Regex Rename Issue - Page 2

DiapDealer · 10-06-2024, 01:05 PM

I've not tested it, but I also think that you wouldn't be able to properly add any existing image files named like that to Sigil on any platform--including Linux. Sigil wouldn't know how to manifest it properly. I'm guessing it would end up manifested as text/plain and show up in Misc rather than Images.

You'd have to rename *.jpg files to your *.09_jpg preference only after they've been successfully added and manifested as image/jpeg in the opf.

KarlG · 10-06-2024, 04:48 PM

Quote:

Originally Posted by DiapDealer

I've not tested it, but I also think that you wouldn't be able to properly add any existing image files named like that to Sigil on any platform--including Linux. Sigil wouldn't know how to manifest it properly. I'm guessing it would end up manifested as text/plain and show up in Misc rather than Images.

You'd have to rename *.jpg files to your *.09_jpg preference only after they've been successfully added and manifested as image/jpeg in the opf.

I didn't actually add the files, I wanted to rename them temporarily because some of the filenames had 2 full-stops '.' in them and I was having trouble just replacing the first one, so I changed the second '.' to _ and that was when I noticed the issue.

I liked your suggestion earlier about using a slightly different regex though, so I'll use that for the future.

DiapDealer · 10-06-2024, 07:41 PM

I figured they were probably part of an existing epub. I was just pointing out that when adding external files to a Sigil epub, the file extension is the only (I think) thing that tells Sigil what the media type should be in the manifest.

KarlG · 10-07-2024, 01:20 AM

Yes sure. Sometimes I'm spoiled as a linux user

KevinH · 10-07-2024, 03:12 AM

Linux can and does support file extensions. The only way extensions can really be dropped is to use a program internally to check the initial bytes for some "magic" byte patterns but this is generally not portable. Hiding file extensions is a good way to be tricked into running something you should not. Combining file extensions that match with "magic byte sequences" is the best for portability and security.

KarlG · 10-07-2024, 07:05 AM

Quote:

Originally Posted by KevinH

Linux can and does support file extensions. The only way extensions can really be dropped is to use a program internally to check the initial bytes for some "magic" byte patterns but this is generally not portable. Hiding file extensions is a good way to be tricked into running something you should not. Combining file extensions that match with "magic byte sequences" is the best for portability and security.

Indeed.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
pdf regex question - regex that wraps to a new line	flyash	Conversion	1	09-05-2021 10:00 AM
Class Rename Issue	Paulie_D	Editor	2	03-29-2021 01:09 PM
Predefined regex for Regex-function	sherman	Editor	3	01-19-2020 06:32 AM
regex - issue with spaces?	cybmole	Editor	43	12-31-2013 01:49 PM
regex Issue when Importing	river	Calibre	3	06-16-2009 12:03 PM

10-06-2024, 01:05 PM	#16
DiapDealer Grand Sorcerer Posts: 28,039 Karma: 199464182 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	I've not tested it, but I also think that you wouldn't be able to properly add any existing image files named like that to Sigil on any platform--including Linux. Sigil wouldn't know how to manifest it properly. I'm guessing it would end up manifested as text/plain and show up in Misc rather than Images. You'd have to rename .jpg files to your .09_jpg preference only after they've been successfully added and manifested as image/jpeg in the opf.

10-06-2024, 07:41 PM	#18
DiapDealer Grand Sorcerer Posts: 28,039 Karma: 199464182 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	I figured they were probably part of an existing epub. I was just pointing out that when adding external files to a Sigil epub, the file extension is the only (I think) thing that tells Sigil what the media type should be in the manifest.

10-07-2024, 01:20 AM	#19
KarlG Connoisseur Posts: 62 Karma: 10 Join Date: Mar 2024 Device: none	Yes sure. Sometimes I'm spoiled as a linux user

10-07-2024, 03:12 AM	#20
KevinH Sigil Developer Posts: 8,156 Karma: 5450818 Join Date: Nov 2009 Device: many	Linux can and does support file extensions. The only way extensions can really be dropped is to use a program internally to check the initial bytes for some "magic" byte patterns but this is generally not portable. Hiding file extensions is a good way to be tricked into running something you should not. Combining file extensions that match with "magic byte sequences" is the best for portability and security.