Age | Commit message (Collapse) | Author |
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Closes 2695
function old new delta
parse_dollar 762 790 +28
subevalvar 1258 1267 +9
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(add/remove: 0/0 grow/shrink: 2/0 up/down: 37/0) Total: 37 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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$ IFS=": "; x=" "; set x $x; for v; do echo "|$v|"; done
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$ IFS=": "; x=":"; set x $x; for v; do echo "|$v|"; done
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function old new delta
run_pipe 1789 1870 +81
expand_on_ifs 310 361 +51
pseudo_exec_argv 588 591 +3
builtin_local 50 53 +3
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(add/remove: 0/0 grow/shrink: 4/0 up/down: 138/0) Total: 138 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Thu, 22 Mar 2018 21:41:24 +0800
parser: Allow newlines within parameter substitution
On Fri, Mar 16, 2018 at 11:27:22AM +0800, Herbert Xu wrote:
> On Thu, Mar 15, 2018 at 10:49:15PM +0100, Harald van Dijk wrote:
> >
> > Okay, it can be trivially modified to something that does work in other
> > shells (even if it were actually executed), but gets rejected at parse time
> > by dash:
> >
> > if false; then
> > : ${$+
> > }
> > fi
>
> That's just a bug in dash's parser with ${} in general, because
> it bombs out without the if clause too:
>
> : ${$+
> }
This patch fixes the parsing of newlines with parameter substitution.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
unset_local_var 20 274 +254
leave_var_nest_level - 98 +98
set_vars_and_save_old 128 164 +36
enter_var_nest_level - 32 +32
builtin_local 46 50 +4
pseudo_exec_argv 554 544 -10
redirect_and_varexp_helper 77 64 -13
run_pipe 1890 1641 -249
unset_local_var_len 267 - -267
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(add/remove: 2/1 grow/shrink: 3/3 up/down: 424/-539) Total: -115 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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This closes 10821.
Upstream patch:
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 9 Mar 2018 00:14:02 +0800
parser: Add syntax stack for recursive parsing
Without a stack of syntaxes we cannot correctly these two cases
together:
"${a#'$$'}"
"${a#"${b-'$$'}"}"
A recursive parser also helps in some other corner cases such
as nested arithmetic expansion with paratheses.
This patch adds a syntax stack allocated from the stack using
alloca. As a side-effect this allows us to remove the naked
backslashes for patterns within double-quotes, which means that
EXP_QPAT also has to go.
This patch also fixes removes any backslashes that precede right
braces when they are present within a parameter expansion context,
and backslashes that precede double quotes within inner double
quotes inside a parameter expansion in a here-document context.
The idea of a recursive parser is based on a patch by Harald van
Dijk.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
var_bash3, var_bash4 and var_bash6 tests are updated
with the output given by bash-4.3.43
With this patch, the following tests now pass for ash:
dollar_repl_slash_bash2.tests
squote_in_varexp2.tests
squote_in_varexp.tests
var_bash4.tests
function old new delta
readtoken1 2615 2874 +259
synstack_push - 54 +54
evalvar 574 571 -3
rmescapes 330 310 -20
subevalvar 1279 1258 -21
argstr 1146 1107 -39
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(add/remove: 1/0 grow/shrink: 1/4 up/down: 313/-83) Total: 230 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
expand_one_var 1592 1618 +26
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
run_pipe 1697 1774 +77
unset_local_var_len 258 301 +43
hush_main 1009 1051 +42
set_local_var 516 554 +38
parse_and_run_file 42 75 +33
i_getch 96 116 +20
.rodata 18858 18876 +18
done_command 106 122 +16
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(add/remove: 0/0 grow/shrink: 8/0 up/down: 287/0) Total: 287 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
parse_dollar 786 820 +34
expand_one_var 1579 1592 +13
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(add/remove: 0/0 grow/shrink: 2/0 up/down: 47/0) Total: 47 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Tue, 25 May 2010 20:55:05 +0800
[VAR] Move unsetvar functionality into setvareq
This patch moves the unsetvar code into setvareq so that we can
no have a pathological case of an unset variable hanging around
unless it has a bit pinning it like VEXPORT.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
function old new delta
setvareq 227 303 +76
expmeta 517 521 +4
localcmd 364 366 +2
unsetcmd 96 76 -20
unsetvar 129 7 -122
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(add/remove: 0/0 grow/shrink: 3/2 up/down: 82/-142) Total: -60 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Currently fails.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
helper_export_local 185 214 +29
run_pipe 1549 1560 +11
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(add/remove: 0/0 grow/shrink: 2/0 up/down: 40/0) Total: 40 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
expand_one_var 1602 1615 +13
builtin_type 114 116 +2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Thu, 4 Oct 2007 22:15:10 +0800
[PARSER] Fix parsing of ${##1}
Previously dash treated ${##1} as a length operation. This patch fixes that.
Test case:
set -- a
echo ${##1}OK
Old result:
1OK
New result:
OK
This was a real bug in ash (but not in hush).
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Thu, 1 Jan 2015 07:53:10 +1100
expand: Fixed "$@" expansion when EXP_FULL is false
The commit 3c06acdac0b1ba0e0acdda513a57ee6e31385dce ([EXPAND]
Split unquoted $@/$* correctly when IFS is set but empty) broke
the case where $@ is in quotes and EXP_FULL is false.
In that case we should still emit IFS as field splitting is not
performed.
Reported-by: Juergen Daubert <jue@jue.li>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream patch:
Date: Wed, 8 Oct 2014 15:42:08 +0800
[EXPAND] Do not split quoted VSLENGTH and VSTRIM
Currently VSLENGTH and VSTRIM* are field-split even within quotes.
This is obviously wrong. This patch fixes that.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Wed, 8 Oct 2014 15:24:23 +0800
[EXPAND] Split unquoted $@/$* correctly when IFS is set but empty
Currently we do not field-split $@/$* when it isn't quoted and IFS
is set but empty. This is obviously wrong. This patch fixes this.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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This fixes backslash+newline continuation in
$VAR\
NAME
construct. (ash has a bug there as well).
function old new delta
file_peek2 - 74 +74
parse_dollar 746 773 +27
expand_vars_to_list 1143 1167 +24
setup_string_in_str 32 46 +14
setup_file_in_str 33 47 +14
file_get 264 278 +14
static_peek2 - 7 +7
file_peek 91 72 -19
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(add/remove: 2/0 grow/shrink: 5/1 up/down: 174/-19) Total: 155 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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In the added testcase, before patch we failed 8 out of 9 tests,
now we fail only 2 (4th and 5th).
function old new delta
expand_on_ifs 225 258 +33
expand_vars_to_list 1038 1054 +16
o_save_ptr_helper 115 119 +4
builtin_umask 132 133 +1
o_addQstr 165 161 -4
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(add/remove: 0/0 grow/shrink: 4/1 up/down: 54/-4) Total: 50 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
builtin_umask 133 132 -1
expand_one_var 1552 1543 -9
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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function old new delta
expand_one_var 1513 1552 +39
expand_pseudo_dquoted 118 135 +17
expand_string_to_string 110 126 +16
setup_heredoc 298 308 +10
expand_and_evaluate_arith 69 79 +10
parse_stream_dquoted 233 241 +8
setup_redirects 220 225 +5
run_list 956 961 +5
expand_assignments 76 81 +5
run_pipe 1587 1590 +3
parse_stream 2371 2374 +3
builtin_umask 132 133 +1
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(add/remove: 0/0 grow/shrink: 12/0 up/down: 122/0) Total: 122 bytes
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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function old new delta
parse_stream_dquoted 228 233 +5
parse_stream 2369 2371 +2
parse_dollar 730 717 -13
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(add/remove: 0/0 grow/shrink: 2/1 up/down: 7/-13) Total: -6 bytes
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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function old new delta
expand_vars_to_list 2386 2833 +447
expand_string_to_string 69 110 +41
parse_dollar 681 721 +40
hush_main 963 945 -18
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(add/remove: 0/0 grow/shrink: 3/1 up/down: 528/-18) Total: 510 bytes
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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function old new delta
get_local_var_value 100 171 +71
expand_assignments 46 76 +30
reset_traps_to_defaults 229 238 +9
maybe_set_to_sigexit 47 50 +3
init_sigmasks 211 214 +3
builtin_trap 462 465 +3
expand_vars_to_list 2412 2408 -4
run_pipe 1568 1533 -35
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(add/remove: 0/0 grow/shrink: 6/2 up/down: 119/-39) Total: 80 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
expand_vars_to_list 2374 2409 +35
builtin_umask 132 133 +1
builtin_exit 47 48 +1
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(add/remove: 0/0 grow/shrink: 3/0 up/down: 37/0) Total: 37 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
handle_dollar 574 681 +107
expand_and_evaluate_arith - 77 +77
expand_vars_to_list 2302 2374 +72
add_till_closing_bracket 359 368 +9
builtin_exit 48 47 -1
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(add/remove: 1/0 grow/shrink: 3/1 up/down: 265/-1) Total: 264 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
add_till_closing_paren 313 359 +46
builtin_exit 48 47 -1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
expand_vars_to_list 2229 2302 +73
add_till_closing_paren 286 313 +27
handle_dollar 623 574 -49
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(add/remove: 0/0 grow/shrink: 2/1 up/down: 100/-49) Total: 51 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
expand_vars_to_list 2209 2229 +20
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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