+++ /dev/null
-/*
-** picksbr.c -- routines to help pick along...
-**
-** This code is Copyright (c) 2002, by the authors of nmh. See the
-** COPYRIGHT file in the root directory of the nmh distribution for
-** complete copyright information.
-*/
-
-#include <h/mh.h>
-#include <h/tws.h>
-#include <h/picksbr.h>
-#include <h/utils.h>
-
-#ifdef TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# ifdef TM_IN_SYS_TIME
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
-static struct swit parswit[] = {
-#define PRAND 0
- { "and", 0 },
-#define PROR 1
- { "or", 0 },
-#define PRNOT 2
- { "not", 0 },
-#define PRLBR 3
- { "lbrace", 0 },
-#define PRRBR 4
- { "rbrace", 0 },
-#define PRCC 5
- { "cc pattern", 0 },
-#define PRDATE 6
- { "date pattern", 0 },
-#define PRFROM 7
- { "from pattern", 0 },
-#define PRSRCH 8
- { "search pattern", 0 },
-#define PRSUBJ 9
- { "subject pattern", 0 },
-#define PRTO 10
- { "to pattern", 0 },
-#define PROTHR 11
- { "-othercomponent pattern", 15 },
-#define PRAFTR 12
- { "after date", 0 },
-#define PRBEFR 13
- { "before date", 0 },
-#define PRDATF 14
- { "datefield field", 5 },
- { NULL, 0 }
-};
-
-/* DEFINITIONS FOR PATTERN MATCHING */
-
-/*
-** We really should be using re_comp() and re_exec() here. Unfortunately,
-** pick advertises that lowercase characters matches characters of both
-** cases. Since re_exec() doesn't exhibit this behavior, we are stuck
-** with this version. Furthermore, we need to be able to save and restore
-** the state of the pattern matcher in order to do things "efficiently".
-**
-** The matching power of this algorithm isn't as powerful as the re_xxx()
-** routines (no \(xxx\) and \n constructs). Such is life.
-*/
-
-#define CCHR 2
-#define CDOT 4
-#define CCL 6
-#define NCCL 8
-#define CDOL 10
-#define CEOF 11
-
-#define STAR 01
-
-#define LBSIZE 1024
-#define ESIZE 1024
-
-
-static char linebuf[LBSIZE + 1];
-
-/* the magic array for case-independence */
-static char cc[] = {
- 0000,0001,0002,0003,0004,0005,0006,0007,
- 0010,0011,0012,0013,0014,0015,0016,0017,
- 0020,0021,0022,0023,0024,0025,0026,0027,
- 0030,0031,0032,0033,0034,0035,0036,0037,
- 0040,0041,0042,0043,0044,0045,0046,0047,
- 0050,0051,0052,0053,0054,0055,0056,0057,
- 0060,0061,0062,0063,0064,0065,0066,0067,
- 0070,0071,0072,0073,0074,0075,0076,0077,
- 0100,0141,0142,0143,0144,0145,0146,0147,
- 0150,0151,0152,0153,0154,0155,0156,0157,
- 0160,0161,0162,0163,0164,0165,0166,0167,
- 0170,0171,0172,0133,0134,0135,0136,0137,
- 0140,0141,0142,0143,0144,0145,0146,0147,
- 0150,0151,0152,0153,0154,0155,0156,0157,
- 0160,0161,0162,0163,0164,0165,0166,0167,
- 0170,0171,0172,0173,0174,0175,0176,0177,
-
- 0200,0201,0202,0203,0204,0205,0206,0207,
- 0210,0211,0212,0213,0214,0215,0216,0217,
- 0220,0221,0222,0223,0224,0225,0226,0227,
- 0230,0231,0232,0233,0234,0235,0236,0237,
- 0240,0241,0242,0243,0244,0245,0246,0247,
- 0250,0251,0252,0253,0254,0255,0256,0257,
- 0260,0261,0262,0263,0264,0265,0266,0267,
- 0270,0271,0272,0273,0274,0275,0276,0277,
- 0300,0301,0302,0303,0304,0305,0306,0307,
- 0310,0311,0312,0313,0314,0315,0316,0317,
- 0320,0321,0322,0323,0324,0325,0326,0327,
- 0330,0331,0332,0333,0334,0335,0336,0337,
- 0340,0341,0342,0343,0344,0345,0346,0347,
- 0350,0351,0352,0353,0354,0355,0356,0357,
- 0360,0361,0362,0363,0364,0365,0366,0367,
- 0370,0371,0372,0373,0374,0375,0376,0377,
-};
-
-/*
-** DEFINITIONS FOR NEXUS
-*/
-
-#define nxtarg() (*argp ? *argp++ : NULL)
-#define prvarg() argp--
-
-#define padvise if (!talked++) advise
-
-struct nexus {
- int (*n_action)();
-
- union {
- /* for {OR,AND,NOT}action */
- struct {
- struct nexus *un_L_child;
- struct nexus *un_R_child;
- } st1;
-
- /* for GREPaction */
- struct {
- int un_header;
- int un_circf;
- char un_expbuf[ESIZE];
- char *un_patbuf;
- } st2;
-
- /* for TWSaction */
- struct {
- char *un_datef;
- int un_after;
- struct tws un_tws;
- } st3;
- } un;
-};
-
-#define n_L_child un.st1.un_L_child
-#define n_R_child un.st1.un_R_child
-
-#define n_header un.st2.un_header
-#define n_circf un.st2.un_circf
-#define n_expbuf un.st2.un_expbuf
-#define n_patbuf un.st2.un_patbuf
-
-#define n_datef un.st3.un_datef
-#define n_after un.st3.un_after
-#define n_tws un.st3.un_tws
-
-static int talked;
-static int pdebug = 0;
-
-static char *datesw;
-static char **argp;
-
-static struct nexus *head;
-
-/*
-** prototypes for date routines
-*/
-static struct tws *tws_parse();
-static struct tws *tws_special();
-
-/*
-** static prototypes
-*/
-static void PRaction();
-static int gcompile();
-static int advance();
-static int cclass();
-static int tcompile();
-
-static struct nexus *parse();
-static struct nexus *nexp1();
-static struct nexus *nexp2();
-static struct nexus *nexp3();
-static struct nexus *newnexus();
-
-static int ORaction();
-static int ANDaction();
-static int NOTaction();
-static int GREPaction();
-static int TWSaction();
-
-
-int
-pcompile(char **vec, char *date)
-{
- register char *cp;
-
- if ((cp = getenv("MHPDEBUG")) && *cp)
- pdebug++;
-
- argp = vec;
- if ((datesw = date) == NULL)
- datesw = "date";
- talked = 0;
-
- if ((head = parse()) == NULL)
- return (talked ? 0 : 1);
-
- if (*argp) {
- padvise(NULL, "%s unexpected", *argp);
- return 0;
- }
-
- return 1;
-}
-
-
-static struct nexus *
-parse(void)
-{
- register char *cp;
- register struct nexus *n, *o;
-
- if ((n = nexp1()) == NULL || (cp = nxtarg()) == NULL)
- return n;
-
- if (*cp != '-') {
- padvise(NULL, "%s unexpected", cp);
- return NULL;
- }
-
- if (*++cp == '-')
- goto header;
- switch (smatch(cp, parswit)) {
- case AMBIGSW:
- ambigsw(cp, parswit);
- talked++;
- return NULL;
- case UNKWNSW:
- fprintf(stderr, "-%s unknown\n", cp);
- talked++;
- return NULL;
-
- case PROR:
- o = newnexus(ORaction);
- o->n_L_child = n;
- if ((o->n_R_child = parse()))
- return o;
- padvise(NULL, "missing disjunctive");
- return NULL;
-
-header: ;
- default:
- prvarg();
- return n;
- }
-}
-
-static struct nexus *
-nexp1(void)
-{
- register char *cp;
- register struct nexus *n, *o;
-
- if ((n = nexp2()) == NULL || (cp = nxtarg()) == NULL)
- return n;
-
- if (*cp != '-') {
- padvise(NULL, "%s unexpected", cp);
- return NULL;
- }
-
- if (*++cp == '-')
- goto header;
- switch (smatch(cp, parswit)) {
- case AMBIGSW:
- ambigsw(cp, parswit);
- talked++;
- return NULL;
- case UNKWNSW:
- fprintf(stderr, "-%s unknown\n", cp);
- talked++;
- return NULL;
-
- case PRAND:
- o = newnexus(ANDaction);
- o->n_L_child = n;
- if ((o->n_R_child = nexp1()))
- return o;
- padvise(NULL, "missing conjunctive");
- return NULL;
-
-header: ;
- default:
- prvarg();
- return n;
- }
-}
-
-
-static struct nexus *
-nexp2(void)
-{
- register char *cp;
- register struct nexus *n;
-
- if ((cp = nxtarg()) == NULL)
- return NULL;
-
- if (*cp != '-') {
- prvarg();
- return nexp3();
- }
-
- if (*++cp == '-')
- goto header;
- switch (smatch(cp, parswit)) {
- case AMBIGSW:
- ambigsw(cp, parswit);
- talked++;
- return NULL;
- case UNKWNSW:
- fprintf(stderr, "-%s unknown\n", cp);
- talked++;
- return NULL;
-
- case PRNOT:
- n = newnexus(NOTaction);
- if ((n->n_L_child = nexp3()))
- return n;
- padvise(NULL, "missing negation");
- return NULL;
-
-header: ;
- default:
- prvarg();
- return nexp3();
- }
-}
-
-static struct nexus *
-nexp3(void)
-{
- int i;
- register char *cp, *dp;
- char buffer[BUFSIZ], temp[64];
- register struct nexus *n;
-
- if ((cp = nxtarg()) == NULL)
- return NULL;
-
- if (*cp != '-') {
- padvise(NULL, "%s unexpected", cp);
- return NULL;
- }
-
- if (*++cp == '-') {
- dp = ++cp;
- goto header;
- }
- switch (i = smatch(cp, parswit)) {
- case AMBIGSW:
- ambigsw(cp, parswit);
- talked++;
- return NULL;
- case UNKWNSW:
- fprintf(stderr, "-%s unknown\n", cp);
- talked++;
- return NULL;
-
- case PRLBR:
- if ((n = parse()) == NULL) {
- padvise(NULL, "missing group");
- return NULL;
- }
- if ((cp = nxtarg()) == NULL) {
- padvise(NULL, "missing -rbrace");
- return NULL;
- }
- if (*cp++ == '-' && smatch(cp, parswit) == PRRBR)
- return n;
- padvise(NULL, "%s unexpected", --cp);
- return NULL;
-
- default:
- prvarg();
- return NULL;
-
- case PRCC:
- case PRDATE:
- case PRFROM:
- case PRTO:
- case PRSUBJ:
- strncpy(temp, parswit[i].sw, sizeof(temp));
- temp[sizeof(temp) - 1] = '\0';
- dp = *brkstring(temp, " ", NULL);
-header: ;
- if (!(cp = nxtarg())) { /* allow -xyz arguments */
- padvise(NULL, "missing argument to %s", argp[-2]);
- return NULL;
- }
- n = newnexus(GREPaction);
- n->n_header = 1;
- snprintf(buffer, sizeof(buffer), "^%s[ \t]*:.*%s", dp, cp);
- dp = buffer;
- goto pattern;
-
- case PRSRCH:
- n = newnexus(GREPaction);
- n->n_header = 0;
- if (!(cp = nxtarg())) { /* allow -xyz arguments */
- padvise(NULL, "missing argument to %s", argp[-2]);
- return NULL;
- }
- dp = cp;
-pattern: ;
- if (!gcompile(n, dp)) {
- padvise(NULL, "pattern error in %s %s", argp[-2], cp);
- return NULL;
- }
- n->n_patbuf = getcpy(dp);
- return n;
-
- case PROTHR:
- padvise(NULL, "internal error!");
- return NULL;
-
- case PRDATF:
- if (!(datesw = nxtarg()) || *datesw == '-') {
- padvise(NULL, "missing argument to %s",
- argp[-2]);
- return NULL;
- }
- return nexp3();
-
- case PRAFTR:
- case PRBEFR:
- if (!(cp = nxtarg())) { /* allow -xyz arguments */
- padvise(NULL, "missing argument to %s", argp[-2]);
- return NULL;
- }
- n = newnexus(TWSaction);
- n->n_datef = datesw;
- if (!tcompile(cp, &n->n_tws, n->n_after = i == PRAFTR)) {
- padvise(NULL, "unable to parse %s %s", argp[-2], cp);
- return NULL;
- }
- return n;
- }
-}
-
-
-static struct nexus *
-newnexus(int (*action)())
-{
- register struct nexus *p;
-
- if ((p = (struct nexus *) calloc((size_t) 1, sizeof *p)) == NULL)
- adios(NULL, "unable to allocate component storage");
-
- p->n_action = action;
- return p;
-}
-
-
-#define args(a) a, fp, msgnum, start, stop
-#define params args(n)
-#define plist \
- register struct nexus *n; \
- register FILE *fp; \
- int msgnum; \
- long start, \
- stop;
-
-int
-pmatches(FILE *fp, int msgnum, long start, long stop)
-{
- if (!head)
- return 1;
-
- if (!talked++ && pdebug)
- PRaction(head, 0);
-
- return (*head->n_action) (args(head));
-}
-
-
-static void
-PRaction(struct nexus *n, int level)
-{
- register int i;
-
- for (i = 0; i < level; i++)
- fprintf(stderr, "| ");
-
- if (n->n_action == ORaction) {
- fprintf(stderr, "OR\n");
- PRaction(n->n_L_child, level + 1);
- PRaction(n->n_R_child, level + 1);
- return;
- }
- if (n->n_action == ANDaction) {
- fprintf(stderr, "AND\n");
- PRaction(n->n_L_child, level + 1);
- PRaction(n->n_R_child, level + 1);
- return;
- }
- if (n->n_action == NOTaction) {
- fprintf(stderr, "NOT\n");
- PRaction(n->n_L_child, level + 1);
- return;
- }
- if (n->n_action == GREPaction) {
- fprintf(stderr, "PATTERN(%s) %s\n",
- n->n_header ? "header" : "body", n->n_patbuf);
- return;
- }
- if (n->n_action == TWSaction) {
- fprintf(stderr, "TEMPORAL(%s) %s: %s\n",
- n->n_after ? "after" : "before", n->n_datef,
- dasctime(&n->n_tws, TW_NULL));
- return;
- }
- fprintf(stderr, "UNKNOWN(0x%x)\n",
- (unsigned int)(unsigned long) (*n->n_action));
-}
-
-
-static int
-ORaction(params)
-plist
-{
- if ((*n->n_L_child->n_action) (args(n->n_L_child)))
- return 1;
- return (*n->n_R_child->n_action) (args(n->n_R_child));
-}
-
-
-static int
-ANDaction(params)
-plist
-{
- if (!(*n->n_L_child->n_action) (args(n->n_L_child)))
- return 0;
- return (*n->n_R_child->n_action) (args(n->n_R_child));
-}
-
-
-static int
-NOTaction(params)
-plist
-{
- return (!(*n->n_L_child->n_action) (args(n->n_L_child)));
-}
-
-
-static int
-gcompile(struct nexus *n, char *astr)
-{
- register int c;
- int cclcnt;
- register unsigned char *ep, *dp, *sp, *lastep = 0;
-
- dp = (ep = n->n_expbuf) + sizeof n->n_expbuf;
- sp = astr;
- if (*sp == '^') {
- n->n_circf = 1;
- sp++;
- }
- else
- n->n_circf = 0;
- for (;;) {
- if (ep >= dp)
- goto cerror;
- if ((c = *sp++) != '*')
- lastep = ep;
- switch (c) {
- case '\0':
- *ep++ = CEOF;
- return 1;
-
- case '.':
- *ep++ = CDOT;
- continue;
-
- case '*':
- if (lastep == 0)
- goto defchar;
- *lastep |= STAR;
- continue;
-
- case '$':
- if (*sp != '\0')
- goto defchar;
- *ep++ = CDOL;
- continue;
-
- case '[':
- *ep++ = CCL;
- *ep++ = 0;
- cclcnt = 0;
- if ((c = *sp++) == '^') {
- c = *sp++;
- ep[-2] = NCCL;
- }
- if (c == '-') {
- *ep++ = c;
- cclcnt++;
- c = *sp++;
- }
- do {
- if (c == '-' && *sp != '\0' && *sp != ']') {
- for (c = ep[-1]+1; c < *sp; c++) {
- *ep++ = c;
- cclcnt++;
- if (c == '\0' || ep >= dp)
- goto cerror;
- }
- } else {
- *ep++ = c;
- cclcnt++;
- if (c == '\0' || ep >= dp)
- goto cerror;
- }
- } while ((c = *sp++) != ']');
- if (cclcnt > 255)
- goto cerror;
- lastep[1] = cclcnt;
- continue;
-
- case '\\':
- if ((c = *sp++) == '\0')
- goto cerror;
-defchar:
- default:
- *ep++ = CCHR;
- *ep++ = c;
- }
- }
-
-cerror: ;
- return 0;
-}
-
-
-static int
-GREPaction(params)
-plist
-{
- int c, body, lf;
- long pos = start;
- register char *p1, *p2, *ebp, *cbp;
- char ibuf[BUFSIZ];
-
- fseek(fp, start, SEEK_SET);
- body = 0;
- ebp = cbp = ibuf;
- for (;;) {
- if (body && n->n_header)
- return 0;
- p1 = linebuf;
- p2 = cbp;
- lf = 0;
- for (;;) {
- if (p2 >= ebp) {
- if (fgets(ibuf, sizeof ibuf, fp) == NULL
- || (stop && pos >= stop)) {
- if (lf)
- break;
- return 0;
- }
- pos += (long) strlen(ibuf);
- p2 = ibuf;
- ebp = ibuf + strlen(ibuf);
- }
- c = *p2++;
- if (lf && c != '\n') {
- if (c != ' ' && c != '\t') {
- --p2;
- break;
- }
- else
- lf = 0;
- }
- if (c == '\n') {
- if (body)
- break;
- else {
- if (lf) {
- body++;
- break;
- }
- lf++;
- c = ' ';
- }
- }
- if (c && p1 < &linebuf[LBSIZE - 1])
- *p1++ = c;
- }
-
- *p1++ = 0;
- cbp = p2;
- p1 = linebuf;
- p2 = n->n_expbuf;
-
- if (n->n_circf) {
- if (advance(p1, p2))
- return 1;
- continue;
- }
-
- if (*p2 == CCHR) {
- c = p2[1];
- do {
- if (*p1 == c || cc[(unsigned char)*p1] == c)
- if (advance(p1, p2))
- return 1;
- } while (*p1++);
- continue;
- }
-
- do {
- if (advance(p1, p2))
- return 1;
- } while (*p1++);
- }
-}
-
-
-static int
-advance(char *alp, char *aep)
-{
- register unsigned char *lp, *ep, *curlp;
-
- lp = (unsigned char *)alp;
- ep = (unsigned char *)aep;
- for (;;)
- switch (*ep++) {
- case CCHR:
- if (*ep++ == *lp++ || ep[-1] == cc[lp[-1]])
- continue;
- return 0;
-
- case CDOT:
- if (*lp++)
- continue;
- return 0;
-
- case CDOL:
- if (*lp == 0)
- continue;
- return 0;
-
- case CEOF:
- return 1;
-
- case CCL:
- if (cclass(ep, *lp++, 1)) {
- ep += *ep + 1;
- continue;
- }
- return 0;
-
- case NCCL:
- if (cclass(ep, *lp++, 0)) {
- ep += *ep + 1;
- continue;
- }
- return 0;
-
- case CDOT | STAR:
- curlp = lp;
- while (*lp++)
- continue;
- goto star;
-
- case CCHR | STAR:
- curlp = lp;
- while (*lp++ == *ep || cc[lp[-1]] == *ep)
- continue;
- ep++;
- goto star;
-
- case CCL | STAR:
- case NCCL | STAR:
- curlp = lp;
- while (cclass(ep, *lp++, ep[-1] == (CCL | STAR)))
- continue;
- ep += *ep + 1;
- goto star;
-
-star:
- do {
- lp--;
- if (advance(lp, ep))
- return (1);
- } while (lp > curlp);
- return 0;
-
- default:
- admonish(NULL, "advance() botch -- you lose big");
- return 0;
- }
-}
-
-
-static int
-cclass(unsigned char *aset, int ac, int af)
-{
- register unsigned int n;
- register unsigned char c, *set;
-
- set = aset;
- if ((c = ac) == 0)
- return (0);
-
- n = *set++;
- while (n--)
- if (*set++ == c || set[-1] == cc[c])
- return (af);
-
- return (!af);
-}
-
-
-static int
-tcompile(char *ap, struct tws *tb, int isafter)
-{
- register struct tws *tw;
-
- if ((tw = tws_parse(ap, isafter)) == NULL)
- return 0;
-
- twscopy(tb, tw);
- return 1;
-}
-
-
-static struct tws *
-tws_parse(char *ap, int isafter)
-{
- char buffer[BUFSIZ];
- register struct tws *tw, *ts;
-
- if ((tw = tws_special(ap)) != NULL) {
- tw->tw_sec = tw->tw_min = isafter ? 59 : 0;
- tw->tw_hour = isafter ? 23 : 0;
- return tw;
- }
- if ((tw = dparsetime(ap)) != NULL)
- return tw;
-
- if ((ts = dlocaltimenow()) == NULL)
- return NULL;
-
- snprintf(buffer, sizeof(buffer), "%s %s", ap, dtwszone(ts));
- if ((tw = dparsetime(buffer)) != NULL)
- return tw;
-
- snprintf(buffer, sizeof(buffer), "%s %02d:%02d:%02d %s", ap,
- ts->tw_hour, ts->tw_min, ts->tw_sec, dtwszone(ts));
- if ((tw = dparsetime(buffer)) != NULL)
- return tw;
-
- snprintf(buffer, sizeof(buffer), "%02d %s %04d %s",
- ts->tw_mday, tw_moty[ts->tw_mon], ts->tw_year, ap);
- if ((tw = dparsetime(buffer)) != NULL)
- return tw;
-
- snprintf(buffer, sizeof(buffer), "%02d %s %04d %s %s",
- ts->tw_mday, tw_moty[ts->tw_mon], ts->tw_year,
- ap, dtwszone(ts));
- if ((tw = dparsetime(buffer)) != NULL)
- return tw;
-
- return NULL;
-}
-
-
-static struct tws *
-tws_special(char *ap)
-{
- int i;
- time_t clock;
- register struct tws *tw;
-
- time(&clock);
- if (!mh_strcasecmp(ap, "today"))
- return dlocaltime(&clock);
- if (!mh_strcasecmp(ap, "yesterday")) {
- clock -= (long) (60 * 60 * 24);
- return dlocaltime(&clock);
- }
- if (!mh_strcasecmp(ap, "tomorrow")) {
- clock += (long) (60 * 60 * 24);
- return dlocaltime(&clock);
- }
-
- for (i = 0; tw_ldotw[i]; i++)
- if (!mh_strcasecmp(ap, tw_ldotw[i]))
- break;
- if (tw_ldotw[i]) {
- if ((tw = dlocaltime(&clock)) == NULL)
- return NULL;
- if ((i -= tw->tw_wday) > 0)
- i -= 7;
- }
- else
- if (*ap != '-')
- return NULL;
- else /* -ddd days ago */
- i = atoi(ap); /* we should error check this */
-
- clock += (long) ((60 * 60 * 24) * i);
- return dlocaltime(&clock);
-}
-
-
-static int
-TWSaction(params)
-plist
-{
- int state;
- register char *bp;
- char buf[BUFSIZ], name[NAMESZ];
- register struct tws *tw;
-
- fseek(fp, start, SEEK_SET);
- for (state = FLD, bp = NULL;;) {
- switch (state = m_getfld(state, name, buf, sizeof buf, fp)) {
- case FLD:
- case FLDEOF:
- case FLDPLUS:
- if (bp != NULL) {
- free(bp);
- bp = NULL;
- }
- bp = getcpy(buf);
- while (state == FLDPLUS) {
- state = m_getfld(state, name, buf,
- sizeof buf, fp);
- bp = add(buf, bp);
- }
- if (!mh_strcasecmp(name, n->n_datef))
- break;
- if (state != FLDEOF)
- continue;
-
- case BODY:
- case BODYEOF:
- case FILEEOF:
- case LENERR:
- case FMTERR:
- if (state == LENERR || state == FMTERR)
- advise(NULL, "format error in message %d", msgnum);
- if (bp != NULL)
- free(bp);
- return 0;
-
- default:
- adios(NULL, "internal error -- you lose");
- }
- break;
- }
-
- if ((tw = dparsetime(bp)) == NULL)
- advise(NULL, "unable to parse %s field in message %d, matching...",
- n->n_datef, msgnum), state = 1;
- else
- state = n->n_after ? (twsort(tw, &n->n_tws) > 0)
- : (twsort(tw, &n->n_tws) < 0);
-
- if (bp != NULL)
- free(bp);
- return state;
-}
projects / mmh / blobdiff