aboutsummaryrefslogtreecommitdiffstats
path: root/java/src/com/android/inputmethod/latin/StringUtils.java
diff options
context:
space:
mode:
Diffstat (limited to 'java/src/com/android/inputmethod/latin/StringUtils.java')
-rw-r--r--java/src/com/android/inputmethod/latin/StringUtils.java126
1 files changed, 39 insertions, 87 deletions
diff --git a/java/src/com/android/inputmethod/latin/StringUtils.java b/java/src/com/android/inputmethod/latin/StringUtils.java
index df7709892..ddaa5ff5b 100644
--- a/java/src/com/android/inputmethod/latin/StringUtils.java
+++ b/java/src/com/android/inputmethod/latin/StringUtils.java
@@ -16,10 +16,9 @@
package com.android.inputmethod.latin;
+import android.text.InputType;
import android.text.TextUtils;
-import com.android.inputmethod.keyboard.Keyboard; // For character constants
-
import java.util.ArrayList;
import java.util.Locale;
@@ -28,30 +27,30 @@ public final class StringUtils {
// This utility class is not publicly instantiable.
}
- public static int codePointCount(String text) {
+ public static int codePointCount(final String text) {
if (TextUtils.isEmpty(text)) return 0;
return text.codePointCount(0, text.length());
}
- public static boolean containsInArray(String key, String[] array) {
+ public static boolean containsInArray(final String key, final String[] array) {
for (final String element : array) {
if (key.equals(element)) return true;
}
return false;
}
- public static boolean containsInCsv(String key, String csv) {
+ public static boolean containsInCsv(final String key, final String csv) {
if (TextUtils.isEmpty(csv)) return false;
return containsInArray(key, csv.split(","));
}
- public static String appendToCsvIfNotExists(String key, String csv) {
+ public static String appendToCsvIfNotExists(final String key, final String csv) {
if (TextUtils.isEmpty(csv)) return key;
if (containsInCsv(key, csv)) return csv;
return csv + "," + key;
}
- public static String removeFromCsvIfExists(String key, String csv) {
+ public static String removeFromCsvIfExists(final String key, final String csv) {
if (TextUtils.isEmpty(csv)) return "";
final String[] elements = csv.split(",");
if (!containsInArray(key, elements)) return csv;
@@ -63,65 +62,20 @@ public final class StringUtils {
}
/**
- * Returns true if a and b are equal ignoring the case of the character.
- * @param a first character to check
- * @param b second character to check
- * @return {@code true} if a and b are equal, {@code false} otherwise.
- */
- public static boolean equalsIgnoreCase(char a, char b) {
- // Some language, such as Turkish, need testing both cases.
- return a == b
- || Character.toLowerCase(a) == Character.toLowerCase(b)
- || Character.toUpperCase(a) == Character.toUpperCase(b);
- }
-
- /**
- * Returns true if a and b are equal ignoring the case of the characters, including if they are
- * both null.
- * @param a first CharSequence to check
- * @param b second CharSequence to check
- * @return {@code true} if a and b are equal, {@code false} otherwise.
- */
- public static boolean equalsIgnoreCase(CharSequence a, CharSequence b) {
- if (a == b)
- return true; // including both a and b are null.
- if (a == null || b == null)
- return false;
- final int length = a.length();
- if (length != b.length())
- return false;
- for (int i = 0; i < length; i++) {
- if (!equalsIgnoreCase(a.charAt(i), b.charAt(i)))
- return false;
- }
- return true;
- }
-
- /**
- * Returns true if a and b are equal ignoring the case of the characters, including if a is null
- * and b is zero length.
- * @param a CharSequence to check
- * @param b character array to check
- * @param offset start offset of array b
- * @param length length of characters in array b
- * @return {@code true} if a and b are equal, {@code false} otherwise.
- * @throws IndexOutOfBoundsException
- * if {@code offset < 0 || length < 0 || offset + length > data.length}.
- * @throws NullPointerException if {@code b == null}.
+ * Find a string that start with specified prefix from an array.
+ *
+ * @param prefix a prefix string to find.
+ * @param array an string array to be searched.
+ * @return the rest part of the string that starts with the prefix.
+ * Returns null if it couldn't be found.
*/
- public static boolean equalsIgnoreCase(CharSequence a, char[] b, int offset, int length) {
- if (offset < 0 || length < 0 || length > b.length - offset)
- throw new IndexOutOfBoundsException("array.length=" + b.length + " offset=" + offset
- + " length=" + length);
- if (a == null)
- return length == 0; // including a is null and b is zero length.
- if (a.length() != length)
- return false;
- for (int i = 0; i < length; i++) {
- if (!equalsIgnoreCase(a.charAt(i), b[offset + i]))
- return false;
+ public static String findPrefixedString(final String prefix, final String[] array) {
+ for (final String element : array) {
+ if (element.startsWith(prefix)) {
+ return element.substring(prefix.length());
+ }
}
- return true;
+ return null;
}
/**
@@ -130,15 +84,15 @@ public final class StringUtils {
* This method will always keep the first occurrence of all strings at their position
* in the array, removing the subsequent ones.
*/
- public static void removeDupes(final ArrayList<CharSequence> suggestions) {
+ public static void removeDupes(final ArrayList<String> suggestions) {
if (suggestions.size() < 2) return;
int i = 1;
// Don't cache suggestions.size(), since we may be removing items
while (i < suggestions.size()) {
- final CharSequence cur = suggestions.get(i);
+ final String cur = suggestions.get(i);
// Compare each suggestion with each previous suggestion
for (int j = 0; j < i; j++) {
- CharSequence previous = suggestions.get(j);
+ final String previous = suggestions.get(j);
if (TextUtils.equals(cur, previous)) {
suggestions.remove(i);
i--;
@@ -149,7 +103,7 @@ public final class StringUtils {
}
}
- public static String toTitleCase(String s, Locale locale) {
+ public static String toTitleCase(final String s, final Locale locale) {
if (s.length() <= 1) {
// TODO: is this really correct? Shouldn't this be s.toUpperCase()?
return s;
@@ -165,21 +119,19 @@ public final class StringUtils {
return s.toUpperCase(locale).charAt(0) + s.substring(1);
}
+ private static final int[] EMPTY_CODEPOINTS = {};
+
public static int[] toCodePointArray(final String string) {
- final char[] characters = string.toCharArray();
- final int length = characters.length;
- final int[] codePoints = new int[Character.codePointCount(characters, 0, length)];
+ final int length = string.length();
if (length <= 0) {
- return new int[0];
+ return EMPTY_CODEPOINTS;
}
- int codePoint = Character.codePointAt(characters, 0);
- int dsti = 0;
- for (int srci = Character.charCount(codePoint);
- srci < length; srci += Character.charCount(codePoint), ++dsti) {
- codePoints[dsti] = codePoint;
- codePoint = Character.codePointAt(characters, srci);
+ final int[] codePoints = new int[string.codePointCount(0, length)];
+ int destIndex = 0;
+ for (int index = 0; index < length; index = string.offsetByCodePoints(index, 1)) {
+ codePoints[destIndex] = string.codePointAt(index);
+ destIndex++;
}
- codePoints[dsti] = codePoint;
return codePoints;
}
@@ -237,7 +189,7 @@ public final class StringUtils {
} else {
for (i = cs.length(); i > 0; i--) {
final char c = cs.charAt(i - 1);
- if (c != Keyboard.CODE_DOUBLE_QUOTE && c != Keyboard.CODE_SINGLE_QUOTE
+ if (c != Constants.CODE_DOUBLE_QUOTE && c != Constants.CODE_SINGLE_QUOTE
&& Character.getType(c) != Character.START_PUNCTUATION) {
break;
}
@@ -253,11 +205,11 @@ public final class StringUtils {
// if the first char that's not a space or tab is a start of line (as in \n, start of text,
// or some other similar characters).
int j = i;
- char prevChar = Keyboard.CODE_SPACE;
+ char prevChar = Constants.CODE_SPACE;
if (hasSpaceBefore) --j;
while (j > 0) {
prevChar = cs.charAt(j - 1);
- if (!Character.isSpaceChar(prevChar) && prevChar != Keyboard.CODE_TAB) break;
+ if (!Character.isSpaceChar(prevChar) && prevChar != Constants.CODE_TAB) break;
j--;
}
if (j <= 0 || Character.isWhitespace(prevChar)) {
@@ -296,7 +248,7 @@ public final class StringUtils {
// variants of English, the final period is placed within double quotes and maybe
// other closing punctuation signs. This is generally not true in other languages.
final char c = cs.charAt(j - 1);
- if (c != Keyboard.CODE_DOUBLE_QUOTE && c != Keyboard.CODE_SINGLE_QUOTE
+ if (c != Constants.CODE_DOUBLE_QUOTE && c != Constants.CODE_SINGLE_QUOTE
&& Character.getType(c) != Character.END_PUNCTUATION) {
break;
}
@@ -310,10 +262,10 @@ public final class StringUtils {
// end of a sentence. If we have a question mark or an exclamation mark, it's the end of
// a sentence. If it's neither, the only remaining case is the period so we get the opposite
// case out of the way.
- if (c == Keyboard.CODE_QUESTION_MARK || c == Keyboard.CODE_EXCLAMATION_MARK) {
+ if (c == Constants.CODE_QUESTION_MARK || c == Constants.CODE_EXCLAMATION_MARK) {
return (TextUtils.CAP_MODE_CHARACTERS | TextUtils.CAP_MODE_SENTENCES) & reqModes;
}
- if (c != Keyboard.CODE_PERIOD || j <= 0) {
+ if (c != Constants.CODE_PERIOD || j <= 0) {
return (TextUtils.CAP_MODE_CHARACTERS | TextUtils.CAP_MODE_WORDS) & reqModes;
}
@@ -363,7 +315,7 @@ public final class StringUtils {
case WORD:
if (Character.isLetter(c)) {
state = WORD;
- } else if (c == Keyboard.CODE_PERIOD) {
+ } else if (c == Constants.CODE_PERIOD) {
state = PERIOD;
} else {
return caps;
@@ -379,7 +331,7 @@ public final class StringUtils {
case LETTER:
if (Character.isLetter(c)) {
state = LETTER;
- } else if (c == Keyboard.CODE_PERIOD) {
+ } else if (c == Constants.CODE_PERIOD) {
state = PERIOD;
} else {
return noCaps;
generated by cgit v1.2.3-83-g751a (git 2.47.1) at 2025-05-05 14:26:37 +0000