Initial Commit
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# Markdown2Html
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This simple program is powered by Pandoc. It use pandoc to convert markdown to html. This program just list all markdown files and send them to pandoc. Also, links to markdown files will be changed to links to html files.
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#include <cstdio>
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#include <cstring>
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#include <cstdlib>
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#include <algorithm>
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#include <string>
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#include <memory>
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#include <vector>
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#include <stack>
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#include <fstream>
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#include <windows.h>
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using namespace std;
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char buff[1024];
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string basic_markdown_dir;
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string basic_html_dir;
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void ReadConfig()
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{
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FILE* fp=fopen("config.txt","r");
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if(fp==nullptr)
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{
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printf("Error: Failed to read config.txt...\n");
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exit(0);
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}
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shared_ptr<FILE> sfp(fp,fclose);
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while(1)
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{
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memset(buff,0,1024);
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if(fgets(buff,1000,fp)==nullptr)
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{
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printf("Info: Reach End of file.\n");
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break;
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}
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else
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{
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if(buff[1000])
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{
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printf("Error: Encounter a long line.\n");
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exit(0);
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}
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int sz=strlen(buff);
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if(buff[sz-1]=='\n') buff[sz-1]=0;
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string s(buff);
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size_t idx=s.find('=');
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if(idx==string::npos)
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{
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printf("Warning: Key-Value separator not found in this line, skip.\n");
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continue;
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}
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string key=s.substr(0,idx);
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string value=s.substr(idx+1);
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if(key=="MDDIR") /// Markdown DIR
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{
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basic_markdown_dir=value;
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}
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else if(key=="HTMLDIR")
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{
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basic_html_dir=value;
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}
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}
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}
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}
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/// Search .md and generate a list.
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void SearchMarkdownDir(const string& patternStr,const string& currentDir,vector<string>& vec,vector<string>& DirToMake)
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{
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printf("Debug: Searching Pattern [%s] CurrentDir [%s] \n",patternStr.c_str(),currentDir.c_str());
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WIN32_FIND_DATA fnd;
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HANDLE hand=FindFirstFile(patternStr.c_str(),&fnd);
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if(hand!=INVALID_HANDLE_VALUE)
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{
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do
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{
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if(strcmp(fnd.cFileName,".")==0||strcmp(fnd.cFileName,"..")==0)
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{
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printf("Debug: Found . or ..\n");
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continue;
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}
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string filefullname=currentDir+"\\"+fnd.cFileName;
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if(fnd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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{
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/// It is a subdir.
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printf("Debug: Found Dir %s\n",fnd.cFileName);
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DirToMake.push_back(filefullname);
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SearchMarkdownDir(filefullname+"\\*",filefullname,vec,DirToMake);
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}
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else
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{
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int sz=strlen(fnd.cFileName);
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if(strcmp(fnd.cFileName+sz-3,".md")==0)
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{
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printf("Found: %s\n",filefullname.c_str());
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/// Yes, that's what we want.
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vec.push_back(filefullname);
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}
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}
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}
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while(FindNextFile(hand,&fnd));
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FindClose(hand);
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}
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else
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{
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printf("Debug: Invalid Handle.\n");
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}
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}
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void _ChangeHtmlLink(const string& htmlfile)
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{
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printf("Info: Changing HTML Link [%s]\n",htmlfile.c_str());
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ifstream ifs(htmlfile);
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string text,temp;
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while(getline(ifs,temp)) text.append(temp);
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ifs.close();
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size_t lastidx=0;
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size_t idx=0;
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int cnt=0;
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while((idx=text.find("<a href=",lastidx))!=string::npos)
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{
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string linktab=text.substr(idx,text.find(">",idx)-idx+1);
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printf("Info: Found LinkTab %s\n",linktab.c_str());
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size_t tidx;
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if((tidx=linktab.find(".md"))!=string::npos)
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{
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string newtab=linktab;
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newtab.replace(tidx,3,".html");
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text.replace(idx,linktab.size(),newtab);
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printf("Info: LinkTab --> %s\n",newtab.c_str());
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cnt++;
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printf("Info: %d Link Changed.\n",cnt);
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}
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lastidx=idx+1;
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}
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if(cnt)
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{
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printf("Info: Totally %d link changed.\n",cnt);
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ofstream ofs(htmlfile);
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ofs<<text;
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}
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}
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void _ConvertMarkdownToHTML_Real(const string& SourceMarkdown,const string& TargetHTML)
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{
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string command=string("D:\\pandoc.exe -f markdown -t html ")+SourceMarkdown+" -o "+TargetHTML;
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printf("Executing...: %s\n",command.c_str());
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system(command.c_str());
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_ChangeHtmlLink(TargetHTML);
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}
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/// Convert Markdown to HTML
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void ConvertMarkdown(const vector<string>& vec,const vector<string>& DirToCreate)
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{
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for(auto iter=DirToCreate.begin();iter!=DirToCreate.end();++iter)
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{
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printf("Info: Creating Directory [%s]\n",iter->c_str());
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string dststr=basic_html_dir+iter->substr(basic_markdown_dir.size(),iter->size()-basic_markdown_dir.size());
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/// Create Directory.
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CreateDirectory(dststr.c_str(),NULL);
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}
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for(auto iter=vec.begin();iter!=vec.end();++iter)
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{
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string dststr=basic_html_dir+iter->substr(basic_markdown_dir.size(),iter->size()-basic_markdown_dir.size()-3)+".html";
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_ConvertMarkdownToHTML_Real(*iter,dststr);
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}
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}
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int main()
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{
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printf("======================\n"
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"MarkdownBlogEngine Started.\n"
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"Written by Kiritow.\n"
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"Powered by Pandoc.\n"
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"HC 2017 | HC TECH 2017 \n"
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"=======================\n");
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printf("Reading config.txt...\n");
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ReadConfig();
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if(basic_markdown_dir.empty ()||basic_html_dir.empty())
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{
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printf("Error: Markdown/HTML Dir is Empty.\n");
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return 0;
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}
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else
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{
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printf("Info: Markdown DIR: %s \nInfo: HTML DIR: %s\n",basic_markdown_dir.c_str(),basic_html_dir.c_str());
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}
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vector<string> mdvec;
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vector<string> dirvec;
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string patternstr=basic_markdown_dir+"\\*";
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SearchMarkdownDir(patternstr,basic_markdown_dir,mdvec,dirvec);
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if(mdvec.empty())
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{
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printf("Error: No Markdown File found.\n");
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return 0;
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}
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printf("Info: Start Converting...\n");
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ConvertMarkdown(mdvec,dirvec);
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printf("Info: Convert Finished.\n");
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return 0;
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}
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