pmodules/bash
0
0
Fork 0
mirror of https://https.git.savannah.gnu.org/git/bash.git synced 2026-07-14 23:50:49 +02:00
Code Issues Packages Projects Releases Wiki Activity

add more characters to inhibit history expansion; allow asynchronous !' and time' commands without a pipeline

Browse Source
This commit is contained in:
Chet Ramey
2023-08-11 10:32:40 -04:00
parent 1d0c4ceb49
commit 85b466d64f
14 changed files with 3107 additions and 2925 deletions
Download Patch File Download Diff File Expand all files Collapse all files
parse.y
+23 -10
View File
@@ -410,6 +410,7 @@ static FILE *yyerrstream;
%type <pattern> pattern_list case_clause_sequence case_clause
%type <number> timespec
%type <number> list_terminator simple_list_terminator
%type <number> nullcmd_terminator
%start inputunit
@@ -1266,6 +1267,12 @@ list_terminator:'\n'
{ $$ = yacc_EOF; }
;
nullcmd_terminator: list_terminator
{ $$ = $1; }
| '&'
{ $$ = '&'; }
;
newline_list:
| newline_list '\n'
;
@@ -1358,15 +1365,16 @@ pipeline_command: pipeline
$2->flags |= $1;
$$ = $2;
}
| timespec list_terminator
| timespec nullcmd_terminator
{
ELEMENT x;
/* POSIX interp 267 */
/* Boy, this is unclean. `time' by itself can
time a null command. We cheat and push a
newline back if the list_terminator was a newline
to avoid the double-newline problem (one to
terminate this, one to terminate the command) */
newline back if the nullcmd_terminator was a
newline to avoid the double-newline problem (one
to terminate this, one to terminate the command) */
x.word = 0;
x.redirect = 0;
$$ = make_simple_command (x, (COMMAND *)NULL, line_number);
@@ -1376,18 +1384,21 @@ pipeline_command: pipeline
token_to_read = '\n';
else if ($2 == ';')
token_to_read = ';';
else if ($2 == '&')
token_to_read = '&';
parser_state &= ~PST_REDIRLIST; /* make_simple_command sets this */
}
| BANG list_terminator
| BANG nullcmd_terminator
{
ELEMENT x;
/* POSIX interp 267 */
/* This is just as unclean. Posix says that `!'
by itself should be equivalent to `false'.
We cheat and push a
newline back if the list_terminator was a newline
to avoid the double-newline problem (one to
terminate this, one to terminate the command) */
We cheat and push a newline back if the
nullcmd_terminator was a newline to avoid the
double-newline problem (one to terminate this,
one to terminate the command) */
x.word = 0;
x.redirect = 0;
$$ = make_simple_command (x, (COMMAND *)NULL, line_number);
@@ -1395,8 +1406,10 @@ pipeline_command: pipeline
/* XXX - let's cheat and push a newline back */
if ($2 == '\n')
token_to_read = '\n';
if ($2 == ';')
else if ($2 == ';')
token_to_read = ';';
else if ($2 == '&')
token_to_read = '&';
parser_state &= ~PST_REDIRLIST; /* make_simple_command sets this */
}
;