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"