work in progress to implement the builtin printf function

lib/hcl.c

@@ -266,6 +266,11 @@ void hcl_fini (hcl_t* hcl)
 	}
 }
 
+void hcl_clear (hcl_t* hcl, int flags)
+{
+	/* TODO */
+}
+
 int hcl_setoption (hcl_t* hcl, hcl_option_t id, const void* value)
 {
 	switch (id)

lib/logfmt.c

@@ -477,23 +477,34 @@ hcl_ooi_t hcl_logufmt (hcl_t* hcl, hcl_oow_t mask, const hcl_uch_t* fmt, ...)
 static int put_prch (hcl_t* hcl, hcl_oow_t mask, hcl_ooch_t ch, hcl_oow_t len)
 {
 /* TODO: better error handling, buffering.
- * buffer should be done by the printer callback? */
+ *       should buffering be done by the printer callback? */
 	hcl_ooi_t n;
+	hcl_ooch_t str[256];
+	hcl_oow_t seglen, i;
 
-	hcl->c->outarg.ptr = &ch;
+	while (len > 0)
-	hcl->c->outarg.len = 1;
+	{
+		seglen = (len > HCL_COUNTOF(str))? len = HCL_COUNTOF(str): len;
+		for (i = 0; i < seglen; i++) str[i] = ch;
 
-	n = hcl->c->printer(hcl, HCL_IO_WRITE, &hcl->c->outarg);
+		hcl->c->outarg.ptr = str;
+		hcl->c->outarg.len = seglen;
+
+		n = hcl->c->printer(hcl, HCL_IO_WRITE, &hcl->c->outarg);
+
+		if (n <= -1) return -1;
+		if (n == 0) return 0;
+
+		len -= seglen;
+	}
 
-	if (n <= -1) return -1;
-	if (n == 0) return 0;
 	return 1; /* success */
 }
 
 static int put_prcs (hcl_t* hcl, hcl_oow_t mask, const hcl_ooch_t* ptr, hcl_oow_t len)
 {
 /* TODO: better error handling, buffering 
- * buffer should be done by the printer callback? */
+ *       should buffering be done by the printer callback? */
 	hcl_ooi_t n;
 
 	hcl->c->outarg.ptr = (hcl_ooch_t*)ptr;

lib/logfmtv.h

@@ -74,7 +74,7 @@
 #define PUT_OOCH(c,n) do { \
 	if (n > 0) { \
 		int xx; \
-		if ((xx = data->putch (hcl, data->mask, c, n)) <= -1) goto oops; \
+		if ((xx = data->putch(hcl, data->mask, c, n)) <= -1) goto oops; \
 		if (xx == 0) goto done; \
 		data->count += n; \
 	} \
@@ -83,7 +83,7 @@
 #define PUT_OOCS(ptr,len) do { \
 	if (len > 0) { \
 		int xx; \
-		if ((xx = data->putcs (hcl, data->mask, ptr, len)) <= -1) goto oops; \
+		if ((xx = data->putcs(hcl, data->mask, ptr, len)) <= -1) goto oops; \
 		if (xx == 0) goto done; \
 		data->count += len; \
 	} \
@@ -137,10 +137,17 @@ static int logfmtv (hcl_t* hcl, const fmtchar_t* fmt, hcl_fmtout_t* data, va_lis
 		}
 		PUT_OOCS (checkpoint, fmt - checkpoint - 1);
 	#else
-
 		while ((ch = *fmt++) != '%' || stop) 
 		{
 			if (ch == '\0') goto done;
+
+	#if defined(HCL_OOCH_IS_UCH)
+		/* ooch is uch. fmtchar is bch */
+		/* TODO: convert bch to uch */
+	#else
+		/* ooch is bch. fmtchar is uch */
+		/* TODO: convert uch to bch */
+	#endif
 			PUT_OOCH (ch, 1);
 		}
 	#endif