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gitea/vendor/github.com/alecthomas/chroma/lexers/p/prolog.go

50 lines
1.9 KiB

This file contains unexpected Bidirectional Unicode characters!

This file contains unexpected Bidirectional Unicode characters that may be processed differently from what appears below. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to reveal hidden characters.

package p
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// Prolog lexer.
var Prolog = internal.Register(MustNewLexer(
&Config{
Name: "Prolog",
Aliases: []string{"prolog"},
Filenames: []string{"*.ecl", "*.prolog", "*.pro", "*.pl"},
MimeTypes: []string{"text/x-prolog"},
},
Rules{
"root": {
{`/\*`, CommentMultiline, Push("nested-comment")},
{`%.*`, CommentSingle, nil},
{`0\'.`, LiteralStringChar, nil},
{`0b[01]+`, LiteralNumberBin, nil},
{`0o[0-7]+`, LiteralNumberOct, nil},
{`0x[0-9a-fA-F]+`, LiteralNumberHex, nil},
{`\d\d?\'[a-zA-Z0-9]+`, LiteralNumberInteger, nil},
{`(\d+\.\d*|\d*\.\d+)([eE][+-]?[0-9]+)?`, LiteralNumberFloat, nil},
{`\d+`, LiteralNumberInteger, nil},
{`[\[\](){}|.,;!]`, Punctuation, nil},
{`:-|-->`, Punctuation, nil},
{`"(?:\\x[0-9a-fA-F]+\\|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|\\[0-7]+\\|\\["\nabcefnrstv]|[^\\"])*"`, LiteralStringDouble, nil},
{`'(?:''|[^'])*'`, LiteralStringAtom, nil},
{`is\b`, Operator, nil},
{`(<|>|=<|>=|==|=:=|=|/|//|\*|\+|-)(?=\s|[a-zA-Z0-9\[])`, Operator, nil},
{`(mod|div|not)\b`, Operator, nil},
{`_`, Keyword, nil},
{`([a-z]+)(:)`, ByGroups(NameNamespace, Punctuation), nil},
{`([a-zÀ-῿぀-퟿-￯][\w$À-῿぀-퟿-￯]*)(\s*)(:-|-->)`, ByGroups(NameFunction, Text, Operator), nil},
{`([a-zÀ-῿぀-퟿-￯][\w$À-῿぀-퟿-￯]*)(\s*)(\()`, ByGroups(NameFunction, Text, Punctuation), nil},
{`[a-zÀ-῿぀-퟿-￯][\w$À-῿぀-퟿-￯]*`, LiteralStringAtom, nil},
{`[#&*+\-./:<=>?@\\^~¡-¿‐-〿]+`, LiteralStringAtom, nil},
{`[A-Z_]\w*`, NameVariable, nil},
{`\s+|[ -￰-￾￯]`, Text, nil},
},
"nested-comment": {
{`\*/`, CommentMultiline, Pop(1)},
{`/\*`, CommentMultiline, Push()},
{`[^*/]+`, CommentMultiline, nil},
{`[*/]`, CommentMultiline, nil},
},
},
))