1 files changed, 136 insertions, 0 deletions
diff --git a/sample/echo.c b/sample/echo.c
new file mode 100644
index 0000000..76df207
--- /dev/null
+++ b/sample/echo.c
@@ -0,0 +1,136 @@
+/*
+ * echo.c
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include "oniguruma.h"
+
+static int
+echo(OnigCalloutArgs* args, void* user_data)
+{
+  int r;
+  OnigCalloutIn in;
+  OnigType type;
+  OnigValue val;
+  FILE* fp;
+
+  fp = stdout;
+
+  in = onig_get_callout_in_by_callout_args(args);
+
+  r = onig_get_arg_by_callout_args(args, 1, &type, &val);
+  if (r != ONIG_NORMAL) return r;
+
+  if (in == ONIG_CALLOUT_IN_PROGRESS) {
+    if (val.c == '<')
+      return ONIG_CALLOUT_SUCCESS;
+  }
+  else {
+    if (val.c != 'X' && val.c != '<')
+      return ONIG_CALLOUT_SUCCESS;
+  }
+
+  r = onig_get_arg_by_callout_args(args, 0, &type, &val);
+  if (r != ONIG_NORMAL) return r;
+
+
+  fprintf(fp, "%s %s\n",
+          (in == ONIG_CALLOUT_IN_PROGRESS ? "=>" : "<="),
+          val.s.start);
+  fflush(fp);
+
+  return ONIG_CALLOUT_SUCCESS;
+}
+
+
+static int
+test(OnigEncoding enc, char* in_pattern, char* in_str)
+{
+  int r;
+  unsigned char *start, *range, *end;
+  regex_t* reg;
+  OnigErrorInfo einfo;
+  OnigRegion *region;
+  UChar* pattern;
+  UChar* str;
+
+  pattern = (UChar* )in_pattern;
+  str = (UChar* )in_str;
+
+  r = onig_new(&reg, pattern, pattern + strlen((char* )pattern),
+               ONIG_OPTION_DEFAULT, enc, ONIG_SYNTAX_DEFAULT, &einfo);
+  if (r != ONIG_NORMAL) {
+    char s[ONIG_MAX_ERROR_MESSAGE_LEN];
+    onig_error_code_to_str((UChar* )s, r, &einfo);
+    fprintf(stderr, "COMPILE ERROR: %d: %s\n", r, s);
+    return -1;
+  }
+
+  region = onig_region_new();
+
+  end   = str + strlen((char* )str);
+  start = str;
+  range = end;
+  r = onig_search(reg, str, end, start, range, region, ONIG_OPTION_NONE);
+  if (r >= 0) {
+    int i;
+
+    fprintf(stderr, "match at %d\n", r);
+    for (i = 0; i < region->num_regs; i++) {
+      fprintf(stderr, "%d: (%d-%d)\n", i, region->beg[i], region->end[i]);
+    }
+  }
+  else if (r == ONIG_MISMATCH) {
+    fprintf(stderr, "search fail\n");
+  }
+  else { /* error */
+    char s[ONIG_MAX_ERROR_MESSAGE_LEN];
+    onig_error_code_to_str((UChar* )s, r);
+    fprintf(stderr, "SEARCH ERROR: %d: %s\n", r, s);
+  }
+
+  onig_region_free(region, 1 /* 1:free self, 0:free contents only */);
+  onig_free(reg);
+  return r;
+}
+
+extern int main(int argc, char* argv[])
+{
+  int r;
+  int id;
+  UChar* name;
+  OnigEncoding use_encs[1];
+  OnigType arg_types[4];
+  OnigValue opt_defaults[4];
+  OnigEncoding enc;
+
+  enc = ONIG_ENCODING_UTF8;
+  use_encs[0] = enc;
+
+  r = onig_initialize(use_encs, sizeof(use_encs)/sizeof(use_encs[0]));
+  if (r != ONIG_NORMAL) return -1;
+
+  name = (UChar* )"echo";
+  arg_types[0] = ONIG_TYPE_STRING;
+  arg_types[1] = ONIG_TYPE_CHAR;
+  opt_defaults[0].s.start = (UChar* )"echo";
+  opt_defaults[0].s.end   = opt_defaults[0].s.start +
+                                strlen((char* )opt_defaults[0].s.start);
+  opt_defaults[1].c = '>';
+
+  id = onig_set_callout_of_name(enc, ONIG_CALLOUT_TYPE_SINGLE,
+                                name, name + strlen((char* )name),
+                                ONIG_CALLOUT_IN_BOTH, echo, 0,
+                                2, arg_types, 2, opt_defaults);
+  if (id < 0) {
+    fprintf(stderr, "ERROR: fail to set callout of name: %s\n", name);
+    return -1;
+  }
+
+  test(enc, "(?:(*echo{abc!!!})a|b)*", "abba");
+  test(enc, "(?:(*echo{xyz,X})a|b)*", "abba");
+
+  onig_end();
+  return 0;
+}