4.6.3-website dataset (#532)

packages/global/common/file/api.d.ts

@@ -0,0 +1,8 @@
+export type UrlFetchParams = {
+  urlList: string[];
+  selector?: string;
+};
+export type UrlFetchResponse = {
+  url: string;
+  content: string;
+}[];

packages/global/common/file/tools.ts

@@ -1,3 +1,8 @@
+import axios from 'axios';
+import { UrlFetchParams, UrlFetchResponse } from './api.d';
+import { htmlToMarkdown } from '../string/markdown';
+import * as cheerio from 'cheerio';
+
 export const formatFileSize = (bytes: number): string => {
   if (bytes === 0) return '0 B';
 
@@ -7,3 +12,84 @@ export const formatFileSize = (bytes: number): string => {
 
   return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
 };
+
+export const cheerioToHtml = ({
+  fetchUrl,
+  $,
+  selector
+}: {
+  fetchUrl: string;
+  $: cheerio.CheerioAPI;
+  selector?: string;
+}) => {
+  // get origin url
+  const originUrl = new URL(fetchUrl).origin;
+
+  // remove i element
+  $('i,script').remove();
+
+  // remove empty a element
+  $('a')
+    .filter((i, el) => {
+      return $(el).text().trim() === '' && $(el).children().length === 0;
+    })
+    .remove();
+
+  // if link,img startWith /, add origin url
+  $('a').each((i, el) => {
+    const href = $(el).attr('href');
+    if (href && href.startsWith('/')) {
+      $(el).attr('href', originUrl + href);
+    }
+  });
+  $('img').each((i, el) => {
+    const src = $(el).attr('src');
+    if (src && src.startsWith('/')) {
+      $(el).attr('src', originUrl + src);
+    }
+  });
+
+  return $(selector || 'body').html();
+};
+export const urlsFetch = async ({
+  urlList,
+  selector
+}: UrlFetchParams): Promise<UrlFetchResponse> => {
+  urlList = urlList.filter((url) => /^(http|https):\/\/[^ "]+$/.test(url));
+
+  const response = (
+    await Promise.all(
+      urlList.map(async (url) => {
+        try {
+          const fetchRes = await axios.get(url, {
+            timeout: 30000
+          });
+
+          const $ = cheerio.load(fetchRes.data);
+
+          const md = htmlToMarkdown(
+            cheerioToHtml({
+              fetchUrl: url,
+              $,
+              selector
+            })
+          );
+
+          return {
+            url,
+            content: md
+          };
+        } catch (error) {
+          console.log(error, 'fetch error');
+
+          return {
+            url,
+            content: ''
+          };
+        }
+      })
+    )
+  ).filter((item) => item.content);
+
+  return response;
+};

packages/global/common/plugin/types/pluginRes.d.ts

@@ -1,4 +0,0 @@
-export type FetchResultItem = {
-  url: string;
-  content: string;
-};

packages/global/common/string/markdown.ts

@@ -0,0 +1,97 @@
+import { simpleText } from './tools';
+import { NodeHtmlMarkdown } from 'node-html-markdown';
+
+/* Delete redundant text in markdown */
+export const simpleMarkdownText = (rawText: string) => {
+  rawText = simpleText(rawText);
+
+  // Remove a line feed from a hyperlink or picture
+  rawText = rawText.replace(/\[([^\]]+)\]\((.+?)\)/g, (match, linkText, url) => {
+    const cleanedLinkText = linkText.replace(/\n/g, ' ').trim();
+
+    if (!url) {
+      return '';
+    }
+
+    return `[${cleanedLinkText}](${url})`;
+  });
+
+  // replace special \.* ……
+  const reg1 = /\\([-.!`_(){}\[\]])/g;
+  if (reg1.test(rawText)) {
+    rawText = rawText.replace(/\\([`!*()+-_\[\]{}\\.])/g, '$1');
+  }
+
+  // replace \\n
+  rawText = rawText.replace(/\\\\n/g, '\\n');
+
+  // Remove headings and code blocks front spaces
+  ['####', '###', '##', '#', '```', '~~~'].forEach((item) => {
+    const reg = new RegExp(`\\n\\s*${item}`, 'g');
+    if (reg.test(rawText)) {
+      rawText = rawText.replace(new RegExp(`\\n\\s*(${item})`, 'g'), '\n$1');
+    }
+  });
+
+  return rawText.trim();
+};
+
+/* html string to markdown */
+export const htmlToMarkdown = (html?: string | null) => {
+  if (!html) return '';
+
+  const surround = (source: string, surroundStr: string) => `${surroundStr}${source}${surroundStr}`;
+
+  const nhm = new NodeHtmlMarkdown(
+    {
+      codeFence: '```',
+      codeBlockStyle: 'fenced',
+      ignore: ['i', 'script']
+    },
+    {
+      code: ({ node, parent, options: { codeFence, codeBlockStyle }, visitor }) => {
+        const isCodeBlock = ['PRE', 'WRAPPED-PRE'].includes(parent?.tagName!);
+
+        if (!isCodeBlock) {
+          return {
+            spaceIfRepeatingChar: true,
+            noEscape: true,
+            postprocess: ({ content }) => {
+              // Find longest occurring sequence of running backticks and add one more (so content is escaped)
+              const delimiter =
+                '`' + (content.match(/`+/g)?.sort((a, b) => b.length - a.length)?.[0] || '');
+              const padding = delimiter.length > 1 ? ' ' : '';
+
+              return surround(surround(content, padding), delimiter);
+            }
+          };
+        }
+
+        /* Handle code block */
+        if (codeBlockStyle === 'fenced') {
+          const language =
+            node.getAttribute('class')?.match(/language-(\S+)/)?.[1] ||
+            parent?.getAttribute('class')?.match(/language-(\S+)/)?.[1] ||
+            '';
+
+          return {
+            noEscape: true,
+            prefix: `${codeFence}${language}\n`,
+            postfix: `\n${codeFence}\n`,
+            childTranslators: visitor.instance.codeBlockTranslators
+          };
+        }
+
+        return {
+          noEscape: true,
+          postprocess: ({ content }) => content.replace(/^/gm, '    '),
+          childTranslators: visitor.instance.codeBlockTranslators
+        };
+      }
+    }
+  );
+
+  const markdown = nhm.translate(html).trim();
+
+  return simpleMarkdownText(markdown);
+};

packages/global/common/string/textSplitter.ts

@@ -15,11 +15,18 @@ export const splitText2Chunks = (props: {
 }): {
   chunks: string[];
   tokens: number;
+  overlapRatio?: number;
 } => {
-  const { text = '', chunkLen, overlapRatio = 0.2 } = props;
+  let { text = '', chunkLen, overlapRatio = 0.2 } = props;
   const splitMarker = 'SPLIT_HERE_SPLIT_HERE';
+  const codeBlockMarker = 'CODE_BLOCK_LINE_MARKER';
   const overlapLen = Math.round(chunkLen * overlapRatio);
 
+  // replace code block all \n to codeBlockMarker
+  text = text.replace(/(```[\s\S]*?```|~~~[\s\S]*?~~~)/g, function (match) {
+    return match.replace(/\n/g, codeBlockMarker);
+  });
+
   // The larger maxLen is, the next sentence is less likely to trigger splitting
   const stepReges: { reg: RegExp; maxLen: number }[] = [
     { reg: /^(#\s[^\n]+)\n/gm, maxLen: chunkLen * 1.4 },
@@ -27,8 +34,8 @@ export const splitText2Chunks = (props: {
     { reg: /^(###\s[^\n]+)\n/gm, maxLen: chunkLen * 1.4 },
     { reg: /^(####\s[^\n]+)\n/gm, maxLen: chunkLen * 1.4 },
 
-    { reg: /([\n]{2})/g, maxLen: chunkLen * 1.4 },
-    { reg: /([\n](?![\*\-|>`0-9]))/g, maxLen: chunkLen * 1.8 }, // (?![\*\-|>`0-9]): markdown special char
+    { reg: /([\n](`))/g, maxLen: chunkLen * 4 }, // code block
+    { reg: /([\n](?![\*\-|>0-9]))/g, maxLen: chunkLen * 1.8 }, // (?![\*\-|>`0-9]): markdown special char
     { reg: /([\n])/g, maxLen: chunkLen * 1.4 },
 
     { reg: /([。]|([a-zA-Z])\.\s)/g, maxLen: chunkLen * 1.4 },
@@ -38,9 +45,15 @@ export const splitText2Chunks = (props: {
     { reg: /([，]|,\s)/g, maxLen: chunkLen * 2 }
   ];
 
+  // if use markdown title split, Separate record title title
   const getSplitTexts = ({ text, step }: { text: string; step: number }) => {
     if (step >= stepReges.length) {
-      return [text];
+      return [
+        {
+          text,
+          title: ''
+        }
+      ];
     }
     const isMarkdownSplit = step <= 3;
     const { reg } = stepReges[step];
@@ -49,7 +62,17 @@ export const splitText2Chunks = (props: {
       .replace(reg, isMarkdownSplit ? `${splitMarker}$1` : `$1${splitMarker}`)
       .split(`${splitMarker}`)
       .filter((part) => part.trim());
-    return splitTexts;
+
+    return splitTexts
+      .map((text) => {
+        const matchTitle = isMarkdownSplit ? text.match(reg)?.[0] || '' : '';
+
+        return {
+          text: isMarkdownSplit ? text.replace(matchTitle, '') : text,
+          title: matchTitle
+        };
+      })
+      .filter((item) => item.text.trim());
   };
 
   const getOneTextOverlapText = ({ text, step }: { text: string; step: number }): string => {
@@ -63,7 +86,7 @@ export const splitText2Chunks = (props: {
     let overlayText = '';
 
     for (let i = splitTexts.length - 1; i >= 0; i--) {
-      const currentText = splitTexts[i];
+      const currentText = splitTexts[i].text;
       const newText = currentText + overlayText;
       const newTextLen = newText.length;
 
@@ -83,12 +106,16 @@ export const splitText2Chunks = (props: {
   const splitTextRecursively = ({
     text = '',
     step,
-    lastText
+    lastText,
+    mdTitle = ''
   }: {
     text: string;
     step: number;
     lastText: string;
+    mdTitle: string;
   }): string[] => {
+    const isMarkdownSplit = step <= 3;
+
     // mini text
     if (text.length <= chunkLen) {
       return [text];
@@ -102,7 +129,7 @@ export const splitText2Chunks = (props: {
       // use slice-chunkLen to split text
       const chunks: string[] = [];
       for (let i = 0; i < text.length; i += chunkLen - overlapLen) {
-        chunks.push(text.slice(i, i + chunkLen));
+        chunks.push(`${mdTitle}${text.slice(i, i + chunkLen)}`);
       }
       return chunks;
     }
@@ -115,7 +142,10 @@ export const splitText2Chunks = (props: {
 
     const chunks: string[] = [];
     for (let i = 0; i < splitTexts.length; i++) {
-      const currentText = splitTexts[i];
+      const item = splitTexts[i];
+      const currentTitle = `${mdTitle}${item.title}`;
+
+      const currentText = item.text;
       const currentTextLen = currentText.length;
       const lastTextLen = lastText.length;
       const newText = lastText + currentText;
@@ -125,9 +155,10 @@ export const splitText2Chunks = (props: {
       if (newTextLen > maxLen) {
         // lastText greater minChunkLen, direct push it to chunks, not add to next chunk. (large lastText)
         if (lastTextLen > minChunkLen) {
-          chunks.push(lastText);
+          chunks.push(`${currentTitle}${lastText}`);
           lastText = getOneTextOverlapText({ text: lastText, step }); // next chunk will start with overlayText
           i--;
+
           continue;
         }
 
@@ -135,11 +166,12 @@ export const splitText2Chunks = (props: {
         const innerChunks = splitTextRecursively({
           text: newText,
           step: step + 1,
-          lastText: ''
+          lastText: '',
+          mdTitle: currentTitle
         });
         const lastChunk = innerChunks[innerChunks.length - 1];
         // last chunk is too small, concat it to lastText
-        if (lastChunk.length < minChunkLen) {
+        if (!isMarkdownSplit && lastChunk.length < minChunkLen) {
           chunks.push(...innerChunks.slice(0, -1));
           lastText = lastChunk;
         } else {
@@ -156,10 +188,11 @@ export const splitText2Chunks = (props: {
       // size less than chunkLen, push text to last chunk. now, text definitely less than maxLen
       lastText = newText;
 
-      // If the chunk size reaches, add a chunk
-      if (newTextLen >= chunkLen) {
-        chunks.push(lastText);
-        lastText = getOneTextOverlapText({ text: lastText, step });
+      // markdown paragraph block: Direct addition; If the chunk size reaches, add a chunk
+      if (isMarkdownSplit || newTextLen >= chunkLen) {
+        chunks.push(`${currentTitle}${lastText}`);
+
+        lastText = isMarkdownSplit ? '' : getOneTextOverlapText({ text: lastText, step });
       }
     }
 
@@ -168,7 +201,7 @@ export const splitText2Chunks = (props: {
       if (lastText.length < chunkLen * 0.4) {
         chunks[chunks.length - 1] = chunks[chunks.length - 1] + lastText;
       } else {
-        chunks.push(lastText);
+        chunks.push(`${mdTitle}${lastText}`);
       }
     }
 
@@ -179,8 +212,9 @@ export const splitText2Chunks = (props: {
     const chunks = splitTextRecursively({
       text,
       step: 0,
-      lastText: ''
-    });
+      lastText: '',
+      mdTitle: ''
+    }).map((chunk) => chunk.replaceAll(codeBlockMarker, '\n')); // restore code block
 
     const tokens = chunks.reduce((sum, chunk) => sum + countPromptTokens(chunk, 'system'), 0);
 

packages/global/common/system/utils.ts

@@ -0,0 +1,6 @@
+export const delay = (ms: number) =>
+  new Promise((resolve) => {
+    setTimeout(() => {
+      resolve('');
+    }, ms);
+  });