add headers markup support

src/app/browser/main/tab/page/content/text/gemini/reader.cpp

@@ -41,6 +41,30 @@ Reader::Reader(
 }
 
 // Match tools
+bool Reader::Line::Match::header(
+    const Glib::ustring & GEMTEXT,
+    int & level,
+    Glib::ustring & text
+) {
+    auto match = Glib::Regex::split_simple(
+        R"regex(^(#{1,3})(.*)$)regex",
+        GEMTEXT
+    );
+
+    int index = 0; for (const Glib::ustring & MATCH : match)
+    {
+        switch (index)
+        {
+            case 1: level = MATCH.length(); break;
+            case 2: text  = MATCH; break;
+        }
+
+        index++;
+    }
+
+    return level > 0 && !text.empty();
+}
+
 bool Reader::Line::Match::link(
     const Glib::ustring & GEMTEXT,
     Glib::ustring & address,
@@ -81,7 +105,23 @@ Glib::ustring Reader::make(
 
     while (std::getline(stream, line))
     {
-        // Links
+        // Header
+        int level;
+        Glib::ustring text;
+
+        if (Line::Match::header(line, level, text))
+        {
+            pango.append(
+                Reader::Make::header(
+                    level,
+                    text
+                )
+            );
+
+            continue;
+        }
+
+        // Link
         Glib::ustring address;
         Glib::ustring date;
         Glib::ustring alt;
@@ -95,25 +135,61 @@ Glib::ustring Reader::make(
                     alt
                 )
             );
-        }
 
-        else
-        {
-            pango.append(
-                line
-            );
+            continue;
         }
 
         // @TODO other tags..
 
         pango.append(
-            "\n" // @TODO
+            line.append(
+                "\n"
+            ) // @TODO
         );
     }
 
     return pango;
 }
 
+Glib::ustring Reader::Make::header(
+    const int & LEVEL,
+    const Glib::ustring & VALUE
+) {
+    switch (LEVEL)
+    {
+        case 1:
+
+            return Glib::ustring::sprintf(
+                "<span size=\"xx-large\">%s</span>\n",
+                Glib::Markup::escape_text(
+                    VALUE
+                )
+            );
+
+        case 2:
+
+            return Glib::ustring::sprintf(
+                "<span size=\"x-large\">%s</span>\n",
+                Glib::Markup::escape_text(
+                    VALUE
+                )
+            );
+
+        case 3:
+
+            return Glib::ustring::sprintf(
+                "<span size=\"large\">%s</span>\n",
+                Glib::Markup::escape_text(
+                    VALUE
+                )
+            );
+
+        default:
+
+            throw _("Header level not supported"); // @TODO
+    }
+}
+
 Glib::ustring Reader::Make::link(
     const Glib::ustring & ADDRESS,
     const Glib::ustring & DATE,
@@ -136,7 +212,7 @@ Glib::ustring Reader::Make::link(
     }
 
     return Glib::ustring::sprintf(
-        "<a href=\"%s\" title=\"%s\">%s</a>",
+        "<a href=\"%s\" title=\"%s\">%s</a>\n",
         Glib::Markup::escape_text(
             ADDRESS // @TODO to absolute
         ),

src/app/browser/main/tab/page/content/text/gemini/reader.hpp

@@ -1,6 +1,7 @@
 #ifndef APP_BROWSER_MAIN_TAB_PAGE_CONTENT_TEXT_GEMINI_READER_HPP
 #define APP_BROWSER_MAIN_TAB_PAGE_CONTENT_TEXT_GEMINI_READER_HPP
 
+#include <glibmm/i18n.h>
 #include <glibmm/markup.h>
 #include <glibmm/regex.h>
 #include <glibmm/ustring.h>
@@ -18,6 +19,12 @@ namespace app::browser::main::tab::page::content::text::gemini
         {
             struct Match
             {
+                static bool header(
+                    const Glib::ustring & GEMTEXT,
+                    int & level,
+                    Glib::ustring & text
+                );
+
                 static bool link(
                     const Glib::ustring & GEMTEXT,
                     Glib::ustring & address,
@@ -29,6 +36,11 @@ namespace app::browser::main::tab::page::content::text::gemini
 
         struct Make
         {
+            static Glib::ustring header(
+                const int & LEVEL,
+                const Glib::ustring & VALUE
+            );
+
             static Glib::ustring link(
                 const Glib::ustring & ADDRESS,
                 const Glib::ustring & DATE,