jrk

commit 7f11bac149dc155e41bc45a990a15b9eadc50c8a
parent bfcf3f845482a39bca4a5e8a3602ef5e4ad3dc6d
Author: Jake Koroman <jake@jakekoroman.com>
Date:   Fri, 22 Aug 2025 10:01:29 -0400

add jrk_sv_chop_delim.

Diffstat:
M
jrk.h
 | 
33
+++++++++++++++++++++++++++++++--

1 file changed, 31 insertions(+), 2 deletions(-)
diff --git a/jrk.h b/jrk.h
@@ -1,7 +1,9 @@
 /*
- * TODO(jake):
+ * TODO:
  *   - application shouldn't be dying on all failures, have a way
  *     to configure that ... just die without calling exit()
+ *   - look at at the jrk_sv_chop_delim_loop stuff. there must
+ *     must be a better way of handling things.
  */
 
 #include <stdint.h>
@@ -70,8 +72,13 @@ jrk_StringView jrk_sv_trim_right(jrk_StringView);
 jrk_StringView jrk_sv_trim_left(jrk_StringView);
 jrk_StringView jrk_sv_trim(jrk_StringView);
 jrk_StringView jrk_sv_from_cstr(char*);
+jrk_StringView jrk_sv_chop_delim(jrk_StringView*, char delim);
 
-/* NOTE(jake): no shortname as 'assert' is just too generic */
+/* XXX: im not thrilled with this api, the memory can get messy real fast */
+#define jrk_sv_chop_delim_loop(sv, it, delim) \
+    for (jrk_StringView it = jrk_sv_chop_delim(sv, delim); it.count != 0; it = jrk_sv_chop_delim(sv, delim))
+
+/* NOTE: no shortname as 'assert' is just too generic */
 #define jrk_assert(c, msg) do { if (!(c)) jrk_die("jrk_assert: "msg); } while(0)
 
 #define jrk_shift(x, n) ((n)--, *(x)++)
@@ -162,6 +169,7 @@ jrk_StringView jrk_sv_from_cstr(char*);
   #define sv_trim              jrk_sv_trim
   #define sv_from_cstr         jrk_sv_from_cstr
   #define sv_from_parts        jrk_sv_from_parts
+  #define sv_chop_delim        jrk_sv_chop_delim
 
   #define ecalloc              jrk_ecalloc
   #define erealloc             jrk_erealloc
@@ -426,6 +434,27 @@ jrk_sv_trim(jrk_StringView sv)
     return jrk_sv_trim_right(jrk_sv_trim_left(sv));
 }
 
+jrk_StringView
+jrk_sv_chop_delim(jrk_StringView *sv, char delim)
+{
+    u64 i = 0;
+    while (i < sv->count && sv->data[i] != delim)
+        ++i;
+
+    jrk_StringView result = jrk_sv_from_parts(sv->data, i);
+
+    if (i < sv->count) {
+        sv->data += i + 1;
+        sv->count -= i + 1;
+    } else {
+        sv->data += i;
+        sv->count -= i;
+        result.count++;
+    }
+
+    return result;
+}
+
 i32
 jrk_rand_num(i32 upbound)
 {