1 # AWK file for parsing uci specification files
3 # Copyright (C) 2006 by Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 # general: unfortunately, the development was done using gawk providing
21 # a different match() functions than e.g. mawk on debian systems
22 # - therefore, the script was changed to run on most awk's
23 # - even things like [:space:] are not used
25 # - script parses the config section definition contained in one
28 # * section - contains the current config section name
29 # * var - contains the name of the current config option
30 # * type - contains the type of the current config option
31 # * required - contains the requirements of the current config option
32 # * optional - contains the optional scope of the current config option
33 # * vars[] - array, contains the name of all config options valid within
34 # a certain config section, format: csv
36 # XXX todo: more than one config option with the same in different section
37 # will clash for the following tables
38 # * types[] - contains the type of a config option
39 # * reqs[] - contains the requirements of a config option
40 # * opts[] - contains the optional scope of a config option
45 simple_types =
"int|ip|netmask|string|wep|hostname|mac|port|ports|wpapsk"
48 # function print_specification
49 # - prints all information about the created tables containing the
51 function print_specification
() {
52 for (section in vars
) {
53 printf("%s\n",section
);
54 split(vars
[section
],arr
,",")
56 printf("\t%s[%s]",arr
[idx
],types
[section
"_" arr
[idx
]]);
57 if (length(reqs
[section
"_" arr
[idx
]])) {
58 if (reqs
[section
"_" arr
[idx
]]==
1) {
61 printf(", req(%s)", reqs
[section
"_" arr
[idx
]]);
64 if (length(opts
[section
"_" arr
[idx
]])) {
65 printf(", opt(%s)", opts
[section
"_" arr
[idx
]]);
73 function reset_option
() {
74 # just set global variables parsed on one line back to defaults
82 function store_option
() {
83 # save all information about a config option parsed from the spec file
84 # to the relevant tables for future use
86 # first check minimum requirements for storing information
87 if (!
length(section
)) {
88 print STDERR
"line " NR ": section definition missing"
92 print STDERR
"line " NR ": invalid config option name"
96 print STDERR
"line " NR ": invalid config option type"
100 # add config options to the names of options available for this
102 if (exists
[section
]!=1) {
103 section_names
[section_count
] = section
108 vars
[section
] = vars
[section
] "," var
111 # save the type, the requirements and the optional scope of the
113 types
[section
"_" var
] = type
114 reqs
[section
"_" var
] = required
115 opts
[section
"_" var
] = optional
118 /^declare
-x
|^export
/ {
119 sub(/^declare
-x
/,"")
122 val=
substr(arr
[2],2,length(arr
[2])-2)
123 ENVIRON[arr
[1]] = val
127 # main parsing function
128 # this is done in one function block to allow multiple semicolon separated
129 # definitions on one line
131 # replace leading/trailing white space
132 gsub("^[ \t\n]+","");
133 gsub("[ \t\n]+$","");
135 # comments are removed
136 # XXX todo: check for quoted comments??
137 if (match($
0,/[^
#]*/)) {
138 rest=
substr($
0,RSTART,RLENGTH)
143 # match the config section "<section> {"
144 if (match(rest
,/^
[^
\t\n{]+[ \t\n]*\
{/)) {
145 match(rest
,/^
[^
\t\n{]+/)
146 section =
substr(rest
,RSTART,RLENGTH)
147 rest=
substr($
0,RSTART+RLENGTH);
148 match(rest
,/[ \t\n]*\
{/)
149 rest=
substr(rest
,RSTART+RLENGTH)
150 # check for array indication
151 if (match(section
,/\
[[ \t\n]*\
]/)) {
152 section=
substr(section
,1,RSTART-1)
153 multiple
[section
] =
1
155 multiple
[section
] =
0
161 # parse the remaing line as long as there is something to parse
162 while (rest ~
"[^ \t\n}]+") {
165 # get option name and option type
166 # first, check for "simple" datatype definitions
167 if (match(rest
,"[^: \t\n]+[ \t\n]*:[ \t\n]*(" \
169 match(rest
,"[^: \t\n]+")
170 var=
substr(rest
,RSTART,RLENGTH)
171 rest=
substr(rest
,RSTART+RLENGTH)
172 match(rest
,"[ \t\n]*:[ \t\n]*")
173 rest=
substr(rest
,RSTART+RLENGTH)
174 match(rest
,"(" simple_types
")")
175 type=
substr(rest
,RSTART,RLENGTH)
176 rest =
substr(rest
,RSTART+RLENGTH)
178 # next, check for enum definitions
179 } else if (match(rest
,/[^
: \t\n]+[ \t\n]*:[ \t\n]*enum\
([^\
)]+\
)/ )) {
180 match(rest
,"[^: \t\n]+")
181 var=
substr(rest
,RSTART,RLENGTH)
182 rest=
substr(rest
,RSTART+RLENGTH)
183 match(rest
,/[ \t\n]*:[ \t\n]*enum\
(/)
184 rest=
substr(rest
,RSTART+RLENGTH)
186 type=
"enum," substr(rest
,RSTART,RLENGTH)
187 rest =
substr(rest
,RSTART+RLENGTH+1)
191 # after the name and the type,
192 # get the option requirements/scope
193 if (match(rest
,/[^
,]*,[ \t\n]*required\
[[^
]]+\
]/)) {
195 save=
substr(rest
,RSTART,RLENGTH)
196 rest=
substr(rest
,RSTART+RLENGTH)
197 match(rest
,/,[ \t\n]*required\
[/);
198 rest=
substr(rest
,RSTART+RLENGTH)
199 match(rest
,/[^
]]+\
]/)
200 required=
substr(rest
,RSTART,RLENGTH-1)
201 save=save
substr(rest
,RSTART+RLENGTH)
204 } else if (match(rest
,/[^
,]*,[ \t\n]*required
/)) {
206 save=
substr(rest
,RSTART,RLENGTH)
207 rest=
substr(rest
,RSTART+RLENGTH)
208 match(rest
,",[ \t\n]*required");
209 rest=
substr(rest
,RSTART+RLENGTH)
211 save=save
substr(rest
,RSTART+RLENGTH)
215 if (match(rest
,/[^
,]*,[ \t\n]*optional\
[[^
]]+\
]/)) {
217 save=
substr(rest
,RSTART,RLENGTH)
218 rest=
substr(rest
,RSTART+RLENGTH)
219 match(rest
,/,[ \t\n]*optional\
[/);
220 rest=
substr(rest
,RSTART+RLENGTH)
221 match(rest
,/[^
]]+\
]/)
222 optional=
substr(rest
,RSTART,RLENGTH-1)
223 save=save
substr(rest
,RSTART+RLENGTH)
228 # if the remaining line contains a semicolon, complete the
229 # specification of the config options
230 if (match(rest
, "^[ \t\n]*;(.*)")) {
231 match(rest
,"^[ \t\n]*;")
232 rest=
substr(rest
,RSTART+RLENGTH)
238 # if nothing matched on this line, clear the rest
244 # after the line is pared, store the configuration option in the
245 # table if any has been defined
250 # close the section if the line contained a closing section bracket,
251 # XXX todo: check if this has to be done more intelligent
This page took 0.054643 seconds and 5 git commands to generate.