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ls(1): Allow LSCOLORS to specify an underline
Allows capitalizing the background color character to enable an underline instead of bold, capitalizing the foreground color char will still do bold. Differential Revision: https://reviews.freebsd.org/D30547
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@ -66,6 +66,7 @@ extern char *ansi_bgcol;
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extern char *ansi_coloff;
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extern char *attrs_off;
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extern char *enter_bold;
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extern char *enter_underline;
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extern int colorflag;
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extern bool explicitansi;
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19
bin/ls/ls.1
19
bin/ls/ls.1
@ -740,6 +740,7 @@ where
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is the foreground color and
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.Ar b
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is the background color.
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When the background color is capitalized, the text will underlined.
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.Pp
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The color designators are as follows:
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.Pp
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@ -761,23 +762,25 @@ cyan
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.It Sy h
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light grey
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.It Sy A
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bold black, usually shows up as dark grey
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bold or underlined black, usually shows up as dark grey
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.It Sy B
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bold red
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bold or underlined red
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.It Sy C
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bold green
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bold or underlined green
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.It Sy D
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bold brown, usually shows up as yellow
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bold or underlined brown, usually shows up as yellow
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.It Sy E
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bold blue
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bold or underlined blue
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.It Sy F
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bold magenta
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bold or underlined magenta
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.It Sy G
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bold cyan
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bold or underlined cyan
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.It Sy H
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bold light grey; looks like bright white
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bold or underlined light grey; looks like bright white
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.It Sy x
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default foreground or background
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.It Sy X
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default foreground or background, with an underline or bold
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.El
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.Pp
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Note that the above are standard
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@ -159,6 +159,7 @@ 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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char *attrs_off; /* ANSI sequence to turn off attributes */
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char *enter_bold; /* ANSI sequence to set color to bold mode */
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char *enter_underline; /* ANSI sequence to enter underline mode */
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#endif
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static int rval;
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@ -485,6 +486,7 @@ main(int argc, char *argv[])
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ansi_bgcol = tgetstr("AB", &bp);
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attrs_off = tgetstr("me", &bp);
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enter_bold = tgetstr("md", &bp);
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enter_underline = tgetstr("us", &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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@ -106,7 +106,8 @@ static const char *defcolors = "exfxcxdxbxegedabagacad";
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/* colors for file types */
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static struct {
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int num[2];
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int bold;
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bool bold;
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bool underline;
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} colors[C_NUMCOLORS];
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#endif
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@ -548,6 +549,8 @@ printcolor_termcap(Colors c)
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if (colors[c].bold)
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tputs(enter_bold, 1, putch);
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if (colors[c].underline)
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tputs(enter_underline, 1, putch);
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if (colors[c].num[0] != -1) {
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ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]);
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@ -569,6 +572,8 @@ printcolor_ansi(Colors c)
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if (colors[c].bold)
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printf("1");
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if (colors[c].underline)
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printf(";4");
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if (colors[c].num[0] != -1)
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printf(";3%d", colors[c].num[0]);
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if (colors[c].num[1] != -1)
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@ -666,7 +671,8 @@ parsecolors(const char *cs)
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cs = ""; /* LSCOLORS not set */
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len = strlen(cs);
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for (i = 0; i < (int)C_NUMCOLORS; i++) {
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colors[i].bold = 0;
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colors[i].bold = false;
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colors[i].underline = false;
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if (len <= 2 * (size_t)i) {
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c[0] = defcolors[2 * i];
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@ -689,10 +695,15 @@ parsecolors(const char *cs)
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colors[i].num[j] = c[j] - 'a';
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else if (c[j] >= 'A' && c[j] <= 'H') {
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colors[i].num[j] = c[j] - 'A';
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colors[i].bold = 1;
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} else if (tolower((unsigned char)c[j]) == 'x')
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if (j == 1)
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colors[i].underline = true;
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else
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colors[i].bold = true;
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} else if (tolower((unsigned char)c[j]) == 'x') {
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if (j == 1 && c[j] == 'X')
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colors[i].underline = true;
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colors[i].num[j] = -1;
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else {
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} else {
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warnx("invalid character '%c' in LSCOLORS"
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" env var", c[j]);
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colors[i].num[j] = -1;
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