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Tag: expression

Pit in the regular expression in Lua

When I use OpenResty to write Lua code, I need to use Lua regular expressions, where the pattern is like this,

–Water heater setting time
local s = ’12:33′
local pattern = “(20|21|22|23|[01

October 5, 2021By Simo Lua expression, lua, Medium, pit, regularLeave a Comment

C # – Pass the LINQ expression as a string?

The following code works fine

using (var ctx = new MyEntities())
{ var devices = ctx.Devices
.Where(x=> x.Device == “TEST”)
.ToList();
return devices;
} What I want to do is to pass in t

October 4, 2021By Simo C# as a string, C #, Delivery, expression, linq, willLeave a Comment

Julia: Using distributed arrays in expressions

I am trying to generate and evaluate expressions in different processes. The expression contains the local part of the distributed array, which seems to cause problems. For example,

addprocs(

October 3, 2021By Simo System Architecture array, distributed, expression, julia, Medium, useLeave a Comment

Protobuf3: String verification using regular expressions

I have been using Protobuf3 to define PB messages:

syntax = “proto3”;
package vioozer_protobuf ;
message Update
{
string sensor_id = 1;
…
} In my system, The sensor has a unique id format

October 1, 2021By Simo Micro Services expression, Protobuf, Protobuf3, regular, string, use, verificationLeave a Comment

ASP.NET – Deploy Expression Encoder SDK without installation

I am trying to prove a concept when using the Microsoft Expression Encoder 3 SDK. I am trying to deploy the SDK to my hosted web server to learn more about whether it is feasible and what needs to

September 29, 2021By Simo Asp ASP, ASP.NET, deployment, Encoder, expression, Investment, Moving, SDK, UneasyLeave a Comment

iPhone – Different Objective-C type conditions expressed the lack of actors?

I received this error:

The conditional expression of different Objective-C types’struct NSNull *’and’struct NSNMutableArray *’lack a coercion

On this line of code:

((tempArray!= n

September 23, 2021By Simo iPhone actor, condition, Different, expression, iPhone, lack, Objective, typeLeave a Comment

SQLITE – PREPARED statement and in expression

I have a database where users can search for records containing a list of one or more items. I am using IN for searching, but I cannot use IN to process prepared statements. This This is what I tri

September 22, 2021By Simo Sqlite expression, PREPARED, SQLITE, statementLeave a Comment

String objects and regular expressions

一·String object method

Concept: multiple characters Read-only character array………String is essentially an array

and an array

1. The original array can be modified at will, bu

August 22, 2021By Simo Regexp expression, object, regular, stringLeave a Comment

.NET – How to construct the performance of the LINQ expression?

Is there a difference in performance based on the position of the where clause in the linq expression?

Look at the following code:

dbContext.AnEntity.Include(“AnotherEntity”).Where(e =>

August 22, 2021By Simo Performance expression, How to construct, linq, performance, why notLeave a Comment

Grok resolution regular expression

I use the following regular expression:

INT (?:[+-]?(?:[0- 9]+))
VALUE ([0-9]+)
SPACE \s*
DATA .*?
USERNAME [a-zA-Z0-9._- ]+
YEAR (?>\d\d){1,2}
MONTHNUM (?:0?[1-9]|1[0-2])
MONTHDAY (? :(?:0[1

August 22, 2021By Simo Regexp expression, Grok, regular, ResolutionLeave a Comment

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