Formatting

src/Page.cpp

@@ -10,26 +10,67 @@
 
 #include <iostream>
 #include <format>
+#include <algorithm>
 
+#include "ansi.hpp"
 #include "stringutil.hpp"
 #include "cpr/cpr.h"
 #include "libxml/HTMLparser.h"
 #include "libxml/xpath.h"
 
 
-Page::Page(const uint_fast8_t number): number(number), subpages(fetchSubpages()) {
+bool is_number(std::string_view s){
+    return std::all_of(s.begin(), s.end(), [](unsigned char c ){
+        return std::isdigit(c);
+    });
+}
+
+void italize_numbers(std::string &content, size_t leave_chars = 0) {
+    size_t end = content.size();
+    
+    // Process backwards, word by word
+    for (;;) {
+        size_t space = content.rfind(' ', end - 1);
+        size_t begin = (space == std::string::npos) ? 0 : space + 1;
+        size_t word_length = end - begin;
+        
+        if (is_number(content.substr(begin, word_length))) {
+            content.insert(end, ansi::CLEAR);
+            content.insert(begin, ansi::ITALIC);
+        }
+        
+        if (space == std::string::npos)
+            break;
+        if (leave_chars >= space)
+            break;
+        
+        end = space;
+    }
+}
+
+void pretty_format_page(std::string &content) {
+    content.insert(0, ansi::BOLD);
+    size_t line_end = content.find("\n");
+    content.insert(line_end, ansi::CLEAR);
+
+    italize_numbers(content, line_end + ansi::CLEAR.size());
+}
+
+
+
+Page::Page(const uint_fast8_t number): m_number(number), m_subpage(fetchSubpage()) {
 }
 
 Page Page::operator--(int) const {
-    return Page(number - 1);
+    return Page(m_number - 1);
 }
 
 Page Page::operator++(int) const {
-    return Page(number + 1);
+    return Page(m_number + 1);
 }
 
 Page &Page::operator-=(int) {
-    number--;
+    m_number--;
     refresh();
     return *this;
 }
@@ -37,38 +78,38 @@ Page &Page::operator-=(int) {
 std::string Page::str() const {
     std::string ret;
 
-    for (const std::string &pageText: subpages) {
+    std::istringstream stream(m_subpage);
-        std::istringstream stream(pageText);
     std::string line;
     while (std::getline(stream, line))
         ret += line + "\n";
 
     string_utils::limitConsecutiveWhitespace(ret, MAX_WHITESPACE);
     string_utils::removeTrailingWhitespace(ret);
-    }
+
+    pretty_format_page(ret);
     return ret;
 }
 
 Page &Page::operator+=(int) {
-    number++;
+    m_number++;
     refresh();
     return *this;
 }
 
 bool Page::refresh() {
-    std::vector<std::string> newSubpages = fetchSubpages();
+    std::string newSubpage = fetchSubpage();
-    const bool replace = !contentEquals(newSubpages);
+    const bool replace = newSubpage != m_subpage;
     if (replace)
-        subpages = newSubpages;
+        m_subpage = newSubpage;
 
     return replace;
 }
 
 std::string Page::url() const {
-    return std::format("https://www.svt.se/svttext/web/pages/{}.html", number);
+    return std::format("https://www.svt.se/svttext/web/pages/{}.html", m_number);
 }
 
-std::vector<std::string> Page::fetchSubpages() const {
+std::string Page::fetchSubpage() const {
     const cpr::Response response = cpr::Get(cpr::Url{url()});
     if (response.status_code / 100 != 2)
         throw std::runtime_error("Page not found");
@@ -91,14 +132,16 @@ std::vector<std::string> Page::fetchSubpages() const {
         throw std::runtime_error("Could not evaluate XPath expression.");
     }
 
-    std::vector<std::string> pages;
+    // There's only one valid page
+    std::string page;
     if (const xmlNodeSetPtr nodes = xpathObj->nodesetval) {
-        for (int i = 0; i < nodes->nodeNr; ++i) {
+        for (int i = 0; i < nodes->nodeNr; i++) {
             xmlChar *content = xmlNodeGetContent(nodes->nodeTab[i]);
             if (!content)
                 continue;
-            pages.emplace_back(reinterpret_cast<const char *>(content));
+            page = reinterpret_cast<const char *>(content);
             xmlFree(content);
+            break;
         }
     }
 
@@ -106,16 +149,5 @@ std::vector<std::string> Page::fetchSubpages() const {
     xmlXPathFreeContext(xpathCtx);
     xmlFreeDoc(doc);
 
-    return pages;
+    return page;
-}
-
-bool Page::contentEquals(const std::vector<std::string> &subpagesOther) const {
-    if (subpagesOther.size() != subpages.size())
-        return false;
-
-    for (std::size_t i = 0; i < subpages.size(); i++)
-        if (subpages[i] != subpagesOther[i])
-            return false;
-
-    return true;
 }

src/Page.hpp

@@ -18,8 +18,8 @@ static constexpr uint_fast8_t MAX_WHITESPACE = 2;
 class Page
 {
 private:
-    uint_fast8_t number{};
+    uint_fast8_t m_number{};
-    std::vector<std::string> subpages;
+    std::string m_subpage;
 
 public:
     explicit Page(uint_fast8_t number = DEFAULT_NUMBER);
@@ -39,7 +39,7 @@ public:
 private:
     [[nodiscard]] std::string url() const;
 
-    [[nodiscard]] std::vector<std::string> fetchSubpages() const;
+    [[nodiscard]] std::string fetchSubpage() const;
 
     [[nodiscard]] bool contentEquals(const std::vector<std::string> &subpagesOther) const;
 };

src/ansi.hpp

@@ -0,0 +1,11 @@
+
+namespace ansi
+{
+
+#include <string>
+
+constexpr std::string_view BOLD = "\033[1m";
+constexpr std::string_view ITALIC = "\033[3m";
+constexpr std::string_view CLEAR = "\033[0m";
+
+} // namespace ansi