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Files
chroma/lexers/d/diff.go
Cameron Moore 59126c5b32 Add NewLazyLexer to defer rules definitions and reduce init costs (#449)
Add NewLazyLexer and MustNewLazyLexer which accept a function that
returns the rules for the lexer.  This allows us to defer the rules
definitions until they're needed.

Lexers in a, g, s, and x packages have been updated to use the new lazy
lexer.
2021-02-08 12:16:49 +11:00

34 lines
724 B
Go

package d
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// Diff lexer.
var Diff = internal.Register(MustNewLazyLexer(
&Config{
Name: "Diff",
Aliases: []string{"diff", "udiff"},
EnsureNL: true,
Filenames: []string{"*.diff", "*.patch"},
MimeTypes: []string{"text/x-diff", "text/x-patch"},
},
diffRules,
))
func diffRules() Rules {
return Rules{
"root": {
{` .*\n`, Text, nil},
{`\+.*\n`, GenericInserted, nil},
{`-.*\n`, GenericDeleted, nil},
{`!.*\n`, GenericStrong, nil},
{`@.*\n`, GenericSubheading, nil},
{`([Ii]ndex|diff).*\n`, GenericHeading, nil},
{`=.*\n`, GenericHeading, nil},
{`.*\n`, Text, nil},
},
}
}