From cb6ee624f72d75b228f5c6c4395b00a709829465 Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Wed, 17 Sep 2014 18:50:23 -0400
Subject: explicitly ignore some escapes

just to prevent warning about them, since we don't intend to support
them
---
 src/parser.l | 49 ++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 44 insertions(+), 5 deletions(-)

(limited to 'src/parser.l')

diff --git a/src/parser.l b/src/parser.l
index 7471074..c11d87f 100644
--- a/src/parser.l
+++ b/src/parser.l
@@ -198,10 +198,18 @@ static void vt100_parser_handle_text(VT100Screen *vt, char *text, size_t len);
 }
 
 {OSC}{CHAR}*{ST} {
-    yytext[yyleng - 1] = '\0';
-    fprintf(stderr,
-        "unhandled OSC sequence: \\033%s\\007\n",
-        yytext + 1);
+    if (!strncmp(yytext, "\e]50;", 5)) { // osx terminal.app private stuff
+        // not interested in non-portable extensions
+    }
+    else if (!strncmp(yytext, "\e]499;", 5)) { // termcast private metadata
+        // this isn't intended to be interpreted
+    }
+    else {
+        yytext[yyleng - 1] = '\0';
+        fprintf(stderr,
+            "unhandled OSC sequence: \\033%s\\007\n",
+            yytext + 1);
+    }
 }
 
 {ESC}{CTRL} {
@@ -209,7 +217,15 @@ static void vt100_parser_handle_text(VT100Screen *vt, char *text, size_t len);
 }
 
 {ESC}{CHAR} {
-    fprintf(stderr, "unhandled escape sequence: %s\n", yytext + 1);
+    switch (yytext[1]) {
+    case '(': // character sets
+        // not interested in implementing character sets, unicode should be
+        // sufficient
+        break;
+    default:
+        fprintf(stderr, "unhandled escape sequence: %s\n", yytext + 1);
+        break;
+    }
 }
 
 {CTRL} {
@@ -526,6 +542,16 @@ static void vt100_parser_handle_sm(VT100Screen *vt, char *buf, size_t len)
             case 2004:
                 vt100_screen_set_bracketed_paste(vt);
                 break;
+            case 12: // blinking cursor
+                // not interested in blinking cursors
+            case 1005: // UTF-8 mouse tracking mode
+                // will just default this to always on. might break some
+                // programs, but the programs that will break will already be
+                // broken for terms with width greater than 223.
+            case 1034: // interpret Meta key
+                // not actually sure if ignoring this is correct - need to see
+                // what exactly it does. don't think it's important though.
+                break;
             default:
                 fprintf(stderr,
                     "unknown SM parameter: %c%d\n", modes[i], params[i]);
@@ -585,6 +611,16 @@ static void vt100_parser_handle_rm(VT100Screen *vt, char *buf, size_t len)
             case 2004:
                 vt100_screen_reset_bracketed_paste(vt);
                 break;
+            case 12: // blinking cursor
+                // not interested in blinking cursors
+            case 1005: // UTF-8 mouse tracking mode
+                // will just default this to always on. might break some
+                // programs, but the programs that will break will already be
+                // broken for terms with width greater than 223.
+            case 1034: // interpret Meta key
+                // not actually sure if ignoring this is correct - need to see
+                // what exactly it does. don't think it's important though.
+                break;
             default:
                 fprintf(stderr,
                     "unknown RM parameter: %c%d\n", modes[i], params[i]);
@@ -738,6 +774,9 @@ static void vt100_parser_handle_sgr(VT100Screen *vt, char *buf, size_t len)
         case 104: case 105: case 106: case 107:
             vt100_screen_set_bg_color(vt, params[i] - 92);
             break;
+        case 5: // blink mode
+            // blinking terminals are awful
+            break;
         default:
             fprintf(stderr, "unknown SGR parameter: %d\n", params[i]);
             break;
-- 
cgit v1.2.3-54-g00ecf