/usr/share/texlive/texmf-dist/metapost/metauml/util_commons.mp is in texlive-metapost 2015.20160320-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 | % MetaUtil, an easier MetaPost life
% Copyright (C) 2005 Ovidiu Gheorghies
%
% This program is free software; you can redistribute it and/or
% modify it under the terms of the GNU General Public License
% as published by the Free Software Foundation; either version 2
% of the License, or (at your option) any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program; if not, write to the Free Software
% Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
if known _util_commons_mp:
expandafter endinput
fi;
_util_commons_mp:=1;
% Sadly, this copy of the macro is needed to prevent multiple file loads being shown by MetaPost.
% The guard values (such as _metauml_mp) do ensure that the file isn't loaded multiple times,
% but this macro makes sure that MetaPost won't try to load the file and display a message for that.
def inputonce text libraryFile=
if not known scantokens ("_" & str libraryFile & "_mp"):
%includeonce% show "Loading " & str libraryFile;
scantokens ("input " & str libraryFile);
else:
%includeonce% show str libraryFile & " already loaded.";
fi;
enddef;
inputonce util_log;
vardef lmax(text items)=
log "finding lmax of items " & str items;
save current, nItems;
numeric current, nItems;
nItems := 0;
current:= 0;
for item = items:
log nItems;
log item;
if nItems = 0:
current := item;
else:
current := max(current)(item);
fi;
nItems := nItems + 1;
endfor;
current
enddef;
vardef lmin(text items)=
save current, nItems;
numeric current, nItems;
nItems := 0;
current:= 0;
for item = items:
if nItems = 0:
current := item;
else:
current := min(current)(item);
fi;
nItems := nItems + 1;
endfor;
current
enddef;
def max(text a)(text b)=
if (a > b): a%
else:b%
fi;
enddef;
def min(text a)(text b)=
if (a < b): a%
else:b%
fi;
enddef;
vardef ensurePict(text pictOrText)(expr font, scale) =
save p; picture p;
if picture pictOrText: p=pictOrText
else: p = pictOrText infont font scaled scale
fi;
p
enddef;
def pictHeight(text obj) =
(ypart (urcorner obj) - ypart (llcorner obj))
enddef;
def pictWidth(text obj) =
(xpart (urcorner obj) - xpart (llcorner obj))
enddef;
vardef listArray(text array)(text nElements)=
save objEnum;
string objEnum;
objEnum := "";
for i = 0 upto nElements-1:
if i>0:
objEnum := objEnum & ", ";
fi;
objEnum := objEnum & (str array) & (decimal i);
endfor;
objEnum
enddef;
vardef enumToString(text enumeration)(expr prefix)=
save ret, firstVar;
string ret;
ret := "";
numeric firstVar;
firstVar := 1;
forsuffixes v = enumeration:
if firstVar = 0:
ret := ret & ",";
else:
firstVar := 0;
fi;
ret := ret & prefix & (str v);
endfor;
ret
enddef;
def _dx(text pA)(text pB) =
(xpart(pB)-xpart(pA))
enddef;
def _dy(text pA, pB) =
(ypart(pB)-ypart(pA))
enddef;
def _length(text pA)(text pB) =
sqrt (_dx(pA)(pB)*_dx(pA)(pB) + _dy(pA)(pB)*_dy(pA)(pB))
enddef;
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