-
/*
- * seq_list.c -- Get all messages in a sequence and return them
- * -- as a space separated list of message ranges.
- *
- * $Id$
- *
- * 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.
- */
+** seq_list.c -- Get all messages in a sequence and return them
+** -- as a space separated list of message ranges.
+**
+** 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/utils.h>
char *
seq_list(struct msgs *mp, char *seqname)
{
- int i, j, seqnum;
- char *bp;
-
- /* On first invocation, allocate initial buffer space */
- if (!buffer) {
- len = MAXBUFFER;
- buffer = mh_xmalloc ((size_t) len);
- }
-
- /*
- * Special processing for "cur" sequence. We assume that the
- * "cur" sequence and mp->curmsg are in sync (see seq_add.c).
- * This is returned, even if message doesn't exist or the
- * folder is empty.
- */
- if (!strcmp (current, seqname)) {
- if (mp->curmsg) {
- sprintf(buffer, "%s", m_name(mp->curmsg));
- return (buffer);
- } else
- return (NULL);
- }
-
- /* If the folder is empty, just return NULL */
- if (mp->nummsg == 0)
- return NULL;
-
- /* Get the index of the sequence */
- if ((seqnum = seq_getnum (mp, seqname)) == -1)
- return NULL;
-
- bp = buffer;
-
- for (i = mp->lowmsg; i <= mp->hghmsg; ++i) {
- /*
- * If message doesn't exist, or isn't in
- * the sequence, then continue.
- */
- if (!does_exist(mp, i) || !in_sequence(mp, seqnum, i))
- continue;
+ int i, j, seqnum;
+ char *bp;
- /*
- * See if we need to enlarge buffer. Since we don't know
- * exactly how many character this particular message range
- * will need, we enlarge the buffer if we are within
- * 50 characters of the end.
- */
- if (bp - buffer > len - 50) {
- char *newbuf;
-
- len += MAXBUFFER;
- newbuf = mh_xrealloc (buffer, (size_t) len);
- bp = newbuf + (bp - buffer);
- buffer = newbuf;
+ /* On first invocation, allocate initial buffer space */
+ if (!buffer) {
+ len = MAXBUFFER;
+ buffer = mh_xcalloc(len, sizeof(char));
}
/*
- * If this is not the first message range in
- * the list, first add a space.
- */
- if (bp > buffer)
- *bp++ = ' ';
-
- sprintf(bp, "%s", m_name(i));
- bp += strlen(bp);
- j = i; /* Remember beginning of message range */
+ ** Special processing for the cur sequence. We assume that the
+ ** cur sequence and mp->curmsg are in sync (see seq_add.c).
+ ** This is returned, even if message doesn't exist or the
+ ** folder is empty.
+ */
+ if (strcmp(seq_cur, seqname)==0) {
+ if (mp->curmsg) {
+ sprintf(buffer, "%s", m_name(mp->curmsg));
+ return (buffer);
+ } else
+ return (NULL);
+ }
- /*
- * Scan to the end of this message range
- */
- for (++i; i <= mp->hghmsg && does_exist(mp, i) && in_sequence(mp, seqnum, i);
- ++i)
- ;
-
- if (i - j > 1) {
- sprintf(bp, "-%s", m_name(i - 1));
- bp += strlen(bp);
+ /* If the folder is empty, just return NULL */
+ if (mp->nummsg == 0)
+ return NULL;
+
+ /* Get the index of the sequence */
+ if ((seqnum = seq_getnum(mp, seqname)) == -1)
+ return NULL;
+
+ bp = buffer;
+
+ for (i = mp->lowmsg; i <= mp->hghmsg; ++i) {
+ /*
+ ** If message doesn't exist, or isn't in
+ ** the sequence, then continue.
+ */
+ if (!does_exist(mp, i) || !in_sequence(mp, seqnum, i))
+ continue;
+
+ /*
+ ** See if we need to enlarge buffer. Since we don't know
+ ** exactly how many character this particular message range
+ ** will need, we enlarge the buffer if we are within
+ ** 50 characters of the end.
+ */
+ if (bp - buffer > len - 50) {
+ char *newbuf;
+
+ len += MAXBUFFER;
+ newbuf = mh_xrealloc(buffer, len);
+ bp = newbuf + (bp - buffer);
+ buffer = newbuf;
+ }
+
+ /*
+ ** If this is not the first message range in
+ ** the list, first add a space.
+ */
+ if (bp > buffer)
+ *bp++ = ' ';
+
+ sprintf(bp, "%s", m_name(i));
+ bp += strlen(bp);
+ j = i; /* Remember beginning of message range */
+
+ /*
+ ** Scan to the end of this message range
+ */
+ for (++i; i <= mp->hghmsg && does_exist(mp, i) &&
+ in_sequence(mp, seqnum, i); ++i)
+ ;
+
+ if (i - j > 1) {
+ sprintf(bp, "-%s", m_name(i - 1));
+ bp += strlen(bp);
+ }
}
- }
- return (bp > buffer? buffer : NULL);
+ return (bp > buffer? buffer : NULL);
}
projects / mmh / blobdiff