]> git.cameronkatri.com Git - mandoc.git/blobdiff - term_ascii.c
Grrr, patch(1) merged the new function to the wrong place in this file.
[mandoc.git] / term_ascii.c
index 374a2a02e0ca0ab16b70c150419db337b9ddd97a..3b1a36f6cd96aef1bcbf31082c9369edc36fd79c 100644 (file)
@@ -1,6 +1,7 @@
-/*     $Id: term_ascii.c,v 1.12 2011/01/25 17:32:04 kristaps Exp $ */
+/*     $Id: term_ascii.c,v 1.36 2014/10/26 18:12:28 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 *, char);
+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 *, char);
+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;
                }
@@ -81,16 +130,49 @@ ascii_alloc(char *outopts)
        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, char c)
+ascii_width(const struct termp *p, int c)
 {
 
        return(1);
 }
 
-
 void
 ascii_free(void *arg)
 {
@@ -98,17 +180,13 @@ 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)
 {
-       
-       /* LINTED */
+
        putchar(c);
 }
 
-
 static void
 ascii_begin(struct termp *p)
 {
@@ -116,7 +194,6 @@ ascii_begin(struct termp *p)
        (*p->headf)(p, p->argf);
 }
 
-
 static void
 ascii_end(struct termp *p)
 {
@@ -124,8 +201,6 @@ ascii_end(struct termp *p)
        (*p->footf)(p, p->argf);
 }
 
-
-/* ARGSUSED */
 static void
 ascii_endline(struct termp *p)
 {
@@ -133,54 +208,174 @@ 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);
 }
 
+const char *
+ascii_uc2str(int uc)
+{
+       static const char nbrsp[2] = { ASCII_NBRSP, '\0' };
+       static const char *tab[] = {
+       "<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
+       "<BS>", "\t",   "<LF>", "<VT>", "<FF>", "<CR>", "<SO>", "<SI>",
+       "<DLE>","<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>",
+       "<CAN>","<EM>", "<SUB>","<ESC>","<FS>", "<GS>", "<RS>", "<US>",
+       " ",    "!",    "\"",   "#",    "$",    "%",    "&",    "'",
+       "(",    ")",    "*",    "+",    ",",    "-",    ".",    "/",
+       "0",    "1",    "2",    "3",    "4",    "5",    "6",    "7",
+       "8",    "9",    ":",    ";",    "<",    "=",    ">",    "?",
+       "@",    "A",    "B",    "C",    "D",    "E",    "F",    "G",
+       "H",    "I",    "J",    "K",    "L",    "M",    "N",    "O",
+       "P",    "Q",    "R",    "S",    "T",    "U",    "V",    "W",
+       "X",    "Y",    "Z",    "[",    "\\",   "]",    "^",    "_",
+       "`",    "a",    "b",    "c",    "d",    "e",    "f",    "g",
+       "h",    "i",    "j",    "k",    "l",    "m",    "n",    "o",
+       "p",    "q",    "r",    "s",    "t",    "u",    "v",    "w",
+       "x",    "y",    "z",    "{",    "|",    "}",    "~",    "<DEL>",
+       "<80>", "<81>", "<82>", "<83>", "<84>", "<85>", "<86>", "<87>",
+       "<88>", "<89>", "<8A>", "<8B>", "<8C>", "<8D>", "<8E>", "<8F>",
+       "<90>", "<91>", "<92>", "<93>", "<94>", "<95>", "<96>", "<97>",
+       "<99>", "<99>", "<9A>", "<9B>", "<9C>", "<9D>", "<9E>", "<9F>",
+       nbrsp,  "!",    "c",    "GBP",  "$?",   "Y=",   "|",    "<sec>",
+       "\"",   "(C)",  "a.",   "<<",   "<not>","",     "(R)",  "-",
+       "<deg>","+-",   "^2",   "^3",   "'",    "<my>", "<par>","*",
+       ",",    "^1",   "o.",   ">>",   "1/4",  "1/2",  "3/4",  "?",
+       "A",    "A",    "A",    "A",    "Ae",   "Aa",   "AE",   "C",
+       "E",    "E",    "E",    "E",    "I",    "I",    "I",    "I",
+       "D",    "N",    "O",    "O",    "O",    "O",    "Oe",   "*",
+       "Oe",   "U",    "U",    "U",    "Ue",   "Y",    "Th",   "ss",
+       "a",    "a",    "a",    "a",    "ae",   "aa",   "ae",   "c",
+       "e",    "e",    "e",    "e",    "i",    "i",    "i",    "i",
+       "d",    "n",    "o",    "o",    "o",    "o",    "oe",   "/",
+       "oe",   "u",    "u",    "u",    "ue",   "y",    "th",   "y",
+       "A",    "a",    "A",    "a",    "A",    "a",    "C",    "c",
+       "C",    "c",    "C",    "c",    "C",    "c",    "D",    "d",
+       "D",    "d",    "E",    "e",    "E",    "e",    "E",    "e",
+       "E",    "e",    "E",    "e",    "G",    "g",    "G",    "g",
+       "G",    "g",    "G",    "g",    "H",    "h",    "H",    "h",
+       "I",    "i",    "I",    "i",    "I",    "i",    "I",    "i",
+       "I",    "i",    "IJ",   "ij",   "J",    "j",    "K",    "k",
+       "q",    "L",    "l",    "L",    "l",    "L",    "l",    "L",
+       "l",    "L",    "l",    "N",    "n",    "N",    "n",    "N",
+       "n",    "'n",   "Ng",   "ng",   "O",    "o",    "O",    "o",
+       "O",    "o",    "OE",   "oe",   "R",    "r",    "R",    "r",
+       "R",    "r",    "S",    "s",    "S",    "s",    "S",    "s",
+       "S",    "s",    "T",    "t",    "T",    "t",    "T",    "t",
+       "U",    "u",    "U",    "u",    "U",    "u",    "U",    "u",
+       "U",    "u",    "U",    "u",    "W",    "w",    "Y",    "y",
+       "Y",    "Z",    "z",    "Z",    "z",    "Z",    "z",    "s",
+       "b",    "B",    "B",    "b",    "6",    "6",    "O",    "C",
+       "c",    "D",    "D",    "D",    "d",    "d",    "3",    "@",
+       "E",    "F",    "f",    "G",    "G",    "hv",   "I",    "I",
+       "K",    "k",    "l",    "l",    "W",    "N",    "n",    "O",
+       "O",    "o",    "OI",   "oi",   "P",    "p",    "YR",   "2",
+       "2",    "SH",   "sh",   "t",    "T",    "t",    "T",    "U",
+       "u",    "Y",    "V",    "Y",    "y",    "Z",    "z",    "ZH",
+       "ZH",   "zh",   "zh",   "2",    "5",    "5",    "ts",   "w",
+       "|",    "||",   "|=",   "!",    "DZ",   "Dz",   "dz",   "LJ",
+       "Lj",   "lj",   "NJ",   "Nj",   "nj",   "A",    "a",    "I",
+       "i",    "O",    "o",    "U",    "u",    "U",    "u",    "U",
+       "u",    "U",    "u",    "U",    "u",    "@",    "A",    "a",
+       "A",    "a",    "AE",   "ae",   "G",    "g",    "G",    "g",
+       "K",    "k",    "O",    "o",    "O",    "o",    "ZH",   "zh",
+       "j",    "DZ",   "D",    "dz",   "G",    "g",    "HV",   "W",
+       "N",    "n",    "A",    "a",    "AE",   "ae",   "O",    "o"};
+
+       if (uc < 0)
+               return("<?>");
+       if ((size_t)uc < sizeof(tab)/sizeof(tab[0]))
+               return(tab[uc]);
+       return(mchars_uc2str(uc));
+}
+
+#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