--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Demo/scripts/lpwatch.py	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,110 @@
+#! /usr/bin/env python
+
+# Watch line printer queue(s).
+# Intended for BSD 4.3 lpq.
+
+import posix
+import sys
+import time
+import string
+
+DEF_PRINTER = 'psc'
+DEF_DELAY = 10
+
+def main():
+    delay = DEF_DELAY # XXX Use getopt() later
+    try:
+        thisuser = posix.environ['LOGNAME']
+    except:
+        thisuser = posix.environ['USER']
+    printers = sys.argv[1:]
+    if printers:
+        # Strip '-P' from printer names just in case
+        # the user specified it...
+        for i in range(len(printers)):
+            if printers[i][:2] == '-P':
+                printers[i] = printers[i][2:]
+    else:
+        if posix.environ.has_key('PRINTER'):
+            printers = [posix.environ['PRINTER']]
+        else:
+            printers = [DEF_PRINTER]
+    #
+    clearhome = posix.popen('clear', 'r').read()
+    #
+    while 1:
+        text = clearhome
+        for name in printers:
+            text = text + makestatus(name, thisuser) + '\n'
+        print text
+        time.sleep(delay)
+
+def makestatus(name, thisuser):
+    pipe = posix.popen('lpq -P' + name + ' 2>&1', 'r')
+    lines = []
+    users = {}
+    aheadbytes = 0
+    aheadjobs = 0
+    userseen = 0
+    totalbytes = 0
+    totaljobs = 0
+    while 1:
+        line = pipe.readline()
+        if not line: break
+        fields = string.split(line)
+        n = len(fields)
+        if len(fields) >= 6 and fields[n-1] == 'bytes':
+            rank = fields[0]
+            user = fields[1]
+            job = fields[2]
+            files = fields[3:-2]
+            bytes = eval(fields[n-2])
+            if user == thisuser:
+                userseen = 1
+            elif not userseen:
+                aheadbytes = aheadbytes + bytes
+                aheadjobs = aheadjobs + 1
+            totalbytes = totalbytes + bytes
+            totaljobs = totaljobs + 1
+            if users.has_key(user):
+                ujobs, ubytes = users[user]
+            else:
+                ujobs, ubytes = 0, 0
+            ujobs = ujobs + 1
+            ubytes = ubytes + bytes
+            users[user] = ujobs, ubytes
+        else:
+            if fields and fields[0] <> 'Rank':
+                line = string.strip(line)
+                if line == 'no entries':
+                    line = name + ': idle'
+                elif line[-22:] == ' is ready and printing':
+                    line = name
+                lines.append(line)
+    #
+    if totaljobs:
+        line = '%d K' % ((totalbytes+1023)//1024)
+        if totaljobs <> len(users):
+            line = line + ' (%d jobs)' % totaljobs
+        if len(users) == 1:
+            line = line + ' for %s' % (users.keys()[0],)
+        else:
+            line = line + ' for %d users' % len(users)
+            if userseen:
+                if aheadjobs == 0:
+                    line =  line + ' (%s first)' % thisuser
+                else:
+                    line = line + ' (%d K before %s)' % (
+                                   (aheadbytes+1023)//1024, thisuser)
+        lines.append(line)
+    #
+    sts = pipe.close()
+    if sts:
+        lines.append('lpq exit status %r' % (sts,))
+    return string.joinfields(lines, ': ')
+
+if __name__ == "__main__":
+    try:
+        main()
+    except KeyboardInterrupt:
+        pass