1 files changed, 68 insertions, 0 deletions
diff --git a/flashcards b/flashcards
new file mode 100755
index 0000000..caf51d8
--- /dev/null
+++ b/flashcards
@@ -0,0 +1,68 @@
+#!/usr/bin/python3
+
+import re
+import sys
+from pathlib import Path
+from random import randint
+
+cardRegex = "CARD: "
+prefixLength = 6
+
+# Returns a list of Path objects, containing the path to each valid file provided
+def getFileList():
+    fileList = []
+    if len(sys.argv) > 1:
+        for f in sys.argv[1:]:
+            path = Path(f)
+            if path.exists() and path.is_file():
+                fileList.append(f)
+        return fileList
+    else:
+        print("Missing arguments")
+        sys.exit()
+
+# Returns cards in the form [(front, back)]
+def createCardList(files):
+    cards = []
+    for f in files:
+        cards = cards + extractCards(f)
+    return cards
+
+# Extracts cards from a single file into a list of the form [(front, back)]
+def extractCards(f):
+    front = ""
+    back = ""
+    cards = []
+    with open(f) as cardFile:
+        for l in cardFile:
+            match = re.match(cardRegex, l)
+            if match:
+                if front != "":
+                    cards.append([front, back])
+                    back = ""
+                front = match.string[prefixLength:]
+            else:
+                back += l
+    return cards
+
+# Loops serving cards to the user until the program is exited
+def serveCards(cards):
+    while True:
+        card = cards[randint(0, len(cards) - 1)]
+        print(card[0])
+        input()
+        print(card[1])
+        input()
+
+def debugCards(cardList):
+    for c in cardList:
+        print("Front:", c[0])
+        print("Back:", c[1])
+
+def main():
+    files = getFileList()
+    cards = createCardList(files)
+    serveCards(cards)
+
+if __name__ == "__main__":
+    main()