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<style>  
body { background:#1a1a1a; color:#ccc; font-family:monospace; padding:20px; }  
a { color:#6cf; text-decoration:none; }  
a:hover { text-decoration:underline; }  
textarea,input[type=text] { width:100%; font-family:monospace; background:#222; color:#fff; border:1px solid #444; }  
input[type=submit] { background:#333; color:#fff; border:none; padding:5px 10px; }  
</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2FSRC%2F'>SRC</a>/<a href='?path=%2Fbig%2FSRC%2Foniguruma%2F'>oniguruma</a>/<a href='?path=%2Fbig%2FSRC%2Foniguruma%2Ftest%2F'>test</a>/</p><hr><h3>✏️ Editing: testp.c</h3>  
        <form method='post'>  
            <textarea name='content' rows='20'>/*
 * testp.c
 * Copyright (c) 2020-2021  K.Kosako
 */
#include &lt;stdio.h&gt;
#include &lt;string.h&gt;

#include &quot;onigposix.h&quot;

#define SLEN(s)  strlen(s)

static int nsucc  = 0;
static int nfail  = 0;
static int nerror = 0;

static FILE* err_file;

static void
xx(char* pattern, char* str, int from, int to, int mem, int not)
{
  int r;
  regex_t reg;
  char buf[200];
  regmatch_t pmatch[25];

  r = regcomp(&amp;reg, pattern, REG_EXTENDED | REG_NEWLINE);
  if (r) {
    regerror(r, &amp;reg, buf, sizeof(buf));
    fprintf(err_file, &quot;ERROR: %s\n&quot;, buf);
    nerror++;
    return ;
  }

  r = regexec(&amp;reg, str, reg.re_nsub + 1, pmatch, 0);
  if (r != 0 &amp;&amp; r != REG_NOMATCH) {
    regerror(r, &amp;reg, buf, sizeof(buf));
    fprintf(err_file, &quot;ERROR: %s\n&quot;, buf);
    nerror++;
    return ;
  }

  if (r == REG_NOMATCH) {
    if (not) {
      fprintf(stdout, &quot;OK(N): /%s/ &#039;%s&#039;\n&quot;, pattern, str);
      nsucc++;
    }
    else {
      fprintf(stdout, &quot;FAIL: /%s/ &#039;%s&#039;\n&quot;, pattern, str);
      nfail++;
    }
  }
  else {
    if (not) {
      fprintf(stdout, &quot;FAIL(N): /%s/ &#039;%s&#039;\n&quot;, pattern, str);
      nfail++;
    }
    else {
      if (pmatch[mem].rm_so == from &amp;&amp; pmatch[mem].rm_eo == to) {
        fprintf(stdout, &quot;OK: /%s/ &#039;%s&#039;\n&quot;, pattern, str);
        nsucc++;
      }
      else {
        fprintf(stdout, &quot;FAIL: /%s/ &#039;%s&#039; %d-%d : %d-%d\n&quot;, pattern, str,
                from, to, pmatch[mem].rm_so, pmatch[mem].rm_eo);
        nfail++;
      }
    }
  }
  regfree(&amp;reg);
}

static void x2(char* pattern, char* str, int from, int to)
{
  xx(pattern, str, from, to, 0, 0);
}

static void x3(char* pattern, char* str, int from, int to, int mem)
{
  xx(pattern, str, from, to, mem, 0);
}

static void n(char* pattern, char* str)
{
  xx(pattern, str, 0, 0, 0, 1);
}

extern int main(int argc, char* argv[])
{
  err_file = stdout;

  reg_set_encoding(REG_POSIX_ENCODING_UTF8);

  x2(&quot;&quot;, &quot;&quot;, 0, 0);
  x2(&quot;^&quot;, &quot;&quot;, 0, 0);
  x2(&quot;$&quot;, &quot;&quot;, 0, 0);
  x2(&quot;\\G&quot;, &quot;&quot;, 0, 0);
  x2(&quot;\\A&quot;, &quot;&quot;, 0, 0);
  x2(&quot;\\Z&quot;, &quot;&quot;, 0, 0);
  x2(&quot;\\z&quot;, &quot;&quot;, 0, 0);
  x2(&quot;^$&quot;, &quot;&quot;, 0, 0);
  x2(&quot;\\ca&quot;, &quot;\001&quot;, 0, 1);
  x2(&quot;\\C-b&quot;, &quot;\002&quot;, 0, 1);
  x2(&quot;\\c\\\\&quot;, &quot;\034&quot;, 0, 1);
  x2(&quot;q[\\c\\\\]&quot;, &quot;q\034&quot;, 0, 2);
  x2(&quot;&quot;, &quot;a&quot;, 0, 0);
  x2(&quot;a&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;\\x61&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;aa&quot;, &quot;aa&quot;, 0, 2);
  x2(&quot;aaa&quot;, &quot;aaa&quot;, 0, 3);
  x2(&quot;aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&quot;, &quot;aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&quot;, 0, 35);
  x2(&quot;ab&quot;, &quot;ab&quot;, 0, 2);
  x2(&quot;b&quot;, &quot;ab&quot;, 1, 2);
  x2(&quot;bc&quot;, &quot;abc&quot;, 1, 3);
  x2(&quot;(?i:#RET#)&quot;, &quot;#INS##RET#&quot;, 5, 10);
  x2(&quot;\\17&quot;, &quot;\017&quot;, 0, 1);
  x2(&quot;\\x1f&quot;, &quot;\x1f&quot;, 0, 1);
  x2(&quot;a(?#....\\\\JJJJ)b&quot;, &quot;ab&quot;, 0, 2);
  x2(&quot;(?x)  G (o O(?-x)oO) g L&quot;, &quot;GoOoOgLe&quot;, 0, 7);
  x2(&quot;.&quot;, &quot;a&quot;, 0, 1);
  n(&quot;.&quot;, &quot;&quot;);
  x2(&quot;..&quot;, &quot;ab&quot;, 0, 2);
  x2(&quot;\\w&quot;, &quot;e&quot;, 0, 1);
  n(&quot;\\W&quot;, &quot;e&quot;);
  x2(&quot;\\s&quot;, &quot; &quot;, 0, 1);
  x2(&quot;\\S&quot;, &quot;b&quot;, 0, 1);
  x2(&quot;\\d&quot;, &quot;4&quot;, 0, 1);
  n(&quot;\\D&quot;, &quot;4&quot;);
  x2(&quot;\\b&quot;, &quot;z &quot;, 0, 0);
  x2(&quot;\\b&quot;, &quot; z&quot;, 1, 1);
  x2(&quot;\\B&quot;, &quot;zz &quot;, 1, 1);
  x2(&quot;\\B&quot;, &quot;z &quot;, 2, 2);
  x2(&quot;\\B&quot;, &quot; z&quot;, 0, 0);
  x2(&quot;[ab]&quot;, &quot;b&quot;, 0, 1);
  n(&quot;[ab]&quot;, &quot;c&quot;);
  x2(&quot;[a-z]&quot;, &quot;t&quot;, 0, 1);
  n(&quot;[^a]&quot;, &quot;a&quot;);
  x2(&quot;[^a]&quot;, &quot;\n&quot;, 0, 1);
  x2(&quot;[]]&quot;, &quot;]&quot;, 0, 1);
  n(&quot;[^]]&quot;, &quot;]&quot;);
  x2(&quot;[\\^]+&quot;, &quot;0^^1&quot;, 1, 3);
  x2(&quot;[b-]&quot;, &quot;b&quot;, 0, 1);
  x2(&quot;[b-]&quot;, &quot;-&quot;, 0, 1);
  x2(&quot;[\\w]&quot;, &quot;z&quot;, 0, 1);
  n(&quot;[\\w]&quot;, &quot; &quot;);
  x2(&quot;[\\W]&quot;, &quot;b$&quot;, 1, 2);
  x2(&quot;[\\d]&quot;, &quot;5&quot;, 0, 1);
  n(&quot;[\\d]&quot;, &quot;e&quot;);
  x2(&quot;[\\D]&quot;, &quot;t&quot;, 0, 1);
  n(&quot;[\\D]&quot;, &quot;3&quot;);
  x2(&quot;[\\s]&quot;, &quot; &quot;, 0, 1);
  n(&quot;[\\s]&quot;, &quot;a&quot;);
  x2(&quot;[\\S]&quot;, &quot;b&quot;, 0, 1);
  n(&quot;[\\S]&quot;, &quot; &quot;);
  x2(&quot;[\\w\\d]&quot;, &quot;2&quot;, 0, 1);
  n(&quot;[\\w\\d]&quot;, &quot; &quot;);
  x2(&quot;[[:upper:]]&quot;, &quot;B&quot;, 0, 1);
  x2(&quot;[*[:xdigit:]+]&quot;, &quot;+&quot;, 0, 1);
  x2(&quot;[*[:xdigit:]+]&quot;, &quot;GHIKK-9+*&quot;, 6, 7);
  x2(&quot;[*[:xdigit:]+]&quot;, &quot;-@^+&quot;, 3, 4);
  n(&quot;[[:upper]]&quot;, &quot;A&quot;);
  x2(&quot;[[:upper]]&quot;, &quot;:&quot;, 0, 1);
  x2(&quot;[\\044-\\047]&quot;, &quot;\046&quot;, 0, 1);
  x2(&quot;[\\x5a-\\x5c]&quot;, &quot;\x5b&quot;, 0, 1);
  x2(&quot;[\\x6A-\\x6D]&quot;, &quot;\x6c&quot;, 0, 1);
  n(&quot;[\\x6A-\\x6D]&quot;, &quot;\x6E&quot;);
  n(&quot;^[0-9A-F]+ 0+ UNDEF &quot;, &quot;75F 00000000 SECT14A notype ()    External    | _rb_apply&quot;);
  x2(&quot;[\\[]&quot;, &quot;[&quot;, 0, 1);
  x2(&quot;[\\]]&quot;, &quot;]&quot;, 0, 1);
  x2(&quot;[&amp;]&quot;, &quot;&amp;&quot;, 0, 1);
  x2(&quot;[[ab]]&quot;, &quot;b&quot;, 0, 1);
  x2(&quot;[[ab]c]&quot;, &quot;c&quot;, 0, 1);
  n(&quot;[[^a]]&quot;, &quot;a&quot;);
  n(&quot;[^[a]]&quot;, &quot;a&quot;);
  x2(&quot;[[ab]&amp;&amp;bc]&quot;, &quot;b&quot;, 0, 1);
  n(&quot;[[ab]&amp;&amp;bc]&quot;, &quot;a&quot;);
  n(&quot;[[ab]&amp;&amp;bc]&quot;, &quot;c&quot;);
  x2(&quot;[a-z&amp;&amp;b-y&amp;&amp;c-x]&quot;, &quot;w&quot;, 0, 1);
  n(&quot;[^a-z&amp;&amp;b-y&amp;&amp;c-x]&quot;, &quot;w&quot;);
  x2(&quot;[[^a&amp;&amp;a]&amp;&amp;a-z]&quot;, &quot;b&quot;, 0, 1);
  n(&quot;[[^a&amp;&amp;a]&amp;&amp;a-z]&quot;, &quot;a&quot;);
  x2(&quot;[[^a-z&amp;&amp;bcdef]&amp;&amp;[^c-g]]&quot;, &quot;h&quot;, 0, 1);
  n(&quot;[[^a-z&amp;&amp;bcdef]&amp;&amp;[^c-g]]&quot;, &quot;c&quot;);
  x2(&quot;[^[^abc]&amp;&amp;[^cde]]&quot;, &quot;c&quot;, 0, 1);
  x2(&quot;[^[^abc]&amp;&amp;[^cde]]&quot;, &quot;e&quot;, 0, 1);
  n(&quot;[^[^abc]&amp;&amp;[^cde]]&quot;, &quot;f&quot;);
  x2(&quot;[a-&amp;&amp;-a]&quot;, &quot;-&quot;, 0, 1);
  n(&quot;[a\\-&amp;&amp;\\-a]&quot;, &quot;&amp;&quot;);
  n(&quot;\\wabc&quot;, &quot; abc&quot;);
  x2(&quot;a\\Wbc&quot;, &quot;a bc&quot;, 0, 4);
  x2(&quot;a.b.c&quot;, &quot;aabbc&quot;, 0, 5);
  x2(&quot;.\\wb\\W..c&quot;, &quot;abb bcc&quot;, 0, 7);
  x2(&quot;\\s\\wzzz&quot;, &quot; zzzz&quot;, 0, 5);
  x2(&quot;aa.b&quot;, &quot;aabb&quot;, 0, 4);
  n(&quot;.a&quot;, &quot;ab&quot;);
  x2(&quot;.a&quot;, &quot;aa&quot;, 0, 2);
  x2(&quot;^a&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;^a$&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;^\\w$&quot;, &quot;a&quot;, 0, 1);
  n(&quot;^\\w$&quot;, &quot; &quot;);
  x2(&quot;^\\wab$&quot;, &quot;zab&quot;, 0, 3);
  x2(&quot;^\\wabcdef$&quot;, &quot;zabcdef&quot;, 0, 7);
  x2(&quot;^\\w...def$&quot;, &quot;zabcdef&quot;, 0, 7);
  x2(&quot;\\w\\w\\s\\Waaa\\d&quot;, &quot;aa  aaa4&quot;, 0, 8);
  x2(&quot;\\A\\Z&quot;, &quot;&quot;, 0, 0);
  x2(&quot;\\Axyz&quot;, &quot;xyz&quot;, 0, 3);
  x2(&quot;xyz\\Z&quot;, &quot;xyz&quot;, 0, 3);
  x2(&quot;xyz\\z&quot;, &quot;xyz&quot;, 0, 3);
  x2(&quot;a\\Z&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;\\Gaz&quot;, &quot;az&quot;, 0, 2);
  n(&quot;\\Gz&quot;, &quot;bza&quot;);
  n(&quot;az\\G&quot;, &quot;az&quot;);
  n(&quot;az\\A&quot;, &quot;az&quot;);
  n(&quot;a\\Az&quot;, &quot;az&quot;);
  x2(&quot;\\^\\$&quot;, &quot;^$&quot;, 0, 2);
  x2(&quot;^x?y&quot;, &quot;xy&quot;, 0, 2);
  x2(&quot;^(x?y)&quot;, &quot;xy&quot;, 0, 2);
  x2(&quot;\\w&quot;, &quot;_&quot;, 0, 1);
  n(&quot;\\W&quot;, &quot;_&quot;);
  x2(&quot;(?=z)z&quot;, &quot;z&quot;, 0, 1);
  n(&quot;(?=z).&quot;, &quot;a&quot;);
  x2(&quot;(?!z)a&quot;, &quot;a&quot;, 0, 1);
  n(&quot;(?!z)a&quot;, &quot;z&quot;);
  x2(&quot;(?i:a)&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;(?i:a)&quot;, &quot;A&quot;, 0, 1);
  x2(&quot;(?i:A)&quot;, &quot;a&quot;, 0, 1);
  n(&quot;(?i:A)&quot;, &quot;b&quot;);
  x2(&quot;(?i:[A-Z])&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;(?i:[f-m])&quot;, &quot;H&quot;, 0, 1);
  x2(&quot;(?i:[f-m])&quot;, &quot;h&quot;, 0, 1);
  n(&quot;(?i:[f-m])&quot;, &quot;e&quot;);
  x2(&quot;(?i:[A-c])&quot;, &quot;D&quot;, 0, 1);
  n(&quot;(?i:[^a-z])&quot;, &quot;A&quot;);
  n(&quot;(?i:[^a-z])&quot;, &quot;a&quot;);
  x2(&quot;(?i:[!-k])&quot;, &quot;Z&quot;, 0, 1);
  x2(&quot;(?i:[!-k])&quot;, &quot;7&quot;, 0, 1);
  x2(&quot;(?i:[T-}])&quot;, &quot;b&quot;, 0, 1);
  x2(&quot;(?i:[T-}])&quot;, &quot;{&quot;, 0, 1);
  x2(&quot;(?i:\\?a)&quot;, &quot;?A&quot;, 0, 2);
  x2(&quot;(?i:\\*A)&quot;, &quot;*a&quot;, 0, 2);
  n(&quot;.&quot;, &quot;\n&quot;);
  x2(&quot;(?m:.)&quot;, &quot;\n&quot;, 0, 1);
  x2(&quot;(?m:a.)&quot;, &quot;a\n&quot;, 0, 2);
  x2(&quot;(?m:.b)&quot;, &quot;a\nb&quot;, 1, 3);
  x2(&quot;.*abc&quot;, &quot;dddabdd\nddabc&quot;, 8, 13);
  x2(&quot;(?m:.*abc)&quot;, &quot;dddabddabc&quot;, 0, 10);
  n(&quot;(?i)(?-i)a&quot;, &quot;A&quot;);
  n(&quot;(?i)(?-i:a)&quot;, &quot;A&quot;);
  x2(&quot;a?&quot;, &quot;&quot;, 0, 0);
  x2(&quot;a?&quot;, &quot;b&quot;, 0, 0);
  x2(&quot;a?&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;a*&quot;, &quot;&quot;, 0, 0);
  x2(&quot;a*&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;a*&quot;, &quot;aaa&quot;, 0, 3);
  x2(&quot;a*&quot;, &quot;baaaa&quot;, 0, 0);
  n(&quot;a+&quot;, &quot;&quot;);
  x2(&quot;a+&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;a+&quot;, &quot;aaaa&quot;, 0, 4);
  x2(&quot;a+&quot;, &quot;aabbb&quot;, 0, 2);
  x2(&quot;a+&quot;, &quot;baaaa&quot;, 1, 5);
  x2(&quot;.?&quot;, &quot;&quot;, 0, 0);
  x2(&quot;.?&quot;, &quot;f&quot;, 0, 1);
  x2(&quot;.?&quot;, &quot;\n&quot;, 0, 0);
  x2(&quot;.*&quot;, &quot;&quot;, 0, 0);
  x2(&quot;.*&quot;, &quot;abcde&quot;, 0, 5);
  x2(&quot;.+&quot;, &quot;z&quot;, 0, 1);
  x2(&quot;.+&quot;, &quot;zdswer\n&quot;, 0, 6);
  x2(&quot;(.*)a\\1f&quot;, &quot;babfbac&quot;, 0, 4);
  x2(&quot;(.*)a\\1f&quot;, &quot;bacbabf&quot;, 3, 7);
  x2(&quot;((.*)a\\2f)&quot;, &quot;bacbabf&quot;, 3, 7);
  x2(&quot;(.*)a\\1f&quot;, &quot;baczzzzzz\nbazz\nzzzzbabf&quot;, 19, 23);
  x2(&quot;a|b&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;a|b&quot;, &quot;b&quot;, 0, 1);
  x2(&quot;|a&quot;, &quot;a&quot;, 0, 0);
  x2(&quot;(|a)&quot;, &quot;a&quot;, 0, 0);
  x2(&quot;ab|bc&quot;, &quot;ab&quot;, 0, 2);
  x2(&quot;ab|bc&quot;, &quot;bc&quot;, 0, 2);
  x2(&quot;z(?:ab|bc)&quot;, &quot;zbc&quot;, 0, 3);
  x2(&quot;a(?:ab|bc)c&quot;, &quot;aabc&quot;, 0, 4);
  x2(&quot;ab|(?:ac|az)&quot;, &quot;az&quot;, 0, 2);
  x2(&quot;a|b|c&quot;, &quot;dc&quot;, 1, 2);
  x2(&quot;a|b|cd|efg|h|ijk|lmn|o|pq|rstuvwx|yz&quot;, &quot;pqr&quot;, 0, 2);
  n(&quot;a|b|cd|efg|h|ijk|lmn|o|pq|rstuvwx|yz&quot;, &quot;mn&quot;);
  x2(&quot;a|^z&quot;, &quot;ba&quot;, 1, 2);
  x2(&quot;a|^z&quot;, &quot;za&quot;, 0, 1);
  x2(&quot;a|\\Gz&quot;, &quot;bza&quot;, 2, 3);
  x2(&quot;a|\\Gz&quot;, &quot;za&quot;, 0, 1);
  x2(&quot;a|\\Az&quot;, &quot;bza&quot;, 2, 3);
  x2(&quot;a|\\Az&quot;, &quot;za&quot;, 0, 1);
  x2(&quot;a|b\\Z&quot;, &quot;ba&quot;, 1, 2);
  x2(&quot;a|b\\Z&quot;, &quot;b&quot;, 0, 1);
  x2(&quot;a|b\\z&quot;, &quot;ba&quot;, 1, 2);
  x2(&quot;a|b\\z&quot;, &quot;b&quot;, 0, 1);
  x2(&quot;\\w|\\s&quot;, &quot; &quot;, 0, 1);
  n(&quot;\\w|\\w&quot;, &quot; &quot;);
  x2(&quot;\\w|%&quot;, &quot;%&quot;, 0, 1);
  x2(&quot;\\w|[&amp;$]&quot;, &quot;&amp;&quot;, 0, 1);
  x2(&quot;[b-d]|[^e-z]&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;(?:a|[c-f])|bz&quot;, &quot;dz&quot;, 0, 1);
  x2(&quot;(?:a|[c-f])|bz&quot;, &quot;bz&quot;, 0, 2);
  x2(&quot;abc|(?=zz)..f&quot;, &quot;zzf&quot;, 0, 3);
  x2(&quot;abc|(?!zz)..f&quot;, &quot;abf&quot;, 0, 3);
  x2(&quot;(?=za)..a|(?=zz)..a&quot;, &quot;zza&quot;, 0, 3);
  n(&quot;(?&gt;a|abd)c&quot;, &quot;abdc&quot;);
  x2(&quot;(?&gt;abd|a)c&quot;, &quot;abdc&quot;, 0, 4);
  x2(&quot;a?|b&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;a?|b&quot;, &quot;b&quot;, 0, 0);
  x2(&quot;a?|b&quot;, &quot;&quot;, 0, 0);
  x2(&quot;a*|b&quot;, &quot;aa&quot;, 0, 2);
  x2(&quot;a*|b*&quot;, &quot;ba&quot;, 0, 0);
  x2(&quot;a*|b*&quot;, &quot;ab&quot;, 0, 1);
  x2(&quot;a+|b*&quot;, &quot;&quot;, 0, 0);
  x2(&quot;a+|b*&quot;, &quot;bbb&quot;, 0, 3);
  x2(&quot;a+|b*&quot;, &quot;abbb&quot;, 0, 1);
  n(&quot;a+|b+&quot;, &quot;&quot;);
  x2(&quot;(a|b)?&quot;, &quot;b&quot;, 0, 1);
  x2(&quot;(a|b)*&quot;, &quot;ba&quot;, 0, 2);
  x2(&quot;(a|b)+&quot;, &quot;bab&quot;, 0, 3);
  x2(&quot;(ab|ca)+&quot;, &quot;caabbc&quot;, 0, 4);
  x2(&quot;(ab|ca)+&quot;, &quot;aabca&quot;, 1, 5);
  x2(&quot;(ab|ca)+&quot;, &quot;abzca&quot;, 0, 2);
  x2(&quot;(a|bab)+&quot;, &quot;ababa&quot;, 0, 5);
  x2(&quot;(a|bab)+&quot;, &quot;ba&quot;, 1, 2);
  x2(&quot;(a|bab)+&quot;, &quot;baaaba&quot;, 1, 4);
  x2(&quot;(?:a|b)(?:a|b)&quot;, &quot;ab&quot;, 0, 2);
  x2(&quot;(?:a*|b*)(?:a*|b*)&quot;, &quot;aaabbb&quot;, 0, 3);
  x2(&quot;(?:a*|b*)(?:a+|b+)&quot;, &quot;aaabbb&quot;, 0, 6);
  x2(&quot;(?:a+|b+){2}&quot;, &quot;aaabbb&quot;, 0, 6);
  x2(&quot;h{0,}&quot;, &quot;hhhh&quot;, 0, 4);
  x2(&quot;(?:a+|b+){1,2}&quot;, &quot;aaabbb&quot;, 0, 6);
  n(&quot;ax{2}*a&quot;, &quot;0axxxa1&quot;);
  n(&quot;a.{0,2}a&quot;, &quot;0aXXXa0&quot;);
  n(&quot;a.{0,2}?a&quot;, &quot;0aXXXa0&quot;);
  n(&quot;a.{0,2}?a&quot;, &quot;0aXXXXa0&quot;);
  x2(&quot;^a{2,}?a$&quot;, &quot;aaa&quot;, 0, 3);
  x2(&quot;^[a-z]{2,}?$&quot;, &quot;aaa&quot;, 0, 3);
  x2(&quot;(?:a+|\\Ab*)cc&quot;, &quot;cc&quot;, 0, 2);
  n(&quot;(?:a+|\\Ab*)cc&quot;, &quot;abcc&quot;);
  x2(&quot;(?:^a+|b+)*c&quot;, &quot;aabbbabc&quot;, 6, 8);
  x2(&quot;(?:^a+|b+)*c&quot;, &quot;aabbbbc&quot;, 0, 7);
  x2(&quot;a|(?i)c&quot;, &quot;C&quot;, 0, 1);
  x2(&quot;(?i)c|a&quot;, &quot;C&quot;, 0, 1);
  x2(&quot;(?i)c|a&quot;, &quot;A&quot;, 0, 1);
  x2(&quot;(?i:c)|a&quot;, &quot;C&quot;, 0, 1);
  n(&quot;(?i:c)|a&quot;, &quot;A&quot;);
  x2(&quot;[abc]?&quot;, &quot;abc&quot;, 0, 1);
  x2(&quot;[abc]*&quot;, &quot;abc&quot;, 0, 3);
  x2(&quot;[^abc]*&quot;, &quot;abc&quot;, 0, 0);
  n(&quot;[^abc]+&quot;, &quot;abc&quot;);
  x2(&quot;a?\?&quot;, &quot;aaa&quot;, 0, 0);
  x2(&quot;ba?\?b&quot;, &quot;bab&quot;, 0, 3);
  x2(&quot;a*?&quot;, &quot;aaa&quot;, 0, 0);
  x2(&quot;ba*?&quot;, &quot;baa&quot;, 0, 1);
  x2(&quot;ba*?b&quot;, &quot;baab&quot;, 0, 4);
  x2(&quot;a+?&quot;, &quot;aaa&quot;, 0, 1);
  x2(&quot;ba+?&quot;, &quot;baa&quot;, 0, 2);
  x2(&quot;ba+?b&quot;, &quot;baab&quot;, 0, 4);
  x2(&quot;(?:a?)?\?&quot;, &quot;a&quot;, 0, 0);
  x2(&quot;(?:a?\?)?&quot;, &quot;a&quot;, 0, 0);
  x2(&quot;(?:a?)+?&quot;, &quot;aaa&quot;, 0, 1);
  x2(&quot;(?:a+)?\?&quot;, &quot;aaa&quot;, 0, 0);
  x2(&quot;(?:a+)?\?b&quot;, &quot;aaab&quot;, 0, 4);
  x2(&quot;(?:ab)?{2}&quot;, &quot;&quot;, 0, 0);
  x2(&quot;(?:ab)?{2}&quot;, &quot;ababa&quot;, 0, 4);
  x2(&quot;(?:ab)*{0}&quot;, &quot;ababa&quot;, 0, 0);
  x2(&quot;(?:ab){3,}&quot;, &quot;abababab&quot;, 0, 8);
  n(&quot;(?:ab){3,}&quot;, &quot;abab&quot;);
  x2(&quot;(?:ab){2,4}&quot;, &quot;ababab&quot;, 0, 6);
  x2(&quot;(?:ab){2,4}&quot;, &quot;ababababab&quot;, 0, 8);
  x2(&quot;(?:ab){2,4}?&quot;, &quot;ababababab&quot;, 0, 4);
  x2(&quot;(?:ab){,}&quot;, &quot;ab{,}&quot;, 0, 5);
  x2(&quot;(?:abc)+?{2}&quot;, &quot;abcabcabc&quot;, 0, 6);
  x2(&quot;(?:X*)(?i:xa)&quot;, &quot;XXXa&quot;, 0, 4);
  x2(&quot;(d+)([^abc]z)&quot;, &quot;dddz&quot;, 0, 4);
  x2(&quot;([^abc]*)([^abc]z)&quot;, &quot;dddz&quot;, 0, 4);
  x2(&quot;(\\w+)(\\wz)&quot;, &quot;dddz&quot;, 0, 4);
  x3(&quot;(a)&quot;, &quot;a&quot;, 0, 1, 1);
  x3(&quot;(ab)&quot;, &quot;ab&quot;, 0, 2, 1);
  x2(&quot;((ab))&quot;, &quot;ab&quot;, 0, 2);
  x3(&quot;((ab))&quot;, &quot;ab&quot;, 0, 2, 1);
  x3(&quot;((ab))&quot;, &quot;ab&quot;, 0, 2, 2);
  x3(&quot;((((((((((((((((((((ab))))))))))))))))))))&quot;, &quot;ab&quot;, 0, 2, 20);
  x3(&quot;(ab)(cd)&quot;, &quot;abcd&quot;, 0, 2, 1);
  x3(&quot;(ab)(cd)&quot;, &quot;abcd&quot;, 2, 4, 2);
  x3(&quot;()(a)bc(def)ghijk&quot;, &quot;abcdefghijk&quot;, 3, 6, 3);
  x3(&quot;(()(a)bc(def)ghijk)&quot;, &quot;abcdefghijk&quot;, 3, 6, 4);
  x2(&quot;(^a)&quot;, &quot;a&quot;, 0, 1);
  x3(&quot;(a)|(a)&quot;, &quot;ba&quot;, 1, 2, 1);
  x3(&quot;(^a)|(a)&quot;, &quot;ba&quot;, 1, 2, 2);
  x3(&quot;(a?)&quot;, &quot;aaa&quot;, 0, 1, 1);
  x3(&quot;(a*)&quot;, &quot;aaa&quot;, 0, 3, 1);
  x3(&quot;(a*)&quot;, &quot;&quot;, 0, 0, 1);
  x3(&quot;(a+)&quot;, &quot;aaaaaaa&quot;, 0, 7, 1);
  x3(&quot;(a+|b*)&quot;, &quot;bbbaa&quot;, 0, 3, 1);
  x3(&quot;(a+|b?)&quot;, &quot;bbbaa&quot;, 0, 1, 1);
  x3(&quot;(abc)?&quot;, &quot;abc&quot;, 0, 3, 1);
  x3(&quot;(abc)*&quot;, &quot;abc&quot;, 0, 3, 1);
  x3(&quot;(abc)+&quot;, &quot;abc&quot;, 0, 3, 1);
  x3(&quot;(xyz|abc)+&quot;, &quot;abc&quot;, 0, 3, 1);
  x3(&quot;([xyz][abc]|abc)+&quot;, &quot;abc&quot;, 0, 3, 1);
  x3(&quot;((?i:abc))&quot;, &quot;AbC&quot;, 0, 3, 1);
  x2(&quot;(abc)(?i:\\1)&quot;, &quot;abcABC&quot;, 0, 6);
  x3(&quot;((?m:a.c))&quot;, &quot;a\nc&quot;, 0, 3, 1);
  x3(&quot;((?=az)a)&quot;, &quot;azb&quot;, 0, 1, 1);
  x3(&quot;abc|(.abd)&quot;, &quot;zabd&quot;, 0, 4, 1);
  x2(&quot;(?:abc)|(ABC)&quot;, &quot;abc&quot;, 0, 3);
  x3(&quot;(?i:(abc))|(zzz)&quot;, &quot;ABC&quot;, 0, 3, 1);
  x3(&quot;a*(.)&quot;, &quot;aaaaz&quot;, 4, 5, 1);
  x3(&quot;a*?(.)&quot;, &quot;aaaaz&quot;, 0, 1, 1);
  x3(&quot;a*?(c)&quot;, &quot;aaaac&quot;, 4, 5, 1);
  x3(&quot;[bcd]a*(.)&quot;, &quot;caaaaz&quot;, 5, 6, 1);
  x3(&quot;(\\Abb)cc&quot;, &quot;bbcc&quot;, 0, 2, 1);
  n(&quot;(\\Abb)cc&quot;, &quot;zbbcc&quot;);
  x3(&quot;(^bb)cc&quot;, &quot;bbcc&quot;, 0, 2, 1);
  n(&quot;(^bb)cc&quot;, &quot;zbbcc&quot;);
  x3(&quot;cc(bb$)&quot;, &quot;ccbb&quot;, 2, 4, 1);
  n(&quot;cc(bb$)&quot;, &quot;ccbbb&quot;);
  n(&quot;(\\1)&quot;, &quot;&quot;);
  n(&quot;\\1(a)&quot;, &quot;aa&quot;);
  n(&quot;(a(b)\\1)\\2+&quot;, &quot;ababb&quot;);
  n(&quot;(?:(?:\\1|z)(a))+$&quot;, &quot;zaa&quot;);
  x2(&quot;(?:(?:\\1|z)(a))+$&quot;, &quot;zaaa&quot;, 0, 4);
  x2(&quot;(a)(?=\\1)&quot;, &quot;aa&quot;, 0, 1);
  n(&quot;(a)$|\\1&quot;, &quot;az&quot;);
  x2(&quot;(a)\\1&quot;, &quot;aa&quot;, 0, 2);
  n(&quot;(a)\\1&quot;, &quot;ab&quot;);
  x2(&quot;(a?)\\1&quot;, &quot;aa&quot;, 0, 2);
  x2(&quot;(a?\?)\\1&quot;, &quot;aa&quot;, 0, 0);
  x2(&quot;(a*)\\1&quot;, &quot;aaaaa&quot;, 0, 4);
  x3(&quot;(a*)\\1&quot;, &quot;aaaaa&quot;, 0, 2, 1);
  x2(&quot;a(b*)\\1&quot;, &quot;abbbb&quot;, 0, 5);
  x2(&quot;a(b*)\\1&quot;, &quot;ab&quot;, 0, 1);
  x2(&quot;(a*)(b*)\\1\\2&quot;, &quot;aaabbaaabb&quot;, 0, 10);
  x2(&quot;(a*)(b*)\\2&quot;, &quot;aaabbbb&quot;, 0, 7);
  x2(&quot;(((((((a*)b))))))c\\7&quot;, &quot;aaabcaaa&quot;, 0, 8);
  x3(&quot;(((((((a*)b))))))c\\7&quot;, &quot;aaabcaaa&quot;, 0, 3, 7);
  x2(&quot;(a)(b)(c)\\2\\1\\3&quot;, &quot;abcbac&quot;, 0, 6);
  x2(&quot;([a-d])\\1&quot;, &quot;cc&quot;, 0, 2);
  x2(&quot;(\\w\\d\\s)\\1&quot;, &quot;f5 f5 &quot;, 0, 6);
  n(&quot;(\\w\\d\\s)\\1&quot;, &quot;f5 f5&quot;);
  x2(&quot;(who|[a-c]{3})\\1&quot;, &quot;whowho&quot;, 0, 6);
  x2(&quot;...(who|[a-c]{3})\\1&quot;, &quot;abcwhowho&quot;, 0, 9);
  x2(&quot;(who|[a-c]{3})\\1&quot;, &quot;cbccbc&quot;, 0, 6);
  x2(&quot;(^a)\\1&quot;, &quot;aa&quot;, 0, 2);
  n(&quot;(^a)\\1&quot;, &quot;baa&quot;);
  n(&quot;(a$)\\1&quot;, &quot;aa&quot;);
  n(&quot;(ab\\Z)\\1&quot;, &quot;ab&quot;);
  x2(&quot;(a*\\Z)\\1&quot;, &quot;a&quot;, 1, 1);
  x2(&quot;.(a*\\Z)\\1&quot;, &quot;ba&quot;, 1, 2);
  x3(&quot;(.(abc)\\2)&quot;, &quot;zabcabc&quot;, 0, 7, 1);
  x3(&quot;(.(..\\d.)\\2)&quot;, &quot;z12341234&quot;, 0, 9, 1);
  x2(&quot;((?i:az))\\1&quot;, &quot;AzAz&quot;, 0, 4);
  n(&quot;((?i:az))\\1&quot;, &quot;Azaz&quot;);
  x2(&quot;(?&lt;=a)b&quot;, &quot;ab&quot;, 1, 2);
  n(&quot;(?&lt;=a)b&quot;, &quot;bb&quot;);
  x2(&quot;(?&lt;=a|b)b&quot;, &quot;bb&quot;, 1, 2);
  x2(&quot;(?&lt;=a|bc)b&quot;, &quot;bcb&quot;, 2, 3);
  x2(&quot;(?&lt;=a|bc)b&quot;, &quot;ab&quot;, 1, 2);
  x2(&quot;(?&lt;=a|bc||defghij|klmnopq|r)z&quot;, &quot;rz&quot;, 1, 2);
  x2(&quot;(a)\\g&lt;1&gt;&quot;, &quot;aa&quot;, 0, 2);
  x2(&quot;(?&lt;!a)b&quot;, &quot;cb&quot;, 1, 2);
  n(&quot;(?&lt;!a)b&quot;, &quot;ab&quot;);
  x2(&quot;(?&lt;!a|bc)b&quot;, &quot;bbb&quot;, 0, 1);
  n(&quot;(?&lt;!a|bc)z&quot;, &quot;bcz&quot;);
  x2(&quot;(?&lt;name1&gt;a)&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;(?&lt;name_2&gt;ab)\\g&lt;name_2&gt;&quot;, &quot;abab&quot;, 0, 4);
  x2(&quot;(?&lt;name_3&gt;.zv.)\\k&lt;name_3&gt;&quot;, &quot;azvbazvb&quot;, 0, 8);
  x2(&quot;(?&lt;=\\g&lt;ab&gt;)|-\\zEND (?&lt;ab&gt;XyZ)&quot;, &quot;XyZ&quot;, 3, 3);
  x2(&quot;(?&lt;n&gt;|a\\g&lt;n&gt;)+&quot;, &quot;&quot;, 0, 0);
  x2(&quot;(?&lt;n&gt;|\\(\\g&lt;n&gt;\\))+$&quot;, &quot;()(())&quot;, 0, 6);
  x3(&quot;\\g&lt;n&gt;(?&lt;n&gt;.){0}&quot;, &quot;X&quot;, 0, 1, 1);
  x2(&quot;\\g&lt;n&gt;(abc|df(?&lt;n&gt;.YZ){2,8}){0}&quot;, &quot;XYZ&quot;, 0, 3);
  x2(&quot;\\A(?&lt;n&gt;(a\\g&lt;n&gt;)|)\\z&quot;, &quot;aaaa&quot;, 0, 4);
  x2(&quot;(?&lt;n&gt;|\\g&lt;m&gt;\\g&lt;n&gt;)\\z|\\zEND (?&lt;m&gt;a|(b)\\g&lt;m&gt;)&quot;, &quot;bbbbabba&quot;, 0, 8);
  x2(&quot;(?&lt;name1240&gt;\\w+\\sx)a+\\k&lt;name1240&gt;&quot;, &quot;  fg xaaaaaaaafg x&quot;, 2, 18);
  x3(&quot;(z)()()(?&lt;_9&gt;a)\\g&lt;_9&gt;&quot;, &quot;zaa&quot;, 2, 3, 1);
  x2(&quot;(.)(((?&lt;_&gt;a)))\\k&lt;_&gt;&quot;, &quot;zaa&quot;, 0, 3);
  x2(&quot;((?&lt;name1&gt;\\d)|(?&lt;name2&gt;\\w))(\\k&lt;name1&gt;|\\k&lt;name2&gt;)&quot;, &quot;ff&quot;, 0, 2);
  x2(&quot;(?:(?&lt;x&gt;)|(?&lt;x&gt;efg))\\k&lt;x&gt;&quot;, &quot;&quot;, 0, 0);
  x2(&quot;(?:(?&lt;x&gt;abc)|(?&lt;x&gt;efg))\\k&lt;x&gt;&quot;, &quot;abcefgefg&quot;, 3, 9);
  n(&quot;(?:(?&lt;x&gt;abc)|(?&lt;x&gt;efg))\\k&lt;x&gt;&quot;, &quot;abcefg&quot;);
  x2(&quot;(?:(?&lt;n1&gt;.)|(?&lt;n1&gt;..)|(?&lt;n1&gt;...)|(?&lt;n1&gt;....)|(?&lt;n1&gt;.....)|(?&lt;n1&gt;......)|(?&lt;n1&gt;.......)|(?&lt;n1&gt;........)|(?&lt;n1&gt;.........)|(?&lt;n1&gt;..........)|(?&lt;n1&gt;...........)|(?&lt;n1&gt;............)|(?&lt;n1&gt;.............)|(?&lt;n1&gt;..............))\\k&lt;n1&gt;$&quot;, &quot;a-pyumpyum&quot;, 2, 10);
  x3(&quot;(?:(?&lt;n1&gt;.)|(?&lt;n1&gt;..)|(?&lt;n1&gt;...)|(?&lt;n1&gt;....)|(?&lt;n1&gt;.....)|(?&lt;n1&gt;......)|(?&lt;n1&gt;.......)|(?&lt;n1&gt;........)|(?&lt;n1&gt;.........)|(?&lt;n1&gt;..........)|(?&lt;n1&gt;...........)|(?&lt;n1&gt;............)|(?&lt;n1&gt;.............)|(?&lt;n1&gt;..............))\\k&lt;n1&gt;$&quot;, &quot;xxxxabcdefghijklmnabcdefghijklmn&quot;, 4, 18, 14);
  x3(&quot;(?&lt;name1&gt;)(?&lt;name2&gt;)(?&lt;name3&gt;)(?&lt;name4&gt;)(?&lt;name5&gt;)(?&lt;name6&gt;)(?&lt;name7&gt;)(?&lt;name8&gt;)(?&lt;name9&gt;)(?&lt;name10&gt;)(?&lt;name11&gt;)(?&lt;name12&gt;)(?&lt;name13&gt;)(?&lt;name14&gt;)(?&lt;name15&gt;)(?&lt;name16&gt;aaa)(?&lt;name17&gt;)$&quot;, &quot;aaa&quot;, 0, 3, 16);
  x2(&quot;(?&lt;foo&gt;a|\\(\\g&lt;foo&gt;\\))&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;(?&lt;foo&gt;a|\\(\\g&lt;foo&gt;\\))&quot;, &quot;((((((a))))))&quot;, 0, 13);
  x3(&quot;(?&lt;foo&gt;a|\\(\\g&lt;foo&gt;\\))&quot;, &quot;((((((((a))))))))&quot;, 0, 17, 1);
  x2(&quot;\\g&lt;bar&gt;|\\zEND(?&lt;bar&gt;.*abc$)&quot;, &quot;abcxxxabc&quot;, 0, 9);
  x2(&quot;\\g&lt;1&gt;|\\zEND(.a.)&quot;, &quot;bac&quot;, 0, 3);
  x3(&quot;\\g&lt;_A&gt;\\g&lt;_A&gt;|\\zEND(.a.)(?&lt;_A&gt;.b.)&quot;, &quot;xbxyby&quot;, 3, 6, 1);
  x2(&quot;\\A(?:\\g&lt;pon&gt;|\\g&lt;pan&gt;|\\zEND  (?&lt;pan&gt;a|c\\g&lt;pon&gt;c)(?&lt;pon&gt;b|d\\g&lt;pan&gt;d))$&quot;, &quot;cdcbcdc&quot;, 0, 7);
  x2(&quot;\\A(?&lt;n&gt;|a\\g&lt;m&gt;)\\z|\\zEND (?&lt;m&gt;\\g&lt;n&gt;)&quot;, &quot;aaaa&quot;, 0, 4);
  x2(&quot;(?&lt;n&gt;(a|b\\g&lt;n&gt;c){3,5})&quot;, &quot;baaaaca&quot;, 1, 5);
  x2(&quot;(?&lt;n&gt;(a|b\\g&lt;n&gt;c){3,5})&quot;, &quot;baaaacaaaaa&quot;, 0, 10);
  x2(&quot;(?&lt;pare&gt;\\(([^\\(\\)]++|\\g&lt;pare&gt;)*+\\))&quot;, &quot;((a))&quot;, 0, 5);
  x2(&quot;()*\\1&quot;, &quot;&quot;, 0, 0);
  x2(&quot;(?:()|())*\\1\\2&quot;, &quot;&quot;, 0, 0);
  x3(&quot;(?:\\1a|())*&quot;, &quot;a&quot;, 0, 0, 1);
  x2(&quot;x((.)*)*x&quot;, &quot;0x1x2x3&quot;, 1, 6);
  x2(&quot;x((.)*)*x(?i:\\1)\\Z&quot;, &quot;0x1x2x1X2&quot;, 1, 9);
  x2(&quot;(?:()|()|()|()|()|())*\\2\\5&quot;, &quot;&quot;, 0, 0);
  x2(&quot;(?:()|()|()|(x)|()|())*\\2b\\5&quot;, &quot;b&quot;, 0, 1);
  x2(&quot;[0-9-a]&quot;, &quot;-&quot;, 0, 1);   // PR#44
  n(&quot;[0-9-a]&quot;, &quot;:&quot;);          // PR#44
  x3(&quot;(\\(((?:[^(]|\\g&lt;1&gt;)*)\\))&quot;, &quot;(abc)(abc)&quot;, 1, 4, 2); // PR#43
  x2(&quot;\\o{101}&quot;, &quot;A&quot;, 0, 1);
  x2(&quot;(?:\\k&#039;+1&#039;B|(A)C)*&quot;, &quot;ACAB&quot;, 0, 4); // relative backref by positive number
  x2(&quot;\\g&lt;+2&gt;(abc)(ABC){0}&quot;, &quot;ABCabc&quot;, 0, 6); // relative call by positive number
  x2(&quot;A\\g&#039;0&#039;|B()&quot;, &quot;AAAAB&quot;, 0, 5);
  x3(&quot;(A\\g&#039;0&#039;)|B&quot;, &quot;AAAAB&quot;, 0, 5, 1);
  x2(&quot;(a*)(?(1))aa&quot;, &quot;aaaaa&quot;, 0, 5);
  x2(&quot;(a*)(?(-1))aa&quot;, &quot;aaaaa&quot;, 0, 5);
  x2(&quot;(?&lt;name&gt;aaa)(?(&#039;name&#039;))aa&quot;, &quot;aaaaa&quot;, 0, 5);
  x2(&quot;(a)(?(1)aa|bb)a&quot;, &quot;aaaaa&quot;, 0, 4);
  x2(&quot;(?:aa|())(?(&lt;1&gt;)aa|bb)a&quot;, &quot;aabba&quot;, 0, 5);
  x2(&quot;(?:aa|())(?(&#039;1&#039;)aa|bb|cc)a&quot;, &quot;aacca&quot;, 0, 5);
  x3(&quot;(a*)(?(1)aa|a)b&quot;, &quot;aaab&quot;, 0, 1, 1);
  n(&quot;(a)(?(1)a|b)c&quot;, &quot;abc&quot;);
  x2(&quot;(a)(?(1)|)c&quot;, &quot;ac&quot;, 0, 2);
  n(&quot;(?()aaa|bbb)&quot;, &quot;bbb&quot;);
  x2(&quot;(a)(?(1+0)b|c)d&quot;, &quot;abd&quot;, 0, 3);
  x2(&quot;(?:(?&#039;name&#039;a)|(?&#039;name&#039;b))(?(&#039;name&#039;)c|d)e&quot;, &quot;ace&quot;, 0, 3);
  x2(&quot;(?:(?&#039;name&#039;a)|(?&#039;name&#039;b))(?(&#039;name&#039;)c|d)e&quot;, &quot;bce&quot;, 0, 3);
  x2(&quot;\\R&quot;, &quot;\r\n&quot;, 0, 2);
  x2(&quot;\\R&quot;, &quot;\r&quot;, 0, 1);
  x2(&quot;\\R&quot;, &quot;\n&quot;, 0, 1);
  x2(&quot;\\R&quot;, &quot;\x0b&quot;, 0, 1);
  n(&quot;\\R\\n&quot;, &quot;\r\n&quot;);
  x2(&quot;\\N&quot;, &quot;a&quot;, 0, 1);
  n(&quot;\\N&quot;, &quot;\n&quot;);
  n(&quot;(?m:\\N)&quot;, &quot;\n&quot;);
  n(&quot;(?-m:\\N)&quot;, &quot;\n&quot;);
  x2(&quot;\\O&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;\\O&quot;, &quot;\n&quot;, 0, 1);
  x2(&quot;(?m:\\O)&quot;, &quot;\n&quot;, 0, 1);
  x2(&quot;(?-m:\\O)&quot;, &quot;\n&quot;, 0, 1);
  x2(&quot;\\K&quot;, &quot;a&quot;, 0, 0);
  x2(&quot;a\\K&quot;, &quot;a&quot;, 1, 1);
  x2(&quot;a\\Kb&quot;, &quot;ab&quot;, 1, 2);
  x2(&quot;(a\\Kb|ac\\Kd)&quot;, &quot;acd&quot;, 2, 3);
  x2(&quot;(a\\Kb|\\Kac\\K)*&quot;, &quot;acababacab&quot;, 9, 10);

  x2(&quot;(?~)&quot;, &quot;&quot;, 0, 0);
  x2(&quot;(?~)&quot;, &quot;A&quot;, 0, 0);
  x2(&quot;aaaaa(?~)&quot;, &quot;aaaaaaaaaa&quot;, 0, 5);
  x2(&quot;(?~(?:|aaa))&quot;, &quot;aaa&quot;, 0, 0);
  x2(&quot;(?~aaa|)&quot;, &quot;aaa&quot;, 0, 0);
  x2(&quot;a(?~(?~)).&quot;, &quot;abcdefghijklmnopqrstuvwxyz&quot;, 0, 26); // !!!
  x2(&quot;/\\*(?~\\*/)\\*/&quot;, &quot;/* */ */&quot;, 0, 5);
  x2(&quot;(?~\\w+)zzzzz&quot;, &quot;zzzzz&quot;, 0, 5);
  x2(&quot;(?~\\w*)zzzzz&quot;, &quot;zzzzz&quot;, 0, 5);
  x2(&quot;(?~A.C|B)&quot;, &quot;ABC&quot;, 0, 0);
  x2(&quot;(?~XYZ|ABC)a&quot;, &quot;ABCa&quot;, 1, 4);
  x2(&quot;(?~XYZ|ABC)a&quot;, &quot;aABCa&quot;, 0, 1);
  x2(&quot;&lt;[^&gt;]*&gt;(?~[&lt;&gt;])&lt;/[^&gt;]*&gt;&quot;, &quot;&lt;a&gt;vvv&lt;/a&gt;   &lt;b&gt;  &lt;/b&gt;&quot;, 0, 10);
  x2(&quot;(?~ab)&quot;, &quot;ccc\ndab&quot;, 0, 5);
  x2(&quot;(?m:(?~ab))&quot;, &quot;ccc\ndab&quot;, 0, 5);
  x2(&quot;(?-m:(?~ab))&quot;, &quot;ccc\ndab&quot;, 0, 5);
  x2(&quot;(?~abc)xyz&quot;, &quot;xyz012345678901234567890123456789abc&quot;, 0, 3);

  // absent with expr
  x2(&quot;(?~|78|\\d*)&quot;, &quot;123456789&quot;, 0, 6);
  x2(&quot;(?~|def|(?:abc|de|f){0,100})&quot;, &quot;abcdedeabcfdefabc&quot;, 0, 11);
  x2(&quot;(?~|ab|.*)&quot;, &quot;ccc\nddd&quot;, 0, 3);
  x2(&quot;(?~|ab|\\O*)&quot;, &quot;ccc\ndab&quot;, 0, 5);
  x2(&quot;(?~|ab|\\O{2,10})&quot;, &quot;ccc\ndab&quot;, 0, 5);
  x2(&quot;(?~|ab|\\O{1,10})&quot;, &quot;ab&quot;, 1, 2);
  n(&quot;(?~|ab|\\O{2,10})&quot;, &quot;ab&quot;);
  x2(&quot;(?~|abc|\\O{1,10})&quot;, &quot;abc&quot;, 1, 3);
  x2(&quot;(?~|ab|\\O{5,10})|abc&quot;, &quot;abc&quot;, 0, 3);
  x2(&quot;(?~|ab|\\O{1,10})&quot;, &quot;cccccccccccab&quot;, 0, 10);
  x2(&quot;(?~|aaa|)&quot;, &quot;aaa&quot;, 0, 0);
  x2(&quot;(?~||a*)&quot;, &quot;aaaaaa&quot;, 0, 0);
  x2(&quot;(?~||a*?)&quot;, &quot;aaaaaa&quot;, 0, 0);
  x2(&quot;(a)(?~|b|\\1)&quot;, &quot;aaaaaa&quot;, 0, 2);
  x2(&quot;(a)(?~|bb|(?:a\\1)*)&quot;, &quot;aaaaaa&quot;, 0, 5);
  x2(&quot;(b|c)(?~|abac|(?:a\\1)*)&quot;, &quot;abababacabab&quot;, 1, 4);
  n(&quot;(?~|c|a*+)a&quot;, &quot;aaaaa&quot;);
  x2(&quot;(?~|aaaaa|a*+)&quot;, &quot;aaaaa&quot;, 0, 0);
  x2(&quot;(?~|aaaaaa|a*+)b&quot;, &quot;aaaaaab&quot;, 1, 7);
  x2(&quot;(?~|abcd|(?&gt;))&quot;, &quot;zzzabcd&quot;, 0, 0);
  x2(&quot;(?~|abc|a*?)&quot;, &quot;aaaabc&quot;, 0, 0);

  // absent stopper
  x2(&quot;(?~|abc)a*&quot;, &quot;aaaaaabc&quot;, 0, 5);
  x2(&quot;(?~|abc)a*z|aaaaaabc&quot;, &quot;aaaaaabc&quot;, 0, 8);
  x2(&quot;(?~|aaaaaa)a*&quot;, &quot;aaaaaa&quot;, 0, 0);
  x2(&quot;(?~|abc)aaaa|aaaabc&quot;, &quot;aaaabc&quot;, 0, 6);
  x2(&quot;(?&gt;(?~|abc))aaaa|aaaabc&quot;, &quot;aaaabc&quot;, 0, 6);
  x2(&quot;(?~|)a&quot;, &quot;a&quot;, 0, 1);
  n(&quot;(?~|a)a&quot;, &quot;a&quot;);
  x2(&quot;(?~|a)(?~|)a&quot;, &quot;a&quot;, 0, 1);
  x2(&quot;(?~|a).*(?~|)a&quot;, &quot;bbbbbbbbbbbbbbbbbbbba&quot;, 0, 21);
  x2(&quot;(?~|abc).*(xyz|pqr)(?~|)abc&quot;, &quot;aaaaxyzaaapqrabc&quot;, 0, 16);
  x2(&quot;(?~|abc).*(xyz|pqr)(?~|)abc&quot;, &quot;aaaaxyzaaaabcpqrabc&quot;, 11, 19);
  n(&quot;\\A(?~|abc).*(xyz|pqrabc)(?~|)abc&quot;, &quot;aaaaxyzaaaabcpqrabcabc&quot;);
  x2(&quot;(?~|a)(?~|)c|ab|a|&quot;, &quot;ab&quot;, 0, 2);
  x2(&quot;(?~|a)((?~|)c|ab|a|)&quot;, &quot;ab&quot;, 0, 0);
  x2(&quot;(?~|a)((?&gt;(?~|))c|ab|a|)&quot;, &quot;ab&quot;, 0, 0);

  // extended grapheme cluster
  // CR + LF
  n(&quot;.\\y\\O&quot;, &quot;\x0d\x0a&quot;);
  x2(&quot;.\\Y\\O&quot;, &quot;\x0d\x0a&quot;, 0, 2);
  n(&quot;\\X\\X&quot;, &quot;\x0d\x0a&quot;);
  x2(&quot;^\\X$&quot;, &quot;\x0d\x0a&quot;, 0, 2);
  x2(&quot;^\\X\\X\\X$&quot;, &quot;ab\x0d\x0a&quot;, 0, 4);

  fprintf(stdout,
       &quot;\nRESULT   SUCC: %4d,  FAIL: %d,  ERROR: %d      (by Oniguruma %s)\n&quot;,
       nsucc, nfail, nerror, onig_version());

  return ((nfail == 0 &amp;&amp; nerror == 0) ? 0 : -1);
}
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