[PATCH 0/8] Resending sb/range-diff-colors

This is also avaliable as git fetch https://github.com/stefanbeller/git sb/range-diff-colors

and is a resend of sb/range-diff-colors.

It is rebased on the version of range-diff that Johannes just sent out (pr-1/dscho/branch-diff-v5 in GGG repo), and squashes the fisup commit (which had to be adapted slightly in one line, too)

range-diff below.

Stefan Beller (8):
  test_decode_color: understand FAINT and ITALIC
  t3206: add color test for range-diff --dual-color
  diff.c: simplify caller of emit_line_0
  diff.c: reorder arguments for emit_line_ws_markup
  diff.c: add set_sign to emit_line_0
  diff: use emit_line_0 once per line
  diff.c: compute reverse locally in emit_line_0
  diff.c: rewrite emit_line_0 more understandably

 diff.c                  | 94 +++++++++++++++++++++++------------------
 t/t3206-range-diff.sh   | 39 +++++++++++++++++
 t/test-lib-functions.sh |  2 +
 3 files changed, 93 insertions(+), 42 deletions(-)
 
./git-range-diff \
  5bf616af71afe1c4c36da7f21077662febf28cbe..c1b144ea695514cfe185fe70089198621c38d01c \
  ccf8c1bb2459d33c7dc97098c08c47ca7d77ed3e..4dc97b54a35c60c25ab7634441d60711ead0e84e \
  >>0000-cover-letter.patch

 1:  7f88339e03e =  1:  0fedd4c0a20 test_decode_color: understand FAINT and ITALIC
 2:  13e8528be69 <  -:  ----------- t3206: add color test for range-diff --dual-color
 -:  ----------- >  2:  6a1c7698c68 t3206: add color test for range-diff --dual-color
 3:  2f80811b319 =  3:  7e12ece1d34 diff.c: simplify caller of emit_line_0
 4:  15af0d378c8 !  4:  74dabd6d36f diff.c: reorder arguments for emit_line_ws_markup
    @@ -35,7 +35,7 @@
      	case DIFF_SYMBOL_PLUS:
     @@
      				set = diff_get_color_opt(o, DIFF_CONTEXT_BOLD);
    - 			flags |= WS_IGNORE_FIRST_SPACE;
    + 			flags &= ~DIFF_SYMBOL_CONTENT_WS_MASK;
      		}
     -		emit_line_ws_markup(o, set, reset, line, len, set_sign, '+',
     +		emit_line_ws_markup(o, set_sign, set, reset, '+', line, len,
 5:  dce49bb58fd =  5:  e304e15aa6b diff.c: add set_sign to emit_line_0
 6:  7581e16d63f =  6:  8d935d5212c diff: use emit_line_0 once per line
 7:  d070d393f73 =  7:  2344aac787a diff.c: compute reverse locally in emit_line_0
 8:  669e7516e03 =  8:  4dc97b54a35 diff.c: rewrite emit_line_0 more understandably
 9:  c1b144ea695 <  -:  ----------- fixup! t3206: add color test for range-diff --dual-color