- Removed deprecated c_forrange() (replaced by c_forloop + crange type)

- Removed csview_new(literal) macro. Use c_sv(literal) instead.
- Added stc/views.h: moved crange from ccommon.h and added templated type c_listview. Instantiate by: using_listview(ViewName, ValueType) after #include, does not use #define i_val .... See examples in views.h.

3 files changed, 110 insertions, 28 deletions

diff --git a/include/stc/ccommon.h b/include/stc/ccommon.h
index fc164e28..c93c41b9 100644
--- a/include/stc/ccommon.h
+++ b/include/stc/ccommon.h
@@ -196,17 +196,6 @@ STC_INLINE char* c_strnstrn(const char *s, const char *needle,
          ; _.it.ref && (_.key = &_.it.ref->first, _.val = &_.it.ref->second) \
          ; C##_next(&_.it))
 
-// [deprecated]:
-#define c_forrange(...) c_MACRO_OVERLOAD(c_forrange, __VA_ARGS__)
-#define c_forrange1(stop) c_forrange4(_c_i, size_t, 0, stop)
-#define c_forrange2(i, stop) c_forrange4(i, size_t, 0, stop)
-#define c_forrange3(i, itype, stop) c_forrange4(i, itype, 0, stop)
-#define c_forrange4(i, itype, start, stop) \
-    for (itype i=start, _end=stop; i < _end; ++i)
-#define c_forrange5(i, itype, start, stop, step) \
-    for (itype i=start, _inc=step, _end=(stop) - (_inc > 0) \
-         ; (_inc > 0) ^ (i > _end); i += _inc)
-// [replacement]:
 #define c_forloop(...) c_MACRO_OVERLOAD(c_forloop, __VA_ARGS__)
 #define c_forloop1(stop) for (long long _i=0, _end=stop; _i < _end; ++_i)
 #define c_forloop2(i, stop) c_forloop4(i, 0, stop, 1)
@@ -215,22 +204,6 @@ STC_INLINE char* c_strnstrn(const char *s, const char *needle,
     for (long long i=start, _inc=step, _end=(stop) - (_inc > 0) \
          ; (_inc > 0) ^ (i > _end); i += _inc)
 
-typedef long long crange_value;
-struct {crange_value start, end, step, val; } typedef crange;
-struct {crange_value *ref, end, step; } typedef crange_iter;
-#define crange_make(...) c_MACRO_OVERLOAD(crange_make, __VA_ARGS__)
-#define crange_make1(stop) crange_make3(0, stop, 1)
-#define crange_make2(start, stop) crange_make3(start, stop, 1)
-#define c_range(...) (*(crange[]){crange_make(__VA_ARGS__)})
-STC_INLINE crange crange_make3(crange_value start, crange_value stop, crange_value step)
-    { crange r = {start, stop - (step > 0), step}; return r; }
-STC_INLINE crange_iter crange_begin(crange* self)
-    { self->val = self->start; crange_iter it = {&self->val, self->end, self->step}; return it; }
-STC_INLINE crange_iter crange_end(crange* self) 
-    { crange_iter it = {NULL}; return it; }
-STC_INLINE void crange_next(crange_iter* it) 
-    { *it->ref += it->step; if ((it->step > 0) == (*it->ref > it->end)) it->ref = NULL; }
-
 #define c_forlist(it, T, ...) \
     for (struct {T* data; T* ref; int size, index;} \
          it = {.data=(T[])__VA_ARGS__, .ref=it.data, .size=sizeof((T[])__VA_ARGS__)/sizeof(T)} \
diff --git a/include/stc/csview.h b/include/stc/csview.h
index 2be30cb0..3d8bd044 100644
--- a/include/stc/csview.h
+++ b/include/stc/csview.h
@@ -28,12 +28,12 @@
 #include "utf8.h"
 
 #define             csview_null  c_sv("")
-#define             csview_new(literal) c_sv(literal)
 #define             csview_npos  (SIZE_MAX >> 1)
 
 #define             csview_init() csview_null
 #define             csview_drop   c_default_drop
 #define             csview_clone  c_default_clone
+#define             csview_from_n c_sv
 
 STC_INLINE csview   csview_from(const char* str)
                         { return c_make(csview){str, strlen(str)}; }
diff --git a/include/stc/views.h b/include/stc/views.h
new file mode 100644
index 00000000..d4186caf
--- /dev/null
+++ b/include/stc/views.h
@@ -0,0 +1,109 @@
+/* MIT License
+ *
+ * Copyright (c) 2022 Tyge Løvset, NORCE, www.norceresearch.no
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+/* 
+#include <stdio.h>
+#include <stc/views.h>
+using_listview(IView, int);
+
+int main()
+{
+    int array[] = {1, 2, 3, 4, 5};
+    IView iv = IView_init(array, c_arraylen(array));
+    
+    c_foreach (i, IView, iv) printf(" %d", *i.ref);
+    puts("");
+
+    c_forfilter (i, IView, c_listview(IView, {10, 20, 30, 22, 23})
+                  , c_flt_skipwhile(i, *i.ref < 25)
+                  , c_flt_take(i, 2))
+        printf(" %d", *i.ref);
+    puts("");
+
+    crange r1 = crange_init(80, 90);
+    c_foreach (i, crange, r1) printf(" %lld", *i.ref);
+    puts("");
+
+    c_foreach (i, crange, c_range(0, 100, 8)) printf(" %lld", *i.ref);
+    puts("");
+}
+*/
+#ifndef STC_VIEWS_H_INCLUDED
+#define STC_VIEWS_H_INCLUDED
+
+#include <stc/ccommon.h>
+
+#define c_listview(C, ...) \
+    ((C){.data = (C##_value[])__VA_ARGS__, \
+         .size = sizeof((C##_value[])__VA_ARGS__)/sizeof(C##_value)})
+
+#define using_listview(Self, T) \
+typedef T Self##_raw; typedef const Self##_raw Self##_value; \
+typedef struct { Self##_value *data; size_t size; } Self; \
+typedef struct { Self##_value *ref, *end; } Self##_iter; \
+ \
+STC_INLINE Self Self##_init(Self##_value* data, size_t size) \
+    { Self me = {.data=data, .size=size}; return me; } \
+ \
+STC_INLINE Self##_value* Self##_at(const Self* self, size_t idx) \
+    { assert(idx < self->size); return self->data + idx; } \
+ \
+STC_INLINE Self##_iter Self##_begin(const Self* self) { \
+    Self##_iter it = {self->data, self->data + self->size}; \
+    return it; \
+} \
+ \
+STC_INLINE Self##_iter Self##_end(const Self* self) { \
+    Self##_iter it = {NULL, self->data + self->size}; \
+    return it; \
+} \
+ \
+STC_INLINE void Self##_next(Self##_iter* it) \
+    { if (++it->ref == it->end) it->ref = NULL; } \
+struct stc_nostruct
+
+
+#define c_range(...) \
+    (*(crange[]){crange_init(__VA_ARGS__)})
+#define crange_MAX INT64_MAX
+
+typedef long long crange_value;
+typedef struct { crange_value start, end, step, val; } crange;
+typedef struct { crange_value *ref, end, step; } crange_iter;
+
+#define crange_init(...) c_MACRO_OVERLOAD(crange_init, __VA_ARGS__)
+#define crange_init1(stop) crange_init3(0, stop, 1)
+#define crange_init2(start, stop) crange_init3(start, stop, 1)
+
+STC_INLINE crange crange_init3(crange_value start, crange_value stop, crange_value step)
+    { crange r = {start, stop - (step > 0), step}; return r; }
+
+STC_INLINE crange_iter crange_begin(crange* self)
+    { self->val = self->start; crange_iter it = {&self->val, self->end, self->step}; return it; }
+
+STC_INLINE crange_iter crange_end(crange* self) 
+    { crange_iter it = {NULL}; return it; }
+
+STC_INLINE void crange_next(crange_iter* it) 
+    { *it->ref += it->step; if ((it->step > 0) == (*it->ref > it->end)) it->ref = NULL; }
+
+#endif