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