Reintegrate tools from trunk

1 files changed, 280 insertions, 0 deletions

diff --git a/tools/plink/terminal.h b/tools/plink/terminal.h
new file mode 100644
index 000000000..6d3b1c544
--- /dev/null
+++ b/tools/plink/terminal.h
@@ -0,0 +1,280 @@
+/*

+ * Internals of the Terminal structure, for those other modules

+ * which need to look inside it. It would be nice if this could be

+ * folded back into terminal.c in future, with an abstraction layer

+ * to handle everything that other modules need to know about it;

+ * but for the moment, this will do.

+ */

+

+#ifndef PUTTY_TERMINAL_H

+#define PUTTY_TERMINAL_H

+

+#include "tree234.h"

+

+struct beeptime {

+    struct beeptime *next;

+    unsigned long ticks;

+};

+

+typedef struct {

+    int y, x;

+} pos;

+

+#ifdef OPTIMISE_SCROLL

+struct scrollregion {

+    struct scrollregion *next;

+    int topline; /* Top line of scroll region. */

+    int botline; /* Bottom line of scroll region. */

+    int lines; /* Number of lines to scroll by - +ve is forwards. */

+};

+#endif /* OPTIMISE_SCROLL */

+

+typedef struct termchar termchar;

+typedef struct termline termline;

+

+struct termchar {

+    /*

+     * Any code in terminal.c which definitely needs to be changed

+     * when extra fields are added here is labelled with a comment

+     * saying FULL-TERMCHAR.

+     */

+    unsigned long chr;

+    unsigned long attr;

+

+    /*

+     * The cc_next field is used to link multiple termchars

+     * together into a list, so as to fit more than one character

+     * into a character cell (Unicode combining characters).

+     * 

+     * cc_next is a relative offset into the current array of

+     * termchars. I.e. to advance to the next character in a list,

+     * one does `tc += tc->next'.

+     * 

+     * Zero means end of list.

+     */

+    int cc_next;

+};

+

+struct termline {

+    unsigned short lattr;

+    int cols;			       /* number of real columns on the line */

+    int size;			       /* number of allocated termchars

+					* (cc-lists may make this > cols) */

+    int temporary;		       /* TRUE if decompressed from scrollback */

+    int cc_free;		       /* offset to first cc in free list */

+    struct termchar *chars;

+};

+

+struct bidi_cache_entry {

+    int width;

+    struct termchar *chars;

+    int *forward, *backward;	       /* the permutations of line positions */

+};

+

+struct terminal_tag {

+

+    int compatibility_level;

+

+    tree234 *scrollback;	       /* lines scrolled off top of screen */

+    tree234 *screen;		       /* lines on primary screen */

+    tree234 *alt_screen;	       /* lines on alternate screen */

+    int disptop;		       /* distance scrolled back (0 or -ve) */

+    int tempsblines;		       /* number of lines of .scrollback that

+					  can be retrieved onto the terminal

+					  ("temporary scrollback") */

+

+    termline **disptext;	       /* buffer of text on real screen */

+    int dispcursx, dispcursy;	       /* location of cursor on real screen */

+    int curstype;		       /* type of cursor on real screen */

+

+#define VBELL_TIMEOUT (TICKSPERSEC/10) /* visual bell lasts 1/10 sec */

+

+    struct beeptime *beephead, *beeptail;

+    int nbeeps;

+    int beep_overloaded;

+    long lastbeep;

+

+#define TTYPE termchar

+#define TSIZE (sizeof(TTYPE))

+

+#ifdef OPTIMISE_SCROLL

+    struct scrollregion *scrollhead, *scrolltail;

+#endif /* OPTIMISE_SCROLL */

+

+    int default_attr, curr_attr, save_attr;

+    termchar basic_erase_char, erase_char;

+

+    bufchain inbuf;		       /* terminal input buffer */

+    pos curs;			       /* cursor */

+    pos savecurs;		       /* saved cursor position */

+    int marg_t, marg_b;		       /* scroll margins */

+    int dec_om;			       /* DEC origin mode flag */

+    int wrap, wrapnext;		       /* wrap flags */

+    int insert;			       /* insert-mode flag */

+    int cset;			       /* 0 or 1: which char set */

+    int save_cset, save_csattr;	       /* saved with cursor position */

+    int save_utf, save_wnext;	       /* saved with cursor position */

+    int rvideo;			       /* global reverse video flag */

+    unsigned long rvbell_startpoint;   /* for ESC[?5hESC[?5l vbell */

+    int cursor_on;		       /* cursor enabled flag */

+    int reset_132;		       /* Flag ESC c resets to 80 cols */

+    int use_bce;		       /* Use Background coloured erase */

+    int cblinker;		       /* When blinking is the cursor on ? */

+    int tblinker;		       /* When the blinking text is on */

+    int blink_is_real;		       /* Actually blink blinking text */

+    int term_echoing;		       /* Does terminal want local echo? */

+    int term_editing;		       /* Does terminal want local edit? */

+    int sco_acs, save_sco_acs;	       /* CSI 10,11,12m -> OEM charset */

+    int vt52_bold;		       /* Force bold on non-bold colours */

+    int utf;			       /* Are we in toggleable UTF-8 mode? */

+    int utf_state;		       /* Is there a pending UTF-8 character */

+    int utf_char;		       /* and what is it so far. */

+    int utf_size;		       /* The size of the UTF character. */

+    int printing, only_printing;       /* Are we doing ANSI printing? */

+    int print_state;		       /* state of print-end-sequence scan */

+    bufchain printer_buf;	       /* buffered data for printer */

+    printer_job *print_job;

+

+    /* ESC 7 saved state for the alternate screen */

+    pos alt_savecurs;

+    int alt_save_attr;

+    int alt_save_cset, alt_save_csattr;

+    int alt_save_utf, alt_save_wnext;

+    int alt_save_sco_acs;

+

+    int rows, cols, savelines;

+    int has_focus;

+    int in_vbell;

+    long vbell_end;

+    int app_cursor_keys, app_keypad_keys, vt52_mode;

+    int repeat_off, cr_lf_return;

+    int seen_disp_event;

+    int big_cursor;

+

+    int xterm_mouse;		       /* send mouse messages to host */

+    int mouse_is_down;		       /* used while tracking mouse buttons */

+

+    int cset_attr[2];

+

+/*

+ * Saved settings on the alternate screen.

+ */

+    int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins;

+    int alt_cset, alt_sco_acs, alt_utf;

+    int alt_t, alt_b;

+    int alt_which;

+    int alt_sblines; /* # of lines on alternate screen that should be used for scrollback. */

+

+#define ARGS_MAX 32		       /* max # of esc sequence arguments */

+#define ARG_DEFAULT 0		       /* if an arg isn't specified */

+#define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) )

+    int esc_args[ARGS_MAX];

+    int esc_nargs;

+    int esc_query;

+#define ANSI(x,y)	((x)+((y)<<8))

+#define ANSI_QUE(x)	ANSI(x,TRUE)

+

+#define OSC_STR_MAX 2048

+    int osc_strlen;

+    char osc_string[OSC_STR_MAX + 1];

+    int osc_w;

+

+    char id_string[1024];

+

+    unsigned char *tabs;

+

+    enum {

+	TOPLEVEL,

+	SEEN_ESC,

+	SEEN_CSI,

+	SEEN_OSC,

+	SEEN_OSC_W,

+

+	DO_CTRLS,

+

+	SEEN_OSC_P,

+	OSC_STRING, OSC_MAYBE_ST,

+	VT52_ESC,

+	VT52_Y1,

+	VT52_Y2,

+	VT52_FG,

+	VT52_BG

+    } termstate;

+

+    enum {

+	NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED

+    } selstate;

+    enum {

+	LEXICOGRAPHIC, RECTANGULAR

+    } seltype;

+    enum {

+	SM_CHAR, SM_WORD, SM_LINE

+    } selmode;

+    pos selstart, selend, selanchor;

+

+    short wordness[256];

+

+    /* Mask of attributes to pay attention to when painting. */

+    int attr_mask;

+

+    wchar_t *paste_buffer;

+    int paste_len, paste_pos, paste_hold;

+    long last_paste;

+

+    void (*resize_fn)(void *, int, int);

+    void *resize_ctx;

+

+    void *ldisc;

+

+    void *frontend;

+

+    void *logctx;

+

+    struct unicode_data *ucsdata;

+

+    /*

+     * We maintain a full _copy_ of a Config structure here, not

+     * merely a pointer to it. That way, when we're passed a new

+     * one for reconfiguration, we can check the differences and

+     * adjust the _current_ setting of (e.g.) auto wrap mode rather

+     * than only the default.

+     */

+    Config cfg;

+

+    /*

+     * from_backend calls term_out, but it can also be called from

+     * the ldisc if the ldisc is called _within_ term_out. So we

+     * have to guard against re-entrancy - if from_backend is

+     * called recursively like this, it will simply add data to the

+     * end of the buffer term_out is in the process of working

+     * through.

+     */

+    int in_term_out;

+

+    /*

+     * We schedule a window update shortly after receiving terminal

+     * data. This tracks whether one is currently pending.

+     */

+    int window_update_pending;

+    long next_update;

+

+    /*

+     * Track pending blinks and tblinks.

+     */

+    int tblink_pending, cblink_pending;

+    long next_tblink, next_cblink;

+

+    /*

+     * These are buffers used by the bidi and Arabic shaping code.

+     */

+    termchar *ltemp;

+    int ltemp_size;

+    bidi_char *wcFrom, *wcTo;

+    int wcFromTo_size;

+    struct bidi_cache_entry *pre_bidi_cache, *post_bidi_cache;

+    int bidi_cache_size;

+};

+

+#define in_utf(term) ((term)->utf || (term)->ucsdata->line_codepage==CP_UTF8)

+

+#endif