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authorJörg Frings-Fürst <debian@jff-webhosting.net>2014-08-12 21:06:31 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2014-08-12 21:06:31 +0200
commit0dbf3761f6b98e5c16c9bfa0306ae5d3257d081f (patch)
treeb122da5e29b81eb5489734f477afb645422980d0 /sample/listcap.c
Imported Upstream version 5.9.5upstream/5.9.5
Diffstat (limited to 'sample/listcap.c')
-rw-r--r--sample/listcap.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/sample/listcap.c b/sample/listcap.c
new file mode 100644
index 0000000..9a4fd9a
--- /dev/null
+++ b/sample/listcap.c
@@ -0,0 +1,107 @@
+/*
+ * listcap.c
+ *
+ * capture history (?@...) sample.
+ */
+#include <stdio.h>
+#include <string.h>
+#include "oniguruma.h"
+
+static int
+node_callback(int group, int beg, int end, int level, int at, void* arg)
+{
+ int i;
+
+ if (at != ONIG_TRAVERSE_CALLBACK_AT_FIRST)
+ return -1; /* error */
+
+ /* indent */
+ for (i = 0; i < level * 2; i++)
+ fputc(' ', stderr);
+
+ fprintf(stderr, "%d: (%d-%d)\n", group, beg, end);
+ return 0;
+}
+
+extern int ex(unsigned char* str, unsigned char* pattern,
+ OnigSyntaxType* syntax)
+{
+ int r;
+ unsigned char *start, *range, *end;
+ regex_t* reg;
+ OnigErrorInfo einfo;
+ OnigRegion *region;
+
+ r = onig_new(&reg, pattern, pattern + strlen((char* )pattern),
+ ONIG_OPTION_DEFAULT, ONIG_ENCODING_ASCII, syntax, &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 captures: %d\n", onig_number_of_captures(reg));
+ fprintf(stderr, "number of capture histories: %d\n",
+ onig_number_of_capture_histories(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) {
+ 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]);
+ }
+ fprintf(stderr, "\n");
+
+ r = onig_capture_tree_traverse(region, ONIG_TRAVERSE_CALLBACK_AT_FIRST,
+ node_callback, (void* )0);
+ }
+ 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);
+ return 0;
+}
+
+
+extern int main(int argc, char* argv[])
+{
+ int r;
+ OnigSyntaxType syn;
+
+ static UChar* str1 = (UChar* )"((())())";
+ static UChar* pattern1
+ = (UChar* )"\\g<p>(?@<p>\\(\\g<s>\\)){0}(?@<s>(?:\\g<p>)*|){0}";
+
+ static UChar* str2 = (UChar* )"x00x00x00";
+ static UChar* pattern2 = (UChar* )"(?@x(?@\\d+))+";
+
+ static UChar* str3 = (UChar* )"0123";
+ static UChar* pattern3 = (UChar* )"(?@.)(?@.)(?@.)(?@.)";
+
+ /* enable capture hostory */
+ onig_copy_syntax(&syn, ONIG_SYNTAX_DEFAULT);
+ onig_set_syntax_op2(&syn,
+ onig_get_syntax_op2(&syn) | ONIG_SYN_OP2_ATMARK_CAPTURE_HISTORY);
+
+ r = ex(str1, pattern1, &syn);
+ r = ex(str2, pattern2, &syn);
+ r = ex(str3, pattern3, &syn);
+
+ onig_end();
+ return r;
+}