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diff --git a/src/base/attr_line.builder.hh b/src/base/attr_line.builder.hh
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+/**
+ * Copyright (c) 2022, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef lnav_attr_line_builder_hh
+#define lnav_attr_line_builder_hh
+
+#include <utility>
+
+#include "attr_line.hh"
+
+class attr_line_builder {
+public:
+    explicit attr_line_builder(attr_line_t& al) : alb_line(al) {}
+
+    class attr_guard {
+    public:
+        attr_guard(attr_line_t& al, string_attr_pair sap)
+            : ag_line(al), ag_start(al.get_string().length()),
+              ag_attr(std::move(sap))
+        {
+        }
+
+        attr_guard(const attr_guard&) = delete;
+
+        attr_guard& operator=(const attr_guard&) = delete;
+
+        attr_guard(attr_guard&& other) noexcept
+            : ag_line(other.ag_line), ag_start(other.ag_start),
+              ag_attr(std::move(other.ag_attr))
+        {
+            other.ag_start = nonstd::nullopt;
+        }
+
+        ~attr_guard()
+        {
+            if (this->ag_start) {
+                this->ag_line.al_attrs.emplace_back(
+                    line_range{
+                        this->ag_start.value(),
+                        (int) this->ag_line.get_string().length(),
+                    },
+                    this->ag_attr);
+            }
+        }
+
+    private:
+        attr_line_t& ag_line;
+        nonstd::optional<int> ag_start;
+        string_attr_pair ag_attr;
+    };
+
+    attr_guard with_attr(string_attr_pair sap)
+    {
+        return {this->alb_line, std::move(sap)};
+    }
+
+    template<typename... Args>
+    attr_line_builder& overlay_attr(Args... args)
+    {
+        this->alb_line.al_attrs.template emplace_back(args...);
+        return *this;
+    }
+
+    template<typename... Args>
+    attr_line_builder& overlay_attr_for_char(int index, Args... args)
+    {
+        this->alb_line.al_attrs.template emplace_back(
+            line_range{index, index + 1}, args...);
+        return *this;
+    }
+
+    template<typename... Args>
+    attr_line_builder& append(Args... args)
+    {
+        this->alb_line.append(args...);
+
+        return *this;
+    }
+
+    attr_line_builder& indent(size_t amount)
+    {
+        auto pre = this->with_attr(SA_PREFORMATTED.value());
+
+        this->append(amount, ' ');
+
+        return *this;
+    }
+
+private:
+    attr_line_t& alb_line;
+};
+
+#endif