/* 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_full(SpecialGlyph code, bool force_utf) { /* 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_HORIZONTAL_DOTTED] = "-", [SPECIAL_GLYPH_HORIZONTAL_FAT] = "=", [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_FULL_BLOCK] = "#", [SPECIAL_GLYPH_SIGMA] = "S", [SPECIAL_GLYPH_ARROW_UP] = "^", [SPECIAL_GLYPH_ARROW_DOWN] = "v", [SPECIAL_GLYPH_ARROW_LEFT] = "<-", [SPECIAL_GLYPH_ARROW_RIGHT] = "->", [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] = "*", [SPECIAL_GLYPH_LOW_BATTERY] = "!", [SPECIAL_GLYPH_WARNING_SIGN] = "!", [SPECIAL_GLYPH_RED_CIRCLE] = "o", [SPECIAL_GLYPH_YELLOW_CIRCLE] = "o", [SPECIAL_GLYPH_BLUE_CIRCLE] = "o", [SPECIAL_GLYPH_GREEN_CIRCLE] = "o", }, /* 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_HORIZONTAL_DOTTED] = u8"┄", [SPECIAL_GLYPH_HORIZONTAL_FAT] = 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_FULL_BLOCK] = 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 four 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"✨", [SPECIAL_GLYPH_LOW_BATTERY] = u8"🪫", [SPECIAL_GLYPH_WARNING_SIGN] = u8"⚠️", [SPECIAL_GLYPH_COMPUTER_DISK] = u8"💽", [SPECIAL_GLYPH_WORLD] = u8"🌍", [SPECIAL_GLYPH_RED_CIRCLE] = u8"🔴", [SPECIAL_GLYPH_YELLOW_CIRCLE] = u8"🟡", [SPECIAL_GLYPH_BLUE_CIRCLE] = u8"🔵", [SPECIAL_GLYPH_GREEN_CIRCLE] = u8"🟢", }, }; if (code < 0) return NULL; assert(code < _SPECIAL_GLYPH_MAX); return draw_table[force_utf || (code >= _SPECIAL_GLYPH_FIRST_EMOJI ? emoji_enabled() : is_locale_utf8())][code]; }