BREAKING CHANGE: Default wordTrig to true, not false.

Makes sense as setting wordTrig to true is way more common than
setting it to false.

DOC.md

@@ -46,7 +46,7 @@ entries:
           for multiple lines.
 - `wordTrig`: boolean, if true, the snippet is only expanded if the word
               (`[%w_]+`) before the cursor matches the trigger entirely.
-	      False by default.
+			  True by default.
 - `regTrig`: boolean, whether the trigger should be interpreted as a
              lua pattern. False by default.
 
@@ -150,7 +150,7 @@ Examples:
 	Use captures from the regex-trigger using a functionNode:
 
 ```lua
- s({trig = "b(%d)", regTrig = true, wordTrig = true},
+ s({trig = "b(%d)", regTrig = true},
  	f(function(args) return
  		"Captured Text: " .. args[1].captures[1] .. "." end, {})
  )

Examples/snippets.lua

@@ -187,28 +187,28 @@ ls.snippets = {
 			"Wow! This ${1:Stuff} really ${2:works. ${3:Well, a bit.}}"
 		),
 
-		-- When wordTrig is set, snippets only expand as full words (lte won't expand, te will).
+		-- When wordTrig is set to false, snippets may also expand inside other words.
 		ls.parser.parse_snippet(
-			{ trig = "te", wordTrig = true },
+			{ trig = "te", wordTrig = false },
 			"${1:cond} ? ${2:true} : ${3:false}"
 		),
 
 		-- When regTrig is set, trig is treated like a pattern, this snippet will expand after any number.
 		ls.parser.parse_snippet(
-			{ trig = "%d", regTrig = true, wordTrig = true },
+			{ trig = "%d", regTrig = true },
 			"A Number!!"
 		),
 
 		-- The last entry of args passed to the user-function is the surrounding snippet.
 		s(
-			{ trig = "a%d", regTrig = true, wordTrig = true },
+			{ trig = "a%d", regTrig = true },
 			f(function(args)
 				return "Triggered with " .. args[1].trigger .. "."
 			end, {})
 		),
 		-- It's possible to use capture-groups inside regex-triggers.
 		s(
-			{ trig = "b(%d)", regTrig = true, wordTrig = true },
+			{ trig = "b(%d)", regTrig = true },
 			f(function(args)
 				return "Captured Text: " .. args[1].captures[1] .. "."
 			end, {})

lua/luasnip/nodes/snippet.lua

@@ -67,6 +67,9 @@ local function S(context, nodes, condition, ...)
 		end
 	end
 
+	-- default: true.
+	if context.wordTrig == nil then context.wordTrig = true end
+
 	local snip = Snippet:new({
 		trigger = context.trig,
 		dscr = dscr,
@@ -280,7 +283,7 @@ function Snippet:matches(line)
 		return nil
 	end
 
-	-- if wordTrig is set, the char before the trigger has to be \w or the
+	-- if wordTrig is set, the char before the trigger can't be \w or the
 	-- word has to start at the beginning of the line.
 	if
 		self.wordTrig