Annotation of OpenXM_contrib/gnuplot/plot.c, Revision 1.1
1.1 ! maekawa 1: #ifndef lint
! 2: static char *RCSid = "$Id: plot.c,v 1.87 1998/04/14 00:16:05 drd Exp $";
! 3: #endif
! 4:
! 5: /* GNUPLOT - plot.c */
! 6:
! 7: /*[
! 8: * Copyright 1986 - 1993, 1998 Thomas Williams, Colin Kelley
! 9: *
! 10: * Permission to use, copy, and distribute this software and its
! 11: * documentation for any purpose with or without fee is hereby granted,
! 12: * provided that the above copyright notice appear in all copies and
! 13: * that both that copyright notice and this permission notice appear
! 14: * in supporting documentation.
! 15: *
! 16: * Permission to modify the software is granted, but not the right to
! 17: * distribute the complete modified source code. Modifications are to
! 18: * be distributed as patches to the released version. Permission to
! 19: * distribute binaries produced by compiling modified sources is granted,
! 20: * provided you
! 21: * 1. distribute the corresponding source modifications from the
! 22: * released version in the form of a patch file along with the binaries,
! 23: * 2. add special version identification to distinguish your version
! 24: * in addition to the base release version number,
! 25: * 3. provide your name and address as the primary contact for the
! 26: * support of your modified version, and
! 27: * 4. retain our contact information in regard to use of the base
! 28: * software.
! 29: * Permission to distribute the released version of the source code along
! 30: * with corresponding source modifications in the form of a patch file is
! 31: * granted with same provisions 2 through 4 for binary distributions.
! 32: *
! 33: * This software is provided "as is" without express or implied warranty
! 34: * to the extent permitted by applicable law.
! 35: ]*/
! 36:
! 37: #include <signal.h>
! 38:
! 39: #include "plot.h"
! 40: #include "fit.h"
! 41: #include "setshow.h"
! 42: #include "fnproto.h"
! 43: #include <setjmp.h>
! 44:
! 45: #if defined(MSDOS) || defined(DOS386) || defined(__EMX__)
! 46: # include <io.h>
! 47: #endif
! 48:
! 49: /* HBB: for the control87 function, if used with DJGPP V1: */
! 50: #if defined(DJGPP) && (DJGPP!=2)
! 51: # include "ctrl87.h"
! 52: #endif
! 53:
! 54: #ifdef VMS
! 55: # ifndef __GNUC__
! 56: # include <unixio.h>
! 57: # endif
! 58: # include <smgdef.h>
! 59: extern int vms_vkid;
! 60: extern smg$create_virtual_keyboard();
! 61: extern int vms_ktid;
! 62: extern smg$create_key_table();
! 63: #endif /* VMS */
! 64:
! 65: #ifdef AMIGA_SC_6_1
! 66: # include <proto/dos.h>
! 67: #endif
! 68:
! 69: #ifdef _Windows
! 70: # include <windows.h>
! 71: # ifndef SIGINT
! 72: # define SIGINT 2 /* for MSC */
! 73: # endif
! 74: #endif /* _Windows */
! 75:
! 76: extern FILE *gpoutfile;
! 77:
! 78: TBOOLEAN interactive = TRUE; /* FALSE if stdin not a terminal */
! 79: TBOOLEAN noinputfiles = TRUE; /* FALSE if there are script files */
! 80:
! 81: /* these 2 could be in misc.c, but are here with all the other globals */
! 82: TBOOLEAN do_load_arg_substitution = FALSE;
! 83: char *call_args[10] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL };
! 84:
! 85: char *infile_name = NULL; /* name of command file; NULL if terminal */
! 86:
! 87: #ifdef GNU_READLINE
! 88: extern char *rl_readline_name;
! 89: extern int rl_complete_with_tilde_expansion;
! 90: #endif
! 91:
! 92: #ifdef X11
! 93: extern int X11_args __PROTO((int, char **));
! 94: #endif
! 95:
! 96: /* patch to get home dir, see command.c */
! 97: #if (defined (__TURBOC__) && (defined (MSDOS) || defined(DOS386))) || defined(DJGPP)
! 98: # include <dir.h> /* MAXPATH */
! 99: char HelpFile[MAXPATH];
! 100: #endif /* - DJL */
! 101:
! 102: #ifndef STDOUT
! 103: # define STDOUT 1
! 104: #endif
! 105:
! 106: /* a longjmp buffer to get back to the command line */
! 107: #ifdef _Windows
! 108: static jmp_buf far command_line_env;
! 109: #else
! 110: static jmp_buf command_line_env;
! 111: #endif
! 112:
! 113: static void load_rcfile __PROTO((void));
! 114: RETSIGTYPE inter __PROTO((int anint));
! 115:
! 116: /* built-in function table */
! 117: struct ft_entry GPFAR ft[] =
! 118: {
! 119: /* internal functions: */
! 120: {"push", (FUNC_PTR) f_push},
! 121: {"pushc", (FUNC_PTR) f_pushc},
! 122: {"pushd1", (FUNC_PTR) f_pushd1},
! 123: {"pushd2", (FUNC_PTR) f_pushd2},
! 124: {"pushd", (FUNC_PTR) f_pushd},
! 125: {"call", (FUNC_PTR) f_call},
! 126: {"calln", (FUNC_PTR) f_calln},
! 127: {"lnot", (FUNC_PTR) f_lnot},
! 128: {"bnot", (FUNC_PTR) f_bnot},
! 129: {"uminus", (FUNC_PTR) f_uminus},
! 130: {"lor", (FUNC_PTR) f_lor},
! 131: {"land", (FUNC_PTR) f_land},
! 132: {"bor", (FUNC_PTR) f_bor},
! 133: {"xor", (FUNC_PTR) f_xor},
! 134: {"band", (FUNC_PTR) f_band},
! 135: {"eq", (FUNC_PTR) f_eq},
! 136: {"ne", (FUNC_PTR) f_ne},
! 137: {"gt", (FUNC_PTR) f_gt},
! 138: {"lt", (FUNC_PTR) f_lt},
! 139: {"ge", (FUNC_PTR) f_ge},
! 140: {"le", (FUNC_PTR) f_le},
! 141: {"plus", (FUNC_PTR) f_plus},
! 142: {"minus", (FUNC_PTR) f_minus},
! 143: {"mult", (FUNC_PTR) f_mult},
! 144: {"div", (FUNC_PTR) f_div},
! 145: {"mod", (FUNC_PTR) f_mod},
! 146: {"power", (FUNC_PTR) f_power},
! 147: {"factorial", (FUNC_PTR) f_factorial},
! 148: {"bool", (FUNC_PTR) f_bool},
! 149: {"dollars", (FUNC_PTR) f_dollars}, /* for using extension */
! 150: {"jump", (FUNC_PTR) f_jump},
! 151: {"jumpz", (FUNC_PTR) f_jumpz},
! 152: {"jumpnz", (FUNC_PTR) f_jumpnz},
! 153: {"jtern", (FUNC_PTR) f_jtern},
! 154:
! 155: /* standard functions: */
! 156: {"real", (FUNC_PTR) f_real},
! 157: {"imag", (FUNC_PTR) f_imag},
! 158: {"arg", (FUNC_PTR) f_arg},
! 159: {"conjg", (FUNC_PTR) f_conjg},
! 160: {"sin", (FUNC_PTR) f_sin},
! 161: {"cos", (FUNC_PTR) f_cos},
! 162: {"tan", (FUNC_PTR) f_tan},
! 163: {"asin", (FUNC_PTR) f_asin},
! 164: {"acos", (FUNC_PTR) f_acos},
! 165: {"atan", (FUNC_PTR) f_atan},
! 166: {"atan2", (FUNC_PTR) f_atan2},
! 167: {"sinh", (FUNC_PTR) f_sinh},
! 168: {"cosh", (FUNC_PTR) f_cosh},
! 169: {"tanh", (FUNC_PTR) f_tanh},
! 170: {"int", (FUNC_PTR) f_int},
! 171: {"abs", (FUNC_PTR) f_abs},
! 172: {"sgn", (FUNC_PTR) f_sgn},
! 173: {"sqrt", (FUNC_PTR) f_sqrt},
! 174: {"exp", (FUNC_PTR) f_exp},
! 175: {"log10", (FUNC_PTR) f_log10},
! 176: {"log", (FUNC_PTR) f_log},
! 177: {"besj0", (FUNC_PTR) f_besj0},
! 178: {"besj1", (FUNC_PTR) f_besj1},
! 179: {"besy0", (FUNC_PTR) f_besy0},
! 180: {"besy1", (FUNC_PTR) f_besy1},
! 181: {"erf", (FUNC_PTR) f_erf},
! 182: {"erfc", (FUNC_PTR) f_erfc},
! 183: {"gamma", (FUNC_PTR) f_gamma},
! 184: {"lgamma", (FUNC_PTR) f_lgamma},
! 185: {"ibeta", (FUNC_PTR) f_ibeta},
! 186: {"igamma", (FUNC_PTR) f_igamma},
! 187: {"rand", (FUNC_PTR) f_rand},
! 188: {"floor", (FUNC_PTR) f_floor},
! 189: {"ceil", (FUNC_PTR) f_ceil},
! 190:
! 191: {"norm", (FUNC_PTR) f_normal}, /* XXX-JG */
! 192: {"inverf", (FUNC_PTR) f_inverse_erf}, /* XXX-JG */
! 193: {"invnorm", (FUNC_PTR) f_inverse_normal}, /* XXX-JG */
! 194: {"asinh", (FUNC_PTR) f_asinh},
! 195: {"acosh", (FUNC_PTR) f_acosh},
! 196: {"atanh", (FUNC_PTR) f_atanh},
! 197:
! 198: {"column", (FUNC_PTR) f_column}, /* for using */
! 199: {"valid", (FUNC_PTR) f_valid}, /* for using */
! 200: {"timecolumn", (FUNC_PTR) f_timecolumn}, /* for using */
! 201:
! 202: {"tm_sec", (FUNC_PTR) f_tmsec}, /* for timeseries */
! 203: {"tm_min", (FUNC_PTR) f_tmmin}, /* for timeseries */
! 204: {"tm_hour", (FUNC_PTR) f_tmhour}, /* for timeseries */
! 205: {"tm_mday", (FUNC_PTR) f_tmmday}, /* for timeseries */
! 206: {"tm_mon", (FUNC_PTR) f_tmmon}, /* for timeseries */
! 207: {"tm_year", (FUNC_PTR) f_tmyear}, /* for timeseries */
! 208: {"tm_wday", (FUNC_PTR) f_tmwday}, /* for timeseries */
! 209: {"tm_yday", (FUNC_PTR) f_tmyday}, /* for timeseries */
! 210:
! 211: {NULL, NULL}
! 212: };
! 213:
! 214: static struct udvt_entry udv_pi = { NULL, "pi", FALSE };
! 215: /* first in linked list */
! 216: struct udvt_entry *first_udv = &udv_pi;
! 217: struct udft_entry *first_udf = NULL;
! 218:
! 219: #ifdef OS2
! 220: # define INCL_DOS
! 221: # define INCL_REXXSAA
! 222: # include <os2.h>
! 223: # include <process.h>
! 224: ULONG RexxInterface(PRXSTRING, PUSHORT, PRXSTRING);
! 225: int ExecuteMacro(char *, int);
! 226: void PM_intc_cleanup();
! 227: void PM_setup();
! 228: #endif /* OS2 */
! 229:
! 230: #if defined(ATARI) || defined(MTOS)
! 231: /* For findfile () (?) */
! 232: # include <support.h>
! 233: void appl_exit(void);
! 234: void MTOS_open_pipe(void);
! 235: extern int aesid;
! 236: #endif
! 237:
! 238: RETSIGTYPE inter(anint)
! 239: int anint;
! 240: {
! 241: #ifdef OS2
! 242: (void) signal(anint, SIG_ACK);
! 243: #else
! 244: (void) signal(SIGINT, (sigfunc) inter);
! 245: #endif
! 246:
! 247: #ifndef DOSX286
! 248: (void) signal(SIGFPE, SIG_DFL); /* turn off FPE trapping */
! 249: #endif
! 250: #ifdef OS2
! 251: PM_intc_cleanup();
! 252: #else
! 253: term_reset();
! 254: (void) putc('\n', stderr);
! 255: longjmp(command_line_env, TRUE); /* return to prompt */
! 256: #endif
! 257: }
! 258:
! 259:
! 260: /* a wrapper for longjmp so we can keep everything local */
! 261: void bail_to_command_line()
! 262: {
! 263: longjmp(command_line_env, TRUE);
! 264: }
! 265:
! 266: #if defined(_Windows) || defined(_Macintosh)
! 267: int gnu_main(argc, argv)
! 268: #else
! 269: int main(argc, argv)
! 270: #endif
! 271: int argc;
! 272: char **argv;
! 273: {
! 274: #ifdef LINUXVGA
! 275: LINUX_setup();
! 276: #endif
! 277: /* make sure that we really have revoked root access, this might happen if
! 278: gnuplot is compiled without vga support but is installed suid by mistake */
! 279: #ifdef __linux__
! 280: setuid(getuid());
! 281: #endif
! 282: #if defined(MSDOS) && !defined(_Windows) && !defined(__GNUC__)
! 283: PC_setup();
! 284: #endif /* MSDOS !Windows */
! 285: /* HBB: Seems this isn't needed any more for DJGPP V2? */
! 286: /* HBB: disable all floating point exceptions, just keep running... */
! 287: #if defined(DJGPP) && (DJGPP!=2)
! 288: _control87(MCW_EM, MCW_EM);
! 289: #endif
! 290:
! 291: #if defined(OS2)
! 292: int rc;
! 293: if (_osmode == OS2_MODE) {
! 294: PM_setup();
! 295: rc = RexxRegisterSubcomExe("GNUPLOT", (PFN) RexxInterface, NULL);
! 296: }
! 297: #endif
! 298:
! 299: /* malloc large blocks, otherwise problems with fragmented mem */
! 300: #ifdef OSK
! 301: _mallocmin(102400);
! 302: #endif
! 303:
! 304: #ifdef MALLOCDEBUG
! 305: malloc_debug(7);
! 306: #endif
! 307:
! 308: /* get helpfile from home directory */
! 309: #ifndef DOSX286
! 310: # ifndef _Windows
! 311: # if defined (__TURBOC__) && (defined (MSDOS) || defined(DOS386))
! 312: strcpy(HelpFile, argv[0]);
! 313: strcpy(strrchr(HelpFile, DIRSEP1), "\\gnuplot.gih");
! 314: # endif /* - DJL */
! 315: # endif /* !_Windows */
! 316: #endif /* !DOSX286 */
! 317: #ifdef __DJGPP__
! 318: {
! 319: char *s;
! 320: strcpy(HelpFile, argv[0]);
! 321: for (s = HelpFile; *s; s++)
! 322: if (*s == DIRSEP1)
! 323: *s = DIRSEP2; /* '\\' to '/' */
! 324: strcpy(strrchr(HelpFile, DIRSEP2), "/gnuplot.gih");
! 325: } /* Add also some "paranoid" tests for '\\': AP */
! 326: #endif /* DJGPP */
! 327:
! 328: #ifdef VMS
! 329: unsigned int status[2] = { 1, 0 };
! 330: #endif
! 331:
! 332: #ifdef GNU_READLINE
! 333: rl_readline_name = argv[0];
! 334: rl_complete_with_tilde_expansion = 1;
! 335: #endif
! 336:
! 337: #ifdef X11
! 338: {
! 339: int n = X11_args(argc, argv);
! 340: argv += n;
! 341: argc -= n;
! 342: }
! 343: #endif
! 344:
! 345: #ifdef apollo
! 346: apollo_pfm_catch();
! 347: #endif
! 348:
! 349: /* moved to ATARI_init in atariaes.trm */
! 350: /* #ifdef ATARI
! 351: void application_init(void);
! 352: application_init();
! 353: #endif */
! 354:
! 355: #ifdef MTOS
! 356: MTOS_open_pipe();
! 357: #endif
! 358:
! 359: setbuf(stderr, (char *) NULL);
! 360:
! 361: #ifndef NO_SETVBUF
! 362: /* this was once setlinebuf(). Docs say this is
! 363: * identical to setvbuf(,NULL,_IOLBF,0), but MS C
! 364: * faults this (size out of range), so we try with
! 365: * size of 1024 instead. [SAS/C does that, too. -lh]
! 366: * Failing this, I propose we just make the call and
! 367: * ignore the return : its probably not a big deal
! 368: */
! 369: if (setvbuf(stdout, (char *) NULL, _IOLBF, (size_t) 1024) != 0)
! 370: fputs("Could not linebuffer stdout\n", stderr);
! 371: #endif
! 372:
! 373: gpoutfile = stdout;
! 374: (void) Gcomplex(&udv_pi.udv_value, Pi, 0.0);
! 375:
! 376: init_memory();
! 377:
! 378: interactive = FALSE;
! 379: init_terminal(); /* can set term type if it likes */
! 380:
! 381: #ifdef AMIGA_SC_6_1
! 382: if (IsInteractive(Input()) == DOSTRUE)
! 383: interactive = TRUE;
! 384: else
! 385: interactive = FALSE;
! 386: #else
! 387: # if (defined(__MSC__) && defined(_Windows)) || defined(__WIN32__)
! 388: interactive = TRUE;
! 389: # else
! 390: interactive = isatty(fileno(stdin));
! 391: # endif
! 392: #endif /* !AMIGA_SC_6_1 */
! 393:
! 394: if (argc > 1)
! 395: interactive = noinputfiles = FALSE;
! 396: else
! 397: noinputfiles = TRUE;
! 398:
! 399: if (interactive)
! 400: show_version(stderr);
! 401:
! 402: #ifdef VMS
! 403: /* initialise screen management routines for command recall */
! 404: if (status[1] = smg$create_virtual_keyboard(&vms_vkid) != SS$_NORMAL)
! 405: done(status[1]);
! 406: if (status[1] = smg$create_key_table(&vms_ktid) != SS$_NORMAL)
! 407: done(status[1]);
! 408: #endif /* VMS */
! 409:
! 410: if (!setjmp(command_line_env)) {
! 411: /* first time */
! 412: interrupt_setup();
! 413: load_rcfile();
! 414: init_fit(); /* Initialization of fitting module */
! 415:
! 416: if (interactive && term != 0) /* not unknown */
! 417: fprintf(stderr, "\nTerminal type set to '%s'\n", term->name);
! 418: } else {
! 419: /* come back here from int_error() */
! 420: #ifdef AMIGA_SC_6_1
! 421: (void) rawcon(0);
! 422: #endif
! 423: load_file_error(); /* if we were in load_file(), cleanup */
! 424: #ifdef _Windows
! 425: SetCursor(LoadCursor((HINSTANCE) NULL, IDC_ARROW));
! 426: #endif
! 427:
! 428: #ifdef VMS
! 429: /* after catching interrupt */
! 430: /* VAX stuffs up stdout on SIGINT while writing to stdout,
! 431: so reopen stdout. */
! 432: if (gpoutfile == stdout) {
! 433: if ((stdout = freopen("SYS$OUTPUT", "w", stdout)) == NULL) {
! 434: /* couldn't reopen it so try opening it instead */
! 435: if ((stdout = fopen("SYS$OUTPUT", "w")) == NULL) {
! 436: /* don't use int_error here - causes infinite loop! */
! 437: fputs("Error opening SYS$OUTPUT as stdout\n", stderr);
! 438: }
! 439: }
! 440: gpoutfile = stdout;
! 441: }
! 442: #endif /* VMS */
! 443: if (!interactive && !noinputfiles) {
! 444: term_reset();
! 445: #if defined(ATARI) || defined(MTOS)
! 446: if (aesid > -1)
! 447: atexit(appl_exit);
! 448: #endif
! 449: return (IO_ERROR); /* exit on non-interactive error */
! 450: }
! 451: }
! 452:
! 453: if (argc > 1) {
! 454: #ifdef _Windows
! 455: int noend = 0;
! 456: #endif
! 457:
! 458: /* load filenames given as arguments */
! 459: while (--argc > 0) {
! 460: ++argv;
! 461: c_token = NO_CARET; /* in case of file not found */
! 462: #ifdef _Windows
! 463: if (stricmp(*argv, "-noend") == 0 || stricmp(*argv, "/noend") == 0)
! 464: noend = 1;
! 465: else
! 466: #endif
! 467: if (strcmp(*argv, "-") == 0) {
! 468: /* DBT 10-7-98 go interactive if "-" on command line */
! 469:
! 470: interactive = TRUE;
! 471: /* will this work on all platforms? */
! 472:
! 473: while (!com_line());
! 474:
! 475: /* interactive = FALSE; /* should this be here? */
! 476:
! 477: } else
! 478: load_file(fopen(*argv, "r"), *argv, FALSE);
! 479: }
! 480: #ifdef _Windows
! 481: if (noend) {
! 482: interactive = TRUE;
! 483: while (!com_line());
! 484: }
! 485: #endif
! 486: } else {
! 487: /* take commands from stdin */
! 488: while (!com_line());
! 489: }
! 490:
! 491: term_reset();
! 492:
! 493: #ifdef OS2
! 494: if (_osmode == OS2_MODE)
! 495: RexxDeregisterSubcom("GNUPLOT", NULL);
! 496: #endif
! 497:
! 498: #if defined(ATARI) || defined(MTOS)
! 499: if (aesid > -1)
! 500: atexit(appl_exit);
! 501: #endif
! 502: return (IO_SUCCESS);
! 503: }
! 504:
! 505: #if (defined(ATARI) || defined(MTOS)) && defined(__PUREC__)
! 506: int purec_matherr(struct exception *e)
! 507: {
! 508: char *c;
! 509: switch (e->type) {
! 510: case DOMAIN:
! 511: c = "domain error";
! 512: break;
! 513: case SING:
! 514: c = "argument singularity";
! 515: break;
! 516: case OVERFLOW:
! 517: c = "overflow range";
! 518: break;
! 519: case UNDERFLOW:
! 520: c = "underflow range";
! 521: break;
! 522: default:
! 523: c = "(unknown error";
! 524: break;
! 525: }
! 526: fprintf(stderr, "\
! 527: math exception : %s\n\
! 528: name : %s\n\
! 529: arg 1: %e\n\
! 530: arg 2: %e\n\
! 531: ret : %e\n",
! 532: c,
! 533: e->name,
! 534: e->arg1,
! 535: e->arg2,
! 536: e->retval);
! 537:
! 538: return 1;
! 539: }
! 540: #endif /* (ATARI || MTOS) && PUREC */
! 541:
! 542:
! 543: /* Set up to catch interrupts */
! 544: void interrupt_setup()
! 545: {
! 546: #ifdef __PUREC__
! 547: setmatherr(purec_matherr);
! 548: #endif
! 549:
! 550: (void) signal(SIGINT, (sigfunc) inter);
! 551:
! 552: #ifdef SIGPIPE
! 553: /* ignore pipe errors, this might happen with set output "|head" */
! 554: (void) signal(SIGPIPE, SIG_IGN);
! 555: #endif /* SIGPIPE */
! 556: }
! 557:
! 558:
! 559: /* Look for a gnuplot init file in . or home directory */
! 560: static void load_rcfile()
! 561: {
! 562: FILE *plotrc = NULL;
! 563: char home[80];
! 564: char rcfile[sizeof(PLOTRC) + 80];
! 565: char *tmp_home = NULL;
! 566: #ifndef VMS
! 567: char *p; /* points to last char in home path, or to \0, if none */
! 568:
! 569: tmp_home = getenv(HOME);
! 570: if (tmp_home) {
! 571: safe_strncpy(home, tmp_home, sizeof(home));
! 572: if (strlen(home))
! 573: p = &home[strlen(home) - 1];
! 574: else
! 575: p = home;
! 576: if ((*p != DIRSEP1) && (*p != DIRSEP2) && (*p != NUL)) {
! 577: assert(p >= home && p <= (home + sizeof(home) - 1 - 2));
! 578: if (*p)
! 579: p++;
! 580: *p++ = DIRSEP1;
! 581: *p = NUL;
! 582: }
! 583: }
! 584: #else /* VMS */
! 585: safe_strncpy(home, HOME, sizeof(home));
! 586: tmp_home = home;
! 587: #endif /* VMS */
! 588:
! 589: #ifdef NOCWDRC
! 590: /* inhibit check of init file in current directory for security reasons */
! 591: #else
! 592: (void) strcpy(rcfile, PLOTRC);
! 593: plotrc = fopen(rcfile, "r");
! 594: #endif /* !NOCWDRC */
! 595:
! 596: if (plotrc == NULL) {
! 597: if (tmp_home) {
! 598: (void) sprintf(rcfile, "%s%s", home, PLOTRC);
! 599: plotrc = fopen(rcfile, "r");
! 600: #if defined(ATARI) || defined(MTOS)
! 601: if (plotrc == NULL) {
! 602: char const *const ext[] = { NULL };
! 603: char *ini_ptr = findfile(PLOTRC, getenv("GNUPLOTPATH"), ext);
! 604:
! 605: if (ini_ptr)
! 606: plotrc = fopen(ini_ptr, "r");
! 607: }
! 608: #endif /* ATARI || MTOS */
! 609: }
! 610: }
! 611: if (plotrc)
! 612: load_file(plotrc, rcfile, FALSE);
! 613: }
! 614:
! 615: #ifdef OS2
! 616:
! 617: int ExecuteMacro(char *argv, int namelength)
! 618: {
! 619: RXSTRING rxRc;
! 620: RXSTRING rxArg;
! 621: char pszName[CCHMAXPATH];
! 622: short sRc;
! 623: int rc;
! 624:
! 625: safe_strncpy(pszName, argv, sizeof(pszName));
! 626: MAKERXSTRING(rxArg, argv, strlen(argv));
! 627: rc = RexxStart(1,
! 628: &rxArg,
! 629: pszName,
! 630: NULL,
! 631: "GNUPLOT",
! 632: RXCOMMAND,
! 633: NULL,
! 634: &sRc,
! 635: &rxRc);
! 636: if (rc == -4)
! 637: rc = 0; /* run was cancelled-don't give error message */
! 638:
! 639: /* We don't use this value ?
! 640: BTW, don't use free() instead since it's allocated inside RexxStart() */
! 641: DosFreeMem(rxRc.strptr);
! 642: return rc;
! 643: }
! 644:
! 645: ULONG RexxInterface(PRXSTRING rxCmd, PUSHORT pusErr, PRXSTRING rxRc)
! 646: /*
! 647: ** Rexx command line interface
! 648: */
! 649: {
! 650: int rc;
! 651: static jmp_buf keepenv;
! 652: int cmdlen;
! 653:
! 654: memcpy(keepenv, command_line_env, sizeof(jmp_buf));
! 655: if (!setjmp(command_line_env)) {
! 656: /* set variable input_line.
! 657: * Watch out for line length of NOT_ZERO_TERMINATED strings ! */
! 658: cmdlen = rxCmd->strlength + 1;
! 659: safe_strncpy(input_line, rxCmd->strptr, cmdlen);
! 660: input_line[cmdlen] = NUL;
! 661:
! 662: rc = do_line();
! 663: *pusErr = RXSUBCOM_OK;
! 664: rxRc->strptr[0] = rc + '0';
! 665: rxRc->strptr[1] = NUL;
! 666: rxRc->strlength = strlen(rxRc->strptr);
! 667: } else {
! 668: *pusErr = RXSUBCOM_ERROR;
! 669: RexxSetHalt(getpid(), 1);
! 670: }
! 671: memcpy(command_line_env, keepenv, sizeof(jmp_buf));
! 672: return 0;
! 673: }
! 674: #endif
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