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Fixes (#43)

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This PR fixes the issues that have arisen with #42 and it needs to be merged before https://github.com/gohugoio/hugoThemes/pull/600
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Alexandros 2019-03-09 12:28:06 +02:00 committed by digitalcraftsman
parent 63e2524024
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config.toml
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@ -1,11 +1,11 @@
baseurl = "https://gohugo.io/"
ignoreFiles = ["content/posts/\\.*","content/portfolio/\\.*","content/product/\\.*","content/sketch/\\.*","content/en/\\.*","content/fr/\\.*"]
baseURL = "https://gohugo.io/"
title = "Hugo Themes"
author = "Steve Francia"
copyright = "Copyright © 2008–2019, Steve Francia and the Hugo Authors; all rights reserved."
paginate = 3
languageCode = "en"
DefaultContentLanguage = "en"
ignoreFiles = ["content/posts/\\.*","content/portfolio/\\.*","content/product/\\.*","content/sketch/\\.*","content/en/\\.*","content/fr/\\.*"]
[menu]
@ -15,3 +15,28 @@ ignoreFiles = ["content/posts/\\.*","content/portfolio/\\.*","content/product/\\
url = "about/"
weight = 10
[taxonomies]
category = "categories"
tag = "tags"
series = "series"
[privacy]
[privacy.vimeo]
disabled = false
simple = true
[privacy.twitter]
disabled = false
enableDNT = true
simple = true
disableInlineCSS = true
[privacy.instagram]
disabled = false
simple = true
[privacy.youtube]
disabled = false
privacyEnhanced = true

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content/post/creating-a-new-theme.fr.md
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content/post/goisforlovers.fr.md
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+++
categories = ["Go"]
date = "2014-04-02"
description = ""
featured = "pic02.jpg"
featuredalt = ""
featuredpath = "date"
linktitle = ""
slug = "Introduction aux modeles Hugo"
title = "Introduction aux modèles (Hu)go"
type = "posts"
author = "Hugo Auteurs"
+++
Hugo utilise l'excellente librairie [go][] [html/template][gohtmltemplate] pour
son moteur de modèles. c'est un moteur extrêmement léger qui offre un très petit
nombre de fonctions logiques. À notre expérience, c'est juste ce qu'il faut pour
créer un bon site web statique. Si vous avez déjà utilisé d'autre moteurs de
modèles pour différents langages ou frameworks, vous allez retrouver beaucoup de
similitudes avec les modèles go.
Ce document est une introduction sur l'utilisation de Go templates. La
[documentation go][gohtmltemplate] fourni plus de détails.
## Introduction aux modèles Go
Go templates fournit un langage de modèles très simple. Il adhère à la
conviction que les modèles ou les vues doivent avoir une logique des plus
élémentaires. L'une des conséquences de cette simplicité est que les modèles
seront plus rapides a être analysés.
Une caractéristique unique de Go templates est qu'il est conscient du contenu.
Les variables et le contenu va être nettoyé suivant le contexte d'utilisation.
Plus de détails sont disponibles dans la [documentation go][gohtmltemplate].
## Syntaxe basique
Les modèles en langage Go sont des fichiers HTML avec l'ajout de variables et
fonctions.
**Les variables Go et les fonctions sont accessibles avec {{ }}**
Accès à une variable prédéfinie "foo":
{{ foo }}
**Les paramètres sont séparés par des espaces**
Appel de la fonction add avec 1 et 2 en argument**
{{ add 1 2 }}
**Les méthodes et les champs sont accessibles par un point**
Accès au paramètre de la page "bar"
{{ .Params.bar }}
**Les parenthèses peuvent être utilisées pour grouper des éléments ensemble**
```
{{ if or (isset .Params "alt") (isset .Params "caption") }} Caption {{ end }}
```
## Variables
Chaque modèle go a une structure (objet) mis à sa disposition. Avec Hugo, à
chaque modèle est passé soit une page, soit une structure de nœud, suivant quel
type de page vous rendez. Plus de détails sont disponibles sur la page des
[variables](/layout/variables).
Une variable est accessible par son nom.
<title>{{ .Title }}</title>
Les variables peuvent également être définies et appelées.
{{ $address := "123 Main St."}}
{{ $address }}
## Functions
Go templace est livré avec quelques fonctions qui fournissent des
fonctionnalités basiques. Le système de Go template fourni également un
mécanisme permettant aux applications d'étendre les fonctions disponible. Les
[fonctions de modèle Hugo](/layout/functions) fourni quelques fonctionnalités
supplémentaires que nous espérons qu'elles seront utiles pour vos sites web.
Les functions sont appelées en utilisant leur nom suivi par les paramètres
requis séparés par des espaces. Des fonctions de modèles ne peuvent pas être
ajoutées sans recompiler Hugo.
**Exemple:**
{{ add 1 2 }}
## Inclusions
Lorsque vous incluez un autre modèle, vous devez y passer les données qu'il sera
en mesure d'accèder. Pour passer le contexte actuel, pensez à ajouter un point.
La localisation du modèle sera toujours à partir du répertoire /layout/ dans
Hugo.
**Exemple:**
{{ template "chrome/header.html" . }}
## Logique
Go templates fourni les itérations et la logique conditionnèle des plus basique.
### Itération
Comme en go, les modèles go utilisent fortement *range* pour itérer dans une
map, un array ou un slice. Les exemples suivant montre différentes façons
d'utiliser *range*
**Exemple 1: En utilisant le context**
{{ range array }}
{{ . }}
{{ end }}
**Exemple 2: En déclarant un nom de variable**
{{range $element := array}}
{{ $element }}
{{ end }}
**Exemple 2: En déclarant un nom de varialbe pour la clé et la valeur**
{{range $index, $element := array}}
{{ $index }}
{{ $element }}
{{ end }}
### Conditions
*If*, *else*, *with*, *or*, *&*, *and* fournissent la base pour la logique
conditionnelle avec Go templates. Comme *range*, chaque déclaration est fermé
avec `end`.
Go templates considère les valeurs suivante comme *false* :
* false
* 0
* tout array, slice, map ou chaine d'une longueur de zéro
**Exemple 1: If**
{{ if isset .Params "title" }}<h4>{{ index .Params "title" }}</h4>{{ end }}
**Exemple 2: If -> Else**
{{ if isset .Params "alt" }}
{{ index .Params "alt" }}
{{else}}
{{ index .Params "caption" }}
{{ end }}
**Exemple 3: And & Or**
```
{{ if and (or (isset .Params "title") (isset .Params "caption"))
(isset .Params "attr")}}
```
**Exemple 4: With**
Une manière alternative d'écrire un "if" et de référencer cette même valeur est
d'utiliser "with". Cela permet de remplacer le contexte `.` par cet valeur et
saute le bloc si la variable est absente.
Le premier exemple peut être simplifié à ceci :
{{ with .Params.title }}<h4>{{ . }}</h4>{{ end }}
**Exemple 5: If -> Else If**
{{ if isset .Params "alt" }}
{{ index .Params "alt" }}
{{ else if isset .Params "caption" }}
{{ index .Params "caption" }}
{{ end }}
## *Pipes*
L'un des composants le plus puissant de Go templates est la capacité d'empiler
les action l'une après l'autre. Cela est fait en utilisant les *pipes*.
Empruntés aux *pipes* unix, le concept est simple. Chaque sortie de *pipeline*
devient l'entrée du *pipe* suivant.
À cause de la syntaxe très simple de Go templates, le *pipe* est essentiel pour
être capable d'enchainer les appels de fonctions. Une limitation des *pipes*
est qu'il ne peuvent fonctionner seulement avec une seule valeur et cette valeur
devient le dernier paramètre du prochain *pipeline*.
Quelques exemples simple devrait vous aider à comprendre comment utiliser les
*pipes*.
**Exemple 1 :**
{{ if eq 1 1 }} Same {{ end }}
est identique à
{{ eq 1 1 | if }} Same {{ end }}
Il semble étrange de placer le *if* à la fin, mais il fournit une bonne
illustration de la façon d'utiliser les tuyaux.
**Exemple 2 :**
{{ index .Params "disqus_url" | html }}
Accès au paramètre de page nommé "disqus_url" et échappement du HTML
**Exemple 3 :**
```
{{ if or (or (isset .Params "title") (isset .Params "caption"))
(isset .Params "attr")}}
Stuff Here
{{ end }}
```
Peut être réécrit en
```
{{ isset .Params "caption" | or isset .Params "title" |
or isset .Params "attr" | if }}
Stuff Here
{{ end }}
```
## Contexte (alias. le point)
Le concept le plus facilement négligé pour comprendre les modèles go est que
{{ . }} fait toujours référence au contexte actuel. Dans le plus haut niveau de
votre modèle, ce sera l'ensemble des données mis à votre disposition. Dans une
itération, ce sera la valeur de l'élément actuel. Enfin, dans une boucle, le
contexte change. . ne fera plus référence aux données disponibles dans la page
entière. Si vous avez besoin y d'accèder depuis l'intérieur d'une boucle, il est
judicieux d'y définir comme variable au lieu de dépendre du contexte.
**Exemple:**
```
{{ $title := .Site.Title }}
{{ range .Params.tags }}
<li> <a href="{{ $baseurl }}/tags/{{ . | urlize }}">
{{ . }}</a> - {{ $title }} </li>
{{ end }}
```
Notez que, une fois que nous sommes entrés dans la boucle, la valeur de
{{ . }} a changée. Nous avons défini une variable en dehors de la boucle, afin
d'y avoir accès dans la boucle.
# Les Paramètres d'Hugo
Hugo fournit l'option de passer des valeurs au modèle depuis la configuration du
site, ou depuis les métadonnées de chaque partie du contenu. Vous pouvez définir
n'importe quelle valeur de n'importe quel type (supporté par votre section
liminaire / format de configuration) et les utiliser comme vous le souhaitez
dans votre modèle.
## Utiliser les paramètres de contenu (page)
Dans chaque partie du contenu, vous pouvez fournir des variables pour être
utilisées par le modèle. Cela se passe dans la
[section liminaire](/content/front-matter).
Un exemple de cela est utilisé par ce site de documentation. La plupart des
pages bénéficient de la présentation de la table des matières. Quelques fois,
la table des matières n'a pas beaucoup de sens. Nous avons défini une variable
dans notre section liminaire de quelques pages pour désactiver la table des
matières.
Ceci est un exemple de section liminaire :
```
---
title: "Permalinks"
date: "2013-11-18"
aliases:
- "/doc/permalinks/"
groups: ["extras"]
groups_weight: 30
notoc: true
---
```
Ceci est le code correspondant dans le modèle :
{{ if not .Params.notoc }}
<div id="toc" class="well col-md-4 col-sm-6">
{{ .TableOfContents }}
</div>
{{ end }}
## Utiliser les paramètres de site (config)
Dans votre configuration de plus haut niveau (ex `config.yaml`), vous pouvez
définir des paramètres de site, dont les valeurs vous seront accessibles.
Pour les instances, vous pourriez délarer :
```yaml
params:
CopyrightHTML: "Copyright &#xA9; 2013 John Doe. All Rights Reserved."
TwitterUser: "spf13"
SidebarRecentLimit: 5
```
Avec un pied de page, vous devriez déclarer un `<footer>` qui est affiché
seulement si le paramètre `CopyrightHTML` est déclaré, et si il l'est, vous
devriez le déclarer comme HTML-safe, afin d'éviter d'échapper les entités HTML.
Cela vous permettra de le modifier facilement dans votre configuration au lieu
de le chercher dans votre modèle.
```
{{if .Site.Params.CopyrightHTML}}<footer>
<div class="text-center">{{.Site.Params.CopyrightHTML | safeHtml}}</div>
</footer>{{end}}
```
Une alternative au "if" et d'appeler la même valeur est d'utiliser "with". Cela
modifiera le contexte et passera le bloc si la variable est absente :
```
{{with .Site.Params.TwitterUser}}<span class="twitter">
<a href="https://twitter.com/{{.}}" rel="author">
<img src="/images/twitter.png" width="48" height="48" title="Twitter: {{.}}"
alt="Twitter"></a>
</span>{{end}}
```
Enfin, si vous souhaitez extraire des "constantes magiques" de vos mises en
page, vous pouvez le faire comme dans l'exemple suivant :
```
<nav class="recent">
<h1>Recent Posts</h1>
<ul>{{range first .Site.Params.SidebarRecentLimit .Site.Recent}}
<li><a href="{{.RelPermalink}}">{{.Title}}</a></li>
{{end}}</ul>
</nav>
```
[go]: <http://golang.org/>
[gohtmltemplate]: <http://golang.org/pkg/html/template/>

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categories = ["Hugo"]
date = "2014-04-02"
description = ""
featured = "pic03.jpg"
featuredalt = "Pic 3"
featuredpath = "date"
linktitle = ""
slug = "Debuter avec Hugo"
title = "Débuter avec Hugo"
type = "post"
author = "Hugo Auteurs"
+++
## Étape 1. Installer Hugo
Allez sur la page de téléchargements de
[hugo](https://github.com/spf13/hugo/releases) et téléchargez la version
appropriée à votre système d'exploitation et votre architecture.
Sauvegardez le fichier téléchargé à un endroit précis, afin de l'utiliser dans
l'étape suivante.
Des informations plus complètes sont disponibles sur la page
[installing hugo](/overview/installing/)
<!--more-->
## Étape 2. Compilez la documentation
Hugo possède son propre site d'exemple qui se trouve être également le site que
vous lisez actuellement.
Suivez les instructions suivante :
1. Clonez le [dépôt de hugo](http://github.com/spf13/hugo)
2. Allez dans ce dépôt
3. Lancez Hugo en mode serveur et compilez la documentation
4. Ouvrez votre navigateur sur http://localhost:1313
Voici les commandes génériques correspondantes :
git clone https://github.com/spf13/hugo
cd hugo
/chemin/ou/vous/avez/installe/hugo server --source=./docs
> 29 pages created
> 0 tags index created
> in 27 ms
> Web Server is available at http://localhost:1313
> Press ctrl+c to stop
Lorsque vous avez cela, continuez le reste de ce guide sur votre version locale.
## Étape 3. Changer le site de documentation
Arrêtez le processus de Hugo en pressant ctrl+c.
Maintenant, nous allons relancer hugo, mais cette fois avec Hugo en mode de
surveillance.
/chemin/vers/hugo/de/l-etape/1/hugo server --source=./docs --watch
> 29 pages created
> 0 tags index created
> in 27 ms
> Web Server is available at http://localhost:1313
> Watching for changes in /Users/spf13/Code/hugo/docs/content
> Press ctrl+c to stop
Ouvrez votre [éditeur favori](https://vim.spf13.com) et changer l'une des
sources des pages de contenu.
Open your [favorite editor](http://vim.spf13.com) and change one of the source
content pages. Que diriez-vous de modifier ce fichier pour *résoudre une faute
de typo*.
Les fichiers de contenu peuvent être trouvés dans `docs/content/`. Sauf
indication contraire, les fichiers sont situés au même emplacement relatif que
l'URL, dans notre cas `docs/content/overview/quickstart.md`.
Modifiez et sauvegardez ce fichier. Notez ce qu'il se passe dans le terminal.
> Change detected, rebuilding site
> 29 pages created
> 0 tags index created
> in 26 ms
Rechargez la page dans votre navigateur et voyez que le problème de typo est
maintenant résolu.
Notez à quel point cela a été rapide. Essayez de recharger le site avant qu'il
soit fini de compiler.
Notice how quick that was. Try to refresh the site before it's finished
building. Je paris que vous n'y arrivez pas.
Le fait d'avoir des réactions presque instantanées vous permet d'avoir votre
créativité fluide sans avoir à attendre de longues compilations.
## Step 4. Amusez-vous
Le meilleur moyen d'apprendre quelque chose est de s'amuser avec.

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categories = ["Hugo", "Jekyll"]
date = "2014-03-10"
description = ""
featured = ""
featuredalt = ""
featuredpath = ""
linktitle = ""
slug = "Migrer vers Hugo depuis Jekyll"
title = "Migrer vers Hugo depuis Jekyll"
type = "posts"
author = "Hugo Auteurs"
+++
## Déplacez le contenu statique vers `static`
Jekyll a une règle comme quoi tout répertoire qui ne commence pas par `_` sera
copié tel-quel dans le répertoire `_site`. Hugo garde tout le contenu statique
dans le répertoire `static`. Vous devez donc déplacer tout ce type de contenu
là-dedans. Avec Jekylll, l'arborescence ressemblant à ceci :
▾ <root>/
▾ images/
logo.png
<!--more-->
doit devenir
▾ <root>/
▾ static/
▾ images/
logo.png
En outre, vous allez devoir déplacer tous les fichiers présents à la racine vers
le répertoire `static`.
## Créez votre configuration Hugo
Hugo peut lire votre fichier de configuration au format JSON, YAML et TOML. Hugo
supporte également les paramètres de configuration. Plus d'informations sur la
[documentation de configuration Hugo](/overview/configuration/)
## Définiez votre répertoire de publication sur `_site`
La valeur par défaut pour Jekyll est d'utiliser le répertoire `_site` pour
publier le contenu. Pour Hugo, le répertoire de publication est `public`. Si,
comme moi, vous avez [lié `_site` vers un sous-module git sur la branche
`gh-pages`](http://blog.blindgaenger.net/generate_github_pages_in_a_submodule.ht
ml), vous allez vouloir avoir quelques alternatives :
1. Changez votre lien du sous-module `gh-pages` pour pointer sur public au lieu
de `_site` (recommendé).
git submodule deinit _site
git rm _site
git submodule add -b gh-pages
git@github.com:your-username/your-repo.git public
2. Ou modifiez la configuration de Hugo pour utiliser le répertoire `_site` au
lieu de `public`.
{
..
"publishdir": "_site",
..
}
## Convertir un thème Jekyll pour Hugo
C'est la majeure partie du travail. La documentation est votre ami.
Vous devriez vous référer à [la documentation des thèmes de Jekyll]
(http://jekyllrb.com/docs/templates/) si vous devez vous rafraîchir la mémoire
sur la façon dont vous avez construit votre blog et [les thèmes de Hugo]
(/layout/templates/) pour apprendre la manière de faire sur Hugo.
Pour vous donner un point de référence, la conversion du thème pour
[heyitsalex.net](http://heyitsalex.net/) ne m'a pris que quelques heures.
## Convertir les extensions Jekyll vers des shortcodes Hugo
Jekyll support les [extensions](http://jekyllrb.com/docs/plugins/); Hugo lui a
les [shortcodes](/doc/shortcodes/). C'est assez banal les porter.
### Implémentation
Comme exemple, j'utilise une extension pour avoir un [`image_tag`](https://githu
b.com/alexandre-normand/alexandre-normand/blob/74bb12036a71334fdb7dba84e073382fc
06908ec/_plugins/image_tag.rb) presonnalisé pour générer les images avec une
légende sur Jekyll. J'ai vu que Hugo implémente un shortcode qui fait exactement
la même chose.
Extension Jekyll :
```
module Jekyll
class ImageTag < Liquid::Tag
@url = nil
@caption = nil
@class = nil
@link = nil
// Patterns
IMAGE_URL_WITH_CLASS_AND_CAPTION =
IMAGE_URL_WITH_CLASS_AND_CAPTION_AND_LINK =
/(\w+)(\s+)((https?:\/\/|\/)(\S+))(\s+)"(.*?)"(\s+)->
((https?:\/\/|\/)(\S+))(\s*)/i
IMAGE_URL_WITH_CAPTION = /((https?:\/\/|\/)(\S+))(\s+)"(.*?)"/i
IMAGE_URL_WITH_CLASS = /(\w+)(\s+)((https?:\/\/|\/)(\S+))/i
IMAGE_URL = /((https?:\/\/|\/)(\S+))/i
def initialize(tag_name, markup, tokens)
super
if markup =~ IMAGE_URL_WITH_CLASS_AND_CAPTION_AND_LINK
@class = $1
@url = $3
@caption = $7
@link = $9
elsif markup =~ IMAGE_URL_WITH_CLASS_AND_CAPTION
@class = $1
@url = $3
@caption = $7
elsif markup =~ IMAGE_URL_WITH_CAPTION
@url = $1
@caption = $5
elsif markup =~ IMAGE_URL_WITH_CLASS
@class = $1
@url = $3
elsif markup =~ IMAGE_URL
@url = $1
end
end
def render(context)
if @class
source = "<figure class='#{@class}'>"
else
source = "<figure>"
end
if @link
source += "<a href=\"#{@link}\">"
end
source += "<img src=\"#{@url}\">"
if @link
source += "</a>"
end
source += "<figcaption>#{@caption}</figcaption>" if @caption
source += "</figure>"
source
end
end
end
Liquid::Template.register_tag('image', Jekyll::ImageTag)
```
Écrite en tant que shortcode Hugo:
```
<!-- image -->
<figure {{ with .Get "class" }}class="{{.}}"{{ end }}>
{{ with .Get "link"}}<a href="{{.}}">{{ end }}
<img src="{{ .Get "src" }}"
{{ if or (.Get "alt") (.Get "caption") }}
alt="{{ with .Get "alt"}}
{{.}}
{{else}}
{{ .Get "caption" }}
{{ end }}"
{{ end }} />
{{ if .Get "link"}}</a>{{ end }}
{{ if or (or (.Get "title") (.Get "caption")) (.Get "attr")}}
<figcaption>{{ if isset .Params "title" }}
{{ .Get "title" }}{{ end }}
{{ if or (.Get "caption") (.Get "attr")}}<p>
{{ .Get "caption" }}
{{ with .Get "attrlink"}}<a href="{{.}}"> {{ end }}
{{ .Get "attr" }}
{{ if .Get "attrlink"}}</a> {{ end }}
</p> {{ end }}
</figcaption>
{{ end }}
</figure>
<!-- image -->
```
### Utilisation
J'ai simplement changé :
```
{% image
full http://farm5.staticflickr.com/4136/4829260124_57712e570a_o_d.jpg
"One of my favorite touristy-type photos. I secretly waited for the
good light while we were "having fun" and took this. Only regret: a
stupid pole in the top-left corner of the frame I had to clumsily get
rid of at post-processing."
->http://www.flickr.com/photos/alexnormand/4829260124/in/
set-72157624547713078/ %}
```
pour cela (cet exemple utilise une version légèrement étendue nommée `fig`,
différente de la `figure` intégrée) :
```
{{%/* fig class="full"
src="http://farm5.staticflickr.com/4136/4829260124_57712e570a_o_d.jpg"
title="One of my favorite touristy-type photos. I secretly waited for the
good light while we were having fun and took this. Only regret: a stupid
pole in the top-left corner of the frame I had to clumsily get rid of at
post-processing."
link="http://www.flickr.com/photos/alexnormand/4829260124/in/
set-72157624547713078/" */%}}
```
Comme bonus, les paramètres nommés des shortcodes sont plus lisibles.
## Touches finales
### Corriger le contenu
Suivant le nombre de modifications que vous avez effectué sur chaque articles
avec Jekyll, cette étape requierra plus ou moins d'efforts. Il n'y a pas de
règles rigoureuses ici, si ce n'est que `hugo server --watch` est votre ami.
Testez vos modifications et corrigez les erreurs au besoin.
### Nettoyez le tout
Vous voudrez sûrement supprimer votre configuration Jekyll maintenant que tout
est fini. Exact, pensez à supprimer tout ce qui est inutilisé.
## Un exemple pratique
[Hey, it's Alex](http://heyitsalex.net/) a été migré de Jekyll vers Hugo en
moins de temps qu'une journée père enfant. Vous pouvez trouver toutes les
modification en regardant ce [diff](https://github.com/alexandre-normand/alexand
re-normand/compare/869d69435bd2665c3fbf5b5c78d4c22759d7613a...b7f6605b1265e83b4b
81495423294208cc74d610).

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aliases = ["posts","articles","blog","showcase"]
title = "Posts"
author = "Hugo Authors"
+++

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title = "(Hu)go Template Primer"
description = ""
type = "posts"
tags = [
"go",
"golang",
"templates",
"themes",
"development",
]
date = "2014-04-02"
categories = [
"Development",
"golang",
]
series = ["Hugo 101"]
author = "Hugo Authors"
+++
Hugo uses the excellent [Go][] [html/template][gohtmltemplate] library for
its template engine. It is an extremely lightweight engine that provides a very
small amount of logic. In our experience that it is just the right amount of
logic to be able to create a good static website. If you have used other
template systems from different languages or frameworks you will find a lot of
similarities in Go templates.
This document is a brief primer on using Go templates. The [Go docs][gohtmltemplate]
provide more details.
## Introduction to Go Templates
Go templates provide an extremely simple template language. It adheres to the
belief that only the most basic of logic belongs in the template or view layer.
One consequence of this simplicity is that Go templates parse very quickly.
A unique characteristic of Go templates is they are content aware. Variables and
content will be sanitized depending on the context of where they are used. More
details can be found in the [Go docs][gohtmltemplate].
## Basic Syntax
Golang templates are HTML files with the addition of variables and
functions.
**Go variables and functions are accessible within {{ }}**
Accessing a predefined variable "foo":
{{ foo }}
**Parameters are separated using spaces**
Calling the add function with input of 1, 2:
{{ add 1 2 }}
**Methods and fields are accessed via dot notation**
Accessing the Page Parameter "bar"
{{ .Params.bar }}
**Parentheses can be used to group items together**
{{ if or (isset .Params "alt") (isset .Params "caption") }} Caption {{ end }}
## Variables
Each Go template has a struct (object) made available to it. In hugo each
template is passed either a page or a node struct depending on which type of
page you are rendering. More details are available on the
[variables](/layout/variables) page.
A variable is accessed by referencing the variable name.
<title>{{ .Title }}</title>
Variables can also be defined and referenced.
{{ $address := "123 Main St."}}
{{ $address }}
## Functions
Go template ship with a few functions which provide basic functionality. The Go
template system also provides a mechanism for applications to extend the
available functions with their own. [Hugo template
functions](/layout/functions) provide some additional functionality we believe
are useful for building websites. Functions are called by using their name
followed by the required parameters separated by spaces. Template
functions cannot be added without recompiling hugo.
**Example:**
{{ add 1 2 }}
## Includes
When including another template you will pass to it the data it will be
able to access. To pass along the current context please remember to
include a trailing dot. The templates location will always be starting at
the /layout/ directory within Hugo.
**Example:**
{{ template "chrome/header.html" . }}
## Logic
Go templates provide the most basic iteration and conditional logic.
### Iteration
Just like in Go, the Go templates make heavy use of range to iterate over
a map, array or slice. The following are different examples of how to use
range.
**Example 1: Using Context**
{{ range array }}
{{ . }}
{{ end }}
**Example 2: Declaring value variable name**
{{range $element := array}}
{{ $element }}
{{ end }}
**Example 2: Declaring key and value variable name**
{{range $index, $element := array}}
{{ $index }}
{{ $element }}
{{ end }}
### Conditionals
If, else, with, or, & and provide the framework for handling conditional
logic in Go Templates. Like range, each statement is closed with `end`.
Go Templates treat the following values as false:
* false
* 0
* any array, slice, map, or string of length zero
**Example 1: If**
{{ if isset .Params "title" }}<h4>{{ index .Params "title" }}</h4>{{ end }}
**Example 2: If -> Else**
{{ if isset .Params "alt" }}
{{ index .Params "alt" }}
{{else}}
{{ index .Params "caption" }}
{{ end }}
**Example 3: And & Or**
{{ if and (or (isset .Params "title") (isset .Params "caption")) (isset .Params "attr")}}
**Example 4: With**
An alternative way of writing "if" and then referencing the same value
is to use "with" instead. With rebinds the context `.` within its scope,
and skips the block if the variable is absent.
The first example above could be simplified as:
{{ with .Params.title }}<h4>{{ . }}</h4>{{ end }}
**Example 5: If -> Else If**
{{ if isset .Params "alt" }}
{{ index .Params "alt" }}
{{ else if isset .Params "caption" }}
{{ index .Params "caption" }}
{{ end }}
## Pipes
One of the most powerful components of Go templates is the ability to
stack actions one after another. This is done by using pipes. Borrowed
from unix pipes, the concept is simple, each pipeline's output becomes the
input of the following pipe.
Because of the very simple syntax of Go templates, the pipe is essential
to being able to chain together function calls. One limitation of the
pipes is that they only can work with a single value and that value
becomes the last parameter of the next pipeline.
A few simple examples should help convey how to use the pipe.
**Example 1 :**
{{ if eq 1 1 }} Same {{ end }}
is the same as
{{ eq 1 1 | if }} Same {{ end }}
It does look odd to place the if at the end, but it does provide a good
illustration of how to use the pipes.
**Example 2 :**
{{ index .Params "disqus_url" | html }}
Access the page parameter called "disqus_url" and escape the HTML.
**Example 3 :**
{{ if or (or (isset .Params "title") (isset .Params "caption")) (isset .Params "attr")}}
Stuff Here
{{ end }}
Could be rewritten as
{{ isset .Params "caption" | or isset .Params "title" | or isset .Params "attr" | if }}
Stuff Here
{{ end }}
## Context (aka. the dot)
The most easily overlooked concept to understand about Go templates is that {{ . }}
always refers to the current context. In the top level of your template this
will be the data set made available to it. Inside of a iteration it will have
the value of the current item. When inside of a loop the context has changed. .
will no longer refer to the data available to the entire page. If you need to
access this from within the loop you will likely want to set it to a variable
instead of depending on the context.
**Example:**
{{ $title := .Site.Title }}
{{ range .Params.tags }}
<li> <a href="{{ $baseurl }}/tags/{{ . | urlize }}">{{ . }}</a> - {{ $title }} </li>
{{ end }}
Notice how once we have entered the loop the value of {{ . }} has changed. We
have defined a variable outside of the loop so we have access to it from within
the loop.
# Hugo Parameters
Hugo provides the option of passing values to the template language
through the site configuration (for sitewide values), or through the meta
data of each specific piece of content. You can define any values of any
type (supported by your front matter/config format) and use them however
you want to inside of your templates.
## Using Content (page) Parameters
In each piece of content you can provide variables to be used by the
templates. This happens in the [front matter](/content/front-matter).
An example of this is used in this documentation site. Most of the pages
benefit from having the table of contents provided. Sometimes the TOC just
doesn't make a lot of sense. We've defined a variable in our front matter
of some pages to turn off the TOC from being displayed.
Here is the example front matter:
```
---
title: "Permalinks"
date: "2013-11-18"
aliases:
- "/doc/permalinks/"
groups: ["extras"]
groups_weight: 30
notoc: true
---
```
Here is the corresponding code inside of the template:
{{ if not .Params.notoc }}
<div id="toc" class="well col-md-4 col-sm-6">
{{ .TableOfContents }}
</div>
{{ end }}
## Using Site (config) Parameters
In your top-level configuration file (eg, `config.yaml`) you can define site
parameters, which are values which will be available to you in chrome.
For instance, you might declare:
```yaml
params:
CopyrightHTML: "Copyright &#xA9; 2013 John Doe. All Rights Reserved."
TwitterUser: "spf13"
SidebarRecentLimit: 5
```
Within a footer layout, you might then declare a `<footer>` which is only
provided if the `CopyrightHTML` parameter is provided, and if it is given,
you would declare it to be HTML-safe, so that the HTML entity is not escaped
again. This would let you easily update just your top-level config file each
January 1st, instead of hunting through your templates.
```
{{if .Site.Params.CopyrightHTML}}<footer>
<div class="text-center">{{.Site.Params.CopyrightHTML | safeHtml}}</div>
</footer>{{end}}
```
An alternative way of writing the "if" and then referencing the same value
is to use "with" instead. With rebinds the context `.` within its scope,
and skips the block if the variable is absent:
```
{{with .Site.Params.TwitterUser}}<span class="twitter">
<a href="https://twitter.com/{{.}}" rel="author">
<img src="/images/twitter.png" width="48" height="48" title="Twitter: {{.}}"
alt="Twitter"></a>
</span>{{end}}
```
Finally, if you want to pull "magic constants" out of your layouts, you can do
so, such as in this example:
```
<nav class="recent">
<h1>Recent Posts</h1>
<ul>{{range first .Site.Params.SidebarRecentLimit .Site.Recent}}
<li><a href="{{.RelPermalink}}">{{.Title}}</a></li>
{{end}}</ul>
</nav>
```
[go]: https://golang.org/
[gohtmltemplate]: https://golang.org/pkg/html/template/

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@ -0,0 +1,90 @@
+++
title = "Getting Started with Hugo"
description = ""
tags = [
"go",
"golang",
"hugo",
"development",
]
date = "2014-04-02"
categories = [
"Development",
"golang",
]
series = ["Hugo 101"]
author = "Hugo Authors"
+++
## Step 1. Install Hugo
Go to [Hugo releases](https://github.com/spf13/hugo/releases) and download the
appropriate version for your OS and architecture.
Save it somewhere specific as we will be using it in the next step.
More complete instructions are available at [Install Hugo](https://gohugo.io/getting-started/installing/)
## Step 2. Build the Docs
Hugo has its own example site which happens to also be the documentation site
you are reading right now.
Follow the following steps:
1. Clone the [Hugo repository](http://github.com/spf13/hugo)
2. Go into the repo
3. Run hugo in server mode and build the docs
4. Open your browser to http://localhost:1313
Corresponding pseudo commands:
git clone https://github.com/spf13/hugo
cd hugo
/path/to/where/you/installed/hugo server --source=./docs
> 29 pages created
> 0 tags index created
> in 27 ms
> Web Server is available at http://localhost:1313
> Press ctrl+c to stop
Once you've gotten here, follow along the rest of this page on your local build.
## Step 3. Change the docs site
Stop the Hugo process by hitting Ctrl+C.
Now we are going to run hugo again, but this time with hugo in watch mode.
/path/to/hugo/from/step/1/hugo server --source=./docs --watch
> 29 pages created
> 0 tags index created
> in 27 ms
> Web Server is available at http://localhost:1313
> Watching for changes in /Users/spf13/Code/hugo/docs/content
> Press ctrl+c to stop
Open your [favorite editor](http://vim.spf13.com) and change one of the source
content pages. How about changing this very file to *fix the typo*. How about changing this very file to *fix the typo*.
Content files are found in `docs/content/`. Unless otherwise specified, files
are located at the same relative location as the url, in our case
`docs/content/overview/quickstart.md`.
Change and save this file.. Notice what happened in your terminal.
> Change detected, rebuilding site
> 29 pages created
> 0 tags index created
> in 26 ms
Refresh the browser and observe that the typo is now fixed.
Notice how quick that was. Try to refresh the site before it's finished building. I double dare you.
Having nearly instant feedback enables you to have your creativity flow without waiting for long builds.
## Step 4. Have fun
The best way to learn something is to play with it.

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---
author: "Hugo Authors"
date: 2014-03-10
linktitle: Migrating from Jekyll
title: Migrate to Hugo from Jekyll
type: posts
weight: 10
series:
- Hugo 101
aliases:
- /blog/migrate-from-jekyll/
---
## Move static content to `static`
Jekyll has a rule that any directory not starting with `_` will be copied as-is to the `_site` output. Hugo keeps all static content under `static`. You should therefore move it all there.
With Jekyll, something that looked like
▾ <root>/
▾ images/
logo.png
should become
▾ <root>/
▾ static/
▾ images/
logo.png
Additionally, you'll want any files that should reside at the root (such as `CNAME`) to be moved to `static`.
## Create your Hugo configuration file
Hugo can read your configuration as JSON, YAML or TOML. Hugo supports parameters custom configuration too. Refer to the [Hugo configuration documentation](/overview/configuration/) for details.
## Set your configuration publish folder to `_site`
The default is for Jekyll to publish to `_site` and for Hugo to publish to `public`. If, like me, you have [`_site` mapped to a git submodule on the `gh-pages` branch](http://blog.blindgaenger.net/generate_github_pages_in_a_submodule.html), you'll want to do one of two alternatives:
1. Change your submodule to point to map `gh-pages` to public instead of `_site` (recommended).
git submodule deinit _site
git rm _site
git submodule add -b gh-pages git@github.com:your-username/your-repo.git public
2. Or, change the Hugo configuration to use `_site` instead of `public`.
{
..
"publishdir": "_site",
..
}
## Convert Jekyll templates to Hugo templates
That's the bulk of the work right here. The documentation is your friend. You should refer to [Jekyll's template documentation](http://jekyllrb.com/docs/templates/) if you need to refresh your memory on how you built your blog and [Hugo's template](/layout/templates/) to learn Hugo's way.
As a single reference data point, converting my templates for [heyitsalex.net](http://heyitsalex.net/) took me no more than a few hours.
## Convert Jekyll plugins to Hugo shortcodes
Jekyll has [plugins](http://jekyllrb.com/docs/plugins/); Hugo has [shortcodes](/doc/shortcodes/). It's fairly trivial to do a port.
### Implementation
As an example, I was using a custom [`image_tag`](https://github.com/alexandre-normand/alexandre-normand/blob/74bb12036a71334fdb7dba84e073382fc06908ec/_plugins/image_tag.rb) plugin to generate figures with caption when running Jekyll. As I read about shortcodes, I found Hugo had a nice built-in shortcode that does exactly the same thing.
Jekyll's plugin:
module Jekyll
class ImageTag < Liquid::Tag
@url = nil
@caption = nil
@class = nil
@link = nil
// Patterns
IMAGE_URL_WITH_CLASS_AND_CAPTION =
IMAGE_URL_WITH_CLASS_AND_CAPTION_AND_LINK = /(\w+)(\s+)((https?:\/\/|\/)(\S+))(\s+)"(.*?)"(\s+)->((https?:\/\/|\/)(\S+))(\s*)/i
IMAGE_URL_WITH_CAPTION = /((https?:\/\/|\/)(\S+))(\s+)"(.*?)"/i
IMAGE_URL_WITH_CLASS = /(\w+)(\s+)((https?:\/\/|\/)(\S+))/i
IMAGE_URL = /((https?:\/\/|\/)(\S+))/i
def initialize(tag_name, markup, tokens)
super
if markup =~ IMAGE_URL_WITH_CLASS_AND_CAPTION_AND_LINK
@class = $1
@url = $3
@caption = $7
@link = $9
elsif markup =~ IMAGE_URL_WITH_CLASS_AND_CAPTION
@class = $1
@url = $3
@caption = $7
elsif markup =~ IMAGE_URL_WITH_CAPTION
@url = $1
@caption = $5
elsif markup =~ IMAGE_URL_WITH_CLASS
@class = $1
@url = $3
elsif markup =~ IMAGE_URL
@url = $1
end
end
def render(context)
if @class
source = "<figure class='#{@class}'>"
else
source = "<figure>"
end
if @link
source += "<a href=\"#{@link}\">"
end
source += "<img src=\"#{@url}\">"
if @link
source += "</a>"
end
source += "<figcaption>#{@caption}</figcaption>" if @caption
source += "</figure>"
source
end
end
end
Liquid::Template.register_tag('image', Jekyll::ImageTag)
is written as this Hugo shortcode:
<!-- image -->
<figure {{ with .Get "class" }}class="{{.}}"{{ end }}>
{{ with .Get "link"}}<a href="{{.}}">{{ end }}
<img src="{{ .Get "src" }}" {{ if or (.Get "alt") (.Get "caption") }}alt="{{ with .Get "alt"}}{{.}}{{else}}{{ .Get "caption" }}{{ end }}"{{ end }} />
{{ if .Get "link"}}</a>{{ end }}
{{ if or (or (.Get "title") (.Get "caption")) (.Get "attr")}}
<figcaption>{{ if isset .Params "title" }}
{{ .Get "title" }}{{ end }}
{{ if or (.Get "caption") (.Get "attr")}}<p>
{{ .Get "caption" }}
{{ with .Get "attrlink"}}<a href="{{.}}"> {{ end }}
{{ .Get "attr" }}
{{ if .Get "attrlink"}}</a> {{ end }}
</p> {{ end }}
</figcaption>
{{ end }}
</figure>
<!-- image -->
### Usage
I simply changed:
{% image full http://farm5.staticflickr.com/4136/4829260124_57712e570a_o_d.jpg "One of my favorite touristy-type photos. I secretly waited for the good light while we were "having fun" and took this. Only regret: a stupid pole in the top-left corner of the frame I had to clumsily get rid of at post-processing." ->http://www.flickr.com/photos/alexnormand/4829260124/in/set-72157624547713078/ %}
to this (this example uses a slightly extended version named `fig`, different than the built-in `figure`):
{{%/* fig class="full" src="http://farm5.staticflickr.com/4136/4829260124_57712e570a_o_d.jpg" title="One of my favorite touristy-type photos. I secretly waited for the good light while we were having fun and took this. Only regret: a stupid pole in the top-left corner of the frame I had to clumsily get rid of at post-processing." link="http://www.flickr.com/photos/alexnormand/4829260124/in/set-72157624547713078/" */%}}
As a bonus, the shortcode named parameters are, arguably, more readable.
## Finishing touches
### Fix content
Depending on the amount of customization that was done with each post with Jekyll, this step will require more or less effort. There are no hard and fast rules here except that `hugo server --watch` is your friend. Test your changes and fix errors as needed.
### Clean up
You'll want to remove the Jekyll configuration at this point. If you have anything else that isn't used, delete it.
## A practical example in a diff
[Hey, it's Alex](http://heyitsalex.net/) was migrated in less than a _father-with-kids day_ from Jekyll to Hugo. You can see all the changes (and screw-ups) by looking at this [diff](https://github.com/alexandre-normand/alexandre-normand/compare/869d69435bd2665c3fbf5b5c78d4c22759d7613a...b7f6605b1265e83b4b81495423294208cc74d610).

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@ -1,857 +1,26 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<link rel="dns-prefetch" href="https://github.githubassets.com">
<link rel="dns-prefetch" href="https://avatars0.githubusercontent.com">
<link rel="dns-prefetch" href="https://avatars1.githubusercontent.com">
<link rel="dns-prefetch" href="https://avatars2.githubusercontent.com">
<link rel="dns-prefetch" href="https://avatars3.githubusercontent.com">
<link rel="dns-prefetch" href="https://github-cloud.s3.amazonaws.com">
<link rel="dns-prefetch" href="https://user-images.githubusercontent.com/">
<link crossorigin="anonymous" media="all" integrity="sha512-R+Vpkv86him5JZcqAEuQRUGOKqH897w6q7uJ1P65tQR+9Hxar5vU4wpEd4uvcXT8ooRZ7zsNftrjnCemEt2u2Q==" rel="stylesheet" href="https://github.githubassets.com/assets/frameworks-f4557b27209914aa4705202b188165b5.css" />
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<meta name="viewport" content="width=device-width">
<title>hugo-mondrian-theme/lines-from-center.html at master · redraw/hugo-mondrian-theme · GitHub</title>
<meta name="description" content="Mondrian-like minimal theme for Hugo. Contribute to redraw/hugo-mondrian-theme development by creating an account on GitHub.">
<link rel="search" type="application/opensearchdescription+xml" href="/opensearch.xml" title="GitHub">
<link rel="fluid-icon" href="https://github.com/fluidicon.png" title="GitHub">
<meta property="fb:app_id" content="1401488693436528">
<meta property="og:image" content="https://avatars2.githubusercontent.com/u/10843208?s=400&amp;v=4" /><meta property="og:site_name" content="GitHub" /><meta property="og:type" content="object" /><meta property="og:title" content="redraw/hugo-mondrian-theme" /><meta property="og:url" content="https://github.com/redraw/hugo-mondrian-theme" /><meta property="og:description" content="Mondrian-like minimal theme for Hugo. Contribute to redraw/hugo-mondrian-theme development by creating an account on GitHub." />
<link rel="assets" href="https://github.githubassets.com/">
<meta name="pjax-timeout" content="1000">
<meta name="request-id" content="C40F:0512:65BEA:BC528:5C81A201" data-pjax-transient>
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<meta name="octolytics-host" content="collector.githubapp.com" /><meta name="octolytics-app-id" content="github" /><meta name="octolytics-event-url" content="https://collector.githubapp.com/github-external/browser_event" /><meta name="octolytics-dimension-request_id" content="C40F:0512:65BEA:BC528:5C81A201" /><meta name="octolytics-dimension-region_edge" content="iad" /><meta name="octolytics-dimension-region_render" content="iad" />
<meta name="analytics-location" content="/&lt;user-name&gt;/&lt;repo-name&gt;/blob/show" data-pjax-transient="true" />
<meta class="js-ga-set" name="dimension1" content="Logged Out">
<meta name="hostname" content="github.com">
<meta name="user-login" content="">
<meta name="expected-hostname" content="github.com">
<meta name="js-proxy-site-detection-payload" content="ZjNkYjMyMzFjYWQ1ZGY1MTA4MjA1MWY5ZmFhZDcyMDFlNWE5ODlkZmRhMzI1YjJiM2E0NDk5ZmUxNzI0Y2E1ZHx7InJlbW90ZV9hZGRyZXNzIjoiOTQuNjYuMjIxLjY0IiwicmVxdWVzdF9pZCI6IkM0MEY6MDUxMjo2NUJFQTpCQzUyODo1QzgxQTIwMSIsInRpbWVzdGFtcCI6MTU1MTk5OTQ5MSwiaG9zdCI6ImdpdGh1Yi5jb20ifQ==">
<meta name="enabled-features" content="UNIVERSE_BANNER,MARKETPLACE_SOCIAL_PROOF,MARKETPLACE_PLAN_RESTRICTION_EDITOR,MARKETPLACE_BROWSING_V2">
<meta name="html-safe-nonce" content="a7f7bf43455033a9954716c0a033942638828497">
<meta http-equiv="x-pjax-version" content="7d19c1ce4c429772d4cd9a00356578ee">
<link href="https://github.com/redraw/hugo-mondrian-theme/commits/master.atom" rel="alternate" title="Recent Commits to hugo-mondrian-theme:master" type="application/atom+xml">
<meta name="go-import" content="github.com/redraw/hugo-mondrian-theme git https://github.com/redraw/hugo-mondrian-theme.git">
<meta name="octolytics-dimension-user_id" content="10843208" /><meta name="octolytics-dimension-user_login" content="redraw" /><meta name="octolytics-dimension-repository_id" content="174063215" /><meta name="octolytics-dimension-repository_nwo" content="redraw/hugo-mondrian-theme" /><meta name="octolytics-dimension-repository_public" content="true" /><meta name="octolytics-dimension-repository_is_fork" content="false" /><meta name="octolytics-dimension-repository_network_root_id" content="174063215" /><meta name="octolytics-dimension-repository_network_root_nwo" content="redraw/hugo-mondrian-theme" /><meta name="octolytics-dimension-repository_explore_github_marketplace_ci_cta_shown" content="false" />
<link rel="canonical" href="https://github.com/redraw/hugo-mondrian-theme/blob/master/exampleSite/content/sketch/lines-from-center.html" data-pjax-transient>
<meta name="browser-stats-url" content="https://api.github.com/_private/browser/stats">
<meta name="browser-errors-url" content="https://api.github.com/_private/browser/errors">
<link rel="mask-icon" href="https://github.githubassets.com/pinned-octocat.svg" color="#000000">
<link rel="icon" type="image/x-icon" class="js-site-favicon" href="https://github.githubassets.com/favicon.ico">
<meta name="theme-color" content="#1e2327">
<link rel="manifest" href="/manifest.json" crossOrigin="use-credentials">
</head>
<body class="logged-out env-production page-blob">
<div class="position-relative js-header-wrapper ">
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<td id="LC2" class="blob-code blob-code-inner js-file-line">title: &quot;Lines from center&quot;</td>
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<td id="LC3" class="blob-code blob-code-inner js-file-line">date: 2019-03-04T22:15:42-03:00</td>
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<td id="LC4" class="blob-code blob-code-inner js-file-line">description: &quot;this is a p5js sketch&quot;</td>
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<td id="LC7" class="blob-code blob-code-inner js-file-line"> - https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.7.3/p5.min.js</td>
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<td id="LC10" class="blob-code blob-code-inner js-file-line">&lt;<span class="pl-ent">div</span> <span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">&quot;</span>sketch<span class="pl-pds">&quot;</span></span>&gt;&lt;/<span class="pl-ent">div</span>&gt;</td>
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<td id="LC13" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> <span class="pl-k">var</span> sketch <span class="pl-k">=</span> <span class="pl-c1">document</span>.<span class="pl-c1">getElementById</span>(<span class="pl-s"><span class="pl-pds">&#39;</span>sketch<span class="pl-pds">&#39;</span></span>)</span></td>
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<td id="LC14" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> <span class="pl-k">function</span> <span class="pl-en">setup</span>() {</span></td>
</tr>
<tr>
<td id="L15" class="blob-num js-line-number" data-line-number="15"></td>
<td id="LC15" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> <span class="pl-k">var</span> canvas <span class="pl-k">=</span> <span class="pl-en">createCanvas</span>(windowWidth, windowHeight)</span></td>
</tr>
<tr>
<td id="L16" class="blob-num js-line-number" data-line-number="16"></td>
<td id="LC16" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> <span class="pl-smi">canvas</span>.<span class="pl-c1">parent</span>(<span class="pl-s"><span class="pl-pds">&#39;</span>#sketch<span class="pl-pds">&#39;</span></span>)</span></td>
</tr>
<tr>
<td id="L17" class="blob-num js-line-number" data-line-number="17"></td>
<td id="LC17" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> }</span></td>
</tr>
<tr>
<td id="L18" class="blob-num js-line-number" data-line-number="18"></td>
<td id="LC18" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"></span></td>
</tr>
<tr>
<td id="L19" class="blob-num js-line-number" data-line-number="19"></td>
<td id="LC19" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> <span class="pl-k">function</span> <span class="pl-en">draw</span>() {</span></td>
</tr>
<tr>
<td id="L20" class="blob-num js-line-number" data-line-number="20"></td>
<td id="LC20" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> <span class="pl-en">line</span>(width<span class="pl-k">/</span><span class="pl-c1">2</span>, height<span class="pl-k">/</span><span class="pl-c1">2</span>, mouseX, mouseY)</span></td>
</tr>
<tr>
<td id="L21" class="blob-num js-line-number" data-line-number="21"></td>
<td id="LC21" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> }</span></td>
</tr>
<tr>
<td id="L22" class="blob-num js-line-number" data-line-number="22"></td>
<td id="LC22" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"></span></td>
</tr>
<tr>
<td id="L23" class="blob-num js-line-number" data-line-number="23"></td>
<td id="LC23" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> <span class="pl-k">function</span> <span class="pl-en">windowResized</span>() {</span></td>
</tr>
<tr>
<td id="L24" class="blob-num js-line-number" data-line-number="24"></td>
<td id="LC24" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> <span class="pl-en">resizeCanvas</span>(windowWidth, windowHeight);</span></td>
</tr>
<tr>
<td id="L25" class="blob-num js-line-number" data-line-number="25"></td>
<td id="LC25" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"> }</span></td>
</tr>
<tr>
<td id="L26" class="blob-num js-line-number" data-line-number="26"></td>
<td id="LC26" class="blob-code blob-code-inner js-file-line"><span class="pl-s1"></span>&lt;/<span class="pl-ent">script</span>&gt;</td>
</tr>
</table>
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<svg class="octicon octicon-kebab-horizontal" viewBox="0 0 13 16" version="1.1" width="13" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M1.5 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3zm5 0a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3zM13 7.5a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0z"/></svg>
</summary>
<details-menu>
<ul class="BlobToolbar-dropdown dropdown-menu dropdown-menu-se mt-2" style="width:185px">
<li><clipboard-copy role="menuitem" class="dropdown-item" id="js-copy-lines" style="cursor:pointer;" data-original-text="Copy lines">Copy lines</clipboard-copy></li>
<li><clipboard-copy role="menuitem" class="dropdown-item" id="js-copy-permalink" style="cursor:pointer;" data-original-text="Copy permalink">Copy permalink</clipboard-copy></li>
<li><a class="dropdown-item js-update-url-with-hash" id="js-view-git-blame" role="menuitem" href="/redraw/hugo-mondrian-theme/blame/fb755e1e9e7ac8936ff30a723a9eeacfb3d43e5a/exampleSite/content/sketch/lines-from-center.html">View git blame</a></li>
<li><a class="dropdown-item" id="js-new-issue" role="menuitem" href="/redraw/hugo-mondrian-theme/issues/new">Reference in new issue</a></li>
</ul>
</details-menu>
</details>
</div>
</div>
<details class="details-reset details-overlay details-overlay-dark">
<summary data-hotkey="l" aria-label="Jump to line"></summary>
<details-dialog class="Box Box--overlay d-flex flex-column anim-fade-in fast linejump" aria-label="Jump to line">
<!-- '"` --><!-- </textarea></xmp> --></option></form><form class="js-jump-to-line-form Box-body d-flex" action="" accept-charset="UTF-8" method="get"><input name="utf8" type="hidden" value="&#x2713;" />
<input class="form-control flex-auto mr-3 linejump-input js-jump-to-line-field" type="text" placeholder="Jump to line&hellip;" aria-label="Jump to line" autofocus>
<button type="submit" class="btn" data-close-dialog>Go</button>
</form> </details-dialog>
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<div class="modal-backdrop js-touch-events"></div>
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<svg class="octicon octicon-alert" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M8.893 1.5c-.183-.31-.52-.5-.887-.5s-.703.19-.886.5L.138 13.499a.98.98 0 0 0 0 1.001c.193.31.53.501.886.501h13.964c.367 0 .704-.19.877-.5a1.03 1.03 0 0 0 .01-1.002L8.893 1.5zm.133 11.497H6.987v-2.003h2.039v2.003zm0-3.004H6.987V5.987h2.039v4.006z"/></svg>
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<svg class="octicon octicon-x" viewBox="0 0 12 16" version="1.1" width="12" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M7.48 8l3.75 3.75-1.48 1.48L6 9.48l-3.75 3.75-1.48-1.48L4.52 8 .77 4.25l1.48-1.48L6 6.52l3.75-3.75 1.48 1.48L7.48 8z"/></svg>
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<details class="details-reset details-overlay details-overlay-dark lh-default text-gray-dark" open>
<summary aria-haspopup="dialog" aria-label="Close dialog"></summary>
<details-dialog class="Box Box--overlay d-flex flex-column anim-fade-in fast">
<button class="Box-btn-octicon m-0 btn-octicon position-absolute right-0 top-0" type="button" aria-label="Close dialog" data-close-dialog>
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<div class="Popover js-hovercard-content position-absolute" style="display: none; outline: none;" tabindex="0">
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</body>
</html>
---
title: "Lines from center"
date: 2019-03-04T22:15:42-03:00
description: "this is a p5js sketch"
libs:
js:
- https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.7.3/p5.min.js
---
<div id="sketch"></div>
<script>
var sketch = document.getElementById('sketch')
function setup() {
var canvas = createCanvas(windowWidth, windowHeight)
canvas.parent('#sketch')
}
function draw() {
line(width/2, height/2, mouseX, mouseY)
}
function windowResized() {
resizeCanvas(windowWidth, windowHeight);
}
</script>