j.go

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

     1  package j
     2  
     3  import (
     4  	. "github.com/alecthomas/chroma" // nolint
     5  	"github.com/alecthomas/chroma/lexers/internal"
     6  )
     7  
     8  // J lexer.
     9  var J = internal.Register(MustNewLazyLexer(
    10  	&Config{
    11  		Name:      "J",
    12  		Aliases:   []string{"j"},
    13  		Filenames: []string{"*.ijs"},
    14  		MimeTypes: []string{"text/x-j"},
    15  	},
    16  	jRules,
    17  ))
    18  
    19  func jRules() Rules {
    20  	return Rules{
    21  		"root": {
    22  			{`#!.*$`, CommentPreproc, nil},
    23  			{`NB\..*`, CommentSingle, nil},
    24  			{`\n+\s*Note`, CommentMultiline, Push("comment")},
    25  			{`\s*Note.*`, CommentSingle, nil},
    26  			{`\s+`, Text, nil},
    27  			{`'`, LiteralString, Push("singlequote")},
    28  			{`0\s+:\s*0|noun\s+define\s*$`, NameEntity, Push("nounDefinition")},
    29  			{`(([1-4]|13)\s+:\s*0|(adverb|conjunction|dyad|monad|verb)\s+define)\b`, NameFunction, Push("explicitDefinition")},
    30  			{Words(``, `\b[a-zA-Z]\w*\.`, `for_`, `goto_`, `label_`), NameLabel, nil},
    31  			{Words(``, `\.`, `assert`, `break`, `case`, `catch`, `catchd`, `catcht`, `continue`, `do`, `else`, `elseif`, `end`, `fcase`, `for`, `if`, `return`, `select`, `throw`, `try`, `while`, `whilst`), NameLabel, nil},
    32  			{`\b[a-zA-Z]\w*`, NameVariable, nil},
    33  			{Words(``, ``, `ARGV`, `CR`, `CRLF`, `DEL`, `Debug`, `EAV`, `EMPTY`, `FF`, `JVERSION`, `LF`, `LF2`, `Note`, `TAB`, `alpha17`, `alpha27`, `apply`, `bind`, `boxopen`, `boxxopen`, `bx`, `clear`, `cutLF`, `cutopen`, `datatype`, `def`, `dfh`, `drop`, `each`, `echo`, `empty`, `erase`, `every`, `evtloop`, `exit`, `expand`, `fetch`, `file2url`, `fixdotdot`, `fliprgb`, `getargs`, `getenv`, `hfd`, `inv`, `inverse`, `iospath`, `isatty`, `isutf8`, `items`, `leaf`, `list`, `nameclass`, `namelist`, `names`, `nc`, `nl`, `on`, `pick`, `rows`, `script`, `scriptd`, `sign`, `sminfo`, `smoutput`, `sort`, `split`, `stderr`, `stdin`, `stdout`, `table`, `take`, `timespacex`, `timex`, `tmoutput`, `toCRLF`, `toHOST`, `toJ`, `tolower`, `toupper`, `type`, `ucp`, `ucpcount`, `usleep`, `utf8`, `uucp`), NameFunction, nil},
    34  			{`=[.:]`, Operator, nil},
    35  			{"[-=+*#$%@!~`^&\";:.,<>{}\\[\\]\\\\|/]", Operator, nil},
    36  			{`[abCdDeEfHiIjLMoprtT]\.`, KeywordReserved, nil},
    37  			{`[aDiLpqsStux]\:`, KeywordReserved, nil},
    38  			{`(_[0-9])\:`, KeywordConstant, nil},
    39  			{`\(`, Punctuation, Push("parentheses")},
    40  			Include("numbers"),
    41  		},
    42  		"comment": {
    43  			{`[^)]`, CommentMultiline, nil},
    44  			{`^\)`, CommentMultiline, Pop(1)},
    45  			{`[)]`, CommentMultiline, nil},
    46  		},
    47  		"explicitDefinition": {
    48  			{`\b[nmuvxy]\b`, NameDecorator, nil},
    49  			Include("root"),
    50  			{`[^)]`, Name, nil},
    51  			{`^\)`, NameLabel, Pop(1)},
    52  			{`[)]`, Name, nil},
    53  		},
    54  		"numbers": {
    55  			{`\b_{1,2}\b`, LiteralNumber, nil},
    56  			{`_?\d+(\.\d+)?(\s*[ejr]\s*)_?\d+(\.?=\d+)?`, LiteralNumber, nil},
    57  			{`_?\d+\.(?=\d+)`, LiteralNumberFloat, nil},
    58  			{`_?\d+x`, LiteralNumberIntegerLong, nil},
    59  			{`_?\d+`, LiteralNumberInteger, nil},
    60  		},
    61  		"nounDefinition": {
    62  			{`[^)]`, LiteralString, nil},
    63  			{`^\)`, NameLabel, Pop(1)},
    64  			{`[)]`, LiteralString, nil},
    65  		},
    66  		"parentheses": {
    67  			{`\)`, Punctuation, Pop(1)},
    68  			Include("explicitDefinition"),
    69  			Include("root"),
    70  		},
    71  		"singlequote": {
    72  			{`[^']`, LiteralString, nil},
    73  			{`''`, LiteralString, nil},
    74  			{`'`, LiteralString, Pop(1)},
    75  		},
    76  	}
    77  }
    78
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