@Override
public CharSequence filter(
CharSequence src, int start, int end, Spanned dest, int dstart, int dend) {
int dindex = 0;
int count = 0;
int attempt = 0;
maxLen = maxlenChar;
while (dindex < src.length()) {
char c = src.charAt(dindex++);
count++;
if (c >= 128) {
maxLen = maxLenHanzi;
}
}
dindex = 0;
while (dindex < dest.length()) {
char c = dest.charAt(dindex++);
count++;
if (c >= 128) {
maxLen = maxLenHanzi;
}
}
attempt = count;
if (count > maxLen) {
// more words input than you want ,give up the redundant character
count = maxLen;
src = "";
}
if (mCallBack != null) {
mCallBack.lengthChange(count, attempt);
}
return src;
}
@Override
public CharSequence filter(
CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
if ((end == 1)
&& (dstart != 0)
&& (dend != dest.length())
&& (source.charAt(start) == '\n')) {
StringBuilder ident = new StringBuilder();
// find the last line
int n = 1;
while (dest.charAt(dstart - n) != '\n') ++n;
// copy previous ident and autoexpand comments
int s = 1;
char c = dest.charAt(dstart - n + s++);
while (c != '\n' && (c == ' ' || c == '/')) {
ident.append(c);
c = dest.charAt(dstart - n + s++);
}
// extra ident after these chars
if ("{(*+/-=%".contains(String.valueOf(dest.charAt(dstart - 1)))) ident.append(" ");
return source + ident.toString();
}
return source;
}
private void findChars(@NonNull Spanned s, int start, int end, int offset, int[] out) {
for (int i = start; i < end; i++) {
final char c = s.charAt(i);
if (isSignChar(c)) {
if (out[CHAR_SIGN] == -1 && out[CHAR_EXP] == -1) {
// count in only signs before exponent
out[CHAR_SIGN] = i + offset;
}
} else if (isDecimalPointChar(c)) {
if (out[CHAR_POINT] == -1) {
out[CHAR_POINT] = i + offset;
}
} else if (isExponentChar(c)) {
if (out[CHAR_EXP] == -1) {
out[CHAR_EXP] = i + offset;
}
}
}
}
@Override
public CharSequence filter(
CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
Log.i(
"test_filter",
"source = "
+ source
+ ", start = "
+ start
+ ", end = "
+ end
+ ", dest = "
+ dest
+ ", dstart = "
+ dstart
+ ", dend = "
+ dend);
int crtLength = dest.length();
String numStr = getIntPart(source);
if (crtLength == 0 || dend - dstart == crtLength)
return numStr.substring(0, max > numStr.length() ? numStr.length() : max);
int returnLength = max - dest.length() + dend - dstart;
if (numStr.length() < returnLength) returnLength = numStr.length();
if (dest.charAt(0) == '0') {
if (dstart > 0) {
text.setText(numStr.substring(0, returnLength));
text.setSelection(returnLength);
return "";
}
if (numStr.startsWith("0")) return "";
return numStr.substring(0, returnLength);
}
if (numStr.startsWith("0")) {
if (dstart == 0) return "";
return numStr.substring(0, returnLength);
}
return numStr.substring(0, returnLength);
}