U++ forum: Welcome to the forum

CodeEditor with user-definable syntax highlighting [message #36655]

Sun, 24 June 2012 10:01

dolik.rce
Messages: 1789
Registered: August 2008
Location: Czech Republic

Ultimate Contributor

Few days ago, I thought that it might be fun to reimplement CodeEditor to support user-defined highlighting as an excersise to avoid my brain slowly rotting from all that Java code I have to write at work Smile

I even started working on it in my free time, and here is a little tasting of the work done so far:
index.php?t=getfile&id=3785&private=0

The image shows CodeEditor using the highlight definition file specifying highlighting of higlighting definition files to highlight highlight definition file specifying highlighting of higlighting definition files. Pretty meta, right? Very Happy

It is based on pcre and caching. Basic highlighting works just fine, some of the higher level features (scope highlighting, matching brackets, ...) are not yet implemented and some are using the old CodeEditor code. The goal is to allow loading user specified highlighters, both at compile time (by include) and at run-time. It requires some pcre skill (or copy&paste skill Smile

) to write one, but otherwise it is very simple format as you can see above - it takes only 16 lines to describe C++ Smile

This file imitates current CodeEditor:

Quote:

HL_PATTERN(INK_OPERATOR, "[\\Q!+-*/\%&|=[]:?<>.~^\\E]")
HL_PATTERN(INK_KEYWORD, " \\b(__(asm|cdecl|declspec|except|fastcall|finally|inline|int (16|32|64|8)|leave|stdcall|try|uuidof)|auto|bool|break|case| catch|char|class|const|const_cast|continue|default|delete|dl l(ex|im)port|do|double|dynamic_cast|else|enum|explicit|exter n|false|float|for|force_inline|friend|goto|if|inline|int|lon g|mutable|namespace|new|operator|private|protected|public|re gister|reinterpret_cast|return|short|signed|sizeof|static|st atic_cast|struct|switch|template|this|thread|throw|true|try| typedef|typeid|typename|union|unsigned|using|virtual|void|vo latile|while)\\b ")
HL_PATTERN(INK_UPPER, "\\b[A-Z][A-Z_0-9]*\\b")
HL_PATTERN(INK_UPP, "\\bupp\\b")
HL_PATTERN(INK_MACRO, " ^[[:space:]]*#[[:space:]]*(define|include(_next)?|(un|ifn?)d ef|endif|el(if|se)|if|warning|error|pragma|using)\\b ")
HL_PATTERN(INK_UPPMACROS, " \\b(CLASSNAME|(THIS|PTE)BACK([1-4]?)|QUOTE|X?ASSERT|X?NEVER| X?CHECK|NAMESPACE_UPP|END_UPP_NAMESPACE|NEVER_|ASSERT_)\\b ")
HL_PATTERN(INK_UPPLOGS, " \\b([DLR]?DUMP(C|CC|CC|HEX|M)?|[DLR]?LOG(F|HEX|BEGIN|END|BLO CK|HEXDUMP|SRCPOS)?|[DLR]?TIMING|DEBUGCODE|RQUOTE)\\b ")
HL_PATTERN(INK_CONST_INT, "\\b[0-9]+\\b")
HL_PATTERN(INK_CONST_HEX, "\\b0(x|X)[[:xdigit:]]+\\b")
HL_PATTERN(INK_CONST_OCT, "\\b0[0-7]+\\b")
HL_PATTERN(INK_CONST_FLOAT, "\\b[0-9]+\\.[0-9]*\\b")
HL_PATTERN(INK_CONST_STRINGOP, "TODO")
HL_PATTERN(INK_CONST_STRING, "[\"](\\.|[^\"])*[\"]")
HL_PATTERN(INK_COMMENT, "//.*")
HL_PATTERN_ML(INK_COMMENT, "/\\*", "\\*/")
HL_SCOPE("[{]", "[}]")

Best regards,
Honza

PS: Reposted from this thread.

Report message to a moderator