Differences between books - Markings (2)

chaot · 06-02-2016, 01:31 PM

Prelude

Maybe I lack the necessary working routine. Anyway, the new example seems me the more likely to be not smart, but colorful - and confusing!

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Searching done Replaced 329 occurences of [0-9]+\s+

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Differences between books I consider (left side) only the characters which get eliminate, so 7 and  should be highlighted in red.
Consequently, the yellow highlightings (right side) would be superfluous.

EDIT Without (much) words!

Differences between books (red/green)

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Differences between books (only red) That looks smart. For me!
However, the display is insofar incorrect: It should not get eliminated 9 but 9*blanc spaces* - even the result is the same (correct).

Interna: Bedürftig (AHdAb)

kovidgoyal · 06-02-2016, 11:06 PM

Sigh. I suggest you go read up on how diffing algorithms work. Google patience diff algorithm. No diffing algorithm can ever match what you think has "changed" in all situations. There are literally infinite ways to go from document A to document B. Any diffing algorithm simply has to guess which of those ways was actually used. Every diffing algorithm will get it wrong from time to time.

eschwartz · 06-02-2016, 11:56 PM

IMHO that is actually the correct way anyway.

The code tags are part of the changes, are they not?

chaot · 06-03-2016, 05:47 AM

Quote:

Originally Posted by kovidgoyal

Sigh. I suggest you go read up on how diffing algorithms work. ...

I leave it to you to know about.

And even if it looks like criticism and such is, I would like to express my (great) admiration for your work.

Quote:

Originally Posted by eschwartz

IMHO that is actually the correct way anyway.

There are 3 different forms of presentation of the workup of a regex in the same book. Since one can hardly speak of the correct way anyway.

The benevolent readiness with alleged (or supposed) conspicuousnesses, by me gladly referred to as inconsistencies, I take for granted for all those involved.

I will get in touch with you again about that topic (presentation of changes in Differences of books).

"Good things can become even better."

06-02-2016, 01:31 PM	#1
chaot Head of lunatic asylum Posts: 349 Karma: 77620 Join Date: Jun 2012 Location: UTC +1 Device: Tolino Vision 3HD	Differences between books - Markings (2) Prelude Maybe I lack the necessary working routine. Anyway, the new example seems me the more likely to be not smart, but colorful - and confusing! Searching done Replaced 329 occurences of [0-9]+</p>\s+<p class="calibre2"> Differences between books I consider (left side) only the characters which get eliminate, so 7</p> and <p class="calibre2"> should be highlighted in red. Consequently, the yellow highlightings (right side) would be superfluous. EDIT Without (much) words! Differences between books (red/green) Differences between books (only red) That looks smart. For me! However, the display is insofar incorrect: It should not get eliminated <p class="calibre2">9</p> but 9</p>blanc spaces<p class="calibre2"> - even the result is the same (correct). Interna: Bedürftig (AHdAb) Last edited by chaot; 06-03-2016 at 06:29 AM. Reason: add interna, add EDIT, minor correction

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06-02-2016, 11:06 PM	#2
kovidgoyal creator of calibre Posts: 45,341 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Sigh. I suggest you go read up on how diffing algorithms work. Google patience diff algorithm. No diffing algorithm can ever match what you think has "changed" in all situations. There are literally infinite ways to go from document A to document B. Any diffing algorithm simply has to guess which of those ways was actually used. Every diffing algorithm will get it wrong from time to time.

06-02-2016, 11:56 PM	#3
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	IMHO that is actually the correct way anyway. The code tags are part of the changes, are they not?

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