along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
-#include "output.h"
-#include <stdlib.h>
-#include <stdio.h>
-#include <errno.h>
+
#include <ctype.h>
-#include <libpspp/alloc.h>
+#include <errno.h>
+#include <langinfo.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+
#include <data/file-name.h>
-#include "htmlP.h"
-#include "intprops.h"
-#include <libpspp/misc.h>
#include <data/settings.h>
+#include <libpspp/alloc.h>
+#include <libpspp/misc.h>
#include <libpspp/str.h>
+#include <output/htmlP.h>
+#include <output/output.h>
+
#include "error.h"
+#include "intprops.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
return -1;
}
-/* Encapsulate two characters in a single int. */
-#define TWO_CHARS(A, B) \
- ((A) + ((B)<<8))
-
-/* Determines the size of a dimensional measurement and returns the
- size in units of 1/72000". Units if not specified explicitly are
- inches for values under 50, millimeters otherwise. Returns 0,
- stores NULL to *TAIL on error; otherwise returns dimension, stores
- address of next */
-int
-outp_evaluate_dimension (char *dimen, char **tail)
+/* Parses UNIT as a dimensional unit. Returns the multiplicative
+ factor needed to change a quantity measured in that unit into
+ 1/72000" units. If UNIT is empty, it is treated as
+ millimeters. If the unit is unrecognized, returns 0. */
+static double
+parse_unit (const char *unit)
{
- char *s = dimen;
- char *ptail;
- double value;
-
- value = strtod (s, &ptail);
- if (ptail == s)
- goto lossage;
- if (*ptail == '-')
- {
- double b, c;
- s = &ptail[1];
- b = strtod (s, &ptail);
- if (b <= 0.0 || ptail == s)
- goto lossage;
- if (*ptail != '/')
- goto lossage;
- s = &ptail[1];
- c = strtod (s, &ptail);
- if (c <= 0.0 || ptail == s)
- goto lossage;
- s = ptail;
- if (c == 0.0)
- goto lossage;
- if (value > 0)
- value += b / c;
- else
- value -= b / c;
- }
- else if (*ptail == '/')
- {
- double b;
- s = &ptail[1];
- b = strtod (s, &ptail);
- if (b <= 0.0 || ptail == s)
- goto lossage;
- s = ptail;
- value /= b;
- }
- else
- s = ptail;
- if (*s == 0 || isspace ((unsigned char) *s))
- {
- if (value < 50.0)
- value *= 72000;
- else
- value *= 72000 / 25.4;
- }
- else
+ struct unit
{
+ char name[3];
double factor;
+ };
- /* Standard TeX units are supported. */
- if (*s == '"')
- factor = 72000, s++;
- else
- switch (TWO_CHARS (s[0], s[1]))
- {
- case TWO_CHARS ('p', 't'):
- factor = 72000 / 72.27;
- break;
- case TWO_CHARS ('p', 'c'):
- factor = 72000 / 72.27 * 12.0;
- break;
- case TWO_CHARS ('i', 'n'):
- factor = 72000;
- break;
- case TWO_CHARS ('b', 'p'):
- factor = 72000 / 72.0;
- break;
- case TWO_CHARS ('c', 'm'):
- factor = 72000 / 2.54;
- break;
- case TWO_CHARS ('m', 'm'):
- factor = 72000 / 25.4;
- break;
- case TWO_CHARS ('d', 'd'):
- factor = 72000 / 72.27 * 1.0700086;
- break;
- case TWO_CHARS ('c', 'c'):
- factor = 72000 / 72.27 * 12.840104;
- break;
- case TWO_CHARS ('s', 'p'):
- factor = 72000 / 72.27 / 65536.0;
- break;
- default:
- error (0, 0,
- _("unit \"%s\" is unknown in dimension \"%s\""), s, dimen);
- *tail = NULL;
- return 0;
- }
- ptail += 2;
- value *= factor;
- }
- if (value <= 0.0)
- goto lossage;
- if (tail)
- *tail = ptail;
- return value + 0.5;
-
-lossage:
- *tail = NULL;
- error (0, 0, _("bad dimension \"%s\""), dimen);
+ static const struct unit units[] =
+ {
+ {"pt", 72000 / 72},
+ {"pc", 72000 / 72 * 12.0},
+ {"in", 72000},
+ {"cm", 72000 / 2.54},
+ {"mm", 72000 / 25.4},
+ {"", 72000 / 25.4},
+ };
+
+ const struct unit *p;
+
+ unit += strspn (unit, CC_SPACES);
+ for (p = units; p < units + sizeof units / sizeof *units; p++)
+ if (!strcasecmp (unit, p->name))
+ return p->factor;
+ return 0.0;
+}
+
+/* Determines the size of a dimensional measurement and returns
+ the size in units of 1/72000". Units are assumed to be
+ millimeters unless otherwise specified. Returns 0 on
+ error. */
+int
+outp_evaluate_dimension (const char *dimen)
+{
+ double raw, factor;
+ char *tail;
+
+ /* Number. */
+ raw = strtod (dimen, &tail);
+ if (raw <= 0.0)
+ goto syntax_error;
+
+ /* Unit. */
+ factor = parse_unit (tail);
+ if (factor == 0.0)
+ goto syntax_error;
+
+ return raw * factor;
+
+syntax_error:
+ error (0, 0, _("`%s' is not a valid length."), dimen);
return 0;
}
/* Stores the dimensions in 1/72000" units of paper identified by
- SIZE, which is of form `HORZ x VERT' or `HORZ by VERT' where each
- of HORZ and VERT are dimensions, into *H and *V. Return true on
- success. */
+ SIZE, which is of form `HORZ x VERT [UNIT]' where HORZ and
+ VERT are numbers and UNIT is an optional unit of measurement,
+ into *H and *V. Return true on success. */
static bool
-internal_get_paper_size (char *size, int *h, int *v)
+parse_paper_size (const char *size, int *h, int *v)
{
+ double raw_h, raw_v, factor;
char *tail;
- while (isspace ((unsigned char) *size))
- size++;
- *h = outp_evaluate_dimension (size, &tail);
- if (tail == NULL)
+ /* Width. */
+ raw_h = strtod (size, &tail);
+ if (raw_h <= 0.0)
+ return false;
+
+ /* Delimiter. */
+ tail += strspn (tail, CC_SPACES "x,");
+
+ /* Length. */
+ raw_v = strtod (tail, &tail);
+ if (raw_v <= 0.0)
+ return false;
+
+ /* Unit. */
+ factor = parse_unit (tail);
+ if (factor == 0.0)
return false;
- while (isspace ((unsigned char) *tail))
- tail++;
- if (*tail == 'x')
- tail++;
- else if (*tail == 'b' && tail[1] == 'y')
- tail += 2;
- else
- {
- error (0, 0, _("`x' expected in paper size `%s'"), size);
- return false;
- }
- *v = outp_evaluate_dimension (tail, &tail);
- if (tail == NULL)
- return 0;
- while (isspace ((unsigned char) *tail))
- tail++;
- if (*tail)
- {
- error (0, 0, _("trailing garbage `%s' on paper size `%s'"), tail, size);
- return false;
- }
+ *h = raw_h * factor + .5;
+ *v = raw_v * factor + .5;
return true;
}
-/* Stores the dimensions, in 1/72000" units, of paper identified by
- SIZE into *H and *V. SIZE may be a pair of dimensions of form `H x
- V', or it may be a case-insensitive paper identifier, which is
- looked up in the `papersize' configuration file. Returns true
- on success. May modify SIZE. */
-/* Don't read further unless you've got a strong stomach. */
-bool
-outp_get_paper_size (char *size, int *h, int *v)
+static bool
+get_standard_paper_size (struct substring name, int *h, int *v)
{
- struct paper_size
+ static const char *sizes[][2] =
{
- char *name;
- int use;
- int h, v;
+ {"a0", "841 x 1189 mm"},
+ {"a1", "594 x 841 mm"},
+ {"a2", "420 x 594 mm"},
+ {"a3", "297 x 420 mm"},
+ {"a4", "210 x 297 mm"},
+ {"a5", "148 x 210 mm"},
+ {"b5", "176 x 250 mm"},
+ {"a6", "105 x 148 mm"},
+ {"a7", "74 x 105 mm"},
+ {"a8", "52 x 74 mm"},
+ {"a9", "37 x 52 mm"},
+ {"a10", "26 x 37 mm"},
+ {"b0", "1000 x 1414 mm"},
+ {"b1", "707 x 1000 mm"},
+ {"b2", "500 x 707 mm"},
+ {"b3", "353 x 500 mm"},
+ {"b4", "250 x 353 mm"},
+ {"letter", "612 x 792 pt"},
+ {"legal", "612 x 1008 pt"},
+ {"executive", "522 x 756 pt"},
+ {"note", "612 x 792 pt"},
+ {"11x17", "792 x 1224 pt"},
+ {"tabloid", "792 x 1224 pt"},
+ {"statement", "396 x 612 pt"},
+ {"halfletter", "396 x 612 pt"},
+ {"halfexecutive", "378 x 522 pt"},
+ {"folio", "612 x 936 pt"},
+ {"quarto", "610 x 780 pt"},
+ {"ledger", "1224 x 792 pt"},
+ {"archA", "648 x 864 pt"},
+ {"archB", "864 x 1296 pt"},
+ {"archC", "1296 x 1728 pt"},
+ {"archD", "1728 x 2592 pt"},
+ {"archE", "2592 x 3456 pt"},
+ {"flsa", "612 x 936 pt"},
+ {"flse", "612 x 936 pt"},
+ {"csheet", "1224 x 1584 pt"},
+ {"dsheet", "1584 x 2448 pt"},
+ {"esheet", "2448 x 3168 pt"},
};
- FILE *f;
- char *pprsz_fn;
-
- struct string line;
- int line_number = 0;
-
- bool free_it = false;
- bool result = false;
- char *ep;
-
- while (isspace ((unsigned char) *size))
- size++;
- if (isdigit ((unsigned char) *size))
- return internal_get_paper_size (size, h, v);
- ep = size;
- while (*ep)
- ep++;
- while (isspace ((unsigned char) *ep) && ep >= size)
- ep--;
- if (ep == size)
- {
- error (0, 0, _("paper size name cannot be empty"));
- return 0;
- }
-
- ep++;
- if (*ep)
- *ep = 0;
-
- pprsz_fn = fn_search_path (fn_getenv_default ("STAT_OUTPUT_PAPERSIZE_FILE",
- "papersize"),
- fn_getenv_default ("STAT_OUTPUT_INIT_PATH",
- config_path));
+ size_t i;
- ds_init_empty (&line);
+ for (i = 0; i < sizeof sizes / sizeof *sizes; i++)
+ if (ss_equals_case (ss_cstr (sizes[i][0]), name))
+ {
+ bool ok = parse_paper_size (sizes[i][1], h, v);
+ assert (ok);
+ return ok;
+ }
+ error (0, 0, _("unknown paper type `%.*s'"),
+ (int) ss_length (name), ss_data (name));
+ return false;
+}
- if (pprsz_fn == NULL)
- {
- error (0, 0, _("cannot find `papersize' configuration file"));
- goto exit;
- }
+/* Reads file FILE_NAME to find a paper size. Stores the
+ dimensions, in 1/72000" units, into *H and *V. Returns true
+ on success, false on failure. */
+static bool
+read_paper_conf (const char *file_name, int *h, int *v)
+{
+ struct string line = DS_EMPTY_INITIALIZER;
+ int line_number = 0;
+ FILE *file;
- f = fopen (pprsz_fn, "r");
- if (!f)
+ file = fopen (file_name, "r");
+ if (file == NULL)
{
- error (0, errno, _("error opening \"%s\""), pprsz_fn);
- goto exit;
+ error (0, errno, _("error opening \"%s\""), file_name);
+ return false;
}
for (;;)
{
- struct substring p, name;
+ struct substring name;
- if (!ds_read_config_line (&line, &line_number, f))
+ if (!ds_read_config_line (&line, &line_number, file))
{
- if (ferror (f))
- error (0, errno, _("error reading \"%s\""), pprsz_fn);
+ if (ferror (file))
+ error (0, errno, _("error reading \"%s\""), file_name);
break;
}
- p = ds_ss (&line);
- ss_ltrim (&p, ss_cstr (CC_SPACES));
- if (!ss_match_char (&p, '"') || !ss_get_until (&p, '"', &name))
- goto lex_error;
- if (ss_compare (name, ss_cstr (size)))
- continue;
+ name = ds_ss (&line);
+ ss_trim (&name, ss_cstr (CC_SPACES));
+ if (!ss_is_empty (name))
+ {
+ bool ok = get_standard_paper_size (name, h, v);
+ fclose (file);
+ ds_destroy (&line);
+ return ok;
+ }
+ }
- ss_ltrim (&p, ss_cstr (CC_SPACES));
- if (ss_match_char (&p, '='))
- {
- if (free_it)
- free (size);
- ss_trim (&p, ss_cstr (CC_SPACES));
- size = ss_xstrdup (p);
- free_it = true;
- continue;
- }
- size = ss_data (p);
- break;
+ fclose (file);
+ ds_destroy (&line);
+ error (0, 0, _("paper size file \"%s\" does not state a paper size"),
+ file_name);
+ return false;
+}
- lex_error:
- error_at_line (0, 0, pprsz_fn, line_number,
- _("syntax error in paper size definition"));
- }
+/* The user didn't specify a paper size, so let's choose a
+ default based on his environment. Stores the
+ dimensions, in 1/72000" units, into *H and *V. Returns true
+ on success, false on failure. */
+static bool
+get_default_paper_size (int *h, int *v)
+{
+ /* libpaper in Debian (and other distributions?) allows the
+ paper size to be specified in $PAPERSIZE or in a file
+ specified in $PAPERCONF. */
+ if (getenv ("PAPERSIZE") != NULL)
+ return get_standard_paper_size (ss_cstr (getenv ("PAPERSIZE")), h, v);
+ if (getenv ("PAPERCONF") != NULL)
+ return read_paper_conf (getenv ("PAPERCONF"), h, v);
+
+#if HAVE_LC_PAPER
+ /* LC_PAPER is a non-standard glibc extension. */
+ *h = (int) nl_langinfo(_NL_PAPER_WIDTH) * (72000 / 25.4);
+ *v = (int) nl_langinfo(_NL_PAPER_HEIGHT) * (72000 / 25.4);
+ if (*h > 0 && *v > 0)
+ return true;
+#endif
+
+ /* libpaper defaults to /etc/papersize. */
+ if (fn_exists ("/etc/papersize"))
+ return read_paper_conf ("/etc/papersize", h, v);
+
+ /* Can't find a default. */
+ return false;
+}
- /* We found the one we want! */
- result = internal_get_paper_size (size, h, v);
+/* Stores the dimensions, in 1/72000" units, of paper identified
+ by SIZE into *H and *V. SIZE can be the name of a kind of
+ paper ("a4", "letter", ...) or a pair of dimensions
+ ("210x297", "8.5x11in", ...). Returns true on success, false
+ on failure. On failure, *H and *V are set for A4 paper. */
+bool
+outp_get_paper_size (const char *size, int *h, int *v)
+{
+ struct substring s;
+ bool ok;
-exit:
- ds_destroy (&line);
- if (free_it)
- free (size);
+ s = ss_cstr (size);
+ ss_trim (&s, ss_cstr (CC_SPACES));
- if (!result)
- error (0, 0, _("error reading paper size definition file"));
+ if (ss_is_empty (s))
+ {
+ /* Treat empty string as default paper size. */
+ ok = get_default_paper_size (h, v);
+ }
+ else if (isdigit (ss_first (s)))
+ {
+ /* Treat string that starts with digit as explicit size. */
+ ok = parse_paper_size (size, h, v);
+ if (!ok)
+ error (0, 0, _("syntax error in paper size `%s'"), size);
+ }
+ else
+ {
+ /* Check against standard paper sizes. */
+ ok = get_standard_paper_size (s, h, v);
+ }
- return result;
+ /* Default to A4 on error. */
+ if (!ok)
+ {
+ *h = 210 * (72000 / 25.4);
+ *v = 297 * (72000 / 25.4);
+ }
+ return ok;
}
/* If D is NULL, returns the first enabled driver if any, NULL if
projects / pspp-builds.git / blobdiff