xref: /titanic_41/usr/src/lib/libshell/common/scripts/cpvprint.sh (revision b6805bf78d2bbbeeaea8909a05623587b42d58b3) 
1#!/usr/bin/ksh93
2
3#
4# CDDL HEADER START
5#
6# The contents of this file are subject to the terms of the
7# Common Development and Distribution License (the "License").
8# You may not use this file except in compliance with the License.
9#
10# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
11# or http://www.opensolaris.org/os/licensing.
12# See the License for the specific language governing permissions
13# and limitations under the License.
14#
15# When distributing Covered Code, include this CDDL HEADER in each
16# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
17# If applicable, add the following below this CDDL HEADER, with the
18# fields enclosed by brackets "[]" replaced with your own identifying
19# information: Portions Copyright [yyyy] [name of copyright owner]
20#
21# CDDL HEADER END
22#
23
24#
25# Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
26#
27
28#
29# cpvprint - compound variable pretty printer
30#
31
32# Solaris needs /usr/xpg6/bin:/usr/xpg4/bin because the tools in /usr/bin are not POSIX-conformant
33export PATH=/usr/xpg6/bin:/usr/xpg4/bin:/bin:/usr/bin
34
35# Make sure all math stuff runs in the "C" locale to avoid problems
36# with alternative # radix point representations (e.g. ',' instead of
37# '.' in de_DE.*-locales). This needs to be set _before_ any
38# floating-point constants are defined in this script).
39if [[ "${LC_ALL}" != "" ]] ; then
40    export \
41        LC_MONETARY="${LC_ALL}" \
42        LC_MESSAGES="${LC_ALL}" \
43        LC_COLLATE="${LC_ALL}" \
44        LC_CTYPE="${LC_ALL}"
45        unset LC_ALL
46fi
47export LC_NUMERIC=C
48
49function fatal_error
50{
51	print -u2 "${progname}: $*"
52	exit 1
53}
54
55function prettyprint_compoundvar
56{
57	nameref var=$1
58
59	# print tree
60	str="${ print -v var ; }"
61	# do some "pretty-printing" for human users (the output is still a
62	# valid compound variable value)
63	# (note: This does not scale well with large files)
64	str="${str//$'\t'typeset -l -E /$'\t'float }"
65	str="${str//$'\t'typeset -l -i /$'\t'integer }"
66	str="${str//$'\t'typeset -C /$'\t'compound }"
67	print -r -- "${str}"
68
69	return 0
70}
71
72function usage
73{
74	OPTIND=0
75	getopts -a "${progname}" "${cpvprint_usage}" OPT '-?'
76	exit 2
77}
78
79# HTML constants
80compound -r hc=(
81	compound -r doctype=(
82		compound -r xhtml=(
83			typeset -r transitional=$'<!DOCTYPE html\n\tPUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"\n\t"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">\n'
84		)
85	)
86	compound -r namespace=(
87		typeset -r xhtml=$'http://www.w3.org/1999/xhtml'
88	)
89	typeset -r xml_head=$'<?xml version="1.0" encoding="UTF-8"?>\n'
90)
91
92# main
93builtin basename
94
95set -o noglob
96set -o errexit
97set -o nounset
98
99# tree variable
100compound tree
101
102typeset progname="${ basename "${0}" ; }"
103
104typeset -r cpvprint_usage=$'+
105[-?\n@(#)\$Id: cpvprint (Roland Mainz) 2009-06-15 \$\n]
106[-author?Roland Mainz <roland.mainz@nrubsig.org>]
107[+NAME?cpvprint - render compound variable trees in various formats]
108[+DESCRIPTION?\bcpvprint\b is converter which reads a ksh compound
109	variable and prints it on a different format. Supported
110	formats are \'default\', \'altdefault\',
111	\'tree\', \'alttree\',
112	\'pretty\', \'pretty.html\', \'list\' and \'fulllist\']
113
114format [ arguments ]
115
116[+SEE ALSO?\bksh93\b(1), \bcpvlint\b(1)]
117'
118
119while getopts -a "${progname}" "${cpvprint_usage}" OPT ; do
120#	printmsg "## OPT=|${OPT}|, OPTARG=|${OPTARG}|"
121	case ${OPT} in
122		*) usage ;;
123	esac
124done
125shift $((OPTIND-1))
126
127# prechecks
128(( $# > 0 )) || usage
129
130printformat="$1"
131shift
132
133# read variable
134case $# in
135	0)
136		read -C tree || fatal_error $"Read error."
137		;;
138	1)
139		integer fd
140
141		redirect {fd}<> "$1" || fatal_error $"Cannot open file."
142		read -u${fd} -C tree || fatal_error $"Read error."
143		redirect {fd}<&- || fatal_error $"Close error."
144		;;
145	2)
146		print -u2 -f $"%s: Unsupported number of arguments.\n" "$0"
147		exit 1
148		;;
149esac
150
151# print variable
152case ${printformat} in
153	'default' | 'tree')
154		print -v tree
155		;;
156	'altdefault' | 'alttree')
157		print -C tree
158		;;
159	'pretty')
160		# print variable tree (same as $ print -v filetree # except that it "looks better")
161		prettyprint_compoundvar tree
162		;;
163	'pretty.html')
164		printf '%s%s<html xmlns="%s" xml:lang="en" lang="en">\n<head><meta name="generator" content="%H" /><title>%H</title></head>\n<body><pre>%H\n</pre></body></html>\n' \
165			"${hc.xml_head}" \
166			"${hc.doctype.xhtml.transitional}" \
167			"${hc.namespace.xhtml}" \
168			"ksh Compound Variable Pretty Printer (cpvprint)" \
169			"" \
170			"$(prettyprint_compoundvar tree)" | iconv -f "UTF-8" - -
171		;;
172	'list')
173		set | egrep '^tree.' | sed 's/^tree\.//' | egrep -v '^[[:alnum:]]+(\.([[:alnum:]\.]+)(\[.*\])*)*=\('
174		;;
175	'fulllist')
176		set | egrep "^tree."
177		;;
178	*)
179		fatal_error $"Unsupported format."
180		;;
181esac
182
183exit 0
184# EOF.
185