Lennart Poettering
d8e32c471f
These functions are used pretty much independently of locale, i.e. the only info relevant is whether th locale is UTF-8 or not. Hence let's give this its own pair of .c/.h files.
130 lines
8.4 KiB
C
130 lines
8.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include "env-util.h"
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#include "glyph-util.h"
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#include "locale-util.h"
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#include "strv.h"
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bool emoji_enabled(void) {
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static int cached_emoji_enabled = -1;
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if (cached_emoji_enabled < 0) {
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int val;
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val = getenv_bool("SYSTEMD_EMOJI");
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if (val < 0)
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cached_emoji_enabled =
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is_locale_utf8() &&
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!STRPTR_IN_SET(getenv("TERM"), "dumb", "linux");
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else
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cached_emoji_enabled = val;
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}
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return cached_emoji_enabled;
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}
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const char *special_glyph(SpecialGlyph code) {
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/* A list of a number of interesting unicode glyphs we can use to decorate our output. It's probably wise to be
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* conservative here, and primarily stick to the glyphs defined in the eurlatgr font, so that display still
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* works reasonably well on the Linux console. For details see:
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*
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* http://git.altlinux.org/people/legion/packages/kbd.git?p=kbd.git;a=blob;f=data/consolefonts/README.eurlatgr
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*/
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static const char* const draw_table[2][_SPECIAL_GLYPH_MAX] = {
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/* ASCII fallback */
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[false] = {
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[SPECIAL_GLYPH_TREE_VERTICAL] = "| ",
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[SPECIAL_GLYPH_TREE_BRANCH] = "|-",
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[SPECIAL_GLYPH_TREE_RIGHT] = "`-",
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[SPECIAL_GLYPH_TREE_SPACE] = " ",
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[SPECIAL_GLYPH_TRIANGULAR_BULLET] = ">",
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[SPECIAL_GLYPH_BLACK_CIRCLE] = "*",
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[SPECIAL_GLYPH_WHITE_CIRCLE] = "*",
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[SPECIAL_GLYPH_MULTIPLICATION_SIGN] = "x",
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[SPECIAL_GLYPH_CIRCLE_ARROW] = "*",
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[SPECIAL_GLYPH_BULLET] = "*",
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[SPECIAL_GLYPH_MU] = "u",
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[SPECIAL_GLYPH_CHECK_MARK] = "+",
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[SPECIAL_GLYPH_CROSS_MARK] = "-",
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[SPECIAL_GLYPH_LIGHT_SHADE] = "-",
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[SPECIAL_GLYPH_DARK_SHADE] = "X",
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[SPECIAL_GLYPH_SIGMA] = "S",
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[SPECIAL_GLYPH_ARROW] = "->",
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[SPECIAL_GLYPH_ELLIPSIS] = "...",
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[SPECIAL_GLYPH_EXTERNAL_LINK] = "[LNK]",
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[SPECIAL_GLYPH_ECSTATIC_SMILEY] = ":-]",
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[SPECIAL_GLYPH_HAPPY_SMILEY] = ":-}",
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[SPECIAL_GLYPH_SLIGHTLY_HAPPY_SMILEY] = ":-)",
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[SPECIAL_GLYPH_NEUTRAL_SMILEY] = ":-|",
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[SPECIAL_GLYPH_SLIGHTLY_UNHAPPY_SMILEY] = ":-(",
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[SPECIAL_GLYPH_UNHAPPY_SMILEY] = ":-{",
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[SPECIAL_GLYPH_DEPRESSED_SMILEY] = ":-[",
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[SPECIAL_GLYPH_LOCK_AND_KEY] = "o-,",
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[SPECIAL_GLYPH_TOUCH] = "O=", /* Yeah, not very convincing, can you do it better? */
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[SPECIAL_GLYPH_RECYCLING] = "~",
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[SPECIAL_GLYPH_DOWNLOAD] = "\\",
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[SPECIAL_GLYPH_SPARKLES] = "*",
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},
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/* UTF-8 */
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[true] = {
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/* The following are multiple glyphs in both ASCII and in UNICODE */
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[SPECIAL_GLYPH_TREE_VERTICAL] = "\342\224\202 ", /* │ */
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[SPECIAL_GLYPH_TREE_BRANCH] = "\342\224\234\342\224\200", /* ├─ */
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[SPECIAL_GLYPH_TREE_RIGHT] = "\342\224\224\342\224\200", /* └─ */
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[SPECIAL_GLYPH_TREE_SPACE] = " ", /* */
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/* Single glyphs in both cases */
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[SPECIAL_GLYPH_TRIANGULAR_BULLET] = "\342\200\243", /* ‣ */
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[SPECIAL_GLYPH_BLACK_CIRCLE] = "\342\227\217", /* ● */
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[SPECIAL_GLYPH_WHITE_CIRCLE] = "\u25CB", /* ○ */
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[SPECIAL_GLYPH_MULTIPLICATION_SIGN] = "\u00D7", /* × */
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[SPECIAL_GLYPH_CIRCLE_ARROW] = "\u21BB", /* ↻ */
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[SPECIAL_GLYPH_BULLET] = "\342\200\242", /* • */
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[SPECIAL_GLYPH_MU] = "\316\274", /* μ (actually called: GREEK SMALL LETTER MU) */
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[SPECIAL_GLYPH_CHECK_MARK] = "\342\234\223", /* ✓ */
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[SPECIAL_GLYPH_CROSS_MARK] = "\342\234\227", /* ✗ (actually called: BALLOT X) */
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[SPECIAL_GLYPH_LIGHT_SHADE] = "\342\226\221", /* ░ */
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[SPECIAL_GLYPH_DARK_SHADE] = "\342\226\223", /* ▒ */
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[SPECIAL_GLYPH_SIGMA] = "\316\243", /* Σ */
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/* Single glyph in Unicode, two in ASCII */
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[SPECIAL_GLYPH_ARROW] = "\342\206\222", /* → (actually called: RIGHTWARDS ARROW) */
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/* Single glyph in Unicode, three in ASCII */
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[SPECIAL_GLYPH_ELLIPSIS] = "\342\200\246", /* … (actually called: HORIZONTAL ELLIPSIS) */
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/* Three glyphs in Unicode, five in ASCII */
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[SPECIAL_GLYPH_EXTERNAL_LINK] = "[\360\237\241\225]", /* 🡕 (actually called: NORTH EAST SANS-SERIF ARROW, enclosed in []) */
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/* These smileys are a single glyph in Unicode, and three in ASCII */
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[SPECIAL_GLYPH_ECSTATIC_SMILEY] = "\360\237\230\207", /* 😇 (actually called: SMILING FACE WITH HALO) */
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[SPECIAL_GLYPH_HAPPY_SMILEY] = "\360\237\230\200", /* 😀 (actually called: GRINNING FACE) */
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[SPECIAL_GLYPH_SLIGHTLY_HAPPY_SMILEY] = "\360\237\231\202", /* 🙂 (actually called: SLIGHTLY SMILING FACE) */
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[SPECIAL_GLYPH_NEUTRAL_SMILEY] = "\360\237\230\220", /* 😐 (actually called: NEUTRAL FACE) */
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[SPECIAL_GLYPH_SLIGHTLY_UNHAPPY_SMILEY] = "\360\237\231\201", /* 🙁 (actually called: SLIGHTLY FROWNING FACE) */
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[SPECIAL_GLYPH_UNHAPPY_SMILEY] = "\360\237\230\250", /* 😨 (actually called: FEARFUL FACE) */
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[SPECIAL_GLYPH_DEPRESSED_SMILEY] = "\360\237\244\242", /* 🤢 (actually called: NAUSEATED FACE) */
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/* This emoji is a single character cell glyph in Unicode, and three in ASCII */
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[SPECIAL_GLYPH_LOCK_AND_KEY] = "\360\237\224\220", /* 🔐 (actually called: CLOSED LOCK WITH KEY) */
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/* This emoji is a single character cell glyph in Unicode, and two in ASCII */
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[SPECIAL_GLYPH_TOUCH] = "\360\237\221\206", /* 👆 (actually called: BACKHAND INDEX POINTING UP) */
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/* These three emojis are single character cell glyphs in Unicode and also in ASCII. */
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[SPECIAL_GLYPH_RECYCLING] = "\u267B\uFE0F ", /* ♻️ (actually called: UNIVERSAL RECYCLNG SYMBOL) */
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[SPECIAL_GLYPH_DOWNLOAD] = "\u2935\uFE0F ", /* ⤵️ (actually called: RIGHT ARROW CURVING DOWN) */
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[SPECIAL_GLYPH_SPARKLES] = "\u2728", /* ✨ */
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},
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};
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if (code < 0)
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return NULL;
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assert(code < _SPECIAL_GLYPH_MAX);
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return draw_table[code >= _SPECIAL_GLYPH_FIRST_EMOJI ? emoji_enabled() : is_locale_utf8()][code];
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}
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