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linkify/lib/auto_linker.ex
2019-02-05 18:22:51 +07:00

56 lines
2.3 KiB
Elixir

defmodule AutoLinker do
@moduledoc """
Create url links from text containing urls.
Turns an input string like `"Check out google.com"` into
`Check out "<a href='http://google.com' target='_blank' rel='noopener noreferrer'>google.com</a>"`
## Examples
iex> AutoLinker.link("google.com")
"<a href='http://google.com' class='auto-linker' target='_blank' rel='noopener noreferrer'>google.com</a>"
iex> AutoLinker.link("google.com", new_window: false, rel: false)
"<a href='http://google.com' class='auto-linker'>google.com</a>"
iex> AutoLinker.link("google.com", new_window: false, rel: false, class: false)
"<a href='http://google.com'>google.com</a>"
iex> AutoLinker.link("[Google](http://google.com)", markdown: true, new_window: false, rel: false, class: false)
"<a href='http://google.com'>Google</a>"
iex> AutoLinker.link("[Google Search](http://google.com)", markdown: true)
"<a href='http://google.com' class='auto-linker' target='_blank' rel='noopener noreferrer'>Google Search</a>"
"""
import AutoLinker.Parser
@doc """
Auto link a string.
Options:
* `class: "auto-linker"` - specify the class to be added to the generated link. false to clear
* `rel: "noopener noreferrer"` - override the rel attribute. false to clear
* `new_window: true` - set to false to remove `target='_blank'` attribute
* `scheme: false` - Set to true to link urls with schema `http://google`
* `truncate: false` - Set to a number to truncate urls longer then the number. Truncated urls will end in `..`
* `strip_prefix: true` - Strip the scheme prefix
* `exclude_class: false` - Set to a class name when you don't want urls auto linked in the html of the give class
* `exclude_id: false` - Set to an element id when you don't want urls auto linked in the html of the give element
* `exclude_patterns: ["```"] - Don't link anything between the the pattern
* `markdown: false` - link markdown style links
Each of the above options can be specified when calling `link(text, opts)`
or can be set in the `:auto_linker's configuration. For example:
config :auto_linker,
class: false,
new_window: false
Note that passing opts to `link/2` will override the configuration settings.
"""
def link(text, opts \\ []) do
parse(text, opts)
end
end