-/* $Id: out.c,v 1.4 2009/10/09 06:54:11 kristaps Exp $ */
+/* $Id: out.c,v 1.29 2010/08/29 11:28:09 kristaps Exp $ */
/*
- * Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
#include <sys/types.h>
+#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
+#include <time.h>
#include "out.h"
-
/*
* Convert a `scaling unit' to a consistent form, or fail. Scaling
- * units are documented in groff.7, which stipulates the following:
- *
- * (1) A scaling unit is a signed/unsigned integer/float with or
- * without a unit.
- *
- * (2) The following units exist:
- * c Centimeter
- * i Inch
- * P Pica = 1/6 inch
- * p Point = 1/72 inch
- * m Em = the font size in points (width of letter m)
- * M 100th of an Em
- * n En = Em/2
- * u Basic unit for actual output device
- * v Vertical line space in basic units scaled point =
- * 1/sizescale of a point (defined in font DESC file)
- * f Scale by 65536.
+ * units are documented in groff.7, mdoc.7, man.7.
*/
int
-a2roffsu(const char *src, struct roffsu *dst)
+a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
{
char buf[BUFSIZ], hasd;
int i;
enum roffscale unit;
+ if ('\0' == *src)
+ return(0);
+
i = hasd = 0;
switch (*src) {
break;
}
+ if ('\0' == *src)
+ return(0);
+
while (i < BUFSIZ) {
if ( ! isdigit((u_char)*src)) {
if ('.' != *src)
unit = SCALE_EM;
break;
case ('\0'):
- /* FALLTHROUGH */
+ if (SCALE_MAX == def)
+ return(0);
+ unit = SCALE_BU;
+ break;
case ('u'):
unit = SCALE_BU;
break;
return(0);
}
+ /* FIXME: do this in the caller. */
if ((dst->scale = atof(buf)) < 0)
dst->scale = 0;
dst->unit = unit;
- dst->pt = hasd;
-
return(1);
}
+
+
+/*
+ * Correctly writes the time in nroff form, which differs from standard
+ * form in that a space isn't printed in lieu of the extra %e field for
+ * single-digit dates.
+ */
+void
+time2a(time_t t, char *dst, size_t sz)
+{
+ struct tm tm;
+ char buf[5];
+ char *p;
+ size_t nsz;
+
+ assert(sz > 1);
+ localtime_r(&t, &tm);
+
+ p = dst;
+ nsz = 0;
+
+ dst[0] = '\0';
+
+ if (0 == (nsz = strftime(p, sz, "%B ", &tm)))
+ return;
+
+ p += (int)nsz;
+ sz -= nsz;
+
+ if (0 == strftime(buf, sizeof(buf), "%e, ", &tm))
+ return;
+
+ nsz = strlcat(p, buf + (' ' == buf[0] ? 1 : 0), sz);
+
+ if (nsz >= sz)
+ return;
+
+ p += (int)nsz;
+ sz -= nsz;
+
+ (void)strftime(p, sz, "%Y", &tm);
+}
+
+
+int
+a2roffdeco(enum roffdeco *d, const char **word, size_t *sz)
+{
+ int i, j, lim;
+ char term, c;
+ const char *wp;
+ enum roffdeco dd;
+
+ *d = DECO_NONE;
+ lim = i = 0;
+ term = '\0';
+ wp = *word;
+
+ switch ((c = wp[i++])) {
+ case ('('):
+ *d = DECO_SPECIAL;
+ lim = 2;
+ break;
+ case ('F'):
+ /* FALLTHROUGH */
+ case ('f'):
+ *d = 'F' == c ? DECO_FFONT : DECO_FONT;
+
+ switch (wp[i++]) {
+ case ('('):
+ lim = 2;
+ break;
+ case ('['):
+ term = ']';
+ break;
+ case ('3'):
+ /* FALLTHROUGH */
+ case ('B'):
+ *d = DECO_BOLD;
+ return(i);
+ case ('2'):
+ /* FALLTHROUGH */
+ case ('I'):
+ *d = DECO_ITALIC;
+ return(i);
+ case ('P'):
+ *d = DECO_PREVIOUS;
+ return(i);
+ case ('1'):
+ /* FALLTHROUGH */
+ case ('R'):
+ *d = DECO_ROMAN;
+ return(i);
+ default:
+ i--;
+ lim = 1;
+ break;
+ }
+ break;
+ case ('k'):
+ /* FALLTHROUGH */
+ case ('M'):
+ /* FALLTHROUGH */
+ case ('m'):
+ /* FALLTHROUGH */
+ case ('*'):
+ if ('*' == c)
+ *d = DECO_RESERVED;
+
+ switch (wp[i++]) {
+ case ('('):
+ lim = 2;
+ break;
+ case ('['):
+ term = ']';
+ break;
+ default:
+ i--;
+ lim = 1;
+ break;
+ }
+ break;
+ case ('h'):
+ /* FALLTHROUGH */
+ case ('v'):
+ /* FALLTHROUGH */
+ case ('s'):
+ j = 0;
+ if ('+' == wp[i] || '-' == wp[i]) {
+ i++;
+ j = 1;
+ }
+
+ switch (wp[i++]) {
+ case ('('):
+ lim = 2;
+ break;
+ case ('['):
+ term = ']';
+ break;
+ case ('\''):
+ term = '\'';
+ break;
+ case ('0'):
+ j = 1;
+ /* FALLTHROUGH */
+ default:
+ i--;
+ lim = 1;
+ break;
+ }
+
+ if ('+' == wp[i] || '-' == wp[i]) {
+ if (j)
+ return(i);
+ i++;
+ }
+
+ /* Handle embedded numerical subexp or escape. */
+
+ if ('(' == wp[i]) {
+ while (wp[i] && ')' != wp[i])
+ if ('\\' == wp[i++]) {
+ /* Handle embedded escape. */
+ *word = &wp[i];
+ i += a2roffdeco(&dd, word, sz);
+ }
+
+ if (')' == wp[i++])
+ break;
+
+ *d = DECO_NONE;
+ return(i - 1);
+ } else if ('\\' == wp[i]) {
+ *word = &wp[++i];
+ i += a2roffdeco(&dd, word, sz);
+ }
+
+ break;
+ case ('['):
+ *d = DECO_SPECIAL;
+ term = ']';
+ break;
+ case ('c'):
+ *d = DECO_NOSPACE;
+ return(i);
+ case ('z'):
+ *d = DECO_NONE;
+ if ('\\' == wp[i]) {
+ *word = &wp[++i];
+ return(i + a2roffdeco(&dd, word, sz));
+ } else
+ lim = 1;
+ break;
+ case ('o'):
+ /* FALLTHROUGH */
+ case ('w'):
+ if ('\'' == wp[i++]) {
+ term = '\'';
+ break;
+ }
+ /* FALLTHROUGH */
+ default:
+ *d = DECO_SSPECIAL;
+ i--;
+ lim = 1;
+ break;
+ }
+
+ assert(term || lim);
+ *word = &wp[i];
+
+ if (term) {
+ j = i;
+ while (wp[i] && wp[i] != term)
+ i++;
+ if ('\0' == wp[i]) {
+ *d = DECO_NONE;
+ return(i);
+ }
+
+ assert(i >= j);
+ *sz = (size_t)(i - j);
+
+ return(i + 1);
+ }
+
+ assert(lim > 0);
+ *sz = (size_t)lim;
+
+ for (j = 0; wp[i] && j < lim; j++)
+ i++;
+ if (j < lim)
+ *d = DECO_NONE;
+
+ return(i);
+}
git.ckatri.com / mandoc.git / blobdiff