Examples of org.stringtemplate.v4.ST

org.stringtemplate.v4.ST
An instance of the StringTemplate. It consists primarily of a reference to its implementation (shared among all instances) and a hash table of attributes. Because of dynamic scoping, we also need a reference to any enclosing instance. For example, in a deeply nested template for an HTML page body, we could still reference the title attribute defined in the outermost page template. To use templates, you create one (usually via STGroup) and then inject attributes using add(). To render its attacks, use render().

    String templates =
      "t(x,y) ::= \"<u()>\"\n"+
      "u() ::= \"<x><y>\"\n";
    Misc.writeFile(tmpdir, "t.stg", templates);
    STGroup group = new STGroupFile(tmpdir+"/"+"t.stg");
    ST st = group.getInstanceOf("t");
    st.add("x", 1);
    st.add("y", 2);


    for (int i = 0; i < reps; i++) {
      st.render();
    }
  }

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      "u15(a) ::= \"<u16({eh})>\"\n"+
      "u16(a) ::= \"<z({eh})>\"\n"+
      "z(a) ::= \"<x><y>\"\n";
    Misc.writeFile(tmpdir, "t.stg", templates);
    STGroup group = new STGroupFile(tmpdir+"/"+"t.stg");
    ST st = group.getInstanceOf("t");
    st.add("x", 1);
    st.add("y", 2);


    for (int i = 0; i < reps; i++) {
      st.render();
    }
  }

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  }


  public void timeSingle(int reps) {
    String template =
      "A smallish string to write out";
    ST st = new ST(template);
    for (int i = 0; i < reps; i++) {
      st.render();
    }
  }

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      st.render();
    }
  }


  public void timeSingleBigger(int reps) {
    ST st = new ST(bigTemplate);
    for (int i = 0; i < reps; i++) {
      st.render();
    }
  }

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      STGroup group = new STGroup();
//      System.out.println("running "+test);
      group.defineTemplate("t", "x", "<x>");
      group.defineTemplate("u", "x", "<x>");
      group.defineTemplate("test", "x", test.template);
      ST st = group.getInstanceOf("test");
      if ( test.x!=UNDEF ) {
        st.add("x", test.x);
      }
      String result = st.render();
      if ( !result.equals(test.expecting) ) {
        test.result = result;
        failed.add(test);
      }
    }

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  @Test public void testSeparatorWithNullFirstValue() throws Exception {
    STGroup group = new STGroup();
    group.defineTemplate("test", "name", "hi <name; separator=\", \">!");
    ST st = group.getInstanceOf("test");
    st.add("name", null); // null is added to list, but ignored in iteration
    st.add("name", "Tom");
    st.add("name", "Sumana");
    String expected = "hi Tom, Sumana!";
    String result = st.render();
    assertEquals(expected, result);
  }

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  @Test public void testTemplateAppliedToNullIsEmpty() throws Exception {
    STGroup group = new STGroup();
    group.defineTemplate("test", "name", "<name:t()>");
    group.defineTemplate("t", "x", "<x>");
    ST st = group.getInstanceOf("test");
    st.add("name", null);
    String expected = "";
    String result = st.render();
    assertEquals(expected, result);
  }

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  @Test public void testTemplateAppliedToMissingValueIsEmpty() throws Exception {
    STGroup group = new STGroup();
    group.defineTemplate("test", "name", "<name:t()>");
    group.defineTemplate("t", "x", "<x>");
    ST st = group.getInstanceOf("test");
    String expected = "";
    String result = st.render();
    assertEquals(expected, result);
  }

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  }


    @Test public void testSeparatorWithNull2ndValue() throws Exception {
        STGroup group = new STGroup();
        group.defineTemplate("test", "name", "hi <name; separator=\", \">!");
        ST st = group.getInstanceOf("test");
        st.add("name", "Ter");
        st.add("name", null);
        st.add("name", "Sumana");
        String expected = "hi Ter, Sumana!";
        String result = st.render();
        assertEquals(expected, result);
    }

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    }


    @Test public void testSeparatorWithNullLastValue() throws Exception {
        STGroup group = new STGroup();
        group.defineTemplate("test", "name", "hi <name; separator=\", \">!");
        ST st = group.getInstanceOf("test");
        st.add("name", "Ter");
        st.add("name", "Tom");
        st.add("name", null);
        String expected = "hi Ter, Tom!";
        String result = st.render();
        assertEquals(expected, result);
    }

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