source: code/trunk/vendor/github.com/alecthomas/chroma/v2/lexers/cheetah.go@ 67

package lexers

import (
        . "github.com/alecthomas/chroma/v2" // nolint
)

// Cheetah lexer.
var Cheetah = Register(MustNewLexer(
        &Config{
                Name:      "Cheetah",
                Aliases:   []string{"cheetah", "spitfire"},
                Filenames: []string{"*.tmpl", "*.spt"},
                MimeTypes: []string{"application/x-cheetah", "application/x-spitfire"},
        },
        cheetahRules,
))

func cheetahRules() Rules {
        return Rules{
                "root": {
                        {`(##[^\n]*)$`, ByGroups(Comment), nil},
                        {`#[*](.|\n)*?[*]#`, Comment, nil},
                        {`#end[^#\n]*(?:#|$)`, CommentPreproc, nil},
                        {`#slurp$`, CommentPreproc, nil},
                        {`(#[a-zA-Z]+)([^#\n]*)(#|$)`, ByGroups(CommentPreproc, Using("Python"), CommentPreproc), nil},
                        {`(\$)([a-zA-Z_][\w.]*\w)`, ByGroups(CommentPreproc, Using("Python")), nil},
                        {`(\$\{!?)(.*?)(\})(?s)`, ByGroups(CommentPreproc, Using("Python"), CommentPreproc), nil},
                        {`(?sx)
                (.+?)               # anything, followed by:
                (?:
                 (?=\#[#a-zA-Z]*) | # an eval comment
                 (?=\$[a-zA-Z_{]) | # a substitution
                 \Z                 # end of string
                )
            `, Other, nil},
                        {`\s+`, Text, nil},
                },
        }
}