st

fork of suckless's simple terminal
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commit 53105cf74fde46229912275c073f8c0f219b05bb
parent aa35bbd7a16c6c210a7574a8c45bbe939d5b2922
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sat, 26 Apr 2014 01:45:10 +0200

Remove repeated initialisation of term.esc

Once a sequence is completed term.esc must return to 0, so
instead of repeating this expression in all the cases is
better put it at the end of the block.

Diffstat:
Mst.c | 24++++++------------------
1 file changed, 6 insertions(+), 18 deletions(-)
diff --git a/st.c b/st.c
@@ -2503,10 +2503,10 @@ tputc(char *c, int len) {
                 csiparse();
                 csihandle();
             }
+            return;
         } else if(term.esc & ESC_ALTCHARSET) {
             tdeftran(ascii);
             tselcs();
-            term.esc = 0;
         } else if(term.esc & ESC_TEST) {
             if(ascii == '8') { /* DEC screen alignment test. */
                 char E[UTF_SIZ] = "E";
@@ -2517,15 +2517,14 @@ tputc(char *c, int len) {
                         tsetchar(E, &term.c.attr, x, y);
                 }
             }
-            term.esc = 0;
         } else {
             switch(ascii) {
             case '[':
                 term.esc |= ESC_CSI;
-                break;
+                return;
             case '#':
                 term.esc |= ESC_TEST;
-                break;
+                return;
             case 'P': /* DCS -- Device Control String */
             case '_': /* APC -- Application Program Command */
             case '^': /* PM -- Privacy Message */
@@ -2534,29 +2533,26 @@ tputc(char *c, int len) {
                 strreset();
                 strescseq.type = ascii;
                 term.esc |= ESC_STR;
-                break;
+                return;
             case '(': /* set primary charset G0 */
             case ')': /* set secondary charset G1 */
             case '*': /* set tertiary charset G2 */
             case '+': /* set quaternary charset G3 */
                 term.icharset = ascii - '(';
                 term.esc |= ESC_ALTCHARSET;
-                break;
+                return;
             case 'D': /* IND -- Linefeed */
                 if(term.c.y == term.bot) {
                     tscrollup(term.top, 1);
                 } else {
                     tmoveto(term.c.x, term.c.y+1);
                 }
-                term.esc = 0;
                 break;
             case 'E': /* NEL -- Next line */
                 tnewline(1); /* always go to first col */
-                term.esc = 0;
                 break;
             case 'H': /* HTS -- Horizontal tab stop */
                 term.tabs[term.c.x] = 1;
-                term.esc = 0;
                 break;
             case 'M': /* RI -- Reverse index */
                 if(term.c.y == term.top) {
@@ -2564,46 +2560,38 @@ tputc(char *c, int len) {
                 } else {
                     tmoveto(term.c.x, term.c.y-1);
                 }
-                term.esc = 0;
                 break;
             case 'Z': /* DECID -- Identify Terminal */
                 ttywrite(VT102ID, sizeof(VT102ID) - 1);
-                term.esc = 0;
                 break;
             case 'c': /* RIS -- Reset to inital state */
                 treset();
-                term.esc = 0;
                 xresettitle();
                 xloadcols();
                 break;
             case '=': /* DECPAM -- Application keypad */
                 term.mode |= MODE_APPKEYPAD;
-                term.esc = 0;
                 break;
             case '>': /* DECPNM -- Normal keypad */
                 term.mode &= ~MODE_APPKEYPAD;
-                term.esc = 0;
                 break;
             case '7': /* DECSC -- Save Cursor */
                 tcursor(CURSOR_SAVE);
-                term.esc = 0;
                 break;
             case '8': /* DECRC -- Restore Cursor */
                 tcursor(CURSOR_LOAD);
-                term.esc = 0;
                 break;
             case '\\': /* ST -- String Terminator */
                 if(term.esc & ESC_STR_END)
                     strhandle();
-                term.esc = 0;
                 break;
             default:
                 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
                     (uchar) ascii, isprint(ascii)? ascii:'.');
-                term.esc = 0;
                 break;
             }
         }
+        term.esc = 0;
         /*
          * All characters which form part of a sequence are not
          * printed