1 files changed, 72 insertions, 0 deletions
diff --git a/sample/names.c b/sample/names.c
new file mode 100644
index 0000000..6667eb5
--- /dev/null
+++ b/sample/names.c
@@ -0,0 +1,72 @@
+/*
+ * names.c -- example of group name callback.
+ */
+#include <stdio.h>
+#include <string.h>
+#include "oniguruma.h"
+
+static int
+name_callback(const UChar* name, const UChar* name_end,
+	      int ngroup_num, int* group_nums,
+	      regex_t* reg, void* arg)
+{
+  int i, gn, ref;
+  char* s;
+  OnigRegion *region = (OnigRegion* )arg;
+
+  for (i = 0; i < ngroup_num; i++) {
+    gn = group_nums[i];
+    ref = onig_name_to_backref_number(reg, name, name_end, region);
+    s = (ref == gn ? "*" : "");
+    fprintf(stderr, "%s (%d): ", name, gn);
+    fprintf(stderr, "(%d-%d) %s\n", region->beg[gn], region->end[gn], s);
+  }
+  return 0;  /* 0: continue */
+}
+
+extern int main(int argc, char* argv[])
+{
+  int r;
+  unsigned char *start, *range, *end;
+  regex_t* reg;
+  OnigErrorInfo einfo;
+  OnigRegion *region;
+
+  static UChar* pattern = (UChar* )"(?<foo>a*)(?<bar>b*)(?<foo>c*)";
+  static UChar* str = (UChar* )"aaabbbbcc";
+
+  r = onig_new(&reg, pattern, pattern + strlen((char* )pattern),
+	ONIG_OPTION_DEFAULT, ONIG_ENCODING_ASCII, ONIG_SYNTAX_DEFAULT, &einfo);
+  if (r != ONIG_NORMAL) {
+    char s[ONIG_MAX_ERROR_MESSAGE_LEN];
+    onig_error_code_to_str(s, r, &einfo);
+    fprintf(stderr, "ERROR: %s\n", s);
+    return -1;
+  }
+
+  fprintf(stderr, "number of names: %d\n", onig_number_of_names(reg));
+
+  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) {
+    fprintf(stderr, "match at %d\n\n", r);
+    r = onig_foreach_name(reg, name_callback, (void* )region);
+  }
+  else if (r == ONIG_MISMATCH) {
+    fprintf(stderr, "search fail\n");
+  }
+  else { /* error */
+    char s[ONIG_MAX_ERROR_MESSAGE_LEN];
+    onig_error_code_to_str(s, r);
+    return -1;
+  }
+
+  onig_region_free(region, 1 /* 1:free self, 0:free contents only */);
+  onig_free(reg);
+  onig_end();
+  return 0;
+}