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# Date: Thu, 5 Jun 2003 00:14:19 -0400 (EDT)

# From: Jose Nazario <jose@monkey.org>

# To: bug-gnu-utils@prep.ai.mit.edu, arnold@gnu.ai.mit.edu,

#    netbsd-bugs@netbsd.org

# Subject: bug in gawk/gsub() (not present in nawk)

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# 

# while playing with some tools in data massaging, i had to migrate from an

# openbsd/nawk system to a netbsd/gawk system. i found the folllowing

# behavior, which seems to be a bug.

# 

# the following gsub() pattern has a strange effect under gawk which is not

# visible in nawk (at least as compiled on openbsd). the intention is to

# take a string like "This Is a Title: My Title?" and turn it into a

# normalized string: "ThisIsaTitleMyTitle". to do this, i wrote the

# following gross gsub line in an awk script:

# 

# 	gsub(/[\ \"-\/\\:;\[\]\@\?\.\,\$]/, "", $2)

# 	print $2

# 

# in gawk, as found in netbsd-macppc/1.5.2, this will drop the first letter

# of every word. the resulting string will be "hissitleyitle", while in nawk

# as built on openbsd-3.3 this will get it correct.

# 

# any insights? the inconsistency with this relatively naive pattern seems a

# bit odd. (i would up installing nawk built from openbsd sources.)

# 

# thanks. sorry i didn't send a better bug report, netbsd folks, i'm not

# much of a netbsd user, and i dont have send-pr set up. yes, this is a

# slightly older version of netbsd and gawk:

# 

# $ uname -a

# NetBSD entropy 1.5.2 NetBSD 1.5.2 (GENERIC) #0: Sun Feb 10 02:00:04 EST

# 2002     jose@entropy:/usr/src/sys/arch/macppc/compile/GENERIC macppc

# $ awk --version

# GNU Awk 3.0.3

# Copyright (C) 1989, 1991-1997 Free Software Foundation.

# 

# 

# 

# thanks.

# 

# ___________________________

# jose nazario, ph.d.			jose@monkey.org

# 					http://monkey.org/~jose/

# 

# 

{

	gsub(/[\ \"-\/\\:;\[\]\@\?\.\,\$]/, "")

 	print

}