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jshn: add ability to pass default values to json_get_var and json_get_vars

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This commit is contained in:
Jo-Philipp Wich 2013-12-10 17:30:15 +00:00
parent 318d682d29
commit e58fa88e1f
1 changed files with 6 additions and 2 deletions
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8
sh/jshn.sh
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@ -231,13 +231,17 @@ 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
}