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hush: fix var_bash3.tests failure

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function                                             old     new   delta
expand_one_var                                      1513    1538     +25
parse_stream_dquoted                                 233     241      +8
expand_pseudo_dquoted                                118     126      +8
setup_heredoc                                        298     303      +5
expand_and_evaluate_arith                             69      74      +5
parse_stream                                        2371    2374      +3
builtin_umask                                        132     133      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/0 up/down: 55/0)               Total: 55 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
Denys Vlasenko 2010-09-10 10:15:18 +02:00
parent a769e0225d
commit 14e289b324
1 changed files with 15 additions and 13 deletions
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28
shell/hush.c
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@ -3733,14 +3733,15 @@ static int parse_dollar(o_string *as_string,
}
#if BB_MMU
#define parse_stream_dquoted(as_string, dest, input, dquote_end) \
parse_stream_dquoted(dest, input, dquote_end)
#define parse_stream_dquoted(as_string, dest, input, dquote_end, dquoted) \
parse_stream_dquoted(dest, input, dquote_end, dquoted)
#define as_string NULL
#endif
static int parse_stream_dquoted(o_string *as_string,
o_string *dest,
struct in_str *input,
int dquote_end)
int dquote_end,
int dquoted)
{
int ch;
int next;
@ -3764,7 +3765,7 @@ static int parse_stream_dquoted(o_string *as_string,
}
debug_printf_parse("\" ch=%c (%d) escape=%d\n",
ch, ch, !!(dest->o_expflags & EXP_FLAG_ESC_GLOB_CHARS));
if (ch == '\\') {
if (dquoted && ch == '\\') {
if (next == EOF) {
syntax_error("\\<eof>");
xfunc_die();
@ -3786,6 +3787,7 @@ static int parse_stream_dquoted(o_string *as_string,
goto again;
}
if (ch == '$') {
//CHECK: 0x80? or dquoted?
if (parse_dollar(as_string, dest, input, /*quote_mask:*/ 0x80) != 0) {
debug_printf_parse("parse_stream_dquoted return 1: "
"parse_dollar returned non-0\n");
@ -4160,7 +4162,7 @@ static struct pipe *parse_stream(char **pstring,
dest.has_quoted_part = 1;
if (dest.o_assignment == NOT_ASSIGNMENT)
dest.o_expflags |= EXP_FLAG_ESC_GLOB_CHARS;
if (parse_stream_dquoted(&ctx.as_string, &dest, input, '"'))
if (parse_stream_dquoted(&ctx.as_string, &dest, input, '"', /*dquoted:*/ 1))
goto parse_error;
dest.o_expflags &= ~EXP_FLAG_ESC_GLOB_CHARS;
break;
@ -4385,7 +4387,7 @@ static int expand_on_ifs(o_string *output, int n, const char *str)
* Returns malloced string.
* As an optimization, we return NULL if expansion is not needed.
*/
static char *expand_pseudo_dquoted(const char *str)
static char *expand_pseudo_dquoted(const char *str, int dquoted)
{
char *exp_str;
struct in_str input;
@ -4404,7 +4406,7 @@ static char *expand_pseudo_dquoted(const char *str)
* echo $(($a + `echo 1`)) $((1 + $((2)) ))
*/
setup_string_in_str(&input, str);
parse_stream_dquoted(NULL, &dest, &input, EOF);
parse_stream_dquoted(NULL, &dest, &input, EOF, dquoted);
//bb_error_msg("'%s' -> '%s'", str, dest.data);
exp_str = expand_string_to_string(dest.data);
//bb_error_msg("'%s' -> '%s'", dest.data, exp_str);
@ -4422,7 +4424,7 @@ static arith_t expand_and_evaluate_arith(const char *arg, int *errcode_p)
hooks.lookupvar = get_local_var_value;
hooks.setvar = set_local_var_from_halves;
//hooks.endofname = endofname;
exp_str = expand_pseudo_dquoted(arg);
exp_str = expand_pseudo_dquoted(arg, /*dquoted:*/ 1);
res = arith(exp_str ? exp_str : arg, errcode_p, &hooks);
free(exp_str);
return res;
@ -4593,7 +4595,7 @@ static NOINLINE const char *expand_one_var(char **to_be_freed_pp, char *arg, cha
// (see HACK ALERT below for an example)
val = to_be_freed = xstrdup(val);
//TODO: fix expansion rules:
exp_exp_word = expand_pseudo_dquoted(exp_word);
exp_exp_word = expand_pseudo_dquoted(exp_word, /*dquoted:*/ 1);
if (exp_exp_word)
exp_word = exp_exp_word;
loc = scan_and_match(to_be_freed, exp_word, scan_flags);
@ -4631,7 +4633,7 @@ static NOINLINE const char *expand_one_var(char **to_be_freed_pp, char *arg, cha
*/
//TODO: fix expansion rules:
char *pattern, *repl, *t;
pattern = expand_pseudo_dquoted(exp_word);
pattern = expand_pseudo_dquoted(exp_word, /*dquoted:*/ 1);
if (!pattern)
pattern = xstrdup(exp_word);
debug_printf_varexp("pattern:'%s'->'%s'\n", exp_word, pattern);
@ -4639,7 +4641,7 @@ static NOINLINE const char *expand_one_var(char **to_be_freed_pp, char *arg, cha
exp_word = p;
p = strchr(p, SPECIAL_VAR_SYMBOL);
*p = '\0';
repl = expand_pseudo_dquoted(exp_word);
repl = expand_pseudo_dquoted(exp_word, /*dquoted:*/ arg0 & 0x80);
debug_printf_varexp("repl:'%s'->'%s'\n", exp_word, repl);
/* HACK ALERT. We depend here on the fact that
* G.global_argv and results of utoa and get_local_var_value
@ -4724,7 +4726,7 @@ static NOINLINE const char *expand_one_var(char **to_be_freed_pp, char *arg, cha
debug_printf_expand("expand: op:%c (null:%s) test:%i\n", exp_op,
(exp_save == ':') ? "true" : "false", use_word);
if (use_word) {
to_be_freed = expand_pseudo_dquoted(exp_word);
to_be_freed = expand_pseudo_dquoted(exp_word, /*dquoted:*/ 1);
if (to_be_freed)
exp_word = to_be_freed;
if (exp_op == '?') {
@ -5463,7 +5465,7 @@ static void setup_heredoc(struct redir_struct *redir)
expanded = NULL;
if (!(redir->rd_dup & HEREDOC_QUOTED)) {
expanded = expand_pseudo_dquoted(heredoc);
expanded = expand_pseudo_dquoted(heredoc, /*dquoted:*/ 1);
if (expanded)
heredoc = expanded;
}