-/* $Id: term_ascii.c,v 1.13 2011/05/14 17:54:42 kristaps Exp $ */
+/* $Id: term_ascii.c,v 1.33 2014/09/03 05:22:45 schwarze Exp $ */
/*
- * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
*
* 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>
+#if HAVE_WCHAR
+#include <locale.h>
+#endif
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
+#if HAVE_WCHAR
+#include <wchar.h>
+#endif
#include "mandoc.h"
+#include "mandoc_aux.h"
#include "out.h"
#include "term.h"
#include "main.h"
+static struct termp *ascii_init(enum termenc, char *);
static double ascii_hspan(const struct termp *,
const struct roffsu *);
static size_t ascii_width(const struct termp *, int);
static void ascii_end(struct termp *);
static void ascii_endline(struct termp *);
static void ascii_letter(struct termp *, int);
+static void ascii_setwidth(struct termp *, int, size_t);
+#if HAVE_WCHAR
+static void locale_advance(struct termp *, size_t);
+static void locale_endline(struct termp *);
+static void locale_letter(struct termp *, int);
+static size_t locale_width(const struct termp *, int);
+#endif
-void *
-ascii_alloc(char *outopts)
+
+static struct termp *
+ascii_init(enum termenc enc, char *outopts)
{
- struct termp *p;
- const char *toks[2];
+ const char *toks[5];
char *v;
+ struct termp *p;
- p = term_alloc(TERMENC_ASCII);
+ p = mandoc_calloc(1, sizeof(struct termp));
p->tabwidth = 5;
- p->defrmargin = 78;
+ p->defrmargin = p->lastrmargin = 78;
- p->advance = ascii_advance;
p->begin = ascii_begin;
p->end = ascii_end;
- p->endline = ascii_endline;
p->hspan = ascii_hspan;
- p->letter = ascii_letter;
p->type = TERMTYPE_CHAR;
+
+ p->enc = TERMENC_ASCII;
+ p->advance = ascii_advance;
+ p->endline = ascii_endline;
+ p->letter = ascii_letter;
+ p->setwidth = ascii_setwidth;
p->width = ascii_width;
- toks[0] = "width";
- toks[1] = NULL;
+#if HAVE_WCHAR
+ if (TERMENC_ASCII != enc) {
+ v = TERMENC_LOCALE == enc ?
+ setlocale(LC_ALL, "") :
+ setlocale(LC_CTYPE, "en_US.UTF-8");
+ if (NULL != v && MB_CUR_MAX > 1) {
+ p->enc = enc;
+ p->advance = locale_advance;
+ p->endline = locale_endline;
+ p->letter = locale_letter;
+ p->width = locale_width;
+ }
+ }
+#endif
+
+ toks[0] = "indent";
+ toks[1] = "width";
+ toks[2] = "mdoc";
+ toks[3] = "synopsis";
+ toks[4] = NULL;
while (outopts && *outopts)
switch (getsubopt(&outopts, UNCONST(toks), &v)) {
- case (0):
+ case 0:
+ p->defindent = (size_t)atoi(v);
+ break;
+ case 1:
p->defrmargin = (size_t)atoi(v);
break;
+ case 2:
+ /*
+ * Temporary, undocumented mode
+ * to imitate mdoc(7) output style.
+ */
+ p->mdocstyle = 1;
+ p->defindent = 5;
+ break;
+ case 3:
+ p->synopsisonly = 1;
+ break;
default:
break;
}
return(p);
}
+void *
+ascii_alloc(char *outopts)
+{
+
+ return(ascii_init(TERMENC_ASCII, outopts));
+}
+
+void *
+utf8_alloc(char *outopts)
+{
+
+ return(ascii_init(TERMENC_UTF8, outopts));
+}
+
+void *
+locale_alloc(char *outopts)
+{
+
+ return(ascii_init(TERMENC_LOCALE, outopts));
+}
+
+static void
+ascii_setwidth(struct termp *p, int iop, size_t width)
+{
+
+ p->rmargin = p->defrmargin;
+ if (0 < iop)
+ p->defrmargin += width;
+ else if (0 > iop)
+ p->defrmargin -= width;
+ else
+ p->defrmargin = width ? width : p->lastrmargin;
+ p->lastrmargin = p->rmargin;
+ p->rmargin = p->maxrmargin = p->defrmargin;
+}
-/* ARGSUSED */
static size_t
ascii_width(const struct termp *p, int c)
{
return(1);
}
-
void
ascii_free(void *arg)
{
term_free((struct termp *)arg);
}
-
-/* ARGSUSED */
static void
ascii_letter(struct termp *p, int c)
{
-
- /* LINTED */
+
putchar(c);
}
-
static void
ascii_begin(struct termp *p)
{
(*p->headf)(p, p->argf);
}
-
static void
ascii_end(struct termp *p)
{
(*p->footf)(p, p->argf);
}
-
-/* ARGSUSED */
static void
ascii_endline(struct termp *p)
{
putchar('\n');
}
-
-/* ARGSUSED */
static void
ascii_advance(struct termp *p, size_t len)
{
- size_t i;
+ size_t i;
- /* Just print whitespace on the terminal. */
for (i = 0; i < len; i++)
putchar(' ');
}
-
-/* ARGSUSED */
static double
ascii_hspan(const struct termp *p, const struct roffsu *su)
{
double r;
/*
- * Approximate based on character width. These are generated
- * entirely by eyeballing the screen, but appear to be correct.
+ * Approximate based on character width.
+ * None of these will be actually correct given that an inch on
+ * the screen depends on character size, terminal, etc., etc.
*/
-
switch (su->unit) {
- case (SCALE_CM):
- r = 4 * su->scale;
+ case SCALE_BU:
+ r = su->scale * 10.0 / 240.0;
break;
- case (SCALE_IN):
- r = 10 * su->scale;
+ case SCALE_CM:
+ r = su->scale * 10.0 / 2.54;
break;
- case (SCALE_PC):
- r = (10 * su->scale) / 6;
+ case SCALE_FS:
+ r = su->scale * 2730.666;
break;
- case (SCALE_PT):
- r = (10 * su->scale) / 72;
+ case SCALE_IN:
+ r = su->scale * 10.0;
break;
- case (SCALE_MM):
- r = su->scale / 1000;
+ case SCALE_MM:
+ r = su->scale / 100.0;
break;
- case (SCALE_VS):
- r = su->scale * 2 - 1;
+ case SCALE_PC:
+ r = su->scale * 10.0 / 6.0;
break;
- default:
+ case SCALE_PT:
+ r = su->scale * 10.0 / 72.0;
+ break;
+ case SCALE_VS:
+ r = su->scale * 2.0 - 1.0;
+ break;
+ case SCALE_EN:
+ /* FALLTHROUGH */
+ case SCALE_EM:
r = su->scale;
break;
+ default:
+ abort();
+ /* NOTREACHED */
}
return(r);
}
+#if HAVE_WCHAR
+static size_t
+locale_width(const struct termp *p, int c)
+{
+ int rc;
+
+ if (c == ASCII_NBRSP)
+ c = ' ';
+ rc = wcwidth(c);
+ if (rc < 0)
+ rc = 0;
+ return(rc);
+}
+
+static void
+locale_advance(struct termp *p, size_t len)
+{
+ size_t i;
+
+ for (i = 0; i < len; i++)
+ putwchar(L' ');
+}
+
+static void
+locale_endline(struct termp *p)
+{
+
+ putwchar(L'\n');
+}
+
+static void
+locale_letter(struct termp *p, int c)
+{
+
+ putwchar(c);
+}
+#endif
git.ckatri.com / mandoc.git / blobdiff