New upstream version 6.6.1upstream/6.6.1

1 files changed, 35 insertions, 15 deletions

diff --git a/doc/RE b/doc/RE
index 16cc888..8781b38 100644
--- a/doc/RE
+++ b/doc/RE
@@ -1,4 +1,4 @@
-Oniguruma Regular Expressions Version 6.5.0    2017/07/30
+Oniguruma Regular Expressions Version 6.6.0    2017/08/29
 
 syntax: ONIG_SYNTAX_RUBY (default)
 
@@ -80,6 +80,16 @@ syntax: ONIG_SYNTAX_RUBY (default)
 
   \O       true anychar      (?m:.)    (* original function)
 
+  \X       Extended Grapheme Cluster    (?>\O(?:\Y\O)*)
+
+           \X doesn't check whether matching start position is boundary.
+           Write as \y\X if you want to ensure it.
+
+           Unicode case:
+             See [Unicode Standard Annex #29: http://unicode.org/reports/tr29/]
+
+           Not Unicode:   (?>\r\n|\O)
+
 
   Character Property
 
@@ -139,6 +149,9 @@ syntax: ONIG_SYNTAX_RUBY (default)
   $       end of the line
   \b      word boundary
   \B      non-word boundary
+  \y      Extended Grapheme Cluster boundary
+  \Y      Extended Grapheme Cluster non-boundary
+
   \A      beginning of string
   \Z      end of string, or before newline at the end
   \z      end of string
@@ -207,11 +220,19 @@ syntax: ONIG_SYNTAX_RUBY (default)
 
   (?#...)            comment
 
-  (?imx-imx)         option on/off
-                         i: ignore case
-                         m: multi-line (dot (.) also matches newline)
-                         x: extended form
-  (?imx-imx:subexp)  option on/off for subexp
+  (?imxWDSP-imxWDSP)         option on/off
+                               i: ignore case
+                               m: multi-line (dot (.) also matches newline)
+                               x: extended form
+                               W: ASCII only word (\w, \p{Word}, [[:word:]])
+                                  ASCII only word bound (\b)
+                               D: ASCII only digit (\d, \p{Digit}, [[:digit:]])
+                               S: ASCII only space (\s, \p{Space}, [[:space:]])
+                               P: ASCII only POSIX properties (includes W,D,S)
+                                  (alnum, alpha, blank, cntrl, digit, graph,
+                                   lower, print, punct, space, upper, xdigit, word)
+
+  (?imxWDSP-imxWDSP:subexp)  option on/off for subexp
 
   (?:subexp)         non-capturing group
   (subexp)           capturing group
@@ -245,24 +266,23 @@ syntax: ONIG_SYNTAX_RUBY (default)
   (?~absent)         Absent repeater    (* proposed by Tanaka Akira)
                      This works like .* (more precisely \O*), but it is
                      limited by the range that does not include the string
-                     match with absent.
+                     match with <absent>.
                      This is a written abbreviation of (?~|absent|\O*).
                      \O* is used as a repeater.
 
   (?~|absent|exp)    Absent expression  (* original)
                      This works like "exp", but it is limited by the range
-                     that does not include the string match with absent.
+                     that does not include the string match with <absent>.
 
                      ex. (?~|345|\d*)  "12345678"  ==> "12", "1", ""
 
-  (?~|absent)        Absent cutter (* original)
+  (?~|absent)        Absent stopper (* original)
                      After passed this operator, string right range is limited
                      at the point that does not include the string match whth
-                     absent.
+                     <absent>.
 
-  (?~|)              Absent clear
-                     Clear the effects caused by Absent cutters.
-                     (* This operation is not cancelled by backtrack.)
+  (?~|)              Range clear
+                     Clear the effects caused by Absent stoppers.
 
      * Nested Absent functions are not supported and the behavior
        is undefined.
@@ -273,7 +293,7 @@ syntax: ONIG_SYNTAX_RUBY (default)
 
                condition_exp can be a backreference number/name or a normal
                regular expression.
-               When condition_exp is a backreference, both then_exp and
+               When condition_exp is a backreference number/name, both then_exp and
                else_exp can be omitted.
                Then it works as a backreference validity checker.
 
@@ -420,7 +440,7 @@ A-2. Original extensions
 A-3. Missing features compared with perl 5.8.0
 
    + \N{name}
-   + \l,\u,\L,\U, \X, \C
+   + \l,\u,\L,\U,\C
    + (?{code})
    + (??{code})