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-rw-r--r--contrib/groff/libgroff/font.cc911
1 files changed, 911 insertions, 0 deletions
diff --git a/contrib/groff/libgroff/font.cc b/contrib/groff/libgroff/font.cc
new file mode 100644
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+++ b/contrib/groff/libgroff/font.cc
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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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include "errarg.h"
+#include "error.h"
+#include "cset.h"
+#include "font.h"
+#include "lib.h"
+
+const char *const WS = " \t\n\r";
+
+struct font_char_metric {
+ char type;
+ int code;
+ int width;
+ int height;
+ int depth;
+ int pre_math_space;
+ int italic_correction;
+ int subscript_correction;
+};
+
+struct font_kern_list {
+ int i1;
+ int i2;
+ int amount;
+ font_kern_list *next;
+
+ font_kern_list(int, int, int, font_kern_list * = 0);
+};
+
+struct font_widths_cache {
+ font_widths_cache *next;
+ int point_size;
+ int *width;
+
+ font_widths_cache(int, int, font_widths_cache *);
+ ~font_widths_cache();
+};
+
+/* text_file */
+
+struct text_file {
+ FILE *fp;
+ char *path;
+ int lineno;
+ int size;
+ int skip_comments;
+ char *buf;
+ text_file(FILE *fp, char *p);
+ ~text_file();
+ int next();
+ void error(const char *format,
+ const errarg &arg1 = empty_errarg,
+ const errarg &arg2 = empty_errarg,
+ const errarg &arg3 = empty_errarg);
+};
+
+text_file::text_file(FILE *p, char *s)
+: lineno(0), buf(0), size(0), skip_comments(1), fp(p), path(s)
+{
+}
+
+text_file::~text_file()
+{
+ a_delete buf;
+ a_delete path;
+ if (fp)
+ fclose(fp);
+}
+
+
+int text_file::next()
+{
+ if (fp == 0)
+ return 0;
+ if (buf == 0) {
+ buf = new char [128];
+ size = 128;
+ }
+ for (;;) {
+ int i = 0;
+ for (;;) {
+ int c = getc(fp);
+ if (c == EOF)
+ break;
+ if (illegal_input_char(c))
+ error("illegal input character code `%1'", int(c));
+ else {
+ if (i + 1 >= size) {
+ char *old_buf = buf;
+ buf = new char[size*2];
+ memcpy(buf, old_buf, size);
+ a_delete old_buf;
+ size *= 2;
+ }
+ buf[i++] = c;
+ if (c == '\n')
+ break;
+ }
+ }
+ if (i == 0)
+ break;
+ buf[i] = '\0';
+ lineno++;
+ char *ptr = buf;
+ while (csspace(*ptr))
+ ptr++;
+ if (*ptr != 0 && (!skip_comments || *ptr != '#'))
+ return 1;
+ }
+ return 0;
+}
+
+void text_file::error(const char *format,
+ const errarg &arg1,
+ const errarg &arg2,
+ const errarg &arg3)
+{
+ error_with_file_and_line(path, lineno, format, arg1, arg2, arg3);
+}
+
+
+/* font functions */
+
+font::font(const char *s)
+: special(0), ligatures(0), kern_hash_table(0), space_width(0),
+ ch(0), ch_used(0), ch_size(0), ch_index(0), nindices(0), widths_cache(0)
+{
+ name = new char[strlen(s) + 1];
+ strcpy(name, s);
+ internalname = 0;
+ slant = 0.0;
+ // load(); // for testing
+}
+
+font::~font()
+{
+ a_delete ch;
+ a_delete ch_index;
+ if (kern_hash_table) {
+ for (int i = 0; i < KERN_HASH_TABLE_SIZE; i++) {
+ font_kern_list *kerns = kern_hash_table[i];
+ while (kerns) {
+ font_kern_list *tem = kerns;
+ kerns = kerns->next;
+ delete tem;
+ }
+ }
+ a_delete kern_hash_table;
+ }
+ a_delete name;
+ a_delete internalname;
+ while (widths_cache) {
+ font_widths_cache *tem = widths_cache;
+ widths_cache = widths_cache->next;
+ delete tem;
+ }
+}
+
+static int scale_round(int n, int x, int y)
+{
+ assert(x >= 0 && y > 0);
+ int y2 = y/2;
+ if (x == 0)
+ return 0;
+ if (n >= 0) {
+ if (n <= (INT_MAX - y2)/x)
+ return (n*x + y2)/y;
+ return int(n*double(x)/double(y) + .5);
+ }
+ else {
+ if (-(unsigned)n <= (-(unsigned)INT_MIN - y2)/x)
+ return (n*x - y2)/y;
+ return int(n*double(x)/double(y) - .5);
+ }
+}
+
+inline int font::scale(int w, int sz)
+{
+ return sz == unitwidth ? w : scale_round(w, sz, unitwidth);
+}
+
+int font::get_skew(int c, int point_size, int sl)
+{
+ int h = get_height(c, point_size);
+ return int(h*tan((slant+sl)*PI/180.0) + .5);
+}
+
+int font::contains(int c)
+{
+ return c >= 0 && c < nindices && ch_index[c] >= 0;
+}
+
+int font::is_special()
+{
+ return special;
+}
+
+font_widths_cache::font_widths_cache(int ps, int ch_size,
+ font_widths_cache *p = 0)
+: next(p), point_size(ps)
+{
+ width = new int[ch_size];
+ for (int i = 0; i < ch_size; i++)
+ width[i] = -1;
+}
+
+font_widths_cache::~font_widths_cache()
+{
+ a_delete width;
+}
+
+int font::get_width(int c, int point_size)
+{
+ assert(c >= 0 && c < nindices);
+ int i = ch_index[c];
+ assert(i >= 0);
+
+ if (point_size == unitwidth)
+ return ch[i].width;
+
+ if (!widths_cache)
+ widths_cache = new font_widths_cache(point_size, ch_size);
+ else if (widths_cache->point_size != point_size) {
+ font_widths_cache **p;
+ for (p = &widths_cache; *p; p = &(*p)->next)
+ if ((*p)->point_size == point_size)
+ break;
+ if (*p) {
+ font_widths_cache *tem = *p;
+ *p = (*p)->next;
+ tem->next = widths_cache;
+ widths_cache = tem;
+ }
+ else
+ widths_cache = new font_widths_cache(point_size, ch_size, widths_cache);
+ }
+ int &w = widths_cache->width[i];
+ if (w < 0)
+ w = scale(ch[i].width, point_size);
+ return w;
+}
+
+int font::get_height(int c, int point_size)
+{
+ assert(c >= 0 && c < nindices && ch_index[c] >= 0);
+ return scale(ch[ch_index[c]].height, point_size);
+}
+
+int font::get_depth(int c, int point_size)
+{
+ assert(c >= 0 && c < nindices && ch_index[c] >= 0);
+ return scale(ch[ch_index[c]].depth, point_size);
+}
+
+int font::get_italic_correction(int c, int point_size)
+{
+ assert(c >= 0 && c < nindices && ch_index[c] >= 0);
+ return scale(ch[ch_index[c]].italic_correction, point_size);
+}
+
+int font::get_left_italic_correction(int c, int point_size)
+{
+ assert(c >= 0 && c < nindices && ch_index[c] >= 0);
+ return scale(ch[ch_index[c]].pre_math_space, point_size);
+}
+
+int font::get_subscript_correction(int c, int point_size)
+{
+ assert(c >= 0 && c < nindices && ch_index[c] >= 0);
+ return scale(ch[ch_index[c]].subscript_correction, point_size);
+}
+
+int font::get_space_width(int point_size)
+{
+ return scale(space_width, point_size);
+}
+
+font_kern_list::font_kern_list(int c1, int c2, int n, font_kern_list *p)
+ : i1(c1), i2(c2), amount(n), next(p)
+{
+}
+
+inline int font::hash_kern(int i1, int i2)
+{
+ int n = ((i1 << 10) + i2) % KERN_HASH_TABLE_SIZE;
+ return n < 0 ? -n : n;
+}
+
+void font::add_kern(int i1, int i2, int amount)
+{
+ if (!kern_hash_table) {
+ kern_hash_table = new font_kern_list *[KERN_HASH_TABLE_SIZE];
+ for (int i = 0; i < KERN_HASH_TABLE_SIZE; i++)
+ kern_hash_table[i] = 0;
+ }
+ font_kern_list **p = kern_hash_table + hash_kern(i1, i2);
+ *p = new font_kern_list(i1, i2, amount, *p);
+}
+
+int font::get_kern(int i1, int i2, int point_size)
+{
+ if (kern_hash_table) {
+ for (font_kern_list *p = kern_hash_table[hash_kern(i1, i2)]; p; p = p->next)
+ if (i1 == p->i1 && i2 == p->i2)
+ return scale(p->amount, point_size);
+ }
+ return 0;
+}
+
+int font::has_ligature(int mask)
+{
+ return mask & ligatures;
+}
+
+int font::get_character_type(int c)
+{
+ assert(c >= 0 && c < nindices && ch_index[c] >= 0);
+ return ch[ch_index[c]].type;
+}
+
+int font::get_code(int c)
+{
+ assert(c >= 0 && c < nindices && ch_index[c] >= 0);
+ return ch[ch_index[c]].code;
+}
+
+const char *font::get_name()
+{
+ return name;
+}
+
+const char *font::get_internal_name()
+{
+ return internalname;
+}
+
+void font::alloc_ch_index(int index)
+{
+ if (nindices == 0) {
+ nindices = 128;
+ if (index >= nindices)
+ nindices = index + 10;
+ ch_index = new short[nindices];
+ for (int i = 0; i < nindices; i++)
+ ch_index[i] = -1;
+ }
+ else {
+ int old_nindices = nindices;
+ nindices *= 2;
+ if (index >= nindices)
+ nindices = index + 10;
+ short *old_ch_index = ch_index;
+ ch_index = new short[nindices];
+ memcpy(ch_index, old_ch_index, sizeof(short)*old_nindices);
+ for (int i = old_nindices; i < nindices; i++)
+ ch_index[i] = -1;
+ a_delete old_ch_index;
+ }
+}
+
+void font::extend_ch()
+{
+ if (ch == 0)
+ ch = new font_char_metric[ch_size = 16];
+ else {
+ int old_ch_size = ch_size;
+ ch_size *= 2;
+ font_char_metric *old_ch = ch;
+ ch = new font_char_metric[ch_size];
+ memcpy(ch, old_ch, old_ch_size*sizeof(font_char_metric));
+ a_delete old_ch;
+ }
+}
+
+void font::compact()
+{
+ int i;
+ for (i = nindices - 1; i >= 0; i--)
+ if (ch_index[i] >= 0)
+ break;
+ i++;
+ if (i < nindices) {
+ short *old_ch_index = ch_index;
+ ch_index = new short[i];
+ memcpy(ch_index, old_ch_index, i*sizeof(short));
+ a_delete old_ch_index;
+ nindices = i;
+ }
+ if (ch_used < ch_size) {
+ font_char_metric *old_ch = ch;
+ ch = new font_char_metric[ch_used];
+ memcpy(ch, old_ch, ch_used*sizeof(font_char_metric));
+ a_delete old_ch;
+ ch_size = ch_used;
+ }
+}
+
+void font::add_entry(int index, const font_char_metric &metric)
+{
+ assert(index >= 0);
+ if (index >= nindices)
+ alloc_ch_index(index);
+ assert(index < nindices);
+ if (ch_used + 1 >= ch_size)
+ extend_ch();
+ assert(ch_used + 1 < ch_size);
+ ch_index[index] = ch_used;
+ ch[ch_used++] = metric;
+}
+
+void font::copy_entry(int new_index, int old_index)
+{
+ assert(new_index >= 0 && old_index >= 0 && old_index < nindices);
+ if (new_index >= nindices)
+ alloc_ch_index(new_index);
+ ch_index[new_index] = ch_index[old_index];
+}
+
+font *font::load_font(const char *s, int *not_found)
+{
+ font *f = new font(s);
+ if (!f->load(not_found)) {
+ delete f;
+ return 0;
+ }
+ return f;
+}
+
+static char *trim_arg(char *p)
+{
+ if (!p)
+ return 0;
+ while (csspace(*p))
+ p++;
+ char *q = strchr(p, '\0');
+ while (q > p && csspace(q[-1]))
+ q--;
+ *q = '\0';
+ return p;
+}
+
+// If the font can't be found, then if not_found is NULL it will be set
+// to 1 otherwise a message will be printed.
+
+int font::load(int *not_found)
+{
+ char *path;
+ FILE *fp;
+ if ((fp = open_file(name, &path)) == NULL) {
+ if (not_found)
+ *not_found = 1;
+ else
+ error("can't find font file `%1'", name);
+ return 0;
+ }
+ text_file t(fp, path);
+ t.skip_comments = 1;
+ char *p;
+ for (;;) {
+ if (!t.next()) {
+ t.error("missing charset command");
+ return 0;
+ }
+ p = strtok(t.buf, WS);
+ if (strcmp(p, "name") == 0) {
+ }
+ else if (strcmp(p, "spacewidth") == 0) {
+ p = strtok(0, WS);
+ int n;
+ if (p == 0 || sscanf(p, "%d", &n) != 1 || n <= 0) {
+ t.error("bad argument for spacewidth command");
+ return 0;
+ }
+ space_width = n;
+ }
+ else if (strcmp(p, "slant") == 0) {
+ p = strtok(0, WS);
+ double n;
+ if (p == 0 || sscanf(p, "%lf", &n) != 1 || n >= 90.0 || n <= -90.0) {
+ t.error("bad argument for slant command", p);
+ return 0;
+ }
+ slant = n;
+ }
+ else if (strcmp(p, "ligatures") == 0) {
+ for (;;) {
+ p = strtok(0, WS);
+ if (p == 0 || strcmp(p, "0") == 0)
+ break;
+ if (strcmp(p, "ff") == 0)
+ ligatures |= LIG_ff;
+ else if (strcmp(p, "fi") == 0)
+ ligatures |= LIG_fi;
+ else if (strcmp(p, "fl") == 0)
+ ligatures |= LIG_fl;
+ else if (strcmp(p, "ffi") == 0)
+ ligatures |= LIG_ffi;
+ else if (strcmp(p, "ffl") == 0)
+ ligatures |= LIG_ffl;
+ else {
+ t.error("unrecognised ligature `%1'", p);
+ return 0;
+ }
+ }
+ }
+ else if (strcmp(p, "internalname") == 0) {
+ p = strtok(0, WS);
+ if (!p) {
+ t.error("`internalname command requires argument");
+ return 0;
+ }
+ internalname = new char[strlen(p) + 1];
+ strcpy(internalname, p);
+ }
+ 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;
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-14 16:58:21 +0000