From add62fbfa054d10e046fb4dc836a64e1e638ab5c Mon Sep 17 00:00:00 2001
From: Leon Mika <lmika@lmika.org>
Date: Tue, 8 Sep 2026 22:03:41 +1000
Subject: [PATCH] Added map-lines and upgraded UCL

---
 .idea/dequoter.iml                |  1 +
 app.go                            |  2 ++
 frontend/wailsjs/go/main/App.d.ts |  2 ++
 frontend/wailsjs/go/main/App.js   |  4 +++
 go.mod                            |  2 +-
 go.sum                            |  6 ++--
 plugins.go                        | 51 +++++++++++++++++++++++++++++--
 7 files changed, 63 insertions(+), 5 deletions(-)

diff --git a/.idea/dequoter.iml b/.idea/dequoter.iml
index 5e764c4..9c408cc 100644
--- a/.idea/dequoter.iml
+++ b/.idea/dequoter.iml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="WEB_MODULE" version="4">
   <component name="Go" enabled="true" />
+  <component name="GoModuleSettings" enabled="true" />
   <component name="NewModuleRootManager">
     <content url="file://$MODULE_DIR$" />
     <orderEntry type="inheritedJdk" />
diff --git a/app.go b/app.go
index e46d5b9..37d2bd1 100644
--- a/app.go
+++ b/app.go
@@ -32,6 +32,7 @@ type App struct {
 func newUCLInst(plugins *PluginFilters) *ucl.Inst {
 	return ucl.New(
 		ucl.WithModule(plugins.Module()),
+		ucl.WithModule(builtins.Bytes()),
 		ucl.WithModule(builtins.CSV(nil)),
 		ucl.WithModule(builtins.Fns()),
 		ucl.WithModule(builtins.FS(nil)),
@@ -41,6 +42,7 @@ func newUCLInst(plugins *PluginFilters) *ucl.Inst {
 		ucl.WithModule(builtins.OS()),
 		ucl.WithModule(builtins.Strs()),
 		ucl.WithModule(builtins.Time()),
+		ucl.WithModule(builtins.URLs()),
 	)
 }
 
diff --git a/frontend/wailsjs/go/main/App.d.ts b/frontend/wailsjs/go/main/App.d.ts
index 56c40cf..f44f801 100755
--- a/frontend/wailsjs/go/main/App.d.ts
+++ b/frontend/wailsjs/go/main/App.d.ts
@@ -10,6 +10,8 @@ export function ProcessText(arg1:main.ProcessTextRequest):Promise<void>;
 
 export function PromptUser(arg1:string,arg2:any):Promise<void>;
 
+export function ReloadPlugins():Promise<void>;
+
 export function SaveCurrentBuffer(arg1:string):Promise<void>;
 
 export function TriggerTextProcess(arg1:string):Promise<void>;
diff --git a/frontend/wailsjs/go/main/App.js b/frontend/wailsjs/go/main/App.js
index 144d9f3..78a313d 100755
--- a/frontend/wailsjs/go/main/App.js
+++ b/frontend/wailsjs/go/main/App.js
@@ -18,6 +18,10 @@ export function PromptUser(arg1, arg2) {
   return window['go']['main']['App']['PromptUser'](arg1, arg2);
 }
 
+export function ReloadPlugins() {
+  return window['go']['main']['App']['ReloadPlugins']();
+}
+
 export function SaveCurrentBuffer(arg1) {
   return window['go']['main']['App']['SaveCurrentBuffer'](arg1);
 }
diff --git a/go.mod b/go.mod
index 9a8d136..d967a05 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	gopkg.in/yaml.v3 v3.0.1
 	lmika.dev/pkg/modash v0.1.0
 	lmika.dev/pkg/progdoc v0.0.0-20260207235039-984257fb414b
-	ucl.lmika.dev v0.1.3
+	ucl.lmika.dev v0.1.7
 )
 
 require (
diff --git a/go.sum b/go.sum
index 04dd12d..94bf82c 100644
--- a/go.sum
+++ b/go.sum
@@ -796,5 +796,7 @@ lmika.dev/pkg/modash v0.1.0/go.mod h1:8NDl/yR1eCCEhip9FJlVuMNXIeaztQ0Ks/tizExFcT
 lmika.dev/pkg/progdoc v0.0.0-20260207235039-984257fb414b h1:uarBEkpjAnpzO98btsA6ZDw9oGnJX8zSb8gZnCFl+6Y=
 lmika.dev/pkg/progdoc v0.0.0-20260207235039-984257fb414b/go.mod h1:GefQ+wxW6L0p2TfB4fzoP7ihOgEt5Lb/1qgXhruVHos=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
-ucl.lmika.dev v0.1.3 h1:Y2m+ORnLMA8boQmkXpW41VbkR3bwmnZjDLGVTYbZQic=
-ucl.lmika.dev v0.1.3/go.mod h1:Hjl6Udph2yuOPcBSytz4SFJVt5MZbM5JyiSAyTMTbNU=
+ucl.lmika.dev v0.1.6 h1:cZocpR/IQcy9nvE8u+SSLY7/PE9fd1HIVWhZr/m+U5M=
+ucl.lmika.dev v0.1.6/go.mod h1:Hjl6Udph2yuOPcBSytz4SFJVt5MZbM5JyiSAyTMTbNU=
+ucl.lmika.dev v0.1.7 h1:3yfvWOhBnWpQIm4NhKrUBh5PajB1wzUWzoPPa8ltaVo=
+ucl.lmika.dev v0.1.7/go.mod h1:Hjl6Udph2yuOPcBSytz4SFJVt5MZbM5JyiSAyTMTbNU=
diff --git a/plugins.go b/plugins.go
index 86dc977..baaf476 100644
--- a/plugins.go
+++ b/plugins.go
@@ -1,6 +1,8 @@
 package main
 
 import (
+	"bufio"
+	"bytes"
 	"context"
 	"errors"
 	"fmt"
@@ -18,7 +20,6 @@ const pluginKeyPrefix = "plugin:"
 
 // PluginFilters is the registry of text filters defined by UCL plugin files.
 type PluginFilters struct {
-	inst    *ucl.Inst
 	filters map[string]TextProcessor
 	errors  []error
 }
@@ -34,7 +35,8 @@ func (p *PluginFilters) Module() ucl.Module {
 	return ucl.Module{
 		Name: "d",
 		Builtins: map[string]ucl.BuiltinHandler{
-			"filter": p.filterBuiltin,
+			"filter":    p.filterBuiltin,
+			"map-lines": p.mapLinesBuiltin,
 		},
 	}
 }
@@ -78,6 +80,51 @@ func (p *PluginFilters) filterBuiltin(ctx context.Context, args ucl.CallArgs) (a
 	return nil, nil
 }
 
+// mapLinesBuiltin implements `d:map-lines INPUT PROC` which applies a transform for each line of the input.
+func (p *PluginFilters) mapLinesBuiltin(ctx context.Context, args ucl.CallArgs) (any, error) {
+	var (
+		input string
+		proc  ucl.Invokable
+	)
+
+	if err := args.Bind(&input, &proc); err != nil {
+		return nil, fmt.Errorf("d:map-lines: expected INPUT and PROC: %w", err)
+	}
+
+	var (
+		dst     bytes.Buffer
+		dstLine bytes.Buffer
+	)
+
+	scnr := bufio.NewScanner(strings.NewReader(input))
+	isFirst := true
+	for scnr.Scan() {
+		dstLine.Reset()
+		line := scnr.Text()
+
+		out, err := proc.Invoke(ctx, line)
+		if err != nil {
+			return TextFilterResponse{}, err
+		} else if out == nil {
+			continue
+		} else if strOut, ok := out.(fmt.Stringer); ok {
+			dstLine.WriteString(strOut.String())
+		} else {
+			dstLine.WriteString(fmt.Sprint(out))
+		}
+
+		if isFirst {
+			isFirst = false
+		} else {
+			dst.WriteString("\n")
+		}
+
+		dst.WriteString(dstLine.String())
+	}
+
+	return dst.String(), nil
+}
+
 // LoadDir evaluates every *.ucl file found under dir (recursively, in lexical order). Files
 // that fail to load are recorded in Errors() and skipped; loading continues with the rest.
 // A missing directory is not an error.