support SAS language

[zearoby]

Describe the feature

Hi,
Could anyone provides SAS language highlight?

Use Case

SAS is a widely used statistical language.

Proposed Solution

No response

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

ACE version used

any version

[InspiredGuy]

Hi @Mr-ZBin, thank you for your request. Are there any formal syntax rules defined for SAS language which could be used to make a set of syntax highlighting rules? A PR to implement those would be welcome, see an example #5356

[zearoby]

Hi @InspiredGuy, I'm not good at this project, but I'll try it. And there are some contents for your reference to this request.
SAS-Syntax in Visual Studio Code
SAS in pygments

Below code is what I did in mode_creator. I don't know how to use below code for the ace editor (R -> shinyAce -> aceEditor) as a mode.
Thanks for your help.

"use strict";

var oop = require("../lib/oop");
var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;

var SASHighlightRules = function () {

    var builtins_macros = (
        "bquote|nrbquote|cmpres|qcmpres|compstor|datatyp|" +
        "display|do|else|end|eval|global|goto|if|" +
        "index|input|keydef|label|left|length|let|" +
        "local|lowcase|macro|mend|nrquote|" +
        "nrstr|put|qleft|qlowcase|qscan|" +
        "qsubstr|qsysfunc|qtrim|quote|qupcase|scan|" +
        "str|substr|superq|syscall|sysevalf|sysexec|" +
        "sysfunc|sysget|syslput|sysprod|sysrc|sysrput|" +
        "then|to|trim|unquote|until|upcase|verify|" +
        "while|window"
    );

    var builtins_block = (
        "data|proc|run|quit"
    );

    var builtins_conditionals = (
        "do|if|then|else|end|until|while"
    );

    var builtins_operators = (
        "eq|gt|ge|le|lt|ne"
    );

    var builtins_statements = (
        "abort|array|attrib|by|call|cards|cards4|" +
        "catname|continue|datalines|datalines4|delete|delim|" +
        "delimiter|display|dm|drop|endsas|error|file|" +
        "filename|footnote|format|goto|in|infile|informat|" +
        "input|keep|keestorage.modifierp|label|leave|length|libname|link|" +
        "list|lostcard|merge|missing|modify|options|output|" +
        "out|page|put|redirect|remove|rename|replace|" +
        "retain|return|select|set|skip|startsas|stop|" +
        "title|update|waitsas|where|window|x|systask"
    );

    var builtins_sql = (
        "add|and|alter|as|cascade|check|create|" +
        "delete|describe|distinct|drop|foreign|from|" +
        "group|having|index|insert|into|in|key|like|" +
        "message|modify|msgtype|not|null|on|or|" +
        "order|primary|references|reset|restrict|select|" +
        "set|table|unique|update|validate|view|where"
    );

    var builtins_functions = (
        "abs|addr|airy|arcos|arsin|atan|attrc|" +
        "attrn|band|betainv|blshift|bnot|bor|" +
        "brshift|bxor|byte|cdf|ceil|cexist|cinv|" +
        "close|cnonct|collate|compbl|compound|" +
        "compress|cos|cosh|css|curobs|cv|daccdb|" +
        "daccdbsl|daccsl|daccsyd|dacctab|dairy|date|" +
        "datejul|datepart|datetime|day|dclose|depdb|" +
        "depdbsl|depsl|depsyd|" +
        "deptab|dequote|dhms|dif|digamma|" +
        "dim|dinfo|dnum|dopen|doptname|doptnum|" +
        "dread|dropnote|dsname|erf|erfc|exist|exp|" +
        "fappend|fclose|fcol|fdelete|fetch|fetchobs|" +
        "fexist|fget|fileexist|filename|fileref|" +
        "finfo|finv|fipname|fipnamel|fipstate|floor|" +
        "fnonct|fnote|fopen|foptname|foptnum|fpoint|" +
        "fpos|fput|fread|frewind|frlen|fsep|fuzz|" +
        "fwrite|gaminv|gamma|getoption|getvarc|getvarn|" +
        "hbound|hms|hosthelp|hour|ibessel|index|" +
        "indexc|indexw|input|inputc|inputn|int|" +
        "intck|intnx|intrr|irr|jbessel|juldate|" +
        "kurtosis|lag|lbound|left|length|lgamma|" +
        "libname|libref|log|log10|log2|logpdf|logpmf|" +
        "logsdf|lowcase|max|mdy|mean|min|minute|" +
        "mod|month|mopen|mort|n|netpv|nmiss|" +
        "normal|note|npv|open|ordinal|pathname|" +
        "pdf|peek|peekc|pmf|point|poisson|poke|" +
        "probbeta|probbnml|probchi|probf|probgam|" +
        "probhypr|probit|probnegb|probnorm|probt|" +
        "put|putc|putn|qtr|quote|ranbin|rancau|" +
        "ranexp|rangam|range|rank|rannor|ranpoi|" +
        "rantbl|rantri|ranuni|repeat|resolve|reverse|" +
        "rewind|right|round|saving|scan|sdf|second|" +
        "sign|sin|sinh|skewness|soundex|spedis|" +
        "sqrt|std|stderr|stfips|stname|stnamel|" +
        "substr|sum|symget|sysget|sysmsg|sysprod|" +
        "sysrc|system|tan|tanh|time|timepart|tinv|" +
        "tnonct|today|translate|tranwrd|trigamma|" +
        "trim|trimn|trunc|uniform|upcase|uss|var|" +
        "varfmt|varinfmt|varlabel|varlen|varname|" +
        "varnum|varray|varrayx|vartype|verify|vformat|" +
        "vformatd|vformatdx|vformatn|vformatnx|vformatw|" +
        "vformatwx|vformatx|vinarray|vinarrayx|vinformat|" +
        "vinformatd|vinformatdx|vinformatn|vinformatnx|" +
        "vinformatw|vinformatwx|vinformatx|vlabel|" +
        "vlabelx|vlength|vlengthx|vname|vnamex|vtype|" +
        "vtypex|weekday|year|yyq|zipfips|zipname|" +
        "zipnamel|zipstate"
    );

    var keywordMapper = this.createKeywordMapper({
        "variable.language": builtins_macros,
        "constant.language": builtins_block,
        "keyword.control": builtins_conditionals,
        "keyword.operator": builtins_operators,
        "keyword": builtins_statements + "|" + builtins_sql,
        "support.function": builtins_functions
    }, "identifier");


    this.$rules = {
        "start": [
            {
                token: "comment.line", // multi line comment
                regex: "\\%?\\*",
                next: "line_comment"
            },
            {
                token: "comment.block", // multi line comment
                regex: "\\/\\*",
                next: "comment"
            }, 
            {
                token: "string.double",
                start: '"',
                end: '"'
            },
            {
                token: "string.single",
                start: "'",
                end: "'"
            }, 
            {
                token: "constant.numeric", // hex
                regex: "0[xX][0-9a-fA-F]+\\b"
            }, 
            {
                token: "constant.numeric", // float
                regex: "\\b[+-]?\\d+(?:(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)?\\b"
            }, 
            {
                token: "variable.parameter", // call macro (or function)
                regex: "\\%[a-zA-Z_]\\w*\\b"
            }, 
            {
                token: "variable", // macro variable
                regex: "\\&+[a-zA-Z_]\\w*\\.?"
            }, 
            {
                token: "storage.type", // variable length definition
                regex: "\\$\\d+\\.?"
            }, 
            {
                include: "constants"
            }
        ],
        "comment": [
            {
                token: "comment.block", // closing comment
                regex: "\\*\\/",
                next: "start"
            }, {
                defaultToken: "comment"
            }
        ],
        "line_comment": [
            {
                token: "comment.line", // closing comment
                regex: "\\;",
                next: "start"
            }, {
                defaultToken: "comment"
            }
        ],
        "constants": [{
            token: keywordMapper,
            regex: "[a-zA-Z_]\\w*\\b"
        }]
    };
    this.normalizeRules();
};

oop.inherits(SASHighlightRules, TextHighlightRules);

exports.SASHighlightRules = SASHighlightRules;

[zearoby]

Hi @InspiredGuy, I solved my issue and you can refer it in shinyAce issue.

[InspiredGuy]

Thank you @Mr-ZBin, a PR with your changes would be appreciated. You can follow the example in this PR #5356 to see where you need to put the new mode files, and which files you need to modify in order to make your mode available on the demo page and in TypeScript. Tests for the highlight rules are welcome as well.

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