added LaTex template for .tex files in LatexMojo

eo-maven-plugin/src/main/java/org/eolang/maven/LatexMojo.java

@@ -29,6 +29,7 @@
 import java.nio.file.Path;
 import org.apache.maven.plugins.annotations.LifecyclePhase;
 import org.apache.maven.plugins.annotations.Mojo;
+import org.eolang.maven.latex.LatexTemplate;
 import org.eolang.maven.tojos.ForeignTojo;
 import org.eolang.maven.util.Home;
 
@@ -42,10 +43,6 @@
  *  we need to generate summary in universe.tex file,
  *  which will include all generated objects. And this file
  *  should be a standalone compilable document.
- * @todo #1206:30min Generate a standalone compilable document from
- *  each of the file in "latex" directory. All of this files are already
- *  ".tex" files. But they are contain only the EO code without LaTex
- *  structure.
  */
 @Mojo(
     name = "latex",
@@ -62,7 +59,7 @@ public final class LatexMojo extends SafeMojo {
     /**
      * Latex extension (.tex).
      */
-    public static final String EXT = ".tex";
+    public static final String EXT = "tex";
 
     /**
      * Truncated the last part of the filename,
@@ -94,7 +91,9 @@ void exec() throws IOException {
                 dir.resolve(LatexMojo.DIR), LatexMojo.EXT
             );
             new Home(dir).save(
-                new XMLDocument(file).nodes("/program/listing").get(0).toString(),
+                new LatexTemplate(
+                    new XMLDocument(file).nodes("/program/listing").get(0).toString()
+                ).asString(),
                 dir.relativize(target)
             );
             Logger.info(

eo-maven-plugin/src/main/java/org/eolang/maven/latex/LatexTemplate.java

@@ -0,0 +1,69 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016-2023 Objectionary.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.eolang.maven.latex;
+
+import org.cactoos.io.ResourceOf;
+import org.cactoos.text.TextOf;
+import org.cactoos.text.UncheckedText;
+
+/**
+ * Latex template. Generates the LaTex template from the code
+ * in LaTex notation as a standalone compilable document.
+ *
+ * @since 0.30
+ * @todo #2067:30min We need to refactor LatexTemplate class.
+ *  And to remove redundant parts in the code, like DOM variables and
+ *  license header. E.g.: "<listing># The MIT License (MIT)...</listing>".
+ */
+public final class LatexTemplate {
+
+    /**
+     * The code.
+     */
+    private final String code;
+
+    /**
+     * Ctor.
+     * @param code The code.
+     */
+    public LatexTemplate(final String code) {
+        this.code = code;
+    }
+
+    /**
+     * Generates the template from the code from
+     * resources/latex-template.txt.
+     * @return The generated template with the code as string.
+     */
+    public String asString() {
+        return String.format(
+            new UncheckedText(
+                new TextOf(
+                    new ResourceOf("org/eolang/maven/latex/latex-template.txt")
+                )
+            ).asString(),
+            this.code
+        );
+    }
+}

eo-maven-plugin/src/main/java/org/eolang/maven/latex/package-info.java

@@ -0,0 +1,29 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016-2023 Objectionary.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+/**
+ * LaTex.
+ *
+ * @since 0.30
+ */
+package org.eolang.maven.latex;

eo-maven-plugin/src/main/resources/org/eolang/maven/latex/latex-template.txt

@@ -0,0 +1,7 @@
+\documentclass{article}
+\usepackage{ffcode}
+\begin{document}
+\begin{ffcode}
+%s
+\end{ffcode}
+\end{document}

eo-maven-plugin/src/test/java/org/eolang/maven/latex/LatexTemplateTest.java

@@ -0,0 +1,59 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016-2023 Objectionary.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.eolang.maven.latex;
+
+import org.hamcrest.MatcherAssert;
+import org.hamcrest.Matchers;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Test case for {@link LatexTemplate}.
+ *
+ * @since 0.30
+ */
+class LatexTemplateTest {
+
+    /**
+     * Check the full template.
+     */
+    @Test
+    void generatesFullTemplate() {
+        MatcherAssert.assertThat(
+            new LatexTemplate(
+                "+package f\n[args] > main\n  stdout \"Hello!\""
+            ).asString(),
+            Matchers.stringContainsInOrder(
+                "\\documentclass{article}",
+                "\\usepackage{ffcode}",
+                "\\begin{document}",
+                "\\begin{ffcode}",
+                "+package f",
+                "[args] > main",
+                "  stdout \"Hello!\"",
+                "\\end{ffcode}",
+                "\\end{document}"
+            )
+        );
+    }
+}

eo-maven-plugin/src/test/java/org/eolang/maven/latex/package-info.java

@@ -0,0 +1,29 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016-2023 Objectionary.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+/**
+ * Test cases for {@link org.eolang.maven.latex} package.
+ *
+ * @since 0.30
+ */
+package org.eolang.maven.latex;