/* * RLOG operation */ /***************************************************************************** * print contents of RCS files ***************************************************************************** */ /* Copyright (C) 1982, 1988, 1989 Walter Tichy Copyright 1990, 1991 by Paul Eggert Distributed under license by the Free Software Foundation, Inc. This file is part of RCS. RCS is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. RCS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with RCS; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. Report problems and direct all questions to: rcs-bugs@cs.purdue.edu */ /* $Log: rlog.c,v $ * Revision 1.2 1993/08/06 16:47:16 nate * Have rlog output be much easier to parse. (Added one line which is not * used by any CVS/RCS commands) * * Revision 1.1.1.1 1993/06/18 04:22:17 jkh * Updated GNU utilities * * Revision 5.9 1991/09/17 19:07:40 eggert * Getscript() didn't uncache partial lines. * * Revision 5.8 1991/08/19 03:13:55 eggert * Revision separator is `:', not `-'. * Check for missing and duplicate logs. Tune. * Permit log messages that do not end in newline (including empty logs). * * Revision 5.7 1991/04/21 11:58:31 eggert * Add -x, RCSINIT, MS-DOS support. * * Revision 5.6 1991/02/26 17:07:17 eggert * Survive RCS files with missing logs. * strsave -> str_save (DG/UX name clash) * * Revision 5.5 1990/11/01 05:03:55 eggert * Permit arbitrary data in logs and comment leaders. * * Revision 5.4 1990/10/04 06:30:22 eggert * Accumulate exit status across files. * * Revision 5.3 1990/09/11 02:41:16 eggert * Plug memory leak. * * Revision 5.2 1990/09/04 08:02:33 eggert * Count RCS lines better. * * Revision 5.0 1990/08/22 08:13:48 eggert * Remove compile-time limits; use malloc instead. Add setuid support. * Switch to GMT. * Report dates in long form, to warn about dates past 1999/12/31. * Change "added/del" message to make room for the longer dates. * Don't generate trailing white space. Add -V. Ansify and Posixate. * * Revision 4.7 89/05/01 15:13:48 narten * changed copyright header to reflect current distribution rules * * Revision 4.6 88/08/09 19:13:28 eggert * Check for memory exhaustion; don't access freed storage. * Shrink stdio code size; remove lint. * * Revision 4.5 87/12/18 11:46:38 narten * more lint cleanups (Guy Harris) * * Revision 4.4 87/10/18 10:41:12 narten * Updating version numbers * Changes relative to 1.1 actually relative to 4.2 * * Revision 1.3 87/09/24 14:01:10 narten * Sources now pass through lint (if you ignore printf/sprintf/fprintf * warnings) * * Revision 1.2 87/03/27 14:22:45 jenkins * Port to suns * * Revision 4.2 83/12/05 09:18:09 wft * changed rewriteflag to external. * * Revision 4.1 83/05/11 16:16:55 wft * Added -b, updated getnumericrev() accordingly. * Replaced getpwuid() with getcaller(). * * Revision 3.7 83/05/11 14:24:13 wft * Added options -L and -R; * Fixed selection bug with -l on multiple files. * Fixed error on dates of the form -d'>date' (rewrote getdatepair()). * * Revision 3.6 82/12/24 15:57:53 wft * shortened output format. * * Revision 3.5 82/12/08 21:45:26 wft * removed call to checkaccesslist(); used DATEFORM to format all dates; * removed unused variables. * * Revision 3.4 82/12/04 13:26:25 wft * Replaced getdelta() with gettree(); removed updating of field lockedby. * * Revision 3.3 82/12/03 14:08:20 wft * Replaced getlogin with getpwuid(), %02d with %.2d, fancydate with PRINTDATE. * Fixed printing of nil, removed printing of Suffix, * added shortcut if no revisions are printed, disambiguated struct members. * * Revision 3.2 82/10/18 21:09:06 wft * call to curdir replaced with getfullRCSname(), * fixed call to getlogin(), cosmetic changes on output, * changed conflicting long identifiers. * * Revision 3.1 82/10/13 16:07:56 wft * fixed type of variables receiving from getc() (char -> int). */ #include "rcsbase.h" struct lockers { /* lockers in locker option; stored */ char const * login; /* lockerlist */ struct lockers * lockerlink; } ; struct stateattri { /* states in state option; stored in */ char const * status; /* statelist */ struct stateattri * nextstate; } ; struct authors { /* login names in author option; */ char const * login; /* stored in authorlist */ struct authors * nextauthor; } ; struct Revpairs{ /* revision or branch range in -r */ unsigned numfld; /* option; stored in revlist */ char const * strtrev; char const * endrev; struct Revpairs * rnext; } ; struct Datepairs{ /* date range in -d option; stored in */ char strtdate[datesize]; /* duelst and datelist */ char enddate[datesize]; struct Datepairs * dnext; }; static char extractdelta P((struct hshentry const*)); static int checkrevpair P((char const*,char const*)); static struct hshentry const *readdeltalog P((void)); static unsigned extdate P((struct hshentry*)); static void cleanup P((void)); static void exttree P((struct hshentry*)); static void getauthor P((char*)); static void getdatepair P((char*)); static void getlocker P((char*)); static void getnumericrev P((void)); static void getrevpairs P((char*)); static void getscript P((struct hshentry*)); static void getstate P((char*)); static void putabranch P((struct hshentry const*)); static void putadelta P((struct hshentry const*,struct hshentry const*,int)); static void putforest P((struct branchhead const*)); static void putree P((struct hshentry const*)); static void putrunk P((void)); static void recentdate P((struct hshentry const*,struct Datepairs*)); static void trunclocks P((void)); static char const *insDelFormat; static int branchflag; /*set on -b */ static int exitstatus; static int lockflag; static struct Datepairs *datelist, *duelst; static struct Revpairs *revlist, *Revlst; static struct authors *authorlist; static struct lockers *lockerlist; static struct stateattri *statelist; mainProg(rlogId, "rlog", "$Id: rlog.c,v 1.2 1993/08/06 16:47:16 nate Exp $") { static char const cmdusage[] = "\nrlog usage: rlog -{bhLRt} [-v[string]] -ddates -l[lockers] -rrevs -sstates -w[logins] -Vn file ..."; register FILE *out; char *a, **newargv; struct Datepairs *currdate; char const *accessListString, *accessFormat, *commentFormat; char const *headFormat, *symbolFormat; struct access const *curaccess; struct assoc const *curassoc; struct hshentry const *delta; struct lock const *currlock; int descflag, selectflag; int onlylockflag; /* print only files with locks */ int versionlist; char *vstring; int onlyRCSflag; /* print only RCS file name */ unsigned revno; descflag = selectflag = true; versionlist = onlylockflag = onlyRCSflag = false; vstring=0; out = stdout; suffixes = X_DEFAULT; argc = getRCSINIT(argc, argv, &newargv); argv = newargv; while (a = *++argv, 0<--argc && *a++=='-') { switch (*a++) { case 'L': onlylockflag = true; break; case 'R': onlyRCSflag =true; break; case 'l': lockflag = true; getlocker(a); break; case 'b': branchflag = true; break; case 'r': getrevpairs(a); break; case 'd': getdatepair(a); break; case 's': getstate(a); break; case 'w': getauthor(a); break; case 'h': descflag = false; break; case 't': selectflag = false; break; case 'q': /* This has no effect; it's here for consistency. */ quietflag = true; break; case 'x': suffixes = a; break; case 'V': setRCSversion(*argv); break; case 'v': versionlist = true; vstring = a; break; default: faterror("unknown option: %s%s", *argv, cmdusage); }; } /* end of option processing */ if (argc<1) faterror("no input file%s", cmdusage); if (! (descflag|selectflag)) { warn("-t overrides -h."); descflag = true; } if (RCSversion < VERSION(5)) { accessListString = "\naccess list: "; accessFormat = " %s"; commentFormat = "\ncomment leader: \""; headFormat = "\nRCS file: %s; Working file: %s\nhead: %s%s\nbranch: %s%s\nlocks: "; insDelFormat = " lines added/del: %lu/%lu"; symbolFormat = " %s: %s;"; } else { accessListString = "\naccess list:"; accessFormat = "\n\t%s"; commentFormat = "\ncomment leader: \""; headFormat = "\nRCS file: %s\nWorking file: %s\nhead:%s%s\nbranch:%s%s\nlocks:%s"; insDelFormat = " lines: +%lu -%lu"; symbolFormat = "\n\t%s: %s"; } /* now handle all filenames */ do { ffree(); if (pairfilenames(argc, argv, rcsreadopen, true, false) <= 0) continue; /* now RCSfilename contains the name of the RCS file, and finptr * the file descriptor. Workfilename contains the name of the * working file. */ /* Keep only those locks given by -l. */ if (lockflag) trunclocks(); /* do nothing if -L is given and there are no locks*/ if (onlylockflag && !Locks) continue; if ( versionlist ) { aprintf(out, "%s%s %s\n", vstring, workfilename, Head->num); continue; } if ( onlyRCSflag ) { aprintf(out, "%s\n", RCSfilename); continue; } /* print RCS filename , working filename and optional administrative information */ /* could use getfullRCSname() here, but that is very slow */ aprintf(out, headFormat, RCSfilename, workfilename, Head ? " " : "", Head ? Head->num : "", Dbranch ? " " : "", Dbranch ? Dbranch : "", StrictLocks ? " strict" : "" ); currlock = Locks; while( currlock ) { aprintf(out, symbolFormat, currlock->login, currlock->delta->num); currlock = currlock->nextlock; } if (StrictLocks && RCSversionlogin); curaccess = curaccess->nextaccess; } aputs("\nsymbolic names:", out); /* print symbolic names */ for (curassoc=Symbols; curassoc; curassoc=curassoc->nextassoc) aprintf(out, symbolFormat, curassoc->symbol, curassoc->num); aputs(commentFormat, out); awrite(Comment.string, Comment.size, out); aputs("\"\n", out); if (VERSION(5)<=RCSversion || Expand != KEYVAL_EXPAND) aprintf(out, "keyword substitution: %s\n", expand_names[Expand] ); gettree(); aprintf(out, "total revisions: %u", TotalDeltas); revno = 0; if (Head && selectflag & descflag) { getnumericrev(); /* get numeric revision or branch names */ exttree(Head); /* get most recently date of the dates pointed by duelst */ currdate = duelst; while( currdate) { VOID sprintf(currdate->strtdate,DATEFORM,0,0,0,0,0,0); recentdate(Head, currdate); currdate = currdate->dnext; } revno = extdate(Head); aprintf(out, ";\tselected revisions: %u", revno); } afputc('\n',out); if (descflag) { aputs("description:\n", out); getdesc(true); } if (revno) { while (! (delta = readdeltalog())->selector || --revno) ; if (delta->next && countnumflds(delta->num)==2) /* Read through delta->next to get its insertlns. */ while (readdeltalog() != delta->next) ; putrunk(); putree(Head); } aputs("----------------------------\n", out); aputs("=============================================================================\n",out); } while (cleanup(), ++argv, --argc >= 1); Ofclose(out); exitmain(exitstatus); } static void cleanup() { if (nerror) exitstatus = EXIT_FAILURE; Izclose(&finptr); } #if lint # define exiterr rlogExit #endif exiting void exiterr() { _exit(EXIT_FAILURE); } static void putrunk() /* function: print revisions chosen, which are in trunk */ { register struct hshentry const *ptr; for (ptr = Head; ptr; ptr = ptr->next) putadelta(ptr, ptr->next, true); } static void putree(root) struct hshentry const *root; /* function: print delta tree (not including trunk) in reverse order on each branch */ { if ( root == nil ) return; putree(root->next); putforest(root->branches); } static void putforest(branchroot) struct branchhead const *branchroot; /* function: print branches that has the same direct ancestor */ { if ( branchroot == nil ) return; putforest(branchroot->nextbranch); putabranch(branchroot->hsh); putree(branchroot->hsh); } static void putabranch(root) struct hshentry const *root; /* function : print one branch */ { if ( root == nil) return; putabranch(root->next); putadelta(root, root, false); } static void putadelta(node,editscript,trunk) register struct hshentry const *node, *editscript; int trunk; /* function: Print delta node if node->selector is set. */ /* editscript indicates where the editscript is stored */ /* trunk indicated whether this node is in trunk */ { static char emptych[] = EMPTYLOG; register FILE *out; char const *s; size_t n; struct branchhead const *newbranch; struct buf branchnum; char datebuf[datesize]; if (!node->selector) return; out = stdout; aprintf(out, "----------------------------\nrevision %s", node->num ); if ( node->lockedby ) aprintf(out, "\tlocked by: %s;", node->lockedby); aprintf(out, "\ndate: %s; author: %s; state: %s;", date2str(node->date, datebuf), node->author, node->state ); if ( editscript ) if(trunk) aprintf(out, insDelFormat, editscript->deletelns, editscript->insertlns); else aprintf(out, insDelFormat, editscript->insertlns, editscript->deletelns); newbranch = node->branches; if ( newbranch ) { bufautobegin(&branchnum); aputs("\nbranches:", out); while( newbranch ) { getbranchno(newbranch->hsh->num, &branchnum); aprintf(out, " %s;", branchnum.string); newbranch = newbranch->nextbranch; } bufautoend(&branchnum); } afputc('\n', out); s = node->log.string; if (!(n = node->log.size)) { s = emptych; n = sizeof(emptych)-1; } awrite(s, n, out); if (s[n-1] != '\n') afputc('\n', out); } static struct hshentry const * readdeltalog() /* Function : get the log message and skip the text of a deltatext node. * Return the delta found. * Assumes the current lexeme is not yet in nexttok; does not * advance nexttok. */ { register struct hshentry * Delta; struct buf logbuf; struct cbuf cb; if (eoflex()) fatserror("missing delta log"); nextlex(); if (!(Delta = getnum())) fatserror("delta number corrupted"); getkeystring(Klog); if (Delta->log.string) fatserror("duplicate delta log"); bufautobegin(&logbuf); cb = savestring(&logbuf); Delta->log = bufremember(&logbuf, cb.size); nextlex(); while (nexttok==ID && strcmp(NextString,Ktext)!=0) ignorephrase(); getkeystring(Ktext); Delta->insertlns = Delta->deletelns = 0; if ( Delta != Head) getscript(Delta); else readstring(); return Delta; } static void getscript(Delta) struct hshentry * Delta; /* function: read edit script of Delta and count how many lines added */ /* and deleted in the script */ { int ed; /* editor command */ declarecache; register RILE *fin; register int c; register unsigned long i; struct diffcmd dc; fin = finptr; setupcache(fin); initdiffcmd(&dc); while (0 <= (ed = getdiffcmd(fin,true,(FILE *)0,&dc))) if (!ed) Delta->deletelns += dc.nlines; else { /* skip scripted lines */ i = dc.nlines; Delta->insertlns += i; cache(fin); do { for (;;) { cacheget(c); switch (c) { default: continue; case SDELIM: cacheget(c); if (c == SDELIM) continue; if (--i) fatserror("unexpected end to edit script"); nextc = c; uncache(fin); return; case '\n': break; } break; } ++rcsline; } while (--i); uncache(fin); } } static void exttree(root) struct hshentry *root; /* function: select revisions , starting with root */ { struct branchhead const *newbranch; if (root == nil) return; root->selector = extractdelta(root); root->log.string = nil; exttree(root->next); newbranch = root->branches; while( newbranch ) { exttree(newbranch->hsh); newbranch = newbranch->nextbranch; } } static void getlocker(argv) char * argv; /* function : get the login names of lockers from command line */ /* and store in lockerlist. */ { register char c; struct lockers * newlocker; argv--; while( ( c = (*++argv)) == ',' || c == ' ' || c == '\t' || c == '\n' || c == ';') ; if ( c == '\0') { lockerlist=nil; return; } while( c != '\0' ) { newlocker = talloc(struct lockers); newlocker->lockerlink = lockerlist; newlocker->login = argv; lockerlist = newlocker; while ( ( c = (*++argv)) != ',' && c != '\0' && c != ' ' && c != '\t' && c != '\n' && c != ';') ; *argv = '\0'; if ( c == '\0' ) return; while( ( c = (*++argv)) == ',' || c == ' ' || c == '\t' || c == '\n' || c == ';') ; } } static void getauthor(argv) char *argv; /* function: get the author's name from command line */ /* and store in authorlist */ { register c; struct authors * newauthor; argv--; while( ( c = (*++argv)) == ',' || c == ' ' || c == '\t' || c == '\n' || c == ';') ; if ( c == '\0' ) { authorlist = talloc(struct authors); authorlist->login = getusername(false); authorlist->nextauthor = nil; return; } while( c != '\0' ) { newauthor = talloc(struct authors); newauthor->nextauthor = authorlist; newauthor->login = argv; authorlist = newauthor; while( ( c = *++argv) != ',' && c != '\0' && c != ' ' && c != '\t' && c != '\n' && c != ';') ; * argv = '\0'; if ( c == '\0') return; while( ( c = (*++argv)) == ',' || c == ' ' || c == '\t' || c == '\n' || c == ';') ; } } static void getstate(argv) char * argv; /* function : get the states of revisions from command line */ /* and store in statelist */ { register char c; struct stateattri *newstate; argv--; while( ( c = (*++argv)) == ',' || c == ' ' || c == '\t' || c == '\n' || c == ';') ; if ( c == '\0'){ warn("missing state attributes after -s options"); return; } while( c != '\0' ) { newstate = talloc(struct stateattri); newstate->nextstate = statelist; newstate->status = argv; statelist = newstate; while( (c = (*++argv)) != ',' && c != '\0' && c != ' ' && c != '\t' && c != '\n' && c != ';') ; *argv = '\0'; if ( c == '\0' ) return; while( ( c = (*++argv)) == ',' || c == ' ' || c == '\t' || c == '\n' || c == ';') ; } } static void trunclocks() /* Function: Truncate the list of locks to those that are held by the */ /* id's on lockerlist. Do not truncate if lockerlist empty. */ { struct lockers const *plocker; struct lock * plocked, * nextlocked; if ( (lockerlist == nil) || (Locks == nil)) return; /* shorten Locks to those contained in lockerlist */ plocked = Locks; Locks = nil; while( plocked != nil) { plocker = lockerlist; while((plocker != nil) && ( strcmp(plocker->login, plocked->login)!=0)) plocker = plocker->lockerlink; nextlocked = plocked->nextlock; if ( plocker != nil) { plocked->nextlock = Locks; Locks = plocked; } plocked = nextlocked; } } static void recentdate(root, pd) struct hshentry const *root; struct Datepairs *pd; /* function: Finds the delta that is closest to the cutoff date given by */ /* pd among the revisions selected by exttree. */ /* Successively narrows down the interval given by pd, */ /* and sets the strtdate of pd to the date of the selected delta */ { struct branchhead const *newbranch; if ( root == nil) return; if (root->selector) { if ( cmpnum(root->date, pd->strtdate) >= 0 && cmpnum(root->date, pd->enddate) <= 0) VOID strcpy(pd->strtdate, root->date); } recentdate(root->next, pd); newbranch = root->branches; while( newbranch) { recentdate(newbranch->hsh, pd); newbranch = newbranch->nextbranch; } } static unsigned extdate(root) struct hshentry * root; /* function: select revisions which are in the date range specified */ /* in duelst and datelist, start at root */ /* Yield number of revisions selected, including those already selected. */ { struct branchhead const *newbranch; struct Datepairs const *pdate; unsigned revno; if (!root) return 0; if ( datelist || duelst) { pdate = datelist; while( pdate ) { if ( (pdate->strtdate)[0] == '\0' || cmpnum(root->date,pdate->strtdate) >= 0){ if ((pdate->enddate)[0] == '\0' || cmpnum(pdate->enddate,root->date) >= 0) break; } pdate = pdate->dnext; } if ( pdate == nil) { pdate = duelst; for (;;) { if (!pdate) { root->selector = false; break; } if ( cmpnum(root->date, pdate->strtdate) == 0) break; pdate = pdate->dnext; } } } revno = root->selector + extdate(root->next); newbranch = root->branches; while( newbranch ) { revno += extdate(newbranch->hsh); newbranch = newbranch->nextbranch; } return revno; } static char extractdelta(pdelta) struct hshentry const *pdelta; /* function: compare information of pdelta to the authorlist, lockerlist,*/ /* statelist, revlist and yield true if pdelta is selected. */ { struct lock const *plock; struct stateattri const *pstate; struct authors const *pauthor; struct Revpairs const *prevision; unsigned length; if ((pauthor = authorlist)) /* only certain authors wanted */ while (strcmp(pauthor->login, pdelta->author) != 0) if (!(pauthor = pauthor->nextauthor)) return false; if ((pstate = statelist)) /* only certain states wanted */ while (strcmp(pstate->status, pdelta->state) != 0) if (!(pstate = pstate->nextstate)) return false; if (lockflag) /* only locked revisions wanted */ for (plock = Locks; ; plock = plock->nextlock) if (!plock) return false; else if (plock->delta == pdelta) break; if ((prevision = Revlst)) /* only certain revs or branches wanted */ for (;;) { length = prevision->numfld; if ( countnumflds(pdelta->num) == length+(length&1) && 0 <= compartial(pdelta->num, prevision->strtrev, length) && 0 <= compartial(prevision->endrev, pdelta->num, length) ) break; if (!(prevision = prevision->rnext)) return false; } return true; } static void getdatepair(argv) char * argv; /* function: get time range from command line and store in datelist if */ /* a time range specified or in duelst if a time spot specified */ { register char c; struct Datepairs * nextdate; char const * rawdate; int switchflag; argv--; while( ( c = (*++argv)) == ',' || c == ' ' || c == '\t' || c == '\n' || c == ';') ; if ( c == '\0' ) { warn("missing date/time after -d"); return; } while( c != '\0' ) { switchflag = false; nextdate = talloc(struct Datepairs); if ( c == '<' ) { /* case: -d strtdate)[0] = '\0'; } else if (c == '>') { /* case: -d'>date' */ c = *++argv; (nextdate->enddate)[0] = '\0'; switchflag = true; } else { rawdate = argv; while( c != '<' && c != '>' && c != ';' && c != '\0') c = *++argv; *argv = '\0'; if ( c == '>' ) switchflag=true; str2date(rawdate, switchflag ? nextdate->enddate : nextdate->strtdate); if ( c == ';' || c == '\0') { /* case: -d date */ VOID strcpy(nextdate->enddate,nextdate->strtdate); nextdate->dnext = duelst; duelst = nextdate; goto end; } else { /* case: -d date< or -d date>; see switchflag */ while ( (c= *++argv) == ' ' || c=='\t' || c=='\n'); if ( c == ';' || c == '\0') { /* second date missing */ if (switchflag) *nextdate->strtdate= '\0'; else *nextdate->enddate= '\0'; nextdate->dnext = datelist; datelist = nextdate; goto end; } } } rawdate = argv; while( c != '>' && c != '<' && c != ';' && c != '\0') c = *++argv; *argv = '\0'; str2date(rawdate, switchflag ? nextdate->strtdate : nextdate->enddate); nextdate->dnext = datelist; datelist = nextdate; end: if ( c == '\0') return; while( (c = *++argv) == ';' || c == ' ' || c == '\t' || c =='\n'); } } static void getnumericrev() /* function: get the numeric name of revisions which stored in revlist */ /* and then stored the numeric names in Revlst */ /* if branchflag, also add default branch */ { struct Revpairs * ptr, *pt; unsigned n; struct buf s, e; char const *lrev; struct buf const *rstart, *rend; Revlst = nil; ptr = revlist; bufautobegin(&s); bufautobegin(&e); while( ptr ) { n = 0; rstart = &s; rend = &e; switch (ptr->numfld) { case 1: /* -r rev */ if (expandsym(ptr->strtrev, &s)) { rend = &s; n = countnumflds(s.string); if (!n && (lrev = tiprev())) { bufscpy(&s, lrev); n = countnumflds(lrev); } } break; case 2: /* -r rev- */ if (expandsym(ptr->strtrev, &s)) { bufscpy(&e, s.string); n = countnumflds(s.string); (n<2 ? e.string : strrchr(e.string,'.'))[0] = 0; } break; case 3: /* -r -rev */ if (expandsym(ptr->endrev, &e)) { if ((n = countnumflds(e.string)) < 2) bufscpy(&s, ".1"); else { bufscpy(&s, e.string); VOID strcpy(strrchr(s.string,'.'), ".1"); } } break; default: /* -r rev1-rev2 */ if ( expandsym(ptr->strtrev, &s) && expandsym(ptr->endrev, &e) && checkrevpair(s.string, e.string) ) { n = countnumflds(s.string); /* Swap if out of order. */ if (compartial(s.string,e.string,n) > 0) { rstart = &e; rend = &s; } } break; } if (n) { pt = ftalloc(struct Revpairs); pt->numfld = n; pt->strtrev = fstr_save(rstart->string); pt->endrev = fstr_save(rend->string); pt->rnext = Revlst; Revlst = pt; } ptr = ptr->rnext; } /* Now take care of branchflag */ if (branchflag && (Dbranch||Head)) { pt = ftalloc(struct Revpairs); pt->strtrev = pt->endrev = Dbranch ? Dbranch : fstr_save(partialno(&s,Head->num,1)); pt->rnext=Revlst; Revlst=pt; pt->numfld = countnumflds(pt->strtrev); } bufautoend(&s); bufautoend(&e); } static int checkrevpair(num1,num2) char const *num1, *num2; /* function: check whether num1, num2 are legal pair,i.e. only the last field are different and have same number of fields( if length <= 2, may be different if first field) */ { unsigned length = countnumflds(num1); if ( countnumflds(num2) != length || 2 < length && compartial(num1, num2, length-1) != 0 ) { error("invalid branch or revision pair %s : %s", num1, num2); return false; } return true; } static void getrevpairs(argv) register char * argv; /* function: get revision or branch range from command line, and */ /* store in revlist */ { register char c; struct Revpairs * nextrevpair; int separator; c = *argv; /* Support old ambiguous '-' syntax; this will go away. */ if (strchr(argv,':')) separator = ':'; else { if (strchr(argv,'-') && VERSION(5) <= RCSversion) warn("`-' is obsolete in `-r%s'; use `:' instead", argv); separator = '-'; } for (;;) { while (c==' ' || c=='\t' || c=='\n') c = *++argv; nextrevpair = talloc(struct Revpairs); nextrevpair->rnext = revlist; revlist = nextrevpair; nextrevpair->numfld = 1; nextrevpair->strtrev = argv; for (;; c = *++argv) { switch (c) { default: continue; case '\0': case ' ': case '\t': case '\n': case ',': case ';': break; case ':': case '-': if (c == separator) break; continue; } break; } *argv = '\0'; while (c==' ' || c=='\t' || c=='\n') c = *++argv; if (c == separator) { while( (c =(*++argv)) == ' ' || c == '\t' || c =='\n') ; nextrevpair->endrev = argv; for (;; c = *++argv) { switch (c) { default: continue; case '\0': case ' ': case '\t': case '\n': case ',': case ';': break; case ':': case '-': if (c == separator) continue; break; } break; } *argv = '\0'; while (c==' ' || c=='\t' || c =='\n') c = *++argv; nextrevpair->numfld = !nextrevpair->endrev[0] ? 2 /* -rrev- */ : !nextrevpair->strtrev[0] ? 3 /* -r-rev */ : 4 /* -rrev1-rev2 */; } if (!c) break; if (c!=',' && c!=';') error("missing `,' near `%c%s'", c, argv+1); } }