1 /****************************************************************************
2 * Copyright (c) 2001-2006,2007 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
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 *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
25 * sale, use or other dealings in this Software without prior written *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Thomas E. Dickey 1996-on *
31 * and: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
32 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
33 ****************************************************************************/
36 * visbuf.c - Tracing/Debugging support routines
39 #define NEED_NCURSES_CH_T
40 #include <curses.priv.h>
45 MODULE_ID("$Id: visbuf.c,v 1.24 2007/06/02 18:55:10 tom Exp $")
47 #define NormalLen(len) (unsigned) ((len + 1) * 4)
48 #define WideLen(len) (unsigned) ((len + 1) * 4 * MB_CUR_MAX)
51 #define StringOf(ch) {ch, 0}
52 static const char d_quote[] = StringOf(D_QUOTE);
53 static const char l_brace[] = StringOf(L_BRACE);
54 static const char r_brace[] = StringOf(R_BRACE);
58 _nc_vischar(char *tp, unsigned c)
60 if (c == '"' || c == '\\') {
63 } else if (is7bits(c) && (isgraph(c) || c == ' ')) {
65 } else if (c == '\n') {
68 } else if (c == '\r') {
71 } else if (c == '\b') {
74 } else if (c == '\033') {
77 } else if (is7bits(c) && iscntrl(UChar(c))) {
82 sprintf(tp, "\\%03lo", (unsigned long) ChCharOf(c));
90 _nc_visbuf2n(int bufnum, const char *buf, int len)
98 if (buf == CANCELLED_STRING)
99 return ("(cancelled)");
105 tp = vbuf = _nc_trace_buf(bufnum, NormalLen(len));
108 static char *mybuf[4];
109 mybuf[bufnum] = typeRealloc(char, NormalLen(len), mybuf[bufnum]);
110 tp = vbuf = mybuf[bufnum];
114 while ((--len >= 0) && (c = *buf++) != '\0') {
115 tp = _nc_vischar(tp, UChar(c));
122 NCURSES_EXPORT(const char *)
123 _nc_visbuf2(int bufnum, const char *buf)
125 return _nc_visbuf2n(bufnum, buf, -1);
128 NCURSES_EXPORT(const char *)
129 _nc_visbuf(const char *buf)
131 return _nc_visbuf2(0, buf);
134 NCURSES_EXPORT(const char *)
135 _nc_visbufn(const char *buf, int len)
137 return _nc_visbuf2n(0, buf, len);
141 #if USE_WIDEC_SUPPORT
143 #if defined(USE_TERMLIB)
144 #define _nc_wchstrlen _my_wchstrlen
146 _nc_wchstrlen(const cchar_t *s)
149 while (CharOf(s[result]) != L'\0') {
157 _nc_viswbuf2n(int bufnum, const wchar_t *buf, int len)
170 tp = vbuf = _nc_trace_buf(bufnum, WideLen(len));
173 static char *mybuf[2];
174 mybuf[bufnum] = typeRealloc(char, WideLen(len), mybuf[bufnum]);
175 tp = vbuf = mybuf[bufnum];
179 while ((--len >= 0) && (c = *buf++) != '\0') {
180 char temp[CCHARW_MAX + 80];
181 int j = wctomb(temp, c), k;
183 sprintf(temp, "\\u%08X", (wint_t) c);
186 for (k = 0; k < j; ++k) {
187 tp = _nc_vischar(tp, UChar(temp[k]));
195 NCURSES_EXPORT(const char *)
196 _nc_viswbuf2(int bufnum, const wchar_t *buf)
198 return _nc_viswbuf2n(bufnum, buf, -1);
201 NCURSES_EXPORT(const char *)
202 _nc_viswbuf(const wchar_t *buf)
204 return _nc_viswbuf2(0, buf);
207 NCURSES_EXPORT(const char *)
208 _nc_viswbufn(const wchar_t *buf, int len)
210 return _nc_viswbuf2n(0, buf, len);
213 /* this special case is used for wget_wstr() */
214 NCURSES_EXPORT(const char *)
215 _nc_viswibuf(const wint_t *buf)
217 static wchar_t *mybuf;
218 static unsigned mylen;
221 for (n = 0; buf[n] != 0; ++n) ;
225 mybuf = typeRealloc(wchar_t, mylen, mybuf);
227 mybuf = typeMalloc(wchar_t, mylen);
229 for (n = 0; buf[n] != 0; ++n)
230 mybuf[n] = (wchar_t) buf[n];
232 return _nc_viswbuf2(0, mybuf);
234 #endif /* USE_WIDEC_SUPPORT */
236 /* use these functions for displaying parts of a line within a window */
237 NCURSES_EXPORT(const char *)
238 _nc_viscbuf2(int bufnum, const NCURSES_CH_T * buf, int len)
240 char *result = _nc_trace_buf(bufnum, BUFSIZ);
244 #if USE_WIDEC_SUPPORT
246 len = _nc_wchstrlen(buf);
247 #endif /* USE_WIDEC_SUPPORT */
250 * Display one or more strings followed by attributes.
253 while (first < len) {
254 attr_t attr = AttrOf(buf[first]);
258 for (j = first + 1; j < len; ++j) {
259 if (!SameAttrOf(buf[j], buf[first])) {
265 result = _nc_trace_bufcat(bufnum, l_brace);
266 result = _nc_trace_bufcat(bufnum, d_quote);
267 for (j = first; j <= last; ++j) {
268 found = _nc_altcharset_name(attr, (chtype) CharOf(buf[j]));
270 result = _nc_trace_bufcat(bufnum, found);
271 attr &= ~A_ALTCHARSET;
273 #if USE_WIDEC_SUPPORT
274 if (!isWidecExt(buf[j])) {
278 for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {
281 PUTC_ch = buf[j].chars[PUTC_i];
282 if (PUTC_ch == L'\0')
284 PUTC_n = wcrtomb(PUTC_buf, buf[j].chars[PUTC_i], &PUT_st);
287 for (k = 0; k < PUTC_n; k++) {
289 _nc_vischar(temp, UChar(PUTC_buf[k]));
290 result = _nc_trace_bufcat(bufnum, temp);
297 _nc_vischar(temp, UChar(buf[j]));
298 result = _nc_trace_bufcat(bufnum, temp);
300 #endif /* USE_WIDEC_SUPPORT */
302 result = _nc_trace_bufcat(bufnum, d_quote);
303 if (attr != A_NORMAL) {
304 result = _nc_trace_bufcat(bufnum, " | ");
305 result = _nc_trace_bufcat(bufnum, _traceattr2(bufnum + 20, attr));
307 result = _nc_trace_bufcat(bufnum, r_brace);
313 NCURSES_EXPORT(const char *)
314 _nc_viscbuf(const NCURSES_CH_T * buf, int len)
316 return _nc_viscbuf2(0, buf, len);