Looks up the slot number for a given name

Converts nodes at the end of the node tree to be atomic. The correctness of this optimization depends on nothing being able to backtrack into the prov

Looks up the slot number for a given name

True if the capture slot was noted

Simple optimization. If a concatenation or alternation has only one child strip out the intermediate node. If it has zero children, turn it into an em

True if I option enabling case-insensitivity is on.

Capture captures a subexpression. Note that the capnum used here has already been mapped to a non-sparse index (by the code generator RegexWriter).

Copy makes a deep copy to prevent accidental mutation of a set

FindAllRunesIndex returns a slice of rune index pairs identifying all successive matches in r.

TODO: LastIndexOf methods IndexOfAnyInRange LastIndexOfAnyInRange LastIndexOfAnyExceptInRange find should always be sent in lower-case

OptionMaxCachedReplacerDataEntries limits parsed replacement patterns cached per Regexp.

ReplaceFunc searches the input string and replaces each match found using the string from the evaluator Count will limit the number of matches attempt

Scan uses the Boyer-Moore algorithm to find the first occurrence of the specified string within text, beginning at index, and constrained within begli

SingletonChar will return the char from the first range without validation. It assumes you have checked for IsSingleton or IsSingletonInverse and will

StopTimeoutClock should only be used in unit tests to prevent the timeout clock goroutine from appearing like a leaking goroutine

Wrap returns an adapter around re.

Nonpublic builder: add a capture to the group specified by "c"

Computes a character class for the first character in tree. This uses a more robust algorithm than is used by TryFindFixedLiterals and thus can find

makeDeadline returns a time that is approximately time.Now().Add(d)

Pass type as OneLazy or OneLoop

matchIndex returns the index of the last specified matched group by capnum

matchLength returns the length of the last specified matched group by capnum

Scans \ code for escape codes that map to single unicode chars.

True if X option enabling whitespace/comment mode is on.

Computes a min bound on the required length of any string that could possibly match. If the result is 0, there is no minimum we can enforce.

Get the height of the stack

Escape adds backslashes to any special characters in the input string

Recurs into the last expression of a loop node, looking to see if it can find a node that could be made atomic _assuming_ the conditions exist for it

FindRunesMatch searches the input rune slice for a Regexp match

GroupNameFromNumber retrieves a group name that corresponds to a group number. It will return "" for an unknown group number. Unnamed groups automatic

OpcodeDescription is a humman readable string of the specific offset

OptionDebug enables debug output and runner tracing for the compiled regexp.

OptionIsCodeGen enables more expensive compile-time analysis intended for regexp2cg generated engines.

OptionMaxCachedReplacerDataBytes skips caching replacement patterns longer than n bytes.