Indentation is messed up when using --pager flag

[HamzaBow]

Describe the bug
Indentation is messed up when using --pager flag

Setup

• OS: WSL2 Ubuntu 24.04 - Windows 11
• Shell: fish
• Terminal Emulator: Windows Terminal
• Terminal Multiplexer: tmux
• Locale: UTF-8

To Reproduce
Steps to reproduce the behavior:
create a file that has lines that contain varying levels of indentation, e.g. a file that contains golang code. running glow ./filename.go --pager produces different indentation levels for lines that are supposed to be at the same indentation level.

Source Code
below is the content of the file I used:

package main

import (
	"fmt"
	"strconv"
)

func main() {
	// Example with an integer
	num := 42
	str := strconv.Itoa(num) // Convert integer to string
	fmt.Println("The number as a string is: \n" + str + "\n")

	// Example with a float
	floatNum := 3.14
	strFloat := strconv.FormatFloat(floatNum, 'f', -1, 64) // Convert float to string
	fmt.Println("The float as a string is: \n" + strFloat + "\n")
}

Expected behavior
Using the --pager flag should not produced inconsistent indentations, and it should just add a pager to the same content that one would have got if they didn't use the -pager flag.

Screenshots
Without --pager flag:

With --pager flag: