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Document the internal link syntax.

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Next up: Testing it all I think!
This commit is contained in:
Starbeamrainbowlabs 2019-01-05 17:48:27 +00:00
parent 76263f770c
commit ba324ed814
Signed by: sbrl
GPG key ID: 1BE5172E637709C2
4 changed files with 91 additions and 37 deletions
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26
docs/06.5-Interwiki-Links.md Normal file
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@ -0,0 +1,26 @@
# Inter-wiki Links
Pepperminty Wiki, as of v0.18, supports _inter-wiki links_. Such a link sends the user to another wiki elsewhere on the internet. This is configured via the `interwiki_index_location` setting, which should point to a CSV file (either as a file path or an absolute URL) that specifies the wikis that can be linked to. Here are some example inter-wiki links:
```markdown
- [[another_wiki:Apples]]
- [[trees:Apple Trees]]
- In the [[history:The Great Rainforest|rainforest]], lots of trees can be found.
- .... Text text text [[any prefix here:page name|Display text]] text text text ....
```
Note that the automatic page name correction doesn't work with inter-wiki links, so you'll need to get the casing exactly right (try using the vertical-bar `|` display text feature if you want to the display text to use a different casing to the actual page name.
The CSV file format is best explained with an example:
```csv
Name,Prefix,Root URL
Another Wiki,another_wiki,https://wiki.example.com/?page=%s
Tree Field Guide,trees,https://trees.bobsrockets.io/wiki/%s
History Wiki,history,https://history.sanssatellites.co.uk/#%s
Wiki Display Name,internal link prefix,url with %s in place of page name
Apt Link,apt,apt://%s
```
The top line is a header and is discarded by _Pepperminty Wiki_ (so you can put anything you like here).
The url can be any URI supported by the user's browser. The string `%s` will be replaced with the (url encoded) page name. To this end, you can use this feature for _any_ external service you like - it doesn't have to be a Pepperminty Wiki installation (or even a wiki at all)!

2
modules/feature-interwiki-links.php
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@ -96,7 +96,7 @@ function interwiki_get_pagename_url($interwiki_pagename) {
[$prefix, $pagename] = interwiki_pagename_parse($interwiki_pagename);
return str_replace(
"{{page_name}}", rawurlencode($pagename),
"%s", rawurlencode($pagename),
$interwiki_def->root_url
);
}

82
modules/parser-parsedown.php
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@ -446,67 +446,95 @@ class PeppermintParsedown extends ParsedownExtra
{
global $pageindex, $env;
if(preg_match('/^\[\[([^\]]*)\]\]([^\s!?",;.()\[\]{}*=+\/]*)/u', $fragment["text"], $matches))
{
$linkPage = trim($matches[1]);
$display = $linkPage . trim($matches[2]);
if(preg_match('/^\[\[([^\]]*)\]\]([^\s!?",;.()\[\]{}*=+\/]*)/u', $fragment["text"], $matches)) {
// 1: Parse parameters out
// -------------------------------
$link_page = trim($matches[1]);
$display = $link_page . trim($matches[2]);
if(strpos($matches[1], "|") !== false || strpos($matches[1], "¦") !== false)
{
// We have a bar character
$parts = preg_split("/\\||¦/", $matches[1], 2);
$linkPage = trim($parts[0]); // The page to link to
$link_page = trim($parts[0]); // The page to link to
$display = trim($parts[1]); // The text to display
}
$hashCode = "";
if(strpos($linkPage, "#") !== false)
// 2: Parse the hash out
// -------------------------------
$hash_code = "";
if(strpos($link_page, "#") !== false)
{
// We want to link to a subsection of a page
$hashCode = substr($linkPage, strpos($linkPage, "#") + 1);
$linkPage = substr($linkPage, 0, strpos($linkPage, "#"));
$hash_code = substr($link_page, strpos($link_page, "#") + 1);
$link_page = substr($link_page, 0, strpos($link_page, "#"));
// If $linkPage is empty then we want to link to the current page
if(strlen($linkPage) === 0)
$linkPage = $env->page;
// If $link_page is empty then we want to link to the current page
if(strlen($link_page) === 0)
$link_page = $env->page;
}
// 3: Page name auto-correction
// -------------------------------
$is_interwiki_link = module_exists("feature-interwiki-links") && is_interwiki_link($link_page);
if(!is_interwiki_link && empty($pageindex->$link_page)) {
// If the page doesn't exist, check varying different
// capitalisations to see if it exists under some variant.
if(empty($pageindex->$linkPage))
{
if(!empty($pageindex->{ucfirst($linkPage)}))
$linkPage = ucfirst($linkPage);
else if(!empty($pageindex->{ucwords($linkPage)}))
$linkPage = ucwords($linkPage);
if(!empty($pageindex->{ucfirst($link_page)}))
$link_page = ucfirst($link_page);
else if(!empty($pageindex->{ucwords($link_page)}))
$link_page = ucwords($link_page);
}
// Construct the full url
$linkUrl = str_replace(
"%s", rawurlencode($linkPage),
// 4: Construct the full url
// -------------------------------
$link_url = null;
// If it's an interwiki link, then handle it as such
if($is_interwiki_link)
$link_url = interwiki_get_pagename_url($link_page);
// If it isn't (or it failed), then try it as a normal link instead
if(empty($link_url)) {
$link_url = str_replace(
"%s", rawurlencode($link_page),
$this->internalLinkBase
);
// We failed to handle it as an interwiki link, so we should
// tell everyone that
$is_interwiki_link = false;
}
if(strlen($hashCode) > 0)
$linkUrl .= "#$hashCode";
if(strlen($hash_code) > 0)
$link_url .= "#$hash_code";
// 6: Result encoding
// -------------------------------
$result = [
"extent" => strlen($matches[0]),
"element" => [
"name" => "a",
"text" => $display,
"attributes" => [
"href" => $linkUrl
"href" => $link_url
]
]
];
if(empty($pageindex->{makepathsafe($linkPage)}))
$result["element"]["attributes"]["class"] = "redlink";
// Attach some useful classes based on how we handled it
$class_list = [];
// Interwiki links can never be redlinks
if(!$is_interwiki_link && empty($pageindex->{makepathsafe($link_page)}))
$class_list[] = "redlink";
if($is_interwiki_link)
$class_list[] = "interwiki_link";
$result["element"]["attributes"]["class"] = implode(" ", $class_list);
return $result;
}
return;
}
/*

2
peppermint.guiconfig.json
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@ -18,7 +18,7 @@
"anonedits": { "type": "checkbox", "description": "Whether users who aren't logged in are allowed to edit your wiki.", "default": false },
"maxpagesize": { "type": "number", "description": "The maximum page size in characters.", "default": 135000 },
"parser": { "type": "text", "description": "The parser to use when rendering pages. Defaults to an extended version of parsedown (http://parsedown.org/)", "default": "parsedown" },
"interwiki_index_location": { "type": "url", "description": "The location to find the interwiki wiki definition file, which contains a list of wikis along with their names, prefixes, and root urls. May be a URL, or simply a file path - as it's passed to file_get_contents()." },
"interwiki_index_location": { "type": "url", "description": "The location to find the interwiki wiki definition file, which contains a list of wikis along with their names, prefixes, and root urls. May be a URL, or simply a file path - as it's passed to file_get_contents().", "default": null },
"clean_raw_html": { "type": "checkbox", "description": "Whether page sources should be cleaned of HTML before rendering. It is STRONGLY recommended that you keep this option turned on.", "default": true},
"enable_math_rendering": { "type": "checkbox", "description": "Whether to enable client side rendering of mathematical expressions with MathJax (https://www.mathjax.org/). Math expressions should be enclosed inside of dollar signs ($). Turn off if you don't use it.", "default": true},
"users": { "type": "usertable", "description": "An array of usernames and passwords - passwords should be hashed with password_hash() (the hash action can help here)", "default": {