Feature: The IKI standard now supports bracket wrapping.

I wanted to avoid this and keep IKI as simple as possible.
My recent uses have shown that I must have some sort of word-separator support.

This is the simplest implementation that I can think of at this time.
The brackets do not get escaped, instead the IKI gets escaped.
If there is no closing brracket in the correct spot, then the first bracket is not part of the variable.
The brackets other than the opening at the front and the closing bracket at the end are allowed.

The vocabulary name never includes the open and close bracket.

The following shows the heart of the problem this feature solves:

Consider:
  - helloworld:"earth".

What if "world" is the variable name and hello is not supposed to be space separated?
With this featre, now the following is possible:
  - hello[world]:"earth"

Note that the following are not valid (that is to say these are not IKI variables):
  - hello[world:"earth"
  - heloworld]:"earth"
  - hello[[world]]:"earth"

diff --git a/specifications/iki.txt b/specifications/iki.txt
index 1d57f7eb93d9a0b75038ab538fc9c9e337e3d00d..73afcfcbe1346c2eb427b3c54fce8dd8f9bf850e 100644 (file)
--- a/specifications/iki.txt
+++ b/specifications/iki.txt
@@ -16,12 +16,17 @@ IKI Specifications:
   The vocabulary represents a list of allowed variable names that may also have specific contextual meaning defined by a given IKI specification.
   The variable name is considered the italic:"Object" and is also considered the vocabulary.
   The variable value is considered the italic:"Content".
+  The variable name may be wrapped by a single open bracket, character:"[" (unicode:"U+005B"), at the start and a single close bracket, character:"]" (unicode:"U+005D"), at the end.
+
+  The wrapping characters characters are not part of the variable name and must not be contained within a variable name.
+  The wrapping characters do not support escaping.
+  Both wrapping characters must be specified or neither.
 
   The IKI format will use code:"iki-0000" to represent an IKI with no explicitly defined vocabulary.
   Whereas code:"iki-0001" and beyond represent a specific IKI vocabulary.
 
-  A potential IKI variable name starts on word (or character:"_", character:"-", character:"+") characters.
-  White space and non-word (and non character:"_", character:"-", character:"+") character punctuations may not exist as part of the variable name.
+  A potential IKI variable name starts on word character or one of character:"_" (unicode:"U+005F"), character:"-" (unicode:"U+002D"), character:"+" (unicode:"U+002B"), character:"[" (unicode:"U+005B")).
+  White space, non-word, and non character:"_" (unicode:"U+005F"), character:"-" (unicode:"U+002D"), character:"+" (unicode:"U+002B")) character punctuations may not exist as part of the variable name.
   The only Unicode dash-like characters allowed as a "dash" are those intended to connect, such as the Unicode hyphens (unicode:"U+2010" and unicode:"U+2011").
 
   Any potential IKI data must be escaped to make it treated as non-IKI data by prepending a backslash character:"\\" before the colon character:":" that is before the opening quote (single, double, or backtic). Potential IKI data refers to any valid IKI sequence without considering the closing single quote character:"'" (unicode:"U+0027"), closing double quote character:'"' (unicode:"U+0022"), or closing backtick character:'`' (unicode:"U+0060").
@@ -36,6 +41,8 @@ IKI Specifications:
     code:"\x" = any character.
     code:"\W" = any non-word character, discluding character:"_", character:"-", character:"+" (and Unicode equivalents).
     code:"\e" = an optional escape sequence of any number of backslashes, such as character:"\\".
+    code:"[" = a single conditionally optional open bracket, character:"[" (unicode:"U+005B").
+    code:"]" = a single conditionally optional close bracket, character:"]" (unicode:"U+005D").
     code:"*" = zero or more occurrences.
     code:"~" = one or more occurrences, or zero if at start of file.
 
@@ -43,7 +50,7 @@ IKI Specifications:
     code:"\x*\W~\*:*"
 
   Structure\:
-    code:"\o\e:\q\c\q"
+    code:"[\o\e:]\q\c\q"
 
   After Structure\:
     code:""
@@ -55,21 +62,29 @@ IKI Specifications:
 
     Other times I want to render a url such as this example url: url\:'http://www.example.com/url with space/'.
 
-    There are no comments, except for maybe the FSS header (which would not resolve to any IKI syntax anyway).
+    There are no comments, except for maybe the FSS\:"Featureless Settings Specification" header (which would not resolve to any IKI syntax anyway).
 
     Quotes may be included, such as: code\:"const char *string = \"My \\\"quoted\\\" C string.\";".
 
     The following emphasis\:"is escaped to not be treated as IKI data".'
 
+    The conditionally optional open and close brackets allow for putting a variable directly next to another word character like: [context]\:"strong"this[context]\:"strong".
+
   Objects (also called vocabulary or variable name) would be\:
-    1) emphasis
-    2) url
-    3) code
+    1) FSS
+    2) emphasis
+    3) url
+    4) code
+    5) context
+    6) context
 
   Contents (also called variable value) would be\:
-    1.1) emphasize some text
-    2.1) http://www.example.com/url with space/
-    3.1) const char *string = "My \"quoted\" C string.";
+    1.1) Featureless Settings Specification
+    2.1) emphasize some text
+    3.1) http://www.example.com/url with space/
+    4.1) const char *string = "My \"quoted\" C string.";
+    5.1) strong
+    6.1) strong
 
   The following are core specifications (each with a common name associated with the specification number)\:
   - fss-0000: Unrestricted