SetTimeoutPeriod is a debug function that sets the frequency of the timeout goroutine's sleep cycle. Defaults to 100ms. The only benefit of setting th

String returns the source text used to compile the regular expression.

Finish the current quantifiable (when a quantifier is not found or is not possible)

Add a string to the last concatenate.

Sets the current unit to a subtree

Determines whether a node can be switched to an atomic loop. The node following is subsequent, used to determine whether it overlaps. iterateNullable

Returns the char left of the current parsing position.

Gets whether the set description string is for two ASCII letters that case to each other under IgnoreCase rules.

Save a number on the longjump unrolling stack

Returns the current position in the emitted code.

decodeString converts s to []rune using a shared size-classed buffer pool when allowed by the regexp optimization settings. Pooled slices must be retu

Emits a zero-argument operation. Note that the emit functions all run in two modes: they can emit code, or they can just count the size of the code.

Emits a one-argument operation.

increase the size of stack and track storage

Finds the starting one or multi of the branch, if it has one; otherwise, returns null. For simplicity, this only considers branches that are One or Mu

Computes the leading substring in node may be empty.

Computes the leading ordinal case-insensitive substring in node

Finds an array of multiple prefixes that a node can begin with. If a fixed set of prefixes is found, such that a match for this node is guaranteed to

Returns n <= 0xF for a hex digit.

isMatched tells if a group was matched by capnum

When generating code on a regex that uses a sparse set of capture slots, we hash them to a dense set of indices for an array of capture slots. Instead

mapHashFill converts a charset into a buffer for use in maps

Scans X for \p{X} or \P{X}

Fixes up a jump instruction at the specified offset so that it jumps to the specified jumpDest.

This is the pop.

This is the pop.

Pops the option stack, but keeps the current options unchanged.

Recalls options from the stack.

To avoid recursion, we use a simple integer stack. This is the push.

Saves options on a stack.

reached returns true if current time is at or past t.

removes children including the start but not the end index

Replace Replaces all occurrences of the regex in the string with the replacement pattern. Note that the special case of no matches is handled on its

scans backslash specials and basics

Scans whitespace or x-mode comments.

Scans contents of [] (not including []'s), and converts to a set.

Scans exactly c hex digits (c=2 for \xFF, c=4 for \uFFFF)

Scan hex digits until we hit a closing brace. Non-hex digits, hex value too large for UTF-8, or running out of chars are errors

Scans imnsxu-imnsxu option string, stops at the first unrecognized char.

revert the last capture

option shortcuts True if N option disabling '(' autocapture is on.

Three very similar algorithms appear below: replace (pattern), replace (evaluator), and split.