592 lines
11 KiB
C
592 lines
11 KiB
C
#include <u.h>
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#include <libc.h>
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#include <bio.h>
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#include <thread.h>
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#include "win.h"
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#include "adict.h"
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enum
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{
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STACK = 8192,
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};
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char *prog = "adict";
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char *lprog = "/bin/adict";
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char *xprog = "/bin/dict";
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char *dict, *pattern, *curaddr[MAXMATCH], *curone, *args[6], buffer[80];
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char abuffer[80], fbuffer[80], pbuffer[80];
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int curindex, count, Eopen, Mopen;
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Win Mwin, Ewin, Dwin;
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void openwin(char*, char*, Win*, int);
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void handle(Win*, int);
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void rexec(void*);
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void pexec(void*);
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int getaddr(char*);
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void
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usage(void)
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{
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fprint(2, "usage: %s [-d dictname] [pattern]\n", argv0);
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threadexitsall(nil);
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}
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int mainstacksize = STACK;
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void
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threadmain(int argc, char** argv)
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{
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ARGBEGIN{
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case 'd':
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dict = strdup(ARGF());
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break;
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default:
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usage();
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}ARGEND
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/* if running as other name, note that fact */
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if(access(argv0, AEXIST) == 0)
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lprog = argv0;
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switch(argc){
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case 1:
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pattern = pbuffer;
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strcpy(pattern,argv[0]);
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if(dict == nil)
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dict = "pgw";
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break;
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case 0:
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break;
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default:
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usage();
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}
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if ((dict == nil) && (pattern == nil))
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openwin(prog,"", &Dwin, Dictwin);
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if (pattern == nil)
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openwin(prog,"",&Ewin, Entrywin);
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if ((count = getaddr(pattern)) <= 1)
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openwin(prog,"Prev Next", &Ewin, Entrywin);
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else
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openwin(prog, "", &Mwin, Matchwin);
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}
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static int
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procrexec(char *xprog, ...)
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{
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int fpipe[2];
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void *rexarg[4];
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Channel *c;
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va_list va;
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int i;
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char *p;
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pipe(fpipe);
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va_start(va, xprog);
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p = xprog;
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for(i=0; p && i+1<nelem(args); i++){
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args[i] = p;
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p = va_arg(va, char*);
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}
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args[i] = nil;
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c = chancreate(sizeof(ulong), 0);
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rexarg[0] = xprog;
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rexarg[1] = args;
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rexarg[2] = fpipe;
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rexarg[3] = c;
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proccreate(rexec, rexarg, STACK);
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recvul(c);
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chanfree(c);
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close(fpipe[1]);
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return fpipe[0];
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}
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int
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getaddr(char *pattern)
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{
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/* Get char offset into dictionary of matches. */
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int fd, i;
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Biobuf inbuf;
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char *bufptr;
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char *obuf;
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if (pattern == nil) {
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curone = nil;
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curindex = 0;
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curaddr[curindex] = nil;
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return 0;
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}
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sprint(buffer,"/%s/A", pattern);
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fd = procrexec(xprog, "-d", dict, "-c", buffer, nil);
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Binit(&inbuf, fd, OREAD);
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i = 0;
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curindex = 0;
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while ((bufptr = Brdline(&inbuf, '\n')) != nil && (i < (MAXMATCH-1))) {
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bufptr[Blinelen(&inbuf)-1] = 0;
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obuf=bufptr;
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while (bufptr[0] != '#' && bufptr[0] != 0) bufptr++;
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if(bufptr[0] == 0)
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print("whoops buf «%s»\n", obuf);
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curaddr[i] = malloc(strlen(bufptr));
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strcpy(curaddr[i], bufptr);
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i++;
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}
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curaddr[i] = nil;
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if (i == MAXMATCH)
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fprint(2, "Too many matches!\n");
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Bterm(&inbuf);
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close(fd);
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curone = curaddr[curindex];
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return(i);
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}
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char*
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getpattern(char *addr)
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{
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/* Get the pattern corresponding to an absolute address.*/
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int fd;
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char *res, *t;
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res = nil;
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sprint(buffer,"%sh", addr);
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fd = procrexec(xprog, "-d", dict, "-c", buffer, nil);
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if (read(fd, pbuffer, 80) > 80)
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fprint(2, "Error in getting addres from dict.\n");
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else {
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t = pbuffer;
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/* remove trailing whitespace, newline */
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if (t != nil){
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while(*t != 0 && *t != '\n')
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t++;
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if(t == 0 && t > pbuffer)
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t--;
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while(t >= pbuffer && (*t==' ' || *t=='\n' || *t=='\t' || *t=='\r'))
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*t-- = 0;
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}
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res = pbuffer;
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}
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close(fd);
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return(res);
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}
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char*
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chgaddr(int dir)
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{
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/* Increment or decrement the current address (curone). */
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int fd;
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char *res, *t;
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res = nil;
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if (dir < 0)
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sprint(buffer,"%s-a", curone);
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else
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sprint(buffer,"%s+a", curone);
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fd = procrexec(xprog, "-d", dict, "-c", buffer, nil);
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if (read(fd, abuffer, 80) > 80)
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fprint(2, "Error in getting addres from dict.\n");
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else {
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res = abuffer;
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while (*res != '#') res++;
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t = res;
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while ((*t != '\n') && (t != nil)) t++;
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if (t != nil) *t = 0;
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}
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close(fd);
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return(res);
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}
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void
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dispdicts(Win *cwin)
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{
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/* Display available dictionaries in window. */
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int fd, nb, i;
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char buf[1024], *t;
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fd = procrexec(xprog, "-d", "?", nil);
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wreplace(cwin, "0,$","",0); /* Clear window */
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while ((nb = read(fd, buf, 1024)) > 0) {
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t = buf;
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i = 0;
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if (strncmp("Usage", buf, 5) == 0) { /* Remove first line. */
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while (t[0] != '\n') {
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t++;
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i++;
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}
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t++;
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i++;
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}
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wwritebody(cwin, t, nb-i);
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}
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close(fd);
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wclean(cwin);
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}
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void
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dispentry(Win *cwin)
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{
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/* Display the current selection in window. */
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int fd, nb;
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char buf[BUFSIZE];
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if (curone == nil) {
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if (pattern != nil) {
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sprint(buf,"Pattern not found.\n");
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wwritebody(cwin, buf, 19);
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wclean(cwin);
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}
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return;
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}
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sprint(buffer,"%sp", curone);
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fd = procrexec(xprog, "-d", dict, "-c", buffer, nil);
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wreplace(cwin, "0,$","",0); /* Clear window */
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while ((nb = read(fd, buf, BUFSIZE)) > 0) {
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wwritebody(cwin, buf, nb);
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}
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close(fd);
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wclean(cwin);
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}
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void
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dispmatches(Win *cwin)
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{
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/* Display the current matches. */
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int fd, nb;
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char buf[BUFSIZE];
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sprint(buffer,"/%s/H", pattern);
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fd = procrexec(xprog, "-d", dict, "-c", buffer, nil);
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while ((nb = read(fd, buf, BUFSIZE)) > 0)
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wwritebody(cwin, buf, nb);
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close(fd);
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wclean(cwin);
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}
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char*
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format(char *s)
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{
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/* Format a string to be written in window tag. Acme doesn't like */
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/* non alpha-num's in the tag line. */
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char *t, *h;
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t = fbuffer;
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if (s == nil) {
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*t = 0;
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return t;
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}
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strcpy(t, s);
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h = t;
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while (*t != 0) {
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if (!(((*t >= 'a') && (*t <= 'z')) ||
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((*t >= 'A') && (*t <= 'Z')) ||
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((*t >= '0') && (*t <= '9'))))
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*t = '_';
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t++;
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}
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if (strlen(h) > MAXTAG)
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h[MAXTAG] = 0;
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if (strcmp(s,h) == 0) return s;
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return h;
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}
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void
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openwin(char *name, char *buttons, Win *twin, int wintype)
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{
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char buf[80];
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wnew(twin);
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if (wintype == Dictwin)
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sprint(buf,"%s",name);
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else
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if ((wintype == Entrywin) && (count > 1))
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sprint(buf,"%s/%s/%s/%d",name, dict, format(pattern), curindex+1);
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else
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sprint(buf,"%s/%s/%s",name, dict, format(pattern));
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wname(twin, buf);
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wtagwrite(twin, buttons, strlen(buttons));
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wclean(twin);
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wdormant(twin);
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if (wintype == Dictwin)
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dispdicts(twin);
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if (wintype == Matchwin) {
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Mopen = True;
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dispmatches(twin);
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}
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if (wintype == Entrywin) {
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Eopen = True;
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dispentry(twin);
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}
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handle(twin, wintype);
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}
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void
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vopenwin(void *v)
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{
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void **arg;
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char *name, *buttons;
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Win *twin;
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int wintype;
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arg = v;
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name = arg[0];
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buttons = arg[1];
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twin = arg[2];
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wintype = (int)arg[3];
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sendul(arg[4], 0);
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openwin(name, buttons, twin, wintype);
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threadexits(nil);
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}
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void
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procopenwin(char *name, char *buttons, Win *twin, int wintype)
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{
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void *arg[5];
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Channel *c;
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c = chancreate(sizeof(ulong), 0);
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arg[0] = name;
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arg[1] = buttons;
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arg[2] = twin;
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arg[3] = (void*)wintype;
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arg[4] = c;
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proccreate(vopenwin, arg, STACK);
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recvul(c);
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chanfree(c);
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}
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void
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rexec(void *v)
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{
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void **arg;
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char *prog;
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char **args;
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int *fd;
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Channel *c;
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arg = v;
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prog = arg[0];
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args = arg[1];
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fd = arg[2];
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c = arg[3];
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rfork(RFENVG|RFFDG);
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dup(fd[1], 1);
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close(fd[1]);
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close(fd[0]);
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procexec(c, prog, args);
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fprint(2, "Remote pipe execution failed: %s %r\n", prog);
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abort();
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threadexits(nil);
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}
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void
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pexec(void *v)
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{
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void **arg;
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char *prog;
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char **args;
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Channel *c;
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arg = v;
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prog = arg[0];
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args = arg[1];
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c = arg[2];
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procexec(c, prog, args);
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fprint(2, "Remote execution failed: %s %r\n", prog);
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abort();
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threadexits(nil);
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}
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void
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procpexec(char *prog, char **args)
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{
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void *rexarg[4];
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Channel *c;
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c = chancreate(sizeof(ulong), 0);
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rexarg[0] = prog;
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rexarg[1] = args;
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rexarg[2] = c;
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proccreate(pexec, rexarg, STACK);
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recvul(c);
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chanfree(c);
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}
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void
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kill(void)
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{
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/* Kill all processes related to this one. */
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int fd;
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sprint(buffer, "/proc/%d/notepg", getpid());
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fd = open(buffer, OWRITE);
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rfork(RFNOTEG);
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write(fd, "kill", 4);
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}
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int
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command(char *com, Win *w, int wintype)
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{
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char *buf;
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if (strncmp(com, "Del", 3) == 0) {
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switch(wintype){
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case Entrywin:
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if (wdel(w)) {
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Eopen = False;
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threadexits(nil);
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}
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break;
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case Dictwin:
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if (wdel(w))
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threadexits(nil);
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break;
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case Matchwin:
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kill();
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if (Eopen)
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if (~wdel(&Ewin)) /* Remove the entry window */
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wdel(&Ewin);
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if (!wdel(w))
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wdel(w);
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threadexits(nil);
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break;
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}
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return True;
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}
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if (strncmp(com, "Next", 4) == 0){
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if (curone != nil) {
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curone = chgaddr(1);
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buf = getpattern(curone);
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sprint(buffer,"%s/%s/%s", prog, dict, format(buf));
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wname(w, buffer);
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dispentry(w);
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}
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return True;
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}
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if (strncmp(com, "Prev",4) == 0){
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if (curone != nil) {
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curone = chgaddr(-1);
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buf = getpattern(curone);
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sprint(buffer,"%s/%s/%s", prog, dict, format(buf));
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wname(w, buffer);
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dispentry(w);
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}
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return True;
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}
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if (strncmp(com, "Nmatch",6) == 0){
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if (curaddr[++curindex] == nil)
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curindex = 0;
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curone = curaddr[curindex];
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if (curone != nil) {
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sprint(buffer,"%s/%s/%s/%d",prog,dict,format(pattern),curindex+1);
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wname(w, buffer);
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dispentry(w);
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}
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return True;
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}
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return False;
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}
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void
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handle(Win *w, int wintype)
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{
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Event e, e2, ea, etoss;
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char *s, *t, buf[80];
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int tmp, na;
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while (True) {
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wevent(w, &e);
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switch(e.c2){
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default:
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/* fprint(2,"unknown message %c%c\n", e.c1, e.c2); */
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break;
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case 'i':
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/* fprint(2,"'%s' inserted in tag at %d\n", e.b, e.q0);*/
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break;
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case 'I':
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/* fprint(2,"'%s' inserted in body at %d\n", e.b, e.q0);*/
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break;
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case 'd':
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/* fprint(2, "'%s' deleted in tag at %d\n", e.b, e.q0);*/
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break;
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case 'D':
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/* fprint(2, "'%s' deleted in body at %d\n", e.b, e.q0);*/
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break;
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case 'x':
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case 'X': /* Execute command. */
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if (e.flag & 2)
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wevent(w, &e2);
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if(e.flag & 8){
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wevent(w, &ea);
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wevent(w, &etoss);
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na = ea.nb;
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} else
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na = 0;
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s = e.b;
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if ((e.flag & 2) && e.nb == 0)
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s = e2.b;
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if(na){
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t = malloc(strlen(s)+1+na+1);
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snprint(t, strlen(s)+1+na+1, "%s %s", s, ea.b);
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s = t;
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}
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/* if it's a long message, it can't be for us anyway */
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if(!command(s, w, wintype)) /* send it back */
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wwriteevent(w, &e);
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if(na)
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free(s);
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break;
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case 'l':
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case 'L': /* Look for something. */
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if (e.flag & 2)
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wevent(w, &e);
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wclean(w); /* Set clean bit. */
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if (wintype == Dictwin) {
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strcpy(buf, e.b);
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args[0] = lprog;
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args[1] = "-d";
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args[2] = buf;
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args[3] = nil;
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procpexec(lprog, args); /* New adict with chosen dict. */
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}
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if (wintype == Entrywin) {
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strcpy(buf, e.b);
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args[0] = lprog;
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args[1] = "-d";
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args[2] = dict;
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args[3] = buf;
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args[4] = nil;
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procpexec(lprog, args); /* New adict with chosen pattern. */
|
|
}
|
|
if (wintype == Matchwin) {
|
|
tmp = atoi(e.b) - 1;
|
|
if ((tmp >= 0) && (tmp < MAXMATCH) && (curaddr[tmp] != nil)) {
|
|
curindex = tmp;
|
|
curone = curaddr[curindex];
|
|
/* Display selected match. */
|
|
if (Eopen) {
|
|
sprint(buf,"%s/%s/%s/%d",prog,dict,format(pattern),curindex+1);
|
|
wname(&Ewin, buf);
|
|
dispentry(&Ewin);
|
|
}
|
|
else
|
|
procopenwin(prog,"Nmatch Prev Next", &Ewin, Entrywin);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|