Github user PascalSchumacher commented on a diff in the pull request:
https://github.com/apache/commons-text/pull/50#discussion_r122294037
--- Diff: src/main/java/org/apache/commons/text/CharacterPredicates.java ---
@@ -48,5 +48,73 @@ public boolean test(int codePoint) {
public boolean test(int codePoint) {
return Character.isDigit(codePoint);
}
- }
+ },
+
+ /**
+ * Tests if the code points represents a number between 0 and 9.
+ *
+ * @since 1.2
+ */
+ ARABIC_NUMERALS {
+ @Override
+ public boolean test(int codePoint) {
+ return codePoint >= ZERO_CODEPOINT && codePoint <=
NINE_CODEPOINT;
+ }
+ },
+
+ /**
+ * Tests if the code points represents a letter between a and z.
+ *
+ * @since 1.2
+ */
+ ASCII_LOWERCASE_LETTERS {
+ @Override
+ public boolean test(int codePoint) {
+ return codePoint >= LOWERCASE_A_CODEPOINT && codePoint <=
LOWERCASE_Z_CODEPOINT;
+ }
+ },
+
+ /**
+ * Tests if the code points represents a letter between A and Z.
+ *
+ * @since 1.2
+ */
+ ASCII_UPPERCASE_LETTERS {
+ @Override
+ public boolean test(int codePoint) {
+ return codePoint >= UPPERCASE_A_CODEPOINT && codePoint <=
UPPERCASE_Z_CODEPOINT;
+ }
+ },
+
+ /**
+ * Tests if the code points represents a letter between a and Z.
+ *
+ * @since 1.2
+ */
+ ASCII_LETTERS {
+ @Override
+ public boolean test(int codePoint) {
+ return ASCII_LOWERCASE_LETTERS.test(codePoint) ||
ASCII_UPPERCASE_LETTERS.test(codePoint);
+ }
+ },
+
+ /**
+ * Tests if the code points represents a letter between a and Z or a
number between 0 and 9.
+ *
+ * @since 1.2
+ */
+ ASCII_ALPHA_NUMERALS {
+ @Override
+ public boolean test(int codePoint) {
+ return ASCII_LOWERCASE_LETTERS.test(codePoint) ||
ASCII_UPPERCASE_LETTERS.test(codePoint)
+ || ARABIC_NUMERALS.test(codePoint);
+ }
+ };
+
+ private static final int NINE_CODEPOINT = 57;
--- End diff --
Sure. I have updated the pull request. Thanks for the suggestion!
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