Yukihiro "Matz" Matsumoto d21eceb286 mruby-regexp: disable first-byte skip when pattern can match empty ...

first_set_walk returned TRUE when it reached RE_MATCH via epsilon
transitions, but that's exactly the case where the optimization is
wrong: an empty-matchable pattern can start matching at any position,
including bytes that aren't in the computed first-byte set. The
skip-ahead loop in pike_vm then advanced past valid empty-match
positions, producing a match at the wrong offset (e.g. /a?/.match("b")
reported the empty match at index 1 instead of 0).

Co-authored-by: Claude <noreply@anthropic.com>

2026-05-23 09:58:31 +09:00

..

hw-adc

hw-adc: add ADC peripheral gem for embedded platforms

2026-04-23 19:25:38 +09:00

hw-gpio

Run prek; remove trailing whitespace; cleanup markdown

2026-05-10 14:56:53 +10:00

hw-i2c

Run prek; remove trailing whitespace; cleanup markdown

2026-05-10 14:56:53 +10:00

hw-pwm

hw-pwm: add PWM peripheral gem for embedded platforms

2026-04-23 19:25:38 +09:00

hw-spi

hw-spi: wrap splat-bearing method signatures as code in README

2026-05-20 08:35:22 +09:00

hw-uart

Run prek; remove trailing whitespace; cleanup markdown

2026-05-10 14:56:53 +10:00

mruby-array-ext

Integrate Array#{permutation,combination} into Array#__combination

2026-05-06 18:27:16 +09:00

mruby-benchmark

mruby-benchmark: standardize block parameter spacing

2025-12-11 18:09:09 +09:00

mruby-bigint

mruby-bigint: gate mpz_mod's Barrett path on the algorithm's precondition

2026-05-22 07:08:26 +09:00

mruby-bin-config

mruby-bin-config: register installer in products instead of bins

2026-04-25 19:57:44 +09:00

mruby-bin-debugger

mruby-bin-debugger: return on OOM in mrb_debug_set_break_method

2026-05-22 07:08:26 +09:00

mruby-bin-mirb

mirb.c: add fileno() to _fileno() mapping for MSVC

2026-04-23 19:25:35 +09:00

mruby-bin-mrb

Don't use #puts in bintest for "mruby-bin-mrb"

2026-05-02 20:52:00 +09:00

mruby-bin-mrbc

mruby-bin-mrbc: skip multi-input debug-info bintest when bin-mruby absent

2026-05-16 21:17:41 +09:00

mruby-bin-mruby

mruby-bin-mruby: skip regexp split bintest when mruby-regexp absent

2026-05-16 20:23:23 +09:00

mruby-bin-strip

mrbgems: add README documentation for mruby-bin-* gems

2025-12-11 18:09:10 +09:00

mruby-binding

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-catch

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-class-ext

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-cmath

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-compar-ext

docs: replace xml-style markup with markdown in comments

2025-08-14 10:52:49 +09:00

mruby-compiler

mruby-compiler: bail out of array-literal pattern match opt on splat

2026-05-23 09:58:30 +09:00

mruby-complex

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-data

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-dir

mruby-dir: migrate HAL to ports/ directories

2026-04-23 19:25:37 +09:00

mruby-encoding

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-enum-chain

mruby-enum-chain: add parentheses to to_enum call

2025-12-11 18:09:06 +09:00

mruby-enum-ext

mruby-enum-ext: fix remaining block parameter spacing

2025-12-11 18:09:09 +09:00

mruby-enum-lazy

mruby-enum-lazy: add Enumerator::Lazy#tap_each

2026-04-23 19:25:25 +09:00

mruby-enumerator

mruby-enumerator: add parentheses to block.call

2025-12-11 18:09:07 +09:00

mruby-env

mruby-env: add README.md

2026-04-23 19:25:21 +09:00

mruby-errno

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-error

mruby-error: combine variable declaration with initialization

2025-11-08 14:26:49 +09:00

mruby-eval

mruby-eval: unify f_instance_eval and f_class_eval

2026-05-08 11:51:25 +09:00

mruby-exit

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-fiber

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-hash-ext

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-io

Fix documentation for autoclose? method

2026-05-14 09:57:26 +02:00

mruby-kernel-ext

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-math

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-metaprog

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-method

mruby-internal: switch internal mrb_funcall_id callers to argv1/argv2

2026-05-10 01:32:33 +09:00

mruby-numeric-ext

mruby-numeric-ext: avoid signed overflow on Integer#gcd/lcm with MRB_INT_MIN

2026-05-19 12:05:33 +09:00

mruby-object-ext

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-objectspace

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-os-memsize

mruby-os-memsize: support Set class

2025-06-24 13:56:07 +09:00

mruby-pack

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-proc-binding

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-proc-ext

mruby-proc-ext: Proc#curry should check max arity for lambdas

2026-05-11 14:06:28 +09:00

mruby-random

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-range-ext

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-rational

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-regexp

mruby-regexp: disable first-byte skip when pattern can match empty

2026-05-23 09:58:31 +09:00

mruby-set

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-sleep

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-socket

mruby-socket: implement Socket.ip_address_list

2026-05-09 10:22:19 +09:00

mruby-sprintf

fp_uscale.c: clamp precision in %g to avoid OOB in fixed_width

2026-05-12 11:19:20 +09:00

mruby-strftime

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-string-ext

mruby-string-ext: reject surrogates and ill-formed UTF-8

2026-05-11 07:48:23 +09:00

mruby-struct

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-symbol-ext

Merge pull request #2479 from take-cheeze/sym_slice

2026-05-09 10:32:20 +09:00

mruby-task

Merge pull request #6836 from hasumikin/fix/task

2026-05-18 16:26:31 +09:00

mruby-test

mruby-test: write generated C files atomically to avoid race condition

2026-03-25 15:32:36 +09:00

mruby-test-inline-struct

Fix spelling

2024-09-24 00:14:24 +10:00

mruby-time

mruby.h: include mruby/presym.h for all source files

2026-03-09 16:50:58 +09:00

mruby-toplevel-ext

mruby-toplevel-ext: add comprehensive call-seq documentation for toplevel include

2025-08-14 10:52:47 +09:00

default-no-fpu.gembox

Specify receivers for gembox methods; ref #5241

2021-01-06 18:10:21 +09:00

default-no-stdio.gembox

Specify receivers for gembox methods; ref #5241

2021-01-06 18:10:21 +09:00

default.gembox

Update default.gembox add mruby debugger mrbd

2023-04-04 19:31:42 +10:00

full-core.gembox

full-core.gembox: exclude mruby-sleep from gembox

2025-10-08 23:55:21 +09:00

math.gembox

math.gembox: exclude mruby-cmath from math gembox

2025-05-14 15:58:23 +09:00

metaprog.gembox

metaprog.gembox: add two binding gems

2025-05-14 15:58:24 +09:00

stdlib-ext.gembox

mruby-data: new gem for Data class introduced in Ruby 3.2

2022-11-29 15:58:05 +09:00

stdlib-io.gembox

mruby-env: add ENV object for environment variable access

2026-04-23 19:25:21 +09:00

stdlib.gembox

mruby-regexp: add $1-$9 globals and include in stdlib gembox

2026-04-23 19:25:29 +09:00