ci: sync upstream Onigmo + modern GitHub Actions CI

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: weekly

.github/workflows/ci.yml

@@ -0,0 +1,48 @@
+name: ci
+
+on:
+  push:
+    branches: [master, main]
+  pull_request:
+
+jobs:
+  test:
+    name: ${{ matrix.compiler }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [gcc, clang]
+    env:
+      CC: ${{ matrix.compiler }}
+    steps:
+      - uses: actions/checkout@v7
+      - name: Install build prerequisites
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y autoconf automake libtool
+      - name: Build
+        run: |
+          ./autogen.sh
+          ./configure
+          make
+      - name: Test
+        run: make test
+
+  sanitizers:
+    name: ASan + UBSan
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+      - name: Install build prerequisites
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y autoconf automake libtool
+      - name: Build with sanitizers
+        run: |
+          ./autogen.sh
+          ./configure CFLAGS="-fsanitize=address,undefined -fno-omit-frame-pointer" \
+                      LDFLAGS="-fsanitize=address,undefined"
+          make
+      - name: Test
+        run: make test

HISTORY

@@ -968,7 +968,7 @@ History of Oniguruma
                    Any, Assigned, C, Cc, L, Lm, Arabic, Greek etc...
 2006/09/21: [impl] add USE_UNICODE_PROPERTIES into regenc.h.
 2006/09/21: [impl] remove USE_UNICODE_FULL_RANGE_CTYPE.
-2006/09/20: [impl] change ONIGENC_CTYPE_XXXX to sequencial values.
+2006/09/20: [impl] change ONIGENC_CTYPE_XXXX to sequential values.
                    add BIT_CTYPE_XXXX bit flags to regenc.h.
                    update XXXX_CtypeTable[] for BIT_CTYPE_ALNUM.
 2006/09/19: [memo] move from CVS to Subversion (1.3.2).
@@ -1430,7 +1430,7 @@ History of Oniguruma
 2004/12/16: [test] success in ruby 1.9.0 (2004-12-16) [i686-linux].
 2004/12/16: [dist] update hash.c.patch.
 2004/12/15: [bug]  (thanks matz)
-                   char > 127 should be casted to unsigned char. (utf8.c)
+                   char > 127 should be cast to unsigned char. (utf8.c)
 2004/12/13: [impl] add HAVE_PROTOTYPES and HAVE_STDARG_PROTOTYPES definition
                    to oniguruma.h in the case __cplusplus.
 2004/12/06: [dist] update doc/RE and doc/RE.ja.
@@ -2337,7 +2337,7 @@ History of Oniguruma
 2003/03/08: [impl] remove check_backref_number().
 2003/03/08: [bug]  called group in 0-repeat should not be eliminated from
                    compile code.  ex. /(?*n)(?<n>){0}/   (thanks akr)
-                   add is_refered member to QualifierNode.
+                   add is_referred member to QualifierNode.
 2003/03/07: [impl] use hash table(st.[ch]) for implementation of name table.
                    (enable on Ruby in default)
 2003/03/07: [new]  add regex_foreach_names().
@@ -2390,7 +2390,7 @@ History of Oniguruma
                    if it is set, then error /(\1)/, /\1(..)/ etc...
 2003/02/26: [spec] if backref number is greater than max group number,
                    then return compile error. (REGERR_INVALID_BACKREF_NUMBER)
-2003/02/26: [tune] bad implemented N_ALT case in get_min_match_length().
+2003/02/26: [tune] badly implemented N_ALT case in get_min_match_length().
 2003/02/26: [dist] auto update testc.c and win32/testc.c in dist target.
 2003/02/26: [impl] add -win option to testconv.rb.
 2003/02/25: [spec] allow to assign same name to different group.
@@ -2485,7 +2485,7 @@ History of Oniguruma
 2003/01/31: [impl] rename TTRANS() to TOLOWER().
 2003/01/30: [bug]  .c.o --> .c.obj in win32\Makefile.
 2003/01/30: [impl] add -DNOT_RUBY to Makefile.in.
-                   NOT_RUBY is refered in regint.h for escape double
+                   NOT_RUBY is referred in regint.h for escape double
                    including config.h.
 2003/01/30: [impl] when string hasn't case ambiguity, don't compile
                    to ignore case opcode.
@@ -2510,7 +2510,7 @@ History of Oniguruma
 2003/01/18: [impl] change REGION_NOTPOS to REG_REGION_NOTPOS in regex.h.
 2003/01/17: [dist] add sample/simple.c.
 2003/01/17: [inst] add configure option --with-rubydir.
-2003/01/17: [bug]  bad implemeted POSIX API options.
+2003/01/17: [bug]  badly implemented POSIX API options.
                    default:     /./ not match "\n", anchor not match "\n"
                    REG_NEWLINE: /./ not match "\n", anchor match "\n"
 2003/01/16: [impl] rewrite POSIX API regexec() for speed up.

doc/API

@@ -468,7 +468,7 @@ Onigmo (Oniguruma-mod) API  Version 6.1.2  2017/05/10
 
   Return the root node of capture history data tree.
 
-  This value is undefined if matching has faild.
+  This value is undefined if matching has failed.
 
   arguments
   1 region: matching result.

st.c

@@ -721,7 +721,7 @@ st_free_table(st_table *tab)
 }
 
 #ifdef RUBY
-/* Return byte size of memory allocted for table TAB.  */
+/* Return byte size of memory allocated for table TAB.  */
 size_t
 st_memsize(const st_table *tab)
 {

st.h

@@ -1,7 +1,7 @@
 /* This is a public domain general purpose hash table package
    originally written by Peter Moore @ UCB.
 
-   The hash table data strutures were redesigned and the package was
+   The hash table data structures were redesigned and the package was
    rewritten by Vladimir Makarov <vmakarov@redhat.com>.  */
 
 #ifndef RUBY_ST_H