/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2007, 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2007, 2009, 2010, 2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
+#include <unilbrk.h>
+#include <unistr.h>
+#include <uniwidth.h>
#include "data/file-name.h"
#include "data/settings.h"
#include "libpspp/start-date.h"
#include "libpspp/string-map.h"
#include "libpspp/version.h"
+#include "output/ascii.h"
#include "output/cairo.h"
#include "output/chart-item-provider.h"
#include "output/driver-provider.h"
#define H TABLE_HORZ
#define V TABLE_VERT
-/* Line styles bit shifts. */
-enum
+#define N_BOX (RENDER_N_LINES * RENDER_N_LINES \
+ * RENDER_N_LINES * RENDER_N_LINES)
+
+static const ucs4_t ascii_box_chars[N_BOX] =
{
- LNS_TOP = 0,
- LNS_LEFT = 2,
- LNS_BOTTOM = 4,
- LNS_RIGHT = 6,
+ ' ', '|', '#',
+ '-', '+', '#',
+ '=', '#', '#',
+ '|', '|', '#',
+ '+', '+', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ '-', '+', '#',
+ '-', '+', '#',
+ '#', '#', '#',
+ '+', '+', '#',
+ '+', '+', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ '=', '#', '#',
+ '#', '#', '#',
+ '=', '#', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ '#', '#', '#',
+ };
- LNS_COUNT = 256
+static const ucs4_t unicode_box_chars[N_BOX] =
+ {
+ 0x0020, 0x2575, 0x2551,
+ 0x2574, 0x256f, 0x255c,
+ 0x2550, 0x255b, 0x255d,
+ 0x2577, 0x2502, 0x2551,
+ 0x256e, 0x2524, 0x2562,
+ 0x2555, 0x2561, 0x2563,
+ 0x2551, 0x2551, 0x2551,
+ 0x2556, 0x2562, 0x2562,
+ 0x2557, 0x2563, 0x2563,
+ 0x2576, 0x2570, 0x2559,
+ 0x2500, 0x2534, 0x2568,
+ 0x2550, 0x2567, 0x2569,
+ 0x256d, 0x251c, 0x255f,
+ 0x252c, 0x253c, 0x256a,
+ 0x2564, 0x256a, 0x256c,
+ 0x2553, 0x255f, 0x255f,
+ 0x2565, 0x256b, 0x256b,
+ 0x2566, 0x256c, 0x256c,
+ 0x2550, 0x2558, 0x255a,
+ 0x2550, 0x2567, 0x2569,
+ 0x2550, 0x2567, 0x2569,
+ 0x2552, 0x255e, 0x2560,
+ 0x2564, 0x256a, 0x256c,
+ 0x2564, 0x256a, 0x256c,
+ 0x2554, 0x2560, 0x2560,
+ 0x2566, 0x256c, 0x256c,
};
static inline int
make_box_index (int left, int right, int top, int bottom)
{
- return ((left << LNS_LEFT) | (right << LNS_RIGHT)
- | (top << LNS_TOP) | (bottom << LNS_BOTTOM));
+ return ((right * 3 + bottom) * 3 + left) * 3 + top;
}
-/* Character attributes. */
-#define ATTR_EMPHASIS 0x100 /* Bold-face. */
-#define ATTR_BOX 0x200 /* Line drawing character. */
-
/* A line of text. */
struct ascii_line
{
- unsigned short *chars; /* Characters and attributes. */
- int n_chars; /* Length. */
- int allocated_chars; /* Allocated "chars" elements. */
+ struct string s; /* Content, in UTF-8. */
+ size_t width; /* Display width, in character positions. */
};
/* How to emphasize text. */
int top_margin; /* Top margin in lines. */
int bottom_margin; /* Bottom margin in lines. */
- char *box[LNS_COUNT]; /* Line & box drawing characters. */
- char *init; /* Device initialization string. */
+ const ucs4_t *box; /* Line & box drawing characters. */
/* Internal state. */
char *command_name;
static int vertical_margins (const struct ascii_driver *);
-static const char *get_default_box (int right, int bottom, int left, int top);
static bool update_page_size (struct ascii_driver *, bool issue_error);
static int parse_page_size (struct driver_option *);
ascii_create (const char *file_name, enum settings_output_devices device_type,
struct string_map *o)
{
+ enum { BOX_ASCII, BOX_UNICODE } box;
struct output_driver *d;
struct ascii_driver *a;
int paper_length;
- int right, bottom, left, top;
a = xzalloc (sizeof *a);
d = &a->driver;
a->auto_length = paper_length < 0;
a->length = paper_length - vertical_margins (a);
- for (right = 0; right < 4; right++)
- for (bottom = 0; bottom < 4; bottom++)
- for (left = 0; left < 4; left++)
- for (top = 0; top < 4; top++)
- {
- int indx = make_box_index (left, right, top, bottom);
- const char *default_value;
- char name[16];
-
- sprintf (name, "box[%d%d%d%d]", right, bottom, left, top);
- default_value = get_default_box (right, bottom, left, top);
- a->box[indx] = parse_string (opt (d, o, name, default_value));
- }
- a->init = parse_string (opt (d, o, "init", ""));
+ box = parse_enum (opt (d, o, "box", "ascii"),
+ "ascii", BOX_ASCII,
+ "unicode", BOX_UNICODE,
+ NULL_SENTINEL);
+ a->box = box == BOX_ASCII ? ascii_box_chars : unicode_box_chars;
a->command_name = NULL;
a->title = xstrdup ("");
return NULL;
}
-static const char *
-get_default_box (int right, int bottom, int left, int top)
-{
- switch ((top << 12) | (left << 8) | (bottom << 4) | (right << 0))
- {
- case 0x0000:
- return " ";
-
- case 0x0100: case 0x0101: case 0x0001:
- return "-";
-
- case 0x1000: case 0x1010: case 0x0010:
- return "|";
-
- case 0x0300: case 0x0303: case 0x0003:
- case 0x0200: case 0x0202: case 0x0002:
- return "=";
-
- default:
- return left > 1 || top > 1 || right > 1 || bottom > 1 ? "#" : "+";
- }
-}
-
static int
parse_page_size (struct driver_option *option)
{
free (a->subtitle);
free (a->file_name);
free (a->chart_file_name);
- for (i = 0; i < LNS_COUNT; i++)
- free (a->box[i]);
- free (a->init);
for (i = 0; i < a->allocated_lines; i++)
- free (a->lines[i].chars);
+ ds_destroy (&a->lines[i].s);
free (a->lines);
free (a);
}
ascii_flush,
};
\f
-static void ascii_expand_line (struct ascii_driver *, int y, int length);
+static char *ascii_reserve (struct ascii_driver *, int y, int x0, int x1,
+ int n);
static void ascii_layout_cell (struct ascii_driver *,
const struct table_cell *,
int bb[TABLE_N_AXES][2],
enum render_line_style styles[TABLE_N_AXES][2])
{
struct ascii_driver *a = a_;
- unsigned short int value;
- int x1, y1;
+ char mbchar[6];
+ int x0, x1, y1;
+ ucs4_t uc;
+ int mblen;
int x, y;
/* Clip to the page. */
if (bb[H][0] >= a->width || bb[V][0] + a->y >= a->length)
return;
+ x0 = bb[H][0];
x1 = MIN (bb[H][1], a->width);
y1 = MIN (bb[V][1] + a->y, a->length);
/* Draw. */
- value = ATTR_BOX | make_box_index (styles[V][0], styles[V][1],
- styles[H][0], styles[H][1]);
+ uc = a->box[make_box_index (styles[V][0], styles[V][1],
+ styles[H][0], styles[H][1])];
+ mblen = u8_uctomb (CHAR_CAST (uint8_t *, mbchar), uc, 6);
for (y = bb[V][0] + a->y; y < y1; y++)
{
- ascii_expand_line (a, y, x1);
- for (x = bb[H][0]; x < x1; x++)
- a->lines[y].chars[x] = value;
+ char *p = ascii_reserve (a, y, x0, x1, mblen * (x1 - x0));
+ for (x = x0; x < x1; x++)
+ {
+ memcpy (p, mbchar, mblen);
+ p += mblen;
+ }
}
}
ascii_layout_cell (a, cell, bb, clip, &w, &h);
}
-/* Ensures that at least the first LENGTH characters of line Y in
- ascii driver A have been cleared out. */
+static int
+u8_mb_to_display (int *wp, const uint8_t *s, size_t n)
+{
+ size_t ofs;
+ ucs4_t uc;
+ int w;
+
+ ofs = u8_mbtouc (&uc, s, n);
+ if (ofs < n && s[ofs] == '\b')
+ {
+ ofs++;
+ ofs += u8_mbtouc (&uc, s + ofs, n - ofs);
+ }
+
+ w = uc_width (uc, "UTF-8");
+ if (w <= 0)
+ {
+ *wp = 0;
+ return ofs;
+ }
+
+ while (ofs < n)
+ {
+ int mblen = u8_mbtouc (&uc, s + ofs, n - ofs);
+ if (uc_width (uc, "UTF-8") > 0)
+ break;
+ ofs += mblen;
+ }
+
+ *wp = w;
+ return ofs;
+}
+
+struct ascii_pos
+ {
+ int x0;
+ int x1;
+ size_t ofs0;
+ size_t ofs1;
+ };
+
static void
-ascii_expand_line (struct ascii_driver *a, int y, int length)
+find_ascii_pos (struct ascii_line *line, int target_x, struct ascii_pos *c)
+{
+ const uint8_t *s = CHAR_CAST (const uint8_t *, ds_cstr (&line->s));
+ size_t length = ds_length (&line->s);
+ size_t ofs;
+ int mblen;
+ int x;
+
+ x = 0;
+ for (ofs = 0; ; ofs += mblen)
+ {
+ int w;
+
+ mblen = u8_mb_to_display (&w, s + ofs, length - ofs);
+ if (x + w > target_x)
+ {
+ c->x0 = x;
+ c->x1 = x + w;
+ c->ofs0 = ofs;
+ c->ofs1 = ofs + mblen;
+ return;
+ }
+ x += w;
+ }
+}
+
+static char *
+ascii_reserve (struct ascii_driver *a, int y, int x0, int x1, int n)
{
struct ascii_line *line = &a->lines[y];
- if (line->n_chars < length)
+
+ if (x0 >= line->width)
+ {
+ /* The common case: adding new characters at the end of a line. */
+ ds_put_byte_multiple (&line->s, ' ', x0 - line->width);
+ line->width = x1;
+ return ds_put_uninit (&line->s, n);
+ }
+ else if (x0 == x1)
+ return NULL;
+ else
{
- int x;
- if (line->allocated_chars < length)
+ /* An unusual case: overwriting characters in the middle of a line. We
+ don't keep any kind of mapping from bytes to display positions, so we
+ have to iterate over the whole line starting from the beginning. */
+ struct ascii_pos p0, p1;
+ char *s;
+
+ /* Find the positions of the first and last character. We must find the
+ both characters' positions before changing the line, because that
+ would prevent finding the other character's position. */
+ find_ascii_pos (line, x0, &p0);
+ if (x1 < line->width)
+ find_ascii_pos (line, x1, &p1);
+
+ /* If a double-width character occupies both x0 - 1 and x0, then replace
+ its first character width by '?'. */
+ s = ds_data (&line->s);
+ while (p0.x0 < x0)
+ {
+ s[p0.ofs0++] = '?';
+ p0.x0++;
+ }
+
+ if (x1 >= line->width)
{
- line->allocated_chars = MAX (length, MIN (length * 2, a->width));
- line->chars = xnrealloc (line->chars, line->allocated_chars,
- sizeof *line->chars);
+ ds_truncate (&line->s, p0.ofs0);
+ line->width = x1;
+ return ds_put_uninit (&line->s, n);
}
- for (x = line->n_chars; x < length; x++)
- line->chars[x] = ' ';
- line->n_chars = length;
+
+ /* If a double-width character occupies both x1 - 1 and x1, then we need
+ to replace its second character width by '?'. */
+ if (p1.x0 < x1)
+ {
+ do
+ {
+ s[--p1.ofs1] = '?';
+ p1.x0++;
+ }
+ while (p1.x0 < x1);
+ return ds_splice_uninit (&line->s, p0.ofs0, p1.ofs1 - p0.ofs0, n);
+ }
+
+ return ds_splice_uninit (&line->s, p0.ofs0, p1.ofs0 - p0.ofs0, n);
}
}
static void
-text_draw (struct ascii_driver *a, const struct table_cell *cell,
+text_draw (struct ascii_driver *a, unsigned int options,
int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
- int y, const char *string, int n)
+ int y, const uint8_t *string, int n, size_t width)
{
int x0 = MAX (0, clip[H][0]);
int y0 = MAX (0, clip[V][0] + a->y);
if (y < y0 || y >= y1)
return;
- switch (cell->options & TAB_ALIGNMENT)
+ switch (options & TAB_ALIGNMENT)
{
case TAB_LEFT:
x = bb[H][0];
break;
case TAB_CENTER:
- x = (bb[H][0] + bb[H][1] - n + 1) / 2;
+ x = (bb[H][0] + bb[H][1] - width + 1) / 2;
break;
case TAB_RIGHT:
- x = bb[H][1] - n;
+ x = bb[H][1] - width;
break;
default:
NOT_REACHED ();
}
+ if (x >= x1)
+ return;
+
+ while (x < x0)
+ {
+ ucs4_t uc;
+ int mblen;
+ int w;
+
+ if (n == 0)
+ return;
+ mblen = u8_mbtouc (&uc, string, n);
+
+ string += mblen;
+ n -= mblen;
+
+ w = uc_width (uc, "UTF-8");
+ if (w > 0)
+ {
+ x += w;
+ width -= w;
+ }
+ }
+ if (n == 0)
+ return;
- if (x0 > x)
+ if (x + width > x1)
{
- n -= x0 - x;
- if (n <= 0)
+ int ofs;
+
+ ofs = width = 0;
+ for (ofs = 0; ofs < n; )
+ {
+ ucs4_t uc;
+ int mblen;
+ int w;
+
+ mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
+
+ w = uc_width (uc, "UTF-8");
+ if (w > 0)
+ {
+ if (width + w > x1 - x)
+ break;
+ width += w;
+ }
+ ofs += mblen;
+ }
+ n = ofs;
+ if (n == 0)
return;
- string += x0 - x;
- x = x0;
}
- if (x + n >= x1)
- n = x1 - x;
- if (n > 0)
+ if (!(options & TAB_EMPH) || a->emphasis == EMPH_NONE)
+ memcpy (ascii_reserve (a, y, x, x + width, n), string, n);
+ else
{
- int attr = cell->options & TAB_EMPH ? ATTR_EMPHASIS : 0;
- size_t i;
+ size_t n_out;
+ size_t ofs;
+ char *out;
+ int mblen;
+
+ /* First figure out how many bytes need to be inserted. */
+ n_out = n;
+ for (ofs = 0; ofs < n; ofs += mblen)
+ {
+ ucs4_t uc;
+ int w;
+
+ mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
+ w = uc_width (uc, "UTF-8");
+
+ if (w > 0)
+ n_out += a->emphasis == EMPH_UNDERLINE ? 2 : 1 + mblen;
+ }
- ascii_expand_line (a, y, x + n);
- for (i = 0; i < n; i++)
- a->lines[y].chars[x + i] = string[i] | attr;
+ /* Then insert them. */
+ out = ascii_reserve (a, y, x, x + width, n_out);
+ for (ofs = 0; ofs < n; ofs += mblen)
+ {
+ ucs4_t uc;
+ int w;
+
+ mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
+ w = uc_width (uc, "UTF-8");
+
+ if (w > 0)
+ {
+ if (a->emphasis == EMPH_UNDERLINE)
+ *out++ = '_';
+ else
+ out = mempcpy (out, string + ofs, mblen);
+ *out++ = '\b';
+ }
+ out = mempcpy (out, string + ofs, mblen);
+ }
}
}
static void
ascii_layout_cell (struct ascii_driver *a, const struct table_cell *cell,
int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
- int *width, int *height)
+ int *widthp, int *heightp)
{
- size_t length = strlen (cell->contents);
- int y, pos;
+ const char *text = cell->contents;
+ size_t length = strlen (text);
+ char *breaks;
+ int bb_width;
+ size_t pos;
+ int y;
+
+ *widthp = 0;
+ *heightp = 0;
+ if (length == 0)
+ return;
+
+ text = cell->contents;
+ breaks = xmalloc (length + 1);
+ u8_possible_linebreaks (CHAR_CAST (const uint8_t *, text), length,
+ "UTF-8", breaks);
+ breaks[length] = (breaks[length - 1] == UC_BREAK_MANDATORY
+ ? UC_BREAK_PROHIBITED : UC_BREAK_POSSIBLE);
- *width = 0;
pos = 0;
+ bb_width = bb[H][1] - bb[H][0];
for (y = bb[V][0]; y < bb[V][1] && pos < length; y++)
{
- const char *line = &cell->contents[pos];
- const char *new_line;
- size_t line_len;
-
- /* Find line length without considering word wrap. */
- line_len = MIN (bb[H][1] - bb[H][0], length - pos);
- new_line = memchr (line, '\n', line_len);
- if (new_line != NULL)
- line_len = new_line - line;
-
- /* Word wrap. */
- if (pos + line_len < length)
+ const uint8_t *line = CHAR_CAST (const uint8_t *, text + pos);
+ const char *b = breaks + pos;
+ size_t n = length - pos;
+
+ size_t last_break_ofs = 0;
+ int last_break_width = 0;
+ int width = 0;
+ size_t ofs;
+
+ for (ofs = 0; ofs < n; )
{
- size_t space_len = line_len;
- while (space_len > 0 && !isspace ((unsigned char) line[space_len]))
- space_len--;
- if (space_len > 0)
- line_len = space_len;
- else
+ ucs4_t uc;
+ int mblen;
+ int w;
+
+ mblen = u8_mbtouc (&uc, line + ofs, n - ofs);
+ if (b[ofs] == UC_BREAK_MANDATORY)
+ break;
+ else if (b[ofs] == UC_BREAK_POSSIBLE)
+ {
+ last_break_ofs = ofs;
+ last_break_width = width;
+ }
+
+ w = uc_width (uc, "UTF-8");
+ if (w > 0)
+ {
+ if (width + w > bb_width)
+ {
+ if (isspace (line[ofs]))
+ break;
+ else if (last_break_ofs != 0)
+ {
+ ofs = last_break_ofs;
+ width = last_break_width;
+ break;
+ }
+ }
+ width += w;
+ }
+ ofs += mblen;
+ }
+ if (b[ofs] != UC_BREAK_MANDATORY)
+ {
+ while (ofs > 0 && isspace (line[ofs - 1]))
{
- while (pos + line_len < length
- && !isspace ((unsigned char) line[line_len]))
- line_len++;
+ ofs--;
+ width--;
}
}
- if (line_len > *width)
- *width = line_len;
+ if (width > *widthp)
+ *widthp = width;
/* Draw text. */
- text_draw (a, cell, bb, clip, y, line, line_len);
+ text_draw (a, cell->options, bb, clip, y, line, ofs, width);
/* Next line. */
- pos += line_len;
- if (pos < length && isspace ((unsigned char) cell->contents[pos]))
+ pos += ofs;
+ if (ofs < n && isspace (line[ofs]))
pos++;
+
}
- *height = y - bb[V][0];
+ *heightp = y - bb[V][0];
+
+ free (breaks);
+}
+
+void
+ascii_test_write (struct output_driver *driver,
+ const char *s, int x, int y, unsigned int options)
+{
+ struct ascii_driver *a = ascii_driver_cast (driver);
+ struct table_cell cell;
+ int bb[TABLE_N_AXES][2];
+ int width, height;
+
+ if (a->file == NULL && !ascii_open_page (a))
+ return;
+ a->y = 0;
+
+ memset (&cell, 0, sizeof cell);
+ cell.contents = s;
+ cell.options = options | TAB_LEFT;
+
+ bb[TABLE_HORZ][0] = x;
+ bb[TABLE_HORZ][1] = a->width;
+ bb[TABLE_VERT][0] = y;
+ bb[TABLE_VERT][1] = a->length;
+
+ ascii_layout_cell (a, &cell, bb, bb, &width, &height);
+
+ a->y = 1;
}
\f
/* ascii_close_page () and support routines. */
-
#if HAVE_DECL_SIGWINCH
static struct ascii_driver *the_driver;
sigaction (SIGWINCH, &action, NULL);
}
#endif
- if (a->init != NULL)
- fputs (a->init, a->file);
}
else
{
for (i = a->allocated_lines; i < a->length; i++)
{
struct ascii_line *line = &a->lines[i];
- line->chars = NULL;
- line->allocated_chars = 0;
+ ds_init_empty (&line->s);
+ line->width = 0;
}
a->allocated_lines = a->length;
}
for (i = 0; i < a->length; i++)
- a->lines[i].n_chars = 0;
-
- return true;
-}
-
-/* Writes LINE to A's output file. */
-static void
-output_line (struct ascii_driver *a, const struct ascii_line *line)
-{
- size_t length;
- size_t i;
-
- length = line->n_chars;
- while (length > 0 && line->chars[length - 1] == ' ')
- length--;
-
- for (i = 0; i < length; i++)
{
- int attribute = line->chars[i] & (ATTR_BOX | ATTR_EMPHASIS);
- int ch = line->chars[i] & ~(ATTR_BOX | ATTR_EMPHASIS);
-
- switch (attribute)
- {
- case ATTR_BOX:
- fputs (a->box[ch], a->file);
- break;
-
- case ATTR_EMPHASIS:
- if (a->emphasis == EMPH_BOLD)
- fprintf (a->file, "%c\b%c", ch, ch);
- else if (a->emphasis == EMPH_UNDERLINE)
- fprintf (a->file, "_\b%c", ch);
- else
- putc (ch, a->file);
- break;
-
- default:
- putc (ch, a->file);
- break;
- }
+ struct ascii_line *line = &a->lines[i];
+ ds_clear (&line->s);
+ line->width = 0;
}
- putc ('\n', a->file);
+ return true;
}
static void
{
struct ascii_line *line = &a->lines[y];
- if (a->squeeze_blank_lines && y > 0 && line->n_chars == 0)
+ if (a->squeeze_blank_lines && y > 0 && line->width == 0)
any_blank = true;
else
{
any_blank = false;
}
- output_line (a, line);
+ while (ds_chomp_byte (&line->s, ' '))
+ continue;
+ fwrite (ds_data (&line->s), 1, ds_length (&line->s), a->file);
+ putc ('\n', a->file);
}
}
if (!a->squeeze_blank_lines)
projects / pspp-builds.git / blobdiff