1 | /* $Header: /afs/dev.mit.edu/source/repository/third/tcsh/ed.inputl.c,v 1.1.1.2 1998-10-03 21:09:46 danw Exp $ */ |
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2 | /* |
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3 | * ed.inputl.c: Input line handling. |
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4 | */ |
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5 | /*- |
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6 | * Copyright (c) 1980, 1991 The Regents of the University of California. |
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7 | * All rights reserved. |
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8 | * |
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9 | * Redistribution and use in source and binary forms, with or without |
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10 | * modification, are permitted provided that the following conditions |
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11 | * are met: |
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12 | * 1. Redistributions of source code must retain the above copyright |
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13 | * notice, this list of conditions and the following disclaimer. |
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14 | * 2. Redistributions in binary form must reproduce the above copyright |
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15 | * notice, this list of conditions and the following disclaimer in the |
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16 | * documentation and/or other materials provided with the distribution. |
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17 | * 3. All advertising materials mentioning features or use of this software |
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18 | * must display the following acknowledgement: |
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19 | * This product includes software developed by the University of |
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20 | * California, Berkeley and its contributors. |
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21 | * 4. Neither the name of the University nor the names of its contributors |
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22 | * may be used to endorse or promote products derived from this software |
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23 | * without specific prior written permission. |
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24 | * |
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25 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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31 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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32 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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33 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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34 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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35 | * SUCH DAMAGE. |
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36 | */ |
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37 | #include "sh.h" |
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38 | |
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39 | RCSID("$Id: ed.inputl.c,v 1.1.1.2 1998-10-03 21:09:46 danw Exp $") |
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40 | |
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41 | #include "ed.h" |
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42 | #include "ed.defns.h" /* for the function names */ |
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43 | #include "tw.h" /* for twenex stuff */ |
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44 | |
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45 | #define OKCMD (INBUFSIZE+INBUFSIZE) |
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46 | |
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47 | /* ed.inputl -- routines to get a single line from the input. */ |
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48 | |
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49 | extern bool tellwhat; |
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50 | extern bool MapsAreInited; |
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51 | extern bool Tty_raw_mode; |
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52 | |
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53 | /* mismatched first character */ |
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54 | static Char mismatch[] = |
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55 | {'!', '^' , '\\', '-', '%', '\0', '"', '\'', '`', '\0' }; |
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56 | |
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57 | static int Repair __P((void)); |
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58 | static int GetNextCommand __P((KEYCMD *, Char *)); |
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59 | static int SpellLine __P((int)); |
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60 | static int CompleteLine __P((void)); |
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61 | static void RunCommand __P((Char *)); |
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62 | static void doeval1 __P((Char **)); |
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63 | |
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64 | static bool rotate = 0; |
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65 | |
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66 | |
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67 | static int |
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68 | Repair() |
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69 | { |
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70 | if (NeedsRedraw) { |
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71 | ClearLines(); |
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72 | ClearDisp(); |
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73 | NeedsRedraw = 0; |
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74 | } |
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75 | Refresh(); |
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76 | Argument = 1; |
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77 | DoingArg = 0; |
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78 | curchoice = -1; |
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79 | return LastChar - InputBuf; |
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80 | } |
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81 | |
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82 | /* CCRETVAL */ |
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83 | int |
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84 | Inputl() |
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85 | { |
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86 | CCRETVAL retval; |
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87 | KEYCMD cmdnum = 0; |
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88 | extern KEYCMD NumFuns; |
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89 | unsigned char tch; /* the place where read() goes */ |
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90 | Char ch; |
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91 | int num; /* how many chars we have read at NL */ |
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92 | int expnum; |
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93 | struct varent *crct = inheredoc ? NULL : adrof(STRcorrect); |
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94 | struct varent *autol = adrof(STRautolist); |
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95 | struct varent *matchbeep = adrof(STRmatchbeep); |
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96 | struct varent *imode = adrof(STRinputmode); |
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97 | Char *SaveChar, *CorrChar; |
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98 | Char Origin[INBUFSIZE], Change[INBUFSIZE]; |
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99 | int matchval; /* from tenematch() */ |
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100 | COMMAND fn; |
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101 | int curlen = 0; |
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102 | int newlen; |
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103 | int idx; |
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104 | |
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105 | if (!MapsAreInited) /* double extra just in case */ |
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106 | ed_InitMaps(); |
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107 | |
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108 | ClearDisp(); /* reset the display stuff */ |
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109 | ResetInLine(0); /* reset the input pointers */ |
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110 | if (GettingInput) |
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111 | MacroLvl = -1; /* editor was interrupted during input */ |
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112 | |
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113 | if (imode) { |
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114 | if (!Strcmp(*(imode->vec), STRinsert)) |
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115 | inputmode = MODE_INSERT; |
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116 | else if (!Strcmp(*(imode->vec), STRoverwrite)) |
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117 | inputmode = MODE_REPLACE; |
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118 | } |
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119 | |
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120 | #if defined(FIONREAD) && !defined(OREO) |
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121 | if (!Tty_raw_mode && MacroLvl < 0) { |
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122 | # ifdef SUNOS4 |
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123 | long chrs = 0; |
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124 | # else /* !SUNOS4 */ |
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125 | /* |
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126 | * *Everyone* else has an int, but SunOS wants long! |
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127 | * This breaks where int != long (alpha) |
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128 | */ |
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129 | int chrs = 0; |
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130 | # endif /* SUNOS4 */ |
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131 | |
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132 | (void) ioctl(SHIN, FIONREAD, (ioctl_t) & chrs); |
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133 | if (chrs == 0) { |
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134 | if (Rawmode() < 0) |
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135 | return 0; |
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136 | } |
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137 | } |
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138 | #endif /* FIONREAD && !OREO */ |
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139 | |
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140 | GettingInput = 1; |
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141 | NeedsRedraw = 0; |
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142 | |
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143 | if (tellwhat) { |
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144 | copyn(InputBuf, WhichBuf, INBUFSIZE); |
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145 | LastChar = InputBuf + (LastWhich - WhichBuf); |
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146 | Cursor = InputBuf + (CursWhich - WhichBuf); |
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147 | tellwhat = 0; |
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148 | Hist_num = HistWhich; |
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149 | } |
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150 | if (Expand) { |
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151 | (void) e_up_hist(0); |
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152 | Expand = 0; |
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153 | } |
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154 | Refresh(); /* print the prompt */ |
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155 | |
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156 | for (num = OKCMD; num == OKCMD;) { /* while still editing this line */ |
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157 | #ifdef DEBUG_EDIT |
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158 | if (Cursor > LastChar) |
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159 | xprintf("Cursor > LastChar\r\n"); |
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160 | if (Cursor < InputBuf) |
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161 | xprintf("Cursor < InputBuf\r\n"); |
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162 | if (Cursor > InputLim) |
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163 | xprintf("Cursor > InputLim\r\n"); |
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164 | if (LastChar > InputLim) |
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165 | xprintf("LastChar > InputLim\r\n"); |
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166 | if (InputLim != &InputBuf[INBUFSIZE - 2]) |
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167 | xprintf("InputLim != &InputBuf[INBUFSIZE-2]\r\n"); |
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168 | if ((!DoingArg) && (Argument != 1)) |
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169 | xprintf("(!DoingArg) && (Argument != 1)\r\n"); |
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170 | if (CcKeyMap[0] == 0) |
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171 | xprintf("CcKeyMap[0] == 0 (maybe not inited)\r\n"); |
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172 | #endif |
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173 | |
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174 | /* if EOF or error */ |
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175 | if ((num = GetNextCommand(&cmdnum, &ch)) != OKCMD) { |
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176 | break; |
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177 | } |
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178 | |
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179 | if (cmdnum >= NumFuns) {/* BUG CHECK command */ |
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180 | #ifdef DEBUG_EDIT |
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181 | xprintf(CGETS(6, 1, "ERROR: illegal command from key 0%o\r\n"), ch); |
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182 | #endif |
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183 | continue; /* try again */ |
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184 | } |
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185 | |
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186 | /* now do the real command */ |
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187 | retval = (*CcFuncTbl[cmdnum]) (ch); |
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188 | |
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189 | /* save the last command here */ |
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190 | LastCmd = cmdnum; |
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191 | |
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192 | /* make sure fn is initialized */ |
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193 | fn = (retval == CC_COMPLETE_ALL) ? LIST_ALL : LIST; |
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194 | |
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195 | /* use any return value */ |
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196 | switch (retval) { |
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197 | |
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198 | case CC_REFRESH: |
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199 | Refresh(); |
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200 | /*FALLTHROUGH*/ |
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201 | case CC_NORM: /* normal char */ |
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202 | Argument = 1; |
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203 | DoingArg = 0; |
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204 | /*FALLTHROUGH*/ |
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205 | case CC_ARGHACK: /* Suggested by Rich Salz */ |
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206 | /* <rsalz@pineapple.bbn.com> */ |
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207 | curchoice = -1; |
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208 | curlen = LastChar - InputBuf; |
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209 | break; /* keep going... */ |
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210 | |
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211 | case CC_EOF: /* end of file typed */ |
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212 | curchoice = -1; |
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213 | curlen = LastChar - InputBuf; |
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214 | num = 0; |
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215 | break; |
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216 | |
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217 | case CC_WHICH: /* tell what this command does */ |
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218 | tellwhat = 1; |
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219 | copyn(WhichBuf, InputBuf, INBUFSIZE); |
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220 | LastWhich = WhichBuf + (LastChar - InputBuf); |
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221 | CursWhich = WhichBuf + (Cursor - InputBuf); |
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222 | *LastChar++ = '\n'; /* for the benifit of CSH */ |
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223 | HistWhich = Hist_num; |
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224 | Hist_num = 0; /* for the history commands */ |
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225 | num = LastChar - InputBuf; /* number characters read */ |
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226 | break; |
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227 | |
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228 | case CC_NEWLINE: /* normal end of line */ |
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229 | curlen = 0; |
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230 | curchoice = -1; |
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231 | matchval = 1; |
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232 | if (crct && (!Strcmp(*(crct->vec), STRcmd) || |
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233 | !Strcmp(*(crct->vec), STRall))) { |
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234 | PastBottom(); |
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235 | copyn(Origin, InputBuf, INBUFSIZE); |
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236 | SaveChar = LastChar; |
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237 | if (SpellLine(!Strcmp(*(crct->vec), STRcmd)) == 1) { |
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238 | PastBottom(); |
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239 | copyn(Change, InputBuf, INBUFSIZE); |
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240 | *Strchr(Change, '\n') = '\0'; |
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241 | CorrChar = LastChar; /* Save the corrected end */ |
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242 | LastChar = InputBuf; /* Null the current line */ |
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243 | SoundBeep(); |
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244 | printprompt(2, short2str(Change)); |
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245 | Refresh(); |
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246 | if (read(SHIN, (char *) &tch, 1) < 0) |
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247 | #ifdef convex |
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248 | /* |
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249 | * need to print error message in case file |
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250 | * is migrated |
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251 | */ |
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252 | if (errno && errno != EINTR) |
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253 | stderror(ERR_SYSTEM, progname, strerror(errno)); |
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254 | #else |
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255 | break; |
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256 | #endif |
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257 | ch = tch; |
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258 | if (ch == 'y' || ch == ' ') { |
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259 | LastChar = CorrChar; /* Restore the corrected end */ |
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260 | xprintf(CGETS(6, 2, "yes\n")); |
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261 | } |
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262 | else { |
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263 | copyn(InputBuf, Origin, INBUFSIZE); |
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264 | LastChar = SaveChar; |
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265 | if (ch == 'e') { |
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266 | xprintf(CGETS(6, 3, "edit\n")); |
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267 | *LastChar-- = '\0'; |
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268 | Cursor = LastChar; |
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269 | printprompt(3, NULL); |
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270 | ClearLines(); |
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271 | ClearDisp(); |
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272 | Refresh(); |
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273 | break; |
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274 | } |
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275 | else if (ch == 'a') { |
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276 | xprintf(CGETS(6, 4, "abort\n")); |
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277 | LastChar = InputBuf; /* Null the current line */ |
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278 | Cursor = LastChar; |
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279 | printprompt(0, NULL); |
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280 | Refresh(); |
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281 | break; |
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282 | } |
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283 | xprintf(CGETS(6, 5, "no\n")); |
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284 | } |
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285 | flush(); |
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286 | } |
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287 | } else if (crct && !Strcmp(*(crct->vec), STRcomplete)) { |
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288 | if (LastChar > InputBuf && LastChar[-1] == '\n') { |
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289 | LastChar[-1] = '\0'; |
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290 | LastChar--; |
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291 | Cursor = LastChar; |
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292 | } |
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293 | match_unique_match = 1; /* match unique matches */ |
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294 | matchval = CompleteLine(); |
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295 | match_unique_match = 0; |
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296 | curlen = LastChar - InputBuf; |
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297 | if (matchval != 1) { |
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298 | PastBottom(); |
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299 | } |
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300 | if (matchval == 0) { |
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301 | xprintf(CGETS(6, 6, "No matching command\n")); |
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302 | } else if (matchval == 2) { |
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303 | xprintf(CGETS(6, 7, "Ambiguous command\n")); |
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304 | } |
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305 | if (NeedsRedraw) { |
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306 | ClearLines(); |
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307 | ClearDisp(); |
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308 | NeedsRedraw = 0; |
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309 | } |
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310 | Refresh(); |
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311 | Argument = 1; |
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312 | DoingArg = 0; |
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313 | if (matchval == 1) { |
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314 | PastBottom(); |
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315 | *LastChar++ = '\n'; |
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316 | *LastChar = '\0'; |
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317 | } |
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318 | curlen = LastChar - InputBuf; |
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319 | } |
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320 | else |
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321 | PastBottom(); |
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322 | |
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323 | if (matchval == 1) { |
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324 | tellwhat = 0; /* just in case */ |
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325 | Hist_num = 0; /* for the history commands */ |
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326 | /* return the number of chars read */ |
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327 | num = LastChar - InputBuf; |
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328 | /* |
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329 | * For continuation lines, we set the prompt to prompt 2 |
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330 | */ |
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331 | printprompt(1, NULL); |
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332 | } |
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333 | break; |
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334 | |
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335 | case CC_CORRECT: |
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336 | if (tenematch(InputBuf, Cursor - InputBuf, SPELL) < 0) |
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337 | SoundBeep(); /* Beep = No match/ambiguous */ |
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338 | curlen = Repair(); |
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339 | break; |
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340 | |
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341 | case CC_CORRECT_L: |
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342 | if (SpellLine(FALSE) < 0) |
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343 | SoundBeep(); /* Beep = No match/ambiguous */ |
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344 | curlen = Repair(); |
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345 | break; |
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346 | |
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347 | |
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348 | case CC_COMPLETE: |
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349 | case CC_COMPLETE_ALL: |
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350 | case CC_COMPLETE_FWD: |
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351 | case CC_COMPLETE_BACK: |
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352 | switch (retval) { |
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353 | case CC_COMPLETE: |
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354 | fn = RECOGNIZE; |
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355 | curlen = LastChar - InputBuf; |
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356 | curchoice = -1; |
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357 | rotate = 0; |
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358 | break; |
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359 | case CC_COMPLETE_ALL: |
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360 | fn = RECOGNIZE_ALL; |
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361 | curlen = LastChar - InputBuf; |
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362 | curchoice = -1; |
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363 | rotate = 0; |
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364 | break; |
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365 | case CC_COMPLETE_FWD: |
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366 | fn = RECOGNIZE_SCROLL; |
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367 | curchoice++; |
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368 | rotate = 1; |
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369 | break; |
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370 | case CC_COMPLETE_BACK: |
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371 | fn = RECOGNIZE_SCROLL; |
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372 | curchoice--; |
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373 | rotate = 1; |
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374 | break; |
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375 | default: |
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376 | abort(); |
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377 | } |
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378 | if (InputBuf[curlen] && rotate) { |
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379 | newlen = LastChar - InputBuf; |
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380 | for (idx = (Cursor - InputBuf); |
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381 | idx <= newlen; idx++) |
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382 | InputBuf[idx - newlen + curlen] = |
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383 | InputBuf[idx]; |
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384 | LastChar = InputBuf + curlen; |
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385 | Cursor = Cursor - newlen + curlen; |
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386 | } |
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387 | curlen = LastChar - InputBuf; |
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388 | |
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389 | |
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390 | if (adrof(STRautoexpand)) |
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391 | (void) e_expand_history(0); |
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392 | /* |
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393 | * Modified by Martin Boyer (gamin@ireq-robot.hydro.qc.ca): |
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394 | * A separate variable now controls beeping after |
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395 | * completion, independently of autolisting. |
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396 | */ |
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397 | expnum = Cursor - InputBuf; |
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398 | switch (matchval = tenematch(InputBuf, Cursor-InputBuf, fn)){ |
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399 | case 1: |
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400 | if (non_unique_match && matchbeep && |
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401 | (Strcmp(*(matchbeep->vec), STRnotunique) == 0)) |
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402 | SoundBeep(); |
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403 | break; |
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404 | case 0: |
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405 | if (matchbeep) { |
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406 | if (Strcmp(*(matchbeep->vec), STRnomatch) == 0 || |
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407 | Strcmp(*(matchbeep->vec), STRambiguous) == 0 || |
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408 | Strcmp(*(matchbeep->vec), STRnotunique) == 0) |
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409 | SoundBeep(); |
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410 | } |
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411 | else |
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412 | SoundBeep(); |
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413 | break; |
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414 | default: |
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415 | if (matchval < 0) { /* Error from tenematch */ |
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416 | curchoice = -1; |
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417 | SoundBeep(); |
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418 | break; |
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419 | } |
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420 | if (matchbeep) { |
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421 | if ((Strcmp(*(matchbeep->vec), STRambiguous) == 0 || |
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422 | Strcmp(*(matchbeep->vec), STRnotunique) == 0)) |
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423 | SoundBeep(); |
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424 | } |
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425 | else |
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426 | SoundBeep(); |
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427 | /* |
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428 | * Addition by David C Lawrence <tale@pawl.rpi.edu>: If an |
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429 | * attempted completion is ambiguous, list the choices. |
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430 | * (PWP: this is the best feature addition to tcsh I have |
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431 | * seen in many months.) |
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432 | */ |
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433 | if (autol && (Strcmp(*(autol->vec), STRambiguous) != 0 || |
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434 | expnum == Cursor - InputBuf)) { |
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435 | PastBottom(); |
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436 | fn = (retval == CC_COMPLETE_ALL) ? LIST_ALL : LIST; |
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437 | (void) tenematch(InputBuf, Cursor-InputBuf, fn); |
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438 | } |
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439 | break; |
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440 | } |
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441 | if (NeedsRedraw) { |
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442 | PastBottom(); |
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443 | ClearLines(); |
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444 | ClearDisp(); |
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445 | NeedsRedraw = 0; |
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446 | } |
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447 | Refresh(); |
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448 | Argument = 1; |
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449 | DoingArg = 0; |
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450 | break; |
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451 | |
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452 | case CC_LIST_CHOICES: |
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453 | case CC_LIST_ALL: |
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454 | if (InputBuf[curlen] && rotate) { |
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455 | newlen = LastChar - InputBuf; |
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456 | for (idx = (Cursor - InputBuf); |
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457 | idx <= newlen; idx++) |
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458 | InputBuf[idx - newlen + curlen] = |
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459 | InputBuf[idx]; |
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460 | LastChar = InputBuf + curlen; |
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461 | Cursor = Cursor - newlen + curlen; |
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462 | } |
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463 | curlen = LastChar - InputBuf; |
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464 | if (curchoice >= 0) |
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465 | curchoice--; |
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466 | |
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467 | fn = (retval == CC_LIST_ALL) ? LIST_ALL : LIST; |
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468 | /* should catch ^C here... */ |
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469 | if (tenematch(InputBuf, Cursor - InputBuf, fn) < 0) |
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470 | SoundBeep(); |
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471 | Refresh(); |
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472 | Argument = 1; |
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473 | DoingArg = 0; |
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474 | break; |
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475 | |
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476 | |
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477 | case CC_LIST_GLOB: |
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478 | if (tenematch(InputBuf, Cursor - InputBuf, GLOB) < 0) |
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479 | SoundBeep(); |
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480 | curlen = Repair(); |
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481 | break; |
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482 | |
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483 | case CC_EXPAND_GLOB: |
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484 | if (tenematch(InputBuf, Cursor - InputBuf, GLOB_EXPAND) <= 0) |
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485 | SoundBeep(); /* Beep = No match */ |
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486 | curlen = Repair(); |
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487 | break; |
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488 | |
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489 | case CC_NORMALIZE_PATH: |
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490 | if (tenematch(InputBuf, Cursor - InputBuf, PATH_NORMALIZE) <= 0) |
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491 | SoundBeep(); /* Beep = No match */ |
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492 | curlen = Repair(); |
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493 | break; |
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494 | |
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495 | case CC_EXPAND_VARS: |
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496 | if (tenematch(InputBuf, Cursor - InputBuf, VARS_EXPAND) <= 0) |
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497 | SoundBeep(); /* Beep = No match */ |
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498 | curlen = Repair(); |
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499 | break; |
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500 | |
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501 | case CC_NORMALIZE_COMMAND: |
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502 | if (tenematch(InputBuf, Cursor - InputBuf, COMMAND_NORMALIZE) <= 0) |
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503 | SoundBeep(); /* Beep = No match */ |
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504 | curlen = Repair(); |
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505 | break; |
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506 | |
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507 | case CC_HELPME: |
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508 | xputchar('\n'); |
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509 | /* should catch ^C here... */ |
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510 | (void) tenematch(InputBuf, LastChar - InputBuf, PRINT_HELP); |
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511 | Refresh(); |
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512 | Argument = 1; |
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513 | DoingArg = 0; |
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514 | curchoice = -1; |
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515 | curlen = LastChar - InputBuf; |
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516 | break; |
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517 | |
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518 | case CC_FATAL: /* fatal error, reset to known state */ |
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519 | #ifdef DEBUG_EDIT |
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520 | xprintf(CGETS(7, 8, "*** editor fatal ERROR ***\r\n\n")); |
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521 | #endif /* DEBUG_EDIT */ |
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522 | /* put (real) cursor in a known place */ |
---|
523 | ClearDisp(); /* reset the display stuff */ |
---|
524 | ResetInLine(1); /* reset the input pointers */ |
---|
525 | Refresh(); /* print the prompt again */ |
---|
526 | Argument = 1; |
---|
527 | DoingArg = 0; |
---|
528 | curchoice = -1; |
---|
529 | curlen = LastChar - InputBuf; |
---|
530 | break; |
---|
531 | |
---|
532 | case CC_ERROR: |
---|
533 | default: /* functions we don't know about */ |
---|
534 | DoingArg = 0; |
---|
535 | Argument = 1; |
---|
536 | SoundBeep(); |
---|
537 | flush(); |
---|
538 | curchoice = -1; |
---|
539 | curlen = LastChar - InputBuf; |
---|
540 | break; |
---|
541 | } |
---|
542 | } |
---|
543 | (void) Cookedmode(); /* make sure the tty is set up correctly */ |
---|
544 | GettingInput = 0; |
---|
545 | flush(); /* flush any buffered output */ |
---|
546 | return num; |
---|
547 | } |
---|
548 | |
---|
549 | void |
---|
550 | PushMacro(str) |
---|
551 | Char *str; |
---|
552 | { |
---|
553 | if (str != NULL && MacroLvl + 1 < MAXMACROLEVELS) { |
---|
554 | MacroLvl++; |
---|
555 | KeyMacro[MacroLvl] = str; |
---|
556 | } |
---|
557 | else { |
---|
558 | SoundBeep(); |
---|
559 | flush(); |
---|
560 | } |
---|
561 | } |
---|
562 | |
---|
563 | /* |
---|
564 | * Like eval, only using the current file descriptors |
---|
565 | */ |
---|
566 | static Char **gv = NULL, **gav = NULL; |
---|
567 | |
---|
568 | static void |
---|
569 | doeval1(v) |
---|
570 | Char **v; |
---|
571 | { |
---|
572 | Char **oevalvec; |
---|
573 | Char *oevalp; |
---|
574 | int my_reenter; |
---|
575 | Char **savegv; |
---|
576 | jmp_buf_t osetexit; |
---|
577 | |
---|
578 | oevalvec = evalvec; |
---|
579 | oevalp = evalp; |
---|
580 | savegv = gv; |
---|
581 | gav = v; |
---|
582 | |
---|
583 | |
---|
584 | gflag = 0, tglob(gav); |
---|
585 | if (gflag) { |
---|
586 | gv = gav = globall(gav); |
---|
587 | gargv = 0; |
---|
588 | if (gav == 0) |
---|
589 | stderror(ERR_NOMATCH); |
---|
590 | gav = copyblk(gav); |
---|
591 | } |
---|
592 | else { |
---|
593 | gv = NULL; |
---|
594 | gav = copyblk(gav); |
---|
595 | trim(gav); |
---|
596 | } |
---|
597 | |
---|
598 | getexit(osetexit); |
---|
599 | |
---|
600 | /* PWP: setjmp/longjmp bugfix for optimizing compilers */ |
---|
601 | #ifdef cray |
---|
602 | my_reenter = 1; /* assume non-zero return val */ |
---|
603 | if (setexit() == 0) { |
---|
604 | my_reenter = 0; /* Oh well, we were wrong */ |
---|
605 | #else /* !cray */ |
---|
606 | if ((my_reenter = setexit()) == 0) { |
---|
607 | #endif /* cray */ |
---|
608 | evalvec = gav; |
---|
609 | evalp = 0; |
---|
610 | process(0); |
---|
611 | } |
---|
612 | |
---|
613 | evalvec = oevalvec; |
---|
614 | evalp = oevalp; |
---|
615 | doneinp = 0; |
---|
616 | |
---|
617 | if (gv) |
---|
618 | blkfree(gv); |
---|
619 | |
---|
620 | gv = savegv; |
---|
621 | resexit(osetexit); |
---|
622 | if (my_reenter) |
---|
623 | stderror(ERR_SILENT); |
---|
624 | } |
---|
625 | |
---|
626 | static void |
---|
627 | RunCommand(str) |
---|
628 | Char *str; |
---|
629 | { |
---|
630 | Char *cmd[2]; |
---|
631 | |
---|
632 | xputchar('\n'); /* Start on a clean line */ |
---|
633 | |
---|
634 | cmd[0] = str; |
---|
635 | cmd[1] = NULL; |
---|
636 | |
---|
637 | (void) Cookedmode(); |
---|
638 | GettingInput = 0; |
---|
639 | |
---|
640 | doeval1(cmd); |
---|
641 | |
---|
642 | (void) Rawmode(); |
---|
643 | GettingInput = 1; |
---|
644 | |
---|
645 | ClearLines(); |
---|
646 | ClearDisp(); |
---|
647 | NeedsRedraw = 0; |
---|
648 | Refresh(); |
---|
649 | } |
---|
650 | |
---|
651 | static int |
---|
652 | GetNextCommand(cmdnum, ch) |
---|
653 | KEYCMD *cmdnum; |
---|
654 | register Char *ch; |
---|
655 | { |
---|
656 | KEYCMD cmd = 0; |
---|
657 | int num; |
---|
658 | |
---|
659 | while (cmd == 0 || cmd == F_XKEY) { |
---|
660 | if ((num = GetNextChar(ch)) != 1) { /* if EOF or error */ |
---|
661 | return num; |
---|
662 | } |
---|
663 | #ifdef KANJI |
---|
664 | if (!adrof(STRnokanji) && (*ch & META)) { |
---|
665 | MetaNext = 0; |
---|
666 | cmd = F_INSERT; |
---|
667 | break; |
---|
668 | } |
---|
669 | else |
---|
670 | #endif /* KANJI */ |
---|
671 | if (MetaNext) { |
---|
672 | MetaNext = 0; |
---|
673 | *ch |= META; |
---|
674 | } |
---|
675 | /* XXX: This needs to be fixed so that we don't just truncate |
---|
676 | * the character, we unquote it. |
---|
677 | */ |
---|
678 | if (*ch < NT_NUM_KEYS) |
---|
679 | cmd = CurrentKeyMap[*ch]; |
---|
680 | else |
---|
681 | cmd = CurrentKeyMap[(unsigned char) *ch]; |
---|
682 | if (cmd == F_XKEY) { |
---|
683 | XmapVal val; |
---|
684 | CStr cstr; |
---|
685 | cstr.buf = ch; |
---|
686 | cstr.len = Strlen(ch); |
---|
687 | switch (GetXkey(&cstr, &val)) { |
---|
688 | case XK_CMD: |
---|
689 | cmd = val.cmd; |
---|
690 | break; |
---|
691 | case XK_STR: |
---|
692 | PushMacro(val.str.buf); |
---|
693 | break; |
---|
694 | case XK_EXE: |
---|
695 | RunCommand(val.str.buf); |
---|
696 | break; |
---|
697 | default: |
---|
698 | abort(); |
---|
699 | break; |
---|
700 | } |
---|
701 | } |
---|
702 | if (!AltKeyMap) |
---|
703 | CurrentKeyMap = CcKeyMap; |
---|
704 | } |
---|
705 | *cmdnum = cmd; |
---|
706 | return OKCMD; |
---|
707 | } |
---|
708 | |
---|
709 | int |
---|
710 | GetNextChar(cp) |
---|
711 | register Char *cp; |
---|
712 | { |
---|
713 | register int num_read; |
---|
714 | int tried = 0; |
---|
715 | unsigned char tcp; |
---|
716 | |
---|
717 | for (;;) { |
---|
718 | if (MacroLvl < 0) { |
---|
719 | if (!Load_input_line()) |
---|
720 | break; |
---|
721 | } |
---|
722 | if (*KeyMacro[MacroLvl] == 0) { |
---|
723 | MacroLvl--; |
---|
724 | continue; |
---|
725 | } |
---|
726 | *cp = *KeyMacro[MacroLvl]++ & CHAR; |
---|
727 | if (*KeyMacro[MacroLvl] == 0) { /* Needed for QuoteMode On */ |
---|
728 | MacroLvl--; |
---|
729 | } |
---|
730 | return (1); |
---|
731 | } |
---|
732 | |
---|
733 | if (Rawmode() < 0) /* make sure the tty is set up correctly */ |
---|
734 | return 0; /* oops: SHIN was closed */ |
---|
735 | |
---|
736 | #ifdef WINNT |
---|
737 | __nt_want_vcode = 1; |
---|
738 | #endif /* WINNT */ |
---|
739 | while ((num_read = read(SHIN, (char *) &tcp, 1)) == -1) { |
---|
740 | if (errno == EINTR) |
---|
741 | continue; |
---|
742 | if (!tried && fixio(SHIN, errno) != -1) |
---|
743 | tried = 1; |
---|
744 | else { |
---|
745 | #ifdef convex |
---|
746 | /* need to print error message in case the file is migrated */ |
---|
747 | if (errno != EINTR) |
---|
748 | stderror(ERR_SYSTEM, progname, strerror(errno)); |
---|
749 | #endif /* convex */ |
---|
750 | #ifdef WINNT |
---|
751 | __nt_want_vcode = 0; |
---|
752 | #endif /* WINNT */ |
---|
753 | *cp = '\0'; |
---|
754 | return -1; |
---|
755 | } |
---|
756 | } |
---|
757 | #ifdef WINNT |
---|
758 | if (__nt_want_vcode == 2) |
---|
759 | *cp = __nt_vcode; |
---|
760 | else |
---|
761 | *cp = tcp; |
---|
762 | __nt_want_vcode = 0; |
---|
763 | #else |
---|
764 | *cp = tcp; |
---|
765 | #endif /* WINNT */ |
---|
766 | return num_read; |
---|
767 | } |
---|
768 | |
---|
769 | /* |
---|
770 | * SpellLine - do spelling correction on the entire command line |
---|
771 | * (which may have trailing newline). |
---|
772 | * If cmdonly is set, only check spelling of command words. |
---|
773 | * Return value: |
---|
774 | * -1: Something was incorrectible, and nothing was corrected |
---|
775 | * 0: Everything was correct |
---|
776 | * 1: Something was corrected |
---|
777 | */ |
---|
778 | static int |
---|
779 | SpellLine(cmdonly) |
---|
780 | int cmdonly; |
---|
781 | { |
---|
782 | int endflag, matchval; |
---|
783 | Char *argptr, *OldCursor, *OldLastChar; |
---|
784 | |
---|
785 | OldLastChar = LastChar; |
---|
786 | OldCursor = Cursor; |
---|
787 | argptr = InputBuf; |
---|
788 | endflag = 1; |
---|
789 | matchval = 0; |
---|
790 | do { |
---|
791 | while (ismetahash(*argptr) || iscmdmeta(*argptr)) |
---|
792 | argptr++; |
---|
793 | for (Cursor = argptr; |
---|
794 | *Cursor != '\0' && ((Cursor != argptr && Cursor[-1] == '\\') || |
---|
795 | (!ismetahash(*Cursor) && !iscmdmeta(*Cursor))); |
---|
796 | Cursor++) |
---|
797 | continue; |
---|
798 | if (*Cursor == '\0') { |
---|
799 | Cursor = LastChar; |
---|
800 | if (LastChar[-1] == '\n') |
---|
801 | Cursor--; |
---|
802 | endflag = 0; |
---|
803 | } |
---|
804 | /* Obey current history character settings */ |
---|
805 | mismatch[0] = HIST; |
---|
806 | mismatch[1] = HISTSUB; |
---|
807 | if (!Strchr(mismatch, *argptr) && |
---|
808 | (!cmdonly || starting_a_command(argptr, InputBuf))) { |
---|
809 | #ifdef WINNT |
---|
810 | /* |
---|
811 | * This hack avoids correcting drive letter changes |
---|
812 | */ |
---|
813 | if((Cursor - InputBuf) != 2 || (char)InputBuf[1] != ':') |
---|
814 | #endif /* WINNT */ |
---|
815 | switch (tenematch(InputBuf, Cursor - InputBuf, SPELL)) { |
---|
816 | case 1: /* corrected */ |
---|
817 | matchval = 1; |
---|
818 | break; |
---|
819 | case -1: /* couldn't be corrected */ |
---|
820 | if (!matchval) |
---|
821 | matchval = -1; |
---|
822 | break; |
---|
823 | default: /* was correct */ |
---|
824 | break; |
---|
825 | } |
---|
826 | |
---|
827 | if (LastChar != OldLastChar) { |
---|
828 | if (argptr < OldCursor) |
---|
829 | OldCursor += (LastChar - OldLastChar); |
---|
830 | OldLastChar = LastChar; |
---|
831 | } |
---|
832 | } |
---|
833 | argptr = Cursor; |
---|
834 | } while (endflag); |
---|
835 | Cursor = OldCursor; |
---|
836 | return matchval; |
---|
837 | } |
---|
838 | |
---|
839 | /* |
---|
840 | * CompleteLine - do command completion on the entire command line |
---|
841 | * (which may have trailing newline). |
---|
842 | * Return value: |
---|
843 | * 0: No command matched or failure |
---|
844 | * 1: One command matched |
---|
845 | * 2: Several commands matched |
---|
846 | */ |
---|
847 | static int |
---|
848 | CompleteLine() |
---|
849 | { |
---|
850 | int endflag, tmatch; |
---|
851 | Char *argptr, *OldCursor, *OldLastChar; |
---|
852 | |
---|
853 | OldLastChar = LastChar; |
---|
854 | OldCursor = Cursor; |
---|
855 | argptr = InputBuf; |
---|
856 | endflag = 1; |
---|
857 | do { |
---|
858 | while (ismetahash(*argptr) || iscmdmeta(*argptr)) |
---|
859 | argptr++; |
---|
860 | for (Cursor = argptr; |
---|
861 | *Cursor != '\0' && ((Cursor != argptr && Cursor[-1] == '\\') || |
---|
862 | (!ismetahash(*Cursor) && !iscmdmeta(*Cursor))); |
---|
863 | Cursor++) |
---|
864 | continue; |
---|
865 | if (*Cursor == '\0') { |
---|
866 | Cursor = LastChar; |
---|
867 | if (LastChar[-1] == '\n') |
---|
868 | Cursor--; |
---|
869 | endflag = 0; |
---|
870 | } |
---|
871 | if (!Strchr(mismatch, *argptr) && starting_a_command(argptr, InputBuf)) { |
---|
872 | tmatch = tenematch(InputBuf, Cursor - InputBuf, RECOGNIZE); |
---|
873 | if (tmatch <= 0) { |
---|
874 | return 0; |
---|
875 | } else if (tmatch > 1) { |
---|
876 | return 2; |
---|
877 | } |
---|
878 | if (LastChar != OldLastChar) { |
---|
879 | if (argptr < OldCursor) |
---|
880 | OldCursor += (LastChar - OldLastChar); |
---|
881 | OldLastChar = LastChar; |
---|
882 | } |
---|
883 | } |
---|
884 | argptr = Cursor; |
---|
885 | } while (endflag); |
---|
886 | Cursor = OldCursor; |
---|
887 | return 1; |
---|
888 | } |
---|
889 | |
---|