if( zOlderButton ){
    @ %z(chref("button","%s",zOlderButton))%h(zOlderButtonLabel)\
    @ &nbsp;&darr;</a>
  }
  document_emit_js(/*handles pikchrs rendered above*/);
  style_finish_page();
}

/*
** Translate a timeline entry into the printable format by
** converting every %-substitutions as follows:
**
**     %n  newline
**     %%  a raw %
**     %H  commit hash
**     %h  abbreviated commit hash
**     %a  author name
**     %d  date
**     %c  comment (\n, \t replaced by space, \r deleted)
**     %b  branch
**     %t  tags
**     %p  phase (zero or more of: *CURRENT*, *MERGE*, *FORK*,
**                                 *UNPUBLISHED*, *LEAF*, *BRANCH*)
**
** The returned string is obtained from fossil_malloc() and should
** be freed by the caller.
*/
static char *timeline_entry_subst(
  const char *zFormat,
  int *nLine,
  const char *zId,
  const char *zDate,
  const char *zUser,
  const char *zCom,
  const char *zBranch,
  const char *zTags,
  const char *zPhase
){
  Blob r, co;
  int i, j;
  blob_init(&r, 0, 0);
  blob_init(&co, 0, 0);

  /* Replace LF and tab with space, delete CR */
  while( zCom[0] ){
    for(j=0; zCom[j] && zCom[j]!='\r' && zCom[j]!='\n' && zCom[j]!='\t'; j++){}
    blob_append(&co, zCom, j);
    if( zCom[j]==0 ) break;
    if( zCom[j]!='\r')
      blob_append(&co, " ", 1);
    zCom += j+1;
  }
  blob_str(&co);

  *nLine = 1;
  while( zFormat[0] ){
    for(i=0; zFormat[i] && zFormat[i]!='%'; i++){}
    blob_append(&r, zFormat, i);
    if( zFormat[i]==0 ) break;
    if( zFormat[i+1]=='%' ){
      blob_append(&r, "%", 1);
      zFormat += i+2;
    }else if( zFormat[i+1]=='n' ){
      blob_append(&r, "\n", 1);
      *nLine += 1;
      zFormat += i+2;
    }else if( zFormat[i+1]=='H' ){
      blob_append(&r, zId, -1);
      zFormat += i+2;
    }else if( zFormat[i+1]=='h' ){
      char *zFree = 0;
      zFree = mprintf("%S", zId);
      blob_append(&r, zFree, -1);
      fossil_free(zFree);
      zFormat += i+2;
    }else if( zFormat[i+1]=='d' ){
      blob_append(&r, zDate, -1);
      zFormat += i+2;
    }else if( zFormat[i+1]=='a' ){
      blob_append(&r, zUser, -1);
      zFormat += i+2;
    }else if( zFormat[i+1]=='c' ){
      blob_append(&r, co.aData, -1);
      zFormat += i+2;
    }else if( zFormat[i+1]=='b' ){
      if( zBranch ) blob_append(&r, zBranch, -1);
      zFormat += i+2;
    }else if( zFormat[i+1]=='t' ){
      blob_append(&r, zTags, -1);
      zFormat += i+2;
    }else if( zFormat[i+1]=='p' ){
      blob_append(&r, zPhase, -1);
      zFormat += i+2;
    }else{
      blob_append(&r, zFormat+i, 1);
      zFormat += i+1;
    }
  }
  fossil_free(co.aData);
  blob_str(&r);
  return r.aData;
}

/*
** The input query q selects various records.  Print a human-readable
** summary of those records.
**
** Limit number of lines or entries printed to nLimit.  If nLimit is zero
** there is no limit.  If nLimit is greater than zero, limit the number of
** complete entries printed.  If nLimit is less than zero, attempt to limit
** the number of lines printed (this is basically the legacy behavior).
** The line limit, if used, is approximate because it is only checked on a
** per-entry basis.  If verbose mode, the file name details are considered
** to be part of the entry.
**
** The query should return these columns:
**
**    0.  rid
**    1.  uuid
**    2.  Date/Time
**    3.  Comment string, user, and tags
**    4.  Number of non-merge children
**    5.  Number of parents
**    6.  mtime
**    7.  branch
**    8.  event-type: 'ci', 'w', 't', 'f', and so forth.
**    9.  comment
**   10.  user
**   11.  tags
*/
void print_timeline(Stmt *q, int nLimit, int width, const char *zFormat, int verboseFlag){
  int nAbsLimit = (nLimit >= 0) ? nLimit : -nLimit;
  int nLine = 0;
  int nEntry = 0;
  char zPrevDate[20];
  const char *zCurrentUuid = 0;
  int fchngQueryInit = 0;     /* True if fchngQuery is initialized */
  Stmt fchngQuery;            /* Query for file changes on check-ins */

  while( (rc=db_step(q))==SQLITE_ROW ){
    int rid = db_column_int(q, 0);
    const char *zId = db_column_text(q, 1);
    const char *zDate = db_column_text(q, 2);
    const char *zCom = db_column_text(q, 3);
    int nChild = db_column_int(q, 4);
    int nParent = db_column_int(q, 5);
    const char *zBranch = db_column_text(q, 7);
    const char *zType = db_column_text(q, 8);
    const char *zComShort = db_column_text(q, 9);
    const char *zUserShort = db_column_text(q, 10);
    const char *zTags = db_column_text(q, 11);
    char *zFree = 0;
    int n = 0;
    char zPrefix[80];

    if( nAbsLimit!=0 ){
      if( nLimit<0 && nLine>=nAbsLimit ){
        fossil_print("--- line limit (%d) reached ---\n", nAbsLimit);
        break; /* line count limit hit, stop. */
      }else if( nEntry>=nAbsLimit ){
        fossil_print("--- entry limit (%d) reached ---\n", nAbsLimit);
        break; /* entry count limit hit, stop. */
      }
    }
    if( zFormat == 0 && fossil_strnicmp(zDate, zPrevDate, 10) ){
      fossil_print("=== %.10s ===\n", zDate);
      memcpy(zPrevDate, zDate, 10);
      nLine++; /* record another line */
    }
    if( zCom==0 ) zCom = "";
    if( zFormat == 0 )
      fossil_print("%.8s ", &zDate[11]);
    zPrefix[0] = 0;
    if( nParent>1 ){
      sqlite3_snprintf(sizeof(zPrefix), zPrefix, "*MERGE* ");
      n = strlen(zPrefix);
    }
    if( nChild>1 ){
      const char *zBrType;

        zFree = mprintf("[%S] Delete wiki page \"%s\"", zId, zCom+1);
      }else{
        zFree = mprintf("[%S] Edit to wiki page \"%s\"", zId, zCom+1);
      }
    }else{
      zFree = mprintf("[%S] %s%s", zId, zPrefix, zCom);
    }

    if( zFormat ){
      if( nChild==0 ){
        sqlite3_snprintf(sizeof(zPrefix)-n, &zPrefix[n], "*LEAF* ");
      }
      char *zEntry;
      int nEntryLine = 0;
      zEntry = timeline_entry_subst(zFormat, &nEntryLine, zId, zDate, zUserShort,
                                    zComShort, zBranch, zTags, zPrefix);
      nLine += nEntryLine;
      fossil_print("%s\n", zEntry);
      fossil_free(zEntry);
    }
    else{
      /* record another X lines */
      nLine += comment_print(zFree, zCom, 9, width, get_comment_format());
    }
    fossil_free(zFree);

    if(verboseFlag){
      if( !fchngQueryInit ){
        db_prepare(&fchngQuery,
           "SELECT (pid<=0) AS isnew,"
           "       (fid==0) AS isdel,"

        }else{
          fossil_print("   EDITED %s\n", zFilename);
        }
        nLine++; /* record another line */
      }
      db_reset(&fchngQuery);
    }
    /* Except for "oneline", separate formatted entries by one empty line */
    if( zFormat && fossil_strcmp(zFormat, "%h %c")!=0 )
      fossil_print("\n");
    nEntry++; /* record another complete entry */
  }
  if( rc==SQLITE_DONE ){
    /* Did the underlying query actually have all entries? */
    if( nAbsLimit==0 ){
      fossil_print("+++ end of timeline (%d) +++\n", nEntry);
    }else{

    @     || ')' as comment,
    @   (SELECT count(*) FROM plink WHERE pid=blob.rid AND isprim)
    @        AS primPlinkCount,
    @   (SELECT count(*) FROM plink WHERE cid=blob.rid) AS plinkCount,
    @   event.mtime AS mtime,
    @   tagxref.value AS branch,
    @   event.type
    @   , coalesce(ecomment,comment) AS comment0
    @   , coalesce(euser,user,'?') AS user0
    @   , (SELECT case when length(x)>0 then x else '' end
    @         FROM (SELECT group_concat(substr(tagname,5), ', ') AS x
    @         FROM tag, tagxref
    @         WHERE tagname GLOB 'sym-*' AND tag.tagid=tagxref.tagid
    @          AND tagxref.rid=blob.rid AND tagxref.tagtype>0)) AS tags    
    @ FROM tag CROSS JOIN event CROSS JOIN blob
    @      LEFT JOIN tagxref ON tagxref.tagid=tag.tagid
    @   AND tagxref.tagtype>0
    @   AND tagxref.rid=blob.rid
    @ WHERE blob.rid=event.objid
    @   AND tag.tagname='branch'
  ;

/*
** Return true if the input string can be converted to a julianday.
*/
static int fossil_is_julianday(const char *zDate){
  return db_int(0, "SELECT EXISTS (SELECT julianday(%Q) AS jd"
                   " WHERE jd IS NOT NULL)", zDate);
}


/*
** COMMAND: timeline
**
** Usage: %fossil timeline ?WHEN? ?CHECKIN|DATETIME? ?OPTIONS?
**
** Print a summary of activity going backwards in date and time

**   -v|--verbose         Output the list of files changed by each commit
**                        and the type of each change (edited, deleted,
**                        etc.) after the check-in comment.
**   -W|--width N         Width of lines (default is to auto-detect). N must be
**                        either greater than 20 or it ust be zero 0 to
**                        indicate no limit, resulting in a single line per
**                        entry.
**   -F|--format          Entry format. Values "oneline", "medium", and "full"
**                        get mapped to the full options below. Otherwise a 
**                        string which can contain these placeholders:
**                            %n  newline
**                            %%  a raw %
**                            %H  commit hash
**                            %h  abbreviated commit hash
**                            %a  author name
**                            %d  date
**                            %c  comment (NL, TAB replaced by space, LF deleted)
**                            %b  branch
**                            %t  tags
**                            %p  phase: zero or more of *CURRENT*, *MERGE*,
**                                      *FORK*, *UNPUBLISHED*, *LEAF*, *BRANCH*
**   --oneline            Show only short hash and comment for each entry
**   --medium             Medium-verbose entry formatting
**   --full               Extra verbose entry formatting
**   -R REPO_FILE         Specifies the repository db to use. Default is
**                        the current checkout's repository.
*/
void timeline_cmd(void){
  Stmt q;
  int n, k, width;
  const char *zLimit;
  const char *zWidth;
  const char *zOffset;
  const char *zType;
  char *zOrigin;
  char *zDate;
  Blob sql;
  int objid = 0;
  Blob uuid;
  int mode = TIMELINE_MODE_NONE;
  int verboseFlag = 0 ;
  int iOffset;
  const char *zFilePattern = 0;
  const char *zFormat = 0;
  Blob treeName;
  int showSql = 0;

  verboseFlag = find_option("verbose","v", 0)!=0;
  if( !verboseFlag){
    verboseFlag = find_option("showfiles","f", 0)!=0; /* deprecated */
  }
  db_find_and_open_repository(0, 0);
  zLimit = find_option("limit","n",1);
  zWidth = find_option("width","W",1);
  zType = find_option("type","t",1);
  zFilePattern = find_option("path","p",1);
  zFormat = find_option("format","F",1);
  if( find_option("oneline",0,0)!= 0 || fossil_strcmp(zFormat,"oneline")==0 )
    zFormat = "%h %c";
  if( find_option("medium",0,0)!= 0 || fossil_strcmp(zFormat,"medium")==0 )
    zFormat = "Commit:   %h%nDate:     %d%nAuthor:   %a%nComment:  %c";
  if( find_option("full",0,0)!= 0 || fossil_strcmp(zFormat,"full")==0 )
    zFormat = "Commit:   %H%nDate:     %d%nAuthor:   %a%nComment:  %c%nBranch:   %b%nTags:     %t%nPrefix:   %p";
  showSql = find_option("sql",0,0)!=0;

  if( !zLimit ){
    zLimit = find_option("count",0,1);
  }
  if( zLimit ){
    n = atoi(zLimit);

    blob_append_sql(&sql, "\n LIMIT -1 OFFSET %d", iOffset);
  }
  if( showSql ){
    fossil_print("%s\n", blob_str(&sql));
  }
  db_prepare_blob(&q, &sql);
  blob_reset(&sql);
  print_timeline(&q, n, width, zFormat, verboseFlag);
  db_finalize(&q);
}

/*
** WEBPAGE: thisdayinhistory
**
** Generate a vanity page that shows project activity for the current