# functions for parsing and generating json
_json_get_var() {
- local ___dest="$1"
- local ___var="$2"
- eval "$___dest=\"\$${JSON_PREFIX}$___var\""
+ # dest=$1
+ # var=$2
+ eval "$1=\"\$${JSON_PREFIX}$2\""
}
_json_set_var() {
- local ___var="$1"
+ # var=$1
local ___val="$2"
- eval "${JSON_PREFIX}$___var=\"\$___val\""
+ eval "${JSON_PREFIX}$1=\"\$___val\""
}
-_jshn_append() {
- local __var="$1"
- local __value="$2"
- local __sep="${3:- }"
- local __old_val
+__jshn_raw_append() {
+ # var=$1
+ local value="$2"
+ local sep="${3:- }"
- _json_get_var __old_val "$__var"
- __value="${__old_val:+$__old_val$__sep}$__value"
- _json_set_var "$__var" "$__value"
+ eval "export -- \"$1=\${$1:+\${$1}\${value:+\$sep}}\$value\""
}
-_json_export() {
- local __var="${JSON_PREFIX}$1"
- local __val="$2"
-
- export -- "$__var=$__val"
- _jshn_append "JSON_UNSET" "$__var"
-}
-
-_json_add_key() {
- local table="$1"
- local var="$2"
- _jshn_append "KEYS_${table}" "$var"
+_jshn_append() {
+ # var=$1
+ local _a_value="$2"
+ eval "${JSON_PREFIX}$1=\"\${${JSON_PREFIX}$1} \$_a_value\""
}
_get_var() {
- local __dest="$1"
- local __var="$2"
- eval "$__dest=\"\$$__var\""
+ # var=$1
+ # value=$2
+ eval "$1=\"\$$2\""
}
_set_var() {
- local __var="$1"
+ # var=$1
local __val="$2"
- eval "$__var=\"\$__val\""
+ eval "$1=\"\$__val\""
}
_json_inc() {
- local _var="$1"
- local _dest="$2"
- local _seq
+ # var=$1
+ # dest=$2
- _json_get_var _seq "$_var"
- _seq="$((${_seq:-0} + 1))"
- _json_set_var "$_var" "$_seq"
- [ -n "$_dest" ] && _set_var "$_dest" "$_seq"
-}
-
-_json_stack_push() {
- local new_cur="$1"
- local cur
-
- _json_get_var cur JSON_CUR
- _jshn_append JSON_STACK "$cur"
- _json_set_var JSON_CUR "$new_cur"
+ let "${JSON_PREFIX}$1 += 1" "$2 = ${JSON_PREFIX}$1"
}
_json_add_generic() {
- local type="$1"
- local var="$2"
- local val="$3"
- local cur="$4"
-
- [ -n "$cur" ] || _json_get_var cur JSON_CUR
-
- if [ "${cur%%[0-9]*}" = "JSON_ARRAY" ]; then
- _json_inc "SEQ_$cur" var
+ # type=$1
+ # name=$2
+ # value=$3
+ # cur=$4
+
+ local var
+ if [ "${4%%[0-9]*}" = "J_A" ]; then
+ _json_inc "S_$4" var
else
- local name="${var//[^a-zA-Z0-9_]/_}"
- [[ "$name" == "$var" ]] || _json_export "NAME_${cur}_${name}" "$var"
- var="$name"
+ var="${2//[^a-zA-Z0-9_]/_}"
+ [[ "$var" == "$2" ]] || export -- "${JSON_PREFIX}N_${4}_${var}=$2"
fi
- _json_export "${cur}_$var" "$val"
- _json_export "TYPE_${cur}_$var" "$type"
- _json_add_key "$cur" "$var"
+ export -- \
+ "${JSON_PREFIX}${4}_$var=$3" \
+ "${JSON_PREFIX}T_${4}_$var=$1"
+ _jshn_append "JSON_UNSET" "${4}_$var"
+ _jshn_append "K_$4" "$var"
}
_json_add_table() {
- local name="$1"
- local type="$2"
- local itype="$3"
- local cur new_cur
- local seq
+ # name=$1
+ # type=$2
+ # itype=$3
+ local cur seq
_json_get_var cur JSON_CUR
_json_inc JSON_SEQ seq
- local table="JSON_$itype$seq"
- _json_export "UP_$table" "$cur"
- _json_export "KEYS_$table" ""
- [ "$itype" = "ARRAY" ] && _json_export "SEQ_$table" ""
- _json_stack_push "$table"
+ local table="J_$3$seq"
+ _json_set_var "U_$table" "$cur"
+ export -- "${JSON_PREFIX}K_$table="
+ unset "${JSON_PREFIX}S_$table"
+ _json_set_var JSON_CUR "$table"
+ _jshn_append "JSON_UNSET" "$table"
- _json_get_var new_cur JSON_CUR
- _json_add_generic "$type" "$1" "$new_cur" "$cur"
+ _json_add_generic "$2" "$1" "$table" "$cur"
}
_json_close_table() {
- local stack new_stack
+ local _s_cur
- _json_get_var stack JSON_STACK
- _json_set_var JSON_CUR "${stack##* }"
- new_stack="${stack% *}"
- [[ "$stack" == "$new_stack" ]] && new_stack=
- _json_set_var JSON_STACK "$new_stack"
+ _json_get_var _s_cur JSON_CUR
+ _json_get_var "${JSON_PREFIX}JSON_CUR" "U_$_s_cur"
}
json_set_namespace() {
}
json_cleanup() {
- local unset
+ local unset tmp
_json_get_var unset JSON_UNSET
- [ -n "$unset" ] && eval "unset $unset"
+ for tmp in $unset J_V; do
+ unset \
+ ${JSON_PREFIX}U_$tmp \
+ ${JSON_PREFIX}K_$tmp \
+ ${JSON_PREFIX}S_$tmp \
+ ${JSON_PREFIX}T_$tmp \
+ ${JSON_PREFIX}N_$tmp \
+ ${JSON_PREFIX}$tmp
+ done
unset \
${JSON_PREFIX}JSON_SEQ \
- ${JSON_PREFIX}JSON_STACK \
${JSON_PREFIX}JSON_CUR \
- ${JSON_PREFIX}JSON_UNSET \
- ${JSON_PREFIX}KEYS_JSON_VAR \
- ${JSON_PREFIX}TYPE_JSON_VAR
+ ${JSON_PREFIX}JSON_UNSET
}
json_init() {
json_cleanup
+ export -n ${JSON_PREFIX}JSON_SEQ=0
export -- \
- ${JSON_PREFIX}JSON_SEQ=0 \
- ${JSON_PREFIX}JSON_STACK= \
- ${JSON_PREFIX}JSON_CUR="JSON_VAR" \
- ${JSON_PREFIX}JSON_UNSET="" \
- ${JSON_PREFIX}KEYS_JSON_VAR= \
- ${JSON_PREFIX}TYPE_JSON_VAR=
+ ${JSON_PREFIX}JSON_CUR="J_V" \
+ ${JSON_PREFIX}K_J_V=
}
json_add_object() {
- _json_add_table "$1" object TABLE
+ _json_add_table "$1" object T
}
json_close_object() {
}
json_add_array() {
- _json_add_table "$1" array ARRAY
+ _json_add_table "$1" array A
}
json_close_array() {
}
json_add_string() {
- _json_add_generic string "$1" "$2"
+ local cur
+ _json_get_var cur JSON_CUR
+ _json_add_generic string "$1" "$2" "$cur"
}
json_add_int() {
- _json_add_generic int "$1" "$2"
+ local cur
+ _json_get_var cur JSON_CUR
+ _json_add_generic int "$1" "$2" "$cur"
}
json_add_boolean() {
- _json_add_generic boolean "$1" "$2"
+ local cur
+ _json_get_var cur JSON_CUR
+ _json_add_generic boolean "$1" "$2" "$cur"
+}
+
+json_add_double() {
+ local cur
+ _json_get_var cur JSON_CUR
+ _json_add_generic double "$1" "$2" "$cur"
+}
+
+json_add_null() {
+ local cur
+ _json_get_var cur JSON_CUR
+ _json_add_generic null "$1" "" "$cur"
}
# functions read access to json variables
json_load() {
- eval `jshn -r "$1"`
+ eval "`jshn -r "$1"`"
+}
+
+json_load_file() {
+ eval "`jshn -R "$1"`"
}
json_dump() {
}
json_get_type() {
- local dest="$1"
- local cur
+ local __dest="$1"
+ local __cur
- _json_get_var cur JSON_CUR
- local var="${JSON_PREFIX}TYPE_${cur}_${2//[^a-zA-Z0-9_]/_}"
- eval "export -- \"$dest=\${$var}\"; [ -n \"\${$var+x}\" ]"
+ _json_get_var __cur JSON_CUR
+ local __var="${JSON_PREFIX}T_${__cur}_${2//[^a-zA-Z0-9_]/_}"
+ eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
+}
+
+json_get_keys() {
+ local __dest="$1"
+ local _tbl_cur
+
+ if [ -n "$2" ]; then
+ json_get_var _tbl_cur "$2"
+ else
+ _json_get_var _tbl_cur JSON_CUR
+ fi
+ local __var="${JSON_PREFIX}K_${_tbl_cur}"
+ eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
+}
+
+json_get_values() {
+ local _v_dest="$1"
+ local _v_keys _v_val _select=
+ local _json_no_warning=1
+
+ unset "$_v_dest"
+ [ -n "$2" ] && {
+ json_select "$2" || return 1
+ _select=1
+ }
+
+ json_get_keys _v_keys
+ set -- $_v_keys
+ while [ "$#" -gt 0 ]; do
+ json_get_var _v_val "$1"
+ __jshn_raw_append "$_v_dest" "$_v_val"
+ shift
+ done
+ [ -n "$_select" ] && json_select ..
+
+ return 0
}
json_get_var() {
_json_get_var __cur JSON_CUR
local __var="${JSON_PREFIX}${__cur}_${2//[^a-zA-Z0-9_]/_}"
- eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
+ eval "export -- \"$__dest=\${$__var:-$3}\"; [ -n \"\${$__var+x}\${3+x}\" ]"
}
json_get_vars() {
while [ "$#" -gt 0 ]; do
local _var="$1"; shift
- json_get_var "$_var" "$_var"
+ if [ "$_var" != "${_var#*:}" ]; then
+ json_get_var "${_var%%:*}" "${_var%%:*}" "${_var#*:}"
+ else
+ json_get_var "$_var" "$_var"
+ fi
done
}
local cur
[ -z "$1" ] && {
- _json_set_var JSON_CUR "JSON_VAR"
+ _json_set_var JSON_CUR "J_V"
return 0
}
[[ "$1" == ".." ]] && {
_json_get_var cur JSON_CUR
- _json_get_var cur "UP_$cur"
+ _json_get_var cur "U_$cur"
_json_set_var JSON_CUR "$cur"
return 0
}
_json_set_var JSON_CUR "$cur"
;;
*)
- echo "WARNING: Variable '$target' does not exist or is not an array/object"
+ [ -n "$_json_no_warning" ] || \
+ echo "WARNING: Variable '$target' does not exist or is not an array/object"
return 1
;;
esac
projects / project / libubox.git / blobdiff