@lexical/markdown/dist/LexicalMarkdown.prod.js

This package contains Markdown helpers and functionality for Lexical.

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

"use strict";var e=require("lexical"),t=require("@lexical/selection"),n=require("@lexical/code-core"),o=require("@lexical/link"),r=require("@lexical/list"),s=require("@lexical/rich-text");function i(e,t){const n={};for(const o of e){const e=t(o);e&&(n[e]?n[e].push(o):n[e]=[o])}return n}function l(e){const t=i(e,e=>e.type);return{element:t.element||[],multilineElement:t["multiline-element"]||[],textFormat:t["text-format"]||[],textMatch:t["text-match"]||[]}}const c=/[!-/:-@[-`{-~\s]/,a=/\s/,d=/[!"#$%&'()*+,\-./:;<=>?@[\]^_`{|}~]/,f=/^\s{0,3}$/;function u(t){if(!e.$isParagraphNode(t))return!1;const n=t.getFirstChild();return null==n||1===t.getChildrenSize()&&e.$isTextNode(n)&&f.test(n.getTextContent())}function g(e){return e.replace(/\\([!-/:-@[-`{-~])/g,"$1").replace(/&#(\d+);/g,(e,t)=>String.fromCodePoint(Number(t)))}const p=/^(\s*)(\d{1,})\.\s/,h=/^(\s*)[-*+]\s/,x=/^(\s*)(?:[-*+]\s)?\s?(\[(\s|x)?\])\s/i,m=/^(#{1,6})\s/,$=/^>\s/,N=/^([ \t]*`{3,})([\w-]+)?[ \t]?/,T=/^[ \t]*`{3,}$/,C=/^[ 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o=t.getLastDescendant();n=null==o?null:e.$findMatchingParent(o,r.$isListItemNode)}null!=n&&n.getTextContentSize()>0&&(n.splice(n.getChildrenSize(),0,[w(n),...d.getChildren()]),d.remove())}}}function Ce(t){const n=new Set,o=t.getTextContent();let r=o.indexOf("\t");for(;-1!==r;)n.add(r),n.add(r+1),r=o.indexOf("\t",r+1);t.splitText(...n).forEach(t=>{"\t"===t.getTextContent()&&t.replace(e.$createTabNode())})}function Se(e,...t){const n=new URL("https://lexical.dev/docs/error"),o=new URLSearchParams;o.append("code",e);for(const e of t)o.append("v",e);throw n.search=o.toString(),Error(`Minified Lexical error #${e}; visit ${n.toString()} for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`)}function Ee(t,n,o,r,s){const i=t.getParent();if(!e.$isRootOrShadowRoot(i)||t.getFirstChild()!==n)return!1;const l=n.getTextContent();if(!s&&" "!==l[o-1])return!1;for(const{regExp:e,replace:i}of r){const r=l.match(e),c=s||r&&r[0].endsWith(" 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s=0;s<r;s++)if(e[t+s]!==n[o+s])return!1;return!0}exports.$convertFromMarkdownString=function(t,n=ne,o,r=!1,s=!1){const i=r?t:oe(t,s),l=o||e.$getRoot();l.clear(),$e(i,l,n,r),null!==e.$getSelection()&&l.selectStart()},exports.$convertSelectionToMarkdownString=function(t=ne,n,o=!1){if(!n||e.$isRangeSelection(n)&&n.isCollapsed())return"";const r=function(t,n=!1){const o=l(t),r=[...o.multilineElement,...o.element],s=!n,i=o.textFormat.filter(e=>1===e.format.length).sort((e,t)=>Number(e.format.includes("code"))-Number(t.format.includes("code")));return t=>{const l=[],c=e.$getRoot().getChildren();for(let e=0;e<c.length;e++){const a=c[e],{shouldInclude:d,markdown:f}=re(a,t,r,i,o.textMatch,n);d&&null!=f&&l.push(s&&e>0&&!u(a)&&!u(c[e-1])?"\n".concat(f):f)}return l.join("\n")}}(t,o);return r(n)},exports.$convertToMarkdownString=function(t=ne,n,o=!1){return function(t,n=!1){const o=l(t),r=[...o.multilineElement,...o.element],s=!n,i=o.textFormat.filter(e=>1===e.format.length).sort((e,t)=>Number(e.format.includes("code"))-Number(t.format.includes("code")));return t=>{const l=[],c=(t||e.$getRoot()).getChildren();for(let e=0;e<c.length;e++){const t=c[e],a=ie(t,r,i,o.textMatch,n);null!=a&&l.push(s&&e>0&&!u(t)&&!u(c[e-1])?"\n".concat(a):a)}return l.join("\n")}}(t,o)(n)},exports.$generateNodesFromMarkdownString=function(t,n=ne,o=!1,r=!1){const s=o?t:oe(t,r),i=new e.ArtificialNode__DO_NOT_USE;return $e(s,i,n,o),i.getChildren()},exports.BOLD_ITALIC_STAR=z,exports.BOLD_ITALIC_UNDERSCORE=G,exports.BOLD_STAR=q,exports.BOLD_UNDERSCORE=Q,exports.CHECK_LIST=H,exports.CODE=D,exports.ELEMENT_TRANSFORMERS=V,exports.HEADING=F,exports.HIGHLIGHT=W,exports.INLINE_CODE=j,exports.ITALIC_STAR=Y,exports.ITALIC_UNDERSCORE=X,exports.LINK=J,exports.MULTILINE_ELEMENT_TRANSFORMERS=Z,exports.ORDERED_LIST=U,exports.QUOTE=B,exports.STRIKETHROUGH=K,exports.TEXT_FORMAT_TRANSFORMERS=ee,exports.TEXT_MATCH_TRANSFORMERS=te,exports.TRANSFORMERS=ne,exports.UNORDERED_LIST=P,exports.isTableRowDivider=E,exports.registerMarkdownShortcuts=function(t,o=ne){const r=l(o),s=r.element.filter(e=>e.triggerOnEnter),a=i(r.textFormat,({tag:e})=>e[e.length-1]),d=i(r.textMatch,({trigger:e})=>e),f=new Set([" "]);for(const e of r.textFormat)f.add(e.tag.slice(-1));for(const e of r.textMatch)void 0!==e.trigger&&f.add(e.trigger);for(const e of o){const n=e.type;if("element"===n||"text-match"===n||"multiline-element"===n){const n=e.dependencies;for(const e of n)t.hasNode(e)||Se(173,e.getType())}}const u=(t,n,o)=>!!Ee(t,n,o,r.element)||(!!Ie(t,n,o,r.multilineElement)||(!!function(e,t,n){let o=e.getTextContent();const r=n[o[t-1]];if(null==r)return!1;t<o.length&&(o=o.slice(0,t));for(const t of r){if(!t.replace||!t.regExp)continue;const n=o.match(t.regExp);if(null===n)continue;const r=n.index||0,s=r+n[0].length;let i;return 0===r?[i]=e.splitText(s):[,i]=e.splitText(r,s),i.selectNext(0,0),t.replace(i,n),!0}return!1}(n,o,d)||!!function(t,n,o){const r=t.getTextContent(),s=n-1,i=r[s],l=o[i];if(!l)return!1;for(const n of l){const{tag:o}=n,l=o.length,a=s-l+1;if(l>1&&!Oe(r,a,o,0,l))continue;if(" "===r[a-1])continue;const d=r[s+1];if(!1===n.intraword&&d&&!c.test(d))continue;const f=t;let u=f,g=Le(r,a,o),p=u;for(;g<0&&(p=p.getPreviousSibling())&&!e.$isLineBreakNode(p);)if(e.$isTextNode(p)){if(p.hasFormat("code"))continue;const e=p.getTextContent();u=p,g=Le(e,e.length,o)}if(g<0)continue;if(u===f&&g+l===a)continue;const h=u.getTextContent();if(g>0&&h[g-1]===i)continue;const x=h[g-1];if(!1===n.intraword&&x&&!c.test(x))continue;if(!n.format.includes("code")&&Re(u,g))continue;const m=f.getTextContent(),$=m.slice(0,a)+m.slice(s+1);f.setTextContent($);const N=u===f?$:h;u.setTextContent(N.slice(0,g)+N.slice(g+l));const T=e.$getSelection(),C=e.$createRangeSelection();e.$setSelection(C);const S=s-l*(u===f?2:1)+1;C.anchor.set(u.__key,g,"text"),C.focus.set(f.__key,S,"text");for(const t of n.format)C.formatText(t,e.TEXT_TYPE_TO_FORMAT[t]);C.anchor.set(C.focus.key,C.focus.offset,C.focus.type);for(const e of n.format)C.hasFormat(e)&&C.toggleFormat(e);return e.$isRangeSelection(T)&&(C.format=T.format),!0}return!1}(n,o,a)));return e.mergeRegister(t.registerUpdateListener(({tags:o,dirtyLeaves:r,editorState:s,prevEditorState:i})=>{if(o.has(e.COLLABORATION_TAG)||o.has(e.HISTORIC_TAG))return;if(t.isComposing())return;const l=o.has(e.COMPOSITION_END_TAG),c=s.read(e.$getSelection),a=i.read(e.$getSelection);if(!e.$isRangeSelection(a)||!e.$isRangeSelection(c)||!c.isCollapsed()||c.is(a)&&!l)return;const d=c.anchor.key,g=c.anchor.offset,p=s._nodeMap.get(d);if(e.$isTextNode(p)&&r.has(d)&&(l||1===g||!(g>a.anchor.offset+1))){if(l){const e=s.read(()=>p.getTextContent())[g-1];if(!f.has(e))return}t.update(()=>{if(!xe(p))return;const t=p.getParent();null===t||n.$isCodeNode(t)||u(t,p,c.anchor.offset)&&e.$addUpdateTag(e.HISTORY_PUSH_TAG)})}}),t.registerCommand(e.KEY_ENTER_COMMAND,t=>{if(null!==t&&t.shiftKey)return!1;const o=e.$getSelection();if(!e.$isRangeSelection(o)||!o.isCollapsed())return!1;const i=o.anchor.offset,l=o.anchor.getNode();if(!e.$isTextNode(l)||!xe(l))return!1;const c=l.getParent();if(null===c||n.$isCodeNode(c))return!1;return i===l.getTextContent().length&&(!(!Ie(c,l,i,r.multilineElement,!0)&&!Ee(c,l,i,s,!0))&&(null!==t&&t.preventDefault(),!0))},e.COMMAND_PRIORITY_LOW))};