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Annotation of OpenXM/src/kxx/ox_texmacs.c, Revision 1.34

1.34    ! takayama    1: /* $OpenXM: OpenXM/src/kxx/ox_texmacs.c,v 1.33 2006/03/06 08:55:31 takayama Exp $ */
1.1       takayama    2:
                      3: #include <stdio.h>
1.23      takayama    4: #include <stdlib.h>
                      5: #include <string.h>
1.1       takayama    6: #include <setjmp.h>
                      7: #include <signal.h>
                      8: #include "ox_kan.h"
                      9: #include "serversm.h"
1.33      takayama   10: #include "ox_pathfinder.h"
1.1       takayama   11:
                     12: #if defined(__CYGWIN__)
                     13: #define JMP_BUF sigjmp_buf
                     14: #define SETJMP(env)  sigsetjmp(env,1)
                     15: #define LONGJMP(env,p)  siglongjmp(env,p)
                     16: #else
                     17: #define JMP_BUF jmp_buf
                     18: #define SETJMP(env)  setjmp(env)
                     19: #define LONGJMP(env,p)  longjmp(env,p)
                     20: #endif
                     21:
1.3       takayama   22: /*
                     23: #define DEBUG
                     24: */
1.7       takayama   25: /* #define DEBUG2 */
1.3       takayama   26:
1.23      takayama   27: /* Type of View part (user interface engine) */
                     28: #define  GENERIC      0   /* DEBUG, xml */
                     29: #define  V_TEXMACS    1
                     30: #define  V_CFEP       2
                     31: int View       = V_TEXMACS ;
                     32:
                     33: char *Data_begin_v[] = {
                     34:   "<S type=verbatim>",
                     35:   "\002verbatim:",
                     36:   "\002",
                     37: };
                     38: char *Data_begin_l[] = {
                     39:   "<S type=latex>",
                     40:   "\002latex:",
                     41:   "\002latex:"
                     42: };
                     43: char *Data_begin_p[] = {
                     44:   "<S type=prompt>",
                     45:   "\002prompt:",
                     46:   "\002prompt:"
                     47: };
                     48: char *Data_begin_ps[] = {
                     49:   "<S type=postscript>",
                     50:   "\002ps:",
                     51:   "\002ps:"
                     52: };
                     53: char *Data_end[] = {
                     54:   "</S>",
                     55:   "\005",
1.25      takayama   56:   "\n\005"    /* \n is not a part of the protocol. */
1.23      takayama   57: };
                     58:
1.25      takayama   59: /* todo:  start_of_input */
1.2       takayama   60:
1.25      takayama   61: char End_of_input[] = {
                     62:   0x5,              /* Use ^E and Return to end the input. */
                     63:   '\n',  /* TEXMACS_END_OF_INPUT. 0xd should be used for multiple lines. */
                     64:   0x5    /* CFEP_END_OF_INPUT    */
                     65: };
1.1       takayama   66:
1.5       takayama   67: /* Table for the engine type. */
                     68: #define ASIR          1
                     69: #define SM1           2
                     70: #define K0            3
                     71:
1.1       takayama   72: extern int Quiet;
                     73: extern JMP_BUF EnvOfStackMachine;
1.19      takayama   74: extern int Calling_ctrlC_hook;
1.20      takayama   75: extern int RestrictedMode, RestrictedMode_saved;
1.33      takayama   76: int Format=1;  /* 1 : latex mode, 2: cfep_png */
1.3       takayama   77: int OutputLimit_for_TeXmacs = (1024*10);
1.1       takayama   78:
1.22      takayama   79:
1.5       takayama   80: int TM_Engine  = ASIR ;
                     81: int TM_asirStarted = 0;
                     82: int TM_sm1Started  = 0;
                     83: int TM_k0Started  = 0;
1.7       takayama   84: int TM_do_not_print = 0;
1.5       takayama   85:
1.15      takayama   86: int Xm_noX = 0;
                     87: int NoCopyright = 0;
1.25      takayama   88: int Cpp = 0;                 /* Use cpp before sending to the engine. */
                     89: int EngineLogToStdout = 0;   /* Do not run the ox engine inside xterm. */
1.15      takayama   90:
1.33      takayama   91: char *AsirInitFile = NULL;
1.32      takayama   92:
1.29      takayama   93: char *LanguageResource = NULL;
                     94:
1.1       takayama   95: void ctrlC();
                     96: struct object KpoString(char *s);
                     97: char *KSpopString(void);
                     98:
1.2       takayama   99: static char *readString(FILE *fp,char *prolog, char *eplog);
1.1       takayama  100: static void printv(char *s);
                    101: static void printl(char *s);
                    102: static void printp(char *s);
1.17      takayama  103: static void printps(char *s);
1.2       takayama  104: static void printCopyright(char *s);
1.5       takayama  105: static int startEngine(int type,char *msg);
1.17      takayama  106: static int isPS(char *s);
1.22      takayama  107: static int end_of_input(int c);
                    108: static void setDefaultParameterForCfep();
1.2       takayama  109:
1.27      takayama  110: static void myEncoder(int c);
                    111: static void myEncoderS(unsigned char *s);
                    112: static void myEncoderSn(unsigned char *s,int n);
                    113: static void outputStringToTunnel0(int channel, unsigned char *s, int size, int view);
                    114: static void outputStringToTunnel(int channel, unsigned char *s,  int view);
                    115:
1.33      takayama  116: static void pngSendFile(char *path);
                    117: static int pngCheck(void);
                    118: static void pngNotAvailable(void);
                    119: static char *pngGetResult();
                    120:
1.31      takayama  121: static void flushSm1();
                    122:
1.2       takayama  123: /* tail -f /tmp/debug-texmacs.txt
                    124:    Debug output to understand the timing problem of pipe interface.
                    125: */
1.3       takayama  126: FILE *Dfp;
1.1       takayama  127:
1.10      takayama  128: main(int argc,char *argv[]) {
1.1       takayama  129:   char *s;
                    130:   char *r;
                    131:   char *sys;
1.21      takayama  132:   struct object ob = OINIT;
1.3       takayama  133:   int irt=0;
1.4       takayama  134:   int vmode=1;
1.7       takayama  135:   char *openxm_home;
                    136:   char *asir_config;
1.33      takayama  137:   char *path;
1.10      takayama  138:   int i;
1.1       takayama  139:
1.7       takayama  140:
                    141:
1.3       takayama  142: #ifdef DEBUG2
                    143:   Dfp = fopen("/tmp/debug-texmacs.txt","w");
                    144: #endif
1.2       takayama  145:
1.1       takayama  146:   /* Set consts */
                    147:   Quiet = 1;
1.10      takayama  148:   for (i=1; i<argc; i++) {
1.22      takayama  149:     if (strcmp(argv[i],"--view") == 0) {
                    150:       i++;
                    151:       if (strcmp(argv[i],"texmacs") == 0) {
                    152:         View = V_TEXMACS;
                    153:       }else if (strcmp(argv[i],"cfep")==0) {
                    154:         View = V_CFEP; setDefaultParameterForCfep();
                    155:       }else{
1.25      takayama  156:         View = GENERIC;
1.22      takayama  157:         /* printv("Unknown view type.\n"); */
                    158:       }
                    159:     } else if (strcmp(argv[i],"--sm1") == 0) {
                    160:       TM_Engine = SM1;
                    161:     }else if (strcmp(argv[i],"--asir") == 0) {
                    162:       TM_Engine = ASIR;
                    163:     }else if (strcmp(argv[i],"--k0") == 0) {
                    164:       TM_Engine = K0;
1.14      takayama  165:     }else if (strcmp(argv[i],"--outputLimit") == 0) {
                    166:       i++;
                    167:       sscanf(argv[i],"%d",&OutputLimit_for_TeXmacs);
1.15      takayama  168:     }else if (strcmp(argv[i],"--noLogWindow") == 0) {
1.22      takayama  169:       Xm_noX = 1;
1.15      takayama  170:     }else if (strcmp(argv[i],"--noCopyright") == 0) {
1.22      takayama  171:       NoCopyright = 1;
1.25      takayama  172:     }else if (strcmp(argv[i],"--cpp") == 0) {
                    173:       Cpp = 1;
                    174:     }else if (strcmp(argv[i],"--engineLogToStdout") == 0) {
                    175:       EngineLogToStdout = 1;
1.29      takayama  176:     }else if (strcmp(argv[i],"--languageResource") == 0) {
                    177:       i++;
                    178:       LanguageResource = (char *)sGC_malloc(strlen(argv[i])+80);
                    179:       sprintf(LanguageResource,
                    180:                          " /localizedString.file (%s) def localizedString.load ",argv[i]);
1.32      takayama  181:     }else if (strcmp(argv[i],"--asirInitFile") == 0) {
                    182:       i++;
1.33      takayama  183:       AsirInitFile = (char *)sGC_malloc(strlen(argv[i])+80);
1.32      takayama  184:       sprintf(AsirInitFile,"%s",argv[i]);
1.22      takayama  185:     }else{
                    186:       /* printv("Unknown option\n"); */
                    187:     }
1.10      takayama  188:   }
1.1       takayama  189:
1.23      takayama  190:   openxm_home = (char *) getenv("OpenXM_HOME");
                    191:   asir_config = (char *) getenv("ASIR_CONFIG");
                    192:   if (openxm_home == NULL)  {
                    193:     printv("Error. The environmental variable OpenXM_HOME is not set.\nStart the texmacs with openxm texmacs or ox_texmacs by openxm ox_texmacs\nBye...");
                    194:     exit(10);
                    195:   }
                    196:
1.1       takayama  197:   /* Initialize kanlib (gc is also initialized) */
                    198:   KSstart();
                    199:
1.3       takayama  200:   /* Main loop */
1.23      takayama  201:   printf("%s",Data_begin_v[View]);
                    202:   if ((asir_config == NULL) && (View == V_TEXMACS)) {
                    203:     printf("Warning. The environmental variable ASIR_CONFIG is not set.\nStart the texmacs with openxm texmacs or ox_texmacs by openxm ox_texmacs.\nOtherwise, tex translation will not be performed\n");
                    204:
                    205:   }
                    206:
1.3       takayama  207:   printCopyright("");
                    208:
1.23      takayama  209:
1.1       takayama  210:   /* Load ox engine here */
                    211:   /* engine id should be set to ox.engine */
                    212:   KSexecuteString(" [(parse) (ox.sm1) pushfile] extension ");
1.15      takayama  213:   if (Xm_noX) KSexecuteString(" /Xm_noX 1 def ");
1.26      takayama  214:   if (EngineLogToStdout) KSexecuteString(" /Xm_engineLogToStdout 1 def ");
1.29      takayama  215:   if (LanguageResource != NULL) KSexecuteString(LanguageResource);
1.5       takayama  216:   startEngine(TM_Engine," ");
1.1       takayama  217:
                    218:   if (signal(SIGINT,SIG_IGN) != SIG_IGN) {
1.8       takayama  219:     signal(SIGINT,ctrlC);
1.1       takayama  220:   }
1.3       takayama  221:
                    222:   irt = 0;
1.1       takayama  223:   while(1) {
1.8       takayama  224:     /* printp(sys);  no prompt */
                    225:     if (SETJMP(EnvOfStackMachine)) {
1.19      takayama  226:       if (!Calling_ctrlC_hook) {
1.20      takayama  227:         Calling_ctrlC_hook = 1; RestrictedMode = 0;
1.19      takayama  228:         KSexecuteString(" ctrlC-hook "); /* Execute User Defined functions. */
1.20      takayama  229:         RestrictedMode = RestrictedMode_saved;
1.19      takayama  230:       }
                    231:       Calling_ctrlC_hook = 0;
1.8       takayama  232:       if (signal(SIGINT,SIG_IGN) != SIG_IGN) {
                    233:         signal(SIGINT,ctrlC);
                    234:       }
                    235:       irt = 1;
                    236:       continue;
                    237:     } else {  }
                    238:     if (!irt) {
1.23      takayama  239:       printf("%s",Data_end[View]); fflush(stdout);
1.8       takayama  240:     }
                    241:     irt = 0;
1.7       takayama  242:
                    243:     /* Reading the input. */
1.8       takayama  244:     if (TM_Engine == K0) {
                    245:       s=readString(stdin, " ", " "); /* see test data */
                    246:     }else if (TM_Engine == SM1) {
                    247:       s=readString(stdin, " ", " "); /* see test data */
                    248:     }else{
                    249:       s=readString(stdin, "if (1) { ", " ; }else{ }"); /* see test data */
                    250:     }
1.5       takayama  251:
1.8       takayama  252:     if (s == NULL) { irt = 1; continue; }
1.23      takayama  253:     if (!irt) printf("%s",Data_begin_v[View]);
1.7       takayama  254:     /* Evaluate the input on the engine */
1.27      takayama  255:     KSexecuteString(" ox.engine oxclearstack ");
1.1       takayama  256:     KSexecuteString(" ox.engine ");
1.7       takayama  257:     ob = KpoString(s);
1.8       takayama  258:     KSpush(ob);
                    259:     KSexecuteString(" oxsubmit ");
1.31      takayama  260:
                    261:        if (TM_Engine == SM1) flushSm1();
1.8       takayama  262:
1.27      takayama  263:     /* Get the result in string for cfep. */
                    264:     if (View != V_TEXMACS) {
                    265:       KSexecuteString(" ox.engine oxgeterrors ");
                    266:       ob = KSpop();
                    267:       if (ob.tag == Sarray) {
                    268:         if (getoaSize(ob) > 0) {
                    269:           ob = getoa(ob,0);
                    270:           KSpush(ob);
                    271:           KSexecuteString(" translateErrorForCfep ");
                    272:           r = KSpopString();
                    273:           outputStringToTunnel(0,(unsigned char *)r,View);
                    274:         }
                    275:       }
                    276:       if (!TM_do_not_print) {
1.33      takayama  277:         if (Format == 2) { /* png mode */
                    278:           r = pngGetResult();
                    279:         }else{
                    280:           KSexecuteString(" ox.engine oxpopstring ");
                    281:           r = KSpopString();
                    282:         }
1.27      takayama  283:         printv(r);
                    284:       }else{
                    285:         KSexecuteString(" ox.engine 1 oxpops ");
                    286:         KSexecuteString(" ox.engine 0 oxpushcmo ox.engine oxpopcmo ");
                    287:         ob = KSpop();
                    288:         printv("");
                    289:       }
                    290:       continue;
                    291:     }
                    292:     /* Get the result in string for texmacs  */
1.33      takayama  293:     if ((Format == 1) && (! TM_do_not_print)) {
1.8       takayama  294:       /* translate to latex form */
                    295:       KSexecuteString(" ox.engine oxpushcmotag ox.engine oxpopcmo ");
                    296:       ob = KSpop();
                    297:       vmode = 0;
                    298:       /* printf("id=%d\n",ob.tag); bug: matrix return 17 instead of Sinteger
                    299:        or error. */
                    300:       if (ob.tag == Sinteger) {
                    301:         /* printf("cmotag=%d\n",ob.lc.ival);*/
                    302:         if (ob.lc.ival == CMO_ERROR2) {
                    303:           vmode = 1;
                    304:         }
                    305:         if (ob.lc.ival == CMO_STRING) {
                    306:           vmode = 1;
                    307:         }
                    308:       }
                    309:       if (vmode) {
                    310:         KSexecuteString(" ox.engine oxpopstring ");
                    311:         r = KSpopString();
                    312:       }else{
                    313:         KSexecuteString(" ox.engine 1 oxpushcmo ox.engine (print_tex_form) oxexec  ");
                    314:         KSexecuteString(" ox.engine oxpopstring ");
                    315:         r = KSpopString();
                    316:       }
1.17      takayama  317:       if (isPS(r)) {
                    318:         printps(r);
                    319:       }else{
                    320:         if (vmode) printv(r);
                    321:         else{
                    322:           if (strlen(r) < OutputLimit_for_TeXmacs) {
                    323:             printl(r);
                    324:           } else printv("Output is too large.\n");
                    325:         }
                    326:       }
1.8       takayama  327:     }else{
                    328:       if (!TM_do_not_print) {
                    329:         KSexecuteString(" ox.engine oxpopstring ");
                    330:         r = KSpopString();
1.17      takayama  331:         printv(r);
1.8       takayama  332:       }else{
                    333:         KSexecuteString(" ox.engine 1 oxpops "); /* Discard the result. */
1.12      takayama  334:         /* Push and pop dummy data to wait until the computation finishes. */
                    335:         KSexecuteString(" ox.engine 0 oxpushcmo ox.engine oxpopcmo ");
                    336:         ob = KSpop();
1.8       takayama  337:         printv("");
                    338:       }
                    339:     }
1.27      takayama  340:     /* note that there is continue above. */
1.1       takayama  341:   }
                    342: }
                    343:
1.33      takayama  344: static char *pngGetResult(void) {
                    345:   struct object ob;
                    346:   int vmode;
                    347:   char *r;
                    348:   char *path;
                    349:
                    350:   /* translate to latex form */
                    351:   KSexecuteString(" ox.engine oxpushcmotag ox.engine oxpopcmo ");
                    352:   ob = KSpop();
                    353:   vmode = 0;
                    354:   /* printf("id=%d\n",ob.tag); bug: matrix return 17 instead of Sinteger
                    355:      or error. */
                    356:   if (ob.tag == Sinteger) {
                    357:     /* printf("cmotag=%d\n",ob.lc.ival);*/
                    358:     if (ob.lc.ival == CMO_ERROR2) {
                    359:       vmode = 1;
                    360:     }
                    361:     if (ob.lc.ival == CMO_STRING) {
                    362:       vmode = 1;
                    363:     }
                    364:   }
                    365:   if (vmode) {
                    366:     KSexecuteString(" ox.engine oxpopstring ");
                    367:     r = KSpopString();
                    368:   }else{
                    369:     KSexecuteString(" ox.engine 1 oxpushcmo ox.engine (print_png_form2) oxexec  ");
                    370:     KSexecuteString(" ox.engine oxpopcmo /tmp_ox_texmacs set tmp_ox_texmacs 0 get ");
                    371:     r = KSpopString();  /* input form */
                    372:     KSexecuteString(" tmp_ox_texmacs 1 get ");
                    373:     path = KSpopString(); /* path name of the png file. */
                    374:     pngSendFile(path);
                    375:   }
                    376:   return r;
                    377: }
                    378:
1.1       takayama  379: #define SB_SIZE 1024
1.8       takayama  380: #define INC_BUF     if (n >= limit-3) { \
                    381:       tmp = s; \
                    382:       limit *= 2;  \
                    383:       s = (char *) sGC_malloc(limit); \
                    384:       if (s == NULL) { \
                    385:         fprintf(stderr,"No more memory.\n"); \
                    386:         exit(10); \
                    387:       } \
                    388:       strcpy(s,tmp); \
                    389:     }
1.2       takayama  390: /*   */
                    391: static char *readString(FILE *fp, char *prolog, char *epilog) {
1.1       takayama  392:   int n = 0;
                    393:   static int limit = 0;
                    394:   static char *s;
                    395:   int c;
                    396:   char *tmp;
1.2       takayama  397:   int i;
1.3       takayama  398:   int m;
                    399:   int start;
1.21      takayama  400:   struct object ob = OINIT;
1.1       takayama  401:   if (limit == 0) {
1.8       takayama  402:     limit = 1024;
                    403:     s = (char *)sGC_malloc(limit);
                    404:     if (s == NULL) {
                    405:       fprintf(stderr,"No more memory.\n");
                    406:       exit(10);
                    407:     }
1.1       takayama  408:   }
1.2       takayama  409:   s[0] = 0; n = 0; m = 0;
                    410:   for (i=0; i < strlen(prolog); i++) {
1.8       takayama  411:     s[n++] = prolog[i];  s[n] = 0;
1.2       takayama  412:     INC_BUF ;
                    413:   }
1.3       takayama  414:   start = n;
1.1       takayama  415:   while ((c = fgetc(fp)) != EOF) {
1.3       takayama  416: #ifdef DEBUG2
1.8       takayama  417:     fprintf(Dfp,"[%x] ",c); fflush(Dfp);
1.3       takayama  418: #endif
1.22      takayama  419:     if (end_of_input(c)) {
1.18      takayama  420:       /* If there remains data in the stream,
1.25      takayama  421:          read the remaining data. (for debug) */
1.18      takayama  422:          /*
1.8       takayama  423:       if (oxSocketSelect0(0,1)) {
                    424:         if (c == '\n') c=' ';
                    425:         s[n++] = c; s[n] = 0;  m++;
                    426:         INC_BUF ;
                    427:         continue;
                    428:       }
1.18      takayama  429:       */
1.8       takayama  430:       break;
                    431:     }
1.18      takayama  432:     if ( c == '\v') c=' ';
1.8       takayama  433:     s[n++] = c; s[n] = 0;  m++;
1.2       takayama  434:     INC_BUF ;
                    435:   }
1.5       takayama  436:   /* Check the escape sequence */
                    437:   if (strcmp(&(s[start]),"!quit;") == 0) {
1.8       takayama  438:     printv("Terminated the process ox_texmacs.\n");
                    439:     exit(0);
1.3       takayama  440:   }
1.11      takayama  441:   /* Check the escape sequence to change the global env. */
1.5       takayama  442:   if (strcmp(&(s[start]),"!verbatim;") == 0) {
1.33      takayama  443:     if (View != V_CFEP) printv("Output mode is changed to verbatim mode.");
1.8       takayama  444:     Format=0;
                    445:     return NULL;
1.5       takayama  446:   }
                    447:   if (strcmp(&(s[start]),"!latex;") == 0) {
1.8       takayama  448:     printv("Output mode is changed to latex/verbose.");
                    449:     Format = 1;
                    450:     return NULL;
1.5       takayama  451:   }
1.33      takayama  452:   if (strcmp(&(s[start]),"!cfep_png;") == 0) {
                    453:        if (pngCheck()) {
                    454:          if (View != V_CFEP) printv("Output mode is changed to cfep_png/verbose.");
                    455:       Format = 2;
                    456:     } else pngNotAvailable();
                    457:     return NULL;
                    458:   }
1.5       takayama  459:   if (strcmp(&(s[start]),"!asir;") == 0) {
1.8       takayama  460:     Format=1;
                    461:     TM_Engine=ASIR; startEngine(TM_Engine,"Asir");
                    462:     return NULL;
1.5       takayama  463:   }
                    464:   if (strcmp(&(s[start]),"!sm1;") == 0) {
1.8       takayama  465:     Format=0;
                    466:     TM_Engine=SM1; startEngine(TM_Engine,"sm1");
                    467:     return NULL;
1.5       takayama  468:   }
                    469:   if (strcmp(&(s[start]),"!k0;") == 0) {
1.8       takayama  470:     Format=0;
                    471:     TM_Engine=K0; startEngine(TM_Engine,"k0");
                    472:     return NULL;
1.5       takayama  473:   }
1.13      takayama  474:   if (strcmp(&(s[start]),"!reset;") == 0) {
1.23      takayama  475:        printf("%s",Data_begin_v[View]);
1.13      takayama  476:     KSexecuteString(" ox.engine oxreset ox.engine oxpopcmo ");
                    477:        ob = KSpop();
1.23      takayama  478:        printf("%s",Data_end[View]); fflush(stdout);
1.13      takayama  479:     return NULL;
                    480:   }
1.11      takayama  481:
1.32      takayama  482:   /* remove end$ or end; */
                    483:   if (TM_Engine == ASIR) {
                    484:     for (i=n-1; i>=4; i--) {
                    485:          if ((s[i-4]=='\n') && (s[i-3]=='e') && (s[i-2]=='n') && (s[i-1]=='d') && (s[i]=='$')) {
                    486:         s[i-3] = s[i-2] = s[i-1] = s[i] = ' '; break;
                    487:       }
                    488:          if ((s[i-4]=='\n') && (s[i-3]=='e') && (s[i-2]=='n') && (s[i-1]=='d') && (s[i]==';')) {
                    489:         s[i-3] = s[i-2] = s[i-1] = s[i] = ' '; break;
                    490:       }
                    491:     }
                    492:   }
                    493:
1.11      takayama  494:   /* Set TM_do_no_print */
                    495:   if (s[n-1] == '$' && TM_Engine == ASIR) {
                    496:        TM_do_not_print = 1; s[n-1] = ' ';
                    497:   } else if (s[n-1] == ';' && TM_Engine == SM1) {
                    498:        TM_do_not_print = 1; s[n-1] = ' ';
                    499:   } else TM_do_not_print = 0;
1.5       takayama  500:
1.2       takayama  501:   for (i=0; i < strlen(epilog); i++) {
1.8       takayama  502:     s[n++] = epilog[i];  s[n] = 0;
1.2       takayama  503:     INC_BUF ;
1.1       takayama  504:   }
                    505:   return s;
1.22      takayama  506: }
                    507:
                    508: static int end_of_input(int c) {
1.25      takayama  509:   if (c == End_of_input[View]) return 1;
                    510:   else return 0;
1.22      takayama  511: }
1.25      takayama  512:
1.22      takayama  513: static void setDefaultParameterForCfep() {
                    514:   Format = 0;
1.1       takayama  515: }
                    516:
                    517: static void printv(char *s) {
                    518:   int i;
1.23      takayama  519:   printf("%s",Data_begin_v[View]);
1.1       takayama  520:   printf("%s",s);
1.23      takayama  521:   printf("%s",Data_end[View]);
1.3       takayama  522: #ifdef DEBUG2
                    523:   fprintf(Dfp,"<%s>",s); fflush(Dfp);
                    524: #endif
1.1       takayama  525:   fflush(NULL);
                    526: }
                    527: static void printl(char *s) {
1.23      takayama  528:   printf("%s",Data_begin_l[View]);
1.4       takayama  529:   printf(" $ %s $ ",s);
1.23      takayama  530:   printf("%s",Data_end[View]);
1.17      takayama  531:   fflush(NULL);
                    532: }
                    533: static int isPS(char *s) {
                    534:   if (s[0] != '%') return 0;
                    535:   if (s[1] != '%') return 0;
                    536:   if (s[2] != '!') return 0;
                    537:   if (s[3] != 'P') return 0;
                    538:   if (s[4] != 'S') return 0;
                    539:   return 1;
                    540: }
                    541: static void printps(char *s) {
1.23      takayama  542:   printf("%s",Data_begin_ps[View]);
1.17      takayama  543:   printf("%s",s);
1.23      takayama  544:   printf("%s",Data_end[View]);
1.1       takayama  545:   fflush(NULL);
                    546: }
                    547: static void printp(char *s) {
1.23      takayama  548:   printf("%s",Data_begin_p[View]);
                    549:   printf("%s",Data_end[View]);
1.2       takayama  550:   printf("%s] ",s);
                    551:   fflush(NULL);
                    552: }
                    553: static void printCopyright(char *s) {
1.23      takayama  554:   printf("%s",Data_begin_v[View]);
1.15      takayama  555:   if (! NoCopyright) {
1.24      takayama  556:     printf("OpenXM engine (ox engine) interface with TeXmacs protocol.\n2004 (C) openxm.org");
                    557:     printf(" under the BSD license.  !asir; !sm1; !k0; !verbatim; !quit;\n");
1.15      takayama  558:     printf("Type in      !reset;     when the engine gets confused. ");
                    559:     printf("%s",s);
                    560:   }
1.23      takayama  561:   printf("%s",Data_end[View]);
1.5       takayama  562:   fflush(NULL);
                    563: }
                    564:
1.31      takayama  565: static void flushSm1() {
                    566:   KSexecuteString(" oxsm1.ccc ( [(flush)] extension pop ) oxsubmit ");
                    567: }
1.5       takayama  568: static int startEngine(int type,char *msg) {
1.21      takayama  569:   struct object ob = OINIT;
1.23      takayama  570:   printf("%s",Data_begin_v[View]);
1.5       takayama  571:   if (type == SM1) {
                    572:     if (!TM_sm1Started) KSexecuteString(" sm1connectr ");
1.8       takayama  573:     KSexecuteString(" /ox.engine oxsm1.ccc def ");
1.10      takayama  574:     /* Initialize the setting of sm1. */
                    575:     KSexecuteString("  oxsm1.ccc ( [(cmoLispLike) 0] extension ) oxsubmit ");
                    576:     KSexecuteString("  oxsm1.ccc ( ox_server_mode ) oxsubmit ");
1.31      takayama  577:     KSexecuteString("  oxsm1.ccc ( ( ) message (------------- Message from sm1 ----------------)message ) oxsubmit ");
                    578:        flushSm1();
1.8       takayama  579:     TM_sm1Started = 1;
1.10      takayama  580:        /* Welcome message.  BUG. Copyright should be returned by a function. */
1.15      takayama  581:     if (! NoCopyright) {
                    582:       printf("Kan/StackMachine1                         1991 April --- 2004.\n");
                    583:       printf("This software may be freely distributed as is with no warranty expressed. \n");
                    584:       printf("See OpenXM/Copyright/Copyright.generic\n");
                    585:       printf("Info: http://www.math.kobe-u.ac.jp/KAN, kan@math.kobe-u.ac.jp.\n");
                    586:       printf("0 usages to show a list of functions. \n(keyword) usages to see a short description\n");
                    587:     }
1.30      takayama  588:     printf("%s\n",msg); fflush(NULL);
1.5       takayama  589:   }else if (type == K0) {
                    590:     if (!TM_k0Started) KSexecuteString(" k0connectr ");
1.8       takayama  591:     KSexecuteString(" /ox.engine oxk0.ccc def ");
                    592:     TM_k0Started = 1;
                    593:     printf("%s\n",msg);
1.5       takayama  594:   }else{
                    595:     if (!TM_asirStarted) KSexecuteString(" asirconnectr ");
1.8       takayama  596:     KSexecuteString(" /ox.engine oxasir.ccc def ");
                    597:     TM_asirStarted = 1;
                    598:     printf("%s\n",msg);
1.24      takayama  599:     if ((!NoCopyright) && ((char *)getenv("ASIR_CONFIG") != NULL)) {
1.15      takayama  600:       KSexecuteString(" oxasir.ccc (copyright()+asir_contrib_copyright();) oxsubmit oxasir.ccc oxpopstring ");
1.24      takayama  601:       ob = KSpop();
                    602:       if (ob.tag == Sdollar) {
                    603:         printf("%s",ob.lc.str);
                    604:       }
                    605:     }else if ((!NoCopyright) && ((char *)getenv("ASIR_CONFIG") == NULL)) {
                    606:       KSexecuteString(" oxasir.ccc (copyright();) oxsubmit oxasir.ccc oxpopstring ");
1.15      takayama  607:       ob = KSpop();
                    608:       if (ob.tag == Sdollar) {
                    609:         printf("%s",ob.lc.str);
                    610:       }
1.8       takayama  611:     }
1.7       takayama  612:     /* Initialize the setting of asir. */
1.32      takayama  613:     if (AsirInitFile) {  /* cf. asir-contrib/packages/src/cfep-init.rr */
                    614:          unsigned char *ss;
                    615:          ss = (unsigned char *)GC_malloc(strlen(AsirInitFile)+256);
1.33      takayama  616:          sprintf((char *)ss," oxasir.ccc (load(\"%s\");) oxsubmit oxasir.ccc oxgeterrors length 0 gt { (Error in loading asirInitFile) message} { } ifelse ",AsirInitFile);
1.32      takayama  617:          /* printf("Loading --asirInitFile %s\n",AsirInitFile); */
                    618:          KSexecuteString(ss);
                    619:     }
1.7       takayama  620:     KSexecuteString(" oxasir.ccc (if(1) {  Xm_server_mode = 1; Xm_helpdir = \"help-eg\";  } else { ; } ;) oxsubmit oxasir.ccc oxpopcmo ");
                    621:     KSexecuteString(" oxasir.ccc (if(1) {  ctrl(\"message\",0);  } else { ; } ;) oxsubmit oxasir.ccc oxpopcmo ");
                    622:     /* bug; if ctrl is written with Xm_helpdir = ... without oxpopcmo, then it does
                    623:        not work. */
1.9       takayama  624:     KSexecuteString(" oxasir.ccc (print(\"----------- Messages from asir ------------------------------\")$ ) oxsubmit oxasir.ccc oxpopcmo ");
1.5       takayama  625:   }
1.23      takayama  626:   printf("%s",Data_end[View]);
1.1       takayama  627:   fflush(NULL);
                    628: }
1.2       takayama  629:
                    630: /* test data
                    631:
                    632: 1.  print("hello"); print("afo");
                    633:
                    634:     1+2;
                    635:
                    636: 2. def foo(N) { for (I=0; I<10; I++) {   --> error
                    637:
                    638:    3+5;
                    639:
                    640: 4.  print("hello"); shift+return print("afo");
                    641:
                    642: */
1.27      takayama  643:
                    644: static void myEncoder(int c) {
                    645:   putchar(0xf8 | (0x3 & (c >> 6)));
                    646:   putchar(0xf0 | (0x7 & (c >> 3)));
                    647:   putchar(0xf0 | (0x7 & c));
                    648: }
                    649: static void myEncoderS(unsigned char *s) {
                    650:   int i,n;
1.33      takayama  651:   n = strlen((char *)s);
1.27      takayama  652:   for (i = 0; i<n ; i++) myEncoder(s[i]);
                    653: }
                    654: static void myEncoderSn(unsigned char *s,int n) {
                    655:   int i;
                    656:   for (i = 0; i<n ; i++) myEncoder(s[i]);
                    657: }
                    658: static void outputStringToTunnel0(int channel, unsigned char *s, int n,int view) {
                    659:   unsigned char ts[128];
                    660:   int i;
                    661:   if (view == GENERIC) {
                    662:     printf("{%d<%d ",channel,n+1);
                    663:     for (i=0; i<n; i++) putchar(s[i]);
                    664:     printf("%c>}",0);
                    665:   }else if (view == V_CFEP) {
1.33      takayama  666:     sprintf((char *)ts,"{%d<%d ",channel,n+1);
1.27      takayama  667:     myEncoderS(ts);
                    668:     myEncoderSn(s,n); myEncoder(0);
1.33      takayama  669:     myEncoderS((unsigned char *)">}");
1.27      takayama  670:   }
                    671:   fflush(stdout);
                    672: }
1.28      takayama  673: #define LINE_FEED 0xc   /* ^L */
1.27      takayama  674: static void outputStringToTunnel(int channel, unsigned char *s, int view) {
                    675:   int start, i;
                    676:   start = i = 0;
                    677:   while (s[i] != 0) {
1.28      takayama  678:        if (s[i] == LINE_FEED) {
                    679:          outputStringToTunnel0(channel,&(s[start]),i-start,view);
1.27      takayama  680:          start = i+1;
                    681:        }
                    682:        i++;
                    683:   }
                    684: }
                    685:
1.2       takayama  686:
1.33      takayama  687: static void pngSendFile(char *path) {
                    688:   char s[1024];
                    689:   if (strlen(path) > 1000) return;
                    690:   sprintf(s,"showFile,%s",path);
                    691:   outputStringToTunnel0(10,(unsigned char *)s,strlen(s),View);
                    692:   printf("\n");
                    693:   fflush(NULL);
                    694: }
                    695: static int pngCheck(void) {
                    696:   static int checked = 0;
                    697:   static int ans = 0;
                    698:   if (checked) return ans;
                    699:   checked = 1;
                    700:   if (!getCommandPath("latex")) return 0;
1.34    ! takayama  701:   if (!getCommandPath("dvipng")) return 0;
1.33      takayama  702:   ans = 1;  return 1;
                    703: }
                    704: static void pngNotAvailable(void) {
                    705:   char *s = "notAvailable";
                    706:   outputStringToTunnel0(10,(unsigned char *)s,strlen(s),View);
                    707:   fflush(NULL);
                    708: }
1.2       takayama  709:

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