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perf: scan lf text-block lines with indexOf #841

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perf: scan lf text-block lines with indexOf #841

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12 changes: 9 additions & 3 deletions sjsonnet/src/sjsonnet/Parser.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -413,11 +413,17 @@ class Parser(
else if (pos + indentLen <= dataLen && data.regionMatches(pos, indent, 0, indentLen)) {
val afterIndent = pos + indentLen
// Find line end (next separator char)
var lineEnd = afterIndent
while (lineEnd < dataLen && sep.indexOf(data.charAt(lineEnd)) < 0) lineEnd += 1
val lineEnd =
if (sepLen == 1) data.indexOf(sep.charAt(0), afterIndent)
else {
var i = afterIndent
while (i < dataLen && sep.indexOf(data.charAt(i)) < 0) i += 1
i
}
// Verify full separator at lineEnd
if (
lineEnd + sepLen <= dataLen && data.charAt(lineEnd) == sep.charAt(0) &&
lineEnd >= 0 && lineEnd + sepLen <= dataLen &&
data.charAt(lineEnd) == sep.charAt(0) &&
(sepLen == 1 || data.charAt(lineEnd + 1) == sep.charAt(1))
) {
// Zero-copy bulk append: extra whitespace + content + separator (skipping indent)
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