 1/1728. Uses <code>#expr:</code> at line 122.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Handling_tricky_cases_(like_0.00001_and_99.99999)">Handling tricky cases (like 0.00001 and 99.99999)</h2>[<a href="/w/index.php?title=Module:Roman/doc&action=edit&section=T-1" title="Edit section: Handling tricky cases (like 0.00001 and 99.99999)">edit</a>]</div> <ol><li>Find the Roman numerals for the integer part of the number.</li> <li>If the number is not an integer: <ul><li>Add half of the smallest unit (1/1728) to simulate rounding instead of truncation.</li> <li>Ensure this new result is between 1/1728 and 1727/1728. (actually 1.1/1728 and 1727.1/1728 due to floating point rounding issues)</li></ul></li> <li>Hence, 0.00001 is guaranteed to have at least the smallest unit symbol (instead of being blank or 0), and 99.99999 does not display as 100 or 99 and 2 halves.</li></ol> <div class="mw-heading mw-heading2"><h2 id="Validation">Validation</h2>[<a href="/w/index.php?title=Module:Roman/doc&action=edit&section=T-2" title="Edit section: Validation">edit</a>]</div> <ul><li><a href="/wiki/Template:Roman/testcases" title="Template:Roman/testcases">Template:Roman/testcases</a></li> <li><a href="/wiki/Module:Roman/testcases" title="Module:Roman/testcases">Module:Roman/testcases</a> - does not contain fractional/decimal tests</li> <li>The template supports <code>subst:</code> and <code>safesubst:</code>.</li></ul> <div class="documentation-clear"></div> </div> <div role="note" class="documentation-metadata plainlinks">The above <a href="/wiki/Wikipedia:Template_documentation" title="Wikipedia:Template documentation">documentation</a> is <a href="/wiki/Help:Transclusion" title="Help:Transclusion">transcluded</a> from <a href="/wiki/Module:Roman/doc" title="Module:Roman/doc">Module:Roman/doc</a>. (<a href="/wiki/Special:EditPage/Module:Roman/doc" title="Special:EditPage/Module:Roman/doc">edit</a> | <a href="/wiki/Special:PageHistory/Module:Roman/doc" title="Special:PageHistory/Module:Roman/doc">history</a>) Editors can experiment in this module's <a class="mw-selflink selflink">sandbox</a> (<a href="/wiki/Special:EditPage/Module:Roman/sandbox" title="Special:EditPage/Module:Roman/sandbox">edit</a> | <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Special%3AComparePages&page1=Module%3ARoman&page2=Module%3ARoman%2Fsandbox">diff</a>) and <a href="/wiki/Module:Roman/testcases" title="Module:Roman/testcases">testcases</a> (<a href="/wiki/Special:EditPage/Module:Roman/testcases" title="Special:EditPage/Module:Roman/testcases">edit</a> | <a href="/wiki/Module_talk:Roman/testcases" title="Module talk:Roman/testcases">run</a>) pages. Add categories to the <a href="/wiki/Module:Roman/doc" title="Module:Roman/doc">/doc</a> subpage. <a href="/wiki/Special:PrefixIndex/Module:Roman/" title="Special:PrefixIndex/Module:Roman/">Subpages of this module</a>.</div></div><div class="mw-highlight mw-highlight-lang-lua mw-content-ltr mw-highlight-lines" dir="ltr"><pre><a href="#L-1"></a>-- This module implements {{Roman}}. <a href="#L-2"></a>require[[strict]] <a href="#L-3"></a> <a href="#L-4"></a>local p = {} <a href="#L-5"></a> <a href="#L-6"></a>-- This function implements the {{overline}} template. <a href="#L-7"></a>local function overline(s) <a href="#L-8"></a> return mw.ustring.format( '%s', s ) <a href="#L-9"></a>end <a href="#L-10"></a> <a href="#L-11"></a>-- Gets the Roman numerals for a given numeral table. Returns both the string of <a href="#L-12"></a>-- numerals and the value of the number after it is finished being processed. <a href="#L-13"></a>local function getLetters(num, t) <a href="#L-14"></a> local ret = {} <a href="#L-15"></a> for _, v in ipairs(t) do <a href="#L-16"></a> local val, letter = unpack(v) <a href="#L-17"></a> while num >= val do <a href="#L-18"></a> num = num - val <a href="#L-19"></a> table.insert(ret, letter) <a href="#L-20"></a> end <a href="#L-21"></a> end <a href="#L-22"></a> <a href="#L-23"></a> return table.concat(ret), num <a href="#L-24"></a>end <a href="#L-25"></a> <a href="#L-26"></a>-- The main control flow of the module. <a href="#L-27"></a>local function _main(args) <a href="#L-28"></a> -- Get input and exit displaying nothing if the input is empty. <a href="#L-29"></a> if args[1] == nil then return end <a href="#L-30"></a> local num = tonumber(args[1]) <a href="#L-31"></a> if not num or num < 0 or num == math.huge then <a href="#L-32"></a> error('Invalid number ' .. args[1], 2) <a href="#L-33"></a> elseif num == 0 then <a href="#L-34"></a> return 'N' <a href="#L-35"></a> end <a href="#L-36"></a> <a href="#L-37"></a> -- Return a message for numbers too big to be expressed in Roman numerals. <a href="#L-38"></a> if num >= 5000000 then <a href="#L-39"></a> return args[2] or 'N/A' <a href="#L-40"></a> end <a href="#L-41"></a> <a href="#L-42"></a> local ret = '' <a href="#L-43"></a> -- Find the Roman numerals for the large part of numbers. <a href="#L-44"></a> -- 23 April 2016 - tweaked to >= 4000 to accept big Roman 'IV' <a href="#L-45"></a> -- The if statement is not strictly necessary, but makes the algorithm <a href="#L-46"></a> -- more efficient for smaller numbers. <a href="#L-47"></a> if num >= 4000 then <a href="#L-48"></a> local bigRomans = { <a href="#L-49"></a> { 1000000, 'M' }, <a href="#L-50"></a> { 900000, 'CM' }, { 500000, 'D' }, { 400000, 'CD' }, { 100000, 'C' }, <a href="#L-51"></a> { 90000, 'XC' }, { 50000, 'L' }, { 40000, 'XL' }, { 10000, 'X' }, <a href="#L-52"></a> { 9000, 'IX' }, { 5000, 'V' }, { 4000, 'IV' }, <a href="#L-53"></a> } <a href="#L-54"></a> local bigLetters <a href="#L-55"></a> bigLetters, num = getLetters(num, bigRomans) <a href="#L-56"></a> ret = overline(bigLetters) <a href="#L-57"></a> end <a href="#L-58"></a> <a href="#L-59"></a> -- Find the Roman numerals for numbers less than the big Roman threshold. <a href="#L-60"></a> local smallRomans = { <a href="#L-61"></a> { 1000, 'M' }, <a href="#L-62"></a> { 900, 'CM' }, { 500, 'D' }, { 400, 'CD' }, { 100, 'C' }, <a href="#L-63"></a> { 90, 'XC' }, { 50, 'L' }, { 40, 'XL' }, { 10, 'X' }, <a href="#L-64"></a> { 9, 'IX' }, { 5, 'V' }, { 4, 'IV' }, { 1, 'I' } <a href="#L-65"></a> } <a href="#L-66"></a> local smallLetters = getLetters( num, smallRomans ) <a href="#L-67"></a> ret = ret .. smallLetters <a href="#L-68"></a> <a href="#L-69"></a> if args.fraction == 'yes' then <a href="#L-70"></a> -- Find the Roman numerals for the fractional parts of numbers. <a href="#L-71"></a> -- If num is not a whole number, add half of 1/1728 (the smallest unit) to equate to rounding. <a href="#L-72"></a> -- Ensure we're not less than the smallest unit or larger than 1 - smallest unit <a href="#L-73"></a> -- to avoid getting two "half" symbols or no symbols at all <a href="#L-74"></a> num = num - math.floor(num) <a href="#L-75"></a> if num ~= 0 then <a href="#L-76"></a> num = math.max(1.1/1728, math.min(1727.1/1728, num + 1/3456)) <a href="#L-77"></a> end <a href="#L-78"></a> local fractionalRomans = { <a href="#L-79"></a> { 1/2, 'S' }, { 5/12, "''':'''•''':'''" }, { 1/3, "'''::'''" }, <a href="#L-80"></a> { 1/4, "''':'''•" }, { 1/6, "''':'''" }, { 1/12, '•' }, <a href="#L-81"></a> { 1/24, 'Є' }, { 1/36, 'ƧƧ' }, { 1/48, 'Ɔ' }, { 1/72, 'Ƨ' }, { 1/144, '<s>Ƨ</s>' }, <a href="#L-82"></a> { 1/288, '℈' }, { 1/1728, '»' }, <a href="#L-83"></a> } <a href="#L-84"></a> local fractionalLetters = getLetters(num, fractionalRomans) <a href="#L-85"></a> <a href="#L-86"></a> ret = ret .. fractionalLetters <a href="#L-87"></a> end <a href="#L-88"></a> <a href="#L-89"></a> return ret <a href="#L-90"></a>end <a href="#L-91"></a> <a href="#L-92"></a>function p.main(frame) <a href="#L-93"></a> -- If called via #invoke, use the args passed into the invoking <a href="#L-94"></a> -- template, or the args passed to #invoke if any exist. Otherwise <a href="#L-95"></a> -- assume args are being passed directly in from the debug console <a href="#L-96"></a> -- or from another Lua module. <a href="#L-97"></a> local origArgs <a href="#L-98"></a> if frame == mw.getCurrentFrame() then <a href="#L-99"></a> origArgs = frame:getParent().args <a href="#L-100"></a> for k, v in pairs(frame.args) do <a href="#L-101"></a> origArgs = frame.args <a href="#L-102"></a> break <a href="#L-103"></a> end <a href="#L-104"></a> else <a href="#L-105"></a> origArgs = frame <a href="#L-106"></a> end <a href="#L-107"></a> -- Trim whitespace and remove blank arguments. <a href="#L-108"></a> local args = {} <a href="#L-109"></a> for k, v in pairs(origArgs) do <a href="#L-110"></a> if type( v ) == 'string' then <a href="#L-111"></a> v = mw.text.trim(v) <a href="#L-112"></a> end <a href="#L-113"></a> if v ~= '' then <a href="#L-114"></a> args[k] = v <a href="#L-115"></a> end <a href="#L-116"></a> end <a href="#L-117"></a> <a href="#L-118"></a> -- exit if not given anything <a href="#L-119"></a> if args == nil or args == {} then return end <a href="#L-120"></a> -- Given mathematical expression, simplify to a number <a href="#L-121"></a> if type(args[1]) == 'string' then <a href="#L-122"></a> local success, result = pcall(mw.ext.ParserFunctions.expr, args[1]) <a href="#L-123"></a> if success then <a href="#L-124"></a> args[1] = result <a href="#L-125"></a> end -- else, pass to _main routine and try to let Lua's tonumber handle it <a href="#L-126"></a> end <a href="#L-127"></a> return _main(args) <a href="#L-128"></a>end <a href="#L-129"></a> <a href="#L-130"></a>return p </pre></div>   </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Module:Roman/sandbox&oldid=1138257795">https://en.wikipedia.org/w/index.php?title=Module:Roman/sandbox&oldid=1138257795</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Category</a>: <ul><li><a href="/wiki/Category:Module_sandboxes" title="Category:Module sandboxes">Module sandboxes</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden category: <ul><li><a href="/wiki/Category:Lua-based_templates" title="Category:Lua-based templates">Lua-based templates</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 8 February 2023, at 19:33 (UTC).</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. 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