ncurses/trace/lib_traceatr.c

   1 /****************************************************************************
   2  * Copyright (c) 1998-2008,2009 Free Software Foundation, Inc.              *
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   9  * copies of the Software, and to permit persons to whom the Software is    *
  10  * furnished to do so, subject to the following conditions:                 *
  11  *                                                                          *
  12  * The above copyright notice and this permission notice shall be included  *
  13  * in all copies or substantial portions of the Software.                   *
  14  *                                                                          *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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  21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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  26  * authorization.                                                           *
  27  ****************************************************************************/
  28
  29 /****************************************************************************
  30  *  Author: Thomas Dickey                           1996-on                 *
  31  *     and: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  32  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  33  *     and: Juergen Pfeifer                                                 *
  34  ****************************************************************************/
  35
  36 /*
  37  *      lib_traceatr.c - Tracing/Debugging routines (attributes)
  38  */
  39
  40 #include <curses.priv.h>
  41
  42 MODULE_ID("$Id: lib_traceatr.c,v 1.65 2009/04/18 18:06:31 tom Exp $")
  43
  44 #define COLOR_OF(c) ((c < 0) ? "default" : (c > 7 ? color_of(c) : colors[c].name))
  45
  46 #ifdef TRACE
  47
  48 static const char l_brace[] = StringOf(L_BRACE);
  49 static const char r_brace[] = StringOf(R_BRACE);
  50
  51 #ifndef USE_TERMLIB
  52
  53 #define my_buffer _nc_globals.traceatr_color_buf
  54 #define my_select _nc_globals.traceatr_color_sel
  55 #define my_cached _nc_globals.traceatr_color_last
  56
  57 static char *
  58 color_of(int c)
  59 {
  60     if (c != my_cached) {
  61         my_cached = c;
  62         my_select = !my_select;
  63         if (c == COLOR_DEFAULT)
  64             strcpy(my_buffer[my_select], "default");
  65         else
  66             sprintf(my_buffer[my_select], "color%d", c);
  67     }
  68     return my_buffer[my_select];
  69 }
  70
  71 #undef my_buffer
  72 #undef my_select
  73 #endif /* !USE_TERMLIB */
  74
  75 NCURSES_EXPORT(char *)
  76 _traceattr2(int bufnum, chtype newmode)
  77 {
  78     static const struct {
  79         unsigned int val;
  80         const char *name;
  81     } names[] =
  82     {
  83         /* *INDENT-OFF* */
  84         { A_STANDOUT,           "A_STANDOUT" },
  85         { A_UNDERLINE,          "A_UNDERLINE" },
  86         { A_REVERSE,            "A_REVERSE" },
  87         { A_BLINK,              "A_BLINK" },
  88         { A_DIM,                "A_DIM" },
  89         { A_BOLD,               "A_BOLD" },
  90         { A_ALTCHARSET,         "A_ALTCHARSET" },
  91         { A_INVIS,              "A_INVIS" },
  92         { A_PROTECT,            "A_PROTECT" },
  93         { A_CHARTEXT,           "A_CHARTEXT" },
  94         { A_NORMAL,             "A_NORMAL" },
  95         { A_COLOR,              "A_COLOR" },
  96         /* *INDENT-ON* */
  97
  98     }
  99 #ifndef USE_TERMLIB
 100     ,
 101         colors[] =
 102     {
 103         /* *INDENT-OFF* */
 104         { COLOR_BLACK,          "COLOR_BLACK" },
 105         { COLOR_RED,            "COLOR_RED" },
 106         { COLOR_GREEN,          "COLOR_GREEN" },
 107         { COLOR_YELLOW,         "COLOR_YELLOW" },
 108         { COLOR_BLUE,           "COLOR_BLUE" },
 109         { COLOR_MAGENTA,        "COLOR_MAGENTA" },
 110         { COLOR_CYAN,           "COLOR_CYAN" },
 111         { COLOR_WHITE,          "COLOR_WHITE" },
 112         /* *INDENT-ON* */
 113
 114     }
 115 #endif /* !USE_TERMLIB */
 116     ;
 117     size_t n;
 118     char temp[80];
 119     char *result = _nc_trace_buf(bufnum, BUFSIZ);
 120
 121     if (result != 0) {
 122         unsigned save_nc_tracing = _nc_tracing;
 123
 124         _nc_tracing = 0;
 125
 126         strcpy(result, l_brace);
 127
 128         for (n = 0; n < SIZEOF(names); n++) {
 129             if ((newmode & names[n].val) != 0) {
 130                 if (result[1] != '\0')
 131                     result = _nc_trace_bufcat(bufnum, "|");
 132                 result = _nc_trace_bufcat(bufnum, names[n].name);
 133
 134                 if (names[n].val == A_COLOR) {
 135                     short pairnum = PAIR_NUMBER(newmode);
 136 #ifdef USE_TERMLIB
 137                     /* pair_content lives in libncurses */
 138                     (void) sprintf(temp, "{%d}", pairnum);
 139 #else
 140                     short fg, bg;
 141
 142                     if (pair_content(pairnum, &fg, &bg) == OK) {
 143                         (void) sprintf(temp,
 144                                        "{%d = {%s, %s}}",
 145                                        pairnum,
 146                                        COLOR_OF(fg),
 147                                        COLOR_OF(bg));
 148                     } else {
 149                         (void) sprintf(temp, "{%d}", pairnum);
 150                     }
 151 #endif
 152                     result = _nc_trace_bufcat(bufnum, temp);
 153                 }
 154             }
 155         }
 156         if (ChAttrOf(newmode) == A_NORMAL) {
 157             if (result != 0 && result[1] != '\0')
 158                 (void) _nc_trace_bufcat(bufnum, "|");
 159             (void) _nc_trace_bufcat(bufnum, "A_NORMAL");
 160         }
 161
 162         _nc_tracing = save_nc_tracing;
 163         result = _nc_trace_bufcat(bufnum, r_brace);
 164     }
 165     return result;
 166 }
 167
 168 NCURSES_EXPORT(char *)
 169 _traceattr(attr_t newmode)
 170 {
 171     return _traceattr2(0, newmode);
 172 }
 173
 174 /* Trace 'int' return-values */
 175 NCURSES_EXPORT(attr_t)
 176 _nc_retrace_attr_t(attr_t code)
 177 {
 178     T((T_RETURN("%s"), _traceattr(code)));
 179     return code;
 180 }
 181
 182 const char *
 183 _nc_altcharset_name(attr_t attr, chtype ch)
 184 {
 185     typedef struct {
 186         unsigned int val;
 187         const char *name;
 188     } ALT_NAMES;
 189 #if NCURSES_SP_FUNCS
 190     SCREEN *sp = CURRENT_SCREEN;
 191 #endif
 192     static const ALT_NAMES names[] =
 193     {
 194         {'l', "ACS_ULCORNER"},  /* upper left corner */
 195         {'m', "ACS_LLCORNER"},  /* lower left corner */
 196         {'k', "ACS_URCORNER"},  /* upper right corner */
 197         {'j', "ACS_LRCORNER"},  /* lower right corner */
 198         {'t', "ACS_LTEE"},      /* tee pointing right */
 199         {'u', "ACS_RTEE"},      /* tee pointing left */
 200         {'v', "ACS_BTEE"},      /* tee pointing up */
 201         {'w', "ACS_TTEE"},      /* tee pointing down */
 202         {'q', "ACS_HLINE"},     /* horizontal line */
 203         {'x', "ACS_VLINE"},     /* vertical line */
 204         {'n', "ACS_PLUS"},      /* large plus or crossover */
 205         {'o', "ACS_S1"},        /* scan line 1 */
 206         {'s', "ACS_S9"},        /* scan line 9 */
 207         {'`', "ACS_DIAMOND"},   /* diamond */
 208         {'a', "ACS_CKBOARD"},   /* checker board (stipple) */
 209         {'f', "ACS_DEGREE"},    /* degree symbol */
 210         {'g', "ACS_PLMINUS"},   /* plus/minus */
 211         {'~', "ACS_BULLET"},    /* bullet */
 212         {',', "ACS_LARROW"},    /* arrow pointing left */
 213         {'+', "ACS_RARROW"},    /* arrow pointing right */
 214         {'.', "ACS_DARROW"},    /* arrow pointing down */
 215         {'-', "ACS_UARROW"},    /* arrow pointing up */
 216         {'h', "ACS_BOARD"},     /* board of squares */
 217         {'i', "ACS_LANTERN"},   /* lantern symbol */
 218         {'0', "ACS_BLOCK"},     /* solid square block */
 219         {'p', "ACS_S3"},        /* scan line 3 */
 220         {'r', "ACS_S7"},        /* scan line 7 */
 221         {'y', "ACS_LEQUAL"},    /* less/equal */
 222         {'z', "ACS_GEQUAL"},    /* greater/equal */
 223         {'{', "ACS_PI"},        /* Pi */
 224         {'|', "ACS_NEQUAL"},    /* not equal */
 225         {'}', "ACS_STERLING"},  /* UK pound sign */
 226         {'\0', (char *) 0}
 227     };
 228
 229     const char *result = 0;
 230
 231     if ((attr & A_ALTCHARSET) && (acs_chars != 0)) {
 232         char *cp;
 233         char *found = 0;
 234         const ALT_NAMES *strp;
 235
 236         for (cp = acs_chars; cp[0] && cp[1]; cp += 2) {
 237             if (ChCharOf(cp[1]) == ChCharOf(ch)) {
 238                 found = cp;
 239                 /* don't exit from loop - there may be redefinitions */
 240             }
 241         }
 242
 243         if (found != 0) {
 244             ch = ChCharOf(*found);
 245             for (strp = names; strp->val; strp++)
 246                 if (strp->val == ch) {
 247                     result = strp->name;
 248                     break;
 249                 }
 250         }
 251     }
 252     return result;
 253 }
 254
 255 NCURSES_EXPORT(char *)
 256 _tracechtype2(int bufnum, chtype ch)
 257 {
 258     const char *found;
 259     char *result = _nc_trace_buf(bufnum, BUFSIZ);
 260
 261     if (result != 0) {
 262         strcpy(result, l_brace);
 263         if ((found = _nc_altcharset_name(ChAttrOf(ch), ch)) != 0) {
 264             (void) _nc_trace_bufcat(bufnum, found);
 265         } else
 266             (void) _nc_trace_bufcat(bufnum,
 267                                     _nc_tracechar(CURRENT_SCREEN,
 268                                                   (int) ChCharOf(ch)));
 269
 270         if (ChAttrOf(ch) != A_NORMAL) {
 271             (void) _nc_trace_bufcat(bufnum, " | ");
 272             (void) _nc_trace_bufcat(bufnum,
 273                                     _traceattr2(bufnum + 20, ChAttrOf(ch)));
 274         }
 275
 276         result = _nc_trace_bufcat(bufnum, r_brace);
 277     }
 278     return result;
 279 }
 280
 281 NCURSES_EXPORT(char *)
 282 _tracechtype(chtype ch)
 283 {
 284     return _tracechtype2(0, ch);
 285 }
 286
 287 /* Trace 'chtype' return-values */
 288 NCURSES_EXPORT(chtype)
 289 _nc_retrace_chtype(chtype code)
 290 {
 291     T((T_RETURN("%s"), _tracechtype(code)));
 292     return code;
 293 }
 294
 295 #if USE_WIDEC_SUPPORT
 296 NCURSES_EXPORT(char *)
 297 _tracecchar_t2(int bufnum, const cchar_t *ch)
 298 {
 299     char *result = _nc_trace_buf(bufnum, BUFSIZ);
 300     attr_t attr;
 301     const char *found;
 302
 303     if (result != 0) {
 304         strcpy(result, l_brace);
 305         if (ch != 0) {
 306             attr = AttrOfD(ch);
 307             if ((found = _nc_altcharset_name(attr, (chtype) CharOfD(ch))) != 0) {
 308                 (void) _nc_trace_bufcat(bufnum, found);
 309                 attr &= ~A_ALTCHARSET;
 310             } else if (isWidecExt(CHDEREF(ch))) {
 311                 (void) _nc_trace_bufcat(bufnum, "{NAC}");
 312                 attr &= ~A_CHARTEXT;
 313             } else {
 314                 PUTC_DATA;
 315                 int n;
 316
 317                 PUTC_INIT;
 318                 (void) _nc_trace_bufcat(bufnum, "{ ");
 319                 for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {
 320                     PUTC_ch = ch->chars[PUTC_i];
 321                     if (PUTC_ch == L'\0')
 322                         break;
 323                     PUTC_n = wcrtomb(PUTC_buf, ch->chars[PUTC_i], &PUT_st);
 324                     if (PUTC_n <= 0) {
 325                         if (PUTC_ch != L'\0') {
 326                             /* it could not be a multibyte sequence */
 327                             (void) _nc_trace_bufcat(bufnum,
 328                                                     _nc_tracechar(CURRENT_SCREEN,
 329                                                                   UChar(ch->chars[PUTC_i])));
 330                         }
 331                         break;
 332                     }
 333                     for (n = 0; n < PUTC_n; n++) {
 334                         if (n)
 335                             (void) _nc_trace_bufcat(bufnum, ", ");
 336                         (void) _nc_trace_bufcat(bufnum,
 337                                                 _nc_tracechar(CURRENT_SCREEN,
 338                                                               UChar(PUTC_buf[n])));
 339                     }
 340                 }
 341                 (void) _nc_trace_bufcat(bufnum, " }");
 342             }
 343             if (attr != A_NORMAL) {
 344                 (void) _nc_trace_bufcat(bufnum, " | ");
 345                 (void) _nc_trace_bufcat(bufnum, _traceattr2(bufnum + 20, attr));
 346             }
 347         }
 348
 349         result = _nc_trace_bufcat(bufnum, r_brace);
 350     }
 351     return result;
 352 }
 353
 354 NCURSES_EXPORT(char *)
 355 _tracecchar_t(const cchar_t *ch)
 356 {
 357     return _tracecchar_t2(0, ch);
 358 }
 359 #endif
 360
 361 #else
 362 EMPTY_MODULE(_nc_lib_traceatr)
 363 #endif /* TRACE */