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- // -*- C++ -*-
- /* Copyright (C) 1989, 1990, 1991 Free Software Foundation, Inc.
- Written by James Clark (jjc@jclark.uucp)
-
- 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 1, 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 LICENSE. If not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "driver.h"
- #include "stringclass.h"
- #include "cset.h"
-
- extern "C" {
- // Sun's stdlib.h fails to declare this.
- char *mktemp(char *);
- }
-
- static int landscape_flag = 0;
- static int ncopies = 1;
- static int linewidth = -1;
-
- #define DEFAULT_LINEWIDTH 40 /* in ems/1000 */
- #define FILL_MAX 1000
-
- // Maximum number of definitions in the prologue (used for sizing the
- // dictionary.)
-
- const int MAX_PROLOGUE_DEFS = 50;
- const char *const dict_name = "grops";
- const char *const defs_dict_name = "DEFS";
- const int DEFS_DICT_SPARE = 50;
-
- #define PROLOGUE "prologue"
-
- double degrees(double r)
- {
- return r*180.0/M_PI;
- }
-
- double radians(double d)
- {
- return d*M_PI/180.0;
- }
-
- inline double transform_fill(int fill)
- {
- return 1 - fill/double(FILL_MAX);
- }
-
- class ps_output {
- public:
- ps_output(FILE *, int max_line_length);
- ps_output &put_string(const char *, int);
- ps_output &put_number(int);
- ps_output &put_fix_number(int);
- ps_output &put_float(double);
- ps_output &put_symbol(const char *);
- ps_output &put_literal_symbol(const char *);
- ps_output &set_fixed_point(int);
- ps_output &simple_comment(const char *);
- ps_output &begin_comment(const char *);
- ps_output &comment_arg(const char *);
- ps_output &end_comment();
- ps_output &set_file(FILE *);
- ps_output &include_file(FILE *);
- ps_output ©_file(FILE *);
- ps_output &end_line();
- ps_output &put_delimiter(char);
- ps_output &special(const char *);
- private:
- FILE *fp;
- int col;
- int max_line_length; // not including newline
- int need_space;
- int fixed_point;
- };
-
- ps_output::ps_output(FILE *f, int n)
- : fp(f), max_line_length(n), col(0), need_space(0), fixed_point(0)
- {
- }
-
- ps_output &ps_output::set_file(FILE *f)
- {
- fp = f;
- col = 0;
- return *this;
- }
-
- ps_output &ps_output::include_file(FILE *infp)
- {
- if (col != 0)
- putc('\n', fp);
- int c;
- #ifdef BROKEN_SPOOLER
- // Strip the first line if it's a comment. I believe
- // some spoolers get confused by %! in the middle of a file.
- if ((c = getc(infp)) == '%') {
- while ((c = getc(infp)) != '\n' && c != '\r' && c != EOF)
- ;
- }
- else if (c != EOF)
- ungetc(c, infp);
- #endif /* BROKEN_SPOOLER */
- // We strip out lines beginning with STRIPENDUM.
- #ifdef BROKEN_SPOOLER
- #define STRIPENDUM "%%"
- #else
- #define STRIPENDUM "%%IncludeFont:"
- #endif
- // Index into STRIPENDUM of next character to be matched.
- int match = 0;
- while ((c = getc(infp)) != EOF) {
- if (match >= 0) {
- if (c == STRIPENDUM[match]) {
- if (++match == sizeof(STRIPENDUM) - 1) {
- match = -1;
- while ((c = getc(infp)) != EOF)
- if (c == '\r' || c == '\n') {
- match = 0;
- break;
- }
- }
- }
- else {
- for (int i = 0; i < match; i++)
- putc(STRIPENDUM[i], fp);
- putc(c, fp);
- match = (c == '\n' || c == '\r' ? 0 : -1);
- }
- }
- else {
- putc(c, fp);
- match = (c == '\n' || c == '\r' ? 0 : -1);
- }
- }
- for (int i = 0; i < match; i++)
- putc(STRIPENDUM[i], fp);
- if (match != 0)
- putc('\n', fp);
- int lastc = '\n';
- while ((c = getc(infp)) != EOF) {
- putc(c, fp);
- lastc = c;
- }
- if (lastc != '\n')
- putc('\n', fp);
- col = 0;
- need_space = 0;
- return *this;
- }
-
- ps_output &ps_output::copy_file(FILE *infp)
- {
- int c;
- while ((c = getc(infp)) != EOF)
- putc(c, fp);
- return *this;
- }
-
- ps_output &ps_output::end_line()
- {
- if (col != 0) {
- putc('\n', fp);
- col = 0;
- }
- return *this;
- }
-
- ps_output &ps_output::special(const char *s)
- {
- if (s == 0 || *s == '\0')
- return *this;
- if (col != 0) {
- putc('\n', fp);
- col = 0;
- }
- fputs(s, fp);
- if (strchr(s, '\0')[-1] != '\n')
- putc('\n', fp);
- need_space = 0;
- return *this;
- }
-
- ps_output &ps_output::simple_comment(const char *s)
- {
- if (col != 0)
- putc('\n', fp);
- putc('%', fp);
- putc('%', fp);
- fputs(s, fp);
- putc('\n', fp);
- col = 0;
- need_space = 0;
- return *this;
- }
-
- ps_output &ps_output::begin_comment(const char *s)
- {
- if (col != 0)
- putc('\n', fp);
- putc('%', fp);
- putc('%', fp);
- fputs(s, fp);
- col = 2 + strlen(s);
- return *this;
- }
-
- ps_output &ps_output::end_comment()
- {
- if (col != 0) {
- putc('\n', fp);
- col = 0;
- }
- need_space = 0;
- return *this;
- }
-
- ps_output &ps_output::comment_arg(const char *s)
- {
- int len = strlen(s);
- if (col + len + 1 > max_line_length) {
- putc('\n', fp);
- fputs("%%+", fp);
- col = 3;
- }
- putc(' ', fp);
- fputs(s, fp);
- col += len + 1;
- return *this;
- }
-
- ps_output &ps_output::set_fixed_point(int n)
- {
- assert(n >= 0 && n <= 10);
- fixed_point = n;
- return *this;
- }
-
- ps_output &ps_output::put_delimiter(char c)
- {
- if (col + 1 > max_line_length) {
- putc('\n', fp);
- col = 0;
- }
- putc(c, fp);
- col++;
- need_space = 0;
- return *this;
- }
-
- ps_output &ps_output::put_string(const char *s, int n)
- {
- int len = 0;
- for (int i = 0; i < n; i++) {
- char c = s[i];
- if (isascii(c) && isprint(c)) {
- if (c == '(' || c == ')' || c == '\\')
- len += 2;
- else
- len += 1;
- }
- else
- len += 4;
- }
- if (len > n*2) {
- if (col + n*2 + 2 > max_line_length && n*2 + 2 <= max_line_length) {
- putc('\n', fp);
- col = 0;
- }
- if (col + 1 > max_line_length) {
- putc('\n', fp);
- col = 0;
- }
- putc('<', fp);
- col++;
- for (i = 0; i < n; i++) {
- if (col + 2 > max_line_length) {
- putc('\n', fp);
- col = 0;
- }
- fprintf(fp, "%02x", s[i] & 0377);
- col += 2;
- }
- putc('>', fp);
- col++;
- }
- else {
- if (col + len + 2 > max_line_length && len + 2 <= max_line_length) {
- putc('\n', fp);
- col = 0;
- }
- if (col + 2 > max_line_length) {
- putc('\n', fp);
- col = 0;
- }
- putc('(', fp);
- col++;
- for (i = 0; i < n; i++) {
- char c = s[i];
- if (isascii(c) && isprint(c)) {
- if (c == '(' || c == ')' || c == '\\')
- len = 2;
- else
- len = 1;
- }
- else
- len = 4;
- if (col + len + 1 > max_line_length) {
- putc('\\', fp);
- putc('\n', fp);
- col = 0;
- }
- switch (len) {
- case 1:
- putc(c, fp);
- break;
- case 2:
- putc('\\', fp);
- putc(c, fp);
- break;
- case 4:
- fprintf(fp, "\\%03o", c & 0377);
- break;
- default:
- assert(0);
- }
- col += len;
- }
- putc(')', fp);
- col++;
- }
- need_space = 0;
- return *this;
- }
-
- ps_output &ps_output::put_number(int n)
- {
- char buf[1 + INT_DIGITS + 1];
- sprintf(buf, "%d", n);
- int len = strlen(buf);
- if (col > 0 && col + len + need_space > max_line_length) {
- putc('\n', fp);
- col = 0;
- need_space = 0;
- }
- if (need_space) {
- putc(' ', fp);
- col++;
- }
- fputs(buf, fp);
- col += len;
- need_space = 1;
- return *this;
- }
-
-
- ps_output &ps_output::put_fix_number(int i)
- {
- const char *p = iftoa(i, fixed_point);
- int len = strlen(p);
- if (col > 0 && col + len + need_space > max_line_length) {
- putc('\n', fp);
- col = 0;
- need_space = 0;
- }
- if (need_space) {
- putc(' ', fp);
- col++;
- }
- fputs(p, fp);
- col += len;
- need_space = 1;
- return *this;
- }
-
- ps_output &ps_output::put_float(double d)
- {
- char buf[128];
- sprintf(buf, "%.4f", d);
- int len = strlen(buf);
- if (col > 0 && col + len + need_space > max_line_length) {
- putc('\n', fp);
- col = 0;
- need_space = 0;
- }
- if (need_space) {
- putc(' ', fp);
- col++;
- }
- fputs(buf, fp);
- col += len;
- need_space = 1;
- return *this;
- }
-
- ps_output &ps_output::put_symbol(const char *s)
- {
- int len = strlen(s);
- if (col > 0 && col + len + need_space > max_line_length) {
- putc('\n', fp);
- col = 0;
- need_space = 0;
- }
- if (need_space) {
- putc(' ', fp);
- col++;
- }
- fputs(s, fp);
- col += len;
- need_space = 1;
- return *this;
- }
-
- ps_output &ps_output::put_literal_symbol(const char *s)
- {
- int len = strlen(s);
- if (col > 0 && col + len + 1 > max_line_length) {
- putc('\n', fp);
- col = 0;
- }
- putc('/', fp);
- fputs(s, fp);
- col += len + 1;
- need_space = 1;
- return *this;
- }
-
- class ps_font : public font {
- ps_font(const char *);
- public:
- int encoding_index;
- char *encoding;
- char *reencoded_name;
- ~ps_font();
- void handle_unknown_font_command(int argc, const char **argv);
- static ps_font *load_ps_font(const char *);
- };
-
- ps_font *ps_font::load_ps_font(const char *s)
- {
- ps_font *f = new ps_font(s);
- if (!f->load()) {
- delete f;
- return 0;
- }
- return f;
- }
-
- ps_font::ps_font(const char *nm)
- : font(nm), encoding(0), reencoded_name(0), encoding_index(-1)
- {
- }
-
- ps_font::~ps_font()
- {
- delete encoding;
- delete reencoded_name;
- }
-
- void ps_font::handle_unknown_font_command(int argc, const char **argv)
- {
- if (strcmp(argv[0], "encoding") == 0) {
- if (argc != 2)
- error("`encoding' command requires exactly 1 argument");
- else
- encoding = strsave(argv[1]);
- }
- }
-
-
- struct style {
- font *f;
- int point_size;
- int height;
- int slant;
- style();
- style(font *, int, int, int);
- int operator==(const style &) const;
- int operator!=(const style &) const;
- };
-
- style::style() : f(0)
- {
- }
-
- style::style(font *p, int sz, int h, int sl)
- : f(p), point_size(sz), height(h), slant(sl)
- {
- }
-
- int style::operator==(const style &s) const
- {
- return (f == s.f && point_size == s.point_size
- && height == s.height && slant == s.slant);
- }
-
- int style::operator!=(const style &s) const
- {
- return !(*this == s);
- }
-
- struct depend_list;
-
- struct document_font {
- enum { LISTED = 01, NEEDED = 02, SUPPLIED = 04 };
- char *name;
- char *filename;
- int flags;
- document_font *next;
- depend_list *depends_on;
- int mark;
- document_font(const char *);
- ~document_font();
- void download(ps_output &);
- };
-
- struct depend_list {
- document_font *p;
- depend_list *next;
- };
-
-
- class ps_printer : public printer {
- FILE *tempfp;
- ps_output out;
- int res;
- int space_char_index;
- int pages_output;
- int paper_length;
- int equalise_spaces;
- enum { SBUF_SIZE = 256 };
- char sbuf[SBUF_SIZE];
- int sbuf_len;
- int sbuf_start_hpos;
- int sbuf_vpos;
- int sbuf_end_hpos;
- int sbuf_space_width;
- int sbuf_space_count;
- int sbuf_space_diff_count;
- int sbuf_space_code;
- int sbuf_kern;
- style sbuf_style;
- style output_style;
- int output_hpos;
- int output_vpos;
- int output_draw_point_size;
- int line_thickness;
- int output_line_thickness;
- int fill;
- unsigned char output_space_code;
- enum { MAX_DEFINED_STYLES = 50 };
- style defined_styles[MAX_DEFINED_STYLES];
- int ndefined_styles;
- int next_encoding_index;
- string defs;
- int ndefs;
- document_font *doc_fonts;
-
- void flush_sbuf();
- void set_style(const style &);
- void set_space_code(unsigned char c);
- int set_encoding_index(ps_font *);
- void do_exec(char *, const environment *);
- void do_import(char *, const environment *);
- void do_def(char *, const environment *);
- void do_mdef(char *, const environment *);
- void do_file(char *, const environment *);
- void set_line_thickness(const environment *);
- void fill_path();
- void merge_download_fonts();
- void merge_import_fonts(FILE *);
- void merge_ps_fonts();
- void print_font_comment();
- void print_supplied_font_comment();
- void print_needed_font_comment();
- void print_include_font_comments();
- document_font *lookup_doc_font(const char *);
- void encode_fonts();
- void download_fonts();
- void define_encoding(const char *, int);
- void reencode_font(ps_font *);
- void read_download_file();
- public:
- ps_printer();
- ~ps_printer();
- void set_char(int i, font *f, const environment *env, int w);
- void draw(int code, int *p, int np, const environment *env);
- void begin_page(int);
- void end_page();
- void special(char *arg, const environment *env);
- font *make_font(const char *);
- void end_of_line();
- };
-
- ps_printer::ps_printer()
- : pages_output(0),
- sbuf_len(0),
- output_hpos(-1),
- output_vpos(-1),
- out(0, 79),
- ndefined_styles(0),
- next_encoding_index(0),
- line_thickness(-1),
- fill(FILL_MAX + 1),
- ndefs(0),
- doc_fonts(0)
- {
- static char temp_filename[] = "/tmp/gropsXXXXXX";
- mktemp(temp_filename);
- tempfp = fopen(temp_filename, "w+");
- if (tempfp == 0)
- fatal("can't open temporary file `%1': %2",
- temp_filename, strerror(errno));
- if (unlink(temp_filename) < 0)
- error("can't unlink `%1': %2", temp_filename, strerror(errno));
- out.set_file(tempfp);
- if (linewidth < 0)
- linewidth = DEFAULT_LINEWIDTH;
- if (font::hor != 1)
- fatal("horizontal resolution must be 1");
- if (font::vert != 1)
- fatal("vertical resolution must be 1");
- if (font::res % (font::sizescale*72) != 0)
- fatal("res must be a multiple of 72*sizescale");
- int r = font::res;
- int point = 0;
- while (r % 10 == 0) {
- r /= 10;
- point++;
- }
- res = r;
- out.set_fixed_point(point);
- space_char_index = font::name_to_index("space");
- paper_length = font::paperlength;
- if (paper_length == 0)
- paper_length = 11*font::res;
- equalise_spaces = font::res >= 72000;
- }
-
- int ps_printer::set_encoding_index(ps_font *f)
- {
- if (f->encoding_index >= 0)
- return f->encoding_index;
- for (font_pointer_list *p = font_list; p; p = p->next)
- if (p->p != f) {
- char *encoding = ((ps_font *)p->p)->encoding;
- int encoding_index = ((ps_font *)p->p)->encoding_index;
- if (encoding != 0 && encoding_index >= 0
- && strcmp(f->encoding, encoding) == 0) {
- return f->encoding_index = encoding_index;
- }
- }
- return f->encoding_index = next_encoding_index++;
- }
-
- void ps_printer::set_char(int i, font *f, const environment *env, int w)
- {
- if (i == space_char_index)
- return;
- unsigned char code = f->get_code(i);
- style sty(f, env->size, env->height, env->slant);
- if (sty.slant != 0) {
- if (sty.slant > 80 || sty.slant < -80) {
- error("silly slant `%1' degrees", sty.slant);
- sty.slant = 0;
- }
- }
- if (sbuf_len > 0) {
- if (sbuf_len < SBUF_SIZE
- && sty == sbuf_style
- && sbuf_vpos == env->vpos) {
- if (sbuf_end_hpos == env->hpos) {
- sbuf[sbuf_len++] = code;
- sbuf_end_hpos += w + sbuf_kern;
- return;
- }
- if (sbuf_len == 1 && sbuf_kern == 0) {
- sbuf_kern = env->hpos - sbuf_end_hpos;
- sbuf_end_hpos = env->hpos + sbuf_kern + w;
- sbuf[sbuf_len++] = code;
- return;
- }
- /* If sbuf_end_hpos - sbuf_kern == env->hpos, we are better off
- starting a new string. */
- if (sbuf_len < SBUF_SIZE - 1 && env->hpos >= sbuf_end_hpos
- && (sbuf_kern == 0 || sbuf_end_hpos - sbuf_kern != env->hpos)) {
- if (sbuf_space_code < 0) {
- if (f->contains(space_char_index)) {
- sbuf_space_code = f->get_code(space_char_index);
- sbuf_space_width = env->hpos - sbuf_end_hpos;
- sbuf_end_hpos = env->hpos + w + sbuf_kern;
- sbuf[sbuf_len++] = sbuf_space_code;
- sbuf[sbuf_len++] = code;
- sbuf_space_count++;
- return;
- }
- }
- else {
- int diff = env->hpos - sbuf_end_hpos - sbuf_space_width;
- if (diff == 0 || (equalise_spaces && (diff == 1 || diff == -1))) {
- sbuf_end_hpos = env->hpos + w + sbuf_kern;
- sbuf[sbuf_len++] = sbuf_space_code;
- sbuf[sbuf_len++] = code;
- sbuf_space_count++;
- if (diff == 1)
- sbuf_space_diff_count++;
- else if (diff == -1)
- sbuf_space_diff_count--;
- return;
- }
- }
- }
- }
- flush_sbuf();
- }
- sbuf_len = 1;
- sbuf[0] = code;
- sbuf_end_hpos = env->hpos + w;
- sbuf_start_hpos = env->hpos;
- sbuf_vpos = env->vpos;
- sbuf_style = sty;
- sbuf_space_code = -1;
- sbuf_space_width = 0;
- sbuf_space_count = sbuf_space_diff_count = 0;
- sbuf_kern = 0;
- }
-
- int is_small_h(int n)
- {
- return n < (font::res*2)/72 && n > -(font::res*10)/72;
- }
-
- int is_small_v(int n)
- {
- return n < (font::res*4)/72 && n > -(font::res*4)/72;
- }
-
- static char *make_encoding_name(int encoding_index)
- {
- static char buf[3 + INT_DIGITS + 1];
- sprintf(buf, "ENC%d", encoding_index);
- return buf;
- }
-
- const char *const WS = " \t\n\r";
-
- void ps_printer::define_encoding(const char *encoding, int encoding_index)
- {
- char *vec[256];
- for (int i = 0; i < 256; i++)
- vec[i] = 0;
- char *path;
- FILE *fp = font::open_file(encoding, &path);
- if (fp == 0)
- fatal("can't open encoding file `%1'", encoding);
- int lineno = 1;
- char buf[256];
- while (fgets(buf, 512, fp) != 0) {
- char *p = buf;
- while (isascii(*p) && isspace(*p))
- p++;
- if (*p != '#' && *p != '\0' && (p = strtok(buf, WS)) != 0) {
- char *q = strtok(0, WS);
- int n;
- if (q == 0 || sscanf(q, "%d", &n) != 1 || n < 0 || n >= 256)
- fatal_with_file_and_line(path, lineno, "bad second field");
- vec[n] = new char[strlen(p) + 1];
- strcpy(vec[n], p);
- }
- lineno++;
- }
- delete path;
- out.put_literal_symbol(make_encoding_name(encoding_index));
- out.put_delimiter('[');
- for (i = 0; i < 256; i++) {
- if (vec[i] == 0)
- out.put_literal_symbol(".notdef");
- else
- out.put_literal_symbol(vec[i]);
- }
- out.put_delimiter(']').put_symbol("def");
- }
-
- void ps_printer::reencode_font(ps_font *f)
- {
- out.put_literal_symbol(f->reencoded_name)
- .put_symbol(make_encoding_name(f->encoding_index))
- .put_literal_symbol(f->get_internal_name())
- .put_symbol("RE");
- }
-
- void ps_printer::encode_fonts()
- {
- if (next_encoding_index == 0)
- return;
- char *done_encoding = new char[next_encoding_index];
- for (int i = 0; i < next_encoding_index; i++)
- done_encoding[i] = 0;
- for (font_pointer_list *f = font_list; f; f = f->next) {
- int encoding_index = ((ps_font *)f->p)->encoding_index;
- if (encoding_index >= 0) {
- assert(encoding_index < next_encoding_index);
- if (!done_encoding[encoding_index]) {
- done_encoding[encoding_index] = 1;
- define_encoding(((ps_font *)f->p)->encoding, encoding_index);
- }
- reencode_font((ps_font *)f->p);
- }
- }
- delete done_encoding;
- }
-
- void ps_printer::set_style(const style &sty)
- {
- char buf[1 + INT_DIGITS + 1];
- for (int i = 0; i < ndefined_styles; i++)
- if (sty == defined_styles[i]) {
- sprintf(buf, "F%d", i);
- out.put_symbol(buf);
- return;
- }
- if (ndefined_styles >= MAX_DEFINED_STYLES)
- ndefined_styles = 0;
- sprintf(buf, "F%d", ndefined_styles);
- out.put_literal_symbol(buf);
- const char *psname = sty.f->get_internal_name();
- if (psname == 0)
- fatal("no internalname specified for font `%1'", sty.f->get_name());
- char *encoding = ((ps_font *)sty.f)->encoding;
- if (encoding != 0) {
- char *s = ((ps_font *)sty.f)->reencoded_name;
- if (s == 0) {
- int ei = set_encoding_index((ps_font *)sty.f);
- char *tem = new char[strlen(psname) + 1 + INT_DIGITS + 1];
- sprintf(tem, "%s@%d", psname, ei);
- psname = tem;
- ((ps_font *)sty.f)->reencoded_name = tem;
- }
- else
- psname = s;
- }
- out.put_fix_number((font::res/(72*font::sizescale))*sty.point_size);
- if (sty.height != 0 || sty.slant != 0) {
- int h = sty.height == 0 ? sty.point_size : sty.height;
- h *= font::res/(72*font::sizescale);
- int c = int(h*tan(radians(sty.slant)) + .5);
- out.put_fix_number(c).put_fix_number(h).put_literal_symbol(psname)
- .put_symbol("MF");
- }
- else {
- out.put_literal_symbol(psname).put_symbol("SF");
- }
- defined_styles[ndefined_styles++] = sty;
- }
-
- void ps_printer::set_space_code(unsigned char c)
- {
- out.put_literal_symbol("SC").put_number(c).put_symbol("def");
- }
-
- void ps_printer::end_of_line()
- {
- flush_sbuf();
- // this ensures that we do an absolute motion to the beginning of a line
- output_vpos = output_hpos = -1;
- }
-
- void ps_printer::flush_sbuf()
- {
- enum {
- NONE,
- RELATIVE_H,
- RELATIVE_V,
- RELATIVE_HV,
- ABSOLUTE
- } motion = NONE;
- int space_flag = 0;
- if (sbuf_len == 0)
- return;
- if (output_style != sbuf_style) {
- set_style(sbuf_style);
- output_style = sbuf_style;
- }
- int extra_space = 0;
- if (output_hpos < 0 || output_vpos < 0
- || !is_small_h(output_hpos - sbuf_start_hpos)
- || !is_small_v(output_vpos - sbuf_vpos))
- motion = ABSOLUTE;
- else {
- if (output_hpos != sbuf_start_hpos)
- motion = RELATIVE_H;
- if (output_vpos != sbuf_vpos) {
- if (motion != NONE)
- motion = RELATIVE_HV;
- else
- motion = RELATIVE_V;
- }
- }
- if (sbuf_space_code >= 0) {
- int w = sbuf_style.f->get_width(space_char_index, sbuf_style.point_size);
- if (w + sbuf_kern != sbuf_space_width) {
- if (sbuf_space_code != output_space_code) {
- set_space_code(sbuf_space_code);
- output_space_code = sbuf_space_code;
- }
- space_flag = 1;
- extra_space = sbuf_space_width - w - sbuf_kern;
- if (sbuf_space_diff_count > sbuf_space_count/2)
- extra_space++;
- else if (sbuf_space_diff_count < -(sbuf_space_count/2))
- extra_space--;
- }
- }
- if (space_flag)
- out.put_fix_number(extra_space);
- if (sbuf_kern != 0)
- out.put_fix_number(sbuf_kern);
- out.put_string(sbuf, sbuf_len);
- char sym[2];
- sym[0] = 'A' + motion*4 + space_flag + 2*(sbuf_kern != 0);
- sym[1] = '\0';
- switch (motion) {
- case NONE:
- break;
- case ABSOLUTE:
- out.put_fix_number(sbuf_start_hpos)
- .put_fix_number(sbuf_vpos);
- break;
- case RELATIVE_H:
- out.put_fix_number(sbuf_start_hpos - output_hpos);
- break;
- case RELATIVE_V:
- out.put_fix_number(sbuf_vpos - output_vpos);
- break;
- case RELATIVE_HV:
- out.put_fix_number(sbuf_start_hpos - output_hpos)
- .put_fix_number(sbuf_vpos - output_vpos);
- break;
- default:
- assert(0);
- }
- out.put_symbol(sym);
- output_hpos = sbuf_end_hpos;
- output_vpos = sbuf_vpos;
- sbuf_len = 0;
- }
-
-
- void ps_printer::set_line_thickness(const environment *env)
- {
- if (line_thickness < 0) {
- if (output_draw_point_size != env->size) {
- // we ought to check for overflow here
- int lw = ((font::res/(72*font::sizescale))*linewidth*env->size)/1000;
- out.put_fix_number(lw).put_symbol("LW");
- output_draw_point_size = env->size;
- output_line_thickness = -1;
- }
- }
- else {
- if (output_line_thickness != line_thickness) {
- out.put_fix_number(line_thickness).put_symbol("LW");
- output_line_thickness = line_thickness;
- output_draw_point_size = -1;
- }
- }
- }
-
- void ps_printer::fill_path()
- {
- if (fill > FILL_MAX)
- out.put_symbol("BL");
- else
- out.put_float(transform_fill(fill)).put_symbol("FL");
- }
-
- void ps_printer::draw(int code, int *p, int np, const environment *env)
- {
- int fill_flag = 0;
- switch (code) {
- case 'C':
- fill_flag = 1;
- // fall through
- case 'c':
- // troff adds an extra argument to C
- if (np != 1 && !(code == 'C' && np == 2)) {
- error("1 argument required for circle");
- break;
- }
- out.put_fix_number(env->hpos + p[0]/2)
- .put_fix_number(env->vpos)
- .put_fix_number(p[0]/2)
- .put_symbol("DC");
- if (fill_flag) {
- fill_path();
- }
- else {
- set_line_thickness(env);
- out.put_symbol("ST");
- }
- break;
- case 'l':
- if (np != 2) {
- error("2 arguments required for line");
- break;
- }
- set_line_thickness(env);
- out.put_fix_number(p[0] + env->hpos)
- .put_fix_number(p[1] + env->vpos)
- .put_fix_number(env->hpos)
- .put_fix_number(env->vpos)
- .put_symbol("DL");
- break;
- case 'E':
- fill_flag = 1;
- // fall through
- case 'e':
- if (np != 2) {
- error("2 arguments required for ellipse");
- break;
- }
- out.put_fix_number(p[0])
- .put_fix_number(p[1])
- .put_fix_number(env->hpos + p[0]/2)
- .put_fix_number(env->vpos)
- .put_symbol("DE");
- if (fill_flag) {
- fill_path();
- }
- else {
- set_line_thickness(env);
- out.put_symbol("ST");
- }
- break;
- case 'P':
- fill_flag = 1;
- // fall through
- case 'p':
- {
- if (np & 1) {
- error("even number of arguments required for polygon");
- break;
- }
- if (np == 0) {
- error("no arguments for polygon");
- break;
- }
- out.put_fix_number(env->hpos)
- .put_fix_number(env->vpos)
- .put_symbol("MT");
- for (int i = 0; i < np; i += 2)
- out.put_fix_number(p[i])
- .put_fix_number(p[i+1])
- .put_symbol("RL");
- out.put_symbol("CL");
- if (fill_flag) {
- fill_path();
- }
- else {
- set_line_thickness(env);
- out.put_symbol("ST");
- }
- break;
- }
- case '~':
- {
- if (np & 1) {
- error("even number of arguments required for spline");
- break;
- }
- if (np == 0) {
- error("no arguments for spline");
- break;
- }
- out.put_fix_number(env->hpos)
- .put_fix_number(env->vpos)
- .put_symbol("MT");
- out.put_fix_number(p[0]/2)
- .put_fix_number(p[1]/2)
- .put_symbol("RL");
- /* tnum/tden should be between 0 and 1; the closer it is to 1
- the tighter the curve will be to the guiding lines; 2/3
- is the standard value */
- const int tnum = 2;
- const int tden = 3;
- for (int i = 0; i < np - 2; i += 2) {
- out.put_fix_number((p[i]*tnum)/(2*tden))
- .put_fix_number((p[i + 1]*tnum)/(2*tden))
- .put_fix_number(p[i]/2 + (p[i + 2]*(tden - tnum))/(2*tden))
- .put_fix_number(p[i + 1]/2 + (p[i + 3]*(tden - tnum))/(2*tden))
- .put_fix_number((p[i] - p[i]/2) + p[i + 2]/2)
- .put_fix_number((p[i + 1] - p[i + 1]/2) + p[i + 3]/2)
- .put_symbol("RC");
- }
- out.put_fix_number(p[np - 2] - p[np - 2]/2)
- .put_fix_number(p[np - 1] - p[np - 1]/2)
- .put_symbol("RL");
- set_line_thickness(env);
- out.put_symbol("ST");
- }
- break;
- case 'a':
- {
- if (np != 4) {
- error("4 arguments required for arc");
- break;
- }
- set_line_thickness(env);
- int x = p[0] + p[2];
- int y = p[1] + p[3];
- double n = p[0]*double(x) + p[1]*double(y);
- if (n == 0)
- out.put_fix_number(x + env->hpos)
- .put_fix_number(y + env->vpos)
- .put_fix_number(env->hpos)
- .put_fix_number(env->vpos)
- .put_symbol("DL");
- else {
- double k = (double(x)*x + double(y)*y)/(2.0*n);
- double cx = k*p[0];
- double cy = k*p[1];
- out.put_fix_number(env->hpos + int(cx))
- .put_fix_number(env->vpos + int(cy))
- .put_fix_number(int(sqrt(cx*cx + cy*cy)))
- .put_float(degrees(atan2(-cy, -cx)))
- .put_float(degrees(atan2(y - cy, x - cx)))
- .put_symbol("DA");
- }
- }
- break;
- case 't':
- {
- if (np == 0) {
- line_thickness = -1;
- }
- else {
- // troff gratuitously adds an extra 0
- if (np != 1 && np != 2) {
- error("0 or 1 argument required for thickness");
- break;
- }
- line_thickness = p[0];
- }
- break;
- }
- case 'f':
- {
- if (np != 1 && np != 2) {
- error("1 argument required for fill");
- break;
- }
- fill = p[0];
- if (fill < 0 || fill > FILL_MAX) {
- // This means fill with the current color.
- fill = FILL_MAX + 1;
- }
- break;
- }
- default:
- error("unrecognised drawing command `%1'", char(code));
- break;
- }
-
- output_hpos = output_vpos = -1;
- }
-
- void ps_printer::begin_page(int n)
- {
- out.begin_comment("Page:").comment_arg(itoa(n));
- out.comment_arg(itoa(++pages_output)).end_comment();
- output_style.f = 0;
- output_space_code = 32;
- output_draw_point_size = -1;
- output_line_thickness = -1;
- output_hpos = output_vpos = -1;
- ndefined_styles = 0;
- out.put_symbol("BP");
- }
-
- void ps_printer::end_page()
- {
- flush_sbuf();
- out.put_symbol("EP");
- }
-
- font *ps_printer::make_font(const char *nm)
- {
- return ps_font::load_ps_font(nm);
- }
-
- ps_printer::~ps_printer()
- {
- out.simple_comment("Trailer");
- out.put_symbol("end");
- out.end_line();
- if (fseek(tempfp, 0L, 0) < 0)
- fatal("fseek on temporary file failed");
- fputs("%!PS-Adobe-2.1\n", stdout);
- out.set_file(stdout);
- {
- extern const char *version_string;
- out.begin_comment("Creator:")
- .comment_arg("groff")
- .comment_arg("version")
- .comment_arg(version_string)
- .end_comment();
- }
- read_download_file();
- merge_ps_fonts();
- merge_download_fonts();
- print_font_comment();
- print_supplied_font_comment();
- print_needed_font_comment();
- out.begin_comment("Pages:").comment_arg(itoa(pages_output)).end_comment();
- out.simple_comment("EndComments");
- char *path;
- FILE *fp = font::open_file(PROLOGUE, &path);
- if (fp == 0)
- fatal("can't find `%1'", PROLOGUE);
- out.put_literal_symbol(dict_name);
- out.put_number(MAX_DEFINED_STYLES + MAX_PROLOGUE_DEFS).put_symbol("dict");
- out.put_symbol("def");
- out.put_symbol(dict_name).put_symbol("begin");
- out.include_file(fp);
- fclose(fp);
- if (ndefs > 0)
- ndefs += DEFS_DICT_SPARE;
- out.put_literal_symbol(defs_dict_name)
- .put_number(ndefs + 1)
- .put_symbol("dict")
- .put_symbol("def");
- out.put_symbol(defs_dict_name)
- .put_symbol("begin");
- out.put_literal_symbol("u")
- .put_delimiter('{')
- .put_fix_number(1)
- .put_symbol("mul")
- .put_delimiter('}')
- .put_symbol("bind")
- .put_symbol("def");
- defs += '\0';
- out.special(defs.contents());
- out.put_symbol("end");
- delete path;
- out.put_symbol("end");
- #ifndef BROKEN_SPOOLER
- out.simple_comment("EndProlog");
- #endif /* !BROKEN_SPOOLER */
- print_include_font_comments();
- download_fonts();
- #ifndef BROKEN_SPOOLER
- out.simple_comment("BeginSetup");
- #endif /* !BROKEN_SPOOLER */
- out.put_symbol(dict_name).put_symbol("begin");
- out.put_literal_symbol("#copies").put_number(ncopies).put_symbol("def");
- out.put_literal_symbol("RES").put_number(res).put_symbol("def");
- out.put_literal_symbol("PL").put_fix_number(paper_length).put_symbol("def");
- out.put_literal_symbol("LS")
- .put_symbol(landscape_flag ? "true" : "false")
- .put_symbol("def");
- encode_fonts();
- #ifndef BROKEN_SPOOLER
- out.simple_comment("EndSetup");
- #else /* !BROKEN_SPOOLER */
- out.simple_comment("EndProlog");
- #endif /* BROKEN_SPOOLER */
- out.end_line();
- out.copy_file(tempfp);
- fclose(tempfp);
- }
-
- void ps_printer::special(char *arg, const environment *env)
- {
- typedef void (ps_printer::*SPECIAL_PROCP)(char *, const environment *);
- static struct {
- const char *name;
- SPECIAL_PROCP proc;
- } proc_table[] = {
- "exec", &ps_printer::do_exec,
- "def", &ps_printer::do_def,
- "mdef", &ps_printer::do_mdef,
- "import", &ps_printer::do_import,
- "file", &ps_printer::do_file,
- };
- for (char *p = arg; *p == ' ' || *p == '\n'; p++)
- ;
- char *tag = p;
- for (; *p != '\0' && *p != ':' && *p != ' ' && *p != '\n'; p++)
- ;
- if (*p == '\0' || strncmp(tag, "ps", p - tag) != 0) {
- error("X command without `ps:' tag ignored");
- return;
- }
- p++;
- for (; *p == ' ' || *p == '\n'; p++)
- ;
- char *command = p;
- for (; *p != '\0' && *p != ' ' && *p != '\n'; p++)
- ;
- if (*command == '\0') {
- error("X command without `ps:' tag ignored");
- return;
- }
- for (int i = 0; i < sizeof(proc_table)/sizeof(proc_table[0]); i++)
- if (strncmp(command, proc_table[i].name, p - command) == 0) {
- flush_sbuf();
- (this->*(proc_table[i].proc))(p, env);
- return;
- }
- error("X command `%1' not recognised", command);
- }
-
- // A conforming PostScript document must not have lines longer
- // than 255 characters (excluding line termination characters).
-
- static int check_line_lengths(const char *p)
- {
- for (;;) {
- const char *end = strchr(p, '\n');
- if (end == 0)
- end = strchr(p, '\0');
- if (end - p > 255)
- return 0;
- if (*end == '\0')
- break;
- p = end + 1;
- }
- return 1;
- }
-
- void ps_printer::do_exec(char *arg, const environment *env)
- {
- while (csspace(*arg))
- arg++;
- if (*arg == '\0') {
- error("missing argument to X exec command");
- return;
- }
- if (!check_line_lengths(arg)) {
- error("lines in X exec command must not be more than 255 characters long");
- return;
- }
- out.put_fix_number(env->hpos)
- .put_fix_number(env->vpos)
- .put_symbol("EBEGIN")
- .special(arg)
- .put_symbol("EEND");
- output_hpos = output_vpos = -1;
- output_style.f = 0;
- output_draw_point_size = -1;
- output_line_thickness = -1;
- ndefined_styles = 0;
- }
-
- void ps_printer::do_file(char *arg, const environment *env)
- {
- while (csspace(*arg))
- arg++;
- if (*arg == '\0') {
- error("missing argument to X file command");
- return;
- }
- const char *filename = arg;
- do {
- ++arg;
- } while (*arg != '\0' && *arg != ' ' && *arg != '\n');
- FILE *fp = fopen(filename, "r");
- if (!fp) {
- error("can't open `%1': %2", filename, strerror(errno));
- return;
- }
- out.put_fix_number(env->hpos)
- .put_fix_number(env->vpos)
- .put_symbol("EBEGIN")
- .include_file(fp)
- .put_symbol("EEND");
- fclose(fp);
- output_hpos = output_vpos = -1;
- output_style.f = 0;
- output_draw_point_size = -1;
- output_line_thickness = -1;
- ndefined_styles = 0;
- }
-
- void ps_printer::do_def(char *arg, const environment *)
- {
- while (csspace(*arg))
- arg++;
- if (!check_line_lengths(arg)) {
- error("lines in X def command must not be more than 255 characters long");
- return;
- }
- defs += arg;
- if (*arg != '\0' && strchr(arg, '\0')[-1] != '\n')
- defs += '\n';
- ndefs++;
- }
-
- // Like def, but the first argument says how many definitions it contains.
-
- void ps_printer::do_mdef(char *arg, const environment *)
- {
- char *p;
- int n = (int)strtol(arg, &p, 10);
- if (n == 0 && p == arg) {
- error("first argument to X mdef must be an integer");
- return;
- }
- if (n < 0) {
- error("out of range argument `%1' to X mdef command", int(n));
- return;
- }
- arg = p;
- while (csspace(*arg))
- arg++;
- if (!check_line_lengths(arg)) {
- error("lines in X mdef command must not be more than 255 characters long");
- return;
- }
- defs += arg;
- if (*arg != '\0' && strchr(arg, '\0')[-1] != '\n')
- defs += '\n';
- ndefs += n;
- }
-
- void ps_printer::do_import(char *arg, const environment *env)
- {
- while (*arg == ' ' || *arg == '\n')
- arg++;
- for (char *p = arg; *p != '\0' && *p != ' ' && *p != '\n'; p++)
- ;
- if (*p != '\0')
- *p++ = '\0';
- int parms[6];
- int nparms = 0;
- while (nparms < 6) {
- char *end;
- long n = strtol(p, &end, 10);
- if (n == 0 && end == p)
- break;
- parms[nparms++] = int(n);
- p = end;
- }
- if (csalpha(*p) && (p[1] == '\0' || p[1] == ' ' || p[1] == '\n')) {
- error("scaling indicators not allowed in arguments for X import command");
- return;
- }
- while (*p == ' ' || *p == '\n')
- p++;
- if (nparms < 5) {
- if (*p == '\0')
- error("too few arguments for X import command");
- else
- error("invalid argument `%1' for X import command", p);
- return;
- }
- if (*p != '\0') {
- error("superflous argument `%1' for X import command", p);
- return;
- }
- int llx = parms[0];
- int lly = parms[1];
- int urx = parms[2];
- int ury = parms[3];
- int desired_width = parms[4];
- int desired_height = parms[5];
- if (desired_width <= 0) {
- error("bad width argument `%1' for X import command: must be > 0",
- desired_width);
- return;
- }
- if (nparms == 6 && desired_height <= 0) {
- error("bad height argument `%1' for X import command: must be > 0",
- desired_height);
- return;
- }
- if (llx == urx) {
- error("llx and urx arguments for X import command must not be equal");
- return;
- }
- if (lly == ury) {
- error("lly and ury arguments for X import command must not be equal");
- return;
- }
- if (nparms == 5) {
- int old_wid = urx - llx;
- int old_ht = ury - lly;
- if (old_wid < 0)
- old_wid = -old_wid;
- if (old_ht < 0)
- old_ht = -old_ht;
- desired_height = int(desired_width*(double(old_ht)/double(old_wid)) + .5);
- }
- if (env->vpos - desired_height < 0)
- warning("top of imported graphic is above the top of the page");
- FILE *fp = fopen(arg, "r");
- if (fp == 0) {
- error("can't open `%1': %2", arg, strerror(errno));
- return;
- }
- merge_import_fonts(fp);
- out.put_literal_symbol("level1")
- .put_symbol("save")
- .put_symbol("def");
- out.put_number(llx)
- .put_number(lly)
- .put_fix_number(desired_width)
- .put_number(urx - llx)
- .put_fix_number(-desired_height)
- .put_number(ury - lly)
- .put_fix_number(env->hpos)
- .put_fix_number(env->vpos)
- .put_symbol("PICTURE");
- // Put our dictionary off the dictionary stack so that it isn't
- // zapped by unfriendly applications.
- out.put_symbol("end");
- // Disable showpage.
- out.put_literal_symbol("showpage")
- .put_delimiter('{')
- .put_delimiter('}')
- .put_symbol("def");
- out.begin_comment("BeginDocument:")
- .comment_arg(arg)
- .end_comment();
- out.include_file(fp);
- fclose(fp);
- out.simple_comment("EndDocument");
- // Clear junk off operand stack, to lessen chance of an invalidrestore.
- out.put_symbol("clear");
- out.put_symbol(dict_name)
- .put_symbol("begin");
- out.put_symbol("level1")
- .put_symbol("restore");
- }
-
- static void add_font(const char *name, int t, document_font **pp)
- {
- for (; *pp; pp = &(*pp)->next)
- if (strcmp(name, (*pp)->name) == 0) {
- (*pp)->flags |= t;
- return;
- }
- *pp = new document_font(name);
- (*pp)->flags = t;
- }
-
- // Skip the rest of the current line, including any line termination
- // characters.
-
- static int skip_line(FILE *fp)
- {
- // The spec says any combination of \n and \r is allowed as a line
- // termination. It seems wrong to allow multiple \n's or multiple
- // \r's since this would mean we were swallowing blank lines.
- for (;;) {
- int c = getc(fp);
- if (c == '\n') {
- c = getc(fp);
- if (c == EOF)
- return 0;
- if (c != '\r')
- ungetc(c, fp);
- return 1;
- }
- if (c == '\r') {
- c = getc(fp);
- if (c == EOF)
- return 0;
- if (c != '\n')
- ungetc(c, fp);
- return 1;
- }
- if (c == EOF)
- break;
- }
- return 0;
- }
-
- static void parse_fonts_arg(FILE *fp, int type, document_font **font_listp,
- int *at_endp)
- {
- // More than enough room for a single name.
- char buf[256];
- int c = getc(fp);
- for (;;) {
- while (c == ' ' || c == '\t')
- c = getc(fp);
- if (c == EOF || c == '\n' || c == '\r')
- break;
- int i = 0;
- do {
- if (i >= sizeof(buf) - 1)
- return;
- if (c == '\0')
- return;
- buf[i++] = c;
- c = getc(fp);
- } while (c != '\n' && c != '\r' && c != ' ' && c != '\t' && c != EOF);
- buf[i++] = '\0';
- if (strcmp(buf, "(atend)") == 0 && at_endp != 0)
- *at_endp |= type;
- else
- add_font(buf, type, font_listp);
- }
- if (c == '\n' || c == '\r')
- ungetc(c, fp);
- }
-
- static document_font *read_document_fonts(FILE *fp)
- {
- int last_comment = 0;
- int document_fonts_at_end = 0;
- // This says which comments we've seen in the header. The first of each
- // is the significant one.
- int header_comments = 0;
- char buf[sizeof("DocumentSuppliedFonts:")];
- #define MAGIC "%!PS-Adobe-"
- if (fread(buf, 1, sizeof(MAGIC)-1, fp) != sizeof(MAGIC)-1
- || memcmp(buf, MAGIC, sizeof(MAGIC)-1) != 0)
- return 0;
- document_font *font_list = 0;
- enum { HEADER, BODY, TRAILER } state = HEADER;
- int level = 0;
- while (skip_line(fp)) {
- if (state == BODY && document_fonts_at_end == 0)
- break;
- int c = getc(fp);
- if (c == '%')
- c = getc(fp);
- if (c == EOF)
- break;
- if (c != '%') {
- if (state == HEADER)
- state = BODY;
- if (c == '\n' || c == '\r')
- ungetc(c, fp);
- continue;
- }
- c = getc(fp);
- if (c == EOF)
- break;
- if (c == '+') {
- if (last_comment)
- parse_fonts_arg(fp, last_comment, &font_list, 0);
- continue;
- }
- last_comment = 0;
- int i = 0;
- while (c != '\r' && c != '\n' && c != ' ' && c != '\t' && c != EOF) {
- if (i >= sizeof(buf) - 1) {
- i = 0;
- break;
- }
- buf[i++] = c;
- if (c == ':')
- break;
- c = getc(fp);
- }
- if (c == '\r' || c == '\n')
- ungetc(c, fp);
- buf[i++] = '\0';
- if (strcmp(buf, "BeginDocument:") == 0)
- level++;
- else if (strcmp(buf, "EndDocument") == 0) {
- if (level > 0)
- level--;
- }
- else if (level == 0) {
- if (strcmp(buf, "Trailer") == 0)
- state = TRAILER;
- else if (strcmp(buf, "EndComments") == 0) {
- if (state == HEADER)
- state = BODY;
- }
- else if (state == HEADER) {
- int comment_type = 0;
- if (strcmp(buf, "DocumentFonts:") == 0)
- comment_type = document_font::LISTED;
- else if (strcmp(buf, "DocumentNeededFonts:") == 0)
- comment_type = document_font::NEEDED;
- else if (strcmp(buf, "DocumentSuppliedFonts:") == 0)
- comment_type = document_font::SUPPLIED;
- if (comment_type != 0 && !(header_comments & comment_type)) {
- parse_fonts_arg(fp, comment_type, &font_list,
- (comment_type == document_font::LISTED
- ? &document_fonts_at_end
- : 0));
- last_comment = comment_type;
- header_comments |= comment_type;
- }
- }
- else if (state == TRAILER && strcmp(buf, "DocumentFonts:") == 0) {
- parse_fonts_arg(fp, document_font::LISTED, &font_list, 0);
- last_comment = document_font::LISTED;
- }
- }
- }
- return font_list;
- }
-
- document_font *ps_printer::lookup_doc_font(const char *nm)
- {
- for (document_font **p = &doc_fonts; *p; p = &(*p)->next)
- if (strcmp((*p)->name, nm) == 0)
- return *p;
- return *p = new document_font(nm);
- }
-
- void ps_printer::merge_download_fonts()
- {
- for (document_font *p = doc_fonts; p; p = p->next)
- if (p->filename && (p->flags & document_font::NEEDED)) {
- char *path = 0;
- FILE *fp = font::open_file(p->filename, &path);
- delete path;
- if (fp) {
- document_font *depends = read_document_fonts(fp);
- fclose(fp);
- while (depends) {
- document_font *tem = depends->next;
- if (strcmp(p->name, depends->name) != 0) {
- if ((depends->flags & document_font::LISTED)
- && !(depends->flags & document_font::SUPPLIED))
- depends->flags |= document_font::NEEDED;
- // We ignore the LISTED bit from now on.
- document_font *q = lookup_doc_font(depends->name);
- if (q->filename && (depends->flags & document_font::NEEDED)) {
- depend_list *dep = new depend_list;
- dep->next = p->depends_on;
- dep->p = q;
- p->depends_on = dep;
- if (!(q->flags & document_font::NEEDED)) {
- // Move q to the end of the list.
- for (document_font **pp = &doc_fonts;
- *pp != q;
- pp = &(*pp)->next)
- ;
- *pp = q->next;
- q->next = 0;
- for (; *pp; pp = &(*pp)->next)
- ;
- *pp = q;
- }
- }
- q->flags |= depends->flags;
- }
- delete depends;
- depends = tem;
- }
- }
- else {
- error("can't find font file `%1': %2", p->filename, strerror(errno));
- delete p->filename;
- p->filename = 0;
- }
- }
- }
-
- void ps_printer::merge_import_fonts(FILE *fp)
- {
- document_font *p = read_document_fonts(fp);
- rewind(fp);
- while (p) {
- if ((p->flags & document_font::LISTED)
- && !(p->flags & document_font::SUPPLIED))
- p->flags |= document_font::NEEDED;
- document_font *tem = p->next;
- document_font *q = lookup_doc_font(p->name);
- q->flags |= p->flags;
- delete p;
- p = tem;
- }
- }
-
- void ps_printer::merge_ps_fonts()
- {
- for (font_pointer_list *f = font_list; f; f = f->next) {
- ps_font *psf = (ps_font *)(f->p);
- document_font *p = lookup_doc_font(psf->get_internal_name());
- p->flags |= document_font::NEEDED;
- }
- }
-
- void ps_printer::print_font_comment()
- {
- out.begin_comment("DocumentFonts:");
- for (document_font *list = doc_fonts; list; list = list->next)
- if (list->flags)
- out.comment_arg(list->name);
- out.end_comment();
- }
-
- void ps_printer::print_supplied_font_comment()
- {
- out.begin_comment("DocumentSuppliedFonts:");
- for (document_font *list = doc_fonts; list; list = list->next)
- if (((list->flags & document_font::NEEDED) && list->filename)
- || ((list->flags & document_font::SUPPLIED)
- #if 0
- && !(list->flags & document_font::NEEDED)
- #endif
- ))
- out.comment_arg(list->name);
- out.end_comment();
- }
-
- void ps_printer::print_needed_font_comment()
- {
- out.begin_comment("DocumentNeededFonts:");
- for (document_font *list = doc_fonts; list; list = list->next)
- if ((list->flags & document_font::NEEDED) && !list->filename)
- out.comment_arg(list->name);
- out.end_comment();
- }
-
- void ps_printer::print_include_font_comments()
- {
- for (document_font *list = doc_fonts; list; list = list->next)
- if ((list->flags & document_font::NEEDED) && !list->filename)
- out.begin_comment("IncludeFont:").comment_arg(list->name).end_comment();
- }
-
- void ps_printer::download_fonts()
- {
- for (document_font *p = doc_fonts; p; p = p->next)
- p->download(out);
- }
-
- void ps_printer::read_download_file()
- {
- char *path = 0;
- FILE *fp = font::open_file("download", &path);
- if (!fp)
- fatal("can't find `download'");
- char buf[512];
- int lineno = 0;
- while (fgets(buf, sizeof(buf), fp)) {
- lineno++;
- char *p = strtok(buf, " \t\r\n");
- if (p == 0 || *p == '#')
- continue;
- char *q = strtok(0, " \t\r\n");
- if (!q)
- fatal_with_file_and_line(path, lineno, "missing filename");
- lookup_doc_font(p)->filename = strsave(q);
- }
- delete path;
- fclose(fp);
- }
-
- document_font::document_font(const char *s)
- : name(strsave(s)), filename(0), flags(0), next(0), depends_on(0), mark(0)
- {
- assert(name != 0);
- }
-
- document_font::~document_font()
- {
- delete name;
- delete filename;
- while (depends_on) {
- depend_list *tem = depends_on->next;
- delete depends_on;
- depends_on = tem;
- }
- }
-
- void document_font::download(ps_output &out)
- {
- if (!filename)
- return;
- if (!(flags & NEEDED))
- return;
- // Do a reverse topological sort on the dependency graph.
- if (mark == 0) {
- mark = -1;
- for (depend_list *p = depends_on; p; p = p->next)
- p->p->download(out);
- char *path = 0;
- FILE *fp = font::open_file(filename, &path);
- // This shouldn't normally happen because we checked that the file
- // exists in merge_download_fonts.
- if (!fp)
- fatal("can't open `%1': %2", filename, strerror(errno));
- out.begin_comment("BeginFont:").comment_arg(name).end_comment();
- out.begin_comment("BeginDocument:").comment_arg(filename).end_comment();
- out.include_file(fp);
- out.simple_comment("EndDocument");
- out.simple_comment("EndFont");
- fclose(fp);
- delete path;
- mark = 1;
- }
- else if (mark < 0)
- error("loop detected in font dependencies for `%1'", name);
- }
-
- printer *make_printer()
- {
- return new ps_printer;
- }
-
- static void usage();
-
- int main(int argc, char **argv)
- {
- program_name = argv[0];
- static char stderr_buf[BUFSIZ];
- setbuf(stderr, stderr_buf);
- int c;
- while ((c = getopt(argc, argv, "F:lc:w:v")) != EOF)
- switch(c) {
- case 'v':
- {
- extern const char *version_string;
- fprintf(stderr, "grops version %s\n", version_string);
- fflush(stderr);
- break;
- }
- case 'c':
- if (sscanf(optarg, "%d", &ncopies) != 1 || ncopies <= 0) {
- error("bad number of copies `%s'", optarg);
- ncopies = 1;
- }
- break;
- case 'l':
- landscape_flag = 1;
- break;
- case 'F':
- font::command_line_font_dir(optarg);
- break;
- case 'w':
- if (sscanf(optarg, "%d", &linewidth) != 1 || linewidth < 0) {
- error("bad linewidth `%s'", optarg);
- linewidth = -1;
- }
- break;
- case '?':
- usage();
- break;
- default:
- assert(0);
- }
- if (optind >= argc)
- do_file("-");
- else {
- for (int i = optind; i < argc; i++)
- do_file(argv[i]);
- }
- delete pr;
- exit(0);
- }
-
- static void usage()
- {
- fprintf(stderr, "usage: %s [-l] [-c n] [-w n] [-F dir] [-v] [files ...]\n",
- program_name);
- exit(1);
- }
-