Add support for the \subfix command

CHANGELOG.md

@@ -3,6 +3,8 @@
 ## [Unreleased]
 
 ### Added
+* Support references in \subfix command
+* Provide autocompletion for all relevant directories when using subfiles
 
 ### Fixed
 

src/nl/hannahsten/texifyidea/completion/LatexCompletionContributor.kt

@@ -97,7 +97,7 @@ open class LatexCompletionContributor : CompletionContributor() {
             .inside(LatexRequiredParam::class.java)
             .withPattern("File name completion pattern") { psiElement, processingContext ->
                 val command = getParentOfType(psiElement, LatexCommands::class.java) ?: return@withPattern false
-                val name = command.commandToken.text
+                val name = command.name ?: return@withPattern false
                 val cmd = LatexRegularCommand[name.substring(1)] ?: return@withPattern false
 
                 val args = cmd.first().getArgumentsOf(RequiredFileArgument::class)
@@ -117,7 +117,7 @@ open class LatexCompletionContributor : CompletionContributor() {
             .inside(LatexRequiredParam::class.java)
             .withPattern("Folder name completion pattern") { psiElement, processingContext ->
                 val command = getParentOfType(psiElement, LatexCommands::class.java) ?: return@withPattern false
-                val name = command.commandToken.text
+                val name = command.name ?: return@withPattern false
                 val cmd = LatexRegularCommand[name.substring(1)] ?: return@withPattern false
 
                 val args = cmd.first().getArgumentsOf(RequiredFolderArgument::class)

src/nl/hannahsten/texifyidea/completion/pathcompletion/LatexPathProviderBase.kt

@@ -19,7 +19,7 @@ import nl.hannahsten.texifyidea.completion.handlers.LatexReferenceInsertHandler
 import nl.hannahsten.texifyidea.lang.commands.RequiredFileArgument
 import nl.hannahsten.texifyidea.psi.LatexRequiredParam
 import nl.hannahsten.texifyidea.util.expandCommandsOnce
-import nl.hannahsten.texifyidea.util.files.findRootFile
+import nl.hannahsten.texifyidea.util.files.findRootFiles
 import nl.hannahsten.texifyidea.util.files.isLatexFile
 import nl.hannahsten.texifyidea.util.replaceAfterFrom
 import java.io.File
@@ -205,8 +205,8 @@ abstract class LatexPathProviderBase : CompletionProvider<CompletionParameters>(
             val baseFile = this.originalFile.virtualFile
 
             if (this.originalFile.isLatexFile()) {
-                this.originalFile.findRootFile().containingDirectory?.virtualFile?.apply {
-                    resultList.add(this)
+                this.originalFile.findRootFiles().mapNotNull { it.containingDirectory?.virtualFile }.forEach {
+                    resultList.add(it)
                 }
             }
             else resultList.add(baseFile.parent)

src/nl/hannahsten/texifyidea/lang/commands/LatexGenericRegularCommand.kt

@@ -287,6 +287,7 @@ enum class LatexGenericRegularCommand(
     STRETCH("stretch", "factor".asRequired()),
     SUBFILE("subfile", RequiredFileArgument("sourcefile", true, false, "tex"), dependency = LatexPackage.SUBFILES),
     SUBFILEINCLUDE("subfileinclude", RequiredFileArgument("sourcefile", true, false, "tex"), dependency = LatexPackage.SUBFILES),
+    SUBFIX("subfix", RequiredFileArgument("file", true, false, "tex"), dependency = LatexPackage.SUBFILES),
     SUBIMPORT("subimport", RequiredFolderArgument("relative path"), RequiredFileArgument("filename", false, false, "tex"), dependency = LatexPackage.IMPORT),
     SUBINCLUDEFROM("subincludefrom", RequiredFolderArgument("relative path"), RequiredFileArgument("filename", false, false, "tex"), dependency = LatexPackage.IMPORT),
     SUBINPUTFROM("subinputfrom"),

src/nl/hannahsten/texifyidea/util/parser/LatexCommandsImplMixinUtil.kt

@@ -50,6 +50,11 @@ fun LatexCommands.getFileArgumentsReferences(): List<InputFileReference> {
                 it.shiftRight(requiredParameter.textOffset - this.textOffset)
             }
         }
+        else if (requiredParameter.firstChildOfType(LatexParameterText::class)?.children?.size == 1 && requiredParameter.firstChildOfType(LatexCommands::class) != null) {
+            // Special case if there is a single command instead of text, we ignore it. Example: \subfix from the subfiles package, can be ignored for our purposes
+            val newRequiredParameter = requiredParameter.firstChildOfType(LatexCommands::class)?.requiredParameters()?.firstOrNull() ?: requiredParameter
+            listOf(newRequiredParameter.textRange.shrink(1).shiftLeft(this.textOffset))
+        }
         else {
             listOf(requiredParameter.textRange.shrink(1).shiftLeft(this.textOffset))
         }

test/nl/hannahsten/texifyidea/reference/InputFileReferenceTest.kt

@@ -28,4 +28,10 @@ class InputFileReferenceTest : BasePlatformTestCase() {
         myFixture.renameElementAtCaret("newmain.tex")
         myFixture.checkResultByFile("simplesubfile/subdir/onedown-after.tex")
     }
+
+    fun testRenameSubfix() {
+        myFixture.configureByFiles("subfix/main.tex", "subfix/subdir2/chapter2.tex", "subfix/subdir2/references.bib")
+        myFixture.renameElementAtCaret("newreferences.bib")
+        myFixture.checkResultByFile("subfix/main-after.tex")
+    }
 }

test/resources/reference/subfix/main-after.tex

@@ -0,0 +1,7 @@
+\documentclass[11pt]{report}
+\usepackage{subfiles}
+\usepackage{biblatex}
+\addbibresource{\subfix{subdir2/newreferences.bib}}
+\begin{document}
+    \subfile{subdir2/chapter2.tex}
+\end{document}

test/resources/reference/subfix/main.tex

@@ -0,0 +1,7 @@
+\documentclass[11pt]{report}
+\usepackage{subfiles}
+\usepackage{biblatex}
+\addbibresource{\subfix{subdir2/refer<caret>ences.bib}}
+\begin{document}
+    \subfile{subdir2/chapter2.tex}
+\end{document}

test/resources/reference/subfix/subdir2/chapter2.tex

@@ -0,0 +1,6 @@
+\documentclass[../main.tex]{subfiles}
+\begin{document}
+    \chapter{Some 2}
+    I~\cite{tectonic}
+    \printbibliography
+\end{document}

test/resources/reference/subfix/subdir2/references.bib

@@ -0,0 +1,6 @@
+@online{tectonic,
+    title = {The Tectonic Typesetting System — The Tectonic Typesetting System},
+    url = {https://tectonic-typesetting.github.io/en-US/index.html},
+    urldate = {2018-12-27},
+}
+