1 files changed, 32 insertions, 0 deletions
diff --git a/misc/examples/regularexpressions/regex1.c b/misc/examples/regularexpressions/regex1.c
new file mode 100644
index 00000000..d8032358
--- /dev/null
+++ b/misc/examples/regularexpressions/regex1.c
@@ -0,0 +1,32 @@
+#define i_import
+#include <stc/cregex.h>
+
+int main(int argc, char* argv[])
+{
+    if (argc <= 1) {
+        printf("Usage: regex1 -i\n");
+        return 0;
+    }
+    cstr input = {0};
+    cregex float_expr = {0};
+
+    int res = cregex_compile(&float_expr, "^[+-]?[0-9]+((\\.[0-9]*)?|\\.[0-9]+)$");
+    // Until "q" is given, ask for another number
+    if (res > 0) while (true)
+    {
+        printf("Enter a double precision number (q for quit): ");
+        cstr_getline(&input, stdin);
+
+        // Exit when the user inputs q
+        if (cstr_equals(&input, "q"))
+            break;
+
+        if (cregex_is_match(&float_expr, cstr_str(&input)))
+            printf("Input is a float\n");
+        else
+            printf("Invalid input : Not a float\n");
+    }
+
+    cstr_drop(&input);
+    cregex_drop(&float_expr);
+}