ready to make the debug dump

demo.str_cache.c

@@ -974,7 +974,6 @@ void    str8gen_init(Str8Gen* gen, SliceByte backing);
 Str8Gen str8gen_make(              SliceByte backing);
 
 void str8gen_append_str8(Str8Gen* gen, Str8 str);
-// void str8gen_append_fmt (Str8Gen* gen, Str8 fmt, ...);
 
 void str8gen_init(Str8Gen* gen, SliceByte backing) {
 	assert(gen != nullptr);
@@ -998,6 +997,7 @@ In order to support appending formatted content via str8gen_apppend_fmt, we'll b
 Where a format template string is provided with a 'id' wrapped in delimiters which will be the angle brackets: <id>
 Example: This formatted string will have <id> subsituted into it.
 */
+#pragma region fmt_vtoken
 
 typedef struct FmtTokEntry FmtTokEntry;
 struct FmtTokEntry {
@@ -1102,11 +1102,13 @@ struct SliceStr8 {
 	SSIZE len;
 };
 
-Str8 fmt__vtoken(SliceByte backing, Str8 fmt_template, SliceStr8* tokens)
+#define local_persist static
-{
-	FArena           a_backing = farena_init(backing);
-	SliceFmtTokEntry table     = {a_backing.start, 0};
 
+Str8 fmt__vtoken(SliceByte backing_tbl, SliceByte backing_buf, Str8 fmt_template, SliceStr8* tokens)
+{
+	assert(tokens != nullptr);
+	FArena           a_backing = farena_init(backing_tbl);
+	SliceFmtTokEntry table     = {a_backing.start, 0};
 	S32 left = tokens->len;
 	for (slice_iter(*tokens, token)) {
 		FmtTokEntry* entry = farena_push(a_backing, FmtTokEntry); 
@@ -1116,14 +1118,36 @@ Str8 fmt__vtoken(SliceByte backing, Str8 fmt_template, SliceStr8* tokens)
 		entry->value = * token;
 		++ table.len;
 	}
-	SliceByte buffer = { .ptr = cast(U8*, a_backing.start) + a_backing.used, .len = a_backing.capacity - a_backing.used };
+	Str8      result = fmt_vtoken_slice(backing_buf, table, fmt_template);
-	Str8      result = fmt_vtoken_slice(buffer, table, fmt_template);
 	return result;
 }
 
 // Expected to take a Str8 array of entries formatted as a 2D array of key-value pairs (Str8[length][2])
 // The array will be tracked using a SliceStr8 structure.
-#define fmt_vtoken(backing, fmt_template, tokens) fmt__vtoken(backing, fmt_template, &(SliceStr8){.ptr = cast(Str8*, tokens), .len = size_of(tokens) / size_of(Str8) })
+#define fmt_vtoken(backing_tbl, backing_buf, fmt_template, tokens) \
+fmt__vtoken(backing_tbl, backing_buf, lit(fmt_template),           \
+	&(SliceStr8){                                                  \
+		.ptr = cast(Str8*, ((Str8[])tokens)),                      \
+		.len = size_of(    ((Str8[])tokens)) / size_of(Str8)       \
+	}                                                              \
+)
+#pragma endregion fmt_vtoken
+
+inline
+void str8gen__append_fmt(Str8Gen* gen, Str8 fmt_template, SliceStr8* tokens)
+{
+	local_persist FMem_64KB tbl_backing = {0};
+	SliceByte fmt_backing = {gen->ptr + gen->len, gen->backing.len - gen->len};
+	fmt__vtoken(fmem_slice(tbl_backing), fmt_backing, fmt_template, tokens);
+	return;
+}
+#define str8gen_append_fmt(gen, fmt_template, tokens)        \
+str8gen__append_fmt(& gen, lit(fmt_template),                \
+	&(SliceStr8){                                            \
+		.ptr = cast(Str8*, ((Str8[])tokens)),                \
+		.len = size_of(    ((Str8[])tokens)) / size_of(Str8) \
+	}                                                        \
+)
 
 /*
 Define a mapping array:
@@ -1132,18 +1156,34 @@ Str8 mappings [][2] = {
 	^^ Add entries as above ^^
 }
 */
-#define fmt_vtoken_entry(key, value) { lit(key), lit(value) }
+#define fmt_entry(key, value) lit(key), lit(value)
 
 #ifdef DEMO__WATL_DUMP_V1
 int main()
 {
 	set_utf8_codepage();
 
-	SliceByte scratch = slicemem_alloc(MEGABYTES(64));
+	local_persist FMem_64KB tbl_scratch;
-	Str8 subst_table [][2] = {
+	SliceByte fmt_scratch = slicemem_alloc(MEGABYTES(8));
-		fmt_vtoken_entry("maybe_sub", "IT SUBST!!!"),
+	Str8 test_str = fmt_vtoken(fmem_slice(tbl_scratch), fmt_scratch, "Will this work? <maybe_sub>", {
-	};
+		fmt_entry("maybe_sub", "IT SUBST!!!")
-	Str8 test_str = fmt_vtoken(scratch, lit("Will this work? <maybe_sub>"), subst_table);
+	});
+
+	SliceByte scratchgen = slicemem_alloc(MEGABYTES(16));
+	Str8Gen gen = str8gen_make(scratchgen);
+	str8gen_append_fmt(gen, "Testing now with Str8Gen!! <maybe_sub>!", {
+		fmt_entry("maybe_sub", "lets fucking go!!!")
+	});
 	return 0;
 }
 #endif
+
+/*
+We now have what we need to create the debug dump and the structural listing for WATL's data structures.
+*/
+
+Str8 watl_debug_dmp(SliceByte buffer, WATL_SliceLine lines)
+{
+	Str8Gen result = str8gen_make(buffer);
+	return (Str8){ result.ptr, result.len };
+}