From 2b77640618425c015bb8e35c06c5ad4eb290ac72 Mon Sep 17 00:00:00 2001
From: Jan Tuomi <jan-sebastian.tuomi@aalto.fi>
Date: Sun, 9 Oct 2016 14:14:47 +0300
Subject: Add append after line

---
 editor.cpp | 23 +++++++++++++++++++++++
 editor.h   |  2 ++
 2 files changed, 25 insertions(+)

diff --git a/editor.cpp b/editor.cpp
index 80add20..6c86447 100644
--- a/editor.cpp
+++ b/editor.cpp
@@ -33,6 +33,9 @@ int Editor::run_editor() {
         case 'd':
             delete_and_clamp_command();
             break;
+        case 'a':
+            append_after_command();
+            break;
         default:
             break;
         }
@@ -165,3 +168,23 @@ int Editor::delete_and_clamp(int line) {
     m_contents->erase(m_contents->begin() + line);
     return 0;
 }
+
+int Editor::append_after_command() {
+    std::cout << "Append after which line? ";
+    int line;
+    std::cin >> line;
+    if (std::cin.fail() || line < 0 || line >= m_contents->size()) {
+        std::cout << "Not a valid line number!\n";
+        std::cin.clear();
+        std::cin.ignore(std::numeric_limits<std::streamsize>::max(),'\n');
+        return 1;
+    }
+
+    return append_after_line(line);
+}
+
+int Editor::append_after_line(int line) {
+    m_contents->insert(m_contents->begin() + line + 1, "");
+    return edit_line(line + 1);
+}
+
diff --git a/editor.h b/editor.h
index 645ab63..bb429bd 100644
--- a/editor.h
+++ b/editor.h
@@ -22,11 +22,13 @@ class Editor {
         int write_command();
         int quit_command();
         int delete_and_clamp_command();
+        int append_after_command();
 
         int edit_line(int line);
         int move_to_line(int line);
         int write();
         int delete_and_clamp(int line);
+        int append_after_line(int line);
 };
 
 #endif
-- 
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