Class MethodCallExtractor
Used to help grab method and constructor info from expressions (which is easier than writing long strings of reflection code).
For example:
MethodCallExtractor.ExtractCalledMethod(() => Console.WriteLine("foo"))
Will return the MethodInfo for the WriteLine
method of the Console
class.
Inherited Members
Namespace:Rezolver
Assembly:Rezolver.dll
Syntax
public sealed class MethodCallExtractor : ExpressionVisitor
Methods
| Improve this Doc View SourceExtractCalledMethod(Expression<Action>)
Extracts the MethodInfo of the first method call found in the expression.
Declaration
public static MethodInfo ExtractCalledMethod(Expression<Action> expr)
Parameters
| Type | Name | Description |
|---|---|---|
| Expression<System.Action> | expr | The expression to be read |
Returns
| Type | Description |
|---|---|
| MethodInfo | A MethodInfo representing the method - if the expression contains a method call; otherwise |
ExtractCalledMethod<T>(Expression<Action<T>>)
Extracts the MethodInfo of the first method call found in the expression.
Declaration
public static MethodInfo ExtractCalledMethod<T>(Expression<Action<T>> expr)
Parameters
| Type | Name | Description |
|---|---|---|
| Expression<System.Action<T>> | expr | The expression to be read |
Returns
| Type | Description |
|---|---|
| MethodInfo | A MethodInfo representing the method - if the expression contains a method call; otherwise |
Type Parameters
| Name | Description |
|---|---|
| T | Allows the expression to declare a parameter to aid overload resolution, but doesn't actually have any material influence on the expression analysis. |
ExtractCalledMethod<TResult>(Expression<Func<TResult>>)
Extracts the MethodInfo of the first method call found in the expression.
Declaration
public static MethodInfo ExtractCalledMethod<TResult>(Expression<Func<TResult>> expr)
Parameters
| Type | Name | Description |
|---|---|---|
| Expression<Func<TResult>> | expr | The expression to be read |
Returns
| Type | Description |
|---|---|
| MethodInfo | A MethodInfo representing the method - if the expression contains a method call; otherwise |
Type Parameters
| Name | Description |
|---|---|
| TResult | Return type of the expression. Not actually used in any way, it's just here to allow overload resolution when an expression represents a non-void function call |
ExtractCalledMethod<TInstance, TResult>(Expression<Func<TInstance, TResult>>)
Extracts the MethodInfo of the first method call found in the expression.
Declaration
public static MethodInfo ExtractCalledMethod<TInstance, TResult>(Expression<Func<TInstance, TResult>> expr)
Parameters
| Type | Name | Description |
|---|---|---|
| Expression<Func<TInstance, TResult>> | expr | The expression to be read |
Returns
| Type | Description |
|---|---|
| MethodInfo | A MethodInfo representing the method - if the expression contains a method call; otherwise |
Type Parameters
| Name | Description |
|---|---|
| TInstance | Allows the expression to declare a parameter to aid overload resolution, but doesn't actually have any material influence on the expression analysis. |
| TResult | Return type of the expression. Not actually used in any way, it's just here to allow overload resolution when an expression represents a non-void function call |
ExtractConstructorCall(Expression<Action>)
Extracts the ConstructorInfo of the first 'new' statement found in the expression
Declaration
public static ConstructorInfo ExtractConstructorCall(Expression<Action> expr)
Parameters
| Type | Name | Description |
|---|---|---|
| Expression<System.Action> | expr | The expression to be analysed. |
Returns
| Type | Description |
|---|---|
| ConstructorInfo | A ConstructorInfo representing the constructor being called in the expression; otherwise |
ExtractConstructorCall<T>(Expression<Action<T>>)
Extracts the ConstructorInfo of the first 'new' statement found in the expression
Declaration
public static ConstructorInfo ExtractConstructorCall<T>(Expression<Action<T>> expr)
Parameters
| Type | Name | Description |
|---|---|---|
| Expression<System.Action<T>> | expr | The expression to be analysed. |
Returns
| Type | Description |
|---|---|
| ConstructorInfo | A ConstructorInfo representing the constructor being called in the expression; otherwise |
Type Parameters
| Name | Description |
|---|---|
| T | Allows the expression to declare a parameter to aid overload resolution, but doesn't actually have any material influence on the expression analysis. |
ExtractConstructorCall<TResult>(Expression<Func<TResult>>)
Extracts the ConstructorInfo of the first 'new' statement found in the expression
Declaration
public static ConstructorInfo ExtractConstructorCall<TResult>(Expression<Func<TResult>> expr)
Parameters
| Type | Name | Description |
|---|---|---|
| Expression<Func<TResult>> | expr | The expression to be analysed. |
Returns
| Type | Description |
|---|---|
| ConstructorInfo | A ConstructorInfo representing the constructor being called in the expression; otherwise |
Type Parameters
| Name | Description |
|---|---|
| TResult | Return type of the expression. Not actually used in any way, it's just here to allow overload resolution when an expression represents a non-void function call |
ExtractConstructorCall<TInstance, TResult>(Expression<Func<TInstance, TResult>>)
Extracts the ConstructorInfo of the first 'new' statement found in the expression
Declaration
public static ConstructorInfo ExtractConstructorCall<TInstance, TResult>(Expression<Func<TInstance, TResult>> expr)
Parameters
| Type | Name | Description |
|---|---|---|
| Expression<Func<TInstance, TResult>> | expr | The expression to be analysed. |
Returns
| Type | Description |
|---|---|
| ConstructorInfo | A ConstructorInfo representing the constructor being called in the expression; otherwise |
Type Parameters
| Name | Description |
|---|---|
| TInstance | Allows the expression to declare a parameter to aid overload resolution, but doesn't actually have any material influence on the expression analysis. |
| TResult | Return type of the expression. Not actually used in any way, it's just here to allow overload resolution when an expression represents a non-void function call |
VisitMethodCall(MethodCallExpression)
Visits the children of the MethodCallExpression.
Declaration
protected override Expression VisitMethodCall(MethodCallExpression node)
Parameters
| Type | Name | Description |
|---|---|---|
| MethodCallExpression | node | The expression to visit. |
Returns
| Type | Description |
|---|---|
| Expression |
Overrides
| Improve this Doc View SourceVisitNew(NewExpression)
Visits the children of the NewExpression.
Declaration
protected override Expression VisitNew(NewExpression node)
Parameters
| Type | Name | Description |
|---|---|---|
| NewExpression | node | The expression to visit. |
Returns
| Type | Description |
|---|---|
| Expression |


A task describes metadata, state, input/output files, resource requests, commands, and logs.
The task API has four actions: create, get, list, and cancel.
Funnel serves both HTTP/JSON and gRPC/Protobuf.
The Task API is developed via an open standard effort.
Given a task, Funnel will queue it, schedule it to a worker, and track its state and logs.
A worker will download input files, run a sequence of Docker containers, upload output files, and emits events and logs along the way.
We use Funnel on AWS, Google Cloud, OpenStack, and the good ol' university HPC cluster.
A wide variety of options make Funnel easily adaptable:
A task describes metadata, state, input/output files, resource requests, commands, and logs.
For a full description of the task fields,
see the task API docs and the the task schema.
$ funnel examples hello-world
{
"name": "Hello world",
"description": "Demonstrates the most basic echo task.",
"executors": [
{
"image": "alpine",
"command": ["echo", "hello world"],
}
]
}
localhost:8000 is the HTTP API and web dashboard.
localhost:9090 is the gRPC API.
$ funnel server run
server Server listening
httpPort 8000
rpcAddress :9090
The output is the task ID.
This example uses the development server, which will run the task locally via Docker.
$ funnel examples hello-world > hello-world.json
$ funnel task create hello-world.json
b8581farl6qjjnvdhqn0
The output is the task with state and logs.
By default, the CLI returns the "full" task view, which includes all logs plus stdout/err content.
$ funnel task get b8581farl6qjjnvdhqn0
{
"id": "b8581farl6qjjnvdhqn0",
"state": "COMPLETE",
"name": "Hello world",
"description": "Demonstrates the most basic echo task.",
"executors": [
{
"image": "alpine",
"command": [
"echo",
"hello world"
],
}
],
"logs": [
{
"logs": [
{
"startTime": "2017-11-13T21:35:57.548592769-08:00",
"endTime": "2017-11-13T21:36:01.871905687-08:00",
"stdout": "hello world\n"
}
],
"startTime": "2017-11-13T21:35:57.547408797-08:00",
"endTime": "2017-11-13T21:36:01.87496482-08:00"
}
],
"creationTime": "2017-11-13T21:35:57.543528992-08:00"
}
$ funnel task list --view MINIMAL
{
"tasks": [
{
"id": "b8581farl6qjjnvdhqn0",
"state": "COMPLETE"
},
...
]
}
The "run" command makes it easy to quickly create a task. By default, commands are wrapped in "sh -c" and run in the "alpine" container.
Use the "--print" flag to print the task instead of running it immediately.
$ funnel run 'md5sum $src' --in src=~/src.txt --print
{
"name": "sh -c 'md5sum $src'",
"inputs": [
{
"name": "src",
"url": "file:///Users/buchanae/src.txt",
"path": "/inputs/Users/buchanae/src.txt"
}
],
"executors": [
{
"image": "alpine",
"command": [
"sh",
"-c",
"md5sum $src"
],
"env": {
"src": "/inputs/Users/buchanae/src.txt"
}
}
],
}
Tasks can be monitored in a terminal dashboard.
$ funnel dashboard
There's also a web dashboard at http://localhost:8000
Usually you'll want to use a remote Funnel server. For that, there are CLI flags and envionrment variables.
$ funnel -S http://funnel.example.com task list
$ FUNNEL_SERVER="http://funnel.example.com" funnel task list
There's a lot more to learn about tasks and Funnel. More information can be found in the docs and the CLI help.
$ funnel help
Join the Gitter channel.
Head over to GitHub and dig in.
Let us know what you think.


--- layout: page ---
Our goal is to design an automated system that will identify, slice and sort common vegetables (eggplants, zucchinis and cucumbers).
See the Problem page for the problem formulation.
Thank you to everyone who came out on symposium day. We thoroughly enjoyed showcasing our project. Here are the videos that were shown:


| Methods |
public
|
having(
string|Closure|Expression $column,
string|null $operator = null,
mixed|null $value = null,
string $condition = 'and',
): BuildsHavings|QueryBuilder
Add a having clause.
|
#
|
public
|
nestHaving(Closure|self $column, string $condition = 'and'): BuildsHavings|QueryBuilder
Make a nested having clause.
Make a nested having clause.
Throws
|
#
|
public
|
orHaving(string|Closure $column, string|null $operator = null, mixed|null $value = null): BuildsHavings|QueryBuilder
Add a having clause with condition (OR) condition.
Add a having clause with condition (OR) condition.
Throws
|
#
|
public
|
rawHaving(string $sql, array $bindings = [], string $condition = 'and'): BuildsHavings|QueryBuilder
Create a having clause from raw sql.
Create a having clause from raw sql.
Throws
|
#
|
public
|
orRawHaving(string $sql, array $bindings = []): BuildsHavings|QueryBuilder
Create a having clause from raw sql with (OR) condition.
Create a having clause from raw sql with (OR) condition.
Throws
|
#
|
public
|
havingNull(string $column, string $condition = 'and', string $type = 'Null'): BuildsHavings|QueryBuilder
Create having clause having column is null.
Create having clause having column is null.
|
#
|
public
|
orHavingNull(string $column): BuildsHavings|QueryBuilder
Create having is null with (OR) condition.
Create having is null with (OR) condition.
|
#
|
public
|
havingNotNull(string $column, string $condition = 'and'): BuildsHavings|QueryBuilder
Create having clause having column is not null.
Create having clause having column is not null.
|
#
|
public
|
orHavingNotNull(string $column): BuildsHavings|QueryBuilder
Create having is not null with (OR) condition.
Create having is not null with (OR) condition.
|
#
|
public
|
havingBetween(
string $column,
array $values,
string $condition = 'and',
string $type = 'Between',
): BuildsHavings|QueryBuilder
Create having clause having column is between values.
Create having clause having column is between values.
Throws
|
#
|
public
|
orHavingBetween(string $column, array $values): BuildsHavings|QueryBuilder
Create between having clause with (OR) condition.
Create between having clause with (OR) condition.
Throws
|
#
|
public
|
havingNotBetween(string $column, array $values, string $condition = 'and'): BuildsHavings|QueryBuilder
Create having clause having column is not between values.
Create having clause having column is not between values.
Throws
|
#
|
public
|
orHavingNotBetween(string $column, array $values): BuildsHavings|QueryBuilder
Create not between having clause with (OR) condition.
Create not between having clause with (OR) condition.
Throws
|
#
|


| Show In Menu? | |||||||
| Steps ({{editWFForm.item.steps.length}}) | |||||||
| Type: {{step.type}} |
cmd:
name:
value:
name:
var:
source: from: to:
var:
if: pattern: yes_subflow: yes_inputVars:
no_inputVars:
name:
source:
target:
folder:
folder:
file:
var:
file:
col:
var:
col:
value:
var:
code:
name:
value:
name:
name:
content:
name:
content:
append:
name: file: |


| Item | {{cartItem.food.name}} | Total | Cost | {{cartItem.food.price}} PLN | {{getTotalCost()}} PLN | Quantity | {{getTotalQty()}} | Action | Delete Update |
|---|
Cart Item Updated!
Oops, some of the products don't have enough stock. Please update product quantity.
Oops, your cart is empty. See if you can find what you link in the bookshelf and add them to cart.


--- layout: post title: How to make Ubuntu Local Repository date: 2014-06-10 19:06:17.000000000 +02:00 type: post parent_id: '0' published: true password: '' status: publish tags: - Linux - Tips/Tricks meta: _edit_last: '49460244' publicize_facebook_url: https://facebook.com/10202785281768090 geo_public: '0' _wpas_done_3508581: '1' _publicize_done_external: a:1:{s:8:"facebook";a:1:{i:1081800551;b:1;}} _wpas_skip_3508581: '1' author: login: mpho112 email<EMAIL_ADDRESS>display_name: Mpho first_name: '' last_name: '' ---
1. Open terminal.
Install dpkg-dev ,apache2 and apt-mirror
$ sudo su
$ apt-get update && apt-get upgrade
$ apt-get install dpkg-dev apache2 apt-mirror
2. Create a directory where you will keep your packages. For this example, we'll use /usr/local/mydebs.
$ mkdir -p /usr/local/mydebs
3. Now copy your packages into the directory you've just created.
$ rsync -truv /var/cache/apt/archives/* /usr/local/mydebs
#tip: you can place that command on crontab to sync every week
4. The Script update-mydebs
It's a simple three liner:
$ mkdir -p ~/bin
$ . ~/.bashrc
$ nano update-mydebs
copy the below code.
#! /bin/bash
cd /usr/local/mydebs
dpkg-scanpackages . /dev/null | gzip -9c > Packages.gz
Next, make the script executable:
$ chmod u+x ~/bin/update-mydebs
How the script works:
dpkg-scanpackages looks at all the packages in mydebs, and the output is compressed and written to a file (Packages.gz) that apt-get update can read (see below for a reference that explains this in excruciating detail). /dev/null is an empty file; it is a substitute for an override file which holds some additional information about the packages, which in this case is not really needed. See deb-override(5) if you want to know about it.
5. Update sources.list
$ echo "deb file:/usr/local/mydebs ./" | tee -a /etc/apt/sources.list
6. Whenever you put a new deb in the mydebs directory, run
$ update-mydebs
$ apt-get update
Now your local packages can be manipulated with Synaptic, aptitude and the apt commands: apt-get, apt-cache, etc. When you attempt to apt-get install, any dependencies will be resolved for you, as long as they can be met.

7. Configuring apt-mirror
$ cp /etc/apt/mirror.list /etc/apt/mirror.list.orig
$ cp /etc/apt/sources.list /etc/apt/sources.list.orig
$ cp /etc/cron/apt-mirror /etc/cron/apt-mirror.orig
$ cp /var/spool/apt-mirror/var/postmirror.sh /var/spool/apt-mirror/var/postmirror.sh.orig
Now edit the files.
$ echo "deb file:/usr/local/mydebs ./" | tee -a /etc/apt/mirror.list
$ echo "clean deb file:/usr/local/mydebs ./" | tee -a /etc/apt/mirror.list
You can also remove or comment out the lines dealing with source code if you don't expect to need or use them. You can always add repositories later if you want. The time it takes to populate your mirror after adding something is less than the initial population of your mirror, so you can start with the minimum and add more later as the need arises.
8. Now you can run apt-mirror for the first time.
You might want to wait on this step since it will take a while for your mirror to build, overnight for example(depending on your internet speed).
$ apt-mirror
You'll see it working, but it will appear slow.
Once the mirror is populated, link the repository to the web server:
9. Linking repository to Webserver(apache2)
ln -s /var/spool/apt-mirror/mirror/archive.ubuntu.com/ubuntu /var/www/
ln -s /var/spool/apt-mirror/mirror/security.ubuntu.com/ubuntu /var/www/
ln -s /usr/local/mydebs /var/www/
Finally, make apt-mirror an automated task:(Not really necessary)
remove the comment from the last line.
$ nano /etc/cron.d/apt-mirror
10. Moving to the client side:
Edit the sources.list file that will be used to access the mirror.
$ sudo nano /etc/apt/sources.list
The example below assumes using the mirror from the computer that hosts it.
Using it from other computers on the network simply requires changing the IP address from 172.x.30.100 to whatever IP address is assigned to the mirror host(Server).
deb http://172.x.30.100/debs ./
deb http://172.x.30.100/debs /
deb http://172.x.30.100/ubuntu precise main restricted universe multiverse
deb http://172.x.30.100/ubuntu precise-updates main restricted universe multiverse
deb http://172.x.30.100/ubuntu precise-security main restricted universe multiverse
deb http://172.x.30.100/security precise main restricted universe multiverse
deb http://172.x.30.100/security precise-updates main restricted universe multiverse
deb http://172.x.30.100/security precise-security main restricted universe multiverse
11. Update the source.list, run
$ sudo su
$ apt-get update & apt-get upgrade


PEER_MSG |
Channel: 0 |
This packet is used to communicate directly.
Parameters
| Data type | Content | Name | Description |
| BYTE | 02 | CMD | The command: send a message. Note: all following data is encrypted as in the protocol v5 and v6. |
| DWORD.L | xx xx xx xx | CHECKCODE | The checksum of this packet. |
| WORD.L | xx xx | COMMAND | The command like sending a message or getting auto-response strings.
0x07d0 = 2000 - cancel given message. 0x07da = 2010 - acknowledge message. 0x07ee = 2030 - normal message. |
| ------- | ----------- | ------------ | The following data is the same as in type-2 messages through the server. |
| WORD.L | xx xx | UNKNOWN | Unknown: 0xe = 14. |
| WORD.L | xx xx | SEQUENCE | Our sequence number. |
| DWORD.L | 00 00 00 00 | UNKNOWN | Unknown: empty. |
| DWORD.L | 00 00 00 00 | UNKNOWN | Unknown: empty. |
| DWORD.L | 00 00 00 00 | UNKNOWN | Unknown: empty. |
| WORD.L | xx xx | MSGTYPE | The message type. |
| WORD.L | xx xx | STATUS | For messages sent: the current status of the user, but only with the bit to check for set. For acknowledges: the acknowledge status, which can be:0x00 - user is online, message was receipt, file transfer accepted 0x01 - refused 0x04 - accepted (to contact list) because of away 0x09 - refused because of occupied (retry by sending to contact list or as urgent) 0x0a - refused because of dnd (retry by sending to contact list) 0x0e - accepted (to contact list) because of na |
| WORD.L | xx xx | FLAGS | 0x0001 = 1 - unknown 0x0002 = 2 - urgent 0x0004 = 4 - sent to contact list (i.e. no bell) 0x0010 = 16 - real message (whatever that is) (??) 0x0020 = 32 - list (flag) (whatever that means) (??) 0x0040 = 64 - urgent (flag) (??) |
| LNTS | xx xx STR | MESSAGE | Finally the message. |
| DATA | ... | EXTRA | Extra data, depending on COMMAND. See PEER_MSG_* for more information. |
Examples
01:49:38 Ausgehendes TCP-Paket: (53) 02 CMD: message 00 00 00 00 ee 07 COMMAND: normal message 0e 00 UNKNOWN ff ff SEQUENCE 00 00 00 00 00 00 00 00 00 00 00 00 01 00 MSGTYPE 00 00 UNKNOWN 20 00 STATUS 06 00 41 68 6f 69 21 00 MESSAGE: "Ahoi!" 00 00 00 00 FOREGROUND ff ff ff 00 BACKGROUND
Attribution
Submitted by: tadu@gmx.de.


Modern programming languages abstract a lot of low-level details of how our code works. Nonetheless, a good understanding of underlying computer science concepts can help you write better code… and pass technical interviews 😉 Let’s talk about what is a CPU cache and why it’s important.
During my computer science degree, I learned about basic building blocks of electronic circuits, and how they can be used to build logic gates. Those logic gates provide a layer of abstraction that allows engineers to reason in terms of logic operations, and not electrical currents and voltages.
Logic gates can be combined to build a computer that provides us with another layer of abstraction. It allows a programmer to think in terms of a set of available CPU instructions and not just logic gates.
Languages like Python allow programmers to think in terms of high level concepts and not just basic operations the CPU supports — that’s yet another layer of abstraction.
In computer science, more than in any other field, we have many layers of abstraction that enable us to solve problems faster, without worrying about the underlying implementation.
But there is no such thing as a perfect abstraction. All abstraction leak at one point or another, and we suddenly have to deal with the underlying complexity.
That’s one of the reasons programming is so fun… and frustrating. Concepts and ideas interweave, sometimes making debugging very challenging — but also very rewarding.
High level question— low level answer
Let’s look at an example — a high level problem. Let’s say you have to decide between using a linked list and an array. The main requirement is that iterating through elements has to be as fast as possible. What do you think — which data structure will be faster?
The time it takes to iterate through all elements is proportional to the number of elements — the bigger the list/array, the longer it will take to visit all elements. Quite intuitive, right?
From a high-level point of view, it should not matter if you chose to use an array or a list. Both data structures should take more or less the same amount of time.
You might be surprised to learn that an array can be significantly faster than a linked list.
But whyyyyyyyyy
To understand why, we have to go down many levels of abstraction — we have to investigate how the hardware you’re using works. First, we need to understand what a CPU cache is.
Modern processors are very fast in comparison to how much time it takes to access main memory. To reduce the time it takes to access RAM, data that is most likely to be needed by the CPU is placed in a memory that’s smaller, faster, and located “closer” to the processor. We call that memory CPU cache.
Imagine working in a grocery store that is getting its supplies from a big warehouse. The warehouse can store a lot of stuff but it takes a while to find and access things kept there.
That’s why every grocery store has a certain supply of all products (those most likely to be purchased by customers) stored on its premises. You can’t store that many things in the store, but they are quickly accessible.
This is exactly how a CPU cache works.
You might be asking: how do we know what data should be stored in cache?
A computer program is basically just a sequence of instructions to be executed by the CPU. Those instructions are often accessed in order, one after another.
The same is true for arrays — we often iterate through them, accessing all elements in order, one after another. If we’re accessing an element with an index 5, it’s also likely we are interested in elements 6 and 7.
That’s why memory addresses that are “close” to a recently accessed address are more likely to be visited again. When accessing some memory, “nearby” segments of memory should be place in cache as well.
Okay, that is interesting. But what does it have to do with our data structures?
Let’s supposed that a CPU needs to access some memory address. First, it will check if it’s available in the cache. If it is, then it can be accessed very quickly.
However, if it’s not currently stored in the cache, we have to fetch it from the main memory. We call that a cache miss. Cache misses slow down the execution of our code because accessing the main memory is relatively slow.
Since all elements in the array are stored as a continuous block of memory, when
reading an element with some index k
, following elements (k+1
, k+2
,
k+3
,…) will be cached as well.
This leads to fewer cache misses and results in better performance compared to a linked list, as in a linked list elements might be scattered around the memory.
To answer a seemingly simple question we had to dive really deep. We had to understand what a CPU cache is and how it works.
I think we can all agree — programming never gets boring 😀


Style your site typography
Use an embedded font (no CSS required!), rely on system fonts reliably using Tachyons, or bring your own font files- your choice.
By Alison Hill in Theme Features
January 27, 2021
As with color themes, you can completely customize your site’s fonts within minutes of creating a new site. How you do it depends on how much control and customization you need.
Embedded fonts
Hugo Apéro includes 6 embedded fonts that work “out of the box.” We selected 3 serif and 3 sans-serif options that we thought looked good with this theme, in our humble opinions. All embedded fonts include real italics so you may emphasize to your heart’s content ❤! How to choose?
You may choose fonts for headings and body text in your site’s config.toml
file. Scroll down to find:
[params]
<!--snip snip-->
# use an embedded font-family
# serif options: Fraunces / EB Garamond / Bitter
# sans-serif options: Commissioner / Alegreya Sans / Metropolis
# if you import your own fonts, name them here too
customtextFontFamily = "Commissioner"
customheadingFontFamily = "Fraunces"
Here are the links to each font so you can see them in action:
Embedded font options
| Serif options | Sans-serif options |
|---|---|
| Fraunces | Commissioner |
| EB Garamond | Alegreya Sans |
| Bitter | Metropolis |
Use attractive system fonts
Alternatively, you may want to use a system font, which you know will be rendered reliably across languages, operating systems, and browsers. Apéro uses
Tachyons to render beautiful system font stacks for your site, making it super simple to configure and blazing fast to load. The default choices are sans-serif
or serif
, and can be assigned to headings and body text, respectively. Additional options can be found in the
Tachyons Font Family Reference. Why use system fonts?
Relying on systems fonts greatly improves page performance and can also help your web application/site blend in with the user’s operating system. Readability is strongly linked to familiarity, so this helps create a more fluid reading experience, allowing your users to focus on your content.
Here is a step-by-step, using the config.toml
file:
-
Leave both
customtextFontFamily
andcustomheadingFontFamily
blank (with empty quotes, or comment out the line entirely). -
Just below those keys, select a
textFontFamily
andheadingFontFamily
from the options listed here. All values are lower case, and exclude the.
in front.
[params]
<!--snip snip-->
# use an embedded font-family
# serif options: Fraunces / EB Garamond / Bitter
# sans-serif options: Commissioner / Alegreya Sans / Metropolis
# if you import your own fonts, name them here too
customtextFontFamily = ""
customheadingFontFamily = ""
# alternatively, leave empty and select basic font options: sans-serif or serif
# for more http://tachyons.io/docs/typography/font-family/
textFontFamily = "sans-serif"
headingFontFamily = "serif"
For example, you may choose:
textFontFamily = "courier"
headingFontFamily = "baskerville"
And your site would look like:
Use a custom font
Alright alright alright. So you still want to use your own fonts. You’ll need to do a bit more work to get this working, but not too much. If you made it here, I’m going to hope that you know a bit more about self-hosting fonts.
Here are the steps:
-
Create a
static/fonts/
folder, and add the actual font files you’d like to embed to that folder. To download Google fonts, there is a popular app to help you. Select a font, then download the zip file containing the font files you’ll need to embed. -
Create an
assets/
folder in the root of your website project (don’t add it to yourthemes/
directory!). -
Create a file named
custom.scss
in the newassets/
folder to define the@font-face
CSS rule for each font/weight combination you downloaded. For example, here is acustom.scss
that imports the Nanum Myeongjo font. The webfonts helper app will help write your CSS for you (using../fonts/
to customize the folder prefix correctly by default), like this:
/* nanum-myeongjo-regular - latin */
@font-face {
font-family: 'Nanum Myeongjo';
font-style: normal;
font-weight: 400;
src: local(''),
url('../fonts/nanum-myeongjo-v15-latin-regular.woff2') format('woff2'),
url('../fonts/nanum-myeongjo-v15-latin-regular.woff') format('woff');
}
Your final step is to go back to your config.toml
file and add the font-family
values for the font(s) you want to use to the customtextFontFamily
and/or customheadingFontFamily
keys. You can combine custom fonts with system fonts too.
[params]
<!--snip snip-->
# use an embedded font-family
# serif options: Fraunces / EB Garamond / Bitter
# sans-serif options: Commissioner / Alegreya Sans / Metropolis
# if you import your own fonts, name them here too
customtextFontFamily = ""
customheadingFontFamily = "Nanum Myeongjo"
# alternatively, leave empty and select basic font options: sans-serif or serif
# for more http://tachyons.io/docs/typography/font-family/
textFontFamily = "sans-serif"
headingFontFamily = ""
Here is what this could look like (thanks to workshop participant Issac Lee!)
If you do all this, you have my consent to delete the theme’s static/fonts/
folder that holds all the custom embedded fonts so you aren’t carrying those unnecessary files around with your site (do not delete the static/webfonts/
folder- that holds the
Font Awesome icons!).
For example, let’s examine the 3 commits necessary to make this magic happen:
Commit #1
Commit #2
Commit #3
Final result
- Posted on:
- January 27, 2021
- Length:
- 4 minute read, 811 words
- Categories:
- Theme Features
- Tags:
- style
- See Also:
- Style your site colors


Complex organ models grown in the lab
| Source: | University of Würzburg |
| Summary: | Scientists have successfully produced human tissues from stem cells. They have a complexity similar to that of normal tissue and are far superior to previous structures. |
In 2006, Japanese researchers came up with a new way of creating pluripotent stem cells through epigenetic reprogramming of connective tissue cells. Their discovery has yielded a highly valuable cell type which scientists can use to grow all cells of the human body in a Petri dish.
When culturing these so-called "induced pluripotent stem cells" (iPS cells) as three-dimensional cell aggregates, functional miniature versions of human organs, the so-called organoids, can be created by selectively adding growth factors. In the past years, this technique has been used to create cell culture models of the intestines, the lung, liver, kidneys and the brain, for example.
Previous organoids remained incomplete
Such organoid models are often surprisingly similar to real embryonic tissues. However, most remained incomplete because they lacked stromal cells and structures, the supportive framework of an organ composed of connective tissue. For instance, the tissues lacked blood vessels and immune cells. During embryonic development, all these cell types and structures are engaged in a process of constant exchange, they influence each other and thereby boost the development and maturation of the tissue and of the organ. Diseases, too, usually evolve in the tissue context with the involvement of different cell types. The selective incorporation of stromal components, and especially of functioning blood vessels, would therefore promote the maturation of already established organoid models.
Scientists from the University of Würzburg have now taken a major step towards developing such complex organoids. The anatomists, Dr. Philipp Wörsdörfer and Professor Süleyman Ergün, the head of the Institute of Anatomy and Cell Biology, were in charge of the project. In an article published in the journal "Scientific Reports" in early November 2019, the two researchers present the results of their work.
Mesodermal stem cells make miniature organs complete
"We used a trick to achieve our goal," explains Philipp Wörsdörfer. "First we created so-called mesodermal progenitor cells from pluripotent stem cells." Under the right conditions, such progenitor cells are capable of producing blood vessels, immune cells and connective tissue cells.
To demonstrate the potential of the mesodermal progenitor cells, the scientists then mixed these cells with tumour cells as well as with brain stem cells that had previously been generated from human iPS cells. This mixture grew to form complex three-dimensional tumour or brain organoids in the Petri dish featuring functional blood vessels, connective tissue, and in the case of the brain tissue, also brain-specific immune cells, the so-called microglia cells.
"In the future, the miniature organ models generated with this new technique can help scientists shed light on the processes involved in the genesis of diseases and analyse the effect of therapeutic substances in more detail before using them on animals and human patients," says Süleyman Ergün. This would allow the number of animal experiments to be reduced. Moreover, the organ models could contribute to gaining a better understanding of embryonic development processes and grow tissue that can be transplanted efficiently since they already have a functional vascular system.
make a difference: sponsored opportunity
Story Source:
Materials provided by University of Würzburg.
Note: Content may be edited for style and length.
Journal Reference:
- Philipp Wörsdörfer, Nahide Dalda, Anna Kern, Sarah Krüger, Nicole Wagner, Chee Keong Kwok, Erik Henke, Süleyman Ergün. Generation of complex human organoid models including vascular networks by incorporation of mesodermal progenitor cells. Scientific Reports, 2019; 9 (1) DOI: 10.1038/s41598-019-52204-7
Cite This Page:
| MLA | University of Würzburg. "Complex organ models grown in the lab." ScienceDaily. ScienceDaily, 19 November 2019. <www.sciencedaily.com/releases/2019/11/191119105454.htm>. |
| APA | University of Würzburg. (2019, November 19). Complex organ models grown in the lab. ScienceDaily. Retrieved November 19, 2019 from www.sciencedaily.com/releases/2019/11/191119105454.htm |
| Chicago | University of Würzburg. "Complex organ models grown in the lab." ScienceDaily. www.sciencedaily.com/releases/2019/11/191119105454.htm (accessed November 19, 2019). |


--- layout: page title: About header-img: "img/about-bg.png" ---
Attorney and international affairs analyst from North Carolina; current student in the Flatiron School's Learn Verified Program.


|
read_millis - milliseconds value
accept_millis - milliseconds value |
|
read_millis allows you to control how long reading data into a TCP stream can take before causing an error. By default, this is set to 10,000 (10 seconds). This means that if data takes longer than 10 seconds to arrive, an error occurs and the stream can not be used any more.
accept_millis allows you to control how the AcceptTCPStream() function will wait for a new connection. By default, this value is 0, so AcceptTCPStream() will return immediately if there is no new connection available. |
|
None.
|


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VAADA
A complete Promise to Deliver
INSTRUCTIONS
Move to bright environment
Check for strong internet connectivity
Capture Image or Record Video.
Press AR Icon to take picture


Everything related to a backend.
More...
Everything related to a backend.
- Copyright
- BSD License (see LICENSE.md or https://www.libelektra.org)
◆ backendOpen()
| Backend* backendOpen |
( |
KeySet * |
elektraConfig, |
|
|
KeySet * |
modules, |
|
|
Key * |
errorKey |
|
) |
| |
Builds a backend out of the configuration supplied from:
system/elektra/mountpoints/<name>
The root key must be like the above example. You do not need to rewind the keyset. But every key must be below the root key.
The internal consistency will be checked in this function. If necessary parts are missing, like no plugins, they cant be loaded or similar 0 will be returned.
ksCut() is perfectly suitable for cutting out the configuration like needed.
- Note
- The given KeySet will be deleted within the function, don't use it afterwards.
- Parameters
-
| elektraConfig | the configuration to work with. It is used to build up this backend. |
| modules | used to load new modules or get references to existing one |
| errorKey | the key where an error and warnings are added |
- Returns
- a pointer to a freshly allocated backend this could be the requested backend or a so called "missing backend".
- Return values
-
◆ backendOpenDefault()
| Backend* backendOpenDefault |
( |
KeySet * |
modules, |
|
|
const char * |
file, |
|
|
Key * |
errorKey |
|
) |
| |
Opens a default backend using the plugin named KDB_RESOLVER and KDB_STORAGE.
- Parameters
-
| modules | the modules to work with |
| errorKey | the key to issue warnings and errors to |
- Returns
- the fresh allocated default backend or 0 if it failed
◆ backendOpenModules()
| Backend* backendOpenModules |
( |
KeySet * |
modules, |
|
|
Key * |
errorKey |
|
) |
| |
- Returns
- a backend which gives plugin configuration of the module which is currently point to.
- Parameters
-
| modules | the modules to work with |
| errorKey | the key to issue warnings and errors to |
◆ backendOpenVersion()
| Backend* backendOpenVersion |
( |
Key * |
errorKey | ) |
|
Opens the internal version backend.
- Parameters
-
| errorKey | the key to issue warnings and errors to |
- Returns
- the fresh allocated default backend or 0 if it failed
◆ backendUpdateSize()
| int backendUpdateSize |
( |
Backend * |
backend, |
|
|
Key * |
parent, |
|
|
int |
size |
|
) |
| |
Update internal size in backend.
- Parameters
-
| backend | the backend to update |
| parent | for parent |
| size | to update (-1 default, 0 empty, >0 otherwise) |
- Precondition
- parent must be serializable namespace
- Return values
-
| -1 | if invalid parent (assert) |
| 0 | on success |
◆ elektraBackendSetMountpoint()
| int elektraBackendSetMountpoint |
( |
Backend * |
backend, |
|
|
KeySet * |
elektraConfig, |
|
|
Key * |
errorKey |
|
) |
| |
sets mountpoint
- Parameters
-
| backend | where the mountpoint should be set |
| elektraConfig | the config where the mountpoint can be found |
| [out] | errorKey | the name also has the mountpoint set |
- Precondition
- ksCurrent() is root key
- Postcondition
- ksCurrent() is root key
- Return values
-
| -1 | if no mountpoint is found or memory allocation problem |
| 0 | on success |