Module 8: Read the Library from a File

a.c

@@ -7,6 +7,55 @@ using namespace std;
 
 // For compiling C++ code
 // g++ a.c -o a
+
+class Library {
+  public:
+    void ComputeStats() {
+      assert(counts.empty());
+      counts.resize(18);
+      for (string s : words) {
+        int len = s.length();
+        if (len < 18) {
+          counts[len]++;
+        }
+      }
+    }
+    void PrintStats() const {
+      cout << "Here are the counts of each word length:\n";
+      for (int i=1; i<counts.size(); i++) {
+        cout << "[" << i << "] " << counts[i] << "\n";
+      }
+    }
+    string GetWord(int i) const {
+      assert(i >= 0 && i < words.size());
+      return words[i];
+    }
+    void ReadFromFile(string filename) {
+      ifstream f;
+      f.open(filename);
+      while (!f.eof())
+      {
+        string line;
+        getline(f, line);
+        // cout << line << "\n";
+        if (!line.empty())
+        {
+          int len = line.length();
+          if (line[len-1] == '\r') {
+            line = line.substr(0, len-1);
+          }
+          words.push_back(line);
+        }
+      }
+      cout << "Read " << words.size() << " words from file '"
+          << filename << "'\n";
+    }
+  private:
+    vector<string> words;
+    vector<int> counts;
+};
+
+
 struct Grid
 {
   Grid(string n)
@@ -63,9 +112,13 @@ struct Grid
 
 int main()
 {
-  Grid grid("MY GRID");
+  Library lib;
+  lib.ReadFromFile("top_12000.txt");
+  lib.ComputeStats();
+  lib.PrintStats();
 
-  grid.LoadFromFile("test");
-  grid.Check();
-  grid.Print();
+  //Grid grid("MY GRID");
+  //grid.LoadFromFile("test");
+  //grid.Check();
+  //grid.Print();
 }

a.py

@@ -1,3 +1,37 @@
+class Library:
+
+    def __init__(self):
+        # master vector of word
+        self.words = []
+        self.counts = {}
+
+    def ComputeStats(self):
+        # assert self.counts == {}
+        for i in range(18):
+            self.counts[i] = []
+        for s in self.words:
+            _len = len(s)
+            if _len <= 18:
+                self.counts[_len-1].append(_len)
+
+    def PrintStats(self):
+        print("Here are the counts of each word length")
+        for k,v in self.counts.items():
+            # print(v)
+            if k != 0:
+                print(f"[{k}] {len(v)}")
+
+    def GetWord(self, i):
+        assert (i >= 0 and i < len(self.words))
+        return self.words[i]
+
+    def ReadFromFile(self, filename):
+        with open(filename, 'r') as f:
+            for line in f:
+                self.words.append(line)
+        print(f"Read {len(self.words)} words from file '{filename}'")
+
+
 class Grid:
 
     def __init__(self, n):
@@ -32,8 +66,12 @@ class Grid:
             print(f"  {''.join(s)}")
 
 if __name__ == "__main__":
-    grid = Grid("MY GRID")
+    lib = Library()
+    lib.ReadFromFile("top_12000.txt")
+    lib.ComputeStats()
+    lib.PrintStats()
 
-    grid.LoadFromFile("test")
-    grid.Check()
-    grid.Print()
+    # grid = Grid("MY GRID")
+    # grid.LoadFromFile("test")
+    # grid.Check()
+    # grid.Print()