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Old 04-11-2018, 12:27 PM   #1
Shagbark
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How to make ebook-convert use multi-line mode regexp?

I want to use ^ and $ in regular expressions in ebook-convert, but it apparently doesn't operate in multi-line mode.

$ cat > sample.txt
abc def ghi
<ctrl-d>

$ ebook-convert.exe sample.txt sample2.txt --sr1-search "abc" --sr1-replace 'zzz'
Conversion options changed from defaults:
sr1_replace: u'zzz'
sr1_search: u'abc'
1% Converting input to HTML...
InputFormatPlugin: TXT Input running
on Z:\data\text\sci\physics\thermodynamics\sample.txt
Language not specified
Creator not specified
Building file list...
Normalizing filename cases
Rewriting HTML links
flow is too short, not running heuristics
Forcing index.html into XHTML namespace
34% Running transforms on e-book...
Merging user specified metadata...
Detecting structure...
Auto generated TOC with 0 entries.
Flattening CSS and remapping font sizes...
Source base font size is 12.00000pt
Removing fake margins...
Cleaning up manifest...
Trimming unused files from manifest...
Creating TXT Output...
67% Running TXT Output plugin
Converting XHTML to TXT...
TXT output written to Z:\scratch\sample2.txt
Output saved to Z:\scratch\sample2.txt

$ cat sample2.txt
zzz def ghi

$ ebook-convert.exe sample.txt sample2.txt --sr1-search "^abc" --sr1-replace 'zzz'
Conversion options changed from defaults:
sr1_replace: u'zzz'
sr1_search: u'^abc'
1% Converting input to HTML...
InputFormatPlugin: TXT Input running
on Z:\data\text\sci\physics\thermodynamics\sample.txt
Language not specified
Creator not specified
Building file list...
Normalizing filename cases
Rewriting HTML links
flow is too short, not running heuristics
Forcing index.html into XHTML namespace
34% Running transforms on e-book...
Merging user specified metadata...
Detecting structure...
Auto generated TOC with 0 entries.
Flattening CSS and remapping font sizes...
Source base font size is 12.00000pt
Removing fake margins...
Cleaning up manifest...
Trimming unused files from manifest...
Creating TXT Output...
67% Running TXT Output plugin
Converting XHTML to TXT...
TXT output written to Z:\scratch\sample2.txt
Output saved to Z:\scratch\sample2.txt

$ cat sample2.txt
abc def ghi

Same result if I use --sr1-search "^abc" instead of --sr1-search '^abc'.
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Old 04-11-2018, 12:37 PM   #2
kovidgoyal
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Prefix with (?m)
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Old 04-11-2018, 03:29 PM   #3
Shagbark
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Where does the ?m go?

$ ebook-convert.exe sample.txt sample2.txt --sr1-search '?m^abc' --sr1-replace 'zzz'
...
$ cat sample2.txt
=~ abc def

(It actually puts the =~ into the output, which makes me suspect the program is somehow dropping a bit of its own pattern-matching source code into the output. This is win64 version 3.21 on Windows 7; I just updated it this morning.)

I figured out how to do what I need to do without multi-line mode, so I don't need an answer right now. But this =~ might be a bug.

Last edited by Shagbark; 04-11-2018 at 03:33 PM.
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Old 04-11-2018, 10:29 PM   #4
kovidgoyal
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You are missing the parentheses and this is all documented in the manual https://manual.calibre-ebook.com/reg...reference.html
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