Matching works

1 files changed, 38 insertions, 0 deletions

diff --git a/regex.c b/regex.c
new file mode 100644
index 0000000..8d46a31
--- /dev/null
+++ b/regex.c
@@ -0,0 +1,38 @@
+#include "regex.h"
+#include <stdio.h>
+#include <string.h>
+
+char* clstocs(CleanString* cs) {
+    char* s = calloc(CleanStringLength(cs) + 1, 1);
+    uint8_t i;
+    for (i = 0; i < CleanStringLength(cs); i++)
+        s[i] = CleanStringCharacters(cs)[i];
+    s[i] = 0;
+    return s;
+}
+
+pcre2_code* cleanregex_pcre2_compile(CleanString* cs, int64_t flags) {
+    uint8_t* s = (uint8_t*) clstocs(cs);
+    int error; PCRE2_SIZE offset;
+    pcre2_code* code = pcre2_compile(s, PCRE2_ZERO_TERMINATED, flags, 
+            &error, &offset, NULL);
+    if (code)
+        return code;
+    else
+        return NULL;
+}
+
+int64_t cleanregex_match(pcre2_code* re, CleanString* sub) {
+    pcre2_match_data *data = pcre2_match_data_create_from_pattern(re, NULL);
+    uint8_t* csub = (uint8_t*) clstocs(sub);
+    unsigned long len = CleanStringLength(sub); 
+    int match = pcre2_match(re, csub, len, 0, 0, data, NULL);
+    if (match < 0) {
+        pcre2_match_data_free(data);
+        return match;
+    }
+    PCRE2_SIZE* ovector = pcre2_get_ovector_pointer(data);
+    pcre2_match_data_free(data);
+    return ovector[0];
+}
+