development branch for 4.2

Removed uses of c_auto and c_with in documentation examples and code examples. Still using c_defer a few places.
Renamed c11/fmt.h to c11/print.h.
Some additions in ccommon.h, e.g. c_const_cast(T, x).
Improved docs.

1 files changed, 17 insertions, 13 deletions

diff --git a/misc/examples/regex_replace.c b/misc/examples/regex_replace.c
index ebb57488..d3952f50 100644
--- a/misc/examples/regex_replace.c
+++ b/misc/examples/regex_replace.c
@@ -16,9 +16,13 @@ int main()
 {
     const char* pattern = "\\b(\\d\\d\\d\\d)-(1[0-2]|0[1-9])-(3[01]|[12][0-9]|0[1-9])\\b";
     const char* input = "start date: 2015-12-31, end date: 2022-02-28";
+    cstr str = {0};
+    cregex re = {0};
 
-    c_auto (cstr, str)
-    {
+    c_defer(
+        cregex_drop(&re),
+        cstr_drop(&str)
+    ){
         printf("INPUT: %s\n", input);
 
         /* replace with a fixed string, extended all-in-one call: */
@@ -34,17 +38,17 @@ int main()
         printf("brack: %s\n", cstr_str(&str));
 
         /* Shows how to compile RE separately */
-        c_with (cregex re = cregex_from(pattern), cregex_drop(&re)) {
-            if (cregex_captures(&re) == 0)
-                continue; /* break c_with */
-            /* European date format. */
-            cstr_take(&str, cregex_replace(&re, input, "$3.$2.$1"));
-            printf("euros: %s\n", cstr_str(&str));
-
-            /* Strip out everything but the matches */
-            cstr_take(&str, cregex_replace_sv(&re, csview_from(input), "$3.$2.$1;", 0, NULL, CREG_R_STRIP));
-            printf("strip: %s\n", cstr_str(&str));
-        }
+        re = cregex_from(pattern);
+        if (cregex_captures(&re) == 0)
+            continue; /* break c_defer */
+
+        /* European date format. */
+        cstr_take(&str, cregex_replace(&re, input, "$3.$2.$1"));
+        printf("euros: %s\n", cstr_str(&str));
+
+        /* Strip out everything but the matches */
+        cstr_take(&str, cregex_replace_sv(&re, csview_from(input), "$3.$2.$1;", 0, NULL, CREG_R_STRIP));
+        printf("strip: %s\n", cstr_str(&str));
 
         /* Wrap all words in ${} */
         cstr_take(&str, cregex_replace_pattern("[a-z]+", "52 apples and 31 mangoes", "$${$0}"));