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| author | Denys Vlasenko | 2018-04-01 18:55:00 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2018-04-01 18:55:00 +0200 |
| commit | bb6f573ad204887e2447a40628efd98f334fb520 (patch) | |
| tree | b088b3516d3e5662563657a0818016741f643034 /shell | |
| parent | 41fddb43729373740bfba82da83373ec5ba49fc8 (diff) | |
| download | busybox-bb6f573ad204887e2447a40628efd98f334fb520.zip busybox-bb6f573ad204887e2447a40628efd98f334fb520.tar.gz | |
hush: add a comment where we differ from bash wrt heredoc EOF mark handling
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/hush.c | 8 | ||||
| -rw-r--r-- | shell/hush_test/hush-heredoc/heredoc_backquote1.right | 5 | ||||
| -rwxr-xr-x | shell/hush_test/hush-heredoc/heredoc_backquote1.tests | 10 |
3 files changed, 8 insertions, 15 deletions
diff --git a/shell/hush.c b/shell/hush.c index 4b8641d..1921932 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -3861,6 +3861,13 @@ static int done_word(o_string *word, struct parse_context *ctx) * shell may perform it, but shall do so only when * the expansion would result in one word." */ +//bash does not do parameter/command substitution or arithmetic expansion +//for _heredoc_ redirection word: these constructs look for exact eof marker +// as written: +// <<EOF$t +// <<EOF$((1)) +// <<EOF`true` [this case also makes heredoc "quoted", a-la <<"EOF"] +//This contradicts the above docs. ctx->pending_redirect->rd_filename = xstrdup(word->data); /* Cater for >\file case: * >\a creates file a; >\\a, >"\a", >"\\a" create file \a @@ -4228,6 +4235,7 @@ static int fetch_heredocs(int heredoc_cnt, struct parse_context *ctx, struct in_ redir->rd_type = REDIRECT_HEREDOC2; /* redir->rd_dup is (ab)used to indicate <<- */ +bb_error_msg("redir->rd_filename:'%s'", redir->rd_filename); p = fetch_till_str(&ctx->as_string, input, redir->rd_filename, redir->rd_dup); if (!p) { diff --git a/shell/hush_test/hush-heredoc/heredoc_backquote1.right b/shell/hush_test/hush-heredoc/heredoc_backquote1.right deleted file mode 100644 index 0be2a32..0000000 --- a/shell/hush_test/hush-heredoc/heredoc_backquote1.right +++ /dev/null @@ -1,5 +0,0 @@ -heredoc1 -Ok1:0 -heredoc2 -EO`false`F -Ok2:0 diff --git a/shell/hush_test/hush-heredoc/heredoc_backquote1.tests b/shell/hush_test/hush-heredoc/heredoc_backquote1.tests deleted file mode 100755 index ec3d8fe..0000000 --- a/shell/hush_test/hush-heredoc/heredoc_backquote1.tests +++ /dev/null @@ -1,10 +0,0 @@ -cat <<EO`true`F -heredoc1 -EO`true`F -echo Ok1:$? - -cat <<EO`true`F -heredoc2 -EO`false`F -EO`true`F -echo Ok2:$? |