xref: /titanic_41/usr/src/lib/libshell/common/scripts/cpvprint.sh (revision 35a5a3587fd94b666239c157d3722745250ccbd7)
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 2009 Sun Microsystems, Inc.  All rights reserved.
26# Use is subject to license terms.
27#
28
29#
30# cpvprint - compound variable pretty printer
31#
32
33# Solaris needs /usr/xpg6/bin:/usr/xpg4/bin because the tools in /usr/bin are not POSIX-conformant
34export PATH=/usr/xpg6/bin:/usr/xpg4/bin:/bin:/usr/bin
35
36# Make sure all math stuff runs in the "C" locale to avoid problems
37# with alternative # radix point representations (e.g. ',' instead of
38# '.' in de_DE.*-locales). This needs to be set _before_ any
39# floating-point constants are defined in this script).
40if [[ "${LC_ALL}" != "" ]] ; then
41    export \
42        LC_MONETARY="${LC_ALL}" \
43        LC_MESSAGES="${LC_ALL}" \
44        LC_COLLATE="${LC_ALL}" \
45        LC_CTYPE="${LC_ALL}"
46        unset LC_ALL
47fi
48export LC_NUMERIC=C
49
50function fatal_error
51{
52	print -u2 "${progname}: $*"
53	exit 1
54}
55
56function prettyprint_compoundvar
57{
58	nameref var=$1
59
60	# print tree
61	str="${ print -v var ; }"
62	# do some "pretty-printing" for human users (the output is still a
63	# valid compound variable value)
64	# (note: This does not scale well with large files)
65	str="${str//$'\t'typeset -l -E /$'\t'float }"
66	str="${str//$'\t'typeset -l -i /$'\t'integer }"
67	str="${str//$'\t'typeset -C /$'\t'compound }"
68	print -r -- "${str}"
69
70	return 0
71}
72
73function usage
74{
75	OPTIND=0
76	getopts -a "${progname}" "${cpvprint_usage}" OPT '-?'
77	exit 2
78}
79
80# HTML constants
81compound -r hc=(
82	compound -r doctype=(
83		compound -r xhtml=(
84			typeset -r transitional=$'<!DOCTYPE html\n\tPUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"\n\t"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">\n'
85		)
86	)
87	compound -r namespace=(
88		typeset -r xhtml=$'http://www.w3.org/1999/xhtml'
89	)
90	typeset -r xml_head=$'<?xml version="1.0" encoding="UTF-8"?>\n'
91)
92
93# main
94builtin basename
95
96set -o noglob
97set -o errexit
98set -o nounset
99
100# tree variable
101compound tree
102
103typeset progname="${ basename "${0}" ; }"
104
105typeset -r cpvprint_usage=$'+
106[-?\n@(#)\$Id: cpvprint (Roland Mainz) 2009-06-15 \$\n]
107[-author?Roland Mainz <roland.mainz@nrubsig.org>]
108[+NAME?cpvprint - render compound variable trees in various formats]
109[+DESCRIPTION?\bcpvprint\b is converter which reads a ksh compound
110	variable and prints it on a different format. Supported
111	formats are \'default\', \'altdefault\',
112	\'tree\', \'alttree\',
113	\'pretty\', \'pretty.html\', \'list\' and \'fulllist\']
114
115format [ arguments ]
116
117[+SEE ALSO?\bksh93\b(1), \bcpvlint\b(1)]
118'
119
120while getopts -a "${progname}" "${cpvprint_usage}" OPT ; do
121#	printmsg "## OPT=|${OPT}|, OPTARG=|${OPTARG}|"
122	case ${OPT} in
123		*) usage ;;
124	esac
125done
126shift $((OPTIND-1))
127
128# prechecks
129(( $# > 0 )) || usage
130
131printformat="$1"
132shift
133
134# read variable
135case $# in
136	0)
137		read -C tree || fatal_error $"Read error."
138		;;
139	1)
140		integer fd
141
142		redirect {fd}<> "$1" || fatal_error $"Cannot open file."
143		read -u${fd} -C tree || fatal_error $"Read error."
144		redirect {fd}<&- || fatal_error $"Close error."
145		;;
146	2)
147		print -u2 -f $"%s: Unsupported number of arguments.\n" "$0"
148		exit 1
149		;;
150esac
151
152# print variable
153case ${printformat} in
154	'default' | 'tree')
155		print -v tree
156		;;
157	'altdefault' | 'alttree')
158		print -C tree
159		;;
160	'pretty')
161		# print variable tree (same as $ print -v filetree # except that it "looks better")
162		prettyprint_compoundvar tree
163		;;
164	'pretty.html')
165		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' \
166			"${hc.xml_head}" \
167			"${hc.doctype.xhtml.transitional}" \
168			"${hc.namespace.xhtml}" \
169			"ksh Compound Variable Pretty Printer (cpvprint)" \
170			"" \
171			"$(prettyprint_compoundvar tree)" | iconv -f "UTF-8" - -
172		;;
173	'list')
174		set | egrep '^tree.' | sed 's/^tree\.//' | egrep -v '^[[:alnum:]]+(\.([[:alnum:]\.]+)(\[.*\])*)*=\('
175		;;
176	'fulllist')
177		set | egrep "^tree."
178		;;
179	*)
180		fatal_error $"Unsupported format."
181		;;
182esac
183
184exit 0
185# EOF.
186