From 447184ed2c2cdfdc91b36e46b0a46db1e61f29b1 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@bitwiz.me.uk>
Date: Sun, 29 Apr 2018 21:01:08 +0200
Subject: Add serialise_sc_block_chain()

---
 src/sc_parse.c | 31 +++++++++++++++++++++++++++++++
 src/sc_parse.h |  1 +
 2 files changed, 32 insertions(+)

diff --git a/src/sc_parse.c b/src/sc_parse.c
index a13c876..b66dc1f 100644
--- a/src/sc_parse.c
+++ b/src/sc_parse.c
@@ -337,6 +337,7 @@ void sc_block_free(SCBlock *bl)
 }
 
 
+/* Serialise one block (including children) */
 char *serialise_sc_block(const SCBlock *bl)
 {
 	char *a;
@@ -412,6 +413,36 @@ char *serialise_sc_block(const SCBlock *bl)
 }
 
 
+/* Serialise an entire chain of blocks */
+char *serialise_sc_block_chain(const SCBlock *bl)
+{
+	char *a = strdup("");
+	size_t len = 1;
+
+	if ( a == NULL ) return NULL;
+
+	while ( bl != NULL ) {
+
+		char *c = serialise_sc_block(bl);
+		if ( c == NULL ) {
+			free(a);
+			return NULL;
+		}
+
+		len += strlen(c);
+		a = realloc(a, len);
+		if ( a == NULL ) return NULL;
+		strcat(a, c);
+		free(c);
+
+		bl = bl->next;
+
+	}
+
+	return a;
+}
+
+
 int save_sc_block(GOutputStream *fh, const SCBlock *bl)
 {
 	while ( bl != NULL ) {
diff --git a/src/sc_parse.h b/src/sc_parse.h
index 981299f..9277ee6 100644
--- a/src/sc_parse.h
+++ b/src/sc_parse.h
@@ -84,6 +84,7 @@ extern void show_sc_blocks(const SCBlock *bl);
 extern void show_sc_block(const SCBlock *bl, const char *prefix);
 
 extern char *serialise_sc_block(const SCBlock *bl);
+extern char *serialise_sc_block_chain(const SCBlock *bl);
 extern int save_sc_block(GOutputStream *fh, const SCBlock *bl);
 
 extern size_t scblock_delete_text(SCBlock *b, ssize_t o1, ssize_t o2);
-- 
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