- Improved documentation.

doc/neosnippet.txt

@@ -391,25 +391,27 @@ Example:
 < 
 
 The snippet syntax is close to the one of |snipMate|. Each snippet starts with
-some keywords that define the name and modify the expansion and treatment of the
+some keywords that define the name and modify the expansion and treatment of
-snippet.
+the snippet.
 
 Snippet Keywords:
 
 - snippet [name] (Required)
 
-	Each snippet starts with the keyword "snippet". This keyword is directly
+	Each snippet starts with the keyword "snippet". This keyword is
-	followed by the snippet name. The snippet name is used to expand the snippet.
+	directly followed by the snippet name. The snippet name is used to
+	expand the snippet.
 
 - abbr [name] (Optional)
 
-	You can define an abbreviation for the snippet name. It will be displayed in
+	You can define an abbreviation for the snippet name. It will be
-	the drop down selection menu of the neocomplcache plugin.
+	displayed in the drop down selection menu of the neocomplcache plugin.
 
 - alias [aliases] (Optional)
 
-	Alias names can be use as additional keywords to expand the snippet. You can
+	Alias names can be use as additional keywords to expand the snippet.
-	define multiple aliases using  either spaces ' ' or commas ',' as separator.
+	You can define multiple aliases using  either spaces ' ' or commas ','
+	as separator.
 
 	Example
 
@@ -419,8 +421,8 @@ Snippet Keywords:
 
 - regexp [pattern] (Optional)
 
-	A pattern can be defined via a regular expression. The snippet expands only 
+	A pattern can be defined via a regular expression. The snippet expands
-	when the expression pattern is matched.
+	only when the expression pattern is matched.
 
 	Example
 
@@ -432,9 +434,9 @@ Snippet Keywords:
 
 	Options influence the snippet behavior. The possible values are:
 
-	+ word	This snippet expands by a word boundary. Note: To complete
+	+ word	This snippet expands by a word boundary.
-		the trigger with snippets_complete, it must be a word character 
+		Note: To complete the trigger with snippets_complete, it must
-		(digits, alphabetical characters or "_"). 
+		be a word character (digits, alphabetical characters or "_").
 
 >
 		snippet     date
@@ -460,19 +462,20 @@ Snippet Keywords:
 The snippet itself starts below the part that contains the options, snippet
 aliases and keywords, described above. It contains the snippet which gets
 expanded which can contain several placeholders. The placeholders are used as
-jump points while expanding the snippet. There are several placeholders available
+jump points while expanding the snippet. There are several placeholders
-providing different functionality.
+available providing different functionality.
 
 The structure of a placeholder can be:
 
 - ${number:placeholder text}
 
-	The placeholder starts with a dollar sign "$". The number of a placeholder 
+	The placeholder starts with a dollar sign "$". The number of a
-	and the placeholder text are separated by a colon ":". They are surrounded 
+	placeholder and the placeholder text are separated by a colon ":".
-	by a pair of curly braces "{}". The placeholder text is displayed after 
+	They are surrounded by a pair of curly braces "{}". The placeholder
-	the snippet expansion and will be replaced by your text. If you jump over 
+	text is displayed after the snippet expansion and will be replaced by
-	the snippet and do not insert any text in that placeholder position the text 
+	your text. If you jump over the snippet and do not insert any text in
-	remains there. This can be used as a default value for a certain position.
+	that placeholder position the text remains there. This can be used as
+	a default value for a certain position.
 
 	Example
 
@@ -485,9 +488,9 @@ The structure of a placeholder can be:
 
 - ${number:#:placeholder text}
 
-	In this kind of placeholder the number is followed by the hash character "#". 
+	In this kind of placeholder the number is followed by the hash
-	If you jump over this placeholder and do not insert any text, the placeholder 
+	character "#".  If you jump over this placeholder and do not insert
-	text will be removed.
+	any text, the placeholder text will be removed.
 
 	Example
 
@@ -501,7 +504,8 @@ The structure of a placeholder can be:
 - ${number:TARGET}
 
 	This is the target placeholder which is replaced by text from a visual
-	selection. Note: You need to make a visual selection and expand your 
+	selection.
+	Note: You need to make a visual selection and expand your
 	snippet with the key mapping below for this to work.
 
 	|<Plug>(neosnippet_expand_target)|.
@@ -520,9 +524,9 @@ The structure of a placeholder can be:
 
 - ${number}
 
-	This is a placeholder which you can use as a simple jump position. This can be
+	This is a placeholder which you can use as a simple jump position.
-	useful if you edit a placeholder inside of some sort of brackets or environment
+	This can be useful if you edit a placeholder inside of some sort of
-	and want to go on behind it after that.
+	brackets or environment and want to go on behind it after that.
 
 	Example
 
@@ -536,12 +540,14 @@ The structure of a placeholder can be:
 <
 
 - $number
+- ${0}
 
-	This is a synchronized placeholder. Sometimes it is required to repeat a value
+	This is a synchronized placeholder. Sometimes it is required to repeat
-	in several positions inside a snippet. If you set the number of this placeholder
+	a value in several positions inside a snippet. If you set the number
-	to the same number as one of the other placeholders in the snippet, it will
+	of this placeholder to the same number as one of the other
-	repeat its content. $1 is synchronized to ${1} and so on. $0 will be the final
+	placeholders in the snippet, it will repeat its content. $1 is
-	jump placeholder.
+	synchronized to ${1} and so on. ${0} will be the final jump
+	placeholder.
 
 	Example
 
@@ -552,8 +558,9 @@ The structure of a placeholder can be:
 	   } // namespace $1
 <
 
-	Note: If you like to include characters in snippets that already have a
+	Note: If you like to include characters in snippets that already have
-	special meaning to neosnippet you need to escape them with a backslash.
+	a special meaning to neosnippet you need to escape them with a
+	backslash.
 
 >
 	snippet code
@@ -570,7 +577,8 @@ The structure of a placeholder can be:
 	    end
 <
 
-	A placeholder value can not contain new lines. The snippet below is not valid.
+	A placeholder value can not contain new lines. The snippet below is
+	not valid.
 
 >
 	snippet invalid
@@ -661,8 +669,8 @@ Note: "#{string}" is comment string. But it must be in head.
 	  # It is not comment string!
 <
 
-Note: Neosnippet ignores empty or spaces lines in snippet end. If you want to insert empty
+Note: Neosnippet ignores empty or spaces lines in snippet end. If you want to
-line in snippet end, you must insert placeholder.
+insert empty line in snippet end, you must insert placeholder.
 >
 	# This is valid.
 	snippet     #!