Questions tagged [expansion]
428 questions
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How can I create an always-expanded treeview?
Well, I thought I had this one solved. I simply changed the TreeViewItem's template to ignore whether a particular node was expanded or not. Looks great! But that's just it... it looks great! Keyboard navigation still responds as if the node was…
Mark A. Donohoe
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ZSH directory expansion ('..' into '../')
I've recently started to learn and use ZSH.
The problem I'm facing is that ZSH won't auto-expand '..' in commands (like 'cd', 'cp' and so on) into '../'. Bash does this.
This wouldn't be such an big issue if I were using keyboard with US-layout...…
amjr
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In-Place Word/Symbol Dabbrev Expand
Here's my extension to dabbrev-expand to support sub-string expansion.It works as expected, as far as I know. However I would find it even more useful if it supported in-symbol expansion similar to the behaviour of mdabbrev, which, by the way, is…
Nordlöw
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Query expansion in PostgreSQL
I've just read in PostgreSQL manual that it provide full-text search functions including parsing, indexing and searching on documents text.
My question is: it is possible to obtain a query expansion mechanism using a thesauri (or a dictionary)? I do…
Antonio F.
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Horizontal Expansion Widgets
I'm trying to make it so that two widgets are placed in a row that divide it in half. When you click on one of them, it moved apart, and the second disappeared. But so far I get overflow when closing.
import 'package:flutter/material.dart';
void…
kannt_im
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2 answers
Order of Command substitution and Arithmetic expansion in bash
The book “Learning the bash Shell” 3rd ed. by Cameron Newham and Bill Rosenblatt has at page 181 a picture describing the command-line processing of bash shell. That picture shows that Command substitution is performed before Arithmetic substitution…
diciotto
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Macro expansion and concatenation in cpp
#include
using namespace std;
#define PRINT_INFO() printf("%s",__FUNCTION__)
#define PRINT(str,...) printf("%s %s", PRINT_INFO(), str, ##__VA_ARGS__)
int main() {
PRINT_INFO(); // expected output = main
PRINT("Hello %s",…
Sazzad Hissain Khan
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Bash brace expansion - operand behavior
When using brace expansion with certain commands, the actual behavior differed from what I expected- a member within the brace was evaluated as an argument in the other brace member's expansion.
For instance,
$ mkdir -p…
Jay
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jq variable substituion works in shell but not in script
The following command works in the shell just fine, but when executed via an script it doesn't. What am I missing.
jsonSelectWords='select(.words!=6) | select(.words!=1173) | select(.words!=1) | select(.words!=8) | select(.words!=9) |…
Stefan Kraxberger
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Remove some arguments from argument string in zsh
I'm trying to remove part of an arguments string using zsh parameter expansion (no external tools like sed please). Here's what for:
The RUBYOPT environment variable contains arguments which are applied whenever the ruby interpreter is used just as…
svoop
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Variable expansion in expect script
Hope someone can help with this variable expansion inside expect script.
I assign values to variables in a loop like Ex:
for {set i 1} {$i<=10} {incr i 1} {
set IO$i [expr {$i + 1}]
}
I can get the variable values one by one by ex:
send_user "IO1…
nia
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2 answers
Generate random grammar expansions in TatSu (Python)
I'm writing an interpreter for a grammar parser generated with TatSu. I'm looking for a convenient way to generate use cases for my grammar, so I can write unit tests for my interpreter. Currently, I'm generating my test cases by hand.
I wonder if…
apio
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Flutter Conversion - UICollectionViewDiffableDataSource
Im trying to convert my existing iOS Application into Flutter.
In iOS I'm using UICollectionViewDiffableDataSource to view a structure like that:
struct ClassItem: Hashable{
let year: String
let students: [StudentItem]
}
let BiologyClass = [
…
Stanely2206
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3 answers
RenderBox was not laid out : The relevant error-causing widget was ExpansionTile
I created an ExpansionTile widget and on expanding it display a search textfield and list of book using ListView.Builder, but it sending me this error
RenderBox was not laid out: RenderRepaintBoundary#6b9d7 NEEDS-LAYOUT…
TimeToCode
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Generalized associated Legendre Polynomials
Is there a simple way to calculate the generalized associated Legendre polynomials in Python (article)?
I know that you can get the associated Legendre Polynomials using SciPy or pyshtools (article), but not the generalized ones (having two raised…
refle
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