1 /* PSPP - computes sample statistics.
2 Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
3 Written by Ben Pfaff <blp@gnu.org>.
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
35 /* ASCII driver options: (defaults listed first)
37 output-file="pspp.list"
39 form-feed-string="\f" Written as a formfeed.
40 newline-string=default|"\r\n"|"\n"
42 paginate=on|off Formfeeds are desired?
43 tab-width=8 Width of a tab; 0 to not use tabs.
44 init="" Written at beginning of output.
45 done="" Written at end of output.
47 headers=on|off Put headers at top of page?
50 lpi=6 Only used to determine font size.
52 squeeze=off|on Squeeze multiple newlines into exactly one.
59 box[x]="strng" Sets box character X (X in base 4: 0-3333).
60 italic-on=overstrike|"strng" Turns on italic (underline).
61 italic-off=""|"strng" Turns off italic; ignored for overstrike.
62 bold-on=overstrike|"strng" Turns on bold.
63 bold-off=""|"strng" Turns off bold; ignored for overstrike.
64 bold-italic-on=overstrike|"strng" Turns on bold-italic.
65 bold-italic-off=""|"strng" Turns off bold-italic; ignored for overstrike.
66 overstrike-style=single|line Can we print a whole line then BS over it, or
67 must we go char by char, as on a terminal?
68 carriage-return-style=bs|cr Must we return the carriage with a sequence of
69 BSes, or will a single CR do it?
72 /* Disable messages by failed range checks. */
73 /*#define SUPPRESS_WARNINGS 1 */
78 CHS_ASCII, /* 7-bit ASCII */
79 CHS_LATIN1 /* Latin 1; not really supported at the moment */
82 /* Overstrike style. */
85 OVS_SINGLE, /* Overstrike each character: "a\b_b\b_c\b_" */
86 OVS_LINE /* Overstrike lines: "abc\b\b\b___" (or if
87 newline is "\r\n", then "abc\r___"). Easier
88 on the printer, doesn't work on a tty. */
91 /* Basic output strings. */
94 OPS_INIT, /* Document initialization string. */
95 OPS_DONE, /* Document uninit string. */
96 OPS_FORMFEED, /* Formfeed string. */
97 OPS_NEWLINE, /* Newline string. */
99 OPS_COUNT /* Number of output strings. */
102 /* Line styles bit shifts. */
113 /* Carriage return style. */
116 CRS_BS, /* Multiple backspaces. */
117 CRS_CR /* Single carriage return. */
120 /* Assembles a byte from four taystes. */
121 #define TAYSTE2BYTE(T, L, B, R) \
123 | ((L) << LNS_LEFT) \
124 | ((B) << LNS_BOTTOM) \
125 | ((R) << LNS_RIGHT))
127 /* Extract tayste with shift value S from byte B. */
128 #define BYTE2TAYSTE(B, S) \
131 /* Font style; take one of the first group |'d with one of the second group. */
134 FSTY_ON = 000, /* Turn font on. */
135 FSTY_OFF = 001, /* Turn font off. */
137 FSTY_ITALIC = 0, /* Italic font. */
138 FSTY_BOLD = 2, /* Bold font. */
139 FSTY_BOLD_ITALIC = 4, /* Bold-italic font. */
141 FSTY_COUNT = 6 /* Number of font styles. */
144 /* A line of text. */
147 unsigned short *chars; /* Characters and attributes. */
148 int char_cnt; /* Length. */
149 int char_cap; /* Allocated bytes. */
152 /* ASCII output driver extension record. */
153 struct ascii_driver_ext
155 /* User parameters. */
156 int char_set; /* CHS_ASCII/CHS_LATIN1; no-op right now. */
157 int headers; /* 1=print headers at top of page. */
158 int page_length; /* Page length in lines. */
159 int page_width; /* Page width in characters. */
160 int lpi; /* Lines per inch. */
161 int cpi; /* Characters per inch. */
162 int left_margin; /* Left margin in characters. */
163 int right_margin; /* Right margin in characters. */
164 int top_margin; /* Top margin in lines. */
165 int bottom_margin; /* Bottom margin in lines. */
166 int paginate; /* 1=insert formfeeds. */
167 int tab_width; /* Width of a tab; 0 not to use tabs. */
168 struct len_string ops[OPS_COUNT]; /* Basic output strings. */
169 struct len_string box[LNS_COUNT]; /* Line & box drawing characters. */
170 struct len_string fonts[FSTY_COUNT]; /* Font styles; NULL=overstrike. */
171 int overstrike_style; /* OVS_SINGLE or OVS_LINE. */
172 int carriage_return_style; /* Carriage return style. */
173 int squeeze_blank_lines; /* 1=squeeze multiple blank lines into one. */
175 /* Internal state. */
176 struct file_ext file; /* Output file. */
177 int page_number; /* Current page number. */
178 struct line *lines; /* Page content. */
179 int lines_cap; /* Number of lines allocated. */
180 int w, l; /* Actual width & length w/o margins, etc. */
181 int cur_font; /* Current font by OUTP_F_*. */
183 int debug; /* Set by som_text_draw(). */
187 static int postopen (struct file_ext *);
188 static int preclose (struct file_ext *);
191 ascii_open_global (struct outp_class *this UNUSED)
198 ascii_close_global (struct outp_class *this UNUSED)
204 ascii_font_sizes (struct outp_class *this UNUSED, int *n_valid_sizes)
206 static int valid_sizes[] = {12, 12, 0, 0};
208 assert (n_valid_sizes);
214 ascii_preopen_driver (struct outp_driver *this)
216 struct ascii_driver_ext *x;
219 assert (this->driver_open == 0);
220 msg (VM (1), _("ASCII driver initializing as `%s'..."), this->name);
221 this->ext = x = xmalloc (sizeof (struct ascii_driver_ext));
222 x->char_set = CHS_ASCII;
231 x->bottom_margin = 2;
234 for (i = 0; i < OPS_COUNT; i++)
235 ls_null (&x->ops[i]);
236 for (i = 0; i < LNS_COUNT; i++)
237 ls_null (&x->box[i]);
238 for (i = 0; i < FSTY_COUNT; i++)
239 ls_null (&x->fonts[i]);
240 x->overstrike_style = OVS_SINGLE;
241 x->carriage_return_style = CRS_BS;
242 x->squeeze_blank_lines = 0;
243 x->file.filename = NULL;
246 x->file.sequence_no = &x->page_number;
248 x->file.postopen = postopen;
249 x->file.preclose = preclose;
253 x->cur_font = OUTP_F_R;
261 ascii_postopen_driver (struct outp_driver *this)
263 struct ascii_driver_ext *x = this->ext;
265 assert (this->driver_open == 0);
267 if (NULL == x->file.filename)
268 x->file.filename = xstrdup ("pspp.list");
270 x->w = x->page_width - x->left_margin - x->right_margin;
271 x->l = (x->page_length - (x->headers ? 3 : 0) - x->top_margin
272 - x->bottom_margin - 1);
273 if (x->w < 59 || x->l < 15)
275 msg (SE, _("ascii driver: Area of page excluding margins and headers "
276 "must be at least 59 characters wide by 15 lines long. Page as "
277 "configured is only %d characters by %d lines."), x->w, x->l);
281 this->res = x->lpi * x->cpi;
282 this->horiz = x->lpi;
284 this->width = x->w * this->horiz;
285 this->length = x->l * this->vert;
287 if (ls_null_p (&x->ops[OPS_FORMFEED]))
288 ls_create (&x->ops[OPS_FORMFEED], "\f");
289 if (ls_null_p (&x->ops[OPS_NEWLINE])
290 || !strcmp (ls_c_str (&x->ops[OPS_NEWLINE]), "default"))
292 ls_create (&x->ops[OPS_NEWLINE], "\n");
299 for (i = 0; i < LNS_COUNT; i++)
303 if (!ls_null_p (&x->box[i]))
307 case TAYSTE2BYTE (0, 0, 0, 0):
311 case TAYSTE2BYTE (0, 1, 0, 0):
312 case TAYSTE2BYTE (0, 1, 0, 1):
313 case TAYSTE2BYTE (0, 0, 0, 1):
317 case TAYSTE2BYTE (1, 0, 0, 0):
318 case TAYSTE2BYTE (1, 0, 1, 0):
319 case TAYSTE2BYTE (0, 0, 1, 0):
323 case TAYSTE2BYTE (0, 3, 0, 0):
324 case TAYSTE2BYTE (0, 3, 0, 3):
325 case TAYSTE2BYTE (0, 0, 0, 3):
326 case TAYSTE2BYTE (0, 2, 0, 0):
327 case TAYSTE2BYTE (0, 2, 0, 2):
328 case TAYSTE2BYTE (0, 0, 0, 2):
332 case TAYSTE2BYTE (3, 0, 0, 0):
333 case TAYSTE2BYTE (3, 0, 3, 0):
334 case TAYSTE2BYTE (0, 0, 3, 0):
335 case TAYSTE2BYTE (2, 0, 0, 0):
336 case TAYSTE2BYTE (2, 0, 2, 0):
337 case TAYSTE2BYTE (0, 0, 2, 0):
342 if (BYTE2TAYSTE (i, LNS_LEFT) > 1
343 || BYTE2TAYSTE (i, LNS_TOP) > 1
344 || BYTE2TAYSTE (i, LNS_RIGHT) > 1
345 || BYTE2TAYSTE (i, LNS_BOTTOM) > 1)
351 ls_create (&x->box[i], c);
358 this->cp_x = this->cp_y = 0;
359 this->font_height = this->vert;
360 this->prop_em_width = this->horiz;
361 this->fixed_width = this->horiz;
363 this->horiz_line_width[0] = 0;
364 this->vert_line_width[0] = 0;
366 for (i = 1; i < OUTP_L_COUNT; i++)
368 this->horiz_line_width[i] = this->vert;
369 this->vert_line_width[i] = this->horiz;
372 for (i = 0; i < (1 << OUTP_L_COUNT); i++)
374 this->horiz_line_spacing[i] = (i & ~1) ? this->vert : 0;
375 this->vert_line_spacing[i] = (i & ~1) ? this->horiz : 0;
379 this->driver_open = 1;
380 msg (VM (2), _("%s: Initialization complete."), this->name);
386 ascii_close_driver (struct outp_driver *this)
388 struct ascii_driver_ext *x = this->ext;
391 assert (this->driver_open == 1);
392 msg (VM (2), _("%s: Beginning closing..."), this->name);
395 for (i = 0; i < OPS_COUNT; i++)
396 ls_destroy (&x->ops[i]);
397 for (i = 0; i < LNS_COUNT; i++)
398 ls_destroy (&x->box[i]);
399 for (i = 0; i < FSTY_COUNT; i++)
400 ls_destroy (&x->fonts[i]);
401 if (x->lines != NULL)
405 for (line = 0; line < x->lines_cap; line++)
406 free (x->lines[line].chars);
409 fn_close_ext (&x->file);
410 free (x->file.filename);
413 this->driver_open = 0;
414 msg (VM (3), _("%s: Finished closing."), this->name);
419 /* Generic option types. */
429 static struct outp_option option_tab[] =
431 {"headers", boolean_arg, 0},
432 {"output-file", 1, 0},
434 {"length", pos_int_arg, 0},
435 {"width", pos_int_arg, 1},
436 {"lpi", pos_int_arg, 2},
437 {"cpi", pos_int_arg, 3},
438 {"init", string_arg, 0},
439 {"done", string_arg, 1},
440 {"left-margin", nonneg_int_arg, 0},
441 {"right-margin", nonneg_int_arg, 1},
442 {"top-margin", nonneg_int_arg, 2},
443 {"bottom-margin", nonneg_int_arg, 3},
444 {"paginate", boolean_arg, 1},
445 {"form-feed-string", string_arg, 2},
446 {"newline-string", string_arg, 3},
447 {"italic-on", font_string_arg, 0},
448 {"italic-off", font_string_arg, 1},
449 {"bold-on", font_string_arg, 2},
450 {"bold-off", font_string_arg, 3},
451 {"bold-italic-on", font_string_arg, 4},
452 {"bold-italic-off", font_string_arg, 5},
453 {"overstrike-style", 3, 0},
454 {"tab-width", nonneg_int_arg, 4},
455 {"carriage-return-style", 4, 0},
456 {"squeeze", boolean_arg, 2},
459 static struct outp_option_info option_info;
462 ascii_option (struct outp_driver *this, const char *key,
463 const struct string *val)
465 struct ascii_driver_ext *x = this->ext;
469 value = ds_c_str (val);
470 if (!strncmp (key, "box[", 4))
473 int indx = strtol (&key[4], &tail, 4);
474 if (*tail != ']' || indx < 0 || indx > LNS_COUNT)
476 msg (SE, _("Bad index value for `box' key: syntax is box[INDEX], "
477 "0 <= INDEX < %d decimal, with INDEX expressed in base 4."),
481 if (!ls_null_p (&x->box[indx]))
482 msg (SW, _("Duplicate value for key `%s'."), key);
483 ls_create (&x->box[indx], value);
487 cat = outp_match_keyword (key, option_tab, &option_info, &subcat);
491 msg (SE, _("Unknown configuration parameter `%s' for ascii device driver."),
495 free (x->file.filename);
496 x->file.filename = xstrdup (value);
499 if (!strcmp (value, "ascii"))
500 x->char_set = CHS_ASCII;
501 else if (!strcmp (value, "latin1"))
502 x->char_set = CHS_LATIN1;
504 msg (SE, _("Unknown character set `%s'. Valid character sets are "
505 "`ascii' and `latin1'."), value);
508 if (!strcmp (value, "single"))
509 x->overstrike_style = OVS_SINGLE;
510 else if (!strcmp (value, "line"))
511 x->overstrike_style = OVS_LINE;
513 msg (SE, _("Unknown overstrike style `%s'. Valid overstrike styles "
514 "are `single' and `line'."), value);
517 if (!strcmp (value, "bs"))
518 x->carriage_return_style = CRS_BS;
519 else if (!strcmp (value, "cr"))
520 x->carriage_return_style = CRS_CR;
522 msg (SE, _("Unknown carriage return style `%s'. Valid carriage "
523 "return styles are `cr' and `bs'."), value);
531 arg = strtol (value, &tail, 0);
532 if (arg < 1 || errno == ERANGE || *tail)
534 msg (SE, _("Positive integer required as value for `%s'."), key);
540 x->page_length = arg;
562 arg = strtol (value, &tail, 0);
563 if (arg < 0 || errno == ERANGE || *tail)
565 msg (SE, _("Zero or positive integer required as value for `%s'."),
572 x->left_margin = arg;
575 x->right_margin = arg;
581 x->bottom_margin = arg;
593 struct len_string *s;
597 s = &x->ops[OPS_INIT];
600 s = &x->ops[OPS_DONE];
603 s = &x->ops[OPS_FORMFEED];
606 s = &x->ops[OPS_NEWLINE];
612 ls_create (s, value);
615 case font_string_arg:
617 if (!strcmp (value, "overstrike"))
619 ls_destroy (&x->fonts[subcat]);
622 ls_create (&x->fonts[subcat], value);
628 if (!strcmp (value, "on") || !strcmp (value, "true")
629 || !strcmp (value, "yes") || atoi (value))
631 else if (!strcmp (value, "off") || !strcmp (value, "false")
632 || !strcmp (value, "no") || !strcmp (value, "0"))
636 msg (SE, _("Boolean value expected for %s."), key);
642 x->headers = setting;
645 x->paginate = setting;
648 x->squeeze_blank_lines = setting;
661 postopen (struct file_ext *f)
663 struct ascii_driver_ext *x = f->param;
664 struct len_string *s = &x->ops[OPS_INIT];
666 if (!ls_empty_p (s) && fwrite (ls_c_str (s), ls_length (s), 1, f->file) < 1)
668 msg (ME, _("ASCII output driver: %s: %s"),
669 f->filename, strerror (errno));
676 preclose (struct file_ext *f)
678 struct ascii_driver_ext *x = f->param;
679 struct len_string *d = &x->ops[OPS_DONE];
681 if (!ls_empty_p (d) && fwrite (ls_c_str (d), ls_length (d), 1, f->file) < 1)
683 msg (ME, _("ASCII output driver: %s: %s"),
684 f->filename, strerror (errno));
691 ascii_open_page (struct outp_driver *this)
693 struct ascii_driver_ext *x = this->ext;
696 assert (this->driver_open && !this->page_open);
698 if (!fn_open_ext (&x->file))
700 msg (ME, _("ASCII output driver: %s: %s"), x->file.filename,
705 if (x->l > x->lines_cap)
707 x->lines = xrealloc (x->lines, sizeof *x->lines * x->l);
708 for (i = x->lines_cap; i < x->l; i++)
710 struct line *line = &x->lines[i];
717 for (i = 0; i < x->l; i++)
718 x->lines[i].char_cnt = 0;
724 /* Ensures that at least the first L characters of line I in the
725 driver identified by struct ascii_driver_ext *X have been cleared out. */
727 expand_line (struct ascii_driver_ext *x, int i, int l)
732 assert (i < x->lines_cap);
734 if (l > line->char_cap)
736 line->char_cap = l * 2;
737 line->chars = xrealloc (line->chars,
738 line->char_cap * sizeof *line->chars);
740 for (j = line->char_cnt; j < l; j++)
741 line->chars[j] = ' ';
745 /* Puts line L at (H,K) in the current output page. Assumes
746 struct ascii_driver_ext named `ext'. */
747 #define draw_line(H, K, L) \
748 ext->lines[K].chars[H] = (L) | 0x800
750 /* Line styles for each position. */
751 #define T(STYLE) (STYLE<<LNS_TOP)
752 #define L(STYLE) (STYLE<<LNS_LEFT)
753 #define B(STYLE) (STYLE<<LNS_BOTTOM)
754 #define R(STYLE) (STYLE<<LNS_RIGHT)
757 ascii_line_horz (struct outp_driver *this, const struct rect *r,
758 const struct color *c UNUSED, int style)
760 struct ascii_driver_ext *ext = this->ext;
761 int x1 = r->x1 / this->horiz;
762 int x2 = r->x2 / this->horiz;
763 int y1 = r->y1 / this->vert;
766 assert (this->driver_open && this->page_open);
771 || x1 < 0 || x1 >= ext->w
772 || x2 <= 0 || x2 > ext->w
773 || y1 < 0 || y1 >= ext->l)
775 #if !SUPPRESS_WARNINGS
776 printf (_("ascii_line_horz: bad hline (%d,%d),%d out of (%d,%d)\n"),
777 x1, x2, y1, ext->w, ext->l);
783 if (ext->lines[y1].char_cnt < x2)
784 expand_line (ext, y1, x2);
786 for (x = x1; x < x2; x++)
787 draw_line (x, y1, (style << LNS_LEFT) | (style << LNS_RIGHT));
791 ascii_line_vert (struct outp_driver *this, const struct rect *r,
792 const struct color *c UNUSED, int style)
794 struct ascii_driver_ext *ext = this->ext;
795 int x1 = r->x1 / this->horiz;
796 int y1 = r->y1 / this->vert;
797 int y2 = r->y2 / this->vert;
800 assert (this->driver_open && this->page_open);
805 || x1 < 0 || x1 >= ext->w
806 || y1 < 0 || y1 >= ext->l
807 || y2 < 0 || y2 > ext->l)
809 #if !SUPPRESS_WARNINGS
810 printf (_("ascii_line_vert: bad vline %d,(%d,%d) out of (%d,%d)\n"),
811 x1, y1, y2, ext->w, ext->l);
817 for (y = y1; y < y2; y++)
818 if (ext->lines[y].char_cnt <= x1)
819 expand_line (ext, y, x1 + 1);
821 for (y = y1; y < y2; y++)
822 draw_line (x1, y, (style << LNS_TOP) | (style << LNS_BOTTOM));
826 ascii_line_intersection (struct outp_driver *this, const struct rect *r,
827 const struct color *c UNUSED,
828 const struct outp_styles *style)
830 struct ascii_driver_ext *ext = this->ext;
831 int x = r->x1 / this->horiz;
832 int y = r->y1 / this->vert;
835 assert (this->driver_open && this->page_open);
837 if (x < 0 || x >= ext->w || y < 0 || y >= ext->l)
839 #if !SUPPRESS_WARNINGS
840 printf (_("ascii_line_intersection: bad intsct (%d,%d) out of (%d,%d)\n"),
841 x, y, ext->w, ext->l);
847 l = ((style->l << LNS_LEFT) | (style->r << LNS_RIGHT)
848 | (style->t << LNS_TOP) | (style->b << LNS_BOTTOM));
850 if (ext->lines[y].char_cnt <= x)
851 expand_line (ext, y, x + 1);
855 /* FIXME: Later we could set this up so that for certain devices it
858 ascii_box (struct outp_driver *this UNUSED, const struct rect *r UNUSED,
859 const struct color *bord UNUSED, const struct color *fill UNUSED)
861 assert (this->driver_open && this->page_open);
864 /* Polylines not supported. */
866 ascii_polyline_begin (struct outp_driver *this UNUSED, const struct color *c UNUSED)
868 assert (this->driver_open && this->page_open);
871 ascii_polyline_point (struct outp_driver *this UNUSED, int x UNUSED, int y UNUSED)
873 assert (this->driver_open && this->page_open);
876 ascii_polyline_end (struct outp_driver *this UNUSED)
878 assert (this->driver_open && this->page_open);
882 ascii_text_set_font_by_name (struct outp_driver * this, const char *s)
884 struct ascii_driver_ext *x = this->ext;
885 int len = strlen (s);
887 assert (this->driver_open && this->page_open);
888 x->cur_font = OUTP_F_R;
891 if (s[len - 1] == 'I')
893 if (len > 1 && s[len - 2] == 'B')
894 x->cur_font = OUTP_F_BI;
896 x->cur_font = OUTP_F_I;
898 else if (s[len - 1] == 'B')
899 x->cur_font = OUTP_F_B;
903 ascii_text_set_font_by_position (struct outp_driver *this, int pos)
905 struct ascii_driver_ext *x = this->ext;
906 assert (this->driver_open && this->page_open);
907 x->cur_font = pos >= 0 && pos < 4 ? pos : 0;
911 ascii_text_set_font_by_family (struct outp_driver *this UNUSED, const char *s UNUSED)
913 assert (this->driver_open && this->page_open);
917 ascii_text_get_font_name (struct outp_driver *this)
919 struct ascii_driver_ext *x = this->ext;
921 assert (this->driver_open && this->page_open);
939 ascii_text_get_font_family (struct outp_driver *this UNUSED)
941 assert (this->driver_open && this->page_open);
946 ascii_text_set_size (struct outp_driver *this, int size)
948 assert (this->driver_open && this->page_open);
949 return size == this->vert;
953 ascii_text_get_size (struct outp_driver *this, int *em_width)
955 assert (this->driver_open && this->page_open);
957 *em_width = this->horiz;
961 static void text_draw (struct outp_driver *this, struct outp_text *t);
963 /* Divides the text T->S into lines of width T->H. Sets T->V to the
964 number of lines necessary. Actually draws the text if DRAW is
967 You probably don't want to look at this code. */
969 delineate (struct outp_driver *this, struct outp_text *t, int draw)
971 /* Width we're fitting everything into. */
972 int width = t->h / this->horiz;
974 /* Maximum `y' position we can write to. */
977 /* Current position in string, character following end of string. */
978 const char *s = ls_c_str (&t->s);
979 const char *end = ls_end (&t->s);
981 /* Temporary struct outp_text to pass to low-level function. */
982 struct outp_text temp;
984 #if GLOBAL_DEBUGGING && 0
988 printf (_("%s: horiz=%d, vert=%d\n"), this->name, this->horiz, this->vert);
1000 temp.options = t->options;
1001 ls_shallow_copy (&temp.s, &t->s);
1002 temp.h = t->h / this->horiz;
1003 temp.x = t->x / this->horiz;
1007 temp.y = t->y / this->vert;
1009 if (t->options & OUTP_T_VERT)
1010 max_y = (t->v / this->vert) + temp.y - 1;
1014 while (end - s > width)
1016 const char *beg = s;
1019 /* Find first space before &s[width]. */
1025 if (!isspace ((unsigned char) space[-1]))
1034 s = space = &s[width];
1041 ls_init (&temp.s, beg, space - beg);
1042 temp.w = space - beg;
1043 text_draw (this, &temp);
1045 if (++temp.y > max_y)
1048 /* Find first nonspace after space. */
1049 while (s < end && isspace ((unsigned char) *s))
1056 ls_init (&temp.s, s, end - s);
1058 text_draw (this, &temp);
1063 t->v = (temp.y * this->vert) - t->y;
1067 ascii_text_metrics (struct outp_driver *this, struct outp_text *t)
1069 assert (this->driver_open && this->page_open);
1070 if (!(t->options & OUTP_T_HORZ))
1073 t->h = ls_length (&t->s) * this->horiz;
1076 delineate (this, t, 0);
1080 ascii_text_draw (struct outp_driver *this, struct outp_text *t)
1082 /* FIXME: orientations not supported. */
1083 assert (this->driver_open && this->page_open);
1084 if (!(t->options & OUTP_T_HORZ))
1086 struct outp_text temp;
1088 temp.options = t->options;
1090 temp.h = temp.v = 0;
1091 temp.x = t->x / this->horiz;
1092 temp.y = t->y / this->vert;
1093 text_draw (this, &temp);
1094 ascii_text_metrics (this, t);
1098 delineate (this, t, 1);
1102 text_draw (struct outp_driver *this, struct outp_text *t)
1104 struct ascii_driver_ext *ext = this->ext;
1105 unsigned attr = ext->cur_font << 8;
1110 char *s = ls_c_str (&t->s);
1112 /* Expand the line with the assumption that S takes up LEN character
1113 spaces (sometimes it takes up less). */
1116 assert (this->driver_open && this->page_open);
1117 switch (t->options & OUTP_T_JUST_MASK)
1119 case OUTP_T_JUST_LEFT:
1121 case OUTP_T_JUST_CENTER:
1122 x -= (t->h - t->w) / 2; /* fall through */
1123 case OUTP_T_JUST_RIGHT:
1130 if (!(t->y < ext->l && x < ext->w))
1132 min_len = min (x + ls_length (&t->s), ext->w);
1133 if (ext->lines[t->y].char_cnt < min_len)
1134 expand_line (ext, t->y, min_len);
1137 int len = ls_length (&t->s);
1139 if (len + x > ext->w)
1142 ext->lines[y].chars[x++] = *s++ | attr;
1146 /* ascii_close_page () and support routines. */
1148 #define LINE_BUF_SIZE 1024
1149 static unsigned char *line_buf;
1150 static unsigned char *line_p;
1153 commit_line_buf (struct outp_driver *this)
1155 struct ascii_driver_ext *x = this->ext;
1157 if ((int) fwrite (line_buf, 1, line_p - line_buf, x->file.file)
1158 < line_p - line_buf)
1160 msg (ME, _("Writing `%s': %s"), x->file.filename, strerror (errno));
1168 /* Writes everything from BP to EP exclusive into line_buf, or to
1169 THIS->output if line_buf overflows. */
1171 output_string (struct outp_driver *this, const char *bp, const char *ep)
1173 if (LINE_BUF_SIZE - (line_p - line_buf) >= ep - bp)
1175 memcpy (line_p, bp, ep - bp);
1181 if (LINE_BUF_SIZE - (line_p - line_buf) <= 1 && !commit_line_buf (this))
1187 /* Writes everything from BP to EP exclusive into line_buf, or to
1188 THIS->output if line_buf overflows. Returns 1 if additional passes
1189 over the line are required. FIXME: probably could do a lot of
1190 optimization here. */
1192 output_shorts (struct outp_driver *this,
1193 const unsigned short *bp, const unsigned short *ep)
1195 struct ascii_driver_ext *ext = this->ext;
1196 size_t remaining = LINE_BUF_SIZE - (line_p - line_buf);
1199 for (; bp < ep; bp++)
1203 struct len_string *box = &ext->box[*bp & 0xff];
1204 size_t len = ls_length (box);
1206 if (remaining >= len)
1208 memcpy (line_p, ls_c_str (box), len);
1214 if (!commit_line_buf (this))
1216 output_string (this, ls_c_str (box), ls_end (box));
1217 remaining = LINE_BUF_SIZE - (line_p - line_buf);
1220 else if (*bp & 0x0300)
1222 struct len_string *on;
1226 switch (*bp & 0x0300)
1229 on = &ext->fonts[FSTY_ON | FSTY_ITALIC];
1232 on = &ext->fonts[FSTY_ON | FSTY_BOLD];
1234 case OUTP_F_BI << 8:
1235 on = &ext->fonts[FSTY_ON | FSTY_BOLD_ITALIC];
1243 if (ext->overstrike_style == OVS_SINGLE)
1244 switch (*bp & 0x0300)
1258 case OUTP_F_BI << 8:
1281 output_string (this, buf, &buf[len]);
1290 if (!commit_line_buf (this))
1292 remaining = LINE_BUF_SIZE - (line_p - line_buf);
1300 /* Writes CH into line_buf N times, or to THIS->output if line_buf
1303 output_char (struct outp_driver *this, int n, int ch)
1305 if (LINE_BUF_SIZE - (line_p - line_buf) >= n)
1307 memset (line_p, ch, n);
1313 if (LINE_BUF_SIZE - (line_p - line_buf) <= 1 && !commit_line_buf (this))
1319 /* Advance the carriage from column 0 to the left margin. */
1321 advance_to_left_margin (struct outp_driver *this)
1323 struct ascii_driver_ext *ext = this->ext;
1326 margin = ext->left_margin;
1329 if (ext->tab_width && margin >= ext->tab_width)
1331 output_char (this, margin / ext->tab_width, '\t');
1332 margin %= ext->tab_width;
1335 output_char (this, margin, ' ');
1338 /* Move the output file carriage N_CHARS left, to the left margin. */
1340 return_carriage (struct outp_driver *this, int n_chars)
1342 struct ascii_driver_ext *ext = this->ext;
1344 switch (ext->carriage_return_style)
1347 output_char (this, n_chars, '\b');
1350 output_char (this, 1, '\r');
1351 advance_to_left_margin (this);
1359 /* Writes COUNT lines from the line buffer in THIS, starting at line
1362 output_lines (struct outp_driver *this, int first, int count)
1364 struct ascii_driver_ext *ext = this->ext;
1367 struct len_string *newline = &ext->ops[OPS_NEWLINE];
1372 if (NULL == ext->file.file)
1375 /* Iterate over all the lines to be output. */
1376 for (line_num = first; line_num < first + count; line_num++)
1378 struct line *line = &ext->lines[line_num];
1379 unsigned short *p = line->chars;
1380 unsigned short *end_p = p + line->char_cnt;
1381 unsigned short *bp, *ep;
1382 unsigned short attr = 0;
1384 assert (end_p >= p);
1386 /* Squeeze multiple blank lines into a single blank line if
1388 if (ext->squeeze_blank_lines
1390 && ext->lines[line_num].char_cnt == 0
1391 && ext->lines[line_num - 1].char_cnt == 0)
1394 /* Output every character in the line in the appropriate
1399 advance_to_left_margin (this);
1402 while (ep < end_p && attr == (*ep & 0x0300))
1404 if (output_shorts (this, bp, ep))
1412 /* Turn off old font. */
1413 if (attr != (OUTP_F_R << 8))
1415 struct len_string *off;
1420 off = &ext->fonts[FSTY_OFF | FSTY_ITALIC];
1423 off = &ext->fonts[FSTY_OFF | FSTY_BOLD];
1425 case OUTP_F_BI << 8:
1426 off = &ext->fonts[FSTY_OFF | FSTY_BOLD_ITALIC];
1433 output_string (this, ls_c_str (off), ls_end (off));
1436 /* Turn on new font. */
1437 attr = (*bp & 0x0300);
1438 if (attr != (OUTP_F_R << 8))
1440 struct len_string *on;
1445 on = &ext->fonts[FSTY_ON | FSTY_ITALIC];
1448 on = &ext->fonts[FSTY_ON | FSTY_BOLD];
1450 case OUTP_F_BI << 8:
1451 on = &ext->fonts[FSTY_ON | FSTY_BOLD_ITALIC];
1458 output_string (this, ls_c_str (on), ls_end (on));
1467 return_carriage (this, n_chars);
1472 while (ep < end_p && (*ep & 0x0300) == (OUTP_F_R << 8))
1476 output_char (this, ep - bp, ' ');
1478 switch (*ep & 0x0300)
1486 case OUTP_F_BI << 8:
1494 output_char (this, 1, ch);
1495 n_chars += ep - bp + 1;
1502 return_carriage (this, n_chars);
1506 while (ep < end_p && (*ep & 0x0300) != (OUTP_F_BI << 8))
1510 output_char (this, ep - bp, ' ');
1511 output_char (this, 1, '_');
1517 output_string (this, ls_c_str (newline), ls_end (newline));
1522 ascii_close_page (struct outp_driver *this)
1524 static unsigned char *s;
1527 struct ascii_driver_ext *x = this->ext;
1528 int nl_len, ff_len, total_len;
1532 assert (this->driver_open && this->page_open);
1535 line_buf = xmalloc (LINE_BUF_SIZE);
1538 nl_len = ls_length (&x->ops[OPS_NEWLINE]);
1541 total_len = x->top_margin * nl_len;
1542 if (s_len < total_len)
1545 s = xrealloc (s, s_len);
1547 for (cp = s, i = 0; i < x->top_margin; i++)
1549 memcpy (cp, ls_c_str (&x->ops[OPS_NEWLINE]), nl_len);
1552 output_string (this, s, &s[total_len]);
1558 total_len = nl_len + x->w;
1559 if (s_len < total_len + 1)
1561 s_len = total_len + 1;
1562 s = xrealloc (s, s_len);
1565 memset (s, ' ', x->w);
1570 snprintf (temp, 80, _("%s - Page %d"), curdate, x->page_number);
1571 memcpy (&s[x->w - strlen (temp)], temp, strlen (temp));
1574 if (outp_title && outp_subtitle)
1576 len = min ((int) strlen (outp_title), x->w);
1577 memcpy (s, outp_title, len);
1579 memcpy (&s[x->w], ls_c_str (&x->ops[OPS_NEWLINE]), nl_len);
1580 output_string (this, s, &s[total_len]);
1582 memset (s, ' ', x->w);
1583 len = strlen (version) + 3 + strlen (host_system);
1585 sprintf (&s[x->w - len], "%s - %s" , version, host_system);
1586 if (outp_subtitle || outp_title)
1588 char *string = outp_subtitle ? outp_subtitle : outp_title;
1589 len = min ((int) strlen (string), x->w);
1590 memcpy (s, string, len);
1592 memcpy (&s[x->w], ls_c_str (&x->ops[OPS_NEWLINE]), nl_len);
1593 output_string (this, s, &s[total_len]);
1594 output_string (this, &s[x->w], &s[total_len]);
1596 if (line_p != line_buf && !commit_line_buf (this))
1599 output_lines (this, 0, x->l);
1601 ff_len = ls_length (&x->ops[OPS_FORMFEED]);
1602 total_len = x->bottom_margin * nl_len + ff_len;
1603 if (s_len < total_len)
1604 s = xrealloc (s, total_len);
1605 for (cp = s, i = 0; i < x->bottom_margin; i++)
1607 memcpy (cp, ls_c_str (&x->ops[OPS_NEWLINE]), nl_len);
1610 memcpy (cp, ls_c_str (&x->ops[OPS_FORMFEED]), ff_len);
1612 output_string (this, s, &s[total_len]);
1613 if (line_p != line_buf && !commit_line_buf (this))
1616 this->page_open = 0;
1620 struct outp_class ascii_class =
1630 ascii_preopen_driver,
1632 ascii_postopen_driver,
1642 ascii_line_intersection,
1645 ascii_polyline_begin,
1646 ascii_polyline_point,
1649 ascii_text_set_font_by_name,
1650 ascii_text_set_font_by_position,
1651 ascii_text_set_font_by_family,
1652 ascii_text_get_font_name,
1653 ascii_text_get_font_family,
1654 ascii_text_set_size,
1655 ascii_text_get_size,