Examples of org.stringtemplate.v4.STGroup

org.stringtemplate.v4.STGroup
A directory or directory tree of .st template files and/or group files. Individual template files contain formal template definitions. In a sense, it's like a single group file broken into multiple files, one for each template. ST v3 had just the pure template inside, not the template name and header. Name inside must match filename (minus suffix).


  @Test public void testPassThruWithDefaultValueThatLacksDefinitionAbove() throws Exception {
    String templates =
      "a(x) ::= \"<b(...)>\"\n" + // should not set y when it sees "no definition" from above
      "b(x,y={99}) ::= \"<x><y>\"\n";
    STGroup group = new STGroupString(templates);
    ST a = group.getInstanceOf("a");
    a.add("x", "x");
    String expected = "x99";
    String result = a.render();
    assertEquals(expected, result);
  }

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  @Test public void testPassThruPartialArgs() throws Exception {
    String templates =
      "a(x,y) ::= \"<b(y={99},...)>\"\n" +
      "b(x,y) ::= \"<x><y>\"\n";
    STGroup group = new STGroupString(templates);
    ST a = group.getInstanceOf("a");
    a.add("x", "x");
    a.add("y", "y");
    String expected = "x99";
    String result = a.render();
    assertEquals(expected, result);

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  @Test public void testPassThruNoMissingArgs() throws Exception {
    String templates =
      "a(x,y) ::= \"<b(y={99},x={1},...)>\"\n" +
      "b(x,y) ::= \"<x><y>\"\n";
    STGroup group = new STGroupString(templates);
    ST a = group.getInstanceOf("a");
    a.add("x", "x");
    a.add("y", "y");
    String expected = "199";
    String result = a.render();
    assertEquals(expected, result);

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    String result = a.render();
    assertEquals(expected, result);
  }


    @Test public void testDefineTemplate() throws Exception {
        STGroup group = new STGroup();
        group.defineTemplate("inc", "x", "<x>+1");
        group.defineTemplate("test", "name", "hi <name>!");
        ST st = group.getInstanceOf("test");
        st.add("name", "Ter");
        st.add("name", "Tom");
        st.add("name", "Sumana");
        String expected =
            "hi TerTomSumana!";

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        String result = st.render();
        assertEquals(expected, result);
    }


  @Test public void testMap() throws Exception {
    STGroup group = new STGroup();
    group.defineTemplate("inc", "x", "[<x>]");
    group.defineTemplate("test", "name", "hi <name:inc()>!");
    ST st = group.getInstanceOf("test");
    st.add("name", "Ter");
    st.add("name", "Tom");
    st.add("name", "Sumana");
    String expected =
      "hi [Ter][Tom][Sumana]!";

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    String result = st.render();
    assertEquals(expected, result);
  }


  @Test public void testIndirectMap() throws Exception {
    STGroup group = new STGroup();
    group.defineTemplate("inc", "x", "[<x>]");
    group.defineTemplate("test", "t,name", "<name:(t)()>!");
    ST st = group.getInstanceOf("test");
    st.add("t", "inc");
    st.add("name", "Ter");
    st.add("name", "Tom");
    st.add("name", "Sumana");
    String expected =

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        String templates =
            "d ::= [\"foo\":\"bold\"]\n" +
            "test(name) ::= \"<name:(d.foo)()>\"\n" +
            "bold(x) ::= <<*<x>*>>\n";
        writeFile(tmpdir, "t.stg", templates);
        STGroup group = new STGroupFile(tmpdir+"/"+"t.stg");
        ST st = group.getInstanceOf("test");
        st.add("name", "Ter");
        st.add("name", "Tom");
        st.add("name", "Sumana");
        String expected = "*Ter**Tom**Sumana*";
        String result = st.render();

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        String result = st.render();
        assertEquals(expected, result);
    }


    @Test public void testParallelMap() throws Exception {
        STGroup group = new STGroup();
        group.defineTemplate("test", "names,phones", "hi <names,phones:{n,p | <n>:<p>;}>");
        ST st = group.getInstanceOf("test");
        st.add("names", "Ter");
        st.add("names", "Tom");
        st.add("names", "Sumana");
        st.add("phones", "x5001");
        st.add("phones", "x5002");

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        String result = st.render();
        assertEquals(expected, result);
    }


    @Test public void testParallelMapWith3Versus2Elements() throws Exception {
        STGroup group = new STGroup();
        group.defineTemplate("test", "names,phones", "hi <names,phones:{n,p | <n>:<p>;}>");
        ST st = group.getInstanceOf("test");
        st.add("names", "Ter");
        st.add("names", "Tom");
        st.add("names", "Sumana");
        st.add("phones", "x5001");
        st.add("phones", "x5002");

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        String result = st.render();
        assertEquals(expected, result);
    }


  @Test public void testParallelMapThenMap() throws Exception {
    STGroup group = new STGroup();
    group.defineTemplate("bold", "x", "[<x>]");
    group.defineTemplate("test", "names,phones",
               "hi <names,phones:{n,p | <n>:<p>;}:bold()>");
    ST st = group.getInstanceOf("test");
    st.add("names", "Ter");
    st.add("names", "Tom");
    st.add("names", "Sumana");
    st.add("phones", "x5001");
    st.add("phones", "x5002");

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