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Code Issues Releases Wiki Activity

post shortcode converter

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This commit is contained in:
Austin Huang 2021-05-18 22:11:16 -04:00
parent bf80104b1a
commit efb5818a65
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2 changed files with 23 additions and 1 deletions
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13
app/src/main/java/awais/instagrabber/utils/TextUtils.java
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@ -10,11 +10,13 @@ import android.util.Patterns;
import androidx.annotation.NonNull;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.stream.Collectors;
public final class TextUtils {
// extracted from String class
@ -106,4 +108,15 @@ public final class TextUtils {
}
return urls;
}
// https://github.com/notslang/instagram-id-to-url-segment
public static long shortcodeToId(final String shortcode) {
long result = 0L;
for (int i = 0; i < shortcode.length() && i < 11; i++){
final char c = shortcode.charAt(i);
final int k = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_".indexOf(c);
result = result * 64 + k;
}
return result;
}
}