1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /* $Id: emacs.cc,v 1.19 2000-11-14 16:04:51 obachman 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 | #include <stdarg.h> |
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13 | #include <string.h> |
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14 | |
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15 | #ifdef WINNT |
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16 | #include <windows.h> |
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17 | #endif |
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18 | #include "mod2.h" |
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19 | #include "version.h" |
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20 | #include <omalloc.h> |
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21 | |
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22 | #if !defined(TSINGULAR) && !defined(ESINGULAR) |
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23 | #define ESINGULAR |
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24 | #endif |
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25 | |
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26 | #ifdef system |
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27 | #undef system |
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28 | #endif |
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29 | |
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30 | #ifndef BOOLEAN |
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31 | #define BOOLEAN int |
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32 | #endif |
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33 | #ifndef FALSE |
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34 | #define FALSE 0 |
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35 | #endif |
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36 | #ifndef TRUE |
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37 | #define TRUE 1 |
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38 | #endif |
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39 | #ifndef MAXPATHLEN |
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40 | #define MAXPATHLEN 1024 |
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41 | #endif |
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42 | # define DIR_SEP '/' |
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43 | # define DIR_SEPP "/" |
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44 | # define UP_DIR ".." |
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45 | |
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46 | #ifndef WINNT |
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47 | void error(const char *fmt, ...) |
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48 | { |
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49 | va_list ap; |
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50 | va_start(ap, fmt); |
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51 | vfprintf(stderr, fmt, ap); |
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52 | } |
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53 | #else |
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54 | void error(char* fmt, ...) |
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55 | { |
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56 | char buf[4096]; |
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57 | int j =0; |
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58 | va_list args; |
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59 | va_start(args, fmt); |
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60 | j = sprintf(buf, ""); |
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61 | j += vsprintf(buf + j,fmt,args); |
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62 | j += sprintf(buf + j,"\n"); |
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63 | va_end(args); |
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64 | MessageBox(NULL, buf, "ESingular.exe", MB_ICONSTOP); |
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65 | exit(1); |
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66 | } |
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67 | #endif |
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68 | |
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69 | #define Warn error |
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70 | #define WarnS error |
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71 | #define StringAppend printf |
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72 | #define Print error |
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73 | |
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74 | #define feReportBug(s) fePrintReportBug(s, __FILE__, __LINE__) |
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75 | void fePrintReportBug(char* msg, char* file, int line) |
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76 | { |
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77 | error("YOU HAVE FOUND A BUG IN SINGULAR. |
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78 | Please, email the following output to singular@mathematik.uni-kl.de |
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79 | Bug occured at %s:%d |
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80 | Message: %s |
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81 | Version: " S_UNAME S_VERSION1 " (%lu) " __DATE__ __TIME__, |
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82 | file, line, msg, feVersionId); |
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83 | |
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84 | } |
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85 | |
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86 | #include "feResource.cc" |
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87 | #include "feOpt.cc" |
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88 | |
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89 | void mainUsage() |
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90 | { |
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91 | error( "Use `%s --help' for a complete list of options\n", feArgv0); |
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92 | } |
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93 | |
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94 | int main(int argc, char** argv) |
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95 | { |
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96 | char* singular = NULL; |
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97 | char* emacs = NULL; |
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98 | char* emacs_dir = NULL; |
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99 | char* emacs_load = NULL; |
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100 | int no_emacs_call = 0; |
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101 | char cwd[MAXPATHLEN]; |
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102 | |
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103 | // parse-cmdline options |
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104 | |
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105 | feInitResources(argv[0]); |
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106 | feResource('S'); |
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107 | feResource('b'); |
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108 | feResource('r'); |
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109 | |
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110 | int optc, option_index; |
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111 | |
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112 | while ((optc = fe_getopt_long(argc, argv, SHORT_OPTS_STRING, |
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113 | feOptSpec, &option_index)) |
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114 | != EOF) |
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115 | { |
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116 | switch(optc) |
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117 | { |
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118 | case 'h': |
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119 | feOptHelp(feArgv0); |
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120 | exit(0); |
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121 | |
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122 | case '?': |
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123 | case ':': |
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124 | case '\0': |
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125 | mainUsage(); |
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126 | exit(1); |
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127 | |
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128 | case LONG_OPTION_RETURN: |
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129 | { |
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130 | switch(option_index) |
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131 | { |
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132 | #ifdef TSINGULAR |
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133 | case FE_OPT_XTERM: |
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134 | emacs = fe_optarg; |
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135 | break; |
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136 | #else |
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137 | case FE_OPT_EMACS: |
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138 | emacs = fe_optarg; |
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139 | break; |
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140 | |
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141 | case FE_OPT_EMACS_DIR: |
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142 | emacs_dir = fe_optarg; |
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143 | break; |
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144 | |
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145 | case FE_OPT_EMACS_LOAD: |
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146 | emacs_load = fe_optarg; |
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147 | break; |
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148 | #endif |
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149 | case FE_OPT_SINGULAR: |
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150 | singular = fe_optarg; |
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151 | break; |
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152 | |
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153 | case FE_OPT_NO_CALL: |
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154 | no_emacs_call = 1; |
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155 | break; |
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156 | |
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157 | default: |
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158 | goto NEXT; |
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159 | } |
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160 | // delete options from option-list |
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161 | if (fe_optind > 2 && *argv[fe_optind-1] != '-' && |
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162 | fe_optarg != NULL && feOptSpec[option_index].has_arg) |
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163 | { |
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164 | argv[fe_optind-2] = NULL; |
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165 | } |
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166 | argv[fe_optind-1] = NULL; |
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167 | } |
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168 | } |
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169 | NEXT:{} |
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170 | } |
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171 | |
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172 | int i, length = 0; |
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173 | char* syscall; |
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174 | for (i=1; i<argc; i++) |
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175 | { |
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176 | if (argv[i] != NULL) length += strlen(argv[i]) + 3; |
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177 | } |
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178 | |
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179 | #ifdef TSINGULAR |
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180 | if (emacs == NULL) emacs = feResource('X', 0); |
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181 | if (emacs == NULL) |
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182 | { |
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183 | error( "Error: Can't find emacs xterm program. \n Expected it at %s or %s\n Specify alternative with --xterm=PROGRAM option,\n or set ESINGULAR_EMACS environment variable to the name of the program to use as xterm.\n", |
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184 | feResourceDefault('X')); |
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185 | mainUsage(); |
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186 | exit(1); |
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187 | } |
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188 | |
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189 | if (singular == NULL) singular = feResource("SingularXterm", 0); |
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190 | if (singular == NULL) |
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191 | { |
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192 | error( "Error: Can't find singular executable.\n Expected it at %s\n Specify with --singular option,\n or set TSINGULAR_SINGULAR environment variable.\n", |
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193 | feResourceDefault("SingularXterm")); |
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194 | mainUsage(); |
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195 | exit(1); |
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196 | } |
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197 | |
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198 | #ifdef WINNT |
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199 | #define EXTRA_XTERM_ARGS "+vb -sl 2000 -fb Courier-bold-13 -tn linux -cr Red3" |
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200 | #else |
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201 | #define EXTRA_XTERM_ARGS "" |
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202 | #endif |
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203 | |
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204 | syscall = (char*) omAlloc(strlen(emacs) + |
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205 | strlen(singular) + |
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206 | length + 300); |
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207 | sprintf(syscall, "%s %s -e %s ", emacs, EXTRA_XTERM_ARGS, singular); |
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208 | |
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209 | for (i=1; i<argc; i++) |
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210 | { |
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211 | if (argv[i] != NULL) |
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212 | { |
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213 | strcat(syscall, " "); |
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214 | strcat(syscall, argv[i]); |
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215 | } |
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216 | } |
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217 | #else |
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218 | // make sure emacs, singular, emacs_dir, emacs_load are set |
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219 | if (emacs == NULL) emacs = feResource("xemacs", 0); |
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220 | if (emacs == NULL) emacs = feResource("emacs", 0); |
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221 | if (emacs == NULL) |
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222 | { |
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223 | error( "Error: Can't find emacs or xemacs executable. \n Expected it at %s or %s\n Specify alternative with --emacs option,\n or set ESINGULAR_EMACS environment variable.\n", |
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224 | feResourceDefault("emacs"), feResourceDefault("xemacs")); |
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225 | mainUsage(); |
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226 | exit(1); |
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227 | } |
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228 | |
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229 | if (singular == NULL) singular = feResource("SingularEmacs", 0); |
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230 | if (singular == NULL) |
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231 | { |
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232 | error( "Error: Can't find singular executable.\n Expected it at %s\n Specify with --singular option,\n or set ESINGULAR_SINGULAR environment variable.\n", |
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233 | feResourceDefault("SingularEmacs")); |
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234 | mainUsage(); |
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235 | exit(1); |
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236 | } |
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237 | |
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238 | if (emacs_dir == NULL) emacs_dir = feResource("EmacsDir", 0); |
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239 | if (emacs_dir == NULL) |
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240 | { |
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241 | error( "Error: Can't find emacs directory for Singular lisp files. \n Expected it at %s\n Specify with --emacs_dir option,\n or set ESINGULAR_EMACS_DIR environment variable.\n", |
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242 | feResourceDefault("EmacsDir")); |
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243 | mainUsage(); |
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244 | exit(1); |
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245 | } |
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246 | |
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247 | if (emacs_load == NULL) |
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248 | { |
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249 | // look into env variable |
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250 | emacs_load = getenv("ESINGULAR_EMACS_LOAD"); |
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251 | if (access(emacs_load, R_OK)) |
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252 | { |
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253 | // look in home-dir |
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254 | emacs_load = getenv("HOME"); |
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255 | sprintf(cwd, "%s/.emacs-singular", emacs_load); |
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256 | if (! access(cwd, R_OK)) |
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257 | { |
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258 | emacs_load = omStrDup(cwd); |
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259 | } |
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260 | else |
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261 | { |
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262 | // try with resources |
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263 | emacs_load = feResource("EmacsLoad", 0); |
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264 | if (emacs_load == NULL) |
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265 | { |
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266 | error( "Error: Can't find emacs load file for Singular mode. \n Expected it at %s\n Specify with --emacs_load option,\n or set ESINGULAR_EMACS_LOAD environment variable,\n or put file '.emacs-singular' in your home directory.\n", |
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267 | feResourceDefault("EmacsLoad")); |
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268 | mainUsage(); |
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269 | exit(1); |
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270 | } |
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271 | } |
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272 | } |
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273 | } |
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274 | |
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275 | syscall = (char*) omAlloc(strlen(emacs) + |
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276 | strlen(singular) + |
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277 | strlen(emacs_dir) + |
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278 | strlen(emacs_load) + |
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279 | length + 300); |
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280 | char* prefix = "--"; |
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281 | if (strstr(emacs, "xemacs") || strstr(emacs, "Xemacs") || strstr(emacs, "XEMACS")) |
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282 | prefix = "-"; |
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283 | getcwd(cwd, MAXPATHLEN); |
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284 | // append / at the end of cwd |
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285 | if (cwd[strlen(cwd)-1] != '/') strcat(cwd, "/"); |
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286 | |
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287 | // Note: option -no-init-file should be equivalent to -q. Anyhow, |
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288 | // xemacs-20.4 sometimes crashed on startup when using -q. DonŽt know why. |
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289 | 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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290 | emacs, prefix, emacs_dir, prefix, prefix, emacs_load, prefix, |
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291 | singular, cwd); |
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292 | |
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293 | |
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294 | for (i=1; i<argc; i++) |
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295 | { |
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296 | if (argv[i] != NULL) |
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297 | { |
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298 | strcat(syscall, "\""); |
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299 | strcat(syscall, argv[i]); |
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300 | strcat(syscall, "\" "); |
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301 | } |
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302 | } |
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303 | strcat(syscall, ") \"singular\")'"); |
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304 | #endif |
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305 | |
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306 | if (no_emacs_call) |
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307 | { |
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308 | printf("%s\n", syscall); |
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309 | } |
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310 | else |
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311 | { |
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312 | if (system(syscall) != 0) |
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313 | { |
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314 | error( "Error: Execution of\n%s\n", syscall); |
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315 | mainUsage(); |
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316 | exit(1); |
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317 | } |
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318 | } |
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319 | } |
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320 | |
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321 | |
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