--- /dev/null
+/* See LICENSE file for copyright and license details. */
+
+/* interval between updates (in ms) */
+const unsigned int interval = 30*1000;
+
+/* text to show if no value can be retrieved */
+static const char unknown_str[] = "n/a";
+
+/* maximum output string length */
+#define MAXLEN 2048
+
+/*
+ * function description argument (example)
+ *
+ * battery_perc battery percentage battery name (BAT0)
+ * NULL on OpenBSD/FreeBSD
+ * battery_state battery charging state battery name (BAT0)
+ * NULL on OpenBSD/FreeBSD
+ * battery_remaining battery remaining HH:MM battery name (BAT0)
+ * NULL on OpenBSD/FreeBSD
+ * cpu_perc cpu usage in percent NULL
+ * cpu_freq cpu frequency in MHz NULL
+ * datetime date and time format string (%F %T)
+ * disk_free free disk space in GB mountpoint path (/)
+ * disk_perc disk usage in percent mountpoint path (/)
+ * disk_total total disk space in GB mountpoint path (/")
+ * disk_used used disk space in GB mountpoint path (/)
+ * entropy available entropy NULL
+ * gid GID of current user NULL
+ * hostname hostname NULL
+ * ipv4 IPv4 address interface name (eth0)
+ * ipv6 IPv6 address interface name (eth0)
+ * kernel_release `uname -r` NULL
+ * keyboard_indicators caps/num lock indicators format string (c?n?)
+ * see keyboard_indicators.c
+ * keymap layout (variant) of current NULL
+ * keymap
+ * load_avg load average NULL
+ * netspeed_rx receive network speed interface name (wlan0)
+ * netspeed_tx transfer network speed interface name (wlan0)
+ * num_files number of files in a directory path
+ * (/home/foo/Inbox/cur)
+ * ram_free free memory in GB NULL
+ * ram_perc memory usage in percent NULL
+ * ram_total total memory size in GB NULL
+ * ram_used used memory in GB NULL
+ * run_command custom shell command command (echo foo)
+ * swap_free free swap in GB NULL
+ * swap_perc swap usage in percent NULL
+ * swap_total total swap size in GB NULL
+ * swap_used used swap in GB NULL
+ * temp temperature in degree celsius sensor file
+ * (/sys/class/thermal/...)
+ * NULL on OpenBSD
+ * thermal zone on FreeBSD
+ * (tz0, tz1, etc.)
+ * uid UID of current user NULL
+ * uptime system uptime NULL
+ * username username of current user NULL
+ * vol_perc OSS/ALSA volume in percent mixer file (/dev/mixer)
+ * wifi_perc WiFi signal in percent interface name (wlan0)
+ * wifi_essid WiFi ESSID interface name (wlan0)
+ */
+static const struct arg args[] = {
+ /* function format argument */
+ { num_files, "✉ %s | ",
+ "/home/mrl/.local/share/offlineimap/mail/INBOX/new" },
+ { keymap, "%s | ", NULL },
+ { ipv4, "E %s | ", "enp0s31f6" },
+ { wifi_essid, "W %s ", "wlp1s0" },
+ { ipv4, "(%s) | ", "wlp1s0" },
+ { battery_perc, "⚡%s%%", "BAT0"},
+ { battery_state, "(%s) | ", "BAT0"},
+ { disk_free, "%s/", "/" },
+ { disk_total, "%s | ", "/" },
+ { datetime, "%s", "%Y-%m-%d %H:%M" },
+};