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| author | Karel Zak | 2017-03-29 14:06:37 +0200 |
|---|---|---|
| committer | Karel Zak | 2017-04-07 14:34:11 +0200 |
| commit | 7bdefc7fc0c3c321363f8074f3ab1e2faaca6b2d (patch) | |
| tree | f74e138427c06e029e414cfd4cd9bb20d977681c /libsmartcols/src/table.c | |
| parent | libfdisk: (gpt) fix ents zeroize (diff) | |
| download | kernel-qcow2-util-linux-7bdefc7fc0c3c321363f8074f3ab1e2faaca6b2d.tar.gz kernel-qcow2-util-linux-7bdefc7fc0c3c321363f8074f3ab1e2faaca6b2d.tar.xz kernel-qcow2-util-linux-7bdefc7fc0c3c321363f8074f3ab1e2faaca6b2d.zip | |
libsmartcols: add scols_table_move_column()
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'libsmartcols/src/table.c')
| -rw-r--r-- | libsmartcols/src/table.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libsmartcols/src/table.c b/libsmartcols/src/table.c index f1ddacc9f..84c0f6a25 100644 --- a/libsmartcols/src/table.c +++ b/libsmartcols/src/table.c @@ -252,6 +252,38 @@ int scols_table_remove_columns(struct libscols_table *tb) } /** + * scols_table_move_column: + * @tb: table + * @pre: column before the column + * @cl: colum to move + * + * Move the @cl behind @pre. The the @pre is NULL then the @col is the fist + * column in the table. + * + * Returns: 0, a negative number in case of an error. + */ +int scols_table_move_column(struct libscols_table *tb, + struct libscols_column *pre, + struct libscols_column *cl) +{ + struct list_head *head; + struct libscols_iter itr; + size_t n = 0; + + list_del_init(&cl->cl_columns); /* remove from old position */ + + head = pre ? &pre->cl_columns : &tb->tb_columns; + list_add(&cl->cl_columns, head); /* add to the new place */ + + /* fix seq. numbers */ + scols_reset_iter(&itr, SCOLS_ITER_FORWARD); + while (scols_table_next_column(tb, &itr, &cl) == 0) + cl->seqnum = n++; + + return 0; +} + +/** * scols_table_new_column: * @tb: table * @name: column header |