---
name: "Sisimai::MIME"
section: "3pm"
platform: "linux"
package: "libsisimai-perl"
version: "4.25.15-1"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/Sisimai::MIME"
---

# Sisimai::MIME(3pm)

MIME Utilities

## NAME

Sisimai::MIME - MIME Utilities

## SYNOPSIS

```
    use Sisimai::MIME;
    my $e = '=?utf-8?B?55m954yr44Gr44KD44KT44GT?=';
    my $v = Sisimai::MIME->is_mimeencoded(\$e);
    print $v;   # 1
    my $x = Sisimai::MIME->mimedecode([$e]);
    print $x;
```

## DESCRIPTION

Sisimai::MIME is MIME Utilities for `"Sisimai"`.

## CLASS METHODS

### "is\_mimeencoded(Scalar Reference)"

`"is_mimeencoded()"` returns that the argument is MIME-Encoded string or not.

```
    my $e = '=?utf-8?B?55m954yr44Gr44KD44KT44GT?=';
    my $v = Sisimai::MIME->is_mimeencoded(\$e);  # 1
```

### "mimedecode(Array-Ref)"

`"mimedecode()"` is a decoder method for getting the original string from MIME Encoded string in email headers.

```
    my $r = '=?utf-8?B?55m954yr44Gr44KD44KT44GT?=';
    my $v = Sisimai::MIME->mimedecode([$r]);
```

### "base64d(\\String)"

`"base64d"` is a decoder method for getting the original string from MIME Base564 encoded string.

```
    my $r = '44Gr44KD44O844KT';
    my $v = Sisimai::MIME->base64d(\$r);
```

### "qprintd(\\String)"

`"qprintd"` is a decoder method for getting the original string from MIME Quoted- printable encoded string.

```
    my $r = '=4e=65=6b=6f';
    my $v = Sisimai::MIME->qprintd(\$r);
```

### "boundary(String)"

`"boundary()"` returns a boundary string from the value of Content-Type header.

```
    my $r = 'Content-Type: multipart/mixed; boundary=Apple-Mail-1-526612466';
    my $v = Sisimai::MIME->boundary($r);
    print $v;   # Apple-Mail-1-526612466
    print Sisimai::MIME->boundary($r, 0); # --Apple-Mail-1-526612466
    print Sisimai::MIME->boundary($r, 1); # --Apple-Mail-1-526612466--
```

### "breaksup(\\String, String)"

`"breaksup"` is a multipart/\* message decoder: Decode quoted-printable, base64, and other encoded message part, leave only text/plain, message/\*, text/html (only in multipart/alternative), returns string as a reference. This method is called from **makeflat()** and **breaksup()** itself.

### "makeflat(String, \\String)"

`"makeflat"` makes flat multipart/\* message: it leaves only text/html, message/\*, and text/html (Content-Type of upper part is not multipart/alternative) part. In other words, this method remove parts which is not needed to parse bounce message such as image/\*, text/html inside of multipart/alternative.

```
    my $r = 'multipart/report; ...';    # Content-Type: MIME type, boundary
    my $b = '...';                      # Multipart message body
    my $v = Sisimai::MIME->makeflat($r, \$b);   # Returns scalar reference
    print $$v;                  # Flatten message body
```

## AUTHOR

azumakuniyuki

## COPYRIGHT

Copyright (C) 2014-2016,2018-2020 azumakuniyuki, All rights reserved.

## LICENSE

This software is distributed under The BSD 2-Clause License.