align.txt	The Alignment Tool			Oct 21, 2016

Author:    Charles E. Campbell      <NdrOchip@ScampbellPfamily.AbizM>
           (remove NOSPAM from Campbell's email first)
Copyright: (c) 2004-2016 by Charles E. Campbell     	Align-copyright
           The VIM LICENSE applies to Align.vim, AlignMaps.vim, and Align.txt
           (see copyright) except use "Align and AlignMaps" instead of "Vim"

1. Contents					align align-contents {{{1

	1. Contents.................: align-contents
	2. Alignment Manual.........: align-manual
	3. Alignment Usage..........: align-usage
	   Alignment Concepts.......: align-concepts
	   Alignment Commands.......: align-commands
	   Alignment Control........: align-control
	     Separators.............: alignctrl-separators
	     Initial Whitespace.....: alignctrl-w alignctrl-W alignctrl-I
	     Justification..........: alignctrl-l alignctrl-r alignctrl-c
	     Justification Control..: alignctrl-- alignctrl-+ alignctrl-:
	     Cyclic/Sequential......: alignctrl-= alignctrl-C
	     Separator Justification: alignctrl-< alignctrl-> alignctrl-
	     Line (de)Selection.....: alignctrl-g alignctrl-v
	     Temporary Settings.....: alignctrl-m
	     Padding................: alignctrl-p alignctrl-P
	     Current Options........: alignctrl-settings alignctrl-
	   Alignment Control Init...: alignctrl-init
	   Alignment................: align-align
	4. Alignment Maps...........: align-maps
	     \a,....................: alignmap-a,
	     \a?....................: alignmap-a?
	     \a<....................: alignmap-a<
	     \abox..................: alignmap-abox
	     \acom..................: alignmap-acom
	     \anum..................: alignmap-anum
	     \ascom.................: alignmap-ascom
	     \adec..................: alignmap-adec
	     \adef..................: alignmap-adef
	     \afnc..................: alignmap-afnc
	     \adcom.................: alignmap-adcom
	     \aocom.................: alignmap-aocom
	     \tbar..................: alignmap-tbar
	     \tsp...................: alignmap-tsp
	     \tsq...................: alignmap-tsq
	     \tt....................: alignmap-tt
	     \t=....................: alignmap-t=
	     \T=....................: alignmap-T=
	     \Tbar..................: alignmap-Tbar
	     \Htd...................: alignmap-Htd
	5. Alignment Tool History...: align-history

2. Align Manual			alignman alignmanual align-manual {{{1

	Align comes as a vimball; simply typing
		vim Align.vba.gz
		:so %
	should put its components where they belong.  The components are:
	To see a user's guide, see align-userguide
	To see examples, see alignctrl and alignmaps

||            \ Default/                                                     ||
||  Commands   \ Value/                Explanation                           ||
||              |    |                                                       ||
||  AlignCtrl   |    |  =Clrc-+:pPIWw [..list-of-separator-patterns..]       ||
||              |    +-------------------------------------------------------+|
||              |    |  may be called as a command or as a function:         ||
||              |    |  :AlignCtrl =lp0P0W & \\                              ||
||              |    |  :call Align#AlignCtrl('=lp0P0W','&','\\')            ||
||              |    |                                                       ||
||              |    +-------------------------------------------------------++
||   1st arg    |  = | =  all separator patterns are equivalent and are      ||
||              |    |    simultaneously active. Patterns are regexp.        ||
||              |    | C  cycle through separator patterns.  Patterns are    ||
||              |    |    regexp and are active sequentially.                ||
||              |    |                                                       ||
||              |  < | <  left justify separator   Separators are justified, ||
||              |    | >  right justify separator  too.  Separator styles    ||
||              |    | |  center separator         are cyclic.               ||
||              |    |                                                       ||
||              |  l | l  left justify   Justification styles are always     ||
||              |    | r  right justify  cyclic (ie. lrc would mean left j., ||
||              |    | c  center         then right j., then center, repeat. ||
||              |    | -  skip this separator                                ||
||              |    | +  re-use last justification method                   ||
||              |    | :  treat rest of text as a field                      ||
||              |    | *  use AlignSkip() function (to skip or not)          ||
||              |    |                                                       ||
||              | p1 | p### pad separator on left  by # blanks               ||
||              | P1 | P### pad separator on right by # blanks               ||
||              |    |                                                       ||
||              |  I | I  preserve and apply first line's leading white      ||
||              |    |    space to all lines                                 ||
||              |    | W  preserve leading white space on every line, even   ||
||              |    |    if it varies from line to line                     ||
||              |    | w  don't preserve leading white space                 ||
||              |    |                                                       ||
||              |    | g  second argument is a selection pattern -- only     ||
||              |    |    align on lines that have a match  (inspired by     ||
||              |    |    :g/selection pattern/command)                      ||
||              |    | v  second argument is a selection pattern -- only     ||
||              |    |    align on lines that _don't_ have a match (inspired ||
||              |    |    by :v/selection pattern/command)                   ||
||              |    |                                                       ||
||              |    | m  Map support: AlignCtrl will immediately do an      ||
||              |    |    AlignPush() and the next call to Align() will do   ||
||              |    |    an AlignPop at the end.  This feature allows maps  ||
||              |    |    to preserve user settings.                         ||
||              |    |                                                       ||
||              |    | default                                               ||
||              |    |    AlignCtrl default                                  ||
||              |    |    will clear the AlignCtrl                           ||
||              |    |    stack & set the default:  AlignCtrl "Ilp1P1=" '='  ||
||              |    |                                                       ||
||              +----+-------------------------------------------------------+|
||  More args   |  More arguments are interpreted as describing separators   ||
||              +------------------------------------------------------------+|
||   No args    |  AlignCtrl will display its current settings               ||
||[range]Align  |   [..list-of-separators..]                                 ||
||[range]Align! |   [AlignCtrl settings] [..list-of-separators..]            ||
||              +------------------------------------------------------------+|
||              |  Aligns text over the given range.  The range may be       ||
||              |  selected via visual mode (v, V, or ctrl-v) or via         ||
||              |  the command line.  The Align operation may be invoked     ||
||              |  as a command or as a function; as a function, the first   ||
||              |  argument is 0=separators only, 1=AlignCtrl option string  ||
||              |  followed by a list of separators.                         ||
||              |   :[range]Align                                            ||
||              |   :[range]Align [list of separators]                       ||
||              |   :[range]call Align#Align(0)                              ||
||              |   :[range]call Align#Align(0,"list","of","separators",...) ||

3. Alignment Usage	alignusage align-usage align-userguide {{{1

ALIGNMENT CONCEPTS		align-concept align-concepts alignctrl {{{1

	The typical text to be aligned is considered to be:

		* composed of two or more fields
		* separated by one or more separator pattern(s):
		* two or more lines

		ws field ws separator ws field ws separator ...
		ws field ws separator ws field ws separator ...

	where  "ws"     stands for "white space" such as blanks and/or tabs,
	and    "fields" are arbitrary text.
	For example, consider

		x= y= z= 3;
		xx= yy= zz= 4;
		zzz= yyy= zzz= 5;
		a= b= c= 3;

	Assume that it is desired to line up all the "=" signs; these, then,
	are the separators, and all else are fields.  The fields are composed
	of all the alphameric text.  Assuming they lie on lines 1-4, one may
	align those "=" signs with:

		:AlignCtrl l
		:1,4Align =

	Actually, the :AlignCtrl l wasn't necessary, because its in the default
	alignment control setting.

	The result is:

		x   = y   = z   = 3;
		xx  = yy  = zz  = 4;
		zzz = yyy = zzz = 5;
		a   = b   = c   = 3;

	Note how each "=" sign is surrounded by a single space; the
	default padding is p1P1 (p1 means one space before the separator,
	and P1 means one space after it).  If you wish to change the
	padding, say, to no padding, use  (see alignctrl-p)

		:AlignCtrl lp0P0

	Next, note how each field is left justified; that's what the "l"
	in the AlignCtrl parameters does (a small letter "ell").  If
	right-justification of the fields had been desired, an "r"
	could have been used:

		:AlignCtrl r


		  x =   y =   z = 3;
		 xx =  yy =  zz = 4;
		zzz = yyy = zzz = 5;
		  a =   b =   c = 3;

	There are many more options available for field justification: see
	alignctrl-c and alignctrl--.

	Separators, although commonly only one character long, are actually
	specified by regular expressions (see regexp), and one may left
	justify, right justify, or center them, too (see alignctrl-<).

	Assume that for some reason a left-right-left-right-... justification
	sequence was desired.  This wish is simply achieved with

		:AlignCtrl lr
		:1,4Align =

	because the justification commands are considered to be "cyclic"; ie.
	lr is the same as lrlrlrlrlrlrlr...

	There's a lot more discussed under alignctrl; hopefully the examples
	there will help, too.

ALIGNMENT COMMANDS			align-command align-commands {{{2

        The <Align.vim> script includes two primary commands and two
	minor commands:

	  AlignCtrl : this command/function sets up alignment options
	              which persist until changed for later Align calls.
		      It controls such things as: how to specify field
		      separators, initial white space, padding about
		      separators, left/right/center justification, etc.
			ex.  AlignCtrl wp0P1
                             Interpretation: during subsequent alignment
			     operations, preserve each line's initial
			     whitespace.  Use no padding before separators
			     but provide one padding space after separators.

	  Align     : this command/function operates on the range given it to
		      align text based on one or more separator patterns.  The
		      patterns may be provided via AlignCtrl or via Align

			ex. :%Align ,
			    Interpretation: align all commas over the entire
		      The :Align! format permits alignment control commands
		      to precede the alignment patterns.
			ex. :%Align! p2P2 =
		      This will align all "=" in the file with two padding
		      spaces on both sides of each "=" sign.

		      Align and AlignCtrl use <q-args> to obtain their
		      input patterns and they use an internal function to
		      split arguments at whitespace unless inside "..."s.
		      One may escape characters inside a double-quote string
		      by preceding such characters with a backslash.

	  AlignPush : this command/function pushes the current AlignCtrl
	              state onto an internal stack.
			ex. :AlignPush
			    Interpretation: save the current AlignCtrl
			    settings, whatever they may be.  They'll
			    also remain as the current settings until
			    AlignCtrl is used to change them.

	  AlignPop  : this command/function pops the current AlignCtrl
	              state from an internal stack.
			ex. :AlignPop
			    Interpretation: presumably AlignPush was
			    used (at least once) previously; this command
			    restores the AlignCtrl settings when AlignPush
			    was last used.
	              Also see alignctrl-m for a way to automatically do
	              an AlignPop after an Align (primarily this is for maps).

ALIGNMENT OPTIONS	align-option align-options align-xstrlen {{{2
    align-utf8 align-utf align-codepoint align-strlen align-multibyte

	For those of you who are using 2-byte (or more) characters such as are
	available with utf-8, Align now provides a special option which you
	may choose based upon your needs:

	Use Built-in strlen()

			let g:Align_xstrlen= 0

       This is the fastest method, but it doesn't handle multibyte characters
	well.  It is the default for:

	  vim compiled without multi-byte support
	  $LANG is en_US.UTF-8 (assuming USA english)

	Number of codepoints (Latin a + combining circumflex are two codepoints)

			let g:Align_xstrlen= 1              (default)

	Number of spacing codepoints (Latin a + combining circumflex is one
	spacing codepoint; a hard tab is one; wide and narrow CJK are one
	each; etc.)

			let g:Align_xstrlen= 2

	Virtual length (counting, for instance, tabs as anything between 1 and
	'tabstop', wide CJK as 2 rather than 1, Arabic alif as zero when
	immediately preceded by lam, one otherwise, etc.)

			let g:Align_xstrlen= 3

	User may specify a function to compute the string length

			let g:Align_xstrlen= "strlen"
	This method will cause Align to call upon the named function returning
	string length. it should resemble the strlen() function, taking one
	argument (the string) for input and returning the string length.

	By putting one of these settings into your <.vimrc>, Align will use an
	internal (interpreted) function to determine a string's length instead
	of Vim's built-in strlen() function.  Since the function is
	interpreted, Align will run a bit slower but will handle such strings
	correctly.  The last settings (g:Align_xstrlen= 3 and
	g:Align_xstrlen="userfuncname") probably will run the slowest but be
	the most accurate.  (thanks to Tony Mechelynck for these)

ALIGNMENT CONTROL				:AlignCtrl align-control {{{2

	This command doesn't do the alignment operation itself; instead, it
	controls subsequent alignment operation(s).

	The first argument to AlignCtrl is a string which may contain one or
	more alignment control settings.  Most of the settings are specified
	by single letters; the exceptions are the p# and P# commands which
	interpret a digit following the p or P as specifying padding about the

	The typical text line is considered to be composed of two or more
	fields separated by one or more separator pattern(s):

		ws field ws separator ws field ws separator ...

	where "ws" stands for "white space" such as blanks and/or tabs.

	SEPARATORS				alignctrl-separators {{{3

	As a result, separators may not have white space (tabs or blanks) on
	their outsides (ie.  ":  :" is fine as a separator, but " :: " is
	not).  Usually such separators are not needed, although a map has been
	provided which works around this limitation and aligns on whitespace
	(see alignmap-tsp).

	However, if you really need to have separators with leading or
	trailing whitespace, consider handling them by performing a substitute
	first (ie. s/  ::  /@/g), do the alignment on the temporary pattern
	(ie. @), and then perform a substitute to revert the separators back
	to their desired condition (ie. s/@/  ::  /g).

	The Align#Align() function (the function that is invoked by the :Align
	command) will first convert tabs over the region into spaces and then
	apply alignment control.  Except for initial white space, white space
	surrounding the fields is ignored.  One has three options just for
	handling initial white space:

	--- 						alignctrl-w
	wWI 	INITIAL WHITE SPACE			alignctrl-W {{{3
	--- 						alignctrl-I
		w : ignore all selected lines' initial white space
		W : retain all selected lines' initial white space
		I : retain only the first line's initial white space and
		    re-use it for subsequent lines

	Example: Leading white space options:
	                 |AlignCtrl w= :=|  AlignCtrl W= :=  | AlignCtrl I= := |
      |     Original     |   w option    |     W option      |     I option    |
      |   a := baaa      |a     := baaa  |   a      := baaa  |   a     := baaa |
      | caaaa := deeee   |caaaa := deeee | caaaa    := deeee |   caaaa := deeee|
      |       ee := f    |ee    := f     |       ee := f     |   ee    := f    |

	The original has at least one leading white space on every line.
	Using Align with w eliminated each line's leading white space.
	Using Align with W preserved  each line's leading white space.
	Using Align with I applied the first line's leading white space
	                   (three spaces) to each line.

	------						alignctrl-l
	lrc-+:	FIELD JUSTIFICATION			alignctrl-r {{{3
	------						alignctrl-c

	With "lrc", the fields will be left-justified, right-justified, or
	centered as indicated by the justification specifiers (lrc).  The
	"lrc" options are re-used by cycling through them as needed:

		l   means llllll....
		r   means rrrrrr....
		lr  means lrlrlr....
		llr means llrllr....

     Example: Justification options: Align =
     |  Original  |  AlignCtrl l      | AlignCtrl r       | AlignCtrl lr      |
     | a=bb=ccc=1 |a   = bb  = ccc = 1|  a =  bb = ccc = 1|a   =  bb = ccc = 1|
     | ccc=a=bb=2 |ccc = a   = bb  = 2|ccc =   a =  bb = 2|ccc =   a = bb  = 2|
     | dd=eee=f=3 |dd  = eee = f   = 3| dd = eee =   f = 3|dd  = eee = f   = 3|
     | Alignment  |l     l     l     l|  r     r     r   r|l       r   l     r|

		AlignCtrl l : The = separator is repeatedly re-used, as the
			      cycle only consists of one character (the "l").
			      Every time left-justification is used for fields.
		AlignCtrl r : The = separator is repeatedly re-used, as the
			      cycle only consists of one character (the "r").
			      Every time right-justification is used for fields
		AlignCtrl lr: Again, the "=" separator is repeatedly re-used,
			      but the fields are justified alternately between
			      left and right.

	Even more separator control is available!  With "-+:":

	    - : skip treating the separator as a separator.    alignctrl--
	    + : repeat use of the last "lrc" justification     alignctrl-+
	    : : treat the rest of the line as a single field   alignctrl-:
	    * : like -, but only if g:AlignSkip() returns true alignctrl-star
	        (see alignctrl-alignskip)

     Example: More justification options:  Align =
     |  Original  |  AlignCtrl -l | AlignCtrl rl+      | AlignCtrl l:  |
     | a=bb=ccc=1 |a=bb   = ccc=1 |  a = bb  = ccc = 1 |a   = bb=ccc=1 |
     | ccc=a=bb=2 |ccc=a  = bb=2  |ccc = a   = bb  = 2 |ccc = a=bb=2   |
     | dd=eee=f=3 |dd=eee = f=3   | dd = eee = f   = 3 |dd  = eee=f=3  |
     | Alignment  |l        l     |  r   l     l     l |l     l        |

	In the first example in "More justification options":

	  The first "=" separator is skipped by the "-" specification,
	  and so "a=bb", "ccc=a", and "dd=eee" are considered as single fields.

	  The next "=" separator has its (left side) field left-justified.
	  Due to the cyclic nature of separator patterns, the "-l"
	  specification is equivalent to "-l-l-l ...".

	  Hence the next specification is a "skip", so "ccc=1", etc are fields.

	In the second example in "More justification options":

	  The first field is right-justified, the second field is left
	  justified, and all remaining fields repeat the last justification
	  command (ie. they are left justified, too).

	  Hence rl+ is equivalent to         rlllllllll ...
	  (whereas plain rl is equivalent to rlrlrlrlrl ... ).

	In the third example in "More justification options":

	  The text following the first separator is treated as a single field.

	Thus using the - and : operators one can apply justification to a
	single separator.

	ex. 1st separator only:    AlignCtrl l:
	    2nd separator only:    AlignCtrl -l:
	    3rd separator only:    AlignCtrl --l:

        Align Skip Control				alignctrl-alignskip

	The separator control '*' permits a function to decide whether or
	not a character which matches the current separator pattern should
	instead be skipped.

	1. Define a function; example:

	    fun! AlignSkipString(lineno,indx)
	      let synid   = synID(a:lineno,a:indx+1,1)
	      let synname = synIDattr(synIDtrans(synid),"name")
	      let ret= (synname == "String")? 1 : 0
	      return ret

	  Input: lineno: current line number
	         indx  : index to character; leftmost character
		         in the line has an indx of 0 (like strpart())
	  Output: 0    : if separator is ok
	          1    : skip separator like it was a '-'

	2. Set up g:AlignSkip as a function reference (see Funcref):

	   let g:AlignSkip= function("AlignSkipString")

	3. Use * as a separator control where a separator potentially should
	   be skipped over.

	---						     alignctrl-=
	=C	CYCLIC VS ALL-ACTIVE SEPARATORS		     alignctrl-C {{{3

	The separators themselves may be considered as equivalent and
	simultaneously active ("=") or sequentially cycled through ("C").
	Separators are regular expressions (regexp) and are specified as the
	second, third, etc arguments.  When the separator patterns are
	equivalent and simultaneously active, there will be one pattern

		AlignCtrl ... pat1 pat2 pat3
	(ie. pat1 -or- pat2 -or- pat3; see /bar)

	Each separator pattern is thus equivalent and simultaneously active.
	The cyclic separator AlignCtrl option stores a list of patterns, only
	one of which is active for each field at a time.

	Example: Equivalent/Simultaneously-Active vs Cyclic Separators
 |   Original  | AlignCtrl = = + -| AlignCtrl = =       | AlignCtrl C = + -    |
 |a = b + c - d|a = b + c - d     |a = b + c - d        |a = b         + c - d |
 |x = y = z + 2|x = y = z + 2     |x = y         = z + 2|x = y = z     + 2     |
 |w = s - t = 0|w = s - t = 0     |w = s - t     = 0    |w = s - t = 0         |

	The original is initially aligned with all operators (=+-) being
	considered as equivalent and simultaneously active field separators.
	Thus the "AlignCtrl = = + -" example shows no change.

	The second example only accepts the '=' as a field separator;
	consequently "b + c - d" is now a single field.

	The third example illustrates cyclic field separators and is analyzed
	in the following illustration:

	field1 separator field2    separator field3 separator field4
	   a      =      b             +       c        -       d
	   x      =      y = z         +       2
	   w      =      s - t = 0

	The word "cyclic" is used because the patterns form a cycle of use; in
	the above case, its = + - = + - = + - = + -...

	Example: Cyclic separators
		Label : this is some text discussing ":"s | ex. abc:def:ghi
		Label : this is some text with a ":" in it | ex. abc:def

	  apply AlignCtrl lWC : | |
	        (select lines)Align
                Label : this is some text discussing ":"s  | ex. abc:def:ghi
                Label : this is some text with a ":" in it | ex. abcd:efg

	In the current example,
	  : is the first separator        So the first ":"s are aligned
	  | is the second separator       but subsequent ":"s are not.
	  | is the third separator        The "|"s are aligned, too.
	  : is the fourth separator       Since there aren't two bars,
	  | is the fifth separator        the subsequent potential cycles
	  | is the sixth separator        don't appear.

	In this case it would probably have been a better idea to have used
		AlignCtrl WCl: : |
	as that alignment control would guarantee that no more cycling
	would be used after the vertical bar.

	Example: Cyclic separators

		a| b&c | (d|e) & f-g-h
		aa| bb&cc | (dd|ee) & ff-gg-hh
		aaa| bbb&ccc | (ddd|eee) & fff-ggg-hhh

	    AlignCtrl C | | & -
		a   | b&c     | (d|e)     & f   - g-h
		aa  | bb&cc   | (dd|ee)   & ff  - gg-hh
		aaa | bbb&ccc | (ddd|eee) & fff - ggg-hhh

	In this example,
	the first and second separators are "|",
	the third            separator  is  "&", and
	the fourth           separator  is  "-",

	the fifth and sixth  separators are "|",
	the seventh          separator  is  "&", and
	the eighth           separator  is  "-", etc.

	Thus the first "&"s are (not yet) separators, and hence are treated as
	part of the field.  Ignoring white space for the moment, the AlignCtrl
	shown here means that Align will work with

	field | field | field & field - field | field | field & field - ...

	---						alignctrl-<
	<>|	SEPARATOR JUSTIFICATION			alignctrl-> {{{3
	---						alignctrl-|

	Separators may be of differing lengths as shown in the example below.
	Hence they too may be justified left, right, or centered.
	Furthermore, separator justification specifications are cyclic:

		<  means <<<<<...    justify separator(s) to the left
		>  means >>>>>...    justify separator(s) to the right
		|  means |||||...    center separator(s)

	Example: Separator Justification: Align -\+
				|    Original     |
				| a - bbb - c     |
				| aa -- bb -- ccc |
				| aaa --- b --- cc|
	|     AlignCtrl <     |     AlignCtrl >     |     AlignCtrl |     |
	| a   -   bbb -   c   | a     - bbb   - c   | a    -  bbb  -  c   |
	| aa  --  bb  --  ccc | aa   -- bb   -- ccc | aa  --  bb  --  ccc |
	| aaa --- b   --- cc  | aaa --- b   --- cc  | aaa --- b   --- cc  |

	---						alignctrl-g
	gv	SELECTIVE APPLICATION			alignctrl-v {{{3

	These two options provide a way to select (g) or to deselect (v) lines
	based on a pattern.  Ideally :g/pat/Align  would work; unfortunately
	it results in Align#Align() being called on each line satisfying the
	pattern separately.

		AlignCtrl g pattern

	Align will only consider those lines which have the given pattern.

		AlignCtrl v pattern

	Align will only consider those lines without the given pattern.  As an
	example of use, consider the following example:

				           :AlignCtrl v ^\s*/\*
	  Original          :Align =       :Align =
	|one= 2;         |one     = 2;      |one   = 2;      |
	|three= 4;       |three   = 4;      |three = 4;      |
	|/* skip=this */ |/* skip = this */ |/* skip=this */ |
	|five= 6;        |five    = 6;      |five  = 6;      |

	The first "Align =" aligned with all "="s, including the one in the
	"/* skip=this */" comment.

	The second "Align =" had a AlignCtrl v-pattern which caused it to skip
	(ignore) the "/* skip=this */" line when aligning.

	To remove AlignCtrl's g and v patterns, use (as appropriate)

		AlignCtrl g
		AlignCtrl v

	To see what g/v patterns are currently active, just use the reporting
	capability of an unadorned call to AlignCtrl:


	 m	MAP SUPPORT				alignctrl-m {{{3

	This option primarily supports the development of maps.  The
	Align#AlignCtrl() call will first do an Align#AlignPush() (ie. retain
	current alignment control settings).  The next Align#Align() will, in
	addition to its alignment job, finish up with an Align#AlignPop().
	Thus the Align#AlignCtrl settings that follow the "m" are only
	temporarily in effect for just the next Align#Align().

	p###						alignctrl-p
	P###	PADDING					alignctrl-P {{{3

	These two options control pre-padding and post-padding with blanks
	about the separator.  One may pad separators with zero to nine spaces;
	the padding number(s) is/are treated as a cyclic parameter.  Thus one
	may specify padding separately for each field or re-use a padding

	Example:          AlignCtrl p102P0
	| Original| a=b=c=d=e=f=g=h=1                |
        | Align = | a =b=c  =d =e=f  =g =h=1         |
	| prepad  |   1 0   2  1 0   2  1 0          |

	This example will cause Align to:

		pre-pad the first  "=" with a single blank,
		pre-pad the second "=" with no blanks,
		pre-pad the third  "=" with two blanks,
		pre-pad the fourth "=" with a single blank,
		pre-pad the fifth  "=" with no blanks,
		pre-pad the sixth  "=" with two blanks,

	---------------				alignctrl-settings
	No option given		DISPLAY STATUS	alignctrl-		{{{3
	---------------				alignctrl-no-option

	AlignCtrl, when called with no arguments, will display the current
	alignment control settings.  A typical display is shown below:

		AlignCtrl<=> qty=1 AlignStyle<l> Padding<1|1>

	Interpreting, this means that the separator patterns are all
	equivalent; in this case, there's only one (qty=1).  Fields will be
	padded on the right with spaces (left justification), and separators
	will be padded on each side with a single space.

	To change one of these items, see:

	  AlignStyle.....alignctrl-- alignctrl-+ alignctrl-: alignctrl-c
	  Padding........alignctrl-p alignctrl-P

	One may get a string which can be fed back into AlignCtrl:

		:let alignctrl= Align#AlignCtrl()

	This form will put a string describing the current AlignCtrl options,
	except for the "g" and "v" patterns, into a variable.  The
	Align#AlignCtrl() function will still echo its settings, however.  One
	can feed any non-supported "option" to AlignCtrl() to prevent this,

		:let alignctrl= Align#AlignCtrl("d")

ALIGNMENT CONTROL INITIALIZATION	alignctrl-init alignctrl-initialization {{{2

	If you'd like to have your own default AlignCtrl, you'll be wanting to
	put it in a file such as:


	Anything in that file would be sourced at startup, but after your
	.vimrc and after $HOME/.vim/plugin/AlignPlugin.vim; hence, :Align
	and :AlignCtrl will then be defined.

ALIGNMENT						:Align align-align {{{2

	Once the alignment control has been determined, the user specifies a
	range of lines for the Align command/function to do its thing.
	Alignment is often done on a line-range basis, but one may also
	restrict alignment to a visual block using ctrl-v.  For any visual
	mode, one types the colon (:) and then "Align".  One may, of course,
	specify a range of lines:

		:[range]Align [list-of-separators]

	where the :range is the usual Vim-powered set of possibilities; the
	list of separators is the same as the AlignCtrl capability.  There is
	only one list of separators, but either AlignCtrl or Align can be used
	to specify that list.

	An alternative form of the Align command can handle both alignment
	control and the separator list:

		:[range]Align! [alignment-control-string] [list-of-separators]

	The alignment control string will be applied only for this particular
	application of Align (it uses alignctrl-m).  The "g pattern" and
	"v pattern" alignment controls (see alignctrl-g and alignctrl-v)
	are also available via this form of the Align command.

	Align makes two passes over the text to be aligned.  The first pass
	determines how many fields there are and determines the maximum sizes
	of each field; these sizes are then stored in a vector.  The second
	pass pads the field (left/right/centered as specified) to bring its
	length up to the maximum size of the field.  Then the separator and
	its AlignCtrl-specified padding is appended.

		 During pass 1
		 | For all fields in the current line
		 || Determine current separator
		 || Examine field specified by current separator
		 || Determine length of field and save if largest thus far
		 Initialize newline based on initial whitespace option (wWI)
		 During pass 2
		 | For all fields in current line
		 || Determine current separator
		 || Extract field specified by current separator
		 || Prepend/append padding as specified by AlignCtrl
		 || (right/left/center)-justify to fit field into max-size field
		 || Append separator with AlignCtrl-specified separator padding
		 || Delete current line, install newly aligned line

	The g and v AlignCtrl patterns cause the passes not to consider lines
	for alignment, either by requiring that the g-pattern be present or
	that the v-pattern not be present.

	The whitespace on either side of a separator is ignored.

4. Alignment Maps				alignmaps align-maps {{{1

	There are a number of maps provided in the AlignMaps plugin which
	depend upon the Align plugin.  The maps provided by AlignMaps
	typically start with a leading "t" (for the older "textab" program
	which Align supercedes) or with an "a" for the more complicated
	alignment maps.

	The AlignMaps plugin, although provided in the vimball containing
	Align.vim, is really a separate plugin (Align doesn't depend on
	AlignMaps).  Consequently, if you'd rather not have AlignMaps's
	mappings, just use the :AlignMapsClean command to remove its
	components.  The :AlignMapsClean command does not remove any maps
	generated by AlignMaps in the current instance of vim.

	The maps are shown below with a leading backslash (\).  However, the
	actual maps use the <Leader> construct (see mapleader), so the maps'
	leading kick-off character is easily customized.

	Furthermore, all the maps specified by the AlignMaps plugin use the
	<Plug> construct (see <Plug>and usr_41.txt).  Hence, if one wishes
	to override the mapping(s) entirely, one may do that, too.  As an
		map <Leader>ACOM	<Plug>AM_acom
	would have \ACOM do
	what \acom previously did (assuming that the mapleader has been left
	at its default value of a backslash).

	  \a,   : useful for breaking up comma-separated
	          declarations prior to \adec			alignmap-a,
	  \a(   : aligns ( and , (useful for prototypes)        alignmap-a(
	  \a?   : aligns (...)? ...:... expressions on ? and :	alignmap-a?
	  \a<   : aligns << and >> for c++			alignmap-a<
	  \a=   : aligns := assignments   			alignmap-a=
	  \abox : draw a C-style comment box around text lines	alignmap-abox
	  \acom : useful for aligning comments			alignmap-acom
	  \adcom: useful for aligning comments in declarations  alignmap-adcom
	  \anum : useful for aligning numbers 			alignmap-anum
	          NOTE: For the visual-mode use of \anum, <vis.vim> is needed!
	  \aenum: align a European-style number			alignmap-aenum
	  \aunum: align a USA-style number			alignmap-anum
	  \adec : useful for aligning declarations		alignmap-adec
	  \adef : useful for aligning definitions		alignmap-adef
	  \afnc : useful for aligning ansi-c style functions'
	          argument lists				alignmap-afnc
	  \adcom: a variant of \acom, restricted to comment     alignmap-adcom
	          containing lines only, but also only for
		  those which don't begin with a comment.
		  Good for certain declaration styles.
	  \aocom: a variant of \acom, restricted to comment     alignmap-aocom
	          containing lines only
	  \tab  : align a table based on tabs			alignmap-tab
	          (converts to spaces)
	  \tml  : useful for aligning the trailing backslashes	alignmap-tml
	          used to continue lines (shell programming, etc)
	  \tbar : useful for aligning |s			alignmap-tbar
	  \tsp  : use Align to make a table separated by blanks	alignmap-tsp
	          (left justified)
	  \ts,  : like \t, but swaps whitespace on the right of alignmap-ts,
	          the commas to their left
	  \ts:  : like \t: but swaps whitespace on the right of alignmap-ts:
	          the colons to their left
	  \ts<  : like \t< but swaps whitespace on the right of alignmap-ts<
	          the less-than signs to their left
	  \ts=  : like \t= but swaps whitespace on the right of alignmap-ts=
	          the equals signs to their left
	  \Tsp  : use Align to make a table separated by blanks	alignmap-Tsp
	          (right justified)
	  \tsq  : use Align to make a table separated by blanks	alignmap-tsq
	          (left justified) -- "strings" are not split up
	  \tt   : useful for aligning LaTeX tabular tables	alignmap-tt
	  \Htd  : tabularizes html tables:			alignmap-Htd
	          <TR><TD> ...field... </TD><TD> ...field... </TD></TR>

		  alignmap-t| alignmap-t# alignmap-t, alignmap-t:
		  alignmap-t; alignmap-t< alignmap-t? alignmap-t~
	  \tx   : make a left-justified  alignment on
	          character "x" where "x" is: ,:<=@|#		alignmap-t=
	  \Tbar : useful for aligning |s			alignmap-Tbar
	  \Tx   : make a right-justified alignment on
	          character "x" where "x" is: ,:<=@#		alignmap-T=
	  \m=   : like \t= but aligns with %... style comments

	The leading backslash is actually <leader> (see mapleader to learn
	how to customize the leader to be whatever you like).  These maps use
	the <Align.vim> package and are defined in the <AlignMaps.vim> file.
	Although the maps use AlignCtrl options, they typically use the "m"
	option which pushes the options (AlignPush).  The associated Align
	call which follows will then AlignPop the user's original options

	In the examples below, one may select the text with a "ma" at the
	first line, move to the last line, then execute the map.

	Alternatively, one may select the text with the "V" visual mode

	If you want to use visual-block mode (ctrl-v), I suggest using
	an AlignMap with the vis.vim plugin, available at either

	 devel :

	Use it with commands such as

		ctrl-v (move)
		:B norm \alignmap_sequence

	One may use the mark-and-move style (ma, move, use the menu) or
	the visual mode style (use the V visual mode, move, then select
	the alignment map with menu selection).  The alignment map menu
	items are under DrChip.AlignMaps .

	One may even change the top level menu name to whatever is wished; by
	default, its
		let g:DrChipTopLvlMenu= "DrChip."
	If you set the variable to the empty string (""), then no menu items
	will be produced.  Of course, one must have a vim with +menu, the gui
	must be running, and 'go' must have the menu bar suboption (ie. m
	must be included).

	For those complex alignment maps which do alignment on constructs
	(e.g. \acom, \adec, etc), a series of substitutes is used to insert
	"@" symbols in appropriate locations.  Align#Align() is then used to
	do alignment directly on "@"s; then it is followed by further
	substitutes to do clean-up.  However, the maps \WS and \WE, used by
	every map supported by AlignMaps, protect any original embedded "@"
	symbols by first converting them to <DEL> characters, doing the
	requested job, and then converting them back.

	    \WS  calls AlignMaps#WrapperStart()
	    \WE  calls AlignMaps#WrapperEnd()

	Alignment Map Examples: \a,			alignmap-a, {{{3

	Original: illustrates comma-separated declaration splitting:
		int a,b,c;
		struct ABC_str abc,def;

		int a;
		int b;
		int c;
		struct ABC_str abc;
		struct ABC_str def;

	Alignment Map Examples: \a?			alignmap-a? {{{3

	Original: illustrates ()?: aligning
		  (x == ABC)? "abc" :
		  (x == DEFG)? "defg" :
		  (x == HIJKL)? "hijkl" : "???");

	Becomes:  select "(x == ..." lines, then \a?
		  (x == ABC)?   "abc"   :
		  (x == DEFG)?  "defg"  :
		  (x == HIJKL)? "hijkl" : "???");

	Alignment Map Examples: \a<			alignmap-a< {{{3

	Original: illustrating aligning of << and >>
		cin << x;
		cin      << y;
		cout << "this is x=" << x;
		cout << "but y=" << y << "is not";

	Becomes:  select "(x == ..." lines, then \a<
		cin  << x;
		cin  << y;
		cout << "this is x=" << x;
		cout << "but y="     << y  << "is not";

	Alignment Map Examples: \a=			alignmap-a= {{{3

	Original: illustrates how to align := assignments

	Bcomes: select the three assignment lines, then \a:=
		aa  := bb  := cc  := 1;
		a   := b   := c   := 1;
		aaa := bbb := ccc := 1;

	Alignment Map Examples: \abox			alignmap-abox {{{3

	Original: illustrates how to comment-box some text
		This is some plain text
		which will
		soon be surrounded by a
		comment box.

	Becomes:  Select "" with ctrl-v, press \abox
		 * This is some plain text *
		 * which will              *
		 * soon be surrounded by a *
		 * comment box.            *

	Alignment Map Examples: \acom			alignmap-acom {{{3

	Original: illustrates aligning C-style comments (works for //, too)
		if(itworks) { /* this */
			then= dothis; /* is a */
			} /* set of three comments */

	Becomes: Select the three lines, press \acom
	        if(itworks) {         /* this                  */
	                then= dothis; /* is a                  */
	                }             /* set of three comments */

	Also see alignmap-aocom

	---------------------------			alignmap-aenum
	Alignment Map Examples: \anum			alignmap-anum {{{3

	First, note that the behavior of the \anum map depends on the existence
	of either the vim variable
	when AlignMaps is loaded.  One may also use
	to align numbers which include 1000s separators ("," for usa, "." for
	euro).  The latter two variable/settings don't cause AlignMaps to
	insert 1000s separators; they simply cause AlignMaps to treat them the
	same as digits.

	Essentially, "usa" numbers use "."s and "euro" numbers use ","s to
	separate the integer from the fractional portion of a number.
	"Usa" numbers are default.

	Original: illustrates how to get numbers lined up
		 -1.234 .5678 -.901e-4
		 1.234 5.678 9.01e-4
		 12.34 56.78 90.1e-4
		 123.4 567.8 901.e-4

	Becomes: Go to first line, ma.  Go to last line, press \anum
		  -1.234    .5678   -.901e-4
		   1.234   5.678    9.01e-4
		  12.34   56.78    90.1e-4
		 123.4   567.8    901.e-4

		 | -1.234 .5678 -.901e-4 |
		 | 1.234 5.678 9.01e-4   |
		 | 12.34 56.78 90.1e-4   |
		 | 123.4 567.8 901.e-4   |

	Becomes: Select the numbers with ctrl-v (visual-block mode),
	         press \anum
	         |  -1.234    .5678   -.901e-4 |
	         |   1.234   5.678    9.01e-4  |
	         |  12.34   56.78    90.1e-4   |
	         | 123.4   567.8    901.e-4    |

		 -1,234 ,5678 -,901e-4
		 1,234 5,678 9,01e-4
		 12,34 56,78 90,1e-4
		 123,4 567,8 901,e-4

	Becomes: (assuming g:alignmaps_euronumber exists)
	Go to first line, ma.  Go to last line, press \anum
		  -1,234    ,5678   -,901e-4
		   1,234   5,678    9,01e-4
		  12,34   56,78    90,1e-4
		 123,4   567,8    901,e-4

	In addition:
	  \aenum is provided to support European-style numbers
	  \aunum is provided to support USA-style numbers

	g:alignmaps_usanumber g:alignmaps_euronumber
	One may get \aenum behavior for \anum by putting
	  let g:alignmaps_euronumber= 1
	or \aunum behavior for \anum by putting
	  let g:alignmaps_usanumber= 1
	in one's <.vimrc>.

	g:alignmaps_usanumber1000 g:alignmaps_euronumber1000
	Like g:alignmaps_usanumber and g:alignmaps_euronumber,
	one may specify \aenum behavior for \anum by putting
	  let g:alignmaps_euronumber1000= 1
	or \aunum behavior for \anum by putting
	  let g:alignmaps_usanumber1000= 1
	in one's <.vimrc>.
	In addition, these maps will permit usa: "," and euro: "." separators
	as part of the numbers (ie. for usa: 1,002,003  for euro: 1.002.003).

	Alignment Map Examples: \ascom			alignmap-ascom {{{3

		/* A Title */
		int x; /* this is a comment */
		int yzw; /* this is another comment*/

	Becomes: Select the three lines, press \ascom
	        /* A Title */
	        int x;   /* this is a comment       */
	        int yzw; /* this is another comment */

	Alignment Map Examples: \adec			alignmap-adec {{{3

	Original: illustrates how to clean up C/C++ declarations
		int     a;
		float   b;
		double *c=NULL;
		char x[5];
		struct  abc_str abc;
		struct  abc_str *pabc;
		int     a;              /* a   */
		float   b;              /* b   */
		double *c=NULL;              /* b   */
		char x[5]; /* x[5] */
		struct  abc_str abc;    /* abc */
		struct  abc_str *pabc;    /* pabc */
		static   int     a;              /* a   */
		static   float   b;              /* b   */
		static   double *c=NULL;              /* b   */
		static   char x[5]; /* x[5] */
		static   struct  abc_str abc;    /* abc */
		static   struct  abc_str *pabc;    /* pabc */

	Becomes: Select the declarations text, then \adec
		int                    a;
		float                  b;
		double                *c    = NULL;
		char                   x[5];
		struct abc_str         abc;
		struct abc_str        *pabc;
		int                    a;           /* a    */
		float                  b;           /* b    */
		double                *c    = NULL; /* b    */
		char                   x[5];        /* x[5] */
		struct abc_str         abc;         /* abc  */
		struct abc_str        *pabc;        /* pabc */
		static int             a;           /* a    */
		static float           b;           /* b    */
		static double         *c    = NULL; /* b    */
		static char            x[5];        /* x[5] */
		static struct abc_str  abc;         /* abc  */
		static struct abc_str *pabc;        /* pabc */

	Alignment Map Examples: \adef			alignmap-adef {{{3

	Original: illustrates how to line up #def'initions
		#define ONE 1
		#define TWO 22
		#define THREE 333
		#define FOUR 4444

	Becomes: Select four definition lines, apply \adef
	#	 define ONE   1
	#	 define TWO   22
	#	 define THREE 333
	#	 define FOUR  4444

	Alignment Map Examples: \afnc			alignmap-afnc {{{3

	This map is an exception to the usual selection rules.
	It uses "]]" to find the function body's leading "{".
	Just put the cursor anywhere in the function arguments and
	the entire function declaration should be processed.

	Because "]]" looks for that "{" in the first column, the
	"original" and "becomes" examples are in the first column,

	Original: illustrates lining up ansi-c style function definitions
	int f(
	  struct abc_str ***a, /* one */
	  long *b, /* two */
	  int c) /* three */

	Becomes: put cursor anywhere before the '{', press \afnc
	int f(
	  struct abc_str ***a,	/* one   */
	  long             *b,	/* two   */
	  int               c)	/* three */

	Alignment Map Examples: \adcom			alignmap-adcom {{{3

	Original: illustrates aligning comments that don't begin
		lines (optionally after some whitespace).
		struct {
			/* this is a test */
			int x; /* of how */
			double y; /* to use adcom */

	Becomes: Select the inside lines of the structure,
		then press \adcom.  The comment-only
		line is ignored but the other two comments
		get aligned.
		struct {
                        /* this is a test */
                        int x;    /* of how       */
                        double y; /* to use adcom */

	Alignment Map Examples: \aocom			alignmap-aocom {{{3

	Original: illustrates how to align C-style comments (works for //, too)
	          but restricted only to aligning with those lines containing
		  comments.  See the difference from \acom (alignmap-acom).
		if(itworks) { /* this comment */
			then= dothis;
			} /* only appears on two lines */

	Becomes: Select the three lines, press \aocom
                if(itworks) { /* this comment              */
                        then= dothis;
                        }     /* only appears on two lines */

	Also see alignmap-acom

	---------------------------			alignmap-Tsp
	Alignment Map Examples: \tsp			alignmap-tsp {{{3

	Normally Align can't use white spaces for field separators as such
	characters are ignored surrounding field separators.  The \tsp and
	\Tsp maps get around this limitation.

	 one two three four five
	 six seven eight nine ten
	 eleven twelve thirteen fourteen fifteen

	Becomes: Select the lines, \tsp
	 one    two    three    four     five
	 six    seven  eight    nine     ten
	 eleven twelve thirteen fourteen fifteen

	Becomes: Select the lines, \Tsp
	    one    two    three     four    five
	    six  seven    eight     nine     ten
	 eleven twelve thirteen fourteen fifteen

	Alignment Map Examples: \tsq			alignmap-tsq {{{3

	The \tsp map is useful for aligning tables based on white space,
	but sometimes one wants double-quoted strings to act as a single
	object in spite of embedded spaces.  The \tsq map was invented
	to support this. (thanks to Leif Wickland)

	 "one two" three
	 four "five six"

	Becomes: Select the lines, \tsq
	 "one two" three
	 four      "five six"

	Alignment Map Examples: \tt			alignmap-tt {{{3

	Original: illustrates aligning a LaTex Table
	   one&two&three\\ \hline

	Becomes: Select the three lines inside the table
	(ie. one..,four..,seven..) and press \tt
	   one   & two   & three \\ \hline
	   four  & five  & six   \\
	   seven & eight & nine  \\

	Alignment Map Examples: \tml			alignmap-tml {{{3

        Original:  illustrates aligning multi-line continuation marks
	one \
	two three \
	four five six \
	seven \\ \
	eight \nine \
	ten \

        one           \
        two three     \
        four five six \
        seven \\      \
        eight \nine   \
        ten           \

	Alignment Map Examples: \t=			alignmap-t= {{{3

	Original: illustrates left-justified aligning of =

	Becomes: Select the three equations, press \t=
		aa  = bb  = cc  = 1; /* one   */
		a   = b   = c   = 1; /* two   */
		aaa = bbb = ccc = 1; /* three */

	Alignment Map Examples: \T=			alignmap-T= {{{3

	Original: illustrates right-justified aligning of =
		aa=bb=cc=1; /* one */
		a=b=c=1; /* two */
		aaa=bbb=ccc=1; /* three */

	Becomes: Select the three equations, press \T=
                 aa =  bb =  cc = 1; /* one   */
                  a =   b =   c = 1; /* two   */
                aaa = bbb = ccc = 1; /* three */

	Alignment Map Examples: \Htd			alignmap-Htd {{{3

	Original: for aligning tables with html
	  <TR><TD>...field one...</TD><TD>...field two...</TD></TR>
	  <TR><TD>...field three...</TD><TD>...field four...</TD></TR>

	Becomes: Select <TR>... lines, press \Htd
	  <TR><TD> ...field one...   </TD><TD> ...field two...  </TD></TR>
	  <TR><TD> ...field three... </TD><TD> ...field four... </TD></TR>

4. Alignment Tools' History				align-history {{{1

ALIGN HISTORY								{{{2
	v40	Oct 21, 2016	* (Taylor Venable) 'paste', when set, saves a
				  number of options inside vim itself.  When
				  'paste' is reset, those options are then
				  restored.  Must set/reset paste with this
				  effect in mind.
				  (in particular, this affects Align's
				  sequence in temporarily setting and
				  restoring 'et' and 'paste')
	v39	Sep 05, 2013	* strdisplaywidth() now used by default in
	v38	Mar 18, 2013	* (Gary Johnson) pointed out that changing
				  cedit to <Esc> caused problems with visincr;
				  the cedit setting is now bypassed in Align, too.
	v37	Nov 29, 2012	* (Kim Jang-hwan) reported that with g:Align_xstrlen
				  set to 3 that the cursor was moved (linewise)
				  after invocation.  Fixed.
		Jan 07, 2013	* now has visual mode mappings to accompany all
				  normal mode mappings (use V to invoke)
	v36	May 20, 2009	* Previously, the "W" AlignCtrl setting, intended
				  to retain initial white space, did so by convert-
				  ing any leading tabs into an equivalent quantity
				  of blanks (using the current tabstop setting).
				  Align will now retain leading tabs.
		Nov 24, 2009	* QArgSplitter() used split(), intending to split
				  on white space only.  However, the \tab map
				  uses ctrl-o as a separator instead of tabs; the
				  split() function treated the ctrl-o as a whitespace
				  character, too.  Solution: give split() an explicit
				  pattern matching blanks and tabs, only.  \tab now
				  works again!
		Jun 29, 2010	* included g:AlignSkip and alignctrl-star support
		May 10, 2011	* if the range is only one line, then Align will
				  automatically grow the range to accommodate all
				  lines containing the first separator pattern
				  surrounding the current line.
		Aug 05, 2011	* g:Align_xstrlen usage extended to permit users to
				  specify a function by name which computes string
		Oct 27, 2011	* (reported by Fco Javier) reported a problem with
				  the default s:Strlen() result; there was a missing
				  "let".  Fixed.
		Nov 10, 2011	* (Lewis Thompson) Align was doing "set noet" when
				  it should've been doing "setlocal noet".
		Dec 22, 2011	* modifed s:Strlen() to use strdisplaywidth() when
				  g:Align_xstrlen is zero.
	v35	Nov 02, 2008	* g:loaded_AlignPlugin testing to prevent re-loading
		Nov 19, 2008	* new sanity check for an AlignStyle of just ":"
		Jan 08, 2009	* save&restore of 'mod' now done with local
	v34	Jul 08, 2008	* using :AlignCtrl before entering any alignment
				  control commands was causing an error.
	v33	Sep 20, 2007	* s:Strlen() introduced to support various ways
				  used to represent characters and their effects
				  on string lengths.  See align-strlen.
				* Align now accepts "..." -- so it can accept
				  whitespace as separators.
	v32	Aug 18, 2007	* uses <q-args> instead of <f-args> plus a
				  custom argument splitter to allow patterns with
				  backslashes to slide in unaltered.
	v31	Aug 06, 2007	* :[range]Align! [AlignCtrl settings] pattern(s)
	v30	Feb 12, 2007	* now uses setline()
	v29	Jan 18, 2006	* cecutil updated to use keepjumps
		Feb 23, 2006	* Align now converted to vim 7.0 style using
				  auto-loading functions.
	v28	Aug 17, 2005	* report option workaround
		Oct 24, 2005	* AlignCtrl l:  wasn't behaving as expected; fixed
	v27	Apr 15, 2005	* cpo workaround
				  ignorecase workaround
	v26	Aug 20, 2004	* loaded_align now also indicates version number
				  GetLatestVimScripts :AutoInstall: now supported
	v25	Jul 27, 2004	* For debugging, uses Dfunc(), Dret(), and Decho()
	v24	Mar 03, 2004	* (should've done this earlier!) visualmode(1)
				  not supported until v6.2, now Align will avoid
				  calling it for earlier versions.  Visualmode
				  clearing won't take place then, of course.
	v23	Oct 07, 2003	* Included Leif Wickland's ReplaceQuotedSpaces()
				  function which supports \tsq
	v22	Jan 29, 2003	* Now requires 6.1.308 or later to clear visualmode()
	v21	Jan 10, 2003	* BugFix: similar problem to #19; new code
				  bypasses "norm! v\<Esc>" until initialization
				  is over.
	v20	Dec 30, 2002	* BugFix: more on "unable to highlight" fixed
	v19	Nov 21, 2002	* BugFix: some terminals gave an "unable to highlight"
				  message at startup; Hari Krishna Dara tracked it
				  down; a silent! now included to prevent noise.
	v18	Nov 04, 2002	* BugFix: re-enabled anti-repeated-loading
	v17	Nov 04, 2002	* BugFix: forgot to have AlignPush() push s:AlignSep
				  AlignCtrl now clears visual-block mode when used so
				  that Align won't try to use old visual-block
				  selection marks '< '>
	v16	Sep 18, 2002	* AlignCtrl <>| options implemented (separator
	v15	Aug 22, 2002	* bug fix: AlignCtrl's ":" now acts as a modifier of
				  the preceding alignment operator (lrc)
	v14	Aug 20, 2002	* bug fix: AlignCtrl default now keeps &ic unchanged
				  bug fix: Align, on end-field, wasn't using correct
				  alignop bug fix: Align, on end-field, was appending
	v13	Aug 19, 2002	* bug fix: zero-length g/v patterns are accepted
				  bug fix: always skip blank lines
				  bug fix: AlignCtrl default now also clears g and v
	v12	Aug 16, 2002	* moved keep_ic above zero-length pattern checks
				  added "AlignCtrl default"
				  fixed bug with last field getting separator spaces
				  at end line
	v11	Jul 08, 2002	* prevent separator patterns which match zero length
				  -+: included as additional alignment/justification
	v10	Jun 26, 2002	* =~# used instead of =~ (for matching case)
				  ignorecase option handled
	v09	Jun 25, 2002	* implemented cyclic padding

ALIGNMENT MAP HISTORY					alignmap-history {{{2
	v44	Mar 30, 2013	* (Ethan Mallove) removed a duplicate mapping for
				  afnc (alignmap-afnc)
		Jan 11, 2016	* having problems with \t| and \T|; couldn't
				  use the <Plug> notation to override these
				  maps.  Now using \tbar and \Tbar instead.
		Apr 11, 2016	* g:alignmaps_usanumber1000 and
				  g:alignmaps_euronumber1000 introduced
	v43	Nov 28, 2012	* changed a lot of maps to use nnoremap (instead
				  of map)
		Jan 07, 2013	*
	v42	Jan 06, 2010	* new maps for \anum, \aenum, \aunum
		Feb 16, 2010	* map for \t=, \T= now handles x++ = something;
				  for c, c++ correctly.
		Oct 29, 2010	* added a note on having one's own default
				  AlignCtrl (see alignctrl-init)
		Feb 22, 2011	* for menus, &go =~# used to insure correct case
		Jun 10, 2011	* :AlignMapsClean command provided to make it
				  easy for those who would prefer not to have
				  AlignMaps' maps not to have them.
	v41	Nov 02, 2008	* g:loaded_AlignMapsPlugin testing to prevent
				  re-loading installed
				* AlignMaps now use 0x0f (ctrl-p) for special
				  character substitutions (instead of 0xff).
				  Seems to avoid some problems with having to
				  use Strlen().
				* bug fixed with \ts,
				* new maps: \ts; \ts, \ts: \ts< \ts= \a(
	v40	Oct 21, 2008	* Modified AlignMaps so that its maps use <Plug>s
				  and <script>s.  \t@ and related maps have been
				  changed to call StdAlign() instead.  The
				  WrapperStart function now takes an argument and
				  handles being called via visual mode.  The
				  former nmaps and vmaps have thus been replaced
				  with a simple map.
		Oct 24, 2008	* broke AlignMaps into a plugin and autoload
				  pair of scripts.
	v39	Mar 06, 2008	* \t= only does /* ... */ aligning when in *.c
				*.cpp files.
	v38	Aug 18, 2007	* \tt altered so that it works with the new
				  use of <q-args> plus a custom argument
	v36	Sep 27, 2006	* AlignWrapperStart() now has tests that marks
				  y and z are not set
		May 15, 2007	* \anum and variants improved
	v35	Sep 01, 2006	* \t= and cousins used "`"s.  They now use \xff
				* \acom now works with doxygen style /// comments
				* <char-0xff> used in \t= \T= \w= and \m= instead
				  of backquotes.
	v34	Feb 23, 2006	* AlignMaps now converted to vim 7.0 style using
				  auto-loading functions.
	v33	Oct 12, 2005	* \ts, now uses P1 in its AlignCtrl call
	v32	Jun 28, 2005	* s:WrapperStart() changed to AlignWrapperStart()
				  s:WrapperEnd() changed to AlignWrapperEnd()
				  These changes let the AlignWrapper...()s to be
				  used outside of AlignMaps.vim
	v31	Feb 01, 2005	* \adcom included, with help
				* \a, now works across multiple lines with
				  different types
				* AlignMaps now uses <cecutil.vim> for its mark and
				  window-position saving and restoration
		Mar 04, 2005	* improved \a,
		Apr 06, 2005	* included \aenum, \aunum, and provided
				  g:alignmaps_{usa|euro]number} options
	v30	Aug 20, 2004	* * \a, : handles embedded assignments and does \adec
				* \acom  now can handle Doxygen-style comments
				* g:loaded_alignmaps now also indicates version
				* internal maps \WE and \WS are now re-entrant
	v29	Jul 27, 2004	* \tml aligns trailing multi-line single
				  backslashes (thanks to Raul Benavente!)
	v28	May 13, 2004	* \a, had problems with leading blanks; fixed!
	v27	Mar 31, 2004	* \T= was having problems with == and !=
				* Fixed more problems with \adec
	v26	Dec 09, 2003	* \ascom now also ignores lines without comments
				* \tt  \& now not matched
				* \a< handles both << and >>
	v25	Nov 14, 2003	* included \anum (aligns numbers with periods and
				  commas).  \anum also supported with ctrl-v mode.
				* \ts, \Ts, : (aligns on commas, then swaps leading
				  spaces with commas)
				* \adec ignores preprocessor lines and lines with
				  with comments-only
	v23	Sep 10, 2003	* Bugfix for \afnc - no longer overwrites marks y,z
				* fixed bug in \tsp, \tab, \Tsp, and \Tab - lines
				  containing backslashes were having their
				  backslashes removed.  Included Leif Wickland's
				  patch for \tsq.
				* \adef now ignores lines holding comments only
	v18	Aug 22, 2003	* \a< lines up C++'s << operators
				  saves/restores gdefault option (sets to nogd)
				  all b:..varname.. are now b:alignmaps_..varname..
	v17	Nov 04, 2002	* \afnc now handles // comments correctly and
				  commas within comments
	v16	Sep 10, 2002	* changed : to :silent! for \adec
	v15	Aug 27, 2002	* removed some <c-v>s
	v14	Aug 20, 2002	* \WS, \WE mostly moved to functions, marks y and z
				  now restored
	v11	Jul 08, 2002	* \abox bug fix
	 v9	Jun 25, 2002	* \abox now handles leading initial whitespace
				  various bugfixes to \afnc, \T=, etc

Modelines: {{{1