1 /****************************************************************************
2 * Copyright (c) 2001-2005,2006 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 1.21 2006/12/02 21:20:28 tom Exp $")
47 static const char d_quote[] = {D_QUOTE, 0};
48 static const char l_brace[] = {L_BRACE, 0};
49 static const char r_brace[] = {R_BRACE, 0};
52 _nc_vischar(char *tp, unsigned c)
54 if (c == '"' || c == '\\') {
57 } else if (is7bits(c) && (isgraph(c) || c == ' ')) {
59 } else if (c == '\n') {
62 } else if (c == '\r') {
65 } else if (c == '\b') {
68 } else if (c == '\033') {
71 } else if (is7bits(c) && iscntrl(UChar(c))) {
76 sprintf(tp, "\\%03lo", (unsigned long) ChCharOf(c));
84 _nc_visbuf2n(int bufnum, const char *buf, int len)
92 if (buf == CANCELLED_STRING)
93 return ("(cancelled)");
99 tp = vbuf = _nc_trace_buf(bufnum, (unsigned) (len * 4) + 5);
102 static char *mybuf[2];
103 mybuf[bufnum] = typeRealloc(char, (unsigned) (len * 4) + 5, mybuf[bufnum]);
104 tp = vbuf = mybuf[bufnum];
108 while ((--len >= 0) && (c = *buf++) != '\0') {
109 tp = _nc_vischar(tp, UChar(c));
116 NCURSES_EXPORT(const char *)
117 _nc_visbuf2(int bufnum, const char *buf)
119 return _nc_visbuf2n(bufnum, buf, -1);
122 NCURSES_EXPORT(const char *)
123 _nc_visbuf(const char *buf)
125 return _nc_visbuf2(0, buf);
128 NCURSES_EXPORT(const char *)
129 _nc_visbufn(const char *buf, int len)
131 return _nc_visbuf2n(0, buf, len);
135 #if USE_WIDEC_SUPPORT
137 #if defined(USE_TERMLIB)
138 #define _nc_wchstrlen _my_wchstrlen
140 _nc_wchstrlen(const cchar_t *s)
143 while (CharOf(s[result]) != L'\0') {
151 _nc_viswbuf2n(int bufnum, const wchar_t *buf, int len)
164 tp = vbuf = _nc_trace_buf(bufnum, (unsigned) (len * 4) + 5);
167 static char *mybuf[2];
168 mybuf[bufnum] = typeRealloc(char, (unsigned) (len * 4) + 5, mybuf[bufnum]);
169 tp = vbuf = mybuf[bufnum];
173 while ((--len >= 0) && (c = *buf++) != '\0') {
174 char temp[CCHARW_MAX + 80];
175 int j = wctomb(temp, c), k;
177 sprintf(temp, "\\u%08X", (wint_t) c);
180 for (k = 0; k < j; ++k) {
181 tp = _nc_vischar(tp, UChar(temp[k]));
189 NCURSES_EXPORT(const char *)
190 _nc_viswbuf2(int bufnum, const wchar_t *buf)
192 return _nc_viswbuf2n(bufnum, buf, -1);
195 NCURSES_EXPORT(const char *)
196 _nc_viswbuf(const wchar_t *buf)
198 return _nc_viswbuf2(0, buf);
201 NCURSES_EXPORT(const char *)
202 _nc_viswbufn(const wchar_t *buf, int len)
204 return _nc_viswbuf2n(0, buf, len);
207 /* this special case is used for wget_wstr() */
208 NCURSES_EXPORT(const char *)
209 _nc_viswibuf(const wint_t *buf)
211 static wchar_t *mybuf;
212 static unsigned mylen;
215 for (n = 0; buf[n] != 0; ++n) ;
219 mybuf = typeRealloc(wchar_t, mylen, mybuf);
221 mybuf = typeMalloc(wchar_t, mylen);
223 for (n = 0; buf[n] != 0; ++n)
224 mybuf[n] = (wchar_t) buf[n];
226 return _nc_viswbuf2(0, mybuf);
228 #endif /* USE_WIDEC_SUPPORT */
230 /* use these functions for displaying parts of a line within a window */
231 NCURSES_EXPORT(const char *)
232 _nc_viscbuf2(int bufnum, const NCURSES_CH_T * buf, int len)
234 char *result = _nc_trace_buf(bufnum, BUFSIZ);
238 #if USE_WIDEC_SUPPORT
240 len = _nc_wchstrlen(buf);
241 #endif /* USE_WIDEC_SUPPORT */
244 * Display one or more strings followed by attributes.
247 while (first < len) {
248 attr_t attr = AttrOf(buf[first]);
252 for (j = first + 1; j < len; ++j) {
253 if (!SameAttrOf(buf[j], buf[first])) {
259 result = _nc_trace_bufcat(bufnum, l_brace);
260 result = _nc_trace_bufcat(bufnum, d_quote);
261 for (j = first; j <= last; ++j) {
262 if ((found = _nc_altcharset_name(attr, (chtype) CharOf(buf[j]))) != 0) {
263 result = _nc_trace_bufcat(bufnum, found);
264 attr &= ~A_ALTCHARSET;
266 #if USE_WIDEC_SUPPORT
267 if (!isWidecExt(buf[j])) {
271 for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {
274 PUTC_ch = buf[j].chars[PUTC_i];
275 if (PUTC_ch == L'\0')
277 PUTC_n = wcrtomb(PUTC_buf, buf[j].chars[PUTC_i], &PUT_st);
280 for (k = 0; k < PUTC_n; k++) {
282 _nc_vischar(temp, UChar(PUTC_buf[k]));
283 result = _nc_trace_bufcat(bufnum, temp);
290 _nc_vischar(temp, UChar(buf[j]));
291 result = _nc_trace_bufcat(bufnum, temp);
293 #endif /* USE_WIDEC_SUPPORT */
295 result = _nc_trace_bufcat(bufnum, d_quote);
296 if (attr != A_NORMAL) {
297 result = _nc_trace_bufcat(bufnum, " | ");
298 result = _nc_trace_bufcat(bufnum, _traceattr2(bufnum + 20, attr));
300 result = _nc_trace_bufcat(bufnum, r_brace);
306 NCURSES_EXPORT(const char *)
307 _nc_viscbuf(const NCURSES_CH_T * buf, int len)
309 return _nc_viscbuf2(0, buf, len);