jbr0@cbnews.att.com (joseph.a.brownlee) (01/02/91)
#!/bin/sh
# This is part 03 of a multipart archive
# ============= pcal.c ==============
if test -f 'pcal.c' -a X"$1" != X"-c"; then
echo 'x - skipping pcal.c (File already exists)'
else
echo 'x - extracting pcal.c (Text)'
sed 's/^X//' << 'SHAR_EOF' > 'pcal.c' &&
static char VERSION_STRING[] = "@(#)pcal v3.0 - print Postscript calendars";
/*
X * pcal.c - generate PostScript file to print calendar for any month and year
X *
X * The original PostScript code to generate the calendars was written by
X * Patrick Wood (Copyright (c) 1987 by Patrick Wood of Pipeline Associates,
X * Inc.), and authorized for modification and redistribution. The calendar
X * file inclusion code was originally written in "bs(1)" by Bill Vogel of
X * AT&T. Patrick's original PostScript was modified and enhanced several
X * times by others whose names have regrettably been lost. This C version
X * was originally created by Ken Keirnan of Pacific Bell; additional
X * enhancements by Joseph P. Larson, Ed Hand, Andrew Rogers (who also did
X * the VMS port), Mark Kantrowitz, and Joe Brownlee. The moon routines were
X * originally written by Mark Hanson, and were improved and incorporated into
X * this version by Jamie Zawinski.
X *
X * Revision history:
X *
X * 3.0 AWR 12/10/90 Support concept of "weekday", "workday", * and "holiday" (and converses)
X *
X * AWR 11/13/90 Substantial revision of program logic:
X * extracted pcaldefs.h and pcallang.h,
X * moving all language dependencies (even
X * flag names) to the latter.
X *
X * add -I flag to reinitialize all
X * flags to program defaults; -j and -J
X * flags (print Julian dates); add -x,
X * -y, -X, -Y flags (as per Ed Hand)
X * for output scaling and translation
X *
X * allow "wildcard" dates (e.g., "all
X * Thursday{s} in Oct", "last Friday in
X * all") and notes ("note all <text>);
X * print full "help" message (including
X * date file syntax)
X *
X * 2.6 AWR 10/15/90 parse floating dates (e.g. "first
X * Monday in September") and relative
X * floating dates (e.g., "Friday after
X * fourth Thursday in November"); simplify
X * logic of -F option; add -F to usage
X * message; replace COLOR_MSG() string
X * with color_msg() routine; add -h
X * (help message) and -A | -E (American |
X * European date format) flags; renamed
X * flag sets for clarity; more comments
X *
X * 2.5 JAB 10/04/90 added -F option
X *
X * 2.4 --- 10/01/90 * no modifications *
X *
X * 2.3 JWZ/AWR 09/18/90 added moon routines
X *
X * 2.2 AWR 09/17/90 revise logic of parse(); new usage
X * message
X *
X * JAB/AWR 09/14/90 support "note" lines in date file
X *
X * 2.1 MK/AWR 08/27/90 support -L, -C, -R, -n options;
X * print holiday text next to date
X *
X * AWR 08/24/90 incorporate cpp-like functionality;
X * add -D and -U options; save date file
X * information in internal data structure;
X * look for PCAL_OPTS and PCAL_DIR; look
X * for ~/.calendar and ~/calendar
X *
X * 2.0 AWR 08/08/90 included revision history; replaced -r
X * flag with -l and -p; replaced -s and -S
X * flags with -b and -g; recognize flags
X * set in date file; translate ( and ) in
X * text to octal escape sequence; usage()
X * message condensed to fit 24x80 screen
X *
X * Parameters:
X *
X * pcal [opts] generate calendar for current month/year
X *
X * pcal [opts] yy generate calendar for entire year yy
X *
X * pcal [opts] mm yy generate calendar for month mm
X * (Jan = 1), year yy (19yy if yy < 100)
X *
X * pcal [opts] mm yy n as above, for n consecutive months
X *
X * Output:
X *
X * PostScript file to print calendars for all selected months.
X *
X * Options:
X *
X * -b <DAY> print specified weekday in black
X * -g <DAY> print specified weekday in gray
X * (default: print Saturdays and Sundays in gray)
X *
X * -d <FONT> specify alternate font for day names
X * (default: Times-Bold)
X *
X * -n <FONT> specify alternate font for notes in boxes
X * (default: Helvetica-Narrow)
X *
X * -t <FONT> specify alternate font for titles
X * (default: Times-Bold)
X *
X * -D <SYM> define preprocessor symbol
X * -U <SYM> un-define preprocessor symbol
X *
X * -e generate empty calendar (ignore date file)
X *
X * -f <FILE> specify alternate date file (default:
X * ~/.calendar on Un*x, SYS$LOGIN:CALENDAR.DAT
X * on VMS; if environment variable [logical
X * name on VMS] PCAL_DIR exists, looks there
X * instead)
X *
X * -o <FILE> specify alternate output file (default:
X * stdout on Un*x, CALENDAR.PS on VMS)
X *
X * -L <STRING> specify left foot string (default: "")
X * -C <STRING> specify center foot string (default: "")
X * -R <STRING> specify right foot string (default: "")
X *
X * -l generate landscape-mode calendars
X * -p generate portrait-mode calendars
X * (default: landscape-mode)
X *
X * -h (command line only) write "usage" message
X * to stdout
X *
X * -m draw a small moon icon on the days of the
X * full, new, and half moons.
X * -M draw a small moon icon every day.
X * (default: no moons)
X *
X * -F <DAY> select alternate day to be displayed as the
X * first day of the week (default: Sunday)
X *
X * -A dates are in American format (e.g., 10/15/90,
X * Oct 15) (default)
X * -E dates are in European format (e.g., 15.10.90,
X * 15 Oct)
X *
X * -x <XSCALE> These two options can be used to change
X * -y <YSCALE> the size of the calendar.
X *
X * -X <XTRANS> These two options can be used to relocate
X * -Y <YTRANS> the position of the calendar on the page.
X *
X * -j print Julian dates (day of year)
X * -J print Julian dates and days remaining
X * (default: neither)
X *
X *
X * There are many ways to specify these options in addition to using the
X * command line; this facilitates customization to the user's needs.
X *
X * If the environment variable (global symbol on VMS) PCAL_OPTS is
X * present, its value will be parsed as if it were a command line.
X * Any options specified will override the program defaults.
X *
X * All but the -e, -f, -h, -D, and -U options may be specified in the date
X * file by the inclusion of one or more lines of the form "opt <options>".
X * Any such options override any previous values set either as program
X * defaults, via PCAL_OPTS, or in previous "opt" lines.
X *
X * Options explicitly specified on the command line in turn override all
X * of the above.
X *
X * Any flag which normally takes an argument may also be specified without
X * an argument; this resets the corresponding option to its default. -D
X * alone un-defines all symbols; -U alone has no effect.
X *
X * Parameters and flags may be mixed on the command line. In some cases
X * (e.g., when a parameter follows a flag without its optional argument)
X * this may lead to ambiguity; the dummy flag '-' (or '--') may be used
X * to separate them, i.e. "pcal -t - 9 90".
X *
X *
X * Date file syntax:
X *
X * The following rules describe the syntax of date file entries:
X *
X * year <year>
X *
X * opt <options>
X *
X * note <month_name> <text>
X * note <month> <text>
X * note all <text>
X *
X * if -A flag (American date formats) specified:
X * <month_spec> <day>{*} {<text>}
X * <month><sep><day>{<sep><year>}{*} {<text>}
X *
X * if -E flag (European date formats) specified:
X * <day> <month_spec>{*} {<text>}
X * <day><sep><month>{<sep><year>}{*} {<text>}
X *
X * <ordinal> <day_spec> in <month_spec>{*} {<text>}
X * <day_spec> <prep> <date_spec>
X *
X * where
X * {x} means x is optional
X *
X * <date_spec> := any of the above date specs (not year, note, or opt)
X * <month_name> := first 3+ characters of name of month, or "all"
X * <day_name> := first 3+ characters of name of weekday, "day",
X * "weekday", "workday", "holiday", "nonweekday",
X * "nonworkday", or "nonholiday"
X * <ordinal> := "first", "1st", ... "fifth", "5th", "last", or "all"
X * <prep> := "before", "preceding", "after", "following", "on_or_before",
X * or "on_or_after"
X * <sep> := one or more non-numeric, non-space, non-'*' characters
X * <month>, <day>, <year> are the numeric forms
X *
X * <options> := any command-line option except -e, -f, -h, -D, -U
X *
X * Comments start with '#' and run through end-of-line.
X *
X * Holidays may be flagged by specifying '*' as the last character of
X * the date field(s), e.g. "10/12* Columbus Day", "July 4* Independence
X * Day", etc. Any dates flagged as holidays will be printed in gray, and
X * any associated text will appear adjacent to the date.
X *
X * Note that the numeric date formats (mm/dd{/yy}, dd.mm{.yy}) support
X * an optional year, which will become the subsequent default year. The
X * alphabetic date formats (month dd, dd month) do not support a year
X * field; the "year yy" command is provided to reset the default year.
X *
X * "Floating" days may be specified in the date file as "first Mon in
X * Sep", "last Mon in May", "4th Thu in Nov", etc.; any word may be
X * used in place of "in". "Relative floating" days (e.g. "Fri after 4th
X * Thu in Nov") are also accepted; they may span month/year bounds.
X * Pcal also accepts date specs such as "all Friday{s} in October", "last
X * Thursday in all", etc., and produces the expected results; "each" and
X * "every" are accepted as synonyms for "all".
X *
X * The words "day", "weekday", "workday", and "holiday" may be used as
X * wildcards: "day" matches any day, "weekday" matches any day normally
X * printed in black, "workday" matches any day normally printed in black
X * and not explicitly flagged as a holiday, and "holiday" matches any
X * day explicitly flagged as a holiday. "Nonweekday", "nonworkday",
X * and "nonholiday" are also supported and have the obvious meanings.
X *
X * Additional notes may be propagated to an empty calendar box by the
X * inclusion of one or more lines of the form "note <month> <text>",
X * where <month> may be numeric or alphabetic; "note all <text>"
X * propagates <text> to each month in the current year.
X *
X * Simple cpp-like functionality is provided. The date file may include
X * the following commands, which work like their cpp counterparts:
X *
X * define <sym>
X * undef <sym>
X *
X * if{n}def <sym>
X * ...
X * { else
X * ... }
X * endif
X *
X * include <file>
X *
X * Note that these do not start with '#', which is reserved as a comment
X * character.
X *
X * "define" alone deletes all the current definitions; "ifdef" alone is
X * always false; "ifndef" alone is always true. All defined symbols are
X * treated in a case-insensitive manner.
X *
X * The file name in the "include" directive may optionally be surrounded
X * by "" or <>. In any case, path names are taken to be relative to
X * the location of the file containing the "include" directive.
X *
X */
X
X
/*
X * Standard headers:
X */
X
#include <stdio.h>
#include <ctype.h>
#include <time.h>
#include <string.h>
X
/*
X * Pcal-specific definitions:
X */
X
#include "pcaldefs.h"
X
/*
X * Global variables:
X */
X
/* forward references to functions */
X
int do_define(), do_ifdef(), do_ifndef(), do_include(), do_undef(),
X get_args(), ci_strcmp(), ci_strncmp(), find_sym(), get_token(),
X is_anyday(), is_weekday(), is_workday(), is_holiday(), not_weekday(),
X not_workday(), not_holiday(), enter_day_info(), get_month(),
X get_weekday(), get_keywd(), get_ordinal(), get_prep(), calc_weekday(),
X calc_day(), parse_ord(), parse_rel(), date_type(), is_valid(),
X loadwords(), parse_date(), parse(), getline();
void copy_text(), print_text(), def_footstring(), set_color(), read_datefile(),
X find_daytext(), find_holidays(), pmonth(), cleanup(), clear_syms(),
X usage(), copy_text(), print_text(), def_footstring(), set_color(),
X read_datefile(), find_daytext(), find_holidays(), pmonth();
char *trnlog(), *mk_path(), *mk_filespec(), *print_word();
year_info *find_year();
FLAG_USAGE *get_flag();
X
extern char *getenv();
X
year_info *head = NULL; /* head of internal data structure */
int nesting_level = 0; /* level of include file nesting */
int init_month; /* initial month, year, number of months */
int init_year;
int nmonths;
int curr_year; /* current default year for date file entries */
char *words[MAXWORD]; /* maximum number of words per date file line */
char lbuf[LINSIZ]; /* date file source line buffer */
char *pp_sym[MAX_PP_SYMS]; /* preprocessor defined symbols */
char progname[STRSIZ]; /* program name (for error messages) */
DATE dates[MAX_DATES+1]; /* array of dates - cf. parse_ord() */
X
/* lengths and offsets of months in common year */
static char month_len[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
static char month_off[12] = { 0, 3, 3, 6, 1, 4, 6, 2, 5, 0, 3, 5 };
X
/* moon style flags - cf. pcaldefs.h, pcalinit.ps */
static char *cond[3] = {"false", "true", "(some)"};
X
/* dispatch functions for wildcard matching - cf. pcaldefs.h */
int (*pdatefcn[])() = { is_anyday, is_weekday, is_workday, is_holiday,
X not_weekday, not_workday, not_holiday };
X
/*
X * Default values for command-line options:
X */
X
char day_color[7]; /* -b, -g */
X
int datefile_type = SYS_DATEFILE; /* -e, -f */
char datefile[STRSIZ] = "";
X
int rotate = ROTATE; /* -l, -p */
X
int draw_moons = DRAW_MOONS; /* -m, -M */
X
char dayfont[STRSIZ] = DAYFONT; /* -d, -t, -n */
char titlefont[STRSIZ] = TITLEFONT;
char notesfont[STRSIZ] = NOTESFONT;
X
char lfoot[STRSIZ] = LFOOT; /* -L, -C, -R */
char cfoot[STRSIZ] = CFOOT;
char rfoot[STRSIZ] = RFOOT;
X
int first_day_of_week = FIRST_DAY; /* -F */
X
int date_style = DATE_STYLE; /* -A, -E */
X
char outfile[STRSIZ] = OUTFILE; /* -o */
X
char xsval[12] = XSVAL; /* -x, -y, -X, -Y */
char ysval[12] = YSVAL;
char xtval[12] = XTVAL;
char ytval[12] = YTVAL;
X
int julian_dates = JULIAN_DATES; /* -j */
X
/*
X * Language-dependent strings:
X */
X
#include "pcallang.h"
X
/*
X * PostScript boilerplate:
X */
X
#include "pcalinit.h"
X
X
/*
X * Main program - parse and validate command-line arguments, open files,
X * generate PostScript boilerplate and code to generate calendars.
X *
X * Program structure:
X *
X * main() looks for the environment variable (global symbol on VMS) PCAL_OPTS
X * and calls get_args() to parse it. It then calls get_args() again to parse
X * the command line for the date file name, -D and -U options to be in effect
X * prior to reading the date file, and any numeric arguments (month, year,
X * number of months). It then calls read_datefile() to read and parse the
X * date file; any "opt" lines present will override the defaults for the
X * command-line flags. It then calls get_args() again to process the other
X * command-line flags, which in turn override any specified earlier.
X *
X * main() then generates the common PostScript code and then calls pmonth() to
X * print the calendars.
X *
X * read_datefile() calls getline() to read the date file, do_xxxxx() to process
X * the preprocessor tokens, and parse() to parse each date line.
X *
X * getline() reads one or more lines from the date file, stripping comments
X * (# through end-of-line) and ignoring blank lines.
X *
X * parse() parses a line from the date file and processes it. If "opt", it
X * calls loadwords() to split the line into tokens and get_args() to
X * process them. If the line contains "note" or a date, it calls
X * enter_day_info() to enter the day and related text into the data structure.
X *
X * pmonth() calls find_holidays() to generate the list of holidays to be
X * printed in gray; it then calls find_daytext() to generate the text to
X * be printed inside the calendar boxes.
X *
X */
main(argc, argv)
X int argc;
X char **argv;
{
X FILE *dfp = NULL; /* date file pointer */
X char *p, **ap;
X char default_dir[STRSIZ];
X int i, month, year, ngray;
X
#define DO_HEADER(phdr) for (ap = phdr; *ap; ap++) PRT("%s\n", *ap)
X
X INIT_COLORS; /* copy default_color to day_color */
X
X /* isolate root program name (for use in error messages) */
X
X strcpy(progname, **argv ? *argv : "pcal");
X
X if ((p = strrchr(progname, END_PATH)) != NULL)
X strcpy(progname, ++p);
X if ((p = strchr(progname, '.')) != NULL)
X *p = '\0';
X
X /*
X * Get the arguments from a) the environment variable, b) "opt" lines
X * in the date file, and c) the command line, in that order
X */
X
X /* parse environment variable PCAL_OPTS as a command line */
X
X if ((p = getenv(PCAL_OPTS)) != NULL) {
X strcpy(lbuf, "pcal "); /* dummy program name */
X strcat(lbuf, p);
X (void) loadwords(); /* split string into words */
X if (! get_args(words, P_ENV)) {
X usage(stderr, FALSE);
X exit(EXIT_FAILURE);
X }
X }
X
X /* parse command-line arguments once to find name of date file, etc. */
X
X if (!get_args(argv, P_CMD1)) {
X usage(stderr, FALSE);
X exit(EXIT_FAILURE);
X }
X
X /* Attempt to open the date file as specified by the [-e | -f] flags */
X
X switch (datefile_type) {
X case NO_DATEFILE:
X dfp = NULL;
X break;
X
X case USER_DATEFILE:
X /* Attempt to open user-specified calendar file */
X if ((dfp = fopen(datefile, "r")) == NULL) {
X FPR(stderr, E_FOPEN_ERR, progname, datefile);
X exit(EXIT_FAILURE);
X }
X break;
X
X case SYS_DATEFILE:
X /* Attempt to open system-specified calendar file */
X (p = trnlog(PCAL_DIR)) || (p = trnlog(HOME_DIR));
X strcpy(default_dir, p ? p : "");
X
X mk_filespec(datefile, default_dir, DATEFILE);
X dfp = fopen(datefile, "r"); /* no error if nonexistent */
#ifdef ALT_DATEFILE
X if (!dfp) { /* try again with alternate file */
X mk_filespec(datefile, default_dir, ALT_DATEFILE);
X dfp = fopen(datefile, "r");
X }
#endif
X break;
X }
X
X /* read the date file (if any) and build internal data structure */
X
X if (dfp) {
X curr_year = init_year;
X read_datefile(dfp, datefile);
X fclose(dfp);
X }
X
X /* reparse command line - flags there supersede those in date file */
X
X (void) get_args(argv, P_CMD2);
X
X /* done with the arguments and flags - try to open the output file */
X
X if (*outfile && freopen(outfile, "w", stdout) == (FILE *) NULL) {
X FPR(stderr, E_FOPEN_ERR, progname, outfile);
X exit(EXIT_FAILURE);
X }
X
X /*
X * Write out PostScript prolog
X */
X
X /* font names */
X
X PRT("%%!\n");
X PRT("/titlefont /%s def\n/dayfont /%s def\n/notesfont /%s def\n",
X titlefont, dayfont, notesfont);
X
X /* set offset from Sunday to selected first day of week */
X
X PRT("/dayoffset %d def\n", first_day_of_week);
X
X /* foot strings */
X
X def_footstring(lfoot, 'L');
X def_footstring(cfoot, 'C');
X def_footstring(rfoot, 'R');
X
X /* month names */
X
X PRT("/month_names [");
X for (i = JAN; i <= DEC; i++) {
X PRT(i % 6 == 1 ? "\n\t" : " ");
X (void) print_word(months[i-1]);
X }
X PRT(" ] def\n");
X
X /* day names */
X
X PRT("/day_names [");
X for (i = SUN; i <= SAT; i++) {
X PRT(i % 6 == 0 ? "\n\t" : " ");
X (void) print_word(days[(i + first_day_of_week) % 7]);
X }
X PRT(" ] def\n");
X
X /* colors (black/gray) to print weekdays and holidays */
X
X PRT("/day_gray [");
X for (ngray = 0, i = SUN; i <= SAT; ngray += day_color[i++] == GRAY)
X PRT(" %s", cond[day_color[(i + first_day_of_week) % 7]]);
X PRT(" ] def\n");
X PRT("/holiday_gray %s def\n", cond[ngray <= 3]);
X
X /* rotation, scale, and translate values. */
X
X PRT("/rval %d def\n", rotate);
X PRT("/xsval %s def\n/ysval %s def\n", xsval, ysval);
X PRT("/xtval %s def\n/ytval %s def\n", xtval, ytval);
X
X /* draw moons? */
X
X PRT("/draw-moons %s def\n", cond[draw_moons]);
X
X /* Julian dates? */
X
X PRT("/julian-dates %s def\n", cond[julian_dates]);
X
X /* PostScript boilerplate (part 1 of 1) */
X
X DO_HEADER(header);
X
X /*
X * Write out PostScript code to print calendars
X */
X
X month = init_month;
X year = init_year;
X
X while (nmonths--) {
X pmonth(month, year);
X if (++month > DEC) {
X month = JAN;
X year++;
X }
X }
X
X cleanup();
X
#ifdef VMS
X FPR(stderr, I_OUT_NAME, progname, outfile);
#endif
X exit(EXIT_SUCCESS);
}
X
/*
X * get_args - walk the argument list, parsing all arguments but processing only
X * those specified (in flag_tbl[]) to be processed this pass.
X */
int get_args(argv, curr_pass)
X char **argv; /* argument list */
X int curr_pass; /* current pass (P_xxx) */
{
X char *parg, *opt, *p;
X FLAG_USAGE *pflag, *pf;
X int i, flag;
X long tmp; /* for getting current month/year */
X struct tm *p_tm;
X int badopt = FALSE; /* flag set if bad param */
X int nargs = 0; /* count of non-flag args */
X int numargs[MAXARGS]; /* non-flag (numeric) args */
X
/*
X * If argument follows flag (immediately or as next parameter), return
X * pointer to it (and bump argv if necessary); else return NULL
X */
#define GETARG() (*(*argv + 2) ? *argv + 2 : \
X (*(argv+1) && **(argv+1) != '-' ? *++argv : NULL))
X
X /* Walk argument list, ignoring first element (program name) */
X
X while (opt = *++argv) {
X
X /* Assume that any non-flag argument is a numeric argument */
X if (*opt != '-') {
X if (curr_pass == P_CMD1 && nargs < MAXARGS) {
X if (! IS_NUMERIC(opt))
X goto bad_par;
X numargs[nargs++] = atoi(opt);
X }
X continue;
X }
X
X /* Check that flag is a) legal, and b) to be processed this pass */
X
X if (! (pflag = get_flag(flag = opt[1])) )
X goto bad_par;
X
X /* get optional argument even if flag not processed this pass */
X
X parg = pflag->has_arg ? GETARG() : NULL;
X
X if (! (pflag->passes & curr_pass)) /* skip flag this pass? */
X continue;
X
X switch (flag) {
X
X case F_INITIALIZE: /* reset all flags to defaults */
X
X /* set up a command line to reset all of the
X * flags; call get_args() recursively to parse it
X * (note that the Julian dates and moons must be
X * reset explicitly, as no flag exists to do so)
X */
X
X /* reset Julian dates and moons */
X julian_dates = JULIAN_DATES;
X draw_moons = DRAW_MOONS;
X
X /* select program default for landscape/portrait
X * mode and US/European date styles
X */
X sprintf(lbuf, "pcal -%c -%c",
#if (ROTATE == LANDSCAPE)
X F_LANDSCAPE,
#else
X F_PORTRAIT,
#endif
#if (DATE_STYLE == USA_DATES)
X F_USA_DATES);
#else
X F_EUR_DATES);
#endif
X p = lbuf + strlen(lbuf);
X
X /* all other flags take arguments and are reset
X * by specifying the flag without an argument
X */
X for (pf = flag_tbl; pf->flag; pf++)
X if ((pf->passes & curr_pass) && pf->has_arg) {
X sprintf(p, " -%c", pf->flag);
X p += strlen(p);
X }
X
X /* split new command line into words; parse it */
X (void) loadwords();
X (void) get_args(words, curr_pass);
X
X break;
X
X case F_BLACK_DAY: /* print day in black or gray */
X case F_GRAY_DAY:
X if (parg)
X set_color(parg, flag == F_BLACK_DAY ?
X BLACK : GRAY);
X else
X INIT_COLORS; /* reset to defaults */
X break;
X
X case F_DAY_FONT: /* specify alternate day font */
X strcpy(dayfont, parg ? parg : DAYFONT);
X break;
X
X case F_NOTES_FONT: /* specify alternate notes font */
X strcpy(notesfont, parg ? parg : NOTESFONT);
X break;
X
X case F_TITLE_FONT: /* specify alternate title font */
X strcpy(titlefont, parg ? parg : TITLEFONT);
X break;
X
X case F_EMPTY_CAL: /* generate empty calendar */
X datefile_type = NO_DATEFILE;
X strcpy(datefile, "");
X break;
X
X case F_DATE_FILE: /* specify alternate date file */
X datefile_type = parg ? USER_DATEFILE : SYS_DATEFILE;
X strcpy(datefile, parg ? parg : "");
X break;
X
X case F_OUT_FILE: /* specify alternate output file */
X strcpy(outfile, parg ? parg : OUTFILE);
X break;
X
X case F_LANDSCAPE: /* generate landscape calendar */
X rotate = LANDSCAPE;
X strcpy(xsval, XSVAL_L);
X strcpy(ysval, YSVAL_L);
X strcpy(xtval, XTVAL_L);
X strcpy(ytval, YTVAL_L);
X break;
X
X case F_PORTRAIT: /* generate portrait calendar */
X rotate = PORTRAIT;
X strcpy(xsval, XSVAL_P);
X strcpy(ysval, YSVAL_P);
X strcpy(xtval, XTVAL_P);
X strcpy(ytval, YTVAL_P);
X break;
X
X case F_HELP: /* request "help" message */
X FPR(stdout, "%s\n", VERSION_STRING + 4);
X usage(stdout, TRUE);
X exit(EXIT_SUCCESS);
X break;
X
X case F_MOON_4: /* draw four moons */
X case F_MOON_ALL: /* draw a moon for each day */
X draw_moons = flag == F_MOON_ALL ? ALL_MOONS : SOME_MOONS;
X break;
X
X case F_DEFINE: /* define preprocessor symbol */
X do_define(parg);
X break;
X
X case F_UNDEF: /* undef preprocessor symbol */
X do_undef(parg);
X break;
X
X case F_L_FOOT: /* specify alternate left foot */
X strcpy(lfoot, parg ? parg : LFOOT);
X break;
X
X case F_C_FOOT: /* specify alternate center foot */
X strcpy(cfoot, parg ? parg : CFOOT);
X break;
X
X case F_R_FOOT: /* specify alternate right foot */
X strcpy(rfoot, parg ? parg : RFOOT);
X break;
X
X case F_FIRST_DAY: /* select starting day of week */
X if (parg) {
X if ((i = get_weekday(parg, FALSE)) != NOT_WEEKDAY)
X first_day_of_week = i;
X }
X else
X first_day_of_week = FIRST_DAY;
X break;
X
X case F_USA_DATES: /* select American date style */
X case F_EUR_DATES: /* select European date style */
X date_style = flag == F_USA_DATES ? USA_DATES : EUR_DATES;
X break;
X
X case F_X_TRANS: /* set x-axis translation factor */
X strcpy(xtval, parg ? parg : (rotate == LANDSCAPE ?
X XTVAL_L : XTVAL_P));
X break;
X
X case F_Y_TRANS: /* set y-axis translation factor */
X strcpy(ytval, parg ? parg : (rotate == LANDSCAPE ?
X YTVAL_L : YTVAL_P));
X break;
X
X case F_X_SCALE: /* set x-axis scaling factor */
X strcpy(xsval, parg ? parg : (rotate == LANDSCAPE ?
X XSVAL_L : XSVAL_P));
X break;
X
X case F_Y_SCALE: /* set y-axis scaling factor */
X strcpy(ysval, parg ? parg : (rotate == LANDSCAPE ?
X YSVAL_L : YSVAL_P));
X break;
X
X case F_JULIAN:
X case F_JULIAN_ALL:
X julian_dates = flag == F_JULIAN_ALL ? ALL_JULIANS :
X SOME_JULIANS;
X break;
X
X case '-' : /* accept - and -- as dummy flags */
X case '\0':
X break;
X
X default: /* missing case label if reached!!! */
X
bad_par: /* unrecognized parameter */
X
X FPR(stderr, E_ILL_OPT, progname, opt);
X badopt = TRUE;
X break;
X }
X }
X
X if (curr_pass != P_CMD1)
X return !badopt; /* return TRUE if OK, FALSE if error */
X
X /* Validate non-flag (numeric) parameters */
X
X switch (nargs) {
X case 0: /* no arguments - print current month/year */
X time(&tmp);
X p_tm = localtime(&tmp);
X init_month = p_tm->tm_mon + 1;
X init_year = p_tm->tm_year;
X nmonths = 1;
X break;
X case 1: /* one argument - print entire year */
X init_month = JAN;
X init_year = numargs[0];
X nmonths = 12;
X break;
X default: /* two or three arguments - print one or more months */
X init_month = numargs[0];
X init_year = numargs[1];
X nmonths = nargs > 2 ? numargs[2] : 1;
X break;
X }
X
X if (nmonths < 1) /* ensure at least one month */
X nmonths = 1;
X
X /* check range of month and year */
X
X if (init_month < JAN || init_month > DEC) {
X FPR(stderr, E_ILL_MONTH, progname, init_month, JAN, DEC);
X badopt = TRUE;
X }
X
X if (init_year > 0 && init_year < 100) /* treat nn as 19nn */
X init_year += 1900;
X
X if (init_year < MIN_YR || init_year > MAX_YR) {
X FPR(stderr, E_ILL_YEAR, progname, init_year, MIN_YR, MAX_YR);
X badopt = TRUE;
X }
X
X return !badopt; /* return TRUE if OK, FALSE if error */
}
X
X
X
/*
X * color_msg - return character string explaining default day colors
X */
char *color_msg()
{
X int i, ngray = 0, others;
X static char msg[80];
X
X for (i = SUN; i <= SAT; i++) /* count gray weekdays */
X if (default_color[i] == GRAY)
X ngray++;
X
X if (ngray == 0 || ngray == 7) { /* all same color? */
X sprintf(msg, COLOR_MSG_1, ngray ? W_GRAY : W_BLACK);
X return msg;
X }
X
X others = ngray <= 3 ? BLACK : GRAY; /* no - get predominant color */
X msg[0] = '\0';
X for (i = SUN; i <= SAT; i++)
X if (default_color[i] != others) {
X strncat(msg, days[i], MIN_DAY_LEN);
X strcat(msg, "/");
X }
X LASTCHAR(msg) = ' ';
X
X sprintf(msg + strlen(msg), COLOR_MSG_2,
X others == BLACK ? W_GRAY : W_BLACK,
X others == BLACK ? W_BLACK : W_GRAY);
X return msg;
}
X
X
/*
X * usage - print message explaining correct usage of the command-line
X * arguments and flags. If "fullmsg" is true, print associated text
X */
void usage(fp, fullmsg)
X FILE *fp; /* destination of usage message */
X int fullmsg; /* print complete message? */
{
X FLAG_MSG *pflag;
X PARAM_MSG *ppar;
X DATE_MSG *pdate;
X char buf[30], *p, flag, *meta;
X int nchars, first, i, indent, n;
X
X sprintf(buf, "%s: %s", W_USAGE, progname);
X nchars = indent = strlen(buf);
X first = TRUE;
X FPR(fp, "\n%s", buf);
X
X /* loop to print command-line syntax message (by group of flags) */
X
X for (pflag = flag_msg; (flag = pflag->flag) != '\0'; pflag++) {
X if (flag == '\n') { /* end of group? */
X *p = '\0';
X if (meta) { /* append metavariable name */
X strcat(buf, " ");
X strcat(buf, meta);
X }
X strcat(buf, "]");
X n = strlen(buf);
X if (nchars + n > SCREENWIDTH) { /* does it fit on line? */
X FPR(fp, "\n"); /* no - start new one */
X for (nchars = 0; nchars < indent; nchars++)
X FPR(fp, " ");
X }
X FPR(fp, "%s", buf);
X nchars += n;
X first = TRUE;
X }
X else if (flag != ' ') { /* accumulate flags for group */
X if (first) {
X sprintf(buf, " [");
X p = buf + strlen(buf);
X }
X else
X *p++ = '|';
X *p++ = '-';
X *p++ = flag;
X meta = pflag->meta; /* save metavariable name */
X first = FALSE;
X }
X }
X
X /* loop to print selected numeric parameter descriptions */
X
X for (i = 0; i < PARAM_MSGS; i++) {
X sprintf(buf, " %s[%s]%s", i == 0 ? " " : "",
X param_msg[i].desc, i < PARAM_MSGS - 1 ? " |" : "");
X n = strlen(buf);
X if (nchars + n > SCREENWIDTH) { /* does it fit on line? */
X FPR(fp, "\n"); /* no - start new one */
X for (nchars = 0; nchars < indent; nchars++)
X FPR(fp, " ");
X }
X FPR(fp, "%s", buf);
X nchars += n;
X }
X
X FPR(fp, "\n\n");
X if (! fullmsg) {
X FPR(fp, USAGE_MSG, progname, F_HELP);
X return;
X }
X
X /* loop to print the full flag descriptions */
X
X for (pflag = flag_msg; (flag = pflag->flag) != '\0'; pflag++) {
X if (flag == '\n') { /* newline? print and quit */
X FPR(fp, "\n");
X continue;
X }
X p = buf; /* copy flag and metavariable to buffer */
X if (flag != ' ')
X *p++ = '-';
X /* special hack for VMS - surround upper-case flags in quotes */
#ifdef VMS
X if (isupper(flag)) {
X *p++ = '"';
X *p++ = flag;
X *p++ = '"';
X }
X else
X *p++ = flag;
#else
X *p++ = flag;
#endif
X *p = '\0';
X if (pflag->meta)
X sprintf(p, " <%s>", pflag->meta);
X FPR(fp, "\t%-16.16s", buf);
X if (pflag->text)
X FPR(fp, "%s", pflag->text);
X
X /* print default value if specified */
X if (pflag->def)
X FPR(fp, " (%s: %s)", W_DEFAULT, pflag->def[0] ? pflag->def : "\"\"" );
X FPR(fp, "\n");
X
X /* special case - print color messages after F_GRAY_DAY */
X if (flag == F_GRAY_DAY)
X FPR(fp, "\t\t\t (%s: %s)\n", W_DEFAULT, color_msg());
X
X }
X
X /* now print the information about the numeric parameters */
X
X for (ppar = param_msg; ppar->desc; ppar++)
X FPR(fp, "\t%-16.16s%s\n", ppar->desc, ppar->text);
X
X /* print the date file syntax message */
X
X FPR(fp, "\n");
X for (pdate = date_msg; *pdate; pdate++)
X FPR(fp, "\t%s\n", *pdate);
X
}
X
X
/*
X * General-purpose utility routines
X */
X
X
/*
X * alloc - interface to calloc(); terminates if unsuccessful
X */
char *alloc(size)
X int size;
{
X char *p;
X extern char *calloc();
X
X if (size == 0) /* not all calloc()s like null requests */
X size = 1;
X
X if ((p = calloc(1, size)) == NULL) {
X FPR(stderr, E_ALLOC_ERR, progname);
X exit(EXIT_FAILURE);
X }
X
X return p;
}
X
X
/*
X * ci_str{n}cmp - case-insensitive flavors of strcmp(), strncmp()
X */
int ci_strcmp(s1, s2)
register char *s1, *s2;
{
X register char c1, c2;
X
X for ( ; (c1 = TOLOWER(*s1)) == (c2 = TOLOWER(*s2)); s1++, s2++)
X if (c1 == '\0')
X return 0;
X
X return c1 - c2;
}
X
X
int ci_strncmp(s1, s2, n)
register char *s1, *s2;
int n;
{
X register char c1, c2;
X
X for ( ; --n >= 0 && (c1 = TOLOWER(*s1)) == (c2 = TOLOWER(*s2)); s1++, s2++)
X if (c1 == '\0')
X return 0;
X
X return n < 0 ? 0 : c1 - c2;
}
X
X
/*
X * Preprocessor token and symbol table routines
X */
X
X
/*
X * find_sym - look up symbol; return symbol table index if found, PP_SYM_UNDEF
X * if not found
X */
int find_sym(sym)
X char *sym;
{
X int i;
X
X if (!sym)
X return PP_SYM_UNDEF;
X
X for (i = 0; i < MAX_PP_SYMS; i++)
X if (pp_sym[i] && ci_strcmp(pp_sym[i], sym) == 0)
X return i;
X
X return PP_SYM_UNDEF;
}
X
X
/*
X * do_ifdef - return TRUE if 'sym' is currently defined; FALSE if not
X */
int do_ifdef(sym)
X char *sym;
{
X return find_sym(sym) != PP_SYM_UNDEF;
}
X
X
/*
X * do_ifndef - return FALSE if 'sym' is currently defined; TRUE if not
X */
int do_ifndef(sym)
X char *sym;
{
X return find_sym(sym) == PP_SYM_UNDEF;
}
X
X
/*
X * do_define - enter 'sym' into symbol table; if 'sym' NULL, clear symbol table.
X * Always returns 0 (for compatibility with other dispatch functions).
X */
int do_define(sym)
X char *sym;
{
X int i;
X
X if (! sym) { /* null argument - clear all definitions */
X clear_syms();
X return 0;
X }
X
X if (do_ifdef(sym)) /* already defined? */
X return 0;
X
X for (i = 0; i < MAX_PP_SYMS; i++) /* find room for it */
X if (! pp_sym[i]) {
X strcpy(pp_sym[i] = alloc(strlen(sym)+1), sym);
X return 0;
X }
X
X FPR(stderr, E_SYMFULL, progname, sym);
X return 0;
}
X
X
/*
X * do_undef - undefine 'sym' and free its space; no error if not defined.
X * Always return 0 (for compatibility with other dispatch fcns).
X */
int do_undef(sym)
X char *sym;
{
X int i;
X
X if (! sym)
X return 0;
X
X if ((i = find_sym(sym)) != PP_SYM_UNDEF) {
X free(pp_sym[i]);
X pp_sym[i] = NULL;
X }
X
X return 0;
}
X
X
/*
X * do_include - include specified file (optionally in "" or <>); always
X * returns 0 (for compatibility with related functions returning int)
X */
int do_include(path, name)
X char *path; /* path to file */
X char *name; /* file name */
{
X FILE *fp;
X char *p, incfile[STRSIZ], tmpnam[STRSIZ];
X
X if (! name) /* whoops, no date file */
X return 0;
X
X /* copy name, stripping "" or <> */
X strcpy(tmpnam, name + (*name == '"' || *name == '<'));
X if ((p = P_LASTCHAR(tmpnam)) && *p == '"' || *p == '>')
X *p = '\0';
X
X if ((fp = fopen(mk_filespec(incfile, path, tmpnam), "r")) == NULL) {
X FPR(stderr, E_FOPEN_ERR, progname, incfile);
X exit(EXIT_FAILURE);
X }
X
X read_datefile(fp, incfile);
X fclose(fp);
X
X return 0;
}
X
X
/*
X * get_token - look up 'token' in list of preprocessor tokens; return its
X * index if found, PP_OTHER if not
X */
int get_token(token)
X char *token;
{
X KWD_F *p;
X
X for (p = pp_info;
X p->name && ci_strncmp(token, p->name, MIN_PPTOK_LEN);
X p++)
X ;
X
X return p->code;
}
X
X
/*
X * get_flag() - look up flag in flag_tbl; return pointer to its entry
X * (NULL if not found)
X */
FLAG_USAGE *get_flag(flag)
X char flag;
{
X FLAG_USAGE *pflag;
X
X for (pflag = flag_tbl; pflag->flag; pflag++)
X if (flag == pflag->flag)
X return pflag;
X
X return flag ? NULL : pflag; /* '\0' is a valid flag */
}
X
X
/*
X * Internal data structure routines
X */
X
X
/*
X * find_year - find record in year list; optionally create if not present
X */
year_info *find_year(year, insert) /* find record in year list */
X int year;
X int insert; /* insert if missing */
{
X year_info *pyear, *plast, *p;
X
X for (plast = NULL, pyear = head; /* search linked list */
X pyear && pyear->year < year;
X plast = pyear, pyear = pyear->next)
X ;
X
X if (pyear && pyear->year == year) /* found - return it */
X return pyear;
X
X if (insert) { /* not found - insert it if requested */
X p = (year_info *) alloc((int) sizeof(year_info)); /* create new record */
X p->year = year;
X
X p->next = pyear; /* link it in */
X return *(plast ? &plast->next : &head) = p;
X }
X else
X return NULL;
}
X
X
/*
X * enter_day_info - enter text for specified day; avoid entering duplicates.
X * returns PARSE_INVDATE if date invalid, PARSE_OK if OK
X */
int enter_day_info(m, d, y, text_type, pword) /* fill in information for given day */
X int m, d, y;
X int text_type;
X char **pword;
{
X static year_info *pyear;
X static int prev_year = 0;
X month_info *pmonth;
X day_info *pday, *plast;
X int is_holiday = text_type == HOLIDAY_TEXT;
X char text[LINSIZ];
X
X if (! is_valid(m, d == NOTE_DAY && text_type == NOTE_TEXT ? 1 : d, y))
X return PARSE_INVDATE;
X
X if (y != prev_year) /* avoid unnecessary year lookup */
X pyear = find_year(y, 1);
X
X --m, --d; /* adjust for use as subscripts */
X
X if ((pmonth = pyear->month[m]) == NULL) /* find/create month record */
X pyear->month[m] = pmonth = (month_info *) alloc((int) sizeof(month_info));
X
X if (is_holiday)
X pmonth->holidays |= (1 << d);
X
X /* insert text for day at end of list (preserving the order of entry
X * for multiple lines on same day); eliminate those differing only
X * in spacing and capitalization from existing entries
X */
X
X copy_text(text, pword); /* consolidate text from lbuf into text */
X
X if (*text) {
X for (plast = NULL, pday = pmonth->day[d];
X pday;
X plast = pday, pday = pday->next)
X if (ci_strcmp(pday->text, text) == 0) {
X pday->is_holiday |= is_holiday;
X return PARSE_OK;
X }
X
X /* unique - add to end of list */
X
X pday = (day_info *) alloc(sizeof(day_info));
X pday->is_holiday = is_holiday;
X strcpy(pday->text = (char *) alloc(strlen(text)+1), text);
X pday->next = NULL;
X *(plast ? &plast->next : &pmonth->day[d]) = pday;
X }
X
X return PARSE_OK;
}
X
X
/*
X * Housekeeping routines to free allocated data
X */
X
X
/*
X * clear_syms - clear and deallocate the symbol table
X */
void clear_syms()
{
X int i;
X
X for (i = 0; i < MAX_PP_SYMS; i++)
X if (pp_sym[i]) {
X free(pp_sym[i]);
X pp_sym[i] = NULL;
X }
}
X
X
/*
X * cleanup - free all allocated data
X */
void cleanup()
{
X int i, j;
X year_info *py, *pny;
X month_info *pm;
X day_info *pd, *pnd;
X
X for (py = head; py; py = pny) { /* main data structure */
X pny = py->next;
X for (i = 0; i < 12; i++) {
X if ((pm = py->month[i]) == NULL)
X continue;
X for (j = 0; j < NOTE_DAY; j++)
X for (pd = pm->day[j]; pd; pd = pnd) {
X pnd = pd->next;
X free(pd->text);
X free(pd);
X }
X free(pm);
X }
X free(py);
X }
X
X clear_syms(); /* symbol table */
X
}
X
X
/*
X * Utility routines for date and text parsing and entry
X */
X
/*
X * get_month - convert alpha (or, optionally, numeric) string to month; return
X * 1..12 if valid, NOT_MONTH if not, ALL_MONTHS if "all"
X */
int get_month(cp, numeric_ok)
X char *cp; /* string to convert */
X int numeric_ok; /* accept numeric string ? */
{
X int mm;
X
X if (! cp)
X return NOT_MONTH;
X
X if (get_keywd(cp) == DT_ALL)
X return ALL_MONTHS;
X
X if (numeric_ok && isdigit(*cp))
X mm = atoi(cp);
X else
X for (mm = JAN;
X mm <= DEC && ci_strncmp(cp, months[mm-1], MIN_MONTH_LEN);
X mm++)
X ;
X
X return mm >= JAN && mm <= DEC ? mm : NOT_MONTH;
}
X
X
/*
X * get_weekday - look up string in weekday list; return 0-6 if valid,
X * NOT_WEEKDAY if not. If wild_ok flag is set, accept "day", "weekday",
X * "workday", or "holiday" and return appropriate value.
X */
int get_weekday(cp, wild_ok)
X char *cp;
X int wild_ok;
{
X int w;
X
X if (!cp)
X return NOT_WEEKDAY;
X
X if (wild_ok) { /* try wildcards first */
X for (w = WILD_FIRST; w <= WILD_LAST; w++)
X if (ci_strncmp(cp, days[w], strlen(days[w])) == 0)
X return w;
X }
X
X for (w = SUN; w <= SAT; w++)
X if (ci_strncmp(cp, days[w], MIN_DAY_LEN) == 0)
X return w;
X
X return NOT_WEEKDAY;
}
X
X
/*
X * get_keywd - look up string in misc. keyword list; return keyword code
X * if valid, DT_OTHER if not
X */
int get_keywd(cp)
X char *cp;
{
X KWD *k;
X
X if (!cp)
X return DT_OTHER;
X
X for (k = keywds;
X k->name && ci_strncmp(cp, k->name, strlen(k->name));
X k++)
X ;
X
X return k->code;
}
X
X
/*
X * get_ordinal - look up string in ordinal list; return ordinal code if valid,
X * ORD_OTHER if not
X */
int get_ordinal(cp)
X char *cp;
{
X KWD *o;
X
X if (!cp)
X return ORD_OTHER;
X
X for (o = ordinals; o->name && ci_strncmp(cp, o->name, MIN_ORD_LEN); o++)
X ;
X
X return o->code;
}
X
X
/*
X * get_prep - look up string in preposition list; return preposition code if
X * valid, PR_OTHER if not
X */
int get_prep(cp)
X char *cp;
{
X KWD *p;
X
X if (!cp)
X return PR_OTHER;
X
X for (p = preps; p->name && ci_strncmp(cp, p->name, MIN_PREP_LEN); p++)
X ;
X
X return p->code;
}
X
X
/*
X * calc_weekday - return the weekday (0-6) of mm/dd/yy (mm: 1-12)
X */
int calc_weekday(mm, dd, yy)
X int mm;
X int dd;
X int yy;
{
X return (yy + (yy-1)/4 - (yy-1)/100 + (yy-1)/400 + OFFSET_OF(mm, yy) + (dd-1)) % 7;
}
X
X
X
/*
X * Dispatch functions for wildcard matching
X */
X
X
/*
X * is_anyday - dummy function which always returns TRUE
X */
int is_anyday(mm, dd, yy)
X int mm;
X int dd;
X int yy;
{
X return TRUE;
}
X
X
/*
X * is_weekday - determine whether or not mm/dd/yy is a weekday (i.e., the
X * day of the week normally prints in black)
X */
int is_weekday(mm, dd, yy)
X int mm;
X int dd;
X int yy;
{
X return day_color[calc_weekday(mm, dd, yy)] == BLACK;
}
X
X
/*
X * is_workday - determine whether or not mm/dd/yy is a workday (i.e., the
X * day of the week normally prints in black and the date is not a holiday)
X */
int is_workday(mm, dd, yy)
X int mm;
X int dd;
X int yy;
{
X return is_weekday(mm, dd, yy) && ! is_holiday(mm, dd, yy);
}
X
X
/*
X * is_holiday - determine whether or not mm/dd/yy is a holiday
X */
int is_holiday(mm, dd, yy)
X int mm;
X int dd;
X int yy;
{
X year_info *py;
X month_info *pm;
X
X pm = (py = find_year(yy, FALSE)) ? py->month[mm-1] : NULL;
X return pm ? (pm->holidays & (1 << (dd-1))) != 0 : FALSE;
}
X
X
/*
X * not_XXXXX - converses of is_XXXXX above
X */
int not_weekday(mm, dd, yy)
X int mm, dd, yy;
{
X return !is_weekday(mm, dd, yy);
}
X
X
int not_workday(mm, dd, yy)
X int mm, dd, yy;
{
X return !is_workday(mm, dd, yy);
}
X
X
int not_holiday(mm, dd, yy)
X int mm, dd, yy;
{
X return !is_holiday(mm, dd, yy);
}
X
X
X
/*
X * normalize - adjust day in case it has crossed month (or year) bounds
X */
void normalize(pd)
X DATE *pd; /* pointer to date */
{
X int len;
X
X if (pd->dd <= 0) { /* day in previous month? */
X if (--pd->mm < JAN) {
X pd->mm = DEC;
X pd->yy--;
X }
X pd->dd += LENGTH_OF(pd->mm, pd->yy);
X }
X else { /* day in following month? */
X len = LENGTH_OF(pd->mm, pd->yy);
X if (pd->dd > len) {
X pd->dd -= len;
X if (++pd->mm > DEC) {
X pd->mm = JAN;
X pd->yy++;
X }
X }
X }
}
X
X
/*
X * calc_day - calculate calendar date from ordinal date (e.g., "first Friday
X * in November", "last day in October"); return calendar date if it exists,
X * 0 if it does not
X */
int calc_day(ord, wkd, mm)
X int ord;
X int wkd;
X int mm;
{
X int first, last, day, (*pfcn)();
X
X if (IS_WILD(wkd)) { /* "day", "weekday", "workday", or "holiday" */
X pfcn = pdatefcn[wkd - ANY_DAY];
X last = LENGTH_OF(mm, curr_year);
X
X if (ord == ORD_LAST) {
X for (day = last;
X day >= 1 && !(*pfcn)(mm, day, curr_year);
X day--)
X ;
X } else {
X for (day = 1;
X day <= last &&
X !((*pfcn)(mm, day, curr_year) && --ord == 0);
X day++)
X ;
X }
X return is_valid(mm, day, curr_year) ? day : 0;
X
X } else {
X first = (wkd - calc_weekday(mm, 1, curr_year) + 7) % 7 + 1;
X if (ord == ORD_LAST) { /* try 5th, then 4th */
X if (! is_valid(mm, day = first + 28, curr_year))
X day -= 7;
X }
X else
X if (!is_valid(mm, day = first + 7 * (ord-1), curr_year))
X day = 0;
X
X return day;
X }
X
}
X
X
/*
X * parse_ord - parse an ordinal date spec (e.g. "first Monday in September",
X * "every Sunday in October", "last workday in all"); return PARSE_OK if line
X * syntax valid, PARSE_INVLINE if not. Write all matching dates (if any) to
X * global array dates[]; terminate date list with null entry.
X */
int parse_ord(ord, pword)
X int ord; /* valid ordinal code - from get_ordinal() */
X char **pword; /* pointer to word after ordinal */
{
X int wkd, mm, dd, len, (*pfcn)();
X int ord_first, ord_last, mon_first, mon_last;
X DATE *pdate;
X
X if ((wkd = get_weekday(*pword, TRUE)) == NOT_WEEKDAY || /* weekday */
X *++pword == NULL || /* any word */
X (mm = get_month(*++pword, FALSE)) == NOT_MONTH) /* month */
X return PARSE_INVLINE;
X
X /* set up loop boundaries */
X ord_first = ord == ORD_ALL ? ORD_FIRST : ord;
X ord_last = ord == ORD_ALL ? ORD_FIFTH : ord;
X mon_first = mm == ALL_MONTHS ? JAN : mm;
X mon_last = mm == ALL_MONTHS ? DEC : mm;
X
X if (ord == ORD_ALL && IS_WILD(wkd)) {
X /* special case of "all day{s} in ..." */
X pfcn = pdatefcn[wkd - ANY_DAY];
X for (pdate = dates, mm = mon_first; mm <= mon_last; mm++) {
X len = LENGTH_OF(mm, curr_year);
X for (dd = 1; dd <= len; dd++)
X if ((*pfcn)(mm, dd, curr_year))
X ADD_DATE(mm, dd, curr_year);
X }
X }
X else {
X /* all other combinations of ordinal and day */
X for (pdate = dates, mm = mon_first; mm <= mon_last; mm++)
X for (ord = ord_first; ord <= ord_last; ord++)
X if ((dd = calc_day(ord, wkd, mm)) != 0)
X ADD_DATE(mm, dd, curr_year);
X
X }
X
X TERM_DATES; /* terminate array with null entry */
X return PARSE_OK;
X
}
X
X
/*
X * parse_rel - parse a relative date spec (e.g. "Friday after fourth Thursday
X * in November", "Saturday after first Friday in all"; return PARSE_OK if
X * line syntax valid, PARSE_INVLINE if not. Transform all dates that match
X * the base date to the appropriate day, month, and year.
X */
int parse_rel(wkd, pword, ptype, pptext)
X int wkd; /* valid weekday code - from get_weekday() */
X char **pword; /* pointer to word after weekday */
X int *ptype; /* return text type (holiday/non-holiday) */
X char ***pptext; /* return pointer to first word of text */
{
X int prep, rtn, base_wkd, incr, (*pfcn)();
X DATE *pd;
X
X /* we have the weekday - now look for the preposition */
X if ((prep = get_prep(*pword++)) == PR_OTHER)
X return PARSE_INVLINE;
X
X /* get the base date */
X if ((rtn = parse_date(pword, ptype, pptext)) != PARSE_OK)
X return rtn;
X
X /* transform date array in place - note that the relative date may
X not be in the same month or even year */
X
X if (IS_WILD(wkd)) { /* wildcard for weekday name? */
X pfcn = pdatefcn[wkd - ANY_DAY];
X incr = prep == PR_BEFORE || prep == PR_ON_BEFORE ? -1 : 1;
X
X for (pd = dates; pd->mm; pd++) {
X if (prep == PR_BEFORE || prep == PR_AFTER) {
X pd->dd += incr;
X normalize(pd);
X }
X while (!(*pfcn)(pd->mm, pd->dd, pd->yy)) {
X pd->dd += incr;
X normalize(pd);
X }
X }
X
X } else { /* explicit weekday name */
X for (pd = dates; pd->mm; pd++) {
X base_wkd = calc_weekday(pd->mm, pd->dd, pd->yy);
X
X if (prep == PR_BEFORE ||
X (prep == PR_ON_BEFORE && wkd != base_wkd))
X pd->dd -= 7 - (wkd - base_wkd + 7) % 7;
X
X if (prep == PR_AFTER ||
X (prep == PR_ON_AFTER && wkd != base_wkd))
X pd->dd += (wkd - base_wkd + 6) % 7 + 1;
X
X normalize(pd); /* adjust for month/year crossing */
X }
X }
X
X return PARSE_OK;
}
X
X
/*
X * date_type - examine token and return date type code; if DT_MONTH, DT_ORDINAL,
X * or DT_WEEKDAY, fill in appropriate code
X */
int date_type(cp, pn)
X char *cp; /* pointer to start of token */
X int *pn; /* numeric value (returned) */
{
X int n;
X
X if ((n = get_ordinal(cp)) != ORD_OTHER) /* ordinal? */
X return (*pn = n, DT_ORDINAL);
X
X if (isdigit(*cp)) /* other digit? */
X return IS_NUMERIC(cp) ? DT_EURDATE : DT_DATE;
X
X if ((n = get_weekday(cp, TRUE)) != NOT_WEEKDAY) /* weekday name? */
X return (*pn = n, DT_WEEKDAY);
X
X /* "all" can be either a keyword or a month wildcard - look for
X the former usage first */
X
X if ((n = get_keywd(cp)) != DT_OTHER)
X return n;
X
X if ((n = get_month(cp, FALSE)) != NOT_MONTH) /* month name? */
X return (*pn = n, DT_MONTH);
X
X return DT_OTHER; /* unrecognized keyword - give up */
X
}
X
X
/*
X * is_valid - return TRUE if m/d/y is a valid date
X */
int is_valid(m, d, y)
X register int m, d, y;
{
X return m >= JAN && m <= DEC &&
X d >= 1 && d <= LENGTH_OF(m, y);
}
X
X
/*
X * loadwords - tokenize line buffer into word array, return word count.
X * differs from old loadwords() in that it handles quoted (" or ') strings
X */
X
int loadwords()
{
X register char *pstr, *ptok;
X char *delim, **ap;
X
X pstr = lbuf;
X
X for (ap = words; TRUE; ap++) {
X delim = *pstr == '"' ? "\"" :
X *pstr == '\'' ? "'" :
X WHITESPACE;
X
X ptok = pstr += strspn(pstr, delim); /* look for next token */
X
X if (! *pstr) { /* end of lbuf? */
X *ap = NULL; /* add null ptr at end */
X return ap - words; /* number of non-null ptrs */
X }
X
X if (*ptok == '"' || *ptok == '\'') /* bump past quote */
X ptok++;
X
X *ap = ptok; /* save token ptr */
X
X pstr += strcspn(pstr, delim); /* skip past token */
X
X if (*pstr) /* terminate token */
X *pstr++ = '\0';
X }
X
}
X
X
/*
X * copy_text - retrieve remaining text in lbuf and copy to output string,
X * removing leading/trailing whitespace and condensing runs of whitespace to a
X * single blank
X */
void copy_text(pbuf, ptext)
X char *pbuf; /* output buffer */
X char **ptext; /* pointer to first text word in "words" */
{
X char *p;
X
X /* copy words to pbuf, separating by one blank */
X
X for (*pbuf = '\0'; p = *ptext; *pbuf++ = *++ptext ? ' ' : '\0')
X while (*p)
X *pbuf++ = *p++;
X
}
X
X
/*
X * print_word - print a single word, representing parentheses and non-ASCII
X * characters as octal literals; return pointer to character following word
X * (NULL if no word follows)
X */
char *print_word(p)
X char *p;
{
X char c;
X
X if (*p == '\0' || *(p += strspn(p, WHITESPACE)) == '\0')
X return NULL;
X
X PRT("(");
X for ( ; (c = *p) && !isspace(c); p++)
X PUTCHAR(c);
X PRT(")");
X
X return p;
}
X
X
/*
X * print_text - print tokens in text (assumed separated by single blank)
X * in PostScript format
X */
void print_text(p)
X char *p;
{
X
X while (p = print_word(p))
X PRT("\n");
}
X
X
/*
X * def_footstring - print definition for foot string, again converting '('
X * or ')' to octal escape
X */
void def_footstring(p, c)
X char *p; /* definition */
X char c; /* L, C, or R */
{
X
X PRT("/%cfootstring (", c);
X for ( ; c = *p; p++)
X PUTCHAR(c);
X PRT(") def\n");
}
X
X
/*
X * set_color - set one or all weekdays to print in black or gray
X */
void set_color(day, col)
X char *day; /* weekday name (or "all") */
X int col; /* select black or gray */
{
X int i;
X
X if (ci_strncmp(day, ALL, strlen(ALL)) == 0) /* set all days */
X for (i = 0; i < 7; i++)
X day_color[i] = col;
X else /* set single day */
X if ((i = get_weekday(day, FALSE)) != NOT_WEEKDAY)
X day_color[i] = col;
X
}
X
X
/*
X * parse_date - parse a date specification in any of its myriad forms; upon
X * return, array dates[] will contain a list of all the dates that matched,
X * terminated by a null entry. Also fill in the date type (holiday/non-
X * holiday) code and the pointer to the first word of text.
X */
int parse_date(pword, ptype, pptext)
X char **pword; /* first word to parse */
X int *ptype; /* return date type (holiday/non-holiday) */
X char ***pptext; /* return pointer to first word of text */
{
X int mm, dd, yy;
X int token, n, ord, wkd, rtn;
X DATE *pdate;
X char *cp;
X
#define SKIP_FIELD(p) \
X if (1) {while (isdigit(*p)) p++; while (*p && !isdigit(*p)) p++;} else
X
X pdate = dates;
X
X switch (token = date_type(*pword, &n)) {
X
X case DT_MONTH: /* <month> dd */
X if (date_style != USA_DATES)
X return PARSE_INVLINE;
X
X if ((cp = *++pword) == NULL)
X return PARSE_INVLINE;
X
X ADD_DATE(n, atoi(cp), curr_year);
X TERM_DATES;
X
X break;
X
X case DT_DATE: /* mm/dd{/yy} | dd/mm{/yy} */
X cp = *pword;
X
X /* extract month and day fields */
X
X *(date_style == USA_DATES ? &mm : &dd) = atoi(cp);
X SKIP_FIELD(cp);
X
X *(date_style == USA_DATES ? &dd : &mm) = atoi(cp);
X SKIP_FIELD(cp);
X
X /* Numeric dates may (or may not) have a year */
X
X if ((yy = atoi(cp)) > 0) {
X if (yy < 100)
X yy += 1900;
X curr_year = yy; /* if present, reset current year */
X }
X
X ADD_DATE(mm, dd, curr_year);
X TERM_DATES;
X
X break;
X
X case DT_EURDATE: /* dd [ <month> | "all" ] */
X if (date_style != EUR_DATES)
X return PARSE_INVLINE;
X
X dd = atoi(*pword);
X
X if (get_keywd(*++pword) == DT_ALL) {
X for (mm = JAN; mm <= DEC; mm++) /* wildcard */
X ADD_DATE(mm, dd, curr_year);
X }
X else { /* one month */
X if ((mm = get_month(*pword, FALSE)) == NOT_MONTH)
X return PARSE_INVLINE;
X
X ADD_DATE(mm, dd, curr_year);
X }
X
X TERM_DATES;
X break;
X
X case DT_ALL: /* "all" <weekday> "in" [ <month> | "all" ] */
X /* or "all" <day>" */
X
X if ((cp = *(pword+1)) && (*(cp += strspn(cp, DIGITS)) == '\0' ||
X *cp == '*')) {
X dd = atoi(*++pword); /* "all" <day> */
X for (mm = JAN; mm <= DEC; mm++)
X ADD_DATE(mm, dd, curr_year);
X TERM_DATES;
X break; /* leave switch */
X }
X
X n = ORD_ALL; /* select all ordinals; fall through */
X
X case DT_ORDINAL: /* <ordinal> <weekday> in [ <month> | "all" ] */
X ord = n;
X if ((rtn = parse_ord(ord, pword + 1)) != PARSE_OK)
X return rtn;
X
X pword += 3; /* last word of date */
X break;
X
X case DT_WEEKDAY: /* <weekday> <prep> <date> */
X wkd = n;
X
X /* parse_rel() calls parse_date() recursively */
X return parse_rel(wkd, ++pword, ptype, pptext);
X break;
X
X default:
X return PARSE_INVLINE;
X break;
X }
X
X /* at this point, pword points to the last component of the date;
X * fill in type code and pointer to following word (start of text)
X */
X *ptype = LASTCHAR(*pword) == '*' ? HOLIDAY_TEXT : DAY_TEXT;
X *pptext = ++pword;
X
X return PARSE_OK;
}
X
/*
X * parse - enter date file data (in lbuf[]) into data structure
X *
X * Enters information for year, month, and day into data structure for
X * subsequent retrieval. Lines of form "opt <options>" override any
X * defaults.
X *
X * N.B.: "inc" and other cpp-like lines are handled in read_datefile().
X *
X */
int parse(pword)
X char **pword; /* pointer to first word to parse */
{
X register char *cp;
X char **ptext;
X int mm, yy;
X int text_type, n, rtn, match;
X int token;
X DATE *pd;
X
X /*
X * Get first field and call date_type() to decode it
X */
X cp = *pword;
X
X switch (token = date_type(cp, &n)) {
X
X case DT_YEAR:
X if ((cp = *++pword) != NULL && (yy = atoi(cp)) > 0) {
X if (yy < 100)
X yy += 1900;
X curr_year = yy;
X return PARSE_OK;
X }
X return PARSE_INVLINE; /* year missing or non-numeric */
X break;
X
X case DT_OPT:
X if (!get_args(pword, P_OPT)) {
X usage(stderr, FALSE);
X exit(EXIT_FAILURE);
X }
X return PARSE_OK;
X break;
X
X case DT_NOTE:
X if ((mm = get_month(*++pword, TRUE)) == NOT_MONTH)
X return PARSE_INVLINE;
X
X if (mm == ALL_MONTHS) /* "note all"? */
X for (mm = JAN; mm <= DEC; mm++)
X enter_day_info(mm, NOTE_DAY, curr_year,
X NOTE_TEXT, pword+1);
X else
X enter_day_info(mm, NOTE_DAY, curr_year, NOTE_TEXT,
X pword+1);
X
X return PARSE_OK;
X break;
X
X case DT_OTHER: /* unrecognized token */
X return PARSE_INVLINE;
X break;
X
X /* assume anything else is a date */
X
X default:
X if ((rtn = parse_date(pword, &text_type, &ptext)) == PARSE_OK) {
X match = FALSE; /* is at least one date valid? */
X for (pd = dates; pd->mm; pd++)
X match |= enter_day_info(pd->mm, pd->dd, pd->yy,
X text_type, ptext) == PARSE_OK;
X rtn = match ? PARSE_OK : PARSE_INVDATE;
X }
X return rtn;
X break;
X
X }
}
X
X
/*
X * getline - read next non-null line of input file into lbuf; return 0 on EOF
X */
int getline(dfp, pline)
X FILE *dfp;
X int *pline;
{
X register char *cp;
X register int c;
X int in_comment; /* comments: from '#' to end-of-line */
X
X cp = lbuf;
X do {
X in_comment = FALSE;
X while ((c = getc(dfp)) != '\n' && c != EOF) {
X if (c == '#')
X in_comment = TRUE;
X
X /* ignore comments and leading white space */
X if (in_comment ||
X (cp == lbuf && (c == ' ' || c == '\t')))
X continue;
X *cp++ = c;
X }
X if (c == EOF)
X return FALSE;
X
X (*pline)++; /* bump line number */
X
X } while (cp == lbuf); /* ignore empty lines */
X
X *cp = '\0';
X return TRUE;
}
X
X
/*
X * read_datefile - read and parse date file, handling preprocessor lines
X */
void read_datefile(fp, filename)
X FILE *fp; /* file pointer (assumed open) */
X char *filename; /* file name (for error messages) */
{
X static int file_level = 0;
X int if_level = 0;
X int restart_level = 0;
X int line = 0;
X int processing = TRUE;
X
X int pptype, extra, ntokens, save_year;
X int (*pfcn)();
X char *ptok;
X char **pword;
X char msg[STRSIZ], incpath[STRSIZ];
X
#define ERR(errmsg) FPR(stderr, E_ILL_LINE, progname, errmsg, filename, line);
X
X if (fp == NULL) /* whoops, no date file */
X return;
X
X if (++file_level > MAX_NESTING) {
X ERR(E_NESTING);
X exit(EXIT_FAILURE);
X }
X
X save_year = curr_year; /* save default year */
X
X /* read lines until EOF */
X
X while (getline(fp, &line)) {
X
X ntokens = loadwords(); /* split line into tokens */
X pword = words; /* point to the first */
X
X /* get token type and pointers to function and name */
X
X pptype = get_token(*pword++);
X pfcn = pp_info[pptype].pfcn;
X ptok = pp_info[pptype].name;
X
X switch (pptype) {
X
X case PP_DEFINE:
X case PP_UNDEF:
X if (processing)
X (void) (*pfcn)(*pword);
X extra = ntokens > 2;
X break;
X
X case PP_ELSE:
X if (if_level < 1) {
X ERR(E_ELSE_ERR);
X break;
X }
X
X if (processing) {
X processing = FALSE; /* disable processing */
X restart_level = if_level;
X }
X else
X if (if_level == restart_level) {
X processing = TRUE; /* re-enable processing */
X restart_level = 0;
X }
X extra = ntokens > 1;
X break;
X
X case PP_ENDIF:
X if (if_level < 1) {
X ERR(E_END_ERR);
X break;
X }
X
X if (! processing && if_level == restart_level) {
X processing = TRUE; /* re-enable processing */
X restart_level = 0;
X }
X if_level--;
X extra = ntokens > 1;
X break;
X
X case PP_IFDEF:
X case PP_IFNDEF:
X if_level++;
X if (processing) {
X if (! (*pfcn)(*pword)) {
X processing = FALSE;
X restart_level = if_level;
X }
X }
X extra = ntokens > 2;
X break;
X
X case PP_INCLUDE:
X if (processing)
X do_include(mk_path(incpath, filename), *pword);
X extra = ntokens > 2;
X break;
X
X case PP_OTHER: /* none of the above - parse as date */
X if (processing) {
X switch (parse(words)) {
X
X case PARSE_INVDATE:
X ERR(E_INV_DATE);
X break;
X
X case PARSE_INVLINE:
X ERR(E_INV_LINE);
X break;
X
X }
X }
X extra = FALSE;
X break;
X
X } /* end switch */
X
X if (extra) { /* extraneous data? */
X sprintf(msg, E_GARBAGE, ptok);
X ERR(msg);
X }
X
X } /* end while */
X
X if (if_level > 0)
X FPR(stderr, E_UNT_IFDEF, progname, filename);
X
X file_level--;
X curr_year = save_year; /* restore default year */
}
X
/*
X * Routines to extract and print data
X */
X
X
/*
X * Browse through the data structure looking for day, holiday, or notes text
X * in the specified month/year
X */
void find_daytext(month, year, is_holiday)
X int month, year;
X int is_holiday;
{
X register int day;
X year_info *py;
X month_info *pm;
X register day_info *pd;
X int first;
X char *fcn = is_holiday ? "holidaytext" : "daytext";
X
X /* if no text for this year and month, return */
X
X if ((py = find_year(year, FALSE)) == NULL ||
X (pm = py->month[month-1]) == NULL)
X return;
X
X /* walk array of day text pointers and linked lists of text */
X
X for (day = 1; day <= NOTE_DAY; day++) {
X for (pd = pm->day[day-1], first = TRUE;
X pd;
X pd = pd->next) {
X if (pd->is_holiday != is_holiday)
X continue;
X if (first) {
X if (day != NOTE_DAY) /* set up call */
X PRT("%d ", day);
X printf("[ \n");
X }
X else
X PRT("(.p)\n"); /* separate text */
X print_text(pd->text);
X first = FALSE;
X }
X if (! first) /* wrap up call (if one made) */
X PRT("] %s\n", day == NOTE_DAY ? "notetext" : fcn);
X }
}
X
X
/*
X * Browse through the date file looking for holidays in specified month/year
X */
void find_holidays(month, year)
X int month, year;
{
X register int day;
X register unsigned long holidays;
X year_info *py;
X month_info *pm;
X
X pm = (py = find_year(year, FALSE)) ? py->month[month-1] : NULL;
X
X PRT("/note_block %s def\n", cond[pm && pm->day[NOTE_DAY-1]]);
X
X PRT("/holidays ["); /* start definition of list */
X
X for (holidays = pm ? pm->holidays : 0, day = 1;
X holidays;
X holidays >>= 1, day++)
X if (holidays & 01)
X PRT(" %d", day);
X
X PRT(" 99 ] def\n"); /* terminate with dummy entry */
X
}
X
X
/*
X * pmonth - generate calendar for specified month/year
X */
void pmonth(month, year)
X int month, year;
{
X
X PRT("/year %d def\n", year); /* set up year and month */
X PRT("/month %d def\n", month);
X find_holidays(month, year); /* make list of holidays */
X PRT("printmonth\n");
X find_daytext(month, year, TRUE); /* holiday text */
X find_daytext(month, year, FALSE); /* day and note text */
X PRT("showpage\n");
}
X
X
/*
X * Routines dealing with translation of file specifications (VMS, Un*x)
X */
X
#ifdef VMS
/*
X * mk_path - extract the path component from VMS file spec
X */
char *mk_path(path, filespec)
X char *path; /* output path */
X char *filespec; /* input filespec */
{
X char *p;
X
X strcpy(path, filespec);
X if (!(p = strchr(path, ']')) && !(p = strchr(path, ':')))
X p = path - 1; /* return null string if no path */
X *++p = '\0';
X
X return path;
}
X
X
/*
X * mk_filespec - merge VMS path and file names, where latter can be relative
X */
X
char *mk_filespec(filespec, path, name)
X char *filespec; /* output filespec */
X char *path; /* input path */
X char *name; /* input file name */
{
X char *p;
X
X *filespec = '\0';
X
X /* copy name intact if absolute; else merge path and relative name */
X if (!strchr(name, ':')) {
X strcpy(filespec, path);
X if ((p = P_LASTCHAR(filespec)) && *p == END_PATH &&
X name[0] == START_PATH && strchr(".-", name[1]))
X *p = *++name == '-' ? '.' : '\0';
X }
X
X return strcat(filespec, name);
}
X
X
/*
X * trnlog - return translation of VMS logical name (null if missing)
X */
char *trnlog(logname) /* look up logical name */
X char *logname;
{
static char trnbuf[STRSIZ];
X
$DESCRIPTOR(src, logname);
$DESCRIPTOR(dst, trnbuf);
short len;
int ret;
X
src.dsc$w_length = strlen(logname);
ret = LIB$SYS_TRNLOG(&src, &len, &dst);
return ret == SS$_NORMAL ? (trnbuf[len] = '\0', trnbuf) : NULL;
}
X
#else
X
/*
X * mk_path - extract the path component from a Un*x file spec
X */
char *mk_path(path, filespec)
X char *path; /* output path */
X char *filespec; /* input filespec */
{
X char *p;
X
X strcpy(path, filespec);
X if (! (p = strrchr(path, END_PATH)) )
X p = path - 1; /* return null string if no path */
X
X *++p = '\0';
X return path;
}
X
X
/*
X * mk_filespec - merge Un*x path and file names, where latter can be relative
X */
X
char *mk_filespec(filespec, path, name)
X char *filespec; /* output filespec */
X char *path; /* input path */
X char *name; /* input file name */
{
X char *p;
X
X *filespec = '\0';
X
X /* copy name intact if absolute; else merge path and relative name */
X
X /* if path starts with "~/", translate it for user */
X if (strncmp(name, "~/", 2) == 0 && (p = trnlog(HOME_DIR)) != NULL) {
X strcpy(filespec, p);
X if ((p = P_LASTCHAR(filespec)) && *p != END_PATH)
X *++p = END_PATH, *++p = '\0';
X name += 2; /* skip "~/" */
X }
X else if (*name != START_PATH) { /* relative path */
X strcpy(filespec, path);
X if ((p = P_LASTCHAR(filespec)) && *p != END_PATH)
X *++p = END_PATH, *++p = '\0';
X }
X
X return strcat(filespec, name);
}
X
X
/*
X * trnlog - return translation of Un*x environment variable
X */
char *trnlog(logname) /* look up logical name */
X char *logname;
{
return getenv(logname);
}
X
#endif
SHAR_EOF
chmod 0644 pcal.c ||
echo 'restore of pcal.c failed'
Wc_c="`wc -c < 'pcal.c'`"
test 61911 -eq "$Wc_c" ||
echo 'pcal.c: original size 61911, current size' "$Wc_c"
fi
exit 0