arpeggio | interatomic interactions in molecular structures | Genomics library
kandi X-RAY | arpeggio Summary
kandi X-RAY | arpeggio Summary
Calculation of interatomic interactions in molecular structures
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Top functions reviewed by kandi - BETA
- Parses a selection list
- Make a PyMOL string from an entity
- Compute the similarity between two Sift objects
- Return a human - readable string representation of a sift match
- Calculates the angle of a group
- Compute the angle between two groups
- Determine if a halogen atom is a weak hydrogen bond
- Returns the angle between two points
- Returns the first neighbour of an atom
- Checks if the given donor atom is weak
- Check if a donor is a hydrogen bond
- Update the sift sift s sift
- Checks if the donor atom is a Bond atom
- Update the actual fsift
- Updates the atom sift
- Turn an integer into an integer
- Add a vertex without duplicates
- Return the maximum memory usage
arpeggio Key Features
arpeggio Examples and Code Snippets
Community Discussions
Trending Discussions on arpeggio
QUESTION
TL;DR: The issue will be fixed in version 3.0 of TextX. The workaround is to use regex for matching escaped (\
) characters, such as \n
.
FULL QUESTION: Using TextX, I am parsing a homegrown mark-up language, where paragraph and line breaks are significant. I think I am missing a fundamental understanding when trying to match new lines: Why are "\n"
and "\n\n"
not working, while their regex counterparts /\n/
and /\n\n/
do?
NOTE: whitespace is redefined at parser level to exclude \n
using ws=" \t"
.
ANSWER
Answered 2022-Mar-01 at 17:16It is the problem addressed in the current development version. Please see this textX issue.
The fix will be a part of the upcoming textX 3.0 release.
QUESTION
few days i am stuck; i would like to parse a big document with many page amongts things it has tables like this one :
...ANSWER
Answered 2021-Mar-27 at 02:57i found the solution thanks to the hints from @JeffC by asking about the number of spaces. Here is the grammar:
QUESTION
Here's a simple code to understand:
...ANSWER
Answered 2020-Oct-11 at 09:34Arpeggio is based on PEG formalism and it never backtracks a successful ordered choice match.
A quote from the Wikipedia PEG article:
The fundamental difference between context-free grammars and parsing expression grammars is that the PEG's choice operator is ordered. If the first alternative succeeds, the second alternative is ignored.
So you have to be careful when ordering your RHS rule references in an ordered choice. The rule of the thumb would be to put more specific matches at the front. In your case line line
is more specific and should be tried first.
QUESTION
I am trying to change this:
...ANSWER
Answered 2020-Aug-19 at 14:50first grab the elements dataset and check if 380, then if it is just grap the element by classname and style width to 450px.
I suspect though that you don't really want to set data-width and data-height, rather, set width and height and then access those directly.
QUESTION
I have a PEG grammar for a toy DSL using the Python Arpeggio package:
...ANSWER
Answered 2020-Jun-23 at 11:11In PEG the order of expressions is OrderedChoice
is important. When the parser try item1+
it is enough to match at least one of item1
to succeed and the whole ordered choice is then considered successful.
In general, always put more specific matches at the beginning and more general towards the end of ordered choice.
Update: there is a nice explanation in Ambiguity detection and influence of rule order on language that is matched section on Wikipedia.
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