diff options
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/hush.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/shell/hush.c b/shell/hush.c index 831443e2e..31ca22a2e 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -117,6 +117,10 @@ * and therefore waitpid will return the same result as last time) */ #define ENABLE_HUSH_FAST 0 +/* TODO: implement simplified code for users which do not need ${var%...} ops + * So far ${var%...} ops are always enabled: + */ +#define ENABLE_HUSH_DOLLAR_OPS 1 #if BUILD_AS_NOMMU @@ -2681,7 +2685,7 @@ static NOINLINE int expand_vars_to_list(o_string *output, int n, char *arg, char } } } else if (exp_op == ':') { -#if ENABLE_HUSH_BASH_COMPAT +#if ENABLE_HUSH_BASH_COMPAT && ENABLE_SH_MATH_SUPPORT /* It's ${var:N[:M]} bashism. * Note that in encoded form it has TWO parts: * var:N<SPECIAL_VAR_SYMBOL>M<SPECIAL_VAR_SYMBOL> @@ -5820,7 +5824,7 @@ static int parse_group(o_string *dest, struct parse_context *ctx, /* command remains "open", available for possible redirects */ } -#if ENABLE_HUSH_TICK || ENABLE_SH_MATH_SUPPORT +#if ENABLE_HUSH_TICK || ENABLE_SH_MATH_SUPPORT || ENABLE_HUSH_DOLLAR_OPS /* Subroutines for copying $(...) and `...` things */ static void add_till_backquote(o_string *dest, struct in_str *input); /* '...' */ @@ -5921,9 +5925,9 @@ static int add_till_closing_bracket(o_string *dest, struct in_str *input, unsign { int ch; char dbl = end_ch & DOUBLE_CLOSE_CHAR_FLAG; -#if ENABLE_HUSH_BASH_COMPAT +# if ENABLE_HUSH_BASH_COMPAT char end_char2 = end_ch >> 8; -#endif +# endif end_ch &= (DOUBLE_CLOSE_CHAR_FLAG - 1); while (1) { @@ -5976,7 +5980,7 @@ static int add_till_closing_bracket(o_string *dest, struct in_str *input, unsign } return ch; } -#endif /* ENABLE_HUSH_TICK || ENABLE_SH_MATH_SUPPORT */ +#endif /* ENABLE_HUSH_TICK || ENABLE_SH_MATH_SUPPORT || ENABLE_HUSH_DOLLAR_OPS */ /* Return code: 0 for OK, 1 for syntax error */ #if BB_MMU @@ -6082,7 +6086,11 @@ static int parse_dollar(o_string *as_string, again: if (!BB_MMU) pos = dest->length; +#if ENABLE_HUSH_DOLLAR_OPS last_ch = add_till_closing_bracket(dest, input, end_ch); +#else +#error Simple code to only allow ${var} is not implemented +#endif if (as_string) { o_addstr(as_string, dest->data + pos); o_addchr(as_string, last_ch); |