Add 'sd' replace method

README.md

@@ -254,7 +254,11 @@ require('spectre').setup({
             desc = "ignore case"
           },
         }
-      }
+      },
+      ['sd'] = {
+        cmd = "sd",
+        options = { },
+      },
   },
   default = {
       find = {
@@ -325,7 +329,7 @@ option. This is the list of directories or files to search in, regardless of the
 
 ## Replace Method
 
-There are two replace methods `sed` and `oxi`.
+There are three replace methods `sed`, `oxi` and `sd`.
 
 | Sed                        | oxi                                 |
 | -------------------------- | ----------------------------------- |

doc/spectre.txt

@@ -319,7 +319,7 @@ CUSTOM FUNCTIONS ~
 
 REPLACE METHOD                                        *spectre-replace-method*
 
-There are two replace methods `sed` and `oxi`.
+There are three replace methods `sed`, `oxi` and `sd`.
 
 │           Sed            │                oxi                │
 │group number by '\0'      │group number by '${0}'             │

lua/spectre/config.lua

@@ -196,6 +196,10 @@ local config = {
                 },
             },
         },
+        ['sd'] = {
+            cmd = "sd",
+            options = { },
+        },
     },
     default = {
         find = {

lua/spectre/replace/sd.lua

@@ -0,0 +1,52 @@
+local Path = require('plenary.path')
+local log = require('spectre._log')
+
+local sd = {}
+
+sd.init = function(_, config)
+    return config
+end
+
+sd.replace = function(self, value)
+    local cwd = value.cwd or vim.loop.cwd()
+    if not value.filename:match('^%/') then
+        value.filename = Path:new(cwd):joinpath(value.filename):absolute()
+    end
+
+    -- Read the original file
+    local lines = {}
+    local file = io.open(value.filename, "r")
+    for line in file:lines() do
+        table.insert(lines, line)
+    end
+    file:close()
+
+    if value.lnum <= #lines then
+        -- Use `io.popen` to get the transformed line using `sd`
+        local command = string.format("echo '%s' | sd '%s' '%s'", lines[value.lnum], value.search_text, value.replace_text)
+        local handle = io.popen(command, 'r')
+        if handle then
+            local transformedLine = handle:read("*a")
+            handle:close()
+            -- Replace the line in memory
+            lines[value.lnum] = transformedLine:gsub("\n$", "") -- Remove trailing newline added by `echo`
+        else
+            self:on_error(false, value)
+            return
+        end
+    else
+        log.debug("Line number out of bounds.")
+        return
+    end
+
+    -- Write the modified lines back to the file
+    file = io.open(value.filename, "w")
+    for _, line in ipairs(lines) do
+        file:write(line, "\n")
+    end
+    file:close()
+
+    self:on_done(true, value)
+end
+
+return sd