unibdf2hex: drop redundant null equations in code

diff --git a/src/unibdf2hex.c b/src/unibdf2hex.c
index b421f6a7db268af0cecdd2d5cf57d3bc40bf7ce6..bec84951308c0fe3bac20881ede3eb6596c63abd 100644 (file)
--- a/src/unibdf2hex.c
+++ b/src/unibdf2hex.c
@@ -44,19 +44,21 @@ main()
    int startrow;  /* row to start glyph        */
    unsigned rowout;
 
-   while (fgets (inbuf, MAXBUF - 1, stdin) != NULL) {
-      if (strncmp (inbuf, "ENCODING ", 9) != 0) continue;
+   while (fgets (inbuf, MAXBUF - 1, stdin)) {
+      if (strncmp (inbuf, "ENCODING ", 9)) continue;
       sscanf (&inbuf[9], "%d", &thispoint); /* get code point */
-      /*
-         If we want this code point, get the BBX (bounding box) and
-         BITMAP information.
-      */
-      while (fgets (inbuf, MAXBUF - 1, stdin) != NULL &&
-             strncmp (inbuf, "BBX ", 4) != 0); /* find bounding box */
 
+      /* Read bounding box values from BBX line */
+      while (fgets (inbuf, MAXBUF - 1, stdin)) {
+        if (!strncmp (inbuf, "BBX ", 4)) break;
+      }
       sscanf (&inbuf[4], "%d %d %d %d", &bbxx, &bbxy, &bbxxoff, &bbxyoff);
-      while (fgets (inbuf, MAXBUF - 1, stdin) != NULL &&
-             strncmp (inbuf, "BITMAP", 6) != 0); /* find bitmap start */
+
+      /* Find BITMAP start */
+      while (fgets (inbuf, MAXBUF - 1, stdin)) {
+        if (!strncmp (inbuf, "BITMAP", 6)) break;
+      }
+
       fprintf (stdout, "%04X:", thispoint);
       digitsout = 0;
       /* Print initial blank rows */
@@ -67,8 +69,9 @@ main()
          fprintf (stdout,"0000");
          digitsout += 4;
       }
-      while (fgets (inbuf, MAXBUF - 1, stdin) != NULL &&
-             strncmp (inbuf, "END", 3) != 0) { /* copy bitmap until END */
+      /* Copy bitmap until END */
+      while (fgets (inbuf, MAXBUF - 1, stdin)) {
+         if (!strncmp (inbuf, "END", 3)) break;
          sscanf (inbuf, "%X", &rowout);
          /* Now force glyph to a 16x16 grid even if they'd fit in 8x16 */
          if (bbxx <= 8) rowout <<= 8;  /* shift left for 16x16 glyph */