Added cregex_compile() to reuse a cregex object (using realloc)). Major optimizations when using ^ and $ (removed 3 strlen calls).

1 files changed, 6 insertions, 4 deletions

diff --git a/examples/regex2.c b/examples/regex2.c
index 5509baa5..512f7e58 100644
--- a/examples/regex2.c
+++ b/examples/regex2.c
@@ -4,7 +4,7 @@
 
 int main()
 {
-    const char* inputs[] = {"birthday: 1964-12-05", "https://en.cppreference.com/w/cpp/regex/regex_search", "!123abcabc!"};
+    const char* inputs[] = {"date: 2024-02-29 leapyear day", "https://en.cppreference.com/w/cpp/regex/regex_search", "!123abcabc!"};
     const char* patterns[] = {"([0-9]{4})-(1[0-2]|0[1-9])-(3[01]|[12][0-9]|0[1-9])",
                               "(https?:\\/\\/|ftp:\\/\\/|www\\.)([0-9A-Za-z-@:%_+~#=]+\\.)+([a-z]{2,3})(\\/[\\/0-9A-Za-z-\\.@:%_+~#=\\?&]*)?",
                               "!((abc|123)+)!",
@@ -15,14 +15,16 @@ int main()
         {
             re = cregex_new(patterns[i]);
             csview m;
+            printf("input: %s\n", inputs[i]);
             if (cregex_find_sv(&re, inputs[i], &m))
             {
-                printf("input: %s\n", inputs[i]);
                 c_forrange (j, cregex_capture_size(re))
                 {
                     csview cap; 
-                    bool res = cregex_capture_sv(&re, j, &cap);
-                    if (res) printf("  submatch %zu: " c_PRIsv "\n", j, c_ARGsv(cap));
+                    if (cregex_capture_sv(&re, j, &cap))
+                        printf("  submatch %zu: " c_PRIsv "\n", j, c_ARGsv(cap));
+                    else
+                        printf("  FAILED index %zu\n", j);
                 }
                 puts("");
             }