From 1b6682c78518228b705cab2afd5a9eb595a90bbd Mon Sep 17 00:00:00 2001 From: Roland Reichwein Date: Fri, 24 Apr 2020 11:57:28 +0200 Subject: HTML formatting --- plugins/weblog/weblog.cpp | 82 ++++++++++++++++++++++++++++++++++++----------- 1 file changed, 64 insertions(+), 18 deletions(-) (limited to 'plugins') diff --git a/plugins/weblog/weblog.cpp b/plugins/weblog/weblog.cpp index b24573f..92162db 100644 --- a/plugins/weblog/weblog.cpp +++ b/plugins/weblog/weblog.cpp @@ -9,6 +9,7 @@ #include #include #include +#include #include using namespace std::string_literals; @@ -172,15 +173,29 @@ namespace { return {result.begin(), result.begin() + size}; } + std::string plainTextFromPTree(const pt::ptree& tree) + { + std::string result; + + for (auto child: tree) { + if (child.first == "") + result += child.second.data(); + else + result += plainTextFromPTree(child.second); + } + + return result; + } + // returns plain text of string (html xml elements removed) - std::string plainText(const std::string& text) + std::string plainTextFromHTML(const std::string& text) { pt::ptree tree; std::istringstream ss{text}; - pt::read_xml(ss, tree, pt::xml_parser::no_comments | pt::xml_parser::trim_whitespace); + pt::read_xml(ss, tree, pt::xml_parser::no_comments | pt::xml_parser::no_concat_text); - return tree.get("file"); + return plainTextFromPTree(tree); } std::string verbatimText(std::string text) @@ -191,6 +206,8 @@ namespace { return "

"s + text + "

"; } + std::regex re{"\\.[[:space:]\"]", std::regex::basic}; + // returns teaser of article in plain text std::string shortVersion(const fs::path& path) { @@ -207,39 +224,68 @@ namespace { // convert html to plaintext, if tagged as such // default: text/html if (it == metaData.end() || it->second == "text/html") - article = plainText(article); + article = plainTextFromHTML(article); - size_t pos1 {article.find(".")}; - - size_t num {std::min(static_cast(1000), pos1) + 1}; + size_t pos{1000}; - return article.substr(0, num); + std::smatch match; + if (std::regex_search(article, match, re)) { + pos = std::min(pos, static_cast(match.position() + match.length())); + } + + return article.substr(0, pos); } + class HtmlPage + { + static const std::string header; + static const std::string footer; + + std::string mContents; + + public: + HtmlPage(std::string s = ""s): mContents(s) + { + } + + HtmlPage& operator+=(const std::string& s) + { + mContents += s; + return *this; + } + + operator std::string() const + { + return header + mContents + footer; + } + }; + + const std::string HtmlPage::header{""}; + const std::string HtmlPage::footer{"

Impressum, Datenschutzerklärung"}; + std::string generateIndexPage(fs::path& path, std::function& GetRequestParam, std::function& SetResponseHeader) { try { - std::string result{"

"s + GetRequestParam("WEBLOG_NAME") + "

"s}; - + HtmlPage htmlPage{"

"s + GetRequestParam("WEBLOG_NAME") + "

"s}; + fs::path link{ GetRequestParam("rel_target")}; auto list{getArticleList(path)}; + if (list.empty()) + htmlPage += "(no articles found.)"; for (const auto& article: list) { std::string linkstart{""}; std::string linkend{""}; - result += "

"s + linkstart + article.subject + linkend + "

"s + article.date + "
"s; + htmlPage += "

"s + linkstart + article.subject + linkend + "

"s + article.date + "
"s; auto sv{shortVersion(article.path)}; if (sv.size()) { - result += sv + " "s + linkstart + "more..." + linkend; + htmlPage += sv + " "s + linkstart + "more..." + linkend; } } - result += "

"; - result += "Impressum"; - result += ""; - return result; + return htmlPage; } catch (const std::exception& ex) { return HttpStatus("500", "Reading Index page: "s + ex.what(), SetResponseHeader); } @@ -263,9 +309,9 @@ namespace { if (it != metaData.end() && it->second == "text/plain") data = verbatimText(data); - std::string result { "

"s + metaData.at("Subject") + "

"s + metaData.at("Date") + "

"s + data + ""s}; + HtmlPage htmlPage{"

"s + metaData.at("Subject") + "

"s + metaData.at("Date") + "

"s + data}; - return result; + return htmlPage; } catch (const std::exception& ex) { return HttpStatus("500", "Reading Article: "s + ex.what(), SetResponseHeader); } -- cgit v1.2.3