1 # functions for parsing and generating json
6 eval "$___dest=\"\$${JSON_PREFIX}$___var\""
12 eval "${JSON_PREFIX}$___var=\"\$___val\""
21 _json_get_var __old_val "$__var"
22 __value="${__old_val:+$__old_val$__sep}$__value"
23 _json_set_var "$__var" "$__value"
27 local __var="${JSON_PREFIX}$1"
30 export -- "$__var=$__val"
31 _jshn_append "JSON_UNSET" "$__var"
37 _jshn_append "KEYS_${table}" "$var"
43 eval "$__dest=\"\$$__var\""
49 eval "$__var=\"\$__val\""
57 _json_get_var seq "$_var"
58 seq="$((${seq:-0} + 1))"
59 _json_set_var "$_var" "$seq"
60 [ -n "$dest" ] && _set_var "$_dest" "$seq"
67 _json_get_var cur JSON_CUR
68 _jshn_append JSON_STACK "$cur"
69 _json_set_var JSON_CUR "$new_cur"
78 [ -n "$cur" ] || _json_get_var cur JSON_CUR
80 if [ "${cur%%[0-9]*}" = "JSON_ARRAY" ]; then
81 _json_inc "SEQ_$cur" var
83 local name="${var//[^a-zA-Z0-9_]/_}"
84 [[ "$name" == "$var" ]] || _json_export "NAME_${cur}_${name}" "$var"
88 _json_export "${cur}_$var" "$val"
89 _json_export "TYPE_${cur}_$var" "$type"
90 _json_add_key "$cur" "$var"
99 _json_get_var cur JSON_CUR
100 _json_inc JSON_SEQ seq
102 local table="JSON_$itype$seq"
103 _json_export "UP_$table" "$cur"
104 _json_export "KEYS_$table" ""
105 [ "$TYPE" = "ARRAY" ] && _json_export "KEYS_$table" ""
106 _json_stack_push "$table"
108 _json_get_var new_cur JSON_CUR
109 _json_add_generic object "$1" "$new_cur" "$cur"
112 _json_close_table() {
113 local stack new_stack
115 _json_get_var stack JSON_STACK
116 _json_set_var JSON_CUR "${stack##* }"
117 new_stack="${stack% *}"
118 [[ "$stack" == "$new_stack" ]] && new_stack=
119 _json_set_var JSON_STACK "$new_stack"
122 json_set_namespace() {
126 [ -n "$_old" ] && _set_var "$_old" "$JSON_PREFIX"
133 _json_get_var unset JSON_UNSET
134 [ -n "$unset" ] && eval "unset $unset"
137 ${JSON_PREFIX}JSON_SEQ \
138 ${JSON_PREFIX}JSON_STACK \
139 ${JSON_PREFIX}JSON_CUR \
140 ${JSON_PREFIX}JSON_UNSET \
141 ${JSON_PREFIX}KEYS_JSON_VAR \
142 ${JSON_PREFIX}TYPE_JSON_VAR
148 ${JSON_PREFIX}JSON_SEQ=0 \
149 ${JSON_PREFIX}JSON_STACK= \
150 ${JSON_PREFIX}JSON_CUR="JSON_VAR" \
151 ${JSON_PREFIX}JSON_UNSET="" \
152 ${JSON_PREFIX}KEYS_JSON_VAR= \
153 ${JSON_PREFIX}TYPE_JSON_VAR=
157 _json_add_table "$1" object TABLE
160 json_close_object() {
165 _json_add_table "$1" array ARRAY
173 _json_add_generic string "$1" "$2"
177 _json_add_generic int "$1" "$2"
181 _json_add_generic boolean "$1" "$2"
184 # functions read access to json variables
191 jshn "$@" ${JSON_PREFIX:+-p "$JSON_PREFIX"} -w
198 _json_get_var cur JSON_CUR
199 local var="${JSON_PREFIX}TYPE_${cur}_$2"
200 eval "export -- \"$dest=\${$var}\"; [ -n \"\${$var+x}\" ]"
207 _json_get_var __cur JSON_CUR
208 local __var="${JSON_PREFIX}${__cur}_${2//[^a-zA-Z0-9_]/_}"
209 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
213 while [ "$#" -gt 0 ]; do
214 local _var="$1"; shift
215 json_get_var "$_var" "$_var"
225 _json_set_var JSON_CUR "JSON_VAR"
228 [[ "$1" == ".." ]] && {
229 _json_get_var cur JSON_CUR
230 _json_get_var cur "UP_$cur"
231 _json_set_var JSON_CUR "$cur"
234 json_get_type type "$target"
237 json_get_var cur "$target"
238 _json_set_var JSON_CUR "$cur"
241 echo "WARNING: Variable '$target' does not exist or is not an array/object"