[vte] parser: Don't collect invalid characters in escape sequences

[Christian Persch <chpe src gnome org>]

commit 887f744b6e8c84204fa9bd66167ada88a9e7293a
Author: Christian Persch <chpe src gnome org>
Date:   Tue Mar 27 19:40:13 2018 +0200

    parser: Don't collect invalid characters in escape sequences
    
    Intermediates must be 2/0..2/15, and finals must be 3/0..7/14.
    Characters outside of that range shouldn't be silently ignored,
    but instead abort the sequence.

 src/parser.cc |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/parser.cc b/src/parser.cc
index f90736a..0c3968f 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -1356,8 +1356,8 @@ static int parser_feed_to_state(struct vte_parser *parser, uint32_t raw)
                                                  ACTION_IGNORE);
                 }
 
-                return parser_transition(parser, raw,
-                                         STATE_ESC_INT, ACTION_COLLECT);
+                return parser_transition(parser, raw, STATE_GROUND,
+                                         ACTION_IGNORE);
         case STATE_ESC_INT:
                 switch (raw) {
                 case 0x00 ... 0x1a:        /* C0 \ { ESC } */
@@ -1378,8 +1378,8 @@ static int parser_feed_to_state(struct vte_parser *parser, uint32_t raw)
                                                  ACTION_IGNORE);
                 }
 
-                return parser_transition(parser, raw,
-                                         STATE_NONE, ACTION_COLLECT);
+                return parser_transition(parser, raw, STATE_GROUND,
+                                         ACTION_IGNORE);
         case STATE_CSI_ENTRY:
                 switch (raw) {
                 case 0x00 ... 0x1a:        /* C0 \ { ESC } */