1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /* $Id: emacs.cc,v 1.6 1999-09-07 08:23:04 Singular Exp $ */ |
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5 | /* |
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6 | * ABSTRACT: Esingular main file |
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7 | */ |
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8 | |
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9 | #include <stdio.h> |
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10 | #include <unistd.h> |
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11 | #include <stdlib.h> |
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12 | |
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13 | #include "mod2.h" |
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14 | #include "version.h" |
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15 | |
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16 | #define ESINGULAR |
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17 | |
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18 | #define Alloc malloc |
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19 | #define AllocL malloc |
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20 | #define mstrdup strdup |
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21 | #define Free free |
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22 | #define FreeL free |
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23 | #define Alloc malloc |
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24 | #define AllocL malloc |
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25 | #ifndef BOOLEAN |
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26 | #define BOOLEAN int |
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27 | #endif |
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28 | #ifndef FALSE |
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29 | #define FALSE 0 |
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30 | #endif |
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31 | #ifndef TRUE |
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32 | #define TRUE 1 |
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33 | #endif |
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34 | #ifndef MAXPATHLEN |
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35 | #define MAXPATHLEN 1024 |
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36 | #endif |
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37 | # define DIR_SEP '/' |
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38 | # define DIR_SEPP "/" |
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39 | # define UP_DIR ".." |
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40 | #define Warn printf |
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41 | #define WarnS printf |
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42 | #define StringAppend printf |
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43 | #define Print printf |
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44 | |
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45 | #define feReportBug(s) fePrintReportBug(s, __FILE__, __LINE__) |
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46 | void fePrintReportBug(char* msg, char* file, int line) |
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47 | { |
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48 | WarnS("YOU HAVE FOUND A BUG IN SINGULAR. "); |
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49 | WarnS("Please, email the following output to singular@mathematik.uni-kl.de "); |
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50 | Warn("Bug occured at %s:%d ", file, line); |
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51 | Warn("Message: %s ", msg); |
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52 | Warn("Version: " S_UNAME S_VERSION1 " (%d) " __DATE__ __TIME__, |
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53 | SINGULAR_VERSION_ID); |
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54 | } |
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55 | |
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56 | void assume_violation(char* file, int line) |
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57 | { |
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58 | fprintf(stderr, "Internal assume violation: file %s line %d\n", file, line); |
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59 | } |
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60 | |
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61 | extern "C" { |
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62 | #include "find_exec.c" |
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63 | } |
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64 | #include "feResource.cc" |
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65 | #include "feCmdLineOptions.cc" |
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66 | extern "C" { |
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67 | #include "getopt.c" |
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68 | } |
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69 | |
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70 | int main(int argc, char** argv) |
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71 | { |
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72 | char* singular = NULL; |
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73 | char* emacs = NULL; |
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74 | char* emacs_dir = NULL; |
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75 | char* emacs_load = NULL; |
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76 | int no_emacs_call = 0; |
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77 | char cwd[MAXPATHLEN]; |
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78 | |
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79 | // parse-cmdline options |
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80 | |
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81 | feInitResources(argv[0]); |
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82 | feResource('S'); |
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83 | feResource('b'); |
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84 | feResource('r'); |
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85 | |
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86 | int optc, option_index; |
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87 | |
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88 | while ((optc = getopt_long(argc, argv, SHORT_OPTS_STRING, |
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89 | longopts, &option_index)) |
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90 | != EOF) |
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91 | { |
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92 | switch(optc) |
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93 | { |
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94 | case 'h': |
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95 | mainHelp(argv[0]); |
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96 | exit(0); |
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97 | |
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98 | case '?': |
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99 | case ':': |
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100 | mainUsage(argv[0]); |
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101 | exit(1); |
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102 | |
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103 | case LONG_OPTION_RETURN: |
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104 | if (strcmp(longopts[option_index].name, LON_EMACS) == 0) |
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105 | { |
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106 | emacs = optarg; |
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107 | } |
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108 | else if (strcmp(longopts[option_index].name, LON_EMACS_DIR) == 0) |
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109 | { |
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110 | emacs_dir = optarg; |
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111 | } |
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112 | else if (strcmp(longopts[option_index].name, LON_EMACS_LOAD) == 0) |
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113 | { |
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114 | emacs_load = optarg; |
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115 | } |
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116 | else if (strcmp(longopts[option_index].name, LON_SINGULAR) == 0) |
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117 | { |
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118 | singular = optarg; |
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119 | } |
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120 | else if (strcmp(longopts[option_index].name, LON_NO_EMACS_CALL) == 0) |
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121 | { |
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122 | no_emacs_call = 1; |
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123 | } |
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124 | else |
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125 | { |
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126 | break; |
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127 | } |
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128 | // delete options from option-list |
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129 | if (optind > 2 && *argv[optind-1] != '-' && |
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130 | optarg != NULL && longopts[option_index].has_arg) |
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131 | { |
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132 | argv[optind-2] = NULL; |
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133 | } |
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134 | argv[optind-1] = NULL; |
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135 | } |
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136 | } |
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137 | |
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138 | // make sure emacs, singular, emacs_dir, emacs_load are set |
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139 | if (emacs == NULL) emacs = feResource("emacs", 0); |
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140 | if (emacs == NULL) |
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141 | { |
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142 | fprintf(stderr, "Error: Can't find emacs executable. \nExpected it at %s\n. Specify alternative with --emacs option,\n or set EMACS environment variable.\n", |
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143 | feResourceDefault("emacs")); |
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144 | mainUsage(argv[0]); |
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145 | exit(1); |
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146 | } |
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147 | |
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148 | if (singular == NULL) singular = feResource("SingularEmacs", 0); |
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149 | if (singular == NULL) |
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150 | { |
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151 | fprintf(stderr, "Error: Can't find singular executable.\nExpected it at %s\nSpecify with --singular option,\n or set SINGULAR_EMACS environment variable.\n", |
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152 | feResourceDefault("SingularEmacs")); |
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153 | mainUsage(argv[0]); |
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154 | exit(1); |
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155 | } |
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156 | |
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157 | if (emacs_dir == NULL) emacs_dir = feResource("EmacsDir", 0); |
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158 | if (emacs_dir == NULL) |
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159 | { |
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160 | fprintf(stderr, "Error: Can't find emacs directory for Singular lisp files. \nExpected it at %s\nSpecify with --emacs_dir option,\n or set SINGULAR_EMACS_DIR environment variable.\n", |
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161 | feResourceDefault("EmacsDir")); |
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162 | mainUsage(argv[0]); |
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163 | exit(1); |
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164 | } |
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165 | |
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166 | if (emacs_load == NULL) |
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167 | { |
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168 | // look into env variable |
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169 | emacs_load = getenv("SINGULAR_EMACS_LOAD"); |
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170 | if (access(emacs_load, R_OK)) |
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171 | { |
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172 | // look in home-dir |
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173 | emacs_load = getenv("HOME"); |
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174 | sprintf(cwd, "%s/.emacs-singular", emacs_load); |
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175 | if (! access(cwd, R_OK)) |
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176 | { |
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177 | emacs_load = mstrdup(cwd); |
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178 | } |
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179 | else |
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180 | { |
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181 | // try witrh resources |
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182 | emacs_load = feResource("EmacsLoad", 0); |
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183 | if (emacs_load == NULL) |
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184 | { |
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185 | fprintf(stderr, "Error: Can't find emacs load file for Singular mode. \nExpected it at %s\nSpecify with --emacs_load option,\n or set SINGULAR_EMACS_LOAD environment variable,\n or put file '.emacs-singular' in your home directory.\n", |
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186 | feResourceDefault("EmacsLoad")); |
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187 | mainUsage(argv[0]); |
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188 | exit(1); |
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189 | } |
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190 | } |
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191 | } |
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192 | } |
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193 | |
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194 | // construct options |
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195 | int i, length = 0; |
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196 | for (i=1; i<argc; i++) |
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197 | { |
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198 | if (argv[i] != NULL) length += strlen(argv[i]) + 3; |
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199 | } |
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200 | |
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201 | char* syscall = (char*) AllocL(strlen(emacs) + |
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202 | strlen(singular) + |
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203 | strlen(emacs_dir) + |
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204 | strlen(emacs_load) + |
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205 | length + 300); |
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206 | char* prefix = "--"; |
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207 | if (strstr(emacs, "xemacs") || strstr(emacs, "Xemacs") || strstr(emacs, "XEMACS")) |
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208 | prefix = "-"; |
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209 | getcwd(cwd, MAXPATHLEN); |
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210 | |
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211 | // Note: option -no-init-file should be equivalent to -q. Anyhow, |
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212 | // xemacs-20.4 sometimes crashed on startup when using -q. DonŽt know why. |
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213 | sprintf(syscall, "%s %seval '(setq singular-emacs-home-directory \"%s\")' %sno-init-file %sl %s %seval '(singular-other \"%s\" \"%s\" (list ", |
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214 | emacs, prefix, emacs_dir, prefix, prefix, emacs_load, prefix, |
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215 | singular, cwd); |
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216 | |
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217 | for (i=1; i<argc; i++) |
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218 | { |
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219 | if (argv[i] != NULL) |
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220 | { |
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221 | strcat(syscall, "\""); |
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222 | strcat(syscall, argv[i]); |
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223 | strcat(syscall, "\" "); |
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224 | } |
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225 | } |
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226 | strcat(syscall, ") \"singular\")'"); |
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227 | |
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228 | if (no_emacs_call) |
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229 | { |
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230 | printf("%s\n", syscall); |
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231 | } |
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232 | else |
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233 | { |
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234 | if (system(syscall) != 0) |
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235 | { |
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236 | fprintf(stderr, "Error: Executation of\n%s\n"); |
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237 | mainUsage(argv[0]); |
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238 | exit(1); |
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239 | } |
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240 | } |
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241 | } |
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242 | |
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243 | |
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