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-rw-r--r--src/devices/grolbp/lbp.cpp738
1 files changed, 738 insertions, 0 deletions
diff --git a/src/devices/grolbp/lbp.cpp b/src/devices/grolbp/lbp.cpp
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+++ b/src/devices/grolbp/lbp.cpp
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+/* Copyright (C) 1994-2020 Free Software Foundation, Inc.
+ Written by Francisco Andrés Verdú <pandres@dragonet.es> with many
+ ideas taken from the other groff drivers.
+
+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 3 of the License, 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 this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/*
+TODO
+
+ - Add X command to include bitmaps
+*/
+
+#include <assert.h>
+
+#include "driver.h"
+#include "lbp.h"
+#include "charset.h"
+#include "paper.h"
+
+#include "nonposix.h"
+
+extern "C" const char *Version_string;
+
+static int user_papersize = -1;
+static int orientation = -1;
+
+// custom paper format
+static double user_paperlength = 0;
+static double user_paperwidth = 0;
+
+static int ncopies = 1;
+
+#define DEFAULT_LINEWIDTH_FACTOR 40 // 0.04em
+static int linewidth_factor = DEFAULT_LINEWIDTH_FACTOR;
+
+static int set_papersize(const char *paperformat);
+
+class lbp_font : public font {
+public:
+ ~lbp_font();
+ void handle_unknown_font_command(const char *command, const char *arg,
+ const char *filename, int lineno);
+ static lbp_font *load_lbp_font(const char *);
+ char *lbpname;
+ char is_scalable;
+private:
+ lbp_font(const char *);
+};
+
+class lbp_printer : public printer {
+public:
+ lbp_printer(int, double, double);
+ ~lbp_printer();
+ void set_char(glyph *, font *, const environment *, int, const char *name);
+ void draw(int code, int *p, int np, const environment *env);
+ void begin_page(int);
+ void end_page(int page_length);
+ font *make_font(const char *);
+ void end_of_line();
+private:
+ void set_line_thickness(int size,const environment *env);
+ void vdmstart();
+ void vdmflush(); // the name vdmend was already used in lbp.h
+ void setfillmode(int mode);
+ void polygon( int hpos,int vpos,int np,int *p);
+ char *font_name(const lbp_font *f, const int siz);
+
+ int fill_pattern;
+ int fill_mode;
+ int cur_hpos;
+ int cur_vpos;
+ lbp_font *cur_font;
+ int cur_size;
+ unsigned short cur_symbol_set;
+ int line_thickness;
+ int req_linethickness; // requested line thickness
+ // custom paper format
+ int papersize;
+ int paperlength;
+ int paperwidth;
+};
+
+lbp_font::lbp_font(const char *nm)
+: font(nm)
+{
+}
+
+lbp_font::~lbp_font()
+{
+}
+
+lbp_font *lbp_font::load_lbp_font(const char *s)
+{
+ lbp_font *f = new lbp_font(s);
+ f->lbpname = NULL;
+ f->is_scalable = 1; // Default is that fonts are scalable
+ if (!f->load()) {
+ delete f;
+ return 0;
+ }
+ return f;
+}
+
+
+void lbp_font::handle_unknown_font_command(const char *command,
+ const char *arg,
+ const char *filename, int lineno)
+{
+ if (strcmp(command, "lbpname") == 0) {
+ if (arg == 0)
+ fatal_with_file_and_line(filename, lineno,
+ "'%1' command requires an argument",
+ command);
+ this->lbpname = new char[strlen(arg) + 1];
+ strcpy(this->lbpname, arg);
+ // we recognize bitmapped fonts by the first character of its name
+ if (arg[0] == 'N')
+ this->is_scalable = 0;
+ // fprintf(stderr, "Loading font \"%s\" \n", arg);
+ }
+ // fprintf(stderr, "Loading font %s \"%s\" in %s at %d\n",
+ // command, arg, filename, lineno);
+}
+
+static void wp54charset()
+{
+ unsigned int i;
+ lbpputs("\033[714;100;29;0;32;120.}");
+ for (i = 0; i < sizeof(symset); i++)
+ lbpputc(symset[i]);
+ lbpputs("\033[100;0 D");
+ return;
+}
+
+lbp_printer::lbp_printer(int ps, double pw, double pl)
+: fill_pattern(1),
+ fill_mode(0),
+ cur_hpos(-1),
+ cur_font(0),
+ cur_size(0),
+ cur_symbol_set(0),
+ req_linethickness(-1)
+{
+ SET_BINARY(fileno(stdout));
+ lbpinit(stdout);
+ lbpputs("\033c\033;\033[2&z\033[7 I\033[?32h\033[?33h\033[11h");
+ wp54charset(); // Define the new symbol set
+ lbpputs("\033[7 I\033[?32h\033[?33h\033[11h");
+ // Paper format handling
+ if (orientation < 0)
+ orientation = 0; // Default orientation is portrait
+ papersize = 14; // Default paper format is A4
+ if (font::papersize) {
+ papersize = set_papersize(font::papersize);
+ paperlength = font::paperlength;
+ paperwidth = font::paperwidth;
+ }
+ if (ps >= 0) {
+ papersize = ps;
+ paperlength = int(pl * font::res + 0.5);
+ paperwidth = int(pw * font::res + 0.5);
+ }
+ if (papersize < 80) // standard paper
+ lbpprintf("\033[%dp", (papersize | orientation));
+ else // Custom paper
+ lbpprintf("\033[%d;%d;%dp", (papersize | orientation),
+ paperlength, paperwidth);
+ // Number of copies
+ lbpprintf("\033[%dv\n", ncopies);
+ lbpputs("\033[0u\033[1u\033P1y Grolbp\033\\");
+ lbpmoveabs(0, 0);
+ lbpputs("\033[0t\033[2t");
+ lbpputs("\033('$2\033)' 1"); // Primary symbol set IBML
+ // Secondary symbol set IBMR1
+ cur_symbol_set = 0;
+}
+
+lbp_printer::~lbp_printer()
+{
+ lbpputs("\033P1y\033\\");
+ lbpputs("\033c\033<");
+}
+
+inline void lbp_printer::set_line_thickness(int size,const environment *env)
+{
+ if (size == 0)
+ line_thickness = 1;
+ else {
+ if (size < 0)
+ // line_thickness =
+ // (env->size * (font::res/72)) * (linewidth_factor/1000)
+ // we ought to check for overflow
+ line_thickness =
+ env->size * linewidth_factor * font::res / 72000;
+ else // size > 0
+ line_thickness = size;
+ } // else from if (size == 0)
+ if (line_thickness < 1)
+ line_thickness = 1;
+ if (vdminited())
+ vdmlinewidth(line_thickness);
+ req_linethickness = size; // an size requested
+ /* fprintf(stderr, "thickness: %d == %d, size %d, %d \n",
+ size, line_thickness, env->size,req_linethickness); */
+ return;
+} // lbp_printer::set_line_thickness
+
+void lbp_printer::begin_page(int)
+{
+}
+
+void lbp_printer::end_page(int)
+{
+ if (vdminited())
+ vdmflush();
+ lbpputc('\f');
+ cur_hpos = -1;
+}
+
+void lbp_printer::end_of_line()
+{
+ cur_hpos = -1; // force absolute motion
+}
+
+char *lbp_printer::font_name(const lbp_font *f, const int siz)
+{
+ static char bfont_name[255]; // The resulting font name
+ char type, // Italic, Roman, Bold
+ ori, // Normal or Rotated
+ *nam; // The font name without other data.
+ int cpi; // The font size in characters per inch
+ // (bitmapped fonts are monospaced).
+ /* Bitmap font selection is ugly in this printer, so don't expect
+ this function to be elegant. */
+ bfont_name[0] = 0x00;
+ if (orientation) // Landscape
+ ori = 'R';
+ else // Portrait
+ ori = 'N';
+ type = f->lbpname[strlen(f->lbpname) - 1];
+ nam = new char[strlen(f->lbpname) - 2];
+ strncpy(nam, &(f->lbpname[1]), strlen(f->lbpname) - 2);
+ nam[strlen(f->lbpname) - 2] = 0x00;
+ // fprintf(stderr, "Bitmap font '%s' %d %c %c \n", nam, siz, type, ori);
+ /* Since these fonts are available only at certain sizes,
+ 10 and 17 cpi for courier, 12 and 17 cpi for elite,
+ we adjust the resulting size. */
+ cpi = 17;
+ // Fortunately there are only two bitmapped fonts shipped with the printer.
+ if (!strcasecmp(nam, "courier")) {
+ // Courier font
+ if (siz >= 12)
+ cpi = 10;
+ else cpi = 17;
+ }
+ if (!strcasecmp(nam, "elite")) {
+ if (siz >= 10)
+ cpi = 12;
+ else cpi = 17;
+ }
+ // Now that we have all the data, let's generate the font name.
+ if ((type != 'B') && (type != 'I')) // Roman font
+ sprintf(bfont_name, "%c%s%d", ori, nam, cpi);
+ else
+ sprintf(bfont_name, "%c%s%d%c", ori, nam, cpi, type);
+ return bfont_name;
+}
+
+void lbp_printer::set_char(glyph *g, font *f, const environment *env,
+ int w, const char *)
+{
+ int code = f->get_code(g);
+ unsigned char ch = code & 0xff;
+ unsigned short symbol_set = code >> 8;
+ if (f != cur_font) {
+ lbp_font *psf = (lbp_font *)f;
+ // fprintf(stderr, "Loading font %s \"%d\" \n", psf->lbpname, env->size);
+ if (psf->is_scalable) {
+ // Scalable font selection is different from bitmaped
+ lbpprintf("\033Pz%s.IBML\033\\\033[%d C", psf->lbpname,
+ (int)((env->size * font::res) / 72));
+ }
+ else
+ // bitmapped font
+ lbpprintf("\033Pz%s.IBML\033\\\n", font_name(psf, env->size));
+ lbpputs("\033)' 1"); // Select IBML and IBMR1 symbol set
+ cur_font = psf;
+ cur_symbol_set = 0;
+ // Update the line thickness if needed
+ if ((req_linethickness < 0 ) && (env->size != cur_size))
+ set_line_thickness(req_linethickness,env);
+ cur_size = env->size;
+ }
+ if (symbol_set != cur_symbol_set) {
+ if (cur_symbol_set == 3)
+ // if current symbol set is Symbol we must restore the font
+ lbpprintf("\033Pz%s.IBML\033\\\033[%d C", cur_font->lbpname,
+ (int)((env->size * font::res) / 72));
+ switch (symbol_set) {
+ case 0:
+ lbpputs("\033('$2\033)' 1"); // Select IBML and IBMR1 symbol sets
+ break;
+ case 1:
+ lbpputs("\033(d\033)' 1"); // Select wp54 symbol set
+ break;
+ case 2:
+ lbpputs("\033('$2\033)'!0"); // Select IBMP symbol set
+ break;
+ case 3:
+ lbpprintf("\033PzSymbol.SYML\033\\\033[%d C",
+ (int)((env->size * font::res) / 72));
+ lbpputs("\033(\"!!0\033)\"!!1"); // Select symbol font
+ break;
+ case 4:
+ lbpputs("\033)\"! 1\033(\"!$2"); // Select PS symbol set
+ break;
+ }
+ cur_symbol_set = symbol_set;
+ }
+ if (env->size != cur_size) {
+ if (!cur_font->is_scalable)
+ lbpprintf("\033Pz%s.IBML\033\\\n", font_name(cur_font, env->size));
+ else
+ lbpprintf("\033[%d C", (int)((env->size * font::res) / 72));
+ cur_size = env->size;
+ // Update the line thickness if needed
+ if (req_linethickness < 0 )
+ set_line_thickness(req_linethickness,env);
+ }
+ if ((env->hpos != cur_hpos) || (env->vpos != cur_vpos)) {
+ // lbpmoveabs(env->hpos - ((5 * 300) / 16), env->vpos);
+ lbpmoveabs(env->hpos - 64, env->vpos - 64);
+ cur_vpos = env->vpos;
+ cur_hpos = env->hpos;
+ }
+ if ((ch & 0x7F) < 32)
+ lbpputs("\033[1.v");
+ lbpputc(ch);
+ cur_hpos += w;
+}
+
+void lbp_printer::vdmstart()
+{
+ FILE *f;
+ static int changed_origin = 0;
+ errno = 0;
+ f = tmpfile();
+ // f = fopen("/tmp/gtmp","w+");
+ if (f == NULL)
+ perror("Opening temporary file");
+ vdminit(f);
+ if (!changed_origin) { // we should change the origin only one time
+ changed_origin = 1;
+ vdmorigin(-63, 0);
+ }
+ vdmlinewidth(line_thickness);
+}
+
+void
+lbp_printer::vdmflush()
+{
+ char buffer[1024];
+ int bytes_read = 1;
+ vdmend();
+ fflush(lbpoutput);
+ /* let's copy the vdm code to the output */
+ rewind(vdmoutput);
+ do {
+ bytes_read = fread(buffer, 1, sizeof(buffer), vdmoutput);
+ bytes_read = fwrite(buffer, 1, bytes_read, lbpoutput);
+ } while (bytes_read == sizeof(buffer));
+ fclose(vdmoutput); // This will also delete the file,
+ // since it is created by tmpfile()
+ vdmoutput = NULL;
+}
+
+inline void lbp_printer::setfillmode(int mode)
+{
+ if (mode != fill_mode) {
+ if (mode != 1)
+ vdmsetfillmode(mode, 1, 0);
+ else
+ // To get black, we must use white inverted.
+ vdmsetfillmode(mode, 1, 1);
+
+ fill_mode = mode;
+ }
+}
+
+inline void lbp_printer::polygon(int hpos, int vpos, int np, int *p)
+{
+ int *points, i;
+ points = new int[np + 2];
+ points[0] = hpos;
+ points[1] = vpos;
+ // fprintf(stderr, "Polygon (%d,%d) ", points[0], points[1]);
+ for (i = 0; i < np; i++)
+ points[i + 2] = p[i];
+ // for (i = 0; i < np; i++) fprintf(stderr, " %d ", p[i]);
+ // fprintf(stderr, "\n");
+ vdmpolygon((np /2) + 1, points);
+}
+
+void lbp_printer::draw(int code, int *p, int np, const environment *env)
+{
+ if ((req_linethickness < 0 ) && (env->size != cur_size))
+ set_line_thickness(req_linethickness,env);
+
+ switch (code) {
+ 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;
+ }
+ set_line_thickness(p[0],env);
+ }
+ break;
+ case 'l': // Line
+ if (np != 2) {
+ error("2 arguments required for line");
+ break;
+ }
+ if (!vdminited())
+ vdmstart();
+ vdmline(env->hpos, env->vpos, p[0], p[1]);
+/* fprintf(stderr, "\nline: %d,%d - %d,%d thickness %d == %d\n",
+ env->hpos - 64,env->vpos -64, env->hpos - 64 + p[0],
+ env->vpos -64 + p[1], env->size, line_thickness);*/
+ break;
+ case 'R': // Rule
+ if (np != 2) {
+ error("2 arguments required for Rule");
+ break;
+ }
+ if (vdminited()) {
+ setfillmode(fill_pattern); // Solid Rule
+ vdmrectangle(env->hpos, env->vpos, p[0], p[1]);
+ }
+ else {
+ lbpruleabs(env->hpos - 64, env->vpos -64, p[0], p[1]);
+ cur_vpos = p[1];
+ cur_hpos = p[0];
+ }
+ // fprintf(stderr, "\nrule: thickness %d == %d\n",
+ // env->size, line_thickness);
+ break;
+ case 'P': // Filled Polygon
+ if (!vdminited())
+ vdmstart();
+ setfillmode(fill_pattern);
+ polygon(env->hpos, env->vpos, np, p);
+ break;
+ case 'p': // Empty Polygon
+ if (!vdminited())
+ vdmstart();
+ setfillmode(0);
+ polygon(env->hpos, env->vpos, np, p);
+ break;
+ case 'C': // Filled Circle
+ if (!vdminited())
+ vdmstart();
+ // fprintf(stderr, "Circle (%d,%d) Fill %d\n",
+ // env->hpos, env->vpos, fill_pattern);
+ setfillmode(fill_pattern);
+ vdmcircle(env->hpos + (p[0]/2), env->vpos, p[0]/2);
+ break;
+ case 'c': // Empty Circle
+ if (!vdminited())
+ vdmstart();
+ setfillmode(0);
+ vdmcircle(env->hpos + (p[0]/2), env->vpos, p[0]/2);
+ break;
+ case 'E': // Filled Ellipse
+ if (!vdminited())
+ vdmstart();
+ setfillmode(fill_pattern);
+ vdmellipse(env->hpos + (p[0]/2), env->vpos, p[0]/2, p[1]/2, 0);
+ break;
+ case 'e': // Empty Ellipse
+ if (!vdminited())
+ vdmstart();
+ setfillmode(0);
+ vdmellipse(env->hpos + (p[0]/2), env->vpos, p[0]/2, p[1]/2, 0);
+ break;
+ case 'a': // Arc
+ if (!vdminited())
+ vdmstart();
+ setfillmode(0);
+ // VDM draws arcs clockwise and pic counterclockwise
+ // We must compensate for that, exchanging the starting and
+ // ending points
+ vdmvarc(env->hpos + p[0], env->vpos+p[1],
+ int(sqrt(double((p[0]*p[0]) + (p[1]*p[1])))),
+ p[2], p[3],
+ (-p[0]), (-p[1]), 1, 2);
+ break;
+ case '~': // Spline
+ if (!vdminited())
+ vdmstart();
+ setfillmode(0);
+ vdmspline(np/2, env->hpos, env->vpos, p);
+ break;
+ case 'f':
+ if (np != 1 && np != 2) {
+ error("1 argument required for fill");
+ break;
+ }
+ // fprintf(stderr, "Fill %d\n", p[0]);
+ if ((p[0] == 1) || (p[0] >= 1000)) { // Black
+ fill_pattern = 1;
+ break;
+ }
+ if (p[0] == 0) { // White
+ fill_pattern = 0;
+ break;
+ }
+ if ((p[0] > 1) && (p[0] < 1000))
+ {
+ if (p[0] >= 990) fill_pattern = -23;
+ else if (p[0] >= 700) fill_pattern = -28;
+ else if (p[0] >= 500) fill_pattern = -27;
+ else if (p[0] >= 400) fill_pattern = -26;
+ else if (p[0] >= 300) fill_pattern = -25;
+ else if (p[0] >= 200) fill_pattern = -22;
+ else if (p[0] >= 100) fill_pattern = -24;
+ else fill_pattern = -21;
+ }
+ break;
+ case 'F':
+ // not implemented yet
+ break;
+ default:
+ error("unrecognised drawing command '%1'", char(code));
+ break;
+ }
+ return;
+}
+
+font *lbp_printer::make_font(const char *nm)
+{
+ return lbp_font::load_lbp_font(nm);
+}
+
+printer *make_printer()
+{
+ return new lbp_printer(user_papersize, user_paperwidth, user_paperlength);
+}
+
+static struct {
+ const char *name;
+ int code;
+} lbp_papersizes[] =
+ {{ "A4", 14 },
+ { "letter", 30 },
+ { "legal", 32 },
+ { "executive", 40 },
+ };
+
+static int set_papersize(const char *paperformat)
+{
+ unsigned int i;
+ // First, test for a standard (i.e. supported directly by the printer)
+ // paper format.
+ for (i = 0 ; i < sizeof(lbp_papersizes) / sizeof(lbp_papersizes[0]); i++)
+ {
+ if (strcasecmp(lbp_papersizes[i].name,paperformat) == 0)
+ return lbp_papersizes[i].code;
+ }
+ // Otherwise, we assume a custom paper format.
+ return 82; // XXX: magic number
+}
+
+static void handle_unknown_desc_command(const char *command, const char *arg,
+ const char *filename, int lineno)
+{
+ // orientation command
+ if (strcasecmp(command, "orientation") == 0) {
+ // We give priority to command-line options
+ if (orientation > 0)
+ return;
+ if (arg == 0)
+ error_with_file_and_line(filename, lineno,
+ "'orientation' command requires an argument");
+ else {
+ if (strcasecmp(arg, "portrait") == 0)
+ orientation = 0;
+ else {
+ if (strcasecmp(arg, "landscape") == 0)
+ orientation = 1;
+ else
+ error_with_file_and_line(filename, lineno,
+ "invalid argument to 'orientation' command");
+ }
+ }
+ }
+}
+
+static struct option long_options[] = {
+ { "orientation", required_argument, NULL, 'o' },
+ { "version", no_argument, NULL, 'v' },
+ { "copies", required_argument, NULL, 'c' },
+ { "landscape", no_argument, NULL, 'l' },
+ { "papersize", required_argument, NULL, 'p' },
+ { "linewidth", required_argument, NULL, 'w' },
+ { "fontdir", required_argument, NULL, 'F' },
+ { "help", no_argument, NULL, 'h' },
+ { NULL, 0, 0, 0 }
+};
+
+static void usage(FILE *stream)
+{
+ fprintf(stream,
+"usage: %s [-l] [-c num-copies] [-F font-directory] [-o orientation]"
+" [-p paper-format] [-w width] [file ...]\n"
+"usage: %s {-v | --version}\n"
+"usage: %s {-h | --help}\n",
+ program_name, program_name, program_name);
+ if (stdout == stream) {
+ fputs(
+"\n"
+"Translate the output of troff(1) into a CaPSL and VDM format suitable"
+"\n"
+"for Canon LBP-4 and LBP-8 printers. See the grolbp(1) manual page.\n",
+ stream);
+ exit(EXIT_SUCCESS);
+ }
+}
+
+int main(int argc, char **argv)
+{
+ if (program_name == NULL)
+ program_name = strsave(argv[0]);
+ font::set_unknown_desc_command_handler(handle_unknown_desc_command);
+ // command line parsing
+ int c;
+ int option_index = 0;
+ while ((c = getopt_long(argc, argv, "c:F:hI:lo:p:vw:", long_options,
+ &option_index))
+ != EOF) {
+ switch (c) {
+ case 'F':
+ font::command_line_font_dir(optarg);
+ break;
+ case 'I':
+ // ignore include path arguments
+ break;
+ case 'p':
+ {
+ const char *s;
+ if (!font::scan_papersize(optarg, &s,
+ &user_paperlength, &user_paperwidth))
+ error("ignoring invalid paper format '%1'", optarg);
+ else
+ user_papersize = set_papersize(s);
+ break;
+ }
+ case 'l':
+ orientation = 1;
+ break;
+ case 'v':
+ printf("GNU grolbp (groff) version %s\n", Version_string);
+ exit(EXIT_SUCCESS);
+ break;
+ case 'o':
+ if (strcasecmp(optarg, "portrait") == 0)
+ orientation = 0;
+ else {
+ if (strcasecmp(optarg, "landscape") == 0)
+ orientation = 1;
+ else
+ error("unknown orientation '%1'", optarg);
+ }
+ break;
+ case 'c':
+ {
+ char *ptr;
+ long n = strtol(optarg, &ptr, 10);
+ if ((n <= 0) && (ptr == optarg))
+ error("argument for -c must be a positive integer");
+ else if (n <= 0 || n > 32767)
+ error("out of range argument for -c");
+ else
+ ncopies = unsigned(n);
+ break;
+ }
+ case 'w':
+ {
+ char *ptr;
+ long n = strtol(optarg, &ptr, 10);
+ if (n == 0 && ptr == optarg)
+ error("argument for -w must be a non-negative integer");
+ else if (n < 0 || n > INT_MAX)
+ error("out of range argument for -w");
+ else
+ linewidth_factor = int(n);
+ break;
+ }
+ case 'h':
+ usage(stdout);
+ break;
+ case '?':
+ usage(stderr);
+ exit(EXIT_FAILURE);
+ break;
+ default:
+ assert(0 == "unhandled getopt_long return value");
+ }
+ }
+ if (optind >= argc)
+ do_file("-");
+ while (optind < argc)
+ do_file(argv[optind++]);
+ if (lbpoutput)
+ lbpputs("\033c\033<");
+ return 0;
+}
+
+// Local Variables:
+// fill-column: 72
+// mode: C++
+// End:
+// vim: set cindent noexpandtab shiftwidth=2 textwidth=72:
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