NSH: Separate command line parsing from command execution. Add support for multiple, semicolone separated commands on each line

Documentation/NuttShell.html

@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttShell (NSH)</i></font></big></h1>
-      <p>Last Updated: December 5, 2013</p>
+      <p>Last Updated: January 10, 2014</p>
     </td>
   </tr>
 </table>
@@ -543,6 +543,11 @@ nsh&gt;
   The default niceness is 10.
 </p>
 
+<p>
+  <b>Multiple commands per line</b>.
+  NSH will accept multiple commands per command line with each command separated with the semi-colon character (;).
+</p>
+
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
@@ -2650,6 +2655,13 @@ nsh>
       Default: 80
     </td>
   </tr>
+  <tr>
+    <td valign="top"><b><code>CONFIG_NSH_DISABLE_SEMICOLON</code></b></td>
+    <td>
+      By default, you can enter multiple NSH commands on a line with each command separated by a semicolon.
+      You can disable this feature to save a little memory on FLASH challenged platforms.
+      Default: n
+    </td>
   </tr>
   <tr>
     <td valign="top"><b><code>CONFIG_NSH_NESTDEPTH</code></b></td>

configs/freedom-kl25z/minnsh/defconfig

@@ -603,6 +603,7 @@ CONFIG_NSH_DISABLE_WGET=y
 CONFIG_NSH_CODECS_BUFSIZE=128
 CONFIG_NSH_FILEIOSIZE=64
 CONFIG_NSH_LINELEN=80
+CONFIG_NSH_DISABLE_SEMICOLON=y
 CONFIG_NSH_MAXARGUMENTS=6
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=y

configs/sim/nsh/defconfig

@@ -40,7 +40,9 @@ CONFIG_HOST_LINUX=y
 #
 # CONFIG_DEBUG is not set
 # CONFIG_ARCH_HAVE_STACKCHECK is not set
+# CONFIG_ARCH_HAVE_HEAPCHECK is not set
 CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DEBUG_NOOPT=y
 
 #
 # System Type
@@ -70,7 +72,7 @@ CONFIG_ARCH="sim"
 # CONFIG_ARCH_NOINTC is not set
 # CONFIG_ARCH_VECNOTIRQ is not set
 # CONFIG_ARCH_DMA is not set
-# CONFIG_ARCH_IRQPRIO is not set
+# CONFIG_ARCH_HAVE_IRQPRIO is not set
 # CONFIG_CUSTOM_STACK is not set
 # CONFIG_ADDRENV is not set
 # CONFIG_ARCH_HAVE_VFORK is not set
@@ -85,6 +87,12 @@ CONFIG_ARCH="sim"
 CONFIG_BOARD_LOOPSPERMSEC=0
 # CONFIG_ARCH_CALIBRATION is not set
 
+#
+# Interrupt options
+#
+# CONFIG_ARCH_HAVE_INTERRUPTSTACK is not set
+# CONFIG_ARCH_HAVE_HIPRI_INTERRUPT is not set
+
 #
 # Boot options
 #
@@ -121,6 +129,7 @@ CONFIG_NSH_MMCSDMINOR=0
 #
 # CONFIG_BOARD_INITIALIZE is not set
 CONFIG_MSEC_PER_TICK=10
+# CONFIG_SYSTEM_TIME64 is not set
 CONFIG_RR_INTERVAL=0
 # CONFIG_SCHED_INSTRUMENTATION is not set
 CONFIG_TASK_NAME_SIZE=32
@@ -191,13 +200,17 @@ CONFIG_DEV_NULL=y
 # CONFIG_LOOP is not set
 # CONFIG_RAMDISK is not set
 # CONFIG_CAN is not set
+# CONFIG_ARCH_HAVE_PWM_PULSECOUNT is not set
 # CONFIG_PWM is not set
+# CONFIG_ARCH_HAVE_I2CRESET is not set
 # CONFIG_I2C is not set
 # CONFIG_SPI is not set
+# CONFIG_I2S is not set
 # CONFIG_RTC is not set
 # CONFIG_WATCHDOG is not set
 # CONFIG_ANALOG is not set
 # CONFIG_AUDIO_DEVICES is not set
+# CONFIG_VIDEO_DEVICES is not set
 # CONFIG_BCH is not set
 # CONFIG_INPUT is not set
 # CONFIG_LCD is not set
@@ -207,6 +220,7 @@ CONFIG_DEV_NULL=y
 # CONFIG_PM is not set
 # CONFIG_POWER is not set
 # CONFIG_SENSORS is not set
+# CONFIG_SERCOMM_CONSOLE is not set
 CONFIG_SERIAL=y
 # CONFIG_DEV_LOWCONSOLE is not set
 # CONFIG_16550_UART is not set
@@ -233,6 +247,8 @@ CONFIG_SERIAL=y
 #
 # Networking Support
 #
+# CONFIG_ARCH_HAVE_NET is not set
+# CONFIG_ARCH_HAVE_PHY is not set
 # CONFIG_NET is not set
 
 #
@@ -243,6 +259,8 @@ CONFIG_SERIAL=y
 # File system configuration
 #
 # CONFIG_DISABLE_MOUNTPOINT is not set
+CONFIG_FS_READABLE=y
+CONFIG_FS_WRITABLE=y
 # CONFIG_FS_RAMMAP is not set
 CONFIG_FS_FAT=y
 CONFIG_FAT_LCNAMES=y
@@ -254,6 +272,7 @@ CONFIG_FAT_MAXFNAME=32
 CONFIG_FS_ROMFS=y
 # CONFIG_FS_SMARTFS is not set
 CONFIG_FS_BINFS=y
+# CONFIG_FS_PROCFS is not set
 
 #
 # System Logging
@@ -349,6 +368,7 @@ CONFIG_BUILTIN_PROXY_STACKSIZE=1024
 #
 # CONFIG_EXAMPLES_BUTTONS is not set
 # CONFIG_EXAMPLES_CAN is not set
+# CONFIG_EXAMPLES_CONFIGDATA is not set
 # CONFIG_EXAMPLES_DHCPD is not set
 # CONFIG_EXAMPLES_ELF is not set
 # CONFIG_EXAMPLES_FTPC is not set
@@ -416,14 +436,11 @@ CONFIG_EXAMPLES_NSH=y
 # Networking Utilities
 #
 # CONFIG_NETUTILS_CODECS is not set
-# CONFIG_NETUTILS_DHCPC is not set
 # CONFIG_NETUTILS_DHCPD is not set
 # CONFIG_NETUTILS_FTPC is not set
 # CONFIG_NETUTILS_FTPD is not set
 # CONFIG_NETUTILS_JSON is not set
-# CONFIG_NETUTILS_RESOLV is not set
 # CONFIG_NETUTILS_SMTP is not set
-# CONFIG_NETUTILS_TELNETD is not set
 # CONFIG_NETUTILS_TFTPC is not set
 # CONFIG_NETUTILS_THTTPD is not set
 # CONFIG_NETUTILS_UIPLIB is not set
@@ -444,11 +461,13 @@ CONFIG_NSH_FILE_APPS=y
 #
 # Disable Individual commands
 #
+# CONFIG_NSH_DISABLE_ADDROUTE is not set
 # CONFIG_NSH_DISABLE_CAT is not set
 # CONFIG_NSH_DISABLE_CD is not set
 # CONFIG_NSH_DISABLE_CP is not set
 # CONFIG_NSH_DISABLE_CMP is not set
 # CONFIG_NSH_DISABLE_DD is not set
+# CONFIG_NSH_DISABLE_DELROUTE is not set
 # CONFIG_NSH_DISABLE_ECHO is not set
 # CONFIG_NSH_DISABLE_EXEC is not set
 # CONFIG_NSH_DISABLE_EXIT is not set
@@ -490,8 +509,10 @@ CONFIG_NSH_FILE_APPS=y
 #
 # CONFIG_NSH_CMDOPT_DF_H is not set
 CONFIG_NSH_CODECS_BUFSIZE=128
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
 CONFIG_NSH_FILEIOSIZE=1024
 CONFIG_NSH_LINELEN=80
+# CONFIG_NSH_DISABLE_SEMICOLON is not set
 CONFIG_NSH_MAXARGUMENTS=6
 CONFIG_NSH_NESTDEPTH=3
 # CONFIG_NSH_DISABLESCRIPT is not set
@@ -519,6 +540,11 @@ CONFIG_NSH_CONSOLE=y
 # NxWidgets/NxWM
 #
 
+#
+# Platform-specific Support
+#
+# CONFIG_PLATFORM_CONFIGDATA is not set
+
 #
 # System NSH Add-Ons
 #
@@ -549,6 +575,11 @@ CONFIG_NSH_CONSOLE=y
 # FLASH Erase-all Command
 #
 
+#
+# NxPlayer media player library / command Line
+#
+# CONFIG_SYSTEM_NXPLAYER is not set
+
 #
 # RAM test
 #

libc/string/lib_strstr.c

@@ -45,9 +45,9 @@
  * Global Functions
  ****************************************************************************/
 
-char *strstr(const char *str, const char *substr)
+FAR char *strstr(FAR const char *str, FAR const char *substr)
 {
-  const char *candidate;  /* Candidate in str with matching start character */
+  FAR const char *candidate; /* Candidate in str with matching start character */
   char ch;                   /* First character of the substring */
   int len;                   /* The length of the substring */