""" pygments.lexers.sas ~~~~~~~~~~~~~~~~~~~ Lexer for SAS. :copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS. :license: BSD, see LICENSE for details. """ import re from pygments.lexer import RegexLexer, include, words from pygments.token import Comment, Keyword, Name, Number, String, Text, \ Other, Generic __all__ = ['SASLexer'] class SASLexer(RegexLexer): """ For SAS files. .. versionadded:: 2.2 """ # Syntax from syntax/sas.vim by James Kidd name = 'SAS' aliases = ['sas'] filenames = ['*.SAS', '*.sas'] mimetypes = ['text/x-sas', 'text/sas', 'application/x-sas'] flags = re.IGNORECASE | re.MULTILINE 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" ) builtins_conditionals = ( "do", "if", "then", "else", "end", "until", "while" ) 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", "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" ) 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" ) 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" ) tokens = { 'root': [ include('comments'), include('proc-data'), include('cards-datalines'), include('logs'), include('general'), (r'.', Text), ], # SAS is multi-line regardless, but * is ended by ; 'comments': [ (r'^\s*\*.*?;', Comment), (r'/\*.*?\*/', Comment), (r'^\s*\*(.|\n)*?;', Comment.Multiline), (r'/[*](.|\n)*?[*]/', Comment.Multiline), ], # Special highlight for proc, data, quit, run 'proc-data': [ (r'(^|;)\s*(proc \w+|data|run|quit)[\s;]', Keyword.Reserved), ], # Special highlight cards and datalines 'cards-datalines': [ (r'^\s*(datalines|cards)\s*;\s*$', Keyword, 'data'), ], 'data': [ (r'(.|\n)*^\s*;\s*$', Other, '#pop'), ], # Special highlight for put NOTE|ERROR|WARNING (order matters) 'logs': [ (r'\n?^\s*%?put ', Keyword, 'log-messages'), ], 'log-messages': [ (r'NOTE(:|-).*', Generic, '#pop'), (r'WARNING(:|-).*', Generic.Emph, '#pop'), (r'ERROR(:|-).*', Generic.Error, '#pop'), include('general'), ], 'general': [ include('keywords'), include('vars-strings'), include('special'), include('numbers'), ], # Keywords, statements, functions, macros 'keywords': [ (words(builtins_statements, prefix = r'\b', suffix = r'\b'), Keyword), (words(builtins_sql, prefix = r'\b', suffix = r'\b'), Keyword), (words(builtins_conditionals, prefix = r'\b', suffix = r'\b'), Keyword), (words(builtins_macros, prefix = r'%', suffix = r'\b'), Name.Builtin), (words(builtins_functions, prefix = r'\b', suffix = r'\('), Name.Builtin), ], # Strings and user-defined variables and macros (order matters) 'vars-strings': [ (r'&[a-z_]\w{0,31}\.?', Name.Variable), (r'%[a-z_]\w{0,31}', Name.Function), (r'\'', String, 'string_squote'), (r'"', String, 'string_dquote'), ], 'string_squote': [ ('\'', String, '#pop'), (r'\\\\|\\"|\\\n', String.Escape), # AFAIK, macro variables are not evaluated in single quotes # (r'&', Name.Variable, 'validvar'), (r'[^$\'\\]+', String), (r'[$\'\\]', String), ], 'string_dquote': [ (r'"', String, '#pop'), (r'\\\\|\\"|\\\n', String.Escape), (r'&', Name.Variable, 'validvar'), (r'[^$&"\\]+', String), (r'[$"\\]', String), ], 'validvar': [ (r'[a-z_]\w{0,31}\.?', Name.Variable, '#pop'), ], # SAS numbers and special variables 'numbers': [ (r'\b[+-]?([0-9]+(\.[0-9]+)?|\.[0-9]+|\.)(E[+-]?[0-9]+)?i?\b', Number), ], 'special': [ (r'(null|missing|_all_|_automatic_|_character_|_n_|' r'_infile_|_name_|_null_|_numeric_|_user_|_webout_)', Keyword.Constant), ], # 'operators': [ # (r'(-|=|<=|>=|<|>|<>|&|!=|' # r'\||\*|\+|\^|/|!|~|~=)', Operator) # ], }