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/*
* Copyright © 2017 Red Hat, Inc
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Christian J. Kellner <christian@kellner.me>
*/
#include "config.h"
#include "bolt-str.h"
#include "bolt-term.h"
#include <string.h>
#include <unistd.h>
int
bolt_is_fancy_terminal (void)
{
const char *val;
if (!isatty (STDOUT_FILENO))
return 0;
val = g_getenv ("TERM");
if (val && !g_ascii_strcasecmp (val, "dumb"))
return 0;
return 1;
}
const char *
bolt_color (const char *color)
{
static gint on = -1;
if (G_UNLIKELY (on == -1))
on = bolt_is_fancy_terminal ();
return on ? color : "";
}
/* borrowed from systemd */
static const char *const ansi_glphys[BOLT_GLYPH_LAST] = {
[TREE_VERTICAL] = "| ",
[TREE_BRANCH] = "|-",
[TREE_RIGHT] = "`-",
[TREE_SPACE] = " ",
[WHITE_CIRCLE] = "o",
[BLACK_CIRCLE] = "*",
[ARROW] = "->",
[MDASH] = "-",
[ELLIPSIS] = "...",
[WARNING_SIGN] = "!",
};
static const char *const utf8_glphys[BOLT_GLYPH_LAST] = {
[TREE_VERTICAL] = "\342\224\202 ", /* │ */
[TREE_BRANCH] = "\342\224\234\342\224\200", /* ├─ */
[TREE_RIGHT] = "\342\224\224\342\224\200", /* └─ */
[TREE_SPACE] = " ", /* */
[WHITE_CIRCLE] = "\342\227\213", /* ○ */
[BLACK_CIRCLE] = "\342\227\217", /* ● */
[ARROW] = "\342\206\222", /* → */
[MDASH] = "\342\200\223", /* – */
[ELLIPSIS] = "\342\200\246", /* … */
[WARNING_SIGN] = "\342\232\240", /* ⚠ */
};
const char *
bolt_glyph (BoltGlyph g)
{
static const char *const *glyph_table = NULL;
g_return_val_if_fail (g < BOLT_GLYPH_LAST, "?");
/* TODO: check for utf-8 support */
if (G_UNLIKELY (glyph_table == NULL))
{
if (bolt_is_fancy_terminal ())
glyph_table = utf8_glphys;
else
glyph_table = ansi_glphys;
}
return glyph_table[g];
}
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