From 2b001f07615926eec5261d3616227214020733e7 Mon Sep 17 00:00:00 2001
From: jason810496 <810496@email.wlsh.tyc.edu.tw>
Date: Fri, 21 Jun 2024 23:48:13 +0800
Subject: [PATCH] feat: add startLine and endLine support for codeimporter

---
 layouts/shortcodes/codeimporter.html | 27 +++++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/layouts/shortcodes/codeimporter.html b/layouts/shortcodes/codeimporter.html
index 493f4448..d461b5bb 100644
--- a/layouts/shortcodes/codeimporter.html
+++ b/layouts/shortcodes/codeimporter.html
@@ -1,8 +1,27 @@
 {{ $url := .Get "url" }}
 {{ $type := .Get "type" }}
-{{ with resources.GetRemote (urls.Parse $url) }}
-{{ $codeBlock := printf "```%s\n%s\n```" $type .Content }}
-{{ $codeBlock | markdownify }}
+{{ $startLine := .Get "startLine" | default 1 | int }}
+{{ $startLine = sub $startLine 1 }}
+{{ $endLine := .Get "endLine" | default -1 | int }}
+{{ $selectedLines := slice }}
+{{ with resources.GetRemote ( printf $url ) }}
+  {{ $lines := split .Content "\n" }}
+  {{ $totalLine := $lines | len }}
+
+  {{ if ne $endLine -1 }}
+    {{ $endLine = math.Min $endLine $totalLine }}
+  {{ else }}
+    {{ $endLine = $totalLine }}
+  {{ end }}
+  
+  {{ if gt $startLine $endLine }}
+    {{ errorf "Code Importer Shortcode - startLine is greater than endLine" . }}
+  {{ end }}
+
+  {{ $selectedLines := first $endLine $lines }}
+  {{ $selectedLines = after $startLine $selectedLines }}
+  {{ $codeBlock := printf "```%s\n%s\n```" $type (delimit $selectedLines "\n") }}
+  {{ $codeBlock | markdownify }}
 {{ else }}
-{{ errorf "Code Importer Shortcode - Unable to get remote resource" . }}
+  {{ errorf "Code Importer Shortcode - Unable to get remote resource" . }}
 {{ end }}