-/* $Id: term_ascii.c,v 1.3 2010/06/09 08:07:13 kristaps Exp $ */
+/* $Id: term_ascii.c,v 1.25 2014/04/20 16:46:05 schwarze Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * 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
#include <sys/types.h>
-#include <assert.h>
+#ifdef USE_WCHAR
+# include <locale.h>
+#endif
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
+#ifdef USE_WCHAR
+# include <wchar.h>
+#endif
+#include "mandoc.h"
+#include "mandoc_aux.h"
#include "out.h"
#include "term.h"
#include "main.h"
-static void ascii_endline(struct termp *);
-static void ascii_letter(struct termp *, char);
-static void ascii_begin(struct termp *);
+/*
+ * Sadly, this doesn't seem to be defined on systems even when they
+ * support it. For the time being, remove it and let those compiling
+ * the software decide for themselves what to use.
+ */
+#if 0
+#if ! defined(__STDC_ISO_10646__)
+# undef USE_WCHAR
+#endif
+#endif
+
+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_advance(struct termp *, size_t);
+static void ascii_begin(struct termp *);
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);
+
+#ifdef USE_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[4];
char *v;
+ struct termp *p;
- if (NULL == (p = term_alloc(TERMENC_ASCII)))
- return(NULL);
+ p = mandoc_calloc(1, sizeof(struct termp));
+
+ p->tabwidth = 5;
+ p->defrmargin = p->lastrmargin = 78;
- p->type = TERMTYPE_CHAR;
- p->letter = ascii_letter;
p->begin = ascii_begin;
p->end = ascii_end;
- p->endline = ascii_endline;
+ p->hspan = ascii_hspan;
+ 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;
+
+#ifdef USE_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] = "width";
- toks[1] = NULL;
+ toks[0] = "indent";
+ toks[1] = "width";
+ toks[2] = "mdoc";
+ toks[3] = 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;
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;
+}
+
+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, char c)
+ascii_letter(struct termp *p, int c)
{
-
+
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(' ');
}
+
+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.
+ */
+
+ switch (su->unit) {
+ case SCALE_CM:
+ r = 4 * su->scale;
+ break;
+ case SCALE_IN:
+ r = 10 * su->scale;
+ break;
+ case SCALE_PC:
+ r = (10 * su->scale) / 6;
+ break;
+ case SCALE_PT:
+ r = (10 * su->scale) / 72;
+ break;
+ case SCALE_MM:
+ r = su->scale / 1000;
+ break;
+ case SCALE_VS:
+ r = su->scale * 2 - 1;
+ break;
+ default:
+ r = su->scale;
+ break;
+ }
+
+ return(r);
+}
+
+#ifdef USE_WCHAR
+static size_t
+locale_width(const struct termp *p, int c)
+{
+ int rc;
+
+ return((rc = wcwidth(c)) < 0 ? 0 : 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