Collect handling of wpixput and wpbuf into a helper class.
Replace direct access to a pair of co-dependent variables by calls to methods of a class that encapsulates their relation. Also replace C #define by C++ class constant.
This commit is contained in:
Hans-Bernhard Broeker
Corinna Vinschen
parent
d4bcecb3e9
commit
b0f78f15b7
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@ -59,17 +59,28 @@ static struct fhandler_base::rabuf_t con_ra;
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/* Write pending buffer for ESC sequence handling
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in xterm compatible mode */
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#define WPBUF_LEN 256
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static unsigned char wpbuf[WPBUF_LEN];
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static int wpixput;
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static unsigned char last_char;
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static inline void
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wpbuf_put (unsigned char x)
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/* simple helper class to accumulate output in a buffer
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and send that to the console on request: */
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static class write_pending_buffer
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{
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if (wpixput < WPBUF_LEN)
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wpbuf[wpixput++] = x;
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}
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private:
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static const size_t WPBUF_LEN = 256u;
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unsigned char buf[WPBUF_LEN];
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size_t ixput;
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public:
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inline void put (unsigned char x)
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{
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if (ixput < WPBUF_LEN)
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buf[ixput++] = x;
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}
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inline void empty () { ixput = 0u; }
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inline void send (HANDLE &handle, DWORD *wn = NULL)
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{
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WriteConsoleA (handle, buf, ixput, wn, 0);
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}
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} wpbuf;
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static void
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beep ()
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@ -2030,10 +2041,10 @@ fhandler_console::char_command (char c)
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break;
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#endif
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case 'b': /* REP */
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wpbuf_put (c);
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wpbuf.put (c);
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if (wincap.has_con_esc_rep ())
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/* Just send the sequence */
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &wn, 0);
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wpbuf.send (get_output_handle (), &wn);
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else if (last_char && last_char != '\n')
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for (int i = 0; i < con.args[0]; i++)
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WriteConsoleA (get_output_handle (), &last_char, 1, &wn, 0);
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@ -2041,9 +2052,9 @@ fhandler_console::char_command (char c)
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case 'r': /* DECSTBM */
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con.scroll_region.Top = con.args[0] ? con.args[0] - 1 : 0;
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con.scroll_region.Bottom = con.args[1] ? con.args[1] - 1 : -1;
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wpbuf_put (c);
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wpbuf.put (c);
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/* Just send the sequence */
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &wn, 0);
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wpbuf.send (get_output_handle (), &wn);
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break;
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case 'L': /* IL */
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if (wincap.has_con_broken_il_dl ())
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@ -2067,8 +2078,8 @@ fhandler_console::char_command (char c)
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y + 1 - con.b.srWindow.Top,
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srBottom + 1 - con.b.srWindow.Top);
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WriteConsoleA (get_output_handle (), buf, strlen (buf), &wn, 0);
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wpbuf_put ('T');
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &wn, 0);
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wpbuf.put ('T');
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wpbuf.send (get_output_handle (), &wn);
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__small_sprintf (buf, "\033[%d;%dr",
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srTop + 1 - con.b.srWindow.Top,
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srBottom + 1 - con.b.srWindow.Top);
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@ -2079,9 +2090,9 @@ fhandler_console::char_command (char c)
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}
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else
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{
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wpbuf_put (c);
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wpbuf.put (c);
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/* Just send the sequence */
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &wn, 0);
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wpbuf.send (get_output_handle (), &wn);
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}
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break;
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case 'M': /* DL */
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@ -2095,8 +2106,8 @@ fhandler_console::char_command (char c)
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y + 1 - con.b.srWindow.Top,
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srBottom + 1 - con.b.srWindow.Top);
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WriteConsoleA (get_output_handle (), buf, strlen (buf), &wn, 0);
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wpbuf_put ('S');
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &wn, 0);
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wpbuf.put ('S');
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wpbuf.send (get_output_handle (), &wn);
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__small_sprintf (buf, "\033[%d;%dr",
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srTop + 1 - con.b.srWindow.Top,
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srBottom + 1 - con.b.srWindow.Top);
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@ -2107,13 +2118,13 @@ fhandler_console::char_command (char c)
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}
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else
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{
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wpbuf_put (c);
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wpbuf.put (c);
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/* Just send the sequence */
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &wn, 0);
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wpbuf.send (get_output_handle (), &wn);
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}
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break;
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case 'J': /* ED */
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wpbuf_put (c);
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wpbuf.put (c);
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if (con.args[0] == 3 && wincap.has_con_broken_csi3j ())
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{ /* Workaround for broken CSI3J in Win10 1809 */
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CONSOLE_SCREEN_BUFFER_INFO sbi;
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@ -2131,7 +2142,7 @@ fhandler_console::char_command (char c)
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}
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else
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/* Just send the sequence */
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &wn, 0);
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wpbuf.send (get_output_handle (), &wn);
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break;
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case 'h': /* DECSET */
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case 'l': /* DECRST */
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@ -2139,9 +2150,9 @@ fhandler_console::char_command (char c)
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con.screen_alternated = true;
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else
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con.screen_alternated = false;
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wpbuf_put (c);
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wpbuf.put (c);
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/* Just send the sequence */
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &wn, 0);
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wpbuf.send (get_output_handle (), &wn);
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if (con.saw_question_mark)
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{
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bool need_fix_tab_position = false;
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@ -2159,15 +2170,15 @@ fhandler_console::char_command (char c)
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con.scroll_region.Top = 0;
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con.scroll_region.Bottom = -1;
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}
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wpbuf_put (c);
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wpbuf.put (c);
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/* Just send the sequence */
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &wn, 0);
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wpbuf.send (get_output_handle (), &wn);
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break;
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default:
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/* Other escape sequences */
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wpbuf_put (c);
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wpbuf.put (c);
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/* Just send the sequence */
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &wn, 0);
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wpbuf.send (get_output_handle (), &wn);
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break;
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}
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return;
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@ -2874,7 +2885,7 @@ do_print:
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break;
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case ESC:
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con.state = gotesc;
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wpbuf_put (*found);
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wpbuf.put (*found);
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break;
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case DWN:
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cursor_get (&x, &y);
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@ -2989,7 +3000,7 @@ fhandler_console::write (const void *vsrc, size_t len)
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case gotesc:
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if (*src == '[') /* CSI Control Sequence Introducer */
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{
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wpbuf_put (*src);
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wpbuf.put (*src);
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con.state = gotsquare;
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memset (con.args, 0, sizeof con.args);
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con.nargs = 0;
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@ -3005,13 +3016,13 @@ fhandler_console::write (const void *vsrc, size_t len)
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/* For xterm mode only */
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DWORD n;
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/* Just send the sequence */
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wpbuf_put (*src);
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &n, 0);
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wpbuf.put (*src);
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wpbuf.send (get_output_handle (), &n);
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}
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else if (con.savex >= 0 && con.savey >= 0)
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cursor_set (false, con.savex, con.savey);
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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}
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else if (*src == '7') /* DECSC Save cursor position */
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{
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@ -3020,13 +3031,13 @@ fhandler_console::write (const void *vsrc, size_t len)
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/* For xterm mode only */
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DWORD n;
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/* Just send the sequence */
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wpbuf_put (*src);
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &n, 0);
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wpbuf.put (*src);
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wpbuf.send (get_output_handle (), &n);
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}
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else
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cursor_get (&con.savex, &con.savey);
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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}
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else if (wincap.has_con_24bit_colors () && !con_is_legacy
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&& wincap.has_con_broken_il_dl () && *src == 'M')
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@ -3048,14 +3059,14 @@ fhandler_console::write (const void *vsrc, size_t len)
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buf, strlen (buf), &n, 0);
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}
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/* Substitute "CSI Ps T" */
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wpbuf_put ('[');
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wpbuf_put ('T');
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wpbuf.put ('[');
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wpbuf.put ('T');
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}
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else
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wpbuf_put (*src);
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &n, 0);
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wpbuf.put (*src);
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wpbuf.send (get_output_handle (), &n);
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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}
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else if (wincap.has_con_24bit_colors () && !con_is_legacy)
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{
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@ -3067,28 +3078,28 @@ fhandler_console::write (const void *vsrc, size_t len)
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/* ESC sequences below (e.g. OSC, etc) are left to xterm
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emulation in xterm compatible mode, therefore, are not
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handled and just sent them. */
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wpbuf_put (*src);
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wpbuf.put (*src);
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/* Just send the sequence */
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DWORD n;
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WriteConsoleA (get_output_handle (), wpbuf, wpixput, &n, 0);
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wpbuf.send (get_output_handle (), &n);
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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}
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else if (*src == ']') /* OSC Operating System Command */
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{
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wpbuf_put (*src);
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wpbuf.put (*src);
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con.rarg = 0;
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con.my_title_buf[0] = '\0';
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con.state = gotrsquare;
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}
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else if (*src == '(') /* Designate G0 character set */
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{
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wpbuf_put (*src);
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wpbuf.put (*src);
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con.state = gotparen;
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}
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else if (*src == ')') /* Designate G1 character set */
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{
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wpbuf_put (*src);
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wpbuf.put (*src);
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con.state = gotrparen;
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}
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else if (*src == 'M') /* Reverse Index (scroll down) */
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@ -3096,7 +3107,7 @@ fhandler_console::write (const void *vsrc, size_t len)
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con.fillin (get_output_handle ());
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scroll_buffer_screen (0, 0, -1, -1, 0, 1);
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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}
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else if (*src == 'c') /* RIS Full Reset */
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{
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@ -3107,17 +3118,17 @@ fhandler_console::write (const void *vsrc, size_t len)
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cursor_set (false, 0, 0);
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clear_screen (cl_buf_beg, cl_buf_beg, cl_buf_end, cl_buf_end);
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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}
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else if (*src == 'R') /* ? */
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{
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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}
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else
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{
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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}
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src++;
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break;
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@ -3126,19 +3137,19 @@ fhandler_console::write (const void *vsrc, size_t len)
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{
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if (con.nargs < MAXARGS)
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con.args[con.nargs] = con.args[con.nargs] * 10 + *src - '0';
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wpbuf_put (*src);
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wpbuf.put (*src);
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src++;
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}
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else if (*src == ';')
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{
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wpbuf_put (*src);
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wpbuf.put (*src);
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src++;
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if (con.nargs < MAXARGS)
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con.nargs++;
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}
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else if (*src == ' ')
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{
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wpbuf_put (*src);
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wpbuf.put (*src);
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src++;
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con.saw_space = true;
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con.state = gotcommand;
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@ -3151,7 +3162,7 @@ fhandler_console::write (const void *vsrc, size_t len)
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con.nargs++;
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char_command (*src++);
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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break;
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case gotrsquare:
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if (isdigit (*src))
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@ -3162,7 +3173,7 @@ fhandler_console::write (const void *vsrc, size_t len)
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con.state = eatpalette;
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else
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con.state = eattitle;
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wpbuf_put (*src);
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wpbuf.put (*src);
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src++;
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break;
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case eattitle:
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@ -3174,13 +3185,13 @@ fhandler_console::write (const void *vsrc, size_t len)
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if (*src == '\007' && con.state == gettitle)
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set_console_title (con.my_title_buf);
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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}
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else if (n < TITLESIZE)
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{
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con.my_title_buf[n++] = *src;
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con.my_title_buf[n] = '\0';
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wpbuf_put (*src);
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wpbuf.put (*src);
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}
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src++;
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break;
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@ -3188,13 +3199,13 @@ fhandler_console::write (const void *vsrc, size_t len)
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case eatpalette:
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if (*src == '\033')
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{
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wpbuf_put (*src);
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wpbuf.put (*src);
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con.state = endpalette;
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}
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else if (*src == '\a')
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{
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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}
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src++;
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break;
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@ -3204,14 +3215,14 @@ fhandler_console::write (const void *vsrc, size_t len)
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else
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/* Sequence error (abort) */
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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src++;
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break;
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case gotsquare:
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if (*src == ';')
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{
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con.state = gotarg1;
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wpbuf_put (*src);
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wpbuf.put (*src);
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if (con.nargs < MAXARGS)
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con.nargs++;
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src++;
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@ -3226,7 +3237,7 @@ fhandler_console::write (const void *vsrc, size_t len)
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con.saw_greater_than_sign = true;
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else if (*src == '!')
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con.saw_exclamation_mark = true;
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wpbuf_put (*src);
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wpbuf.put (*src);
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/* ignore any extra chars between [ and first arg or command */
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src++;
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}
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@ -3239,7 +3250,7 @@ fhandler_console::write (const void *vsrc, size_t len)
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else
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con.vt100_graphics_mode_G0 = false;
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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src++;
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break;
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case gotrparen: /* Designate G1 Character Set (ISO 2022) */
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@ -3248,7 +3259,7 @@ fhandler_console::write (const void *vsrc, size_t len)
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else
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con.vt100_graphics_mode_G1 = false;
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con.state = normal;
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wpixput = 0;
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wpbuf.empty();
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src++;
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break;
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}
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