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

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