1 # functions for parsing and generating json
6 eval "$___dest=\"\$${JSON_PREFIX}$___var\""
12 eval "${JSON_PREFIX}$___var=\"\$___val\""
20 eval "export -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
30 _json_get_var __old_val
"$__var"
31 __value
="${__old_val:+$__old_val$__sep}$__value"
32 _json_set_var
"$__var" "$__value"
36 local __var
="${JSON_PREFIX}$1"
39 export -- "$__var=$__val"
40 _jshn_append
"JSON_UNSET" "$__var"
46 _jshn_append
"KEYS_${table}" "$var"
52 eval "$__dest=\"\$$__var\""
58 eval "$__var=\"\$__val\""
66 _json_get_var _seq
"$_var"
67 _seq
="$((${_seq:-0} + 1))"
68 _json_set_var
"$_var" "$_seq"
69 [ -n "$_dest" ] && _set_var
"$_dest" "$_seq"
76 _json_get_var cur JSON_CUR
77 _jshn_append JSON_STACK
"$cur"
78 _json_set_var JSON_CUR
"$new_cur"
87 [ -n "$cur" ] || _json_get_var cur JSON_CUR
89 if [ "${cur%%[0-9]*}" = "JSON_ARRAY" ]; then
90 _json_inc
"SEQ_$cur" var
92 local name
="${var//[^a-zA-Z0-9_]/_}"
93 [[ "$name" == "$var" ]] || _json_export
"NAME_${cur}_${name}" "$var"
97 _json_export
"${cur}_$var" "$val"
98 _json_export
"TYPE_${cur}_$var" "$type"
99 _json_add_key
"$cur" "$var"
109 _json_get_var cur JSON_CUR
110 _json_inc JSON_SEQ
seq
112 local table
="JSON_$itype$seq"
113 _json_export
"UP_$table" "$cur"
114 _json_export
"KEYS_$table" ""
115 [ "$itype" = "ARRAY" ] && _json_export
"SEQ_$table" ""
116 _json_stack_push
"$table"
118 _json_get_var new_cur JSON_CUR
119 _json_add_generic
"$type" "$1" "$new_cur" "$cur"
122 _json_close_table
() {
123 local stack new_stack
125 _json_get_var stack JSON_STACK
126 _json_set_var JSON_CUR
"${stack##* }"
127 new_stack
="${stack% *}"
128 [[ "$stack" == "$new_stack" ]] && new_stack
=
129 _json_set_var JSON_STACK
"$new_stack"
132 json_set_namespace
() {
136 [ -n "$_old" ] && _set_var
"$_old" "$JSON_PREFIX"
143 _json_get_var
unset JSON_UNSET
144 [ -n "$unset" ] && eval "unset $unset"
147 ${JSON_PREFIX}JSON_SEQ \
148 ${JSON_PREFIX}JSON_STACK \
149 ${JSON_PREFIX}JSON_CUR \
150 ${JSON_PREFIX}JSON_UNSET \
151 ${JSON_PREFIX}KEYS_JSON_VAR \
152 ${JSON_PREFIX}TYPE_JSON_VAR
158 ${JSON_PREFIX}JSON_SEQ
=0 \
159 ${JSON_PREFIX}JSON_STACK
= \
160 ${JSON_PREFIX}JSON_CUR
="JSON_VAR" \
161 ${JSON_PREFIX}JSON_UNSET
="" \
162 ${JSON_PREFIX}KEYS_JSON_VAR
= \
163 ${JSON_PREFIX}TYPE_JSON_VAR
=
167 _json_add_table
"$1" object TABLE
170 json_close_object
() {
175 _json_add_table
"$1" array ARRAY
183 _json_add_generic string
"$1" "$2"
187 _json_add_generic int
"$1" "$2"
191 _json_add_generic boolean
"$1" "$2"
195 _json_add_generic double
"$1" "$2"
198 # functions read access to json variables
205 jshn
"$@" ${JSON_PREFIX:+-p "$JSON_PREFIX"} -w
212 _json_get_var __cur JSON_CUR
213 local __var
="${JSON_PREFIX}TYPE_${__cur}_${2//[^a-zA-Z0-9_]/_}"
214 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
221 json_get_var _tbl_cur
"$2"
222 local __var
="${JSON_PREFIX}KEYS_${_tbl_cur}"
223 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
231 json_get_keys _v_keys
"$2"
234 while [ "$#" -gt 0 ]; do
235 json_get_var _v_val
"$1"
236 __jshn_raw_append
"$_v_dest" "$_v_val"
246 _json_get_var __cur JSON_CUR
247 local __var
="${JSON_PREFIX}${__cur}_${2//[^a-zA-Z0-9_]/_}"
248 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
252 while [ "$#" -gt 0 ]; do
253 local _var
="$1"; shift
254 json_get_var
"$_var" "$_var"
264 _json_set_var JSON_CUR
"JSON_VAR"
267 [[ "$1" == ".." ]] && {
268 _json_get_var cur JSON_CUR
269 _json_get_var cur
"UP_$cur"
270 _json_set_var JSON_CUR
"$cur"
273 json_get_type
type "$target"
276 json_get_var cur
"$target"
277 _json_set_var JSON_CUR
"$cur"
280 echo "WARNING: Variable '$target' does not exist or is not an array/object"
289 json_get_type
type "$1"