Questions tagged [expansion]
428 questions
3
votes
4 answers
Bash: trim a parameter from both ends
Greetings!
This are well know Bash parameter expansion patterns:
${parameter#word}, ${parameter##word}
and
${parameter%word}, ${parameter%%word}
I need to chop one part from the beginning and anoter part from the trailing of the parameter. Could you…
Andrey Kazak
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3
votes
2 answers
Brace expansion from a variable in Bash
I would like to expand a variable in Bash. Here's my example:
variable="{1,2,3}"
echo $variable
Expected output:
1 2 3
Actual output:
{1,2,3}
user2472340
- 31
- 2
3
votes
1 answer
C/C++ macro expansion
I have the following code:
#define UNIT_BASIC_UNIT_DEF2 (name) UNIT_BASIC_ ## name
#define UNIT_UNIT_TYPE_DEF2 (basic_type, name) UNIT_ ## basic_type ## _ ## name
#define UNIT_BASIC_UNIT_CLASS_NAME2(name) CUnit ## name
#define…
G. Ko
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3
votes
2 answers
Is there a way to control macro expansion order
I am hoping that someone may have an idea on how to control/specify the order of macro expansion. Here is the context:
// 32 bit increments, processor has registers for set, clear and invert
#define CLR_OFF 1
#define SET_OFF 2
#define INV_OFF…
daicoden
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3
votes
2 answers
In Bash, is it possible to write an 'identity' function (relative to arguments passing/returning)
Such 'identity' function should satisfy the following 2 properties :
identity $(identity a\ b c\ d)
# (Expected output:)
# a b
# c d
And, given the following 'argv_count' function:
argv_count () { echo "argv_count('$@'):$#"; }
argv_count $(identity…
Lucas Cimon
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3
votes
1 answer
batch reinitialize global variable inside loop and use it outside loop
firts of all im beginner. i have multiple file in directory which its name contain date, i need to find which file is the latest one(just need the date). this is what i have so far
set currentYear=2013
set logDate=0
set tempLogDate=0
set…
paiseha
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3
votes
1 answer
zsh: parameter expansion inserting quotes
I'm having trouble during parameter expansion in zsh: It's enclosing my variable in quotes.
Here is my script. (Apologies for the noise, the only real important line is the last one with the find call, but I wanted to make sure I'm not hiding…
t-mart
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3
votes
1 answer
m4 expand macro inside words
I am very new to m4 but cannot find this simple thing:
Is it possible to expand a macro in the middle of a word? (I would use it for a counter
that would be used in a C symbol name in low-level code)
I mean like:
define(`foo',`bar')
Happy…
dennis90
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3
votes
1 answer
WordNet, Query Expansion, Step by Step
I want to make a project about query expansion using WordNet,but it's hard to find step by step method to do it.
Based on this article, I should take the following steps (assuming a sentence as input to the program):
Tokenization
Tagging part of…
Ahimsa Afrizal
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3
votes
2 answers
I don't know how lisp macro construct its expansion? what's the exact step?
I tried to write a macro and execute it as follow. but it failed to execute.
(defmacro times_two (var) (* 2 var))
(times_two '(+ 1 2))
In my imagination, I think the expansion would be (* 2 (+ 1 2)). and after execution, the result would be 6. But…
user1629065
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- 4
3
votes
1 answer
Android Expansion Files Library Setup
I have been trying to implement Expansion files unsuccessfully. I have included the libraries for Licensing, Expansion, and zip files as external jar files to the sample project and everything seems to be fine and all errors go away. When I run the…
Dan D.
- 31
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3
votes
3 answers
Android expansion apk problems
We recently started making use of the new Google Expansion APK mechanism. Overall it works well, but it seems somewhat flakey for us. Some questions:
Some users get the expansion app downloaded along with the app while others don't and our app…
btschumy
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2
votes
1 answer
Will the expansion files be deleted when an user removes your application from there phone / tablet?
Google just gave us a new option to add expansion files to our android apps. Very great idea!
But something is bugging me for a long time in Android and I'm wondering if the Google developers have solved that issue with this solution.
When I'm…
Peter Fortuin
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2
votes
4 answers
String expansion in bash with embedded quotes
Problem:
The following shell script code does not produce the expected result:
# MYSQL, MyUSER MyHost etc ... all defined above as normal
TARG_DB="zztest";
DB_CREATE="$($MYSQL -u $MyUSER -h $MyHOST -p$MyPASS -Bse 'create database…
dreftymac
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2
votes
2 answers
Scala Case Class Map Expansion
In groovy one can do:
class Foo {
Integer a,b
}
Map map = [a:1,b:2]
def foo = new Foo(map) // map expanded, object created
I understand that Scala is not in any sense of the word, Groovy, but am wondering if map expansion in this context is…
virtualeyes
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