From 729eeeb3f821981cc5d3c9e06ffbb85ed4d857d7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Konstantin=20K=C3=A4fer?= <mail@kkaefer.com>
Date: Wed, 17 Oct 2018 16:45:41 +0200
Subject: [core] remove use of <boost/algorithm/string.hpp>

---
 src/mbgl/text/shaping.cpp       | 4 +---
 src/mbgl/text/tagged_string.cpp | 3 ---
 src/mbgl/util/i18n.cpp          | 4 ++++
 src/mbgl/util/i18n.hpp          | 2 ++
 4 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/mbgl/text/shaping.cpp b/src/mbgl/text/shaping.cpp
index d6cbb2a4f8..6d10085ad3 100644
--- a/src/mbgl/text/shaping.cpp
+++ b/src/mbgl/text/shaping.cpp
@@ -4,8 +4,6 @@
 #include <mbgl/math/minmax.hpp>
 #include <mbgl/text/bidi.hpp>
 
-#include <boost/algorithm/string.hpp>
-
 #include <algorithm>
 #include <cmath>
 
@@ -247,7 +245,7 @@ std::set<std::size_t> determineLineBreaks(const TaggedString& logicalInput,
             continue;
         }
         auto it = glyphs->second.find(codePoint);
-        if (it != glyphs->second.end() && it->second && !boost::algorithm::is_any_of(u" \t\n\v\f\r")(codePoint)) {
+        if (it != glyphs->second.end() && it->second && !util::i18n::isWhitespace(codePoint)) {
             currentX += (*it->second)->metrics.advance * section.scale + spacing;
         }
         
diff --git a/src/mbgl/text/tagged_string.cpp b/src/mbgl/text/tagged_string.cpp
index e199a7c962..851e011c4f 100644
--- a/src/mbgl/text/tagged_string.cpp
+++ b/src/mbgl/text/tagged_string.cpp
@@ -1,8 +1,6 @@
 #include <mbgl/text/tagged_string.hpp>
 #include <mbgl/util/i18n.hpp>
 
-#include <boost/algorithm/string.hpp>
-
 namespace mbgl {
     
 void TaggedString::addSection(const std::u16string& sectionText, double scale, FontStackHash fontStack) {
@@ -12,7 +10,6 @@ void TaggedString::addSection(const std::u16string& sectionText, double scale, F
 }
 
 void TaggedString::trim() {
-    auto whiteSpace = boost::algorithm::is_any_of(u" \t\n\v\f\r");
     std::size_t beginningWhitespace = styledText.first.find_first_not_of(u" \t\n\v\f\r");
     if (beginningWhitespace == std::u16string::npos) {
         // Entirely whitespace
diff --git a/src/mbgl/util/i18n.cpp b/src/mbgl/util/i18n.cpp
index 0fa6122673..66c9e027a7 100644
--- a/src/mbgl/util/i18n.cpp
+++ b/src/mbgl/util/i18n.cpp
@@ -618,6 +618,10 @@ bool isStringInSupportedScript(const std::string& input) {
     return true;
 }
 
+bool isWhitespace(char16_t chr) {
+    return chr == u' ' || chr == u'\t' || chr == u'\n' || chr == u'\v' || chr == u'\f' || chr == u'\r';
+}
+
 } // namespace i18n
 } // namespace util
 } // namespace mbgl
diff --git a/src/mbgl/util/i18n.hpp b/src/mbgl/util/i18n.hpp
index a74215a134..c7544f443b 100644
--- a/src/mbgl/util/i18n.hpp
+++ b/src/mbgl/util/i18n.hpp
@@ -75,6 +75,8 @@ char16_t verticalizePunctuation(char16_t chr);
     
 bool isStringInSupportedScript(const std::string& input);
 
+bool isWhitespace(char16_t chr);
+
 } // namespace i18n
 } // namespace util
 } // namespace mbgl
-- 
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