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lib_traceatr.c

/****************************************************************************
 * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc.              *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
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 ****************************************************************************/

/****************************************************************************
 *  Author: Thomas Dickey 1996-2003                                         *
 *     and: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 ****************************************************************************/

/*
 *    lib_traceatr.c - Tracing/Debugging routines (attributes)
 */

#include <curses.priv.h>
#include <term.h>       /* acs_chars */

MODULE_ID("$Id: lib_traceatr.c,v 1.48 2004/01/25 22:31:38 tom Exp $")

#define COLOR_OF(c) (c < 0 || c > 7 ? "default" : colors[c].name)

#ifdef TRACE

static const char l_brace[] = {L_BRACE, 0};
static const char r_brace[] = {R_BRACE, 0};

NCURSES_EXPORT(char *)
_traceattr2(int bufnum, attr_t newmode)
{
    char *buf = _nc_trace_buf(bufnum, BUFSIZ);
    char temp[80];
    static const struct {
      unsigned int val;
      const char *name;
    } names[] =
    {
      /* *INDENT-OFF* */
      { A_STANDOUT,           "A_STANDOUT" },
      { A_UNDERLINE,          "A_UNDERLINE" },
      { A_REVERSE,            "A_REVERSE" },
      { A_BLINK,        "A_BLINK" },
      { A_DIM,          "A_DIM" },
      { A_BOLD,         "A_BOLD" },
      { A_ALTCHARSET,         "A_ALTCHARSET" },
      { A_INVIS,        "A_INVIS" },
      { A_PROTECT,            "A_PROTECT" },
      { A_CHARTEXT,           "A_CHARTEXT" },
      { A_NORMAL,       "A_NORMAL" },
      { A_COLOR,        "A_COLOR" },
      /* *INDENT-ON* */

    },
      colors[] =
    {
      /* *INDENT-OFF* */
      { COLOR_BLACK,          "COLOR_BLACK" },
      { COLOR_RED,            "COLOR_RED" },
      { COLOR_GREEN,          "COLOR_GREEN" },
      { COLOR_YELLOW,         "COLOR_YELLOW" },
      { COLOR_BLUE,           "COLOR_BLUE" },
      { COLOR_MAGENTA,  "COLOR_MAGENTA" },
      { COLOR_CYAN,           "COLOR_CYAN" },
      { COLOR_WHITE,          "COLOR_WHITE" },
      /* *INDENT-ON* */

    };
    size_t n;
    unsigned save_nc_tracing = _nc_tracing;
    _nc_tracing = 0;

    strcpy(buf, l_brace);

    for (n = 0; n < SIZEOF(names); n++) {
      if ((newmode & names[n].val) != 0) {
          if (buf[1] != '\0')
            buf = _nc_trace_bufcat(bufnum, "|");
          buf = _nc_trace_bufcat(bufnum, names[n].name);

          if (names[n].val == A_COLOR) {
            short pairnum = PAIR_NUMBER(newmode);
            short fg, bg;

            if (pair_content(pairnum, &fg, &bg) == OK) {
                (void) sprintf(temp,
                           "{%d = {%s, %s}}",
                           pairnum,
                           COLOR_OF(fg),
                           COLOR_OF(bg));
            } else {
                (void) sprintf(temp, "{%d}", pairnum);
            }
            buf = _nc_trace_bufcat(bufnum, temp);
          }
      }
    }
    if (ChAttrOf(newmode) == A_NORMAL) {
      if (buf[1] != '\0')
          (void) _nc_trace_bufcat(bufnum, "|");
      (void) _nc_trace_bufcat(bufnum, "A_NORMAL");
    }

    _nc_tracing = save_nc_tracing;
    return (_nc_trace_bufcat(bufnum, r_brace));
}

NCURSES_EXPORT(char *)
_traceattr(attr_t newmode)
{
    return _traceattr2(0, newmode);
}

/* Trace 'int' return-values */
NCURSES_EXPORT(attr_t)
_nc_retrace_attr_t(attr_t code)
{
    T((T_RETURN("%s"), _traceattr(code)));
    return code;
}

const char *
_nc_altcharset_name(attr_t attr, chtype ch)
{
    const char *result = 0;

    if ((attr & A_ALTCHARSET) && (acs_chars != 0)) {
      char *cp;
      char *found = 0;
      static const struct {
          unsigned int val;
          const char *name;
      } names[] =
      {
          /* *INDENT-OFF* */
          { 'l', "ACS_ULCORNER" },  /* upper left corner */
          { 'm', "ACS_LLCORNER" },  /* lower left corner */
          { 'k', "ACS_URCORNER" },  /* upper right corner */
          { 'j', "ACS_LRCORNER" },  /* lower right corner */
          { 't', "ACS_LTEE" },      /* tee pointing right */
          { 'u', "ACS_RTEE" },      /* tee pointing left */
          { 'v', "ACS_BTEE" },      /* tee pointing up */
          { 'w', "ACS_TTEE" },      /* tee pointing down */
          { 'q', "ACS_HLINE" },     /* horizontal line */
          { 'x', "ACS_VLINE" },     /* vertical line */
          { 'n', "ACS_PLUS" },      /* large plus or crossover */
          { 'o', "ACS_S1" },        /* scan line 1 */
          { 's', "ACS_S9" },        /* scan line 9 */
          { '`', "ACS_DIAMOND" },   /* diamond */
          { 'a', "ACS_CKBOARD" },   /* checker board (stipple) */
          { 'f', "ACS_DEGREE" },    /* degree symbol */
          { 'g', "ACS_PLMINUS" },   /* plus/minus */
          { '~', "ACS_BULLET" },    /* bullet */
          { ',', "ACS_LARROW" },    /* arrow pointing left */
          { '+', "ACS_RARROW" },    /* arrow pointing right */
          { '.', "ACS_DARROW" },    /* arrow pointing down */
          { '-', "ACS_UARROW" },    /* arrow pointing up */
          { 'h', "ACS_BOARD" },     /* board of squares */
          { 'i', "ACS_LANTERN" },   /* lantern symbol */
          { '0', "ACS_BLOCK" },     /* solid square block */
          { 'p', "ACS_S3" },        /* scan line 3 */
          { 'r', "ACS_S7" },        /* scan line 7 */
          { 'y', "ACS_LEQUAL" },    /* less/equal */
          { 'z', "ACS_GEQUAL" },    /* greater/equal */
          { '{', "ACS_PI" },        /* Pi */
          { '|', "ACS_NEQUAL" },    /* not equal */
          { '}', "ACS_STERLING" },  /* UK pound sign */
          { '\0', (char *) 0 }
            /* *INDENT-OFF* */
      },
          *sp;

      for (cp = acs_chars; cp[0] && cp[1]; cp += 2) {
          if (ChCharOf(cp[1]) == ChCharOf(ch)) {
            found = cp;
            /* don't exit from loop - there may be redefinitions */
          }
      }

      if (found != 0) {
          ch = ChCharOf(*found);
          for (sp = names; sp->val; sp++)
            if (sp->val == ch) {
                result = sp->name;
                break;
            }
      }
    }
    return result;
}

NCURSES_EXPORT(char *)
_tracechtype2(int bufnum, chtype ch)
{
    const char *found;

    strcpy(_nc_trace_buf(bufnum, BUFSIZ), l_brace);
    if ((found = _nc_altcharset_name(ChAttrOf(ch), ch)) != 0) {
      (void) _nc_trace_bufcat(bufnum, found);
    } else
      (void) _nc_trace_bufcat(bufnum, _tracechar(ChCharOf(ch)));

    if (ChAttrOf(ch) != A_NORMAL) {
      (void) _nc_trace_bufcat(bufnum, " | ");
      (void) _nc_trace_bufcat(bufnum,
            _traceattr2(bufnum + 20, ChAttrOf(ch)));
    }

    return (_nc_trace_bufcat(bufnum, r_brace));
}

NCURSES_EXPORT(char *)
_tracechtype (chtype ch)
{
    return _tracechtype2(0, ch);
}

/* Trace 'chtype' return-values */
NCURSES_EXPORT(chtype)
_nc_retrace_chtype (chtype code)
{
    T((T_RETURN("%s"), _tracechtype(code)));
    return code;
}

#if USE_WIDEC_SUPPORT
NCURSES_EXPORT(char *)
_tracecchar_t2 (int bufnum, const cchar_t *ch)
{
    char *buf = _nc_trace_buf(bufnum, BUFSIZ);
    attr_t attr;
    const char *found;

    strcpy(buf, l_brace);
    if (ch != 0) {
      attr = AttrOfD(ch);
      if ((found = _nc_altcharset_name(attr, CharOfD(ch))) != 0) {
          (void) _nc_trace_bufcat(bufnum, found);
          attr &= ~A_ALTCHARSET;
      } else if (isnac(CHDEREF(ch))) {
          (void) _nc_trace_bufcat(bufnum, "{NAC}");
      } else {
          PUTC_DATA;
          int n;

          PUTC_INIT;
          (void) _nc_trace_bufcat(bufnum, "{ ");
          do {
            PUTC_ch = PUTC_i < CCHARW_MAX ? ch->chars[PUTC_i] : L'\0';
            PUTC_n = wcrtomb(PUTC_buf, ch->chars[PUTC_i], &PUT_st);
            if (PUTC_ch == L'\0')
                --PUTC_n;
            if (PUTC_n <= 0) {
                if (PUTC_ch != L'\0') {
                  /* it could not be a multibyte sequence */
                  (void) _nc_trace_bufcat(bufnum, _tracechar(UChar(ch->chars[PUTC_i])));
                }
                break;
            }
            for (n = 0; n < PUTC_n; n++) {
                if (n)
                  (void) _nc_trace_bufcat(bufnum, ", ");
                (void) _nc_trace_bufcat(bufnum, _tracechar(UChar(PUTC_buf[n])));
            }
            ++PUTC_i;
          } while (PUTC_ch != L'\0');
          (void) _nc_trace_bufcat(bufnum, " }");
      }
      if (attr != A_NORMAL) {
          (void) _nc_trace_bufcat(bufnum, " | ");
          (void) _nc_trace_bufcat(bufnum, _traceattr2(bufnum + 20, attr));
      }
    }

    return (_nc_trace_bufcat(bufnum, r_brace));
}

NCURSES_EXPORT(char *)
_tracecchar_t (const cchar_t *ch)
{
    return _tracecchar_t2(0, ch);
}
#endif

#else
empty_module(_nc_lib_traceatr)
#endif /* TRACE */

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