Add libteken (from FreeBSD) to third_party.

third_party/libteken/teken/teken.h

+/*-
+ * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: head/sys/teken/teken.h 259667 2013-12-20 21:31:50Z ed $
+ */
+
+#ifndef _TEKEN_H_
+#define _TEKEN_H_
+
+// !!! Start of Mojo addition.
+#include <stdint.h>
+// !!! End of Mojo addition.
+#include <sys/types.h>
+
+/*
+ * libteken: terminal emulation library.
+ *
+ * This library converts an UTF-8 stream of bytes to terminal drawing
+ * commands.
+ */
+
+// !!! Start of Mojo addition.
+#ifdef __cplusplus
+extern "C" {
+#endif
+// !!! End of Mojo addition.
+
+typedef uint32_t teken_char_t;
+typedef unsigned short teken_unit_t;
+typedef unsigned char teken_format_t;
+#define TF_BOLD         0x01    /* Bold character. */
+#define TF_UNDERLINE    0x02    /* Underline character. */
+#define TF_BLINK        0x04    /* Blinking character. */
+#define TF_REVERSE      0x08    /* Reverse rendered character. */
+#define TF_CJK_RIGHT    0x10    /* Right-hand side of CJK character. */
+typedef unsigned char teken_color_t;
+#define TC_BLACK        0
+#define TC_RED          1
+#define TC_GREEN        2
+#define TC_BROWN        3
+#define TC_BLUE         4
+#define TC_MAGENTA      5
+#define TC_CYAN         6
+#define TC_WHITE        7
+#define TC_NCOLORS      8
+
+typedef struct {
+        teken_unit_t    tp_row;
+        teken_unit_t    tp_col;
+} teken_pos_t;
+typedef struct {
+        teken_pos_t     tr_begin;
+        teken_pos_t     tr_end;
+} teken_rect_t;
+typedef struct {
+        teken_format_t  ta_format;
+        teken_color_t   ta_fgcolor;
+        teken_color_t   ta_bgcolor;
+} teken_attr_t;
+typedef struct {
+        teken_unit_t    ts_begin;
+        teken_unit_t    ts_end;
+} teken_span_t;
+
+typedef struct __teken teken_t;
+
+typedef void teken_state_t(teken_t *, teken_char_t);
+
+/*
+ * Drawing routines supplied by the user.
+ */
+
+typedef void tf_bell_t(void *);
+typedef void tf_cursor_t(void *, const teken_pos_t *);
+typedef void tf_putchar_t(void *, const teken_pos_t *, teken_char_t,
+    const teken_attr_t *);
+typedef void tf_fill_t(void *, const teken_rect_t *, teken_char_t,
+    const teken_attr_t *);
+typedef void tf_copy_t(void *, const teken_rect_t *, const teken_pos_t *);
+typedef void tf_param_t(void *, int, unsigned int);
+#define TP_SHOWCURSOR   0
+#define TP_KEYPADAPP    1
+#define TP_AUTOREPEAT   2
+#define TP_SWITCHVT     3
+#define TP_132COLS      4
+#define TP_SETBELLPD    5
+#define TP_SETBELLPD_PITCH(pd)          ((pd) >> 16)
+#define TP_SETBELLPD_DURATION(pd)       ((pd) & 0xffff)
+#define TP_MOUSE        6
+typedef void tf_respond_t(void *, const void *, size_t);
+
+typedef struct {
+        tf_bell_t       *tf_bell;
+        tf_cursor_t     *tf_cursor;
+        tf_putchar_t    *tf_putchar;
+        tf_fill_t       *tf_fill;
+        tf_copy_t       *tf_copy;
+        tf_param_t      *tf_param;
+        tf_respond_t    *tf_respond;
+} teken_funcs_t;
+
+typedef teken_char_t teken_scs_t(teken_t *, teken_char_t);
+
+/*
+ * Terminal state.
+ */
+
+struct __teken {
+        const teken_funcs_t *t_funcs;
+        void            *t_softc;
+
+        teken_state_t   *t_nextstate;
+        unsigned int     t_stateflags;
+
+#define T_NUMSIZE       8
+        unsigned int     t_nums[T_NUMSIZE];
+        unsigned int     t_curnum;
+
+        teken_pos_t      t_cursor;
+        teken_attr_t     t_curattr;
+        teken_pos_t      t_saved_cursor;
+        teken_attr_t     t_saved_curattr;
+
+        teken_attr_t     t_defattr;
+        teken_pos_t      t_winsize;
+
+        /* For DECSTBM. */
+        teken_span_t     t_scrollreg;
+        /* For DECOM. */
+        teken_span_t     t_originreg;
+
+#define T_NUMCOL        160
+        unsigned int     t_tabstops[T_NUMCOL / (sizeof(unsigned int) * 8)];
+
+        unsigned int     t_utf8_left;
+        teken_char_t     t_utf8_partial;
+
+        unsigned int     t_curscs;
+        teken_scs_t     *t_saved_curscs;
+        teken_scs_t     *t_scs[2];
+};
+
+/* Initialize teken structure. */
+void    teken_init(teken_t *, const teken_funcs_t *, void *);
+
+/* Deliver character input. */
+void    teken_input(teken_t *, const void *, size_t);
+
+/* Get/set teken attributes. */
+const teken_pos_t *teken_get_cursor(teken_t *);
+const teken_attr_t *teken_get_curattr(teken_t *);
+const teken_attr_t *teken_get_defattr(teken_t *);
+void    teken_get_defattr_cons25(teken_t *, int *, int *);
+const teken_pos_t *teken_get_winsize(teken_t *);
+void    teken_set_cursor(teken_t *, const teken_pos_t *);
+void    teken_set_curattr(teken_t *, const teken_attr_t *);
+void    teken_set_defattr(teken_t *, const teken_attr_t *);
+void    teken_set_winsize(teken_t *, const teken_pos_t *);
+void    teken_set_winsize_noreset(teken_t *, const teken_pos_t *);
+
+/* Key input escape sequences. */
+#define TKEY_UP         0x00
+#define TKEY_DOWN       0x01
+#define TKEY_LEFT       0x02
+#define TKEY_RIGHT      0x03
+
+#define TKEY_HOME       0x04
+#define TKEY_END        0x05
+#define TKEY_INSERT     0x06
+#define TKEY_DELETE     0x07
+#define TKEY_PAGE_UP    0x08
+#define TKEY_PAGE_DOWN  0x09
+
+#define TKEY_F1         0x0a
+#define TKEY_F2         0x0b
+#define TKEY_F3         0x0c
+#define TKEY_F4         0x0d
+#define TKEY_F5         0x0e
+#define TKEY_F6         0x0f
+#define TKEY_F7         0x10
+#define TKEY_F8         0x11
+#define TKEY_F9         0x12
+#define TKEY_F10        0x13
+#define TKEY_F11        0x14
+#define TKEY_F12        0x15
+const char *teken_get_sequence(teken_t *, unsigned int);
+
+/* Legacy features. */
+void    teken_set_8bit(teken_t *);
+void    teken_set_cons25(teken_t *);
+
+/* Color conversion. */
+teken_color_t teken_256to8(teken_color_t);
+
+// !!! Start of Mojo addition.
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+// !!! End of Mojo addition.
+
+#endif /* !_TEKEN_H_ */