From e7fcaf2f6bd62868cce4dab41056ee2597c47d58 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Paul=20H=C3=A4nsch?= <paul@plutz.net>
Date: Mon, 26 Feb 2024 01:47:53 +0100
Subject: [PATCH] json export function

---
 json.sh | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/json.sh b/json.sh
index ba1539a..f43f8ec 100755
--- a/json.sh
+++ b/json.sh
@@ -300,3 +300,61 @@ json_get() {
   json_get "$json" "$jpath"
   return $?
 }
+
+json_dump_string() {
+  local in="$1" out=''
+  while [ "$in" ]; do case $in in
+    \\*) out="${out}\\\\"; in="${in#\\}" ;;
+    "$BR"*) out="${out}\\n"; in="${in#${BR}}" ;;
+    "$CR"*) out="${out}\\r"; in="${in#${CR}}" ;;
+    "   "*) out="${out}\\t"; in="${in#  }" ;;
+    \"*) out="${out}\\\""; in="${in#\"}" ;;
+    *) out="${out}${in%%[\\${CR}${BR}	\"]*}"; in="${in#"${in%%[\\${BR}${CR}	\"]*}"}" ;;
+  esac; done
+  printf '"%s"' "${out}"
+}
+
+json_dump_array() {
+  local json="$1" value out=''
+
+  for value in $(DB2 "$json" iterate @); do
+    out="${out},$(json_dump "$(UNSTRING "$value")")"
+  done
+  printf '[%s]' "${out#,}"
+}
+
+json_dump_object() {
+  local json="$1" key value out=''
+
+  while read -r key value; do
+    out="${out},$(json_dump_string "$(UNSTRING "$key")"):$(json_dump "$(UNSTRING "$value")")"
+  done <<-EOF
+	${json}
+	EOF
+  printf '{%s}' "${out#,}"
+}
+
+json_dump() {
+  local json="$1"
+
+  case $json in
+    str:*)
+      json_dump_string "${json#str:}"
+      ;;
+    arr:*)
+      json_dump_array "${json#arr:}"
+      ;;
+    obj:*)
+      json_dump_object "${json#obj:}"
+      ;;
+    num:*)
+      printf "${json#num:}"
+      ;;
+    true|false|null)
+      printf %s\\n "$json"
+      ;;
+    *)
+      json_dump_string "${json}"
+      ;;
+  esac
+}
-- 
2.39.2