Merge branch 'stclib:master' into modifiedHEADmodified

1 files changed, 34 insertions, 0 deletions

diff --git a/misc/examples/regularexpressions/regex2.c b/misc/examples/regularexpressions/regex2.c
new file mode 100644
index 00000000..a798b1a1
--- /dev/null
+++ b/misc/examples/regularexpressions/regex2.c
@@ -0,0 +1,34 @@
+#define i_import
+#include <stc/cregex.h>
+
+int main(void)
+{
+    struct { const char *pattern, *input; } s[] = {
+        {"(\\d\\d\\d\\d)[-_](1[0-2]|0[1-9])[-_](3[01]|[12][0-9]|0[1-9])",
+         "date: 2024-02-29 leapyear day, christmas eve is on 2022-12-24."
+        },
+        {"(https?://|ftp://|www\\.)([0-9A-Za-z@:%_+~#=-]+\\.)+([a-z][a-z][a-z]?)(/[/0-9A-Za-z\\.@:%_+~#=\\?&-]*)?",
+         "https://en.cppreference.com/w/cpp/regex/regex_search"
+        },
+        {"!((abc|123)+)!", "!123abcabc!"},
+        {"(\\p{Alpha}+ )+(\\p{Nd}+)", "Großpackung süßigkeiten 199"},
+        {"\\p{Han}+", "This is Han: 王明：那是杂志吗？"},
+    };
+
+    cregex re = {0};
+    c_forrange (i, c_arraylen(s))
+    {
+        int res = cregex_compile(&re, s[i].pattern);
+        if (res < 0) {
+            printf("error in regex pattern: %d\n", res);
+            continue;
+        }
+        printf("\ninput: %s\n", s[i].input);
+
+        c_formatch (j, &re, s[i].input) {
+            c_forrange (k, cregex_captures(&re) + 1)
+                printf("  submatch %lld: %.*s\n", k, c_SV(j.match[k]));
+        }
+    }
+    cregex_drop(&re);
+}