#include <stdlib.h>
#include <data/file-name.h>
-#include <libpspp/alloc.h>
+#include <data/settings.h>
#include <libpspp/assertion.h>
#include <libpspp/compiler.h>
#include <libpspp/pool.h>
#include "error.h"
#include "minmax.h"
#include "output.h"
+#include "xalloc.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
/* ASCII driver options: (defaults listed first)
output-file="pspp.list"
+ append=no|yes If output-file exists, append to it?
chart-files="pspp-#.png" Name used for charts.
chart-type=png Format of charts (use "none" to disable).
headers=on|off Put headers at top of page?
emphasis=bold|underline|none Style to use for emphasis.
- length=66
- width=130
+ length=66|auto
+ width=79|auto
squeeze=off|on Squeeze multiple newlines into exactly one.
top-margin=2
struct pool *pool;
/* 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? */
const char *chart_type; /* Type of charts to output; NULL for none. */
const char *chart_file_name; /* Name of files used for charts. */
+ bool auto_width; /* Use viewwidth as page width? */
+ bool auto_length; /* Use viewlength as page width? */
int page_length; /* Page length before subtracting margins. */
int top_margin; /* Top margin in lines. */
int bottom_margin; /* Bottom margin in lines. */
/* Internal state. */
char *file_name; /* Output file name. */
FILE *file; /* Output file. */
+ bool reported_error; /* Reported file open error? */
int page_number; /* Current page number. */
struct line *lines; /* Page content. */
int line_cap; /* Number of lines allocated. */
static void ascii_flush (struct outp_driver *);
static int get_default_box_char (size_t idx);
+static bool update_page_size (struct outp_driver *, bool issue_error);
static bool handle_option (struct outp_driver *this, const char *key,
const struct string *val);
this->horiz_line_width[i] = this->vert_line_width[i] = i != OUTP_L_NONE;
this->ext = x = pool_create_container (struct ascii_driver_ext, pool);
+ x->append = false;
x->headers = true;
x->paginate = true;
x->squeeze_blank_lines = false;
x->tab_width = 8;
x->chart_file_name = pool_strdup (x->pool, "pspp-#.png");
x->chart_type = pool_strdup (x->pool, "png");
+ x->auto_width = false;
+ x->auto_length = false;
x->page_length = 66;
x->top_margin = 2;
x->bottom_margin = 2;
x->init = NULL;
x->file_name = pool_strdup (x->pool, "pspp.list");
x->file = NULL;
+ x->reported_error = false;
x->page_number = 0;
x->lines = NULL;
x->line_cap = 0;
if (!outp_parse_options (options, handle_option, this))
goto error;
- this->length = x->page_length - x->top_margin - x->bottom_margin - 1;
- if (x->headers)
- this->length -= 3;
-
- if (this->width < 59 || this->length < 15)
- {
- error (0, 0,
- _("ascii: page excluding margins and headers "
- "must be at least 59 characters wide by 15 lines long, but as "
- "configured is only %d characters by %d lines"),
- this->width, this->length);
- return false;
- }
+ if (!update_page_size (this, true))
+ goto error;
for (i = 0; i < LNS_COUNT; i++)
if (x->box[i] == NULL)
}
}
+/* 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. */
+static bool
+update_page_size (struct outp_driver *this, bool issue_error)
+{
+ struct ascii_driver_ext *x = this->ext;
+ int margins = x->top_margin + x->bottom_margin + 1 + (x->headers ? 3 : 0);
+
+ if (x->auto_width)
+ this->width = get_viewwidth ();
+ if (x->auto_length)
+ x->page_length = get_viewlength ();
+
+ this->length = x->page_length - margins;
+
+ if (this->width < 59 || this->length < 15)
+ {
+ if (issue_error)
+ error (0, 0,
+ _("ascii: page excluding margins and headers "
+ "must be at least 59 characters wide by 15 lines long, but "
+ "as configured is only %d characters by %d lines"),
+ this->width, this->length);
+ if (this->width < 59)
+ this->width = 59;
+ if (this->length < 15)
+ {
+ this->length = 15;
+ x->page_length = this->length + margins;
+ }
+ return false;
+ }
+
+ return true;
+}
+
static bool
ascii_close_driver (struct outp_driver *this)
{
boolean_arg,
emphasis_arg,
nonneg_int_arg,
- pos_int_arg,
+ page_size_arg,
string_arg
};
{"headers", boolean_arg, 0},
{"paginate", boolean_arg, 1},
{"squeeze", boolean_arg, 2},
+ {"append", boolean_arg, 3},
{"emphasis", emphasis_arg, 0},
- {"length", pos_int_arg, 0},
- {"width", pos_int_arg, 1},
+ {"length", page_size_arg, 0},
+ {"width", page_size_arg, 1},
{"top-margin", nonneg_int_arg, 0},
{"bottom-margin", nonneg_int_arg, 1},
case -1:
error (0, 0, _("ascii: unknown parameter `%s'"), key);
break;
- case pos_int_arg:
+ case page_size_arg:
{
char *tail;
int arg;
- errno = 0;
- arg = strtol (value, &tail, 0);
- if (arg < 1 || errno == ERANGE || *tail)
- {
- error (0, 0, _("ascii: positive integer required as `%s' value"),
- key);
- break;
- }
- switch (subcat)
- {
- case 0:
- x->page_length = arg;
- break;
- case 1:
- this->width = arg;
- break;
- default:
- NOT_REACHED ();
- }
+ if (ss_equals_case (ds_ss (val), ss_cstr ("auto")))
+ {
+ if (!(this->device & OUTP_DEV_SCREEN))
+ {
+ /* We only let `screen' devices have `auto'
+ length or width because output to such devices
+ is flushed before each new command. Resizing
+ a device in the middle of output seems like a
+ bad idea. */
+ error (0, 0, _("ascii: only screen devices may have `auto' "
+ "length or width"));
+ }
+ else if (subcat == 0)
+ x->auto_length = true;
+ else
+ x->auto_width = true;
+ }
+ else
+ {
+ errno = 0;
+ arg = strtol (value, &tail, 0);
+ if (arg < 1 || errno == ERANGE || *tail)
+ {
+ error (0, 0, _("ascii: positive integer required as "
+ "`%s' value"),
+ key);
+ break;
+ }
+ switch (subcat)
+ {
+ case 0:
+ x->page_length = arg;
+ break;
+ case 1:
+ this->width = arg;
+ break;
+ default:
+ NOT_REACHED ();
+ }
+ }
}
break;
case emphasis_arg:
case 2:
x->squeeze_blank_lines = setting;
break;
+ case 3:
+ x->append = setting;
+ break;
default:
NOT_REACHED ();
}
struct ascii_driver_ext *x = this->ext;
int i;
+ update_page_size (this, false);
+
if (x->file == NULL)
{
- x->file = fn_open (x->file_name, "w");
- if (x->file == NULL)
+ x->file = fn_open (x->file_name, x->append ? "a" : "w");
+ if (x->file != NULL)
{
- error (0, errno, _("ascii: opening output file \"%s\""),
- x->file_name);
- return;
+ pool_attach_file (x->pool, x->file);
+ if (x->init != NULL)
+ fputs (x->init, x->file);
+ }
+ else
+ {
+ /* Report the error to the user and complete
+ initialization. If we do not finish initialization,
+ then calls to other driver functions will segfault
+ later. It would be better to simply drop the driver
+ entirely, but we do not have a convenient mechanism
+ for this (yet). */
+ if (!x->reported_error)
+ error (0, errno, _("ascii: opening output file \"%s\""),
+ x->file_name);
+ x->reported_error = true;
}
- pool_attach_file (x->pool, x->file);
-
- if (x->init != NULL)
- fputs (x->init, x->file);
}
x->page_number++;
ascii_flush (struct outp_driver *this)
{
struct ascii_driver_ext *x = this->ext;
-
if (x->file != NULL)
{
if (fn_close (x->file_name, x->file) != 0)
projects / pspp-builds.git / blobdiff