Language injections let you work with pieces of code in other languages embedded in your code. When you inject a language (such as HTML, CSS, XML, RegExp, and so on) into a string literal, you get comprehensive coding assistance for the injected code even though it is not the main language of your project.
warning
Make sure that the IntelliLang plugin is enabled before you start working with language injections.
Temporarily inject a language
By default, the IDE injects a language temporarily. It means that if you delete the embedded element, the injection will be lost as well.
Place the caret inside the string literal, tag, or attribute, in which you want to inject a language and press AltEnter (or use the intention action icon ).
Select Inject language or reference and choose the language you want to inject.
tip
If the Inject language or reference intention action is not available by default, go to Settings (CtrlAlt0S) | Editor | Intentions and select the Inject language or reference checkbox in the Language injection section.
Use language injection comments
Before the target string literal, type the following comment:
// language=<language_ID>
For comments, use the syntax of the language you want to inject. Language IDs are generally intuitive, for example, SQL, RegExp, XML, HTML.
You can also learn language IDs in settings. Press CtrlAlt0S to open settings and then select Editor | language Injections. Double-click an injection rule for a language; the language ID is specified in the ID field.
Open an injection editor
Place the caret within the injected code piece and press AltEnter (or use the intention action icon ).
Select Edit <language ID> Fragment.
GoLand will open a dedicated editor section for editing the code with the injected language. This editor provides full coding assistance, including code completion, inspections, intentions and code style actions.
Cancel injections
Place the caret at the code fragment and press AltEnter (or use the intention action icon ).
Select Uninject language or reference.
To cancel a language injection, you can also delete the injection comment or annotation.
Disable the intention action bulb icon
Do the following to hide the intention action icon in the editor:
Press CtrlAlt0S to open settings and then select Editor | General | Appearance.
Clear the Show intention bulb checkbox.
Apply the changes and close the dialog.
Configure rules for automatic injections
In GoLand, there is a set of predefined rules according to which the IDE automatically injects languages in certain places in your code.
You can configure language injection rules on the Editor | Language Injections settings page CtrlAlt0S.
All pre-defined injection rules are configured for the Built-in scope. In other words, they are global (and therefore available in all GoLand projects). Custom rules can be configured for the IDE or for one project only. To change the scope of custom injections, use the .
To share a custom rule through VCS, move it to the Project scope using the corresponding option on the toolbar. By doing so, you will create a new file in the .idea directory named IntelliLang.xml with your custom rules that you can place under version control.
If you don’t use a VCS, you can share your rules by exporting them to XML files (click on the toolbar) and then importing them to another project.
To configure custom injection rules, click to add a new rule, or copy a predefined rule and change its settings.
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