# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1456998348 -7200
# Node ID 39464ba520328b69e04d555f5476fc1571674980
# Parent  28d66757a87a6c48b3b8e536a6530fe71363283e
Add debug prints when TH_PRINTF_DEBUG is defined.

diff -r 28d66757a87a -r 39464ba52032 th_string.c
--- a/th_string.c	Thu Mar 03 11:45:23 2016 +0200
+++ b/th_string.c	Thu Mar 03 11:45:48 2016 +0200
@@ -167,6 +167,33 @@
 #include "th_printf1.c"
 
 
+#ifdef TH_PRINTF_DEBUG
+static void pflag(char *buf, const char *str, const int sep, const int flags, const int flg)
+{
+    strcat(buf, (flags & flg) ? str : "   ");
+    if (sep)
+        strcat(buf, "|");
+}
+
+
+static const char *get_flags(const int flags)
+{
+    static char buf[256];
+
+    buf[0] = 0;
+
+    pflag(buf, "ALT", 1, flags, TH_PF_ALT);
+    pflag(buf, "SGN", 1, flags, TH_PF_SIGN);
+    pflag(buf, "SPC", 1, flags, TH_PF_SPACE);
+    pflag(buf, "GRP", 1, flags, TH_PF_GROUP);
+    pflag(buf, "ZER", 1, flags, TH_PF_ZERO);
+    pflag(buf, "LFT", 0, flags, TH_PF_LEFT);
+
+    return buf;
+}
+#endif
+
+
 static int th_vprintf_put_int(th_vprintf_ctx *ctx, th_vprintf_putch vputch,
     va_list ap, const int f_radix, int f_flags, int f_width, int f_prec,
     const BOOL f_unsig, char *(f_alt)(const char *buf, const int vret, const int flags))
@@ -187,6 +214,10 @@
             f_radix, f_flags & TH_PF_UPCASE, f_unsig, &f_neg);
     }
 
+#ifdef TH_PRINTF_DEBUG
+    printf("W1: vret=%3d, f_flags=[%s], f_width=%3d, f_prec=%3d, f_unsig=%d, f_neg=%d\n", vret, get_flags(f_flags), f_width, f_prec, f_unsig, f_neg);
+#endif
+
     if (vret == EOF)
         return ret;
 
@@ -223,6 +254,9 @@
 
     f_prec = (f_prec > f_len) ? f_prec - f_len : 0;
     nwidth = f_width - f_len - f_prec - (f_altstr ? strlen(f_altstr) : 0);
+#ifdef TH_PRINTF_DEBUG
+    printf("W2: vret=%3d, f_flags=[%s], f_width=%3d, f_prec=%3d, f_unsig=%d, f_neg=%d, f_sign='%c', reg=%s\n", vret, get_flags(f_flags), f_width, f_prec, f_unsig, f_neg, f_sign, reg);
+#endif
 
     // Prefix padding?
     if ((ret = th_printf_pad_pre(ctx, vputch, nwidth, f_flags)) == EOF)