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Don't look up the ANSI sequences each time a colour is changed,
this is extremely inefficient, instead write them all down at the beginning. The correct sequence to switch colours off is to first use 'op' if it exists, otherwise use 'oc'. If neither of these exist then we shouldn't be doing colour with this terminal. Reviewed by: ache
This commit is contained in:
parent
f68de48880
commit
5a890e22bf
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=61271
@ -55,4 +55,8 @@ int prn_octal __P((char *));
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void parsecolors __P((char *cs));
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int colortype __P((mode_t mode));
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void endcolor __P((void));
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char *ansi_fgcol;
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char *ansi_bgcol;
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char *ansi_coloff;
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#endif
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25
bin/ls/ls.c
25
bin/ls/ls.c
@ -119,6 +119,10 @@ int f_type; /* add type character for non-regular files */
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int f_whiteout; /* show whiteout entries */
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#ifdef COLORLS
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int f_color; /* add type in color for non-regular files */
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char *ansi_bgcol; /* ANSI sequence to set background colour */
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char *ansi_fgcol; /* ANSI sequence to set foreground colour */
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char *ansi_coloff; /* ANSI sequence to reset colours */
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#endif
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int rval;
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@ -133,6 +137,12 @@ main(argc, argv)
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int ch, fts_options, notused;
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char *p;
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#ifdef COLORLS
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char termcapbuf[1024]; /* termcap definition buffer */
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char tcapbuf[512]; /* capability buffer */
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char *bp = tcapbuf;
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#endif
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(void) setlocale(LC_ALL, "");
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/* Terminal defaults to -Cq, non-terminal defaults to -1. */
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@ -198,8 +208,19 @@ main(argc, argv)
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case 'G':
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if (isatty(STDOUT_FILENO))
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#ifdef COLORLS
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if (tgetent(NULL, getenv("TERM")) == 1)
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f_color = 1;
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if (tgetent(termcapbuf, getenv("TERM")) == 1) {
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ansi_fgcol = tgetstr("AF", &bp);
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ansi_bgcol = tgetstr("AB", &bp);
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/* To switch colours off use 'op' if
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* available, otherwise use 'oc', or
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* don't do colours at all. */
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ansi_coloff = tgetstr("op", &bp);
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if (!ansi_coloff)
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ansi_coloff = tgetstr("oc", &bp);
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if (ansi_fgcol && ansi_bgcol && ansi_coloff)
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f_color = 1;
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}
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#else
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(void)fprintf(stderr, "Color support not compiled in.\n");
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#endif
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@ -352,22 +352,20 @@ printtype(mode)
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}
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#ifdef COLORLS
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static char tcapbuf[512];
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void
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printcolor(c)
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Colors c;
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{
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char *bp = tcapbuf;
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char *ansiseq;
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if (colors[c][0] != -1) {
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ansiseq = tparm(tgetstr("AF", &bp), colors[c][0]);
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ansiseq = tparm(ansi_fgcol, colors[c][0]);
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if (ansiseq)
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putp(ansiseq);
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}
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if (colors[c][1] != -1) {
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ansiseq = tparm(tgetstr("AB", &bp), colors[c][1]);
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ansiseq = tparm(ansi_bgcol, colors[c][1]);
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if (ansiseq)
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putp(ansiseq);
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}
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@ -376,11 +374,8 @@ printcolor(c)
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void
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endcolor()
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{
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char *bp = tcapbuf;
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char *ansiseq;
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ansiseq = tgetstr("se", &bp);
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if (ansiseq)
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putp(ansiseq);
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if (ansi_coloff)
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putp(ansi_coloff);
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}
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int
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