pig.go

Documentation: github.com/alecthomas/chroma/lexers/p

     1  package p
     2  
     3  import (
     4  	. "github.com/alecthomas/chroma" // nolint
     5  	"github.com/alecthomas/chroma/lexers/internal"
     6  )
     7  
     8  // Pig lexer.
     9  var Pig = internal.Register(MustNewLazyLexer(
    10  	&Config{
    11  		Name:            "Pig",
    12  		Aliases:         []string{"pig"},
    13  		Filenames:       []string{"*.pig"},
    14  		MimeTypes:       []string{"text/x-pig"},
    15  		CaseInsensitive: true,
    16  	},
    17  	pigRules,
    18  ))
    19  
    20  func pigRules() Rules {
    21  	return Rules{
    22  		"root": {
    23  			{`\s+`, Text, nil},
    24  			{`--.*`, Comment, nil},
    25  			{`/\*[\w\W]*?\*/`, CommentMultiline, nil},
    26  			{`\\\n`, Text, nil},
    27  			{`\\`, Text, nil},
    28  			{`\'(?:\\[ntbrf\\\']|\\u[0-9a-f]{4}|[^\'\\\n\r])*\'`, LiteralString, nil},
    29  			Include("keywords"),
    30  			Include("types"),
    31  			Include("builtins"),
    32  			Include("punct"),
    33  			Include("operators"),
    34  			{`[0-9]*\.[0-9]+(e[0-9]+)?[fd]?`, LiteralNumberFloat, nil},
    35  			{`0x[0-9a-f]+`, LiteralNumberHex, nil},
    36  			{`[0-9]+L?`, LiteralNumberInteger, nil},
    37  			{`\n`, Text, nil},
    38  			{`([a-z_]\w*)(\s*)(\()`, ByGroups(NameFunction, Text, Punctuation), nil},
    39  			{`[()#:]`, Text, nil},
    40  			{`[^(:#\'")\s]+`, Text, nil},
    41  			{`\S+\s+`, Text, nil},
    42  		},
    43  		"keywords": {
    44  			{`(assert|and|any|all|arrange|as|asc|bag|by|cache|CASE|cat|cd|cp|%declare|%default|define|dense|desc|describe|distinct|du|dump|eval|exex|explain|filter|flatten|foreach|full|generate|group|help|if|illustrate|import|inner|input|into|is|join|kill|left|limit|load|ls|map|matches|mkdir|mv|not|null|onschema|or|order|outer|output|parallel|pig|pwd|quit|register|returns|right|rm|rmf|rollup|run|sample|set|ship|split|stderr|stdin|stdout|store|stream|through|union|using|void)\b`, Keyword, nil},
    45  		},
    46  		"builtins": {
    47  			{`(AVG|BinStorage|cogroup|CONCAT|copyFromLocal|copyToLocal|COUNT|cross|DIFF|MAX|MIN|PigDump|PigStorage|SIZE|SUM|TextLoader|TOKENIZE)\b`, NameBuiltin, nil},
    48  		},
    49  		"types": {
    50  			{`(bytearray|BIGINTEGER|BIGDECIMAL|chararray|datetime|double|float|int|long|tuple)\b`, KeywordType, nil},
    51  		},
    52  		"punct": {
    53  			{`[;(){}\[\]]`, Punctuation, nil},
    54  		},
    55  		"operators": {
    56  			{`[#=,./%+\-?]`, Operator, nil},
    57  			{`(eq|gt|lt|gte|lte|neq|matches)\b`, Operator, nil},
    58  			{`(==|<=|<|>=|>|!=)`, Operator, nil},
    59  		},
    60  	}
    61  }
    62
View as plain text