From ffd1ce42ba859370829e97a3b6377dbec0ab569d Mon Sep 17 00:00:00 2001
From: perro <hi@perrotuerto.blog>
Date: Mon, 15 May 2023 11:25:14 -0700
Subject: [PATCH] Ejercicio 9a

---
 exercises/ex09/ex09a.py |  90 ++++++++++++++++++++++++++++++++++++++++
 exercises/ex09/mcb      | Bin 0 -> 16384 bytes
 2 files changed, 90 insertions(+)
 create mode 100644 exercises/ex09/ex09a.py
 create mode 100644 exercises/ex09/mcb

diff --git a/exercises/ex09/ex09a.py b/exercises/ex09/ex09a.py
new file mode 100644
index 0000000..711310d
--- /dev/null
+++ b/exercises/ex09/ex09a.py
@@ -0,0 +1,90 @@
+"""
+Project: Extending the Multi-Clipboard
+Page 229
+"""
+
+import sys
+import shelve
+import pyperclip
+from pathlib import Path
+
+
+def help():
+    script = Path(__file__).name
+    print(
+        f"""
+    {script} saves and loads pieces of text to the clipboard.
+    Usage:  python {script} save <key>    Saves clipboard to keyword
+            python {script} <key>         Loads keyword to clipboard
+            python {script} list          Loads all keywords to clipboard
+            python {script} delete <key>  Deletes keyword
+            python {script} wipe          Deletes all keywords
+            python {script} help          Prints this help
+    """.strip()
+    )
+
+
+def save(key, data):
+    if key in data.keys():
+        print(f"ERROR: '{key}' ya existe")
+        sys.exit(1)
+    else:
+        data[key] = pyperclip.paste()
+
+
+def delete(key, data):
+    if key in data.keys():
+        print(f"INFO: '{key}' se ha eliminado")
+        del data[key]
+    else:
+        print(f"ERROR: '{key}' no existe")
+        sys.exit(1)
+
+
+def get(key, data):
+    if key in data.keys():
+        pyperclip.copy(data[key])
+    else:
+        print(f"ERROR: '{key}' no existe")
+        sys.exit(1)
+
+
+def ls(data):
+    for key, val in data.items():
+        txt = val.strip().split("\n")[0]
+        if len(txt) > 100:
+            txt = f"{txt[:97]}..."
+        print(f"{key} -> {txt}")
+
+
+def wipe(data):
+    for key in data.keys():
+        delete(key, data)
+
+
+data = shelve.open("mcb")
+
+if len(sys.argv) == 1:
+    print("ERROR: al menos un argumento es necesario")
+    sys.exit(1)
+
+match sys.argv[1]:
+    case "save" | "delete":
+        if len(sys.argv) == 2:
+            print("ERROR: una palabra clave es necesaria")
+            sys.exit(1)
+        for key in sys.argv[2:]:
+            if sys.argv[1] == "save":
+                save(key, data)
+            else:
+                delete(key, data)
+    case "list":
+        ls(data)
+    case "wipe":
+        wipe(data)
+    case "help":
+        help()
+    case key:
+        get(key, data)
+
+data.close()
diff --git a/exercises/ex09/mcb b/exercises/ex09/mcb
new file mode 100644
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