Fix VERSION condition bug.

ChangeLog

@@ -240,6 +240,11 @@ second and subsequent calls to pcre2_match().
 pcre2_substitute(). An added check for a number greater than the largest group 
 number in the pattern means this is not now needed.
 
+70. The PCRE2-specific VERSION condition didn't work correctly if only one 
+digit was given after the decimal point, or if more than two digits were given. 
+It now works with one or two digits, and gives a compile time error if more are 
+given.
+
 
 Version 10.20 30-June-2015
 --------------------------

doc/pcre2pattern.3

@@ -1,4 +1,4 @@
-.TH PCRE2PATTERN 3 "16 October 2015" "PCRE2 10.21"
+.TH PCRE2PATTERN 3 "01 November 2015" "PCRE2 10.21"
 .SH NAME
 PCRE2 - Perl-compatible regular expressions (revised API)
 .SH "PCRE2 REGULAR EXPRESSION DETAILS"
@@ -2534,7 +2534,8 @@ For example:
   (?(VERSION>=10.4)yes|no)
 .sp
 This pattern matches "yes" if the PCRE2 version is greater or equal to 10.4, or
-"no" otherwise.
+"no" otherwise. The fractional part of the version number may not contain more 
+than two digits.
 .
 .
 .SS "Assertion conditions"
@@ -3392,6 +3393,6 @@ Cambridge, England.
 .rs
 .sp
 .nf
-Last updated: 16 October 2015
+Last updated: 01 November 2015
 Copyright (c) 1997-2015 University of Cambridge.
 .fi

src/pcre2_compile.c

@@ -3731,7 +3731,7 @@ for (;; ptr++)
     if (code > cb->start_workspace + cb->workspace_size -
         WORK_SIZE_SAFETY_MARGIN)                       /* Check for overrun */
       {
-      *errorcodeptr = (code >= cb->start_workspace + cb->workspace_size)? 
+      *errorcodeptr = (code >= cb->start_workspace + cb->workspace_size)?
         ERR52 : ERR86;
       goto FAILED;
       }
@@ -5885,9 +5885,10 @@ for (;; ptr++)
             {
             ptr++;
             while (IS_DIGIT(*ptr)) minor = minor * 10 + *ptr++ - '0';
+            if (minor < 10) minor *= 10;
             }
 
-          if (*ptr != CHAR_RIGHT_PARENTHESIS)
+          if (*ptr != CHAR_RIGHT_PARENTHESIS || minor > 99)
             {
             *errorcodeptr = ERR79;
             goto FAILED;

testdata/testinput2

@@ -4018,6 +4018,8 @@
 
 /(?(VERSION>=10.0.0)yes|no)/
 
+/(?(VERSION=10.101)yes|no)/
+
 /abcd/I
 
 /abcd/I,no_start_optimize

testdata/testoutput2

@@ -13386,6 +13386,9 @@ Failed: error 179 at offset 11: syntax error in (?(VERSION condition
 /(?(VERSION>=10.0.0)yes|no)/
 Failed: error 179 at offset 16: syntax error in (?(VERSION condition
 
+/(?(VERSION=10.101)yes|no)/
+Failed: error 179 at offset 17: syntax error in (?(VERSION condition
+
 /abcd/I
 Capturing subpattern count = 0
 First code unit = 'a'