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 <h/utils.h>
  46 #include "h/done.h"
  47 #include "sbr/m_maildir.h"
  48
  49 #define ANNO_SWITCHES \
  50     X("component field", 0, COMPSW) \
  51     X("inplace", 0, INPLSW) \
  52     X("noinplace", 0, NINPLSW) \
  53     X("date", 0, DATESW) \
  54     X("nodate", 0, NDATESW) \
  55     X("text body", 0, TEXTSW) \
  56     X("version", 0, VERSIONSW) \
  57     X("help", 0, HELPSW) \
  58     X("draft", 2, DRFTSW) \
  59     X("list", 1, LISTSW) \
  60     X("delete", 2, DELETESW) \
  61     X("number", 2, NUMBERSW) \
  62     X("append", 1, APPENDSW) \
  63     X("preserve", 1, PRESERVESW) \
  64     X("nopreserve", 3, NOPRESERVESW) \
  65
  66 #define X(sw, minchars, id) id,
  67 DEFINE_SWITCH_ENUM(ANNO);
  68 #undef X
  69
  70 #define X(sw, minchars, id) { sw, minchars, id },
  71 DEFINE_SWITCH_ARRAY(ANNO, switches);
  72 #undef X
  73
  74 /*
  75  * static prototypes
  76  */
  77 static void make_comp (char **);
  78
  79
  80 int
  81 main (int argc, char **argv)
  82 {
  83     bool inplace, datesw;
  84     int msgnum;
  85     char *cp, *maildir;
  86     char *comp = NULL, *text = NULL, *folder = NULL, buf[BUFSIZ];
  87     char **argp, **arguments;
  88     struct msgs_array msgs = { 0, 0, NULL };
  89     struct msgs *mp;
  90     bool        append;                 /* append annotations instead of default prepend */
  91     int         delete = -2;            /* delete header element if set */
  92     char        *draft = NULL;  /* draft file name */
  93     int         isdf = 0;               /* return needed for m_draft() */
  94     bool        list;                   /* list header elements if set */
  95     int         number = 0;             /* delete specific number of like elements if set */
  96
  97     if (nmh_init(argv[0], true, true)) { return 1; }
  98
  99     arguments = getarguments (invo_name, argc, argv, 1);
 100     argp = arguments;
 101
 102     append = list = false;
 103     inplace = datesw = true;
 104     while ((cp = *argp++)) {
 105         if (*cp == '-') {
 106             switch (smatch (++cp, switches)) {
 107                 case AMBIGSW:
 108                     ambigsw (cp, switches);
 109                     done (1);
 110                 case UNKWNSW:
 111                     die("-%s unknown", cp);
 112
 113                 case HELPSW:
 114                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 115                         invo_name);
 116                     print_help (buf, switches, 1);
 117                     done (0);
 118                 case VERSIONSW:
 119                     print_version(invo_name);
 120                     done (0);
 121
 122                 case COMPSW:
 123                     if (comp)
 124                         die("only one component at a time!");
 125                     if (!(comp = *argp++) || *comp == '-')
 126                         die("missing argument to %s", argp[-2]);
 127                     continue;
 128
 129                 case DATESW:
 130                     datesw = true;
 131                     continue;
 132                 case NDATESW:
 133                     datesw = false;
 134                     continue;
 135
 136                 case INPLSW:
 137                     inplace = true;
 138                     continue;
 139                 case NINPLSW:
 140                     inplace = false;
 141                     continue;
 142
 143                 case TEXTSW:
 144                     if (text)
 145                         die("only one body at a time!");
 146                     if (!(text = *argp++) || *text == '-')
 147                         die("missing argument to %s", argp[-2]);
 148                     continue;
 149
 150                 case DELETESW:          /* delete annotations */
 151                     delete = 0;
 152                     continue;
 153
 154                 case DRFTSW:            /* draft message specified */
 155                     draft = "";
 156                     continue;
 157
 158                 case LISTSW:            /* produce a listing */
 159                     list = true;
 160                     continue;
 161
 162                 case NUMBERSW:          /* number listing or delete by number */
 163                     if (number != 0)
 164                         die("only one number at a time!");
 165
 166                     if (argp - arguments == argc - 1 || **argp == '-')
 167                         number = 1;
 168
 169                     else {
 170                         if (strcmp(*argp, "all") == 0)
 171                             number = -1;
 172
 173                         else if (!(number = atoi(*argp)))
 174                             die("missing argument to %s", argp[-1]);
 175
 176                         argp++;
 177                     }
 178
 179                     delete = number;
 180                     continue;
 181
 182                 case APPENDSW:          /* append annotations instead of default prepend */
 183                     append = true;
 184                     continue;
 185
 186                 case PRESERVESW:        /* preserve access and modification times on annotated message */
 187                     annopreserve(1);
 188                     continue;
 189
 190                 case NOPRESERVESW:      /* don't preserve access and modification times on annotated message (default) */
 191                     annopreserve(0);
 192                     continue;
 193             }
 194         }
 195         if (*cp == '+' || *cp == '@') {
 196             if (folder)
 197                 die("only one folder at a time!");
 198             folder = pluspath (cp);
 199         } else
 200                 app_msgarg(&msgs, cp);
 201     }
 202
 203     /*
 204      *  We're dealing with the draft message instead of message numbers.
 205      *  Get the name of the draft and deal with it just as we do with
 206      *  message numbers below.
 207      */
 208
 209     if (draft != NULL) {
 210         if (msgs.size != 0)
 211             die("can only have message numbers or -draft.");
 212
 213         draft = mh_xstrdup(m_draft(folder, NULL, 1, &isdf));
 214
 215         make_comp(&comp);
 216
 217         if (list)
 218             annolist(draft, comp, text, number);
 219         else
 220             annotate (draft, comp, text, inplace, datesw, delete, append);
 221
 222         done(0);
 223         return 1;
 224     }
 225
 226     if (!context_find ("path"))
 227         free (path ("./", TFOLDER));
 228     if (!msgs.size)
 229         app_msgarg(&msgs, "cur");
 230     if (!folder)
 231         folder = getfolder (1);
 232     maildir = m_maildir (folder);
 233
 234     if (chdir (maildir) == NOTOK)
 235         adios (maildir, "unable to change directory to");
 236
 237     /* read folder and create message structure */
 238     if (!(mp = folder_read (folder, 1)))
 239         die("unable to read folder %s", folder);
 240
 241     /* check for empty folder */
 242     if (mp->nummsg == 0)
 243         die("no messages in %s", folder);
 244
 245     /* parse all the message ranges/sequences and set SELECTED */
 246     for (msgnum = 0; msgnum < msgs.size; msgnum++)
 247         if (!m_convert (mp, msgs.msgs[msgnum]))
 248             done (1);
 249
 250     make_comp (&comp);
 251
 252     /* annotate all the SELECTED messages */
 253     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 254         if (is_selected(mp, msgnum)) {
 255             if (list)
 256                 annolist(m_name(msgnum), comp, text, number);
 257             else
 258                 annotate (m_name (msgnum), comp, text, inplace, datesw, delete, append);
 259         }
 260     }
 261
 262     context_replace (pfolder, folder);  /* update current folder  */
 263     seq_setcur (mp, mp->lowsel);        /* update current message */
 264     seq_save (mp);      /* synchronize message sequences */
 265     folder_free (mp);   /* free folder/message structure */
 266     context_save ();    /* save the context file         */
 267     done (0);
 268     return 1;
 269 }
 270
 271 static void
 272 make_comp (char **ap)
 273 {
 274     char *cp, buffer[BUFSIZ];
 275
 276     if (*ap == NULL) {
 277         fputs("Enter component name: ", stdout);
 278         fflush (stdout);
 279
 280         if (fgets (buffer, sizeof buffer, stdin) == NULL)
 281             done (1);
 282         *ap = trimcpy (buffer);
 283     }
 284
 285     if ((cp = *ap + strlen (*ap) - 1) > *ap && *cp == ':')
 286         *cp = 0;
 287     if (!**ap)
 288         die("null component name");
 289     if (**ap == '-')
 290         die("invalid component name %s", *ap);
 291     if (strlen (*ap) >= NAMESZ)
 292         die("too large component name %s", *ap);
 293
 294     for (cp = *ap; *cp; cp++)
 295         if (!isalnum ((unsigned char) *cp) && *cp != '-')
 296             die("invalid component name %s", *ap);
 297 }