[vte] emulation: Port CUB, CUF to new parameter glue

[Christian Persch <chpe src gnome org>]

commit fcbe649e7b04c584af56ece29060f450cad635d3
Author: Christian Persch <chpe src gnome org>
Date:   Tue Mar 27 19:40:12 2018 +0200

    emulation: Port CUB, CUF to new parameter glue

 src/vteseq-list.hh |    2 --
 src/vteseq.cc      |   26 ++++++++------------------
 2 files changed, 8 insertions(+), 20 deletions(-)
---
diff --git a/src/vteseq-list.hh b/src/vteseq-list.hh
index bb87abf..37b2b2d 100644
--- a/src/vteseq-list.hh
+++ b/src/vteseq-list.hh
@@ -31,8 +31,6 @@ SEQUENCE_HANDLER(change_tek_cursor_color_st)
 SEQUENCE_HANDLER(change_tek_foreground_color_bel)
 SEQUENCE_HANDLER(change_tek_foreground_color_st)
 SEQUENCE_HANDLER(cursor_back_tab)
-SEQUENCE_HANDLER(cursor_backward)
-SEQUENCE_HANDLER(cursor_forward)
 SEQUENCE_HANDLER(cursor_forward_tabulation)
 SEQUENCE_HANDLER(cursor_lower_left)
 SEQUENCE_HANDLER(cursor_preceding_line)
diff --git a/src/vteseq.cc b/src/vteseq.cc
index 616c738..ec8c78c 100644
--- a/src/vteseq.cc
+++ b/src/vteseq.cc
@@ -1412,14 +1412,6 @@ VteTerminalPrivate::seq_backspace(vte::parser::Params const& params)
        }
 }
 
-/* Cursor left N columns. */
-void
-VteTerminalPrivate::seq_cursor_backward(vte::parser::Params const& params)
-{
-        auto val = params.number_or_default_at(0, 1);
-        move_cursor_backward(val);
-}
-
 void
 VteTerminalPrivate::move_cursor_backward(vte::grid::column_t columns)
 {
@@ -1430,14 +1422,6 @@ VteTerminalPrivate::move_cursor_backward(vte::grid::column_t columns)
         set_cursor_column(col - columns);
 }
 
-/* Cursor right N columns. */
-void
-VteTerminalPrivate::seq_cursor_forward(vte::parser::Params const& params)
-{
-        auto val = params.number_or_default_at(0, 1);
-        move_cursor_forward(val);
-}
-
 void
 VteTerminalPrivate::move_cursor_forward(vte::grid::column_t columns)
 {
@@ -2941,6 +2925,8 @@ VteTerminalPrivate::CUB(vte::parser::Sequence const& seq)
          *
          * Defaults:
          *   args[0]: 1
+         *
+         * References: ECMA-48 § 8.3.18
          */
 #if 0
         unsigned int num = 1;
@@ -2952,7 +2938,8 @@ VteTerminalPrivate::CUB(vte::parser::Sequence const& seq)
         screen_cursor_left(screen, num);
 #endif
 
-        seq_cursor_backward(seq);
+        auto value = seq.collect1(0, 1);
+        move_cursor_backward(value);
 }
 
 void
@@ -2993,6 +2980,8 @@ VteTerminalPrivate::CUF(vte::parser::Sequence const& seq)
          *
          * Defaults:
          *   args[0]: 1
+         *
+         * References: ECMA-48 § 8.3.20
          */
 #if 0
         unsigned int num = 1;
@@ -3004,7 +2993,8 @@ VteTerminalPrivate::CUF(vte::parser::Sequence const& seq)
         screen_cursor_right(screen, num);
 #endif
 
-        seq_cursor_forward(seq);
+        auto value = seq.collect1(0, 1);
+        move_cursor_forward(value);
 }
 
 void