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=$__val"
45 _jshn_append "KEYS_${table}" "$var"
51 eval "$__dest=\"\$$__var\""
57 eval "$__var=\"\$__val\""
65 _json_get_var _seq "$_var"
66 _seq="$((${_seq:-0} + 1))"
67 _json_set_var "$_var" "$_seq"
68 [ -n "$_dest" ] && _set_var "$_dest" "$_seq"
75 _json_get_var cur JSON_CUR
76 _jshn_append JSON_STACK "$cur"
77 _json_set_var JSON_CUR "$new_cur"
86 [ -n "$cur" ] || _json_get_var cur JSON_CUR
88 if [ "${cur%%[0-9]*}" = "JSON_ARRAY" ]; then
89 _json_inc "SEQ_$cur" var
91 local name="${var//[^a-zA-Z0-9_]/_}"
92 [[ "$name" == "$var" ]] || _json_export "NAME_${cur}_${name}" "$var"
96 _json_export "${cur}_$var" "$val"
97 _json_export "TYPE_${cur}_$var" "$type"
98 _jshn_append "JSON_UNSET" "${cur}_$var"
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"
117 _jshn_append "JSON_UNSET" "$table"
119 _json_get_var new_cur JSON_CUR
120 _json_add_generic "$type" "$1" "$new_cur" "$cur"
123 _json_close_table() {
124 local stack new_stack
126 _json_get_var stack JSON_STACK
127 _json_set_var JSON_CUR "${stack##* }"
128 new_stack="${stack% *}"
129 [[ "$stack" == "$new_stack" ]] && new_stack=
130 _json_set_var JSON_STACK "$new_stack"
133 json_set_namespace() {
137 [ -n "$_old" ] && _set_var "$_old" "$JSON_PREFIX"
144 _json_get_var unset JSON_UNSET
145 for tmp in $unset JSON_VAR; do
147 ${JSON_PREFIX}UP_$tmp \
148 ${JSON_PREFIX}KEYS_$tmp \
149 ${JSON_PREFIX}SEQ_$tmp \
150 ${JSON_PREFIX}TYPE_$tmp \
151 ${JSON_PREFIX}NAME_$tmp \
156 ${JSON_PREFIX}JSON_SEQ \
157 ${JSON_PREFIX}JSON_STACK \
158 ${JSON_PREFIX}JSON_CUR \
159 ${JSON_PREFIX}JSON_UNSET
165 ${JSON_PREFIX}JSON_SEQ=0 \
166 ${JSON_PREFIX}JSON_STACK= \
167 ${JSON_PREFIX}JSON_CUR="JSON_VAR" \
168 ${JSON_PREFIX}JSON_UNSET="" \
169 ${JSON_PREFIX}KEYS_JSON_VAR= \
170 ${JSON_PREFIX}TYPE_JSON_VAR=
174 _json_add_table "$1" object TABLE
177 json_close_object() {
182 _json_add_table "$1" array ARRAY
190 _json_add_generic string "$1" "$2"
194 _json_add_generic int "$1" "$2"
198 _json_add_generic boolean "$1" "$2"
202 _json_add_generic double "$1" "$2"
205 # functions read access to json variables
212 jshn "$@" ${JSON_PREFIX:+-p "$JSON_PREFIX"} -w
219 _json_get_var __cur JSON_CUR
220 local __var="${JSON_PREFIX}TYPE_${__cur}_${2//[^a-zA-Z0-9_]/_}"
221 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
229 json_get_var _tbl_cur "$2"
231 _json_get_var _tbl_cur JSON_CUR
233 local __var="${JSON_PREFIX}KEYS_${_tbl_cur}"
234 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
239 local _v_keys _v_val _select=
247 json_get_keys _v_keys
249 while [ "$#" -gt 0 ]; do
250 json_get_var _v_val "$1"
251 __jshn_raw_append "$_v_dest" "$_v_val"
254 [ -n "$_select" ] && json_select ..
263 _json_get_var __cur JSON_CUR
264 local __var="${JSON_PREFIX}${__cur}_${2//[^a-zA-Z0-9_]/_}"
265 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
269 while [ "$#" -gt 0 ]; do
270 local _var="$1"; shift
271 json_get_var "$_var" "$_var"
281 _json_set_var JSON_CUR "JSON_VAR"
284 [[ "$1" == ".." ]] && {
285 _json_get_var cur JSON_CUR
286 _json_get_var cur "UP_$cur"
287 _json_set_var JSON_CUR "$cur"
290 json_get_type type "$target"
293 json_get_var cur "$target"
294 _json_set_var JSON_CUR "$cur"
297 echo "WARNING: Variable '$target' does not exist or is not an array/object"
306 json_get_type type "$1"