Add fcitx5 module

.gitignore

@@ -1,3 +1,3 @@
-blocks.h
 dwmblocks
-dwmblocks-pulse-listener
+config.mk
+blocks.h

Makefile

@@ -1,43 +1,38 @@
-PREFIX  := /usr/local
-CC      := cc
-CFLAGS  := -pedantic -Wall -Wno-deprecated-declarations -Os
-LDFLAGS := -lX11
-PULSEFLAGS := -lpulse
+include config.mk
 
-# FreeBSD (uncomment)
-#LDFLAGS += -L/usr/local/lib -I/usr/local/include
-# # OpenBSD (uncomment)
-#LDFLAGS += -L/usr/X11R6/lib -I/usr/X11R6/include
-
-all: options dwmblocks dwmblocks-pulse-listener
+all: options dwmblocks
 
 options:
 	@echo dwmblocks build options:
-	@echo "CFLAGS  = ${CFLAGS}"
+	@echo "CFLAGS  = ${CFLAGS} ${NO_X}"
 	@echo "LDFLAGS = ${LDFLAGS}"
 	@echo "CC      = ${CC}"
 	@echo "PULSEFLAGS = ${PULSEFLAGS}"
 
-dwmblocks: dwmblocks.c blocks.def.h blocks.h
-	${CC} -o dwmblocks dwmblocks.c ${CFLAGS} ${LDFLAGS}
-
-dwmblocks-pulse-listener: dwmblocks-pulse-listener.c
-	${CC} -o dwmblocks-pulse-listener dwmblocks-pulse-listener.c ${CFLAGS} ${PULSEFLAGS}
+dwmblocks: dwmblocks.c pulse-listener.c blocks.def.h blocks.h
+	${CC} ${NO_X} -o dwmblocks dwmblocks.c pulse-listener.c ${CFLAGS} ${PULSEFLAGS} ${LDFLAGS}
 
 blocks.h:
 	cp blocks.def.h $@
 
+config.mk:
+	cp config.def.mk $@
+
 clean:
-	rm -f *.o *.gch dwmblocks dwmblocks-pulse-listener
+	rm -f *.o *.gch dwmblocks
 
 install: dwmblocks
 	mkdir -p ${DESTDIR}${PREFIX}/bin
 	cp -f dwmblocks ${DESTDIR}${PREFIX}/bin
-	cp -f dwmblocks-pulse-listener ${DESTDIR}${PREFIX}/bin
 	chmod 755 ${DESTDIR}${PREFIX}/bin/dwmblocks
 	install -m0755 scripts/* ${DESTDIR}${PREFIX}/bin
 
 uninstall:
-	rm -f ${DESTDIR}${PREFIX}/bin/dwmblocks
+	rm -f ${DESTDIR}${PREFIX}/bin/dwmblocks \
+		${DESTDIR}${PREFIX}/bin/dwmblocks-battery \
+		${DESTDIR}${PREFIX}/bin/dwmblocks-network \
+		${DESTDIR}${PREFIX}/bin/dwmblocks-volume \
+		${DESTDIR}${PREFIX}/bin/dwmblocks-fcitx5 \
+		${DESTDIR}${PREFIX}/bin/dwmblocks-mu4e
 
 .PHONY: all options clean install uninstall

README.md

@@ -1,15 +1,26 @@
 # dwmblocks
-Modular status bar for dwm written in c.
-# usage
+My personal fork of dwmblocks. Original found
+[here](https://github.com/torrinfail/dwmblocks).
+
+Dwmblocks is a modular status bar for dwm written in c.
+
+## Usage
 To use dwmblocks first run 'make' and then install it with 'sudo make install'.
-After that you can put dwmblocks in your xinitrc or other startup script to have it start with dwm.
-# modifying blocks
-The statusbar is made from text output from commandline programs.
-Blocks are added and removed by editing the blocks.h header file.
-By default the blocks.h header file is created the first time you run make which copies the default config from blocks.def.h.
-This is so you can edit your status bar commands and they will not get overwritten in a future update.
-# patches
-Here are some patches to dwmblocks that add features that I either don't want to merge in, or that require a dwm patch to work.
-I do not maintain these but I will take pull requests to update them.
-<br>
-<a href=https://gist.github.com/IGeraGera/e4a5583b91b3eec2e81fdceb44dea717>dwmblocks-statuscmd-b6b0be4.diff</a>
+After that you can put dwmblocks in your xinitrc or other startup script to have
+it start with dwm.
+
+The dwmblocks-pulse-listener program is a small daemon that takes the pid of a
+dwmblocks instance and notifies it of pulse audio volume changes.
+
+## Modifying Blocks
+The status bar is made from text output from command-line programs. Blocks are
+added and removed by editing the blocks.h header file. By default the blocks.h
+header file is created the first time you run make which copies the default
+config from blocks.def.h. This is so you can edit your status bar commands and
+they will not get overwritten in a future update.
+
+## Other Changes
+Note that the intervals listed in blocks.h are in milliseconds (1/1000 second).
+Because of this, the SECONDS() macro is provided for readability. I also
+implemented some changes from Luke Smith's fork found
+[here](https://github.com/LukeSmithxyz/dwmblocks).

blocks.def.h

@@ -3,13 +3,22 @@
 
 static const Block blocks[] = {
     /*Icon*/    /*Command*/     /*Update Interval*/ /*Update Signal*/
-    {"", "dwmblocks-battery", SECONDS(10), 0},
+    // {"", "dwmblocks-battery", SECONDS(10), 0},
+    {"", "[ \"$(fcitx5-remote)\" -eq 2 ] && printf '和' || printf '英'", 0, 2},
+    {"", "dwmblocks-mu4e", SECONDS(15), 0},
     {"", "dwmblocks-volume", 0, 1},
     {" ", "date +'%a %b %d'", SECONDS(30), 0},
     {" ", "date +'%R'", SECONDS(2), 0},
     {"", "dwmblocks-network", SECONDS(5), 0},
+    //{"", "dwmblocks-fcitx5", 250, 0},
+};
+
+#include "pulse-listener.h"
+
+static const ThreadCallback thread_callbacks[] = {
+    pulse_listener_main
 };
 
 // sets delimeter between status commands. NULL character ('\0') means no delimeter.
 static char delim[] = "  ";
-static unsigned int delimLen = 5;
+static unsigned int delimLen = 2;

config.def.mk

@@ -0,0 +1,14 @@
+PREFIX  := /usr/local
+CC      := cc
+CFLAGS  := -pedantic -Wall -Wno-deprecated-declarations -Os
+LDFLAGS := -lX11
+PULSEFLAGS := -lpulse
+
+NO_X =
+# Uncomment to build without X11
+# NO_X = -DNO_X
+
+# FreeBSD (uncomment)
+#LDFLAGS += -L/usr/local/lib -I/usr/local/include
+# OpenBSD (uncomment)
+#LDFLAGS += -L/usr/X11R6/lib -I/usr/X11R6/include

dwmblocks-pulse-listener.c

@@ -1,125 +0,0 @@
-#include <pulse/pulseaudio.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/signal.h>
-#include <limits.h>
-
-#define ERROR(...) fprintf(stderr, "error: " __VA_ARGS__)
-
-typedef struct {
-    size_t pid;
-    unsigned int signum;
-} TargetData;
-
-static void sink_info_callback(pa_context *ctx, const pa_sink_info *info,
-                               int eol, TargetData *target) {
-    if (info && kill(target->pid, target->signum) < 0) {
-        ERROR("terget process died\n");
-        exit(1);
-    }
-}
-
-static void server_info_callback(pa_context *ctx, const pa_server_info *info,
-                                 TargetData *target) {
-    pa_operation *op = pa_context_get_sink_info_by_name(
-            ctx,
-            info->default_sink_name,
-            (pa_sink_info_cb_t) sink_info_callback,
-            target);
-    pa_operation_unref(op);
-}
-
-static void subscribe_callback(pa_context *ctx,
-                               pa_subscription_event_type_t type, uint32_t idx,
-                               TargetData *target) {
-    unsigned int facility = type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK;
-    pa_operation *op = NULL;
-    switch (facility) {
-    case PA_SUBSCRIPTION_EVENT_SINK:
-        op = pa_context_get_sink_info_by_index(ctx,
-                                               idx,
-                                               (pa_sink_info_cb_t) sink_info_callback,
-                                               target);
-        break;
-    }
-    if (op) {
-        pa_operation_unref(op);
-    }
-}
-
-static void state_callback(pa_context *ctx, TargetData *target) {
-    pa_operation *op;
-    switch (pa_context_get_state(ctx)) {
-    case PA_CONTEXT_READY:
-        op = pa_context_get_server_info(ctx,
-                                        (pa_server_info_cb_t) server_info_callback,
-                                        target);
-        pa_operation_unref(op);
-        pa_context_set_subscribe_callback(ctx,
-                                          (pa_context_subscribe_cb_t) subscribe_callback,
-                                          target);
-        op = pa_context_subscribe(ctx, PA_SUBSCRIPTION_MASK_SINK, NULL, NULL);
-        pa_operation_unref(op);
-        break;
-    case PA_CONTEXT_FAILED:
-        if (kill(target->pid, target->signum) < 0) {
-            ERROR("terget process died\n");
-            exit(1);
-        }
-        break;
-    default:
-        break;
-    }
-}
-
-int main(int argc, const char **argv) {
-    if (argc < 2) {
-        ERROR("no pid\n");
-        return 1;
-    }
-    char *endptr = NULL;
-    unsigned int signum = SIGRTMIN + 1;
-    if (argc >= 3 && argv[1][0] == '-') {
-        const char *signumstr = argv[1] + 1;
-        unsigned long num = strtoul(signumstr, &endptr, 10);
-        if (num > (SIGRTMAX - SIGRTMIN) + 1) {
-            ERROR("signal out of range: %lu\n", num);
-            return 1;
-        }
-        signum = SIGRTMIN + num;
-        ++argv;
-    }
-    endptr = NULL;
-    errno = 0;
-    unsigned long pid = strtoul(argv[1], &endptr, 10);
-    if (argv[1][0] == '-' || errno == ERANGE) {
-        ERROR("pid out of range: \"%s\"\n", argv[1]);
-        return 1;
-    }
-    pa_mainloop *mainloop = pa_mainloop_new();
-    if (!mainloop) {
-        ERROR("could not create pulse mainloop\n");
-        return 1;
-    }
-    pa_mainloop_api *api = pa_mainloop_get_api(mainloop);
-    if (!api) {
-        ERROR("could not create pulse mainloop api\n");
-        return 1;
-    }
-    pa_context *context = pa_context_new(api, "dwmblocks-listener");
-    if (!context) {
-        ERROR("could not create pulse context\n");
-        return 1;
-    }
-    TargetData target = { pid, signum };
-    pa_context_set_state_callback( context,
-                                  (pa_context_notify_cb_t)&state_callback,
-                                  &target);
-    if (pa_context_connect(context, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL) < 0) {
-        ERROR("could not connect to pulse");
-        return 1;
-    }
-    pa_mainloop_run(mainloop, NULL);
-    return 0;
-}

dwmblocks.c

@@ -5,12 +5,13 @@
 #include<signal.h>
 #include <time.h>
 #include <math.h>
+#include <pthread.h>
 #ifndef NO_X
 #include<X11/Xlib.h>
 #endif
 #ifdef __OpenBSD__
-#define SIGPLUS      SIGUSR1+1
-#define SIGMINUS     SIGUSR1-1
+#define SIGPLUS      (SIGUSR1 + 1)
+#define SIGMINUS     (SIGUSR1 - 1)
 #else
 #define SIGPLUS      SIGRTMIN
 #define SIGMINUS     SIGRTMIN
@@ -27,6 +28,7 @@ typedef struct {
     unsigned int interval;
     unsigned int signal;
 } Block;
+typedef void(*ThreadCallback)(pthread_t *);
 void getcmd(const Block *block, char *output);
 void getcmds(int time);
 void getsigcmds(unsigned int signal);
@@ -38,7 +40,9 @@ void setupsignals(void);
 int getstatus(char *str, char *last);
 void pstdout(void);
 int gcd(int n1, int n2);
+void startthreads(void);
 void statusloop(void);
+void stopthreads(void);
 void termhandler(void);
 #ifndef NO_X
 void setroot(void);
@@ -57,6 +61,10 @@ static char statusbar[LENGTH(blocks)][CMDLENGTH] = {0};
 static char statusstr[2][STATUSLENGTH];
 static int statuscontinue = 1;
 
+static pthread_t main_thread;
+static pthread_t threads[LENGTH(thread_callbacks)];
+static int initdone = 0;
+
 //opens process *cmd and stores output in *output
 void getcmd(const Block *block, char *output) {
     strcpy(output, block->icon);
@@ -87,7 +95,7 @@ void getcmds(int time) {
     for (unsigned int i = 0; i < LENGTH(blocks); ++i) {
         current = blocks + i;
         if ((current->interval != 0 && time % current->interval == 0) || time == -1) {
-            getcmd(current,statusbar[i]);
+            getcmd(current, statusbar[i]);
         }
     }
 }
@@ -97,7 +105,7 @@ void getsigcmds(unsigned int signal) {
     for (unsigned int i = 0; i < LENGTH(blocks); ++i) {
         current = blocks + i;
         if (current->signal == signal) {
-            getcmd(current,statusbar[i]);
+            getcmd(current, statusbar[i]);
         }
     }
 }
@@ -141,10 +149,18 @@ int getstatus(char *str, char *last) {
 }
 
 void pstdout() {
-    if (!getstatus(statusstr[0], statusstr[1])) { //Only write out if text has changed.
+    if (!initdone || !getstatus(statusstr[0], statusstr[1])) { //Only write out if text has changed.
         return;
     }
-    printf("%s\n",statusstr[0]);
+    printf("%s\n", statusstr[0]);
+    fflush(stdout);
+}
+
+void somebar_pstdout() {
+    if (!initdone || !getstatus(statusstr[0], statusstr[1])) { //Only write out if text has changed.
+        return;
+    }
+    printf("status %s\n", statusstr[0]);
     fflush(stdout);
 }
 
@@ -158,6 +174,16 @@ int gcd(int n1, int n2) {
 	return n1;
 }
 
+void startthreads() {
+    main_thread = pthread_self();
+    for (int i = 0; i < LENGTH(thread_callbacks); ++i) {
+        pthread_create(&threads[i],
+                       NULL,
+                       (void *(*)(void *)) thread_callbacks[i],
+                       &main_thread);
+    }
+}
+
 void statusloop() {
     setupsignals();
     unsigned int interval = -1;
@@ -166,6 +192,7 @@ void statusloop() {
             interval = gcd(blocks[i].interval, interval);
         }
     }
+    startthreads();
     int i = 0;
     getcmds(-1);
     long nsec_part = interval * 1000000;
@@ -174,6 +201,7 @@ void statusloop() {
     const struct timespec sleeptime = { sec_part, nsec_part };
     struct timespec tosleep = sleeptime;
     while (statuscontinue) {
+        initdone = 1;
         if (nanosleep(&tosleep, &tosleep) < 0) {
             continue;
         }
@@ -183,13 +211,20 @@ void statusloop() {
     }
 }
 
+void stopthreads() {
+    for (int i = 0; i < LENGTH(thread_callbacks); ++i) {
+        pthread_cancel(threads[i]);
+        pthread_join(threads[i], NULL);
+    }
+}
+
 void termhandler() {
     statuscontinue = 0;
 }
 
 #ifndef NO_X
 void setroot() {
-    if (!getstatus(statusstr[0], statusstr[1])) { //Only set root if text has changed.
+    if (!initdone || !getstatus(statusstr[0], statusstr[1])) { //Only set root if text has changed.
         return;
     }
     XStoreName(dpy, root, statusstr[0]);
@@ -214,6 +249,8 @@ int main(int argc, char** argv) {
             strncpy(delim, argv[++i], delimLen);
         } else if (strcmp("-p", argv[i]) == 0) {
             writestatus = pstdout;
+        } else if (strcmp("-s", argv[i]) == 0) {
+            writestatus = somebar_pstdout;
         }
     }
 #ifndef NO_X
@@ -229,5 +266,6 @@ int main(int argc, char** argv) {
 #ifndef NO_X
     XCloseDisplay(dpy);
 #endif
+    stopthreads();
     return 0;
 }

pulse-listener.c

@@ -0,0 +1,103 @@
+#include "pulse-listener.h"
+
+#include <pulse/pulseaudio.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <limits.h>
+
+#define ERROR(...) fprintf(stderr, "error: " __VA_ARGS__)
+
+#ifdef __OpenBSD__
+#define SIGMAX     (SIGUSR2 - 1)
+#define SIGMIN     (SIGUSR1 - 1)
+#else
+#define SIGMAX     SIGRTMAX
+#define SIGMIN     SIGRTMIN
+#endif
+
+static void sink_info_callback(pa_context *ctx, const pa_sink_info *info,
+                               int eol, pthread_t *main_thread) {
+    pthread_kill(*main_thread, SIGMIN + 1);
+}
+
+static void server_info_callback(pa_context *ctx, const pa_server_info *info,
+                                 pthread_t *main_thread) {
+    pa_operation *op = pa_context_get_sink_info_by_name(
+            ctx,
+            info->default_sink_name,
+            (pa_sink_info_cb_t) sink_info_callback,
+            main_thread);
+    pa_operation_unref(op);
+}
+
+static void subscribe_callback(pa_context *ctx,
+                               pa_subscription_event_type_t type, uint32_t idx,
+                               pthread_t *main_thread) {
+    if ((type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SINK) {
+        pa_operation *op = pa_context_get_sink_info_by_index(ctx,
+                           idx,
+                           (pa_sink_info_cb_t) sink_info_callback,
+                           main_thread);
+        pa_operation_unref(op);
+    }
+}
+
+static void state_callback(pa_context *ctx, pthread_t *main_thread) {
+    pa_operation *op;
+    switch (pa_context_get_state(ctx)) {
+    case PA_CONTEXT_READY:
+        op = pa_context_get_server_info(ctx,
+                                        (pa_server_info_cb_t) server_info_callback,
+                                        main_thread);
+        pa_operation_unref(op);
+        pa_context_set_subscribe_callback(ctx,
+                                          (pa_context_subscribe_cb_t) subscribe_callback,
+                                          main_thread);
+        op = pa_context_subscribe(ctx, PA_SUBSCRIPTION_MASK_SINK, NULL, NULL);
+        pa_operation_unref(op);
+        break;
+    case PA_CONTEXT_FAILED:
+        pthread_kill(*main_thread, SIGMIN + 1);
+        break;
+    default:
+        break;
+    }
+}
+
+static void cleanup(void *data_to_free[2]) {
+    pa_context_unref(data_to_free[1]);
+    pa_mainloop_free(data_to_free[0]);
+}
+
+void pulse_listener_main(pthread_t *main_thread) {
+    pthread_setcanceltype(PTHREAD_CANCEL_DISABLE, NULL);
+    pa_mainloop *mainloop = pa_mainloop_new();
+    if (!mainloop) {
+        ERROR("could not create pulse mainloop\n");
+        return;
+    }
+    pa_mainloop_api *api = pa_mainloop_get_api(mainloop);
+    if (!api) {
+        ERROR("could not create pulse mainloop api\n");
+        return;
+    }
+    pa_context *context = pa_context_new(api, "dwmblocks-listener");
+    if (!context) {
+        ERROR("could not create pulse context\n");
+        return;
+    }
+    pa_context_set_state_callback(context,
+                                  (pa_context_notify_cb_t)&state_callback,
+                                  main_thread);
+    if (pa_context_connect(context, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL) < 0) {
+        ERROR("could not connect to pulse\n");
+        return;
+    }
+    void *data_to_free[2] = { mainloop, context };
+    pthread_cleanup_push((void(*)(void *)) cleanup, data_to_free);
+    pthread_setcanceltype(PTHREAD_CANCEL_ENABLE, NULL);
+    pa_mainloop_run(mainloop, NULL);
+    pthread_cleanup_pop(1);
+}

pulse-listener.h

@@ -0,0 +1,8 @@
+#ifndef INCLUDED_PULSE_LISTENER_H
+#define INCLUDED_PULSE_LISTENER_H
+
+#include <pthread.h>
+
+void pulse_listener_main(pthread_t *main_thread);
+
+#endif

scripts/dwmblocks-battery

@@ -9,42 +9,37 @@ if [[ "$(uname)" = 'Linux' ]]; then
 
     function is_adapted_connected {
         let connected="$(cat /sys/class/power_supply/ADP1/online)"
-        if ((${connected} == 1)); then
-            echo 'true'
-        else
-            echo 'false'
-        fi
+        ((${connected} == 1))
     }
 
-    function get_battery_icon {
+    function print_battery_icon {
         let charge_percent="${1}"
-        if "$(is_adapted_connected)"; then
-            echo -n ''
-        elif ((${charge_percent} <= 10)); then
-            echo -n ''
+        if ((${charge_percent} <= 10)); then
+            echo -n '󰂃'
         elif ((${charge_percent} <= 20)); then
-            echo -n ''
+            echo -n '󰁻'
         elif ((${charge_percent} <= 30)); then
-            echo -n ''
+            echo -n '󰁼'
         elif ((${charge_percent} <= 40)); then
-            echo -n ''
+            echo -n '󰁽'
         elif ((${charge_percent} <= 50)); then
-            echo -n ''
+            echo -n '󰁾'
         elif ((${charge_percent} <= 60)); then
-            echo -n ''
+            echo -n '󰁿'
         elif ((${charge_percent} <= 70)); then
-            echo -n ''
+            echo -n '󰂀'
         elif ((${charge_percent} <= 80)); then
-            echo -n ''
+            echo -n '󰂁'
         elif ((${charge_percent} < 100)); then
-            echo -n ''
+            echo -n '󰂂'
         else
-            echo -n ''
+            echo -n '󰁹'
         fi
     }
 
     let cp="$(get_battery_percent)"
-    get_battery_icon "${cp}"
+    print_battery_icon "${cp}"
+    is_adapted_connected && echo -n '󱐋'
     printf '%3d%%\n' "${cp}"
 # Linux ends here
 else

scripts/dwmblocks-fcitx5

@@ -0,0 +1,12 @@
+#!/usr/bin/env zsh
+
+local ime_sym='？'
+case "$(fcitx5-remote -n)" in
+    'keyboard-us')
+        ime_sym='Ｅ'
+        ;;
+    'mozc')
+        ime_sym="和"
+        ;;
+esac
+printf '󰌌 %s' "${ime_sym}"

scripts/dwmblocks-mu4e

@@ -0,0 +1,3 @@
+#!/usr/bin/env zsh
+let message_count="$(mu find flag:unread AND maildir:/protonmail/Inbox 2>/dev/null | wc -l)"
+(( "${message_count}" > 0 )) && printf '  %s' "${message_count}"

scripts/dwmblocks-network

@@ -3,11 +3,11 @@
 if [[ "$(uname)" = 'Linux' ]]; then
     local active_networks="$(nmcli c s --active)"
     local output=''
-    [[ "${active_networks}" = *' wifi '* ]] && output="${output}直 "
-    [[ "${active_networks}" = *' ethernet '* ]] && output="${output}"
-    [[ "${active_networks}" = *' wireguard '* ]] && output="${output}嬨 "
-    (( ${#output} == 0 )) && output=''
-    bluetoothctl show | grep 'Powered: yes' >/dev/null && output="${output} "
+    [[ "${active_networks}" = *' wifi '* ]] && output="${output}󰖩 "
+    [[ "${active_networks}" = *' ethernet '* ]] && output="${output}󰈁"
+    [[ "${active_networks}" = *' wireguard '* ]] && output="${output}󰖂 "
+    (( ${#output} == 0 )) && output='󰈂'
+    bluetoothctl show | grep 'Powered: yes' >/dev/null && output="${output}  "
     printf '%s\n' "${output}"
 else
     echo "${0}: error: unknown os: \"$(uname)\"" >&2

scripts/dwmblocks-volume

@@ -3,12 +3,12 @@
 let volume="$(pamixer --get-volume)"
 local icon
 if [[ "$(pamixer --get-mute)" = "true" ]]; then
-    icon='ﱝ'
+    icon='󰸈'
 elif ((${volume} > 50)); then
-    icon='墳'
-elif ((${volume} > 0)); then
-    icon='奔'
+    icon='󰕾'
+elif ((${volume} >= 0)); then
+    icon='󰖀'
 else
-    icon='奄'
+    icon='？'
 fi
 printf '%s%3d%%\n' "${icon}" "${volume}"