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hush: probably fixing a bug in last LINENO fix

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I don't have an example of mishandled script, but the logic looked wrong:
it could sometimes treat newlines as if they are spaces.

function                                             old     new   delta
parse_stream                                        2788    2787      -1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2018-02-08 19:39:42 +01:00
parent 5807e18f0c
commit f786901c4b
1 changed files with 6 additions and 11 deletions
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17
shell/hush.c
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@ -5019,18 +5019,13 @@ static struct pipe *parse_stream(char **pstring,
* i.e., at the previous line.
* We need to skip all whitespace before newlines.
*/
if (ch != '\n') {
/* It was whitespace, but not a newline.
* Eat all whitespace.
*/
for (;;) {
next = i_peek(input);
if (next != ' ' && next != '\t' && next != '\n')
break; /* next char is not ws */
ch = i_getch(input);
}
/* ch == last eaten whitespace char */
while (ch != '\n') {
next = i_peek(input);
if (next != ' ' && next != '\t' && next != '\n')
break; /* next char is not ws */
ch = i_getch(input);
}
/* ch == last eaten whitespace char */
#endif
if (done_word(&dest, &ctx)) {
goto parse_error;