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emacs.cc
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1/****************************************
2* Computer Algebra System SINGULAR *
3****************************************/
4/*
5* ABSTRACT: Esingular main file
6*/
7
8
9
10
11#include "kernel/mod2.h"
12#include "omalloc/omalloc.h"
14#include "Singular/feOpt.h"
15
16#ifdef __CYGWIN__
17#define BOOLEAN boolean
18#endif
19
20#include <unistd.h>
21
22#ifdef DecAlpha_OSF1
23#define _BSD
24#endif
25
26#include <stdarg.h>
27
28#ifdef __CYGWIN__
29#include <windows.h>
30#endif
31
32
33#if !defined(TSINGULAR) && !defined(ESINGULAR)
34#define ESINGULAR
35#endif
36
37#ifdef system
38#undef system
39#endif
40
41#ifndef FALSE
42#define FALSE 0
43#endif
44#ifndef TRUE
45#define TRUE 1
46#endif
47#ifndef MAXPATHLEN
48#define MAXPATHLEN 1024
49#endif
50# define DIR_SEP '/'
51# define DIR_SEPP "/"
52# define UP_DIR ".."
53
54#ifndef __CYGWIN__
55void error(const char *fmt, ...)
56{
57 va_list ap;
58 va_start(ap, fmt);
59 vfprintf(stderr, fmt, ap);
60}
61#else
62void error(const char* fmt, ...)
63{
64 char buf[4096];
65 int j =0;
66 va_list args;
67 va_start(args, fmt);
68 j = sprintf(buf, "");
69 j += vsprintf(buf + j,fmt,args);
70 j += sprintf(buf + j,"\n");
71 va_end(args);
72 MessageBox(NULL, buf, "ESingular.exe", MB_ICONSTOP);
73 exit(1);
74}
75#endif
76
77#define Warn error
78#define WarnS error
79#define StringAppend printf
80#define Print error
81
82#define feReportBug(s) fePrintReportBug(s, __FILE__, __LINE__)
83void fePrintReportBug(char* msg, char* file, int line)
84{
85 error("YOU HAVE FOUND A BUG IN SINGULAR.\n"
86"Please, email the following output to singular@mathematik.uni-kl.de\n"
87"Bug occurred at %s:%d\n"
88"Message: %s\n"
89"Version: " S_UNAME VERSION VERSION_DATE,
90 file, line, msg);
91
92}
93
95{
96 error( "Use `%s --help' for a complete list of options\n", feArgv0);
97}
98
99extern char* feResourceDefault(const char id);
100extern char* feResourceDefault(const char* key);
101
102
103int main(int argc, char** argv)
104{
105 char* singular = NULL;
106 char* emacs = NULL;
107#ifndef TSINGULAR
108 char* emacs_dir = NULL;
109 char* emacs_load = NULL;
110 char cwd[MAXPATHLEN];
111#endif
112 int no_emacs_call = 0;
113
114 // parse-cmdline options
115
116 feInitResources(argv[0]);
117 feResource('S');
118 feResource('b');
119 feResource('r');
120
121 int optc, option_index;
122
123 while ((optc = fe_getopt_long(argc, argv, SHORT_OPTS_STRING,
124 feOptSpec, &option_index))
125 != EOF)
126 {
127 switch(optc)
128 {
129 case 'h':
130 extern void feOptHelp(const char* name);
131
133 exit(0);
134 break;
135 case '?':
136 case ':':
137 case '\0':
138 mainUsage();
139 exit(1);
140
142 {
143 switch(option_index)
144 {
145#ifdef TSINGULAR
146 case FE_OPT_XTERM:
147 emacs = fe_optarg;
148 break;
149#else
150 case FE_OPT_EMACS:
151 emacs = fe_optarg;
152 break;
153
154 case FE_OPT_EMACS_DIR:
155 emacs_dir = fe_optarg;
156 break;
157
158 case FE_OPT_EMACS_LOAD:
159 emacs_load = fe_optarg;
160 break;
161#endif
162 case FE_OPT_SINGULAR:
163 singular = fe_optarg;
164 break;
165
166 case FE_OPT_NO_CALL:
167 no_emacs_call = 1;
168 break;
169
170 case FE_OPT_DUMP_VERSIONTUPLE:
172 exit(0);
173 break;
174
175 default:
176 goto NEXT;
177 }
178 // delete options from option-list
179 if (fe_optind > 2 && *argv[fe_optind-1] != '-' &&
180 fe_optarg != NULL && feOptSpec[option_index].has_arg)
181 {
182 argv[fe_optind-2] = NULL;
183 }
184 argv[fe_optind-1] = NULL;
185 }
186 }
187 NEXT:{}
188 }
189
190 int i, length = 0;
191 char* syscall;
192 for (i=1; i<argc; i++)
193 {
194 if (argv[i] != NULL) length += strlen(argv[i]) + 3;
195 }
196
197#ifdef TSINGULAR
198 if (emacs == NULL) emacs = feResource('X', 0);
199 if (emacs == NULL)
200 {
201 #ifdef __CYGWIN__
202 error( "Error: Can't find rxvt program. \n Expected it at %s\n Specify alternative with --rxvt=PROGRAM option,\n or set RXVT environment variable to the name of the program to use as rxvt.\n",
203 #else
204 error( "Error: Can't find xterm program. \n Expected it at %s\n Specify alternative with --xterm=PROGRAM option,\n or set XTERM environment variable to the name of the program to use as xterm.\n",
205 #endif
206 feResourceDefault('X'));
207 mainUsage();
208 exit(1);
209 }
210
211 if (singular == NULL) singular = feResource("SingularXterm", 0);
212 if (singular == NULL)
213 {
214 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",
215 feResourceDefault("SingularXterm"));
216 mainUsage();
217 exit(1);
218 }
219
220#ifdef __CYGWIN__
221#define EXTRA_XTERM_ARGS "+vb -sl 2000 -fb Courier-bold-12 -tn xterm -cr Red3"
222#else
223#define EXTRA_XTERM_ARGS ""
224#endif
225
226 syscall = (char*) omAlloc(strlen(emacs) +
227 strlen(singular) +
228 length + 300);
229 sprintf(syscall, "%s %s -e %s ", emacs, EXTRA_XTERM_ARGS, singular);
230
231 for (i=1; i<argc; i++)
232 {
233 if (argv[i] != NULL)
234 {
235 strcat(syscall, " ");
236 strcat(syscall, argv[i]);
237 }
238 }
239#else
240 // make sure emacs, singular, emacs_dir, emacs_load are set
241 if (emacs == NULL) emacs = feResource("xemacs", 0);
242 if (emacs == NULL) emacs = feResource("emacs", 0);
243 if (emacs == NULL)
244 {
245 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",
246 feResourceDefault("emacs"), feResourceDefault("xemacs"));
247 mainUsage();
248 exit(1);
249 }
250
251 if (singular == NULL) singular = feResource("SingularEmacs", 0);
252 if (singular == NULL)
253 {
254 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",
255 feResourceDefault("SingularEmacs"));
256 mainUsage();
257 exit(1);
258 }
259
260 if (emacs_dir == NULL) emacs_dir = feResource("EmacsDir", 0);
261 if (emacs_dir == NULL)
262 {
263 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",
264 feResourceDefault("EmacsDir"));
265 mainUsage();
266 exit(1);
267 }
268
269 if (emacs_load == NULL)
270 {
271 // look into env variable
272 emacs_load = getenv("ESINGULAR_EMACS_LOAD");
273 if (access(emacs_load, R_OK))
274 {
275 // look in home-dir
276 emacs_load = getenv("HOME");
277#ifdef __CYGWIN__
278 if ((emacs_load==NULL)||(!access(emacs_load,X_OK)))
279 emacs_load = getenv("SINGHOME");
280#endif
281 sprintf(cwd, "%s/.emacs-singular", emacs_load);
282 if (! access(cwd, R_OK))
283 {
284 emacs_load = omStrDup(cwd);
285 }
286 else
287 {
288 // try with resources
289 emacs_load = feResource("EmacsLoad", 0);
290 if (emacs_load == NULL)
291 {
292 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",
293 feResourceDefault("EmacsLoad"));
294 mainUsage();
295 exit(1);
296 }
297 }
298 }
299 }
300
301 syscall = (char*) omAlloc(strlen(emacs) +
302 strlen(singular) +
303 strlen(emacs_dir) +
304 strlen(emacs_load) +
305 length + 300);
306 const char* prefix = "--";
307 if (strstr(emacs, "xemacs") || strstr(emacs, "Xemacs") || strstr(emacs, "XEMACS"))
308 prefix = "-";
309 getcwd(cwd, MAXPATHLEN);
310 // append / at the end of cwd
311 if (cwd[strlen(cwd)-1] != '/') strcat(cwd, "/");
312
313 // Note: option -no-init-file should be equivalent to -q. Anyhow,
314 // xemacs-20.4 sometimes crashed on startup when using -q. Donīt know why.
315 sprintf(syscall, "%s %sno-init-file %seval '(progn (setq singular-emacs-home-directory \"%s\") (load-file \"%s\") (singular-other \"%s\" \"%s\" (list ",
316 emacs, prefix, prefix, emacs_dir, emacs_load,
317 singular, cwd);
318
319
320 for (i=1; i<argc; i++)
321 {
322 if (argv[i] != NULL)
323 {
324 strcat(syscall, "\"");
325 strcat(syscall, argv[i]);
326 strcat(syscall, "\" ");
327 }
328 }
329 strcat(syscall, ") \"singular\"))'");
330#endif
331
332 if (no_emacs_call)
333 {
334 printf("%s\n", syscall);
335 }
336 else
337 {
338 if (system(syscall) != 0)
339 {
340 error( "Error: Execution of\n%s\n", syscall);
341 mainUsage();
342 exit(1);
343 }
344 }
345}
346
347
int i
Definition: cfEzgcd.cc:132
char * feResourceDefault(const char id)
Definition: feResource.cc:153
void fePrintReportBug(char *msg, char *file, int line)
Definition: emacs.cc:83
void mainUsage()
Definition: emacs.cc:94
int j
Definition: facHensel.cc:110
#define LONG_OPTION_RETURN
Definition: feOptTab.h:4
const char SHORT_OPTS_STRING[]
Definition: feOpt.cc:29
void feOptDumpVersionTuple(void)
Definition: feOpt.cc:423
void feOptHelp(const char *name)
Definition: feOpt.cc:372
EXTERN_VAR struct fe_option feOptSpec[]
Definition: feOpt.h:17
VAR char * feArgv0
Definition: feResource.cc:19
static char * feResource(feResourceConfig config, int warn)
Definition: feResource.cc:236
void feInitResources(const char *argv0)
Definition: feResource.cc:163
int fe_getopt_long(int argc, char *const *argv, const char *options, const struct fe_option *long_options, int *opt_index)
Definition: fegetopt.c:664
char * fe_optarg
Definition: fegetopt.c:94
int fe_optind
Definition: fegetopt.c:109
char * getenv()
static BOOLEAN length(leftv result, leftv arg)
Definition: interval.cc:257
#define error(a)
Definition: mpr_numeric.cc:966
Definition: ap.h:40
#define omStrDup(s)
Definition: omAllocDecl.h:263
#define omAlloc(size)
Definition: omAllocDecl.h:210
#define NULL
Definition: omList.c:12
#define NEXT(list)
Definition: omList.c:17
#define MAXPATHLEN
Definition: omRet2Info.c:22
int main()
int status int void * buf
Definition: si_signals.h:59
int name
New type name for int.
Definition: templateForC.h:21