<div dir="ltr">Here are several more <a href="http://unicode.org/cldr/utility/list-unicodeset.jsp?a=%5B%5Cp%7BBlock%3DMiscellaneous+Technical%7D%0D%0A%5Cp%7BBlock%3DOptical+Character+Recognition%7D%0D%0A%5Cp%7BBlock%3DBox+Drawing%7D%0D%0A%5Cp%7BBlock%3DBlock+Elements%7D%0D%0A%5Cp%7BBlock%3DGeometric+Shapes%7D%0D%0A%5Cp%7BBlock%3DMiscellaneous+Symbols%7D%0D%0A%5Cp%7BBlock%3DDingbats%7D%0D%0A%5Cp%7BBlock%3DBraille%7D%0D%0A%5Cp%7BBlock%3DMiscellaneous+Symbols+And+Arrows%7D%0D%0A%5Cp%7BBlock%3DYijing+Hexagram+Symbols%7D%0D%0A%5Cp%7BBlock%3DMusical+Symbols%7D%0D%0A%5Cp%7BBlock%3DAncient+Greek+Musical+Notation%7D%0D%0A%5Cp%7BBlock%3DTai+Xuan+Jing+Symbols%7D%0D%0A%5Cp%7BBlock%3DMahjong+Tiles%7D%0D%0A%5Cp%7BBlock%3DDomino+Tiles%7D%0D%0A%5Cp%7BBlock%3DPlaying+Cards%7D%0D%0A%5Cp%7BBlock%3DOrnamental+Dingbats%7D%0D%0A%5Cp%7BBlock%3DAlchemical+Symbols%7D%0D%0A%5Cp%7BBlock%3DGeometric+Shapes+Extended%7D%0D%0A%5Cp%7BBlock%3DSupplemental+Arrows+C%7D%5D%0D%0A&amp;g=&amp;i=">Unicode blocks that contain characters we may want as operator symbols</a>. I have not gone through them at a detailed level, and many blocks I am simply unsure how we want to categorize.<div><br></div><div><div>[\p{Block=Miscellaneous Technical}</div><div>\p{Block=Optical Character Recognition}</div><div>\p{Block=Box Drawing}</div><div>\p{Block=Block Elements}</div><div>\p{Block=Geometric Shapes}</div><div>\p{Block=Miscellaneous Symbols}</div><div>\p{Block=Dingbats}</div><div>\p{Block=Braille}</div><div>\p{Block=Miscellaneous Symbols And Arrows}</div><div>\p{Block=Yijing Hexagram Symbols}</div><div>\p{Block=Musical Symbols}</div><div>\p{Block=Ancient Greek Musical Notation}</div><div>\p{Block=Tai Xuan Jing Symbols}</div><div>\p{Block=Mahjong Tiles}</div><div>\p{Block=Domino Tiles}</div><div>\p{Block=Playing Cards}</div><div>\p{Block=Ornamental Dingbats}</div><div>\p{Block=Alchemical Symbols}</div><div>\p{Block=Geometric Shapes Extended}</div><div>\p{Block=Supplemental Arrows C}]</div></div><div><br></div><div>Nevin</div><div><br></div></div>