Update upstream source from tag 'upstream/0.9.10'

Update to upstream version '0.9.10'
with Debian dir 9736048cfd7ea97640dba10ba42a3839100c5694

28 files changed, 145 insertions, 146 deletions

diff --git a/doc/Makefile.in b/doc/Makefile.in
index d9711450..1568e873 100644
--- a/doc/Makefile.in
+++ b/doc/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.15 from Makefile.am.
+# Makefile.in generated by automake 1.15.1 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2014 Free Software Foundation, Inc.
+# Copyright (C) 1994-2017 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -806,6 +806,7 @@ HAVE_DECL_STRTOK_R = @HAVE_DECL_STRTOK_R@
 HAVE_DECL_STRTOUMAX = @HAVE_DECL_STRTOUMAX@
 HAVE_DECL_TANL = @HAVE_DECL_TANL@
 HAVE_DECL_TRUNC = @HAVE_DECL_TRUNC@
+HAVE_DECL_TRUNCATE = @HAVE_DECL_TRUNCATE@
 HAVE_DECL_TRUNCF = @HAVE_DECL_TRUNCF@
 HAVE_DECL_TRUNCL = @HAVE_DECL_TRUNCL@
 HAVE_DECL_TTYNAME_R = @HAVE_DECL_TTYNAME_R@
@@ -856,6 +857,7 @@ HAVE_HYPOTL = @HAVE_HYPOTL@
 HAVE_ILOGB = @HAVE_ILOGB@
 HAVE_ILOGBF = @HAVE_ILOGBF@
 HAVE_ILOGBL = @HAVE_ILOGBL@
+HAVE_IMAXDIV_T = @HAVE_IMAXDIV_T@
 HAVE_INTTYPES_H = @HAVE_INTTYPES_H@
 HAVE_ISBLANK = @HAVE_ISBLANK@
 HAVE_ISNAND = @HAVE_ISNAND@
@@ -974,7 +976,6 @@ HAVE_TANHF = @HAVE_TANHF@
 HAVE_TANL = @HAVE_TANL@
 HAVE_TIMEGM = @HAVE_TIMEGM@
 HAVE_TIMEZONE_T = @HAVE_TIMEZONE_T@
-HAVE_TRUNCATE = @HAVE_TRUNCATE@
 HAVE_TYPE_VOLATILE_SIG_ATOMIC_T = @HAVE_TYPE_VOLATILE_SIG_ATOMIC_T@
 HAVE_TZSET = @HAVE_TZSET@
 HAVE_UNISTD_H = @HAVE_UNISTD_H@
diff --git a/doc/libunistring.info b/doc/libunistring.info
index c4be8a4c..f6822abb 100644
--- a/doc/libunistring.info
+++ b/doc/libunistring.info
@@ -1,4 +1,4 @@
-This is libunistring.info, produced by makeinfo version 6.3 from
+This is libunistring.info, produced by makeinfo version 6.4 from
 libunistring.texi.
 
 INFO-DIR-SECTION Software development
@@ -201,7 +201,6 @@ as internal in-memory representation.
 * Locale encodings::            What is a locale encoding?
 * In-memory representation::    How to represent strings in memory?
 * char * strings::              What to keep in mind with ‘char *’ strings
-* The wchar_t mess::            Why ‘wchar_t *’ strings are useless
 * Unicode strings::             How are Unicode strings represented?
 
 
@@ -6682,91 +6681,91 @@ Index
 Tag Table:
 Node: Top269
 Node: Introduction3950
-Node: Unicode6043
-Node: Unicode and i18n7928
-Node: Locale encodings9590
-Node: In-memory representation11855
-Node: char * strings13853
-Node: Unicode strings19340
-Node: Conventions20523
-Node: unitypes.h22815
-Node: unistr.h23912
-Node: Elementary string checks24477
-Node: Elementary string conversions25099
-Node: Elementary string functions26977
-Node: Iterating27382
-Node: Creating Unicode strings30212
-Node: Copying Unicode strings31130
-Node: Comparing Unicode strings32743
-Node: Searching for a character34298
-Node: Counting characters35097
-Node: Elementary string functions with memory allocation35780
-Node: Elementary string functions on NUL terminated strings36402
-Node: Iterating over a NUL terminated Unicode string37001
-Node: Length39269
-Node: Copying a NUL terminated Unicode string40327
-Node: Comparing NUL terminated Unicode strings43431
-Node: Duplicating a NUL terminated Unicode string45527
-Node: Searching for a character in a NUL terminated Unicode string46296
-Node: Searching for a substring49060
-Node: Tokenizing50583
-Node: uniconv.h51456
-Node: unistdio.h59409
-Node: uniname.h67662
-Node: unictype.h69068
-Node: General category69996
-Node: Object oriented API71051
-Node: Bit mask API80892
-Node: Canonical combining class83187
-Node: Bidi class87421
-Node: Decimal digit value90834
-Node: Digit value91391
-Node: Numeric value91952
-Node: Mirrored character92854
-Node: Arabic shaping93547
-Node: Joining type94020
-Node: Joining group96170
-Node: Properties99608
-Node: Properties as objects100299
-Node: Properties as functions107321
-Node: Scripts113337
-Node: Blocks114742
-Node: ISO C and Java syntax116085
-Node: Classifications like in ISO C117803
-Node: uniwidth.h120615
-Node: unigbrk.h122661
-Node: Grapheme cluster breaks in a string124155
-Node: Grapheme cluster break property127090
-Node: uniwbrk.h129335
-Node: Word breaks in a string129873
-Node: Word break property130965
-Node: unilbrk.h132292
-Node: uninorm.h136588
-Node: Decomposition of characters137225
-Node: Composition of characters141006
-Node: Normalization of strings141719
-Node: Normalizing comparisons143892
-Node: Normalization of streams146390
-Node: unicase.h148515
-Node: Case mappings of characters149204
-Node: Case mappings of strings151353
-Node: Case mappings of substrings154992
-Node: Case insensitive comparison162202
-Node: Case detection167895
-Node: uniregex.h171209
-Node: Using the library171436
-Node: Installation171847
-Node: Compiler options172335
-Node: Include files173975
-Node: Autoconf macro175228
-Node: Reporting problems176868
-Node: More functionality177686
-Node: The wchar_t mess178137
-Node: Licenses180475
-Node: GNU GPL182904
-Node: GNU LGPL220649
-Node: GNU FDL229132
-Node: Index254441
+Node: Unicode5971
+Node: Unicode and i18n7856
+Node: Locale encodings9518
+Node: In-memory representation11783
+Node: char * strings13781
+Node: Unicode strings19268
+Node: Conventions20451
+Node: unitypes.h22743
+Node: unistr.h23840
+Node: Elementary string checks24405
+Node: Elementary string conversions25027
+Node: Elementary string functions26905
+Node: Iterating27310
+Node: Creating Unicode strings30140
+Node: Copying Unicode strings31058
+Node: Comparing Unicode strings32671
+Node: Searching for a character34226
+Node: Counting characters35025
+Node: Elementary string functions with memory allocation35708
+Node: Elementary string functions on NUL terminated strings36330
+Node: Iterating over a NUL terminated Unicode string36929
+Node: Length39197
+Node: Copying a NUL terminated Unicode string40255
+Node: Comparing NUL terminated Unicode strings43359
+Node: Duplicating a NUL terminated Unicode string45455
+Node: Searching for a character in a NUL terminated Unicode string46224
+Node: Searching for a substring48988
+Node: Tokenizing50511
+Node: uniconv.h51384
+Node: unistdio.h59337
+Node: uniname.h67590
+Node: unictype.h68996
+Node: General category69924
+Node: Object oriented API70979
+Node: Bit mask API80820
+Node: Canonical combining class83115
+Node: Bidi class87349
+Node: Decimal digit value90762
+Node: Digit value91319
+Node: Numeric value91880
+Node: Mirrored character92782
+Node: Arabic shaping93475
+Node: Joining type93948
+Node: Joining group96098
+Node: Properties99536
+Node: Properties as objects100227
+Node: Properties as functions107249
+Node: Scripts113265
+Node: Blocks114670
+Node: ISO C and Java syntax116013
+Node: Classifications like in ISO C117731
+Node: uniwidth.h120543
+Node: unigbrk.h122589
+Node: Grapheme cluster breaks in a string124083
+Node: Grapheme cluster break property127018
+Node: uniwbrk.h129263
+Node: Word breaks in a string129801
+Node: Word break property130893
+Node: unilbrk.h132220
+Node: uninorm.h136516
+Node: Decomposition of characters137153
+Node: Composition of characters140934
+Node: Normalization of strings141647
+Node: Normalizing comparisons143820
+Node: Normalization of streams146318
+Node: unicase.h148443
+Node: Case mappings of characters149132
+Node: Case mappings of strings151281
+Node: Case mappings of substrings154920
+Node: Case insensitive comparison162130
+Node: Case detection167823
+Node: uniregex.h171137
+Node: Using the library171364
+Node: Installation171775
+Node: Compiler options172263
+Node: Include files173903
+Node: Autoconf macro175156
+Node: Reporting problems176796
+Node: More functionality177614
+Node: The wchar_t mess178065
+Node: Licenses180403
+Node: GNU GPL182832
+Node: GNU LGPL220577
+Node: GNU FDL229060
+Node: Index254369
 
 End Tag Table
 
diff --git a/doc/libunistring.texi b/doc/libunistring.texi
index 6a1d6626..cb5abddf 100644
--- a/doc/libunistring.texi
+++ b/doc/libunistring.texi
@@ -348,7 +348,6 @@ internal in-memory representation.
 * Locale encodings::            What is a locale encoding?
 * In-memory representation::    How to represent strings in memory?
 * char * strings::              What to keep in mind with @code{char *} strings
-* The wchar_t mess::            Why @code{wchar_t *} strings are useless
 * Unicode strings::             How are Unicode strings represented?
 @end menu
 
diff --git a/doc/libunistring_1.html b/doc/libunistring_1.html
index 8219ef35..02bf2672 100644
--- a/doc/libunistring_1.html
+++ b/doc/libunistring_1.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -491,7 +491,7 @@ zero-valued unit used as &ldquo;end marker&rdquo;.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_10.html b/doc/libunistring_10.html
index a9728688..68448fb5 100644
--- a/doc/libunistring_10.html
+++ b/doc/libunistring_10.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -293,7 +293,7 @@ consecutive characters are needed to determine the boundary.  Use
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_11.html b/doc/libunistring_11.html
index 395c7030..c2d55d60 100644
--- a/doc/libunistring_11.html
+++ b/doc/libunistring_11.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -210,7 +210,7 @@ may be added in the future.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_12.html b/doc/libunistring_12.html
index f695008a..3af8c37f 100644
--- a/doc/libunistring_12.html
+++ b/doc/libunistring_12.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -191,7 +191,7 @@ the values <code>UC_BREAK_MANDATORY</code>, <code>UC_BREAK_POSSIBLE</code>,
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_13.html b/doc/libunistring_13.html
index f3af0221..96a9f144 100644
--- a/doc/libunistring_13.html
+++ b/doc/libunistring_13.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -509,7 +509,7 @@ then closes and frees the filter.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_14.html b/doc/libunistring_14.html
index 1fbb06c1..aa326f68 100644
--- a/doc/libunistring_14.html
+++ b/doc/libunistring_14.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -629,7 +629,7 @@ characters. Upon failure, returns -1 with <code>errno</code> set.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_15.html b/doc/libunistring_15.html
index c76d1a70..90fe8782 100644
--- a/doc/libunistring_15.html
+++ b/doc/libunistring_15.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -78,7 +78,7 @@ ul.toc {list-style: none}
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_16.html b/doc/libunistring_16.html
index 0dde5375..fc623c82 100644
--- a/doc/libunistring_16.html
+++ b/doc/libunistring_16.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -223,7 +223,7 @@ a description of the options that you passed to the &lsquo;<samp>configure</samp
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_17.html b/doc/libunistring_17.html
index 85bfa510..e055097e 100644
--- a/doc/libunistring_17.html
+++ b/doc/libunistring_17.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -84,7 +84,7 @@ ul.toc {list-style: none}
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
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diff --git a/doc/libunistring_18.html b/doc/libunistring_18.html
index baf80b98..06e2e2a9 100644
--- a/doc/libunistring_18.html
+++ b/doc/libunistring_18.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -124,7 +124,7 @@ the program to produce garbage or abort.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_19.html b/doc/libunistring_19.html
index 25f6a61f..e0eee13b 100644
--- a/doc/libunistring_19.html
+++ b/doc/libunistring_19.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -1535,7 +1535,7 @@ to permit their use in free software.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
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diff --git a/doc/libunistring_2.html b/doc/libunistring_2.html
index d9ff9dd8..46c162dd 100644
--- a/doc/libunistring_2.html
+++ b/doc/libunistring_2.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -132,7 +132,7 @@ NULL is returned and <code>errno</code> is set.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
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diff --git a/doc/libunistring_20.html b/doc/libunistring_20.html
index 46ec861d..6c812272 100644
--- a/doc/libunistring_20.html
+++ b/doc/libunistring_20.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -808,7 +808,7 @@ ul.toc {list-style: none}
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_21.html b/doc/libunistring_21.html
index 3e4eb3ac..cdca4695 100644
--- a/doc/libunistring_21.html
+++ b/doc/libunistring_21.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -181,7 +181,7 @@ ul.toc {list-style: none}
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_3.html b/doc/libunistring_3.html
index 8ea8a261..cf73702e 100644
--- a/doc/libunistring_3.html
+++ b/doc/libunistring_3.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -110,7 +110,7 @@ declared to take <code>ucs4_t</code> arguments will not perform such a range-che
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_4.html b/doc/libunistring_4.html
index 1cb16596..f54eec52 100644
--- a/doc/libunistring_4.html
+++ b/doc/libunistring_4.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -945,7 +945,7 @@ that it operates on Unicode strings.  Its interface is actually more similar to
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_5.html b/doc/libunistring_5.html
index fc63eb0e..ef65c7e6 100644
--- a/doc/libunistring_5.html
+++ b/doc/libunistring_5.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -287,7 +287,7 @@ strings in locale encoding and NUL terminated Unicode strings.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_6.html b/doc/libunistring_6.html
index 7f8bfd1e..2868ca4e 100644
--- a/doc/libunistring_6.html
+++ b/doc/libunistring_6.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -442,7 +442,7 @@ locale encoding to a <code>FILE</code> stream.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_7.html b/doc/libunistring_7.html
index eeb5da1d..7fa99b36 100644
--- a/doc/libunistring_7.html
+++ b/doc/libunistring_7.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -117,7 +117,7 @@ Returns the character if found, or <code>UNINAME_INVALID</code> if not found.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_8.html b/doc/libunistring_8.html
index 3dc8f98c..1af96f55 100644
--- a/doc/libunistring_8.html
+++ b/doc/libunistring_8.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -2509,7 +2509,7 @@ a locale-specific set of characters for which <code>uc_is_alnum</code> is false.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_9.html b/doc/libunistring_9.html
index a2101b93..ac653db6 100644
--- a/doc/libunistring_9.html
+++ b/doc/libunistring_9.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -132,7 +132,7 @@ This function ignores control characters in the string.
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_abt.html b/doc/libunistring_abt.html
index d34d3515..924f37c9 100644
--- a/doc/libunistring_abt.html
+++ b/doc/libunistring_abt.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -50,7 +50,7 @@ ul.toc {list-style: none}
 </tr></table>
 <h1>About This Document</h1>
 <p>
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
 </p>
 <p>
   The buttons in the navigation panels have the following meaning:
@@ -158,7 +158,7 @@ ul.toc {list-style: none}
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/libunistring_toc.html b/doc/libunistring_toc.html
index 62cf5f7d..7b007395 100644
--- a/doc/libunistring_toc.html
+++ b/doc/libunistring_toc.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
 <html>
-<!-- Created on February, 28 2018 by texi2html 1.78a -->
+<!-- Created on May, 25 2018 by texi2html 1.78a -->
 <!--
 Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
             Karl Berry  <karl@freefriends.org>
@@ -184,7 +184,7 @@ ul.toc {list-style: none}
 </tr></table>
 <p>
  <font size="-1">
-  This document was generated by <em>Daiki Ueno</em> on <em>February, 28 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
+  This document was generated by <em>Daiki Ueno</em> on <em>May, 25 2018</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>.
  </font>
  <br>
 
diff --git a/doc/stamp-vti b/doc/stamp-vti
index 23c85aab..eef982b6 100644
--- a/doc/stamp-vti
+++ b/doc/stamp-vti
@@ -1,4 +1,4 @@
-@set UPDATED 12 February 2018
-@set UPDATED-MONTH February 2018
-@set EDITION 0.9.9
-@set VERSION 0.9.9
+@set UPDATED 25 May 2018
+@set UPDATED-MONTH May 2018
+@set EDITION 0.9.10
+@set VERSION 0.9.10
diff --git a/doc/version.texi b/doc/version.texi
index 23c85aab..eef982b6 100644
--- a/doc/version.texi
+++ b/doc/version.texi
@@ -1,4 +1,4 @@
-@set UPDATED 12 February 2018
-@set UPDATED-MONTH February 2018
-@set EDITION 0.9.9
-@set VERSION 0.9.9
+@set UPDATED 25 May 2018
+@set UPDATED-MONTH May 2018
+@set EDITION 0.9.10
+@set VERSION 0.9.10