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In-line calls to SpannableStringBuilder.length() in TtmlNode

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This avoids keeping a redundant (and potentially out of sync) copy of
the same info in builderLength.

PiperOrigin-RevId: 290709360
This commit is contained in:
ibaker 2020-01-21 10:50:40 +00:00 committed by Ian Baker
parent 3aa52c2317
commit 4da0d0a4b5
1 changed files with 8 additions and 15 deletions
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23
library/core/src/main/java/com/google/android/exoplayer2/text/ttml/TtmlNode.java
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@ -364,8 +364,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
private static void cleanUpText(SpannableStringBuilder builder) {
// Having joined the text elements, we need to do some final cleanup on the result.
// 1. Collapse multiple consecutive spaces into a single space.
int builderLength = builder.length();
for (int i = 0; i < builderLength; i++) {
for (int i = 0; i < builder.length(); i++) {
if (builder.charAt(i) == ' ') {
int j = i + 1;
while (j < builder.length() && builder.charAt(j) == ' ') {
@ -374,36 +373,30 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
int spacesToDelete = j - (i + 1);
if (spacesToDelete > 0) {
builder.delete(i, i + spacesToDelete);
builderLength -= spacesToDelete;
}
}
}
// 2. Remove any spaces from the start of each line.
if (builderLength > 0 && builder.charAt(0) == ' ') {
if (builder.length() > 0 && builder.charAt(0) == ' ') {
builder.delete(0, 1);
builderLength--;
}
for (int i = 0; i < builderLength - 1; i++) {
for (int i = 0; i < builder.length() - 1; i++) {
if (builder.charAt(i) == '\n' && builder.charAt(i + 1) == ' ') {
builder.delete(i + 1, i + 2);
builderLength--;
}
}
// 3. Remove any spaces from the end of each line.
if (builderLength > 0 && builder.charAt(builderLength - 1) == ' ') {
builder.delete(builderLength - 1, builderLength);
builderLength--;
if (builder.length() > 0 && builder.charAt(builder.length() - 1) == ' ') {
builder.delete(builder.length() - 1, builder.length());
}
for (int i = 0; i < builderLength - 1; i++) {
for (int i = 0; i < builder.length() - 1; i++) {
if (builder.charAt(i) == ' ' && builder.charAt(i + 1) == '\n') {
builder.delete(i, i + 1);
builderLength--;
}
}
// 4. Trim a trailing newline, if there is one.
if (builderLength > 0 && builder.charAt(builderLength - 1) == '\n') {
builder.delete(builderLength - 1, builderLength);
/*builderLength--;*/
if (builder.length() > 0 && builder.charAt(builder.length() - 1) == '\n') {
builder.delete(builder.length() - 1, builder.length());
}
}