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-rw-r--r--src/fe-text/screen.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/fe-text/screen.h b/src/fe-text/screen.h
index 49ae79eb..c1449bfb 100644
--- a/src/fe-text/screen.h
+++ b/src/fe-text/screen.h
@@ -16,6 +16,21 @@
#define ATTR_COLOR8 0x200
#define ATTR_REVERSE 0x400
+/* XXX I hope this could be integrated into BX.
+ * XXX Well, this should be done via libc,
+ * but FreeBSD libc support is quite LAME.
+ * Macro below are copied from lynx.
+ *
+ * clive@FreeBSD.org
+ */
+#ifdef WANT_BIG5
+/* XXX I didn't check the encoding range of big5+. This is standard big5. */
+#define is_big5_los(lo) (((char)0x40<=lo)&&(lo<=(char)0x7E)) /* standard */
+#define is_big5_lox(lo) (((char)0x80<=lo)&&(lo<=(char)0xFE)) /* extended */
+#define is_big5_hi(hi) (((char)0x81<=hi)&&(hi<=(char)0xFE))
+#define is_big5(hi,lo) is_big5_hi(hi) && (is_big5_los(lo) || is_big5_lox(lo))
+#endif WANT_BIG5
+
int init_screen(void); /* Initialize screen, detect screen length */
void deinit_screen(void); /* Deinitialize screen */