diplodocus.org Git - nmh/blob - uip/anno.c

   1
   2 /*
   3  * anno.c -- annotate messages
   4  *
   5  * $Id$
   6  *
   7  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  *
  11  *      Four new options have been added: delete, list, number, and draft.
  12  *      Message header fields are used by the new MIME attachment code in
  13  *      the send command.  Adding features to generalize the anno command
  14  *      seemed to be a better approach than the creation of a new command
  15  *      whose features would overlap with those of the anno command.
  16  *
  17  *      The -draft option causes anno to operate on the current draft file
  18  *      instead of on a message sequence.
  19  *
  20  *      The -delete option deletes header elements that match the -component
  21  *      field name.  If -delete is used without the -text option, the first
  22  *      header field whose field name matches the component name is deleted.
  23  *      If the -delete is used with the -text option, and the -text argument
  24  *      begins with a /, the first header field whose field name matches the
  25  *      component name and whose field body matches the text is deleted.  If
  26  *      the -text argument does not begin with a /, then the text is assumed
  27  *      to be the last component of a path name, and the first header field
  28  *      whose field name matches the component name and a field body whose
  29  *      last path name component matches the text is deleted.  If the -delete
  30  *      option is used with the new -number option described below, the nth
  31  *      header field whose field name matches the component name is deleted.
  32  *      No header fields are deleted if none of the above conditions are met.
  33  *
  34  *      The -list option outputs the field bodies from each header field whose
  35  *      field name matches the component name, one per line.  If no -text
  36  *      option is specified, only the last path name component of each field
  37  *      body is output.  The entire field body is output if the -text option
  38  *      is used; the contents of the -text argument are ignored.  If the -list
  39  *      option is used in conjuction with the new -number option described
  40  *      below, each line is numbered starting with 1.  A tab separates the
  41  *      number from the field body.
  42  *
  43  *      The -number option works with both the -delete and -list options as
  44  *      described above.  The -number option takes an optional argument.  A
  45  *      value of 1 is assumed if this argument is absent.
  46  */
  47
  48 #include <h/mh.h>
  49
  50 /*
  51  * We allocate space for messages (msgs array)
  52  * this number of elements at a time.
  53  */
  54 #define MAXMSGS  256
  55
  56
  57 static struct swit switches[] = {
  58 #define COMPSW  0
  59     { "component field", 0 },
  60 #define INPLSW  1
  61     { "inplace", 0 },
  62 #define NINPLSW 2
  63     { "noinplace", 0 },
  64 #define DATESW  3
  65     { "date", 0 },
  66 #define NDATESW 4
  67     { "nodate", 0 },
  68 #define TEXTSW  5
  69     { "text body", 0 },
  70 #define VERSIONSW 6
  71     { "version", 0 },
  72 #define HELPSW  7
  73     { "help", 0 },
  74 #define DRFTSW                   8
  75     { "draft", 2 },
  76 #define LISTSW                   9
  77     { "list", 1 },
  78 #define DELETESW                10
  79     { "delete", 2 },
  80 #define NUMBERSW                11
  81     { "number", 2 },
  82 #define APPENDSW                12
  83     { "append", 1 },
  84     { NULL, 0 }
  85 };
  86
  87 /*
  88  * static prototypes
  89  */
  90 static void make_comp (char **);
  91
  92
  93 int
  94 main (int argc, char **argv)
  95 {
  96     int inplace = 1, datesw = 1;
  97     int nummsgs, maxmsgs, msgnum;
  98     char *cp, *maildir, *comp = NULL;
  99     char *text = NULL, *folder = NULL, buf[BUFSIZ];
 100     char **argp, **arguments, **msgs;
 101     struct msgs *mp;
 102     int         append = 0;             /* append annotations instead of default prepend */
 103     int         delete = -1;            /* delete header element if set */
 104     char        *draft = (char *)0;     /* draft file name */
 105     int         isdf = 0;               /* return needed for m_draft() */
 106     int         list = 0;               /* list header elements if set */
 107     int         number = 0;             /* delete specific number of like elements if set */
 108
 109 #ifdef LOCALE
 110     setlocale(LC_ALL, "");
 111 #endif
 112     invo_name = r1bindex (argv[0], '/');
 113
 114     /* read user profile/context */
 115     context_read();
 116
 117     arguments = getarguments (invo_name, argc, argv, 1);
 118     argp = arguments;
 119
 120     /*
 121      * Allocate the initial space to record message
 122      * names and ranges.
 123      */
 124     nummsgs = 0;
 125     maxmsgs = MAXMSGS;
 126     if (!(msgs = (char **) malloc ((size_t) (maxmsgs * sizeof(*msgs)))))
 127         adios (NULL, "unable to allocate storage");
 128
 129     while ((cp = *argp++)) {
 130         if (*cp == '-') {
 131             switch (smatch (++cp, switches)) {
 132                 case AMBIGSW:
 133                     ambigsw (cp, switches);
 134                     done (1);
 135                 case UNKWNSW:
 136                     adios (NULL, "-%s unknown", cp);
 137
 138                 case HELPSW:
 139                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 140                         invo_name);
 141                     print_help (buf, switches, 1);
 142                     done (1);
 143                 case VERSIONSW:
 144                     print_version(invo_name);
 145                     done (1);
 146
 147                 case COMPSW:
 148                     if (comp)
 149                         adios (NULL, "only one component at a time!");
 150                     if (!(comp = *argp++) || *comp == '-')
 151                         adios (NULL, "missing argument to %s", argp[-2]);
 152                     continue;
 153
 154                 case DATESW:
 155                     datesw++;
 156                     continue;
 157                 case NDATESW:
 158                     datesw = 0;
 159                     continue;
 160
 161                 case INPLSW:
 162                     inplace++;
 163                     continue;
 164                 case NINPLSW:
 165                     inplace = 0;
 166                     continue;
 167
 168                 case TEXTSW:
 169                     if (text)
 170                         adios (NULL, "only one body at a time!");
 171                     if (!(text = *argp++) || *text == '-')
 172                         adios (NULL, "missing argument to %s", argp[-2]);
 173                     continue;
 174
 175                 case DELETESW:          /* delete annotations */
 176                     delete = 0;
 177                     continue;
 178
 179                 case DRFTSW:            /* draft message specified */
 180                     draft = "";
 181                     continue;
 182
 183                 case LISTSW:            /* produce a listing */
 184                     list = 1;
 185                     continue;
 186
 187                 case NUMBERSW:          /* number listing or delete by number */
 188                     if (number != 0)
 189                         adios (NULL, "only one number at a time!");
 190
 191                     if (argp - arguments == argc - 1 || **argp == '-')
 192                         number = 1;
 193
 194                     else if (!(number = atoi(*argp++)))
 195                         adios (NULL, "missing argument to %s", argp[-2]);
 196
 197                     delete = number;
 198                     continue;
 199
 200                 case APPENDSW:          /* append annotations instead of default prepend */
 201                     append = 1;
 202                     continue;
 203             }
 204         }
 205         if (*cp == '+' || *cp == '@') {
 206             if (folder)
 207                 adios (NULL, "only one folder at a time!");
 208             else
 209                 folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
 210         } else {
 211             /*
 212              * Check if we need to allocate more space
 213              * for message name/ranges.
 214              */
 215             if (nummsgs >= maxmsgs) {
 216                 maxmsgs += MAXMSGS;
 217                 if (!(msgs = (char **) realloc (msgs,
 218                         (size_t) (maxmsgs * sizeof(*msgs)))))
 219                     adios (NULL, "unable to reallocate msgs storage");
 220             }
 221             msgs[nummsgs++] = cp;
 222         }
 223     }
 224
 225     /*
 226      *  We're dealing with the draft message instead of message numbers.
 227      *  Get the name of the draft and deal with it just as we do with
 228      *  message numbers below.
 229      */
 230
 231     if (draft != (char *)0) {
 232         if (nummsgs != 0)
 233             adios(NULL, "can only have message numbers or -draft.");
 234
 235         draft = getcpy(m_draft(folder, (char *)0, 1, &isdf));
 236
 237         make_comp(&comp);
 238
 239         if (list)
 240             annolist(draft, comp, text, number);
 241         else
 242             annotate (draft, comp, text, inplace, datesw, delete, append);
 243
 244         return (done(0));
 245     }
 246
 247 #ifdef UCI
 248     if (strcmp(invo_name, "fanno") == 0)        /* ugh! */
 249         datesw = 0;
 250 #endif  /* UCI */
 251
 252     if (!context_find ("path"))
 253         free (path ("./", TFOLDER));
 254     if (!nummsgs)
 255         msgs[nummsgs++] = "cur";
 256     if (!folder)
 257         folder = getfolder (1);
 258     maildir = m_maildir (folder);
 259
 260     if (chdir (maildir) == NOTOK)
 261         adios (maildir, "unable to change directory to");
 262
 263     /* read folder and create message structure */
 264     if (!(mp = folder_read (folder)))
 265         adios (NULL, "unable to read folder %s", folder);
 266
 267     /* check for empty folder */
 268     if (mp->nummsg == 0)
 269         adios (NULL, "no messages in %s", folder);
 270
 271     /* parse all the message ranges/sequences and set SELECTED */
 272     for (msgnum = 0; msgnum < nummsgs; msgnum++)
 273         if (!m_convert (mp, msgs[msgnum]))
 274             done (1);
 275
 276     make_comp (&comp);
 277
 278     /* annotate all the SELECTED messages */
 279     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 280         if (is_selected(mp, msgnum)) {
 281             if (list)
 282                 annolist(m_name(msgnum), comp, text, number);
 283             else
 284                 annotate (m_name (msgnum), comp, text, inplace, datesw, delete, append);
 285         }
 286     }
 287
 288     context_replace (pfolder, folder);  /* update current folder  */
 289     seq_setcur (mp, mp->lowsel);        /* update current message */
 290     seq_save (mp);      /* synchronize message sequences */
 291     folder_free (mp);   /* free folder/message structure */
 292     context_save ();    /* save the context file         */
 293     return done (0);
 294 }
 295
 296 static void
 297 make_comp (char **ap)
 298 {
 299     register char *cp;
 300     char buffer[BUFSIZ];
 301
 302     if (*ap == NULL) {
 303         printf ("Enter component name: ");
 304         fflush (stdout);
 305
 306         if (fgets (buffer, sizeof buffer, stdin) == NULL)
 307             done (1);
 308         *ap = trimcpy (buffer);
 309     }
 310
 311     if ((cp = *ap + strlen (*ap) - 1) > *ap && *cp == ':')
 312         *cp = 0;
 313     if (strlen (*ap) == 0)
 314         adios (NULL, "null component name");
 315     if (**ap == '-')
 316         adios (NULL, "invalid component name %s", *ap);
 317     if (strlen (*ap) >= NAMESZ)
 318         adios (NULL, "too large component name %s", *ap);
 319
 320     for (cp = *ap; *cp; cp++)
 321         if (!isalnum (*cp) && *cp != '-')
 322             adios (NULL, "invalid component name %s", *ap);
 323 }