916 lines
20 KiB
C++
916 lines
20 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 <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <assert.h>
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#include <math.h>
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#include <stdlib.h>
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#include "errarg.h"
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#include "error.h"
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#include "cset.h"
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#include "font.h"
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#include "lib.h"
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const char *const WS = " \t\n\r";
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struct font_char_metric {
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char type;
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int code;
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int width;
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int height;
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int depth;
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int pre_math_space;
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int italic_correction;
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int subscript_correction;
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};
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struct font_kern_list {
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int i1;
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int i2;
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int amount;
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font_kern_list *next;
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font_kern_list(int, int, int, font_kern_list * = 0);
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};
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struct font_widths_cache {
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font_widths_cache *next;
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int point_size;
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int *width;
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font_widths_cache(int, int, font_widths_cache *);
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~font_widths_cache();
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};
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/* text_file */
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struct text_file {
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FILE *fp;
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char *path;
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int lineno;
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int size;
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int skip_comments;
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char *buf;
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text_file(FILE *fp, char *p);
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~text_file();
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int next();
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void error(const char *format,
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const errarg &arg1 = empty_errarg,
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const errarg &arg2 = empty_errarg,
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const errarg &arg3 = empty_errarg);
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};
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text_file::text_file(FILE *p, char *s)
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: lineno(0), buf(0), size(0), skip_comments(1), fp(p), path(s)
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{
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}
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text_file::~text_file()
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{
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a_delete buf;
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a_delete path;
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if (fp)
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fclose(fp);
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}
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int text_file::next()
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{
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if (fp == 0)
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return 0;
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if (buf == 0) {
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buf = new char [128];
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size = 128;
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}
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for (;;) {
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int i = 0;
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for (;;) {
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int c = getc(fp);
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if (c == EOF)
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break;
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if (illegal_input_char(c))
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error("illegal input character code `%1'", int(c));
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else {
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if (i + 1 >= size) {
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char *old_buf = buf;
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buf = new char[size*2];
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memcpy(buf, old_buf, size);
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a_delete old_buf;
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size *= 2;
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}
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buf[i++] = c;
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if (c == '\n')
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break;
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}
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}
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if (i == 0)
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break;
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buf[i] = '\0';
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lineno++;
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char *ptr = buf;
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while (csspace(*ptr))
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ptr++;
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if (*ptr != 0 && (!skip_comments || *ptr != '#'))
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return 1;
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}
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return 0;
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}
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void text_file::error(const char *format,
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const errarg &arg1,
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const errarg &arg2,
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const errarg &arg3)
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{
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error_with_file_and_line(path, lineno, format, arg1, arg2, arg3);
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}
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/* font functions */
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font::font(const char *s)
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: special(0), ligatures(0), kern_hash_table(0), space_width(0),
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ch(0), ch_used(0), ch_size(0), ch_index(0), nindices(0), widths_cache(0)
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{
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name = new char[strlen(s) + 1];
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strcpy(name, s);
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internalname = 0;
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slant = 0.0;
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// load(); // for testing
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}
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font::~font()
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{
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a_delete ch;
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a_delete ch_index;
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if (kern_hash_table) {
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for (int i = 0; i < KERN_HASH_TABLE_SIZE; i++) {
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font_kern_list *kerns = kern_hash_table[i];
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while (kerns) {
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font_kern_list *tem = kerns;
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kerns = kerns->next;
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delete tem;
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}
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}
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a_delete kern_hash_table;
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}
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a_delete name;
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a_delete internalname;
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while (widths_cache) {
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font_widths_cache *tem = widths_cache;
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widths_cache = widths_cache->next;
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delete tem;
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}
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}
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static int scale_round(int n, int x, int y)
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{
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assert(x >= 0 && y > 0);
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int y2 = y/2;
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if (x == 0)
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return 0;
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if (n >= 0) {
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if (n <= (INT_MAX - y2)/x)
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return (n*x + y2)/y;
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return int(n*double(x)/double(y) + .5);
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}
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else {
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if (-(unsigned)n <= (-(unsigned)INT_MIN - y2)/x)
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{
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// XXX simplify expression to work around bug in gcc-2.6.0
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int tmp = n*x - y2;
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return tmp/y;
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}
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return int(n*double(x)/double(y) - .5);
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}
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}
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inline int font::scale(int w, int sz)
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{
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return sz == unitwidth ? w : scale_round(w, sz, unitwidth);
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}
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int font::get_skew(int c, int point_size, int sl)
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{
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int h = get_height(c, point_size);
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return int(h*tan((slant+sl)*PI/180.0) + .5);
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}
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int font::contains(int c)
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{
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return c >= 0 && c < nindices && ch_index[c] >= 0;
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}
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int font::is_special()
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{
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return special;
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}
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font_widths_cache::font_widths_cache(int ps, int ch_size,
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font_widths_cache *p = 0)
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: next(p), point_size(ps)
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{
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width = new int[ch_size];
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for (int i = 0; i < ch_size; i++)
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width[i] = -1;
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}
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font_widths_cache::~font_widths_cache()
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{
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a_delete width;
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}
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int font::get_width(int c, int point_size)
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{
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assert(c >= 0 && c < nindices);
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int i = ch_index[c];
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assert(i >= 0);
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if (point_size == unitwidth)
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return ch[i].width;
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if (!widths_cache)
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widths_cache = new font_widths_cache(point_size, ch_size);
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else if (widths_cache->point_size != point_size) {
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font_widths_cache **p;
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for (p = &widths_cache; *p; p = &(*p)->next)
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if ((*p)->point_size == point_size)
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break;
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if (*p) {
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font_widths_cache *tem = *p;
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*p = (*p)->next;
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tem->next = widths_cache;
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widths_cache = tem;
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}
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else
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widths_cache = new font_widths_cache(point_size, ch_size, widths_cache);
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}
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int &w = widths_cache->width[i];
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if (w < 0)
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w = scale(ch[i].width, point_size);
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return w;
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}
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int font::get_height(int c, int point_size)
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{
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assert(c >= 0 && c < nindices && ch_index[c] >= 0);
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return scale(ch[ch_index[c]].height, point_size);
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}
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int font::get_depth(int c, int point_size)
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{
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assert(c >= 0 && c < nindices && ch_index[c] >= 0);
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return scale(ch[ch_index[c]].depth, point_size);
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}
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int font::get_italic_correction(int c, int point_size)
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{
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assert(c >= 0 && c < nindices && ch_index[c] >= 0);
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return scale(ch[ch_index[c]].italic_correction, point_size);
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}
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int font::get_left_italic_correction(int c, int point_size)
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{
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assert(c >= 0 && c < nindices && ch_index[c] >= 0);
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return scale(ch[ch_index[c]].pre_math_space, point_size);
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}
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int font::get_subscript_correction(int c, int point_size)
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{
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assert(c >= 0 && c < nindices && ch_index[c] >= 0);
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return scale(ch[ch_index[c]].subscript_correction, point_size);
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}
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int font::get_space_width(int point_size)
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{
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return scale(space_width, point_size);
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}
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font_kern_list::font_kern_list(int c1, int c2, int n, font_kern_list *p)
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: i1(c1), i2(c2), amount(n), next(p)
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{
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}
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inline int font::hash_kern(int i1, int i2)
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{
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int n = ((i1 << 10) + i2) % KERN_HASH_TABLE_SIZE;
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return n < 0 ? -n : n;
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}
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void font::add_kern(int i1, int i2, int amount)
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{
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if (!kern_hash_table) {
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kern_hash_table = new font_kern_list *[KERN_HASH_TABLE_SIZE];
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for (int i = 0; i < KERN_HASH_TABLE_SIZE; i++)
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kern_hash_table[i] = 0;
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}
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font_kern_list **p = kern_hash_table + hash_kern(i1, i2);
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*p = new font_kern_list(i1, i2, amount, *p);
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}
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int font::get_kern(int i1, int i2, int point_size)
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{
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if (kern_hash_table) {
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for (font_kern_list *p = kern_hash_table[hash_kern(i1, i2)]; p; p = p->next)
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if (i1 == p->i1 && i2 == p->i2)
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return scale(p->amount, point_size);
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}
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return 0;
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}
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int font::has_ligature(int mask)
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{
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return mask & ligatures;
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}
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int font::get_character_type(int c)
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{
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assert(c >= 0 && c < nindices && ch_index[c] >= 0);
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return ch[ch_index[c]].type;
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}
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int font::get_code(int c)
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{
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assert(c >= 0 && c < nindices && ch_index[c] >= 0);
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return ch[ch_index[c]].code;
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}
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const char *font::get_name()
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{
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return name;
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}
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const char *font::get_internal_name()
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{
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return internalname;
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}
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void font::alloc_ch_index(int index)
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{
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if (nindices == 0) {
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nindices = 128;
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if (index >= nindices)
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nindices = index + 10;
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ch_index = new short[nindices];
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for (int i = 0; i < nindices; i++)
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ch_index[i] = -1;
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}
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else {
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int old_nindices = nindices;
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nindices *= 2;
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if (index >= nindices)
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nindices = index + 10;
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short *old_ch_index = ch_index;
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ch_index = new short[nindices];
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memcpy(ch_index, old_ch_index, sizeof(short)*old_nindices);
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for (int i = old_nindices; i < nindices; i++)
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ch_index[i] = -1;
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a_delete old_ch_index;
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}
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}
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void font::extend_ch()
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{
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if (ch == 0)
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ch = new font_char_metric[ch_size = 16];
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else {
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int old_ch_size = ch_size;
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ch_size *= 2;
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font_char_metric *old_ch = ch;
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ch = new font_char_metric[ch_size];
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memcpy(ch, old_ch, old_ch_size*sizeof(font_char_metric));
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a_delete old_ch;
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}
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}
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void font::compact()
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{
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int i;
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for (i = nindices - 1; i >= 0; i--)
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if (ch_index[i] >= 0)
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break;
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i++;
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if (i < nindices) {
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short *old_ch_index = ch_index;
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ch_index = new short[i];
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memcpy(ch_index, old_ch_index, i*sizeof(short));
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a_delete old_ch_index;
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nindices = i;
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}
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if (ch_used < ch_size) {
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font_char_metric *old_ch = ch;
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ch = new font_char_metric[ch_used];
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memcpy(ch, old_ch, ch_used*sizeof(font_char_metric));
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a_delete old_ch;
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ch_size = ch_used;
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}
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}
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void font::add_entry(int index, const font_char_metric &metric)
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{
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assert(index >= 0);
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if (index >= nindices)
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alloc_ch_index(index);
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assert(index < nindices);
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if (ch_used + 1 >= ch_size)
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extend_ch();
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assert(ch_used + 1 < ch_size);
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ch_index[index] = ch_used;
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ch[ch_used++] = metric;
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}
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void font::copy_entry(int new_index, int old_index)
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{
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assert(new_index >= 0 && old_index >= 0 && old_index < nindices);
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if (new_index >= nindices)
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alloc_ch_index(new_index);
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ch_index[new_index] = ch_index[old_index];
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}
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font *font::load_font(const char *s, int *not_found)
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{
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font *f = new font(s);
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if (!f->load(not_found)) {
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delete f;
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return 0;
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}
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return f;
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}
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static char *trim_arg(char *p)
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{
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if (!p)
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return 0;
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while (csspace(*p))
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p++;
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char *q = strchr(p, '\0');
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while (q > p && csspace(q[-1]))
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q--;
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*q = '\0';
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return p;
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}
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// If the font can't be found, then if not_found is NULL it will be set
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// to 1 otherwise a message will be printed.
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int font::load(int *not_found)
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{
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char *path;
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FILE *fp;
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if ((fp = open_file(name, &path)) == NULL) {
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if (not_found)
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*not_found = 1;
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else
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error("can't find font file `%1'", name);
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return 0;
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}
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text_file t(fp, path);
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t.skip_comments = 1;
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char *p;
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for (;;) {
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if (!t.next()) {
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t.error("missing charset command");
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return 0;
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}
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p = strtok(t.buf, WS);
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if (strcmp(p, "name") == 0) {
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}
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else if (strcmp(p, "spacewidth") == 0) {
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p = strtok(0, WS);
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int n;
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if (p == 0 || sscanf(p, "%d", &n) != 1 || n <= 0) {
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t.error("bad argument for spacewidth command");
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return 0;
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}
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space_width = n;
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}
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else if (strcmp(p, "slant") == 0) {
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p = strtok(0, WS);
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double n;
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if (p == 0 || sscanf(p, "%lf", &n) != 1 || n >= 90.0 || n <= -90.0) {
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t.error("bad argument for slant command", p);
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return 0;
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}
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slant = n;
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}
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else if (strcmp(p, "ligatures") == 0) {
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for (;;) {
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p = strtok(0, WS);
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if (p == 0 || strcmp(p, "0") == 0)
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break;
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if (strcmp(p, "ff") == 0)
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ligatures |= LIG_ff;
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else if (strcmp(p, "fi") == 0)
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ligatures |= LIG_fi;
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else if (strcmp(p, "fl") == 0)
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ligatures |= LIG_fl;
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else if (strcmp(p, "ffi") == 0)
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ligatures |= LIG_ffi;
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else if (strcmp(p, "ffl") == 0)
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ligatures |= LIG_ffl;
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else {
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t.error("unrecognised ligature `%1'", p);
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return 0;
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}
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}
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}
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else if (strcmp(p, "internalname") == 0) {
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p = strtok(0, WS);
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if (!p) {
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t.error("`internalname command requires argument");
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return 0;
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}
|
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internalname = new char[strlen(p) + 1];
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strcpy(internalname, p);
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|
}
|
|
else if (strcmp(p, "special") == 0) {
|
|
special = 1;
|
|
}
|
|
else if (strcmp(p, "kernpairs") != 0 && strcmp(p, "charset") != 0) {
|
|
char *command = p;
|
|
p = strtok(0, "\n");
|
|
handle_unknown_font_command(command, trim_arg(p), t.path, t.lineno);
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
char *command = p;
|
|
int had_charset = 0;
|
|
t.skip_comments = 0;
|
|
while (command) {
|
|
if (strcmp(command, "kernpairs") == 0) {
|
|
for (;;) {
|
|
if (!t.next()) {
|
|
command = 0;
|
|
break;
|
|
}
|
|
char *c1 = strtok(t.buf, WS);
|
|
if (c1 == 0)
|
|
continue;
|
|
char *c2 = strtok(0, WS);
|
|
if (c2 == 0) {
|
|
command = c1;
|
|
break;
|
|
}
|
|
p = strtok(0, WS);
|
|
if (p == 0) {
|
|
t.error("missing kern amount");
|
|
return 0;
|
|
}
|
|
int n;
|
|
if (sscanf(p, "%d", &n) != 1) {
|
|
t.error("bad kern amount `%1'", p);
|
|
return 0;
|
|
}
|
|
int i1 = name_to_index(c1);
|
|
if (i1 < 0) {
|
|
t.error("illegal character `%1'", c1);
|
|
return 0;
|
|
}
|
|
int i2 = name_to_index(c2);
|
|
if (i2 < 0) {
|
|
t.error("illegal character `%1'", c2);
|
|
return 0;
|
|
}
|
|
add_kern(i1, i2, n);
|
|
}
|
|
}
|
|
else if (strcmp(command, "charset") == 0) {
|
|
had_charset = 1;
|
|
int last_index = -1;
|
|
for (;;) {
|
|
if (!t.next()) {
|
|
command = 0;
|
|
break;
|
|
}
|
|
char *nm = strtok(t.buf, WS);
|
|
if (nm == 0)
|
|
continue; // I dont think this should happen
|
|
p = strtok(0, WS);
|
|
if (p == 0) {
|
|
command = nm;
|
|
break;
|
|
}
|
|
if (p[0] == '"') {
|
|
if (last_index == -1) {
|
|
t.error("first charset entry is duplicate");
|
|
return 0;
|
|
}
|
|
if (strcmp(nm, "---") == 0) {
|
|
t.error("unnamed character cannot be duplicate");
|
|
return 0;
|
|
}
|
|
int index = name_to_index(nm);
|
|
if (index < 0) {
|
|
t.error("illegal character `%1'", nm);
|
|
return 0;
|
|
}
|
|
copy_entry(index, last_index);
|
|
}
|
|
else {
|
|
font_char_metric metric;
|
|
metric.height = 0;
|
|
metric.depth = 0;
|
|
metric.pre_math_space = 0;
|
|
metric.italic_correction = 0;
|
|
metric.subscript_correction = 0;
|
|
int nparms = sscanf(p, "%d,%d,%d,%d,%d,%d",
|
|
&metric.width, &metric.height, &metric.depth,
|
|
&metric.italic_correction,
|
|
&metric.pre_math_space,
|
|
&metric.subscript_correction);
|
|
if (nparms < 1) {
|
|
t.error("bad width for `%1'", nm);
|
|
return 0;
|
|
}
|
|
p = strtok(0, WS);
|
|
if (p == 0) {
|
|
t.error("missing character type for `%1'", nm);
|
|
return 0;
|
|
}
|
|
int type;
|
|
if (sscanf(p, "%d", &type) != 1) {
|
|
t.error("bad character type for `%1'", nm);
|
|
return 0;
|
|
}
|
|
if (type < 0 || type > 255) {
|
|
t.error("character code `%1' out of range", type);
|
|
return 0;
|
|
}
|
|
metric.type = type;
|
|
p = strtok(0, WS);
|
|
if (p == 0) {
|
|
t.error("missing code for `%1'", nm);
|
|
return 0;
|
|
}
|
|
char *ptr;
|
|
metric.code = (int)strtol(p, &ptr, 0);
|
|
if (metric.code == 0 && ptr == p) {
|
|
t.error("bad code `%1' for character `%2'", p, nm);
|
|
return 0;
|
|
}
|
|
if (strcmp(nm, "---") == 0) {
|
|
last_index = number_to_index(metric.code);
|
|
add_entry(last_index, metric);
|
|
}
|
|
else {
|
|
last_index = name_to_index(nm);
|
|
if (last_index < 0) {
|
|
t.error("illegal character `%1'", nm);
|
|
return 0;
|
|
}
|
|
add_entry(last_index, metric);
|
|
copy_entry(number_to_index(metric.code), last_index);
|
|
}
|
|
}
|
|
}
|
|
if (last_index == -1) {
|
|
t.error("I didn't seem to find any characters");
|
|
return 0;
|
|
}
|
|
}
|
|
else {
|
|
t.error("unrecognised command `%1' after `kernpairs' or `charset' command", command);
|
|
return 0;
|
|
}
|
|
}
|
|
if (!had_charset) {
|
|
t.error("missing charset command");
|
|
return 0;
|
|
}
|
|
if (space_width == 0)
|
|
space_width = scale_round(unitwidth, res, 72*3*sizescale);
|
|
compact();
|
|
return 1;
|
|
}
|
|
|
|
static struct {
|
|
const char *command;
|
|
int *ptr;
|
|
} table[] = {
|
|
{ "res", &font::res },
|
|
{ "hor", &font::hor },
|
|
{ "vert", &font::vert },
|
|
{ "unitwidth", &font::unitwidth },
|
|
{ "paperwidth", &font::paperwidth },
|
|
{ "paperlength", &font::paperlength },
|
|
{ "spare1", &font::biggestfont },
|
|
{ "biggestfont", &font::biggestfont },
|
|
{ "spare2", &font::spare2 },
|
|
{ "sizescale", &font::sizescale }
|
|
};
|
|
|
|
|
|
int font::load_desc()
|
|
{
|
|
int nfonts = 0;
|
|
FILE *fp;
|
|
char *path;
|
|
if ((fp = open_file("DESC", &path)) == 0) {
|
|
error("can't find `DESC' file");
|
|
return 0;
|
|
}
|
|
text_file t(fp, path);
|
|
t.skip_comments = 1;
|
|
res = 0;
|
|
while (t.next()) {
|
|
char *p = strtok(t.buf, WS);
|
|
int found = 0;
|
|
int i;
|
|
for (i = 0; !found && i < sizeof(table)/sizeof(table[0]); i++)
|
|
if (strcmp(table[i].command, p) == 0)
|
|
found = 1;
|
|
if (found) {
|
|
char *q = strtok(0, WS);
|
|
if (!q) {
|
|
t.error("missing value for command `%1'", p);
|
|
return 0;
|
|
}
|
|
//int *ptr = &(this->*(table[i-1].ptr));
|
|
int *ptr = table[i-1].ptr;
|
|
if (sscanf(q, "%d", ptr) != 1) {
|
|
t.error("bad number `%1'", q);
|
|
return 0;
|
|
}
|
|
}
|
|
else if (strcmp("tcommand", p) == 0) {
|
|
tcommand = 1;
|
|
}
|
|
else if (strcmp("family", p) == 0) {
|
|
p = strtok(0, WS);
|
|
if (!p) {
|
|
t.error("family command requires an argument");
|
|
return 0;
|
|
}
|
|
char *tem = new char[strlen(p)+1];
|
|
strcpy(tem, p);
|
|
family = tem;
|
|
}
|
|
else if (strcmp("fonts", p) == 0) {
|
|
p = strtok(0, WS);
|
|
if (!p || sscanf(p, "%d", &nfonts) != 1 || nfonts <= 0) {
|
|
t.error("bad number of fonts `%1'", p);
|
|
return 0;
|
|
}
|
|
font_name_table = (const char **)new char *[nfonts+1];
|
|
for (int i = 0; i < nfonts; i++) {
|
|
p = strtok(0, WS);
|
|
while (p == 0) {
|
|
if (!t.next()) {
|
|
t.error("end of file while reading list of fonts");
|
|
return 0;
|
|
}
|
|
p = strtok(t.buf, WS);
|
|
}
|
|
char *temp = new char[strlen(p)+1];
|
|
strcpy(temp, p);
|
|
font_name_table[i] = temp;
|
|
}
|
|
p = strtok(0, WS);
|
|
if (p != 0) {
|
|
t.error("font count does not match number of fonts");
|
|
return 0;
|
|
}
|
|
font_name_table[nfonts] = 0;
|
|
}
|
|
else if (strcmp("sizes", p) == 0) {
|
|
int n = 16;
|
|
sizes = new int[n];
|
|
int i = 0;
|
|
for (;;) {
|
|
p = strtok(0, WS);
|
|
while (p == 0) {
|
|
if (!t.next()) {
|
|
t.error("list of sizes must be terminated by `0'");
|
|
return 0;
|
|
}
|
|
p = strtok(t.buf, WS);
|
|
}
|
|
int lower, upper;
|
|
switch (sscanf(p, "%d-%d", &lower, &upper)) {
|
|
case 1:
|
|
upper = lower;
|
|
// fall through
|
|
case 2:
|
|
if (lower <= upper && lower >= 0)
|
|
break;
|
|
// fall through
|
|
default:
|
|
t.error("bad size range `%1'", p);
|
|
return 0;
|
|
}
|
|
if (i + 2 > n) {
|
|
int *old_sizes = sizes;
|
|
sizes = new int[n*2];
|
|
memcpy(sizes, old_sizes, n*sizeof(int));
|
|
n *= 2;
|
|
a_delete old_sizes;
|
|
}
|
|
sizes[i++] = lower;
|
|
if (lower == 0)
|
|
break;
|
|
sizes[i++] = upper;
|
|
}
|
|
if (i == 1) {
|
|
t.error("must have some sizes");
|
|
return 0;
|
|
}
|
|
}
|
|
else if (strcmp("styles", p) == 0) {
|
|
int style_table_size = 5;
|
|
style_table = (const char **)new char *[style_table_size];
|
|
int j;
|
|
for (j = 0; j < style_table_size; j++)
|
|
style_table[j] = 0;
|
|
int i = 0;
|
|
for (;;) {
|
|
p = strtok(0, WS);
|
|
if (p == 0)
|
|
break;
|
|
// leave room for terminating 0
|
|
if (i + 1 >= style_table_size) {
|
|
const char **old_style_table = style_table;
|
|
style_table_size *= 2;
|
|
style_table = (const char **)new char*[style_table_size];
|
|
for (j = 0; j < i; j++)
|
|
style_table[j] = old_style_table[j];
|
|
for (; j < style_table_size; j++)
|
|
style_table[j] = 0;
|
|
a_delete old_style_table;
|
|
}
|
|
char *tem = new char[strlen(p) + 1];
|
|
strcpy(tem, p);
|
|
style_table[i++] = tem;
|
|
}
|
|
}
|
|
else if (strcmp("charset", p) == 0)
|
|
break;
|
|
else if (unknown_desc_command_handler) {
|
|
char *command = p;
|
|
p = strtok(0, "\n");
|
|
(*unknown_desc_command_handler)(command, trim_arg(p), t.path, t.lineno);
|
|
}
|
|
}
|
|
if (res == 0) {
|
|
t.error("missing `res' command");
|
|
return 0;
|
|
}
|
|
if (unitwidth == 0) {
|
|
t.error("missing `unitwidth' command");
|
|
return 0;
|
|
}
|
|
if (font_name_table == 0) {
|
|
t.error("missing `fonts' command");
|
|
return 0;
|
|
}
|
|
if (sizes == 0) {
|
|
t.error("missing `sizes' command");
|
|
return 0;
|
|
}
|
|
if (sizescale < 1) {
|
|
t.error("bad `sizescale' value");
|
|
return 0;
|
|
}
|
|
if (hor < 1) {
|
|
t.error("bad `hor' value");
|
|
return 0;
|
|
}
|
|
if (vert < 1) {
|
|
t.error("bad `vert' value");
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void font::handle_unknown_font_command(const char *, const char *,
|
|
const char *, int)
|
|
{
|
|
}
|
|
|
|
FONT_COMMAND_HANDLER
|
|
font::set_unknown_desc_command_handler(FONT_COMMAND_HANDLER func)
|
|
{
|
|
FONT_COMMAND_HANDLER prev = unknown_desc_command_handler;
|
|
unknown_desc_command_handler = func;
|
|
return prev;
|
|
}
|
|
|