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"
173 _json_get_var cur JSON_CUR
174 _json_add_generic null
"$1" "" "$cur"
178 while [ "$#" -gt 0 ]; do
182 local name
="${field%%=*}"
183 local val
="${field#*=}"
184 [ "$name" != "$val" ] || val
=""
186 local type="${name#*:}"
187 [ "$type" != "$name" ] ||
type=string
191 string|int|boolean|double
)
193 _json_get_var cur JSON_CUR
194 _json_add_generic
"$type" "$name" "$val" "$cur"
200 # functions read access to json variables
213 eval "`jshn -r "$1"`"
217 eval "`jshn -R "$1"`"
221 jshn
"$@" ${JSON_PREFIX:+-p "$JSON_PREFIX"} ${JSON_NONEWLINE:+-n} ${JSON_INDENT:+-i} -w
228 _json_get_var __cur JSON_CUR
229 local __var
="${JSON_PREFIX}T_${__cur}_${2//[^a-zA-Z0-9_]/_}"
230 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
238 json_get_var _tbl_cur
"$2"
240 _json_get_var _tbl_cur JSON_CUR
242 local __var
="${JSON_PREFIX}K_${_tbl_cur}"
243 eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
248 local _v_keys _v_val _select
=
249 local _json_no_warning
=1
253 json_select
"$2" ||
return 1
257 json_get_keys _v_keys
259 while [ "$#" -gt 0 ]; do
260 json_get_var _v_val
"$1"
261 __jshn_raw_append
"$_v_dest" "$_v_val"
264 [ -n "$_select" ] && json_select ..
273 _json_get_var __cur JSON_CUR
274 local __var
="${JSON_PREFIX}${__cur}_${2//[^a-zA-Z0-9_]/_}"
275 eval "export -- \"$__dest=\${$__var:-$3}\"; [ -n \"\${$__var+x}\${3+x}\" ]"
279 while [ "$#" -gt 0 ]; do
280 local _var
="$1"; shift
281 if [ "$_var" != "${_var#*:}" ]; then
282 json_get_var
"${_var%%:*}" "${_var%%:*}" "${_var#*:}"
284 json_get_var
"$_var" "$_var"
295 _json_set_var JSON_CUR
"J_V"
298 [[ "$1" == ".." ]] && {
299 _json_get_var cur JSON_CUR
300 _json_get_var cur
"U_$cur"
301 _json_set_var JSON_CUR
"$cur"
304 json_get_type
type "$target"
307 json_get_var cur
"$target"
308 _json_set_var JSON_CUR
"$cur"
311 [ -n "$_json_no_warning" ] || \
312 echo "WARNING: Variable '$target' does not exist or is not an array/object"
321 json_get_type
type "$1"
325 json_for_each_item
() {
326 [ "$#" -ge 2 ] ||
return 0
327 local function="$1"; shift
328 local target
="$1"; shift
331 json_get_type
type "$target"
335 json_select
"$target"
338 json_get_var val
"$key"
339 eval "$function \"\$val\" \"\$key\" \"\$@\""
344 json_get_var val
"$target"
345 eval "$function \"\$val\" \"\" \"\$@\""