X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Fascii.c;h=b5c9c004b9eb2460b4fb6666ed256a0ee26f12f3;hb=f8659933d48c5682010d1e1f04ae7acb5cbcd611;hp=756235c5cbf6cae7183e19d4a287ff6566840c7a;hpb=b745220f07d9ea7d4196318a79835563bbcbad6f;p=pspp diff --git a/src/output/ascii.c b/src/output/ascii.c index 756235c5cb..b5c9c004b9 100644 --- a/src/output/ascii.c +++ b/src/output/ascii.c @@ -1,5 +1,5 @@ /* PSPP - a program for statistical analysis. - Copyright (C) 1997-9, 2000, 2007, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. + Copyright (C) 1997-9, 2000, 2007, 2009, 2010, 2011, 2012, 2013, 2014 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 @@ -19,15 +19,24 @@ #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" #include "libpspp/assertion.h" #include "libpspp/cast.h" @@ -38,19 +47,23 @@ #include "libpspp/u8-line.h" #include "libpspp/version.h" #include "output/ascii.h" -#include "output/cairo.h" +#ifdef HAVE_CAIRO +#include "output/cairo-chart.h" +#endif #include "output/chart-item-provider.h" #include "output/driver-provider.h" +#include "output/image-item.h" #include "output/message-item.h" #include "output/options.h" +#include "output/pivot-output.h" +#include "output/pivot-table.h" #include "output/render.h" -#include "output/tab.h" #include "output/table-item.h" #include "output/text-item.h" -#include "gl/error.h" #include "gl/minmax.h" #include "gl/xalloc.h" +#include "gl/xsize.h" #include "gettext.h" #define _(msgid) gettext (msgid) @@ -59,84 +72,220 @@ #define H TABLE_HORZ #define V TABLE_VERT -#define N_BOX (RENDER_N_LINES * RENDER_N_LINES \ - * RENDER_N_LINES * RENDER_N_LINES) - -static const ucs4_t ascii_box_chars[N_BOX] = +enum { - ' ', '|', '#', - '-', '+', '#', - '=', '#', '#', - '|', '|', '#', - '+', '+', '#', - '#', '#', '#', - '#', '#', '#', - '#', '#', '#', - '#', '#', '#', - '-', '+', '#', - '-', '+', '#', - '#', '#', '#', - '+', '+', '#', - '+', '+', '#', - '#', '#', '#', - '#', '#', '#', - '#', '#', '#', - '#', '#', '#', - '=', '#', '#', - '#', '#', '#', - '=', '#', '#', - '#', '#', '#', - '#', '#', '#', - '#', '#', '#', - '#', '#', '#', - '#', '#', '#', - '#', '#', '#', + ASCII_LINE_NONE, + ASCII_LINE_DASHED, + ASCII_LINE_SINGLE, + ASCII_LINE_DOUBLE, + ASCII_N_LINES }; -static const ucs4_t unicode_box_chars[N_BOX] = +struct box_chars { - 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, + ucs4_t c[ASCII_N_LINES][ASCII_N_LINES][ASCII_N_LINES][ASCII_N_LINES]; }; -static inline int -make_box_index (int left, int right, int top, int bottom) +static const struct box_chars * +get_ascii_box (void) { - return ((right * 3 + bottom) * 3 + left) * 3 + top; + enum { + _ = ASCII_LINE_NONE, + d = ASCII_LINE_DASHED, + S = ASCII_LINE_SINGLE, + D = ASCII_LINE_DOUBLE, + }; + + static const struct box_chars ascii_box = + { + /* r b l t: _ d S D */ + .c[_][_][_] = { ' ', '|', '|', '#', }, + .c[_][_][d] = { '-', '+', '+', '#', }, + .c[_][_][S] = { '-', '+', '+', '#', }, + .c[_][_][D] = { '=', '#', '#', '#', }, + .c[_][d][_] = { '|', '|', '|', '#', }, + .c[_][d][d] = { '+', '+', '+', '#', }, + .c[_][d][S] = { '+', '+', '+', '#', }, + .c[_][d][D] = { '#', '#', '#', '#', }, + .c[_][S][_] = { '|', '|', '|', '#', }, + .c[_][S][d] = { '+', '+', '+', '#', }, + .c[_][S][S] = { '+', '+', '+', '#', }, + .c[_][S][D] = { '#', '#', '#', '#', }, + .c[_][D][_] = { '#', '#', '#', '#', }, + .c[_][D][d] = { '#', '#', '#', '#', }, + .c[_][D][S] = { '#', '#', '#', '#', }, + .c[_][D][D] = { '#', '#', '#', '#', }, + .c[d][_][_] = { '-', '+', '+', '#', }, + .c[d][_][d] = { '-', '+', '+', '#', }, + .c[d][_][S] = { '-', '+', '+', '#', }, + .c[d][_][D] = { '#', '#', '#', '#', }, + .c[d][d][_] = { '+', '+', '+', '#', }, + .c[d][d][d] = { '+', '+', '+', '#', }, + .c[d][d][S] = { '+', '+', '+', '#', }, + .c[d][d][D] = { '#', '#', '#', '#', }, + .c[d][S][_] = { '+', '+', '+', '#', }, + .c[d][S][d] = { '+', '+', '+', '#', }, + .c[d][S][S] = { '+', '+', '+', '#', }, + .c[d][S][D] = { '#', '#', '#', '#', }, + .c[d][D][_] = { '#', '#', '#', '#', }, + .c[d][D][d] = { '#', '#', '#', '#', }, + .c[d][D][S] = { '#', '#', '#', '#', }, + .c[d][D][D] = { '#', '#', '#', '#', }, + .c[S][_][_] = { '-', '+', '+', '#', }, + .c[S][_][d] = { '-', '+', '+', '#', }, + .c[S][_][S] = { '-', '+', '+', '#', }, + .c[S][_][D] = { '#', '#', '#', '#', }, + .c[S][d][_] = { '+', '+', '+', '#', }, + .c[S][d][d] = { '+', '+', '+', '#', }, + .c[S][d][S] = { '+', '+', '+', '#', }, + .c[S][d][D] = { '#', '#', '#', '#', }, + .c[S][S][_] = { '+', '+', '+', '#', }, + .c[S][S][d] = { '+', '+', '+', '#', }, + .c[S][S][S] = { '+', '+', '+', '#', }, + .c[S][S][D] = { '#', '#', '#', '#', }, + .c[S][D][_] = { '#', '#', '#', '#', }, + .c[S][D][d] = { '#', '#', '#', '#', }, + .c[S][D][S] = { '#', '#', '#', '#', }, + .c[S][D][D] = { '#', '#', '#', '#', }, + .c[D][_][_] = { '=', '#', '#', '#', }, + .c[D][_][d] = { '#', '#', '#', '#', }, + .c[D][_][S] = { '#', '#', '#', '#', }, + .c[D][_][D] = { '=', '#', '#', '#', }, + .c[D][d][_] = { '#', '#', '#', '#', }, + .c[D][d][d] = { '#', '#', '#', '#', }, + .c[D][d][S] = { '#', '#', '#', '#', }, + .c[D][d][D] = { '#', '#', '#', '#', }, + .c[D][S][_] = { '#', '#', '#', '#', }, + .c[D][S][d] = { '#', '#', '#', '#', }, + .c[D][S][S] = { '#', '#', '#', '#', }, + .c[D][S][D] = { '#', '#', '#', '#', }, + .c[D][D][_] = { '#', '#', '#', '#', }, + .c[D][D][d] = { '#', '#', '#', '#', }, + .c[D][D][S] = { '#', '#', '#', '#', }, + .c[D][D][D] = { '#', '#', '#', '#', }, + }; + return &ascii_box; } -/* How to emphasize text. */ -enum emphasis_style - { - EMPH_BOLD, /* Overstrike for bold. */ - EMPH_UNDERLINE, /* Overstrike for underlining. */ - EMPH_NONE /* No emphasis. */ +static const struct box_chars * +get_unicode_box (void) +{ + enum { + _ = ASCII_LINE_NONE, + d = ASCII_LINE_DASHED, + S = ASCII_LINE_SINGLE, + D = ASCII_LINE_DOUBLE, }; + static const struct box_chars unicode_box = + { + /* r b l t: _ d S D */ + .c[_][_][_] = { 0x0020, 0x2575, 0x2575, 0x2551, }, /* ╵╵║ */ + .c[_][_][d] = { 0x2574, 0x256f, 0x256f, 0x255c, }, /* ╴╯╯╜ */ + .c[_][_][S] = { 0x2574, 0x256f, 0x256f, 0x255c, }, /* ╴╯╯╜ */ + .c[_][_][D] = { 0x2550, 0x255b, 0x255b, 0x255d, }, /* ═╛╛╝ */ + .c[_][S][_] = { 0x2577, 0x2502, 0x2502, 0x2551, }, /* ╷││║ */ + .c[_][S][d] = { 0x256e, 0x2524, 0x2524, 0x2562, }, /* ╮┤┤╢ */ + .c[_][S][S] = { 0x256e, 0x2524, 0x2524, 0x2562, }, /* ╮┤┤╢ */ + .c[_][S][D] = { 0x2555, 0x2561, 0x2561, 0x2563, }, /* ╕╡╡╣ */ + .c[_][d][_] = { 0x2577, 0x250a, 0x2502, 0x2551, }, /* ╷┊│║ */ + .c[_][d][d] = { 0x256e, 0x2524, 0x2524, 0x2562, }, /* ╮┤┤╢ */ + .c[_][d][S] = { 0x256e, 0x2524, 0x2524, 0x2562, }, /* ╮┤┤╢ */ + .c[_][d][D] = { 0x2555, 0x2561, 0x2561, 0x2563, }, /* ╕╡╡╣ */ + .c[_][D][_] = { 0x2551, 0x2551, 0x2551, 0x2551, }, /* ║║║║ */ + .c[_][D][d] = { 0x2556, 0x2562, 0x2562, 0x2562, }, /* ╖╢╢╢ */ + .c[_][D][S] = { 0x2556, 0x2562, 0x2562, 0x2562, }, /* ╖╢╢╢ */ + .c[_][D][D] = { 0x2557, 0x2563, 0x2563, 0x2563, }, /* ╗╣╣╣ */ + .c[d][_][_] = { 0x2576, 0x2570, 0x2570, 0x2559, }, /* ╶╰╰╙ */ + .c[d][_][d] = { 0x254c, 0x2534, 0x2534, 0x2568, }, /* ╌┴┴╨ */ + .c[d][_][S] = { 0x2500, 0x2534, 0x2534, 0x2568, }, /* ─┴┴╨ */ + .c[d][_][D] = { 0x2550, 0x2567, 0x2567, 0x2569, }, /* ═╧╧╩ */ + .c[d][d][_] = { 0x256d, 0x251c, 0x251c, 0x255f, }, /* ╭├├╟ */ + .c[d][d][d] = { 0x252c, 0x002b, 0x253c, 0x256a, }, /* ┬+┼╪ */ + .c[d][d][S] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */ + .c[d][d][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */ + .c[d][S][_] = { 0x256d, 0x251c, 0x251c, 0x255f, }, /* ╭├├╟ */ + .c[d][S][d] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */ + .c[d][S][S] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */ + .c[d][S][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */ + .c[d][D][_] = { 0x2553, 0x255f, 0x255f, 0x255f, }, /* ╓╟╟╟ */ + .c[d][D][d] = { 0x2565, 0x256b, 0x256b, 0x256b, }, /* ╥╫╫╫ */ + .c[d][D][S] = { 0x2565, 0x256b, 0x256b, 0x256b, }, /* ╥╫╫╫ */ + .c[d][D][D] = { 0x2566, 0x256c, 0x256c, 0x256c, }, /* ╦╬╬╬ */ + .c[S][_][_] = { 0x2576, 0x2570, 0x2570, 0x2559, }, /* ╶╰╰╙ */ + .c[S][_][d] = { 0x2500, 0x2534, 0x2534, 0x2568, }, /* ─┴┴╨ */ + .c[S][_][S] = { 0x2500, 0x2534, 0x2534, 0x2568, }, /* ─┴┴╨ */ + .c[S][_][D] = { 0x2550, 0x2567, 0x2567, 0x2569, }, /* ═╧╧╩ */ + .c[S][d][_] = { 0x256d, 0x251c, 0x251c, 0x255f, }, /* ╭├├╟ */ + .c[S][d][d] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */ + .c[S][d][S] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */ + .c[S][d][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */ + .c[S][S][_] = { 0x256d, 0x251c, 0x251c, 0x255f, }, /* ╭├├╟ */ + .c[S][S][d] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */ + .c[S][S][S] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */ + .c[S][S][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */ + .c[S][D][_] = { 0x2553, 0x255f, 0x255f, 0x255f, }, /* ╓╟╟╟ */ + .c[S][D][d] = { 0x2565, 0x256b, 0x256b, 0x256b, }, /* ╥╫╫╫ */ + .c[S][D][S] = { 0x2565, 0x256b, 0x256b, 0x256b, }, /* ╥╫╫╫ */ + .c[S][D][D] = { 0x2566, 0x256c, 0x256c, 0x256c, }, /* ╦╬╬╬ */ + .c[D][_][_] = { 0x2550, 0x2558, 0x2558, 0x255a, }, /* ═╘╘╚ */ + .c[D][_][d] = { 0x2550, 0x2567, 0x2567, 0x2569, }, /* ═╧╧╩ */ + .c[D][_][S] = { 0x2550, 0x2567, 0x2567, 0x2569, }, /* ═╧╧╩ */ + .c[D][_][D] = { 0x2550, 0x2567, 0x2567, 0x2569, }, /* ═╧╧╩ */ + .c[D][d][_] = { 0x2552, 0x255e, 0x255e, 0x2560, }, /* ╒╞╞╠ */ + .c[D][d][d] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */ + .c[D][d][S] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */ + .c[D][d][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */ + .c[D][S][_] = { 0x2552, 0x255e, 0x255e, 0x2560, }, /* ╒╞╞╠ */ + .c[D][S][d] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */ + .c[D][S][S] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */ + .c[D][S][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */ + .c[D][D][_] = { 0x2554, 0x2560, 0x2560, 0x2560, }, /* ╔╠╠╠ */ + .c[D][D][d] = { 0x2560, 0x256c, 0x256c, 0x256c, }, /* ╠╬╬╬ */ + .c[D][D][S] = { 0x2560, 0x256c, 0x256c, 0x256c, }, /* ╠╬╬╬ */ + .c[D][D][D] = { 0x2566, 0x256c, 0x256c, 0x256c, }, /* ╦╬╬╬ */ + }; + return &unicode_box; +} + +static int +ascii_line_from_render_line (int render_line) +{ + switch (render_line) + { + case RENDER_LINE_NONE: + return ASCII_LINE_NONE; + + case RENDER_LINE_DASHED: + return ASCII_LINE_DASHED; + + case RENDER_LINE_SINGLE: + case RENDER_LINE_THICK: + case RENDER_LINE_THIN: + return ASCII_LINE_SINGLE; + + case RENDER_LINE_DOUBLE: + return ASCII_LINE_DOUBLE; + + default: + return ASCII_LINE_NONE; + } + +} + +static ucs4_t +box_get (const struct box_chars *box, + int left_, int right_, int top_, int bottom_) +{ + bool rtl = render_direction_rtl (); + int left = ascii_line_from_render_line (rtl ? right_ : left_); + int right = ascii_line_from_render_line (rtl ? left_ : right_); + int top = ascii_line_from_render_line (top_); + int bottom = ascii_line_from_render_line (bottom_); + + return box->c[right][bottom][left][top]; +} + /* ASCII output driver. */ struct ascii_driver { @@ -144,72 +293,60 @@ struct ascii_driver /* User parameters. */ bool append; /* Append if output file already exists? */ - bool headers; /* Print headers at top of page? */ - bool paginate; /* Insert formfeeds? */ - bool squeeze_blank_lines; /* Squeeze multiple blank lines into one? */ - enum emphasis_style emphasis; /* How to emphasize text. */ + bool emphasis; /* Enable bold and underline in output? */ char *chart_file_name; /* Name of files used for charts. */ +#ifdef HAVE_CAIRO + /* Colours for charts */ + 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. */ - int length; /* Page length minus margins and header. */ - bool auto_width; /* Use viewwidth as page width? */ - bool auto_length; /* Use viewlength as page width? */ - int top_margin; /* Top margin in lines. */ - int bottom_margin; /* Bottom margin in lines. */ + int min_hbreak; /* Min cell size to break across pages. */ - const ucs4_t *box; /* Line & box drawing characters. */ + const struct box_chars *box; /* Line & box drawing characters. */ /* Internal state. */ - char *command_name; - char *title; - char *subtitle; - char *file_name; /* Output file name. */ + struct file_handle *handle; FILE *file; /* Output file. */ bool error; /* Output error? */ - int page_number; /* Current page number. */ struct u8_line *lines; /* Page content. */ int allocated_lines; /* Number of lines allocated. */ int chart_cnt; /* Number of charts so far. */ - int y; + int object_cnt; /* Number of objects so far. */ + const struct pivot_table *pt; + 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 vertical_margins (const struct ascii_driver *); +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 void ascii_close_page (struct ascii_driver *); -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]); + enum render_line_style styles[TABLE_N_AXES][2], + struct cell_color colors[TABLE_N_AXES][2]); static void ascii_measure_cell_width (void *, const struct table_cell *, int *min, int *max); static int ascii_measure_cell_height (void *, const struct table_cell *, int width); -static void ascii_draw_cell (void *, const struct table_cell *, - int bb[TABLE_N_AXES][2], +static void ascii_draw_cell (void *, const struct table_cell *, int color_idx, + int bb[TABLE_N_AXES][2], int valign_offset, + int spill[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2]); -static void -reallocate_lines (struct ascii_driver *a) -{ - if (a->length > a->allocated_lines) - { - int i; - a->lines = xnrealloc (a->lines, a->length, sizeof *a->lines); - for (i = a->allocated_lines; i < a->length; i++) - u8_line_init (&a->lines[i]); - a->allocated_lines = a->length; - } -} - - static struct ascii_driver * ascii_driver_cast (struct output_driver *driver) { @@ -224,59 +361,103 @@ opt (struct output_driver *d, struct string_map *options, const char *key, 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 (const char *file_name, enum settings_output_devices device_type, +ascii_create (struct file_handle *fh, 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; a = xzalloc (sizeof *a); d = &a->driver; - output_driver_init (&a->driver, &ascii_driver_class, file_name, device_type); + output_driver_init (&a->driver, &ascii_driver_class, fh_get_file_name (fh), device_type); a->append = parse_boolean (opt (d, o, "append", "false")); - a->headers = parse_boolean (opt (d, o, "headers", "false")); - a->paginate = parse_boolean (opt (d, o, "paginate", "false")); - a->squeeze_blank_lines = parse_boolean (opt (d, o, "squeeze", "true")); - a->emphasis = parse_enum (opt (d, o, "emphasis", "none"), - "bold", EMPH_BOLD, - "underline", EMPH_UNDERLINE, - "none", EMPH_NONE, - NULL_SENTINEL); - - a->chart_file_name = parse_chart_file_name (opt (d, o, "charts", file_name)); - - a->top_margin = parse_int (opt (d, o, "top-margin", "0"), 0, INT_MAX); - a->bottom_margin = parse_int (opt (d, o, "bottom-margin", "0"), 0, INT_MAX); - - a->width = parse_page_size (opt (d, o, "width", "79")); - paper_length = parse_page_size (opt (d, o, "length", "66")); - a->auto_width = a->width < 0; - a->auto_length = paper_length < 0; - a->length = paper_length - vertical_margins (a); - - box = parse_enum (opt (d, o, "box", "ascii"), + a->emphasis = parse_boolean (opt (d, o, "emphasis", "false")); + + a->chart_file_name = parse_chart_file_name (opt (d, o, "charts", fh_get_file_name (fh))); + a->handle = fh; + + + 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 + a->bg = parse_color (opt (d, o, "background-color", "#FFFFFFFFFFFF")); + a->fg = parse_color (opt (d, o, "foreground-color", "#000000000000")); +#endif + + 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->box = box == BOX_ASCII ? ascii_box_chars : unicode_box_chars; + a->box = box == BOX_ASCII ? get_ascii_box () : get_unicode_box (); - a->command_name = NULL; - a->title = xstrdup (""); - a->subtitle = xstrdup (""); - a->file_name = xstrdup (file_name); a->file = NULL; a->error = false; - a->page_number = 0; a->lines = NULL; a->allocated_lines = 0; - a->chart_cnt = 1; + a->chart_cnt = 0; + a->object_cnt = 0; + + static const struct render_ops ascii_render_ops = { + .draw_line = ascii_draw_line, + .measure_cell_width = ascii_measure_cell_width, + .measure_cell_height = ascii_measure_cell_height, + .adjust_break = NULL, + .draw_cell = ascii_draw_cell, + }; + a->params.ops = &ascii_render_ops; + 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; + + static const int ascii_line_widths[RENDER_N_LINES] = { + [RENDER_LINE_NONE] = 0, + [RENDER_LINE_SINGLE] = 1, + [RENDER_LINE_DASHED] = 1, + [RENDER_LINE_THICK] = 1, + [RENDER_LINE_THIN] = 1, + [RENDER_LINE_DOUBLE] = 1, + }; + a->params.line_widths = ascii_line_widths; + a->params.supports_margins = false; + a->params.rtl = render_direction_rtl (); + a->params.printing = true; 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: @@ -300,10 +481,10 @@ 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 - error (0, 0, _("%s: %s must be positive integer or `auto'"), + msg (MW, _("%s: %s must be positive integer or `auto'"), option->driver_name, option->name); } } @@ -313,44 +494,27 @@ parse_page_size (struct driver_option *option) return dim; } -static int -vertical_margins (const struct ascii_driver *a) -{ - return a->top_margin + a->bottom_margin + (a->headers ? 3 : 0); -} - -/* Re-calculates the page width and length based on settings, - margins, and, if "auto" is set, the size of the user's - terminal window or GUI output window. */ +/* Re-calculates the page width based on settings, margins, and, if "auto" is + set, the size of the user's terminal window or GUI output window. */ 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 (); - if (a->auto_length) - a->length = settings_get_viewlength () - vertical_margins (a); - - if (a->width < MIN_WIDTH || a->length < MIN_LENGTH) - { - if (issue_error) - error (0, 0, - _("ascii: page excluding margins and headers " - "must be at least %d characters wide by %d lines long, but " - "as configured is only %d characters by %d lines"), - MIN_WIDTH, MIN_LENGTH, - a->width, a->length); - if (a->width < MIN_WIDTH) - a->width = MIN_WIDTH; - if (a->length < MIN_LENGTH) - a->length = MIN_LENGTH; - return false; - } - - reallocate_lines (a); - - 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 @@ -359,15 +523,9 @@ ascii_destroy (struct output_driver *driver) struct ascii_driver *a = ascii_driver_cast (driver); int i; - if (a->y > 0) - ascii_close_page (a); - if (a->file != NULL) - fn_close (a->file_name, a->file); - free (a->command_name); - free (a->title); - free (a->subtitle); - free (a->file_name); + fn_close (a->handle, a->file); + fh_unref (a->handle); free (a->chart_file_name); for (i = 0; i < a->allocated_lines; i++) u8_line_destroy (&a->lines[i]); @@ -379,124 +537,57 @@ static void ascii_flush (struct output_driver *driver) { struct ascii_driver *a = ascii_driver_cast (driver); - if (a->y > 0) - { - ascii_close_page (a); - - if (fn_close (a->file_name, a->file) != 0) - error (0, errno, _("ascii: closing output file `%s'"), - a->file_name); - a->file = NULL; - } + if (a->file) + fflush (a->file); } static void -ascii_init_caption_cell (const char *caption, struct table_cell *cell) +ascii_output_lines (struct ascii_driver *a, size_t n_lines) { - cell->contents = caption; - cell->options = TAB_LEFT; - cell->destructor = NULL; + for (size_t y = 0; y < n_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); + u8_line_clear (&a->lines[y]); + } + putc ('\n', a->file); + } } static void ascii_output_table_item (struct ascii_driver *a, const struct table_item *table_item) { - const char *caption = table_item_get_caption (table_item); - struct render_params params; - struct render_page *page; - struct render_break x_break; - int caption_height; - int i; - update_page_size (a, false); + a->pt = table_item->pt; - if (caption != NULL) - { - /* XXX doesn't do well with very large captions */ - struct table_cell cell; - ascii_init_caption_cell (caption, &cell); - caption_height = ascii_measure_cell_height (a, &cell, a->width); - } - else - caption_height = 0; - - params.draw_line = ascii_draw_line; - params.measure_cell_width = ascii_measure_cell_width; - params.measure_cell_height = ascii_measure_cell_height; - params.draw_cell = ascii_draw_cell, - params.aux = a; - params.size[H] = a->width; - params.size[V] = a->length - caption_height; - 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; - } - - if (a->file == NULL && !ascii_open_page (a)) - return; - - page = render_page_create (¶ms, table_item_get_table (table_item)); - for (render_break_init (&x_break, page, H); - render_break_has_next (&x_break); ) + size_t *layer_indexes; + PIVOT_OUTPUT_FOR_EACH_LAYER (layer_indexes, table_item->pt, true) { - struct render_page *x_slice; - struct render_break y_break; - - x_slice = render_break_next (&x_break, a->width); - for (render_break_init (&y_break, x_slice, V); - render_break_has_next (&y_break); ) + struct render_pager *p = render_pager_create (&a->params, table_item, + layer_indexes); + for (int i = 0; render_pager_has_next (p); i++) { - struct render_page *y_slice; - int space; + if (a->object_cnt++) + putc ('\n', a->file); - if (a->y > 0) - a->y++; - - space = a->length - a->y - caption_height; - if (render_break_next_size (&y_break) > space) - { - assert (a->y > 0); - ascii_close_page (a); - if (!ascii_open_page (a)) - return; - continue; - } - - y_slice = render_break_next (&y_break, space); - if (caption_height) - { - struct table_cell cell; - int bb[TABLE_N_AXES][2]; - - ascii_init_caption_cell (caption, &cell); - bb[H][0] = 0; - bb[H][1] = a->width; - bb[V][0] = 0; - bb[V][1] = caption_height; - ascii_draw_cell (a, &cell, bb, bb); - a->y += caption_height; - caption_height = 0; - } - render_page_draw (y_slice); - a->y += render_page_get_size (y_slice, V); - render_page_unref (y_slice); + ascii_output_lines (a, render_pager_draw_next (p, INT_MAX)); } - render_break_destroy (&y_break); + render_pager_destroy (p); } - render_break_destroy (&x_break); + + a->pt = NULL; } 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); ascii_output_table_item (a, table_item); table_item_unref (table_item); } @@ -507,27 +598,48 @@ ascii_submit (struct output_driver *driver, { struct ascii_driver *a = ascii_driver_cast (driver); - output_driver_track_current_command (output_item, &a->command_name); - if (a->error) return; if (is_table_item (output_item)) ascii_output_table_item (a, to_table_item (output_item)); #ifdef HAVE_CAIRO + else if (is_image_item (output_item) && a->chart_file_name != NULL) + { + struct image_item *image_item = to_image_item (output_item); + char *file_name = xr_write_png_image ( + image_item->image, a->chart_file_name, ++a->chart_cnt); + if (file_name != NULL) + { + struct text_item *text_item; + + text_item = text_item_create_nocopy ( + TEXT_ITEM_LOG, + xasprintf (_("See %s for an image."), file_name), + NULL); + + ascii_submit (driver, &text_item->output_item); + text_item_unref (text_item); + free (file_name); + } + } else if (is_chart_item (output_item) && a->chart_file_name != NULL) { struct chart_item *chart_item = to_chart_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 = text_item_create_nocopy ( + TEXT_ITEM_LOG, + xasprintf (_("See %s for a chart."), file_name), + NULL); ascii_submit (driver, &text_item->output_item); text_item_unref (text_item); @@ -539,47 +651,17 @@ ascii_submit (struct output_driver *driver, { 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: - free (a->title); - a->title = xstrdup (text); - break; - - case TEXT_ITEM_SUBTITLE: - free (a->subtitle); - a->subtitle = xstrdup (text); - break; - - case TEXT_ITEM_COMMAND_OPEN: - case TEXT_ITEM_COMMAND_CLOSE: - break; - - case TEXT_ITEM_BLANK_LINE: - if (a->y > 0) - a->y++; - break; - - case TEXT_ITEM_EJECT_PAGE: - if (a->y > 0) - ascii_close_page (a); - break; - default: - ascii_output_text (a, text); - break; - } + if (type != TEXT_ITEM_PAGE_TITLE) + 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, a->command_name); - ascii_output_text (a, s); - free (s); - } + ascii_output_table_item_unref ( + a, text_item_to_table_item ( + message_item_to_text_item ( + to_message_item ( + output_item_ref (output_item))))); } const struct output_driver_factory txt_driver_factory = @@ -605,27 +687,28 @@ static void ascii_layout_cell (struct ascii_driver *, static void ascii_draw_line (void *a_, int bb[TABLE_N_AXES][2], - enum render_line_style styles[TABLE_N_AXES][2]) + enum render_line_style styles[TABLE_N_AXES][2], + struct cell_color colors[TABLE_N_AXES][2] UNUSED) { struct ascii_driver *a = a_; char mbchar[6]; - int x0, x1, y1; + int x0, y0, 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]; + x0 = MAX (bb[H][0], 0); + y0 = MAX (bb[V][0], 0); x1 = MIN (bb[H][1], a->width); - y1 = MIN (bb[V][1] + a->y, a->length); + y1 = bb[V][1]; + if (x1 <= 0 || y1 <= 0 || x0 >= a->width) + return; /* Draw. */ - uc = a->box[make_box_index (styles[V][0], styles[V][1], - styles[H][0], styles[H][1])]; + uc = box_get (a->box, 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++) + for (y = y0; y < y1; y++) { char *p = ascii_reserve (a, y, x0, x1, mblen * (x1 - x0)); for (x = x0; x < x1; x++) @@ -652,13 +735,8 @@ 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 (strchr (cell->contents, ' ')) - { - bb[H][1] = 1; - ascii_layout_cell (a, cell, bb, clip, min_width, &h); - } - else - *min_width = *max_width; + bb[H][1] = 1; + ascii_layout_cell (a, cell, bb, clip, min_width, &h); } static int @@ -679,46 +757,59 @@ ascii_measure_cell_height (void *a_, const struct table_cell *cell, int width) } static void -ascii_draw_cell (void *a_, const struct table_cell *cell, - int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2]) +ascii_draw_cell (void *a_, const struct table_cell *cell, int color_idx UNUSED, + int bb[TABLE_N_AXES][2], int valign_offset, + int spill[TABLE_N_AXES][2] UNUSED, + int clip[TABLE_N_AXES][2]) { struct ascii_driver *a = a_; int w, h; + bb[V][0] += valign_offset; ascii_layout_cell (a, cell, bb, clip, &w, &h); } static char * ascii_reserve (struct ascii_driver *a, int y, int x0, int x1, int n) { - assert (y < a->allocated_lines); + if (y >= a->allocated_lines) + { + size_t new_alloc = MAX (25, a->allocated_lines); + while (new_alloc <= y) + new_alloc = xtimes (new_alloc, 2); + a->lines = xnrealloc (a->lines, new_alloc, sizeof *a->lines); + for (size_t i = a->allocated_lines; i < new_alloc; i++) + u8_line_init (&a->lines[i]); + a->allocated_lines = new_alloc; + } return u8_line_reserve (&a->lines[y], x0, x1, n); } static void -text_draw (struct ascii_driver *a, unsigned int options, +text_draw (struct ascii_driver *a, enum table_halign halign, bool numeric, + 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) { int x0 = MAX (0, clip[H][0]); - int y0 = MAX (0, clip[V][0] + a->y); - int x1 = clip[H][1]; - int y1 = MIN (a->length, clip[V][1] + a->y); + int y0 = MAX (0, clip[V][0]); + int x1 = MIN (a->width, clip[H][1]); + int y1 = clip[V][1]; int x; - y += a->y; if (y < y0 || y >= y1) return; - switch (options & TAB_ALIGNMENT) + switch (table_halign_interpret (halign, 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: @@ -755,7 +846,7 @@ text_draw (struct ascii_driver *a, unsigned int options, int ofs; ofs = width = 0; - for (ofs = 0; ofs < n; ) + for (ofs = 0; ofs < n;) { ucs4_t uc; int mblen; @@ -777,7 +868,7 @@ text_draw (struct ascii_driver *a, unsigned int options, return; } - if (!(options & TAB_EMPH) || a->emphasis == EMPH_NONE) + if (!a->emphasis || (!bold && !underline)) memcpy (ascii_reserve (a, y, x, x + width, n), string, n); else { @@ -797,7 +888,12 @@ text_draw (struct ascii_driver *a, unsigned int options, w = uc_width (uc, "UTF-8"); if (w > 0) - n_out += a->emphasis == EMPH_UNDERLINE ? 2 : 1 + mblen; + { + if (bold) + n_out += 1 + mblen; + if (underline) + n_out += 2; + } } /* Then insert them. */ @@ -812,11 +908,16 @@ text_draw (struct ascii_driver *a, unsigned int options, if (w > 0) { - if (a->emphasis == EMPH_UNDERLINE) - *out++ = '_'; - else - out = mempcpy (out, string + ofs, mblen); - *out++ = '\b'; + if (bold) + { + out = mempcpy (out, string + ofs, mblen); + *out++ = '\b'; + } + if (underline) + { + *out++ = '_'; + *out++ = '\b'; + } } out = mempcpy (out, string + ofs, mblen); } @@ -828,38 +929,42 @@ 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) { - 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; - breaks = xmalloc (length + 1); - u8_possible_linebreaks (CHAR_CAST (const uint8_t *, text), length, - "UTF-8", breaks); + struct string body = DS_EMPTY_INITIALIZER; + bool numeric = pivot_value_format_body (cell->value, a->pt, &body); + + /* Calculate length; if it's zero, then there's nothing to do. */ + if (ds_is_empty (&body)) + { + ds_destroy (&body); + return; + } + + size_t length = ds_length (&body); + const uint8_t *text = CHAR_CAST (uint8_t *, ds_cstr (&body)); + + char *breaks = xmalloc (length + 1); + u8_possible_linebreaks (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 uint8_t *line = 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 graph_ofs; size_t ofs; - for (ofs = 0; ofs < n; ) + for (ofs = 0; ofs < n;) { ucs4_t uc; int mblen; @@ -892,56 +997,80 @@ ascii_layout_cell (struct ascii_driver *a, const struct table_cell *cell, } ofs += mblen; } - if (b[ofs] != UC_BREAK_MANDATORY) - { - while (ofs > 0 && isspace (line[ofs - 1])) - { - ofs--; - width--; - } - } - if (width > *widthp) - *widthp = width; + + /* Trim any trailing spaces off the end of the text to be drawn. */ + for (graph_ofs = ofs; graph_ofs > 0; graph_ofs--) + if (!isspace (line[graph_ofs - 1])) + break; + width -= ofs - graph_ofs; /* Draw text. */ - text_draw (a, cell->options, bb, clip, y, line, ofs, width); + text_draw (a, cell->cell_style->halign, numeric, + cell->font_style->bold, + cell->font_style->underline, + bb, clip, y, line, graph_ofs, width); + + /* If a new-line ended the line, just skip the new-line. Otherwise, skip + past any spaces past the end of the line (but not past a new-line). */ + if (b[ofs] == UC_BREAK_MANDATORY) + ofs++; + else + while (ofs < n && isspace (line[ofs]) && b[ofs] != UC_BREAK_MANDATORY) + ofs++; - /* Next line. */ + if (width > *widthp) + *widthp = width; + ++*heightp; pos += ofs; - if (ofs < n && isspace (line[ofs])) - pos++; - } - *heightp = y - bb[V][0]; free (breaks); + ds_destroy (&body); } void ascii_test_write (struct output_driver *driver, - const char *s, int x, int y, unsigned int options) + const char *s, int x, int y, bool bold, bool underline) { 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)) + if (!a->file) return; - a->y = 0; - memset (&cell, 0, sizeof cell); - cell.contents = s; - cell.options = options | TAB_LEFT; + struct cell_style cell_style = { .halign = TABLE_HALIGN_LEFT }; + struct font_style font_style = { + .bold = bold, + .underline = underline, + }; + const struct pivot_value value = { + .type = PIVOT_VALUE_TEXT, + .text = { + .local = CONST_CAST (char *, s), + .c = CONST_CAST (char *, s), + .id = CONST_CAST (char *, s), + .user_provided = true, + }, + }; + struct table_cell cell = { + .value = &value, + .font_style = &font_style, + .cell_style = &cell_style, + }; bb[TABLE_HORZ][0] = x; bb[TABLE_HORZ][1] = a->width; bb[TABLE_VERT][0] = y; - bb[TABLE_VERT][1] = a->length; + bb[TABLE_VERT][1] = INT_MAX; + struct pivot_table pt = { + .show_values = SETTINGS_VALUE_SHOW_DEFAULT, + .show_variables = SETTINGS_VALUE_SHOW_DEFAULT, + }; + a->pt = &pt; ascii_layout_cell (a, &cell, bb, bb, &width, &height); - - a->y = 1; + a->pt = NULL; } void @@ -949,150 +1078,71 @@ ascii_test_set_length (struct output_driver *driver, int y, int length) { struct ascii_driver *a = ascii_driver_cast (driver); - if (a->file == NULL && !ascii_open_page (a)) + if (!a->file) return; - if (y < 0 || y >= a->length) + if (y < 0) return; u8_line_set_length (&a->lines[y], length); } + +void +ascii_test_flush (struct output_driver *driver) +{ + struct ascii_driver *a = ascii_driver_cast (driver); + + for (size_t i = a->allocated_lines; i-- > 0;) + if (a->lines[i].width) + { + ascii_output_lines (a, i + 1); + break; + } +} -/* 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) { - int i; - - if (a->error) - return false; - - if (a->file == NULL) - { - a->file = fn_open (a->file_name, 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); -#endif - a->auto_width = true; - a->auto_length = true; - } - } - else - { - error (0, errno, _("ascii: opening output file `%s'"), - a->file_name); - a->error = true; - return false; - } - } - - a->page_number++; - - reallocate_lines (a); - - for (i = 0; i < a->length; i++) - u8_line_clear (&a->lines[i]); - - return true; -} - -static void -output_title_line (FILE *out, int width, const char *left, const char *right) -{ - struct string s = DS_EMPTY_INITIALIZER; - ds_put_byte_multiple (&s, ' ', width); - if (left != NULL) - { - size_t length = MIN (strlen (left), width); - memcpy (ds_end (&s) - width, left, length); - } - if (right != NULL) - { - size_t length = MIN (strlen (right), width); - memcpy (ds_end (&s) - length, right, length); - } - ds_put_byte (&s, '\n'); - fputs (ds_cstr (&s), out); - ds_destroy (&s); -} - -static void -ascii_close_page (struct ascii_driver *a) -{ - bool any_blank; - int i, y; - - a->y = 0; - if (a->file == NULL) - return; - - if (!a->top_margin && !a->bottom_margin && a->squeeze_blank_lines - && !a->paginate && a->page_number > 1) - putc ('\n', a->file); - - for (i = 0; i < a->top_margin; i++) - putc ('\n', a->file); - if (a->headers) + static bool setup_signal; + if (!setup_signal) { - char *r1, *r2; + setup_signal = true; - r1 = xasprintf (_("%s - Page %d"), get_start_date (), a->page_number); - r2 = xasprintf ("%s - %s" , version, host_system); - - output_title_line (a->file, a->width, a->title, r1); - output_title_line (a->file, a->width, a->subtitle, r2); - putc ('\n', a->file); - - free (r1); - free (r2); + struct sigaction action = { .sa_handler = winch_handler }; + sigemptyset (&action.sa_mask); + sigaction (SIGWINCH, &action, NULL); } +#endif - any_blank = false; - for (y = 0; y < a->allocated_lines; y++) + if (terminal_changed) { - struct u8_line *line = &a->lines[y]; + terminal_changed = false; - if (a->squeeze_blank_lines && y > 0 && line->width == 0) - any_blank = true; +#ifdef HAVE_TERMIOS_H + struct winsize ws; + if (!ioctl (0, TIOCGWINSZ, &ws)) + terminal_width = ws.ws_col; else +#endif { - if (any_blank) - { - putc ('\n', a->file); - any_blank = false; - } - - while (ds_chomp_byte (&line->s, ' ')) - continue; - fwrite (ds_data (&line->s), 1, ds_length (&line->s), a->file); - putc ('\n', a->file); + if (getenv ("COLUMNS")) + terminal_width = atoi (getenv ("COLUMNS")); } + + if (terminal_width <= 0 || terminal_width > 1024) + terminal_width = 79; } - if (!a->squeeze_blank_lines) - for (y = a->allocated_lines; y < a->length; y++) - putc ('\n', a->file); - for (i = 0; i < a->bottom_margin; i++) - putc ('\n', a->file); - if (a->paginate) - putc ('\f', a->file); + return terminal_width; }