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-rw-r--r--libguile/print.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/libguile/print.c b/libguile/print.c
index 1572690e2..3f72810c1 100644
--- a/libguile/print.c
+++ b/libguile/print.c
@@ -881,8 +881,24 @@ display_string_using_iconv (const void *str, int narrow_p, size_t len,
{
size_t printed;
scm_t_iconv_descriptors *id;
+ scm_t_port_internal *pti = SCM_PORT_GET_INTERNAL (port);
- id = scm_i_port_iconv_descriptors (port);
+ id = scm_i_port_iconv_descriptors (port, SCM_PORT_WRITE);
+
+ if (SCM_UNLIKELY (pti->at_stream_start_for_bom_write && len > 0))
+ {
+ scm_t_port *pt = SCM_PTAB_ENTRY (port);
+
+ /* Record that we're no longer at stream start. */
+ pti->at_stream_start_for_bom_write = 0;
+ if (pt->rw_random)
+ pti->at_stream_start_for_bom_read = 0;
+
+ /* Write a BOM if appropriate. */
+ if (SCM_UNLIKELY (strcasecmp(pt->encoding, "UTF-16") == 0
+ || strcasecmp(pt->encoding, "UTF-32") == 0))
+ display_character (SCM_UNICODE_BOM, port, iconveh_error);
+ }
printed = 0;