-
/*
- * pick.c -- search for messages by content
- *
- * $Id$
- *
- * 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.
- */
+** pick.c -- search for messages by content
+**
+** This code is Copyright (c) 2002, 2008, 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>
+#include <unistd.h>
+#include <locale.h>
+#include <sysexits.h>
-/*
- * We allocate space for messages (msgs array)
- * this number of elements at a time.
- */
-#define MAXMSGS 256
-
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#include <time.h>
static struct swit switches[] = {
-#define ANDSW 0
- { "and", 0 },
-#define ORSW 1
- { "or", 0 },
-#define NOTSW 2
- { "not", 0 },
-#define LBRSW 3
- { "lbrace", 0 },
-#define RBRSW 4
- { "rbrace", 0 },
-#define CCSW 5
- { "cc pattern", 0 },
-#define DATESW 6
- { "date pattern", 0 },
-#define FROMSW 7
- { "from pattern", 0 },
-#define SRCHSW 8
- { "search pattern", 0 },
-#define SUBJSW 9
- { "subject pattern", 0 },
-#define TOSW 10
- { "to pattern", 0 },
-#define OTHRSW 11
- { "-othercomponent pattern", 0 },
-#define AFTRSW 12
- { "after date", 0 },
-#define BEFRSW 13
- { "before date", 0 },
-#define DATFDSW 14
- { "datefield field", 5 },
-#define SEQSW 15
- { "sequence name", 0 },
-#define PUBLSW 16
- { "public", 0 },
-#define NPUBLSW 17
- { "nopublic", 0 },
-#define ZEROSW 18
- { "zero", 0 },
-#define NZEROSW 19
- { "nozero", 0 },
-#define LISTSW 20
- { "list", 0 },
-#define NLISTSW 21
- { "nolist", 0 },
-#define VERSIONSW 22
- { "version", 0 },
-#define HELPSW 23
- { "help", 0 },
- { NULL, 0 }
+#define ANDSW 0
+ { "and", 0 },
+#define ORSW 1
+ { "or", 0 },
+#define NOTSW 2
+ { "not", 0 },
+#define LBRSW 3
+ { "lbrace", 0 },
+#define RBRSW 4
+ { "rbrace", 0 },
+#define CCSW 5
+ { "cc pattern", 0 },
+#define DATESW 6
+ { "date pattern", 0 },
+#define FROMSW 7
+ { "from pattern", 0 },
+#define SRCHSW 8
+ { "search pattern", 0 },
+#define SUBJSW 9
+ { "subject pattern", 0 },
+#define TOSW 10
+ { "to pattern", 0 },
+#define OTHRSW 11
+ { "-othercomponent pattern", 0 },
+#define AFTRSW 12
+ { "after date", 0 },
+#define BEFRSW 13
+ { "before date", 0 },
+#define DATFDSW 14
+ { "datefield field", 5 }, /* 5 chars required to differ from -date */
+#define SEQSW 15
+ { "sequence name", 0 },
+#define PUBLSW 16
+ { "public", 0 },
+#define NPUBLSW 17
+ { "nopublic", 2 },
+#define ZEROSW 18
+ { "zero", 0 },
+#define NZEROSW 19
+ { "nozero", 2 },
+#define LISTSW 20
+ { "list", 0 },
+#define NLISTSW 21
+ { "nolist", 2 },
+#define VERSIONSW 22
+ { "Version", 0 },
+#define HELPSW 23
+ { "help", 0 },
+ { NULL, 0 }
};
+char *version=VERSION;
+
+/*
+** static prototypes
+*/
+static int pcompile(char **, char *);
+static int pmatches(FILE *, int, long, long);
+
+
static int listsw = -1;
+void putzero_done();
int
-main (int argc, char **argv)
+main(int argc, char **argv)
{
- int publicsw = -1, zerosw = 1, seqp = 0, vecp = 0;
- int nummsgs, maxmsgs, lo, hi, msgnum;
- char *maildir, *folder = NULL, buf[100];
- char *cp, **argp, **arguments;
- char **msgs, *seqs[NUMATTRS + 1], *vec[MAXARGS];
- struct msgs *mp;
- register FILE *fp;
-
-#ifdef LOCALE
- setlocale(LC_ALL, "");
-#endif
- invo_name = r1bindex (argv[0], '/');
-
- /* read user profile/context */
- context_read();
-
- arguments = getarguments (invo_name, argc, argv, 1);
- argp = arguments;
-
- /*
- * Allocate the initial space to record message
- * names, ranges, and sequences.
- */
- nummsgs = 0;
- maxmsgs = MAXMSGS;
- msgs = (char **) mh_xmalloc ((size_t) (maxmsgs * sizeof(*msgs)));
-
- while ((cp = *argp++)) {
- if (*cp == '-') {
- if (*++cp == '-') {
- vec[vecp++] = --cp;
+ int publicsw = -1, zerosw = 1, vecp = 0;
+ unsigned int seqp = 0;
+ int lo, hi, msgnum;
+ char *maildir, *folder = NULL, buf[100];
+ char *cp, **argp, **arguments;
+ char *seqs[NUMATTRS + 1], *vec[MAXARGS];
+ struct msgs_array msgs = { 0, 0, NULL };
+ struct msgs *mp;
+ FILE *fp;
+
+ if (atexit(putzero_done) != 0) {
+ adios(EX_OSERR, NULL, "atexit failed");
+ }
+
+ setlocale(LC_ALL, "");
+ invo_name = mhbasename(argv[0]);
+
+ /* read user profile/context */
+ context_read();
+
+ arguments = getarguments(invo_name, argc, argv, 1);
+ argp = arguments;
+
+ while ((cp = *argp++)) {
+ if (*cp == '-') {
+ if (*++cp == '-') {
+ vec[vecp++] = --cp;
+ goto pattern;
+ }
+ switch (smatch(cp, switches)) {
+ case AMBIGSW:
+ ambigsw(cp, switches);
+ listsw = 0; /* HACK */
+ exit(EX_USAGE);
+ case UNKWNSW:
+ adios(EX_USAGE, NULL, "-%s unknown", cp);
+
+ case HELPSW:
+ snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
+ print_help(buf, switches, 1);
+ listsw = 0; /* HACK */
+ exit(argc == 2 ? EX_OK : EX_USAGE);
+ case VERSIONSW:
+ print_version(invo_name);
+ listsw = 0; /* HACK */
+ exit(argc == 2 ? EX_OK : EX_USAGE);
+
+ case CCSW:
+ case DATESW:
+ case FROMSW:
+ case SUBJSW:
+ case TOSW:
+ case DATFDSW:
+ case AFTRSW:
+ case BEFRSW:
+ case SRCHSW:
+ vec[vecp++] = --cp;
+ pattern:
+ if (!(cp = *argp++)) /* allow -xyz arguments */
+ adios(EX_USAGE, NULL, "missing argument to %s",
+ argp[-2]);
+ vec[vecp++] = cp;
+ continue;
+ case OTHRSW:
+ adios(EX_SOFTWARE, NULL, "internal error!");
+
+ case ANDSW:
+ case ORSW:
+ case NOTSW:
+ case LBRSW:
+ case RBRSW:
+ vec[vecp++] = --cp;
+ continue;
+
+ case SEQSW:
+ if (!(cp = *argp++) || *cp == '-')
+ adios(EX_USAGE, NULL, "missing argument to %s",
+ argp[-2]);
+
+ /* check if too many sequences specified */
+ if (seqp >= NUMATTRS)
+ adios(EX_USAGE, NULL, "too many sequences (more than %d) specified", NUMATTRS);
+
+ if (!seq_nameok(cp))
+ exit(EX_USAGE);
+
+ seqs[seqp++] = cp;
+ continue;
+ case PUBLSW:
+ publicsw = 1;
+ continue;
+ case NPUBLSW:
+ publicsw = 0;
+ continue;
+ case ZEROSW:
+ zerosw++;
+ continue;
+ case NZEROSW:
+ zerosw = 0;
+ continue;
+
+ case LISTSW:
+ listsw = 1;
+ continue;
+ case NLISTSW:
+ listsw = 0;
+ continue;
+ }
+ }
+ if (*cp == '+' || *cp == '@') {
+ if (folder)
+ adios(EX_USAGE, NULL, "only one folder at a time!");
+ else
+ folder = mh_xstrdup(expandfol(cp));
+ } else
+ app_msgarg(&msgs, cp);
+ }
+ vec[vecp] = NULL;
+
+ /*
+ ** If we didn't specify which messages to search,
+ ** then search the whole folder.
+ */
+ if (!msgs.size)
+ app_msgarg(&msgs, seq_all);
+
+ if (!folder)
+ folder = getcurfol();
+ maildir = toabsdir(folder);
+
+ if (chdir(maildir) == NOTOK)
+ adios(EX_OSERR, maildir, "unable to change directory to");
+
+ /* read folder and create message structure */
+ if (!(mp = folder_read(folder)))
+ adios(EX_IOERR, NULL, "unable to read folder %s", folder);
+
+ /* check for empty folder */
+ if (mp->nummsg == 0)
+ adios(EX_DATAERR, NULL, "no messages in %s", folder);
+
+ /* parse all the message ranges/sequences and set SELECTED */
+ for (msgnum = 0; msgnum < msgs.size; msgnum++)
+ if (!m_convert(mp, msgs.msgs[msgnum]))
+ exit(EX_USAGE);
+ seq_setprev(mp); /* set the previous-sequence */
+
+ /*
+ ** If we aren't saving the results to a sequence,
+ ** we default to list the results.
+ */
+ if (listsw == -1)
+ listsw = !seqp;
+
+ if (publicsw == 1 && is_readonly(mp))
+ adios(EX_NOPERM, NULL, "folder %s is read-only, so -public not allowed",
+ folder);
+
+ if (!pcompile(vec, NULL))
+ exit(EX_SOFTWARE);
+
+ lo = mp->lowsel;
+ hi = mp->hghsel;
+
+ /*
+ ** If printing message numbers to standard out,
+ ** force line buffering on.
+ */
+ if (listsw)
+ setvbuf(stdout, NULL, _IOLBF, 0);
+
+ /*
+ ** Scan through all the SELECTED messages and check for a
+ ** match. If the message does not match, then unselect it.
+ */
+ for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
+ if (is_selected(mp, msgnum)) {
+ if ((fp = fopen(cp = m_name(msgnum), "r")) == NULL)
+ admonish(cp, "unable to read message");
+ if (fp && pmatches(fp, msgnum, 0L, 0L)) {
+ if (msgnum < lo)
+ lo = msgnum;
+ if (msgnum > hi)
+ hi = msgnum;
+
+ if (listsw)
+ printf("%s\n", m_name(msgnum));
+ } else {
+ /* if it doesn't match, then unselect it */
+ unset_selected(mp, msgnum);
+ }
+ if (fp)
+ fclose(fp);
+ }
+ }
+
+ mp->lowsel = lo;
+ mp->hghsel = hi;
+
+ if (mp->numsel <= 0)
+ adios(EX_DATAERR, NULL, "no messages match specification");
+
+ seqs[seqp] = NULL;
+
+ /*
+ ** Add the matching messages to sequences
+ */
+ for (seqp = 0; seqs[seqp]; seqp++)
+ if (!seq_addsel(mp, seqs[seqp], publicsw, zerosw))
+ exit(EX_USAGE);
+
+ /*
+ ** Print total matched if not printing each matched message number.
+ */
+ if (!listsw) {
+ printf("%d hit%s\n", mp->numsel, mp->numsel == 1 ? "" : "s");
+ }
+
+ context_replace(curfolder, folder); /* update current folder */
+ seq_save(mp); /* synchronize message sequences */
+ context_save(); /* save the context file */
+ folder_free(mp); /* free folder/message structure */
+ listsw = 0; /* HACK */
+ return 0;
+}
+
+
+void
+putzero_done()
+{
+ if (listsw && !isatty(fileno(stdout)))
+ printf("0\n");
+}
+
+
+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];
+static char decoded_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(char *, int);
+static struct tws *tws_special(char *);
+
+/*
+** static prototypes
+*/
+static void PRaction(struct nexus *, int);
+static int gcompile(struct nexus *, char *);
+static int advance(char *, char *);
+static int cclass(unsigned char *, int, int);
+static int tcompile(char *, struct tws *, int);
+
+static struct nexus *parse(void);
+static struct nexus *nexp1(void);
+static struct nexus *nexp2(void);
+static struct nexus *nexp3(void);
+static struct nexus *newnexus(int (*)());
+
+static int ORaction();
+static int ANDaction();
+static int NOTaction();
+static int GREPaction();
+static int TWSaction();
+
+
+static int
+pcompile(char **vec, char *date)
+{
+ 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)
+{
+ char *cp;
+ 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)
+{
+ char *cp;
+ 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)
+{
+ char *cp;
+ 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;
+ char *cp, *dp;
+ char buffer[BUFSIZ], temp[64];
+ 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;
- }
- switch (smatch (cp, switches)) {
- case AMBIGSW:
- ambigsw (cp, switches);
- listsw = 0; /* HACK */
- done (1);
- case UNKWNSW:
- adios (NULL, "-%s unknown", cp);
-
- case HELPSW:
- snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
- invo_name);
- print_help (buf, switches, 1);
- listsw = 0; /* HACK */
- done (1);
- case VERSIONSW:
- print_version(invo_name);
- listsw = 0; /* HACK */
- done (1);
-
- case CCSW:
- case DATESW:
- case FROMSW:
- case SUBJSW:
- case TOSW:
- case DATFDSW:
- case AFTRSW:
- case BEFRSW:
- case SRCHSW:
- vec[vecp++] = --cp;
- pattern:
- if (!(cp = *argp++))/* allow -xyz arguments */
- adios (NULL, "missing argument to %s", argp[-2]);
- vec[vecp++] = cp;
- continue;
- case OTHRSW:
- adios (NULL, "internal error!");
-
- case ANDSW:
- case ORSW:
- case NOTSW:
- case LBRSW:
- case RBRSW:
- vec[vecp++] = --cp;
- continue;
-
- case SEQSW:
- if (!(cp = *argp++) || *cp == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
-
- /* check if too many sequences specified */
- if (seqp >= NUMATTRS)
- adios (NULL, "too many sequences (more than %d) specified", NUMATTRS);
- seqs[seqp++] = cp;
- continue;
- case PUBLSW:
- publicsw = 1;
- continue;
- case NPUBLSW:
- publicsw = 0;
- continue;
- case ZEROSW:
- zerosw++;
- continue;
- case NZEROSW:
- zerosw = 0;
- continue;
-
- case LISTSW:
- listsw = 1;
- continue;
- case NLISTSW:
- listsw = 0;
- continue;
- }
+
+ 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 = mh_xstrdup(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)())
+{
+ struct nexus *p;
+
+ p = mh_xcalloc(1, sizeof *p);
+
+ p->n_action = action;
+ return p;
+}
+
+
+#define args(a) a, fp, msgnum, start, stop
+#define params args(n)
+#define plist \
+ struct nexus *n; \
+ FILE *fp; \
+ int msgnum; \
+ long start, \
+ stop;
+
+static 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)
+{
+ 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 (*cp == '+' || *cp == '@') {
- if (folder)
- adios (NULL, "only one folder at a time!");
- else
- folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
- } else {
- /*
- * Check if we need to allocate more space
- * for message name/ranges/sequences.
- */
- if (nummsgs >= maxmsgs) {
- maxmsgs += MAXMSGS;
- if (!(msgs = (char **) realloc (msgs,
- (size_t) (maxmsgs * sizeof(*msgs)))))
- adios (NULL, "unable to reallocate msgs storage");
- }
- msgs[nummsgs++] = cp;
+ if (n->n_action == GREPaction) {
+ fprintf(stderr, "PATTERN(%s) %s\n",
+ n->n_header ? "header" : "body", n->n_patbuf);
+ return;
}
- }
- vec[vecp] = NULL;
-
- if (!context_find ("path"))
- free (path ("./", TFOLDER));
-
- /*
- * If we didn't specify which messages to search,
- * then search the whole folder.
- */
- if (!nummsgs)
- msgs[nummsgs++] = "all";
-
- if (!folder)
- folder = getfolder (1);
- maildir = m_maildir (folder);
-
- if (chdir (maildir) == NOTOK)
- adios (maildir, "unable to change directory to");
-
- /* read folder and create message structure */
- if (!(mp = folder_read (folder)))
- adios (NULL, "unable to read folder %s", folder);
-
- /* check for empty folder */
- if (mp->nummsg == 0)
- adios (NULL, "no messages in %s", folder);
-
- /* parse all the message ranges/sequences and set SELECTED */
- for (msgnum = 0; msgnum < nummsgs; msgnum++)
- if (!m_convert (mp, msgs[msgnum]))
- done (1);
- seq_setprev (mp); /* set the previous-sequence */
-
- /*
- * If we aren't saving the results to a sequence,
- * we default to list the results.
- */
- if (listsw == -1)
- listsw = !seqp;
-
- if (publicsw == 1 && is_readonly(mp))
- adios (NULL, "folder %s is read-only, so -public not allowed", folder);
-
- if (!pcompile (vec, NULL))
- done (1);
-
- lo = mp->lowsel;
- hi = mp->hghsel;
-
- /*
- * Scan through all the SELECTED messages and check for a
- * match. If the message does not match, then unselect it.
- */
- for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
- if (is_selected (mp, msgnum)) {
- if ((fp = fopen (cp = m_name (msgnum), "r")) == NULL)
- admonish (cp, "unable to read message");
- if (fp && pmatches (fp, msgnum, 0L, 0L)) {
- if (msgnum < lo)
- lo = msgnum;
- if (msgnum > hi)
- hi = msgnum;
- } else {
- /* if it doesn't match, then unselect it */
- unset_selected (mp, msgnum);
- mp->numsel--;
- }
- if (fp)
- fclose (fp);
+ if (n->n_action == TWSaction) {
+ fprintf(stderr, "TEMPORAL(%s) %s: %s\n",
+ n->n_after ? "after" : "before", n->n_datef,
+ dasctime(&n->n_tws));
+ return;
}
- }
-
- mp->lowsel = lo;
- mp->hghsel = hi;
-
- if (mp->numsel <= 0)
- adios (NULL, "no messages match specification");
-
- seqs[seqp] = NULL;
-
- /*
- * Add the matching messages to sequences
- */
- for (seqp = 0; seqs[seqp]; seqp++)
- if (!seq_addsel (mp, seqs[seqp], publicsw, zerosw))
- done (1);
-
- /*
- * Print the name of all the matches
- */
- if (listsw) {
- for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
- if (is_selected (mp, msgnum))
- printf ("%s\n", m_name (msgnum));
- } else {
- printf ("%d hit%s\n", mp->numsel, mp->numsel == 1 ? "" : "s");
- }
-
- context_replace (pfolder, folder); /* update current folder */
- seq_save (mp); /* synchronize message sequences */
- context_save (); /* save the context file */
- folder_free (mp); /* free folder/message structure */
- return done (0);
+ fprintf(stderr, "UNKNOWN(0x%x)\n",
+ (unsigned int)(unsigned long) (*n->n_action));
}
-int
-done (int status)
+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)
+{
+ int c;
+ int cclcnt;
+ 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
{
- if (listsw && status && !isatty (fileno (stdout)))
- printf ("0\n");
- exit (status);
- return 1; /* dead code to satisfy the compiler */
+ int c, body, lf;
+ long pos = start;
+ 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;
+
+ /*
+ ** Attempt to decode as a MIME header. If it's the
+ ** last header, body will be 1 and lf will be at least 1.
+ */
+ if ((body == 0 || lf > 0) && decode_rfc2047(linebuf,
+ decoded_linebuf, sizeof decoded_linebuf)) {
+ p1 = decoded_linebuf;
+ }
+
+ 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)
+{
+ 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)
+{
+ unsigned int n;
+ 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)
+{
+ 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];
+ 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;
+ 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
+{
+ enum state state;
+ struct field f = {{0}};
+ char *bp;
+ struct tws *tw;
+
+ fseek(fp, start, SEEK_SET);
+ for (state = FLD2, bp = NULL;;) {
+ switch (state = m_getfld2(state, &f, fp)) {
+ case LENERR2:
+ state = FLD2;
+ /* FALL */
+
+ case FLD2:
+ if (bp) {
+ mh_free0(&bp);
+ }
+ bp = mh_xstrdup(f.value);
+ if (mh_strcasecmp(f.name, n->n_datef)==0) {
+ break;
+ }
+ continue;
+
+ case FMTERR2:
+ advise(NULL, "format error in message %d", msgnum);
+ state = FLD2;
+ continue;
+
+ case IOERR2:
+ adios(EX_IOERR, "m_getfld2", "io error on message %d", msgnum);
+ /* FALL */
+
+ case BODY2:
+ case FILEEOF2:
+ mh_free0(&bp);
+ return 0;
+
+ default:
+ adios(EX_SOFTWARE, 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)
+ mh_free0(&bp);
+ return state;
}
projects / mmh / blobdiff