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Annotation of OpenXM/src/kxx/ox_texmacs.c, Revision 1.46

1.46    ! takayama    1: /* $OpenXM: OpenXM/src/kxx/ox_texmacs.c,v 1.45 2019/05/24 02:25:12 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:
1.37      takayama   12: #if defined(__CYGWIN__) || defined(__MSYS__)
1.1       takayama   13: #define JMP_BUF sigjmp_buf
1.37      takayama   14: #define SETJMP(env)  MYSIGSETJMP(env,1)
                     15: #define LONGJMP(env,p)  MYSIGLONGJMP(env,p)
1.1       takayama   16: #else
                     17: #define JMP_BUF jmp_buf
1.37      takayama   18: #define SETJMP(env)  MYSETJMP(env)
                     19: #define LONGJMP(env,p)  MYLONGJMP(env,p)
1.1       takayama   20: #endif
                     21:
1.3       takayama   22: /*
                     23: #define DEBUG
                     24: */
1.46    ! takayama   25:
1.43      takayama   26: #define DEBUG2
1.46    ! takayama   27:
1.3       takayama   28:
1.23      takayama   29: /* Type of View part (user interface engine) */
                     30: #define  GENERIC      0   /* DEBUG, xml */
                     31: #define  V_TEXMACS    1
                     32: #define  V_CFEP       2
1.40      takayama   33: #define  V_QFEP       3
1.42      takayama   34: #define  V_SAGE       4
1.43      takayama   35: #define  V_JUPYTER       5
1.23      takayama   36: int View       = V_TEXMACS ;
                     37:
                     38: char *Data_begin_v[] = {
                     39:   "<S type=verbatim>",
                     40:   "\002verbatim:",
                     41:   "\002",
1.42      takayama   42:   "",
1.43      takayama   43:   "",
1.40      takayama   44:   ""
1.23      takayama   45: };
                     46: char *Data_begin_l[] = {
                     47:   "<S type=latex>",
                     48:   "\002latex:",
1.40      takayama   49:   "\002latex:",
1.42      takayama   50:   "",
1.43      takayama   51:   "",
1.40      takayama   52:   ""
1.23      takayama   53: };
                     54: char *Data_begin_p[] = {
                     55:   "<S type=prompt>",
                     56:   "\002prompt:",
1.40      takayama   57:   "\002prompt:",
1.42      takayama   58:   "",
1.43      takayama   59:   "",
1.40      takayama   60:   ""
1.23      takayama   61: };
                     62: char *Data_begin_ps[] = {
                     63:   "<S type=postscript>",
                     64:   "\002ps:",
1.40      takayama   65:   "\002ps:",
1.42      takayama   66:   "",
1.43      takayama   67:   "",
1.40      takayama   68:   ""
1.23      takayama   69: };
                     70: char *Data_end[] = {
                     71:   "</S>",
                     72:   "\005",
1.40      takayama   73:   "\n\005",    /* \n is not a part of the protocol. */
1.42      takayama   74:   "",
1.43      takayama   75:   "",          /* SAGE */
                     76:   "\n"
1.23      takayama   77: };
                     78:
1.25      takayama   79: /* todo:  start_of_input */
1.2       takayama   80:
1.25      takayama   81: char End_of_input[] = {
                     82:   0x5,              /* Use ^E and Return to end the input. */
                     83:   '\n',  /* TEXMACS_END_OF_INPUT. 0xd should be used for multiple lines. */
1.40      takayama   84:   0x5,    /* CFEP_END_OF_INPUT    */
1.42      takayama   85:   0x5,
1.43      takayama   86:   '\n',   /* SAGE cf. __init__ */
                     87:   '\n'
1.42      takayama   88: };
                     89:
1.43      takayama   90: /* Note! if you give more than 10 Views, increase the number 10  below.
                     91:    See the option --prompt which should be given after --view is set.
                     92: */
                     93: char *Prompt[10]={
1.42      takayama   94:   "generic>", /* generic */
                     95:   "", /* texmacs */
                     96:   "",    /* cfep */
                     97:   "",   /* qfep */
1.43      takayama   98:   "\nasir>",    /* SAGE */
                     99:   "\nPEXPECT_PROMPT>"
1.25      takayama  100: };
1.1       takayama  101:
1.42      takayama  102:
1.5       takayama  103: /* Table for the engine type. */
                    104: #define ASIR          1
                    105: #define SM1           2
                    106: #define K0            3
                    107:
1.1       takayama  108: extern int Quiet;
                    109: extern JMP_BUF EnvOfStackMachine;
1.19      takayama  110: extern int Calling_ctrlC_hook;
1.20      takayama  111: extern int RestrictedMode, RestrictedMode_saved;
1.33      takayama  112: int Format=1;  /* 1 : latex mode, 2: cfep_png */
1.3       takayama  113: int OutputLimit_for_TeXmacs = (1024*10);
1.1       takayama  114:
1.22      takayama  115:
1.5       takayama  116: int TM_Engine  = ASIR ;
                    117: int TM_asirStarted = 0;
                    118: int TM_sm1Started  = 0;
                    119: int TM_k0Started  = 0;
1.7       takayama  120: int TM_do_not_print = 0;
1.5       takayama  121:
1.15      takayama  122: int Xm_noX = 0;
                    123: int NoCopyright = 0;
1.25      takayama  124: int Cpp = 0;                 /* Use cpp before sending to the engine. */
                    125: int EngineLogToStdout = 0;   /* Do not run the ox engine inside xterm. */
1.15      takayama  126:
1.33      takayama  127: char *AsirInitFile = NULL;
1.32      takayama  128:
1.29      takayama  129: char *LanguageResource = NULL;
1.41      takayama  130: int TM_quiet = 0;
1.29      takayama  131:
1.1       takayama  132: void ctrlC();
                    133: struct object KpoString(char *s);
                    134: char *KSpopString(void);
                    135:
1.2       takayama  136: static char *readString(FILE *fp,char *prolog, char *eplog);
1.1       takayama  137: static void printv(char *s);
                    138: static void printl(char *s);
                    139: static void printp(char *s);
1.17      takayama  140: static void printps(char *s);
1.2       takayama  141: static void printCopyright(char *s);
1.5       takayama  142: static int startEngine(int type,char *msg);
1.17      takayama  143: static int isPS(char *s);
1.22      takayama  144: static int end_of_input(int c);
                    145: static void setDefaultParameterForCfep();
1.42      takayama  146: static void setDefaultParameterForSage();
1.43      takayama  147: static void setDefaultParameterForJupyter();
1.2       takayama  148:
1.27      takayama  149: static void myEncoder(int c);
                    150: static void myEncoderS(unsigned char *s);
                    151: static void myEncoderSn(unsigned char *s,int n);
                    152: static void outputStringToTunnel0(int channel, unsigned char *s, int size, int view);
                    153: static void outputStringToTunnel(int channel, unsigned char *s,  int view);
                    154:
1.33      takayama  155: static void pngSendFile(char *path);
                    156: static int pngCheck(void);
                    157: static void pngNotAvailable(void);
                    158: static char *pngGetResult();
                    159:
1.31      takayama  160: static void flushSm1();
1.45      takayama  161: static int is_substr_of(char a[],char s[]);
                    162: static void hexout(FILE *fp,char s[]);
                    163: static int mystrncmp(char a[],char s[]);
                    164:
1.31      takayama  165:
1.2       takayama  166: /* tail -f /tmp/debug-texmacs.txt
                    167:    Debug output to understand the timing problem of pipe interface.
                    168: */
1.3       takayama  169: FILE *Dfp;
1.1       takayama  170:
1.10      takayama  171: main(int argc,char *argv[]) {
1.1       takayama  172:   char *s;
                    173:   char *r;
                    174:   char *sys;
1.21      takayama  175:   struct object ob = OINIT;
1.3       takayama  176:   int irt=0;
1.4       takayama  177:   int vmode=1;
1.7       takayama  178:   char *openxm_home;
                    179:   char *asir_config;
1.33      takayama  180:   char *path;
1.10      takayama  181:   int i;
1.1       takayama  182:
1.7       takayama  183:
                    184:
1.3       takayama  185: #ifdef DEBUG2
                    186:   Dfp = fopen("/tmp/debug-texmacs.txt","w");
                    187: #endif
1.41      takayama  188:
                    189:   TM_quiet=0;
                    190:   for (i=1; i<argc; i++) {
                    191:     if (strcmp(argv[i],"--quiet")==0) {
                    192:       TM_quiet=1;
                    193:     }
                    194:   }
1.36      takayama  195:   /* Initialize kanlib (gc is also initialized) */
1.41      takayama  196:   if (TM_quiet) {
                    197:     KSstart_quiet();
                    198:   }else{
                    199:     KSstart();
                    200:   }
1.1       takayama  201:   /* Set consts */
                    202:   Quiet = 1;
1.10      takayama  203:   for (i=1; i<argc; i++) {
1.22      takayama  204:     if (strcmp(argv[i],"--view") == 0) {
                    205:       i++;
                    206:       if (strcmp(argv[i],"texmacs") == 0) {
                    207:         View = V_TEXMACS;
                    208:       }else if (strcmp(argv[i],"cfep")==0) {
                    209:         View = V_CFEP; setDefaultParameterForCfep();
1.40      takayama  210:       }else if (strcmp(argv[i],"qfep")==0) {
                    211:        View = V_QFEP; setDefaultParameterForCfep();
1.42      takayama  212:       }else if (strcmp(argv[i],"sage")==0) {
                    213:        View = V_SAGE; setDefaultParameterForSage();
1.43      takayama  214:       }else if (strcmp(argv[i],"jupyter")==0) {
                    215:        View = V_JUPYTER; setDefaultParameterForJupyter();
1.22      takayama  216:       }else{
1.25      takayama  217:         View = GENERIC;
1.22      takayama  218:         /* printv("Unknown view type.\n"); */
                    219:       }
                    220:     } else if (strcmp(argv[i],"--sm1") == 0) {
                    221:       TM_Engine = SM1;
                    222:     }else if (strcmp(argv[i],"--asir") == 0) {
                    223:       TM_Engine = ASIR;
                    224:     }else if (strcmp(argv[i],"--k0") == 0) {
                    225:       TM_Engine = K0;
1.14      takayama  226:     }else if (strcmp(argv[i],"--outputLimit") == 0) {
                    227:       i++;
                    228:       sscanf(argv[i],"%d",&OutputLimit_for_TeXmacs);
1.15      takayama  229:     }else if (strcmp(argv[i],"--noLogWindow") == 0) {
1.22      takayama  230:       Xm_noX = 1;
1.15      takayama  231:     }else if (strcmp(argv[i],"--noCopyright") == 0) {
1.22      takayama  232:       NoCopyright = 1;
1.25      takayama  233:     }else if (strcmp(argv[i],"--cpp") == 0) {
                    234:       Cpp = 1;
                    235:     }else if (strcmp(argv[i],"--engineLogToStdout") == 0) {
                    236:       EngineLogToStdout = 1;
1.29      takayama  237:     }else if (strcmp(argv[i],"--languageResource") == 0) {
                    238:       i++;
                    239:       LanguageResource = (char *)sGC_malloc(strlen(argv[i])+80);
                    240:       sprintf(LanguageResource,
                    241:                          " /localizedString.file (%s) def localizedString.load ",argv[i]);
1.32      takayama  242:     }else if (strcmp(argv[i],"--asirInitFile") == 0) {
                    243:       i++;
1.33      takayama  244:       AsirInitFile = (char *)sGC_malloc(strlen(argv[i])+80);
1.32      takayama  245:       sprintf(AsirInitFile,"%s",argv[i]);
1.41      takayama  246:     }else if (strcmp(argv[i],"--quiet") == 0) {
                    247:       /* it is already set. Ignore. */
1.43      takayama  248:     }else if (strcmp(argv[i],"--prompt")==0) {
                    249:       i++;
                    250:       Prompt[View] = (char *)sGC_malloc(strlen(argv[i])+2);
                    251:       strcpy(Prompt[View],argv[i]);
1.22      takayama  252:     }else{
                    253:       /* printv("Unknown option\n"); */
                    254:     }
1.10      takayama  255:   }
1.1       takayama  256:
1.23      takayama  257:   openxm_home = (char *) getenv("OpenXM_HOME");
                    258:   asir_config = (char *) getenv("ASIR_CONFIG");
                    259:   if (openxm_home == NULL)  {
                    260:     printv("Error. The environmental variable OpenXM_HOME is not set.\nStart the texmacs with openxm texmacs or ox_texmacs by openxm ox_texmacs\nBye...");
                    261:     exit(10);
                    262:   }
                    263:
1.1       takayama  264:
1.3       takayama  265:   /* Main loop */
1.23      takayama  266:   printf("%s",Data_begin_v[View]);
                    267:   if ((asir_config == NULL) && (View == V_TEXMACS)) {
                    268:     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");
                    269:
                    270:   }
                    271:
1.3       takayama  272:   printCopyright("");
                    273:
1.23      takayama  274:
1.1       takayama  275:   /* Load ox engine here */
                    276:   /* engine id should be set to ox.engine */
                    277:   KSexecuteString(" [(parse) (ox.sm1) pushfile] extension ");
1.15      takayama  278:   if (Xm_noX) KSexecuteString(" /Xm_noX 1 def ");
1.26      takayama  279:   if (EngineLogToStdout) KSexecuteString(" /Xm_engineLogToStdout 1 def ");
1.29      takayama  280:   if (LanguageResource != NULL) KSexecuteString(LanguageResource);
1.5       takayama  281:   startEngine(TM_Engine," ");
1.1       takayama  282:
1.39      takayama  283:   if (mysignal(SIGINT,SIG_IGN) != SIG_IGN) {
                    284:     mysignal(SIGINT,ctrlC);
1.1       takayama  285:   }
1.3       takayama  286:
                    287:   irt = 0;
1.1       takayama  288:   while(1) {
1.8       takayama  289:     /* printp(sys);  no prompt */
                    290:     if (SETJMP(EnvOfStackMachine)) {
1.19      takayama  291:       if (!Calling_ctrlC_hook) {
1.20      takayama  292:         Calling_ctrlC_hook = 1; RestrictedMode = 0;
1.19      takayama  293:         KSexecuteString(" ctrlC-hook "); /* Execute User Defined functions. */
1.20      takayama  294:         RestrictedMode = RestrictedMode_saved;
1.19      takayama  295:       }
                    296:       Calling_ctrlC_hook = 0;
1.39      takayama  297:       if (mysignal(SIGINT,SIG_IGN) != SIG_IGN) {
                    298:         mysignal(SIGINT,ctrlC);
1.8       takayama  299:       }
                    300:       irt = 1;
                    301:       continue;
                    302:     } else {  }
                    303:     if (!irt) {
1.42      takayama  304:       if (View != V_SAGE) printf("%s",Data_end[View]); fflush(stdout);
1.8       takayama  305:     }
                    306:     irt = 0;
1.7       takayama  307:
                    308:     /* Reading the input. */
1.43      takayama  309:     if ((View == V_SAGE) || (View == V_JUPYTER)) {
                    310:       if (s != NULL) {printf("%s",Prompt[View]); fflush(stdout);}
                    311:       else {printf("%s",&(Prompt[View][1])); fflush(stdout);}
                    312:     }else{
                    313:       printf("%s",Prompt[View]); fflush(stdout);
                    314:     }
1.8       takayama  315:     if (TM_Engine == K0) {
                    316:       s=readString(stdin, " ", " "); /* see test data */
                    317:     }else if (TM_Engine == SM1) {
                    318:       s=readString(stdin, " ", " "); /* see test data */
                    319:     }else{
                    320:       s=readString(stdin, "if (1) { ", " ; }else{ }"); /* see test data */
                    321:     }
1.5       takayama  322:
1.8       takayama  323:     if (s == NULL) { irt = 1; continue; }
1.23      takayama  324:     if (!irt) printf("%s",Data_begin_v[View]);
1.7       takayama  325:     /* Evaluate the input on the engine */
1.27      takayama  326:     KSexecuteString(" ox.engine oxclearstack ");
1.1       takayama  327:     KSexecuteString(" ox.engine ");
1.7       takayama  328:     ob = KpoString(s);
1.8       takayama  329:     KSpush(ob);
                    330:     KSexecuteString(" oxsubmit ");
1.31      takayama  331:
                    332:        if (TM_Engine == SM1) flushSm1();
1.8       takayama  333:
1.27      takayama  334:     /* Get the result in string for cfep. */
                    335:     if (View != V_TEXMACS) {
                    336:       KSexecuteString(" ox.engine oxgeterrors ");
                    337:       ob = KSpop();
                    338:       if (ob.tag == Sarray) {
                    339:         if (getoaSize(ob) > 0) {
                    340:           ob = getoa(ob,0);
                    341:           KSpush(ob);
                    342:           KSexecuteString(" translateErrorForCfep ");
                    343:           r = KSpopString();
                    344:           outputStringToTunnel(0,(unsigned char *)r,View);
                    345:         }
                    346:       }
                    347:       if (!TM_do_not_print) {
1.33      takayama  348:         if (Format == 2) { /* png mode */
                    349:           r = pngGetResult();
                    350:         }else{
                    351:           KSexecuteString(" ox.engine oxpopstring ");
                    352:           r = KSpopString();
                    353:         }
1.27      takayama  354:         printv(r);
                    355:       }else{
                    356:         KSexecuteString(" ox.engine 1 oxpops ");
                    357:         KSexecuteString(" ox.engine 0 oxpushcmo ox.engine oxpopcmo ");
                    358:         ob = KSpop();
                    359:         printv("");
                    360:       }
                    361:       continue;
                    362:     }
                    363:     /* Get the result in string for texmacs  */
1.33      takayama  364:     if ((Format == 1) && (! TM_do_not_print)) {
1.8       takayama  365:       /* translate to latex form */
                    366:       KSexecuteString(" ox.engine oxpushcmotag ox.engine oxpopcmo ");
                    367:       ob = KSpop();
                    368:       vmode = 0;
                    369:       /* printf("id=%d\n",ob.tag); bug: matrix return 17 instead of Sinteger
                    370:        or error. */
                    371:       if (ob.tag == Sinteger) {
                    372:         /* printf("cmotag=%d\n",ob.lc.ival);*/
                    373:         if (ob.lc.ival == CMO_ERROR2) {
                    374:           vmode = 1;
                    375:         }
                    376:         if (ob.lc.ival == CMO_STRING) {
                    377:           vmode = 1;
                    378:         }
                    379:       }
                    380:       if (vmode) {
                    381:         KSexecuteString(" ox.engine oxpopstring ");
                    382:         r = KSpopString();
                    383:       }else{
                    384:         KSexecuteString(" ox.engine 1 oxpushcmo ox.engine (print_tex_form) oxexec  ");
                    385:         KSexecuteString(" ox.engine oxpopstring ");
                    386:         r = KSpopString();
                    387:       }
1.17      takayama  388:       if (isPS(r)) {
                    389:         printps(r);
                    390:       }else{
                    391:         if (vmode) printv(r);
                    392:         else{
                    393:           if (strlen(r) < OutputLimit_for_TeXmacs) {
                    394:             printl(r);
                    395:           } else printv("Output is too large.\n");
                    396:         }
                    397:       }
1.8       takayama  398:     }else{
                    399:       if (!TM_do_not_print) {
                    400:         KSexecuteString(" ox.engine oxpopstring ");
                    401:         r = KSpopString();
1.17      takayama  402:         printv(r);
1.8       takayama  403:       }else{
                    404:         KSexecuteString(" ox.engine 1 oxpops "); /* Discard the result. */
1.12      takayama  405:         /* Push and pop dummy data to wait until the computation finishes. */
                    406:         KSexecuteString(" ox.engine 0 oxpushcmo ox.engine oxpopcmo ");
                    407:         ob = KSpop();
1.8       takayama  408:         printv("");
                    409:       }
                    410:     }
1.27      takayama  411:     /* note that there is continue above. */
1.1       takayama  412:   }
                    413: }
                    414:
1.33      takayama  415: static char *pngGetResult(void) {
                    416:   struct object ob;
                    417:   int vmode;
                    418:   char *r;
                    419:   char *path;
                    420:
                    421:   /* translate to latex form */
                    422:   KSexecuteString(" ox.engine oxpushcmotag ox.engine oxpopcmo ");
                    423:   ob = KSpop();
                    424:   vmode = 0;
                    425:   /* printf("id=%d\n",ob.tag); bug: matrix return 17 instead of Sinteger
                    426:      or error. */
                    427:   if (ob.tag == Sinteger) {
                    428:     /* printf("cmotag=%d\n",ob.lc.ival);*/
                    429:     if (ob.lc.ival == CMO_ERROR2) {
                    430:       vmode = 1;
                    431:     }
                    432:     if (ob.lc.ival == CMO_STRING) {
                    433:       vmode = 1;
                    434:     }
                    435:   }
                    436:   if (vmode) {
                    437:     KSexecuteString(" ox.engine oxpopstring ");
                    438:     r = KSpopString();
                    439:   }else{
                    440:     KSexecuteString(" ox.engine 1 oxpushcmo ox.engine (print_png_form2) oxexec  ");
                    441:     KSexecuteString(" ox.engine oxpopcmo /tmp_ox_texmacs set tmp_ox_texmacs 0 get ");
                    442:     r = KSpopString();  /* input form */
                    443:     KSexecuteString(" tmp_ox_texmacs 1 get ");
                    444:     path = KSpopString(); /* path name of the png file. */
                    445:     pngSendFile(path);
                    446:   }
                    447:   return r;
                    448: }
                    449:
1.1       takayama  450: #define SB_SIZE 1024
1.8       takayama  451: #define INC_BUF     if (n >= limit-3) { \
                    452:       tmp = s; \
                    453:       limit *= 2;  \
                    454:       s = (char *) sGC_malloc(limit); \
                    455:       if (s == NULL) { \
                    456:         fprintf(stderr,"No more memory.\n"); \
                    457:         exit(10); \
                    458:       } \
                    459:       strcpy(s,tmp); \
                    460:     }
1.2       takayama  461: /*   */
1.43      takayama  462: static char *Sss=NULL;
                    463: static int Sss_size=10240;
                    464:
1.2       takayama  465: static char *readString(FILE *fp, char *prolog, char *epilog) {
1.1       takayama  466:   int n = 0;
                    467:   static int limit = 0;
                    468:   static char *s;
                    469:   int c;
                    470:   char *tmp;
1.2       takayama  471:   int i;
1.3       takayama  472:   int m;
                    473:   int start;
1.21      takayama  474:   struct object ob = OINIT;
1.1       takayama  475:   if (limit == 0) {
1.8       takayama  476:     limit = 1024;
                    477:     s = (char *)sGC_malloc(limit);
                    478:     if (s == NULL) {
                    479:       fprintf(stderr,"No more memory.\n");
                    480:       exit(10);
                    481:     }
1.1       takayama  482:   }
1.2       takayama  483:   s[0] = 0; n = 0; m = 0;
                    484:   for (i=0; i < strlen(prolog); i++) {
1.8       takayama  485:     s[n++] = prolog[i];  s[n] = 0;
1.2       takayama  486:     INC_BUF ;
                    487:   }
1.3       takayama  488:   start = n;
1.1       takayama  489:   while ((c = fgetc(fp)) != EOF) {
1.3       takayama  490: #ifdef DEBUG2
1.43      takayama  491:     fprintf(Dfp,"[%x]%c ",c,c); fflush(Dfp);
1.3       takayama  492: #endif
1.22      takayama  493:     if (end_of_input(c)) {
1.18      takayama  494:       /* If there remains data in the stream,
1.25      takayama  495:          read the remaining data. (for debug) */
1.43      takayama  496:       /*
                    497:       if ((View == V_JUPYTER) || (View == V_SAGE)) {
                    498:         if (oxSocketSelect0(0,1)) {
                    499: #ifdef DEBUG2
                    500:           fprintf(Dfp,"<%x>%c ",c,c); fflush(Dfp);
                    501: #endif
                    502:           if (c == '\n') c=' ';
                    503:           s[n++] = c; s[n] = 0;  m++;
                    504:           INC_BUF ;
                    505:           continue;
                    506:         }
1.8       takayama  507:       }
1.18      takayama  508:       */
1.45      takayama  509:       if (View == V_JUPYTER) {
                    510:         s[n++] = c; s[n] = 0;  m++;
                    511:         INC_BUF ;
                    512:       }
1.8       takayama  513:       break;
                    514:     }
1.18      takayama  515:     if ( c == '\v') c=' ';
1.8       takayama  516:     s[n++] = c; s[n] = 0;  m++;
1.2       takayama  517:     INC_BUF ;
                    518:   }
1.43      takayama  519:   if ((c == EOF) && (start == n)) exit(0);
1.5       takayama  520:   /* Check the escape sequence */
1.45      takayama  521:   if (mystrncmp(&(s[start]),"!quit;") == 0) {
1.8       takayama  522:     printv("Terminated the process ox_texmacs.\n");
                    523:     exit(0);
1.3       takayama  524:   }
1.43      takayama  525:   if (((View == V_JUPYTER) || (View == V_SAGE)) &&
1.45      takayama  526:       ((mystrncmp(&(s[start]),"quit")==0) || (mystrncmp(&(s[start]),"quit()")==0))) {
1.43      takayama  527:     printv("Terminated the process ox_texmacs.\n");
                    528:     exit(0);
                    529:   }
                    530:   if ((View == V_JUPYTER) &&
1.45      takayama  531:       (mystrncmp(&(s[start]),"version")==0)) {
                    532:     strcpy(&(s[start]),"version");
1.43      takayama  533:     s[n=strlen(s)]='('; s[++n]=0; INC_BUF;
                    534:     s[n++]=')'; s[n]=0; INC_BUF;
                    535:   }
1.11      takayama  536:   /* Check the escape sequence to change the global env. */
1.5       takayama  537:   if (strcmp(&(s[start]),"!verbatim;") == 0) {
1.33      takayama  538:     if (View != V_CFEP) printv("Output mode is changed to verbatim mode.");
1.8       takayama  539:     Format=0;
                    540:     return NULL;
1.5       takayama  541:   }
                    542:   if (strcmp(&(s[start]),"!latex;") == 0) {
1.8       takayama  543:     printv("Output mode is changed to latex/verbose.");
                    544:     Format = 1;
                    545:     return NULL;
1.5       takayama  546:   }
1.33      takayama  547:   if (strcmp(&(s[start]),"!cfep_png;") == 0) {
                    548:        if (pngCheck()) {
                    549:          if (View != V_CFEP) printv("Output mode is changed to cfep_png/verbose.");
                    550:       Format = 2;
                    551:     } else pngNotAvailable();
                    552:     return NULL;
                    553:   }
1.5       takayama  554:   if (strcmp(&(s[start]),"!asir;") == 0) {
1.8       takayama  555:     Format=1;
                    556:     TM_Engine=ASIR; startEngine(TM_Engine,"Asir");
                    557:     return NULL;
1.5       takayama  558:   }
                    559:   if (strcmp(&(s[start]),"!sm1;") == 0) {
1.8       takayama  560:     Format=0;
                    561:     TM_Engine=SM1; startEngine(TM_Engine,"sm1");
                    562:     return NULL;
1.5       takayama  563:   }
                    564:   if (strcmp(&(s[start]),"!k0;") == 0) {
1.8       takayama  565:     Format=0;
                    566:     TM_Engine=K0; startEngine(TM_Engine,"k0");
                    567:     return NULL;
1.5       takayama  568:   }
1.13      takayama  569:   if (strcmp(&(s[start]),"!reset;") == 0) {
1.23      takayama  570:        printf("%s",Data_begin_v[View]);
1.13      takayama  571:     KSexecuteString(" ox.engine oxreset ox.engine oxpopcmo ");
                    572:        ob = KSpop();
1.23      takayama  573:        printf("%s",Data_end[View]); fflush(stdout);
1.13      takayama  574:     return NULL;
                    575:   }
1.11      takayama  576:
1.32      takayama  577:   /* remove end$ or end; */
                    578:   if (TM_Engine == ASIR) {
                    579:     for (i=n-1; i>=4; i--) {
                    580:          if ((s[i-4]=='\n') && (s[i-3]=='e') && (s[i-2]=='n') && (s[i-1]=='d') && (s[i]=='$')) {
                    581:         s[i-3] = s[i-2] = s[i-1] = s[i] = ' '; break;
                    582:       }
                    583:          if ((s[i-4]=='\n') && (s[i-3]=='e') && (s[i-2]=='n') && (s[i-1]=='d') && (s[i]==';')) {
                    584:         s[i-3] = s[i-2] = s[i-1] = s[i] = ' '; break;
                    585:       }
                    586:     }
1.43      takayama  587:
                    588:     /* 2019.03.28 for jupyter */
1.46    ! takayama  589:     if ((View == V_JUPYTER) && (mystrncmp(&(s[start]),"base_prompt") != 0)
1.45      takayama  590:         &&(mystrncmp(&(s[start]),"version()") != 0)) {
1.43      takayama  591:       if (Sss == NULL) {
                    592:           Sss = (char *)sGC_malloc(Sss_size);
                    593:           Sss[0] = 0;
                    594:       }
                    595:       if (Sss_size < strlen(Sss)+strlen(s)+strlen(epilog)-10) {
                    596:         Sss_size = 2*Sss_size;
                    597:         if (Sss_size < 0) { fprintf(stderr,"Fatal error: too big string\n"); exit(-1); }
                    598:         char *sss_tmp = (char *)sGC_malloc(Sss_size);
                    599:        strcpy(sss_tmp,Sss);
                    600:         Sss=sss_tmp;
                    601:       }
                    602:       strcpy(&(Sss[strlen(Sss)]),&(s[start]));
                    603:       for (i=strlen(Sss); i>=0; i--) {
                    604:        if (Sss[i] < 0x20) continue;
1.44      takayama  605:         if ((Sss[i] == ';') && (Sss[i-1] == ';')) {
1.43      takayama  606:           /* construct s and return s */
                    607:           Sss[i] = ' ';
                    608:           s = (char *) sGC_malloc(strlen(Sss)+strlen(prolog)+strlen(epilog)+10);
                    609:           sprintf(s,"%s%s%s",prolog,Sss,epilog);
                    610:           Sss[0]=0;
                    611: #ifdef DEBUG2
                    612:           fprintf(Dfp,"#By Sss: %s#\n",s); fflush(Dfp);
                    613: #endif
                    614:           return s;
                    615:         }else break;
                    616:       }
                    617:       return NULL;
                    618:     }
                    619:   }else{
                    620: #ifdef DEBUG2
                    621:     fprintf(Dfp,"#base_prompt or version()#\n",s); fflush(Dfp);
                    622: #endif
1.32      takayama  623:   }
1.43      takayama  624:   /* end 2019.03.28 for jupyter. */
1.32      takayama  625:
1.11      takayama  626:   /* Set TM_do_no_print */
                    627:   if (s[n-1] == '$' && TM_Engine == ASIR) {
                    628:        TM_do_not_print = 1; s[n-1] = ' ';
                    629:   } else if (s[n-1] == ';' && TM_Engine == SM1) {
                    630:        TM_do_not_print = 1; s[n-1] = ' ';
                    631:   } else TM_do_not_print = 0;
1.5       takayama  632:
1.2       takayama  633:   for (i=0; i < strlen(epilog); i++) {
1.8       takayama  634:     s[n++] = epilog[i];  s[n] = 0;
1.2       takayama  635:     INC_BUF ;
1.1       takayama  636:   }
1.45      takayama  637: #ifdef DEBUG2
                    638:   fprintf(Dfp,"#By normal readString:%s\n",s); hexout(Dfp,s); fprintf(Dfp,"\n"); fflush(Dfp);
                    639: #endif
1.1       takayama  640:   return s;
1.22      takayama  641: }
                    642:
                    643: static int end_of_input(int c) {
1.25      takayama  644:   if (c == End_of_input[View]) return 1;
                    645:   else return 0;
1.22      takayama  646: }
1.25      takayama  647:
1.22      takayama  648: static void setDefaultParameterForCfep() {
                    649:   Format = 0;
1.1       takayama  650: }
1.42      takayama  651: static void setDefaultParameterForSage() {
                    652:   Format = 0;
                    653: }
1.43      takayama  654: static void setDefaultParameterForJupyter() {
                    655:   Format = 0;
                    656: }
1.1       takayama  657:
                    658: static void printv(char *s) {
                    659:   int i;
1.23      takayama  660:   printf("%s",Data_begin_v[View]);
1.1       takayama  661:   printf("%s",s);
1.23      takayama  662:   printf("%s",Data_end[View]);
1.3       takayama  663: #ifdef DEBUG2
1.45      takayama  664:   fprintf(Dfp,"printv:<%s>",s); fflush(Dfp);
1.3       takayama  665: #endif
1.1       takayama  666:   fflush(NULL);
                    667: }
                    668: static void printl(char *s) {
1.23      takayama  669:   printf("%s",Data_begin_l[View]);
1.4       takayama  670:   printf(" $ %s $ ",s);
1.23      takayama  671:   printf("%s",Data_end[View]);
1.17      takayama  672:   fflush(NULL);
                    673: }
                    674: static int isPS(char *s) {
                    675:   if (s[0] != '%') return 0;
                    676:   if (s[1] != '%') return 0;
                    677:   if (s[2] != '!') return 0;
                    678:   if (s[3] != 'P') return 0;
                    679:   if (s[4] != 'S') return 0;
                    680:   return 1;
                    681: }
                    682: static void printps(char *s) {
1.23      takayama  683:   printf("%s",Data_begin_ps[View]);
1.17      takayama  684:   printf("%s",s);
1.23      takayama  685:   printf("%s",Data_end[View]);
1.1       takayama  686:   fflush(NULL);
                    687: }
                    688: static void printp(char *s) {
1.23      takayama  689:   printf("%s",Data_begin_p[View]);
                    690:   printf("%s",Data_end[View]);
1.2       takayama  691:   printf("%s] ",s);
                    692:   fflush(NULL);
                    693: }
                    694: static void printCopyright(char *s) {
1.15      takayama  695:   if (! NoCopyright) {
1.42      takayama  696:     printf("%s",Data_begin_v[View]);
1.24      takayama  697:     printf("OpenXM engine (ox engine) interface with TeXmacs protocol.\n2004 (C) openxm.org");
                    698:     printf(" under the BSD license.  !asir; !sm1; !k0; !verbatim; !quit;\n");
1.15      takayama  699:     printf("Type in      !reset;     when the engine gets confused. ");
                    700:     printf("%s",s);
1.42      takayama  701:     printf("%s",Data_end[View]);
1.15      takayama  702:   }
1.5       takayama  703:   fflush(NULL);
                    704: }
                    705:
1.31      takayama  706: static void flushSm1() {
                    707:   KSexecuteString(" oxsm1.ccc ( [(flush)] extension pop ) oxsubmit ");
                    708: }
1.5       takayama  709: static int startEngine(int type,char *msg) {
1.21      takayama  710:   struct object ob = OINIT;
1.42      takayama  711:   if (!TM_quiet) printf("%s",Data_begin_v[View]);
1.5       takayama  712:   if (type == SM1) {
                    713:     if (!TM_sm1Started) KSexecuteString(" sm1connectr ");
1.8       takayama  714:     KSexecuteString(" /ox.engine oxsm1.ccc def ");
1.10      takayama  715:     /* Initialize the setting of sm1. */
                    716:     KSexecuteString("  oxsm1.ccc ( [(cmoLispLike) 0] extension ) oxsubmit ");
                    717:     KSexecuteString("  oxsm1.ccc ( ox_server_mode ) oxsubmit ");
1.31      takayama  718:     KSexecuteString("  oxsm1.ccc ( ( ) message (------------- Message from sm1 ----------------)message ) oxsubmit ");
                    719:        flushSm1();
1.8       takayama  720:     TM_sm1Started = 1;
1.10      takayama  721:        /* Welcome message.  BUG. Copyright should be returned by a function. */
1.15      takayama  722:     if (! NoCopyright) {
                    723:       printf("Kan/StackMachine1                         1991 April --- 2004.\n");
                    724:       printf("This software may be freely distributed as is with no warranty expressed. \n");
                    725:       printf("See OpenXM/Copyright/Copyright.generic\n");
                    726:       printf("Info: http://www.math.kobe-u.ac.jp/KAN, kan@math.kobe-u.ac.jp.\n");
                    727:       printf("0 usages to show a list of functions. \n(keyword) usages to see a short description\n");
                    728:     }
1.30      takayama  729:     printf("%s\n",msg); fflush(NULL);
1.5       takayama  730:   }else if (type == K0) {
                    731:     if (!TM_k0Started) KSexecuteString(" k0connectr ");
1.8       takayama  732:     KSexecuteString(" /ox.engine oxk0.ccc def ");
                    733:     TM_k0Started = 1;
                    734:     printf("%s\n",msg);
1.5       takayama  735:   }else{
                    736:     if (!TM_asirStarted) KSexecuteString(" asirconnectr ");
1.8       takayama  737:     KSexecuteString(" /ox.engine oxasir.ccc def ");
                    738:     TM_asirStarted = 1;
                    739:     printf("%s\n",msg);
1.24      takayama  740:     if ((!NoCopyright) && ((char *)getenv("ASIR_CONFIG") != NULL)) {
1.15      takayama  741:       KSexecuteString(" oxasir.ccc (copyright()+asir_contrib_copyright();) oxsubmit oxasir.ccc oxpopstring ");
1.24      takayama  742:       ob = KSpop();
                    743:       if (ob.tag == Sdollar) {
                    744:         printf("%s",ob.lc.str);
                    745:       }
                    746:     }else if ((!NoCopyright) && ((char *)getenv("ASIR_CONFIG") == NULL)) {
                    747:       KSexecuteString(" oxasir.ccc (copyright();) oxsubmit oxasir.ccc oxpopstring ");
1.15      takayama  748:       ob = KSpop();
                    749:       if (ob.tag == Sdollar) {
                    750:         printf("%s",ob.lc.str);
                    751:       }
1.8       takayama  752:     }
1.7       takayama  753:     /* Initialize the setting of asir. */
1.32      takayama  754:     if (AsirInitFile) {  /* cf. asir-contrib/packages/src/cfep-init.rr */
                    755:          unsigned char *ss;
1.36      takayama  756:          ss = (unsigned char *)sGC_malloc(strlen(AsirInitFile)+256);
1.33      takayama  757:          sprintf((char *)ss," oxasir.ccc (load(\"%s\");) oxsubmit oxasir.ccc oxgeterrors length 0 gt { (Error in loading asirInitFile) message} { } ifelse ",AsirInitFile);
1.32      takayama  758:          /* printf("Loading --asirInitFile %s\n",AsirInitFile); */
                    759:          KSexecuteString(ss);
                    760:     }
1.35      ohara     761:     KSexecuteString(" oxasir.ccc (if(1) {  Xm_server_mode = 1; Xm_helpdir = \"help-en\";  } else { ; } ;) oxsubmit oxasir.ccc oxpopcmo ");
1.7       takayama  762:     KSexecuteString(" oxasir.ccc (if(1) {  ctrl(\"message\",0);  } else { ; } ;) oxsubmit oxasir.ccc oxpopcmo ");
                    763:     /* bug; if ctrl is written with Xm_helpdir = ... without oxpopcmo, then it does
                    764:        not work. */
1.9       takayama  765:     KSexecuteString(" oxasir.ccc (print(\"----------- Messages from asir ------------------------------\")$ ) oxsubmit oxasir.ccc oxpopcmo ");
1.5       takayama  766:   }
1.42      takayama  767:   if (!TM_quiet) printf("%s",Data_end[View]);
1.1       takayama  768:   fflush(NULL);
                    769: }
1.2       takayama  770:
                    771: /* test data
                    772:
                    773: 1.  print("hello"); print("afo");
                    774:
                    775:     1+2;
                    776:
                    777: 2. def foo(N) { for (I=0; I<10; I++) {   --> error
                    778:
                    779:    3+5;
                    780:
                    781: 4.  print("hello"); shift+return print("afo");
                    782:
                    783: */
1.27      takayama  784:
                    785: static void myEncoder(int c) {
                    786:   putchar(0xf8 | (0x3 & (c >> 6)));
                    787:   putchar(0xf0 | (0x7 & (c >> 3)));
                    788:   putchar(0xf0 | (0x7 & c));
                    789: }
                    790: static void myEncoderS(unsigned char *s) {
                    791:   int i,n;
1.33      takayama  792:   n = strlen((char *)s);
1.27      takayama  793:   for (i = 0; i<n ; i++) myEncoder(s[i]);
                    794: }
                    795: static void myEncoderSn(unsigned char *s,int n) {
                    796:   int i;
                    797:   for (i = 0; i<n ; i++) myEncoder(s[i]);
                    798: }
                    799: static void outputStringToTunnel0(int channel, unsigned char *s, int n,int view) {
                    800:   unsigned char ts[128];
                    801:   int i;
                    802:   if (view == GENERIC) {
                    803:     printf("{%d<%d ",channel,n+1);
                    804:     for (i=0; i<n; i++) putchar(s[i]);
                    805:     printf("%c>}",0);
                    806:   }else if (view == V_CFEP) {
1.33      takayama  807:     sprintf((char *)ts,"{%d<%d ",channel,n+1);
1.27      takayama  808:     myEncoderS(ts);
                    809:     myEncoderSn(s,n); myEncoder(0);
1.33      takayama  810:     myEncoderS((unsigned char *)">}");
1.27      takayama  811:   }
                    812:   fflush(stdout);
                    813: }
1.28      takayama  814: #define LINE_FEED 0xc   /* ^L */
1.27      takayama  815: static void outputStringToTunnel(int channel, unsigned char *s, int view) {
                    816:   int start, i;
                    817:   start = i = 0;
                    818:   while (s[i] != 0) {
1.28      takayama  819:        if (s[i] == LINE_FEED) {
                    820:          outputStringToTunnel0(channel,&(s[start]),i-start,view);
1.27      takayama  821:          start = i+1;
                    822:        }
                    823:        i++;
                    824:   }
                    825: }
                    826:
1.2       takayama  827:
1.33      takayama  828: static void pngSendFile(char *path) {
                    829:   char s[1024];
                    830:   if (strlen(path) > 1000) return;
                    831:   sprintf(s,"showFile,%s",path);
                    832:   outputStringToTunnel0(10,(unsigned char *)s,strlen(s),View);
                    833:   printf("\n");
                    834:   fflush(NULL);
                    835: }
                    836: static int pngCheck(void) {
                    837:   static int checked = 0;
                    838:   static int ans = 0;
                    839:   if (checked) return ans;
                    840:   checked = 1;
                    841:   if (!getCommandPath("latex")) return 0;
1.34      takayama  842:   if (!getCommandPath("dvipng")) return 0;
1.33      takayama  843:   ans = 1;  return 1;
                    844: }
                    845: static void pngNotAvailable(void) {
                    846:   char *s = "notAvailable";
                    847:   outputStringToTunnel0(10,(unsigned char *)s,strlen(s),View);
                    848:   fflush(NULL);
                    849: }
1.2       takayama  850:
1.45      takayama  851: /* Check if a is a substring of s */
                    852: static int is_substr_of(char a[],char s[]) {
                    853:   int n,m,i,j;
                    854:   n = strlen(s);
                    855:   m = strlen(a);
                    856:   for (i=0; i<n-m; i++) {
                    857:         for (j=0; j<m; j++) {
                    858:           if (s[i+j] != a[j]) break;
                    859:           if (j == m-1) return 1;
                    860:         }
                    861:   }
                    862:   return 0;
                    863: }
                    864:
                    865: static void hexout(FILE *fp,char s[]) {
                    866:   int i;
                    867:   for (i=0; i<strlen(s); i++) fprintf(fp,"%2x ",(unsigned char)s[i]);
                    868: }
                    869: static int mystrncmp(char a[],char s[]) {
                    870:   int r;
                    871:   r=strncmp(a,s,strlen(s));
                    872: #ifdef DEBUG2
                    873:   fprintf(Dfp,"mystrncmp(%s,%s)=%d\n",a,s,r); fflush(Dfp);
                    874: #endif
                    875:   return r;
                    876: }
                    877:

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