3 files changed, 52 insertions, 0 deletions
diff --git a/e-util/ChangeLog b/e-util/ChangeLog
index 29aace5994..ba3c5d6a1e 100644
--- a/e-util/ChangeLog
+++ b/e-util/ChangeLog
@@ -1,3 +1,9 @@
+2000-05-30  Not Zed  <NotZed@HelixCode.com>
+
+	* e-sexp.c (e_sexp_encode_bool): Utility function to build a bool
+	as part of an expression string.
+	(e_sexp_encode_string): Likewise for strings.
+
 2000-05-30  Christopher James Lahey  <clahey@helixcode.com>
 
 	* e-canvas-utils.c, e-canvas-utils.h: Added
diff --git a/e-util/e-sexp.c b/e-util/e-sexp.c
index 7d7b5f5f0f..22727f22c2 100644
--- a/e-util/e-sexp.c
+++ b/e-util/e-sexp.c
@@ -1089,6 +1089,48 @@ e_sexp_eval(ESExp *f)
 	return e_sexp_term_eval(f, f->tree);
 }
 
+/**
+ * e_sexp_encode_bool:
+ * @s: 
+ * @state: 
+ * 
+ * Encode a bool into an s-expression @s.  Bools are
+ * encoded using #t #f syntax.
+ **/
+void
+e_sexp_encode_bool(GString *s, gboolean state)
+{
+	if (state)
+		g_string_append(s, " #t");
+	else
+		g_string_append(s, " #f");
+}
+
+/**
+ * e_sexp_encode_string:
+ * @s: Destination string.
+ * @string: String expression.
+ * 
+ * Add a c string @string to the s-expression stored in
+ * the gstring @s.  Quotes are added, and special characters
+ * are escaped appropriately.
+ **/
+void
+e_sexp_encode_string(GString *s, const char *string)
+{
+	char c;
+	const char *p;
+
+	p = string;
+	g_string_append(s, " \"");
+	while ( (c = *p++) ) {
+		if (c=='\\' || c=='\"' || c=='\'')
+			g_string_append_c(s, '\\');
+		g_string_append_c(s, c);
+	}
+	g_string_append(s, "\"");
+}
+
 #ifdef TESTER
 int main(int argc, char **argv)
 {
diff --git a/e-util/e-sexp.h b/e-util/e-sexp.h
index 885a2369b9..1030531133 100644
--- a/e-util/e-sexp.h
+++ b/e-util/e-sexp.h
@@ -112,4 +112,8 @@ ESExpResult    *e_sexp_term_eval		(struct _ESExp *f, struct _ESExpTerm *t);
 ESExpResult    *e_sexp_result_new	(int type);
 void		e_sexp_result_free		(struct _ESExpResult *t);
 
+/* utility functions for creating s-exp strings. */
+void		e_sexp_encode_bool(GString *s, gboolean state);
+void		e_sexp_encode_string(GString *s, const char *string);
+
 #endif /* _E_SEXP_H */