unif.awk revision 1.1.6.2
1 1.1.6.2 tls # $NetBSD: unif.awk,v 1.1.6.2 2014/08/20 00:05:14 tls Exp $ 2 1.1.6.2 tls 3 1.1.6.2 tls # Copyright (c) 2003 The NetBSD Foundation, Inc. 4 1.1.6.2 tls # All rights reserved. 5 1.1.6.2 tls # 6 1.1.6.2 tls # This code is derived from software contributed to The NetBSD Foundation 7 1.1.6.2 tls # by David Laight. 8 1.1.6.2 tls # 9 1.1.6.2 tls # Redistribution and use in source and binary forms, with or without 10 1.1.6.2 tls # modification, are permitted provided that the following conditions 11 1.1.6.2 tls # are met: 12 1.1.6.2 tls # 1. Redistributions of source code must retain the above copyright 13 1.1.6.2 tls # notice, this list of conditions and the following disclaimer. 14 1.1.6.2 tls # 2. Redistributions in binary form must reproduce the above copyright 15 1.1.6.2 tls # notice, this list of conditions and the following disclaimer in the 16 1.1.6.2 tls # documentation and/or other materials provided with the distribution. 17 1.1.6.2 tls # 18 1.1.6.2 tls # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 1.1.6.2 tls # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 1.1.6.2 tls # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 1.1.6.2 tls # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 1.1.6.2 tls # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 1.1.6.2 tls # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 1.1.6.2 tls # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 1.1.6.2 tls # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 1.1.6.2 tls # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 1.1.6.2 tls # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 1.1.6.2 tls # POSSIBILITY OF SUCH DAMAGE. 29 1.1.6.2 tls 30 1.1.6.2 tls # 'unif' lines of file 31 1.1.6.2 tls # 32 1.1.6.2 tls # usage: awk -f unif.awk -v defines=varlist file 33 1.1.6.2 tls # 34 1.1.6.2 tls # looks for blocks of the form: 35 1.1.6.2 tls # 36 1.1.6.2 tls # .if var [|| var] 37 1.1.6.2 tls # ... 38 1.1.6.2 tls # .else 39 1.1.6.2 tls # ... 40 1.1.6.2 tls # .endif 41 1.1.6.2 tls # 42 1.1.6.2 tls # and removes the unwanted lines 43 1.1.6.2 tls # There is some error detection... 44 1.1.6.2 tls 45 1.1.6.2 tls BEGIN { 46 1.1.6.2 tls split(defines, defns) 47 1.1.6.2 tls for (v in defns) 48 1.1.6.2 tls deflist[defns[v]] = 1 49 1.1.6.2 tls delete defns 50 1.1.6.2 tls nested = 0 51 1.1.6.2 tls skip = 0 52 1.1.6.2 tls } 53 1.1.6.2 tls 54 1.1.6.2 tls /^\.if/ { 55 1.1.6.2 tls nested++ 56 1.1.6.2 tls else_ok[nested] = 1 57 1.1.6.2 tls if (skip) 58 1.1.6.2 tls next 59 1.1.6.2 tls for (i = 2; i <= NF; i += 2) { 60 1.1.6.2 tls if ($i in deflist) 61 1.1.6.2 tls next 62 1.1.6.2 tls if ($(i+1) != "" && $(i+1) != "||") 63 1.1.6.2 tls exit 1 64 1.1.6.2 tls } 65 1.1.6.2 tls if (!skip) 66 1.1.6.2 tls skip = nested 67 1.1.6.2 tls next 68 1.1.6.2 tls } 69 1.1.6.2 tls 70 1.1.6.2 tls /^\.else/ { 71 1.1.6.2 tls if (!else_ok[nested]) 72 1.1.6.2 tls exit 1 73 1.1.6.2 tls else_ok[nested] = 0 74 1.1.6.2 tls if (skip == nested) 75 1.1.6.2 tls skip = 0 76 1.1.6.2 tls else if (!skip) 77 1.1.6.2 tls skip = nested 78 1.1.6.2 tls next 79 1.1.6.2 tls } 80 1.1.6.2 tls 81 1.1.6.2 tls /^\.endif/ { 82 1.1.6.2 tls if (nested == 0) 83 1.1.6.2 tls exit 1 84 1.1.6.2 tls if (skip == nested) 85 1.1.6.2 tls skip = 0 86 1.1.6.2 tls nested-- 87 1.1.6.2 tls next 88 1.1.6.2 tls } 89 1.1.6.2 tls 90 1.1.6.2 tls { 91 1.1.6.2 tls if (skip == 0) 92 1.1.6.2 tls print 93 1.1.6.2 tls } 94 1.1.6.2 tls 95 1.1.6.2 tls END { 96 1.1.6.2 tls if (nested != 0) 97 1.1.6.2 tls exit 1 98 1.1.6.2 tls } 99
Indexes created Thu Oct 02 14:10:14 GMT 2025