[PATCH] New, extended completion for lsusb

["Jörg Sommer" <joerg@alea.gnuu.de>]

---
 Completion/Linux/Command/_lsusb |   78 ++++++++++++++++++++++++++++-----------
 1 files changed, 56 insertions(+), 22 deletions(-)

diff --git a/Completion/Linux/Command/_lsusb b/Completion/Linux/Command/_lsusb
index 37701ac..3388f33 100644
--- a/Completion/Linux/Command/_lsusb
+++ b/Completion/Linux/Command/_lsusb
@@ -1,31 +1,65 @@
 #compdef lsusb
 
-local context state line usbidsline vendorid pair
+local context state line
 typeset -A opt_args
 
 _arguments \
   '(-v --verbose)'{-v,--verbose}'[be verbose]' \
-  '-s:bus and/or devnum to show:' \
-  '-d:vendor and product to show:->vendorproduct' \
-  '-D:device to show:_files' \
+  '-s[Narrow to some devices]:bus and/or devnum to show:->bus_devnum' \
+  '-d:vendor and product to show:->vendor_product' \
+  '-D:device to show:_files -g "*(%)"' \
   '-t[dump the physical USB device hierarchy as a tree]' \
-  '(-V --version)'{-V,--version}'[print version info and exit]' && return 0
+  '(-)'{-V,--version}'[print version info and exit]' && return 0
 
-  if [[ ${+_lsusb_vendors} -eq 0 ]]; then
-    typeset -A _lsusb_vendors _lsusb_devices
-  while IFS="" read usbidsline
-  do
-    case "$usbidsline" in
-      ((#b)([0-9a-f]##) ##(*))
-        vendorid="$match[1]"
-        _lsusb_vendors[$vendorid]="$match[2]"
-      ;;
-      (	(#b)([0-9a-f]##) ##(*)))
-        pair="$vendorid:$match[1]"
-        _lsusb_devices[${pair}]="$match[2]"
-      ;;
-    esac
-  done < <(zcat /var/lib/usbutils/usb.ids)
-fi
+case "$state" in
+  (bus_devnum)
+    local B bus D device I id descr bus_dev
+    _call_program usb_devices lsusb \
+      | while IFS=" " read -r  B bus D device I id descr
+    do
+        if [[ $B$D$I != BusDeviceID ]]
+        then
+            echo "Internal error: Unknown lsusb output line:" \
+              "$B $bus $D $device $I $id $descr" >&2
+        else
+            bus_dev+=(${(M)bus%%[1-9]*}\\:${${(M)device%%[1-9]*}%:}:$descr)
+        fi
+    done
+    _describe -t usb_addresses 'usb device address' bus_dev
+    ;;
 
-compadd -k _lsusb_devices
+  (vendor_product)
+    if ! (( ${+_cache_lsusb_devices} ))
+    then
+        local id name last_vendor_id
+        while IFS=" " read -r id name
+        do
+            case "$id" in
+              (*\#*|)
+                ;;
+              ('		'*)
+                # interface interface_name
+                ;;
+              ('	'*)
+                # device_id device_name
+                _cache_lsusb_devices+=($last_vendor_id\\:${id#	}:$name)
+                ;;
+              ([!0-9a-f]*)
+                # Here start other entries like classes (C) and languages (L)
+                break
+                ;;
+              (*)
+                last_vendor_id=$id
+                ;;
+            esac
+        done < /var/lib/usbutils/usb.ids
+    fi
+
+    _describe -t usb_device_ids 'usb device ids' _cache_lsusb_devices
+    ;;
+
+  (*)
+    echo "Internal error: Unknown state: $state" >&2
+    return 1
+    ;;
+esac
-- 
1.6.2.rc0