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 /* ASCII output driver extension record. */
145 struct ascii_driver_ext
147 /* User parameters. */
148 int char_set; /* CHS_ASCII/CHS_LATIN1; no-op right now. */
149 int headers; /* 1=print headers at top of page. */
150 int page_length; /* Page length in lines. */
151 int page_width; /* Page width in characters. */
152 int lpi; /* Lines per inch. */
153 int cpi; /* Characters per inch. */
154 int left_margin; /* Left margin in characters. */
155 int right_margin; /* Right margin in characters. */
156 int top_margin; /* Top margin in lines. */
157 int bottom_margin; /* Bottom margin in lines. */
158 int paginate; /* 1=insert formfeeds. */
159 int tab_width; /* Width of a tab; 0 not to use tabs. */
160 struct len_string ops[OPS_COUNT]; /* Basic output strings. */
161 struct len_string box[LNS_COUNT]; /* Line & box drawing characters. */
162 struct len_string fonts[FSTY_COUNT]; /* Font styles; NULL=overstrike. */
163 int overstrike_style; /* OVS_SINGLE or OVS_LINE. */
164 int carriage_return_style; /* Carriage return style. */
165 int squeeze_blank_lines; /* 1=squeeze multiple blank lines into one. */
167 /* Internal state. */
168 struct file_ext file; /* Output file. */
169 int page_number; /* Current page number. */
170 unsigned short *page; /* Page content. */
171 int page_size; /* Number of bytes allocated for page, attr. */
172 int *line_len; /* Length of each line in page, attr. */
173 int line_len_size; /* Number of ints allocated for line_len. */
174 int w, l; /* Actual width & length w/o margins, etc. */
175 int n_output; /* Number of lines output so far. */
176 int cur_font; /* Current font by OUTP_F_*. */
178 int debug; /* Set by som_text_draw(). */
182 static struct pool *ascii_pool;
184 static int postopen (struct file_ext *);
185 static int preclose (struct file_ext *);
188 ascii_open_global (struct outp_class *this UNUSED)
190 ascii_pool = pool_create ();
195 ascii_close_global (struct outp_class *this UNUSED)
197 pool_destroy (ascii_pool);
202 ascii_font_sizes (struct outp_class *this UNUSED, int *n_valid_sizes)
204 static int valid_sizes[] = {12, 12, 0, 0};
206 assert (n_valid_sizes);
212 ascii_preopen_driver (struct outp_driver *this)
214 struct ascii_driver_ext *x;
217 assert (this->driver_open == 0);
218 msg (VM (1), _("ASCII driver initializing as `%s'..."), this->name);
219 this->ext = x = xmalloc (sizeof (struct ascii_driver_ext));
220 x->char_set = CHS_ASCII;
229 x->bottom_margin = 2;
232 for (i = 0; i < OPS_COUNT; i++)
233 ls_null (&x->ops[i]);
234 for (i = 0; i < LNS_COUNT; i++)
235 ls_null (&x->box[i]);
236 for (i = 0; i < FSTY_COUNT; i++)
237 ls_null (&x->fonts[i]);
238 x->overstrike_style = OVS_SINGLE;
239 x->carriage_return_style = CRS_BS;
240 x->squeeze_blank_lines = 0;
241 x->file.filename = NULL;
244 x->file.sequence_no = &x->page_number;
246 x->file.postopen = postopen;
247 x->file.preclose = preclose;
252 x->line_len_size = 0;
254 x->cur_font = OUTP_F_R;
262 ascii_postopen_driver (struct outp_driver *this)
264 struct ascii_driver_ext *x = this->ext;
266 assert (this->driver_open == 0);
268 if (NULL == x->file.filename)
269 x->file.filename = xstrdup ("pspp.list");
271 x->w = x->page_width - x->left_margin - x->right_margin;
272 x->l = (x->page_length - (x->headers ? 3 : 0) - x->top_margin
273 - x->bottom_margin - 1);
274 if (x->w < 59 || x->l < 15)
276 msg (SE, _("ascii driver: Area of page excluding margins and headers "
277 "must be at least 59 characters wide by 15 lines long. Page as "
278 "configured is only %d characters by %d lines."), x->w, x->l);
282 this->res = x->lpi * x->cpi;
283 this->horiz = x->lpi;
285 this->width = x->w * this->horiz;
286 this->length = x->l * this->vert;
288 if (ls_null_p (&x->ops[OPS_FORMFEED]))
289 ls_create (ascii_pool, &x->ops[OPS_FORMFEED], "\f");
290 if (ls_null_p (&x->ops[OPS_NEWLINE])
291 || !strcmp (ls_value (&x->ops[OPS_NEWLINE]), "default"))
293 ls_create (ascii_pool, &x->ops[OPS_NEWLINE], "\n");
300 for (i = 0; i < LNS_COUNT; i++)
304 if (!ls_null_p (&x->box[i]))
308 case TAYSTE2BYTE (0, 0, 0, 0):
312 case TAYSTE2BYTE (0, 1, 0, 0):
313 case TAYSTE2BYTE (0, 1, 0, 1):
314 case TAYSTE2BYTE (0, 0, 0, 1):
318 case TAYSTE2BYTE (1, 0, 0, 0):
319 case TAYSTE2BYTE (1, 0, 1, 0):
320 case TAYSTE2BYTE (0, 0, 1, 0):
324 case TAYSTE2BYTE (0, 3, 0, 0):
325 case TAYSTE2BYTE (0, 3, 0, 3):
326 case TAYSTE2BYTE (0, 0, 0, 3):
327 case TAYSTE2BYTE (0, 2, 0, 0):
328 case TAYSTE2BYTE (0, 2, 0, 2):
329 case TAYSTE2BYTE (0, 0, 0, 2):
333 case TAYSTE2BYTE (3, 0, 0, 0):
334 case TAYSTE2BYTE (3, 0, 3, 0):
335 case TAYSTE2BYTE (0, 0, 3, 0):
336 case TAYSTE2BYTE (2, 0, 0, 0):
337 case TAYSTE2BYTE (2, 0, 2, 0):
338 case TAYSTE2BYTE (0, 0, 2, 0):
343 if (BYTE2TAYSTE (i, LNS_LEFT) > 1
344 || BYTE2TAYSTE (i, LNS_TOP) > 1
345 || BYTE2TAYSTE (i, LNS_RIGHT) > 1
346 || BYTE2TAYSTE (i, LNS_BOTTOM) > 1)
352 ls_create (ascii_pool, &x->box[i], c);
359 this->cp_x = this->cp_y = 0;
360 this->font_height = this->vert;
361 this->prop_em_width = this->horiz;
362 this->fixed_width = this->horiz;
364 this->horiz_line_width[0] = 0;
365 this->vert_line_width[0] = 0;
367 for (i = 1; i < OUTP_L_COUNT; i++)
369 this->horiz_line_width[i] = this->vert;
370 this->vert_line_width[i] = this->horiz;
373 for (i = 0; i < (1 << OUTP_L_COUNT); i++)
375 this->horiz_line_spacing[i] = (i & ~1) ? this->vert : 0;
376 this->vert_line_spacing[i] = (i & ~1) ? this->horiz : 0;
380 this->driver_open = 1;
381 msg (VM (2), _("%s: Initialization complete."), this->name);
387 ascii_close_driver (struct outp_driver *this)
389 struct ascii_driver_ext *x = this->ext;
391 assert (this->driver_open == 1);
392 msg (VM (2), _("%s: Beginning closing..."), this->name);
397 fn_close_ext (&x->file);
398 free (x->file.filename);
401 this->driver_open = 0;
402 msg (VM (3), _("%s: Finished closing."), this->name);
407 /* Generic option types. */
417 static struct outp_option option_tab[] =
419 {"headers", boolean_arg, 0},
420 {"output-file", 1, 0},
422 {"length", pos_int_arg, 0},
423 {"width", pos_int_arg, 1},
424 {"lpi", pos_int_arg, 2},
425 {"cpi", pos_int_arg, 3},
426 {"init", string_arg, 0},
427 {"done", string_arg, 1},
428 {"left-margin", nonneg_int_arg, 0},
429 {"right-margin", nonneg_int_arg, 1},
430 {"top-margin", nonneg_int_arg, 2},
431 {"bottom-margin", nonneg_int_arg, 3},
432 {"paginate", boolean_arg, 1},
433 {"form-feed-string", string_arg, 2},
434 {"newline-string", string_arg, 3},
435 {"italic-on", font_string_arg, 0},
436 {"italic-off", font_string_arg, 1},
437 {"bold-on", font_string_arg, 2},
438 {"bold-off", font_string_arg, 3},
439 {"bold-italic-on", font_string_arg, 4},
440 {"bold-italic-off", font_string_arg, 5},
441 {"overstrike-style", 3, 0},
442 {"tab-width", nonneg_int_arg, 4},
443 {"carriage-return-style", 4, 0},
444 {"squeeze", boolean_arg, 2},
447 static struct outp_option_info option_info;
450 ascii_option (struct outp_driver *this, const char *key,
451 const struct string *val)
453 struct ascii_driver_ext *x = this->ext;
457 value = ds_value (val);
458 if (!strncmp (key, "box[", 4))
461 int indx = strtol (&key[4], &tail, 4);
462 if (*tail != ']' || indx < 0 || indx > LNS_COUNT)
464 msg (SE, _("Bad index value for `box' key: syntax is box[INDEX], "
465 "0 <= INDEX < %d decimal, with INDEX expressed in base 4."),
469 if (!ls_null_p (&x->box[indx]))
470 msg (SW, _("Duplicate value for key `%s'."), key);
471 ls_create (ascii_pool, &x->box[indx], value);
475 cat = outp_match_keyword (key, option_tab, &option_info, &subcat);
479 msg (SE, _("Unknown configuration parameter `%s' for ascii device driver."),
483 free (x->file.filename);
484 x->file.filename = xstrdup (value);
487 if (!strcmp (value, "ascii"))
488 x->char_set = CHS_ASCII;
489 else if (!strcmp (value, "latin1"))
490 x->char_set = CHS_LATIN1;
492 msg (SE, _("Unknown character set `%s'. Valid character sets are "
493 "`ascii' and `latin1'."), value);
496 if (!strcmp (value, "single"))
497 x->overstrike_style = OVS_SINGLE;
498 else if (!strcmp (value, "line"))
499 x->overstrike_style = OVS_LINE;
501 msg (SE, _("Unknown overstrike style `%s'. Valid overstrike styles "
502 "are `single' and `line'."), value);
505 if (!strcmp (value, "bs"))
506 x->carriage_return_style = CRS_BS;
507 else if (!strcmp (value, "cr"))
508 x->carriage_return_style = CRS_CR;
510 msg (SE, _("Unknown carriage return style `%s'. Valid carriage "
511 "return styles are `cr' and `bs'."), value);
519 arg = strtol (value, &tail, 0);
520 if (arg < 1 || errno == ERANGE || *tail)
522 msg (SE, _("Positive integer required as value for `%s'."), key);
528 x->page_length = arg;
550 arg = strtol (value, &tail, 0);
551 if (arg < 0 || errno == ERANGE || *tail)
553 msg (SE, _("Zero or positive integer required as value for `%s'."),
560 x->left_margin = arg;
563 x->right_margin = arg;
569 x->bottom_margin = arg;
581 struct len_string *s;
585 s = &x->ops[OPS_INIT];
588 s = &x->ops[OPS_DONE];
591 s = &x->ops[OPS_FORMFEED];
594 s = &x->ops[OPS_NEWLINE];
600 ls_create (ascii_pool, s, value);
603 case font_string_arg:
605 if (!strcmp (value, "overstrike"))
607 ls_destroy (ascii_pool, &x->fonts[subcat]);
610 ls_create (ascii_pool, &x->fonts[subcat], value);
616 if (!strcmp (value, "on") || !strcmp (value, "true")
617 || !strcmp (value, "yes") || atoi (value))
619 else if (!strcmp (value, "off") || !strcmp (value, "false")
620 || !strcmp (value, "no") || !strcmp (value, "0"))
624 msg (SE, _("Boolean value expected for %s."), key);
630 x->headers = setting;
633 x->paginate = setting;
636 x->squeeze_blank_lines = setting;
649 postopen (struct file_ext *f)
651 struct ascii_driver_ext *x = f->param;
652 struct len_string *s = &x->ops[OPS_INIT];
654 if (!ls_empty_p (s) && fwrite (ls_value (s), ls_length (s), 1, f->file) < 1)
656 msg (ME, _("ASCII output driver: %s: %s"),
657 f->filename, strerror (errno));
664 preclose (struct file_ext *f)
666 struct ascii_driver_ext *x = f->param;
667 struct len_string *d = &x->ops[OPS_DONE];
669 if (!ls_empty_p (d) && fwrite (ls_value (d), ls_length (d), 1, f->file) < 1)
671 msg (ME, _("ASCII output driver: %s: %s"),
672 f->filename, strerror (errno));
679 ascii_open_page (struct outp_driver *this)
681 struct ascii_driver_ext *x = this->ext;
684 assert (this->driver_open && !this->page_open);
686 if (!fn_open_ext (&x->file))
688 msg (ME, _("ASCII output driver: %s: %s"), x->file.filename,
693 req_page_size = x->w * x->l;
694 if (req_page_size > x->page_size || req_page_size / 2 < x->page_size)
696 x->page_size = req_page_size;
697 x->page = xrealloc (x->page, sizeof *x->page * req_page_size);
700 if (x->l > x->line_len_size)
702 x->line_len_size = x->l;
703 x->line_len = xrealloc (x->line_len,
704 sizeof *x->line_len * x->line_len_size);
707 memset (x->line_len, 0, sizeof *x->line_len * x->l);
713 /* Ensures that at least the first L characters of line I in the
714 driver identified by struct ascii_driver_ext *X have been cleared out. */
716 expand_line (struct ascii_driver_ext *x, int i, int l)
718 int limit = i * x->w + l;
721 for (j = i * x->w + x->line_len[i]; j < limit; j++)
726 /* Puts line L at (H,K) in the current output page. Assumes
727 struct ascii_driver_ext named `ext'. */
728 #define draw_line(H, K, L) \
729 ext->page[ext->w * (K) + (H)] = (L) | 0x800
731 /* Line styles for each position. */
732 #define T(STYLE) (STYLE<<LNS_TOP)
733 #define L(STYLE) (STYLE<<LNS_LEFT)
734 #define B(STYLE) (STYLE<<LNS_BOTTOM)
735 #define R(STYLE) (STYLE<<LNS_RIGHT)
738 ascii_line_horz (struct outp_driver *this, const struct rect *r,
739 const struct color *c UNUSED, int style)
741 struct ascii_driver_ext *ext = this->ext;
742 int x1 = r->x1 / this->horiz;
743 int x2 = r->x2 / this->horiz;
744 int y1 = r->y1 / this->vert;
747 assert (this->driver_open && this->page_open);
752 || x1 < 0 || x1 >= ext->w
753 || x2 <= 0 || x2 > ext->w
754 || y1 < 0 || y1 >= ext->l)
756 #if !SUPPRESS_WARNINGS
757 printf (_("ascii_line_horz: bad hline (%d,%d),%d out of (%d,%d)\n"),
758 x1, x2, y1, ext->w, ext->l);
764 if (ext->line_len[y1] < x2)
765 expand_line (ext, y1, x2);
767 for (x = x1; x < x2; x++)
768 draw_line (x, y1, (style << LNS_LEFT) | (style << LNS_RIGHT));
772 ascii_line_vert (struct outp_driver *this, const struct rect *r,
773 const struct color *c UNUSED, int style)
775 struct ascii_driver_ext *ext = this->ext;
776 int x1 = r->x1 / this->horiz;
777 int y1 = r->y1 / this->vert;
778 int y2 = r->y2 / this->vert;
781 assert (this->driver_open && this->page_open);
786 || x1 < 0 || x1 >= ext->w
787 || y1 < 0 || y1 >= ext->l
788 || y2 < 0 || y2 > ext->l)
790 #if !SUPPRESS_WARNINGS
791 printf (_("ascii_line_vert: bad vline %d,(%d,%d) out of (%d,%d)\n"),
792 x1, y1, y2, ext->w, ext->l);
798 for (y = y1; y < y2; y++)
799 if (ext->line_len[y] <= x1)
800 expand_line (ext, y, x1 + 1);
802 for (y = y1; y < y2; y++)
803 draw_line (x1, y, (style << LNS_TOP) | (style << LNS_BOTTOM));
807 ascii_line_intersection (struct outp_driver *this, const struct rect *r,
808 const struct color *c UNUSED,
809 const struct outp_styles *style)
811 struct ascii_driver_ext *ext = this->ext;
812 int x = r->x1 / this->horiz;
813 int y = r->y1 / this->vert;
816 assert (this->driver_open && this->page_open);
818 if (x < 0 || x >= ext->w || y < 0 || y >= ext->l)
820 #if !SUPPRESS_WARNINGS
821 printf (_("ascii_line_intersection: bad intsct (%d,%d) out of (%d,%d)\n"),
822 x, y, ext->w, ext->l);
828 l = ((style->l << LNS_LEFT) | (style->r << LNS_RIGHT)
829 | (style->t << LNS_TOP) | (style->b << LNS_BOTTOM));
831 if (ext->line_len[y] <= x)
832 expand_line (ext, y, x + 1);
836 /* FIXME: Later we could set this up so that for certain devices it
839 ascii_box (struct outp_driver *this UNUSED, const struct rect *r UNUSED,
840 const struct color *bord UNUSED, const struct color *fill UNUSED)
842 assert (this->driver_open && this->page_open);
845 /* Polylines not supported. */
847 ascii_polyline_begin (struct outp_driver *this UNUSED, const struct color *c UNUSED)
849 assert (this->driver_open && this->page_open);
852 ascii_polyline_point (struct outp_driver *this UNUSED, int x UNUSED, int y UNUSED)
854 assert (this->driver_open && this->page_open);
857 ascii_polyline_end (struct outp_driver *this UNUSED)
859 assert (this->driver_open && this->page_open);
863 ascii_text_set_font_by_name (struct outp_driver * this, const char *s)
865 struct ascii_driver_ext *x = this->ext;
866 int len = strlen (s);
868 assert (this->driver_open && this->page_open);
869 x->cur_font = OUTP_F_R;
872 if (s[len - 1] == 'I')
874 if (len > 1 && s[len - 2] == 'B')
875 x->cur_font = OUTP_F_BI;
877 x->cur_font = OUTP_F_I;
879 else if (s[len - 1] == 'B')
880 x->cur_font = OUTP_F_B;
884 ascii_text_set_font_by_position (struct outp_driver *this, int pos)
886 struct ascii_driver_ext *x = this->ext;
887 assert (this->driver_open && this->page_open);
888 x->cur_font = pos >= 0 && pos < 4 ? pos : 0;
892 ascii_text_set_font_by_family (struct outp_driver *this UNUSED, const char *s UNUSED)
894 assert (this->driver_open && this->page_open);
898 ascii_text_get_font_name (struct outp_driver *this)
900 struct ascii_driver_ext *x = this->ext;
902 assert (this->driver_open && this->page_open);
920 ascii_text_get_font_family (struct outp_driver *this UNUSED)
922 assert (this->driver_open && this->page_open);
927 ascii_text_set_size (struct outp_driver *this, int size)
929 assert (this->driver_open && this->page_open);
930 return size == this->vert;
934 ascii_text_get_size (struct outp_driver *this, int *em_width)
936 assert (this->driver_open && this->page_open);
938 *em_width = this->horiz;
942 static void text_draw (struct outp_driver *this, struct outp_text *t);
944 /* Divides the text T->S into lines of width T->H. Sets T->V to the
945 number of lines necessary. Actually draws the text if DRAW is
948 You probably don't want to look at this code. */
950 delineate (struct outp_driver *this, struct outp_text *t, int draw)
952 /* Width we're fitting everything into. */
953 int width = t->h / this->horiz;
955 /* Maximum `y' position we can write to. */
958 /* Current position in string, character following end of string. */
959 const char *s = ls_value (&t->s);
960 const char *end = ls_end (&t->s);
962 /* Temporary struct outp_text to pass to low-level function. */
963 struct outp_text temp;
965 #if GLOBAL_DEBUGGING && 0
969 printf (_("%s: horiz=%d, vert=%d\n"), this->name, this->horiz, this->vert);
981 temp.options = t->options;
982 ls_shallow_copy (&temp.s, &t->s);
983 temp.h = t->h / this->horiz;
984 temp.x = t->x / this->horiz;
988 temp.y = t->y / this->vert;
990 if (t->options & OUTP_T_VERT)
991 max_y = (t->v / this->vert) + temp.y - 1;
995 while (end - s > width)
1000 /* Find first space before &s[width]. */
1006 if (!isspace ((unsigned char) space[-1]))
1015 s = space = &s[width];
1022 ls_init (&temp.s, beg, space - beg);
1023 temp.w = space - beg;
1024 text_draw (this, &temp);
1026 if (++temp.y > max_y)
1029 /* Find first nonspace after space. */
1030 while (s < end && isspace ((unsigned char) *s))
1037 ls_init (&temp.s, s, end - s);
1039 text_draw (this, &temp);
1044 t->v = (temp.y * this->vert) - t->y;
1048 ascii_text_metrics (struct outp_driver *this, struct outp_text *t)
1050 assert (this->driver_open && this->page_open);
1051 if (!(t->options & OUTP_T_HORZ))
1054 t->h = ls_length (&t->s) * this->horiz;
1057 delineate (this, t, 0);
1061 ascii_text_draw (struct outp_driver *this, struct outp_text *t)
1063 /* FIXME: orientations not supported. */
1064 assert (this->driver_open && this->page_open);
1065 if (!(t->options & OUTP_T_HORZ))
1067 struct outp_text temp;
1069 temp.options = t->options;
1071 temp.h = temp.v = 0;
1072 temp.x = t->x / this->horiz;
1073 temp.y = t->y / this->vert;
1074 text_draw (this, &temp);
1075 ascii_text_metrics (this, t);
1079 delineate (this, t, 1);
1083 text_draw (struct outp_driver *this, struct outp_text *t)
1085 struct ascii_driver_ext *ext = this->ext;
1086 unsigned attr = ext->cur_font << 8;
1089 int y = t->y * ext->w;
1091 char *s = ls_value (&t->s);
1093 /* Expand the line with the assumption that S takes up LEN character
1094 spaces (sometimes it takes up less). */
1097 assert (this->driver_open && this->page_open);
1098 switch (t->options & OUTP_T_JUST_MASK)
1100 case OUTP_T_JUST_LEFT:
1102 case OUTP_T_JUST_CENTER:
1103 x -= (t->h - t->w) / 2; /* fall through */
1104 case OUTP_T_JUST_RIGHT:
1111 if (!(t->y < ext->l && x < ext->w))
1113 min_len = min (x + ls_length (&t->s), ext->w);
1114 if (ext->line_len[t->y] < min_len)
1115 expand_line (ext, t->y, min_len);
1118 int len = ls_length (&t->s);
1120 if (len + x > ext->w)
1123 ext->page[y + x++] = *s++ | attr;
1127 /* ascii_close_page () and support routines. */
1129 #define LINE_BUF_SIZE 1024
1130 static unsigned char *line_buf;
1131 static unsigned char *line_p;
1134 commit_line_buf (struct outp_driver *this)
1136 struct ascii_driver_ext *x = this->ext;
1138 if ((int) fwrite (line_buf, 1, line_p - line_buf, x->file.file)
1139 < line_p - line_buf)
1141 msg (ME, _("Writing `%s': %s"), x->file.filename, strerror (errno));
1149 /* Writes everything from BP to EP exclusive into line_buf, or to
1150 THIS->output if line_buf overflows. */
1152 output_string (struct outp_driver *this, const char *bp, const char *ep)
1154 if (LINE_BUF_SIZE - (line_p - line_buf) >= ep - bp)
1156 memcpy (line_p, bp, ep - bp);
1162 if (LINE_BUF_SIZE - (line_p - line_buf) <= 1 && !commit_line_buf (this))
1168 /* Writes everything from BP to EP exclusive into line_buf, or to
1169 THIS->output if line_buf overflows. Returns 1 if additional passes
1170 over the line are required. FIXME: probably could do a lot of
1171 optimization here. */
1173 output_shorts (struct outp_driver *this,
1174 const unsigned short *bp, const unsigned short *ep)
1176 struct ascii_driver_ext *ext = this->ext;
1177 size_t remaining = LINE_BUF_SIZE - (line_p - line_buf);
1180 for (; bp < ep; bp++)
1184 struct len_string *box = &ext->box[*bp & 0xff];
1185 size_t len = ls_length (box);
1187 if (remaining >= len)
1189 memcpy (line_p, ls_value (box), len);
1195 if (!commit_line_buf (this))
1197 output_string (this, ls_value (box), ls_end (box));
1198 remaining = LINE_BUF_SIZE - (line_p - line_buf);
1201 else if (*bp & 0x0300)
1203 struct len_string *on;
1207 switch (*bp & 0x0300)
1210 on = &ext->fonts[FSTY_ON | FSTY_ITALIC];
1213 on = &ext->fonts[FSTY_ON | FSTY_BOLD];
1215 case OUTP_F_BI << 8:
1216 on = &ext->fonts[FSTY_ON | FSTY_BOLD_ITALIC];
1224 if (ext->overstrike_style == OVS_SINGLE)
1225 switch (*bp & 0x0300)
1239 case OUTP_F_BI << 8:
1262 output_string (this, buf, &buf[len]);
1271 if (!commit_line_buf (this))
1273 remaining = LINE_BUF_SIZE - (line_p - line_buf);
1281 /* Writes CH into line_buf N times, or to THIS->output if line_buf
1284 output_char (struct outp_driver *this, int n, int ch)
1286 if (LINE_BUF_SIZE - (line_p - line_buf) >= n)
1288 memset (line_p, ch, n);
1294 if (LINE_BUF_SIZE - (line_p - line_buf) <= 1 && !commit_line_buf (this))
1300 /* Advance the carriage from column 0 to the left margin. */
1302 advance_to_left_margin (struct outp_driver *this)
1304 struct ascii_driver_ext *ext = this->ext;
1307 margin = ext->left_margin;
1310 if (ext->tab_width && margin >= ext->tab_width)
1312 output_char (this, margin / ext->tab_width, '\t');
1313 margin %= ext->tab_width;
1316 output_char (this, margin, ' ');
1319 /* Move the output file carriage N_CHARS left, to the left margin. */
1321 return_carriage (struct outp_driver *this, int n_chars)
1323 struct ascii_driver_ext *ext = this->ext;
1325 switch (ext->carriage_return_style)
1328 output_char (this, n_chars, '\b');
1331 output_char (this, 1, '\r');
1332 advance_to_left_margin (this);
1340 /* Writes COUNT lines from the line buffer in THIS, starting at line
1343 output_lines (struct outp_driver *this, int first, int count)
1345 struct ascii_driver_ext *ext = this->ext;
1348 struct len_string *newline = &ext->ops[OPS_NEWLINE];
1353 if (NULL == ext->file.file)
1356 /* Iterate over all the lines to be output. */
1357 for (line_num = first; line_num < first + count; line_num++)
1359 unsigned short *p = &ext->page[ext->w * line_num];
1360 unsigned short *end_p = p + ext->line_len[line_num];
1361 unsigned short *bp, *ep;
1362 unsigned short attr = 0;
1364 assert (end_p >= p);
1366 /* Squeeze multiple blank lines into a single blank line if
1368 if (ext->squeeze_blank_lines
1370 && ext->line_len[line_num] == 0
1371 && ext->line_len[line_num - 1] == 0)
1374 /* Output every character in the line in the appropriate
1379 advance_to_left_margin (this);
1382 while (ep < end_p && attr == (*ep & 0x0300))
1384 if (output_shorts (this, bp, ep))
1392 /* Turn off old font. */
1393 if (attr != (OUTP_F_R << 8))
1395 struct len_string *off;
1400 off = &ext->fonts[FSTY_OFF | FSTY_ITALIC];
1403 off = &ext->fonts[FSTY_OFF | FSTY_BOLD];
1405 case OUTP_F_BI << 8:
1406 off = &ext->fonts[FSTY_OFF | FSTY_BOLD_ITALIC];
1413 output_string (this, ls_value (off), ls_end (off));
1416 /* Turn on new font. */
1417 attr = (*bp & 0x0300);
1418 if (attr != (OUTP_F_R << 8))
1420 struct len_string *on;
1425 on = &ext->fonts[FSTY_ON | FSTY_ITALIC];
1428 on = &ext->fonts[FSTY_ON | FSTY_BOLD];
1430 case OUTP_F_BI << 8:
1431 on = &ext->fonts[FSTY_ON | FSTY_BOLD_ITALIC];
1438 output_string (this, ls_value (on), ls_end (on));
1447 return_carriage (this, n_chars);
1452 while (ep < end_p && (*ep & 0x0300) == (OUTP_F_R << 8))
1456 output_char (this, ep - bp, ' ');
1458 switch (*ep & 0x0300)
1466 case OUTP_F_BI << 8:
1474 output_char (this, 1, ch);
1475 n_chars += ep - bp + 1;
1482 return_carriage (this, n_chars);
1486 while (ep < end_p && (*ep & 0x0300) != (OUTP_F_BI << 8))
1490 output_char (this, ep - bp, ' ');
1491 output_char (this, 1, '_');
1497 output_string (this, ls_value (newline), ls_end (newline));
1502 ascii_close_page (struct outp_driver *this)
1504 static unsigned char *s;
1507 struct ascii_driver_ext *x = this->ext;
1508 int nl_len, ff_len, total_len;
1512 assert (this->driver_open && this->page_open);
1515 line_buf = xmalloc (LINE_BUF_SIZE);
1518 nl_len = ls_length (&x->ops[OPS_NEWLINE]);
1521 total_len = x->top_margin * nl_len;
1522 if (s_len < total_len)
1525 s = xrealloc (s, s_len);
1527 for (cp = s, i = 0; i < x->top_margin; i++)
1529 memcpy (cp, ls_value (&x->ops[OPS_NEWLINE]), nl_len);
1532 output_string (this, s, &s[total_len]);
1538 total_len = nl_len + x->w;
1539 if (s_len < total_len + 1)
1541 s_len = total_len + 1;
1542 s = xrealloc (s, s_len);
1545 memset (s, ' ', x->w);
1550 snprintf (temp, 80, _("%s - Page %d"), curdate, x->page_number);
1551 memcpy (&s[x->w - strlen (temp)], temp, strlen (temp));
1554 if (outp_title && outp_subtitle)
1556 len = min ((int) strlen (outp_title), x->w);
1557 memcpy (s, outp_title, len);
1559 memcpy (&s[x->w], ls_value (&x->ops[OPS_NEWLINE]), nl_len);
1560 output_string (this, s, &s[total_len]);
1562 memset (s, ' ', x->w);
1563 len = strlen (version) + 3 + strlen (host_system);
1565 sprintf (&s[x->w - len], "%s - %s" , version, host_system);
1566 if (outp_subtitle || outp_title)
1568 char *string = outp_subtitle ? outp_subtitle : outp_title;
1569 len = min ((int) strlen (string), x->w);
1570 memcpy (s, string, len);
1572 memcpy (&s[x->w], ls_value (&x->ops[OPS_NEWLINE]), nl_len);
1573 output_string (this, s, &s[total_len]);
1574 output_string (this, &s[x->w], &s[total_len]);
1576 if (line_p != line_buf && !commit_line_buf (this))
1579 output_lines (this, x->n_output, x->l - x->n_output);
1581 ff_len = ls_length (&x->ops[OPS_FORMFEED]);
1582 total_len = x->bottom_margin * nl_len + ff_len;
1583 if (s_len < total_len)
1584 s = xrealloc (s, total_len);
1585 for (cp = s, i = 0; i < x->bottom_margin; i++)
1587 memcpy (cp, ls_value (&x->ops[OPS_NEWLINE]), nl_len);
1590 memcpy (cp, ls_value (&x->ops[OPS_FORMFEED]), ff_len);
1592 output_string (this, s, &s[total_len]);
1593 if (line_p != line_buf && !commit_line_buf (this))
1598 this->page_open = 0;
1602 struct outp_class ascii_class =
1612 ascii_preopen_driver,
1614 ascii_postopen_driver,
1624 ascii_line_intersection,
1627 ascii_polyline_begin,
1628 ascii_polyline_point,
1631 ascii_text_set_font_by_name,
1632 ascii_text_set_font_by_position,
1633 ascii_text_set_font_by_family,
1634 ascii_text_get_font_name,
1635 ascii_text_get_font_family,
1636 ascii_text_set_size,
1637 ascii_text_get_size,