comparison vendor/github.com/alecthomas/chroma/v2/coalesce.go @ 66:787b5ee0289d draft

Use vendored modules Signed-off-by: Izuru Yakumo <yakumo.izuru@chaotic.ninja>
author yakumo.izuru
date Sun, 23 Jul 2023 13:18:53 +0000
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65:6d985efa0f7a 66:787b5ee0289d
1 package chroma
2
3 // Coalesce is a Lexer interceptor that collapses runs of common types into a single token.
4 func Coalesce(lexer Lexer) Lexer { return &coalescer{lexer} }
5
6 type coalescer struct{ Lexer }
7
8 func (d *coalescer) Tokenise(options *TokeniseOptions, text string) (Iterator, error) {
9 var prev Token
10 it, err := d.Lexer.Tokenise(options, text)
11 if err != nil {
12 return nil, err
13 }
14 return func() Token {
15 for token := it(); token != (EOF); token = it() {
16 if len(token.Value) == 0 {
17 continue
18 }
19 if prev == EOF {
20 prev = token
21 } else {
22 if prev.Type == token.Type && len(prev.Value) < 8192 {
23 prev.Value += token.Value
24 } else {
25 out := prev
26 prev = token
27 return out
28 }
29 }
30 }
31 out := prev
32 prev = EOF
33 return out
34 }, nil
35 }