1 files changed, 35 insertions, 0 deletions

diff --git a/vendor/github.com/alecthomas/chroma/v2/coalesce.go b/vendor/github.com/alecthomas/chroma/v2/coalesce.go
new file mode 100644
index 0000000..f504895
--- /dev/null
+++ b/vendor/github.com/alecthomas/chroma/v2/coalesce.go
@@ -0,0 +1,35 @@
+package chroma
+
+// Coalesce is a Lexer interceptor that collapses runs of common types into a single token.
+func Coalesce(lexer Lexer) Lexer { return &coalescer{lexer} }
+
+type coalescer struct{ Lexer }
+
+func (d *coalescer) Tokenise(options *TokeniseOptions, text string) (Iterator, error) {
+        var prev Token
+        it, err := d.Lexer.Tokenise(options, text)
+        if err != nil {
+                return nil, err
+        }
+        return func() Token {
+                for token := it(); token != (EOF); token = it() {
+                        if len(token.Value) == 0 {
+                                continue
+                        }
+                        if prev == EOF {
+                                prev = token
+                        } else {
+                                if prev.Type == token.Type && len(prev.Value) < 8192 {
+                                        prev.Value += token.Value
+                                } else {
+                                        out := prev
+                                        prev = token
+                                        return out
+                                }
+                        }
+                }
+                out := prev
+                prev = EOF
+                return out
+        }, nil
+}