491 lines
11 KiB
C++
491 lines
11 KiB
C++
// -*- C++ -*-
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/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
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Written by James Clark (jjc@jclark.com)
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This file is part of groff.
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groff is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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groff is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with groff; see the file COPYING. If not, write to the Free Software
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Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "guess.h"
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void guess(const char *s, const font_params ¶m, char_metric *metric)
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{
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int &height = metric->height;
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int &depth = metric->depth;
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metric->ic = 0;
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metric->left_ic = 0;
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metric->sk = 0;
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height = 0;
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depth = 0;
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if (s[0] == '\0' || (s[1] != '\0' && s[2] != '\0'))
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goto do_default;
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#define HASH(c1, c2) (((unsigned char)(c1) << 8) | (unsigned char)(c2))
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switch (HASH(s[0], s[1])) {
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default:
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do_default:
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if (metric->type & 01)
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depth = param.desc_depth;
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if (metric->type & 02)
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height = param.asc_height;
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else
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height = param.x_height;
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break;
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case HASH('\\', '|'):
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case HASH('\\', '^'):
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case HASH('\\', '&'):
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// these have zero height and depth
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break;
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case HASH('f', 0):
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height = param.asc_height;
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if (param.italic)
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depth = param.desc_depth;
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break;
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case HASH('a', 0):
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case HASH('c', 0):
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case HASH('e', 0):
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case HASH('m', 0):
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case HASH('n', 0):
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case HASH('o', 0):
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case HASH('r', 0):
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case HASH('s', 0):
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case HASH('u', 0):
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case HASH('v', 0):
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case HASH('w', 0):
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case HASH('x', 0):
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case HASH('z', 0):
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height = param.x_height;
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break;
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case HASH('i', 0):
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height = param.x_height;
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break;
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case HASH('b', 0):
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case HASH('d', 0):
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case HASH('h', 0):
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case HASH('k', 0):
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case HASH('l', 0):
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case HASH('F', 'i'):
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case HASH('F', 'l'):
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case HASH('f', 'f'):
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case HASH('f', 'i'):
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case HASH('f', 'l'):
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height = param.asc_height;
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break;
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case HASH('t', 0):
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height = param.asc_height;
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break;
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case HASH('g', 0):
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case HASH('p', 0):
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case HASH('q', 0):
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case HASH('y', 0):
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height = param.x_height;
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depth = param.desc_depth;
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break;
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case HASH('j', 0):
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height = param.x_height;
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depth = param.desc_depth;
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break;
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case HASH('A', 0):
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case HASH('B', 0):
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case HASH('C', 0):
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case HASH('D', 0):
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case HASH('E', 0):
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case HASH('F', 0):
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case HASH('G', 0):
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case HASH('H', 0):
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case HASH('I', 0):
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case HASH('J', 0):
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case HASH('K', 0):
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case HASH('L', 0):
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case HASH('M', 0):
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case HASH('N', 0):
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case HASH('O', 0):
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case HASH('P', 0):
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case HASH('Q', 0):
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case HASH('R', 0):
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case HASH('S', 0):
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case HASH('T', 0):
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case HASH('U', 0):
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case HASH('V', 0):
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case HASH('W', 0):
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case HASH('X', 0):
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case HASH('Y', 0):
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case HASH('Z', 0):
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height = param.cap_height;
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break;
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case HASH('*', 'A'):
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case HASH('*', 'B'):
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case HASH('*', 'C'):
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case HASH('*', 'D'):
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case HASH('*', 'E'):
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case HASH('*', 'F'):
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case HASH('*', 'G'):
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case HASH('*', 'H'):
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case HASH('*', 'I'):
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case HASH('*', 'K'):
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case HASH('*', 'L'):
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case HASH('*', 'M'):
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case HASH('*', 'N'):
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case HASH('*', 'O'):
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case HASH('*', 'P'):
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case HASH('*', 'Q'):
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case HASH('*', 'R'):
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case HASH('*', 'S'):
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case HASH('*', 'T'):
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case HASH('*', 'U'):
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case HASH('*', 'W'):
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case HASH('*', 'X'):
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case HASH('*', 'Y'):
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case HASH('*', 'Z'):
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height = param.cap_height;
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break;
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case HASH('0', 0):
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case HASH('1', 0):
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case HASH('2', 0):
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case HASH('3', 0):
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case HASH('4', 0):
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case HASH('5', 0):
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case HASH('6', 0):
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case HASH('7', 0):
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case HASH('8', 0):
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case HASH('9', 0):
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case HASH('1', '2'):
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case HASH('1', '4'):
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case HASH('3', '4'):
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height = param.fig_height;
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break;
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case HASH('(', 0):
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case HASH(')', 0):
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case HASH('[', 0):
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case HASH(']', 0):
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case HASH('{', 0):
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case HASH('}', 0):
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height = param.body_height;
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depth = param.body_depth;
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break;
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case HASH('i', 's'):
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height = (param.em*3)/4;
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depth = param.em/4;
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break;
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case HASH('*', 'a'):
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case HASH('*', 'e'):
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case HASH('*', 'i'):
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case HASH('*', 'k'):
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case HASH('*', 'n'):
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case HASH('*', 'o'):
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case HASH('*', 'p'):
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case HASH('*', 's'):
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case HASH('*', 't'):
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case HASH('*', 'u'):
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case HASH('*', 'w'):
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height = param.x_height;
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break;
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case HASH('*', 'd'):
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case HASH('*', 'l'):
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height = param.asc_height;
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break;
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case HASH('*', 'g'):
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case HASH('*', 'h'):
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case HASH('*', 'm'):
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case HASH('*', 'r'):
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case HASH('*', 'x'):
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case HASH('*', 'y'):
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height = param.x_height;
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depth = param.desc_depth;
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break;
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case HASH('*', 'b'):
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case HASH('*', 'c'):
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case HASH('*', 'f'):
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case HASH('*', 'q'):
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case HASH('*', 'z'):
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height = param.asc_height;
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depth = param.desc_depth;
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break;
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case HASH('t', 's'):
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height = param.x_height;
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depth = param.desc_depth;
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break;
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case HASH('!', 0):
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case HASH('?', 0):
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case HASH('"', 0):
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case HASH('#', 0):
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case HASH('$', 0):
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case HASH('%', 0):
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case HASH('&', 0):
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case HASH('*', 0):
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case HASH('+', 0):
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height = param.asc_height;
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break;
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case HASH('`', 0):
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case HASH('\'', 0):
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height = param.asc_height;
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break;
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case HASH('~', 0):
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case HASH('^', 0):
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case HASH('a', 'a'):
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case HASH('g', 'a'):
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height = param.asc_height;
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break;
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case HASH('r', 'u'):
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case HASH('.', 0):
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break;
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case HASH(',', 0):
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depth = param.comma_depth;
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break;
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case HASH('m', 'i'):
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case HASH('-', 0):
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case HASH('h', 'y'):
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case HASH('e', 'm'):
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height = param.x_height;
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break;
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case HASH(':', 0):
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height = param.x_height;
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break;
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case HASH(';', 0):
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height = param.x_height;
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depth = param.comma_depth;
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break;
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case HASH('=', 0):
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case HASH('e', 'q'):
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height = param.x_height;
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break;
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case HASH('<', 0):
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case HASH('>', 0):
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case HASH('>', '='):
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case HASH('<', '='):
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case HASH('@', 0):
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case HASH('/', 0):
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case HASH('|', 0):
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case HASH('\\', 0):
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height = param.asc_height;
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break;
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case HASH('_', 0):
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case HASH('u', 'l'):
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case HASH('\\', '_'):
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depth = param.em/4;
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break;
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case HASH('r', 'n'):
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height = (param.em*3)/4;
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break;
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case HASH('s', 'r'):
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height = (param.em*3)/4;
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depth = param.em/4;
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break;
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case HASH('b', 'u'):
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case HASH('s', 'q'):
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case HASH('d', 'e'):
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case HASH('d', 'g'):
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case HASH('f', 'm'):
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case HASH('c', 't'):
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case HASH('r', 'g'):
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case HASH('c', 'o'):
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case HASH('p', 'l'):
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case HASH('*', '*'):
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case HASH('s', 'c'):
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case HASH('s', 'l'):
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case HASH('=', '='):
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case HASH('~', '='):
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case HASH('a', 'p'):
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case HASH('!', '='):
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case HASH('-', '>'):
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case HASH('<', '-'):
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case HASH('u', 'a'):
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case HASH('d', 'a'):
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case HASH('m', 'u'):
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case HASH('d', 'i'):
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case HASH('+', '-'):
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case HASH('c', 'u'):
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case HASH('c', 'a'):
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case HASH('s', 'b'):
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case HASH('s', 'p'):
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case HASH('i', 'b'):
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case HASH('i', 'p'):
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case HASH('i', 'f'):
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case HASH('p', 'd'):
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case HASH('g', 'r'):
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case HASH('n', 'o'):
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case HASH('p', 't'):
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case HASH('e', 's'):
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case HASH('m', 'o'):
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case HASH('b', 'r'):
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case HASH('d', 'd'):
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case HASH('r', 'h'):
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case HASH('l', 'h'):
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case HASH('o', 'r'):
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case HASH('c', 'i'):
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height = param.asc_height;
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break;
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case HASH('l', 't'):
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case HASH('l', 'b'):
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case HASH('r', 't'):
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case HASH('r', 'b'):
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case HASH('l', 'k'):
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case HASH('r', 'k'):
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case HASH('b', 'v'):
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case HASH('l', 'f'):
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case HASH('r', 'f'):
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case HASH('l', 'c'):
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case HASH('r', 'c'):
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height = (param.em*3)/4;
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depth = param.em/4;
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break;
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#if 0
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case HASH('%', '0'):
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case HASH('-', '+'):
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case HASH('-', 'D'):
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case HASH('-', 'd'):
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case HASH('-', 'd'):
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case HASH('-', 'h'):
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case HASH('.', 'i'):
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case HASH('.', 'j'):
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case HASH('/', 'L'):
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case HASH('/', 'O'):
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case HASH('/', 'l'):
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case HASH('/', 'o'):
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case HASH('=', '~'):
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case HASH('A', 'E'):
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case HASH('A', 'h'):
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case HASH('A', 'N'):
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case HASH('C', 's'):
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case HASH('D', 'o'):
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case HASH('F', 'c'):
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case HASH('F', 'o'):
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case HASH('I', 'J'):
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case HASH('I', 'm'):
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case HASH('O', 'E'):
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case HASH('O', 'f'):
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case HASH('O', 'K'):
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case HASH('O', 'm'):
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case HASH('O', 'R'):
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case HASH('P', 'o'):
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case HASH('R', 'e'):
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case HASH('S', '1'):
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case HASH('S', '2'):
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case HASH('S', '3'):
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case HASH('T', 'P'):
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case HASH('T', 'p'):
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case HASH('Y', 'e'):
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case HASH('\\', '-'):
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case HASH('a', '"'):
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case HASH('a', '-'):
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case HASH('a', '.'):
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case HASH('a', '^'):
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case HASH('a', 'b'):
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case HASH('a', 'c'):
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case HASH('a', 'd'):
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case HASH('a', 'e'):
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case HASH('a', 'h'):
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case HASH('a', 'o'):
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case HASH('a', 't'):
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case HASH('a', '~'):
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case HASH('b', 'a'):
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case HASH('b', 'b'):
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case HASH('b', 's'):
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case HASH('c', '*'):
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case HASH('c', '+'):
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case HASH('f', '/'):
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case HASH('f', 'a'):
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case HASH('f', 'c'):
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case HASH('f', 'o'):
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case HASH('h', 'a'):
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case HASH('h', 'o'):
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case HASH('i', 'j'):
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case HASH('l', 'A'):
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case HASH('l', 'B'):
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case HASH('l', 'C'):
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case HASH('m', 'd'):
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case HASH('n', 'c'):
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case HASH('n', 'e'):
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case HASH('n', 'm'):
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case HASH('o', 'A'):
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case HASH('o', 'a'):
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case HASH('o', 'e'):
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case HASH('o', 'q'):
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case HASH('p', 'l'):
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case HASH('p', 'p'):
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case HASH('p', 's'):
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case HASH('r', '!'):
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case HASH('r', '?'):
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case HASH('r', 'A'):
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case HASH('r', 'B'):
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case HASH('r', 'C'):
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case HASH('r', 's'):
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case HASH('s', 'h'):
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case HASH('s', 's'):
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case HASH('t', 'e'):
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case HASH('t', 'f'):
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case HASH('t', 'i'):
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case HASH('t', 'm'):
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case HASH('~', '~'):
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case HASH('v', 'S'):
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case HASH('v', 'Z'):
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case HASH('v', 's'):
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case HASH('v', 'z'):
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case HASH('^', 'A'):
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case HASH('^', 'E'):
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case HASH('^', 'I'):
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case HASH('^', 'O'):
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case HASH('^', 'U'):
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case HASH('^', 'a'):
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case HASH('^', 'e'):
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case HASH('^', 'i'):
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case HASH('^', 'o'):
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case HASH('^', 'u'):
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case HASH('`', 'A'):
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case HASH('`', 'E'):
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case HASH('`', 'I'):
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case HASH('`', 'O'):
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case HASH('`', 'U'):
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case HASH('`', 'a'):
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case HASH('`', 'e'):
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case HASH('`', 'i'):
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case HASH('`', 'o'):
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case HASH('`', 'u'):
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case HASH('~', 'A'):
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case HASH('~', 'N'):
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case HASH('~', 'O'):
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case HASH('~', 'a'):
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case HASH('~', 'n'):
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case HASH('~', 'o'):
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case HASH('\'', 'A'):
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case HASH('\'', 'C'):
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case HASH('\'', 'E'):
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case HASH('\'', 'I'):
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case HASH('\'', 'O'):
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case HASH('\'', 'U'):
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case HASH('\'', 'a'):
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case HASH('\'', 'c'):
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case HASH('\'', 'e'):
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case HASH('\'', 'i'):
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case HASH('\'', 'o'):
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case HASH('\'', 'u')
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case HASH(':', 'A'):
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case HASH(':', 'E'):
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case HASH(':', 'I'):
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case HASH(':', 'O'):
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case HASH(':', 'U'):
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case HASH(':', 'Y'):
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case HASH(':', 'a'):
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case HASH(':', 'e'):
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case HASH(':', 'i'):
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case HASH(':', 'o'):
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case HASH(':', 'u'):
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case HASH(':', 'y'):
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case HASH(',', 'C'):
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case HASH(',', 'c'):
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#endif
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}
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}
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