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NSH: Add a break command; if-then-else and looping behavior can not be configured out of the build for small systems that need minimal scripting capability

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This commit is contained in:
Gregory Nutt
2014-01-18 09:39:16 -06:00
parent 45121c8709
commit 612d8ed14c
7 changed files with 149 additions and 19 deletions
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8
nshlib/nsh_command.c
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@@ -119,6 +119,10 @@ static const struct cmdmap_s g_cmdmap[] =
# endif
#endif
#if !defined(CONFIG_NSH_DISABLESCRIPT) && !defined(CONFIG_NSH_DISABLE_LOOPS)
{ "break", cmd_break, 1, 1, NULL },
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0
# ifndef CONFIG_NSH_DISABLE_CAT
{ "cat", cmd_cat, 2, CONFIG_NSH_MAXARGUMENTS, "<path> [<path> [<path> ...]]" },
@@ -465,6 +469,7 @@ static inline void help_usage(FAR struct nsh_vtbl_s *vtbl)
nsh_output(vtbl, " <cmd> [> <file>|>> <file>]\n\n");
#endif
#ifndef CONFIG_NSH_DISABLESCRIPT
#ifndef CONFIG_NSH_DISABLE_ITEF
nsh_output(vtbl, "OR\n");
nsh_output(vtbl, " if <cmd>\n");
nsh_output(vtbl, " then\n");
@@ -472,6 +477,8 @@ static inline void help_usage(FAR struct nsh_vtbl_s *vtbl)
nsh_output(vtbl, " else\n");
nsh_output(vtbl, " [sequence of <cmd>]\n");
nsh_output(vtbl, " fi\n\n");
#endif
#ifndef CONFIG_NSH_DISABLE_LOOPS
nsh_output(vtbl, "OR\n");
nsh_output(vtbl, " while <cmd>\n");
nsh_output(vtbl, " do\n");
@@ -483,6 +490,7 @@ static inline void help_usage(FAR struct nsh_vtbl_s *vtbl)
nsh_output(vtbl, " [sequence of <cmd>]\n");
nsh_output(vtbl, " done\n\n");
#endif
#endif
}
#endif