Support VBNet language and new style

[myhorcrux]

I write a small blog about VBA in Microsoft Ofice and currently using Hugo. I don't want to use any client-side (even lightweight) syntax highlighter. However, Chroma now is not supporting VBnet language. Can you add more languages and styles? The Prismjs client-side syntax hightlighting provide JS file and CSS file for languages and styles. I think you can reuse them for lexers. Thanks a lot

[alecthomas]

You’ll need to find a Pygments lexer for the language. Link them here and it’s not too difficult to convert them.

[myhorcrux]

Thanks you for reply. I think that lexer is regex in nature. In this link and select "Development version" at "Compression level", you will see the JS file near the end of page. It contains the lexer written in JavaScript.

Prism.languages.basic = {
    'comment': {
        pattern: /(?:!|REM\b).+/i,
        inside: {
            'keyword': /^REM/i
        }
    },
    'string': {
        pattern: /"(?:""|[!#$%&'()*,\/:;<=>?^_ +\-.A-Z\d])*"/i,
        greedy: true
    },
    'number': /(?:\b\d+\.?\d*|\B\.\d+)(?:E[+-]?\d+)?/i,
    'keyword': /\b(?:AS|BEEP|BLOAD|BSAVE|CALL(?: ABSOLUTE)?|CASE|CHAIN|CHDIR|CLEAR|CLOSE|CLS|COM|COMMON|CONST|DATA|DECLARE|DEF(?: FN| SEG|DBL|INT|LNG|SNG|STR)|DIM|DO|DOUBLE|ELSE|ELSEIF|END|ENVIRON|ERASE|ERROR|EXIT|FIELD|FILES|FOR|FUNCTION|GET|GOSUB|GOTO|IF|INPUT|INTEGER|IOCTL|KEY|KILL|LINE INPUT|LOCATE|LOCK|LONG|LOOP|LSET|MKDIR|NAME|NEXT|OFF|ON(?: COM| ERROR| KEY| TIMER)?|OPEN|OPTION BASE|OUT|POKE|PUT|READ|REDIM|REM|RESTORE|RESUME|RETURN|RMDIR|RSET|RUN|SHARED|SINGLE|SELECT CASE|SHELL|SLEEP|STATIC|STEP|STOP|STRING|SUB|SWAP|SYSTEM|THEN|TIMER|TO|TROFF|TRON|TYPE|UNLOCK|UNTIL|USING|VIEW PRINT|WAIT|WEND|WHILE|WRITE)(?:\$|\b)/i,
    'function': /\b(?:ABS|ACCESS|ACOS|ANGLE|AREA|ARITHMETIC|ARRAY|ASIN|ASK|AT|ATN|BASE|BEGIN|BREAK|CAUSE|CEIL|CHR|CLIP|COLLATE|COLOR|CON|COS|COSH|COT|CSC|DATE|DATUM|DEBUG|DECIMAL|DEF|DEG|DEGREES|DELETE|DET|DEVICE|DISPLAY|DOT|ELAPSED|EPS|ERASABLE|EXLINE|EXP|EXTERNAL|EXTYPE|FILETYPE|FIXED|FP|GO|GRAPH|HANDLER|IDN|IMAGE|IN|INT|INTERNAL|IP|IS|KEYED|LBOUND|LCASE|LEFT|LEN|LENGTH|LET|LINE|LINES|LOG|LOG10|LOG2|LTRIM|MARGIN|MAT|MAX|MAXNUM|MID|MIN|MISSING|MOD|NATIVE|NUL|NUMERIC|OF|OPTION|ORD|ORGANIZATION|OUTIN|OUTPUT|PI|POINT|POINTER|POINTS|POS|PRINT|PROGRAM|PROMPT|RAD|RADIANS|RANDOMIZE|RECORD|RECSIZE|RECTYPE|RELATIVE|REMAINDER|REPEAT|REST|RETRY|REWRITE|RIGHT|RND|ROUND|RTRIM|SAME|SEC|SELECT|SEQUENTIAL|SET|SETTER|SGN|SIN|SINH|SIZE|SKIP|SQR|STANDARD|STATUS|STR|STREAM|STYLE|TAB|TAN|TANH|TEMPLATE|TEXT|THERE|TIME|TIMEOUT|TRACE|TRANSFORM|TRUNCATE|UBOUND|UCASE|USE|VAL|VARIABLE|VIEWPORT|WHEN|WINDOW|WITH|ZER|ZONEWIDTH)(?:\$|\b)/i,
    'operator': /<[=>]?|>=?|[+\-*\/^=&]|\b(?:AND|EQV|IMP|NOT|OR|XOR)\b/i,
    'punctuation': /[,;:()]/
};
Prism.languages.vbnet = Prism.languages.extend("basic", {
    'keyword': /(?:\b(?:ADDHANDLER|ADDRESSOF|ALIAS|AND|ANDALSO|AS|BEEP|BLOAD|BOOLEAN|BSAVE|BYREF|BYTE|BYVAL|CALL(?: ABSOLUTE)?|CASE|CATCH|CBOOL|CBYTE|CCHAR|CDATE|CDEC|CDBL|CHAIN|CHAR|CHDIR|CINT|CLASS|CLEAR|CLNG|CLOSE|CLS|COBJ|COM|COMMON|CONST|CONTINUE|CSBYTE|CSHORT|CSNG|CSTR|CTYPE|CUINT|CULNG|CUSHORT|DATA|DATE|DECIMAL|DECLARE|DEFAULT|DEF(?: FN| SEG|DBL|INT|LNG|SNG|STR)|DELEGATE|DIM|DIRECTCAST|DO|DOUBLE|ELSE|ELSEIF|END|ENUM|ENVIRON|ERASE|ERROR|EVENT|EXIT|FALSE|FIELD|FILES|FINALLY|FOR(?: EACH)?|FRIEND|FUNCTION|GET|GETTYPE|GETXMLNAMESPACE|GLOBAL|GOSUB|GOTO|HANDLES|IF|IMPLEMENTS|IMPORTS|IN|INHERITS|INPUT|INTEGER|INTERFACE|IOCTL|IS|ISNOT|KEY|KILL|LINE INPUT|LET|LIB|LIKE|LOCATE|LOCK|LONG|LOOP|LSET|ME|MKDIR|MOD|MODULE|MUSTINHERIT|MUSTOVERRIDE|MYBASE|MYCLASS|NAME|NAMESPACE|NARROWING|NEW|NEXT|NOT|NOTHING|NOTINHERITABLE|NOTOVERRIDABLE|OBJECT|OF|OFF|ON(?: COM| ERROR| KEY| TIMER)?|OPERATOR|OPEN|OPTION(?: BASE)?|OPTIONAL|OR|ORELSE|OUT|OVERLOADS|OVERRIDABLE|OVERRIDES|PARAMARRAY|PARTIAL|POKE|PRIVATE|PROPERTY|PROTECTED|PUBLIC|PUT|RAISEEVENT|READ|READONLY|REDIM|REM|REMOVEHANDLER|RESTORE|RESUME|RETURN|RMDIR|RSET|RUN|SBYTE|SELECT(?: CASE)?|SET|SHADOWS|SHARED|SHORT|SINGLE|SHELL|SLEEP|STATIC|STEP|STOP|STRING|STRUCTURE|SUB|SYNCLOCK|SWAP|SYSTEM|THEN|THROW|TIMER|TO|TROFF|TRON|TRUE|TRY|TRYCAST|TYPE|TYPEOF|UINTEGER|ULONG|UNLOCK|UNTIL|USHORT|USING|VIEW PRINT|WAIT|WEND|WHEN|WHILE|WIDENING|WITH|WITHEVENTS|WRITE|WRITEONLY|XOR)|\B(?:#CONST|#ELSE|#ELSEIF|#END|#IF))(?:\$|\b)/i,
    'comment': [
        {
            pattern: /(?:!|REM\b).+/i,
            inside: {
                'keyword': /^REM/i
            }
        },
        {
            pattern: /(^|[^\\:])'.*/,
            lookbehind: true
        }
    ]
});

Many thanks

[Jos512]

The Pygments lexer for VBA is here: https://bitbucket.org/birkenfeld/pygments-main/src/f6637a95d0d8534abb2c1e128e3d5c88d09e96e3/pygments/lexers/dotnet.py?at=default&fileviewer=file-view-default#dotnet.py-366

[alecthomas]

Thanks @Jos512 !

@myhorcrux a non-Pygments lexer is slightly useful, but still a lot of work. If you want a language supported you'll either need to a) find a Pygments lexer for it or b) write it yourself, as I don't have time to write new lexers from scratch.