newline & indent options

README.md

@@ -124,6 +124,24 @@ assert(inspect(t5, {depth = 2}) == [[{
 
 `options.depth` defaults to infinite (`math.huge`).
 
+### options.newline & options.indent
+
+These are the strings used by `inspect` to respectively add a newline and indent each level of a table.
+
+By default, `options.newline` is `"\n"` and `options.indent` is `"  "` (two spaces).
+
+``` lua
+local t = {a={b=1}}
+
+assert(inspect(t) == [[{
+  a = {
+    b = 1
+  }
+}]])
+
+assert(inspect(t, {newline='@', indent="++"}), "{@++a = {@++++b = 1@++}@}"
+```
+
 ### options.process
 
 `options.process` is a function which allow altering the passed object before transforming it into a string.

inspect.lua

@@ -199,7 +199,7 @@ function Inspector:down(f)
 end
 
 function Inspector:tabify()
-  self:puts("\n", string.rep("  ", self.level))
+  self:puts(self.newline, string.rep(self.indent, self.level))
 end
 
 function Inspector:commaControl(needsComma)
@@ -304,6 +304,8 @@ function inspect.inspect(root, options)
   options       = options or {}
   local depth   = options.depth or math.huge
   local process = options.process
+  local newline = options.newline or '\n'
+  local indent  = options.indent  or '  '
   if process then
     root = processRecursive(process, root, {})
   end
@@ -314,6 +316,8 @@ function inspect.inspect(root, options)
     level            = 0,
     ids              = setmetatable({}, idsMetaTable),
     maxIds           = setmetatable({}, maxIdsMetaTable),
+    newline          = newline,
+    indent           = indent,
     tableAppearances = countTableAppearances(root)
   }, Inspector_mt)
 

spec/inspect_spec.lua

@@ -197,6 +197,22 @@ describe( 'inspect', function()
       end)
     end)
 
+    describe('the newline option', function()
+      it('changes the substring used for newlines', function()
+        local t = {a={b=1}}
+
+        assert.equal(inspect(t, {newline='@'}), "{@  a = {@    b = 1@  }@}")
+      end)
+    end)
+
+    describe('the indent option', function()
+      it('changes the substring used for indenting', function()
+        local t = {a={b=1}}
+
+        assert.equal(inspect(t, {indent='>>>'}), "{\n>>>a = {\n>>>>>>b = 1\n>>>}\n}")
+      end)
+    end)
+
     describe('the process option', function()
 
       it('removes one element', function()