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2 | mjames | 1 | /********** |
2 | * $Id: cmdparse.c,v 1.1.1.1 2003/11/04 23:34:56 mjames Exp $ ********** |
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3 | |||
4 | One time Author: Kevin Ross (x6143) |
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5 | Philips Semiconductors Limited. |
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6 | Millbrook Industrial Estate, Southampton, SO9 7BH. England. |
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7 | |||
8 | Date: 13th May 1993 |
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9 | |||
10 | Mostly by Mike James these days |
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11 | |||
12 | Comment: This program parses the input commands for the SFC3 evaluation software |
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13 | $Log: cmdparse.c,v $ |
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14 | Revision 1.1.1.1 2003/11/04 23:34:56 mjames |
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15 | Imported into local repositrory |
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16 | |||
17 | Revision 1.18 2002/09/09 10:26:56 mjames |
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18 | Removed set generic range and replaced it with a set generic value command |
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19 | that takes both integers and ranges. |
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20 | |||
21 | Revision 1.17 2002/01/16 11:22:41 mjames |
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22 | database.h header file is read in first as it undefined DLL stuff irrelevant |
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23 | to HPUX |
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24 | |||
25 | Revision 1.16 2001/12/20 13:49:48 mjames |
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26 | force ? |
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27 | |||
28 | Revision 1.15 2001/12/13 22:14:26 mjames |
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29 | Corrected nested command handlers to allow variable passing without corruption. |
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30 | |||
31 | Revision 1.14 2001/10/31 22:20:00 mjames |
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32 | Tidying up problematical comments caused by CVS |
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33 | 'intelligent' comment guessing |
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34 | |||
35 | Revision 1.13 2001/10/10 20:19:56 mjames |
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36 | Adjustment of handling of escapes and comments |
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37 | |||
38 | Revision 1.12 2001/10/10 10:02:59 mjames |
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39 | Final tweaks to work with end-of line at end-of-file |
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40 | |||
41 | Revision 1.11 2001/10/10 09:54:30 mjames |
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42 | Modified command line handler to correctly recognise |
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43 | comment leaders anywhere on line, not just as first character. |
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44 | |||
45 | Revision 1.10 2001/07/09 15:08:44 mjames |
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46 | Check the last character of a line of text to see if it is actually a control code |
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47 | before deleting it |
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48 | |||
49 | Revision 1.9 2001/06/19 05:24:57 mjames |
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50 | Created a trap_fopen to overcome trying to write to read only files. |
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51 | If this attempted in NT the file can be opened but not written to. |
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52 | |||
53 | Revision 1.8 2001/06/06 12:10:24 mjames |
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54 | Move from HPUX |
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55 | |||
56 | Revision 1.7 2001/05/01 15:21:18 mjames |
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57 | Added comment leaders on printout of commands executed |
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58 | |||
59 | Revision 1.6 2001/04/06 22:47:01 mjames |
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60 | Added doc2, the creator of documentation to Vertical scripts uses PERL |
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61 | |||
62 | |||
63 | Also correcting generic behaviour and the printing of Verilog. |
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64 | |||
65 | Revision 1.5 2001/02/06 22:41:14 mjames |
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66 | Added correct argument passing for 'read file comp_suffix arg0 arg1 arg2 ... |
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67 | |||
68 | Revision 1.4 2001/01/26 21:50:10 mjames |
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69 | Managed to get vertical non TCL to compile again |
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70 | |||
71 | Conversion to argv, argc[] mode of operation continues |
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72 | |||
73 | Revision 1.3 2001/01/04 21:26:54 mjames |
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74 | Modifications to add in the TCL style |
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75 | argument list to all of the functions |
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76 | . |
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77 | |||
78 | Revision 1.2 2001/01/02 07:53:52 mjames |
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79 | Made changes to allow for interface with TCL/Tk |
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80 | |||
81 | Revision 1.1.1.1 2000/10/19 21:58:35 mjames |
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82 | Mike put it here |
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83 | |||
84 | There has been a lot more development, but the comments have been |
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85 | removed in order to cut down the junk |
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86 | |||
87 | *********************************************************************************************************/ |
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88 | |||
89 | #include "cmdparse.h" |
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90 | |||
91 | #include "cmdexec.h" |
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92 | #include "cmdlog.h" |
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93 | #include "cmdutil.h" |
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94 | #include "database.h" |
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95 | #include "expression.h" |
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96 | #include "generic.h" |
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97 | #include "vertcl_main.h" |
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98 | |||
99 | #include <ctype.h> |
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100 | #include <stdio.h> |
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101 | #include <stdlib.h> |
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102 | #include <string.h> |
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103 | /* used for dynamic string allocation/deallocation code |
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104 | * used here for command keywords May 2 2000 */ |
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105 | #include "lx_support.h" |
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106 | |||
107 | /*********************************************************************************************************/ |
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108 | #ident \ |
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109 | "@(#)$Header: c:\\cygwin\\cvsroot/Vert03/cmdlib/cmdparse.c,v 1.1.1.1 2003/11/04 23:34:56 mjames Exp $" |
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110 | |||
111 | /******************************************* Execute a command |
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112 | * ******************************************/ |
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113 | /* define flag for global control of execution mode |
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114 | * can be Tcl_Cmd or Tcl_GUI : default to be Tcl_Cmd for |
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115 | * backwards compatibility */ |
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116 | |||
117 | tcl_mode_t tcl_mode = Tcl_Cmd; |
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118 | |||
119 | #define WORDWIDTH 100 /* max command word ever expected */ |
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120 | #define CMDWIDTH 20 /*Field width for printing CMD word */ |
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121 | int Execute (int argc, char *argv[], struct command Dispatch[]) |
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122 | { |
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123 | int i, j, FinalResult = UNKNOWNCMD; |
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124 | |||
125 | if (!argc) |
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126 | return (NARGS); |
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127 | if (argv[0][0] == '?') |
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128 | { |
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129 | printf ("Commands available;\nHelp on:"); |
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130 | for (i = 0; i < argc; i++) |
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131 | printf ("%s ", argv[i]); |
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132 | putchar ('\n'); |
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133 | for (i = 0; Dispatch[i].name; i++) |
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134 | { |
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135 | int p; |
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136 | for (j = 0; j < Dispatch[i].NumChar; |
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137 | j++) /* upper case significant chars */ |
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138 | putchar (toupper (Dispatch[i].name[j])); |
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139 | for (; Dispatch[i].name[j]; |
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140 | j++) /* and all of the rest, we just print */ |
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141 | putchar (Dispatch[i].name[j]); |
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142 | putchar (' '); |
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143 | j++; |
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144 | if (Dispatch[i].extras) |
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145 | { |
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146 | p = j; |
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147 | for (; Dispatch[i].extras[j - p]; |
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148 | j++) /* and all of the extras field we just print */ |
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149 | putchar (Dispatch[i].extras[j - p]); |
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150 | }; |
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151 | for (; j < CMDWIDTH; j++) /* create spacing , relies on auto - wrap */ |
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152 | putchar (j & 1 ? '.' : ' '); |
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153 | putchar (' '); |
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154 | puts (Dispatch[i].helpstr); |
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155 | } |
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156 | putchar ('\n'); |
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157 | FinalResult = OKCMD; /* ? is a valid command at this level */ |
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158 | } |
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159 | else |
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160 | { |
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161 | for (i = 0; Dispatch[i].name; i++) |
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162 | if (strncmp (argv[0], Dispatch[i].name, Dispatch[i].NumChar) == 0) |
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163 | { |
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164 | /* Dispatch the next level command */ |
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165 | if (Dispatch[i].function) |
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166 | { /* call function if there */ |
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167 | FinalResult = (*Dispatch[i].function) ( |
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168 | Tcl_interp, NULL, argc - 1, argv + 1); |
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169 | } |
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170 | else /* call down the menu */ |
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171 | FinalResult = |
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172 | Execute (argc - 1, argv + 1, Dispatch[i].Menu); |
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173 | break; |
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174 | } |
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175 | } |
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176 | return (FinalResult); |
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177 | } |
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178 | |||
179 | /******************************************** Strip off words |
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180 | * ********************************************/ |
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181 | /* this needs repairing . This code is unsafe. |
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182 | * Needs to keep a record of how many chars copied !! |
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183 | * and stop when in danger of a buffer overflow. |
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184 | * |
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185 | * Did not work properly if expanded strings are longer than the |
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186 | * original strings. This now fixed. |
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187 | * |
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188 | * Code modified to use some string allocation functions in lx_support.c |
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189 | */ |
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190 | /*char wordbuff[1024]; |
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191 | */ |
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192 | typedef enum |
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193 | { |
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194 | SPACES, |
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195 | CHARS |
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196 | } Phase_t; |
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197 | |||
198 | int FindWords ( |
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199 | char *linebuff, |
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200 | int *pargc, |
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201 | char *argv[], |
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202 | int nArgs, |
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203 | char *Args[], |
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204 | struct str **cmd_first, |
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205 | struct str **cmd_last) |
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206 | { |
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207 | char *WordPtr; |
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208 | char *BasePtr; |
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209 | int argc = 0; |
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210 | int term = ' ', escape, comment, done_word, chars_seen; |
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211 | char *copy_buff; |
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212 | Phase_t Phase; |
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213 | |||
214 | copy_buff = malloc (strlen (linebuff) + 1); /* make a safe copy */ |
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215 | |||
216 | /* for (i=0; i<Len; i++) */ |
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217 | /* Cmd->Text[i] = tolower(Cmd->Text[i]); */ /* convert text to lower |
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218 | case */ |
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219 | WordPtr = linebuff; /* set LineStart to beginning of string */ |
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220 | escape = 0; |
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221 | comment = 0; |
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222 | /* Now split off the words */ |
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223 | BasePtr = NULL; |
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224 | while (*WordPtr && argc < WORDSINLINE && comment < 2) |
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225 | { |
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226 | BasePtr = copy_buff; |
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227 | Phase = SPACES; |
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228 | term = ' '; |
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229 | done_word = 0; |
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230 | chars_seen = 0; |
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231 | while (*WordPtr && !done_word && comment < 2) |
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232 | { |
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233 | switch (Phase) |
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234 | { |
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235 | case SPACES: |
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236 | if (isspace (*WordPtr)) /* skip leading spaces */ |
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237 | WordPtr++; |
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238 | else |
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239 | Phase = CHARS; |
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240 | break; |
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241 | case CHARS: |
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242 | if (!escape && *WordPtr == '\\') |
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243 | { |
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244 | escape = 1; |
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245 | WordPtr++; |
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246 | } |
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247 | else |
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248 | { |
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249 | if (term == ' ' && !escape && |
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250 | (*WordPtr == '"' || *WordPtr == '\'')) |
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251 | { /* sigle or double quotes ? */ |
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252 | term = *WordPtr++; |
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253 | chars_seen = 1; |
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254 | } |
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255 | else |
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256 | { |
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257 | /* handle ordinary chars */ |
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258 | if (!escape && term == ' ' && |
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259 | WordPtr[0] == '#') |
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260 | { |
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261 | comment = 2; |
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262 | done_word = |
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263 | chars_seen; /* comment is appended |
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264 | to valid chars */ |
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265 | WordPtr++; |
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266 | } |
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267 | else if ( |
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268 | !escape && term == ' ' && |
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269 | WordPtr[0] == '-') |
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270 | { |
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271 | comment++; |
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272 | WordPtr++; |
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273 | if (comment == 2) |
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274 | done_word = |
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275 | chars_seen; /* comment is |
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276 | appended to |
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277 | valid chars |
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278 | */ |
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279 | } |
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280 | else if ( |
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281 | (*WordPtr == '\r') || (*WordPtr == '\n') || |
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282 | (!escape && (*WordPtr == term))) |
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283 | { |
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284 | if (comment == 1) |
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285 | *BasePtr++ = '-'; |
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286 | comment = 0; |
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287 | Phase = SPACES; |
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288 | *BasePtr = '\0'; |
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289 | done_word = 1; |
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290 | WordPtr++; |
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291 | } |
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292 | else |
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293 | { |
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294 | if (escape) |
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295 | *BasePtr++ = '\\'; |
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296 | if (comment == 1) |
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297 | *BasePtr++ = '-'; |
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298 | chars_seen = 1; |
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299 | comment = 0; |
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300 | escape = 0; |
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301 | *BasePtr++ = *WordPtr++; |
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302 | } |
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303 | } |
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304 | } |
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305 | break; |
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306 | } /* switch */ |
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307 | } /* while */ |
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308 | *BasePtr = '\0'; |
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309 | /* make_string now performs an expand_string call */ |
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310 | if (chars_seen) |
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311 | { |
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312 | argv[argc++] = make_string (copy_buff, cmd_first, cmd_last); |
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313 | } |
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314 | } |
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315 | *pargc = argc; |
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316 | free (copy_buff); |
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317 | |||
318 | return (OKCMD); |
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319 | } |
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320 | |||
321 | /********************************* executes the command from stdin or a do file |
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322 | * **************************/ |
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323 | |||
324 | int ExecuteCommand (FILE *CmdFile, int nArgs, char *Args[]) |
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325 | { |
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326 | char Buff[PATHLENGTH]; |
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327 | int i, Status; |
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328 | char *p; |
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329 | int argc; |
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330 | char *argv[WORDSINLINE]; |
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331 | struct str *cmd_first, *cmd_last; |
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332 | cmd_first = NULL; |
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333 | cmd_last = NULL; |
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334 | |||
335 | if (!CmdFile || feof (CmdFile)) |
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336 | return (QUITCMD); |
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337 | |||
338 | p = fgets (Buff, PATHLENGTH - 1, CmdFile); /* read the command from the input stream */ |
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339 | argc = 0; /* place the command in the command structure */ |
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340 | if (p == NULL || *Buff == '\0') |
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341 | return (OKCMD); |
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342 | |||
343 | /* convert control codes to spaces */ |
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344 | i = 0; |
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345 | while (Buff[i]) |
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346 | { |
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347 | if (Buff[i] < ' ') |
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348 | Buff[i] = ' '; |
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349 | i++; |
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350 | } |
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351 | |||
352 | FindWords (Buff, &argc, argv, nArgs, Args, &cmd_first, &cmd_last); /* split off the |
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353 | words and save in |
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354 | structure */ |
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355 | if (1 || CmdFile != stdin) |
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356 | { |
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357 | printf ("-- "); |
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358 | for (i = 0; i < argc; i++) |
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359 | printf ( |
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360 | "%s ", |
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361 | ISNULLSTR (argv[i]) ? "\"\"" |
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362 | : argv[i]); /* log the command word by word if |
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363 | its not given interactively */ |
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364 | printf ("\n"); /* */ |
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365 | } |
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366 | /* the code below is not as helpful as it seems . Moved recognizer for comments into |
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367 | Execute as the comments can appear at any point on the command line */ |
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368 | /* if (argc ==0 || |
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369 | argv[0][0] == '-' || |
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370 | argv[0][0] == '#') */ |
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371 | if (argc == 0) |
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372 | { |
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373 | /* deallocate any previous structures */ |
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374 | free_strings (&cmd_first, &cmd_last); |
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375 | return (OKCMD); /* comment or a null string */ |
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376 | } |
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377 | |||
378 | Status = |
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379 | Execute (argc, argv, TopMenu); /* pass the command through the top-level menu */ |
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380 | switch (Status) |
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381 | { |
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382 | case UNKNOWNCMD: |
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383 | Log (LOG_ERROR, "# Unknown command\n"); |
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384 | break; |
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385 | case NARGS: |
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386 | Log (LOG_ERROR, "# Too few parameters\n"); |
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387 | break; |
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388 | case FAILED: |
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389 | Log (LOG_ERROR, "# Problem with command\n"); |
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390 | break; |
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391 | }; |
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392 | |||
393 | if (Status != OKCMD) |
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394 | { |
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395 | Log (LOG_ERROR, "-- ? "); |
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396 | for (i = 0; i < argc; i++) /* display offending command */ |
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397 | Log (LOG_ERROR, " %s", ISNULLSTR (argv[i]) ? "\"\"" : argv[i]); |
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398 | |||
399 | Log (LOG_ERROR, "\n"); |
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400 | }; |
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401 | |||
402 | /* deallocate any previous structures */ |
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403 | free_strings (&cmd_first, &cmd_last); |
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404 | |||
405 | return (Status); |
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406 | } |
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407 | |||
408 | /********************************* Execute a command string |
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409 | * ******************************************/ |
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410 | int ExecuteString (char *commandstring, int nArgs, char *Args[]) |
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411 | { |
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412 | int argc = 0; |
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413 | char *argv[WORDSINLINE]; |
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414 | int Status = 0; |
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415 | |||
416 | struct str *cmd_first, *cmd_last; |
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417 | cmd_first = NULL; |
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418 | cmd_last = NULL; |
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419 | FindWords ( |
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420 | commandstring, &argc, argv, nArgs, Args, &cmd_first, &cmd_last); /* split off the |
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421 | words and save |
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422 | in structure */ |
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423 | Status = |
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424 | Execute (argc, argv, TopMenu); /* pass the command through the top-level menu */ |
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425 | /* deallocate any previous structures */ |
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426 | free_strings (&cmd_first, &cmd_last); |
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427 | return (Status); |
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428 | } |
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429 | |||
430 | /********************************* A parser for the '*.do files |
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431 | * ******************************************/ |
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432 | static int Depth = 0; |
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433 | #define MAXDEPTH 10 /* maximum depth of 'do' files */ |
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434 | #define MAXARGV 10 |
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435 | int ParseFile (FILE *CmdFile, int nArgs, char *Args[]) |
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436 | { |
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437 | int Status = 0; |
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438 | char *argp[MAXARGV]; |
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439 | char **argp_prev; |
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440 | int nArgs_prev; |
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441 | int i; |
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442 | /* diagnosis */ |
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443 | if (nArgs > MAXARGV) |
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444 | nArgs = MAXARGV; |
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445 | if (nArgs < 0) |
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446 | nArgs = 0; |
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447 | /* belt and braces null check */ |
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448 | if (!CmdFile) |
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449 | return (FAILED); |
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450 | |||
451 | for (i = 0; i < MAXARGV; i++) |
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452 | { |
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453 | if (i < nArgs) |
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454 | argp[i] = strdup (Args[i]); |
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455 | else |
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456 | argp[i] = NULL; |
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457 | |||
458 | /* printf("Arg [%2d]='%s'\n",i,argp[i]); */ |
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459 | } |
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460 | nArgs_prev = yy_nArgs; |
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461 | argp_prev = yy_Args; |
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462 | yy_nArgs = nArgs; |
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463 | yy_Args = argp; |
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464 | |||
465 | Depth++; /* keep a count of recursion depth */ |
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466 | printf ("-- Command file nesting level = %d\n", Depth); |
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467 | if (Depth > MAXDEPTH) |
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468 | { |
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469 | Log (LOG_ERROR, "Recursive call of files is greater than %d\n", MAXDEPTH); |
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470 | Depth--; |
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471 | return (FAILED); |
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472 | } |
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473 | while (Status == OKCMD) /* execute the command from do file input stream */ |
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474 | Status = ExecuteCommand (CmdFile, nArgs, argp); |
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475 | Depth--; |
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476 | yy_nArgs = nArgs_prev; |
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477 | yy_Args = argp_prev; |
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478 | for (i = 0; i < MAXARGV; i++) |
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479 | if (argp[i]) |
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480 | { |
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481 | free (argp[i]); |
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482 | argp[i] = NULL; |
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483 | } |
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484 | return (Status); |
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485 | } |
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486 | |||
487 | /*********************************************************************************************************/ |