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freebsd-dev/gnu/usr.bin/groff/addftinfo/guess.cc
Paul Traina f84f13d3d0 groff-1.09
1995-01-15 08:10:00 +00:00

491 lines
11 KiB
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// -*- C++ -*-
/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com)
This file is part of groff.
groff 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, or (at your option) any later
version.
groff 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 groff; see the file COPYING. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "guess.h"
void guess(const char *s, const font_params &param, char_metric *metric)
{
int &height = metric->height;
int &depth = metric->depth;
metric->ic = 0;
metric->left_ic = 0;
metric->sk = 0;
height = 0;
depth = 0;
if (s[0] == '\0' || (s[1] != '\0' && s[2] != '\0'))
goto do_default;
#define HASH(c1, c2) (((unsigned char)(c1) << 8) | (unsigned char)(c2))
switch (HASH(s[0], s[1])) {
default:
do_default:
if (metric->type & 01)
depth = param.desc_depth;
if (metric->type & 02)
height = param.asc_height;
else
height = param.x_height;
break;
case HASH('\\', '|'):
case HASH('\\', '^'):
case HASH('\\', '&'):
// these have zero height and depth
break;
case HASH('f', 0):
height = param.asc_height;
if (param.italic)
depth = param.desc_depth;
break;
case HASH('a', 0):
case HASH('c', 0):
case HASH('e', 0):
case HASH('m', 0):
case HASH('n', 0):
case HASH('o', 0):
case HASH('r', 0):
case HASH('s', 0):
case HASH('u', 0):
case HASH('v', 0):
case HASH('w', 0):
case HASH('x', 0):
case HASH('z', 0):
height = param.x_height;
break;
case HASH('i', 0):
height = param.x_height;
break;
case HASH('b', 0):
case HASH('d', 0):
case HASH('h', 0):
case HASH('k', 0):
case HASH('l', 0):
case HASH('F', 'i'):
case HASH('F', 'l'):
case HASH('f', 'f'):
case HASH('f', 'i'):
case HASH('f', 'l'):
height = param.asc_height;
break;
case HASH('t', 0):
height = param.asc_height;
break;
case HASH('g', 0):
case HASH('p', 0):
case HASH('q', 0):
case HASH('y', 0):
height = param.x_height;
depth = param.desc_depth;
break;
case HASH('j', 0):
height = param.x_height;
depth = param.desc_depth;
break;
case HASH('A', 0):
case HASH('B', 0):
case HASH('C', 0):
case HASH('D', 0):
case HASH('E', 0):
case HASH('F', 0):
case HASH('G', 0):
case HASH('H', 0):
case HASH('I', 0):
case HASH('J', 0):
case HASH('K', 0):
case HASH('L', 0):
case HASH('M', 0):
case HASH('N', 0):
case HASH('O', 0):
case HASH('P', 0):
case HASH('Q', 0):
case HASH('R', 0):
case HASH('S', 0):
case HASH('T', 0):
case HASH('U', 0):
case HASH('V', 0):
case HASH('W', 0):
case HASH('X', 0):
case HASH('Y', 0):
case HASH('Z', 0):
height = param.cap_height;
break;
case HASH('*', 'A'):
case HASH('*', 'B'):
case HASH('*', 'C'):
case HASH('*', 'D'):
case HASH('*', 'E'):
case HASH('*', 'F'):
case HASH('*', 'G'):
case HASH('*', 'H'):
case HASH('*', 'I'):
case HASH('*', 'K'):
case HASH('*', 'L'):
case HASH('*', 'M'):
case HASH('*', 'N'):
case HASH('*', 'O'):
case HASH('*', 'P'):
case HASH('*', 'Q'):
case HASH('*', 'R'):
case HASH('*', 'S'):
case HASH('*', 'T'):
case HASH('*', 'U'):
case HASH('*', 'W'):
case HASH('*', 'X'):
case HASH('*', 'Y'):
case HASH('*', 'Z'):
height = param.cap_height;
break;
case HASH('0', 0):
case HASH('1', 0):
case HASH('2', 0):
case HASH('3', 0):
case HASH('4', 0):
case HASH('5', 0):
case HASH('6', 0):
case HASH('7', 0):
case HASH('8', 0):
case HASH('9', 0):
case HASH('1', '2'):
case HASH('1', '4'):
case HASH('3', '4'):
height = param.fig_height;
break;
case HASH('(', 0):
case HASH(')', 0):
case HASH('[', 0):
case HASH(']', 0):
case HASH('{', 0):
case HASH('}', 0):
height = param.body_height;
depth = param.body_depth;
break;
case HASH('i', 's'):
height = (param.em*3)/4;
depth = param.em/4;
break;
case HASH('*', 'a'):
case HASH('*', 'e'):
case HASH('*', 'i'):
case HASH('*', 'k'):
case HASH('*', 'n'):
case HASH('*', 'o'):
case HASH('*', 'p'):
case HASH('*', 's'):
case HASH('*', 't'):
case HASH('*', 'u'):
case HASH('*', 'w'):
height = param.x_height;
break;
case HASH('*', 'd'):
case HASH('*', 'l'):
height = param.asc_height;
break;
case HASH('*', 'g'):
case HASH('*', 'h'):
case HASH('*', 'm'):
case HASH('*', 'r'):
case HASH('*', 'x'):
case HASH('*', 'y'):
height = param.x_height;
depth = param.desc_depth;
break;
case HASH('*', 'b'):
case HASH('*', 'c'):
case HASH('*', 'f'):
case HASH('*', 'q'):
case HASH('*', 'z'):
height = param.asc_height;
depth = param.desc_depth;
break;
case HASH('t', 's'):
height = param.x_height;
depth = param.desc_depth;
break;
case HASH('!', 0):
case HASH('?', 0):
case HASH('"', 0):
case HASH('#', 0):
case HASH('$', 0):
case HASH('%', 0):
case HASH('&', 0):
case HASH('*', 0):
case HASH('+', 0):
height = param.asc_height;
break;
case HASH('`', 0):
case HASH('\'', 0):
height = param.asc_height;
break;
case HASH('~', 0):
case HASH('^', 0):
case HASH('a', 'a'):
case HASH('g', 'a'):
height = param.asc_height;
break;
case HASH('r', 'u'):
case HASH('.', 0):
break;
case HASH(',', 0):
depth = param.comma_depth;
break;
case HASH('m', 'i'):
case HASH('-', 0):
case HASH('h', 'y'):
case HASH('e', 'm'):
height = param.x_height;
break;
case HASH(':', 0):
height = param.x_height;
break;
case HASH(';', 0):
height = param.x_height;
depth = param.comma_depth;
break;
case HASH('=', 0):
case HASH('e', 'q'):
height = param.x_height;
break;
case HASH('<', 0):
case HASH('>', 0):
case HASH('>', '='):
case HASH('<', '='):
case HASH('@', 0):
case HASH('/', 0):
case HASH('|', 0):
case HASH('\\', 0):
height = param.asc_height;
break;
case HASH('_', 0):
case HASH('u', 'l'):
case HASH('\\', '_'):
depth = param.em/4;
break;
case HASH('r', 'n'):
height = (param.em*3)/4;
break;
case HASH('s', 'r'):
height = (param.em*3)/4;
depth = param.em/4;
break;
case HASH('b', 'u'):
case HASH('s', 'q'):
case HASH('d', 'e'):
case HASH('d', 'g'):
case HASH('f', 'm'):
case HASH('c', 't'):
case HASH('r', 'g'):
case HASH('c', 'o'):
case HASH('p', 'l'):
case HASH('*', '*'):
case HASH('s', 'c'):
case HASH('s', 'l'):
case HASH('=', '='):
case HASH('~', '='):
case HASH('a', 'p'):
case HASH('!', '='):
case HASH('-', '>'):
case HASH('<', '-'):
case HASH('u', 'a'):
case HASH('d', 'a'):
case HASH('m', 'u'):
case HASH('d', 'i'):
case HASH('+', '-'):
case HASH('c', 'u'):
case HASH('c', 'a'):
case HASH('s', 'b'):
case HASH('s', 'p'):
case HASH('i', 'b'):
case HASH('i', 'p'):
case HASH('i', 'f'):
case HASH('p', 'd'):
case HASH('g', 'r'):
case HASH('n', 'o'):
case HASH('p', 't'):
case HASH('e', 's'):
case HASH('m', 'o'):
case HASH('b', 'r'):
case HASH('d', 'd'):
case HASH('r', 'h'):
case HASH('l', 'h'):
case HASH('o', 'r'):
case HASH('c', 'i'):
height = param.asc_height;
break;
case HASH('l', 't'):
case HASH('l', 'b'):
case HASH('r', 't'):
case HASH('r', 'b'):
case HASH('l', 'k'):
case HASH('r', 'k'):
case HASH('b', 'v'):
case HASH('l', 'f'):
case HASH('r', 'f'):
case HASH('l', 'c'):
case HASH('r', 'c'):
height = (param.em*3)/4;
depth = param.em/4;
break;
#if 0
case HASH('%', '0'):
case HASH('-', '+'):
case HASH('-', 'D'):
case HASH('-', 'd'):
case HASH('-', 'd'):
case HASH('-', 'h'):
case HASH('.', 'i'):
case HASH('.', 'j'):
case HASH('/', 'L'):
case HASH('/', 'O'):
case HASH('/', 'l'):
case HASH('/', 'o'):
case HASH('=', '~'):
case HASH('A', 'E'):
case HASH('A', 'h'):
case HASH('A', 'N'):
case HASH('C', 's'):
case HASH('D', 'o'):
case HASH('F', 'c'):
case HASH('F', 'o'):
case HASH('I', 'J'):
case HASH('I', 'm'):
case HASH('O', 'E'):
case HASH('O', 'f'):
case HASH('O', 'K'):
case HASH('O', 'm'):
case HASH('O', 'R'):
case HASH('P', 'o'):
case HASH('R', 'e'):
case HASH('S', '1'):
case HASH('S', '2'):
case HASH('S', '3'):
case HASH('T', 'P'):
case HASH('T', 'p'):
case HASH('Y', 'e'):
case HASH('\\', '-'):
case HASH('a', '"'):
case HASH('a', '-'):
case HASH('a', '.'):
case HASH('a', '^'):
case HASH('a', 'b'):
case HASH('a', 'c'):
case HASH('a', 'd'):
case HASH('a', 'e'):
case HASH('a', 'h'):
case HASH('a', 'o'):
case HASH('a', 't'):
case HASH('a', '~'):
case HASH('b', 'a'):
case HASH('b', 'b'):
case HASH('b', 's'):
case HASH('c', '*'):
case HASH('c', '+'):
case HASH('f', '/'):
case HASH('f', 'a'):
case HASH('f', 'c'):
case HASH('f', 'o'):
case HASH('h', 'a'):
case HASH('h', 'o'):
case HASH('i', 'j'):
case HASH('l', 'A'):
case HASH('l', 'B'):
case HASH('l', 'C'):
case HASH('m', 'd'):
case HASH('n', 'c'):
case HASH('n', 'e'):
case HASH('n', 'm'):
case HASH('o', 'A'):
case HASH('o', 'a'):
case HASH('o', 'e'):
case HASH('o', 'q'):
case HASH('p', 'l'):
case HASH('p', 'p'):
case HASH('p', 's'):
case HASH('r', '!'):
case HASH('r', '?'):
case HASH('r', 'A'):
case HASH('r', 'B'):
case HASH('r', 'C'):
case HASH('r', 's'):
case HASH('s', 'h'):
case HASH('s', 's'):
case HASH('t', 'e'):
case HASH('t', 'f'):
case HASH('t', 'i'):
case HASH('t', 'm'):
case HASH('~', '~'):
case HASH('v', 'S'):
case HASH('v', 'Z'):
case HASH('v', 's'):
case HASH('v', 'z'):
case HASH('^', 'A'):
case HASH('^', 'E'):
case HASH('^', 'I'):
case HASH('^', 'O'):
case HASH('^', 'U'):
case HASH('^', 'a'):
case HASH('^', 'e'):
case HASH('^', 'i'):
case HASH('^', 'o'):
case HASH('^', 'u'):
case HASH('`', 'A'):
case HASH('`', 'E'):
case HASH('`', 'I'):
case HASH('`', 'O'):
case HASH('`', 'U'):
case HASH('`', 'a'):
case HASH('`', 'e'):
case HASH('`', 'i'):
case HASH('`', 'o'):
case HASH('`', 'u'):
case HASH('~', 'A'):
case HASH('~', 'N'):
case HASH('~', 'O'):
case HASH('~', 'a'):
case HASH('~', 'n'):
case HASH('~', 'o'):
case HASH('\'', 'A'):
case HASH('\'', 'C'):
case HASH('\'', 'E'):
case HASH('\'', 'I'):
case HASH('\'', 'O'):
case HASH('\'', 'U'):
case HASH('\'', 'a'):
case HASH('\'', 'c'):
case HASH('\'', 'e'):
case HASH('\'', 'i'):
case HASH('\'', 'o'):
case HASH('\'', 'u')
case HASH(':', 'A'):
case HASH(':', 'E'):
case HASH(':', 'I'):
case HASH(':', 'O'):
case HASH(':', 'U'):
case HASH(':', 'Y'):
case HASH(':', 'a'):
case HASH(':', 'e'):
case HASH(':', 'i'):
case HASH(':', 'o'):
case HASH(':', 'u'):
case HASH(':', 'y'):
case HASH(',', 'C'):
case HASH(',', 'c'):
#endif
}
}
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