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annotate Python/pythonmain.c @ 1350:d9cb55ef34e2 legacy-trunk

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Added widget methods {Height,Width}{,MM}OfScreen.
author Sjoerd Mullender <sjoerd@acm.org>
date Tue, 12 Oct 1993 14:10:58 +0000
parents 92e6a8cf14be
children c914b10bf2ed
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1 /***********************************************************
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2 Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum,
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3 Amsterdam, The Netherlands.
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4
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5 All Rights Reserved
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6
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7 Permission to use, copy, modify, and distribute this software and its
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8 documentation for any purpose and without fee is hereby granted,
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9 provided that the above copyright notice appear in all copies and that
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10 both that copyright notice and this permission notice appear in
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11 supporting documentation, and that the names of Stichting Mathematisch
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12 Centrum or CWI not be used in advertising or publicity pertaining to
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13 distribution of the software without specific, written prior permission.
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14
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15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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22
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23 ******************************************************************/
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24
6
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25 /* Python interpreter main program */
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26
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27 #include "allobjects.h"
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28
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29 extern int debugging; /* Defined in parser.c */
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30 extern int verbose; /* Defined in import.c */
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31 extern int killprint; /* Defined in ceval.c */
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32
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33 /* Interface to getopt(): */
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34 extern int optind;
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35 extern char *optarg;
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36 extern int getopt PROTO((int, char **, char *));
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37
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38 extern char *getenv();
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39
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40 main(argc, argv)
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41 int argc;
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42 char **argv;
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43 {
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44 int c;
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45 int sts;
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46 char *command = NULL;
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47 char *filename = NULL;
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48 FILE *fp = stdin;
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49 char *p;
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50 int inspect = 0;
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51
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52 if ((p = getenv("PYTHONDEBUG")) && *p != '\0')
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53 debugging = 1;
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54 if ((p = getenv("PYTHONVERBOSE")) && *p != '\0')
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55 verbose = 1;
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56 if ((p = getenv("PYTHONINSPECT")) && *p != '\0')
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57 inspect = 1;
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58 if ((p = getenv("PYTHONKILLPRINT")) && *p != '\0')
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59 killprint = 1;
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60
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61 initargs(&argc, &argv);
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62
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63 while ((c = getopt(argc, argv, "c:dikv")) != EOF) {
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64 if (c == 'c') {
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65 /* -c is the last option; following arguments
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66 that look like options are left for the
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67 the command to interpret. */
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68 command = malloc(strlen(optarg) + 2);
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69 /* Ignore malloc errors this early... */
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70 strcpy(command, optarg);
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71 strcat(command, "\n");
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72 break;
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73 }
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74
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75 switch (c) {
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76
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77 case 'd':
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78 debugging++;
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79 break;
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81 case 'i':
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82 inspect++;
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83 break;
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85 case 'k':
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86 killprint++;
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87 break;
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88
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89 case 'v':
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90 verbose++;
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91 break;
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92
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93 /* This space reserved for other options */
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94
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95 default:
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96 fprintf(stderr,
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97 "usage: %s [-d] [-i] [-k] [-v] [-c cmd | file | -] [arg] ...\n",
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98 argv[0]);
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99 fprintf(stderr, "\
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100 \n\
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101 Options and arguments (and corresponding environment variables):\n\
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102 -d : debug output from parser (also PYTHONDEBUG=x)\n\
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103 -i : inspect interactively after running script (also PYTHONINSPECT=x)\n\
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104 -k : kill printing expression statement (also PYTHONKILLPRINT=x)\n\
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105 -v : verbose (trace import statements) (also PYTHONVERBOSE=x)\n\
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106 -c cmd : program passed in as string (terminates option list)\n\
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107 file : program read from script file\n\
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108 - : program read from stdin (default; interactive mode if a tty)\n\
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109 arg ...: arguments passed to program in sys.argv[1:]\n\
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110 \n\
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111 Other environment variables:\n\
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112 PYTHONSTARTUP: file executed on interactive startup (no default)\n\
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113 PYTHONPATH : colon-separated list of directories prefixed to the\n\
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114 default module search path. The result is sys.path.\n\
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115 ");
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116 exit(2);
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117 /*NOTREACHED*/
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118
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119 }
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120 }
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121
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122 if (command == NULL && optind < argc && strcmp(argv[optind], "-") != 0)
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123 filename = argv[optind];
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124
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125 if (filename != NULL) {
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126 if ((fp = fopen(filename, "r")) == NULL) {
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127 fprintf(stderr, "%s: can't open file '%s'\n",
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128 argv[0], filename);
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129 exit(2);
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130 }
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131 }
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132
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133 initall();
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134
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135 if (command != NULL) {
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136 /* Backup optind and force sys.argv[0] = '-c' */
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137 optind--;
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138 argv[optind] = "-c";
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139 }
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140
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141 setpythonargv(argc-optind, argv+optind);
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142
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143 if (command) {
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144 sts = run_command(command) != 0;
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145 }
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146 else {
1014
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147 if (filename == NULL && isatty((int)fileno(fp))) {
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148 char *startup = getenv("PYTHONSTARTUP");
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149 if (startup != NULL && startup[0] != '\0') {
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150 FILE *fp = fopen(startup, "r");
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151 if (fp != NULL) {
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152 (void) run_script(fp, startup);
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153 err_clear();
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154 }
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155 }
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156 }
282
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157 sts = run(fp, filename == NULL ? "<stdin>" : filename) != 0;
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158 }
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159
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160 if (inspect && isatty((int)fileno(stdin)) &&
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161 (filename != NULL || command != NULL))
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162 sts = run(stdin, "<stdin>") != 0;
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163
282
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164 goaway(sts);
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165 /*NOTREACHED*/
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166 }