X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Fascii.c;h=3113997e4893d515d73d59778e54b0b18562cde2;hb=f58d1b69c4bbd4072fca4e79ea1e6a527ab09fae;hp=899c2751b8efa5b0c6ee1dd19085df4de6c5d1da;hpb=af505f6ce81a0c3f4196117de5cf7f710ab156bf;p=pspp diff --git a/src/output/ascii.c b/src/output/ascii.c index 899c2751b8..3113997e48 100644 --- a/src/output/ascii.c +++ b/src/output/ascii.c @@ -19,14 +19,22 @@ #include #include #include +#include #include #include -#include #include #include #include #include +#ifdef HAVE_TERMIOS_H +# include +#endif + +#ifdef GWINSZ_IN_SYS_IOCTL +# include +#endif + #include "data/file-name.h" #include "data/file-handle-def.h" #include "data/settings.h" @@ -187,10 +195,15 @@ struct ascii_driver 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. */ @@ -209,6 +222,8 @@ 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 *); @@ -224,12 +239,6 @@ static void ascii_draw_cell (void *, const struct table_cell *, int color_idx, int spill[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2]); -#if HAVE_DECL_SIGWINCH -static struct ascii_driver *the_driver; - -static void winch_handler (int); -#endif - static struct ascii_driver * ascii_driver_cast (struct output_driver *driver) { @@ -262,7 +271,6 @@ 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; @@ -275,20 +283,21 @@ ascii_create (struct file_handle *fh, enum settings_output_devices device_type, 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 - const char *default_box = (!strcmp (fh_get_file_name (fh), "-") - && isatty (STDOUT_FILENO) - && (!strcmp (locale_charset (), "UTF-8") - || term_is_utf8_xterm ()) + 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, @@ -319,8 +328,6 @@ ascii_create (struct file_handle *fh, enum settings_output_devices device_type, a->params.line_widths[H][i] = width; a->params.line_widths[V][i] = width; } - for (int i = 0; i < TABLE_N_AXES; i++) - a->params.min_break[i] = a->min_break[i]; a->params.supports_margins = false; a->params.rtl = render_direction_rtl (); @@ -335,19 +342,6 @@ ascii_create (struct file_handle *fh, enum settings_output_devices device_type, goto error; } - 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); -#endif - a->auto_width = true; - } - return d; error: @@ -371,7 +365,7 @@ parse_page_size (struct driver_option *option) 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'"), @@ -389,28 +383,22 @@ parse_page_size (struct driver_option *option) static bool update_page_size (struct ascii_driver *a, bool issue_error) { - enum { MIN_WIDTH = 6, MIN_LENGTH = 6 }; - - if (a->auto_width) - { - a->params.size[H] = a->width = settings_get_viewwidth (); - a->params.min_break[H] = 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->params.size[H] = a->width = MIN_WIDTH; - return false; - } + 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 true; + return ok; } static void @@ -615,7 +603,8 @@ ascii_measure_cell_width (void *a_, const struct table_cell *cell, 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_footnotes || strchr (cell->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); @@ -730,7 +719,7 @@ text_draw (struct ascii_driver *a, enum table_halign halign, int options, int ofs; ofs = width = 0; - for (ofs = 0; ofs < n; ) + for (ofs = 0; ofs < n;) { ucs4_t uc; int mblen; @@ -809,10 +798,14 @@ text_draw (struct ascii_driver *a, enum table_halign halign, int options, } static char * -add_footnote_markers (const char *text, const struct table_cell *cell) +add_markers (const char *text, const struct table_cell *cell) { 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); @@ -831,11 +824,11 @@ ascii_layout_cell (struct ascii_driver *a, const struct table_cell *cell, ? output_get_text_from_markup (cell->text) : cell->text); - /* Append footnote markers if any. */ + /* Append footnotes, subscripts, superscript if any. */ const char *text; - if (cell->n_footnotes) + if (cell->n_footnotes || cell->n_subscripts || cell->superscript) { - text = add_footnote_markers (plain_text, cell); + text = add_markers (plain_text, cell); if (plain_text != cell->text) free (CONST_CAST (char *, plain_text)); } @@ -871,7 +864,7 @@ ascii_layout_cell (struct ascii_driver *a, const struct table_cell *cell, size_t graph_ofs; size_t ofs; - for (ofs = 0; ofs < n; ) + for (ofs = 0; ofs < n;) { ucs4_t uc; int mblen; @@ -983,7 +976,7 @@ ascii_test_flush (struct output_driver *driver) { 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); @@ -991,10 +984,50 @@ ascii_test_flush (struct output_driver *driver) } } +static sig_atomic_t terminal_changed = true; +static int terminal_width; + #if HAVE_DECL_SIGWINCH static void winch_handler (int signum UNUSED) { - update_page_size (the_driver, false); + terminal_changed = true; } #endif + +int +get_terminal_width (void) +{ +#if HAVE_DECL_SIGWINCH + 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 + + 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 + { + if (getenv ("COLUMNS")) + terminal_width = atoi (getenv ("COLUMNS")); + } + + if (terminal_width <= 0 || terminal_width > 1024) + terminal_width = 79; + } + + return terminal_width; +}