1 # functions for parsing and generating json
6 eval "$1=\"\$${JSON_PREFIX}$2\""
12 eval "${JSON_PREFIX}$1=\"\$___val\""
20 eval "export -- \"$1=\${$1:+\${$1}\${value:+\$sep}}\$value\""
26 eval "${JSON_PREFIX}$1=\"\${${JSON_PREFIX}$1} \$_a_value\""
45 let "${JSON_PREFIX}$1 += 1" "$2 = ${JSON_PREFIX}$1"
55 if [ "${4%%[0-9]*}" = "J_A" ]; then
58 var="${2//[^a-zA-Z0-9_]/_}"
59 [[ "$var" == "$2" ]] || export -- "${JSON_PREFIX}N_${4}_${var}=$2"
63 "${JSON_PREFIX}${4}_$var=$3" \
64 "${JSON_PREFIX}T_${4}_$var=$1"
65 _jshn_append "JSON_UNSET" "${4}_$var"
66 _jshn_append "K_$4" "$var"
75 _json_get_var cur JSON_CUR
76 _json_inc JSON_SEQ seq
78 local table="J_$3$seq"
79 _json_set_var "U_$table" "$cur"
80 export -- "${JSON_PREFIX}K_$table="
81 unset "${JSON_PREFIX}S_$table"
82 _json_set_var JSON_CUR "$table"
83 _jshn_append "JSON_UNSET" "$table"
85 _json_add_generic "$2" "$1" "$table" "$cur"
91 _json_get_var _s_cur JSON_CUR
92 _json_get_var "${JSON_PREFIX}JSON_CUR" "U_$_s_cur"
95 json_set_namespace() {
99 [ -n "$_old" ] && _set_var "$_old" "$JSON_PREFIX"
106 _json_get_var unset JSON_UNSET
107 for tmp in $unset J_V; do
109 ${JSON_PREFIX}U_$tmp \
110 ${JSON_PREFIX}K_$tmp \
111 ${JSON_PREFIX}S_$tmp \
112 ${JSON_PREFIX}T_$tmp \
113 ${JSON_PREFIX}N_$tmp \
118 ${JSON_PREFIX}JSON_SEQ \
119 ${JSON_PREFIX}JSON_CUR \
120 ${JSON_PREFIX}JSON_UNSET
125 export -n ${JSON_PREFIX}JSON_SEQ=0
127 ${JSON_PREFIX}JSON_CUR="J_V" \
132 _json_add_table "$1" object T
135 json_close_object() {
140 _json_add_table "$1" array A
149 _json_get_var cur JSON_CUR
150 _json_add_generic string "$1" "$2" "$cur"
155 _json_get_var cur JSON_CUR
156 _json_add_generic int "$1" "$2" "$cur"
161 _json_get_var cur JSON_CUR
162 _json_add_generic boolean "$1" "$2" "$cur"
167 _json_get_var cur JSON_CUR
168 _json_add_generic double "$1" "$2" "$cur"
171 # functions read access to json variables
174 eval "`jshn -r "$1"`"
178 jshn "$@" ${JSON_PREFIX:+-p "$JSON_PREFIX"} -w
185 _json_get_var __cur JSON_CUR
186 local __var="${JSON_PREFIX}T_${__cur}_${2//[^a-zA-Z0-9_]/_}"
187 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
195 json_get_var _tbl_cur "$2"
197 _json_get_var _tbl_cur JSON_CUR
199 local __var="${JSON_PREFIX}K_${_tbl_cur}"
200 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
205 local _v_keys _v_val _select=
206 local _json_no_warning=1
210 json_select "$2" || return 1
214 json_get_keys _v_keys
216 while [ "$#" -gt 0 ]; do
217 json_get_var _v_val "$1"
218 __jshn_raw_append "$_v_dest" "$_v_val"
221 [ -n "$_select" ] && json_select ..
230 _json_get_var __cur JSON_CUR
231 local __var="${JSON_PREFIX}${__cur}_${2//[^a-zA-Z0-9_]/_}"
232 eval "export -- \"$__dest=\${$__var:-$3}\"; [ -n \"\${$__var+x}\${3+x}\" ]"
236 while [ "$#" -gt 0 ]; do
237 local _var="$1"; shift
238 if [ "$_var" != "${_var#*:}" ]; then
239 json_get_var "${_var%%:*}" "${_var%%:*}" "${_var#*:}"
241 json_get_var "$_var" "$_var"
252 _json_set_var JSON_CUR "J_V"
255 [[ "$1" == ".." ]] && {
256 _json_get_var cur JSON_CUR
257 _json_get_var cur "U_$cur"
258 _json_set_var JSON_CUR "$cur"
261 json_get_type type "$target"
264 json_get_var cur "$target"
265 _json_set_var JSON_CUR "$cur"
268 [ -n "$_json_no_warning" ] || \
269 echo "WARNING: Variable '$target' does not exist or is not an array/object"
278 json_get_type type "$1"