Added a getlines function and modified a few things withe test text and buffer. I also made the build script and source script better

build.sh

@@ -1,5 +1,11 @@
 #!/bin/bash
+if [ ! -d obj ]; then
+  mkdir obj
+fi
 cd obj
 g++ ../src/*.cpp -c 
 cd ..
+if [ ! -d bin ]; then
+  mkdir bin
+fi
 g++ obj/*.o -o bin/FileBrowser

source.sh

@@ -1 +1 @@
-alias run="make 1>/dev/null && ./FileBrowser"
+alias run="./build.sh && bin/FileBrowser"

src/Buffer.cpp

@@ -14,6 +14,18 @@ void Buffer::display() const
     }
 }
 
+string* Buffer::get_lines() const
+{
+  string* lines = new string[window_height_];
+  int line = 0;
+  while (line < window_height_ && line + ix_top_line_ < v_lines_.size()) {
+    lines[line - ix_top_line_] = v_lines_[line];
+    ++line;
+  }
+
+  return lines;
+}
+
 bool Buffer::open(const string & new_file_name)
 {
     std::ifstream file(new_file_name);
@@ -28,10 +40,6 @@ bool Buffer::open(const string & new_file_name)
     std::string curr_p, line;
 		while(getline(file, line))
 		{
-			// Remove any newlines that are in the file.
-			for(auto char_loc = line.find_first_of('\n'); char_loc != -1; char_loc = line.find_first_of('\n'))
-				line.erase(char_loc, 1);
-			
 			// Replace break tags with newlines.
 			for(auto char_loc = line.find("<br>"); char_loc != -1; char_loc = line.find("<br>"))
 				line.replace(char_loc, 4, "\n");
@@ -71,7 +79,7 @@ bool Buffer::open(const string & new_file_name)
 				line = extra_text;
 			}
 			// Append any data left on this line to the current paragraph being read.
-			curr_p += line;
+			curr_p += " " + line;
 		}
 
 		// Push the contents of curr_p as it has the last paragraph in the file.

src/Buffer.h

@@ -18,6 +18,7 @@ public:
     void move_to_next_page();
     void move_to_previous_page();
     bool open(const std::string & file_name);
+    std::string* get_lines() const;
     void set_window_height(int h) { window_height_ = h; }
 
 private:

src/FileBrowser.cpp

@@ -9,7 +9,7 @@ void FileBrowser::display()
     const string long_separator(50, '-');
     const string short_separator(8, '-');
 
-    system("cls || clear");
+    //system("cls || clear");
 
     if (!error_message_.empty()) {
         cout << "ERROR: " + error_message_ << endl;
@@ -21,8 +21,10 @@ void FileBrowser::display()
         cout << "<no file opened>\n";
     else
         cout << file_name << endl;
-
     cout << long_separator << endl;
+
+    auto lines = buffer_.get_lines();
+    delete[] lines;
     buffer_.display();
     cout << long_separator << endl;
     cout << "  next  previous  open\n";

test.txt

@@ -3,3 +3,4 @@
 <p> This line has a link to the <a docs/specification.txt specification> file.
 <p> This line is split into <p> two paragraph tags.
 <p> This line contains some<br> problematic<p> tags.
+Derp. Derp. Derp. Derp. Derp.