ex8.tcl

很不错的tcl编程实例

# Copyright 1996


# Authors

# Lakshmi Sastry
# Computing and Information Systems Department
# Rutherford Appleton Laboratory, Chilton, Didcot. OX11 0QX
# [e-mail]

#                         and

# Venkat VSS Sastry
# Department of Applied Mathematics and Operational Research
# Cranfield University, RMCS Shrivenham, Swindon, SN6 8LA
# [e-mail]

# Permission to use, copy, modify, and distribute this
# software and its documentation for any purpose and without
# fee is hereby granted, provided that this copyright
# notice appears in all copies.
  
# The authors, RAL, RMCS Shrivenham, Cranfield University and AGOCG
# make no representations about the suitability of this
# software for any purpose.  It is provided "as is" without
# express or implied warranty. Likewise they accept no responsibility
# whatsoever for any public domain software modules used (which are
# hereby acknowledged) in this software 


# regsub - simple usage
#
set s {Distance: 25 km; Unit cost: 35 p Total Cost: XXX}
puts $tout "$s\n"
# replace the occurrence of the pattern by subspec
# newString contains Distance: 25 km; Unit cost: 35 p Total Cost: 325.46
#
regsub {XXX} $s 325.46 newString
puts $tout "$s\n"
#
# replace all numbers in newString by XXX
# cryptic contains 
#    Distance: XXX km; Unit cost: XXX p Total Cost: XXX.XXX
#
regsub -all {[0-9]+} $newString XXX cryptic
puts $tout "$XXX\n"
puts $tout "$cryptic\n"