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fix(field_splitting): ensure no extraneous spaces appear

Browse source 
debug notes:
= 250  !! OK ===================================================================
export HOLA="bonjour "
echo $HOLA | cat -e
= out =
bonjour $

= err =
rc: 0

= refout =
bonjour$

++++++++++++++++++++++++++++++++++++++++++++++++++++
failed: quote removal before word splitting
++++++++++++++++++++++++++++++++++++++++++++++++++++
++++ test input:
export VAR="hello "
echo $VAR | cat -e
++++ Got output:
hello $
++++ But expected:
hello$

Problem is in post-processing:
parsed command
 ╰─ t_cmd
     ├─ t_cmd_type = FT_SIMPLE
     ├─ flags = 0
     ├─ line = 0
     ╰─ value
         ╰─ t_simple_cmd
             ├─ line = 0
             ├─ t_wordlist
             │   ├─ t_worddesc
             │   │   ├─ word   = [echo]
             │   │   ├─ marker = [    ]
             │   │   ├─ flags = 0
             │   │   ╰─ t_token_type = WORD_TOKEN
             │   ╰─ t_worddesc
             │       ├─ word   = [$VAR]
             │       ├─ marker = [    ]
             │       ├─ flags = 1
             │       ╰─ t_token_type = WORD_TOKEN
             ╰─ redirections = (empty redir list)
about to post-process
 ╰─ t_simple_cmd
     ├─ line = 0
     ├─ t_wordlist
     │   ├─ t_worddesc
     │   │   ├─ word   = [echo]
     │   │   ├─ marker = [    ]
     │   │   ├─ flags = 0
     │   │   ╰─ t_token_type = WORD_TOKEN
     │   ╰─ t_worddesc
     │       ├─ word   = [$VAR]
     │       ├─ marker = [    ]
     │       ├─ flags = 1
     │       ╰─ t_token_type = WORD_TOKEN
     ╰─ redirections = (empty redir list)
about to post-process
 ╰─ t_simple_cmd
     ├─ line = 0
     ├─ t_wordlist
     │   ├─ t_worddesc
     │   │   ├─ word   = [echo]
     │   │   ├─ marker = [    ]
     │   │   ├─ flags = 0
     │   │   ╰─ t_token_type = WORD_TOKEN
     │   ╰─ t_worddesc
     │       ├─ word   = [hello ]
     │       ├─ marker = [$$$$$$]
     │       ├─ flags = 1
     │       ╰─ t_token_type = WORD_TOKEN
     ╰─ redirections = (empty redir list)
about to post-process
 ╰─ t_simple_cmd
     ├─ line = 0
     ├─ t_wordlist
     │   ├─ t_worddesc
     │   │   ├─ word   = [echo]
     │   │   ├─ marker = [    ]
     │   │   ├─ flags = 0
     │   │   ╰─ t_token_type = WORD_TOKEN
     │   ├─ t_worddesc
     │   │   ├─ word   = [hello]
     │   │   ├─ marker = [$$$$$]
     │   │   ├─ flags = 1
     │   │   ╰─ t_token_type = WORD_TOKEN
     │   ╰─ t_worddesc <---- WHAT IS THIS DOING HERE???
     │       ├─ word   = []
     │       ├─ marker = []
     │       ├─ flags = 1
     │       ╰─ t_token_type = WORD_TOKEN
     ╰─ redirections = (empty redir list)
about to post-process
 ╰─ t_simple_cmd
     ├─ line = 0
     ├─ t_wordlist
     │   ├─ t_worddesc
     │   │   ├─ word   = [echo]
     │   │   ├─ marker = [    ]
     │   │   ├─ flags = 0
     │   │   ╰─ t_token_type = WORD_TOKEN
     │   ├─ t_worddesc
     │   │   ├─ word   = [hello]
     │   │   ├─ marker = [$$$$$]
     │   │   ├─ flags = 1
     │   │   ╰─ t_token_type = WORD_TOKEN
     │   ╰─ t_worddesc
     │       ├─ word   = []
     │       ├─ marker = []
     │       ├─ flags = 1
     │       ╰─ t_token_type = WORD_TOKEN
     ╰─ redirections = (empty redir list)
about to execute
 ╰─ t_simple_cmd
     ├─ line = 0
     ├─ t_wordlist
     │   ├─ t_worddesc
     │   │   ├─ word   = [echo]
     │   │   ├─ marker = [(null)]
     │   │   ├─ flags = 0
     │   │   ╰─ t_token_type = WORD_TOKEN
     │   ├─ t_worddesc
     │   │   ├─ word   = [hello]
     │   │   ├─ marker = [(null)]
     │   │   ├─ flags = 1
     │   │   ╰─ t_token_type = WORD_TOKEN
     │   ╰─ t_worddesc
     │       ├─ word   = []
     │       ├─ marker = [(null)]
     │       ├─ flags = 1
     │       ╰─ t_token_type = WORD_TOKEN
     ╰─ redirections = (empty redir list)

Problem seems to be in field splitting
This commit is contained in:
Khaïs COLIN 2025-04-25 13:43:41 +02:00
parent 588b016f69
commit e5027323e1
2 changed files with 38 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

20
src/postprocess/fieldsplit/fieldsplit.c
View file

@ -6,7 +6,7 @@
/* By: khais <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/04/03 15:48:52 by khais #+# #+# */
/* Updated: 2025/04/21 11:56:26 by khais ### ########.fr */
/* Updated: 2025/04/25 14:27:56 by khais ### ########.fr */
/* */
/* ************************************************************************** */
@ -28,11 +28,19 @@ static void fieldsplit_delimit(t_buffer *word, t_buffer *marker,
{
t_worddesc *out;
out = worddesc_create(word->buffer, original->flags, marker->buffer,
WORD_TOKEN);
(*outlist) = wordlist_push(*outlist, out);
free(word);
free(marker);
if (ft_strlen(word->buffer) > 0)
{
out = worddesc_create(word->buffer, original->flags, marker->buffer,
WORD_TOKEN);
(*outlist) = wordlist_push(*outlist, out);
free(word);
free(marker);
}
else
{
ft_buffer_free(word);
ft_buffer_free(marker);
}
}
t_wordlist *minishell_fieldsplit(t_worddesc *original,

24
test.sh
View file

@ -1096,4 +1096,28 @@ expecting <<EOF
the answer is 42
EOF
when_run <<"EOF" "quote removal before word splitting"
export VAR="hello "
echo $VAR | cat -e
EOF
expecting <<"EOF"
hello$
EOF
when_run <<"EOF" "quote removal before word splitting"
export VAR=" hello world "
echo -$VAR- | cat -e
EOF
expecting <<"EOF"
- hello world -$
EOF
when_run <<"EOF" "quote removal before word splitting"
export VAR=" hello world "
echo "-$VAR-" | cat -e
EOF
expecting <<"EOF"
- hello world -$
EOF
finalize