sudocurse · April 29, 2020 10:30 · Apr 29, 2020 · Apr 29, 2020 · Apr 29, 2020 · Apr 29, 2020
diff --git a/uncatj b/uncatj
@@ -9,8 +9,34 @@
 # back to json.
 # The newline in the middle of the sed command is for BSD compatibility
 #
-# Still some problems:
+# Still one problem:
 #   - top-level arrays flatten to "[0].asdf" which cause invalid path expressions
+#     The only hack I can think of right now for this is to wrap top level arrays 
+#     as a value in a pair in the top level object:
+#         sed -E 's/(^\[[0-9]\])/.TLA\1/g'
+#     along with the <<< '{"TLA":[]}' listed below instead of <<< '{}'
+#
+#     Doing so would produce the following:
+#  % echo '["g", 3, "throw"]' | catj | sed -E 's/(^\[[0-9]\])/.TLA\1/g' | uncatj
+#    {
+#      "TLA": [
+#        "g",
+#        3,
+#        "throw"
+#      ]
+#    }
+#    This ugly change also forces an extra element into normal objects:
+#
+#  % echo '.HostConfig.PortBindings.HostIp = ""' | uncatj
+#  {
+#    "TLA": [],
+#    "HostConfig": {
+#      "PortBindings": {
+#        "HostIp": ""
+#      }
+#    }
+#  }
+# I hate it but it works
 
-( jq -r "$(sed 's/$/ |/;$a\
-.')" <<< '{}' ) < "${1:-/dev/stdin}"
+( jq -r "$(sed -E 's/(^\[[0-9]\])/.TLA\1/g ; s/$/ |/;$a\
+.')" <<< '{"TLA":[]}' ) < "${1:-/dev/stdin}"
diff --git a/uncatj b/uncatj
@@ -1 +1,16 @@
-#!true
+#!/bin/bash
+#
+# Converts flat json such as:
+#
+#   .clients[0].id = "59761c23b30d971669fb42ff"
+#   .clients[0].isActive = true
+#   .clients[0].age = 36
+#
+# back to json.
+# The newline in the middle of the sed command is for BSD compatibility
+#
+# Still some problems:
+#   - top-level arrays flatten to "[0].asdf" which cause invalid path expressions
+
+( jq -r "$(sed 's/$/ |/;$a\
+.')" <<< '{}' ) < "${1:-/dev/stdin}"
diff --git a/catj b/catj
@@ -13,7 +13,7 @@ jq -r --stream '
     .[0] | map(
       if type == "number"
       then "[" + tostring + "]"
-      else "." + .
+      else "." + "\"" + . + "\""
       end
     ) | add
   ) + " = " + (.[1] | @json)

diff --git a/uncatj b/uncatj
@@ -0,0 +1 @@
+#!true
diff --git a/catj b/catj
@@ -17,4 +17,4 @@ jq -r --stream '
       end
     ) | add
   ) + " = " + (.[1] | @json)
-'
+' < "${1:-/dev/stdin}"
diff --git a/jsonpaths b/jsonpaths
@@ -1,20 +0,0 @@
-#!/bin/bash
-#
-# Outputs JSON paths.
-#
-# Based on https://news.ycombinator.com/item?id=20264654
-#
-# Usage:
-# curl -s https://raw.githubusercontent.com/sitepoint-editors/json-examples/master/src/db.json | ./jsonpaths
-
-jq -r --stream '
-  select(length > 1)
-  | (
-    .[0] | map(
-      if type == "number"
-      then "[" + tostring + "]"
-      else "." + .
-      end
-    ) | add
-  ) + " = " + (.[1] | @json)
-'

diff --git a/catj b/catj
@@ -0,0 +1,20 @@
+#!/bin/bash
+#
+# Outputs JSON paths.
+#
+# Based on https://news.ycombinator.com/item?id=20264654
+#
+# Usage:
+# curl -s https://raw.githubusercontent.com/sitepoint-editors/json-examples/master/src/db.json | ./jsonpaths
+
+jq -r --stream '
+  select(length > 1)
+  | (
+    .[0] | map(
+      if type == "number"
+      then "[" + tostring + "]"
+      else "." + .
+      end
+    ) | add
+  ) + " = " + (.[1] | @json)
+'
diff --git a/jsonpaths b/jsonpaths
@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Displays JSON paths.
+# Outputs JSON paths.
 #
 # Based on https://news.ycombinator.com/item?id=20264654
 #

diff --git a/jsonpaths b/jsonpaths
@@ -0,0 +1,20 @@
+#!/bin/bash
+#
+# Displays JSON paths.
+#
+# Based on https://news.ycombinator.com/item?id=20264654
+#
+# Usage:
+# curl -s https://raw.githubusercontent.com/sitepoint-editors/json-examples/master/src/db.json | ./jsonpaths
+
+jq -r --stream '
+  select(length > 1)
+  | (
+    .[0] | map(
+      if type == "number"
+      then "[" + tostring + "]"
+      else "." + .
+      end
+    ) | add
+  ) + " = " + (.[1] | @json)
+'