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@* * Copyright 2023 HM Revenue & Customs * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *@ @(form : Form[_] ,fieldName: String)(implicit messagesProvider: MessagesProvider ) @if(form.errors(fieldName).nonEmpty) {


About
Parsley is a personalized restaurant recommendation engine that solves the age-old question – where should I go to eat? It addresses a gap in today’s recommendation engines landscape, using cosine similarities as a quick, simple way to understand a user's preferences and make tailored recommendations.
Parsley searches more than 1.1 million US restaurants (with more than 40 restaurant-specific attributes for each) to surface relevant suggestions to users based on restaurants, bars and cafes that they already love – then surfaces relevant suggestions to users and allows users an easy way to access and visualize their favorite restaurants.
Users provide feedback on suggestions as Parsley learns their preferences, using sci-kit learn's cosine similarity algorithm to find restaurants with feature vectors that closely match a user’s preferences for a requested zipcode and cuisine.
Features
- Secure user log in functionality (pbkdf2_sha256 encryption)
- Search and autocomplete functionality (Google Maps JS Autocomplete)
- Matching/recommendation algorithm (cosine similarity)
- Filter by zip code and cuisine
- Save and view user favorites (LeafletJS/Mapbox JS API)
Image credit:
Leaf by Evan MacDonald from The Noun Project
Background images from Unsplash
The MIT License (MIT)
Copyright (c) 2011-2014 Twitter, Inc
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
Handcrafted in San Francisco in November 2014.


Supermarket Supervisor Caught Assaulting Female Colleague in Deeper Trouble
by Samuel MbataruA Kajiado court sitting on November 25, ordered that Ibrahim Taraiya, the man captured on CCTV camera assaulting a female colleague at Eastmatt Supermarket Kajiado branch, to be remanded until December 6.
According to a report by the Kenya News Agency (KNA), the prosecution team pushed for Taraiya to be denied bail in court in fear that he may be a flight risk, a key factor in bail denial for suspects.
Ibrahim Kiruti Taraiya who appeared before Chief Magistrate Susan Shitubi November 25, had pleaded with the court to release him on bail as he was the sole breadwinner for his family.
Through a Twitter post, the Office of the Director of Public Prosecutions wrote;
“Prosecution led by Solomon Njeru told the court that Ibrahim has been threatening Sarah Atieno, the teller he is accused of assaulting.”
According to KNA, the prosecution considered Taraiya to be a flight risk.
“The accused was arrested near the Kenya -Tanzania border, hence he is a flight risk. If released he is likely to interfere with witnesses as well as be a threat to the victim who has since been forced to quit her job and relocate to Nairobi as she fears for her life,” the prosecution argued.
Taraiya was re-arrested on Saturday after the ODPP issued an order for the arrest following social media uproar over the incident.
The suspect had earlier been arrested on Tuesday, November 19, but was released on Wednesday after the victim allegedly withdrew the case.
Taraiya who pleaded not guilty to the charges read to him will now appear before the Kajiado High Court in Kajiadoin ten days for the mention of the case.
The suspect was arrested on Saturday, November 23, in Kajiado after the video showing him conducting the heinous act went viral, in a move that attracted public outrage calling for prompt action from law enforcers.
In the video that did the rounds on social media platforms, Taraiya was seen pulling the cashier and later clobbering her mercilessly, an act that took the intervention of a colleague to save the female cashier.
The cause of the violent act has not yet been clearly established but investigations are still ongoing.
On November 22, the supermarket confirmed that Taraiya was their employee and had been laid off.
“We as Eastmatt condemn and do not stand for such heinous acts of disrespect against any of our staff and more so women.
“The individual in question acted solely and has been suspended with a report officially being filed with the Kajiado County police [who] are handling the matter accordingly,” the statement read.


{% extends "layout.html" %} {% block page_title %} Disclaimer {% endblock %} {% block content %} {% include version + "/includes/phase_banner_beta.html" %} {% include version + "/includes/idams-account-header.html" %} Home Allocation statements Disclaimer Disclaimer I understand that: I need to read the further education allocation information (opens in a new tab) (this replaces the allocation statement letter we have sent in previous years) ESFA can reduce or remove my allocation if they have evidence that public funds are at risk ESFA can reduce or remove my allocation if I do not meet the criteria for growth when they issue contract variations allocation statements are not legally binding – they do not create any legal obligation or expectation enforceable against the Secretary of State for Education, acting through the Education and Skills Funding Agency, an executive agency of the Department for Education I need to read the relevant funding and performance management rules (opens in a new tab) {% endblock %}
I understand that:


Freya:
These warm spring sunrays feel strange to me undoubtedly because I'm used to the frozen eternal winter of the Ice Palace. I fear they may be causing some equally strange thoughts, as I'm feeling rather generous right now.
Give me one Adena and I shall bestow a gift upon you for visiting me.
However, if you don't intend to bother me, leave me alone a while, say... 20 hours, so that I might enjoy this change of weather.
Oh and also, should you find any heart-warming items during your adventures, bring them back to me and I might feel even more generous...
[scripts_events.FreyaEvent.FreyaEvent:receiveGift|Give one Adena to Freya.]


The iPhone X has been price-slashed by £260 − but the offer ends soon
by Aatif SulleymanAmazon has brought the price of the 64GB iPhone X (SIM-free) down by a whopping £260 for Black Friday, which means you can get your hands on it for just £639 − that’s a 29% discount. This deal only applies to the silver model, and it expires at midnight.
I know what you’re thinking − the iPhone X is no longer one of Apple’s very latest mobiles. But that doesn’t mean it isn’t still a very good handset. And at this price it’s a very tempting purchase indeed.
We continually check thousands of prices to show you the best deals. If you buy a product through our site we will earn a small commission from the retailer – a sort of automated referral fee – but our reviewers are always kept separate from this process. You can read more about how we make money in our Ethics Policy.
The iPhone X came out in November 2017 (back then it would have set you back £999), and it was Apple’s flagship iPhone until the iPhone XS’ release a year ago. Both models have now been superseded by the iPhone 11 range.
However, despite being two years old the iPhone X is far from outdated. First off, it looks almost identical to Apple’s current flagship. But more importantly, its specs and features are not to be sniffed at either. These include:
- 5.8-inch OLED HDR display
- A11 Bionic CPU
- Face ID
- Dual 12-megapixel camera with OIS
- IP67
Crucially, Apple has bumped the iPhone X to iOS 13, a software update that has given it a new lease of life, adding dark mode and a much-improved Apple Maps to the mix. Better still, there’s a good chance it will get iOS 14 next year.
We continually check thousands of prices to show you the best deals. If you buy a product through our site we will earn a small commission from the retailer – a sort of automated referral fee – but our reviewers are always kept separate from this process. You can read more about how we make money in our Ethics Policy.
If you want an iPhone but don’t mind a former flagship rather than the latest and greatest that Apple has to offer, this is a deal that’s well worth your consideration.
If you want to stay up to date with the latest deals over Black Friday, follow us on Twitter @TrustedDealsUK
We may earn a commission if you click a deal and buy an item. That’s why we want to make sure you’re well-informed and happy with your purchase, so that you’ll continue to rely on us for buying advice.
Unlike other sites, we thoroughly review everything we recommend, using industry standard tests to evaluate products. We’ll always tell you what we find. We may get a commission if you buy via our price links. Tell us what you think – email the Editor


About Us.
We are a full-service landscape contracting and pool installation company in central Virginia.
We provide our clients the personalized attention, creativity, quality, craftsmanship, and lasting relationships they deserve.
It's simple: One company. One contract. No worries.
Services We Offer.
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Contact Us.
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Personal Library
Delete all books
Kill all
User Stories:
-
Nothing from my website will be cached in my client as a security measure.
-
I will see that the site is powered by 'PHP 4.2.0' even though it isn't as a security measure.
-
I can
post a
title
to /library/v1/books/ to add a book and returned will be the object with the
title
and a unique
_id
.
-
I can
get /library/v1/books/ to retrieve a list of all books containing
title
,
_id
,
commentcount
.
-
I can
get /library/v1/books//{_id} to retrieve a single object of a book containing
title
,
_id
, and
comments
(empty array if no comments present).
-
I can
post a
comment
to /library/v1/books//{_id} to add a comment to a book and returned will be the books object similar to
get /library/v1/books//{_id}.
-
I can
delete /library/v1/books//{_id} to delete a book from the collection. Returned will be 'delete successful' if
successful.
-
If I try to request a book that doesn't exist I will get a 'no book exists' message.
-
I can send
delete request to /library/v1/books/ to delete all books in the database. Returned will be 'complete delete successful'
if successful. For practical reasons the first book can't be deleted
Example Usage:


Exporting and Importing a Wizard
If you own more than one site, you may want to use the same wizard in two or more of them. To do so, you first export the
wizard to your desktop as a compressed file and then import it to the other site(s) where you plan to use it.
Exporting a Wizard
To export a wizard as a compressed file, access the Wizards tool and follow these steps:
- If the Wizards home page is not displayed, click the Reset button.
- Find the wizard you want to export.
- Click the Export link below the name of the wizard. Sakai displays the Opening File window.
- Follow the instructions.
- Upload the compressed file to Resources.
Importing a Wizard
To import a wizard from your desktop as a compressed file, access the site to which you want to import it and follow these
steps:
- Add the file to Resources.
- Access the Wizards tool. If the Wizards menu bar is not displayed, click the Reset button.
- Click the Import button on the menu bar. Sakai displays the Import Wizard screen.
- Click Select files. Sakai displays the Select Item screen.
- Select the compressed file for the wizard by following the instructions given for selecting an item. After you click Finish,
Sakai displays the Import Wizard screen again.
- The name of the file you chose is displayed in the Name box.
- Click the Import button. Sakai imports the file from the Resources area and redisplays the Wizards home page. The imported
wizard is listed there. It has the same name and instructions as it had on its original site. Or, to return to the home page
without importing the file into the Forms tool, click Cancel.
Regardless of the state (published or unpublished) of the wizard on the original site, it is always imported in the unpublished
state.


This is the API documentation for 'activesupport-3.2.12 Documentation'.
[Validate]
Generated with the Darkfish Rdoc Generator 2.


EDITOR'S PICKS
HOCKEY
Sreejesh to lead India in the Asian Champions Trophy Hockey
TENNIS
Sharapova slams ITF antidoping chief after her reduced ban
KABADDI
Kabaddi World Cup 2016 | Preview : India look set to defend title
FOOTBALL
Czech players who told female referee to return ‘to the cooker’ ...


Blue Gene, Jr.
问题描述 :
Inspired by IBM’s Blue Gene project, the CEO of Universal Biological Machinery (UBM), has called on you, UBM’s top software engineer, to develop a program that will calculate the mutation of the Areopagus-virus, a virus discovered on Mars by your company’s privately-subsidized (top-secret) space program.
输入:
Input to this problem will consist of a (non-empty) series of up to 100 data sets. Each data set will be formatted according to the following description, and there will be no blank lines separating data sets.
A single data set has 3 components:
A single data set has 3 components:
- Start line – A single line, “START N”, where 1 <= N <= 20.
- Viral code – A sequence of N alphanumeric characters. Alphanumeric characters will consist of an uppercase letter (A-Z) or a digit (0-9).
- End line – A single line, “END”
Following the final data set will be a single line, “ENDOFINPUT”.
输出:
For each data set, there will be exactly one output set, and there will be no blank lines separating output sets.
A single output set consists of a single line of the viral code after it has stabilized (through mutating).
The viral code will mutate according to the following rules:
- Initially the first viral segment to mutate begins with the first alphanumeric character of the viral code and ends with the rightmost alphanumeric character of the code.
- If the first alphanumeric character of a viral segment is a letter (A-Z), that alphanumeric character is considered “unstable”, and will mutate into n, where n is the number of mutations that occur to the viral segment immediately to the unstable alphanumeric character’s right (see #5), unless n is greater than 9, in which case the unstable alphanumeric character will mutate into n % 10. Also, if there is no viral segment immediately to the right of the unstable alphanumeric character, the unstable alphanumeric character will mutate into 0.
- If the first alphanumeric character of a viral segment, n, is a positive number (1-9), that alphanumeric character is also considered “unstable”, and will mutate into n-1. It also causes the viral segment beginning with the alphanumeric character n alphanumeric characters to its right and ending with the rightmost alphanumeric character of the viral code to mutate. If there is no alphanumeric character n alphanumeric characters to its right, then the viral segment immediately to its right (see #5), if one exists, will mutate.
- If the first alphanumeric character of a viral segment is 0, that alphanumeric character is considered “stable”, and will not mutate (the alphanumeric character will remain a 0 and a mutation will not be considered to have occurred).
- A viral segment immediately to the right of an alphanumeric character begins with the alphanumeric character one position to its right and ending with the rightmost alphanumeric character of the viral code.
样例输入:
START 1 A END START 4 A1B2 END START 15 A3B2CCC4AD1232R END START 15 0ABCDEFGHIJKLMN END START 11 ABCDEFGHIJK END START 10 9AAAAAAAAA END ENDOFINPUT
样例输出:
0 3011 82B26543AD11310 0ABCDEFGHIJKLMN<PHONE_NUMBER>0 8AAAAAAAA0
解题代码:
/* @author:zeropinzuo */ import java.io.*; import java.util.*; public class Main{ static Scanner cin; public static void main(String args[]){ cin = new Scanner(System.in); while(run()==true) ; } static boolean run(){ String marker = cin.next(); if(marker.compareTo("ENDOFINPUT")==0) return false; int n = cin.nextInt(); Sequence seq = new Sequence(cin.next()); System.out.println(seq.mutatedSequence()); cin.next(); return true; } } class Sequence{ char[] content; public Sequence(String s){ content = s.toCharArray(); } public Sequence(char[] content){ this.content = content; } private int mutate(int start){ int count; if(start>=content.length) return 0; char c = content[start]; if(isLetter(c)){ count = mutate(start+1); content[start] = (char)(count%10+'0'); count++; return count; } else if(c == '0') return 0; else if(isNumber(c)){ content[start] = (char)(c-1); if((start+c-'0')< content.length) count = mutate(start+c-'0'); else count = mutate(start+1); count++; return count; } return -1; } private boolean isLetter(char c){ if((c<='Z')&&(c>='A')) return true; return false; } private boolean isNumber(char c){ if((c<='9')&&(c>='0')) return true; return false; } String mutatedSequence(){ mutate(0); return new String(content); } }
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这是研发类的题还是算法类？
这个是代码高亮功能，那就再换一个颜色
失误失误，转载错了。已经改正，抱歉。
多谢支持！
int L[m+1][n+1];这样定义出错，这个在gcc上可以编译通过 在VS上不行 应该改为new 或者vector
很有意思，可惜我很菜啊
算法是程序的灵魂，算法分简单和复杂，如果不搞大数据类，程序员了解一下简单点的算法也是可以的，但是会算法的一定要会编程才行，程序员不一定要会算法，利于自己项目需要的可以简单了解。
Java真是解决大数的利器
如果两个序列的最后字符不匹配（即X [M-1]！= Y [N-1]）
L（X [0 .. M-1]，Y [0 .. N-1]）= MAX（L（X [0 .. M-2]，Y [0 .. N-1]），L（X [0 .. M-1]，Y [0 .. N-1]）
这里写错了吧。
妈呀！这个模板好长OwQ！
simple, however efficient. A lot of instances it is difficult to get that a??perfect balancea?? among usability and appearance. I must say that youa??ve done a exceptional task with this. Also, the blog masses quite fast for me on Web explore.
不错的网站，建议添加些比赛信息
这个问题别太纠结了，不同的编译器结果不一样
对，还是这种实现比较好理解。虽然效率有点低


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After training, shift the red point by changing the values from 0 to 500. Then press 'Predict' to check the class.


I am a data analyst. I have been working on data for four years. In support of my work, I have studied a variety of data processing and visualization tools, including Google Data Studio, Tableau, Python and Google Analytics. I keep developing my data analytics skills by taking classes and give talks at knowledge-sharing events about basic data analysts, and also analyze other interesting things outside of my work. I am confident that I have the capacity to fully understand the flow of business. So that when there are business issues, I can provide what stakeholders need to make decisions.
MOVING TO PORTFOLIO


07/24/2014 15:00:29 ¶ ● magnoliapearl: konistehdump: 70sscifiart: Almost there I wish kind of true though


Pamela Hathway
- Lab member: 2016-2020
Pamela Hathway was a PhD student working on the problem of large scale neural data analysis, primarily on Neuropixels data. She developed a new technique called "neural topic modelling", adapting topic modelling methods from machine learning originally designed for finding topics in sets of text documents automatically.
Publications
Note that only publications as part of the Neural Reckoning group are included here (see external publications below for full list).
2020
-
Hathway P (2020)
Biologically-inspired machine learning approaches to large-scale neural data analysis.
PhD thesis, Imperial College London
2019
2018
External publications
This is a short preview of the publications from other sources (ORCID, Semantic Scholar). Note that publications from work done outside the Neural Reckoning group are included in this list.
2022
2020
2019
- M. Rogdaki, et al. (2019)
Glutamatergic function in a genetic high-risk group for psychosis: A proton magnetic resonance spectroscopy study in individuals with 22q11.2 deletion
European Neuropsychopharmacology - P. Hathway, Dan F. M. Goodman (2019)
Neural Topic Modelling
2019 Conference on Cognitive Computational Neuroscience
2018
- S. Jauhar, et al. (2018)
Determinants of treatment response in first-episode psychosis: an 18F-DOPA PET study
Molecular Psychiatry
2016
- S. Jauhar, et al. (2016)
P.3.f.031 Determinants of treatment response in first episode psychosis: a prospective 18F-DOPA PET study
European Neuropsychopharmacology
2015
- F. Hell, et al. (2015)
P182. Patterns of gait-related electrophysiological activity in the human subthalamic nucleus of patients with Parkinson’s disease
Clinical Neurophysiology


If the UFO is destroyed when shot down, the XCOM Council will award you a bounty. The amount of money is fixed; the number of alloys is uniformly chosen from the ranges below.
The chance for a UFO to be destroyed depends on the amount of damage dealt by the final hit against it.
The damage-per-second (DPS) if this UFO is firing against the given aircraft.
DPS here is informative, but keep in mind that air combat in Long War is inherently very swingy. DPS can appear deceptively low because hit chances aren't very high in general. In the worst case,
a critical hit can deal up to 3 times the amount of damage listed in the weapon's stats (not including damage bonuses from Alien Research). Take these factors into consideration for your engagements.
The number of Alien Alloys which can be recovered by a ground assault. This can be increased by 20% with the corresponding UFO Analysis research, and a further 20% by the Alien Metallurgy project in the Foundry.
A special pod unique to UFO missions, representing the commanding members of the UFO's crew. Typically this pod is located deep within the UFO, though this is not guaranteed.
In addition to generally containing powerful aliens, when the Command Pod is activated, every unactivated pod on the map will begin to converge on its location. For this reason, the Command Pod
is generally engaged last when possible.
For most UFOs, the Command Pod will upgrade after XCOM conducts its first assault on an Alien Base.
How many aliens can be expected if assaulting this UFO after it has crashed (been shot down). This number does not include the Command Pod.
Note that, due to how pod mechanics work, there may be fewer enemies in the mission than this, especially early in a campaign.
How many aliens can be expected if assaulting this UFO after it has landed to perform its mission. This number does not include the Command Pod.
Note that, due to how pod mechanics work, there may be fewer enemies in the mission than this, especially early in a campaign.
How many aliens can be expected if assaulting this UFO when it is laying a trap. See below sections for help relating to trap UFOs. This number does not include the Command Pod.
Note that, due to how pod mechanics work, there may be fewer enemies in the mission than this, especially early in a campaign.
UFOs gain a set number of enemies after a certain amount of Alien Research is reached. These enemies may be split across existing pods, or may result in the creation of a new pod.
These items are part of the UFO, and appear in the mission. On a landed UFO, all of these will be present, and all will be recovered by XCOM if not damaged during the mission. On a crashed UFO,
some of these will already have been damaged in the crash. For more info on that, see "Crashed UFOs" under "Ground Assault General Info", below.
The amount of bonus research the aliens will gain if this mission is not stopped by XCOM.
The amount of resources the aliens will gain if this mission is not stopped by XCOM.
The minimum level of alien research required for the aliens to field this type of UFO on this mission.
The number of resources required for the aliens to field this type of UFO on this mission.
Note that they don't actually have to spend those resources; they just won't field this UFO if they have less. Resources will only be lost if XCOM
damages or destroys the UFO, or assaults it while it is landed.
The number of resources the aliens will lose if a UFO of this type is destroyed (either shot down, or landed and then successfully assaulted).
If a UFO is only damaged, it will cost the aliens resources to repair, proportional to the percentage of the UFO's health lost.
The time-to-kill (TTK) if this UFO is firing against the given aircraft. This is the time it would take the UFO to kill XCOM's aircraft.
TTK here is using a very basic model (aircraft health divided by UFO's DPS) and should not be regarded as authoritative in any way. It is only to illustrate the relative
power of different UFOs, and the power of the Firestorm over the Interceptor. Your Interceptor might still go down in a single crit shot, or it might dodge everything and solo
a Battleship.


Session Hijacking
Contents
Description
- Session hijacking is when an attacker takes over a TCP session between two machines, quite often in midstream, and usually for the purposes of either stealing information or disrupting or inhibiting the flow of information.
- Because authentication only occurs at the start of TCP session, an attacker can use captured, brute –force, or a reverse-engineered session ID to seize control of a legitimate user’s Web application session while the session is still in progress.
- A session ID is an identification string (usually a long, random, alphanumeric string) that is transmitted between the client and the server. Session IDs are commonly stored in cookies, URLs, and hidden fields of Web pages.
- There are several problems with session IDs.
- Many popular Web sites use algorithms based on easily predictable variables, such as time or IP address to generate the session IDs, causing them to be predictable. If encryption is not used (typically, SSL), session IDs are transmitted in the clear and are susceptible to eavesdropping.
- Session hijacking involves an attacker using brute force captured or reverse-engineered session IDs to seize control of a legitimate user's session while that session is still in progress. In most applications, after successfully hijacking a session, the attacker gains complete access to all of the user's data and is permitted to perform operations instead of the user whose session was hijacked.
- Session IDs can also be stolen using script injections, such as cross site scripting. The user executes a malicious script that redirects the private user's information to the attacker.
Anatomy of an Exploit
- In blind hijacking, the attacker injects such data as malicious commands into intercepted communications between two hosts commands such as “net.exe localgroup administrators /add EvilAttacker.
- Called blind hijacking because the attacker can only inject data into the communications stream, he or she cannot see the response to that data (such as the command completed successfully).
- In a session theft attack, the attacker neither intercepts nor injects data into existing communication between two hosts.
- The attacker creates new sessions or uses old ones.
- This type of session hijacking is most common at the application level, especially Web applications.
- Session hijacking at the network level is especially attractive to attackers. They don't need host access, as they do with host-level session hijacking. Nor do they need to customize attacks on a per-application basis, as they do at the application level. Network-level session-hijacking attacks allow attackers to remotely take over sessions, usually undetected.
- Successfully hijacking a session at the network level requires an attacker to overcome various obstacles.
Real-World Examples
- In 2001, a vulnerability was reported in Sun's NetDynamics application server platform, where a user who authenticates with NetDynamics receives a session id and a random unique identifier.
- This session id and identifier remain active for up to 15 s after the user logs in, and a subsequent user can make use of those credentials to hijack the logged-in account.
Test Techniques
- Most testing of session-hijacking vulnerabilities is begun by looking carefully at all protocols in use your system and determine what information they exchange and how. In the clear? How is the remote server identified? Is authentication done only at the start of a session?
- If your system authenticates your user only at start of a session, and after which the system on the other side of the connection is trusted, Your system is most likely vulnerable to a session-hijacking attack.
- Once you have a good idea of what your system does, you can use one of the session-hijacking and man-in-the-middle (MITM) tools available. to see if you can demonstrate the vulnerability. A good tool to try is Ettercap (http://ettercap.sourcefoixe.neta
External Links
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Subtitle


Software Developer
Linux enthusiast
Hi, I am a Software Developer based in Selva Val Gardena, Italy. I love technology and Software development, enjoy working with others and creating new exciting things. For me automating everything is a duty, furthermore I am passionate about Linux.


Ballet Classes
That will Make You Advance
You may be a skillful, effective but if you don't
trust your personal and the opposite. Then the chances
of improving and expanding the bussiness you deal with,
are extremely limited.
You may be a skillful, effective employee but if you don't trust your personnel and opposite.
FRANK SINATRA
We are createive people who are passionate about that we do. We are not just dancers, but friends with long histrory.


The menu Further Algorithms contains the following commands:
| MARS | Encryption and decryption using MARS (AES candidate). |
| RC6 | Encryption and decryption using RC6 (AES candidate). |
| Serpent | Encryption and decryption using Serpent (AES candidate). |
| Twofish | Encryption and decryption using Twofish (AES candidate). |
| DESX | Encryption and decryption using DESX. |
| DESL | Encryption and decryption using DESL. |
| DESXL | Encryption and decryption using DESXL. |


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The Mechanics of RSA
Number of ways a message can be enciphered: Theoretically infinite, around 10^77 on most modern systems
Ease of encryption: High
Security: High*
RSA is also based upon one-way functions, but differs significantly from the Diffie-Hellman system. The RSA system works as follows- each party on the internet has a public key and a private key. The public key is freely available to any other person upon request, whereas the private key must never be shared with anybody else. When one party wishes to send a secret message to the other, the sender looks up the recipient's public key and encrypts the message with it.
Crucially, the encrypted message is infeasible for anyone (including the sender) to decipher without the recipient's private key. Therefore, the encrypted message may be sent freely, as the recipient is the only one who can decrypt it within a reasonable time.
The RSA algorithm is the algorithm used to encrypt virtually all traffic on the internet today.


When infants can get the flu shot
by George Hale- Infants can get their first flu shot once they’re at least 6 months old.
- Children between 6 months to 8 years old who are getting their first flu vaccine will need two injections spaced at least four weeks apart.
- There are no vaccine products approved for infants younger than 6 months, which means parents must take extra care to protect their infants from infection.
- This article was reviewed by Tania Elliott, MD, who specializes in infectious diseases related to allergies and immunology for internal medicine at NYU Langone Health.
- Visit Insider’s homepage for more stories.
Since 2010, an estimated 7,000 to 26,000 children under 5 years old have been hospitalized for the flu in the US, alone.
“Infants are proven more likely to be hospitalized or die from influenza illness, so all infants eligible for the vaccine should receive it,” says Charisma Garcia, MD, a pediatrician with the Center for Children and Women at Texas Children’s Health Plan.
When can infants get the flu shot?
“Infants starting at 6 months can get the flu shot,” Garcia says.
Children between 6 months to 8 years old getting their first flu vaccine will need two injections spaced at least four weeks apart. The second dose gives the first dose an extra boost, and the interval provides the first dose enough time to reach its peak effectiveness.
 And with flu strains and vaccines changing from year to year, Garcia recommends that parents follow expert advice.
“Every new flu season check with your pediatrician for the latest recommended formulation,” Garcia says.
What if my infant is too young to get a flu shot?
There are no vaccine products approved for infants younger than 6 months, which means parents must take extra care to protect their infant from infection.
The best way to protect your newborn is to make sure everyone who will be close by is vaccinated. But there are also measures that the mother can take before giving birth.
While she’s still pregnant, mom should get a flu shot because the antibodies she builds up can pass through the placenta and provide months of immunity for her infant after birth.
Possible side effects from the flu shot
After vaccination, infants and children will sometimes experience minor side effects such as redness and soreness at the injection site, fever, and aches. These symptoms are normal and a sign your kid’s immune system is working properly.
 It’s less common, but in a given season, the flu vaccine is usually 40 to 60% effective. This means they have a 40 to 60% chance of getting sick with the flu if they are exposed to it.
 “The vaccine reduces the risk of severe morbidity from influenza by three-fourths,” Garcia adds.


Kesha Revived "Tik Tok" at the AMAs, and the Internet Could Not Be More Thrilled
by Karenna Meredith"Don't stop, make it rock!" Kesha must still take that advice from her single "Tik Tok" a decade later. The 32-year-old singer stepped onto the American Music Awards stage on Sunday night for the first time in six years. She started things off with a passionate rendition of her new song "Raising Hell" featuring Big Freedia, followed by a revival of her 2009 breakout hit, which earned quite a reaction from the crowd.
The audience in real life and online could not contain their excitement, resulting in an enthusiastic response and plenty of funny tweets. Ahead, see a few of our favorite reactions to Kesha's surprise performance. We love a good throwback, and clearly her fans do too!


Change History
Version: 1.1; Status: Final
- Rebranding
- This domain message specification has been rebranded to HSCIC.
- The Distribution Envelope Schema table has been moved out of the "Definition" tab into a new tab called "Schema".
- The About page's Overview section has been improved for clarity.
- The Definition page's Description fields have been altered for clarity.
Version: 1.0; Status: Final
- Specification
- The status of the ITK Correspondence pack that uses this associated specification domain has been changed to final. This associated specification domain's status has also been changed to final to reflect this change.
Version: 1.0; Status: RC1
- Specification
- First release of this specification.


This is something which is a text
hello world!
Something is Awesome
Add name
Remove name
first person
second person
Javascript boxes with for cycle:


Source code for SimpSOM.hexagons
"""
Hexagonal tiling library
F. Comitani @2017
"""
import numpy as np
import matplotlib.pyplot as plt
from matplotlib import transforms
from matplotlib.patches import RegularPolygon
from matplotlib.collections import PatchCollection
[docs]def coorToHex(x,y):
"""Convert Cartesian coordinates to hexagonal tiling coordinates.
Args:
x (float): position along the x-axis of Cartesian coordinates.
y (float): position along the y-axis of Cartesian coordinates.
Returns:
array: a 2d array containing the coordinates in the new space.
"""
newy=y*2/np.sqrt(3)*3/4
newx=x
if y%2: newx+=0.5
return [newx,newy]
[docs]def plot_hex(fig, centers, weights):
"""Plot an hexagonal grid based on the nodes positions and color the tiles
according to their weights.
Args:
fig (matplotlib figure object): the figure on which the hexagonal grid will be plotted.
centers (list, float): array containing couples of coordinates for each cell
to be plotted in the Hexagonal tiling space.
weights (list, float): array contaning informations on the weigths of each cell,
to be plotted as colors.
Returns:
ax (matplotlib axis object): the axis on which the hexagonal grid has been plotted.
"""
ax = fig.add_subplot(111, aspect='equal')
xpoints = [x[0] for x in centers]
ypoints = [x[1] for x in centers]
patches = []
if any(isinstance(el, list) for el in weights) and len(weights[0])==3:
for x,y,w in zip(xpoints,ypoints,weights):
hexagon = RegularPolygon((x,y), numVertices=6, radius=.95/np.sqrt(3),
orientation=np.radians(0),
facecolor=w)
ax.add_patch(hexagon)
else:
cmap = plt.get_cmap('viridis')
for x,y,w in zip(xpoints,ypoints,weights):
hexagon = RegularPolygon((x,y), numVertices=6, radius=.95/np.sqrt(3),
orientation=np.radians(0),
facecolor=cmap(w))
patches.append(hexagon)
p = PatchCollection(patches)
p.set_array(np.array(weights))
ax.add_collection(p)
ax.axis('off')
ax.autoscale_view()
return ax


Stringing Work Order
Name
Age
Years Playing
Postion
Head
Mesh
Sidewall
Shooters
Shooter Style
Pocket location
Whip
Additonal Comments


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Baffle adds an animated obfuscation effect to any text. Reload page to see effect. Apply these baffling classes!
Baffles once upon page load
Baffles once, but for a longer duration (3 seconds)
Baffles for a prolonged period
Baffles endlessly
Tumble text characters either forward, backwards, or both! The tumble animation starts upon page load.
Classes
.tumbletext - apply to any text element
.forwards - tumbles all characters forward
.backwards - tumbles all characters backward
.mixed - combines both forward and backwards, alternating characters
EXAMPLE: .tumbletext.mixed
TIP: Make sure there is at least 1em of padding on the bottom of any parent element that contains tumbled text.
Truncate a paragraph of text to a preset number of words. Even if there are a fewer number of words, an elipsis (...) will be appended to the end of the truncated text. Apply any of these classes to any text to truncate.
Lorem ipsum no facer prompta vim, movet ubique qui ei. Per no regione aliquid, ea mei nulla scribentur liberavisse. Vim cu tale ludus possit, discere suavitate nam ad. No verterem reprimique vix, phaedrum hendrerit an quo. Qui feugait apeirian ut, ne virtute numquam mandamus mea. Eos et enim dicant deterruisset.
Lorem ipsum no facer prompta vim, movet ubique qui ei. Per no regione aliquid, ea mei nulla scribentur liberavisse. Vim cu tale ludus possit, discere suavitate nam ad. No verterem reprimique vix, phaedrum hendrerit an quo. Qui feugait apeirian ut, ne virtute numquam mandamus mea. Eos et enim dicant deterruisset.
Lorem ipsum no facer prompta vim, movet ubique qui ei. Per no regione aliquid, ea mei nulla scribentur liberavisse. Vim cu tale ludus possit, discere suavitate nam ad. No verterem reprimique vix, phaedrum hendrerit an quo. Qui feugait apeirian ut, ne virtute numquam mandamus mea. Eos et enim dicant deterruisset.
Lorem ipsum no facer prompta vim, movet ubique qui ei. Per no regione aliquid, ea mei nulla scribentur liberavisse. Vim cu tale ludus possit, discere suavitate nam ad. No verterem reprimique vix, phaedrum hendrerit an quo. Qui feugait apeirian ut, ne virtute numquam mandamus mea. Eos et enim dicant deterruisset.
Lorem ipsum no facer prompta vim, movet ubique qui ei. Per no regione aliquid, ea mei nulla scribentur liberavisse. Vim cu tale ludus possit, discere suavitate nam ad. No verterem reprimique vix, phaedrum hendrerit an quo. Qui feugait apeirian ut, ne virtute numquam mandamus mea. Eos et enim dicant deterruisset. Odio putent discere cu vim. Oportere disputationi ea mea. Per civibus constituam et, an feugait omittam mel, no suas quas doming qui.
Fittext makes any text aggressively responsive, and scales the text in proportion to the window width.
.fittext - Best scales text to fit within container.
Brutalist Framework 2.3
.fittext-c - Compress scaling of text size.
Brutalist Framework 2.3
.fittext-cc - Conservative compression of scaling text.
Brutalist Framework 2.3
.fittext-x - Expands scaling text aggressively.
Brutalist Framework 2.3
.fittext-xx - Extreme expansion of scaling text!!
Brutalist Framework 2.3
Warp your text into curves, spirals, circles, and waves! Works best on paragraphs. All are fully responsive.
 It is fully responsive, too!
Add a glitch effect to any element! Works on images and text, or even entire areas!
Glitched Circle Image
Glitched Paragraph
This is a rather glitchy paragraph. You could even baffle all your firking enemies!
A more aggressive glitch effect than the above.
Blink is back! Apply theses classes to blink any element, even entire areas!
ALERT!
ALERT!
ALERT!
////////
WARNING!!!!
////////
Here is a fast-blinking span and image:
Get Your Blinker Fluid NOW!

Apply a throbbing, pulsing effect. It's CSS-based, so no javascript is needed. Simply apply this class to any element:
.throb
.throb-throw
Spin any element constantly. Apply these classes:
Rotate Text allows the rotation of text within an element.
Rotate Text requires javascript, and the markup uses data attributes to configure the settings. You will need to apply a unique ID to each individual Rotate Text element. The markup is as follows:

First Text Phrase

Second Phrase of Text

Last Text Phrase

Rotate Interval = 3000 = 3 seconds until next rotation
Rotate Animate - There are numerous animation styles supported. Consult animations.css.
Equal heights makes boxes the same height within a multi-column layout. In the example below, notice how all 3 column boxes have the same height.
.equal-height
Column One
This box has 2 lines of text
Column Two
This box has several lines of text.
Some small text.
Another small text line.
Column Three
This box has 2 lines of text
Apply these classes to add an animated gradient background to any element!
Let's get ready to rumble!
Brutalize any element by making it rumble! Simply apply the following classes to any element.
Stop Constant Rumble
By applying these classes together, users can stop a constantly rumbling element:
.rumble.strumble - rumble constantly, stop upon click
.rumble.sthrumble - rumble constantly, stop upon hover
.rumble
Constant rumbling!
.prumble
Pulse rumble, constantly
.drunk
Aggressive constant rumble
.hyper
Extra aggressive constant rumble
.crumble
Rumble constantly on click
.trumble
Triggered rumble on click for only 1.5 sec
.hrumble
Rumble upon hover
.mdrumble
Rumble on mousedown
.caffeinated
Aggressive rumble on hover
Blenders allow text or any other element to blend with its background.
NOTE: Apply only one class per element. Combining multple classes together isn't possible (except unblend).
In the example below, we use a blue box with white text and apply different blender classes to each.
Classes
.lighten-blend
.darken-blend
.hue-blend
.sat-blend (saturation)
.lum-blend (luminosity)
.color-blend
.dodge-blend
.burn-blend
.diff-blend (difference)
.exc-blend (exclusion)
.soft-blend (soft light)
.hard-blend (hard light)
.overlay-blend (inverted hard light)
.multi-blend (darkens element)
.screen-blend (lightens element)
.unblend (removes blend from current element)
.color-blend
.diff-blend
.dodge-blend
.multi-blend
.exc-blend
.screen-blend


Mobile Sensors Test
Emmit Gyro Data
Tick [Emmit Gyro Data] to Start
Emmit Touch
Tick [Emmit Touch] and touch and move


LOGO HERE
Cod Noob!
Student
Subject
Assignment
Class Note
Home
Hi, Code Noob!
Welcome to Asclepius Class
Access your Subject and Class here
Subject Offered:
Class:


Principal Component Analysis class
The class is used to compute a special basis for a set of vectors.
The basis will consist of eigenvectors of the covariance matrix
computed from the input set of vectors. The class PCA can also
transform vectors to/from the new coordinate space defined by the
basis. Usually, in this new coordinate system, each vector from the
original set (and any linear combination of such vectors) can be
quite accurately approximated by taking its first few components,
corresponding to the eigenvectors of the largest eigenvalues of the
covariance matrix. Geometrically it means that you compute a
projection of the vector to a subspace formed by a few eigenvectors
corresponding to the dominant eigenvalues of the covariance matrix.
And usually such a projection is very close to the original vector.
So, you can represent the original vector from a high-dimensional
space with a much shorter vector consisting of the projected vector's
coordinates in the subspace. Such a transformation is also known as
Karhunen-Loeve Transform, or KLT. See
http://en.wikipedia.org/wiki/Principal_component_analysis
Example
The following shows a quick example of how to reduce dimensionality
of samples from 10 to 3.
Xtrain = randn(100,10);
Xtest = randn(100,10);
pca = cv.PCA(Xtrain, 'MaxComponents',3);
Y = pca.project(Xtest);
Xapprox = pca.backProject(Y);
The class also implements the save/load pattern to regular MAT-files,
so we can do the following:
pca = cv.PCA(randn(100,5));
save out.mat pca
clear pca
load out.mat
disp(pca)
|
|
addlistener |
Add listener for event. |
|
|
backProject |
Reconstructs vectors from their PC projections |
|
|
compute |
Performs Principal Component Analysis on the supplied dataset |
|
|
delete |
PCA destructor |
|
|
eq |
== (EQ) Test handle equality. |
|
|
findobj |
Find objects matching specified conditions. |
|
|
findprop |
Find property of MATLAB handle object. |
|
|
ge |
>= (GE) Greater than or equal relation for handles. |
|
|
gt |
> (GT) Greater than relation for handles. |
| Sealed
|
isvalid |
Test handle validity. |
|
|
le |
<= (LE) Less than or equal relation for handles. |
|
|
lt |
< (LT) Less than relation for handles. |
|
|
ne |
~= (NE) Not equal relation for handles. |
|
|
notify |
Notify listeners of event. |
|
|
project |
Projects vector(s) to the principal component subspace |
|
|
read |
Read PCA from file |
|
|
write |
Write PCA to file |


Tavi Gevinson. Michelle Phan. Tracy Dinunzio. Probably not the first names that come to mind when you think women in tech. Scrap-booking. Shopping. Makeup. Probably the last things you think of when you think of tech. But, these women have taken their passions, leveraged technology, and created very successful businesses.
Stereotypes of the roles women play in technology form in the most obvious place- media. What happens when we finally get an empowered hack-master leading female role in a movie? Oh that's right, we get The Girl With The Dragon Tattoo, a total outcast manrepeller. Or what about 1995's The Net- heroine debugs a fatal system and saves the day? Turns out the heroine, though beautiful, devotes her life to her computer and mother, otherwise an antisocial shut-in. There aren't many more movies or television shows that I can reference to point out good or bad representations of women in tech because, frankly, it's still a man's world.
Misconceptions about how women fit in tech also play a part in the under respresentation of women in the industry. A woman is doing herself and her company a disservice by attempting to do a man's job. In media we see women pictured in power suits, stifling their emotions, drinking whiskey and smoking cigars to "fit in" with the men. Women offer unique skills and under no circumstance should downplay their identities. By empowering the inherent attributes of a woman, we diversify skills, teams, and products. And thus Tavi created Rookie Magazine, Michelle ipsy, and Tracy Tradesy. These are the types of women that should be present in media. I would take this opportunity to bash Keeping Up With The Kardashians, BUT Kim K did turn out a damn successful video game!
Regardless of the huge gender gap, women are playing a prominent role in technology- we just need to showcase their successes to younger generations. As James Brown put it, it's a man's world, but it would be nothing without a woman or a girl.


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REST automation
INFO endpoint
Library dependency list
Service list
Health endpoint
You may embed your UI application (HTML/CSS/JS bundle) or put the files in the local file system.
For example, to use the bundle in the /tmp/html folder.
java -jar rest-automation.jar -html file:/tmp/html


Faust syntax
This section describes the syntax of Faust. Figure fig-syntax gives an overview of the various concepts and where they are defined in this section.
As we will see, definitions and expressions have a central role.
Faust program
A Faust program is essentially a list of statements. These statements can be declarations, imports, definitions and documentation tags, with optional C++ style (//... and /.../) comments.
A Simple Program
Here is a short Faust program that implements of a simple noise generator. It exhibits various kind of statements: two declarations, an import, a comment and a definition. We will see later on documentation statements (sec-documentation).
declare name "noise";
declare copyright "(c)GRAME 2006";
import("music.lib");
// noise level controlled by a slider
process = noise * vslider("volume", 0, 0, 1, 0.1);
The keyword process is the equivalent of main in C/C++. Any Faust program, to be valid, must at least define process.
Statements
The statements of a Faust program are of four kinds: metadata declarations, file imports, definitions and documentation. All statements but documentation end with a semicolon (;).
Declarations
Meta-data declarations (for example declare name "noise";) are optional and typically used to document a Faust project.
Contrary to regular comments, these declarations will appear in the C++ code generated by the compiler. A good practice is to start a Faust program with some standard declarations:
declare name "MyProgram";
declare author "MySelf";
declare copyright "MyCompany";
declare version "1.00";
declare license "BSD";
Imports
File imports allow to import definitions from other source files.
For example import("maths.lib"); imports the definitions of the maths.lib library, a set of additional mathematical functions provided as foreign functions.
Documentation
Documentation statements are optional and typically used to control the generation of the mathematical documentation of a Faust program. This documentation system is detailed chapter \ref{chapter-mdoc}. In this section we will essentially describe the documentation statements syntax.
A documentation statement starts with an opening <mdoc> tag and ends with a closing </mdoc> tag. Free text content, typically in LaTeX format, can be placed in between these two tags.
Moreover, optional sub-tags can be inserted in the text content itself to require the generation, at the insertion point, of mathematical equations, graphical block-diagrams, Faust source code listing and explanation notice.
The generation of the mathematical equations of a Faust expression can be requested by placing this expression between an opening <equation> and a closing </equation> tag. The expression is evaluated within the lexical context of the Faust program.
Similarly, the generation of the graphical block-diagram of a Faust expression can be requested by placing this expression between an opening <diagram> and a closing </diagram> tag. The expression is evaluated within the lexical context of the Faust program.
The <metadata> tags allow to reference Faust metadatas (cf. declarations), calling the corresponding keyword.
The <notice /> empty-element tag is used to generate the conventions used in the mathematical equations.
The <listing /> empty-element tag is used to generate the listing of the Faust program. Its three attributes mdoctags, dependencies and distributed enable or disable respectively <mdoc> tags, other files dependencies and distribution of interleaved faust code between
Definitions
A definition associates an identifier with an expression it stands for.
Definitions are essentially a convenient shortcut avoiding to type long expressions. During compilation, more precisely during the evaluation stage, identifiers are replaced by their definitions. It is therefore always equivalent to use an identifier or directly its definition. Please note that multiple definitions of a same identifier are not allowed, unless it is a pattern matching based definition.
Simple Definitions
The syntax of a simple definition is:
For example here is the definition of random, a simple pseudo-random number generator:
random = +(12345) ~ *(1103515245);
Function Definitions
Definitions with formal parameters correspond to functions definitions.
For example the definition of linear2db, a function that converts linear values to decibels, is :
linear2db(x) = 20*log10(x);
Please note that this notation is only a convenient alternative to the direct use of lambda-abstractions (also called anonymous functions). The following is an equivalent definition of linear2db using a lambda-abstraction:
linear2db = \(x).(20*log10(x));
Definitions with pattern matching
Moreover, formal parameters can also be full expressions representing patterns.
This powerful mechanism allows to algorithmically create and manipulate block diagrams expressions. Let's say that you want to describe a function to duplicate an expression several times in parallel:
duplicate(1,x) = x;
duplicate(n,x) = x, duplicate(n-1,x);
Please note that this last definition is a convenient alternative to the more verbose :
duplicate = case {
(1,x) => x;
(n,x) => duplicate(n-1,x);
};
Here is another example to count the number of elements of a list. Please note that we simulate lists using parallel composition : (1,2,3,5,7,11). The main limitation of this approach is that there is no empty list. Moreover lists of only one element are represented by this element :
count((x,xs)) = 1+count(xs);
count(x) = 1;
If we now write count(duplicate(10,666)) the expression will be evaluated to 10.
Please note that the order of pattern matching rules matters. The more specific rules must precede the more general rules. When this order is not respected, as in :
count(x) = 1;
count((x,xs)) = 1+count(xs);
the first rule will always match and the second rule will never be called.
Please note that number arguments in pattern matching rules are typically constant numerical expressions, so can be the result of more complex expressions involving computations done at compile-time.
Variants
Some statements (imports, definitions) can be preceded by a variantlist, composed of variants which can be singleprecision, doubleprecision, quadprecision or fixedpointprecision This allows some imports and definitions to be effective only for a (or several) specific float precision option in the compiler (that is either -single, -double, -quad or -fx respectively). A typical use-case is the definition of floating point constants in the maths.lib library with the following lines:
singleprecision MAX = 3.402823466e+38;
doubleprecision MAX = 1.7976931348623158e+308;
Expressions
Despite its textual syntax, Faust is conceptually a block-diagram language. Faust expressions represent DSP block-diagrams and are assembled from primitive ones using various composition operations. More traditional numerical expressions in infix notation are also possible. Additionally Faust provides time based expressions, like delays, expressions related to lexical environments, expressions to interface with foreign function and lambda expressions.
Constant Numerical Expressions
Some language primitives (like rdtable, rwtable, hslider etc.) take constant numbers as some of their parameters. This is the case also for expressions using pattern matching techniques. Those numbers can be directly given in the code, but can also be computed by more complex expressions which have to produce numbers at compile time. We will refer to them as constant numerical expressions in the documentation.
Diagram Expressions
Diagram expressions are assembled from primitive ones using either binary composition operations or high level iterative constructions.
Diagram composition operations
Five binary composition operations are available to combine block-diagrams: recursion, parallel, sequential, split and merge composition. One can think of each of these composition operations as a particular way to connect two block diagrams.
To describe precisely how these connections are done, we have to introduce some notation. The number of inputs and outputs of a bloc-diagram are notated and . The inputs and outputs themselves are respectively notated : , , , and , , , etc..
For each composition operation between two block-diagrams and we will describe the connections that are created and the constraints on their relative numbers of inputs and outputs.
The priority and associativity of this five operations are given table table-composition. Please note that a higher priority value means a higher priority in the evaluation order. There is a companion table infix-comparison-priority that gives the associativity of each numerical operator in infix expressions.
The parallel composition (A,B) (figure figure-par1) is probably the simplest one. It places the two block-diagrams one on top of the other, without connections. The inputs of the resulting block-diagram are the inputs of and . The outputs of the resulting block-diagram are the outputs of and .
Parallel composition is an associative operation : and are equivalents. When no parenthesis are used : A,B,C,D, Faust uses right associativity and therefore build internally the expression . This organization is important to know when using pattern matching techniques on parallel compositions.
The sequential composition (figure figure-seq1) expects: It connects each output of to the corresponding input of :
Sequential composition is an associative operation : and are equivalents. When no parenthesis are used, like in , Faust uses right associativity and therefore build internally the expression .
The split composition (figure figure-split1) operator is used to distribute the outputs of to the inputs of .
Each input of is connected to the output of :
The merge composition (figure figure-merge1) is the dual of the split composition. The number of outputs of must be a multiple of the number of inputs of : Each output of is connected to the input of : The incoming signals of an input of are summed together.
The recursive composition A~B (figure figure-rec1) is used to create cycles in the block-diagram in order to express recursive computations. It is the most complex operation in terms of connections.
To be applicable it requires that : Each input of is connected to the corresponding output of via an implicit 1-sample delay : and each output of is connected to the corresponding input of :
The inputs of the resulting block diagram are the remaining unconnected inputs of . The outputs are all the outputs of .
Inputs and outputs of an expression
These two constructions can be used to know at compile time the number of inputs and outputs of any Faust expression.
They are useful to define high order functions and build algorithmically complex block-diagrams. Here is an example to automatically reverse the order of the outputs of an expression.
Xo(expr) = expr <: par(i,n,selector(n-i-1,n))
with { n=outputs(expr); };
And the inputs of an expression :
Xi(expr) = bus(n) <: par(i,n,selector(n-i-1,n)) : expr
with { n=inputs(expr); };
For example Xi(-) will reverse the order of the two inputs of the substraction.
Iterations
Iterations are analogous to for(...) loops and provide a convenient way to automate some complex block-diagram constructions.
The following example shows the usage of seq to create a 10-bands filter:
process = seq(i, 10,
vgroup("band %i",
bandfilter( 1000*(1+i) )
)
);
The number of iterations must be a constant expression.
Infix Notation
. For example if you want to multiply two numbers, let say 2 and 3, you can write directly 23 instead of the equivalent core-syntax expression 2,3:.
The infix notation is not limited to numbers or numerical expressions. Arbitrary expressions A and B can be used, provided that A,B has exactly two outputs. For example you can write /2. It is equivalent to ,2:/ which divides the incoming signal by 2.
Examples of equivalences are given table tab-infixrules.
| 2-3 | 2,3 : - | |
| 2*3 | 2,3 : * | |
| _@7 | _,7 : @ | |
| _/2 | _,2 : / | |
| A<B | A,B : < | |
In case of doubts on the meaning of an infix expression, for example _, it is useful to translate it to its core syntax equivalent, here ,_:, which is equivalent to *.
Built-in primitives that can be used in infix notation are called infix operators and are listed in this section. Please note that a more detailed description of these operators is available section primitives.
Comparison Operators
Comparison operators compare two signals and produce a signal that is 1 when the comparison is true and 0 when the comparison is false.
The priority and associativity of the comparison operators is given table infix-comparison-priority.
Math Operators
Math operators combine two signals and produce a resulting signal by applying a numerical operation on each sample.
The priority and associativity of the math operators is given table infix-math-priority.
Bitwise operators
Bitwise operators combine two signals and produce a resulting signal by applying a bitwise operation on each sample.
The priority and associativity of the bitwise operators is given table infix-bitwise-priority.
Delay operators
Delay operators combine two signals and produce a resulting signal by applying a bitwise operation on each sample.
The delay operator @ allows to delay left handside expression by the amount defined by the right handside expression. The unary operator "'" delays the left handside expression by one sample.
The priority and associativity of the delay operators is given table infix-delay-priority.
| Syntax | Pri. | Assoc. | Description |
| expression\ @\ expression | 9 | left | variable delay |
| expression \' | 10 | left | one-sample delay |
Prefix Notation
Beside infix notation, it is also possible to use prefix notation. The prefix notation is the usual mathematical notation for functions , but extended to infix operators.
| *(2,3) | 2,3 : * | |
| @(_,7) | _,7 : @ | |
| /(_,2) | _,2 : / | |
| <(A,B) | A,B : < | |
It consists in first having the operator, for example /, followed by its arguments between parentheses: /(2,3) (see table tab-prefixrules).
Partial Application
The partial application notation is a variant of prefix notation in which not all arguments are given. For instance /(2) (divide by 2), ^(3) (rise to the cube) and @(512) (delay by 512 samples) are examples of partial applications where only one argument is given. The result of a partial application is a function that "waits" for the remaining arguments.
When doing partial application with an infix operator, it is important to note that the supplied argument is not the first argument, but always the second one, as summarized table tab-partialrules.
| +(C) | _,C:* | |
| -(C) | _,C:- | |
| <(C) | _,C:< | |
| /(C) | _,C:/ | |
For commutative operations that doesn't matter. But for non-commutative ones, it is more ``natural'' to fix the second argument. We use divide by 2 (/(2)) or rise to the cube (^(3)) more often than the other way around.
Please note that this rule only applies to infix operators, not other primitives or functions. If you partially apply a regular function to a single argument, it will correspond to the first parameter.
Time expressions
Time expressions are used to express delays. The notation X@10 represent the signal X delayed by 10 samples. The notation "X'" represent the signal X delayed by one sample and is therefore equivalent to X@1.
The delay (automatically promoted to int) don't have to be fixed, but it must be positive and bounded. The values of a slider are perfectly acceptable as in the following example:
process = _ @ hslider("delay",0, 0, 100, 1);
Environment expressions
Faust is a lexically scoped language. The meaning of a Faust expression is determined by its context of definition (its lexical environment) and not by its context of use.
To keep their original meaning, Faust expressions are bounded to their lexical environment in structures called closures. The following constructions allow to explicitly create and access such environments. Moreover they provide powerful means to reuse existing code and promote modular design.
With
The with construction allows to specify a local environment, a private list of definition that will be used to evaluate the left hand expression
In the following example :
pink = f : + ~ g with {
f(x) = 0.04957526213389*x
- 0.06305581334498*x'
+ 0.01483220320740*x'';
g(x) = 1.80116083982126*x
- 0.80257737639225*x';
};
the definitions of f(x) and g(x) are local to f : + ~ g.
Please note that with is left associative and has the lowest priority:
- f : + ~ g with {...} is equivalent to (f : + ~ g) with {...}.
- f : + ~ g with {...} with {...} is equivalent to ((f : + ~ g) with {...}) with {...}.
Letrec
The letrec construction is somehow similar to with, but for difference equations instead of regular definitions. It allows to easily express groups of mutually recursive signals, for example: x(t)&=&y(t-1)+10; y(t)&=&x(t-1)-1; as E letrec { 'x = y+10; 'y = x-1; }
The syntax is defined by the following rules:
Please remarks the special notation 'x=y+10 instead of x=y'+10. It makes syntactically impossible to write non-sensical equations like x=x+1.
Here is a more involved example. Let say we want to define an envelop generator with an attack time, a release time and a gate signal. A possible definition is the following:
ar(a,r,g) = v
letrec {
'n = (n+1) * (g<=g');
'v = max(0, v + (n<a)/a - (n>=a)/r) * (g<=g');
};
With the following semantics for and : n(t)&=&(n(t-1)+1) * (g(t) <= g(t-1)) v(t)&=& max(0, v(t-1) + (n(t-1)=a(t))/r(t)) * (g(t)<=g(t-1))
In order to factor some expressions common to several recursive definitions, we can use the clause where followed by one or more definitions. These definitions will only be visible to the recursive equations of the letrec, but not to the outside world, unlike the recursive definitions themselves.
For instance in the previous example we can factorize (g<=g) leading to the following expression:
ar(a,r,g) = v
letrec {
'n = (n+1) * c;
'v = max(0, v + (n<a)/a - (n>=a)/r) * c;
where
c = g<=g';
};
Please note that letrec is essentially syntactic sugar.
Here is an example of 'letrec':
x,y letrec {
x = defx;
y = defy;
z = defz;
where
f = deff;
g = defg;
};
and its translation as done internally by the compiler:
x,y with {
x = BODY : _,!,!;
y = BODY : !,_,!;
z = BODY : !,!,_;
BODY = \(x,y,z).((defx,defy,defz) with {f=deff; g=defg;}) ~ (_,_,_);
};
Environment
The environment construction allows to create an explicit environment. It is like a with, but without the left hand expression. It is a convenient way to group together related definitions, to isolate groups of definitions and to create a name space hierarchy.
In the following example an environment construction is used to group together some constant definitions :
constant = environment {
pi = 3.14159;
e = 2.718;
...
};
The . construction allows to access the definitions of an environment (see next paragraph).
Access
Definitions inside an environment can be accessed using the '.' construction.
For example constant.pi refers to the definition of pi in the above constant environment.
Please note that environment don't have to be named. We could have written directly environment{pi = 3.14159; e = 2.718; ... }.pi
Library
The library construct allows to create an environment by reading the definitions from a file.
For example library("miscfilter.lib") represents the environment obtained by reading the file "miscfilter.lib". It works like import("miscfilter.lib") but all the read definitions are stored in a new separate lexical environment. Individual definitions can be accessed as described in the previous paragraph. For example library("miscfilter.lib").lowpass denotes the function lowpass as defined in the file "miscfilter.lib".
To avoid name conflicts when importing libraries it is recommended to prefer library to import. So instead of :
import("miscfilter.lib");
...
...lowpass....
...
};
the following will ensure an absence of conflicts :
fl = library("miscfilter.lib");
...
...fl.lowpass....
...
};
Component
The component(...) construction allows to reuse a full Faust program as a simple expression.
For example component("freeverb.dsp") denotes the signal processor defined in file "freeverb.dsp".
Components can be used within expressions like in:
...component("karplus32.dsp"):component("freeverb.dsp")...
Please note that component("freeverb.dsp") is equivalent to library("freeverb.dsp").process.
Explicit substitution
Explicit substitution can be used to customize a component or any expression with a lexical environment by replacing some of its internal definitions, without having to modify it.
For example we can create a customized version of component("freeverb.dsp"), with a different definition of foo(x), by writing :
...component("freeverb.dsp")[foo(x) = ...;]...
};
Foreign expressions
Reference to external (foreign) C functions, variables and constants can be introduced using the foreign expressions mechanism.
Foreign function declaration
An external C function is declared by indicating its name and signature as well as the required include file. The file "maths.lib" of the Faust distribution contains several foreign function definitions, for example the inverse hyperbolic sine function asinh is defined as follows
asinh = ffunction(float asinhf|asinh|asinhl|asinfx(float), <math.h>, "");
The signature part of a foreign function, float asinhf|asinh|asinhl|asinfx(float) in our previous example, describes the prototype of the C function: its return type, function names and list of parameter types. Because the name of the foreign function can possibly depend on the floating point precision in use (float, double, quad and fixed-point), it is possible to give a different function name for each floating point precision using a signature with up to four function names.
In our example, the asinh function is called asinhf in single precision, asinh in double precision, asinhl in quad precision, and asinhfx in fixed-point precision. This is why the four names are provided in the signature.
Foreign functions generally expect a precise type: (int or float) for their parameters. Note that currently only numerical functions involving scalar parameters are allowed. No vectors, tables or data structures can be passed as parameters or returned. During the compilation if the type of an argument is not the same as the type of the parameter, it is automatically converted to the expected one.
Some foreign functions are polymorphic and can accept either int or float arguments. In this case, the polymorphism can be indicated by using the type any instead or int or float. Here is as an example the C function sizeof that returns the size of its argument:
sizeof = ffunction(int sizeof(any), "","");
Foreign functions with input parameters are considered pure math functions. They are therefore considered free of side effects and called only when their parameters change (that is at the rate of the fastest parameter).
Exceptions are functions with no input parameters. A typical example is the C rand() function. In this case the compiler generates code to call the function at sample rate.
Foreign variables and constants
External variables and constants can also be declared with a similar syntax. In the same "maths.lib" file, the definition of the sampling rate constant SR and the definition of the block-size variable BS can be found :
SR = min(192000.0,
max(1.0,
fconstant(int fSamplingFreq, <math.h>)));
BS = fvariable(int count, <math.h>);
Foreign constants are not supposed to vary. Therefore expressions involving only foreign constants are only computed once, during the initialization period.
Foreign variables are considered to vary at block speed. This means that expressions depending of external variables are computed every block.
Include file
In declaring foreign functions one has also to specify the include file. It allows the Faust compiler to add the corresponding #include... in the generated code.
Library file
In declaring foreign functions one can possibly specify the library where the actual code is located. It allows the Faust compiler to (possibly) automatically link the library. Note that this feature is only used with the LLVM backend in 'libfaust' dynamic library model.
Applications and Abstractions
Abstractions and applications are fundamental programming constructions directly inspired by the Lambda-Calculus. These constructions provide powerful ways to describe and transform block-diagrams algorithmically.
Abstractions
Abstractions correspond to functions definitions and allow to generalize a block-diagram by making variable some of its parts.
Let's say you want to transform a stereo reverb, freeverb for instance, into a mono effect. You can write the following expression:
_ <: freeverb :> _
The incoming mono signal is splitted to feed the two input channels of the reverb, while the two output channels of the reverb are mixed together to produce the resulting mono output.
Imagine now that you are interested in transforming other stereo effects. It can be interesting to generalize this principle by making freeverb a variable:
\(freeverb).(_ <: freeverb :> _)
The resulting abstraction can then be applied to transform other effects. Note that if freeverb is a perfectly valid variable name, a more neutral name would probably be easier to read like:
\(fx).(_ <: fx :> _)
Moreover it could be convenient to give a name to this abstraction:
mono = \(fx).(_ <: fx :> _);
Or even use a more traditional, but equivalent, notation:
mono(fx) = _ <: fx :> _;
Applications
Applications correspond to function calls and allow to replace the variable parts of an abstraction with the specified arguments.
For example you can apply the previous abstraction to transform your stereo harmonizer:
mono(harmonizer)
The compiler will start by replacing mono by its definition:
\(fx).(_ <: fx :> _)(harmonizer)
Whenever the Faust compiler find an application of an abstraction it replaces
(_ <: harmonizer :> _)
Pattern Matching
Pattern matching rules provide an effective way to analyze and transform block-diagrams algorithmically.
For example case{ (x:y) => y:x; (x) => x; } contains two rules. The first one will match a sequential expression and invert the two part. The second one will match all remaining expressions and leave it untouched. Therefore the application:
case{(x:y) => y:x; (x) => x;}(freeverb:harmonizer)
will produce:
(harmonizer:freeverb)
Please note that patterns are evaluated before the pattern matching operation. Therefore only variables that appear free in the pattern are binding variables during pattern matching.
Primitives
The primitive signal processing operations represent the built-in functionalities of Faust, that is the atomic operations on signals provided by the language. All these primitives denote signal processors, functions transforming input signals into output signals.
Numbers
Faust considers two types of numbers: integers and floats. Integers are implemented as signed 32-bits integers, and floats are implemented either with a simple, double or extended precision depending of the compiler options. Floats are available in decimal or scientific notation.
Like any other Faust expression, numbers are signal processors. For example the number is a signal processor of type that transforms an empty tuple of signals into a 1-tuple of signals such that .
Operations on integer numbers follow the standard C semantic for +, -, * operations and can possibly overflow if the result cannot be represented as a 32-bits integer. The / operation is treated separately and cast both of its arguments to floats before doing the division, and thus the result takes the float type.
Route Primitive
The route primitive facilitates the routing of signals in Faust. It has the following syntax:
route(A,B,a,b,c,d,...)
route(A,B,(a,b),(c,d),...)
where:
- A is the number of input signals, as an integer constant numerical expression, automatically promoted to int
- B is the number of output signals, as an integer constant numerical expression, automatically promoted to int
- a,b / (a,b) is an input/output pair, as integers constant numerical expressions, automatically promoted to int
Inputs are numbered from 1 to A and outputs are numbered from 1 to B. There can be any number of input/output pairs after the declaration of A and B.
For example, crossing two signals can be carried out with:
process = route(2,2,1,2,2,1);
In that case, route has 2 inputs and 2 outputs. The first input (1) is connected to the second output (2) and the second input (2) is connected to the first output (1).
Note that parenthesis can be optionally used to define a pair, so the previous example can also be written as:
process = route(2,2,(1,2),(2,1));
More complex expressions can be written using algorithmic constructions, like the following one to cross N signals:
// cross 10 signals:
// input 0 -> output 10,
// input 1 -> output 9,
// ...,
// input 9 -> output 0
N = 10;
r = route(N,N,par(i,N,(i+1,N-i)));
process = r;
Waveforms Primitive
A waveform is a fixed periodic signal defined by a list of samples as literal numbers. A waveform has two outputs. The first output is constant and indicates the size (number of samples) of the period. The second output is the periodic signal itself.
For example waveform {0,1,2,3} produces two outputs, the constant signal 4 and the periodic signal 0,1,2,3,0,1,2,3,0,1\ldots.
Please note that waveform works nicely with rdtable. Its first output, known at compile time, gives the size of the table, while the second signal gives the content of the table. Here is an example:
process = waveform {10,20,30,40,50,60,70}, %(7)~+(3) : rdtable;
Soundfile Primitive
The soundfile("label[url:{path1';'path2';'path3';}]", n)' primitive allows access to a list of externally defined sound resources, described as the list of their filename, or complete paths. The soundfile("label[url:path]", n) , or soundfile("label", n) (where label is used as the soundfile path) simplified syntax allows to use a single file. All sound resources are concatenated in a single data structure, and each item can be accessed and used independently.
A soundfile has:
- two inputs: the sound number (as a integer between 0 and 255, automatically promoted to int), and the read index in the sound (automatically promoted to int, which will access the last sample of the sound if the read index is greater than the sound length)
- two fixed outputs: the first one is the length in samples of the currently accessed sound, the second one is the nominal sample rate in Hz of the currently accessed sound
- n several more outputs for the sound channels themselves, as a integer constant numerical expression
If more outputs than the actual number of channels in the soundfile are used, the sound channels will be automatically duplicated up to the wanted number of outputs (so for instance if a stereo sound is used with four output channels, the same group of two channels will be duplicated).
If the soundfile cannot be loaded for whatever reason, a default sound with one channel, a length of 1024 frames and null outputs (with samples of value 0) will be used. Note also that soundfiles are entirely loaded in memory by the architecture file, so that the read index signal can access any sample.
Specialized architecture files are responsible to load the actual soundfile. The SoundUI C++ class located in the faust/gui/SoundUI.h file implements the void addSoundfile(label, url, sf_zone) method, which loads the actual soundfiles using the {\it libsndfile} library, or possibly specific audio file loading code (in the case of the JUCE framework for instance), and set up the sf_zone sound memory pointers.
Note that a special architecture file can perfectly decide to access and use sound resources created by another means (that is, not directly loaded from a soundfile). For instance a mapping between labels and sound resources defined in memory could be used, with some additional code in charge to actually setup all sound memory pointers when void addSoundfile(label, url, sf_zone) is called by the buidUserInterface mechanism.
C-equivalent primitives
Most Faust primitives are analogue to their C counterpart but adapted to signal processing. For example + is a function of type that transforms a pair of signals into a 1-tuple of signals such that . The function - has type and transforms a pair of signals into a 1-tuple of signals such that .
Please be aware that the unary - only exists in a limited form
The primitives may use the int type for their arguments, but will automatically use the float type when the actual computation requires it. For instance 1/2 using int type arguments will correctly result in 0.5 in float type. Logical and shift primitives use the int type.
| Syntax | Type | Description |
| integer number: | ||
| floating point number: | ||
| _ | identity function: | |
| ! | cut function: | |
| int | cast into an int signal: | |
| float | cast into an float signal: | |
| + | addition: | |
| - | subtraction: | |
| * | multiplication: | |
| power: | ||
| / | division: | |
| % | modulo: | |
| & | bitwise AND: | |
| | | bitwise OR: | |
| xor | bitwise XOR: | |
| << | arith. shift left: | |
| >> | arith. shift right: | |
| < | less than: | |
| <= | less or equal: | |
| > | greater than: | |
| >= | greater or equal: | |
| == | equal: | |
| != | different: |
math.h-equivalent primitives
Most of the C math.h functions are also built-in as primitives (the others are defined as external functions in file maths.lib). The primitives may use the int type for their arguments, but will automatically use the float type when the actual computation requires it.
| Syntax | Type | Description |
| acos | arc cosine: | |
| asin | arc sine: | |
| atan | arc tangent: | |
| atan2 | arc tangent: | |
| cos | cosine: | |
| sin | sine: | |
| tan | tangent: | |
| exp | base-e exponential: | |
| log | base-e logarithm: | |
| log10 | base-10 logarithm: | |
| pow | power: | |
| sqrt | square root: | |
| abs | absolute value (int): | |
| absolute value (float): | ||
| min | minimum: | |
| max | maximum: | |
| fmod | float modulo: | |
| remainder | float remainder: | |
| floor | largest int : | |
| ceil | smallest int : | |
| rint | closest int using the current rounding mode: | |
| round | nearest int value, regardless of the current rounding mode: |
Delay, Table, Selector primitives
The following primitives allow to define fixed delays, read-only and read-write tables and 2 or 3-ways selectors (see figure fig-delays).
| Syntax | Type | Description |
| mem | 1-sample delay: | |
| prefix | 1-sample delay: | |
| @ | fixed delay: | |
| rdtable | read-only table: | |
| rwtable | read-write table: | |
| select2 | select between 2 signals: | |
| select3 | select between 3 signals: |
The size input of rdtable and rwtable are integer constant numerical expressions automatically promoted to int, and the read and write indexes are also automatically promoted to int. The delay value is automatically promoted to int.
User Interface Elements
Faust user interface widgets allow an abstract description of the user interface from within the Faust code. This description is independent of any GUI toolkits. It is based on buttons, checkboxes, sliders, etc. that are grouped together vertically and horizontally using appropriate grouping schemes.
All these GUI elements produce signals. A button for example (see figure fig-button) produces a signal which is 1 when the button is pressed and 0 otherwise. These signals can be freely combined with other audio signals.
| Syntax | Example |
| button(str) | button("play") |
| checkbox(str) | checkbox("mute") |
| vslider(str,cur,min,max,step) | vslider("vol",50,0,100,1) |
| hslider(str,cur,min,max,step) | hslider("vol",0.5,0,1,0.01) |
| nentry(str,cur,min,max,step) | nentry("freq",440,0,8000,1) |
| vgroup(str,block-diagram) | vgroup("reverb", \ldots) |
| hgroup(str,block-diagram) | hgroup("mixer", \ldots) |
| tgroup(str,block-diagram) | tgroup("parametric", \ldots) |
| vbargraph(str,min,max) | vbargraph("input",0,100) |
| hbargraph(str,min,max) | hbargraph("signal",0,1.0) |
| attach | attach(x, vumeter(x)) |
All numerical parameters (like {\it cur}, {\it min}, {\it max}, {\it step}) are constant numerical expressions.
Labels
Every user interface widget has a label (a string) that identifies it and informs the user of its purpose. There are three important mechanisms associated with labels (and coded inside the string): variable parts, pathnames and metadata.
Labels can contain variable parts. These variable parts are indicated by the sign '%' followed by the name of a variable. During compilation each label is processed in order to replace the variable parts by the value of the variable. For example par(i,8,hslider("Voice %i", 0.9, 0, 1, 0.01)) creates 8 different sliders in parallel :
hslider("Voice 0", 0.9, 0, 1, 0.01),
hslider("Voice 1", 0.9, 0, 1, 0.01),
...
hslider("Voice 7", 0.9, 0, 1, 0.01).
while par(i,8,hslider("Voice", 0.9, 0, 1, 0.01)) would have created only one slider and duplicated its output 8 times.
The variable part can have an optional format digit. For example "Voice %2i" would indicate to use two digit when inserting the value of i in the string.
An escape mechanism is provided. If the sign % is followed by itself, it will be included in the resulting string. For example "feedback (%%)" will result in "feedback (%)".
The variable name can be enclosed in curly brackets to clearly separate it from the rest of the string, as in par(i,8,hslider("Voice %{i}", 0.9, 0, 1, 0.01)).
Thanks to horizontal, vertical and tabs groups, user interfaces have a hierarchical structure analog to a hierarchical file system. Each widget has an associated pathname obtained by concatenating the labels of all its surrounding groups with its own label.
In the following example:
hgroup("Foo",
...
vgroup("Faa",
...
hslider("volume",...)
...
)
...
)
the volume slider has pathname /h:Foo/v:Faa/volume.
In order to give more flexibility to the design of user interfaces, it is possible to explicitly specify the absolute or relative pathname of a widget directly in its label.
In our previous example the pathname of:
hslider("../volume",...)
would have been "/h:Foo/volume", while the pathname of:
hslider("t:Fii/volume",...)
would have been: "/h:Foo/v:Faa/t:Fii/volume".
The grammar for labels with pathnames is the following:
Widget labels can contain metadata enclosed in square brackets. These metadata associate a key with a value and are used to provide additional information to the architecture file. They are typically used to improve the look and feel of the user interface. The Faust code:
process = *(hslider("foo [key1: val 1][key2: val 2]",
0, 0, 1, 0.1));
will produce and the corresponding C++ code:
class mydsp : public dsp {
...
virtual void buildUserInterface(UI* interface) {
interface->openVerticalBox("m");
interface->declare(&fslider0, "key1", "val 1");
interface->declare(&fslider0, "key2", "val 2");
interface->addHorizontalSlider("foo",
&fslider0, 0.0f, 0.0f, 1.0f, 0.1f);
interface->closeBox();
}
...
};
All the metadata are removed from the label by the compiler and transformed in calls to the UI::declare() method. All these UI::declare() calls will always take place before the UI::AddSomething() call that creates the User Interface element. This allows the UI::AddSomething() method to make full use of the available metadata.
It is the role of the architecture file to decide what to do with these metadata. The jack-qt.cpp architecture file for example implements the following: - "...[style:knob]..." creates a rotating knob instead of a regular slider or nentry. - "...[style:led]..." in a bargraph's label creates a small LED instead of a full bargraph - "...[unit:dB]..." in a bargraph's label creates a more realistic bargraph with colors ranging from green to red depending of the level of the value - "...[unit:xx]..." in a widget postfixes the value displayed with xx - "...[tooltip:bla bla]..." add a tooltip to the widget - "...[osc:/address min max]..." Open Sound Control message alias
Moreover starting a label with a number option like in "[1]..." provides a convenient means to control the alphabetical order of the widgets.
Attach
The attach primitive takes two input signals and produce one output signal which is a copy of the first input. The role of attach is to force its second input signal to be compiled with the first one. From a mathematical point of view attach(x,y) is equivalent to 1x+0y, which is in turn equivalent to x, but it tells the compiler not to optimize-out y.
To illustrate this role let say that we want to develop a mixer application with a vumeter for each input signals. Such vumeters can be easily coded in Faust using an envelop detector connected to a bargraph. The problem is that these envelop signals have no role in the output signals. Using attach(x,vumeter(x)) one can tell the compiler that when x is compiled vumeter(x) should also be compiled.


S
mart
C
ooker
What You Want To Eat
Veg Biryaani
Maggi
Daal
Select Date
Select Time
How many servings do you need?
One
Two
More Than Two


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| abstract string | Name [get] |
| |
| abstract double | CostPrice [get] |
| |
| virtual double | Price [get] |
| | The price of the ingredient that is charged to customers. More...
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| |
| abstract string | Description [get] |
| | Describe the ingredient. More...
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| |
| bool | Baked [get, private set] |
| |
Definition at line 7 of file Ingredient.cs.
◆ Bake()
| void PizzazzLibrary.Ingredients.Interfaces.Ingredient.Bake |
( |
| ) |
|
|
package |
◆ ToString()
| override string PizzazzLibrary.Ingredients.Interfaces.Ingredient.ToString |
( |
| ) |
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◆ Baked
| bool PizzazzLibrary.Ingredients.Interfaces.Ingredient.Baked |
|
getprivate set |
◆ CostPrice
| abstract double PizzazzLibrary.Ingredients.Interfaces.Ingredient.CostPrice |
|
get |
◆ Description
| abstract string PizzazzLibrary.Ingredients.Interfaces.Ingredient.Description |
|
get |
◆ Name
| abstract string PizzazzLibrary.Ingredients.Interfaces.Ingredient.Name |
|
get |
◆ Price
| virtual double PizzazzLibrary.Ingredients.Interfaces.Ingredient.Price |
|
get |
The price of the ingredient that is charged to customers.
Definition at line 16 of file Ingredient.cs.
The documentation for this class was generated from the following file:


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|
MeterLogger
|
#include <mqtt.h>
Data Fields | |
| struct espconn * | pCon |
| uint8_t | security |
| uint8_t * | host |
| uint32_t | port |
| ip_addr_t | ip |
| mqtt_state_t | mqtt_state |
| mqtt_connect_info_t | connect_info |
| MqttCallback | connectedCb |
| MqttCallback | disconnectedCb |
| MqttCallback | publishedCb |
| MqttCallback | timeoutCb |
| MqttDataCallback | dataCb |
| ETSTimer | mqttTimer |
| uint32_t | keepAliveTick |
| uint32_t | reconnectTick |
| uint32_t | sendTimeout |
| tConnState | connState |
| QUEUE | msgQueue |
| void * | user_data |
| mqtt_connect_info_t MQTT_Client::connect_info |
Definition at line 100 of file mqtt.h.
Referenced by mqtt_client_delete(), MQTT_InitClient(), and MQTT_InitLWT().
| MqttCallback MQTT_Client::connectedCb |
Definition at line 101 of file mqtt.h.
Referenced by mqtt_client_delete(), MQTT_OnConnected(), and mqtt_tcpclient_recv().
| tConnState MQTT_Client::connState |
Definition at line 110 of file mqtt.h.
Referenced by mqtt_client_delete(), MQTT_Connect(), MQTT_DeleteClient(), MQTT_Disconnect(), mqtt_dns_found(), mqtt_send_keepalive(), MQTT_Task(), mqtt_tcpclient_connect_cb(), mqtt_tcpclient_discon_cb(), mqtt_tcpclient_recon_cb(), mqtt_tcpclient_recv(), mqtt_tcpclient_sent_cb(), and mqtt_timer().
| MqttDataCallback MQTT_Client::dataCb |
Definition at line 105 of file mqtt.h.
Referenced by deliver_publish(), mqtt_client_delete(), and MQTT_OnData().
| MqttCallback MQTT_Client::disconnectedCb |
Definition at line 102 of file mqtt.h.
Referenced by mqtt_client_delete(), MQTT_OnDisconnected(), and mqtt_tcpclient_discon_cb().
| uint8_t* MQTT_Client::host |
Definition at line 96 of file mqtt.h.
Referenced by mqtt_client_delete(), MQTT_Connect(), MQTT_InitConnection(), mqtt_send_keepalive(), MQTT_Task(), mqtt_tcpclient_connect_cb(), mqtt_tcpclient_recon_cb(), and mqtt_tcpclient_recv().
| ip_addr_t MQTT_Client::ip |
Definition at line 98 of file mqtt.h.
Referenced by MQTT_Connect(), and mqtt_dns_found().
| uint32_t MQTT_Client::keepAliveTick |
Definition at line 107 of file mqtt.h.
Referenced by MQTT_Connect(), mqtt_send_keepalive(), mqtt_tcpclient_recv(), mqtt_tcpclient_sent_cb(), and mqtt_timer().
| mqtt_state_t MQTT_Client::mqtt_state |
Definition at line 99 of file mqtt.h.
Referenced by mqtt_client_delete(), MQTT_InitClient(), MQTT_Ping(), MQTT_Publish(), mqtt_send_keepalive(), MQTT_Subscribe(), MQTT_Task(), mqtt_tcpclient_connect_cb(), mqtt_tcpclient_recv(), mqtt_tcpclient_sent_cb(), mqtt_timer(), and MQTT_UnSubscribe().
| ETSTimer MQTT_Client::mqttTimer |
Definition at line 106 of file mqtt.h.
Referenced by MQTT_Connect().
| QUEUE MQTT_Client::msgQueue |
Definition at line 111 of file mqtt.h.
Referenced by mqtt_client_delete(), MQTT_InitClient(), MQTT_Ping(), MQTT_Publish(), MQTT_Subscribe(), MQTT_Task(), mqtt_tcpclient_recv(), MQTT_UnSubscribe(), and wifi_changed_cb().
| struct espconn* MQTT_Client::pCon |
Definition at line 94 of file mqtt.h.
Referenced by mqtt_client_delete(), MQTT_Connect(), mqtt_dns_found(), mqtt_send_keepalive(), MQTT_Task(), mqtt_tcpclient_connect_cb(), mqtt_tcpclient_delete(), mqtt_tcpclient_recv(), and sample_timer_func().
| uint32_t MQTT_Client::port |
Definition at line 97 of file mqtt.h.
Referenced by MQTT_Connect(), MQTT_InitConnection(), mqtt_send_keepalive(), MQTT_Task(), mqtt_tcpclient_connect_cb(), mqtt_tcpclient_recon_cb(), and mqtt_tcpclient_recv().
| MqttCallback MQTT_Client::publishedCb |
Definition at line 103 of file mqtt.h.
Referenced by mqtt_client_delete(), MQTT_OnPublished(), and mqtt_tcpclient_sent_cb().
| uint32_t MQTT_Client::reconnectTick |
Definition at line 108 of file mqtt.h.
Referenced by MQTT_Connect(), and mqtt_timer().
| uint8_t MQTT_Client::security |
Definition at line 95 of file mqtt.h.
Referenced by MQTT_Connect(), mqtt_dns_found(), MQTT_InitConnection(), mqtt_send_keepalive(), MQTT_Task(), mqtt_tcpclient_connect_cb(), and mqtt_tcpclient_recv().
| uint32_t MQTT_Client::sendTimeout |
Definition at line 109 of file mqtt.h.
Referenced by mqtt_send_keepalive(), MQTT_Task(), mqtt_tcpclient_connect_cb(), mqtt_tcpclient_sent_cb(), and mqtt_timer().
| MqttCallback MQTT_Client::timeoutCb |
Definition at line 104 of file mqtt.h.
Referenced by mqtt_client_delete(), and MQTT_OnTimeout().
| void* MQTT_Client::user_data |
Definition at line 112 of file mqtt.h.
Referenced by mqtt_client_delete().