From 0933a1be2d8da3025640ca357d5ff721ecfc24b5 Mon Sep 17 00:00:00 2001
From: hgn <hgodden00@gmail.com>
Date: Sun, 29 Jun 2025 17:20:39 +0000
Subject: [PATCH] KV Write

---
 vg_kv.c  | 102 ++++++++++++++++++++++++++++++++++++++++++++++++-------
 vg_mem.c |   4 +--
 2 files changed, 92 insertions(+), 14 deletions(-)

diff --git a/vg_kv.c b/vg_kv.c
index a4d8388..dd398e6 100644
--- a/vg_kv.c
+++ b/vg_kv.c
@@ -153,7 +153,7 @@ const char *vg_kv_key( vg_kvs *kvs, u32 kv_id, u32 *out_length )
 {
    vg_kv *kv = &kvs->kvs[ kv_id ];
    *out_length = (kv->key_info >> 20) & 0x3FF;
-   return kvs->source_buffer + kv->key_offset;
+   return (*out_length)? kvs->source_buffer + kv->key_offset: NULL;
 }
 
 const char *vg_kv_value( vg_kvs *kvs, u32 kv_id, u32 *out_length )
@@ -224,28 +224,105 @@ u32 vg_kv_find( vg_kvs *kvs, u32 root_id, const char *key )
    return 0;
 }
 
+typedef struct vg_kv_write vg_kv_write;
+struct vg_kv_write
+{
+   FILE *fp;
+   u32 depth;
+};
+
+void vg_kv_write_indent( vg_kv_write *w )
+{
+   for( u32 i=0; i<w->depth; i ++ )
+      fputc( ' ', w->fp );
+}
+
+void vg_kv_write_string( vg_kv_write *w, const char *string, u32 length )
+{
+   if( length == 0 )
+      length = 0xffffffff;
+
+   u32 i=0;
+   char delim=0;
+   for( ;i<length; i ++ )
+   {
+      char c = string[i];
+      if( c == '\0' )
+         break;
+
+      char new_delim = 0;
+      if( c == '"' )
+         new_delim = '\'';
+      else if( c == '\'' || c == ' ' || c == '\t' || c == '\n' )
+         new_delim = '"';
+
+      if( new_delim )
+      {
+         if( delim && (new_delim != delim) )
+         {
+            vg_kv_write_string( w, "VG_KV_UNWRITABLE_STRING", 0 );
+            return;
+         }
+         else delim = new_delim;
+      }
+   }
+
+   if( delim ) fputc( delim, w->fp );
+   for( u32 j=0; j<i; j ++ ) fputc( string[j], w->fp );
+   if( delim ) fputc( delim, w->fp );
+}
+
+void vg_kv_write_block( vg_kv_write *w, const char *name, u32 name_length )
+{
+   vg_kv_write_indent( w );
+   if( name )
+   {
+      vg_kv_write_string( w, name, name_length );
+      fputc( '\n', w->fp );
+      vg_kv_write_indent( w );
+   }
+
+   fputc( '{', w->fp );
+   fputc( '\n', w->fp );
+   w->depth ++;
+}
+
+void vg_kv_end_block( vg_kv_write *w )
+{
+   w->depth --;
+   vg_kv_write_indent( w );
+   fputc( '}', w->fp );
+   fputc( '\n', w->fp );
+}
+
+void vg_kv_write_kv( vg_kv_write *w, const char *key, u32 key_len, const char *value, u32 value_len )
+{
+   vg_kv_write_indent( w );
+   vg_kv_write_string( w, key, key_len );
+   fputc( ' ', w->fp );
+   vg_kv_write_string( w, value, value_len );
+   fputc( '\n', w->fp );
+}
+
+#if 0
 void vg_kv_print_info( vg_kvs *kvs )
 {
    vg_low( "Compression ratio: %.2f%%\n", ((f32)(kvs->kv_count * sizeof(vg_kv)) / (f32)kvs->source_length )*100.0f );
 }
 
-void vg_kv_print_tree( vg_kvs *kvs, u32 root_id, u32 depth )
+void vg_kv_print_tree( vg_kv_write *w, vg_kvs *kvs, u32 root_id )
 {
    VG_ASSERT( vg_kv_type( kvs, root_id ) == 0x0 );
 
-   const char *k_whitespace = "                                                                                            ";
-
    u32 root_len;
    const char *root_str = vg_kv_key( kvs, root_id, &root_len );
-   vg_info( "%.*s\"%.*s\"\n", depth*2, k_whitespace, root_len, root_str );
-   vg_info( "%.*s{\n", depth*2, k_whitespace );
-   depth ++;
+   vg_kv_write_block( w, root_str, root_len );
 
    u32 child_id = vg_kv_child( kvs, root_id, 0 );
    while( child_id )
    {
       if( vg_kv_type( kvs, child_id ) == 0x0 )
-         vg_kv_print_tree( kvs, child_id, depth );
+         vg_kv_print_tree( w, kvs, child_id );
       else
       {
          u32 key_len;
@@ -255,14 +332,15 @@ void vg_kv_print_tree( vg_kvs *kvs, u32 root_id, u32 depth )
          const char *value_str = vg_kv_value( kvs, child_id, &value_len );
 
          if( key_str && value_str )
-            vg_info( "%.*s\"%.*s\" \"%.*s\"\n", depth*2, k_whitespace, key_len, key_str, value_len, value_str );
-         else
-            vg_error( "%.*s<KV ERROR>\n", depth*2, k_whitespace );
+            vg_kv_write_kv( w, key_str, key_len, value_str, value_len );
       }
 
       child_id = vg_kv_next( kvs, child_id );
    }
 
-   depth --;
+   vg_kv_end_block( w );
+#if 0
    vg_info( "%.*s}\n", depth*2, k_whitespace );
+#endif
 }
+#endif
diff --git a/vg_mem.c b/vg_mem.c
index fe93cca..fa75fd0 100644
--- a/vg_mem.c
+++ b/vg_mem.c
@@ -99,8 +99,8 @@ static void vg_stack_growmaybe( vg_stack_allocator *stack, u32 new_usage )
 void *vg_stack_allocate( vg_stack_allocator *stack, u32 size, u32 alignment, const char *debug_name )
 {
    VG_ASSERT( (alignment >= 1) && (alignment <= 8) );
-   VG_ASSERT( ~stack->used & (0x1<<31) );
-   VG_ASSERT( ~size        & (0x1<<31) );
+   VG_ASSERT( ~stack->used & 0x10000000 );
+   VG_ASSERT( ~size        & 0x10000000 );
 
    u32 block_size = size;
    if( stack->flags & VG_STACK_ALLOCATOR_METADATA )
-- 
2.25.1