Remove get for operator

src/CMakeLists.txt

@@ -8,9 +8,11 @@ add_executable(${PROJECT_NAME}
         stringutil.hpp
         stringutil.cpp
         Tui.cpp
-        Tui.h
-        Command.h
+        Tui.hpp
+        Command.hpp
         Command.cpp
+        Pager.cpp
+        Pager.hpp
 )
 
 target_link_libraries(${PROJECT_NAME} PRIVATE LibXml2::LibXml2 cpr::cpr)

src/Command.cpp

@@ -1,4 +1,12 @@
-#include "Command.h"
+//  _____         _  _____
+// |_   _|____  _| ||_   _|_   __
+//   | |/ _ \ \/ / __|| | \ \ / /
+//   | |  __/>  <| |_ | |  \ V /
+//   |_|\___/_/\_\\__||_|   \_/
+// Author: Love Billenius <lovebillenius@disroot.org>
+// License: GPL-3
+
+#include "Command.hpp"
 
 #include <iostream>
 

src/Command.hpp

@@ -1,3 +1,11 @@
+//  _____         _  _____
+// |_   _|____  _| ||_   _|_   __
+//   | |/ _ \ \/ / __|| | \ \ / /
+//   | |  __/>  <| |_ | |  \ V /
+//   |_|\___/_/\_\\__||_|   \_/
+// Author: Love Billenius <lovebillenius@disroot.org>
+// License: GPL-3
+
 #pragma once
 
 #include <string>

src/Page.cpp

@@ -48,16 +48,8 @@ void italize_numbers(std::string &content, size_t leave_chars = 0) {
     }
 }
 
-void pretty_format_page(std::string &content) {
-    content.insert(0, ansi::BOLD);
-    const 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(const int number): m_number(number), m_subpage(fetchSubpage()) {
 }
 
 Page Page::operator--(int) const {
@@ -75,6 +67,18 @@ Page &Page::operator-=(int) {
 }
 
 std::string Page::str_pretty() const {
+    std::string content = str();
+    content.insert(0, ansi::BOLD);
+    size_t line_end = content.find('\n');
+    if (line_end == std::string::npos)
+        line_end = content.size();
+    content.insert(line_end, ansi::CLEAR);
+
+    italize_numbers(content, line_end + ansi::CLEAR.size());
+    return content;
+}
+
+std::string Page::str() const {
     std::string ret;
 
     std::istringstream stream(m_subpage);
@@ -82,10 +86,9 @@ std::string Page::str_pretty() const {
     while (std::getline(stream, line))
         ret += line + "\n";
 
-    string_utils::limitConsecutiveWhitespace(ret, MAX_WHITESPACE);
-    string_utils::removeTrailingWhitespace(ret);
+    string_utils::limit_consecutive_whitespace(ret, MAX_WHITESPACE);
+    string_utils::remove_trailing_whitespace(ret);
 
-    pretty_format_page(ret);
     return ret;
 }
 

src/Page.hpp

@@ -12,17 +12,16 @@
 #include <string>
 #include <cstdint>
 
-static constexpr uint_fast8_t DEFAULT_NUMBER = 100;
-static constexpr uint_fast8_t MAX_WHITESPACE = 2;
+static constexpr int DEFAULT_NUMBER = 100;
+static constexpr int MAX_WHITESPACE = 2;
 
-class Page
-{
+class Page {
 private:
-    uint_fast8_t m_number;
+    int m_number;
     std::string m_subpage;
 
 public:
-    explicit Page(uint_fast8_t number = DEFAULT_NUMBER);
+    explicit Page(int number = DEFAULT_NUMBER);
 
     Page operator--(int) const;
 
@@ -34,6 +33,8 @@ public:
 
     [[nodiscard]] std::string str_pretty() const;
 
+    [[nodiscard]] std::string str() const;
+
     bool refresh();
 
 private:

src/Pager.cpp

@@ -0,0 +1,50 @@
+//  _____         _  _____
+// |_   _|____  _| ||_   _|_   __
+//   | |/ _ \ \/ / __|| | \ \ / /
+//   | |  __/>  <| |_ | |  \ V /
+//   |_|\___/_/\_\\__||_|   \_/
+// Author: Love Billenius <lovebillenius@disroot.org>
+// License: GPL-3
+
+
+#include "Pager.hpp"
+
+Page &Pager::seek(const int number) {
+    Page &page = get_page_at(number);
+    m_page_number = number;
+    return page;
+}
+
+Pager &Pager::operator+=(const int number) {
+    seek(m_page_number + number);
+    return *this;
+}
+
+Pager &Pager::operator-=(const int number) {
+    seek(m_page_number - number);
+    return *this;
+}
+
+Page &Pager::operator*() {
+    return get_page_at(m_page_number);
+}
+
+Page *Pager::operator->() {
+    return &get_page_at(m_page_number);
+}
+
+void Pager::set(const int number) {
+    m_page_number = number;
+}
+
+void Pager::clear() {
+    m_pages.clear();
+}
+
+Page &Pager::get_page_at(const int number) {
+    if (!m_pages.contains(number)) {
+        const Page p(number);
+        m_pages[number] = p;
+    }
+    return m_pages.at(number);
+}

src/Pager.hpp

@@ -0,0 +1,40 @@
+//  _____         _  _____
+// |_   _|____  _| ||_   _|_   __
+//   | |/ _ \ \/ / __|| | \ \ / /
+//   | |  __/>  <| |_ | |  \ V /
+//   |_|\___/_/\_\\__||_|   \_/
+// Author: Love Billenius <lovebillenius@disroot.org>
+// License: GPL-3
+
+#pragma once
+
+#include <unordered_map>
+
+#include "Page.hpp"
+
+
+class Pager {
+public:
+    Pager() = default;
+
+    Page &seek(int number);
+
+    Pager &operator+=(int number);
+
+    Pager &operator-=(int number);
+
+    Page &operator*();
+
+    Page *operator->();
+
+    void set(int number);
+
+    void clear();
+
+private:
+    Page &get_page_at(int number);
+
+private:
+    std::unordered_map<int, Page> m_pages{};
+    int m_page_number = 100;
+};

src/Tui.cpp

@@ -1,16 +1,24 @@
-#include "Tui.h"
+//  _____         _  _____
+// |_   _|____  _| ||_   _|_   __
+//   | |/ _ \ \/ / __|| | \ \ / /
+//   | |  __/>  <| |_ | |  \ V /
+//   |_|\___/_/\_\\__||_|   \_/
+// Author: Love Billenius <lovebillenius@disroot.org>
+// License: GPL-3
+
+#include "Tui.hpp"
 
 #include <iostream>
 #include <optional>
 #include <ostream>
 #include <utility>
 
-#include "Command.h"
+#include "Command.hpp"
+#include "Pager.hpp"
 
-Tui::Tui(Page page) : m_page(std::move(page)) {
+Tui::Tui(Pager pager) : m_pager(std::move(pager)) {
 }
 
-
 std::optional<int> get_page_number(const std::string_view line) {
     const size_t space = line.find_first_of(' ');
     if (space == std::string::npos)
@@ -42,27 +50,47 @@ void printHelp() {
 }
 
 void Tui::run() {
-    std::cout << m_page.str_pretty() << std::endl;
+    clear_console();
+    std::cout << m_pager->str_pretty() << std::endl;
     for (;;) {
         std::cout << "Enter a command: ";
         std::flush(std::cout);
-        const Command::Command command = Command::readCommand();
+        Command::Command command;
+        try {
+            command = Command::readCommand();
+        } catch (const Command::NoNumberException &e) {
+            std::cout << e.what() << std::endl;
+            continue;
+        }
 
         bool should_exit = false;
-        auto visitor = [this, &should_exit]<typename T0>(T0 &&arg) {
+        bool should_output = false;
+        auto visitor = [this, &should_exit, &should_output]<typename T0>(T0 &&arg) {
             using T = std::decay_t<T0>;
 
             if constexpr (std::is_same_v<T, Command::None>) {
                 std::cout << "Invalid command!" << std::endl;
             } else if constexpr (std::is_same_v<T, Command::Next>) {
-                m_page += 1;
-                std::cout << m_page.str_pretty() << std::endl;
+                try {
+                    std::cout << "Fetching..." << std::endl;
+                    m_pager += 1;
+                } catch (const std::runtime_error &e) {
+                    std::cout << e.what() << std::endl;
+                    return;
+                }
+                should_output = true;
             } else if constexpr (std::is_same_v<T, Command::Previous>) {
-                m_page -= 1;
-                std::cout << m_page.str_pretty() << std::endl;
+                try {
+                    std::cout << "Fetching..." << std::endl;
+                    m_pager -= 1;
+                } catch (const std::runtime_error &e) {
+                    std::cout << e.what() << std::endl;
+                    return;
+                }
+                should_output = true;
             } else if constexpr (std::is_same_v<T, Command::Refresh>) {
-                m_page.refresh();
-                std::cout << m_page.str_pretty() << std::endl;
+                m_pager.clear();
+                should_output = true;
             } else if constexpr (std::is_same_v<T, Command::Exit>) {
                 should_exit = true;
             } else if constexpr (std::is_same_v<T, Command::Help>) {
@@ -70,12 +98,33 @@ void Tui::run() {
             } else if constexpr (std::is_same_v<T, Command::Seek>) {
                 const Command::Seek &seek = arg;
                 const int number = seek.number;
-                m_page = Page(number);
-                std::cout << m_page.str_pretty() << std::endl;
+                try {
+                    std::cout << "Fetching..." << std::endl;
+                    m_pager.seek(number);
+                } catch (const std::runtime_error &e) {
+                    std::cout << e.what() << std::endl;
+                    return;
+                }
+                should_output = true;
             }
         };
         std::visit(visitor, command);
         if (should_exit)
             return;
+
+        clear_console();
+        if (should_output)
+            std::cout << m_pager->str_pretty() << std::endl;
     }
 }
+
+void Tui::clear_console() {
+    const auto CMD =
+#ifdef _WIN32 || _WIN64
+             "cls";
+#else
+            "clear";
+#endif
+
+    system(CMD);
+}

src/Tui.h

@@ -1,13 +0,0 @@
-#pragma once
-#include "Page.hpp"
-
-
-class Tui {
-public:
-    Tui(Page page);
-
-    void run();
-
-private:
-    Page m_page;
-};

src/Tui.hpp

@@ -0,0 +1,25 @@
+//  _____         _  _____
+// |_   _|____  _| ||_   _|_   __
+//   | |/ _ \ \/ / __|| | \ \ / /
+//   | |  __/>  <| |_ | |  \ V /
+//   |_|\___/_/\_\\__||_|   \_/
+// Author: Love Billenius <lovebillenius@disroot.org>
+// License: GPL-3
+
+#pragma once
+#include "Pager.hpp"
+
+
+class Tui {
+public:
+    Tui(Pager pager);
+
+    void run();
+
+private:;
+
+    static void clear_console();
+
+private:
+    Pager m_pager;
+};

src/ansi.hpp

@@ -1,11 +1,17 @@
+//  _____         _  _____
+// |_   _|____  _| ||_   _|_   __
+//   | |/ _ \ \/ / __|| | \ \ / /
+//   | |  __/>  <| |_ | |  \ V /
+//   |_|\___/_/\_\\__||_|   \_/
+// Author: Love Billenius <lovebillenius@disroot.org>
+// License: GPL-3
 
-namespace ansi
-{
+#pragma once
 
 #include <string>
 
+namespace ansi {
     constexpr std::string_view BOLD = "\033[1m";
     constexpr std::string_view ITALIC = "\033[3m";
     constexpr std::string_view CLEAR = "\033[0m";
-
 } // namespace ansi

src/main.cpp

@@ -1,7 +1,14 @@
-#include "Page.hpp"
-#include "Tui.h"
+//  _____         _  _____
+// |_   _|____  _| ||_   _|_   __
+//   | |/ _ \ \/ / __|| | \ \ / /
+//   | |  __/>  <| |_ | |  \ V /
+//   |_|\___/_/\_\\__||_|   \_/
+// Author: Love Billenius <lovebillenius@disroot.org>
+// License: GPL-3
+
+#include "Tui.hpp"
 
 int main(int argc, char *argv[]) {
-    Tui tui = Page();
+    Tui tui(Pager{});
     tui.run();
 }

src/stringutil.cpp

@@ -1,3 +1,11 @@
+//  _____         _  _____
+// |_   _|____  _| ||_   _|_   __
+//   | |/ _ \ \/ / __|| | \ \ / /
+//   | |  __/>  <| |_ | |  \ V /
+//   |_|\___/_/\_\\__||_|   \_/
+// Author: Love Billenius <lovebillenius@disroot.org>
+// License: GPL-3
+
 #include "stringutil.hpp"
 
 #include <algorithm>
@@ -6,28 +14,28 @@
 
 
 namespace string_utils {
-    bool isAllWhitespace(const std::string &str) {
+    bool is_all_whitespace(const std::string &str) {
         return std::ranges::all_of(str, [](const unsigned char c) -> bool {
             return std::isspace(c);
         });
     }
 
-    void removeTrailingWhitespace(std::string &str) {
+    void remove_trailing_whitespace(std::string &str) {
         auto shouldRemoveTrailingWhitespace = [&str]() -> bool {
             std::size_t last_newline = str.find_last_of('\n');
 
             if (last_newline == std::string::npos)
-                return isAllWhitespace(str);
+                return is_all_whitespace(str);
 
             const std::string last_line = str.substr(last_newline + 1);
-            return isAllWhitespace(last_line);
+            return is_all_whitespace(last_line);
         };
 
         while (shouldRemoveTrailingWhitespace()) {
             const std::size_t last_newline = str.find_last_of('\n');
 
             if (last_newline == std::string::npos) {
-                if (isAllWhitespace(str))
+                if (is_all_whitespace(str))
                     str.clear();
                 break;
             }
@@ -36,11 +44,11 @@ namespace string_utils {
         }
     }
 
-    void removeTabs(std::string &str) {
+    void remove_tabs(std::string &str) {
         std::erase(str, '\t');
     }
 
-    void limitConsecutiveWhitespace(std::string &str, const uint_fast8_t maxWhitespace) {
+    void limit_consecutive_whitespace(std::string &str, const uint_fast8_t maxWhitespace) {
         std::istringstream stream(str);
         std::string line;
         std::ostringstream processedStream;
@@ -49,7 +57,7 @@ namespace string_utils {
         bool hasAddedRealTextJet = false;
 
         while (std::getline(stream, line)) {
-            const bool onlySpace = isAllWhitespace(line);
+            const bool onlySpace = is_all_whitespace(line);
 
             if (!hasAddedRealTextJet) {
                 if (onlySpace)

src/stringutil.hpp

@@ -1,3 +1,11 @@
+//  _____         _  _____
+// |_   _|____  _| ||_   _|_   __
+//   | |/ _ \ \/ / __|| | \ \ / /
+//   | |  __/>  <| |_ | |  \ V /
+//   |_|\___/_/\_\\__||_|   \_/
+// Author: Love Billenius <lovebillenius@disroot.org>
+// License: GPL-3
+
 #pragma once
 
 #include <string>
@@ -15,7 +23,7 @@ namespace string_utils {
      * @return true If all characters in the string are whitespace.
      * @return false Otherwise.
      */
-    bool isAllWhitespace(const std::string& str);
+    bool is_all_whitespace(const std::string& str);
 
     /**
      * @brief Removes trailing whitespace lines from the given string.
@@ -25,14 +33,14 @@ namespace string_utils {
      *
      * @param str The string from which to remove trailing whitespace lines.
      */
-    void removeTrailingWhitespace(std::string& str);
+    void remove_trailing_whitespace(std::string& str);
 
     /**
      * @brief Removes all tab characters from the given string.
      *
      * @param str The string from which to remove tab characters.
      */
-    void removeTabs(std::string& str);
+    void remove_tabs(std::string& str);
 
     /**
      * @brief Limits the number of consecutive whitespace lines in the given string.
@@ -43,6 +51,6 @@ namespace string_utils {
      * @param str The string to process.
      * @param maxWhitespace The maximum allowed consecutive whitespace lines.
      */
-    void limitConsecutiveWhitespace(std::string& str, uint_fast8_t maxWhitespace);
+    void limit_consecutive_whitespace(std::string& str, uint_fast8_t maxWhitespace);
 
 }