Source Code 1994 March/Source_Code_CD-ROM_Walnut_Creek_March_1994.iso/compsrcs/misc/volume33/remind/part02

Text File | 1992-11-10 | 39.0 KB | 1,390 lines

Newsgroups: comp.sources.misc
From: [e-mail] (David F. Skoll)
Subject:  v33i059:  remind - A replacement for calendar, Part02/12
Message-ID: <[e-mail]>
X-Md4-Signature: 7ddd6efa3b103bcd631ef0008cc9a0eb
Date: Tue, 10 Nov 1992 04:18:22 GMT
Approved: [e-mail]

Submitted-by: [e-mail] (David F. Skoll)
Posting-number: Volume 33, Issue 59
Archive-name: remind/part02
Environment: UNIX, MS-DOS
Supersedes: remind: Volume 17, Issue 3-6

#!/bin/sh
# This is part 02 of Remind 03.00.00
if touch 2>&1 | fgrep 'amc' > /dev/null
 then TOUCH=touch
 else TOUCH=true
fi
# ============= calendar.c ==============
if test X"$1" != X"-c" -a -f 'calendar.c'; then
    echo "File already exists: skipping 'calendar.c'"
else
echo "x - extracting calendar.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > calendar.c &&
X/***************************************************************/
X/*                                                             */
X/*  CALENDAR.C                                                 */
X/*                                                             */
X/*  The code for generating a calendar.                        */
X/*                                                             */
X/*  This file is part of REMIND.                               */
X/*  Copyright (C) 1992 by David F. Skoll.                      */
X/*                                                             */
X/***************************************************************/
X#include "config.h"
X#include <stdio.h>
X#ifdef HAVE_STDLIB_H
X#include <stdlib.h>
X#endif
X#ifdef HAVE_MALLOC_H
X#include <malloc.h>
X#endif
X#include <ctype.h>
X#include "types.h"
X#include "protos.h"
X#include "expr.h"
X#include "globals.h"
X#include "err.h"
X
X/* Data structures used by the calendar */
Xtypedef struct _cal_entry {
X   struct _cal_entry *next;
X   char *text;
X   char *pos;
X   int time;
X} CalEntry;
X
X/* Global variables */
Xstatic CalEntry *CalColumn[7];
X
Xstatic int ColSpaces;
X
XPRIVATE void SortColByTime ARGS((int col));
XPRIVATE void DoCalendarOneWeek ARGS ((void));
XPRIVATE void DoCalendarOneMonth ARGS ((void));
XPRIVATE int WriteCalendarRow ARGS ((void));
XPRIVATE void PrintLeft ARGS ((char *s, int width, char pad));
XPRIVATE void PrintCentered ARGS ((char *s, int width, char pad));
XPRIVATE int WriteOneCalLine ARGS ((void));
XPRIVATE int WriteOneColLine ARGS ((int col));
XPRIVATE void GenerateCalEntries ARGS ((int col));
XPRIVATE void WriteCalHeader ARGS ((void));
XPRIVATE void WriteCalTrailer ARGS ((void));
XPRIVATE int DoCalRem ARGS ((ParsePtr p, int col));
XPRIVATE void WriteSimpleEntries ARGS ((int col, int jul));
XPRIVATE void WriteSolidCalLine ARGS ((void));
XPRIVATE void WriteIntermediateCalLine ARGS ((void));
XPRIVATE void WriteCalDays ARGS ((void));
X
X/***************************************************************/
X/*                                                             */
X/*  ProduceCalendar                                            */
X/*                                                             */
X/*  Main loop for generating a calendar.                       */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPUBLIC void ProduceCalendar(void)
X#else
Xvoid ProduceCalendar()
X#endif
X{
X   int y, m, d;
X
X   ShouldCache = 1;
X
X   ColSpaces = (CalWidth - 9) / 7;
X   CalWidth = 7*ColSpaces + 8;
X
X   if (CalMonths) {
X      FromJulian(JulianToday, &y, &m, &d);
X      JulianToday = Julian(y, m, 1);
X      while (CalMonths--)
X         DoCalendarOneMonth();
X      return;
X   } else {
X      JulianToday -= ((JulianToday+1)%7);
X
X      WriteIntermediateCalLine();
X      WriteCalDays();
X      WriteIntermediateCalLine();
X
X      while (CalWeeks--)
X         DoCalendarOneWeek();
X      return;
X   }
X}
X
X/***************************************************************/
X/*                                                             */
X/*  DoCalendarOneWeek                                          */
X/*                                                             */
X/*  Write a calendar for a single week                         */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE void DoCalendarOneWeek(void)
X#else
Xstatic void DoCalendarOneWeek()
X#endif
X{
X   int y, m, d, done, i;
X   char buf[81];
X   int LinesWritten = 0;
X   int OrigJul = JulianToday;
X
X/* Fill in the column entries */
X   for (i=0; i<7; i++) {
X      GenerateCalEntries(i);
X      JulianToday++;
X   }
X
X/* Output the entries */
X
X/* Here come the first two lines... */
X   putchar('|');
X   for (i=0; i<7; i++) {
X      FromJulian(OrigJul+i, &y, &m, &d);
X      sprintf(buf, "%d %c%c%c ", d, MonthName[m][0], MonthName[m][1],
X                                   MonthName[m][2]);
X      if (OrigJul+i == RealToday)
X         PrintLeft(buf, ColSpaces, '*');
X      else
X         PrintLeft(buf, ColSpaces, ' ');
X      putchar('|');
X   }
X   putchar('\n');
X/*** Take out blank line in weekly calendar display - takes up room
X   putchar('|');
X   for (i=0; i<7; i++) {
X      PrintLeft("", ColSpaces, ' ');
X      putchar('|');
X   }
X   putchar('\n');
X***/
X/* Write the body lines */
X   done = 0;
X   while (!done) {
X      done = WriteOneCalLine();
X      LinesWritten++;
X   }
X
X/* Write any blank lines required */
X   while (LinesWritten++ < CAL_LINES) {
X      putchar('|');
X      for (i=0; i<7; i++) {
X         PrintLeft("", ColSpaces, ' ');
X         putchar('|');
X      }
X      putchar('\n');
X   }
X
X/* Write the final line */
X   WriteIntermediateCalLine();
X}
X
X/***************************************************************/
X/*                                                             */
X/*  DoCalendarOneMonth                                         */
X/*                                                             */
X/*  Produce a calendar for the current month.                  */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE void DoCalendarOneMonth(void)
X#else
Xstatic void DoCalendarOneMonth()
X#endif
X{
X   if (!DoSimpleCalendar) WriteCalHeader();
X
X   while (WriteCalendarRow()) continue;
X
X   if (!DoSimpleCalendar) WriteCalTrailer();
X}
X
X/***************************************************************/
X/*                                                             */
X/*  WriteCalendarRow                                           */
X/*                                                             */
X/*  Write one row of the calendar                              */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE int WriteCalendarRow(void)
X#else
Xstatic int WriteCalendarRow()
X#endif
X{
X   int y, m, d, wd, i;
X   int done;
X   char buf[81];
X   int OrigJul = JulianToday;
X   int LinesWritten = 0;
X
X/* Get the date of the first day */
X   FromJulian(JulianToday, &y, &m, &d);
X   wd = (JulianToday + 1) % 7;
X
X/* Fill in the column entries */
X   for (i=wd; i<7; i++) {
X      if (d+i-wd > DaysInMonth(m, y)) break;
X      GenerateCalEntries(i);
X      JulianToday++;
X   }
X
X/* Output the entries */
X
X/* If it's "Simple Calendar" format, do it simply... */
X   if (DoSimpleCalendar) {
X      for (i=wd; i<7 && d+i-wd<=DaysInMonth(m, y); i++) {
X         WriteSimpleEntries(i, OrigJul+i-wd);
X      }
X      return (d+7-wd <= DaysInMonth(m, y));
X   }
X
X
X/* Here come the first two lines... */
X   putchar('|');
X   for (i=0; i<7; i++) {
X      if (i < wd || d+i-wd>DaysInMonth(m, y))
X         PrintLeft("", ColSpaces, ' ');
X      else {
X         sprintf(buf, "%d", d+i-wd);
X     PrintLeft(buf, ColSpaces, ' ');
X      }
X      putchar('|');
X   }
X   putchar('\n');
X   putchar('|');
X   for (i=0; i<7; i++) {
X      PrintLeft("", ColSpaces, ' ');
X      putchar('|');
X   }
X   putchar('\n');
X
X/* Write the body lines */
X   done = 0;
X   while (!done) {
X      done = WriteOneCalLine();
X      LinesWritten++;
X   }
X
X/* Write any blank lines required */
X   while (LinesWritten++ < CAL_LINES) {
X      putchar('|');
X      for (i=0; i<7; i++) {
X         PrintLeft("", ColSpaces, ' ');
X         putchar('|');
X      }
X      putchar('\n');
X   }
X
X   WriteIntermediateCalLine();
X
X/* Return non-zero if we have not yet finished */
X   return (d+7-wd <= DaysInMonth(m, y));
X}
X
X/***************************************************************/
X/*                                                             */
X/*  PrintLeft                                                  */
X/*                                                             */
X/*  Left-justify a piece of text.                              */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE void PrintLeft(char *s, int width, char pad)
X#else
Xstatic void PrintLeft(s, width, pad)
Xchar *s;
Xint width;
Xchar pad;
X#endif
X{
X   int len = strlen(s);
X   printf("%s", s);
X   while (len++ < width) putchar(pad);
X}
X
X/***************************************************************/
X/*                                                             */
X/*  PrintCentered                                              */
X/*                                                             */
X/*  Center a piec of text                                      */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE void PrintCentered(char *s, int width, char pad)
X#else
Xstatic void PrintCentered(s, width, pad)
Xchar *s;
Xint width;
Xchar pad;
X#endif
X{
X   int len = strlen(s);
X   int d = (width - len) / 2;
X   int i;
X
X   for (i=0; i<d; i++) putchar(pad);
X   printf("%s", s);
X   for (i=d+len; i<width; i++) putchar(pad);
X}
X
X/***************************************************************/
X/*                                                             */
X/*  WriteOneCalLine                                            */
X/*                                                             */
X/*  Write a single line.                                       */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE int WriteOneCalLine(void)
X#else
Xstatic int WriteOneCalLine()
X#endif
X{
X   int done = 1, i;
X
X   putchar('|');
X   for (i=0; i<7; i++) {
X      if (CalColumn[i]) {
X         if (WriteOneColLine(i)) done = 0;
X      } else {
X         PrintCentered("", ColSpaces, ' ');
X      }
X      putchar('|');
X   }
X   putchar('\n');
X
X   return done;
X}
X
X
X/***************************************************************/
X/*                                                             */
X/*  WriteOneColLine                                            */
X/*                                                             */
X/*  Write a single line for a specified column.  Return 1 if   */
X/*  the column still has entries; 0 otherwise.                 */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE int WriteOneColLine(int col)
X#else
Xstatic int WriteOneColLine(col)
Xint col;
X#endif
X{
X   CalEntry *e = CalColumn[col];
X   char *s;
X   char *space;
X   int numwritten = 0;
X
X/* Print as many characters as possible within the column */
X   space = NULL;
X   s = e->pos;
X
X/* If we're at the end, and there's another entry, do a blank line and move
X   to next entry. */
X   if (!*s && e->next) {
X      PrintLeft("", ColSpaces, ' ');
X      CalColumn[col] = e->next;
X      free(e->text);
X      free(e);
X      return 1;
X   }
X
X/* Find the last space char within the column. */
X   while (s - e->pos <= ColSpaces) {
X      if (!*s) {space = s; break;}
X      if (*s == ' ') space = s;
X      s++;
X   }
X
X/* If we couldn't find a space char, print what we have. */
X   if (!space) {
X      for (s = e->pos; s - e->pos < ColSpaces; s++) {
X         if (!*s) break;
X     numwritten++;
X         putchar(*s);
X      }
X      e->pos = s;
X   } else {
X
X/* We found a space - print everything before it. */
X      for (s = e->pos; s<space; s++) {
X         if (!*s) break;
X     numwritten++;
X     putchar(*s);
X      }
X   }
X
X/* Flesh out the rest of the column */
X   while(numwritten++ < ColSpaces) putchar(' ');
X
X/* Skip any spaces before next word */
X   while (*s == ' ') s++;
X
X/* If done, free memory if no next entry. */
X   if (!*s && !e->next) {
X      CalColumn[col] = e->next;
X      free(e->text);
X      free(e);
X   } else {
X      e->pos = s;
X   }
X   if (CalColumn[col]) return 1; else return 0;
X}
X
X/***************************************************************/
X/*                                                             */
X/*  GenerateCalEntries                                         */
X/*                                                             */
X/*  Generate the calendar entries for the ith column           */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE void GenerateCalEntries(int col)
X#else
Xstatic void GenerateCalEntries(col)
Xint col;
X#endif
X{
X   int r;
X   Token tok;
X   char *s;
X   Parser p;
X
X/* Do some initialization first... */
X   ClearGlobalOmits();
X   DestroyOmitContexts();
X   DestroyVars();
X
X   r=OpenFile(InitialFile);
X   if (r) {
X      fprintf(ErrFp, "Can't read %s: %s\n", InitialFile, ErrMsg[r]);
X      exit(1);
X   }
X
X   while(1) {
X      r = ReadLine();
X      if (r == E_EOF) return;
X      if (r) {
X     Eprint("Error reading file: %s", ErrMsg[r]);
X     exit(1);
X      }
X      s = FindInitialToken(&tok, CurLine);
X
X      /* Should we ignore it? */
X      if (NumIfs &&
X          tok.type != T_If &&
X          tok.type != T_Else &&
X          tok.type != T_EndIf &&
X          tok.type != T_IfTrig &&
X          ShouldIgnoreLine())
X      {
X      /* DO NOTHING */
X      }
X      else {
X         /* Create a parser to parse the line */
X         CreateParser(s, &p);
X
X         switch(tok.type) {
X
X            case T_Empty:
X        case T_Comment:
X           break;
X
X        case T_ErrMsg:  r=DoErrMsg(&p);  break;
X        case T_Rem:     r=DoCalRem(&p, col); break;
X        case T_If:      r=DoIf(&p);      break;
X        case T_IfTrig:  r=DoIfTrig(&p);  break;
X        case T_Else:    r=DoElse(&p);    break;
X        case T_EndIf:   r=DoEndif(&p);   break;
X        case T_Include: r=DoInclude(&p); break;
X        case T_Exit:    exit(99);
X        case T_Set:     r=DoSet(&p);     break;
X        case T_Fset:    r=DoFset(&p);    break;
X        case T_UnSet:   r=DoUnset(&p);   break;
X        case T_Clr:     r=DoClear(&p);   break;
X            case T_Debug:   break;  /* IGNORE DEBUG CMD */
X        case T_Dumpvars: break; /* IGNORE DUMPVARS CMD */
X        case T_Banner:  break;  /* IGNORE BANNER CMD */
X        case T_Omit:    r=DoOmit(&p);
X                       if (r == E_PARSE_AS_REM) {
X                   DestroyParser(&p);
X                   CreateParser(s, &p);
X                   r=DoCalRem(&p, col);
X                }
X                            break;
X        case T_Pop:     r=PopOmitContext(&p);     break;
X        case T_Push:    r=PushOmitContext(&p);    break;
X            case T_Preserve: r=DoPreserve(&p);        break;
X        case T_RemType: if (tok.val == RUN_TYPE) {
X                               r=DoRun(&p);
X                               break;
X                 } else {
X                    CreateParser(CurLine, &p);
X                r=DoCalRem(&p, col);
X                break;
X                 }
X
X     /* If we don't recognize the command, do a REM by default */
X     /* Note:  Since the parser hasn't been used yet, we don't */
X     /* need to destroy it here. */
X
X        default:        CreateParser(CurLine, &p);
X                r=DoCalRem(&p, col);
X                break;
X         }
X         if (r && (!Hush || r != E_RUN_DISABLED)) Eprint("%s", ErrMsg[r]);
X
X         /* Destroy the parser - free up resources it may be tying up */
X         DestroyParser(&p);
X      }
X   }
X}
X
X
X/***************************************************************/
X/*                                                             */
X/*  WriteCalHeader                                             */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE void WriteCalHeader(void)
X#else
Xstatic void WriteCalHeader()
X#endif
X{
X   char buf[80];
X   int y, m, d;
X
X   FromJulian(JulianToday, &y, &m, &d);
X   sprintf(buf, "%s %d", MonthName[m], y);
X
X   WriteSolidCalLine();
X
X   putchar('|');
X   PrintCentered(buf, CalWidth-2, ' ');
X   putchar('|');
X   putchar('\n');
X
X   WriteIntermediateCalLine();
X   WriteCalDays();
X   WriteIntermediateCalLine();
X}
X
X/***************************************************************/
X/*                                                             */
X/*  WriteCalTrailer                                            */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE void WriteCalTrailer(void)
X#else
Xstatic void WriteCalTrailer()
X#endif
X{
X   putchar('\f');
X}
X
X/***************************************************************/
X/*                                                             */
X/*  DoCalRem                                                   */
X/*                                                             */
X/*  Do the REM command in the context of a calendar.           */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE int DoCalRem(ParsePtr p, int col)
X#else
Xstatic int DoCalRem(p, col)
XParsePtr p;
Xint col;
X#endif
X{
X
X   Trigger trig;
X   TimeTrig tim;
X   int r;
X   int jul;
X   CalEntry *CurCol = CalColumn[col];
X   CalEntry *e;
X   char *s;
X
X   /* Parse the trigger date and time */
X   if (r=ParseRem(p, &trig, &tim)) return r;
X
X   if (trig.typ == NO_TYPE) return E_EOLN;
X   if (trig.typ == SAT_TYPE) return DoSatRemind(&trig, &tim, p);
X   /* Calculate the trigger date */
X   jul = ComputeTrigger(JulianToday, &trig, &r);
X   if (r) return r;
X
X   /* If trigger date == today, add it to the current entry */
X   if (jul == JulianToday) {
X      s = SubstBuffer;
X      if (DoSimpleCalendar || tim.ttime != NO_TIME)
X         s += strlen(SimpleTime(tim.ttime, s));
X      if (r=DoSubst(p, s, &trig, &tim, jul, CAL_MODE)) return r;
X      if (!*s) return OK;
X      s = SubstBuffer;
X      if (!DoSimpleCalendar) while (isspace(*s)) s++;
X      e = NEW(CalEntry);
X      if (!e) return E_NO_MEM;
X      e->text = StrDup(s);
X      if (!e->text) {
X         free(e);
X     return E_NO_MEM;
X      }
X      e->pos = e->text;
X      e->time = tim.ttime;
X      e->next = CurCol;
X      CalColumn[col] = e;
X      SortColByTime(col);
X   }
X   return OK;
X}
X
X/***************************************************************/
X/*                                                             */
X/*  WriteSimpleEntries                                         */
X/*                                                             */
X/*  Write entries in 'simple calendar' format.                 */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE void WriteSimpleEntries(int col, int jul)
X#else
Xstatic void WriteSimpleEntries(col, jul)
Xint col, jul;
X#endif
X{
X   CalEntry *e = CalColumn[col];
X   CalEntry *n;
X   int y, m, d;
X
X   FromJulian(jul, &y, &m, &d);
X   while(e) {
X      printf("%04d/%02d/%02d ", y, m+1, d);
X      printf("%s\n", e->text);
X      free(e->text);
X      n = e->next;
X      free(e);
X      e = n;
X   }
X   CalColumn[col] = NULL;
X}
X
X/***************************************************************/
X/*                                                             */
X/*  Various functions for writing different types of lines.    */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE void WriteSolidCalLine(void)
X#else
Xstatic void WriteSolidCalLine()
X#endif
X{
X   putchar('+');
X   PrintCentered("", CalWidth-2, '-');
X   putchar('+');
X   putchar('\n');
X}
X
X#ifdef HAVE_PROTOS
XPRIVATE void WriteIntermediateCalLine(void)
X#else
Xstatic void WriteIntermediateCalLine()
X#endif
X{
X   int i;
X
X   putchar('+');
X   for (i=0; i<7; i++) {
X      PrintCentered("", ColSpaces, '-');
X      putchar('+');
X   }
X   putchar('\n');
X}
X
X#ifdef HAVE_PROTOS
XPRIVATE void WriteCalDays(void)
X#else
Xstatic void WriteCalDays()
X#endif
X{
X   int i;
X   putchar('|');
X   for (i=0; i<7; i++) {
X      PrintCentered(DayName[(i+6)%7], ColSpaces, ' ');
X      putchar('|');
X   }
X   putchar('\n');
X}
X
X/***************************************************************/
X/*                                                             */
X/*  SimpleTime                                                 */
X/*                                                             */
X/*  Format the time according to simple time format.           */
X/*  If out is NULL, result placed in internal static buffer.   */
X/*  A trailing space is always added.                          */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPUBLIC char *SimpleTime(int tim, char *out)
X#else
Xchar *SimpleTime(tim, out)
Xint tim;
Xchar *out;
X#endif
X{
X   static buf[9];
X   int h, min, hh;
X
X   if (!out) out = (char *) buf;
X
X   *out = 0;
X
X   switch(ScFormat) {
X
X      case SC_AMPM:
X     if (tim == NO_TIME) sprintf(out, "        ");
X     else {
X        h = tim / 60;
X        min = tim % 60;
X        if (h == 0) hh=12;
X        else if (h > 12) hh=h-12;
X        else hh=h;
X        sprintf(out, "%2d:%02d%s ", hh, min, (h>=12) ? "pm" : "am");
X         }
X     break;
X
X      case SC_MIL:
X     if (tim == NO_TIME) sprintf(out, "      ");
X     else {
X        h = tim / 60;
X        min = tim % 60;
X        sprintf(out, "%02d:%02d ", h, min);
X         }
X     break;
X   }
X   return out;
X}
X
X/***************************************************************/
X/*                                                             */
X/*  SortColByTime                                              */
X/*                                                             */
X/*  Sort the calendar entries in a column by time.             */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE void SortColByTime(int col)
X#else
Xstatic void SortColByTime(col)
Xint col;
X#endif
X{
X   CalEntry *cur, *prev, *next;
X
X   cur = CalColumn[col];
X   prev = NULL;
X
X/* Note that we use >= comparison rather than > comparison to preserve the
X   file order of reminders which have the same time! */
X
X   while (cur->next && cur->time >= cur->next->time) {
X      next = cur->next;
X   /* Swap cur and next */
X      if (!prev) {
X         CalColumn[col] = next;
X     cur->next = next->next;
X     next->next = cur;
X     prev = next;
X      } else {
X         prev->next = next;
X     cur->next = next->next;
X     next->next = cur;
X     prev = next;
X      }
X   }
X}
X
SHAR_EOF
$TOUCH -am 1109141292 calendar.c &&
chmod 0600 calendar.c ||
echo "restore of calendar.c failed"
set `wc -c calendar.c`;Wc_c=$1
if test "$Wc_c" != "22448"; then
    echo original size 22448, current size $Wc_c
fi
fi
# ============= dorem.c ==============
if test X"$1" != X"-c" -a -f 'dorem.c'; then
    echo "File already exists: skipping 'dorem.c'"
else
echo "x - extracting dorem.c (Text)"
sed 's/^X//' << 'SHAR_EOF' > dorem.c &&
X/***************************************************************/
X/*                                                             */
X/*  DOREM.C                                                    */
X/*                                                             */
X/*  Contains routines for parsing reminders and evaluating     */
X/*  triggers.  Also contains routines for parsing OMIT         */
X/*  commands.                                                  */
X/*                                                             */
X/*  This file is part of REMIND.                               */
X/*  Copyright (C) 1992 by David F. Skoll.                      */
X/*                                                             */
X/***************************************************************/
X#include <stdio.h>
X#include "config.h"
X#ifdef HAVE_STDLIB_H
X#include <stdlib.h>
X#endif
X#ifdef HAVE_MALLOC_H
X#include <malloc.h>
X#endif
X#include "globals.h"
X#include "err.h"
X#include "types.h"
X#include "protos.h"
X#include "expr.h"
X
XPRIVATE int ParseTimeTrig ARGS ((ParsePtr s, TimeTrig *tim));
XPRIVATE int ParseLocalOmit ARGS ((ParsePtr s, Trigger *t));
XPRIVATE int ParseUntil ARGS ((ParsePtr s, Trigger *t));
X
X/***************************************************************/
X/*                                                             */
X/*  DoRem                                                      */
X/*                                                             */
X/*  Do the REM command.                                        */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPUBLIC int DoRem(ParsePtr p)
X#else
Xint DoRem(p)
XParsePtr p;
X#endif
X{
X
X   Trigger trig;
X   TimeTrig tim;
X   int r;
X   int jul;
X
X   /* Parse the trigger date and time */
X   if (r=ParseRem(p, &trig, &tim)) return r;
X
X   if (trig.typ == NO_TYPE) return E_EOLN;
X   if (trig.typ == SAT_TYPE) return DoSatRemind(&trig, &tim, p);
X   /* Calculate the trigger date */
X   jul = ComputeTrigger(JulianToday, &trig, &r);
X   if (r) return r;
X
X/* Queue the reminder, if necessary */
X#ifdef HAVE_QUEUED
X   if (jul == JulianToday &&
X       !(!IgnoreOnce &&
X      trig.once != NO_ONCE &&
X      FileAccessDate == JulianToday))
X      QueueReminder(p, trig.typ, &tim);
X/* If we're in daemon mode, do nothing over here */
X   if (Daemon) return OK;
X#endif
X
X
X   if (ShouldTriggerReminder(&trig, &tim, jul)) {
X      if (r=TriggerReminder(p, &trig, &tim, jul)) return r;
X   }
X
X   return OK;
X}
X
X/***************************************************************/
X/*                                                             */
X/*  ParseRem                                                   */
X/*                                                             */
X/*  Given a parse pointer, parse line and fill in a            */
X/*  trigger structure.                                         */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPUBLIC int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim)
X#else
Xint ParseRem(s, trig, tim)
XParsePtr s;
XTrigger *trig;
XTimeTrig *tim;
X#endif
X{
X   register int r;
X   Token tok;
X
X   trig->y = NO_YR;
X   trig->m = NO_MON;
X   trig->d = NO_DAY;
X   trig->wd = NO_WD;
X   trig->back = NO_BACK;
X   trig->delta = NO_DELTA;
X   trig->until = NO_UNTIL;
X   trig->rep  = NO_REP;
X   trig->localomit = NO_WD;
X   trig->skip = NO_SKIP;
X   trig->once = NO_ONCE;
X   trig->typ = NO_TYPE;
X   tim->ttime = NO_TIME;
X   tim->delta = NO_DELTA;
X   tim->rep   = NO_REP;
X
X   while(1) {
X      /* Read space-delimited string */
X      r = ParseToken(s, TokBuffer);
X      if (r) return r;
X
X      /* Figure out what we've got */
X      FindToken(TokBuffer, &tok);
X      switch(tok.type) {
X     case T_WkDay:
X        if (trig->wd & (1 << tok.val)) {
X           Eprint("Weekday specified twice");
X           return E_PARSE_ERR;
X        }
X        trig->wd |= (1 << tok.val);
X        break;
X
X     case T_Month:
X        if (trig->m != NO_MON) {
X           Eprint("Month specified twice");
X           return E_PARSE_ERR;
X        }
X        trig->m = tok.val;
X        break;
X
X     case T_Skip:
X        if (trig->skip != NO_SKIP) {
X           Eprint("Only use one of BEFORE, AFTER or SKIP");
X           return E_PARSE_ERR;
X        }
X        trig->skip = tok.val;
X        break;
X
X     case T_At:
X        r=ParseTimeTrig(s, tim);
X        if (r) return r;
X        break;
X
X     case T_RemType:
X        trig->typ = tok.val;
X        if (s->isnested) {
X           Eprint("Can't nest '%s' in expression", TokBuffer);
X           return E_PARSE_ERR;
X            }
X        return OK;
X
X     case T_Until:
X        r=ParseUntil(s, trig);
X        if (r) return r;
X        break;
X
X     case T_Year:
X        if (trig->y != NO_YR) {
X           Eprint("Year specified twice");
X           return E_PARSE_ERR;
X        }
X        trig->y = tok.val;
X        break;
X
X     case T_Day:
X        if (trig->d != NO_DAY) {
X           Eprint("Day of month specified twice");
X           return E_PARSE_ERR;
X        }
X        trig->d = tok.val;
X        break;
X
X     case T_Rep:
X        if (trig->rep != NO_REP) {
X           Eprint("Repeat value specified twice");
X           return E_PARSE_ERR;
X        }
X        trig->rep = tok.val;
X        break;
X
X     case T_Delta:
X        if (trig->delta != NO_DELTA) {
X           Eprint("Delta value specified twice");
X           return E_PARSE_ERR;
X        }
X        trig->delta = tok.val;
X        break;
X
X     case T_Back:
X        if (trig->back != NO_BACK) {
X           Eprint("Back value specified twice");
X           return E_PARSE_ERR;
X        }
X        trig->back = tok.val;
X        break;
X
X     case T_Once:
X        if (trig->once != NO_ONCE) {
X           Eprint("ONCE specified twice.  (Hah.)");
X           return E_PARSE_ERR;
X        }
X        trig->once = ONCE_ONCE;
X        break;
X
X     case T_Omit:
X        r = ParseLocalOmit(s, trig);
X        if (r) return r;
X        break;
X
X     case T_Empty:
X        return OK;
X
X     default:
X        Eprint("Unknown token in REM command: %s", TokBuffer);
X        return E_PARSE_ERR;
X      }
X   }
X}
X
X/***************************************************************/
X/*                                                             */
X/*  ParseTimeTrig - parse the AT part of a timed reminder      */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE int ParseTimeTrig(ParsePtr s, TimeTrig *tim)
X#else
Xstatic int ParseTimeTrig(s, tim)
XParsePtr s;
XTimeTrig *tim;
X#endif
X{
X   Token tok;
X   int r;
X
X   while(1) {
X      r = ParseToken(s, TokBuffer);
X      if (r) return r;
X      FindToken(TokBuffer, &tok);
X      switch(tok.type) {
X     case T_Time:
X        tim->ttime = tok.val;
X            break;
X
X     case T_Delta:
X        tim->delta = (tok.val > 0) ? tok.val : -tok.val;
X        break;
X
X     case T_Rep:
X        tim->rep = tok.val;
X        break;
X
X         default:
X            if (tim->ttime == NO_TIME) {
X               Eprint("Expecting time after AT.");
X               return E_PARSE_ERR;
X        }
X/* Save in global variable */
X        LastTriggerTime = tim->ttime;
X        PushToken(TokBuffer);
X            return OK;
X      }
X   }
X}
X
X/***************************************************************/
X/*                                                             */
X/*  ParseLocalOmit - parse the local OMIT portion of a         */
X/*  reminder.                                                  */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE int ParseLocalOmit(ParsePtr s, Trigger *t)
X#else
Xstatic int ParseLocalOmit(s, t)
XParsePtr s;
XTrigger *t;
X#endif
X{
X   Token tok;
X   int r;
X
X   while(1) {
X      r = ParseToken(s, TokBuffer);
X      if (r) return r;
X      FindToken(TokBuffer, &tok);
X      switch(tok.type) {
X     case T_WkDay:
X        t->localomit |= (1 << tok.val);
X        break;
X
X     default:
X        PushToken(TokBuffer);
X        return OK;
X      }
X   }
X}
X
X/***************************************************************/
X/*                                                             */
X/*  ParseUntil - parse the UNTIL portion of a reminder         */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPRIVATE int ParseUntil(ParsePtr s, Trigger *t)
X#else
Xstatic int ParseUntil(s, t)
XParsePtr s;
XTrigger *t;
X#endif
X{
X   int y = NO_YR,
X       m = NO_MON,
X       d = NO_DAY;
X
X   Token tok;
X   int r;
X
X   if (t->until != NO_UNTIL) {
X      Eprint("Cannot specify UNTIL twice");
X      return E_PARSE_ERR;
X   }
X
X   while(1) {
X      r = ParseToken(s, TokBuffer);
X      if (r) return r;
X      FindToken(TokBuffer, &tok);
X      switch(tok.type) {
X     case T_Year:
X        if (y != NO_YR) {
X           Eprint("Year specified twice in UNTIL");
X           return E_PARSE_ERR;
X        }
X        y = tok.val;
X        break;
X
X     case T_Month:
X        if (m != NO_MON) {
X           Eprint("Month specified twice in UNTIL");
X           return E_PARSE_ERR;
X        }
X        m = tok.val;
X        break;
X
X     case T_Day:
X        if (d != NO_DAY) {
X           Eprint("Day specified twice in UNTIL");
X           return E_PARSE_ERR;
X        }
X        d = tok.val;
X        break;
X
X     default:
X        if (y == NO_YR || m == NO_MON || d == NO_DAY) {
X           Eprint("Incompletely specified UNTIL");
X           return E_PARSE_ERR;
X        }
X        t->until = Julian(y, m, d);
X        PushToken(TokBuffer);
X        return OK;
X      }
X   }
X}
X
X/***************************************************************/
X/*                                                             */
X/*  TriggerReminder                                            */
X/*                                                             */
X/*  Trigger the reminder if it's a RUN or MSG type.            */
X/*                                                             */
X/***************************************************************/
X#ifdef HAVE_PROTOS
XPUBLIC int TriggerReminder(ParsePtr p, Trigger *t, TimeTrig *tim, int jul)
X#else
Xint TriggerReminder(p, t, tim, jul)
XParsePtr p;
XTrigger *t;
XTimeTrig *tim;
Xint jul;
X#endif
X{
X   int r, y, m, d;
X   Trigger tempTrig;
X   TimeTrig tempTime;
X   Parser tempP;
X
X   if (t->typ == RUN_TYPE && RunDisabled) return E_RUN_DISABLED;
X   if (t->typ == CAL_TYPE) return OK;
X
X/* If we're in Daemon mode, do nothing over here... */
X
X/* If it's a MSG-type reminder, issue the banner. */
X   if (t->typ == MSG_TYPE && !NumTriggered && !NextMode) {
X      CreateParser(Banner, &tempP);
X      tempP.allownested = 0;
X      tempTrig.typ = MSG_TYPE;
X      tempTime.ttime = SystemTime()/60;
X      if (!(r=DoSubst(&tempP, SubstBuffer, &tempTrig,
X           &tempTime, JulianToday, NORMAL_MODE)))
X         if (*SubstBuffer) printf("%s\n", SubstBuffer);
X      DestroyParser(&tempP);
X   }
X
X/* If it's NextMode, process as a CAL-type entry, and issue simple-calendar
X   format. */
X   if (NextMode) {
X      if (r=DoSubst(p, SubstBuffer, t, tim, jul, CAL_MODE)) return r;
X      if (!*SubstBuffer) return OK;
X      FromJulian(jul, &y, &m, &d);
X      printf("%04d/%02d/%02d %s%s\n", y, m+1, d,
X                                      SimpleTime(tim->ttime, NULL),
X                                      SubstBuffer);
X      return OK;
X   }
X
X/* Put the substituted string into the SubstBuffer */
X   if (r=DoSubst(p, SubstBuffer, t, tim, jul, NORMAL_MODE)) return r;
X
X/* Go for it... */
X   if (t->typ == MSG_TYPE) printf("%s\n", SubstBuffer);
X   else system(SubstBuffer);
X
X   NumTriggered++;
X   return OK;
X}
X
X/***************************************************************/
X/*                                                             */
X/*  ShouldTriggerReminder                                      */
X/*                                                             */
X/*  Return 1 if we should trigger a reminder, based on today's */
X/*  date and the trigger.  Return 0 if reminder should not be  */
X/*  triggered.                                                 */
X/*                                                             */
X/***************************************************************/
X#ifdef __TURBOC__
X#pragma argsused
X#endif
X#ifdef HAVE_PROTOS
XPUBLIC int ShouldTriggerReminder(Trigger *t, TimeTrig *tim, int jul)
X#else
Xint ShouldTriggerReminder(t, tim, jul)
XTrigger *t;
XTimeTrig *tim;
Xint jul;
X#endif
X{
X   int r;
X
X   /* Handle the ONCE modifier in the reminder. */
X   if (!IgnoreOnce && t->once !=NO_ONCE && FileAccessDate == JulianToday)
X      return 0;
X
X   if (jul < JulianToday) return 0;
X
X   /* Don't trigger timed reminders if DontIssueAts is true, and if the
X      reminder is for today */
X
X#ifdef HAVE_QUEUED
X   if (jul == JulianToday && DontIssueAts && tim->ttime != NO_TIME) return 0;
X#endif
X
X   /* Don't trigger "old" timed reminders */
X/*** REMOVED...
X      if (jul == JulianToday &&
X       tim->ttime != NO_TIME &&
X       tim->ttime < SystemTime() / 60) return 0;
X *** ...UNTIL HERE */
X
X   /* If "infinite delta" option is chosen, always trigger future reminders */
X   if (InfiniteDelta || NextMode) return 1;
X
X   /* Move back by delta days, if any */
X   if (t->delta != NO_DELTA) {
X      if (t->delta < 0)
X     jul = jul + t->delta;
X      else {
X     r = t->delta;
X     while(r && jul > JulianToday) {
X        jul--;
X        if (!IsOmitted(jul, t->localomit)) r--;
X     }
X      }
X   }
X
X   /* Should we trigger the reminder? */
X   return (jul <= JulianToday);
X}
X
X/***************************************************************/
X/*                                                             */
X/*  DoSatRemind                                                */
X/*                                                             */
X/*  Do the "satisfying..." remind calculation.                 */
X/*                                                             */
X/***************************************************************/
X#ifdef __TURBOC__
X#pragma argsused
X#endif
X#ifdef HAVE_PROTOS
XPUBLIC int DoSatRemind(Trigger *trig, TimeTrig *tim, ParsePtr p)
X#else
Xint DoSatRemind(trig, tim, p)
XTrigger *trig;
XTimeTrig *tim;
XParsePtr p;
X#endif
X{
X   int iter, jul, r;
X   Value v;
X   char *s;
X
X   iter = 0;
X   jul = JulianToday;
X   while (iter++ < MaxSatIter) {
X      jul = ComputeTrigger(jul, trig, &r);
X      if (r) {
X         if (r == E_CANT_TRIG) return OK; else return r;
X      }
X      s = p->pos;
X      r = EvaluateExpr(p, &v);
X      p->pos = s;
X      if (r) return r;
X      if (v.type != INT_TYPE && v.type != STR_TYPE) return E_BAD_TYPE;
X      if (v.type == INT_TYPE && v.v.val) return OK;
X      if (v.type == STR_TYPE && *v.v.str) return OK;
X      jul++;
X   }
X   LastTrigValid = 0;
X   return OK;
X}
X
SHAR_EOF
$TOUCH -am 1109141292 dorem.c &&
chmod 0600 dorem.c ||
echo "restore of dorem.c failed"
set `wc -c dorem.c`;Wc_c=$1
if test "$Wc_c" != "14531"; then
    echo original size 14531, current size $Wc_c
fi
fi
echo "End of part 2, continue with part 3"
exit 0

exit 0 # Just in case...