mirror of
https://github.com/morgan9e/systemd
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140 lines
8.5 KiB
C
140 lines
8.5 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_TREE_TOP] = ",-",
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[SPECIAL_GLYPH_VERTICAL_DOTTED] = ":",
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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_LEFT] = "<-",
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[SPECIAL_GLYPH_ARROW_RIGHT] = "->",
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[SPECIAL_GLYPH_ARROW_UP] = "^",
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[SPECIAL_GLYPH_ARROW_DOWN] = "v",
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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] = u8"│ ",
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[SPECIAL_GLYPH_TREE_BRANCH] = u8"├─",
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[SPECIAL_GLYPH_TREE_RIGHT] = u8"└─",
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[SPECIAL_GLYPH_TREE_SPACE] = u8" ",
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[SPECIAL_GLYPH_TREE_TOP] = u8"┌─",
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/* Single glyphs in both cases */
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[SPECIAL_GLYPH_VERTICAL_DOTTED] = u8"┆",
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[SPECIAL_GLYPH_TRIANGULAR_BULLET] = u8"‣",
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[SPECIAL_GLYPH_BLACK_CIRCLE] = u8"●",
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[SPECIAL_GLYPH_WHITE_CIRCLE] = u8"○",
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[SPECIAL_GLYPH_MULTIPLICATION_SIGN] = u8"×",
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[SPECIAL_GLYPH_CIRCLE_ARROW] = u8"↻",
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[SPECIAL_GLYPH_BULLET] = u8"•",
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[SPECIAL_GLYPH_MU] = u8"μ", /* actually called: GREEK SMALL LETTER MU */
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[SPECIAL_GLYPH_CHECK_MARK] = u8"✓",
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[SPECIAL_GLYPH_CROSS_MARK] = u8"✗", /* actually called: BALLOT X */
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[SPECIAL_GLYPH_LIGHT_SHADE] = u8"░",
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[SPECIAL_GLYPH_DARK_SHADE] = u8"▒",
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[SPECIAL_GLYPH_SIGMA] = u8"Σ",
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[SPECIAL_GLYPH_ARROW_UP] = u8"↑", /* actually called: UPWARDS ARROW */
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[SPECIAL_GLYPH_ARROW_DOWN] = u8"↓", /* actually called: DOWNWARDS ARROW */
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/* Single glyph in Unicode, two in ASCII */
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[SPECIAL_GLYPH_ARROW_LEFT] = u8"←", /* actually called: LEFTWARDS ARROW */
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[SPECIAL_GLYPH_ARROW_RIGHT] = u8"→", /* actually called: RIGHTWARDS ARROW */
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/* Single glyph in Unicode, three in ASCII */
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[SPECIAL_GLYPH_ELLIPSIS] = u8"…", /* actually called: HORIZONTAL ELLIPSIS */
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/* Three glyphs in Unicode, five in ASCII */
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[SPECIAL_GLYPH_EXTERNAL_LINK] = u8"[🡕]", /* 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] = u8"😇", /* actually called: SMILING FACE WITH HALO */
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[SPECIAL_GLYPH_HAPPY_SMILEY] = u8"😀", /* actually called: GRINNING FACE */
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[SPECIAL_GLYPH_SLIGHTLY_HAPPY_SMILEY] = u8"🙂", /* actually called: SLIGHTLY SMILING FACE */
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[SPECIAL_GLYPH_NEUTRAL_SMILEY] = u8"😐", /* actually called: NEUTRAL FACE */
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[SPECIAL_GLYPH_SLIGHTLY_UNHAPPY_SMILEY] = u8"🙁", /* actually called: SLIGHTLY FROWNING FACE */
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[SPECIAL_GLYPH_UNHAPPY_SMILEY] = u8"😨", /* actually called: FEARFUL FACE */
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[SPECIAL_GLYPH_DEPRESSED_SMILEY] = u8"🤢", /* 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] = u8"🔐", /* 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] = u8"👆", /* 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] = u8"♻️", /* actually called: UNIVERSAL RECYCLNG SYMBOL */
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[SPECIAL_GLYPH_DOWNLOAD] = u8"⤵️", /* actually called: RIGHT ARROW CURVING DOWN */
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[SPECIAL_GLYPH_SPARKLES] = u8"✨",
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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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