/* outer_brev.c version 1.0 came from outer.c version 2.5, JGOFS 1.5 release (as of 10 Jan 98). Incompatibilities 1) outer_brev variable names may not include spaces or percent signs. 2) Non-numeric data values (including "nd") cannot be selected with numeric operators 3) When clicking on a datum to use it as a selection for the next level, comparisons are done as strings instead of numbers 4) Rely on program exit to free dynamically allocated memory */ #define OUTER_VERSION "outer_brev version 1.5 12 Nov 1999" /* 12 Nov 99 v 1.5 WJS Bug fix: left trailing comma on level 0 button string 11 Nov 99 v 1.5 WJS Do level 0 button link properly. Problem is query string. We don't want selections/projections in level 0 button link, but we need inner's portion of the query string (eg; if math is the method, the first arg of the query string is the object math is working on. If we don't include that, link is wrong) Remove OO_OUTER switch since it is no longer useful. 13 Sep 99 v 1.5 WJS Add query string when setting up link to info server [Needs outer.h 1.2] [Needs error_exit_defn.h] [Needs outer_utils.c 1.0] [Needs path_info_routines 1.2 or later (.c & .h)] [Begin 1.5] 8 Sep 99 v 1.4a WJS Add max level to alt tag of "next level" button Reverse /pre and /head commands in error_ per empirical evidence w/lynx & a Sun browser Don't prefix &x to messages that already start with it. Bug fix: attempted to print null string while diagnosing projection parse error [Never officially released. Used in test OO server defgb] 20 Apr 99 v 1.4 WJS Have error_ exit with 250 instead of 0 (!) [In general use on Bob's box; not on Chris'] [Needs outer.h 1.1] [Needs error_exit_defn.h] 13 Mar 99 v 1.4 WJS Flush output buffer at &r in case reading program doesn't want data Try to get outer.h version string into image [Needs outer_utils.c 1.0] [Needs path_info_routines 1.2 or later (.c & .h)] [Begin 1.4] 16 Dec 98 v 1.3a WJS Bug fix: logical vars need to be signed. Try to learn from v 1.2a!! Bug fix: compile-time OTHEROPTS was not being used as default for runtime PLOTLINK and vice versa. [General production release early 1999] [Released for beta test on synthesis 16 Dec 98] [Needs outer.h 1.0a] [Needs outer_utils.c 1.0] [Needs path_info_routines 1.2 or later (.c & .h)] [Begin 1.3a] 10 Dec 98 v 1.3 WJS Next-level links use string equality to determine what data at next level is displayed (unless GENERATE_ALPHA_SELECTIONS is turned off). Mods to "top" links 1) Add per-link display control 2) If at level 0, display "nolevel0" gif instead of "Level 0" link. 3) If at last level, display "nolevelN" gif instead of "Level N" link. 4) Use "Level N" for alternate text for next level button. 5) If TEST_GIFS defined, test for button gif existence before generating link to gif. If gif does not exist, display its "alt" text instead Mods to selection/projection code 1) String operations eq,ne,lt,le,gt,ge,contains,is_contained_in, begins_with,ends_with. (These ops typically delimited w/blanks - see trigram mod, below, for way to get blanks into query strings) 2) Parametrize stack size and increase. Still do not test for overflow 3) Do some restructuring & commenting. Remove need for a couple of compile-time constants Accept %hh trigram in selection strings and convert it to the (hopefully) ASCII character corresponding to the hex value of hh. To get a real percent sign in the query string, use %25. A leading 0 must be present, if appropriate; eg, use %09 for tab, not %9. Use iovaldouble_ function instead of iovalreal_ if USE_DOUBLE is defined as TRUE Dynamically allocate more buffers. Can remove PATHSIZE from .h file Calculate some buffer sizes. Can remove OUTVARBUFSIZE & OUTBUFSIZE from .h file More flexibility in BUTTONIMAGESDIR spec. Accept it with or without trailing /. If no protocol (ie, :// string), prepend file://localhost (with another / if necessary) Bug fix: was adding port even when MYADDR had port in it. Bug fix: remove blank btwn "Documentation" & "Plotting and Other Op" Bug fix: v 1.1 handling of query string w/blanks NG since htmlescape doesn't "do" blanks. Improper use of htmlescape anyway - it's designed to allow printing of text w/html special chars such that html formatting doesn't happen. Put htmlescape & some new routines in outer_utils.c Put lots of #defines, etc, in outer.h [Released for beta test on synthesis] [Needs outer.h 1.0] [Needs outer_utils.c 1.0] [Needs path_info_routines 1.2 or later (.c & .h)] [Begin 1.3] [Comments pre-v1.3 removed to outer_brev_revision.doc. WJS 11 Nov 99 */ /* =========================================== Subroutines required: =========================================== */ int ioopen_(); /* int ioopen_(s,nparams,ntotal) char s[][]; int *nparams,*ntotal; s[0..nparams-1]: parameter strings. Inner sets s[j][0]=0 for any strings which it processes; others will be processed by outer. Thus selection/projections would normally be ignored by inner. nparams: number of parameter strings ntotal (returned): total number of variable names */ int ioreadrec_(); /* int ioreadrec_(level) int *level; Read record at appropriate level. Return 0 if end at that level. Return 1 if ok. */ void ioclose_(); /* ioclose_() Close files Note: this routine should NOT call error_ */ void iovalreal_(); /* iovalreal_(vn,f) int *vn; float *f; Return real value (f) for variable indexed by vn. -9999 for strings */ void iovalstr_(); /* iovalstr_(vn,tmp) int *vn; char *tmp; Return string value (tmp) for variable indexed by vn. */ int iovarlevel_(); /* int iovarlevel_(vn) int *vn; Return level corresponding to variable indexed by vn. */ int ioattrout_(); /* ioattrout_(vn, str) int *vn; char *str; Output next attribute for variable indexed by vn. 0=none left. */ void ioname_(); /* ioname_(vn,s) int *vn; char *s; Return name (s) corresponding to variable number vn. */ int iowidth_(); /* int iowidth_(vn); int *vn; Return length of variable field indexed by vn. */ int iocommout_(); /* int iocommout_(s) char *s; Return next comment string. 0=none left. -1=next comment contains a URL */ /* All #includes in outer.h */ #include "outer.h" char outerh_version[]=OUTERH_VERSION; /* Get version into image */ typedef signed char Logical; /* NB: occasionally gets -1, */ /* hence need signed */ /* jgofs.a functions... */ /* HTDoConnect in turn requires some functions, presently found */ /* jgofs.a. Some are HT*.c modules; a couple are in jdb.c */ /* These functions needed only for testing for gifs, which is turned */ /* off by default. However, can't eliminate these defns based on */ /* compile-time TEST_GIFS, since user can spec tests at run time */ /* (only useful time, if functionality useful at all). */ /* If requiring these functions causes trouble (eg, no jgofs.a), */ /* should unconditionally set test_gifs to false. Suggest testing */ /* it first, and aborting if true (on grounds that somebody appears */ /* to want gifs tested, and we're not about to do it) */ int HTDoConnect(); int HTDoRead(); /* outer_utils.c functions... */ char *htmlescape(); char *trigram(); char *un_trigram(); #if USE_DOUBLE #define ioval iovaldouble_ typedef double Comp_precision; #else #define ioval iovalreal_ typedef float Comp_precision; #endif void ioval(); int ntotal; int minlevel; int maxlevel; int reqlevel; int maxobjectlevel; int cl; int brevflag=0; int htmlflag=0; int flatflag=0; int *level=NULL; int brevstart; int brevcount; int brevend; /* PATH_INFO stuff. Functions are in path_info_routines */ char *flat_PATH_INFO,*nextlevel_PATH_INFO,*level0_PATH_INFO; char *no_extURL_PATH_INFO,*full_list_PATH_INFO; char *propagate_brev_no_extURL_PATH_INFO; char *make_PATH_INFO_putenv_string(),*get_jgofs_env_datum(); int get_level(); static char *outnames=NULL; char *parsav; char *QUERY_STRING_no_selections; char *objsav; Logical dirlink,doclink,plotlink,lev0link,levnlink,flatlink; Logical quotenolink,toplinks,otheropts,oo_outer; Logical test_gifs; char *buttonimagesdir; Logical trailing_buttonimagesdir_slash; /* Format of "server" is node (optionally w/port), followed by cgi */ /* program name. Program name by itself can be used if we know */ /* that node is local. A node spec does not include a leading // */ /* (but we'll strip them off found) */ char *dirserver_w_dir; char *optionserver; char *infoserver_w_obj,*infoserver_extURL; char *dataserver,*localnodeport; char *equality_test; /* Links generate string or numeric test? */ /************************************************************************/ void error_(s1,s2) char *s1,*s2; { char *prefix; if(htmlflag){ printf("

%s: %s

\n",s1,s2); } else if(flatflag) { printf("%s %s\n",s1,s2); } else { /* Prefix message w/ &x if it doesn't already start with that */ /* Not sure about blank following &x; it was in code before I */ /* started fooling, so be conservative */ prefix = (strncmp(s1,"&x ",3) == 0) ? "" : "&x "; printf("%s%s: %s\n",prefix,s1,s2); } /* More dynamically allocated memory could be explicitly freed */ /* here, and probably should be so freed, but I'm lazy */ if (level) free(level); if (outnames) free(outnames); ioclose_(); exit(ERROR_EXIT_STATUS); } void out_err(s,t) char *s,*t; { char *ptr1,*ptr2; time_t timbuf; ptr1 = (char *) malloc (strlen(s) + 2 + strlen(t) + 1); if (ptr1 == NULL) error_(s,t); ptr2 = (char *) malloc (20 + 26 + 17 + strlen(OUTER_VERSION) + 1 + 1); if (ptr2 == NULL) error_(s,t); strcpy (ptr1,s); strcat (ptr1,": "); strcat (ptr1,t); strcpy (ptr2,"\n This msg issued "); time(&timbuf); strcat (ptr2,ctime(&timbuf)); /* ctime includes \n */ strcat (ptr2," This msg from "); strcat (ptr2,OUTER_VERSION); strcat (ptr2,"\n"); error_(ptr1,ptr2); return; } void out_errn(s,n,fmt) char *s,*fmt; int n; { char intbuf[25]; sprintf(intbuf,fmt,n); out_err(s,intbuf); return; } void malloc_err(s,n) char *s; int n; { /* Don't want to malloc an error buffer if we're having trouble */ /* malloc'ing in the first place */ /* Tried putting malloc in here, too, returning ptr when OK, but */ /* ran into BUSERR alignment problems. Don't know why... */ #define MAX_S 50 char idbuf[25 + MAX_S + 15 + 1] = "Could not get memory for "; int len; if ( (len = strlen(s)) > MAX_S ) len = MAX_S; strncat(idbuf,s,len); strcat(idbuf,". nbytes (hex) "); out_errn(idbuf,n,"%x"); return; } /* P-code form: 128..255 exec test(n-128) [negative #'s on Sun] [negativity not used in this code-fortunately. WJS] 1=or,2=and,3=not 0: end */ #define NTESTS 100 /* Number of selections/projections */ #define OPSTACKSIZE 20 /* Depth of operation stack; eg (a+b)*(c+d) */ /* needs a depth of 3 */ /* Within each of next 4 arrays, "equivalent" strings (eg, != & <>) */ /* are grouped together. "Group size" is constant (eg, see empty */ /* strings in testop where there are no equivalent strings). Groups */ /* are ordered to drive "switch" statements in code, so order alter- */ /* ation means code alteration. Infix array is ordered by operation */ /* priority as well. testop is parallel to teststrop as far as it */ /* goes. testop defines numeric comparisons; teststrop string */ /* comparisons. */ /* Each array ends with NULL */ /* Recoded not to use prefix array, since "not" prefix (and any */ /* future one like it) must be tested for in variable section, */ /* while ! is tested for in "normal" special character section */ static char *prefix[]={"!","not",NULL}; static char *infix[]={"||","or","|","&&","and","&",NULL}; static char *testop[]={"<","","=","==",">","","<=","","<>","!=",">=","",NULL}; static char *teststrop[]={"lt","eq","gt","le","ne","ge","contains", "is_contained_in","begins_with","ends_with",NULL}; #define SIZE_PREFIX_GROUP 2 #define SIZE_INFIX_GROUP 3 #define SIZE_TESTOP_GROUP 2 static struct { int testlev; int testvar; int testcode; Comp_precision testval; char *teststr; int lenteststr; int testres; } tst[NTESTS]; static int tstcnt=0; static int tstproc[NTESTS]; static int tstproccnt=0; void parse(s) char *s; /* Description is approximate. Seems to me it can do */ /* weird things with not... */ /* Parser has 4 states: variable or open paren */ /* comparison operator */ /* thing being compared */ /* logical operator or close paren or end */ /* Idea is to get next token, determine its type, the process it */ /* depending on the state the parser is in (possibly changing state) */ { int opstkp; Comp_precision f; int opstack[OPSTACKSIZE]; int opprior[OPSTACKSIZE]; char *t,*t1,tok[TOKEN+1],tmp[TOKEN+1]; int i,state,typ,finaland,type_string_op,paren_depth; paren_depth = 0; opstkp = 0; opstack[0] = 0; opprior[0] = -1; state = 0; finaland = (tstproccnt != 0); strcat(s,"$"); t = s; while (t != NULL) { /* Scheme: If first char not one of the special ones, save the */ /* token. Resulting alpha token can be "not" operator or one of */ /* the string operators. */ /* In original outer code, a token beginning with something like @ */ /* would show up as "bad prefix operator". In this code, I think */ /* it will show up as "error on conditions" */ /* The original outer code for this section is commented at the */ /* end of this file */ /* Skip leading blanks. Whole string cannot be blank because of */ /* appended $, above */ t += strspn(t," "); switch (*t) { case '(': paren_depth++; typ = 2; t++; break; case ')': if ((--paren_depth) < 0) out_err("Illegally nested parens",s); typ = 3; t++; break; case '$': typ = 4; t = NULL; break; case '=': case '<': case '>': case '|': case '&': case '!': tok[0] = *t; /* Check for 2nd char of 2-char ops like !=. Validity */ /* of particular 2-char combo checked later */ switch (*(t+1)) { case '&': case '|': case '=': case '>': tok[1] = *(++t); tok[2] = '\0'; break; case '$': out_err("No argument after last logical operator",s); break; default: tok[1] = '\0'; break; } typ = 5; t++; break; default: /* alpha token. Could still be string operator... */ if ( (i = strcspn(t," ()$=<>|&!")) > TOKEN ) out_err("Token too long",tok); strncpy(tok,t,i); tok[i] = '\0'; t += i; type_string_op = -1; while (teststrop[++type_string_op] != NULL) if (strcmp(teststrop[type_string_op],tok) == 0) break; if (teststrop[type_string_op] == NULL) { /* Token is not string operator. See if it's numeric */ f=strtod(tok,&t1); typ = (*t1 == '\0') ? 1 : 0; } else { type_string_op++; /* Begins-w-0 vs begins-w-1 mod */ typ = 6; } break; } switch (state*10+typ) { case 0: /* variable or the string "not" */ case 6: /* string operator could be a variable name, too */ for (i=0; i 0) /* Requested test is numeric */ tst[tstcnt].testcode = - tst[tstcnt].testcode; /* Convert it */ /* Deliberate fall-through here */ case 21: /* token being compared to IS numeric */ if (tst[tstcnt].testcode < 0) { /* Requested test is string */ tst[tstcnt].lenteststr = strlen(tok); i = tst[tstcnt].lenteststr + 1; if ( (tst[tstcnt].teststr = (char *) malloc(i)) == NULL ) malloc_err("teststr",i); strcpy(tst[tstcnt].teststr,tok); f = 0.; /* Convenient for trick used later in test */ } tst[tstcnt++].testval=f; state=3; break; case 30: case 35: /* and or */ i = -1; while (infix[++i] != NULL) if (strcmp(tok,infix[i]) ==0 ) break; if (infix[i] == NULL) out_err("Bad infix operator",tok); i = (i/SIZE_INFIX_GROUP)+1; while (i+1 <= opprior[opstkp]) tstproc[tstproccnt++] = opstack[opstkp--]; opstack[++opstkp] = i; opprior[opstkp] = i+1; state=0; break; case 33: /* ) */ while (1 < opprior[opstkp]) tstproc[tstproccnt++] = opstack[opstkp--]; if ((--opstkp) < 0) out_err("Op stack underflow",""); break; case 34: /* $ */ while (0 <= opprior[opstkp]) tstproc[tstproccnt++] = opstack[opstkp--]; if (finaland) tstproc[tstproccnt++] = 2; #ifdef DEBUG printf("finaland = %d, tstproccnt = %d\n",finaland,tstproccnt); for(i=0;i=128) printf("%d %d %f %s\n",tst[tstproc[i]-128].testvar, tst[tstproc[i]-128].testcode,tst[tstproc[i]-128].testval, tst[tstproc[i]-128].teststr); else printf("\n"); }; #endif return; default: out_err("Parsing error",s); } } if (paren_depth != 0) out_err("Unpaired parentheses",s); } int test(cl) int cl; { Comp_precision f; char tmp[DATUMBUFSIZE]; int i,j,m; /* Size below comes from conclusion that in tstproccnt loop below, */ /* the stack pointer could be incremented once each interaction, */ /* even though logically, I think the pointer is supposed to end up 0 */ int stk[NTESTS],stkp; #ifdef DEBUG printf("entered test at level %d\n",cl); #endif stkp = -1; stk[0] = TRUE; for (i=0; i= 128){ j = tstproc[i]-128; if (tst[j].testlev == cl) { #ifdef DEBUG printf("-- %f %d %f -- ",f,tst[j].testcode,tst[j].testval); #endif if (tst[j].testcode < 0) { iovalstr_(&(tst[j].testvar),tmp); if (tst[j].testcode >= -6) f = (double) strcmp(tmp,tst[j].teststr); } else ioval(&(tst[j].testvar),&f); switch (abs(tst[j].testcode)){ case 1: m = (f < tst[j].testval); break; case 2: m = (f == tst[j].testval); break; case 3: m = (f > tst[j].testval); break; case 4: m = (f <= tst[j].testval); break; case 5: m = (f != tst[j].testval); break; case 6: m = (f >= tst[j].testval); break; case 7: /* contains */ m = (strstr(tmp,tst[j].teststr) != NULL); break; case 8: /* is_contained_in */ m = (strstr(tst[j].teststr,tmp) != NULL); break; case 9: /* begins_with */ m = (strncmp(tmp,tst[j].teststr,tst[j].lenteststr) == 0); break; case 10: /* ends_with */ m = strlen(tmp) - tst[j].lenteststr; m = (m >= 0) ? (strcmp(tmp+m,tst[j].teststr) == 0) : FALSE; break; default: out_errn("Internal error-illegal testcode",tst[j].testcode,"%d"); } tst[j].testres = m; stk[++stkp] = m; } /* Use previously saved test result-no need to recalc it */ else if (tst[j].testlev < cl) stk[++stkp] = tst[j].testres; /* Test is at level we haven't gotten to yet. Return true even */ /* if data at next level might not pass test. Therefore, all */ /* level N data shows up when displaying level N, but might not */ /* when displaying same object at level N+1. Only a problem */ /* when displaying by level... */ else stk[++stkp] = TRUE; } else { switch (tstproc[i]) { case 1: stk[stkp-1] = (stk[stkp-1] || stk[stkp]); stkp--; break; case 2: stk[stkp-1] = (stk[stkp-1] && stk[stkp]); stkp--; break; case 3: stk[stkp] = ( ! stk[stkp]); break; default: out_errn("Internal error-illegal tstproc",tstproc[i],"%d"); } } } #ifdef DEBUG printf("test result = %d\n",stk[0]); #endif return stk[0]; } void print_comments_html() { char tmp[COMMENTLINEBUF]; char *ptr; int j; char comment_fmt[]="# %s\n"; while( (j=iocommout_(tmp)) != 0 ) if (j>0) { ptr = htmlescape(tmp); printf(comment_fmt,ptr); free(ptr); } else printf(comment_fmt,tmp); return; } void outvar() /* outvar outputs tabs as this is likely being fed into another program or being transferred across a network and therefore, we wish to minimize size of transfer to one character separating fields */ { int i,j; char tmp[OUTVARBUFSIZE],attr[TOTATTRSIZE]; i=1; while(iocommout_(tmp)){ if(i) { printf("&c\n"); i=0; }; printf("%s\n",tmp); }; for(i=0;i<=maxlevel;i++){ printf("&v%d\n",i); for(j=0;j= 0) { strcpy(attr,"["); while(ioattrout_(&j,tmp)) { strcat(attr,tmp); strcat(attr,";"); } if(strcmp(attr,"[")) attr[strlen(attr)-1]=']'; else attr[0]=0; strcpy(tmp,outnames+j*VARNAMEBUFSIZE); if (strstr(attr,"width=") == NULL) strcat(tmp,attr); len=iowidth_(&j); printf("%-*s ",len,tmp); /* output var name in enough space + 2 */ } printf("\n"); } Logical outputflat(firsttime) Logical firsttime; { int j,len; char tmp[OUTBUFSIZE]; while (iocommout_(tmp)) ; for (j=0; j= 0) { iovalstr_(&j,tmp); len=iowidth_(&j); printf("%-*s ",len,tmp); } printf("\n"); minlevel=maxlevel; return 1; } void make_PATH_INFOs() { /* First "\0" to make_PATH_INFO_putenv_string says "don't start string */ /* with PATH_INFO=". First NULL says "Use PATH_INFO as default */ /* for unspec'd fields. For rest, NULL or USE_EXISTING_LEVEL */ /* means "use what's in PATH_INFO; otherwise, replace what's in */ /* PATH_INFO with what was supplied. */ /* May want to review comments about reqlevel vs maxlevel in main. */ /* Due to issues raised there, a user of the "Next level" button */ /* cannot get beyond a level that is "empty" because of */ /* projections */ full_list_PATH_INFO = make_PATH_INFO_putenv_string ("\0",NULL,NULL,"html",USE_EXISTING_LEVEL,NULL); /* Not sure why there's no extended URL in PATH_INFO for flat */ /* Not sure why level should be present either */ flat_PATH_INFO = make_PATH_INFO_putenv_string ("\0",NULL,NULL,"flat",USE_EXISTING_LEVEL,"\0"); nextlevel_PATH_INFO = make_PATH_INFO_putenv_string ("\0",NULL,NULL,NULL,reqlevel+1,NULL); level0_PATH_INFO = make_PATH_INFO_putenv_string ("\0",NULL,NULL,NULL,0,NULL); /* If/when we want to propagate .brev, change "html" to NULL below */ /* and get rid of propagate_brev in favor of no_extURL */ no_extURL_PATH_INFO = make_PATH_INFO_putenv_string ("\0",NULL,NULL,"html",USE_EXISTING_LEVEL,"\0"); propagate_brev_no_extURL_PATH_INFO = make_PATH_INFO_putenv_string ("\0",NULL,NULL,NULL,USE_EXISTING_LEVEL,"\0"); /* Make string for "Documentation" button. Although not a PATH_ */ /* INFO, I assume the {} section is logically an extended URL. */ /* Therefore, in the name of separating the formatting from the */ /* content, we build it here. The malloc & sprintf, below, */ /* should be replaced when we write a "create_extURL" routine */ /* since the = and , in "dir=whatever," are also extURL format- */ /* ting and not content. */ infoserver_extURL = NULL; if (*infoserver_w_obj == '\0') infoserver_extURL = infoserver_w_obj; else { infoserver_extURL = (char *)malloc (strlen(dirserver_w_dir) + strlen(dataserver) + strlen(no_extURL_PATH_INFO) + strlen(parsav) + strlen("{dir=,data=}?") + 1); if (infoserver_extURL != NULL) /* Assumes we prefer "dir=" to nothing if dirserver_w_dir empty */ sprintf(infoserver_extURL,"{dir=%s,data=%s%s}?%s", dirserver_w_dir, dataserver,propagate_brev_no_extURL_PATH_INFO,parsav); } if (full_list_PATH_INFO == NULL) out_err("Cannot make full_list_PATH_INFO",""); if (flat_PATH_INFO == NULL) out_err("Cannot make flat_PATH_INFO",""); if (nextlevel_PATH_INFO == NULL) out_err("Cannot make nextlevel_PATH_INFO",""); if (level0_PATH_INFO == NULL) out_err("Cannot make level0_PATH_INFO",""); if (no_extURL_PATH_INFO == NULL) out_err("Cannot make no_extURL_PATH_INFO",""); if (infoserver_extURL == NULL) out_err("Cannot make infoserver_extURL",""); return; } Logical check_gifs(gifs) char *gifs[]; /* If gif does not exist, replace its pointer with NULL */ /* Return TRUE if any gifs exist */ /* By default, this routine only looks at BUTTONIMAGESDIR. If empty */ /* no gifs exist; else all gifs exist. If TEST_GIFS specified, */ /* this routine will go out on net and look for each gif individ- */ /* ually. */ /* Put all tests in one module to try to do all testing w/one */ /* connect. Don't know how to do this, however. May not be poss- */ /* ible w/HTTP 1.0 routines (I assume HT routines in jdb.a are 1.0 */ { char *buttonhoststart,*buttonfilestart; int lenbuttonimagesdir; int handle,len,lenimg,lenbuttonfile,len_Host_buf; int i; Logical null_all_gifs,got_dir,got_a_gif; char *ptr,*HEAD_buf,*Host_buf,*htdatabuf; /* Buffer needs to be big enough to hold response to http HEAD */ /* request. 4096 chosen since that's what was in transfer, but */ /* I suspect that's for data, not just response to HEAD... */ #define HTDATARECSIZE 4096 got_dir = (*buttonimagesdir != '\0'); /* Assume we're not testing for gifs. In that case, turn off gifs */ /* if we weren't given a BUTTONIMAGESDIR */ null_all_gifs = ! got_dir; if ( got_dir && test_gifs ) { null_all_gifs = TRUE; /* .. in case we can't malloc various buffers */ lenbuttonimagesdir = strlen(buttonimagesdir); /* Set buttonhoststart to point after the protocol:// string */ /* Set buttonfilestart to point to the / that begins the file */ buttonhoststart = strstr(buttonimagesdir,"://") + 3; if ( (buttonfilestart = strchr(buttonhoststart,'/')) == NULL ) buttonfilestart = buttonimagesdir + lenbuttonimagesdir; trailing_buttonimagesdir_slash = (*(buttonimagesdir + lenbuttonimagesdir - 1) == '/'); /* 2nd/3rd line buffer is "Host: ", host:port, "\r\n\r\n" */ len_Host_buf = 6 + buttonfilestart - buttonhoststart + 4; Host_buf = (char *) malloc (len_Host_buf + 1); if (Host_buf != NULL) { strcpy (Host_buf,"Host: "); strncat (Host_buf, buttonhoststart, buttonfilestart - buttonhoststart); strcat (Host_buf, "\r\n\r\n"); lenimg = 0; for (i=0; i lenimg) lenimg = len; } /* 1st line buffer is "HEAD ",filename," HTTP 1.0\r\n" */ /* buttonimagesdir + lenbuttonimagesdir - buttonfilestart */ /* is the length of any directory portion for gif that was */ /* given in buttonimagesdir. */ lenbuttonfile = buttonimagesdir + lenbuttonimagesdir - buttonfilestart + lenimg + 2; /* +2 = we might need added /s */ HEAD_buf = (char *) malloc (5 + lenbuttonfile + 11 + 1); if (HEAD_buf != NULL) { if ( (htdatabuf = (char *)malloc(HTDATARECSIZE +1)) != NULL ) { /* From here, will be able to handle each gif individual- */ /* ly, so don't handle them collectively */ null_all_gifs = FALSE; for (i=0; i 0) { /* Assume status is 2nd token on returned line */ /* Also assume 2nd token fits within HTDATARECSIZE */ /* Also assume token seps are blank, tab. */ /* Also assume 200 is only good return. Aren't */ /* assumptions fun? */ ptr = strtok(htdatabuf,"\t "); if (ptr != NULL) ptr = strtok(NULL,"\t "); if (ptr == NULL) gifs[i] = NULL; /* Format bogus */ else if (strcmp("200",ptr) != 0) gifs[i] = NULL; /* Not OK (or format bogus) */ } else { gifs[i] = NULL; /* Read failed */ } /* Skip rest of reply to HEAD request */ close (handle); } else { gifs[i] = NULL; /* Connect failed */ } } free (htdatabuf); } free (HEAD_buf); } free (Host_buf); } } got_a_gif = FALSE; if (null_all_gifs) for (i=0; i",text); else { ptr = img; slash = ""; if (trailing_buttonimagesdir_slash) { if (*ptr == '/') ptr++; } else { if (*ptr != '/') slash = "/"; } printf ("\"%15s\"", text,buttonimagesdir,slash,ptr); } return; } void print_vert_bar(gif,set_new_line) Logical set_new_line; char *gif; /* Vertical bars are supposed to separate text links from all others */ /* Print one if: */ /* 1) This is not the first link on a line */ /* 2) The link we are about to output is text */ /* 3) The link we are about to output is image, but the link we */ /* output before was text */ /* This routine maintains state across calls... */ /* The set_new_line argument is used to set the "first link on a */ /* line" characteristic. No vertical bar is output in this case */ { static Logical first_link; static Logical printed_text_link; if (set_new_line) { first_link = TRUE; return; } if (first_link) first_link=FALSE; else if ( (gif == NULL) || printed_text_link) printf (" | "); printed_text_link = (gif == NULL); return; } void outvarhtml() /* routine to print the heading of all data objects if in HTML mode The directory button should always direct the browser back to the directory from which it came. Send link back to referring host for documentation - the .remoteobjects at that site has responsibility of correctly id'ing the INFOSERVER, using hyperlinks from a static obj.info file or Redirect to another host with HTTPD function (NCSA HTTPD 1.5.1 or gt) */ { char tmp[ATTRBUFSIZE]; Logical any_buttons_on_line_1,any_buttons_on_line_2; int j; char *ptr,*ptr1; char next_level[19]; /* Big enough for "Level 999 (of 999)\0" */ char *gifs[NGIFS]; gifs[DIR_GIF] = "dir.gif"; gifs[DOC_GIF] = "doc.gif"; gifs[PLOT_GIF] = "more.gif"; gifs[LEVEL0_GIF] = "level0.gif"; gifs[NOLEVEL0_GIF] = "nolevel0.gif"; gifs[LEVELN_GIF] = "leveln.gif"; gifs[NOLEVELN_GIF] = "noleveln.gif"; gifs[FLAT_GIF] = "flat.gif"; make_PATH_INFOs(); check_gifs(gifs); printf("%s -- Level %d\n",objsav,maxlevel); /* Make header look good by removing trigrams. Note that this */ /* is inconsistent; this version of outer_brev only expects */ /* trigrams in selections & parsav could have significant % signs */ /* If that gets to be a problem, we'll have to reparse or make an */ /* appropriate string while parsing... */ if ( (ptr = un_trigram(parsav,TRIGRAM_KEY,&j)) == NULL ) if (j<0) out_err("Could not malloc ptr to hold",parsav); else out_err("Bad trigram",parsav+j); printf("

%s --%s-- Level %d

\n",objsav,ptr,maxlevel); free(ptr); /* No dirlink if we have no directory server */ dirlink = dirlink && (*dirserver_w_dir != '\0'); /* No doclink if we have no infoserver */ doclink = doclink && (*infoserver_extURL != '\0'); /* Put out toplinks. */ /* If there are no buttons corresponding to the links, all */ /* spec'd links go on 1 line. Separate these text links with */ /* vertical bars. */ /* If there ARE buttons, they go on their "correct */ /* lines; that is, if any of doclink, dirlink, or plotlink */ /* are spec'd, they go on line 1; if any of lev0link, lev1link, */ /* or flatlink are spec'd, they go on line 2 (if there was a */ /* line 1). */ /* A mixture of text links and button links are allowed. As */ /* for formatting, I tried... */ /* */ /* Logic: */ /* 1) Put out vertical bar, if needed */ /* 2) Open the anchor with "" */ /* 4) Call tag_toplink to associate text and, optionally, gif */ /* with anchor. tag_toplink issues the close anchor */ /* "<\a"> string, too */ /* 5) Do some bookkeeping about what kind of link we just did */ print_vert_bar (NULL,TRUE); any_buttons_on_line_1 = FALSE; if (dirlink) { print_vert_bar (gifs[DIR_GIF],FALSE); printf("", dirserver_w_dir); tag_toplink("Directory", gifs[DIR_GIF]); if (gifs[DIR_GIF] != NULL) any_buttons_on_line_1 = TRUE; } if (doclink) { print_vert_bar (gifs[DOC_GIF],FALSE); /* infoserver wants an object name (no protocol or level), */ /* and enough info to generate pointers to "our" dir and data */ printf("", infoserver_w_obj, infoserver_extURL); tag_toplink("Documentation", gifs[DOC_GIF]); if (gifs[DOC_GIF] != NULL) any_buttons_on_line_1 = TRUE; } if (plotlink) { print_vert_bar (gifs[PLOT_GIF],FALSE); /* optionserver wants a JGOFS object and its selections/proj- */ /* ections. I suspect it does not want protocol or level info, */ /* but historically those have been provided. It doesn't know */ /* how to handle extended URL's, so don't pass that either, but */ /* I suspect that will change, too. A "JGOFS object" is speci- */ /* fied by its node/port and its name (in PATH_INFO, along w/ */ /* protocol and level). optionserver requires the node/port to */ /* start with // (again for historical reasons, but we need some */ /* kind of separator anyway!) */ printf("", optionserver, localnodeport, no_extURL_PATH_INFO, parsav); tag_toplink("Plotting and Other Operations...", gifs[PLOT_GIF]); if (gifs[PLOT_GIF] != NULL) any_buttons_on_line_1 = TRUE; } /* If we are displaying buttons, and if we've displayed any so */ /* far, and if we have any left to display, "go to next line" */ /* I wonder if this should happen in a NOTOPLINKS environment... */ /* (See
comment, below) */ /* In order to find out about next line's buttons, we have to */ /* repeat a whole bunch of logic. Makes changing line structure, */ /* etc, a drag... */ if (any_buttons_on_line_1) { any_buttons_on_line_2 = (flatlink && (gifs[FLAT_GIF] != NULL)); if ( ! any_buttons_on_line_2 ) if (lev0link) if (maxlevel == 0) any_buttons_on_line_2 = (gifs[NOLEVEL0_GIF] != NULL); else any_buttons_on_line_2 = (gifs[LEVEL0_GIF] != NULL); if ( ! any_buttons_on_line_2 ) if (levnlink) if (maxlevel == maxobjectlevel) any_buttons_on_line_2 = (gifs[NOLEVELN_GIF] != NULL); else any_buttons_on_line_2 = (gifs[LEVELN_GIF] != NULL); if (any_buttons_on_line_2) { printf("

"); print_vert_bar (NULL,TRUE); } } if (lev0link) { if (maxlevel == 0) { ptr = " - At level 0 - "; ptr1 = gifs[NOLEVEL0_GIF]; print_vert_bar (ptr1,FALSE); printf(""); } else { ptr = "Level 0"; ptr1 = gifs[LEVEL0_GIF]; print_vert_bar (ptr1,FALSE); /* Level 0 button gets query string w/o selections/projections */ /* I still don't know why it doesn't keep any "original" se- */ /* lections/projections, but we certainly don't want any */ /* "clicked-on" selections. See comments up top for dis- */ /* cussion of preservation of inner's args */ /* QUERY_STRING_no_selections may be \0; has its own ? */ /* if needed */ printf ("", JGOFS_DATA_CGI_SPEC, level0_PATH_INFO, QUERY_STRING_no_selections); free(QUERY_STRING_no_selections); } tag_toplink(ptr, ptr1); } if (levnlink) { if (maxlevel < maxobjectlevel) { ptr = next_level; ptr1 = gifs[LEVELN_GIF]; print_vert_bar (ptr1,FALSE); printf ("", JGOFS_DATA_CGI_SPEC, nextlevel_PATH_INFO, parsav); sprintf(next_level,"Level %d (of %d)",maxlevel+1,maxobjectlevel); } else { ptr = " - At last level - "; ptr1 = gifs[NOLEVELN_GIF]; print_vert_bar (ptr1,FALSE); printf(""); } tag_toplink(ptr, ptr1); } if (flatlink) { print_vert_bar (gifs[FLAT_GIF],FALSE); printf ("", JGOFS_DATA_CGI_SPEC, flat_PATH_INFO, parsav); tag_toplink("Flat list", gifs[FLAT_GIF]); } /* If we are displaying buttons, "
" (whatever that is) */ /* I wonder if this should also happen in a NOTOPLINKS environment */ /* (See

comment, above) */ if (any_buttons_on_line_1 || any_buttons_on_line_2) printf("
"); printf("\n"); printf("

\n");

  print_comments_html();

    /* look at attributes to create array of widths - see ioattrout_ */
  for(j=0; j= 0)
      while(ioattrout_(&j,tmp))
        ;

  return;
}

void print_html_data_line(print_data_as_links,level_to_print)
Logical print_data_as_links;
int level_to_print;
/*  print_html_data_line scans the list of all variables, selecting	*/
/*  those at level level_to_print.  It prints the data corresponding	*/
/*  to each selected variable as either a text string, or a link to	*/
/*  the next level with the text string as a label.  The choice of	*/
/*  of which way to print is governed by print_data_as_links arg and	*/
/*  the quotenolink global variable.  The rules:			*/
/*    1) At most one level is displayed as links.			*/
/*    2) The candidate level is the last level being displayed		*/
/*    3) If that level is the last of the object, do not display as	*/
/*	as links							*/
/*    4) if quotenolink: regardless of level, if datum is enclosed	*/
/*	in "s, remove them and print the rest as text			*/
/*  Rule 4 is implemented here.  Rules 1, 2, & 3 are "put into"		*/
/*  print_data_as_links by outputhtml					*/
{
  int j,len_datum,field_width;
  char tmp[DATUMBUFSIZE];
  char *comma,*ptr;

  comma = (*parsav == '\0') ? "\0" : ",";

  for(j=0;j%-s%*s",
          JGOFS_DATA_CGI_SPEC, nextlevel_PATH_INFO, 
	  parsav, comma, outnames+j*VARNAMEBUFSIZE, equality_test, ptr,
          tmp,
	  field_width-len_datum+2, " "
	);
	free (ptr);
      }
      else printf("%-*s  ",field_width,tmp);
    }

  printf("\n");

  return;
}

void print_full_list_link (s)
char *s;
{
#define BREVLINKINDENT 16

  printf ("%*s%s\n",BREVLINKINDENT," ",s);
  printf ("%*sFull data listing\n",
    BREVLINKINDENT, " ", JGOFS_DATA_CGI_SPEC, full_list_PATH_INFO, parsav);

  return;
}

Logical outputhtml(firsttime)
Logical firsttime;
{
    /* linecount for abbreviated listing feature			*/
  static int linecount;

  int i,j;

    /* minlevel != maxlevel for first record of each maxlevel file	*/
    /* in a multilevel display						*/
  if (minlevel','<','=',' ',TRIGRAM_KEY,'\0'};

  reqlevel=LEVEL_NOT_SPECIFIED;		/* from path_info_routines.h	*/
  get_outer_params();
  if (reqlevel == LEVEL_NOT_SPECIFIED) reqlevel = 999;	/* 999 from orig code */
    /*  Make copy of query string.  Eventually remove selections &	*/
    /*  projections from it.  One malloc "+1" is for leading '?'; other	*/
    /*  is for trailing '\0'						*/
  i = strlen(parsav);
  if (  (QUERY_STRING_no_selections = (char *)malloc(i+1+1)) == NULL  )
					malloc_err("copy of query string",i);
  *QUERY_STRING_no_selections = QUERY_STRING_CHAR;
  strcpy (QUERY_STRING_no_selections + 1, parsav);

  nparams=argc-1;
  maxobjectlevel=ioopen_(argv+1,&nparams,&ntotal);

  i = ntotal*sizeof(int);
  if (  (level = (int *) malloc(i)) == NULL  )  malloc_err("level array",i);
  for (i=0;i= -reqlevel-1)  )
	  *(level+k)= - *(level+k)-1;
	any_projections = TRUE;
      }
    }
    /*  If nothing in QUERY_STRING_no_selections, remove leading '?'	*/
    /*  Also remove trailing comma, if any				*/
  if ( *(QUERY_STRING_no_selections + 1) == '\0')
			  		*QUERY_STRING_no_selections = '\0';
  else {
    i = strlen(QUERY_STRING_no_selections) - 1;
    if ( *(QUERY_STRING_no_selections + i) == QUERY_STRING_ITEM_SEPARATOR )
      *(QUERY_STRING_no_selections + i) = '\0';
  }

  if ( ! any_projections )
    for (i=0; i= -reqlevel-1) *(level+i)= - *(level+i)-1;

  maxlevel=0;
  for (j=0; j maxlevel )  maxlevel= *(level+j);

  /*  The following 3 lines appear in the jgofs 1.5 outer, commented	*/
  /*  out there as they are here.					*/
/*
  for (j=0;j= 128)
      if (tst[j].testlev > maxlevel) maxlevel=tst[j].testlev;
*/

  if (reqlevel>maxlevel) reqlevel=maxlevel;
/*  There may be some ambiguity between reqlevel, maxlevel, and the	*/
/*	level in PATH_INFO.  maxlevel is the "deepest" level we will	*/
/*	display.  reqlevel starts out as what was in PATH_INFO.  It	*/
/*	is used to set an upper bound on maxlevel (the "bottom" level	*/
/*	of the object is also an upper bound indirectly via the calls	*/
/*	to iovarlevel_).  maxlevel can further be reduced by proj-	*/
/*	ections.  Finally, maxlevel is used as an upper bound on	*/
/*	reqlevel.  Thus, after everything is over, I think reqlevel	*/
/*	ends up equal to maxlevel.  Logically, however, if reqlevel	*/
/*	means "requested level", that's what's in the URL.  Everything	*/
/*	else is logically maxlevel.					*/
/*  reqlevel is used in the "Next level" button.  I think it would work	*/
/*	better if the above "if" were removed, in which case reqlevel	*/
/*	would represent the min of the user requested level & the	*/
/*	number of levels in the object					*/

#ifdef DEBUG
  printf("maxlevel %d\n",maxlevel);
#endif

  minlevel=maxlevel;
  cl=0;
  firsttime=TRUE;
  output_next_line=TRUE;

  if (htmlflag) outvarhtml();
  else if (flatflag) outvarflat();
  else outvar();

  if (  (stmp = (char *)malloc(COMMENTLINEBUF)) == NULL  )
				malloc_err ("comment buffer",COMMENTLINEBUF);

  while(1){
    if (output_next_line && ioreadrec_(&cl))  {
#ifdef DEBUG
      printf("succ. read at lev %d\n",cl);
#endif

      if(test(cl))
	if(cl\n"); 
  else if (!flatflag) printf("&e\n");

  exit(0);
}
/********************			**********************		*/
/*		Replaced token processing code from parse in original outer
  if(isdigit(*t) || *t=='.' || *t=='+' || *t=='-'){
    f=strtod(t,&t1);
    if(strchr(" ()$=<>|&!",*t1)){
      typ=1;
      t=t1;
    } else {
      i=strcspn(t," ()$=<>|&!");
      strncpy(tok,t,i);
      tok[i]='\0';
      t += i;
      typ=0;
    };
  } else if(isalpha(*t) || *t=='#'){
    i=strcspn(t," ()$=<>|&!");
    strncpy(tok,t,i);
    tok[i]='\0';
    t += i;
    typ=0;
  } else if(*t == '('){
    typ=2;
    t++;
  } else if(*t == ')'){
    typ=3;
    t++;
  } else if(*t == '$'){
    typ=4;
    t=NULL;
  } else {
    tok[0]= *t;
    if((int)strspn(t+1,"&|=>")>0){
      tok[1]= *(++t);
      tok[2]='\0';
    } else
      tok[1]='\0';
    t++;
    typ=5;
  };
*/