mirror of
https://github.com/GnoConsortium/gno.git
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112 lines
2.7 KiB
C
112 lines
2.7 KiB
C
/*
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parsing code for 'edit'
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1.2(jb) 10/27/91
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Added support for a '$editor' variable. edit now checks this var so
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users can select different editors without copying files around.
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1.1(jb) 10/9/91
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Removed a lot of yucky code, added error checking to make sure there
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is one and only one filename specified before 'edit' does anything.
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1.0(jb) Ick! Nasty! Unnecessary code everywhere! Ick!
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*/
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#pragma stacksize 1024
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <types.h>
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#include <gsos.h>
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#include <shell.h>
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#include <orca.h>
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#include <stddef.h>
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#include <texttool.h>
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#include <gno/gno.h>
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#include <sys/wait.h>
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char *invoke;
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doError(char *err)
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{
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printf("%s: %s\n",invoke,err);
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exit(2);
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}
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char sfile[65], dfile[65], parms[256], istring[256];
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Get_LInfoPB gl;
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ExpandPathRecGS ep;
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main (int argc,char *argv[])
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{
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int pid,wpid;
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union wait status;
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GSString255Ptr inPath;
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ResultBuf255Ptr outPath;
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int i;
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char *editname, *editinvoke, *nm, *spc;
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invoke = argv[0];
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if (argc < 2) doError("no filename specified");
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else if (argc > 2) doError("only one filename allowed");
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sfile[1] = 0;
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strcat(sfile+1,argv[1]);
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sfile[0] = strlen(sfile+1);
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dfile[0] = parms[0] = istring[0] = 0;
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gl.pflags = 0x8000000l;
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gl.mflags = 0l;
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gl.kflag = 0;
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gl.sfile = sfile;
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gl.dfile = dfile;
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gl.parms = parms;
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gl.istring = istring;
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gl.merr = 8; gl.merrf = 0;
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gl.org = 0l;
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inPath = malloc((size_t) (sfile[0] + 2));
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inPath->length = sfile[0];
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memcpy(inPath->text,sfile+1,(size_t) sfile[0]);
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outPath = malloc(sizeof(ResultBuf255));
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outPath->bufSize = 255;
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ep.pCount = 3;
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ep.inputPath = inPath;
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ep.outputPath = outPath;
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ep.flags = 0;
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ExpandPathGS(&ep);
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if (toolerror()) { printf("edit: error %04X\n",toolerror()); exit(-1); }
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sfile[0] = outPath->bufString.length;
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memcpy(sfile+1,outPath->bufString.text,sfile[0]);
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free(inPath);
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free(outPath);
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/* hmm. These could well be considered bugs in Rose */
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for (i = 1; i <= sfile[0]; i++) {
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if (sfile[i] == ':') sfile[i] = '/';
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}
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SET_LINFO(&gl);
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editname = getenv("editor");
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if (editname == NULL) editinvoke = editname="4/editor";
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else {
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nm = malloc(strlen(editname)+1); strcpy(nm,editname);
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spc = strchr(nm, ' ');
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if (spc == NULL) { editname = editinvoke = nm; }
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else {
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editinvoke = malloc(strlen(nm)+1); strcpy(editinvoke,nm);
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*spc = 0; editname = nm;
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}
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}
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if ((pid = exec(editname,editinvoke)) >= 0) {
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waitlp2:
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wpid = wait(&status);
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if ((wpid != pid) || (status.w_stopval == WSTOPPED)) goto waitlp2;
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}
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else perror("edit: ");
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exit(status.w_retcode);
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}
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