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49 lines
1.4 KiB
49 lines
1.4 KiB
/* cal.mod - print an ASCII calendar of the given year */
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/* Written in GNU MathProg by Andrew Makhorin <mao@gnu.org> */
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param year, integer, >= 0001, <= 3999, default 2010;
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param first_day{m in 1..12}, integer, >= 0, <= 6, :=
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time2str(str2time(year & "-" & m & "-01", "%Y-%m-%d"), "%w");
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param days_in_month{m in 1..12}, integer, >= 28, <= 31, :=
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(str2time(year + (if m < 12 then 0 else 1) & "-" &
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(if m < 12 then m+1 else 1) & "-01", "%Y-%m-%d") -
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str2time(year & "-" & m & "-01", "%Y-%m-%d")) / 86400;
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param foo{m in 1..12, k in 0..5, d in 0..6}, integer, :=
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7 * k + d + 1 - first_day[m];
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param cal{m in 1..12, k in 0..5, d in 0..6}, integer, :=
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if 1 <= foo[m,k,d] and foo[m,k,d] <= days_in_month[m] then
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foo[m,k,d];
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printf "\n";
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printf "%33s%04d\n", "", year;
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printf "\n";
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for {t in 1..12 by 3}
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{ for {m in t..t+2}
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{ printf "%7s%-14s", "", time2str(str2time(m, "%m"), "%B");
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printf{0..0: m < t+2} " ";
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}
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printf "\n";
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for {m in t..t+2}
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{ printf " S M Tu W Th F S";
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printf{0..0: m < t+2} " ";
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}
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printf "\n";
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for {k in 0..5}
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{ for {m in t..t+2}
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{ for {d in 0..6}
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{ printf{0..0: cal[m,k,d] = 0} " ";
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printf{0..0: cal[m,k,d] != 0} " %2d", cal[m,k,d];
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}
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printf{0..0: m < t+2} " ";
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}
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printf "\n";
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}
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}
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printf "\n";
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end;
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