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7
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1 /* vi:set ts=8 sts=4 sw=4:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9
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10 /*
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11 * os_msdos.c
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12 *
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13 * MSDOS system-dependent routines.
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14 * A cheap plastic imitation of the amiga dependent code.
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15 * A lot in this file was made by Juergen Weigert (jw).
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16 *
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17 * DJGPP changes by Gert van Antwerpen
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18 * Faster text screens by John Lange (jlange@zilker.net)
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19 * Windows clipboard functionality added by David Kotchan (dk)
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20 *
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21 * Some functions are also used for Win16 (MS-Windows 3.1).
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22 */
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23
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24 #include "vim.h"
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25
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3927
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26 /* cproto fails on missing include files */
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27 #ifndef PROTO
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28 # include <conio.h>
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29 #endif
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7
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30
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31 /*
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32 * MS-DOS only code, not used for Win16.
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33 */
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34 #ifndef WIN16
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35
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36
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3927
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37 #ifndef PROTO
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38 # include <bios.h>
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39 # ifdef DJGPP
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40 # include <dpmi.h>
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41 # include <signal.h>
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42 # include <sys/movedata.h>
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43 # include <crt0.h>
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44 # ifdef FEAT_CLIPBOARD
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45 # include <sys/segments.h>
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46 # endif
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47 # else
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48 # include <alloc.h>
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7
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49 # endif
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50 #endif
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51
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52 #if defined(DJGPP) || defined(PROTO)
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53 # define _cdecl /* DJGPP doesn't have this */
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54 #endif
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55
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56 static int cbrk_pressed = FALSE; /* set by ctrl-break interrupt */
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57 static int ctrlc_pressed = FALSE; /* set when ctrl-C or ctrl-break detected */
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58 static int delayed_redraw = FALSE; /* set when ctrl-C detected */
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59
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60 static int bioskey_read = _NKEYBRD_READ; /* bioskey() argument: read key */
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61 static int bioskey_ready = _NKEYBRD_READY; /* bioskey() argument: key ready? */
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62
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63 #ifdef FEAT_MOUSE
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64 static int mouse_avail = FALSE; /* mouse present */
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65 static int mouse_active; /* mouse enabled */
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66 static int mouse_hidden; /* mouse not shown */
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67 static int mouse_click = -1; /* mouse status */
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68 static int mouse_last_click = -1; /* previous status at click */
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1210
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69 static int mouse_x = -1; /* mouse x coordinate */
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70 static int mouse_y = -1; /* mouse y coordinate */
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7
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71 static long mouse_click_time = 0; /* biostime() of last click */
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72 static int mouse_click_count = 0; /* count for multi-clicks */
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73 static int mouse_click_x = 0; /* x of previous mouse click */
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74 static int mouse_click_y = 0; /* y of previous mouse click */
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75 static linenr_T mouse_topline = 0; /* w_topline at previous mouse click */
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76 #ifdef FEAT_DIFF
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77 static int mouse_topfill = 0; /* w_topfill at previous mouse click */
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78 #endif
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79 static int mouse_x_div = 8; /* column = x coord / mouse_x_div */
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80 static int mouse_y_div = 8; /* line = y coord / mouse_y_div */
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81 #endif
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82
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83 #define BIOSTICK 55 /* biostime() increases one tick about
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84 every 55 msec */
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85
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86 static int orig_attr = 0x0700; /* video attributes when starting */
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87
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88 static int S_iLeft = 0; /* Scroll window; these are 1 offset */
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89 static int S_iTop = 0;
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90 static int S_iRight = 0;
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91 static int S_iBottom = 0;
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92
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93 /*
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94 * Need to remember the values, because we set horizontal and vertical
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95 * edges separately.
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96 */
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97 static void
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98 mywindow(int iLeft, int iTop, int iRight, int iBottom)
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99 {
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100 S_iLeft = iLeft;
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101 S_iTop = iTop;
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102 S_iRight = iRight;
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103 S_iBottom = iBottom;
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104 window(iLeft, iTop, iRight, iBottom);
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105 }
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106
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107 #ifdef DJGPP
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108 /*
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109 * For DJGPP, use our own functions for fast text screens. JML 1/18/98
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110 */
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111
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112 unsigned long S_ulScreenBase = 0xb8000;
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113 unsigned short S_uiAttribute = 0;
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114 int S_iCurrentRow = 0; /* These are 0 offset */
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115 int S_iCurrentColumn = 0;
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116 short S_selVideo; /* Selector for DJGPP direct video transfers */
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117
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118 /*
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119 * Use burst writes to improve mch_write speed - VJN 01/10/99
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120 */
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121 unsigned short S_linebuffer[8000]; /* <VN> enough for 160x50 */
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122 unsigned short S_blankbuffer[256]; /* <VN> max length of console line */
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123 unsigned short *S_linebufferpos = S_linebuffer;
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124 int S_iBufferRow;
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125 int S_iBufferColumn;
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126
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127 static void
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128 myflush(void)
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129 {
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130 if (S_linebufferpos != S_linebuffer)
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131 {
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132 _dosmemputw(S_linebuffer, (S_linebufferpos - S_linebuffer),
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133 S_ulScreenBase
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134 + S_iBufferRow * (Columns << 1) + (S_iBufferColumn << 1));
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135 S_linebufferpos = S_linebuffer;
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136 }
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137 }
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138
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139 static void
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140 mygotoxy(int x, int y)
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141 {
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142 S_iCurrentRow = y - 1;
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143 S_iCurrentColumn = x - 1;
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144 }
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145
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146 /*
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147 * Set the system cursor to our cursor position.
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148 */
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149 static void
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150 set_sys_cursor(void)
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151 {
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152 if (term_console && full_screen)
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153 {
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154 myflush();
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155 gotoxy(S_iCurrentColumn + 1, S_iCurrentRow + 1);
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156 }
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157 }
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158
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159 static void
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160 setblankbuffer(unsigned short uiValue)
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161 {
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162 int i;
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163 static unsigned short olduiValue = 0;
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164
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165 if (olduiValue != uiValue)
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166 {
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167 /* Load blank line buffer with spaces */
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168 for (i = 0; i < Columns; ++i)
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169 S_blankbuffer[i] = uiValue;
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170 olduiValue = uiValue;
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171 }
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172 }
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173
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174 static void
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175 myclreol(void)
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176 {
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177 /* Clear to end of line */
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178 setblankbuffer(S_uiAttribute | ' ');
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179 _dosmemputw(S_blankbuffer, S_iRight - S_iCurrentColumn, S_ulScreenBase
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180 + (S_iCurrentRow) * (Columns << 1)
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181 + (S_iCurrentColumn << 1));
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182 }
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183
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184 static void
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185 myclrscr(void)
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186 {
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187 /* Clear whole screen */
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188 short iColumn;
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189 int endpoint = (Rows * Columns) << 1;
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190
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191 setblankbuffer(S_uiAttribute | ' ');
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192
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193 for (iColumn = 0; iColumn < endpoint; iColumn += (Columns << 1))
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194 _dosmemputw(S_blankbuffer, Columns, S_ulScreenBase + iColumn);
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195 }
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196
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197 static void
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198 mydelline(void)
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199 {
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200 short iRow, iColumn;
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201
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202 iColumn = (S_iLeft - 1) << 1;
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203
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204 /* Copy the lines underneath */
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205 for (iRow = S_iCurrentRow; iRow < S_iBottom - 1; iRow++)
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206 movedata(S_selVideo, (((iRow + 1) * Columns) << 1) + iColumn,
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207 S_selVideo, ((iRow * Columns) << 1) + iColumn,
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208 (S_iRight - S_iLeft + 1) << 1);
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209
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210 /* Clear the new row */
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211 setblankbuffer(S_uiAttribute | ' ');
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212
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213 _dosmemputw(S_blankbuffer, (S_iRight - S_iLeft) + 1, S_ulScreenBase
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214 + (S_iBottom - 1) * (Columns << 1) + iColumn);
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215 }
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216
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217 static void
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218 myinsline(void)
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219 {
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220 short iRow, iColumn;
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221
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222 iColumn = (S_iLeft - 1) << 1;
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223
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224 /* Copy the lines underneath */
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225 for (iRow = S_iBottom - 1; iRow >= S_iTop; iRow--)
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226 movedata(S_selVideo, (((iRow - 1) * Columns) << 1) + iColumn,
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227 S_selVideo, ((iRow * Columns) << 1) + iColumn,
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228 (S_iRight - S_iLeft + 1) << 1);
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229
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230 /* Clear the new row */
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231 setblankbuffer(S_uiAttribute | ' ');
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232
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233 _dosmemputw(S_blankbuffer, (S_iRight - S_iLeft) + 1, S_ulScreenBase
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234 + (S_iTop - 1) * (Columns << 1) + iColumn);
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235 }
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236
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237 /*
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238 * Scroll the screen one line up, clear the last line.
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239 */
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240 static void
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241 myscroll(void)
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242 {
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243 short iRow, iColumn;
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244
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245 iColumn = (S_iLeft - 1) << 1;
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246
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247 /* Copy the screen */
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248 for (iRow = S_iTop; iRow < S_iBottom; iRow++)
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249 movedata(S_selVideo, ((iRow * Columns) << 1) + iColumn,
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250 S_selVideo, (((iRow - 1) * Columns) << 1) + iColumn,
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251 (S_iRight - S_iLeft + 1) << 1);
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252
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253 /* Clear the bottom row */
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254 setblankbuffer(S_uiAttribute | ' ');
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255
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256 _dosmemputw(S_blankbuffer, (S_iRight - S_iLeft) + 1, S_ulScreenBase
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257 + (S_iBottom - 1) * (Columns << 1) + iColumn);
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258 }
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259
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260 static int
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261 myputch(int iChar)
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262 {
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263 unsigned short uiValue;
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264
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265 if (iChar == '\n')
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266 {
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267 myflush();
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268 if (S_iCurrentRow >= S_iBottom - S_iTop)
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269 myscroll();
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270 else
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271 {
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272 S_iCurrentColumn = S_iLeft - 1;
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273 S_iCurrentRow++;
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274 }
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275 }
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276 else if (iChar == '\r')
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277 {
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278 myflush();
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279 S_iCurrentColumn = S_iLeft - 1;
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280 }
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281 else if (iChar == '\b')
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282 {
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283 myflush();
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284 if (S_iCurrentColumn >= S_iLeft)
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285 S_iCurrentColumn--;
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286 }
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287 else if (iChar == 7)
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288 {
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289 sound(440); /* short beep */
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290 delay(200);
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291 nosound();
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292 }
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293 else
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294 {
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295 uiValue = S_uiAttribute | (unsigned char)iChar;
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296
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297 /*
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298 * Normal char - are we starting to buffer?
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299 */
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300 if (S_linebufferpos == S_linebuffer)
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301 {
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302 S_iBufferColumn = S_iCurrentColumn;
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303 S_iBufferRow = S_iCurrentRow;
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304 }
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305
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306 *S_linebufferpos++ = uiValue;
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307
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308 S_iCurrentColumn++;
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309 if (S_iCurrentColumn >= S_iRight && S_iCurrentRow >= S_iBottom - S_iTop)
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310 {
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311 myflush();
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312 myscroll();
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313 S_iCurrentColumn = S_iLeft - 1;
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314 S_iCurrentRow++;
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315 }
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316 }
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317
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318 return 0;
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319 }
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320
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321 static void
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322 mytextinit(struct text_info *pTextinfo)
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323 {
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324 S_selVideo = __dpmi_segment_to_descriptor(S_ulScreenBase >> 4);
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325 S_uiAttribute = pTextinfo->normattr << 8;
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326 }
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327
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328 static void
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329 get_screenbase(void)
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330 {
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331 static union REGS regs;
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332
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333 /* old Hercules grafic card has different base address (Macewicz) */
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334 regs.h.ah = 0x0f;
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335 (void)int86(0x10, ®s, ®s); /* int 10 0f */
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336 if (regs.h.al == 0x07) /* video mode 7 -- hercules mono */
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337 S_ulScreenBase = 0xb0000;
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338 else
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339 S_ulScreenBase = 0xb8000;
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340 }
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341
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342 static void
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343 mytextattr(int iAttribute)
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344 {
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345 S_uiAttribute = (unsigned short)iAttribute << 8;
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346 }
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347
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348 static void
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349 mynormvideo(void)
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350 {
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351 mytextattr(orig_attr);
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352 }
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353
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354 static void
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355 mytextcolor(int iTextColor)
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356 {
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357 S_uiAttribute = (unsigned short)((S_uiAttribute & 0xf000)
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358 | (unsigned short)iTextColor << 8);
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359 }
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360
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361 static void
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362 mytextbackground(int iBkgColor)
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363 {
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364 S_uiAttribute = (unsigned short)((S_uiAttribute & 0x0f00)
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365 | (unsigned short)(iBkgColor << 12));
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366 }
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367 /*
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368 * Getdigits: Get a number from a string and skip over it.
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369 * Note: the argument is a pointer to a char_u pointer!
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370 */
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371
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372 static long
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373 mygetdigits(pp)
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374 char_u **pp;
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375 {
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376 char_u *p;
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377 long retval = 0;
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378
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379 p = *pp;
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380 if (*p == '-') /* skip negative sign */
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381 ++p;
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382 while (VIM_ISDIGIT(*p))
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383 {
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384 retval = (retval * 10) + (*p - '0');
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385 ++p;
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386 }
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387 if (**pp == '-') /* process negative sign */
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388 retval = -retval;
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389
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390 *pp = p;
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391 return retval;
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392 }
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393 #else
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394 # define mygotoxy gotoxy
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395 # define myputch putch
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396 # define myscroll scroll
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397 # define mynormvideo normvideo
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398 # define mytextattr textattr
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399 # define mytextcolor textcolor
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400 # define mytextbackground textbackground
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401 # define mygetdigits getdigits
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402 # define myclreol clreol
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403 # define myclrscr clrscr
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404 # define myinsline insline
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405 # define mydelline delline
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406 #endif
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407
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408 static const struct
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409 {
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410 char_u scancode;
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411 char_u metakey;
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412 } altkey_table[] =
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413 {
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414 {0x1e, 0xe1}, /* a */
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415 {0x30, 0xe2}, /* b */
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416 {0x2e, 0xe3}, /* c */
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417 {0x20, 0xe4}, /* d */
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418 {0x12, 0xe5}, /* e */
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419 {0x21, 0xe6}, /* f */
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420 {0x22, 0xe7}, /* g */
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421 {0x23, 0xe8}, /* h */
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422 {0x17, 0xe9}, /* i */
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423 {0x24, 0xea}, /* j */
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|
|
424 {0x25, 0xeb}, /* k */
|
|
|
425 {0x26, 0xec}, /* l */
|
|
|
426 {0x32, 0xed}, /* m */
|
|
|
427 {0x31, 0xee}, /* n */
|
|
|
428 {0x18, 0xef}, /* o */
|
|
|
429 {0x19, 0xf0}, /* p */
|
|
|
430 {0x10, 0xf1}, /* q */
|
|
|
431 {0x13, 0xf2}, /* r */
|
|
|
432 {0x1f, 0xf3}, /* s */
|
|
|
433 {0x14, 0xf4}, /* t */
|
|
|
434 {0x16, 0xf5}, /* u */
|
|
|
435 {0x2f, 0xf6}, /* v */
|
|
|
436 {0x11, 0xf7}, /* w */
|
|
|
437 {0x2d, 0xf8}, /* x */
|
|
|
438 {0x15, 0xf9}, /* y */
|
|
|
439 {0x2c, 0xfa}, /* z */
|
|
|
440 {0x78, 0xb1}, /* 1 */
|
|
|
441 {0x79, 0xb2}, /* 2 */
|
|
|
442 {0x7a, 0xb3}, /* 3 */
|
|
|
443 {0x7b, 0xb4}, /* 4 */
|
|
|
444 {0x7c, 0xb5}, /* 5 */
|
|
|
445 {0x7d, 0xb6}, /* 6 */
|
|
|
446 {0x7e, 0xb7}, /* 7 */
|
|
|
447 {0x7f, 0xb8}, /* 8 */
|
|
|
448 {0x80, 0xb9}, /* 9 */
|
|
|
449 {0x81, 0xb0}, /* 0 */
|
|
|
450 };
|
|
|
451
|
|
|
452 /*
|
|
|
453 * Translate extended keycodes into meta-chars where applicable
|
|
|
454 */
|
|
|
455 static int
|
|
|
456 translate_altkeys(int rawkey)
|
|
|
457 {
|
|
|
458 int i, c;
|
|
|
459
|
|
|
460 if ((rawkey & 0xff) == 0)
|
|
|
461 {
|
|
|
462 c = (rawkey >> 8);
|
|
|
463 for (i = sizeof(altkey_table) / sizeof(altkey_table[0]); --i >= 0; )
|
|
|
464 {
|
|
|
465 if (c == altkey_table[i].scancode)
|
|
|
466 return (int)altkey_table[i].metakey;
|
|
|
467 }
|
|
|
468 }
|
|
|
469 return rawkey;
|
|
|
470 }
|
|
|
471
|
|
|
472 /*
|
|
1210
|
473 * Set normal fg/bg color, based on T_ME. Called when t_me has been set.
|
|
7
|
474 */
|
|
|
475 void
|
|
|
476 mch_set_normal_colors()
|
|
|
477 {
|
|
|
478 char_u *p;
|
|
|
479 int n;
|
|
|
480
|
|
|
481 cterm_normal_fg_color = (orig_attr & 0xf) + 1;
|
|
|
482 cterm_normal_bg_color = ((orig_attr >> 4) & 0xf) + 1;
|
|
|
483 if (T_ME[0] == ESC && T_ME[1] == '|')
|
|
|
484 {
|
|
|
485 p = T_ME + 2;
|
|
|
486 n = getdigits(&p);
|
|
|
487 if (*p == 'm' && n > 0)
|
|
|
488 {
|
|
|
489 cterm_normal_fg_color = (n & 0xf) + 1;
|
|
|
490 cterm_normal_bg_color = ((n >> 4) & 0xf) + 1;
|
|
|
491 }
|
|
|
492 }
|
|
|
493 }
|
|
|
494
|
|
|
495 #if defined(MCH_CURSOR_SHAPE) || defined(PROTO)
|
|
|
496 /*
|
|
|
497 * Save/restore the shape of the cursor.
|
|
|
498 * call with FALSE to save, TRUE to restore
|
|
|
499 */
|
|
|
500 static void
|
|
|
501 mch_restore_cursor_shape(int restore)
|
|
|
502 {
|
|
|
503 static union REGS regs;
|
|
|
504 static int saved = FALSE;
|
|
|
505
|
|
|
506 if (restore)
|
|
|
507 {
|
|
|
508 if (saved)
|
|
36
|
509 regs.h.ah = 0x01; /* Set Cursor */
|
|
7
|
510 else
|
|
|
511 return;
|
|
|
512 }
|
|
|
513 else
|
|
|
514 {
|
|
36
|
515 regs.h.ah = 0x03; /* Get Cursor */
|
|
|
516 regs.h.bh = 0x00; /* Page */
|
|
7
|
517 saved = TRUE;
|
|
|
518 }
|
|
|
519
|
|
|
520 (void)int86(0x10, ®s, ®s);
|
|
|
521 }
|
|
|
522
|
|
|
523 /*
|
|
|
524 * Set the shape of the cursor.
|
|
|
525 * 'thickness' can be from 0 (thin) to 7 (block)
|
|
|
526 */
|
|
|
527 static void
|
|
|
528 mch_set_cursor_shape(int thickness)
|
|
|
529 {
|
|
|
530 union REGS regs;
|
|
|
531
|
|
36
|
532 regs.h.ch = 7 - thickness; /* Starting Line */
|
|
|
533 regs.h.cl = 7; /* Ending Line */
|
|
|
534 regs.h.ah = 0x01; /* Set Cursor */
|
|
7
|
535 (void)int86(0x10, ®s, ®s);
|
|
|
536 }
|
|
|
537
|
|
|
538 void
|
|
|
539 mch_update_cursor(void)
|
|
|
540 {
|
|
|
541 int idx;
|
|
|
542 int thickness;
|
|
|
543
|
|
|
544 /*
|
|
|
545 * How the cursor is drawn depends on the current mode.
|
|
|
546 */
|
|
|
547 idx = get_shape_idx(FALSE);
|
|
|
548
|
|
|
549 if (shape_table[idx].shape == SHAPE_BLOCK)
|
|
|
550 thickness = 7;
|
|
|
551 else
|
|
|
552 thickness = (7 * shape_table[idx].percentage + 90) / 100;
|
|
|
553 mch_set_cursor_shape(thickness);
|
|
|
554 }
|
|
|
555 #endif
|
|
|
556
|
|
|
557 /*
|
|
3634
|
558 * Return amount of memory currently available in Kbyte.
|
|
7
|
559 */
|
|
|
560 long_u
|
|
|
561 mch_avail_mem(int special)
|
|
|
562 {
|
|
|
563 #ifdef DJGPP
|
|
3634
|
564 return _go32_dpmi_remaining_virtual_memory() >> 10;
|
|
7
|
565 #else
|
|
3634
|
566 return coreleft() >> 10;
|
|
7
|
567 #endif
|
|
|
568 }
|
|
|
569
|
|
|
570 #ifdef FEAT_MOUSE
|
|
|
571
|
|
|
572 /*
|
|
|
573 * Set area where mouse can be moved to: The whole screen.
|
|
|
574 * Rows and Columns must be valid when calling!
|
|
|
575 */
|
|
|
576 static void
|
|
|
577 mouse_area(void)
|
|
|
578 {
|
|
|
579 union REGS regs;
|
|
|
580
|
|
|
581 if (mouse_avail)
|
|
|
582 {
|
|
|
583 regs.x.cx = 0; /* mouse visible between cx and dx */
|
|
|
584 regs.x.dx = Columns * mouse_x_div - 1;
|
|
|
585 regs.x.ax = 7;
|
|
|
586 (void)int86(0x33, ®s, ®s);
|
|
|
587
|
|
|
588 regs.x.cx = 0; /* mouse visible between cx and dx */
|
|
|
589 regs.x.dx = Rows * mouse_y_div - 1;
|
|
|
590 regs.x.ax = 8;
|
|
|
591 (void)int86(0x33, ®s, ®s);
|
|
|
592 }
|
|
|
593 }
|
|
|
594
|
|
|
595 static void
|
|
|
596 show_mouse(int on)
|
|
|
597 {
|
|
|
598 static int was_on = FALSE;
|
|
|
599 union REGS regs;
|
|
|
600
|
|
|
601 if (mouse_avail)
|
|
|
602 {
|
|
|
603 if (!mouse_active || mouse_hidden)
|
|
|
604 on = FALSE;
|
|
|
605 /*
|
|
|
606 * Careful: Each switch on must be compensated by exactly one switch
|
|
|
607 * off
|
|
|
608 */
|
|
|
609 if ((on && !was_on) || (!on && was_on))
|
|
|
610 {
|
|
|
611 was_on = on;
|
|
|
612 regs.x.ax = on ? 1 : 2;
|
|
|
613 int86(0x33, ®s, ®s); /* show mouse */
|
|
|
614 if (on)
|
|
|
615 mouse_area();
|
|
|
616 }
|
|
|
617 }
|
|
|
618 }
|
|
|
619
|
|
|
620 #endif
|
|
|
621
|
|
|
622 /*
|
|
|
623 * Version of kbhit() and getch() that use direct console I/O.
|
|
|
624 * This avoids trouble with CTRL-P and the like, and should work over a telnet
|
|
|
625 * connection (it works for Xvi).
|
|
|
626 */
|
|
|
627
|
|
|
628 static int cons_key = -1;
|
|
|
629
|
|
|
630 /*
|
|
|
631 * Try to get one character directly from the console.
|
|
|
632 * If there is a key, it is stored in cons_key.
|
|
|
633 * Only call when cons_key is -1!
|
|
|
634 */
|
|
|
635 static void
|
|
|
636 cons_getkey(void)
|
|
|
637 {
|
|
|
638 union REGS regs;
|
|
|
639
|
|
|
640 /* call DOS function 6: Direct console I/O */
|
|
|
641 regs.h.ah = 0x06;
|
|
|
642 regs.h.dl = 0xff;
|
|
|
643 (void)intdos(®s, ®s);
|
|
|
644 if ((regs.x.flags & 0x40) == 0) /* zero flag not set? */
|
|
|
645 cons_key = (regs.h.al & 0xff);
|
|
|
646 }
|
|
|
647
|
|
|
648 /*
|
|
|
649 * Return TRUE if a character is available.
|
|
|
650 */
|
|
|
651 static int
|
|
|
652 cons_kbhit(void)
|
|
|
653 {
|
|
|
654 if (cons_key < 0)
|
|
|
655 cons_getkey();
|
|
|
656 return (cons_key >= 0);
|
|
|
657 }
|
|
|
658
|
|
|
659 /*
|
|
|
660 * Return a character from the console.
|
|
|
661 * Should only be called when vim_kbhit() returns TRUE.
|
|
|
662 */
|
|
|
663 static int
|
|
|
664 cons_getch(void)
|
|
|
665 {
|
|
|
666 int c = -1;
|
|
|
667
|
|
|
668 if (cons_key < 0)
|
|
|
669 cons_getkey();
|
|
|
670 c = cons_key;
|
|
|
671 cons_key = -1;
|
|
|
672 return c;
|
|
|
673 }
|
|
|
674
|
|
|
675
|
|
|
676 #ifdef DJGPP
|
|
|
677 /*
|
|
|
678 * DJGPP provides a kbhit() function that goes to the BIOS instead of DOS.
|
|
|
679 * This doesn't work for terminals connected to a serial port.
|
|
|
680 * Redefine kbhit() here to make it work.
|
|
|
681 */
|
|
|
682 static int
|
|
|
683 vim_kbhit(void)
|
|
|
684 {
|
|
|
685 union REGS regs;
|
|
|
686
|
|
|
687 regs.h.ah = 0x0b;
|
|
|
688 (void)intdos(®s, ®s);
|
|
|
689 return regs.h.al;
|
|
|
690 }
|
|
|
691
|
|
|
692 #ifdef kbhit
|
|
|
693 # undef kbhit /* might have been defined in conio.h */
|
|
|
694 #endif
|
|
|
695 #define kbhit() vim_kbhit()
|
|
|
696
|
|
|
697 #endif
|
|
|
698
|
|
|
699 /*
|
|
|
700 * Simulate WaitForChar() by slowly polling with bioskey(1) or kbhit().
|
|
|
701 *
|
|
|
702 * If Vim should work over the serial line after a 'ctty com1' we must use
|
|
|
703 * kbhit() and getch(). (jw)
|
|
|
704 * Usually kbhit() is not used, because then CTRL-C and CTRL-P
|
|
4352
|
705 * will be caught by DOS (mool).
|
|
7
|
706 *
|
|
|
707 * return TRUE if a character is available, FALSE otherwise
|
|
|
708 */
|
|
|
709
|
|
|
710 #define FOREVER 1999999999L
|
|
|
711
|
|
|
712 static int
|
|
|
713 WaitForChar(long msec)
|
|
|
714 {
|
|
|
715 long starttime = 0;
|
|
|
716
|
|
|
717 if (msec != 0)
|
|
|
718 starttime = biostime(0, 0L);
|
|
|
719
|
|
|
720 for (;;)
|
|
|
721 {
|
|
|
722 #ifdef FEAT_MOUSE
|
|
|
723 long clicktime;
|
|
|
724 static int old_status = 0;
|
|
799
|
725 union REGS regs;
|
|
|
726 int x, y;
|
|
7
|
727
|
|
|
728 if (mouse_avail && mouse_active && mouse_click < 0)
|
|
|
729 {
|
|
|
730 regs.x.ax = 3;
|
|
|
731 int86(0x33, ®s, ®s); /* check mouse status */
|
|
|
732 /* only recognize button-down and button-up event */
|
|
|
733 x = regs.x.cx / mouse_x_div;
|
|
|
734 y = regs.x.dx / mouse_y_div;
|
|
|
735 if ((old_status == 0) != (regs.x.bx == 0))
|
|
|
736 {
|
|
|
737 if (old_status) /* button up */
|
|
|
738 mouse_click = MOUSE_RELEASE;
|
|
|
739 else /* button down */
|
|
|
740 {
|
|
|
741 /*
|
|
|
742 * Translate MSDOS mouse events to Vim mouse events.
|
|
|
743 * TODO: should handle middle mouse button, by pressing
|
|
|
744 * left and right at the same time.
|
|
|
745 */
|
|
|
746 if (regs.x.bx & MSDOS_MOUSE_LEFT)
|
|
|
747 mouse_click = MOUSE_LEFT;
|
|
|
748 else if (regs.x.bx & MSDOS_MOUSE_RIGHT)
|
|
|
749 mouse_click = MOUSE_RIGHT;
|
|
|
750 else if (regs.x.bx & MSDOS_MOUSE_MIDDLE)
|
|
|
751 mouse_click = MOUSE_MIDDLE;
|
|
|
752
|
|
|
753 /*
|
|
|
754 * Find out if this is a multi-click
|
|
|
755 */
|
|
|
756 clicktime = biostime(0, 0L);
|
|
|
757 if (mouse_click_x == x && mouse_click_y == y
|
|
|
758 && mouse_topline == curwin->w_topline
|
|
|
759 #ifdef FEAT_DIFF
|
|
|
760 && mouse_topfill == curwin->w_topfill
|
|
|
761 #endif
|
|
|
762 && mouse_click_count != 4
|
|
|
763 && mouse_click == mouse_last_click
|
|
|
764 && clicktime < mouse_click_time
|
|
|
765 + p_mouset / BIOSTICK)
|
|
|
766 ++mouse_click_count;
|
|
|
767 else
|
|
|
768 mouse_click_count = 1;
|
|
|
769 mouse_click_time = clicktime;
|
|
|
770 mouse_last_click = mouse_click;
|
|
|
771 mouse_click_x = x;
|
|
|
772 mouse_click_y = y;
|
|
|
773 mouse_topline = curwin->w_topline;
|
|
|
774 #ifdef FEAT_DIFF
|
|
|
775 mouse_topfill = curwin->w_topfill;
|
|
|
776 #endif
|
|
|
777 SET_NUM_MOUSE_CLICKS(mouse_click, mouse_click_count);
|
|
|
778 }
|
|
|
779 }
|
|
|
780 else if (old_status && (x != mouse_x || y != mouse_y))
|
|
|
781 mouse_click = MOUSE_DRAG;
|
|
|
782 old_status = regs.x.bx;
|
|
|
783 if (mouse_hidden && mouse_x >= 0 && (mouse_x != x || mouse_y != y))
|
|
|
784 {
|
|
|
785 mouse_hidden = FALSE;
|
|
|
786 show_mouse(TRUE);
|
|
|
787 }
|
|
|
788 mouse_x = x;
|
|
|
789 mouse_y = y;
|
|
|
790 }
|
|
|
791 #endif
|
|
|
792
|
|
|
793 if ((p_consk ? cons_kbhit()
|
|
|
794 : p_biosk ? bioskey(bioskey_ready) : kbhit())
|
|
|
795 || cbrk_pressed
|
|
|
796 #ifdef FEAT_MOUSE
|
|
|
797 || mouse_click >= 0
|
|
|
798 #endif
|
|
|
799 )
|
|
|
800 return TRUE;
|
|
|
801 /*
|
|
|
802 * Use biostime() to wait until our time is done.
|
|
|
803 * We busy-wait here. Unfortunately, delay() and usleep() have been
|
|
|
804 * reported to give problems with the original Windows 95. This is
|
|
|
805 * fixed in service pack 1, but not everybody installed that.
|
|
|
806 * The DJGPP implementation of usleep() uses a busy-wait loop too.
|
|
|
807 */
|
|
|
808 if (msec == 0 || (msec != FOREVER
|
|
|
809 && biostime(0, 0L) > starttime + msec / BIOSTICK))
|
|
|
810 break;
|
|
|
811
|
|
|
812 #ifdef DJGPP
|
|
|
813 /* Yield the CPU to the next process. */
|
|
|
814 __dpmi_yield();
|
|
|
815 #endif
|
|
|
816 }
|
|
|
817 return FALSE;
|
|
|
818 }
|
|
|
819
|
|
|
820 /*
|
|
|
821 * don't do anything for about "msec" msec
|
|
|
822 */
|
|
|
823 void
|
|
|
824 mch_delay(
|
|
|
825 long msec,
|
|
|
826 int ignoreinput)
|
|
|
827 {
|
|
|
828 long starttime;
|
|
|
829
|
|
|
830 if (ignoreinput)
|
|
|
831 {
|
|
|
832 /*
|
|
|
833 * We busy-wait here. Unfortunately, delay() and usleep() have been
|
|
|
834 * reported to give problems with the original Windows 95. This is
|
|
|
835 * fixed in service pack 1, but not everybody installed that.
|
|
|
836 */
|
|
|
837 starttime = biostime(0, 0L);
|
|
|
838 while (biostime(0, 0L) < starttime + msec / BIOSTICK)
|
|
|
839 ;
|
|
|
840 }
|
|
|
841 else
|
|
|
842 WaitForChar(msec);
|
|
|
843 }
|
|
|
844
|
|
|
845 /*
|
|
|
846 * mch_write(): write the output buffer to the screen
|
|
|
847 */
|
|
|
848 void
|
|
|
849 mch_write(
|
|
|
850 char_u *s,
|
|
|
851 int len)
|
|
|
852 {
|
|
|
853 char_u *p;
|
|
|
854 int row, col;
|
|
|
855
|
|
|
856 if (term_console && full_screen)
|
|
|
857 while (len--)
|
|
|
858 {
|
|
|
859 /* translate ESC | sequences into bios calls */
|
|
|
860 if (p_wd) /* testing: wait a bit for each char */
|
|
|
861 WaitForChar(p_wd);
|
|
|
862
|
|
|
863 if (s[0] == '\n')
|
|
|
864 #ifdef DJGPP
|
|
|
865 {
|
|
|
866 myflush();
|
|
|
867 S_iCurrentColumn = S_iLeft - 1;
|
|
|
868 }
|
|
|
869 #else
|
|
|
870 myputch('\r');
|
|
|
871 #endif
|
|
|
872 else if (s[0] == ESC && len > 1 && s[1] == '|')
|
|
|
873 {
|
|
|
874 switch (s[2])
|
|
|
875 {
|
|
|
876 #ifdef DJGPP
|
|
|
877 case 'B': ScreenVisualBell();
|
|
|
878 goto got3;
|
|
|
879 #endif
|
|
|
880 case 'J':
|
|
|
881 #ifdef DJGPP
|
|
|
882 myflush();
|
|
|
883 #endif
|
|
|
884 myclrscr();
|
|
|
885 goto got3;
|
|
|
886
|
|
|
887 case 'K':
|
|
|
888 #ifdef DJGPP
|
|
|
889 myflush();
|
|
|
890 #endif
|
|
|
891 myclreol();
|
|
|
892 goto got3;
|
|
|
893
|
|
|
894 case 'L':
|
|
|
895 #ifdef DJGPP
|
|
|
896 myflush();
|
|
|
897 #endif
|
|
|
898 myinsline();
|
|
|
899 goto got3;
|
|
|
900
|
|
|
901 case 'M':
|
|
|
902 #ifdef DJGPP
|
|
|
903 myflush();
|
|
|
904 #endif
|
|
|
905 mydelline();
|
|
|
906 got3: s += 3;
|
|
|
907 len -= 2;
|
|
|
908 continue;
|
|
|
909
|
|
|
910 case '0':
|
|
|
911 case '1':
|
|
|
912 case '2':
|
|
|
913 case '3':
|
|
|
914 case '4':
|
|
|
915 case '5':
|
|
|
916 case '6':
|
|
|
917 case '7':
|
|
|
918 case '8':
|
|
|
919 case '9': p = s + 2;
|
|
|
920 row = mygetdigits(&p); /* no check for length! */
|
|
|
921 if (p > s + len)
|
|
|
922 break;
|
|
|
923 if (*p == ';')
|
|
|
924 {
|
|
|
925 ++p;
|
|
|
926 col = mygetdigits(&p); /* no check for length! */
|
|
|
927 if (p > s + len)
|
|
|
928 break;
|
|
|
929 if (*p == 'H' || *p == 'r' || *p == 'V')
|
|
|
930 {
|
|
|
931 #ifdef DJGPP
|
|
|
932 myflush();
|
|
|
933 #endif
|
|
|
934 if (*p == 'H') /* set cursor position */
|
|
|
935 mygotoxy(col, row);
|
|
|
936 else if (*p == 'V')
|
|
|
937 mywindow(row, S_iTop, col, S_iBottom);
|
|
|
938 else /* set scroll region */
|
|
|
939 mywindow(S_iLeft, row, S_iRight, col);
|
|
|
940 len -= p - s;
|
|
|
941 s = p + 1;
|
|
|
942 continue;
|
|
|
943 }
|
|
|
944 }
|
|
|
945 else if (*p == 'm' || *p == 'f' || *p == 'b')
|
|
|
946 {
|
|
|
947 if (*p == 'm') /* set color */
|
|
|
948 {
|
|
|
949 if (row == 0)
|
|
|
950 mynormvideo();/* reset color */
|
|
|
951 else
|
|
|
952 mytextattr(row);
|
|
|
953 }
|
|
|
954 else if (*p == 'f') /* set foreground color */
|
|
|
955 mytextcolor(row);
|
|
|
956 else /* set background color */
|
|
|
957 mytextbackground(row);
|
|
|
958
|
|
|
959 len -= p - s;
|
|
|
960 s = p + 1;
|
|
|
961 continue;
|
|
|
962 }
|
|
|
963 }
|
|
|
964 }
|
|
|
965 myputch(*s++);
|
|
|
966 }
|
|
|
967 else
|
|
|
968 {
|
|
|
969 write(1, s, (unsigned)len);
|
|
|
970 }
|
|
|
971 }
|
|
|
972
|
|
|
973 /*
|
|
4352
|
974 * mch_inchar(): low level input function.
|
|
7
|
975 * Get a characters from the keyboard.
|
|
|
976 * If time == 0 do not wait for characters.
|
|
|
977 * If time == n wait a short time for characters.
|
|
|
978 * If time == -1 wait forever for characters.
|
|
|
979 *
|
|
|
980 * return the number of characters obtained
|
|
|
981 */
|
|
|
982 int
|
|
|
983 mch_inchar(
|
|
|
984 char_u *buf,
|
|
|
985 int maxlen,
|
|
|
986 long time,
|
|
|
987 int tb_change_cnt)
|
|
|
988 {
|
|
|
989 int len = 0;
|
|
|
990 int c;
|
|
|
991 int tmp_c;
|
|
|
992 static int nextchar = 0; /* may keep character when maxlen == 1 */
|
|
|
993
|
|
|
994 /*
|
|
|
995 * if we got a ctrl-C when we were busy, there will be a "^C" somewhere
|
|
4352
|
996 * on the screen, so we need to redisplay it.
|
|
7
|
997 */
|
|
|
998 if (delayed_redraw)
|
|
|
999 {
|
|
|
1000 delayed_redraw = FALSE;
|
|
|
1001 update_screen(CLEAR);
|
|
|
1002 setcursor();
|
|
|
1003 out_flush();
|
|
|
1004 }
|
|
|
1005
|
|
|
1006 /* return remaining character from last call */
|
|
|
1007 if (nextchar)
|
|
|
1008 {
|
|
|
1009 *buf = nextchar;
|
|
|
1010 nextchar = 0;
|
|
|
1011 return 1;
|
|
|
1012 }
|
|
|
1013
|
|
|
1014 #ifdef FEAT_MOUSE
|
|
|
1015 if (time != 0)
|
|
|
1016 show_mouse(TRUE);
|
|
|
1017 #endif
|
|
|
1018 #ifdef DJGPP
|
|
|
1019 set_sys_cursor();
|
|
|
1020 #endif
|
|
|
1021 if (time >= 0)
|
|
|
1022 {
|
|
|
1023 if (WaitForChar(time) == 0) /* no character available */
|
|
|
1024 {
|
|
|
1025 #ifdef FEAT_MOUSE
|
|
|
1026 show_mouse(FALSE);
|
|
|
1027 #endif
|
|
|
1028 return 0;
|
|
|
1029 }
|
|
|
1030 }
|
|
|
1031 else /* time == -1 */
|
|
|
1032 {
|
|
|
1033 /*
|
|
|
1034 * If there is no character available within 2 seconds (default)
|
|
212
|
1035 * write the autoscript file to disk. Or cause the CursorHold event
|
|
|
1036 * to be triggered.
|
|
7
|
1037 */
|
|
212
|
1038 if (WaitForChar(p_ut) == 0)
|
|
7
|
1039 {
|
|
|
1040 #ifdef FEAT_AUTOCMD
|
|
610
|
1041 if (trigger_cursorhold() && maxlen >= 3)
|
|
7
|
1042 {
|
|
212
|
1043 buf[0] = K_SPECIAL;
|
|
|
1044 buf[1] = KS_EXTRA;
|
|
|
1045 buf[2] = (int)KE_CURSORHOLD;
|
|
|
1046 return 3;
|
|
7
|
1047 }
|
|
|
1048 #endif
|
|
370
|
1049 before_blocking();
|
|
7
|
1050 }
|
|
|
1051 }
|
|
|
1052 WaitForChar(FOREVER); /* wait for key or mouse click */
|
|
|
1053
|
|
|
1054 /*
|
|
|
1055 * Try to read as many characters as there are, until the buffer is full.
|
|
|
1056 */
|
|
|
1057 /*
|
|
|
1058 * we will get at least one key. Get more if they are available
|
|
|
1059 * After a ctrl-break we have to read a 0 (!) from the buffer.
|
|
|
1060 * bioskey(1) will return 0 if no key is available and when a
|
|
|
1061 * ctrl-break was typed. When ctrl-break is hit, this does not always
|
|
|
1062 * implies a key hit.
|
|
|
1063 */
|
|
|
1064 cbrk_pressed = FALSE;
|
|
|
1065 #ifdef FEAT_MOUSE
|
|
|
1066 if (mouse_click >= 0 && maxlen >= 5)
|
|
|
1067 {
|
|
|
1068 len = 5;
|
|
|
1069 *buf++ = ESC + 128;
|
|
|
1070 *buf++ = 'M';
|
|
|
1071 *buf++ = mouse_click;
|
|
|
1072 *buf++ = mouse_x + '!';
|
|
|
1073 *buf++ = mouse_y + '!';
|
|
|
1074 mouse_click = -1;
|
|
|
1075 }
|
|
|
1076 else
|
|
|
1077 #endif
|
|
|
1078 {
|
|
|
1079 #ifdef FEAT_MOUSE
|
|
|
1080 mouse_hidden = TRUE;
|
|
|
1081 #endif
|
|
|
1082 if (p_biosk && !p_consk)
|
|
|
1083 {
|
|
|
1084 while ((len == 0 || bioskey(bioskey_ready)) && len < maxlen)
|
|
|
1085 {
|
|
|
1086 c = translate_altkeys(bioskey(bioskey_read)); /* get the key */
|
|
|
1087 /*
|
|
|
1088 * translate a few things for inchar():
|
|
|
1089 * 0x0000 == CTRL-break -> 3 (CTRL-C)
|
|
|
1090 * 0x0300 == CTRL-@ -> NUL
|
|
|
1091 * 0xnn00 == extended key code -> K_NUL, nn
|
|
|
1092 * 0xnne0 == enhanced keyboard -> K_NUL, nn
|
|
|
1093 * K_NUL -> K_NUL, 3
|
|
|
1094 */
|
|
|
1095 if (c == 0)
|
|
|
1096 c = 3;
|
|
|
1097 else if (c == 0x0300)
|
|
|
1098 c = NUL;
|
|
|
1099 else if ((c & 0xff) == 0
|
|
|
1100 || c == K_NUL
|
|
|
1101 || c == 0x4e2b
|
|
|
1102 || c == 0x4a2d
|
|
|
1103 || c == 0x372a
|
|
|
1104 || ((c & 0xff) == 0xe0 && c != 0xe0))
|
|
|
1105 {
|
|
|
1106 if (c == K_NUL)
|
|
|
1107 c = 3;
|
|
|
1108 else
|
|
|
1109 c >>= 8;
|
|
|
1110 *buf++ = K_NUL;
|
|
|
1111 ++len;
|
|
|
1112 }
|
|
|
1113
|
|
|
1114 if (len < maxlen)
|
|
|
1115 {
|
|
|
1116 *buf++ = c;
|
|
|
1117 len++;
|
|
|
1118 #ifdef FEAT_MBYTE
|
|
|
1119 /* Convert from 'termencoding' to 'encoding'. Only
|
|
|
1120 * translate normal characters, not key codes. */
|
|
|
1121 if (input_conv.vc_type != CONV_NONE
|
|
|
1122 && (len == 1 || buf[-2] != K_NUL))
|
|
|
1123 len += convert_input(buf - 1, 1, maxlen - len + 1) - 1;
|
|
|
1124 #endif
|
|
|
1125 }
|
|
|
1126 else
|
|
|
1127 nextchar = c;
|
|
|
1128 }
|
|
|
1129 }
|
|
|
1130 else
|
|
|
1131 {
|
|
|
1132 while ((len == 0 || (p_consk ? cons_kbhit() : kbhit()))
|
|
|
1133 && len < maxlen)
|
|
|
1134 {
|
|
|
1135 switch (c = (p_consk ? cons_getch() : getch()))
|
|
|
1136 {
|
|
|
1137 case 0:
|
|
|
1138 /* NUL means that there is another character.
|
|
|
1139 * Get it immediately, because kbhit() doesn't always
|
|
|
1140 * return TRUE for the second character.
|
|
|
1141 */
|
|
|
1142 if (p_consk)
|
|
|
1143 c = cons_getch();
|
|
|
1144 else
|
|
|
1145 c = getch();
|
|
|
1146 tmp_c = translate_altkeys(c << 8);
|
|
|
1147 if (tmp_c == (c << 8))
|
|
|
1148 {
|
|
|
1149 *buf++ = K_NUL;
|
|
|
1150 ++len;
|
|
|
1151 }
|
|
|
1152 else
|
|
|
1153 c = tmp_c;
|
|
|
1154 break;
|
|
|
1155 case K_NUL:
|
|
|
1156 *buf++ = K_NUL;
|
|
|
1157 ++len;
|
|
|
1158 c = 3;
|
|
|
1159 break;
|
|
|
1160 case 3:
|
|
|
1161 cbrk_pressed = TRUE;
|
|
|
1162 /*FALLTHROUGH*/
|
|
|
1163 default:
|
|
|
1164 break;
|
|
|
1165 }
|
|
|
1166 if (len < maxlen)
|
|
|
1167 {
|
|
|
1168 *buf++ = c;
|
|
|
1169 ++len;
|
|
|
1170 }
|
|
|
1171 else
|
|
|
1172 nextchar = c;
|
|
|
1173 }
|
|
|
1174 }
|
|
|
1175 }
|
|
|
1176 #ifdef FEAT_MOUSE
|
|
|
1177 show_mouse(FALSE);
|
|
|
1178 #endif
|
|
|
1179
|
|
|
1180 beep_count = 0; /* may beep again now that we got some chars */
|
|
|
1181 return len;
|
|
|
1182 }
|
|
|
1183
|
|
|
1184 /*
|
|
|
1185 * return non-zero if a character is available
|
|
|
1186 */
|
|
|
1187 int
|
|
|
1188 mch_char_avail(void)
|
|
|
1189 {
|
|
|
1190 return WaitForChar(0L);
|
|
|
1191 }
|
|
|
1192
|
|
|
1193 #ifdef DJGPP
|
|
|
1194 # define INT_ARG int
|
|
|
1195 #else
|
|
|
1196 # define INT_ARG
|
|
|
1197 #endif
|
|
|
1198
|
|
|
1199 /*
|
|
|
1200 * function for ctrl-break interrupt
|
|
|
1201 */
|
|
|
1202 static void interrupt
|
|
|
1203 #ifdef DJGPP
|
|
|
1204 catch_cbrk(int a)
|
|
|
1205 #else
|
|
|
1206 catch_cbrk(void)
|
|
|
1207 #endif
|
|
|
1208 {
|
|
|
1209 cbrk_pressed = TRUE;
|
|
|
1210 ctrlc_pressed = TRUE;
|
|
|
1211 }
|
|
|
1212
|
|
|
1213 #ifndef DJGPP
|
|
|
1214 /*
|
|
|
1215 * ctrl-break handler for DOS. Never called when a ctrl-break is typed, because
|
|
|
1216 * we catch interrupt 1b. If you type ctrl-C while Vim is waiting for a
|
|
|
1217 * character this function is not called. When a ctrl-C is typed while Vim is
|
|
|
1218 * busy this function may be called. By that time a ^C has been displayed on
|
|
|
1219 * the screen, so we have to redisplay the screen. We can't do that here,
|
|
|
1220 * because we may be called by DOS. The redraw is in mch_inchar().
|
|
|
1221 */
|
|
|
1222 static int _cdecl
|
|
|
1223 cbrk_handler(void)
|
|
|
1224 {
|
|
|
1225 delayed_redraw = TRUE;
|
|
|
1226 return 1; /* resume operation after ctrl-break */
|
|
|
1227 }
|
|
|
1228
|
|
|
1229 /*
|
|
|
1230 * function for critical error interrupt
|
|
|
1231 * For DOS 1 and 2 return 0 (Ignore).
|
|
|
1232 * For DOS 3 and later return 3 (Fail)
|
|
|
1233 */
|
|
|
1234 static void interrupt
|
|
|
1235 catch_cint(bp, di, si, ds, es, dx, cx, bx, ax)
|
|
|
1236 unsigned bp, di, si, ds, es, dx, cx, bx, ax;
|
|
|
1237 {
|
|
|
1238 ax = (ax & 0xff00); /* set AL to 0 */
|
|
|
1239 if (_osmajor >= 3)
|
|
|
1240 ax |= 3; /* set AL to 3 */
|
|
|
1241 }
|
|
|
1242 #endif
|
|
|
1243
|
|
|
1244 /*
|
|
|
1245 * Set the interrupt vectors for use with Vim on or off.
|
|
|
1246 * on == TRUE means as used within Vim
|
|
|
1247 */
|
|
|
1248 static void
|
|
|
1249 set_interrupts(int on)
|
|
|
1250 {
|
|
|
1251 static int saved_cbrk;
|
|
|
1252 #ifndef DJGPP
|
|
|
1253 static void interrupt (*old_cint)();
|
|
|
1254 #endif
|
|
|
1255 static void interrupt (*old_cbrk)(INT_ARG);
|
|
|
1256
|
|
|
1257 if (on)
|
|
|
1258 {
|
|
|
1259 saved_cbrk = getcbrk(); /* save old ctrl-break setting */
|
|
|
1260 setcbrk(0); /* do not check for ctrl-break */
|
|
|
1261 #ifdef DJGPP
|
|
|
1262 old_cbrk = signal(SIGINT, catch_cbrk); /* critical error interrupt */
|
|
|
1263 #else
|
|
|
1264 old_cint = getvect(0x24); /* save old critical error interrupt */
|
|
|
1265 setvect(0x24, catch_cint); /* install our critical error interrupt */
|
|
|
1266 old_cbrk = getvect(0x1B); /* save old ctrl-break interrupt */
|
|
|
1267 setvect(0x1B, catch_cbrk); /* install our ctrl-break interrupt */
|
|
|
1268 ctrlbrk(cbrk_handler); /* vim's ctrl-break handler */
|
|
|
1269 #endif
|
|
|
1270 if (term_console)
|
|
|
1271 out_str(T_ME); /* set colors */
|
|
|
1272 }
|
|
|
1273 else
|
|
|
1274 {
|
|
|
1275 setcbrk(saved_cbrk); /* restore ctrl-break setting */
|
|
|
1276 #ifdef DJGPP
|
|
|
1277 signal(SIGINT,old_cbrk); /* critical error interrupt */
|
|
|
1278 #else
|
|
|
1279 setvect(0x24, old_cint); /* restore critical error interrupt */
|
|
|
1280 setvect(0x1B, old_cbrk); /* restore ctrl-break interrupt */
|
|
|
1281 #endif
|
|
|
1282 /* restore ctrl-break handler, how ??? */
|
|
|
1283 if (term_console)
|
|
|
1284 mynormvideo(); /* restore screen colors */
|
|
|
1285 }
|
|
|
1286 }
|
|
|
1287
|
|
|
1288 /*
|
|
|
1289 * We have no job control, fake it by starting a new shell.
|
|
|
1290 */
|
|
|
1291 void
|
|
|
1292 mch_suspend(void)
|
|
|
1293 {
|
|
|
1294 suspend_shell();
|
|
|
1295 }
|
|
|
1296
|
|
|
1297 extern int _fmode;
|
|
|
1298
|
|
|
1299 /*
|
|
|
1300 * Prepare window for use by Vim.
|
|
|
1301 */
|
|
|
1302 void
|
|
|
1303 mch_init(void)
|
|
|
1304 {
|
|
|
1305 union REGS regs;
|
|
|
1306
|
|
|
1307 #if defined(DJGPP) && defined(FEAT_CLIPBOARD)
|
|
|
1308 __dpmi_regs dpmi_regs;
|
|
|
1309 #endif
|
|
|
1310
|
|
|
1311 /*
|
|
|
1312 * Get the video attributes at the cursor. These will be used as the
|
|
|
1313 * default attributes.
|
|
|
1314 */
|
|
|
1315 regs.h.ah = 0x08;
|
|
|
1316 regs.h.bh = 0x00; /* video page 0 */
|
|
|
1317 int86(0x10, ®s, ®s);
|
|
|
1318 orig_attr = regs.h.ah;
|
|
|
1319 mynormvideo();
|
|
|
1320 if (cterm_normal_fg_color == 0)
|
|
|
1321 cterm_normal_fg_color = (orig_attr & 0xf) + 1;
|
|
|
1322 if (cterm_normal_bg_color == 0)
|
|
|
1323 cterm_normal_bg_color = ((orig_attr >> 4) & 0xf) + 1;
|
|
|
1324
|
|
|
1325 term_console = TRUE; /* assume using the console for the things here */
|
|
|
1326 _fmode = O_BINARY; /* we do our own CR-LF translation */
|
|
|
1327 out_flush();
|
|
|
1328 set_interrupts(TRUE); /* catch interrupts */
|
|
|
1329
|
|
|
1330 #ifdef DJGPP
|
|
|
1331 /*
|
|
|
1332 * Use Long File Names by default, if $LFN not set.
|
|
|
1333 */
|
|
|
1334 if (getenv("LFN") == NULL)
|
|
|
1335 putenv("LFN=y");
|
|
|
1336
|
|
|
1337 get_screenbase();
|
|
|
1338 #endif
|
|
|
1339
|
|
|
1340 #ifdef FEAT_MOUSE
|
|
|
1341 /* find out if a MS compatible mouse is available */
|
|
|
1342 regs.x.ax = 0;
|
|
|
1343 (void)int86(0x33, ®s, ®s);
|
|
|
1344 mouse_avail = regs.x.ax;
|
|
|
1345 /* best guess for mouse coordinate computations */
|
|
|
1346 mch_get_shellsize();
|
|
|
1347 if (Columns <= 40)
|
|
|
1348 mouse_x_div = 16;
|
|
|
1349 if (Rows == 30)
|
|
|
1350 mouse_y_div = 16;
|
|
|
1351 #endif
|
|
|
1352
|
|
|
1353 /*
|
|
|
1354 * Try switching to 16 colors for background, instead of 8 colors and
|
|
|
1355 * blinking. Does this always work? Can the old value be restored?
|
|
|
1356 */
|
|
|
1357 regs.x.ax = 0x1003;
|
|
|
1358 regs.h.bl = 0x00;
|
|
|
1359 regs.h.bh = 0x00;
|
|
|
1360 int86(0x10, ®s, ®s);
|
|
|
1361
|
|
|
1362 /*
|
|
|
1363 * Test if we have an enhanced AT keyboard. Write 0xFFFF to the keyboard
|
|
|
1364 * buffer and try to read it back. If we can't in 16 tries, it's an old
|
|
|
1365 * type XT keyboard.
|
|
|
1366 */
|
|
|
1367 regs.h.ah = 0x05;
|
|
|
1368 regs.x.cx = 0xffff;
|
|
|
1369 int86(0x16, ®s, ®s);
|
|
|
1370 if (regs.h.al != 1) /* skip this when keyboard buffer is full */
|
|
|
1371 {
|
|
|
1372 int i;
|
|
|
1373
|
|
|
1374 for (i = 0; i < 16; ++i)
|
|
|
1375 {
|
|
|
1376 regs.h.ah = 0x10;
|
|
|
1377 int86(0x16, ®s, ®s);
|
|
|
1378 if (regs.x.ax == 0xffff)
|
|
|
1379 break;
|
|
|
1380 }
|
|
|
1381 if (i == 16) /* 0xffff not read, must be old keyboard */
|
|
|
1382 {
|
|
|
1383 bioskey_read = 0;
|
|
|
1384 bioskey_ready = 1;
|
|
|
1385 }
|
|
|
1386 }
|
|
|
1387
|
|
|
1388 #ifdef MCH_CURSOR_SHAPE
|
|
|
1389 /* Save the old cursor shape */
|
|
|
1390 mch_restore_cursor_shape(FALSE);
|
|
|
1391 /* Initialise the cursor shape */
|
|
|
1392 mch_update_cursor();
|
|
|
1393 #endif
|
|
|
1394
|
|
|
1395 #if defined(DJGPP) && defined(FEAT_CLIPBOARD)
|
|
|
1396 /*
|
|
|
1397 * Check to see if the Windows clipboard is available, ie. are we
|
|
|
1398 * running from a DOS session within Windows. Obviously, the Windows
|
|
|
1399 * clipboard will not be available if we're running under pure DOS.
|
|
|
1400 *
|
|
|
1401 * int 0x2f, AX = 0x1700 identifies the Windows version we're running
|
|
|
1402 * under. Upon return from the interrupt, if AX is unchanged, we're
|
|
|
1403 * running under pure DOS and no Windows clipboard is available.
|
|
|
1404 *
|
|
|
1405 * Remark: could use int86() here but __dpmi_int() is recommended in
|
|
|
1406 * the DJGPP docs, since int86() doesn't cover all available interrupts.
|
|
|
1407 */
|
|
|
1408 dpmi_regs.x.ax = 0x1700;
|
|
|
1409 if (__dpmi_int(0x2f, &dpmi_regs) == -1)
|
|
|
1410 /* real-mode interrupt failed? */
|
|
|
1411 dpmi_regs.x.ax = 0x1700; /* force failure */
|
|
|
1412
|
|
|
1413 if (dpmi_regs.x.ax == 0x1700) /* no change in AX? */
|
|
|
1414 clip_init(FALSE); /* no clipboard available, too bad */
|
|
|
1415 else /* else, running under Windows, OK */
|
|
|
1416 clip_init(TRUE); /* clipboard is available */
|
|
|
1417 #endif
|
|
|
1418 }
|
|
|
1419
|
|
|
1420 int
|
|
|
1421 mch_check_win(
|
|
|
1422 int argc,
|
|
|
1423 char **argv)
|
|
|
1424 {
|
|
|
1425 /* store argv[0], may be used for $VIM */
|
|
|
1426 if (*argv[0] != NUL)
|
|
|
1427 exe_name = FullName_save((char_u *)argv[0], FALSE);
|
|
|
1428
|
|
|
1429 /*
|
|
|
1430 * Try the DOS search path. The executable may in
|
|
|
1431 * fact be called differently, so try this last.
|
|
|
1432 */
|
|
|
1433 if (exe_name == NULL || *exe_name == NUL)
|
|
|
1434 exe_name = searchpath("vim.exe");
|
|
|
1435
|
|
|
1436 if (isatty(1))
|
|
|
1437 return OK;
|
|
|
1438 return FAIL;
|
|
|
1439 }
|
|
|
1440
|
|
|
1441 /*
|
|
|
1442 * Return TRUE if the input comes from a terminal, FALSE otherwise.
|
|
|
1443 */
|
|
|
1444 int
|
|
|
1445 mch_input_isatty(void)
|
|
|
1446 {
|
|
|
1447 if (isatty(read_cmd_fd))
|
|
|
1448 return TRUE;
|
|
|
1449 return FALSE;
|
|
|
1450 }
|
|
|
1451
|
|
|
1452 #if defined(USE_FNAME_CASE) || defined(PROTO)
|
|
|
1453 /*
|
|
|
1454 * fname_case(): Set the case of the file name, if it already exists.
|
|
|
1455 * TODO: should expand short to long file names. Need to use DOS interrupts,
|
|
|
1456 * see DJGPP sources libc/dos/dir/findfirs.c.
|
|
|
1457 */
|
|
|
1458 void
|
|
|
1459 fname_case(char_u *name, int len)
|
|
|
1460 {
|
|
|
1461 char_u *tail;
|
|
|
1462 struct ffblk fb;
|
|
|
1463
|
|
|
1464 slash_adjust(name);
|
|
|
1465 if (findfirst(name, &fb, 0) == 0)
|
|
|
1466 {
|
|
|
1467 tail = gettail(name);
|
|
|
1468 if (len == 0 ? STRLEN(tail) == STRLEN(fb.ff_name)
|
|
|
1469 : (tail - name) + STRLEN(fb.ff_name) < len)
|
|
|
1470 STRCPY(tail, fb.ff_name);
|
|
|
1471 }
|
|
|
1472 }
|
|
|
1473 #endif
|
|
|
1474
|
|
|
1475 /*
|
|
|
1476 * return process ID
|
|
|
1477 */
|
|
|
1478 long
|
|
|
1479 mch_get_pid(void)
|
|
|
1480 {
|
|
|
1481 return (long)0;
|
|
|
1482 }
|
|
|
1483
|
|
|
1484 /*
|
|
|
1485 * Change default drive (just like _chdrive of Borland C 3.1)
|
|
|
1486 */
|
|
|
1487 static int
|
|
|
1488 change_drive(int drive)
|
|
|
1489 {
|
|
|
1490 union REGS regs;
|
|
|
1491
|
|
|
1492 regs.h.ah = 0x0e;
|
|
|
1493 regs.h.dl = drive - 1;
|
|
|
1494 intdos(®s, ®s); /* set default drive */
|
|
|
1495 regs.h.ah = 0x19;
|
|
|
1496 intdos(®s, ®s); /* get default drive */
|
|
|
1497 if (regs.h.al == drive - 1)
|
|
|
1498 return 0;
|
|
|
1499 return -1;
|
|
|
1500 }
|
|
|
1501
|
|
|
1502 /*
|
|
|
1503 * Get absolute file name into buffer 'buf' of length 'len' bytes.
|
|
|
1504 * All slashes are replaced with backslashes, to avoid trouble when comparing
|
|
|
1505 * file names. When 'shellslash' set do it the other way around.
|
|
|
1506 *
|
|
|
1507 * return FAIL for failure, OK otherwise
|
|
|
1508 */
|
|
|
1509 int
|
|
|
1510 mch_FullName(
|
|
|
1511 char_u *fname,
|
|
|
1512 char_u *buf,
|
|
|
1513 int len,
|
|
|
1514 int force)
|
|
|
1515 {
|
|
|
1516 if (!force && mch_isFullName(fname)) /* already expanded */
|
|
|
1517 {
|
|
418
|
1518 vim_strncpy(buf, fname, len - 1);
|
|
7
|
1519 slash_adjust(buf);
|
|
|
1520 return OK;
|
|
|
1521 }
|
|
|
1522
|
|
|
1523 #ifdef __BORLANDC__ /* Only Borland C++ has this */
|
|
|
1524 if (_fullpath((char *)buf, (char *)fname, len - 1) == NULL)
|
|
|
1525 return FAIL;
|
|
|
1526 return OK;
|
|
|
1527 #else /* almost the same as mch_FullName() in os_unix.c */
|
|
|
1528 {
|
|
|
1529 # if 1
|
|
|
1530 char_u fullpath[MAXPATHL];
|
|
|
1531
|
|
|
1532 if (!_truename(fname, fullpath))
|
|
|
1533 return FAIL;
|
|
|
1534 slash_adjust(fullpath); /* Only needed when 'shellslash' set */
|
|
418
|
1535 vim_strncpy(buf, fullpath, len - 1);
|
|
7
|
1536 return OK;
|
|
|
1537
|
|
|
1538 # else /* Old code, to be deleted... */
|
|
|
1539 int l;
|
|
|
1540 char_u olddir[MAXPATHL];
|
|
|
1541 char_u *p, *q;
|
|
|
1542 int c;
|
|
|
1543 int retval = OK;
|
|
|
1544
|
|
|
1545 *buf = 0;
|
|
|
1546 /*
|
|
|
1547 * change to the directory for a moment,
|
|
|
1548 * and then do the getwd() (and get back to where we were).
|
|
|
1549 * This will get the correct path name with "../" things.
|
|
|
1550 */
|
|
|
1551 p = vim_strrchr(fname, '/');
|
|
|
1552 q = vim_strrchr(fname, '\\');
|
|
|
1553 if (q != NULL && (p == NULL || q > p))
|
|
|
1554 p = q;
|
|
|
1555 q = vim_strrchr(fname, ':');
|
|
|
1556 if (q != NULL && (p == NULL || q > p))
|
|
|
1557 p = q;
|
|
|
1558 if (p != NULL)
|
|
|
1559 {
|
|
|
1560 if (getcwd(olddir, MAXPATHL) == NULL)
|
|
|
1561 {
|
|
|
1562 p = NULL; /* can't get current dir: don't chdir */
|
|
|
1563 retval = FAIL;
|
|
|
1564 }
|
|
|
1565 else
|
|
|
1566 {
|
|
|
1567 if (p == fname) /* /fname */
|
|
|
1568 q = p + 1; /* -> / */
|
|
|
1569 else if (q + 1 == p) /* ... c:\foo */
|
|
|
1570 q = p + 1; /* -> c:\ */
|
|
|
1571 else /* but c:\foo\bar */
|
|
|
1572 q = p; /* -> c:\foo */
|
|
|
1573
|
|
|
1574 c = *q; /* truncate at start of fname */
|
|
|
1575 *q = NUL;
|
|
|
1576 # ifdef DJGPP
|
|
|
1577 STRCPY(buf, fname);
|
|
|
1578 slash_adjust(buf); /* needed when fname starts with \ */
|
|
|
1579 if (mch_chdir(buf)) /* change to the directory */
|
|
|
1580 # else
|
|
|
1581 if (mch_chdir(fname)) /* change to the directory */
|
|
|
1582 # endif
|
|
|
1583 retval = FAIL;
|
|
|
1584 else
|
|
|
1585 {
|
|
|
1586 fname = q;
|
|
|
1587 if (c == psepc) /* if we cut the name at a */
|
|
|
1588 fname++; /* '\', don't add it again */
|
|
|
1589 }
|
|
|
1590 *q = c;
|
|
|
1591 }
|
|
|
1592 }
|
|
|
1593 if (getcwd(buf, len) == NULL)
|
|
|
1594 {
|
|
|
1595 retval = FAIL;
|
|
|
1596 *buf = NUL;
|
|
|
1597 }
|
|
|
1598 # ifdef USE_FNAME_CASE
|
|
|
1599 else
|
|
|
1600 {
|
|
|
1601 char_u *head;
|
|
|
1602 char_u *tail;
|
|
|
1603 struct ffblk fb;
|
|
|
1604 int c;
|
|
|
1605 int added;
|
|
|
1606
|
|
|
1607 /* Apparently "longna~1" isn't expanded by getcwd(), at least not
|
|
|
1608 * for DJGPP. Expand it here. Have to do each dirname
|
|
|
1609 * separately. */
|
|
|
1610 slash_adjust(buf);
|
|
|
1611 head = buf;
|
|
|
1612 if (isalpha(*head) && head[1] == ':')
|
|
|
1613 head += 2; /* skip "c:" */
|
|
|
1614 while (*head != NUL)
|
|
|
1615 {
|
|
|
1616 /* Advance "head" to the start of a dirname and "tail" to just
|
|
|
1617 * after it. */
|
|
|
1618 while (*head == '/' || *head == '\\')
|
|
|
1619 ++head;
|
|
|
1620 for (tail = head; *tail != NUL; ++tail)
|
|
|
1621 if (*tail == '/' || *tail == '\\')
|
|
|
1622 break;
|
|
|
1623 c = *tail;
|
|
|
1624 *tail = NUL;
|
|
|
1625
|
|
|
1626 if (findfirst(buf, &fb, FA_DIREC) == 0)
|
|
|
1627 {
|
|
|
1628 added = STRLEN(fb.ff_name);
|
|
|
1629 if ((head - buf) + added + STRLEN(tail + 1) + 2 < len)
|
|
|
1630 {
|
|
|
1631 added -= (tail - head);
|
|
|
1632 if (added != 0)
|
|
1621
|
1633 STRMOVE(tail + 1 + added, tail + 1);
|
|
7
|
1634 STRCPY(head, fb.ff_name);
|
|
|
1635 tail += added;
|
|
|
1636 }
|
|
|
1637 }
|
|
|
1638 *tail = c;
|
|
|
1639 head = tail;
|
|
|
1640 }
|
|
|
1641 }
|
|
|
1642 # endif
|
|
|
1643 if (p != NULL)
|
|
|
1644 mch_chdir(olddir);
|
|
|
1645 /*
|
|
|
1646 * Concatenate the file name to the path.
|
|
|
1647 */
|
|
|
1648 if (*fname != NUL)
|
|
|
1649 {
|
|
|
1650 l = STRLEN(buf);
|
|
|
1651 if (l > 0 && buf[l - 1] != '/' && buf[l - 1] != '\\')
|
|
|
1652 strcat(buf, pseps);
|
|
|
1653 strcat(buf, fname);
|
|
|
1654 }
|
|
|
1655 return retval;
|
|
|
1656 # endif
|
|
|
1657 }
|
|
|
1658 #endif
|
|
|
1659 }
|
|
|
1660
|
|
|
1661 /*
|
|
|
1662 * Replace all slashes by backslashes.
|
|
|
1663 * This used to be the other way around, but MS-DOS sometimes has problems
|
|
|
1664 * with slashes (e.g. in a command name). We can't have mixed slashes and
|
|
|
1665 * backslashes, because comparing file names will not work correctly. The
|
|
|
1666 * commands that use a file name should try to avoid the need to type a
|
|
|
1667 * backslash twice.
|
|
|
1668 * When 'shellslash' set do it the other way around.
|
|
|
1669 */
|
|
|
1670 void
|
|
|
1671 slash_adjust(char_u *p)
|
|
|
1672 {
|
|
|
1673 #ifdef OLD_DJGPP /* this seems to have been fixed in DJGPP 2.01 */
|
|
|
1674 /* DJGPP can't handle a file name that starts with a backslash, and when it
|
|
|
1675 * starts with a slash there should be no backslashes */
|
|
|
1676 if (*p == '\\' || *p == '/')
|
|
|
1677 while (*p)
|
|
|
1678 {
|
|
|
1679 if (*p == '\\')
|
|
|
1680 *p = '/';
|
|
39
|
1681 mb_ptr_adv(p);
|
|
7
|
1682 }
|
|
|
1683 else
|
|
|
1684 #endif
|
|
|
1685 while (*p)
|
|
|
1686 {
|
|
|
1687 if (*p == psepcN)
|
|
|
1688 *p = psepc;
|
|
39
|
1689 mb_ptr_adv(p);
|
|
7
|
1690 }
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 /*
|
|
|
1694 * Return TRUE if "fname" does not depend on the current directory.
|
|
|
1695 */
|
|
|
1696 int
|
|
|
1697 mch_isFullName(char_u *fname)
|
|
|
1698 {
|
|
|
1699 /* A name like "d:/foo" and "//server/share" is absolute */
|
|
|
1700 return (fname[0] != NUL && fname[1] == ':'
|
|
|
1701 && (fname[2] == '/' || fname[2] == '\\'))
|
|
|
1702 || (fname[0] == fname[1] && (fname[0] == '/' || fname[0] == '\\'));
|
|
|
1703 }
|
|
|
1704
|
|
|
1705
|
|
|
1706 void
|
|
|
1707 mch_early_init(void)
|
|
|
1708 {
|
|
|
1709 }
|
|
|
1710
|
|
|
1711 /*
|
|
|
1712 * Careful: mch_exit() may be called before mch_init()!
|
|
|
1713 */
|
|
|
1714 void
|
|
|
1715 mch_exit(int r)
|
|
|
1716 {
|
|
|
1717 settmode(TMODE_COOK);
|
|
|
1718 stoptermcap();
|
|
|
1719 set_interrupts(FALSE); /* restore interrupts */
|
|
|
1720 #ifdef DJGPP
|
|
|
1721 set_sys_cursor();
|
|
|
1722 #endif
|
|
|
1723 /* Somehow outputting CR-NL causes the original colors to be restored */
|
|
|
1724 out_char('\r');
|
|
|
1725 out_char('\n');
|
|
|
1726 out_flush();
|
|
|
1727 ml_close_all(TRUE); /* remove all memfiles */
|
|
|
1728 #ifdef MCH_CURSOR_SHAPE
|
|
|
1729 mch_restore_cursor_shape(TRUE);
|
|
|
1730 #endif
|
|
|
1731 exit(r);
|
|
|
1732 }
|
|
|
1733
|
|
|
1734 /*
|
|
|
1735 * set the tty in (raw) ? "raw" : "cooked" mode
|
|
|
1736 * Does not change the tty, as bioskey() and kbhit() work raw all the time.
|
|
|
1737 */
|
|
|
1738 void
|
|
|
1739 mch_settmode(int tmode)
|
|
|
1740 {
|
|
|
1741 }
|
|
|
1742
|
|
|
1743 #ifdef FEAT_MOUSE
|
|
|
1744 void
|
|
|
1745 mch_setmouse(int on)
|
|
|
1746 {
|
|
|
1747 mouse_active = on;
|
|
4352
|
1748 mouse_hidden = TRUE; /* don't show it until moved */
|
|
7
|
1749 }
|
|
|
1750 #endif
|
|
|
1751
|
|
|
1752 /*
|
|
|
1753 * set screen mode
|
|
|
1754 * return FAIL for failure, OK otherwise
|
|
|
1755 */
|
|
|
1756 int
|
|
|
1757 mch_screenmode(char_u *arg)
|
|
|
1758 {
|
|
|
1759 int mode;
|
|
|
1760 int i;
|
|
|
1761 static char *(names[]) = {"BW40", "C40", "BW80", "C80", "MONO", "C4350"};
|
|
|
1762 static int modes[] = { BW40, C40, BW80, C80, MONO, C4350};
|
|
|
1763
|
|
|
1764 mode = -1;
|
|
|
1765 if (VIM_ISDIGIT(*arg)) /* mode number given */
|
|
|
1766 mode = atoi((char *)arg);
|
|
|
1767 else
|
|
|
1768 {
|
|
|
1769 for (i = 0; i < sizeof(names) / sizeof(char_u *); ++i)
|
|
|
1770 if (stricmp(names[i], (char *)arg) == 0)
|
|
|
1771 {
|
|
|
1772 mode = modes[i];
|
|
|
1773 break;
|
|
|
1774 }
|
|
|
1775 }
|
|
|
1776 if (mode == -1)
|
|
|
1777 {
|
|
|
1778 EMSG("E362: Unsupported screen mode");
|
|
|
1779 return FAIL;
|
|
|
1780 }
|
|
|
1781 textmode(mode); /* use Borland function */
|
|
|
1782 #ifdef DJGPP
|
|
|
1783 /* base address may have changed */
|
|
|
1784 get_screenbase();
|
|
|
1785 #endif
|
|
|
1786
|
|
|
1787 /* Screen colors may have changed. */
|
|
|
1788 out_str(T_ME);
|
|
|
1789
|
|
|
1790 #ifdef FEAT_MOUSE
|
|
|
1791 if (mode <= 1 || mode == 4 || mode == 5 || mode == 13 || mode == 0x13)
|
|
|
1792 mouse_x_div = 16;
|
|
|
1793 else
|
|
|
1794 mouse_x_div = 8;
|
|
|
1795 if (mode == 0x11 || mode == 0x12)
|
|
|
1796 mouse_y_div = 16;
|
|
|
1797 else if (mode == 0x10)
|
|
|
1798 mouse_y_div = 14;
|
|
|
1799 else
|
|
|
1800 mouse_y_div = 8;
|
|
|
1801 shell_resized();
|
|
|
1802 #endif
|
|
|
1803 return OK;
|
|
|
1804 }
|
|
|
1805
|
|
|
1806 /*
|
|
|
1807 * Structure used by Turbo-C/Borland-C to store video parameters.
|
|
|
1808 */
|
|
|
1809 #ifndef DJGPP
|
|
|
1810 extern struct text_info _video;
|
|
|
1811 #endif
|
|
|
1812
|
|
|
1813 /*
|
|
|
1814 * try to get the real window size
|
|
|
1815 * return FAIL for failure, OK otherwise
|
|
|
1816 */
|
|
|
1817 int
|
|
|
1818 mch_get_shellsize(void)
|
|
|
1819 {
|
|
|
1820 struct text_info textinfo;
|
|
|
1821
|
|
|
1822 /*
|
|
|
1823 * The screenwidth is returned by the BIOS OK.
|
|
|
1824 * The screenheight is in a location in the bios RAM, if the display is
|
|
|
1825 * EGA or VGA.
|
|
|
1826 */
|
|
|
1827 if (!term_console)
|
|
|
1828 return FAIL;
|
|
|
1829 gettextinfo(&textinfo);
|
|
|
1830 Columns = textinfo.screenwidth;
|
|
|
1831 Rows = textinfo.screenheight;
|
|
|
1832 #ifndef DJGPP
|
|
|
1833 if (textinfo.currmode > 10)
|
|
|
1834 Rows = *(char far *)MK_FP(0x40, 0x84) + 1;
|
|
|
1835 #endif
|
|
|
1836
|
|
|
1837 if (Columns < MIN_COLUMNS || Rows < MIN_LINES)
|
|
|
1838 {
|
|
|
1839 /* these values are overwritten by termcap size or default */
|
|
|
1840 Columns = 80;
|
|
|
1841 Rows = 25;
|
|
|
1842 return FAIL;
|
|
|
1843 }
|
|
|
1844 #ifdef DJGPP
|
|
|
1845 mytextinit(&textinfo); /* Added by JML, 1/15/98 */
|
|
|
1846 #endif
|
|
|
1847
|
|
|
1848 return OK;
|
|
|
1849 }
|
|
|
1850
|
|
|
1851 /*
|
|
|
1852 * Set the active window for delline/insline.
|
|
|
1853 */
|
|
|
1854 static void
|
|
|
1855 set_window(void)
|
|
|
1856 {
|
|
|
1857 if (term_console)
|
|
|
1858 {
|
|
|
1859 #ifndef DJGPP
|
|
|
1860 _video.screenheight = Rows;
|
|
|
1861 #endif
|
|
|
1862 mywindow(1, 1, Columns, Rows);
|
|
|
1863 }
|
|
|
1864 screen_start();
|
|
|
1865 }
|
|
|
1866
|
|
|
1867 void
|
|
|
1868 mch_set_shellsize(void)
|
|
|
1869 {
|
|
|
1870 /* Should try to set the window size to Rows and Columns.
|
|
|
1871 * May involve switching display mode....
|
|
|
1872 * We assume the user knows the size and just use it. */
|
|
|
1873 }
|
|
|
1874
|
|
|
1875 /*
|
|
|
1876 * Rows and/or Columns has changed.
|
|
|
1877 */
|
|
|
1878 void
|
|
|
1879 mch_new_shellsize()
|
|
|
1880 {
|
|
|
1881 #ifdef FEAT_MOUSE
|
|
|
1882 /* best guess for mouse coordinate computations */
|
|
|
1883 if (Columns <= 40)
|
|
|
1884 mouse_x_div = 16;
|
|
|
1885 if (Rows == 30)
|
|
|
1886 mouse_y_div = 16;
|
|
|
1887 #endif
|
|
|
1888 set_window();
|
|
|
1889 #ifdef FEAT_MOUSE
|
|
|
1890 mouse_area(); /* set area where mouse can go */
|
|
|
1891 #endif
|
|
|
1892 }
|
|
|
1893
|
|
|
1894 #if defined(DJGPP) || defined(PROTO)
|
|
|
1895 /*
|
|
|
1896 * Check the number of Columns with a BIOS call. This avoids a crash of the
|
|
|
1897 * DOS console when 'columns' is set to a too large value.
|
|
|
1898 */
|
|
|
1899 void
|
|
|
1900 mch_check_columns()
|
|
|
1901 {
|
|
|
1902 static union REGS regs;
|
|
|
1903
|
|
|
1904 regs.h.ah = 0x0f;
|
|
|
1905 (void)int86(0x10, ®s, ®s);
|
|
|
1906 if ((unsigned)Columns > (unsigned)regs.h.ah)
|
|
|
1907 Columns = (unsigned)regs.h.ah;
|
|
|
1908 }
|
|
|
1909 #endif
|
|
|
1910
|
|
|
1911 /*
|
|
|
1912 * call shell, return FAIL for failure, OK otherwise
|
|
|
1913 * options: SHELL_*, see vim.h.
|
|
|
1914 */
|
|
|
1915 int
|
|
|
1916 mch_call_shell(
|
|
|
1917 char_u *cmd,
|
|
|
1918 int options)
|
|
|
1919 {
|
|
|
1920 int x;
|
|
|
1921 int tmode = cur_tmode;
|
|
|
1922 #ifndef DJGPP
|
|
|
1923 char_u *newcmd;
|
|
|
1924 #endif
|
|
|
1925
|
|
|
1926 out_flush();
|
|
|
1927 #ifdef DJGPP
|
|
|
1928 set_sys_cursor();
|
|
|
1929 #endif
|
|
|
1930
|
|
|
1931 if (options & SHELL_COOKED)
|
|
|
1932 settmode(TMODE_COOK); /* set to normal mode */
|
|
|
1933 set_interrupts(FALSE); /* restore interrupts */
|
|
|
1934
|
|
|
1935 #ifdef DJGPP
|
|
|
1936 /* ignore signals while external command is running */
|
|
|
1937 signal(SIGINT, SIG_IGN);
|
|
|
1938 signal(SIGHUP, SIG_IGN);
|
|
|
1939 signal(SIGQUIT, SIG_IGN);
|
|
|
1940 signal(SIGTERM, SIG_IGN);
|
|
|
1941 #endif
|
|
|
1942 if (cmd == NULL)
|
|
|
1943 x = system((char *)p_sh);
|
|
|
1944 else
|
|
|
1945 {
|
|
|
1946 #ifdef DJGPP
|
|
|
1947 /*
|
|
|
1948 * Use 'shell' for system().
|
|
|
1949 */
|
|
|
1950 setenv("SHELL", (char *)p_sh, 1);
|
|
|
1951 x = system(cmd);
|
|
|
1952 #else
|
|
|
1953 /* we use "command" to start the shell, slow but easy */
|
|
|
1954 newcmd = alloc(STRLEN(p_sh) + STRLEN(p_shcf) + STRLEN(cmd) + 3);
|
|
|
1955 if (newcmd == NULL)
|
|
|
1956 x = -1;
|
|
|
1957 else
|
|
|
1958 {
|
|
|
1959 sprintf((char *)newcmd, "%s %s %s", p_sh, p_shcf, cmd);
|
|
|
1960 x = system((char *)newcmd);
|
|
|
1961 vim_free(newcmd);
|
|
|
1962 }
|
|
|
1963 #endif
|
|
|
1964 }
|
|
|
1965 #ifdef DJGPP
|
|
|
1966 signal(SIGINT, SIG_DFL);
|
|
|
1967 signal(SIGHUP, SIG_DFL);
|
|
|
1968 signal(SIGQUIT, SIG_DFL);
|
|
|
1969 signal(SIGTERM, SIG_DFL);
|
|
|
1970 #endif
|
|
|
1971 if (tmode == TMODE_RAW)
|
|
|
1972 settmode(TMODE_RAW); /* set to raw mode */
|
|
|
1973 set_interrupts(TRUE); /* catch interrupts */
|
|
|
1974
|
|
|
1975 if (x && !(options & SHELL_SILENT) && !emsg_silent)
|
|
|
1976 {
|
|
|
1977 MSG_PUTS("\nshell returned ");
|
|
|
1978 msg_outnum((long)x);
|
|
|
1979 msg_putchar('\n');
|
|
|
1980 }
|
|
|
1981
|
|
|
1982 return x;
|
|
|
1983 }
|
|
|
1984
|
|
|
1985 /*
|
|
|
1986 * check for an "interrupt signal": CTRL-break or CTRL-C
|
|
|
1987 */
|
|
|
1988 void
|
|
|
1989 mch_breakcheck(void)
|
|
|
1990 {
|
|
|
1991 if (ctrlc_pressed)
|
|
|
1992 {
|
|
|
1993 ctrlc_pressed = FALSE;
|
|
|
1994 got_int = TRUE;
|
|
|
1995 }
|
|
|
1996 }
|
|
|
1997
|
|
|
1998 /*
|
|
|
1999 * Return TRUE if "p" contain a wildcard that can be expanded by
|
|
|
2000 * dos_expandpath().
|
|
|
2001 */
|
|
|
2002 int
|
|
|
2003 mch_has_exp_wildcard(char_u *p)
|
|
|
2004 {
|
|
39
|
2005 for ( ; *p; mb_ptr_adv(p))
|
|
7
|
2006 {
|
|
|
2007 if (vim_strchr((char_u *)"?*[", *p) != NULL
|
|
|
2008 || (*p == '~' && p[1] != NUL))
|
|
|
2009 return TRUE;
|
|
|
2010 }
|
|
|
2011 return FALSE;
|
|
|
2012 }
|
|
|
2013
|
|
|
2014 /*
|
|
|
2015 * Return TRUE if "p" contain a wildcard or a "~1" kind of thing (could be a
|
|
|
2016 * shortened file name).
|
|
|
2017 */
|
|
|
2018 int
|
|
|
2019 mch_has_wildcard(char_u *p)
|
|
|
2020 {
|
|
39
|
2021 for ( ; *p; mb_ptr_adv(p))
|
|
7
|
2022 {
|
|
|
2023 if (vim_strchr((char_u *)
|
|
|
2024 # ifdef VIM_BACKTICK
|
|
|
2025 "?*$[`"
|
|
|
2026 # else
|
|
|
2027 "?*$["
|
|
|
2028 # endif
|
|
|
2029 , *p) != NULL
|
|
|
2030 || (*p == '~' && p[1] != NUL))
|
|
|
2031 return TRUE;
|
|
|
2032 }
|
|
|
2033 return FALSE;
|
|
|
2034 }
|
|
|
2035
|
|
|
2036 /*
|
|
|
2037 * Change directory to "path".
|
|
|
2038 * The normal chdir() does not change the default drive. This one does.
|
|
|
2039 * Return 0 for success, -1 for failure.
|
|
|
2040 */
|
|
|
2041 int
|
|
|
2042 mch_chdir(char *path)
|
|
|
2043 {
|
|
|
2044 if (path[0] == NUL) /* just checking... */
|
|
|
2045 return 0;
|
|
1936
|
2046 if (p_verbose >= 5)
|
|
|
2047 {
|
|
|
2048 verbose_enter();
|
|
|
2049 smsg((char_u *)"chdir(%s)", path);
|
|
|
2050 verbose_leave();
|
|
|
2051 }
|
|
7
|
2052 if (path[1] == ':') /* has a drive name */
|
|
|
2053 {
|
|
|
2054 if (change_drive(TOLOWER_ASC(path[0]) - 'a' + 1))
|
|
|
2055 return -1; /* invalid drive name */
|
|
|
2056 path += 2;
|
|
|
2057 }
|
|
|
2058 if (*path == NUL) /* drive name only */
|
|
|
2059 return 0;
|
|
|
2060 return chdir(path); /* let the normal chdir() do the rest */
|
|
|
2061 }
|
|
|
2062
|
|
|
2063 #ifdef DJGPP
|
|
|
2064 /*
|
|
|
2065 * mch_rename() works around a bug in rename (aka MoveFile) in
|
|
|
2066 * Windows 95: rename("foo.bar", "foo.bar~") will generate a
|
|
|
2067 * file whose short file name is "FOO.BAR" (its long file name will
|
|
|
2068 * be correct: "foo.bar~"). Because a file can be accessed by
|
|
|
2069 * either its SFN or its LFN, "foo.bar" has effectively been
|
|
|
2070 * renamed to "foo.bar", which is not at all what was wanted. This
|
|
|
2071 * seems to happen only when renaming files with three-character
|
|
|
2072 * extensions by appending a suffix that does not include ".".
|
|
|
2073 * Windows NT gets it right, however, with an SFN of "FOO~1.BAR".
|
|
|
2074 * This works like mch_rename in os_win32.c, but is a bit simpler.
|
|
|
2075 *
|
|
|
2076 * Like rename(), returns 0 upon success, non-zero upon failure.
|
|
|
2077 * Should probably set errno appropriately when errors occur.
|
|
|
2078 */
|
|
|
2079
|
|
|
2080 int
|
|
|
2081 mch_rename(const char *OldFile, const char *NewFile)
|
|
|
2082 {
|
|
|
2083 char_u *TempFile;
|
|
|
2084 int retval;
|
|
|
2085 int fd;
|
|
|
2086
|
|
|
2087 /* rename() works correctly without long file names, so use that */
|
|
|
2088 if (!_USE_LFN)
|
|
|
2089 return rename(OldFile, NewFile);
|
|
|
2090
|
|
|
2091 if ((TempFile = alloc((unsigned)(STRLEN(OldFile) + 13))) == NULL)
|
|
|
2092 return -1;
|
|
|
2093
|
|
|
2094 STRCPY(TempFile, OldFile);
|
|
|
2095 STRCPY(gettail(TempFile), "axlqwqhy.ba~");
|
|
|
2096 if (rename(OldFile, TempFile))
|
|
|
2097 retval = -1;
|
|
|
2098 else
|
|
|
2099 {
|
|
|
2100 /* now create an empty file called OldFile; this prevents
|
|
|
2101 * the operating system using OldFile as an alias (SFN)
|
|
|
2102 * if we're renaming within the same directory. For example,
|
|
|
2103 * we're editing a file called filename.asc.txt by its SFN,
|
|
|
2104 * filena~1.txt. If we rename filena~1.txt to filena~1.txt~
|
|
|
2105 * (i.e., we're making a backup while writing it), the SFN
|
|
|
2106 * for filena~1.txt~ will be filena~1.txt, by default, which
|
|
39
|
2107 * will cause all sorts of problems later in buf_write(). So, we
|
|
7
|
2108 * create an empty file called filena~1.txt and the system will have
|
|
|
2109 * to find some other SFN for filena~1.txt~, such as filena~2.txt
|
|
|
2110 */
|
|
|
2111 if ((fd = open(OldFile, O_RDWR|O_CREAT|O_EXCL, 0444)) < 0)
|
|
|
2112 return -1;
|
|
|
2113 retval = rename(TempFile, NewFile);
|
|
|
2114 close(fd);
|
|
|
2115 mch_remove((char_u *)OldFile);
|
|
|
2116
|
|
|
2117 /* If renaming to NewFile failed, rename TempFile back to OldFile, so
|
|
|
2118 * that it looks like nothing happened. */
|
|
|
2119 if (retval)
|
|
|
2120 rename(TempFile, OldFile);
|
|
|
2121 }
|
|
|
2122 vim_free(TempFile);
|
|
|
2123
|
|
|
2124 return retval; /* success */
|
|
|
2125 }
|
|
|
2126 #endif
|
|
|
2127
|
|
|
2128 #if defined(DJGPP) || defined(PROTO)
|
|
|
2129 /*
|
|
|
2130 * setlocale() for DJGPP with MS-DOS codepage support
|
|
|
2131 * Author: Cyril Slobin <slobin@fe.msk.ru>
|
|
|
2132 *
|
|
|
2133 * Scaled down a lot for use by Vim: Only support setlocale(LC_ALL, "").
|
|
|
2134 */
|
|
|
2135
|
|
|
2136 #undef setlocale
|
|
|
2137
|
|
3927
|
2138 #ifndef PROTO
|
|
|
2139 # include <go32.h>
|
|
|
2140 # include <inlines/ctype.ha>
|
|
|
2141 #endif
|
|
7
|
2142 #include <locale.h>
|
|
|
2143
|
|
|
2144 #define UPCASE (__dj_ISALNUM | __dj_ISALPHA | __dj_ISGRAPH | __dj_ISPRINT | __dj_ISUPPER)
|
|
|
2145 #define LOCASE (__dj_ISALNUM | __dj_ISALPHA | __dj_ISGRAPH | __dj_ISPRINT | __dj_ISLOWER)
|
|
|
2146
|
|
|
2147 char *
|
|
|
2148 djgpp_setlocale(void)
|
|
|
2149 {
|
|
|
2150 __dpmi_regs regs;
|
|
|
2151 struct { char id; unsigned short off, seg; } __attribute__ ((packed)) info;
|
|
|
2152 unsigned char buffer[0x82], lower, upper;
|
|
|
2153 int i;
|
|
|
2154
|
|
|
2155 regs.x.ax = 0x6502;
|
|
|
2156 regs.x.bx = 0xffff;
|
|
|
2157 regs.x.dx = 0xffff;
|
|
|
2158 regs.x.cx = 5;
|
|
|
2159 regs.x.es = __tb >> 4;
|
|
|
2160 regs.x.di = __tb & 0xf;
|
|
|
2161
|
|
|
2162 __dpmi_int(0x21, ®s);
|
|
|
2163
|
|
|
2164 if (regs.x.flags & 1)
|
|
|
2165 return NULL;
|
|
|
2166
|
|
|
2167 dosmemget(__tb, 5, &info);
|
|
|
2168 dosmemget((info.seg << 4) + info.off, 0x82, buffer);
|
|
|
2169
|
|
|
2170 if (*(short *)buffer != 0x80)
|
|
|
2171 return NULL;
|
|
|
2172
|
|
|
2173 /* Fix problem of underscores being replaced with y-umlaut. (Levin) */
|
|
|
2174 if (buffer[26] == 0x5f)
|
|
|
2175 buffer[26] = 0x98;
|
|
|
2176
|
|
|
2177 for (i = 0; i < 0x80; i++)
|
|
|
2178 {
|
|
|
2179 lower = i + 0x80;
|
|
|
2180 upper = (buffer+2)[i];
|
|
|
2181 if (lower != upper)
|
|
|
2182 {
|
|
|
2183 __dj_ctype_flags[lower+1] = LOCASE;
|
|
|
2184 __dj_ctype_toupper[lower+1] = upper;
|
|
|
2185 if (__dj_ctype_flags[upper+1] == 0)
|
|
|
2186 __dj_ctype_flags[upper+1] = UPCASE;
|
|
|
2187 if (__dj_ctype_tolower[upper+1] == upper)
|
|
|
2188 __dj_ctype_tolower[upper+1] = lower;
|
|
|
2189 }
|
|
|
2190 }
|
|
|
2191
|
|
|
2192 return "C";
|
|
|
2193 }
|
|
|
2194
|
|
|
2195 #if defined(FEAT_CLIPBOARD) || defined(PROTO)
|
|
|
2196
|
|
|
2197 /*
|
|
|
2198 * Clipboard stuff, for cutting and pasting text to other windows.
|
|
|
2199 *
|
|
|
2200 * Implementation of DOS/Windows clipboard data transfer
|
|
|
2201 * by David Kotchan (dkotchan@sympatico.ca)
|
|
|
2202 */
|
|
|
2203
|
|
|
2204 #define CF_TEXT 0x01 /* Windows clipboard format: Windows (ANSI) text */
|
|
|
2205 #define CF_OEMTEXT 0x07 /* Windows clipboard format: OEM (DOS) text */
|
|
|
2206 #define CF_VIMCLIP 0x04 /* trick: SYLK clipboard format for VimClipboard */
|
|
|
2207
|
|
|
2208 static int Win16OpenClipboard(void);
|
|
|
2209 static int Win16CloseClipboard(void);
|
|
|
2210 static int Win16EmptyClipboard(void);
|
|
|
2211 static char_u *Win16GetClipboardData(int clip_data_format);
|
|
|
2212 static int Win16SetClipboardData(int clip_data_format, char_u *clip_data, int clip_data_size, int clip_data_type);
|
|
|
2213
|
|
|
2214 /*
|
|
|
2215 * Make vim the owner of the current selection. Return OK upon success.
|
|
|
2216 */
|
|
|
2217 int
|
|
|
2218 clip_mch_own_selection(VimClipboard *cbd)
|
|
|
2219 {
|
|
|
2220 /*
|
|
|
2221 * Never actually own the clipboard. If another application sets the
|
|
|
2222 * clipboard, we don't want to think that we still own it.
|
|
|
2223 */
|
|
|
2224 return FAIL;
|
|
|
2225 }
|
|
|
2226
|
|
|
2227 /*
|
|
|
2228 * Make vim NOT the owner of the current selection.
|
|
|
2229 */
|
|
|
2230 void
|
|
|
2231 clip_mch_lose_selection(VimClipboard *cbd)
|
|
|
2232 {
|
|
|
2233 /* Nothing needs to be done here */
|
|
|
2234 }
|
|
|
2235
|
|
|
2236 /*
|
|
|
2237 * Read the Windows clipboard text and put it in Vim's clipboard register.
|
|
|
2238 */
|
|
|
2239 void
|
|
|
2240 clip_mch_request_selection(VimClipboard *cbd)
|
|
|
2241 {
|
|
2896
|
2242 int type = MAUTO;
|
|
7
|
2243 char_u *pAllocated = NULL;
|
|
|
2244 char_u *pClipText = NULL;
|
|
|
2245 int clip_data_format = 0;
|
|
|
2246
|
|
|
2247 if (Win16OpenClipboard())
|
|
|
2248 {
|
|
|
2249 /* Check for Vim's own clipboard format first. The CF_VIMCLIP format
|
|
|
2250 * is just ordinary text (like CF_TEXT) except prepended by the
|
|
|
2251 * selection type (as a single character). Note that under DOS we
|
|
|
2252 * actually cannot define a custom CF_VIMCLIP clipboard format; we
|
|
|
2253 * use instead one of the existing Windows-defined formats, usually
|
|
|
2254 * "DIF" or "SYLK". See Win16GetClipboardData() for details.
|
|
|
2255 *
|
|
|
2256 * Note that Win16GetClipboardData() returns the address of the memory
|
|
|
2257 * block it allocated. This is not necessary the start of the
|
|
|
2258 * clipboard text data: there may be other bytes ahead of the
|
|
|
2259 * text (particularly for CF_VIMCLIP) which are used for data
|
|
|
2260 * management. So pClipText is not necessarily == pAllocated.
|
|
|
2261 */
|
|
|
2262
|
|
|
2263 if ((pAllocated = Win16GetClipboardData(CF_VIMCLIP)) != NULL)
|
|
|
2264 {
|
|
|
2265 clip_data_format = CF_VIMCLIP;
|
|
|
2266 pClipText = pAllocated;
|
|
|
2267
|
|
|
2268 switch (*pClipText++) /* after ++, pClipText points to text */
|
|
|
2269 {
|
|
|
2270 default:
|
|
|
2271 case 'L': type = MLINE; break;
|
|
|
2272 case 'C': type = MCHAR; break;
|
|
|
2273 #ifdef FEAT_VISUAL
|
|
|
2274 case 'B': type = MBLOCK; break;
|
|
|
2275 #endif
|
|
|
2276 }
|
|
|
2277 }
|
|
|
2278
|
|
|
2279 /* Otherwise, check for the normal Windows text formats. There are
|
|
|
2280 * two of these: CF_TEXT (common) and CF_OEMTEXT (used for DOS
|
|
|
2281 * compatibility). Experiments show that, under the DOS/Windows
|
|
|
2282 * clipboard interface, writing CF_TEXT data to the clipboard
|
|
|
2283 * automatically creates a CF_OEMTEXT format as well.
|
|
|
2284 */
|
|
|
2285
|
|
|
2286 else if ((pAllocated = Win16GetClipboardData(CF_TEXT)) != NULL)
|
|
|
2287 {
|
|
|
2288 clip_data_format = CF_TEXT;
|
|
|
2289 pClipText = pAllocated;
|
|
|
2290 }
|
|
|
2291
|
|
|
2292 else if ((pAllocated = Win16GetClipboardData(CF_OEMTEXT)) != NULL)
|
|
|
2293 {
|
|
|
2294 clip_data_format = CF_OEMTEXT;
|
|
|
2295 pClipText = pAllocated;
|
|
|
2296 }
|
|
|
2297
|
|
|
2298 /* Did we get anything? */
|
|
|
2299
|
|
|
2300 if (pClipText != NULL)
|
|
|
2301 {
|
|
|
2302 char_u *pDest;
|
|
|
2303 char_u *pStart;
|
|
|
2304 char_u *pEnd;
|
|
|
2305
|
|
|
2306 long_u clip_data_size = 0;
|
|
|
2307
|
|
|
2308 /* The Windows clipboard normally stores its text lines terminated
|
|
|
2309 * by <CR><NL>. But Vim uses only <NL>, so translate the <CR><NL>
|
|
|
2310 * into <NL>. Also, watch for possible null bytes at the end of
|
|
|
2311 * pClipText. These are padding added by "get_clipboard_data"
|
|
|
2312 * (int 0x2f, AX= 0x1705) in order to round the data size up to the
|
|
|
2313 * next multiple of 32 bytes. See Win16GetClipboardData() for
|
|
|
2314 * details.
|
|
|
2315 */
|
|
|
2316
|
|
|
2317 pDest = strstr( pClipText, "\r\n" ); /* find first <CR><NL> */
|
|
|
2318
|
|
|
2319 if (pDest != NULL) /* found one? */
|
|
|
2320 {
|
|
|
2321 pStart = pDest + 1; /* points to <NL> after <CR> */
|
|
|
2322 pEnd = strstr( pStart, "\r\n" );/* find next <CR><NL> */
|
|
|
2323
|
|
|
2324 while (pEnd != NULL) /* found one? */
|
|
|
2325 {
|
|
|
2326 memmove(pDest, pStart, (long)(pEnd - pStart));
|
|
|
2327 /* exclude <CR> */
|
|
|
2328 pDest += (long)(pEnd - pStart); /* new destination */
|
|
|
2329 pStart = pEnd + 1; /* new starting point */
|
|
|
2330 pEnd = strstr(pStart, "\r\n"); /* find next <CR><NL> */
|
|
|
2331 }
|
|
|
2332
|
|
|
2333 /* Fell out of while() loop: no more <CR><NL> pairs. Just copy
|
|
|
2334 * the rest of the data, up to the first null byte. */
|
|
|
2335 pEnd = strchr(pStart, '\0'); /* find first null */
|
|
|
2336
|
|
|
2337 memmove(pDest, pStart, (long)(pEnd - pStart)); /* exclude nul */
|
|
|
2338 pDest += (long)(pEnd - pStart);
|
|
|
2339 *pDest = '\0'; /* terminate */
|
|
|
2340
|
|
|
2341 /* Now that all <CR><NL> pairs have been "compressed" into just
|
|
|
2342 * <NL>'s, determine the true text length. */
|
|
|
2343 clip_data_size = (long_u)(pDest - pClipText);
|
|
|
2344 }
|
|
|
2345 else
|
|
|
2346 {
|
|
|
2347 /* no <CR><NL> pairs at all */
|
|
|
2348 /* Since the data may have been padded with trailing nulls,
|
|
|
2349 * determine the true string length. */
|
|
|
2350 clip_data_size = STRLEN(pClipText); /* true data length */
|
|
|
2351 }
|
|
|
2352
|
|
|
2353 /* Copy the cleaned-up data over to Vim's clipboard "*" register. */
|
|
|
2354 clip_yank_selection(type, pClipText, clip_data_size, cbd);
|
|
|
2355
|
|
|
2356 /* Free the memory that Win16GetClipboardData() allocated. */
|
|
|
2357 vim_free(pAllocated);
|
|
|
2358 }
|
|
|
2359
|
|
|
2360 Win16CloseClipboard();
|
|
|
2361
|
|
|
2362 } // end if (Win16OpenClipboard())
|
|
|
2363 }
|
|
|
2364
|
|
|
2365 /*
|
|
|
2366 * Send the currently selected Vim text to the Windows clipboard.
|
|
|
2367 */
|
|
|
2368 void
|
|
|
2369 clip_mch_set_selection( VimClipboard *cbd )
|
|
|
2370 {
|
|
|
2371 char_u *pClipData = NULL;
|
|
|
2372 long_u clip_data_size;
|
|
|
2373 int clip_data_type;
|
|
|
2374
|
|
|
2375 /* If the '*' register isn't already filled in, fill it in now. */
|
|
|
2376 cbd->owned = TRUE;
|
|
|
2377 clip_get_selection(cbd);
|
|
|
2378 cbd->owned = FALSE;
|
|
|
2379
|
|
|
2380 /*
|
|
|
2381 * clip_convert_selection() returns a pointer to a buffer containing
|
|
|
2382 * the text to send to the Windows clipboard, together with a count
|
|
|
2383 * of the number of characters (bytes) in the buffer. The function's
|
|
|
2384 * return value is the 'type' of selection: MLINE, MCHAR, or MBLOCK;
|
|
|
2385 * or -1 for failure.
|
|
|
2386 */
|
|
|
2387 clip_data_type = clip_convert_selection(&pClipData, &clip_data_size, cbd);
|
|
|
2388
|
|
|
2389 if (clip_data_type < 0) /* could not convert? */
|
|
|
2390 return; /* early exit */
|
|
|
2391
|
|
|
2392 if (Win16OpenClipboard())
|
|
|
2393 {
|
|
|
2394 if (Win16EmptyClipboard())
|
|
|
2395 {
|
|
|
2396 int sentOK;
|
|
|
2397
|
|
|
2398 sentOK = Win16SetClipboardData(CF_TEXT, pClipData,
|
|
|
2399 clip_data_size, clip_data_type);
|
|
|
2400 sentOK = Win16SetClipboardData(CF_VIMCLIP,
|
|
|
2401 pClipData, clip_data_size, clip_data_type) && sentOK;
|
|
|
2402
|
|
|
2403 if (!sentOK)
|
|
|
2404 {
|
|
|
2405 /* one or both of Win16SetClipboardData() failed. */
|
|
|
2406 /* Technically we don't know why Win16SetClipboardData()
|
|
|
2407 * failed, but almost always it will be because there wasn't
|
|
1210
|
2408 * enough DOS memory to buffer the data, so report that as the
|
|
7
|
2409 * problem.
|
|
|
2410 *
|
|
|
2411 * We report the error here (instead of in
|
|
|
2412 * Win16SetClipboardData()) because we don't want the error
|
|
|
2413 * reported twice.
|
|
|
2414 */
|
|
|
2415 EMSG("E450: Selection too large, cannot allocate DOS buffer");
|
|
|
2416 }
|
|
|
2417 }
|
|
|
2418
|
|
|
2419 Win16CloseClipboard();
|
|
|
2420 }
|
|
|
2421
|
|
|
2422 /* release memory allocated by clip_convert_selection() */
|
|
|
2423 vim_free(pClipData);
|
|
|
2424
|
|
|
2425 return;
|
|
|
2426 }
|
|
|
2427
|
|
|
2428 /*
|
|
|
2429 * Win16OpenClipboard: open the Windows clipboard. The clipboard must be open
|
|
|
2430 * before it can be communicated with at all. Return TRUE on success,
|
|
|
2431 * FALSE on failure.
|
|
|
2432 */
|
|
|
2433 static int
|
|
|
2434 Win16OpenClipboard(void)
|
|
|
2435 {
|
|
|
2436 __dpmi_regs dpmi_regs;
|
|
|
2437
|
|
|
2438 long start_time;
|
|
|
2439 int tick_count;
|
|
|
2440
|
|
4352
|
2441 /* int 0x2f, AX = 0x1701 attempts to open the Windows clipboard. Upon
|
|
7
|
2442 * return from the interrupt, if AX is non-zero, the clipboard was
|
|
|
2443 * successfully opened. If AX is zero, the clipboard could not be opened
|
|
|
2444 * because it is currently in use by another process.
|
|
|
2445 *
|
|
|
2446 * Remark: other DOS programs I (dk) have written that use the Windows
|
|
|
2447 * clipboard sometimes encounter the problem that the clipboard cannot
|
|
|
2448 * be opened even though it is demonstrably not in use by any other
|
|
|
2449 * process. In all cases, repeated attempts to open the clipboard
|
|
|
2450 * eventually succeed, but the initial attempt occasionally fails.
|
|
|
2451 *
|
|
|
2452 * The problem is intermittent and appears to be related to DOS being
|
|
|
2453 * "busy" at certain unpredictable times. DOS maintains two internal
|
|
|
2454 * flags that indicate whether it's busy: InDOS and CritErr. The
|
|
|
2455 * location of InDOS can be found by calling int 0x21, AH = 0x34. The
|
|
|
2456 * location of CritErr can be found by calling int 0x21, AX = 0x5d06.
|
|
|
2457 * If either of these flags is set, DOS is "busy" and cannot be
|
|
|
2458 * interrupted. See "Undocumented DOS" by Schulman et al for details.
|
|
|
2459 *
|
|
|
2460 * However here I take the easier approach that if the first call to open
|
|
|
2461 * the clipboard does not succeed, just try again. In fact, try once per
|
|
|
2462 * biostime() clock tick, up to 18 times (about one second).
|
|
|
2463 */
|
|
|
2464
|
|
|
2465 tick_count = 0;
|
|
|
2466
|
|
|
2467 dpmi_regs.x.ax = 0x1701; /* open Windows clipboard */
|
|
|
2468 if (__dpmi_int(0x2f, &dpmi_regs) == -1)
|
|
|
2469 {
|
|
|
2470 /* real-mode interrupt failed? */
|
|
|
2471 return FALSE; /* FALSE --> clipboard not open */
|
|
|
2472 }
|
|
|
2473
|
|
|
2474 /* wait up to one second */
|
|
|
2475 while (dpmi_regs.x.ax == 0 && tick_count++ < 18)
|
|
|
2476 {
|
|
|
2477 /* Wait one clock tick (18.2 ticks/sec = 55 msec per tick).
|
|
|
2478 *
|
|
|
2479 * We busy-wait here. Unfortunately, delay() and usleep() have been
|
|
|
2480 * reported to give problems with the original Windows 95. This is
|
|
|
2481 * fixed in service pack 1, but not everybody installed that.
|
|
|
2482 */
|
|
|
2483 start_time = biostime(0, 0L);
|
|
|
2484 while (biostime(0, 0L) == start_time)
|
|
|
2485 ;
|
|
|
2486
|
|
|
2487 dpmi_regs.x.ax = 0x1701; /* open Windows clipboard */
|
|
|
2488 if (__dpmi_int(0x2f, &dpmi_regs) == -1)
|
|
|
2489 {
|
|
|
2490 /* real-mode interrupt failed? */
|
|
|
2491 return FALSE; /* FALSE --> clipboard not open */
|
|
|
2492 }
|
|
|
2493 }
|
|
|
2494
|
|
|
2495 /* Couldn't open the clipboard, even after 18 attempts? */
|
|
|
2496
|
|
|
2497 if (tick_count >= 18 && dpmi_regs.x.ax == 0)
|
|
|
2498 return FALSE; /* FALSE --> clipboard not open */
|
|
|
2499
|
|
|
2500 return TRUE; /* TRUE --> clipboard opened successfully, OK */
|
|
|
2501 }
|
|
|
2502
|
|
|
2503 /*
|
|
|
2504 * Win16CloseClipboard: close the Windows clipboard. Return TRUE on
|
|
|
2505 * success, FALSE on failure. This function can always be called,
|
|
|
2506 * whether the clipboard is open or not.
|
|
|
2507 */
|
|
|
2508 static int
|
|
|
2509 Win16CloseClipboard(void)
|
|
|
2510 {
|
|
|
2511 __dpmi_regs dpmi_regs;
|
|
|
2512
|
|
|
2513 /* Close the clipboard. This interrupt can always be called, even
|
|
|
2514 * if the clipboard is already closed.
|
|
|
2515 */
|
|
|
2516
|
|
|
2517 dpmi_regs.x.ax = 0x1708; /* close the clipboard */
|
|
|
2518 if (__dpmi_int(0x2f, &dpmi_regs) == -1)
|
|
|
2519 {
|
|
|
2520 /* real-mode interrupt failed? */
|
|
|
2521 return FALSE; /* FALSE --> clipboard could not be closed */
|
|
|
2522 }
|
|
|
2523
|
|
|
2524 return TRUE; /* TRUE --> clipboard closed successfully, OK */
|
|
|
2525 }
|
|
|
2526
|
|
|
2527 /*
|
|
|
2528 * Win16EmptyClipboard: empty the (previously opened) Windows clipboard.
|
|
|
2529 * Return TRUE on success, FALSE on failure.
|
|
|
2530 */
|
|
|
2531 static int
|
|
|
2532 Win16EmptyClipboard(void)
|
|
|
2533 {
|
|
|
2534 __dpmi_regs dpmi_regs;
|
|
|
2535
|
|
4352
|
2536 /* int 0x2f, AX = 0x1702 attempts to empty the Windows clipboard. Upon
|
|
7
|
2537 * return from the interrupt, if AX == 0, the clipboard could not be
|
|
|
2538 * emptied (for some reason).
|
|
|
2539 */
|
|
|
2540 dpmi_regs.x.ax = 0x1702; /* empty the Windows clipboard */
|
|
|
2541 if (__dpmi_int(0x2f, &dpmi_regs) == -1)
|
|
|
2542 {
|
|
|
2543 /* real-mode interrupt failed? */
|
|
|
2544 return FALSE; /* FALSE --> clipboard could not be emptied */
|
|
|
2545 }
|
|
|
2546
|
|
|
2547 /* Did we succeed in clearing the clipboard? */
|
|
|
2548 if (dpmi_regs.x.ax == 0)
|
|
|
2549 return FALSE; /* FALSE --> clipboard could not be emptied */
|
|
|
2550
|
|
|
2551 return TRUE; /* TRUE --> clipboard was emptied, OK */
|
|
|
2552 }
|
|
|
2553
|
|
|
2554 /*
|
|
|
2555 * FreeDOSMemory: a helper function to free memory previously
|
|
|
2556 * allocated by a call to __dpmi_allocate_dos_memory().
|
|
|
2557 */
|
|
|
2558 static void
|
|
|
2559 FreeDOSMemory(int protected_mode_selector)
|
|
|
2560 {
|
|
|
2561 /* Free the DOS buffer and release the DPMI prot-mode selector.
|
|
|
2562 *
|
|
|
2563 * It's important that DOS memory be properly released because
|
|
|
2564 * there's only a limited amount of it. Therefore, if the call
|
|
|
2565 * to __dpmi_free_dos_memory() fails, emit an error message
|
|
|
2566 * unconditionally.
|
|
|
2567 */
|
|
|
2568 if (__dpmi_free_dos_memory(protected_mode_selector) == -1)
|
|
|
2569 EMSG("E451: could not free DOS memory buffer (DJGPP)");
|
|
|
2570 }
|
|
|
2571
|
|
|
2572 /*
|
|
|
2573 * Win16GetClipboardData: query the Windows clipboard as to whether data
|
|
|
2574 * is available in a particular clipboard format. If data is
|
|
|
2575 * available, allocate a buffer for it and read the data from the
|
|
|
2576 * clipboard into the buffer. Return a pointer to the buffer. If
|
|
|
2577 * no data is available in the requested format, return NULL.
|
|
|
2578 *
|
|
|
2579 * This routine allocates memory to hold the retrieved clipboard
|
|
|
2580 * data. It's the caller's responsibility to free this memory
|
|
|
2581 * once it's finished using it. The memory should be freed by
|
|
|
2582 * calling vim_free().
|
|
|
2583 */
|
|
|
2584 static char_u *
|
|
|
2585 Win16GetClipboardData(int clip_data_format)
|
|
|
2586 {
|
|
|
2587 __dpmi_regs dpmi_regs;
|
|
|
2588
|
|
|
2589 int real_mode_segment_address;
|
|
|
2590 int protected_mode_selector;
|
|
|
2591
|
|
|
2592 char_u *clip_data_buffer;
|
|
|
2593 long_u clip_data_size;
|
|
|
2594
|
|
|
2595 /* We only handle clipboard formats we recognize, others are ignored.
|
|
|
2596 *
|
|
|
2597 * It's not possible to create a custom clipboard format for VimClipboard
|
|
|
2598 * data under DOS, so one of the predefined Windows formats had to be
|
|
|
2599 * used for CF_VIMCLIP. Two obscure formats, popular when Windows 3.0
|
|
|
2600 * came out but no longer in much use today, are the DIF and SYLK formats.
|
|
|
2601 * DIF is the Data Interchange Format, SYLK is the Symbolic Link format.
|
|
|
2602 * They are both text formats and either one can be hijacked for use as
|
|
|
2603 * "the VimClipboard format". Of course, this conflicts with anyone who
|
|
|
2604 * still *is* using DIF or SYLK data formats, but that will be very few
|
|
|
2605 * people.
|
|
|
2606 *
|
|
|
2607 * I (dk) chose SYLK as the more obscure format because it was used
|
|
|
2608 * mostly for Microsoft Multiplan (the pre-cursor to Excel) and it's not
|
|
|
2609 * likely Multiplan is used anywhere much anymore. Mind you, Excel can
|
|
|
2610 * still export to both DIF and SYLK formats.
|
|
|
2611 */
|
|
|
2612
|
|
|
2613 switch (clip_data_format)
|
|
|
2614 {
|
|
|
2615 case CF_VIMCLIP: /* Vim's own special clipboard format */
|
|
|
2616 case CF_TEXT: /* Windows text */
|
|
|
2617 case CF_OEMTEXT: /* DOS (OEM) text */
|
|
|
2618
|
|
4352
|
2619 /* int 0x2f, AX = 0x1704 returns the number of bytes of data currently
|
|
7
|
2620 * on the Windows clipboard, for the specified format. Upon return
|
|
|
2621 * from the interrupt, DX:AX = the number of bytes, rounded up to the
|
|
|
2622 * nearest multiple of 32.
|
|
|
2623 */
|
|
|
2624
|
|
|
2625 dpmi_regs.x.ax = 0x1704; /* get size of clipbd data */
|
|
|
2626 dpmi_regs.x.dx = clip_data_format;
|
|
|
2627 if (__dpmi_int(0x2f, &dpmi_regs) == -1)
|
|
|
2628 {
|
|
|
2629 /* real-mode interrupt failed? */
|
|
|
2630 return NULL; /* early exit */
|
|
|
2631 }
|
|
|
2632
|
|
|
2633 /* Did we get anything? If not, this is not an error. */
|
|
|
2634 if (dpmi_regs.x.dx == 0 && dpmi_regs.x.ax == 0)
|
|
|
2635 {
|
|
|
2636 /* no CF_VIMCLIP data? */
|
|
|
2637 return NULL; /* early exit */
|
|
|
2638 }
|
|
|
2639
|
|
|
2640 /* There is data available in the requested clipboard format.
|
|
|
2641 *
|
|
|
2642 * Calculate data size. Remember this is rounded up to the nearest
|
|
|
2643 * multiple of 32, so clip_data_size is actually an upper limit.
|
|
|
2644 * The extra bytes, if any, are set to null (0x00) when the data is
|
|
|
2645 * read from the clipboard. (Later:) actually I'm no longer sure
|
|
|
2646 * this is strictly true: the end-of-data is marked by a null, but
|
|
|
2647 * the extra bytes appear to sometimes be null, sometimes not.
|
|
|
2648 * They may just be garbage.
|
|
|
2649 */
|
|
|
2650 clip_data_size = dpmi_regs.x.ax + (dpmi_regs.x.dx << 16);
|
|
|
2651
|
|
|
2652 /* Allocate memory to retrieve the data. The buffer has to lie in the
|
|
|
2653 * DOS memory region (in the first 1 MByte of address space) because
|
|
|
2654 * the Windows clipboard interface expects a 16-bit segment:offset
|
|
|
2655 * pointer to a buffer address within the DOS region. Must therefore
|
|
|
2656 * use __dpmi_allocate_dos_memory() instead of lalloc() or alloc().
|
|
|
2657 */
|
|
|
2658 real_mode_segment_address = __dpmi_allocate_dos_memory(
|
|
|
2659 (clip_data_size + 15) >> 4, /* buffer size, in 16-byte paragraphs */
|
|
|
2660 &protected_mode_selector); /* prot-mode selector for the address */
|
|
|
2661
|
|
|
2662 if (real_mode_segment_address == -1)
|
|
|
2663 {
|
|
|
2664 /* memory allocation failed. */
|
|
|
2665
|
|
|
2666 /* Technically we don't know why the allocation failed, but
|
|
|
2667 * almost always it will be because there wasn't enough DOS
|
|
|
2668 * memory to satisfy the request, so report that as the problem.
|
|
|
2669 * On my system, DJGPP is able to satisfy a DOS allocation request
|
|
|
2670 * up to about 600K in size. This depends on your HIMEM.SYS and
|
|
|
2671 * EMM386.EXE settings however.
|
|
|
2672 */
|
|
|
2673 EMSG("E452: Clipboard data too large, cannot allocate DOS buffer");
|
|
|
2674 return NULL; /* early exit */
|
|
|
2675 }
|
|
|
2676
|
|
|
2677 /* Copy data from the clipboard into the buffer. Experiments show that
|
|
|
2678 * the Windows clipboard is smart enough to handle data transfers
|
|
|
2679 * larger than 64K properly, even though the buffer address is a 16-bit
|
|
|
2680 * segment:offset (which would normally limit the block size to 64K
|
|
|
2681 * unless ES gets incremented).
|
|
|
2682 */
|
|
|
2683 dpmi_regs.x.ax = 0x1705; /* get clipboard data */
|
|
|
2684 dpmi_regs.x.dx = clip_data_format; /* CF_VIMCLIP */
|
|
|
2685 dpmi_regs.x.es = real_mode_segment_address; /* buffer ad: segment */
|
|
|
2686 dpmi_regs.x.bx = 0; /* buffer ad: offset */
|
|
|
2687 if (__dpmi_int( 0x2f, &dpmi_regs) == -1)
|
|
|
2688 {
|
|
|
2689 /* real-mode interrupt failed? */
|
|
|
2690 EMSG("E453: could not copy clipboard data to DOS buffer");
|
|
|
2691 FreeDOSMemory(protected_mode_selector); /* clean up DOS mem */
|
|
|
2692 return NULL; /* early exit */
|
|
|
2693 }
|
|
|
2694
|
|
|
2695 /* Clipboard data is now in DOS memory in the buffer pointed to by
|
|
|
2696 * ES:BX. Copy this into ordinary memory that Vim can access (ie.
|
|
|
2697 * prot-mode memory). Allocate one extra byte to ensure the text
|
|
|
2698 * is terminated properly (in case it was somehow corrupted).
|
|
|
2699 */
|
|
|
2700 clip_data_buffer = (char_u *)lalloc(clip_data_size + 1, TRUE);
|
|
|
2701
|
|
|
2702 if (clip_data_buffer == NULL)
|
|
|
2703 {
|
|
|
2704 /* allocation failed? */
|
|
|
2705 EMSG("E454: could not allocate clipboard memory buffer");
|
|
|
2706 FreeDOSMemory(protected_mode_selector); /* clean up DOS mem */
|
|
|
2707 return NULL; /* early exit */
|
|
|
2708 }
|
|
|
2709
|
|
|
2710 *(clip_data_buffer + clip_data_size) = '\0'; /* ensure terminated */
|
|
|
2711
|
|
|
2712 /* Copy the data from DOS memory to Vim-accessible memory. */
|
|
|
2713 movedata( /* DJGPP version of memcpy() */
|
|
|
2714 protected_mode_selector, 0, /* source: DOS ad (via selector) */
|
|
|
2715 _my_ds(), (unsigned)clip_data_buffer,
|
|
|
2716 /* target: normal mem address */
|
|
|
2717 clip_data_size); /* how many bytes */
|
|
|
2718
|
|
|
2719 /* Free the DOS buffer and release the DPMI prot-mode selector. */
|
|
|
2720 FreeDOSMemory(protected_mode_selector); /* clean up DOS memory */
|
|
|
2721
|
|
|
2722 return clip_data_buffer; /* return pointer to allocated buffer */
|
|
|
2723
|
|
|
2724 default: /* unknown clipboard format */
|
|
|
2725 return NULL;
|
|
|
2726 }
|
|
|
2727 }
|
|
|
2728
|
|
|
2729 /*
|
|
|
2730 * Win16SetClipboardData: send 'clip_data_size' bytes of data from the buffer
|
|
|
2731 * pointed to by 'clip_data', to the Windows clipboard. The data is
|
|
|
2732 * registered with the clipboard as being in the 'clip_data_format'
|
|
|
2733 * format.
|
|
|
2734 */
|
|
|
2735 static int
|
|
|
2736 Win16SetClipboardData(
|
|
|
2737 int clip_data_format,
|
|
|
2738 char_u *clip_data,
|
|
|
2739 int clip_data_size,
|
|
|
2740 int clip_data_type)
|
|
|
2741 {
|
|
|
2742 __dpmi_regs dpmi_regs;
|
|
|
2743
|
|
|
2744 int real_mode_segment_address;
|
|
|
2745 int protected_mode_selector;
|
|
|
2746 long_u protected_mode_offset = 0L;
|
|
|
2747 int total_size = clip_data_size;
|
|
|
2748
|
|
|
2749 char_u *clip_sel_type;
|
|
|
2750
|
|
|
2751 /* If we're using the CF_VIMCLIP custom format, allocate an extra
|
|
|
2752 * byte for clip_sel_type, which is a character indicating the type
|
|
|
2753 * of text selection: MLINE, MCHAR, or MBLOCK.
|
|
|
2754 */
|
|
|
2755 if (clip_data_format == CF_VIMCLIP)
|
|
|
2756 total_size++; /* extra byte for marker */
|
|
|
2757
|
|
|
2758 /* Data cannot be sent directly from a Vim string (pClipData) to
|
|
|
2759 * the Windows clipboard, because the Windows clipboard interface
|
|
|
2760 * expects a 16-bit (DOS) segment:offset address for the source
|
|
|
2761 * buffer. Therefore we must create a "transfer buffer" in the DOS
|
|
|
2762 * memory region (in the first 1 MByte of address space) and copy
|
|
|
2763 * the Vim string into that. From there, the data can then be sent
|
|
|
2764 * to the Windows clipboard.
|
|
|
2765 *
|
|
|
2766 * To allocate DOS memory, we must use __dpmi_allocate_dos_memory()
|
|
|
2767 * instead of lalloc() or alloc(). If the allocation fails, it will
|
|
|
2768 * almost invariably be because there is not enough DOS memory
|
|
|
2769 * available to accommodate the size of clip_data. There is nothing
|
|
|
2770 * we can do about this, we simply have to fail.
|
|
|
2771 */
|
|
|
2772 real_mode_segment_address = __dpmi_allocate_dos_memory(
|
|
|
2773 (total_size + 15) >> 4, /* buffer size, in 16-byte paragraphs */
|
|
|
2774 &protected_mode_selector); /* prot-mode selector for the address */
|
|
|
2775
|
|
|
2776 if (real_mode_segment_address == -1)
|
|
|
2777 {
|
|
|
2778 /* memory allocation failed. */
|
|
|
2779 /* Technically we don't know why the allocation failed, but
|
|
|
2780 * almost always it will be because there wasn't enough DOS
|
|
|
2781 * memory to satisfy the request. On my system, DJGPP is able
|
|
|
2782 * to satisfy a DOS allocation request up to about 600K in size.
|
|
|
2783 * This depends however on HIMEM.SYS and EMM386.EXE settings.
|
|
|
2784 */
|
|
|
2785 return FALSE; /* early exit */
|
|
|
2786 }
|
|
|
2787
|
|
|
2788 /* Copy data from Vim's buffer (clip_data) into the DOS transfer buffer.
|
|
|
2789 * This can be larger than 64K; movedata() takes care of crossing any
|
|
|
2790 * 16-bit segment boundaries.
|
|
|
2791 *
|
|
|
2792 * If we're using Vim's custom clipboard format, we must copy one extra
|
|
|
2793 * byte to indicate the type of selection: line, character, or block.
|
|
|
2794 */
|
|
|
2795 if (clip_data_format == CF_VIMCLIP)
|
|
|
2796 {
|
|
|
2797 switch (clip_data_type)
|
|
|
2798 {
|
|
|
2799 default:
|
|
|
2800 case MLINE: clip_sel_type = "L"; break;
|
|
|
2801 case MCHAR: clip_sel_type = "C"; break;
|
|
|
2802 #ifdef FEAT_VISUAL
|
|
|
2803 case MBLOCK: clip_sel_type = "B"; break;
|
|
|
2804 #endif
|
|
|
2805 }
|
|
|
2806
|
|
|
2807 movedata(
|
|
|
2808 _my_ds(), (unsigned)clip_sel_type,
|
|
|
2809 /* source: normal memory address */
|
|
|
2810 protected_mode_selector, 0, /* target: DOS ad (via selector) */
|
|
|
2811 1); /* how many bytes to copy */
|
|
|
2812
|
|
|
2813 protected_mode_offset += STRLEN(clip_sel_type); /* allow for marker */
|
|
|
2814 }
|
|
|
2815
|
|
|
2816 movedata(
|
|
|
2817 _my_ds(), (unsigned)clip_data, /* source: normal memory address */
|
|
|
2818 protected_mode_selector, /* target: DOS address (via selector) */
|
|
|
2819 protected_mode_offset, /* non-zero, if using clip_sel_type */
|
|
|
2820 clip_data_size); /* how many bytes to copy */
|
|
|
2821
|
|
|
2822 /* Send data from the DOS transfer buffer to the Windows clipboard.
|
|
4352
|
2823 * int 0x2f, AX = 0x1703 sends SI:CX bytes of data from the buffer
|
|
7
|
2824 * at ES:BX, to the clipboard.
|
|
|
2825 */
|
|
|
2826 dpmi_regs.x.ax = 0x1703; /* send clipboard data */
|
|
|
2827 dpmi_regs.x.dx = clip_data_format; /* flag: format of the data */
|
|
|
2828 dpmi_regs.x.si = ((total_size >> 16)
|
|
|
2829 & 0x0000ffffL); /* hi word of data size */
|
|
|
2830 dpmi_regs.x.cx = (total_size & 0x0000ffffL);
|
|
|
2831 /* lo word of data size */
|
|
|
2832 dpmi_regs.x.es = real_mode_segment_address; /* buffer address: segment */
|
|
|
2833 dpmi_regs.x.bx = 0; /* buffer address: offset */
|
|
|
2834 if (__dpmi_int(0x2f, &dpmi_regs) == -1)
|
|
|
2835 {
|
|
|
2836 /* real-mode interrupt failed. */
|
|
|
2837 FreeDOSMemory(protected_mode_selector); /* clean up DOS memory */
|
|
|
2838 return FALSE; /* early exit */
|
|
|
2839 }
|
|
|
2840
|
|
|
2841 /* Free the DOS buffer and release the DPMI prot-mode selector. */
|
|
|
2842 FreeDOSMemory(protected_mode_selector); /* clean up DOS memory */
|
|
|
2843
|
|
|
2844 return TRUE; /* TRUE --> data successfully sent to clipboard */
|
|
|
2845 }
|
|
|
2846
|
|
|
2847 #endif /* FEAT_CLIPBOARD */
|
|
|
2848 #endif /* DJGPP */
|
|
|
2849
|
|
|
2850 /*
|
|
|
2851 * End of MS-DOS only code
|
|
|
2852 */
|
|
|
2853 #endif /* WIN16 */
|
|
|
2854
|
|
|
2855 /* common MS-DOS and Win16 code follows */
|
|
|
2856
|
|
|
2857 static int
|
|
|
2858 vim_chmod(char_u *name)
|
|
|
2859 {
|
|
|
2860 char_u *p;
|
|
|
2861 int f;
|
|
|
2862 int c = 0;
|
|
|
2863
|
|
|
2864 /* chmod() can't handle a file name with a trailing slash, remove it.
|
|
|
2865 * But don't remove it for "/" or "c:/". */
|
|
|
2866 p = name + STRLEN(name);
|
|
|
2867 if (p > name)
|
|
|
2868 --p;
|
|
|
2869 if (p > name && (*p == '\\' || *p == '/') && p[-1] != ':')
|
|
|
2870 {
|
|
|
2871 c = *p; /* remove trailing (back)slash */
|
|
|
2872 *p = NUL;
|
|
|
2873 }
|
|
|
2874 else
|
|
|
2875 p = NULL;
|
|
|
2876 #if defined(__BORLANDC__) && (__BORLANDC__ > 0x410)
|
|
|
2877 /* this also sets the archive bit, supported by Borland C 4.0 and later,
|
|
|
2878 * where __BORLANDC__ is 0x450 (3.1 is 0x410) */
|
|
|
2879 f = _rtl_chmod((char *)name, 0, 0);
|
|
|
2880 #else
|
|
|
2881 f = _chmod((char *)name, 0, 0);
|
|
|
2882 #endif
|
|
|
2883 if (p != NULL)
|
|
|
2884 *p = c; /* put back (back)slash */
|
|
|
2885 return f;
|
|
|
2886 }
|
|
|
2887
|
|
|
2888 /*
|
|
|
2889 * get file permissions for 'name'
|
|
|
2890 * Returns -1 for error.
|
|
|
2891 * Returns FA_attributes defined in dos.h
|
|
|
2892 */
|
|
|
2893 long
|
|
|
2894 mch_getperm(char_u *name)
|
|
|
2895 {
|
|
|
2896 return (long)vim_chmod(name); /* get file mode */
|
|
|
2897 }
|
|
|
2898
|
|
|
2899 /*
|
|
|
2900 * set file permission for 'name' to 'perm'
|
|
|
2901 *
|
|
|
2902 * return FAIL for failure, OK otherwise
|
|
|
2903 */
|
|
|
2904 int
|
|
|
2905 mch_setperm(
|
|
|
2906 char_u *name,
|
|
|
2907 long perm)
|
|
|
2908 {
|
|
|
2909 perm |= FA_ARCH; /* file has changed, set archive bit */
|
|
|
2910 #if defined(__BORLANDC__) && (__BORLANDC__ > 0x410)
|
|
|
2911 return (_rtl_chmod((char *)name, 1, (int)perm) == -1 ? FAIL : OK);
|
|
|
2912 #else
|
|
|
2913 return (_chmod((char *)name, 1, (int)perm) == -1 ? FAIL : OK);
|
|
|
2914 #endif
|
|
|
2915 }
|
|
|
2916
|
|
|
2917 /*
|
|
|
2918 * Set hidden flag for "name".
|
|
|
2919 */
|
|
|
2920 void
|
|
|
2921 mch_hide(char_u *name)
|
|
|
2922 {
|
|
|
2923 /* DOS 6.2 share.exe causes "seek error on file write" errors when making
|
|
|
2924 * the swap file hidden. Thus don't do it. */
|
|
|
2925 }
|
|
|
2926
|
|
|
2927 /*
|
|
|
2928 * return TRUE if "name" is a directory
|
|
|
2929 * return FALSE if "name" is not a directory
|
|
|
2930 * return FALSE for error
|
|
|
2931 *
|
|
|
2932 * beware of a trailing (back)slash
|
|
|
2933 */
|
|
|
2934 int
|
|
|
2935 mch_isdir(char_u *name)
|
|
|
2936 {
|
|
|
2937 int f;
|
|
|
2938
|
|
|
2939 f = vim_chmod(name);
|
|
|
2940 if (f == -1)
|
|
|
2941 return FALSE; /* file does not exist at all */
|
|
|
2942 if ((f & FA_DIREC) == 0)
|
|
|
2943 return FALSE; /* not a directory */
|
|
|
2944 return TRUE;
|
|
|
2945 }
|
|
|
2946
|
|
|
2947 /*
|
|
|
2948 * Return 1 if "name" can be executed, 0 if not.
|
|
|
2949 * Return -1 if unknown.
|
|
|
2950 */
|
|
|
2951 int
|
|
|
2952 mch_can_exe(name)
|
|
|
2953 char_u *name;
|
|
|
2954 {
|
|
9
|
2955 char *p;
|
|
|
2956
|
|
|
2957 p = searchpath(name);
|
|
|
2958 if (p == NULL || mch_isdir(p))
|
|
|
2959 return FALSE;
|
|
|
2960 return TRUE;
|
|
7
|
2961 }
|
|
|
2962
|
|
|
2963 /*
|
|
|
2964 * Check what "name" is:
|
|
|
2965 * NODE_NORMAL: file or directory (or doesn't exist)
|
|
|
2966 * NODE_WRITABLE: writable device, socket, fifo, etc.
|
|
|
2967 * NODE_OTHER: non-writable things
|
|
|
2968 */
|
|
|
2969 int
|
|
|
2970 mch_nodetype(char_u *name)
|
|
|
2971 {
|
|
|
2972 if (STRICMP(name, "AUX") == 0
|
|
|
2973 || STRICMP(name, "CON") == 0
|
|
|
2974 || STRICMP(name, "CLOCK$") == 0
|
|
|
2975 || STRICMP(name, "NUL") == 0
|
|
|
2976 || STRICMP(name, "PRN") == 0
|
|
|
2977 || ((STRNICMP(name, "COM", 3) == 0
|
|
|
2978 || STRNICMP(name, "LPT", 3) == 0)
|
|
|
2979 && VIM_ISDIGIT(name[3])
|
|
|
2980 && name[4] == NUL))
|
|
|
2981 return NODE_WRITABLE;
|
|
|
2982 /* TODO: NODE_OTHER? */
|
|
|
2983 return NODE_NORMAL;
|
|
|
2984 }
|
|
|
2985
|
|
|
2986 /*
|
|
|
2987 * Get name of current directory into buffer 'buf' of length 'len' bytes.
|
|
|
2988 * Return OK for success, FAIL for failure.
|
|
|
2989 */
|
|
|
2990 int
|
|
|
2991 mch_dirname(
|
|
|
2992 char_u *buf,
|
|
|
2993 int len)
|
|
|
2994 {
|
|
|
2995 #ifdef DJGPP
|
|
|
2996 if (getcwd((char *)buf, len) == NULL)
|
|
|
2997 return FAIL;
|
|
|
2998 /* turn the '/'s returned by DJGPP into '\'s */
|
|
|
2999 slash_adjust(buf);
|
|
|
3000 return OK;
|
|
|
3001 #else
|
|
|
3002 return (getcwd((char *)buf, len) != NULL ? OK : FAIL);
|
|
|
3003 #endif
|
|
|
3004 }
|
|
|
3005
|
|
|
3006 /*
|
|
|
3007 * this version of remove is not scared by a readonly (backup) file
|
|
|
3008 *
|
|
|
3009 * returns -1 on error, 0 otherwise (just like remove())
|
|
|
3010 */
|
|
|
3011 int
|
|
|
3012 mch_remove(char_u *name)
|
|
|
3013 {
|
|
|
3014 (void)mch_setperm(name, 0); /* default permissions */
|
|
|
3015 return unlink((char *)name);
|
|
|
3016 }
|
|
|
3017
|
|
|
3018 /*
|
|
|
3019 * Special version of getenv(): Use uppercase name.
|
|
|
3020 */
|
|
|
3021 char_u *
|
|
|
3022 mch_getenv(char_u *name)
|
|
|
3023 {
|
|
|
3024 int i;
|
|
|
3025 #define MAXENVLEN 50
|
|
|
3026 char_u var_copy[MAXENVLEN + 1];
|
|
|
3027 char_u *p;
|
|
|
3028 char_u *res;
|
|
|
3029
|
|
|
3030 /*
|
|
|
3031 * Take a copy of the argument, and force it to upper case before passing
|
|
|
3032 * to getenv(). On DOS systems, getenv() doesn't like lower-case argument
|
|
|
3033 * (unlike Win32 et al.) If the name is too long to fit in var_copy[]
|
|
|
3034 * allocate memory.
|
|
|
3035 */
|
|
|
3036 if ((i = STRLEN(name)) > MAXENVLEN)
|
|
|
3037 p = alloc(i + 1);
|
|
|
3038 else
|
|
|
3039 p = var_copy;
|
|
|
3040 if (p == NULL)
|
|
|
3041 p = name; /* out of memory, fall back to unmodified name */
|
|
|
3042 else
|
|
|
3043 {
|
|
|
3044 for (i = 0; name[i] != NUL; ++i)
|
|
|
3045 p[i] = toupper(name[i]);
|
|
|
3046 p[i] = NUL;
|
|
|
3047 }
|
|
|
3048
|
|
|
3049 res = (char_u *)getenv((char *)p);
|
|
|
3050
|
|
|
3051 if (p != var_copy && p != name)
|
|
|
3052 vim_free(p);
|
|
|
3053
|
|
|
3054 return res;
|
|
|
3055 }
|
|
|
3056
|
|
|
3057 /*
|
|
|
3058 * Insert user name in s[len].
|
|
|
3059 */
|
|
|
3060 int
|
|
|
3061 mch_get_user_name(
|
|
|
3062 char_u *s,
|
|
|
3063 int len)
|
|
|
3064 {
|
|
|
3065 *s = NUL;
|
|
|
3066 return FAIL;
|
|
|
3067 }
|
|
|
3068
|
|
|
3069 /*
|
|
|
3070 * Insert host name is s[len].
|
|
|
3071 */
|
|
|
3072 void
|
|
|
3073 mch_get_host_name(
|
|
|
3074 char_u *s,
|
|
|
3075 int len)
|
|
|
3076 {
|
|
|
3077 #ifdef DJGPP
|
|
418
|
3078 vim_strncpy(s, "PC (32 bits Vim)", len - 1);
|
|
7
|
3079 #else
|
|
418
|
3080 vim_strncpy(s, "PC (16 bits Vim)", len - 1);
|
|
7
|
3081 #endif
|
|
|
3082 }
|
