Think I nailed it?

1 files changed, 14 insertions, 8 deletions

diff --git a/main.c b/main.c
index 474aa42..b1eb159 100644
--- a/main.c
+++ b/main.c
@@ -40,6 +40,9 @@
 #define ZX_CHAR_TOKEN_HIGH(c) \
     (c >= 0xc0)
 
+#define ZX_CHAR_TOKEN(c) \
+    (ZX_CHAR_TOKEN_LOW(c) || ZX_CHAR_TOKEN_HIGH(c))
+
 #define ZX_BASIC_STATE_LEN 116
 
 #define ZX_CHAR_TOKEN_INTEGRAL(c) \
@@ -268,7 +271,7 @@ static ssize_t zx_dump_basic(int fd) {
     while (1) {
         ssize_t readlen, len, i;
         zx_basic_line line;
-        uint8_t last = 0;
+        uint8_t last = 0xc0;
 
         if ((readlen = read(fd, &line, sizeof(line))) < 0) {
             goto error_io;
@@ -276,27 +279,30 @@ static ssize_t zx_dump_basic(int fd) {
             break;
         }
 
+        len = le16toh(line.len);
+
+        if (be16toh(line.num) == len) {
+            break;
+        }
+
         if (printf("%d", (int)be16toh(line.num)) < 0) {
             goto error_io;
         }
 
-        len = le16toh(line.len);
-
         if (read(fd, buf, len) < 0) {
             goto error_io;
         }
 
         for (i=0; i<len; i++) {
             uint8_t c = ((uint8_t *)buf)[i];
+            int token      = ZX_CHAR_TOKEN(c),
+                token_last = ZX_CHAR_TOKEN(last);
 
-            if (ZX_CHAR_TOKEN_LOW(c) || ZX_CHAR_TOKEN_HIGH(c)
-             || ZX_CHAR_TOKEN_LOW(last) || ZX_CHAR_TOKEN_HIGH(last)) {
+            if (token || token_last) {
                 if (putchar(' ') < 0) {
                     goto error_io;
                 }
-            }
-
-            if (ZX_CHAR_TOKEN_INTEGRAL(c) || ZX_CHAR_TOKEN_FLOAT(c)) {
+            } else if (ZX_CHAR_TOKEN_INTEGRAL(c) || ZX_CHAR_TOKEN_FLOAT(c)) {
                 i += 5;
             }