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< > BotCompany Repo | #281 // GroupingTest.java

Java source code

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package ai.d.ai07;

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import drjava.util.F;



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import drjava.util.ListUtil;



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import drjava.util.StringUtil;



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import structcom.sc03.PStringLit;



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public class GroupingTest {



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  public static void main(String[] args) {



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    String poem =



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      "for each line in file:\n" +



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      "  compare file \"/bla1/$file\" to file \"/bla2/$file\"";



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    String groupedPoem =



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      "[[for] [each] [line] [in] [file]:]\n" +



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      "[[  ][[compare] [file] [\"/bla1/$file\"] [to] [file] [\"/bla2/$file\"]]]";



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    group(poem, "lines");



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    group(poem, "linesWithIndent");



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    group(poem, "words");



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    group(poem, "stringLits");



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    group(poem, "words_skipGrouped");



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    String grouped = group(poem, "stringLits+words_skipGrouped+linesWithIndent");



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    System.out.println("Expected =>");



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    System.out.println(StringUtil.indent(2, groupedPoem));



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  }



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  private static String group(String poem, String operator) {



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    try {



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      System.out.println(operator + " =>");



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      String grouped = doGroup(poem, operator);



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      System.out.println(StringUtil.indent(2, grouped));



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      return grouped;



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    } catch (Throwable e) {



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      System.out.println(operator + "  ERROR: " + e);



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      return "";



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    }



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  }



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  private static String doGroup(String poem, String operator) {



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    String[] split = operator.split("\\+");



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    if (split.length > 1) {



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      for (String op : split) poem = doGroup(poem, op);



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      return poem;



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    }



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    if (operator.equals("lines"))



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      return groupLines(poem);



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    if (operator.equals("linesWithIndent"))



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      return groupLinesWithIndent(poem);



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    if (operator.equals("words"))



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      return groupWords(poem);



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    if (operator.equals("stringLits"))



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      return groupStringLits(poem);



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    if (operator.equals("words_skipGrouped"))



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      return groupWords_skipGrouped(poem);



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    throw new RuntimeException("Unknown operator '" + operator + "'");



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  }



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  private static String groupLines(String poem) {



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    return StringUtil.join("\n", ListUtil.map(StringUtil.toLines(poem), new F<String, String>() {



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      public String _(String s) {



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        return "[" + s + "]";



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      }



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    }));



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  }



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  private static String groupLinesWithIndent(String poem) {



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    return StringUtil.join("\n", ListUtil.map(StringUtil.toLines(poem), new F<String, String>() {



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      public String _(String s) {



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        if (s.startsWith("  "))



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          return "[[  ][" + s.substring(2) + "]]";



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        else



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          return "[" + s + "]";



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      }



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    }));



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  }



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  private static String groupWords(String poem) {



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    return groupByPredicate(poem, new F<Character, Boolean>() {



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      public Boolean _(Character c) {



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        return Character.isLetterOrDigit(c);



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      }



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    });



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  }



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  private static String groupWords_skipGrouped(String poem) {



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    return groupByPredicate_skipGrouped(poem, new F<Character, Boolean>() {



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      public Boolean _(Character c) {



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        return Character.isLetterOrDigit(c);



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      }



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    });



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  }



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  private static String groupByPredicate(String poem, F<Character, Boolean> pred) {



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    StringBuilder buf = new StringBuilder();



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    for (int i = 0; i < poem.length(); i++) {



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      char c = poem.charAt(i);



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      if (!pred._(c))



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        buf.append(c);



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      else {



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        int j = i+1;



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        while (j < poem.length() && pred._(poem.charAt(j)))



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          ++j;



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        buf.append("[" + poem.substring(i, j) + "]");



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        i = j-1;



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      }



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    }



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    return buf.toString();



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  }



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  private static String groupByPredicate_skipGrouped(String poem, F<Character, Boolean> pred) {



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    StringBuilder buf = new StringBuilder();



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    for (int i = 0; i < poem.length(); i++) {



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      char c = poem.charAt(i);



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      if (c == '[') {



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        int j = findEndOfGroup(poem, i); // TODO: This is unreliable



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        buf.append(poem.substring(i, j));



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        i = j-1;



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      } else if (!pred._(c))



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        buf.append(c);



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      else {



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        int j = i+1;



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        while (j < poem.length() && pred._(poem.charAt(j)))



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          ++j;



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        buf.append("[" + poem.substring(i, j) + "]");



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        i = j-1;



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      }



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    }



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    return buf.toString();



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  }



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  private static int findEndOfGroup(String poem, int i) {



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    while (i < poem.length() && poem.charAt(i) != ']')



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      ++i;



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    return i;



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  }



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  private static String groupStringLits(String poem) {



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    StringBuilder buf = new StringBuilder();



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    for (int i = 0; i < poem.length(); i++) {



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      char c = poem.charAt(i);



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      if (c == '"') {



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        PStringLit parser = new PStringLit();



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        parser.setText(poem, i);



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        parser.parse();



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        int j = parser.getIdx();



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        buf.append("[" + poem.substring(i, j) + "]");



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        i = j-1;



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      } else



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        buf.append(c);



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    }



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    return buf.toString();



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  }



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}




      
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Comments [hide]

	

	ID
	Author/Program
	Comment
	Date
 	

    
135 #1000604 (pitcher)  2015-08-18 00:47:22 


127 #1000610 (pitcher) Edit suggestion:
!636
!629

main {
  static Object androidContext;
  static String programID;

  public static void main(String[] args) throws Exception {
package ai.d.ai07;



import drjava.util.F;

import drjava.util.ListUtil;

import drjava.util.StringUtil;

import structcom.sc03.PStringLit;



public class GroupingTest {

  public static void main(String[] args) {

    String poem =

      "for each line in file:\n" +

      "  compare file \"/bla1/$file\" to file \"/bla2/$file\"";



    String groupedPoem =

      "[[for] [each] [line] [in] [file]:]\n" +

      "[[  ][[compare] [file] [\"/bla1/$file\"] [to] [file] [\"/bla2/$file\"]]]";

    group(poem, "lines");

    group(poem, "linesWithIndent");

    group(poem, "words");

    group(poem, "stringLits");

    group(poem, "words_skipGrouped");

    String grouped = group(poem, "stringLits+words_skipGrouped+linesWithIndent");

    System.out.println("Expected =>");

    System.out.println(StringUtil.indent(2, groupedPoem));

  }



  private static String group(String poem, String operator) {

    try {

      System.out.println(operator + " =>");

      String grouped = doGroup(poem, operator);

      System.out.println(StringUtil.indent(2, grouped));

      return grouped;

    } catch (Throwable e) {

      System.out.println(operator + "  ERROR: " + e);

      return "";

    }

  }



  private static String doGroup(String poem, String operator) {

    String[] split = operator.split("\\+");

    if (split.length > 1) {

      for (String op : split) poem = doGroup(poem, op);

      return poem;

    }



    if (operator.equals("lines"))

      return groupLines(poem);

    if (operator.equals("linesWithIndent"))

      return groupLinesWithIndent(poem);

    if (operator.equals("words"))

      return groupWords(poem);

    if (operator.equals("stringLits"))

      return groupStringLits(poem);

    if (operator.equals("words_skipGrouped"))

      return groupWords_skipGrouped(poem);

    throw new RuntimeException("Unknown operator '" + operator + "'");

  }



  private static String groupLines(String poem) {

    return StringUtil.join("\n", ListUtil.map(StringUtil.toLines(poem), new F<String, String>() {

      public String _(String s) {

        return "[" + s + "]";

      }

    }));

  }



  private static String groupLinesWithIndent(String poem) {

    return StringUtil.join("\n", ListUtil.map(StringUtil.toLines(poem), new F<String, String>() {

      public String _(String s) {

        if (s.startsWith("  "))

          return "[[  ][" + s.substring(2) + "]]";

        else

          return "[" + s + "]";

      }

    }));

  }



  private static String groupWords(String poem) {

    return groupByPredicate(poem, new F<Character, Boolean>() {

      public Boolean _(Character c) {

        return Character.isLetterOrDigit(c);

      }

    });

  }



  private static String groupWords_skipGrouped(String poem) {

    return groupByPredicate_skipGrouped(poem, new F<Character, Boolean>() {

      public Boolean _(Character c) {

        return Character.isLetterOrDigit(c);

      }

    });

  }



  private static String groupByPredicate(String poem, F<Character, Boolean> pred) {

    StringBuilder buf = new StringBuilder();

    for (int i = 0; i < poem.length(); i++) {

      char c = poem.charAt(i);

      if (!pred._(c))

        buf.append(c);

      else {

        int j = i+1;

        while (j < poem.length() && pred._(poem.charAt(j)))

          ++j;

        buf.append("[" + poem.substring(i, j) + "]");

        i = j-1;

      }

    }

    return buf.toString();

  }



  private static String groupByPredicate_skipGrouped(String poem, F<Character, Boolean> pred) {

    StringBuilder buf = new StringBuilder();

    for (int i = 0; i < poem.length(); i++) {

      char c = poem.charAt(i);

      if (c == '[') {

        int j = findEndOfGroup(poem, i); // TODO: This is unreliable

        buf.append(poem.substring(i, j));

        i = j-1;

      } else if (!pred._(c))

        buf.append(c);

      else {

        int j = i+1;

        while (j < poem.length() && pred._(poem.charAt(j)))

          ++j;

        buf.append("[" + poem.substring(i, j) + "]");

        i = j-1;

      }

    }

    return buf.toString();

  }



  private static int findEndOfGroup(String poem, int i) {

    while (i < poem.length() && poem.charAt(i) != ']')

      ++i;

    return i;

  }



  private static String groupStringLits(String poem) {

    StringBuilder buf = new StringBuilder();

    for (int i = 0; i < poem.length(); i++) {

      char c = poem.charAt(i);

      if (c == '"') {

        PStringLit parser = new PStringLit();

        parser.setText(poem, i);

        parser.parse();

        int j = parser.getIdx();

        buf.append("[" + poem.substring(i, j) + "]");

        i = j-1;

      } else

        buf.append(c);

    }

    return buf.toString();

  }

}


}}		 2015-08-18 00:47:03 

 
 
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#308 4785 [visualize] 

 
   
  

  

    Snippet ID:
    #281
  

  

    Snippet name:
    GroupingTest.java
  

    

    Eternal ID of this version:
    #281/1
  

  

    Text MD5:
    059a6a85452935dd18855afe3c0060fd
  

    

    Author:
    stefan
  

  

    Category:
    Java sources
  

  

    Type:
    Java source code
  

        

    Public (visible to everyone):
    Yes
  

  

    Archived (hidden from active list):
    No
  

  

    Created/modified:
      2014-10-06 19:01:32
  

  

    Source code size:
    4785 bytes / 154 lines
  

  

    Pitched / IR pitched:
    No / Yes
  

    

    Views / Downloads:
    1009 / 190
  

      

    Referenced in:
[show references]