File: [local] / OpenXM / src / kxx / ox_texmacs.c (download)
Revision 1.6, Mon Mar 1 12:55:03 2004 UTC (20 years, 7 months ago) by takayama
Branch: MAIN
Changes since 1.5: +2 -3
lines
Fixed a bug on a procedure for receiving an interruption.
Example. Stop at the prompt, and type in 1+1;
|
/* $OpenXM: OpenXM/src/kxx/ox_texmacs.c,v 1.6 2004/03/01 12:55:03 takayama Exp $ */
#include <stdio.h>
#include <setjmp.h>
#include <signal.h>
#include "ox_kan.h"
#include "serversm.h"
#if defined(__CYGWIN__)
#define JMP_BUF sigjmp_buf
#define SETJMP(env) sigsetjmp(env,1)
#define LONGJMP(env,p) siglongjmp(env,p)
#else
#define JMP_BUF jmp_buf
#define SETJMP(env) setjmp(env)
#define LONGJMP(env,p) longjmp(env,p)
#endif
/*
#define DEBUG
*/
#define DEBUG2
#ifdef DEBUG
#define DATA_BEGIN_V "<S type=verbatim>" /* "\002verbatim:" */
#define DATA_BEGIN_L "<S type=latex>" /* "\002latex:" */
#define DATA_BEGIN_P "<S type=prompt>" /* "\002channel:prompt " */
#define DATA_END "</S>" /* "\005" */
#else
#define DATA_BEGIN_V "\002verbatim:"
#define DATA_BEGIN_L "\002latex:"
#define DATA_BEGIN_P "\002prompt:"
#define DATA_END "\005"
#endif
/*
#define END_OF_INPUT '#'
*/
#define END_OF_INPUT '\n'
/* Table for the engine type. */
#define ASIR 1
#define SM1 2
#define K0 3
extern int Quiet;
extern JMP_BUF EnvOfStackMachine;
int Format=1; /* 1 : latex mode */
int OutputLimit_for_TeXmacs = (1024*10);
int TM_Engine = ASIR ;
int TM_asirStarted = 0;
int TM_sm1Started = 0;
int TM_k0Started = 0;
void ctrlC();
struct object KpoString(char *s);
char *KSpopString(void);
static char *readString(FILE *fp,char *prolog, char *eplog);
static void printv(char *s);
static void printl(char *s);
static void printp(char *s);
static void printCopyright(char *s);
static int startEngine(int type,char *msg);
/* tail -f /tmp/debug-texmacs.txt
Debug output to understand the timing problem of pipe interface.
*/
FILE *Dfp;
main() {
char *s;
char *r;
char *sys;
struct object ob;
int irt=0;
int vmode=1;
#ifdef DEBUG2
Dfp = fopen("/tmp/debug-texmacs.txt","w");
#endif
/* Set consts */
sys = "asir> ";
Quiet = 1;
/* Initialize kanlib (gc is also initialized) */
KSstart();
/* Main loop */
printf("%s",DATA_BEGIN_V);
printCopyright("");
/* Load ox engine here */
/* engine id should be set to ox.engine */
KSexecuteString(" [(parse) (ox.sm1) pushfile] extension ");
startEngine(TM_Engine," ");
if (signal(SIGINT,SIG_IGN) != SIG_IGN) {
signal(SIGINT,ctrlC);
}
irt = 0;
while(1) {
/* printp(sys); no prompt */
if (SETJMP(EnvOfStackMachine)) {
KSexecuteString(" ctrlC-hook "); /* Execute User Defined functions. */
if (signal(SIGINT,SIG_IGN) != SIG_IGN) {
signal(SIGINT,ctrlC);
}
irt = 1;
continue;
} else { }
if (!irt) {
printf("%s",DATA_END); fflush(stdout);
}
irt = 0;
if (TM_Engine == K0) {
s=readString(stdin, " ", " "); /* see test data */
}else if (TM_Engine == SM1) {
s=readString(stdin, " ", " "); /* see test data */
}else{
s=readString(stdin, "if (1) { ", " ; }else{ }"); /* see test data */
}
if (s == NULL) { irt = 1; continue; }
if (!irt) printf("%s",DATA_BEGIN_V);
KSexecuteString(" ox.engine ");
ob = KpoString(s);
KSpush(ob);
KSexecuteString(" oxsubmit ");
/* Get the result in string. */
if (Format == 1) {
/* translate to latex form */
KSexecuteString(" ox.engine oxpushcmotag ox.engine oxpopcmo ");
ob = KSpop();
vmode = 0;
/* printf("id=%d\n",ob.tag); bug: matrix return 17 instead of Sinteger
or error. */
if (ob.tag == Sinteger) {
/* printf("cmotag=%d\n",ob.lc.ival);*/
if (ob.lc.ival == CMO_ERROR2) {
vmode = 1;
}
if (ob.lc.ival == CMO_STRING) {
vmode = 1;
}
}
if (vmode) {
KSexecuteString(" ox.engine oxpopstring ");
r = KSpopString();
}else{
KSexecuteString(" ox.engine 1 oxpushcmo ox.engine (print_tex_form) oxexec ");
KSexecuteString(" ox.engine oxpopstring ");
r = KSpopString();
}
if (strlen(r) < OutputLimit_for_TeXmacs) {
if (vmode) printv(r); else printl(r);
} else printv("Output is too large.\n");
}else{
KSexecuteString(" ox.engine oxpopstring ");
r = KSpopString();
if (strlen(r) < OutputLimit_for_TeXmacs) printv(r);
else printv("Output is too large.\n");
}
}
}
#define SB_SIZE 1024
#define INC_BUF if (n >= limit-3) { \
tmp = s; \
limit *= 2; \
s = (char *) sGC_malloc(limit); \
if (s == NULL) { \
fprintf(stderr,"No more memory.\n"); \
exit(10); \
} \
strcpy(s,tmp); \
}
/* */
static char *readString(FILE *fp, char *prolog, char *epilog) {
int n = 0;
static int limit = 0;
static char *s;
int c;
char *tmp;
int i;
int m;
int start;
if (limit == 0) {
limit = 1024;
s = (char *)sGC_malloc(limit);
if (s == NULL) {
fprintf(stderr,"No more memory.\n");
exit(10);
}
}
s[0] = 0; n = 0; m = 0;
for (i=0; i < strlen(prolog); i++) {
s[n++] = prolog[i]; s[n] = 0;
INC_BUF ;
}
start = n;
while ((c = fgetc(fp)) != EOF) {
#ifdef DEBUG2
fprintf(Dfp,"[%x] ",c); fflush(Dfp);
#endif
if (c == END_OF_INPUT) {
if (oxSocketSelect0(0,1)) {
/* If there remains data in the stream,
read the remaining data. */
if (c == '\n') c=' ';
s[n++] = c; s[n] = 0; m++;
INC_BUF ;
continue;
}
break;
}
if (c == '\n') c=' ';
s[n++] = c; s[n] = 0; m++;
INC_BUF ;
}
/* Check the escape sequence */
if (strcmp(&(s[start]),"!quit;") == 0) {
printv("Terminated the process ox_texmacs.\n");
exit(0);
}
/* Check the escape sequence to change the globa env. */
if (strcmp(&(s[start]),"!verbatim;") == 0) {
printv("Output mode is changed to verbatim mode.");
Format=0;
return NULL;
}
if (strcmp(&(s[start]),"!latex;") == 0) {
printv("Output mode is changed to latex/verbose.");
Format = 1;
return NULL;
}
if (strcmp(&(s[start]),"!asir;") == 0) {
Format=1;
TM_Engine=ASIR; startEngine(TM_Engine,"Asir");
return NULL;
}
if (strcmp(&(s[start]),"!sm1;") == 0) {
Format=0;
TM_Engine=SM1; startEngine(TM_Engine,"sm1");
return NULL;
}
if (strcmp(&(s[start]),"!k0;") == 0) {
Format=0;
TM_Engine=K0; startEngine(TM_Engine,"k0");
return NULL;
}
for (i=0; i < strlen(epilog); i++) {
s[n++] = epilog[i]; s[n] = 0;
INC_BUF ;
}
return s;
}
static void printv(char *s) {
int i;
printf("%s",DATA_BEGIN_V);
printf("%s",s);
printf("%s",DATA_END);
#ifdef DEBUG2
fprintf(Dfp,"<%s>",s); fflush(Dfp);
#endif
fflush(NULL);
}
static void printl(char *s) {
printf("%s",DATA_BEGIN_L);
printf(" $ %s $ ",s);
printf("%s",DATA_END);
fflush(NULL);
}
static void printp(char *s) {
printf("%s",DATA_BEGIN_P);
printf("%s",DATA_END);
printf("%s] ",s);
fflush(NULL);
}
static void printCopyright(char *s) {
printf("%s",DATA_BEGIN_V);
printf("OpenXM engine (ox engine) interface for TeXmacs\n2004 (C) openxm.org");
printf(" under the BSD licence. !asir, !sm1, !k0.");
printf("%s",s);
printf("%s",DATA_END);
fflush(NULL);
}
static int startEngine(int type,char *msg) {
struct object ob;
printf("%s",DATA_BEGIN_V);
if (type == SM1) {
if (!TM_sm1Started) KSexecuteString(" sm1connectr ");
KSexecuteString(" /ox.engine oxsm1.ccc def ");
TM_sm1Started = 1;
printf("%s\n",msg);
}else if (type == K0) {
if (!TM_k0Started) KSexecuteString(" k0connectr ");
KSexecuteString(" /ox.engine oxk0.ccc def ");
TM_k0Started = 1;
printf("%s\n",msg);
}else{
if (!TM_asirStarted) KSexecuteString(" asirconnectr ");
KSexecuteString(" /ox.engine oxasir.ccc def ");
TM_asirStarted = 1;
printf("%s\n",msg);
KSexecuteString(" oxasir.ccc (copyright();) oxsubmit oxasir.ccc oxpopstring ");
ob = KSpop();
if (ob.tag == Sdollar) {
printf("%s",ob.lc.str);
}
}
printf("%s",DATA_END);
fflush(NULL);
}
/* test data
1. print("hello"); print("afo");
1+2;
2. def foo(N) { for (I=0; I<10; I++) { --> error
3+5;
4. print("hello"); shift+return print("afo");
*/