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spip2markdown_options.php
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spip2markdown_options.php
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<?php
include_spip('inc/config');
function spip2markdown($text, $context = '') {
$text = spip2markdown_normaliser_retours_chariot($text);
list($text, $code) = spip2markdown_extraire_code($text);
$text = spip2markdown_liens($text);
$text = spip2markdown_notes($text, $context);
$text = spip2markdown_intertitres($text);
$text = spip2markdown_gras($text);
$text = spip2markdown_italiques($text);
$text = spip2markdown_citations($text);
$text = spip2markdown_listes_non_ordonnees($text);
$text = spip2markdown_listes_ordonnees($text);
$text = spip2markdown_documents($text);
$text = spip2markdown_reinserer_code($text, $code);
if(lire_config("spip2markdown/youtube") == "oui") {
$text = spip2markdown_youtube($text);
}
if(lire_config("spip2markdown/twitter") == "oui") {
$text = spip2markdown_twitter($text);
}
$text = spip2markdown_nettoyer($text);
return $text;
}
function spip2markdown_normaliser_retours_chariot($text) {
$text = preg_replace("/\r\n/u", "\n", $text);
$text = preg_replace("/\n\r/u", "\n", $text);
return $text;
}
function spip2markdown_extraire_code($text) {
$code = [];
$text = preg_replace("/<code([^>]*>)/ui", "☞$1", $text);
$text = preg_replace("/<\/code>/ui", "☜", $text);
$count = 0;
$text = preg_replace_callback(
"/☞([^☜]+)☜/u",
function($match) use (&$count, &$code) {
$code[$count] = $match[1];
return "@CODE@" . $count++ . "@CODE@";
},
$text
);
return array($text, $code);
}
function spip2markdown_reinserer_code($text, $code) {
// SPIP : <code>…</code>
// Kramdown : ```\n``` pour code en bloc et `…` pour code en ligne
// réinsertion du code préalablement extrait
foreach ($code as $key => $value) {
$text = str_replace("@CODE@" . $key . "@CODE@", "<code" . $value . "</code>", $text);
}
// code en bloc
$text = preg_replace("/\n<code( class=\"([^\"]+)\")?>\n/ui", "\n```$2\n", $text);
$text = preg_replace("/\n<\/code>\n/ui", "\n```\n", $text);
// code en ligne
$text = preg_replace("/<\/?code([^>]*)>/ui", "`", $text);
return $text;
}
function spip2markdown_liens($text) {
// Liens sans libellé
// SPIP : [libellé->url]
// Kramdown : [libellé](url) ou <url> si libellé vide
$text = preg_replace_callback(
"/\[([^\]]*)->([^\]]+)\]/u",
function($match) {
$libelle = '';
$url = '';
if ($match[1] !== '') {
if (preg_match("/(.+)\{([a-z]{2})\}$/u", $match[1], $match_lang)) {
$libelle = $match_lang[1] . " (" . $match_lang[2] . ")";
} else {
$libelle = $match[1];
}
}
if (preg_match("/^(a|art|article)([0-9]+)$/", $match[2], $match_art)) {
$spip_article = sql_fetsel("titre, date", "spip_articles", "id_article=" . $match_art[2]);
if ($libelle === '') {
$libelle = $spip_article['titre'];
}
$spip_url = sql_fetsel("url", "spip_urls", "type='article' AND id_objet=" . $match_art[2], "", "date DESC", "0,1");
$url = preg_replace("/^([0-9]{4})-([0-9]{2})-.*$/u", "/$1/$2/", $spip_article['date']) . $spip_url['url'] . ".html";
} else {
$url = $match[2];
}
if ($libelle === '' || $libelle === $url) {
return "<" . $url . ">";
} else {
return "[" . $libelle . "](" . $url . ")";
}
},
$text
);
return $text;
}
function spip2markdown_notes($text, $context) {
// SPIP : [[…]]
// Kramdown : [^n] dans le texte et [^n]: … en fin de contenu
$text = preg_replace("/(^|[^\[])\[\[([^\[]|$)/u", "$1☞$2", $text);
$text = preg_replace("/(^|[^\]])\]\]([^\]]|$)/u", "$1☜$2", $text);
$count = 0;
$notes = "\n";
$text = preg_replace_callback(
"/☞([^☜]+)☜/u",
function($match) use (&$count, &$notes, &$context) {
$count++;
$notes .= "\n\n[^" . $context . $count . "]: " . $match[1];
return "[^" . $context . $count . "]";
},
$text
);
$text .= $notes;
return $text;
}
function spip2markdown_intertitres($text) {
// SPIP : {{{…}}}
// Kramdown : ## …
$text = preg_replace("/(^|[^{]){{{([^}]+)}}}([^}]|$)/u", "$1\n## $2\n$3", $text);
$text = preg_replace("/\n\n?(## [^\n]*)\n\n?/u", "\n$1\n", $text); // retrait des retours chariot en trop
return $text;
}
function spip2markdown_gras($text) {
// SPIP : {{…}}
// Kramdown : **…**
$text = preg_replace("/(^|[^{]){{([^}]+)}}([^}]|$)/u", "$1**$2**$3", $text);
$text = preg_replace("/(^|[^{]){{([^}]+)}}([^}]|$)/u", "$1**$2**$3", $text);
return $text;
}
function spip2markdown_italiques($text) {
// SPIP : {…}
// Kramdown : *…*
$text = preg_replace("/(^|[^{]){([^}]+)}([^}]|$)/u", "$1*$2*$3", $text);
$text = preg_replace("/(^|[^{]){([^}]+)}([^}]|$)/u", "$1*$2*$3", $text);
return $text;
}
function spip2markdown_citations($text) {
// SPIP : <quote>…</quote>
// Kramdown : >
$text = preg_replace("/<quote>\n?/ui", "☞", $text);
$text = preg_replace("/\n?<\/quote>/ui", "☜", $text);
$text = preg_replace_callback(
"/☞([^☜]+)☜/u",
function($match) {
return "\n> ".preg_replace("/\n/u", "\n> ", $match[1]);
},
$text
);
return $text;
}
function spip2markdown_listes_non_ordonnees($text) {
// SPIP : - ou -* en premier niveau, -** pour second niveau, etc.
// Kramdown : - avec indentations par multiples de 4 espaces
$text = preg_replace("/(^|\n)-\*? /u", "\n$1- ", $text); // ajout d'un retour chariot pour séparer d'un éventuel élément non liste
$text = preg_replace("/\n- ([^\n]*)\n\n- /u", "\n- $1\n- ", $text); // retrait des retours chariot en trop
$text = preg_replace("/\n- ([^\n]*)\n\n- /u", "\n- $1\n- ", $text); // retrait des retours chariot en trop
$text = preg_replace("/(^|\n)-\*\* /u", "$1 - ", $text);
$text = preg_replace("/(^|\n)-\*\*\* /u", "$1 - ", $text);
$text = preg_replace("/(^|\n)-\*\*\*\* /u", "$1 - ", $text);
return $text;
}
function spip2markdown_listes_ordonnees($text) {
// SPIP : -# en premier niveau, -## pour second niveau, etc.
// Kramdown : 1. avec indentations par multiples de 4 espaces
$text = preg_replace("/(^|\n)-# /u", "\n${1}1. ", $text);
$text = preg_replace("/\n1\. ([^\n]*)\n\n1\. /u", "\n1. $1\n1. ", $text); // retrait des retours chariot en trop
$text = preg_replace("/\n1\. ([^\n]*)\n\n1\. /u", "\n1. $1\n1. ", $text); // retrait des retours chariot en trop
$text = preg_replace("/(^|\n)-## /u", "$1 1. ", $text);
$text = preg_replace("/(^|\n)-### /u", "$1 1. ", $text);
$text = preg_replace("/(^|\n)-#### /u", "$1 1. ", $text);
return $text;
}
function spip2markdown_documents($text) {
// SPIP : <doc…|…> ou <img…|…> ou <emb…|…>
// Kramdown :
// - <figure>{% picture blah-blah.jpg %}<figcaption>blah…</figcaption></figure> pour les images
// cf https://github.com/gettalong/kramdown/issues/48#issuecomment-16698925
// - ou un lien
$text = preg_replace_callback(
"/<(doc|img|emb)([0-9]+)[^0-9>]*>/ui",
function($match) {
$doc_id = $match[2];
$doc = sql_fetsel("titre, descriptif, fichier, mode, media", "spip_documents", "id_document=$doc_id");
if ($doc['media'] == "image") {
if(lire_config("spip2markdown/cloudinary") == "oui") {
$doc_str = "{% cloudinary " . basename($doc['fichier']);
} else {
$doc_str = "<figure>\n {% picture " . basename($doc['fichier']) . " %}";
}
if (strlen($doc['titre']) > 0 || strlen($doc['descriptif']) > 0) {
if(lire_config("spip2markdown/cloudinary") == "oui") {
$doc_str .= " caption=\"";
} else {
$doc_str .= "\n <figcaption>";
}
if (strlen($doc['titre']) > 0) {
$doc_str .= "" . preg_replace("/\n$/", "", spip2markdown($doc['titre']));
}
if (strlen($doc['descriptif']) > 0) {
if (strlen($doc['titre']) > 0) {
$doc_str .= ". ";
}
$doc_str .= preg_replace("/\n$/", "", spip2markdown($doc['descriptif']));
}
if(lire_config("spip2markdown/cloudinary") == "oui") {
$doc_str .= "\"";
} else {
$doc_str .= " </figcaption>";
}
}
if(lire_config("spip2markdown/cloudinary") == "oui") {
$doc_str .= " %}\n";
} else {
$doc_str .= "\n</figure>\n";
}
} else {
$doc_str = "[" . $doc['titre'] . "](" . basename($doc['fichier']) . ")";
}
return $doc_str;
},
$text
);
return $text;
}
function spip2markdown_youtube($text) {
// SPIP / HTML : <iframe src="https://www.youtube.com/embed/…"></iframe>
// Jekyll Youtube Lazyload : {% youtube … %} cf https://github.com/erossignon/jekyll-youtube-lazyloading
$text = preg_replace("/<iframe [^>]*src=\"https?:\/\/www\.youtube\.com\/embed\/([^\"\?]+)(\?[^\"]+)?\"[^>]*><\/iframe>/u", "{% youtube $1 %}", $text);
return $text;
}
function spip2markdown_twitter($text) {
// SPIP / HTML : <blockquote class="twitter-tweet">…<a href="https://twitter.com/mariejulien/statuses/354870574595584000">…</a></blockquote><script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>
// Jekyll Twitter : {% twitter oembed … %} cf https://github.com/rob-murray/jekyll-twitter-plugin
$text = preg_replace_callback(
"/<blockquote class=\"twitter-tweet(.*)(?<!<\/blockquote>)<\/blockquote>/u",
function($match) {
return preg_replace("/.*<a href=\"(https:\/\/twitter.com\/[^\/]+\/status(es)?\/[^\"]+)\"[^>]*>[^<]+<\/a>$/u", "{% twitter oembed $1 %}", $match[1]);
},
$text
);
$text = preg_replace("/<script (async )?src=\"\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>/u", "", $text);
return $text;
}
function spip2markdown_nettoyer($text) {
$text = preg_replace("/(^\n+|\n+$)/u", "", $text);
$text = preg_replace("/<\/?CENTER>/ui", "", $text);
return $text;
}