Modified word_distance to work with paragraph file names instead

phrase_distance.c

@@ -16,10 +16,11 @@
 #include <string.h>
 #include <math.h>
 #include <malloc.h>
+#include <limits.h>
 
 const long long max_size = 2000;         // max length of strings
 const long long N = 40;                  // number of closest words that will be shown
-const long long max_w = 50;              // max length of vocabulary entries
+const long long max_w = PATH_MAX;              // max length of file names
 
 int main(int argc, char **argv) {
   FILE *f;
@@ -30,9 +31,9 @@ int main(int argc, char **argv) {
   long long words, size, a, b, c, d, cn, bi[100];
   char ch;
   float *M;
-  char *vocab;
+  char *files;
   if (argc < 2) {
-    printf("Usage: ./distance <FILE>\nwhere FILE contains word projections in the BINARY FORMAT\n");
+    printf("Usage: ./distance <FILE>\nwhere FILE contains phrase projections in the BINARY FORMAT\n");
     return 0;
   }
   strcpy(file_name, argv[1]);
@@ -43,15 +44,15 @@ int main(int argc, char **argv) {
   }
   fscanf(f, "%lld", &words);
   fscanf(f, "%lld", &size);
-  vocab = (char *)malloc((long long)words * max_w * sizeof(char));
+  files = (char *)malloc((long long)words * max_w * sizeof(char));
   for (a = 0; a < N; a++) bestw[a] = (char *)malloc(max_size * sizeof(char));
   M = (float *)malloc((long long)words * (long long)size * sizeof(float));
   if (M == NULL) {
     printf("Cannot allocate memory: %lld MB    %lld  %lld\n", (long long)words * size * sizeof(float) / 1048576, words, size);
     return -1;
   }
   for (b = 0; b < words; b++) {
-    fscanf(f, "%s%c", &vocab[b * max_w], &ch);
+    fscanf(f, "%s%c", &files[b * max_w], &ch);
     for (a = 0; a < size; a++) fread(&M[a + b * size], sizeof(float), 1, f);
     len = 0;
     for (a = 0; a < size; a++) len += M[a + b * size] * M[a + b * size];
@@ -62,7 +63,7 @@ int main(int argc, char **argv) {
   while (1) {
     for (a = 0; a < N; a++) bestd[a] = 0;
     for (a = 0; a < N; a++) bestw[a][0] = 0;
-    printf("Enter word or sentence (EXIT to break): ");
+    printf("Enter file name (EXIT to break): ");
     a = 0;
     while (1) {
       st1[a] = fgetc(stdin);
@@ -90,7 +91,7 @@ int main(int argc, char **argv) {
     }
     cn++;
     for (a = 0; a < cn; a++) {
-      for (b = 0; b < words; b++) if (!strcmp(&vocab[b * max_w], st[a])) break;
+      for (b = 0; b < words; b++) if (!strcmp(&files[b * max_w], st[a])) break;
       if (b == words) b = -1;
       bi[a] = b;
       printf("\nWord: %s  Position in vocabulary: %lld\n", st[a], bi[a]);
@@ -125,7 +126,7 @@ int main(int argc, char **argv) {
             strcpy(bestw[d], bestw[d - 1]);
           }
           bestd[a] = dist;
-          strcpy(bestw[a], &vocab[c * max_w]);
+          strcpy(bestw[a], &files[c * max_w]);
           break;
         }
       }