From 9a97d4d6459252f84a0c3a8b6833ba58ae92a175 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Thu, 6 Nov 2014 13:22:21 -0600
Subject: BAS: Conditional compile out use of ftruncate()

---
 apps/interpreters/bas/fs.c | 54 ++++++++++++++++++++--------------------------
 1 file changed, 23 insertions(+), 31 deletions(-)

(limited to 'apps')

diff --git a/apps/interpreters/bas/fs.c b/apps/interpreters/bas/fs.c
index df4258d1f..790774543 100644
--- a/apps/interpreters/bas/fs.c
+++ b/apps/interpreters/bas/fs.c
@@ -285,43 +285,24 @@ static int edit(int chn, int onl)
 #else
       if ((f->inCapacity + 1) < sizeof(f->inBuf))
         {
-          /* Ignore carriage returns that may accompnay a CRLF sequence.
-           * REVISIT:  Some environments may have other line termination rules
-           */
-
-          if (ch != '\r')
+          if (ch != '\n')
             {
-              /* Is this a new line character */
-
-              if (ch != '\n')
+              if (ch >= '\0' && ch < ' ')
                 {
-                  /* No.. escape control characters other than newline and
-                   * carriage return
-                   */
-
-                  if (ch >= '\0' && ch < ' ')
-                    {
-                      FS_putChar(chn, '^');
-                      FS_putChar(chn, ch ? (ch + 'a' - 1) : '@');
-                    }
-
-                  /* Output normal, printable characters */
-
-                  else
-                    {
-                      FS_putChar(chn, ch);
-                    }
+                  FS_putChar(chn, '^');
+                  FS_putChar(chn, ch ? (ch + 'a' - 1) : '@');
                 }
-
-              /* Echo the newline (or not) */
-
-              else if (onl)
+              else
                 {
-                  FS_putChar(chn, '\n');
+                  FS_putChar(chn, ch);
                 }
-
-              f->inBuf[f->inCapacity++] = ch;
             }
+          else if (onl)
+            {
+              FS_putChar(chn, '\n');
+            }
+
+          f->inBuf[f->inCapacity++] = ch;
         }
 #endif
     }
@@ -832,6 +813,7 @@ int FS_lock(int chn, off_t offset, off_t length, int mode, int w)
 
 int FS_truncate(int chn)
 {
+#ifdef CONFIG_INTERPRETER_BAS_HAVE_FTRUNCATE
   int fd;
   off_t o;
 
@@ -862,6 +844,10 @@ int FS_truncate(int chn)
     }
 
   return 0;
+#else
+  FS_errmsg = strerror(ENOSYS);
+  return -1;
+#endif
 }
 
 void FS_shellmode(int dev)
@@ -1683,6 +1669,12 @@ int FS_appendToString(int chn, struct String *s, int onl)
                   f->inSize = f->inCapacity = 0;
                 }
 
+              if (s->length >= 2 && s->character[s->length - 2] == '\r')
+                {
+                  s->character[s->length - 2] = '\n';
+                  --s->length;
+                }
+
               return 0;
             }
         }
-- 
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