Replace UPPER with lower?

vr8ce · 06-04-2018, 04:18 PM

Does Calibre not have a replacement expression to replace a match with the lowercase version of the match? I've tried the usual regex means of doing so (\L&, e.g.), and nothing seems to work.

I really don't want to use regex functions (and have to write a function) to do something this trivial, so I assume I'm missing something. I've read the pertinent section of the user's guide, and don't see anything mentioned there, either. (I searched for "lower" everywhere in the regex page.)

vr8ce · 06-04-2018, 04:41 PM

I'm still curious about affecting case in replacement expressions (seems an odd omission in this day and age), but I see that function replacements has a built-in to do what I want. So, never mind, sorry for the noise.

GregTheGrate · 07-06-2018, 01:42 AM

I have a similar problem. I have a book that has roman numerals for chapter numbers. Some of the characters in the chapter number have been scanned as lower case and I would like to convert them to upper. I use Regex search as ([xXvViIlL]+) which finds the chapter numbers. I cannot find the correct replacement string to convert the resulting \1 to upper case. Any help would be appreciated

kovidgoyal · 07-06-2018, 02:30 AM

https://manual.calibre-ebook.com/function_mode.html

GregTheGrate · 07-06-2018, 09:43 PM

Many thanks

06-04-2018, 04:18 PM	#1
vr8ce Enthusiast Posts: 31 Karma: 48958 Join Date: May 2017 Device: iPad Pro 9.7"	Replace UPPER with lower? Does Calibre not have a replacement expression to replace a match with the lowercase version of the match? I've tried the usual regex means of doing so (\L&, e.g.), and nothing seems to work. I really don't want to use regex functions (and have to write a function) to do something this trivial, so I assume I'm missing something. I've read the pertinent section of the user's guide, and don't see anything mentioned there, either. (I searched for "lower" everywhere in the regex page.)

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06-04-2018, 04:41 PM	#2
vr8ce Enthusiast Posts: 31 Karma: 48958 Join Date: May 2017 Device: iPad Pro 9.7"	I'm still curious about affecting case in replacement expressions (seems an odd omission in this day and age), but I see that function replacements has a built-in to do what I want. So, never mind, sorry for the noise.

07-06-2018, 01:42 AM	#3
GregTheGrate Connoisseur Posts: 56 Karma: 10 Join Date: Jun 2012 Device: Kindle, iPad	I have a similar problem. I have a book that has roman numerals for chapter numbers. Some of the characters in the chapter number have been scanned as lower case and I would like to convert them to upper. I use Regex search as ([xXvViIlL]+) which finds the chapter numbers. I cannot find the correct replacement string to convert the resulting \1 to upper case. Any help would be appreciated

07-06-2018, 02:30 AM	#4
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	https://manual.calibre-ebook.com/function_mode.html

07-06-2018, 09:43 PM	#5
GregTheGrate Connoisseur Posts: 56 Karma: 10 Join Date: Jun 2012 Device: Kindle, iPad	Many thanks

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