#include <ctype.h>
#include <errno.h>
#include <limits.h>
+#include <signal.h>
#include <stdint.h>
#include <stdlib.h>
-#include <signal.h>
#include <unilbrk.h>
#include <unistd.h>
#include <unistr.h>
#include <uniwidth.h>
+#ifdef HAVE_TERMIOS_H
+# include <termios.h>
+#endif
+
+#ifdef GWINSZ_IN_SYS_IOCTL
+# include <sys/ioctl.h>
+#endif
+
#include "data/file-name.h"
#include "data/file-handle-def.h"
#include "data/settings.h"
#include "output/message-item.h"
#include "output/options.h"
#include "output/render.h"
-#include "output/tab.h"
#include "output/table-item.h"
#include "output/text-item.h"
#ifdef HAVE_CAIRO
/* Colours for charts */
- struct xr_color fg;
- struct xr_color bg;
+ struct cell_color fg;
+ struct cell_color bg;
#endif
+ /* How the page width is determined: */
+ enum {
+ FIXED_WIDTH, /* Specified by configuration. */
+ VIEW_WIDTH, /* From SET WIDTH. */
+ TERMINAL_WIDTH /* From the terminal's width. */
+ } width_mode;
int width; /* Page width. */
- bool auto_width; /* Use viewwidth as page width? */
- int min_break[TABLE_N_AXES]; /* Min cell size to break across pages. */
+ int min_hbreak; /* Min cell size to break across pages. */
const ucs4_t *box; /* Line & box drawing characters. */
struct u8_line *lines; /* Page content. */
int allocated_lines; /* Number of lines allocated. */
int chart_cnt; /* Number of charts so far. */
+ int object_cnt; /* Number of objects so far. */
+ struct render_params params;
};
static const struct output_driver_class ascii_driver_class;
static void ascii_submit (struct output_driver *, const struct output_item *);
+static int get_terminal_width (void);
+
static bool update_page_size (struct ascii_driver *, bool issue_error);
static int parse_page_size (struct driver_option *);
-static bool ascii_open_page (struct ascii_driver *);
-
static void ascii_draw_line (void *, int bb[TABLE_N_AXES][2],
enum render_line_style styles[TABLE_N_AXES][2],
struct cell_color colors[TABLE_N_AXES][2]);
return driver_option_get (d, options, key, default_value);
}
+/* Return true iff the terminal appears to be an xterm with
+ UTF-8 capabilities */
+static bool
+term_is_utf8_xterm (void)
+{
+ const char *term = getenv ("TERM");
+ const char *xterm_locale = getenv ("XTERM_LOCAL");
+ return (term && xterm_locale
+ && !strcmp (term, "xterm")
+ && (strcasestr (xterm_locale, "utf8")
+ || strcasestr (xterm_locale, "utf-8")));
+}
+
static struct output_driver *
ascii_create (struct file_handle *fh, enum settings_output_devices device_type,
struct string_map *o)
{
enum { BOX_ASCII, BOX_UNICODE } box;
- int min_break[TABLE_N_AXES];
struct output_driver *d;
struct ascii_driver *a;
a->chart_file_name = parse_chart_file_name (opt (d, o, "charts", fh_get_file_name (fh)));
a->handle = fh;
- min_break[H] = parse_int (opt (d, o, "min-hbreak", "-1"), -1, INT_MAX);
- a->width = parse_page_size (opt (d, o, "width", "79"));
- a->auto_width = a->width < 0;
- a->min_break[H] = min_break[H] >= 0 ? min_break[H] : a->width / 2;
+ bool terminal = !strcmp (fh_get_file_name (fh), "-") && isatty (1);
+ a->width = parse_page_size (opt (d, o, "width", "-1"));
+ a->width_mode = (a->width > 0 ? FIXED_WIDTH
+ : terminal ? TERMINAL_WIDTH
+ : VIEW_WIDTH);
+ a->min_hbreak = parse_int (opt (d, o, "min-hbreak", "-1"), -1, INT_MAX);
+
#ifdef HAVE_CAIRO
parse_color (d, o, "background-color", "#FFFFFFFFFFFF", &a->bg);
parse_color (d, o, "foreground-color", "#000000000000", &a->fg);
#endif
- box = parse_enum (opt (d, o, "box", "ascii"),
+
+ const char *default_box = (terminal && (!strcmp (locale_charset (), "UTF-8")
+ || term_is_utf8_xterm ())
+ ? "unicode" : "ascii");
+ box = parse_enum (opt (d, o, "box", default_box),
"ascii", BOX_ASCII,
"unicode", BOX_UNICODE,
NULL_SENTINEL);
a->error = false;
a->lines = NULL;
a->allocated_lines = 0;
- a->chart_cnt = 1;
+ a->chart_cnt = 0;
+ a->object_cnt = 0;
+
+ a->params.draw_line = ascii_draw_line;
+ a->params.measure_cell_width = ascii_measure_cell_width;
+ a->params.measure_cell_height = ascii_measure_cell_height;
+ a->params.adjust_break = NULL;
+ a->params.draw_cell = ascii_draw_cell;
+ a->params.aux = a;
+ a->params.size[H] = a->width;
+ a->params.size[V] = INT_MAX;
+ a->params.font_size[H] = 1;
+ a->params.font_size[V] = 1;
+ for (int i = 0; i < RENDER_N_LINES; i++)
+ {
+ int width = i == RENDER_LINE_NONE ? 0 : 1;
+ a->params.line_widths[H][i] = width;
+ a->params.line_widths[V][i] = width;
+ }
+ a->params.supports_margins = false;
+ a->params.rtl = render_direction_rtl ();
if (!update_page_size (a, true))
goto error;
+ a->file = fn_open (a->handle, a->append ? "a" : "w");
+ if (!a->file)
+ {
+ msg_error (errno, _("ascii: opening output file `%s'"),
+ fh_get_file_name (a->handle));
+ goto error;
+ }
+
return d;
error:
errno = 0;
value = strtol (option->value, &tail, 0);
- if (dim >= 1 && errno != ERANGE && *tail == '\0')
+ if (value >= 1 && errno != ERANGE && *tail == '\0')
dim = value;
else
msg (MW, _("%s: %s must be positive integer or `auto'"),
static bool
update_page_size (struct ascii_driver *a, bool issue_error)
{
- enum { MIN_WIDTH = 6, MIN_LENGTH = 6 };
-
- if (a->auto_width)
- {
- a->width = settings_get_viewwidth ();
- a->min_break[H] = a->width / 2;
- }
-
- if (a->width < MIN_WIDTH)
- {
- if (issue_error)
- msg (ME,
- _("ascii: page must be at least %d characters wide, but "
- "as configured is only %d characters"),
- MIN_WIDTH,
- a->width);
- if (a->width < MIN_WIDTH)
- a->width = MIN_WIDTH;
- return false;
- }
-
- return true;
+ enum { MIN_WIDTH = 6 };
+
+ int want_width = (a->width_mode == VIEW_WIDTH ? settings_get_viewwidth ()
+ : a->width_mode == TERMINAL_WIDTH ? get_terminal_width ()
+ : a->width);
+ bool ok = want_width >= MIN_WIDTH;
+ if (!ok && issue_error)
+ msg (ME, _("ascii: page must be at least %d characters wide, but "
+ "as configured is only %d characters"),
+ MIN_WIDTH, want_width);
+
+ a->width = ok ? want_width : MIN_WIDTH;
+ a->params.size[H] = a->width;
+ a->params.min_break[H] = a->min_hbreak >= 0 ? a->min_hbreak : a->width / 2;
+
+ return ok;
}
static void
{
for (size_t y = 0; y < n_lines; y++)
{
- struct u8_line *line = &a->lines[y];
+ if (y < a->allocated_lines)
+ {
+ struct u8_line *line = &a->lines[y];
- while (ds_chomp_byte (&line->s, ' '))
- continue;
- fwrite (ds_data (&line->s), 1, ds_length (&line->s), a->file);
+ while (ds_chomp_byte (&line->s, ' '))
+ continue;
+ fwrite (ds_data (&line->s), 1, ds_length (&line->s), a->file);
+ u8_line_clear (&a->lines[y]);
+ }
putc ('\n', a->file);
-
- u8_line_clear (&a->lines[y]);
}
}
ascii_output_table_item (struct ascii_driver *a,
const struct table_item *table_item)
{
- struct render_params params;
struct render_pager *p;
- int i;
update_page_size (a, false);
- params.draw_line = ascii_draw_line;
- params.measure_cell_width = ascii_measure_cell_width;
- params.measure_cell_height = ascii_measure_cell_height;
- params.adjust_break = NULL;
- params.draw_cell = ascii_draw_cell;
- params.aux = a;
- params.size[H] = a->width;
- params.size[V] = INT_MAX;
- params.font_size[H] = 1;
- params.font_size[V] = 1;
- for (i = 0; i < RENDER_N_LINES; i++)
- {
- int width = i == RENDER_LINE_NONE ? 0 : 1;
- params.line_widths[H][i] = width;
- params.line_widths[V][i] = width;
- }
- for (i = 0; i < TABLE_N_AXES; i++)
- params.min_break[i] = a->min_break[i];
- params.supports_margins = false;
-
- if (a->file)
+ if (a->object_cnt++)
putc ('\n', a->file);
- else if (!ascii_open_page (a))
- return;
- p = render_pager_create (¶ms, table_item);
+ p = render_pager_create (&a->params, table_item);
for (int i = 0; render_pager_has_next (p); i++)
{
if (i)
}
static void
-ascii_output_text (struct ascii_driver *a, const char *text)
+ascii_output_table_item_unref (struct ascii_driver *a,
+ struct table_item *table_item)
{
- struct table_item *table_item;
-
- table_item = table_item_create (table_from_string (TAB_LEFT, text),
- NULL, NULL);
ascii_output_table_item (a, table_item);
table_item_unref (table_item);
}
+static void
+ascii_output_text (struct ascii_driver *a, const char *text)
+{
+ ascii_output_table_item_unref (
+ a, table_item_create (table_from_string (text), NULL, NULL));
+}
+
static void
ascii_submit (struct output_driver *driver,
const struct output_item *output_item)
char *file_name;
file_name = xr_draw_png_chart (chart_item, a->chart_file_name,
- a->chart_cnt++,
+ ++a->chart_cnt,
&a->fg,
&a->bg);
if (file_name != NULL)
struct text_item *text_item;
text_item = text_item_create_format (
- TEXT_ITEM_PARAGRAPH, _("See %s for a chart."), file_name);
+ TEXT_ITEM_LOG, _("See %s for a chart."), file_name);
ascii_submit (driver, &text_item->output_item);
text_item_unref (text_item);
{
const struct text_item *text_item = to_text_item (output_item);
enum text_item_type type = text_item_get_type (text_item);
- const char *text = text_item_get_text (text_item);
-
- switch (type)
- {
- case TEXT_ITEM_TITLE:
- case TEXT_ITEM_SUBTITLE:
- case TEXT_ITEM_COMMAND_OPEN:
- case TEXT_ITEM_COMMAND_CLOSE:
- break;
- case TEXT_ITEM_BLANK_LINE:
- break;
-
- case TEXT_ITEM_EJECT_PAGE:
- break;
-
- default:
- ascii_output_text (a, text);
- break;
- }
+ if (type != TEXT_ITEM_PAGE_TITLE && type != TEXT_ITEM_EJECT_PAGE)
+ ascii_output_table_item_unref (
+ a, text_item_to_table_item (text_item_ref (text_item)));
}
else if (is_message_item (output_item))
{
const struct message_item *message_item = to_message_item (output_item);
- const struct msg *msg = message_item_get_msg (message_item);
- char *s = msg_to_string (msg, message_item->command_name);
+ char *s = msg_to_string (message_item_get_msg (message_item));
ascii_output_text (a, s);
free (s);
}
clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
ascii_layout_cell (a, cell, bb, clip, max_width, &h);
- if (cell->n_contents != 1
- || cell->contents[0].n_footnotes
- || strchr (cell->contents[0].text, ' '))
+ if (cell->n_footnotes || strchr (cell->text, ' ')
+ || cell->n_subscripts || cell->superscript)
{
bb[H][1] = 1;
ascii_layout_cell (a, cell, bb, clip, min_width, &h);
}
static void
-text_draw (struct ascii_driver *a, unsigned int options,
+text_draw (struct ascii_driver *a, enum table_halign halign, int options,
bool bold, bool underline,
int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
int y, const uint8_t *string, int n, size_t width)
if (y < y0 || y >= y1)
return;
- switch (options & TAB_HALIGN)
+ switch (table_halign_interpret (halign, options & TAB_NUMERIC))
{
- case TAB_LEFT:
+ case TABLE_HALIGN_LEFT:
x = bb[H][0];
break;
- case TAB_CENTER:
+ case TABLE_HALIGN_CENTER:
x = (bb[H][0] + bb[H][1] - width + 1) / 2;
break;
- case TAB_RIGHT:
+ case TABLE_HALIGN_RIGHT:
+ case TABLE_HALIGN_DECIMAL:
x = bb[H][1] - width;
break;
default:
int ofs;
ofs = width = 0;
- for (ofs = 0; ofs < n; )
+ for (ofs = 0; ofs < n;)
{
ucs4_t uc;
int mblen;
}
}
-static int
-ascii_layout_cell_text (struct ascii_driver *a,
- const struct cell_contents *contents,
- bool bold, bool underline,
- int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
- int *widthp)
+static char *
+add_markers (const char *text, const struct table_cell *cell)
{
- size_t length;
- const char *text;
- char *breaks;
- int bb_width;
- size_t pos;
- int y;
-
- y = bb[V][0];
- length = strlen (contents->text);
- if (contents->n_footnotes)
- {
- struct string s;
- int i;
+ struct string s = DS_EMPTY_INITIALIZER;
+ ds_put_cstr (&s, text);
+ for (size_t i = 0; i < cell->n_subscripts; i++)
+ ds_put_format (&s, "%c%s", i ? ',' : '_', cell->subscripts[i]);
+ if (cell->superscript)
+ ds_put_format (&s, "^%s", cell->superscript);
+ for (size_t i = 0; i < cell->n_footnotes; i++)
+ ds_put_format (&s, "[%s]", cell->footnotes[i]->marker);
+ return ds_steal_cstr (&s);
+}
- ds_init_empty (&s);
- ds_extend (&s, length + contents->n_footnotes * 4);
- ds_put_cstr (&s, contents->text);
- for (i = 0; i < contents->n_footnotes; i++)
- ds_put_format (&s, "[%s]", contents->footnotes[i]->marker);
+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 *widthp, int *heightp)
+{
+ *widthp = 0;
+ *heightp = 0;
+
+ /* Get the basic textual contents. */
+ const char *plain_text = (cell->options & TAB_MARKUP
+ ? output_get_text_from_markup (cell->text)
+ : cell->text);
- length = ds_length (&s);
- text = ds_steal_cstr (&s);
+ /* Append footnotes, subscripts, superscript if any. */
+ const char *text;
+ if (cell->n_footnotes || cell->n_subscripts || cell->superscript)
+ {
+ text = add_markers (plain_text, cell);
+ if (plain_text != cell->text)
+ free (CONST_CAST (char *, plain_text));
}
else
+ text = plain_text;
+
+ /* Calculate length; if it's zero, then there's nothing to do. */
+ size_t length = strlen (text);
+ if (!length)
{
- if (length == 0)
- return y;
- text = contents->text;
+ if (text != cell->text)
+ free (CONST_CAST (char *, text));
+ return;
}
- breaks = xmalloc (length + 1);
+ char *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);
- pos = 0;
- bb_width = bb[H][1] - bb[H][0];
- for (y = bb[V][0]; y < bb[V][1] && pos < length; y++)
+ size_t pos = 0;
+ int bb_width = bb[H][1] - bb[H][0];
+ for (int y = bb[V][0]; y < bb[V][1] && pos < length; y++)
{
const uint8_t *line = CHAR_CAST (const uint8_t *, text + pos);
const char *b = breaks + pos;
size_t graph_ofs;
size_t ofs;
- for (ofs = 0; ofs < n; )
+ for (ofs = 0; ofs < n;)
{
ucs4_t uc;
int mblen;
width -= ofs - graph_ofs;
/* Draw text. */
- text_draw (a, contents->options, bold, underline,
+ text_draw (a, cell->style->cell_style.halign, cell->options,
+ cell->style->font_style.bold,
+ cell->style->font_style.underline,
bb, clip, y, line, graph_ofs, width);
/* If a new-line ended the line, just skip the new-line. Otherwise, skip
if (width > *widthp)
*widthp = width;
+ ++*heightp;
pos += ofs;
}
free (breaks);
- if (text != contents->text)
+ if (text != cell->text)
free (CONST_CAST (char *, text));
-
- return y;
-}
-
-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 *widthp, int *heightp)
-{
- int bb[TABLE_N_AXES][2];
- size_t i;
-
- *widthp = 0;
- *heightp = 0;
-
- memcpy (bb, bb_, sizeof bb);
- for (i = 0; i < cell->n_contents && bb[V][0] < bb[V][1]; i++)
- {
- const struct cell_contents *contents = &cell->contents[i];
-
- /* Put a blank line between contents. */
- if (i > 0)
- {
- bb[V][0]++;
- if (bb[V][0] >= bb[V][1])
- break;
- }
-
- bb[V][0] = ascii_layout_cell_text (a, contents, cell->style->bold,
- cell->style->underline,
- bb, clip, widthp);
- }
- *heightp = bb[V][0] - bb_[V][0];
}
void
int bb[TABLE_N_AXES][2];
int width, height;
- if (a->file == NULL && !ascii_open_page (a))
+ if (!a->file)
return;
- struct cell_contents contents = {
- .options = TAB_LEFT,
- .text = CONST_CAST (char *, s),
- };
- struct cell_style cell_style = {
- .bold = bold,
- .underline = underline,
+ struct area_style style = {
+ .cell_style.halign = TABLE_HALIGN_LEFT,
+ .font_style.bold = bold,
+ .font_style.underline = underline,
};
struct table_cell cell = {
- .contents = &contents,
- .n_contents = 1,
- .style = &cell_style,
+ .text = CONST_CAST (char *, s),
+ .style = &style,
};
bb[TABLE_HORZ][0] = x;
{
struct ascii_driver *a = ascii_driver_cast (driver);
- if (a->file == NULL && !ascii_open_page (a))
+ if (!a->file)
return;
if (y < 0)
{
struct ascii_driver *a = ascii_driver_cast (driver);
- for (size_t i = a->allocated_lines; i-- > 0; )
+ for (size_t i = a->allocated_lines; i-- > 0;)
if (a->lines[i].width)
{
ascii_output_lines (a, i + 1);
}
}
\f
-/* ascii_close_page () and support routines. */
+static sig_atomic_t terminal_changed = true;
+static int terminal_width;
#if HAVE_DECL_SIGWINCH
-static struct ascii_driver *the_driver;
-
static void
winch_handler (int signum UNUSED)
{
- update_page_size (the_driver, false);
+ terminal_changed = true;
}
#endif
-static bool
-ascii_open_page (struct ascii_driver *a)
+int
+get_terminal_width (void)
{
- if (a->error)
- return false;
-
- if (a->file == NULL)
- {
- a->file = fn_open (a->handle, a->append ? "a" : "w");
- if (a->file != NULL)
- {
- if ( isatty (fileno (a->file)))
- {
#if HAVE_DECL_SIGWINCH
- struct sigaction action;
- sigemptyset (&action.sa_mask);
- action.sa_flags = 0;
- action.sa_handler = winch_handler;
- the_driver = a;
- sigaction (SIGWINCH, &action, NULL);
+ static bool setup_signal;
+ if (!setup_signal)
+ {
+ setup_signal = true;
+
+ struct sigaction action = { .sa_handler = winch_handler };
+ sigemptyset (&action.sa_mask);
+ sigaction (SIGWINCH, &action, NULL);
+ }
#endif
- a->auto_width = true;
- }
- }
+
+ if (terminal_changed)
+ {
+ terminal_changed = false;
+
+#ifdef HAVE_TERMIOS_H
+ struct winsize ws;
+ if (!ioctl (0, TIOCGWINSZ, &ws))
+ terminal_width = ws.ws_col;
else
+#endif
{
- msg_error (errno, _("ascii: opening output file `%s'"),
- fh_get_file_name (a->handle));
- a->error = true;
- return false;
+ if (getenv ("COLUMNS"))
+ terminal_width = atoi (getenv ("COLUMNS"));
}
+
+ if (terminal_width <= 0 || terminal_width > 1024)
+ terminal_width = 79;
}
- return true;
+ return terminal_width;
}