Reword pcretest messages and clarify "first char" meaning.

git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1433 2f5784b3-3f2a-0410-8824-cb99058d5e15

23 files changed, 239 insertions, 232 deletions

diff --git a/ChangeLog b/ChangeLog
index d62a43b..87a7afd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -40,6 +40,12 @@ Version 8.35-RC1 xx-xxxx-201x
 8.  Add missing (new) files sljitNativeTILEGX.c and sljitNativeTILEGX-encoder.c
     to the export list in Makefile.am (they were accidentally omitted from the
     8.34 tarball).
+    
+9.  The informational output from pcretest used the phrase "starting byte set"
+    which is inappropriate for the 16-bit and 32-bit libraries. As the output 
+    for "first char" and "need char" really means "non-UTF-char", I've changed 
+    "byte" to "char", and slightly reworded the output. The documentation about 
+    these values has also been (I hope) clarified.  
 
 
 Version 8.34 15-December-2013
diff --git a/doc/pcreapi.3 b/doc/pcreapi.3
index ebbd20f..0404939 100644
--- a/doc/pcreapi.3
+++ b/doc/pcreapi.3
@@ -1,4 +1,4 @@
-.TH PCREAPI 3 "12 November 2013" "PCRE 8.34"
+.TH PCREAPI 3 "03 January 2014" "PCRE 8.35"
 .SH NAME
 PCRE - Perl-compatible regular expressions
 .sp
@@ -1248,12 +1248,15 @@ information call is provided for internal use by the \fBpcre_study()\fP
 function. External callers can cause PCRE to use its internal tables by passing
 a NULL table pointer.
 .sp
-  PCRE_INFO_FIRSTBYTE
+  PCRE_INFO_FIRSTBYTE (deprecated)
 .sp
 Return information about the first data unit of any matched string, for a
-non-anchored pattern. (The name of this option refers to the 8-bit library,
-where data units are bytes.) The fourth argument should point to an \fBint\fP
-variable.
+non-anchored pattern. The name of this option refers to the 8-bit library,
+where data units are bytes. The fourth argument should point to an \fBint\fP
+variable. Negative values are used for special cases. However, this means that
+when the 32-bit library is in non-UTF-32 mode, the full 32-bit range of
+characters cannot be returned. For this reason, this value is deprecated; use
+PCRE_INFO_FIRSTCHARACTERFLAGS and PCRE_INFO_FIRSTCHARACTER instead.
 .P
 If there is a fixed first value, for example, the letter "c" from a pattern
 such as (cat|cow|coyote), its value is returned. In the 8-bit library, the
@@ -1271,11 +1274,38 @@ starts with "^", or
 -1 is returned, indicating that the pattern matches only at the start of a
 subject string or after any newline within the string. Otherwise -2 is
 returned. For anchored patterns, -2 is returned.
+.sp
+  PCRE_INFO_FIRSTCHARACTER
+.sp
+Return the value of the first data unit (non-UTF character) of any matched
+string in the situation where PCRE_INFO_FIRSTCHARACTERFLAGS returns 1;
+otherwise return 0. The fourth argument should point to an \fBuint_t\fP
+variable.
 .P
-Since for the 32-bit library using the non-UTF-32 mode, this function is unable
-to return the full 32-bit range of the character, this value is deprecated;
-instead the PCRE_INFO_FIRSTCHARACTERFLAGS and PCRE_INFO_FIRSTCHARACTER values
-should be used.
+In the 8-bit library, the value is always less than 256. In the 16-bit library
+the value can be up to 0xffff. In the 32-bit library in UTF-32 mode the value
+can be up to 0x10ffff, and up to 0xffffffff when not using UTF-32 mode.
+.sp
+  PCRE_INFO_FIRSTCHARACTERFLAGS
+.sp
+Return information about the first data unit of any matched string, for a
+non-anchored pattern. The fourth argument should point to an \fBint\fP
+variable.
+.P
+If there is a fixed first value, for example, the letter "c" from a pattern
+such as (cat|cow|coyote), 1 is returned, and the character value can be
+retrieved using PCRE_INFO_FIRSTCHARACTER. If there is no fixed first value, and
+if either
+.sp
+(a) the pattern was compiled with the PCRE_MULTILINE option, and every branch
+starts with "^", or
+.sp
+(b) every branch of the pattern starts with ".*" and PCRE_DOTALL is not set
+(if it were set, the pattern would be anchored),
+.sp
+2 is returned, indicating that the pattern matches only at the start of a
+subject string or after any newline within the string. Otherwise 0 is
+returned. For anchored patterns, 0 is returned.
 .sp
   PCRE_INFO_FIRSTTABLE
 .sp
@@ -1499,38 +1529,6 @@ is made available via this option so that it can be saved and restored (see the
 .\"
 documentation for details).
 .sp
-  PCRE_INFO_FIRSTCHARACTERFLAGS
-.sp
-Return information about the first data unit of any matched string, for a
-non-anchored pattern. The fourth argument should point to an \fBint\fP
-variable.
-.P
-If there is a fixed first value, for example, the letter "c" from a pattern
-such as (cat|cow|coyote), 1 is returned, and the character value can be
-retrieved using PCRE_INFO_FIRSTCHARACTER.
-.P
-If there is no fixed first value, and if either
-.sp
-(a) the pattern was compiled with the PCRE_MULTILINE option, and every branch
-starts with "^", or
-.sp
-(b) every branch of the pattern starts with ".*" and PCRE_DOTALL is not set
-(if it were set, the pattern would be anchored),
-.sp
-2 is returned, indicating that the pattern matches only at the start of a
-subject string or after any newline within the string. Otherwise 0 is
-returned. For anchored patterns, 0 is returned.
-.sp
-  PCRE_INFO_FIRSTCHARACTER
-.sp
-Return the fixed first character value in the situation where
-PCRE_INFO_FIRSTCHARACTERFLAGS returns 1; otherwise return 0. The fourth
-argument should point to an \fBuint_t\fP variable.
-.P
-In the 8-bit library, the value is always less than 256. In the 16-bit library
-the value can be up to 0xffff. In the 32-bit library in UTF-32 mode the value
-can be up to 0x10ffff, and up to 0xffffffff when not using UTF-32 mode.
-.sp
   PCRE_INFO_REQUIREDCHARFLAGS
 .sp
 Returns 1 if there is a rightmost literal data unit that must exist in any
@@ -2900,6 +2898,6 @@ Cambridge CB2 3QH, England.
 .rs
 .sp
 .nf
-Last updated: 12 November 2013
-Copyright (c) 1997-2013 University of Cambridge.
+Last updated: 03 January 2014
+Copyright (c) 1997-2014 University of Cambridge.
 .fi
diff --git a/doc/pcretest.1 b/doc/pcretest.1
index f17c6f2..5a8ec58 100644
--- a/doc/pcretest.1
+++ b/doc/pcretest.1
@@ -1,4 +1,4 @@
-.TH PCRETEST 1 "12 November 2013" "PCRE 8.34"
+.TH PCRETEST 1 "03 January 2014" "PCRE 8.35"
 .SH NAME
 pcretest - a program for testing Perl-compatible regular expressions.
 .SH SYNOPSIS
@@ -483,7 +483,10 @@ below.
 The \fB/I\fP modifier requests that \fBpcretest\fP output information about the
 compiled pattern (whether it is anchored, has a fixed first character, and
 so on). It does this by calling \fBpcre[16|32]_fullinfo()\fP after compiling a
-pattern. If the pattern is studied, the results of that are also output.
+pattern. If the pattern is studied, the results of that are also output. In 
+this output, the word "char" means a non-UTF character, that is, the value of a 
+single data item (8-bit, 16-bit, or 32-bit, depending on the library that is 
+being tested).
 .P
 The \fB/K\fP modifier requests \fBpcretest\fP to show names from backtracking
 control verbs that are returned from calls to \fBpcre[16|32]_exec()\fP. It causes
@@ -1135,6 +1138,6 @@ Cambridge CB2 3QH, England.
 .rs
 .sp
 .nf
-Last updated: 12 November 2013
-Copyright (c) 1997-2013 University of Cambridge.
+Last updated: 03 January 2014
+Copyright (c) 1997-2014 University of Cambridge.
 .fi
diff --git a/pcretest.c b/pcretest.c
index 782c3f7..d1c0a26 100644
--- a/pcretest.c
+++ b/pcretest.c
@@ -4282,12 +4282,12 @@ while (!done)
           if (new_info(re, extra, PCRE_INFO_FIRSTTABLE, &start_bits) == 0)
             {
             if (start_bits == NULL)
-              fprintf(outfile, "No set of starting bytes\n");
+              fprintf(outfile, "No starting char list\n");
             else
               {
               int i;
               int c = 24;
-              fprintf(outfile, "Starting byte set: ");
+              fprintf(outfile, "Starting chars: ");
               for (i = 0; i < 256; i++)
                 {
                 if ((start_bits[i/8] & (1<<(i&7))) != 0)
diff --git a/testdata/testoutput12 b/testdata/testoutput12
index a76e2ae..67ad2c8 100644
--- a/testdata/testoutput12
+++ b/testdata/testoutput12
@@ -8,7 +8,7 @@ No options
 First char = 'a'
 Need char = 'c'
 Subject length lower bound = 3
-No set of starting bytes
+No starting char list
 JIT study was successful
 
 /(?(?C1)(?=a)a)/S+I
@@ -27,7 +27,7 @@ No options
 No first char
 No need char
 Subject length lower bound = -1
-No set of starting bytes
+No starting char list
 JIT study was not successful
 
 /abc/S+I>testsavedregex
@@ -36,7 +36,7 @@ No options
 First char = 'a'
 Need char = 'c'
 Subject length lower bound = 3
-No set of starting bytes
+No starting char list
 JIT study was successful
 Compiled pattern written to testsavedregex
 Study data written to testsavedregex
@@ -165,7 +165,7 @@ No options
 First char = 'a'
 Need char = 'd'
 Subject length lower bound = 4
-No set of starting bytes
+No starting char list
 JIT study was successful
 
 /(*NO_START_OPT)a(*:m)b/KS++
diff --git a/testdata/testoutput13 b/testdata/testoutput13
index 9f73c50..d6fb8a5 100644
--- a/testdata/testoutput13
+++ b/testdata/testoutput13
@@ -8,7 +8,7 @@ No options
 First char = 'a'
 Need char = 'c'
 Subject length lower bound = 3
-No set of starting bytes
+No starting char list
 JIT support is not available in this version of PCRE
 
 /a*/SI
diff --git a/testdata/testoutput14 b/testdata/testoutput14
index 52680a8..ae85681 100644
--- a/testdata/testoutput14
+++ b/testdata/testoutput14
@@ -361,7 +361,7 @@ Options: extended
 No first char
 No need char
 Subject length lower bound = 3
-Starting byte set: \x09 \x20 ! " # $ % & ' ( * + - / 0 1 2 3 4 5 6 7 8 
+Starting chars: \x09 \x20 ! " # $ % & ' ( * + - / 0 1 2 3 4 5 6 7 8 
   9 = ? A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ^ _ ` a b c d e 
   f g h i j k l m n o p q r s t u v w x y z { | } ~ \x7f 
 
@@ -388,7 +388,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x09 \x20 \xa0 
+Starting chars: \x09 \x20 \xa0 
 
 /\H/SI
 Capturing subpattern count = 0
@@ -396,7 +396,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /\v/SI
 Capturing subpattern count = 0
@@ -404,7 +404,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 
+Starting chars: \x0a \x0b \x0c \x0d \x85 
 
 /\V/SI
 Capturing subpattern count = 0
@@ -412,7 +412,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /\R/SI
 Capturing subpattern count = 0
@@ -420,7 +420,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 
+Starting chars: \x0a \x0b \x0c \x0d \x85 
 
 /[\h]/BZ
 ------------------------------------------------------------------
diff --git a/testdata/testoutput15 b/testdata/testoutput15
index 5792be7..5af369d 100644
--- a/testdata/testoutput15
+++ b/testdata/testoutput15
@@ -481,7 +481,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 
   \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 
   \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 
   5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y 
@@ -519,7 +519,7 @@ Options: utf
 First char = \x{c4}
 Need char = \x{80}
 Subject length lower bound = 3
-No set of starting bytes
+No starting char list
   \x{100}\x{100}\x{100}\x{100\x{100}
  0: \x{100}\x{100}\x{100}
 
@@ -539,7 +539,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: x \xc4 
+Starting chars: x \xc4 
 
 /(\x{100}*a|x)/8SDZ
 ------------------------------------------------------------------
@@ -558,7 +558,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a x \xc4 
+Starting chars: a x \xc4 
 
 /(\x{100}{0,2}a|x)/8SDZ
 ------------------------------------------------------------------
@@ -577,7 +577,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a x \xc4 
+Starting chars: a x \xc4 
 
 /(\x{100}{1,2}a|x)/8SDZ
 ------------------------------------------------------------------
@@ -597,7 +597,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: x \xc4 
+Starting chars: x \xc4 
 
 /\x{100}/8DZ
 ------------------------------------------------------------------
@@ -799,7 +799,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x09 \x20 \xc2 \xe1 \xe2 \xe3 
+Starting chars: \x09 \x20 \xc2 \xe1 \xe2 \xe3 
     ABC\x{09}
  0: \x{09}
     ABC\x{20}
@@ -825,7 +825,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \xc2 \xe2 
+Starting chars: \x0a \x0b \x0c \x0d \xc2 \xe2 
     ABC\x{0a}
  0: \x{0a}
     ABC\x{0b}
@@ -845,7 +845,7 @@ Options: utf
 No first char
 Need char = 'A'
 Subject length lower bound = 1
-Starting byte set: \x09 \x20 A \xc2 \xe1 \xe2 \xe3 
+Starting chars: \x09 \x20 A \xc2 \xe1 \xe2 \xe3 
     CDBABC
  0: A
     
@@ -855,7 +855,7 @@ Options: utf
 No first char
 Need char = 'A'
 Subject length lower bound = 2
-Starting byte set: \x0a \x0b \x0c \x0d \xc2 \xe2 
+Starting chars: \x0a \x0b \x0c \x0d \xc2 \xe2 
 
 /\s?xxx\s/8SI
 Capturing subpattern count = 0
@@ -863,7 +863,7 @@ Options: utf
 No first char
 Need char = 'x'
 Subject length lower bound = 4
-Starting byte set: \x09 \x0a \x0b \x0c \x0d \x20 x 
+Starting chars: \x09 \x0a \x0b \x0c \x0d \x20 x 
 
 /\sxxx\s/I8ST1
 Capturing subpattern count = 0
@@ -871,7 +871,7 @@ Options: utf
 No first char
 Need char = 'x'
 Subject length lower bound = 5
-Starting byte set: \x09 \x0a \x0c \x0d \x20 \xc2 
+Starting chars: \x09 \x0a \x0c \x0d \x20 \xc2 
     AB\x{85}xxx\x{a0}XYZ
  0: \x{85}xxx\x{a0}
     AB\x{a0}xxx\x{85}XYZ
@@ -883,7 +883,7 @@ Options: utf
 No first char
 Need char = ' '
 Subject length lower bound = 3
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0b \x0e 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0b \x0e 
   \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 \x1a \x1b \x1c \x1d 
   \x1e \x1f ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ 
   A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ ` a b c d e 
@@ -917,7 +917,7 @@ Options: caseless utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \xe1 
+Starting chars: \xe1 
 
 /\x{1234}+?/iS8I
 Capturing subpattern count = 0
@@ -925,7 +925,7 @@ Options: caseless utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \xe1 
+Starting chars: \xe1 
 
 /\x{1234}++/iS8I
 Capturing subpattern count = 0
@@ -933,7 +933,7 @@ Options: caseless utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \xe1 
+Starting chars: \xe1 
 
 /\x{1234}{2}/iS8I
 Capturing subpattern count = 0
@@ -941,7 +941,7 @@ Options: caseless utf
 No first char
 No need char
 Subject length lower bound = 2
-Starting byte set: \xe1 
+Starting chars: \xe1 
 
 /[^\x{c4}]/8DZ
 ------------------------------------------------------------------
@@ -974,7 +974,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \xc2 \xe2 
+Starting chars: \x0a \x0b \x0c \x0d \xc2 \xe2 
 
 /\777/8DZ
 ------------------------------------------------------------------
diff --git a/testdata/testoutput16 b/testdata/testoutput16
index 1d5f31d..63e9eb0 100644
--- a/testdata/testoutput16
+++ b/testdata/testoutput16
@@ -64,7 +64,7 @@ Options: caseless utf
 No first char
 No need char
 Subject length lower bound = 17
-Starting byte set: \xd0 \xd1 
+Starting chars: \xd0 \xd1 
     \x{401}\x{420}\x{421}\x{422}\x{423}\x{424}\x{425}\x{426}\x{427}\x{428}\x{429}\x{42a}\x{42b}\x{42c}\x{42d}\x{42e}\x{42f}
  0: \x{401}\x{420}\x{421}\x{422}\x{423}\x{424}\x{425}\x{426}\x{427}\x{428}\x{429}\x{42a}\x{42b}\x{42c}\x{42d}\x{42e}\x{42f}
     \x{451}\x{440}\x{441}\x{442}\x{443}\x{444}\x{445}\x{446}\x{447}\x{448}\x{449}\x{44a}\x{44b}\x{44c}\x{44d}\x{44e}\x{44f}
@@ -92,7 +92,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x09 \x20 \xa0 
+Starting chars: \x09 \x20 \xa0 
 
 /\v/SI
 Capturing subpattern count = 0
@@ -100,7 +100,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 
+Starting chars: \x0a \x0b \x0c \x0d \x85 
 
 /\R/SI
 Capturing subpattern count = 0
@@ -108,7 +108,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 
+Starting chars: \x0a \x0b \x0c \x0d \x85 
 
 /[[:blank:]]/WBZ
 ------------------------------------------------------------------
diff --git a/testdata/testoutput17 b/testdata/testoutput17
index c406c66..1a3b492 100644
--- a/testdata/testoutput17
+++ b/testdata/testoutput17
@@ -228,7 +228,7 @@ Options: extended
 No first char
 No need char
 Subject length lower bound = 3
-Starting byte set: \x09 \x20 ! " # $ % & ' ( * + - / 0 1 2 3 4 5 6 7 8 
+Starting chars: \x09 \x20 ! " # $ % & ' ( * + - / 0 1 2 3 4 5 6 7 8 
   9 = ? A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ^ _ ` a b c d e 
   f g h i j k l m n o p q r s t u v w x y z { | } ~ \x7f \xff 
 
@@ -274,7 +274,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x09 \x20 \xa0 \xff 
+Starting chars: \x09 \x20 \xa0 \xff 
     \x{1681}\x{200b}\x{1680}\x{2000}\x{202f}\x{3000}
  0: \x{1680}\x{2000}\x{202f}\x{3000}
     \x{3001}\x{2fff}\x{200a}\xa0\x{2000}
@@ -292,7 +292,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x09 \x20 \xa0 \xff 
+Starting chars: \x09 \x20 \xa0 \xff 
     \x{1681}\x{200b}\x{1680}\x{2000}\x{202f}\x{3000}
  0: \x{1680}\x{2000}\x{202f}\x{3000}
     \x{3001}\x{2fff}\x{200a}\xa0\x{2000}
@@ -304,7 +304,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
     \x{1680}\x{180e}\x{167f}\x{1681}\x{180d}\x{180f}
  0: \x{167f}\x{1681}\x{180d}\x{180f}
     \x{2000}\x{200a}\x{1fff}\x{200b}
@@ -330,7 +330,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d \x85 \xff 
     \x{2027}\x{2030}\x{2028}\x{2029}
  0: \x{2028}\x{2029}
     \x09\x0e\x84\x86\x85\x0a\x0b\x0c\x0d
@@ -348,7 +348,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d \x85 \xff 
     \x{2027}\x{2030}\x{2028}\x{2029}
  0: \x{2028}\x{2029}
     \x09\x0e\x84\x86\x85\x0a\x0b\x0c\x0d
@@ -360,7 +360,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
     \x{2028}\x{2029}\x{2027}\x{2030}
  0: \x{2027}\x{2030}
     \x85\x0a\x0b\x0c\x0d\x09\x0e\x84\x86
@@ -378,7 +378,7 @@ Options: bsr_unicode
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d \x85 \xff 
     \x{2027}\x{2030}\x{2028}\x{2029}
  0: \x{2028}\x{2029}
     \x09\x0e\x84\x86\x85\x0a\x0b\x0c\x0d
diff --git a/testdata/testoutput18-16 b/testdata/testoutput18-16
index 1ca9ee7..0538d7c 100644
--- a/testdata/testoutput18-16
+++ b/testdata/testoutput18-16
@@ -339,7 +339,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 
   \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 
   \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 
   5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y 
@@ -378,7 +378,7 @@ Options: utf
 First char = \x{100}
 Need char = \x{100}
 Subject length lower bound = 3
-No set of starting bytes
+No starting char list
   \x{100}\x{100}\x{100}\x{100\x{100}
  0: \x{100}\x{100}\x{100}
 
@@ -398,7 +398,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: x \xff 
+Starting chars: x \xff 
 
 /(\x{100}*a|x)/8SDZ
 ------------------------------------------------------------------
@@ -417,7 +417,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a x \xff 
+Starting chars: a x \xff 
 
 /(\x{100}{0,2}a|x)/8SDZ
 ------------------------------------------------------------------
@@ -436,7 +436,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a x \xff 
+Starting chars: a x \xff 
 
 /(\x{100}{1,2}a|x)/8SDZ
 ------------------------------------------------------------------
@@ -456,7 +456,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: x \xff 
+Starting chars: x \xff 
 
 /\x{100}/8DZ
 ------------------------------------------------------------------
@@ -666,7 +666,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x09 \x20 \xa0 \xff 
+Starting chars: \x09 \x20 \xa0 \xff 
     ABC\x{09}
  0: \x{09}
     ABC\x{20}
@@ -692,7 +692,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d \x85 \xff 
     ABC\x{0a}
  0: \x{0a}
     ABC\x{0b}
@@ -712,7 +712,7 @@ Options: utf
 No first char
 Need char = 'A'
 Subject length lower bound = 1
-Starting byte set: \x09 \x20 A \xa0 \xff 
+Starting chars: \x09 \x20 A \xa0 \xff 
     CDBABC
  0: A
     \x{2000}ABC 
@@ -724,7 +724,7 @@ Options: utf
 No first char
 Need char = 'A'
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d A \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d A \x85 \xff 
     CDBABC
  0: A
     \x{2028}A  
@@ -736,7 +736,7 @@ Options: utf
 No first char
 Need char = 'A'
 Subject length lower bound = 2
-Starting byte set: \x0a \x0b \x0c \x0d \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d \x85 \xff 
 
 /\s?xxx\s/8SI
 Capturing subpattern count = 0
@@ -744,7 +744,7 @@ Options: utf
 No first char
 Need char = 'x'
 Subject length lower bound = 4
-Starting byte set: \x09 \x0a \x0b \x0c \x0d \x20 x 
+Starting chars: \x09 \x0a \x0b \x0c \x0d \x20 x 
 
 /\sxxx\s/I8ST1
 Capturing subpattern count = 0
@@ -752,7 +752,7 @@ Options: utf
 No first char
 Need char = 'x'
 Subject length lower bound = 5
-Starting byte set: \x09 \x0a \x0c \x0d \x20 \x85 \xa0 
+Starting chars: \x09 \x0a \x0c \x0d \x20 \x85 \xa0 
     AB\x{85}xxx\x{a0}XYZ
  0: \x{85}xxx\x{a0}
     AB\x{a0}xxx\x{85}XYZ
@@ -764,7 +764,7 @@ Options: utf
 No first char
 Need char = ' '
 Subject length lower bound = 3
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0b \x0e 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0b \x0e 
   \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 \x1a \x1b \x1c \x1d 
   \x1e \x1f ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ 
   A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ ` a b c d e 
@@ -803,7 +803,7 @@ Options: caseless utf
 First char = \x{1234}
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /\x{1234}+?/iS8I
 Capturing subpattern count = 0
@@ -811,7 +811,7 @@ Options: caseless utf
 First char = \x{1234}
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /\x{1234}++/iS8I
 Capturing subpattern count = 0
@@ -819,7 +819,7 @@ Options: caseless utf
 First char = \x{1234}
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /\x{1234}{2}/iS8I
 Capturing subpattern count = 0
@@ -827,7 +827,7 @@ Options: caseless utf
 First char = \x{1234}
 Need char = \x{1234}
 Subject length lower bound = 2
-No set of starting bytes
+No starting char list
 
 /[^\x{c4}]/8DZ
 ------------------------------------------------------------------
@@ -860,7 +860,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d \x85 \xff 
 
 /-- Check bad offset --/
 
diff --git a/testdata/testoutput18-32 b/testdata/testoutput18-32
index 89be3a4..f2d1b0c 100644
--- a/testdata/testoutput18-32
+++ b/testdata/testoutput18-32
@@ -337,7 +337,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 
   \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 
   \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 
   5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y 
@@ -376,7 +376,7 @@ Options: utf
 First char = \x{100}
 Need char = \x{100}
 Subject length lower bound = 3
-No set of starting bytes
+No starting char list
   \x{100}\x{100}\x{100}\x{100\x{100}
  0: \x{100}\x{100}\x{100}
 
@@ -396,7 +396,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: x \xff 
+Starting chars: x \xff 
 
 /(\x{100}*a|x)/8SDZ
 ------------------------------------------------------------------
@@ -415,7 +415,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a x \xff 
+Starting chars: a x \xff 
 
 /(\x{100}{0,2}a|x)/8SDZ
 ------------------------------------------------------------------
@@ -434,7 +434,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a x \xff 
+Starting chars: a x \xff 
 
 /(\x{100}{1,2}a|x)/8SDZ
 ------------------------------------------------------------------
@@ -454,7 +454,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: x \xff 
+Starting chars: x \xff 
 
 /\x{100}/8DZ
 ------------------------------------------------------------------
@@ -663,7 +663,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x09 \x20 \xa0 \xff 
+Starting chars: \x09 \x20 \xa0 \xff 
     ABC\x{09}
  0: \x{09}
     ABC\x{20}
@@ -689,7 +689,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d \x85 \xff 
     ABC\x{0a}
  0: \x{0a}
     ABC\x{0b}
@@ -709,7 +709,7 @@ Options: utf
 No first char
 Need char = 'A'
 Subject length lower bound = 1
-Starting byte set: \x09 \x20 A \xa0 \xff 
+Starting chars: \x09 \x20 A \xa0 \xff 
     CDBABC
  0: A
     \x{2000}ABC 
@@ -721,7 +721,7 @@ Options: utf
 No first char
 Need char = 'A'
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d A \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d A \x85 \xff 
     CDBABC
  0: A
     \x{2028}A  
@@ -733,7 +733,7 @@ Options: utf
 No first char
 Need char = 'A'
 Subject length lower bound = 2
-Starting byte set: \x0a \x0b \x0c \x0d \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d \x85 \xff 
 
 /\s?xxx\s/8SI
 Capturing subpattern count = 0
@@ -741,7 +741,7 @@ Options: utf
 No first char
 Need char = 'x'
 Subject length lower bound = 4
-Starting byte set: \x09 \x0a \x0b \x0c \x0d \x20 x 
+Starting chars: \x09 \x0a \x0b \x0c \x0d \x20 x 
 
 /\sxxx\s/I8ST1
 Capturing subpattern count = 0
@@ -749,7 +749,7 @@ Options: utf
 No first char
 Need char = 'x'
 Subject length lower bound = 5
-Starting byte set: \x09 \x0a \x0c \x0d \x20 \x85 \xa0 
+Starting chars: \x09 \x0a \x0c \x0d \x20 \x85 \xa0 
     AB\x{85}xxx\x{a0}XYZ
  0: \x{85}xxx\x{a0}
     AB\x{a0}xxx\x{85}XYZ
@@ -761,7 +761,7 @@ Options: utf
 No first char
 Need char = ' '
 Subject length lower bound = 3
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0b \x0e 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0b \x0e 
   \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 \x1a \x1b \x1c \x1d 
   \x1e \x1f ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ 
   A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ ` a b c d e 
@@ -800,7 +800,7 @@ Options: caseless utf
 First char = \x{1234}
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /\x{1234}+?/iS8I
 Capturing subpattern count = 0
@@ -808,7 +808,7 @@ Options: caseless utf
 First char = \x{1234}
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /\x{1234}++/iS8I
 Capturing subpattern count = 0
@@ -816,7 +816,7 @@ Options: caseless utf
 First char = \x{1234}
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /\x{1234}{2}/iS8I
 Capturing subpattern count = 0
@@ -824,7 +824,7 @@ Options: caseless utf
 First char = \x{1234}
 Need char = \x{1234}
 Subject length lower bound = 2
-No set of starting bytes
+No starting char list
 
 /[^\x{c4}]/8DZ
 ------------------------------------------------------------------
@@ -857,7 +857,7 @@ Options: utf
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x0a \x0b \x0c \x0d \x85 \xff 
+Starting chars: \x0a \x0b \x0c \x0d \x85 \xff 
 
 /-- Check bad offset --/
 
diff --git a/testdata/testoutput19 b/testdata/testoutput19
index ccc198c..21fe677 100644
--- a/testdata/testoutput19
+++ b/testdata/testoutput19
@@ -55,7 +55,7 @@ Options: caseless utf
 First char = \x{401} (caseless)
 Need char = \x{42f} (caseless)
 Subject length lower bound = 17
-No set of starting bytes
+No starting char list
     \x{401}\x{420}\x{421}\x{422}\x{423}\x{424}\x{425}\x{426}\x{427}\x{428}\x{429}\x{42a}\x{42b}\x{42c}\x{42d}\x{42e}\x{42f}
  0: \x{401}\x{420}\x{421}\x{422}\x{423}\x{424}\x{425}\x{426}\x{427}\x{428}\x{429}\x{42a}\x{42b}\x{42c}\x{42d}\x{42e}\x{42f}
     \x{451}\x{440}\x{441}\x{442}\x{443}\x{444}\x{445}\x{446}\x{447}\x{448}\x{449}\x{44a}\x{44b}\x{44c}\x{44d}\x{44e}\x{44f}
diff --git a/testdata/testoutput2 b/testdata/testoutput2
index 70e7ceb..b82488c 100644
--- a/testdata/testoutput2
+++ b/testdata/testoutput2
@@ -178,7 +178,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 3
-Starting byte set: c d e 
+Starting chars: c d e 
     this sentence eventually mentions a cat
  0: cat
     this sentences rambles on and on for a while and then reaches elephant
@@ -190,7 +190,7 @@ Options: caseless
 No first char
 No need char
 Subject length lower bound = 3
-Starting byte set: C D E c d e 
+Starting chars: C D E c d e 
     this sentence eventually mentions a CAT cat
  0: CAT
     this sentences rambles on and on for a while to elephant ElePhant
@@ -202,7 +202,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b c d 
+Starting chars: a b c d 
 
 /(a|[^\dZ])/IS
 Capturing subpattern count = 1
@@ -210,7 +210,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 
   \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 
   \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / : ; < = > 
   ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y [ \ ] ^ _ ` a b c d 
@@ -231,7 +231,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x09 \x0a \x0b \x0c \x0d \x20 a b 
+Starting chars: \x09 \x0a \x0b \x0c \x0d \x20 a b 
 
 /(ab\2)/
 Failed: reference to non-existent subpattern at offset 6
@@ -512,7 +512,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b c d 
+Starting chars: a b c d 
 
 /(?i)[abcd]/IS
 Capturing subpattern count = 0
@@ -520,7 +520,7 @@ Options: caseless
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: A B C D a b c d 
+Starting chars: A B C D a b c d 
 
 /(?m)[xy]|(b|c)/IS
 Capturing subpattern count = 1
@@ -528,7 +528,7 @@ Options: multiline
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: b c x y 
+Starting chars: b c x y 
 
 /(^a|^b)/Im
 Capturing subpattern count = 1
@@ -591,7 +591,7 @@ No options
 First char = 'b' (caseless)
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /(a*b|(?i:c*(?-i)d))/IS
 Capturing subpattern count = 1
@@ -599,7 +599,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: C a b c d 
+Starting chars: C a b c d 
 
 /a$/I
 Capturing subpattern count = 0
@@ -666,7 +666,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b 
+Starting chars: a b 
 
 /(?<!foo)(alpha|omega)/IS
 Capturing subpattern count = 1
@@ -675,7 +675,7 @@ No options
 No first char
 Need char = 'a'
 Subject length lower bound = 5
-Starting byte set: a o 
+Starting chars: a o 
 
 /(?!alphabet)[ab]/IS
 Capturing subpattern count = 0
@@ -683,7 +683,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b 
+Starting chars: a b 
 
 /(?<=foo\n)^bar/Im
 Capturing subpattern count = 0
@@ -1642,7 +1642,7 @@ Options: anchored
 No first char
 Need char = 'd'
 Subject length lower bound = 4
-No set of starting bytes
+No starting char list
 
 /\(             # ( at start
   (?:           # Non-capturing bracket
@@ -1875,7 +1875,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 
+Starting chars: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 
   _ a b c d e f g h i j k l m n o p q r s t u v w x y z 
 
 /^[[:ascii:]]/DZ
@@ -1937,7 +1937,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x09 \x0a \x0b \x0c \x0d \x20 
+Starting chars: \x09 \x0a \x0b \x0c \x0d \x20 
 
 /^[[:cntrl:]]/DZ
 ------------------------------------------------------------------
@@ -3434,7 +3434,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b 
+Starting chars: a b 
 
 /[^a]/I
 Capturing subpattern count = 0
@@ -3454,7 +3454,7 @@ No options
 No first char
 Need char = '6'
 Subject length lower bound = 4
-Starting byte set: 0 1 2 3 4 5 6 7 8 9 
+Starting chars: 0 1 2 3 4 5 6 7 8 9 
 
 /a^b/I
 Capturing subpattern count = 0
@@ -3488,7 +3488,7 @@ Options: caseless
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: A B a b 
+Starting chars: A B a b 
 
 /[ab](?i)cd/IS
 Capturing subpattern count = 0
@@ -3496,7 +3496,7 @@ No options
 No first char
 Need char = 'd' (caseless)
 Subject length lower bound = 3
-Starting byte set: a b 
+Starting chars: a b 
 
 /abc(?C)def/I
 Capturing subpattern count = 0
@@ -3537,7 +3537,7 @@ No options
 No first char
 Need char = 'f'
 Subject length lower bound = 7
-Starting byte set: 0 1 2 3 4 5 6 7 8 9 
+Starting chars: 0 1 2 3 4 5 6 7 8 9 
     1234abcdef
 --->1234abcdef
   1 ^              \d
@@ -3856,7 +3856,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b 
+Starting chars: a b 
 
 /(?R)/I
 Failed: recursive call could loop indefinitely at offset 3
@@ -4637,7 +4637,7 @@ Options: caseless
 No first char
 Need char = 'g' (caseless)
 Subject length lower bound = 8
-No set of starting bytes
+No starting char list
      Baby Bjorn Active Carrier - With free SHIPPING!!
  0: Baby Bjorn Active Carrier - With free SHIPPING!!
  1: Baby Bjorn Active Carrier - With free SHIPPING!!
@@ -4656,7 +4656,7 @@ No options
 No first char
 Need char = 'b'
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /(a|b)*.?c/ISDZ
 ------------------------------------------------------------------
@@ -4677,7 +4677,7 @@ No options
 No first char
 Need char = 'c'
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /abc(?C255)de(?C)f/DZ
 ------------------------------------------------------------------
@@ -4750,7 +4750,7 @@ Options:
 No first char
 Need char = 'b'
 Subject length lower bound = 1
-Starting byte set: a b 
+Starting chars: a b 
   ab
 --->ab
  +0 ^      a*
@@ -4893,7 +4893,7 @@ Options:
 No first char
 Need char = 'x'
 Subject length lower bound = 4
-Starting byte set: a d 
+Starting chars: a d 
   abcx
 --->abcx
  +0 ^        (abc|def)
@@ -5127,7 +5127,7 @@ Options:
 No first char
 No need char
 Subject length lower bound = 2
-Starting byte set: a b x 
+Starting chars: a b x 
     Note: that { does NOT introduce a quantifier
 --->Note: that { does NOT introduce a quantifier
  +0         ^                                        ([ab]{,4}c|xy)
@@ -5607,7 +5607,7 @@ No options
 First char = 'a'
 Need char = 'c'
 Subject length lower bound = 3
-No set of starting bytes
+No starting char list
 Compiled pattern written to testsavedregex
 Study data written to testsavedregex
 <testsavedregex
@@ -5642,7 +5642,7 @@ No options
 First char = 'a'
 Need char = 'c'
 Subject length lower bound = 3
-No set of starting bytes
+No starting char list
 Compiled pattern written to testsavedregex
 Study data written to testsavedregex
 <testsavedregex
@@ -5677,7 +5677,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b 
+Starting chars: a b 
 Compiled pattern written to testsavedregex
 Study data written to testsavedregex
 <testsavedregex
@@ -5716,7 +5716,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b 
+Starting chars: a b 
 Compiled pattern written to testsavedregex
 Study data written to testsavedregex
 <testsavedregex
@@ -6431,7 +6431,7 @@ No options
 No first char
 Need char = ','
 Subject length lower bound = 1
-Starting byte set: \x09 \x0a \x0b \x0c \x0d \x20 , 
+Starting chars: \x09 \x0a \x0b \x0c \x0d \x20 , 
     \x0b,\x0b
  0: \x0b,\x0b
     \x0c,\x0d
@@ -6738,7 +6738,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: C a b c d 
+Starting chars: C a b c d 
 
 /()[ab]xyz/IS
 Capturing subpattern count = 1
@@ -6746,7 +6746,7 @@ No options
 No first char
 Need char = 'z'
 Subject length lower bound = 4
-Starting byte set: a b 
+Starting chars: a b 
 
 /(|)[ab]xyz/IS
 Capturing subpattern count = 1
@@ -6754,7 +6754,7 @@ No options
 No first char
 Need char = 'z'
 Subject length lower bound = 4
-Starting byte set: a b 
+Starting chars: a b 
 
 /(|c)[ab]xyz/IS
 Capturing subpattern count = 1
@@ -6762,7 +6762,7 @@ No options
 No first char
 Need char = 'z'
 Subject length lower bound = 4
-Starting byte set: a b c 
+Starting chars: a b c 
 
 /(|c?)[ab]xyz/IS
 Capturing subpattern count = 1
@@ -6770,7 +6770,7 @@ No options
 No first char
 Need char = 'z'
 Subject length lower bound = 4
-Starting byte set: a b c 
+Starting chars: a b c 
 
 /(d?|c?)[ab]xyz/IS
 Capturing subpattern count = 1
@@ -6778,7 +6778,7 @@ No options
 No first char
 Need char = 'z'
 Subject length lower bound = 4
-Starting byte set: a b c d 
+Starting chars: a b c d 
 
 /(d?|c)[ab]xyz/IS
 Capturing subpattern count = 1
@@ -6786,7 +6786,7 @@ No options
 No first char
 Need char = 'z'
 Subject length lower bound = 4
-Starting byte set: a b c d 
+Starting chars: a b c d 
 
 /^a*b\d/DZ
 ------------------------------------------------------------------
@@ -6879,7 +6879,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b c d 
+Starting chars: a b c d 
 
 /(a+|b*)[cd]/IS
 Capturing subpattern count = 1
@@ -6887,7 +6887,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b c d 
+Starting chars: a b c d 
 
 /(a*|b+)[cd]/IS
 Capturing subpattern count = 1
@@ -6895,7 +6895,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: a b c d 
+Starting chars: a b c d 
 
 /(a+|b+)[cd]/IS
 Capturing subpattern count = 1
@@ -6903,7 +6903,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 2
-Starting byte set: a b 
+Starting chars: a b 
 
 /((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((
  ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((
@@ -9307,7 +9307,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: x y z 
+Starting chars: x y z 
 
 /(?(?=.*b)b|^)/CI
 Capturing subpattern count = 0
@@ -10096,7 +10096,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 2
-Starting byte set: a b 
+Starting chars: a b 
 
 /(a|bc)\1{2,3}/SI
 Capturing subpattern count = 1
@@ -10105,7 +10105,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 3
-Starting byte set: a b 
+Starting chars: a b 
 
 /(a|bc)(?1)/SI
 Capturing subpattern count = 1
@@ -10113,7 +10113,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 2
-Starting byte set: a b 
+Starting chars: a b 
 
 /(a|b\1)(a|b\1)/SI
 Capturing subpattern count = 2
@@ -10122,7 +10122,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 2
-Starting byte set: a b 
+Starting chars: a b 
 
 /(a|b\1){2}/SI
 Capturing subpattern count = 1
@@ -10131,7 +10131,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 2
-Starting byte set: a b 
+Starting chars: a b 
 
 /(a|bbbb\1)(a|bbbb\1)/SI
 Capturing subpattern count = 2
@@ -10140,7 +10140,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 2
-Starting byte set: a b 
+Starting chars: a b 
 
 /(a|bbbb\1){2}/SI
 Capturing subpattern count = 1
@@ -10149,7 +10149,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 2
-Starting byte set: a b 
+Starting chars: a b 
 
 /^From +([^ ]+) +[a-zA-Z][a-zA-Z][a-zA-Z] +[a-zA-Z][a-zA-Z][a-zA-Z] +[0-9]?[0-9] +[0-9][0-9]:[0-9][0-9]/SI
 Capturing subpattern count = 1
@@ -10157,7 +10157,7 @@ Options: anchored
 No first char
 Need char = ':'
 Subject length lower bound = 22
-No set of starting bytes
+No starting char list
 
 /<tr([\w\W\s\d][^<>]{0,})><TD([\w\W\s\d][^<>]{0,})>([\d]{0,}\.)(.*)((<BR>([\w\W\s\d][^<>]{0,})|[\s]{0,}))<\/a><\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><\/TR>/isIS
 Capturing subpattern count = 11
@@ -10165,7 +10165,7 @@ Options: caseless dotall
 First char = '<'
 Need char = '>'
 Subject length lower bound = 47
-No set of starting bytes
+No starting char list
 
 "(?>.*/)foo"SI
 Capturing subpattern count = 0
@@ -10173,7 +10173,7 @@ No options
 No first char
 Need char = 'o'
 Subject length lower bound = 4
-No set of starting bytes
+No starting char list
 
 /(?(?=[^a-z]+[a-z])  \d{2}-[a-z]{3}-\d{2}  |  \d{2}-\d{2}-\d{2} ) /xSI
 Capturing subpattern count = 0
@@ -10181,7 +10181,7 @@ Options: extended
 No first char
 Need char = '-'
 Subject length lower bound = 8
-No set of starting bytes
+No starting char list
 
 /(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))/iSI
 Capturing subpattern count = 1
@@ -10189,7 +10189,7 @@ Options: caseless
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: A B C a b c 
+Starting chars: A B C a b c 
 
 /(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))/SI
 Capturing subpattern count = 0
@@ -10197,7 +10197,7 @@ No options
 No first char
 Need char = 'b'
 Subject length lower bound = 41
-Starting byte set: c d 
+Starting chars: c d 
 
 /<a[\s]+href[\s]*=[\s]*          # find <a href=
  ([\"\'])?                       # find single or double quote
@@ -10210,7 +10210,7 @@ Options: caseless extended dotall
 First char = '<'
 Need char = '='
 Subject length lower bound = 9
-No set of starting bytes
+No starting char list
 
 /^(?!:)                       # colon disallowed at start
   (?:                         # start of item
@@ -10226,7 +10226,7 @@ Options: anchored caseless extended
 No first char
 Need char = ':'
 Subject length lower bound = 2
-No set of starting bytes
+No starting char list
 
 /(?|(?<a>A)|(?<a>B))/I
 Capturing subpattern count = 1
@@ -10450,7 +10450,7 @@ Options:
 No first char
 Need char = 'a'
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
     cat
  0: a
  1: 
@@ -10464,7 +10464,7 @@ No options
 No first char
 Need char = 'a'
 Subject length lower bound = 3
-No set of starting bytes
+No starting char list
     cat
 No match
 
@@ -10476,7 +10476,7 @@ No options
 First char = 'i'
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
     i
  0: i
     
@@ -10486,7 +10486,7 @@ No options
 No first char
 Need char = 'i'
 Subject length lower bound = 1
-Starting byte set: i 
+Starting chars: i 
     ia
  0: ia
  1: 
@@ -11080,7 +11080,7 @@ No options
 First char = 'a'
 Need char = '4'
 Subject length lower bound = 5
-No set of starting bytes
+No starting char list
 
 /([abc])++1234/SI
 Capturing subpattern count = 1
@@ -11088,7 +11088,7 @@ No options
 No first char
 Need char = '4'
 Subject length lower bound = 5
-Starting byte set: a b c 
+Starting chars: a b c 
 
 /(?<=(abc)+)X/
 Failed: lookbehind assertion is not fixed length at offset 10
@@ -11369,7 +11369,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /(a(?2)|b)(b(?1)|a)(?:(?1)|(?2))/SI
 Capturing subpattern count = 2
@@ -11377,7 +11377,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 3
-Starting byte set: a b 
+Starting chars: a b 
 
 /(a(?2)|b)(b(?1)|a)(?1)(?2)/SI
 Capturing subpattern count = 2
@@ -11385,7 +11385,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 4
-Starting byte set: a b 
+Starting chars: a b 
 
 /(abc)(?1)/SI
 Capturing subpattern count = 1
@@ -11393,7 +11393,7 @@ No options
 First char = 'a'
 Need char = 'c'
 Subject length lower bound = 6
-No set of starting bytes
+No starting char list
 
 /^(?>a)++/
     aa\M
@@ -11711,7 +11711,7 @@ No options
 First char = 't'
 Need char = 't'
 Subject length lower bound = 18
-No set of starting bytes
+No starting char list
 
 /\btype\b\W*?\btext\b\W*?\bjavascript\b|\burl\b\W*?\bshell:|<input\b.*?\btype\b\W*?\bimage\b|\bonkeyup\b\W*?\=/IS
 Capturing subpattern count = 0
@@ -11720,7 +11720,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 8
-Starting byte set: < o t u 
+Starting chars: < o t u 
 
 /a(*SKIP)c|b(*ACCEPT)|/+S!I
 Capturing subpattern count = 0
@@ -11729,7 +11729,7 @@ No options
 No first char
 No need char
 Subject length lower bound = -1
-No set of starting bytes
+No starting char list
     a
  0: 
  0+ 
@@ -11740,7 +11740,7 @@ No options
 No first char
 No need char
 Subject length lower bound = -1
-Starting byte set: a b x 
+Starting chars: a b x 
     ax
  0: x
 
@@ -12436,7 +12436,7 @@ No options
 No first char
 No need char
 Subject length lower bound = -1
-No set of starting bytes
+No starting char list
 
 /(?:(a)+(?C1)bb|aa(?C2)b)/
     aab\C+
@@ -12722,7 +12722,7 @@ No options
 No first char
 Need char = 'z'
 Subject length lower bound = 2
-Starting byte set: a z 
+Starting chars: a z 
     aaaaaaaaaaaaaz
 Error -21 (recursion limit exceeded)
     aaaaaaaaaaaaaz\Q1000
@@ -12735,7 +12735,7 @@ No options
 No first char
 Need char = 'z'
 Subject length lower bound = 2
-Starting byte set: a z 
+Starting chars: a z 
     aaaaaaaaaaaaaz
 Error -21 (recursion limit exceeded)
 
@@ -12746,7 +12746,7 @@ No options
 No first char
 Need char = 'z'
 Subject length lower bound = 2
-Starting byte set: a z 
+Starting chars: a z 
     aaaaaaaaaaaaaz
 No match
     aaaaaaaaaaaaaz\Q10
@@ -12790,7 +12790,7 @@ Options: dupnames
 First char = 'a'
 Need char = 'z'
 Subject length lower bound = 5
-No set of starting bytes
+No starting char list
 
 /a*[bcd]/BZ
 ------------------------------------------------------------------
@@ -13902,7 +13902,7 @@ No options
 No first char
 Need char = 'd'
 Subject length lower bound = 1
-Starting byte set: a b c d 
+Starting chars: a b c d 
 
 /[a-c]+d/DZS
 ------------------------------------------------------------------
@@ -13917,7 +13917,7 @@ No options
 No first char
 Need char = 'd'
 Subject length lower bound = 2
-Starting byte set: a b c 
+Starting chars: a b c 
 
 /[a-c]?d/DZS
 ------------------------------------------------------------------
@@ -13932,7 +13932,7 @@ No options
 No first char
 Need char = 'd'
 Subject length lower bound = 1
-Starting byte set: a b c d 
+Starting chars: a b c d 
 
 /[a-c]{4,6}d/DZS
 ------------------------------------------------------------------
@@ -13947,7 +13947,7 @@ No options
 No first char
 Need char = 'd'
 Subject length lower bound = 5
-Starting byte set: a b c 
+Starting chars: a b c 
 
 /[a-c]{0,6}d/DZS
 ------------------------------------------------------------------
@@ -13962,7 +13962,7 @@ No options
 No first char
 Need char = 'd'
 Subject length lower bound = 1
-Starting byte set: a b c d 
+Starting chars: a b c d 
 
 /-- End of special auto-possessive tests --/
 
diff --git a/testdata/testoutput21-16 b/testdata/testoutput21-16
index 0e21350..da194d9 100644
--- a/testdata/testoutput21-16
+++ b/testdata/testoutput21-16
@@ -50,7 +50,7 @@ Options: anchored extended
 No first char
 No need char
 Subject length lower bound = 6
-No set of starting bytes
+No starting char list
 
 <!testsaved16BE-1
 Compiled pattern loaded from testsaved16BE-1
@@ -83,7 +83,7 @@ Options: anchored extended
 No first char
 No need char
 Subject length lower bound = 6
-No set of starting bytes
+No starting char list
 
 <!testsaved32LE-1
 Compiled pattern loaded from testsaved32LE-1
diff --git a/testdata/testoutput21-32 b/testdata/testoutput21-32
index 183487a..d087bb6 100644
--- a/testdata/testoutput21-32
+++ b/testdata/testoutput21-32
@@ -62,7 +62,7 @@ Options: anchored extended
 No first char
 No need char
 Subject length lower bound = 6
-No set of starting bytes
+No starting char list
 
 <!testsaved32BE-1
 Compiled pattern loaded from testsaved32BE-1
@@ -95,6 +95,6 @@ Options: anchored extended
 No first char
 No need char
 Subject length lower bound = 6
-No set of starting bytes
+No starting char list
 
 /-- End of testinput21 --/
diff --git a/testdata/testoutput22-16 b/testdata/testoutput22-16
index f896b13..32a71cd 100644
--- a/testdata/testoutput22-16
+++ b/testdata/testoutput22-16
@@ -37,7 +37,7 @@ Options: extended utf
 No first char
 No need char
 Subject length lower bound = 2
-No set of starting bytes
+No starting char list
 
 <!testsaved16BE-2
 Compiled pattern loaded from testsaved16BE-2
@@ -64,7 +64,7 @@ Options: extended utf
 No first char
 No need char
 Subject length lower bound = 2
-No set of starting bytes
+No starting char list
 
 <!testsaved32LE-2
 Compiled pattern loaded from testsaved32LE-2
diff --git a/testdata/testoutput22-32 b/testdata/testoutput22-32
index 783926b..13e441d 100644
--- a/testdata/testoutput22-32
+++ b/testdata/testoutput22-32
@@ -49,7 +49,7 @@ Options: extended utf
 No first char
 No need char
 Subject length lower bound = 2
-No set of starting bytes
+No starting char list
 
 <!testsaved32BE-2
 Compiled pattern loaded from testsaved32BE-2
@@ -76,6 +76,6 @@ Options: extended utf
 No first char
 No need char
 Subject length lower bound = 2
-No set of starting bytes
+No starting char list
 
 /-- End of testinput22 --/
diff --git a/testdata/testoutput23 b/testdata/testoutput23
index eedbb60..6dabf03 100644
--- a/testdata/testoutput23
+++ b/testdata/testoutput23
@@ -27,7 +27,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0a \x0b 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0a \x0b 
   \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 \x1a 
   \x1b \x1c \x1d \x1e \x1f ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 
   : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ 
@@ -54,7 +54,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0e 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0e 
   \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 \x1a \x1b \x1c \x1d 
   \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > 
   ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ ` a b c 
diff --git a/testdata/testoutput25 b/testdata/testoutput25
index 0561e7c..4c62c8d 100644
--- a/testdata/testoutput25
+++ b/testdata/testoutput25
@@ -74,7 +74,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0a \x0b 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0a \x0b 
   \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 \x1a 
   \x1b \x1c \x1d \x1e \x1f ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 
   : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ 
@@ -101,7 +101,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0e 
+Starting chars: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0e 
   \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 \x1a \x1b \x1c \x1d 
   \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > 
   ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ ` a b c 
diff --git a/testdata/testoutput3 b/testdata/testoutput3
index 12ffc99..6241623 100644
--- a/testdata/testoutput3
+++ b/testdata/testoutput3
@@ -90,7 +90,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 
+Starting chars: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 
   Q R S T U V W X Y Z _ a b c d e f g h i j k l m n o p q r s t u v w x y z 
 
 /\w/ISLfr_FR
@@ -99,7 +99,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 1
-Starting byte set: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 
+Starting chars: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 
   Q R S T U V W X Y Z _ a b c d e f g h i j k l m n o p q r s t u v w x y z 
   ª µ º À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï Ð Ñ Ò Ó Ô Õ Ö Ø Ù Ú Û Ü Ý Þ ß à á â 
   ã ä å æ ç è é ê ë ì í î ï ð ñ ò ó ô õ ö ø ù ú û ü ý þ ÿ 
diff --git a/testdata/testoutput5 b/testdata/testoutput5
index 4d67d1c..5c098e6 100644
--- a/testdata/testoutput5
+++ b/testdata/testoutput5
@@ -1536,7 +1536,7 @@ Options: caseless utf
 No first char
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /[^\x{1234}]+?/iS8I   
 Capturing subpattern count = 0
@@ -1544,7 +1544,7 @@ Options: caseless utf
 No first char
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /[^\x{1234}]++/iS8I   
 Capturing subpattern count = 0
@@ -1552,7 +1552,7 @@ Options: caseless utf
 No first char
 No need char
 Subject length lower bound = 1
-No set of starting bytes
+No starting char list
 
 /[^\x{1234}]{2}/iS8I
 Capturing subpattern count = 0
@@ -1560,7 +1560,7 @@ Options: caseless utf
 No first char
 No need char
 Subject length lower bound = 2
-No set of starting bytes
+No starting char list
 
 //<bsr_anycrlf><bsr_unicode>
 Failed: inconsistent NEWLINE options at offset 0
diff --git a/testdata/testoutput8 b/testdata/testoutput8
index bb68d3e..3861ea4 100644
--- a/testdata/testoutput8
+++ b/testdata/testoutput8
@@ -7232,7 +7232,7 @@ No options
 No first char
 No need char
 Subject length lower bound = 3
-Starting byte set: a d x 
+Starting chars: a d x 
     terhjk;abcdaadsfe
  0: abc
     the quick xyz brown fox