X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;ds=sidebyside;f=src%2Funicode%2Funicodeformatter.cpp;fp=src%2Funicode%2Funicodeformatter.cpp;h=c89cc7c65ceffdbb95927fc35b2e5413df9b4a11;hb=56f67ecca96efc7b72d03c95c8c42cfb66e31468;hp=0000000000000000000000000000000000000000;hpb=f2545574af789b63fc655decfe31a3d9f1b30504;p=fms.git

diff --git a/src/unicode/unicodeformatter.cpp b/src/unicode/unicodeformatter.cpp
new file mode 100644
index 0000000..c89cc7c
--- /dev/null
+++ b/src/unicode/unicodeformatter.cpp
@@ -0,0 +1,78 @@
+#include "../../include/unicode/unicodeformatter.h"
+#include "../../include/unicode/utfconversion.h"
+
+std::wstring UnicodeFormatter::m_unicodenewline=L"\n";
+wchar_t UnicodeFormatter::m_unicodewhitespace[]={0x0009,0x000A,0x000B,0x000C,0x000D,
+												0x0020,0x0085,0x00A0,0x1680,0x180E,
+												0x2000,0x2001,0x2002,0x2003,0x2004,
+												0x2005,0x2006,0x2007,0x2008,0x2009,
+												0x200A,0x200B,0x2029,0x202F,0x205F,
+												0x3000,0xFEFF};
+
+const bool UnicodeFormatter::LineWrap(const std::string &utf8input, const int linelength, const std::string &ignorechars, std::string &utf8output)
+{
+	std::wstring wcstring;
+	std::wstring wcignorechars;
+
+	if(UTFConversion::FromUTF8(utf8input,wcstring) && UTFConversion::FromUTF8(ignorechars,wcignorechars))
+	{
+
+		std::wstring::size_type currentpos=0;
+		std::wstring::size_type lastnewlinepos=0;
+		std::wstring::size_type whitespacepos=0;
+
+		while(currentpos+linelength<wcstring.length())
+		{
+			if(ignorechars.size()==0 || wcstring.find_first_of(wcignorechars,currentpos)!=currentpos)
+			{
+				lastnewlinepos=wcstring.rfind(m_unicodenewline,currentpos+linelength);
+				// newline found within line length - we don't need to wrap
+				if(lastnewlinepos!=std::wstring::npos && lastnewlinepos>=currentpos)
+				{
+					currentpos=lastnewlinepos+1;
+				}
+				// newline doesn't exist at all - force one in
+				else if(lastnewlinepos==std::wstring::npos)
+				{
+					wcstring.insert(currentpos+linelength,m_unicodenewline);
+					currentpos+=linelength+m_unicodenewline.length();
+				}
+				else
+				{
+					whitespacepos=wcstring.find_last_of(m_unicodewhitespace,currentpos+linelength);
+					// whitespace found within line length - erase whitespace and insert newline
+					if(whitespacepos!=std::wstring::npos && whitespacepos>=currentpos)
+					{
+						wcstring.erase(whitespacepos,1);
+						wcstring.insert(whitespacepos,m_unicodenewline);
+						currentpos=whitespacepos+m_unicodenewline.length();
+					}
+					// whitespace not found within line length - force newline at line length
+					else
+					{
+						wcstring.insert(currentpos+linelength,m_unicodenewline);
+						currentpos+=linelength+m_unicodenewline.length();
+					}
+				}
+			}
+			else
+			{
+				currentpos=wcstring.find(m_unicodenewline,currentpos+1);
+				if(currentpos==std::string::npos)
+				{
+					currentpos=wcstring.size();
+				}
+				currentpos++;
+			}
+		}
+
+		if(UTFConversion::ToUTF8(wcstring,utf8output))
+		{
+			return true;
+		}
+
+	}
+
+	return false;
+
+}