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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "env-util.h"
#include "glyph-util.h"
#include "locale-util.h"
#include "strv.h"
bool emoji_enabled(void) {
static int cached_emoji_enabled = -1;
if (cached_emoji_enabled < 0) {
int val = getenv_bool("SYSTEMD_EMOJI");
if (val >= 0)
return (cached_emoji_enabled = val);
const char *term = getenv("TERM");
if (!term || STR_IN_SET(term, "dumb", "linux"))
return (cached_emoji_enabled = false);
cached_emoji_enabled = is_locale_utf8();
}
return cached_emoji_enabled;
}
const char *special_glyph(SpecialGlyph code) {
/* A list of a number of interesting unicode glyphs we can use to decorate our output. It's probably wise to be
* conservative here, and primarily stick to the glyphs defined in the eurlatgr font, so that display still
* works reasonably well on the Linux console. For details see:
*
* http://git.altlinux.org/people/legion/packages/kbd.git?p=kbd.git;a=blob;f=data/consolefonts/README.eurlatgr
*/
static const char* const draw_table[2][_SPECIAL_GLYPH_MAX] = {
/* ASCII fallback */
[false] = {
[SPECIAL_GLYPH_TREE_VERTICAL] = "| ",
[SPECIAL_GLYPH_TREE_BRANCH] = "|-",
[SPECIAL_GLYPH_TREE_RIGHT] = "`-",
[SPECIAL_GLYPH_TREE_SPACE] = " ",
[SPECIAL_GLYPH_TREE_TOP] = ",-",
[SPECIAL_GLYPH_VERTICAL_DOTTED] = ":",
[SPECIAL_GLYPH_TRIANGULAR_BULLET] = ">",
[SPECIAL_GLYPH_BLACK_CIRCLE] = "*",
[SPECIAL_GLYPH_WHITE_CIRCLE] = "*",
[SPECIAL_GLYPH_MULTIPLICATION_SIGN] = "x",
[SPECIAL_GLYPH_CIRCLE_ARROW] = "*",
[SPECIAL_GLYPH_BULLET] = "*",
[SPECIAL_GLYPH_MU] = "u",
[SPECIAL_GLYPH_CHECK_MARK] = "+",
[SPECIAL_GLYPH_CROSS_MARK] = "-",
[SPECIAL_GLYPH_LIGHT_SHADE] = "-",
[SPECIAL_GLYPH_DARK_SHADE] = "X",
[SPECIAL_GLYPH_SIGMA] = "S",
[SPECIAL_GLYPH_ARROW_LEFT] = "<-",
[SPECIAL_GLYPH_ARROW_RIGHT] = "->",
[SPECIAL_GLYPH_ARROW_UP] = "^",
[SPECIAL_GLYPH_ARROW_DOWN] = "v",
[SPECIAL_GLYPH_ELLIPSIS] = "...",
[SPECIAL_GLYPH_EXTERNAL_LINK] = "[LNK]",
[SPECIAL_GLYPH_ECSTATIC_SMILEY] = ":-]",
[SPECIAL_GLYPH_HAPPY_SMILEY] = ":-}",
[SPECIAL_GLYPH_SLIGHTLY_HAPPY_SMILEY] = ":-)",
[SPECIAL_GLYPH_NEUTRAL_SMILEY] = ":-|",
[SPECIAL_GLYPH_SLIGHTLY_UNHAPPY_SMILEY] = ":-(",
[SPECIAL_GLYPH_UNHAPPY_SMILEY] = ":-{",
[SPECIAL_GLYPH_DEPRESSED_SMILEY] = ":-[",
[SPECIAL_GLYPH_LOCK_AND_KEY] = "o-,",
[SPECIAL_GLYPH_TOUCH] = "O=", /* Yeah, not very convincing, can you do it better? */
[SPECIAL_GLYPH_RECYCLING] = "~",
[SPECIAL_GLYPH_DOWNLOAD] = "\\",
[SPECIAL_GLYPH_SPARKLES] = "*",
},
/* UTF-8 */
[true] = {
/* The following are multiple glyphs in both ASCII and in UNICODE */
[SPECIAL_GLYPH_TREE_VERTICAL] = u8"│ ",
[SPECIAL_GLYPH_TREE_BRANCH] = u8"├─",
[SPECIAL_GLYPH_TREE_RIGHT] = u8"└─",
[SPECIAL_GLYPH_TREE_SPACE] = u8" ",
[SPECIAL_GLYPH_TREE_TOP] = u8"┌─",
/* Single glyphs in both cases */
[SPECIAL_GLYPH_VERTICAL_DOTTED] = u8"┆",
[SPECIAL_GLYPH_TRIANGULAR_BULLET] = u8"‣",
[SPECIAL_GLYPH_BLACK_CIRCLE] = u8"●",
[SPECIAL_GLYPH_WHITE_CIRCLE] = u8"○",
[SPECIAL_GLYPH_MULTIPLICATION_SIGN] = u8"×",
[SPECIAL_GLYPH_CIRCLE_ARROW] = u8"↻",
[SPECIAL_GLYPH_BULLET] = u8"•",
[SPECIAL_GLYPH_MU] = u8"μ", /* actually called: GREEK SMALL LETTER MU */
[SPECIAL_GLYPH_CHECK_MARK] = u8"✓",
[SPECIAL_GLYPH_CROSS_MARK] = u8"✗", /* actually called: BALLOT X */
[SPECIAL_GLYPH_LIGHT_SHADE] = u8"░",
[SPECIAL_GLYPH_DARK_SHADE] = u8"▒",
[SPECIAL_GLYPH_SIGMA] = u8"Σ",
[SPECIAL_GLYPH_ARROW_UP] = u8"↑", /* actually called: UPWARDS ARROW */
[SPECIAL_GLYPH_ARROW_DOWN] = u8"↓", /* actually called: DOWNWARDS ARROW */
/* Single glyph in Unicode, two in ASCII */
[SPECIAL_GLYPH_ARROW_LEFT] = u8"←", /* actually called: LEFTWARDS ARROW */
[SPECIAL_GLYPH_ARROW_RIGHT] = u8"→", /* actually called: RIGHTWARDS ARROW */
/* Single glyph in Unicode, three in ASCII */
[SPECIAL_GLYPH_ELLIPSIS] = u8"…", /* actually called: HORIZONTAL ELLIPSIS */
/* Three glyphs in Unicode, five in ASCII */
[SPECIAL_GLYPH_EXTERNAL_LINK] = u8"[🡕]", /* actually called: NORTH EAST SANS-SERIF ARROW, enclosed in [] */
/* These smileys are a single glyph in Unicode, and three in ASCII */
[SPECIAL_GLYPH_ECSTATIC_SMILEY] = u8"😇", /* actually called: SMILING FACE WITH HALO */
[SPECIAL_GLYPH_HAPPY_SMILEY] = u8"😀", /* actually called: GRINNING FACE */
[SPECIAL_GLYPH_SLIGHTLY_HAPPY_SMILEY] = u8"🙂", /* actually called: SLIGHTLY SMILING FACE */
[SPECIAL_GLYPH_NEUTRAL_SMILEY] = u8"😐", /* actually called: NEUTRAL FACE */
[SPECIAL_GLYPH_SLIGHTLY_UNHAPPY_SMILEY] = u8"🙁", /* actually called: SLIGHTLY FROWNING FACE */
[SPECIAL_GLYPH_UNHAPPY_SMILEY] = u8"😨", /* actually called: FEARFUL FACE */
[SPECIAL_GLYPH_DEPRESSED_SMILEY] = u8"🤢", /* actually called: NAUSEATED FACE */
/* This emoji is a single character cell glyph in Unicode, and three in ASCII */
[SPECIAL_GLYPH_LOCK_AND_KEY] = u8"🔐", /* actually called: CLOSED LOCK WITH KEY */
/* This emoji is a single character cell glyph in Unicode, and two in ASCII */
[SPECIAL_GLYPH_TOUCH] = u8"👆", /* actually called: BACKHAND INDEX POINTING UP */
/* These three emojis are single character cell glyphs in Unicode and also in ASCII. */
[SPECIAL_GLYPH_RECYCLING] = u8"♻️", /* actually called: UNIVERSAL RECYCLNG SYMBOL */
[SPECIAL_GLYPH_DOWNLOAD] = u8"⤵️", /* actually called: RIGHT ARROW CURVING DOWN */
[SPECIAL_GLYPH_SPARKLES] = u8"✨",
},
};
if (code < 0)
return NULL;
assert(code < _SPECIAL_GLYPH_MAX);
return draw_table[code >= _SPECIAL_GLYPH_FIRST_EMOJI ? emoji_enabled() : is_locale_utf8()][code];
}
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