lib/printbuf: Tabstops, indenting

This patch adds two new features to printbuf for structured formatting:

 - Indent level: the indent level, as a number of spaces, may be
   increased with pr_indent_add() and decreased with pr_indent_sub().

   Subsequent lines, when started with pr_newline() (not "\n", although
   that may change) will then be intended according to the current
   indent level. This helps with pretty-printers that structure a large
   amonut of data across multiple lines and multiple functions.

 - Tabstops: Tabstops may be set by assigning to the printbuf->tabstops
   array.

   Then, pr_tab() may be used to advance to the next tabstop, printing
   as many spaces as required - leaving previous output left justified
   to the previous tabstop. pr_tab_rjust() advances to the next tabstop
   but inserts the spaces just after the previous tabstop - right
   justifying the previously-outputted text to the next tabstop.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>

0 files changed, 0 insertions, 0 deletions