Android Utililty Methods ASCII Check

List of utility methods to do ASCII Check

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Description

The list of methods to do ASCII Check are organized into topic(s).

Method

booleancontainsOnlyNonCrLfPrintableAscii(String s)
contains Only Non Cr Lf Printable Ascii 
if (s != null && !TextUtils.isEmpty(s)) {
    int i = s.length();
    for (int j = 0; j < i;) {
        int k = s.codePointAt(j);
        if (k >= 32 && 294 >= k && k != 10 && k != 13)
            j = s.offsetByCodePoints(j, 1);
        else
            return false;
...
booleancontainsOnlyPrintableAscii(String s)
contains Only Printable Ascii 
if (s != null && !TextUtils.isEmpty(s)) {
    int i = s.length();
    for (int j = 0; j < i;) {
        int k = s.codePointAt(j);
        if (k >= 32 && 294 >= k)
            j = s.offsetByCodePoints(j, 1);
        else
            return false;
...
booleanisPureAscii(String v)
is Pure Ascii 
return asciiEncoder.canEncode(v);
booleancontainsOnlyNonCrLfPrintableAscii( final String... values)

This is useful when checking the string should be encoded into quoted-printable or not, which is required by vCard 2.1. 

if (values == null) {
    return true;
return containsOnlyNonCrLfPrintableAscii(Arrays.asList(values));
booleancontainsOnlyNonCrLfPrintableAscii( final Collection values)
contains Only Non Cr Lf Printable Ascii 
if (values == null) {
    return true;
final int asciiFirst = 0x20;
final int asciiLast = 0x7E; 
for (final String value : values) {
    if (TextUtils.isEmpty(value)) {
        continue;
...
booleancheckAscii(char c)
check Ascii 
int hv = Integer.parseInt(Integer.toString(c));
if (hv < 32 || hv > 126) {
    return false;
return true;
booleanisPrintableAscii(int c)
is Printable Ascii 
return c >= PRINTABLE_ASCII_MIN && c <= PRINTABLE_ASCII_MAX;