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https://github.com/Aigor44/ncursesw-morphos.git
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11ca5f6299
+ add configure option --enable-weak-symbols to turn on new feature. + add configure-check for availability of weak symbols. + modify linkage with pthread library to use weak symbols so that applications not linked to that library will not use the mutexes, etc. This relies on gcc, and may be platform-specific (patch by Dr Werner Fink). + add note to INSTALL to document limitation of renaming of tic library using the --with-ticlib configure option (report by Dr Werner Fink). + document (in manpage) why tputs does not detect I/O errors (prompted by comments by Samuel Thibault). + fix remaining warnings from Klocwork report.
193 lines
6.3 KiB
C
193 lines
6.3 KiB
C
/****************************************************************************
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* Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/****************************************************************************
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* Author: Thomas E. Dickey <dickey@clark.net> 1998 *
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****************************************************************************/
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#include <curses.priv.h>
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#include <ctype.h>
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#include <tic.h>
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MODULE_ID("$Id: comp_expand.c,v 1.20 2008/08/16 19:29:42 tom Exp $")
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static int
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trailing_spaces(const char *src)
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{
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while (*src == ' ')
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src++;
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return *src == 0;
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}
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/* this deals with differences over whether 0x7f and 0x80..0x9f are controls */
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#define REALCTL(s) (UChar(*(s)) < 127 && iscntrl(UChar(*(s))))
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#define REALPRINT(s) (UChar(*(s)) < 127 && isprint(UChar(*(s))))
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NCURSES_EXPORT(char *)
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_nc_tic_expand(const char *srcp, bool tic_format, int numbers)
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{
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static char *buffer;
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static size_t length;
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int bufp;
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const char *str = VALID_STRING(srcp) ? srcp : "\0\0";
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bool islong = (strlen(str) > 3);
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size_t need = (2 + strlen(str)) * 4;
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int ch;
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#if NO_LEAKS
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if (srcp == 0) {
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if (buffer != 0) {
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FreeAndNull(buffer);
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length = 0;
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}
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return 0;
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}
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#endif
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if (buffer == 0 || need > length) {
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if ((buffer = typeRealloc(char, length = need, buffer)) == 0)
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return 0;
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}
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bufp = 0;
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while ((ch = UChar(*str)) != 0) {
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if (ch == '%' && REALPRINT(str + 1)) {
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buffer[bufp++] = *str++;
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/*
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* Though the character literals are more compact, most
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* terminal descriptions use numbers and are not easy
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* to read in character-literal form.
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*/
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switch (numbers) {
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case -1:
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if (str[0] == S_QUOTE
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&& str[1] != '\\'
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&& REALPRINT(str + 1)
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&& str[2] == S_QUOTE) {
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sprintf(buffer + bufp, "{%d}", str[1]);
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bufp += strlen(buffer + bufp);
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str += 2;
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} else {
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buffer[bufp++] = *str;
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}
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break;
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/*
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* If we have a "%{number}", try to translate it into
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* a "%'char'" form, since that will run a little faster
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* when we're interpreting it. Also, having one form
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* for the constant makes it simpler to compare terminal
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* descriptions.
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*/
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case 1:
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if (str[0] == L_BRACE
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&& isdigit(UChar(str[1]))) {
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char *dst = 0;
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long value = strtol(str + 1, &dst, 0);
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if (dst != 0
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&& *dst == R_BRACE
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&& value < 127
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&& value != '\\' /* FIXME */
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&& isprint((int) value)) {
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ch = (int) value;
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buffer[bufp++] = S_QUOTE;
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if (ch == '\\'
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|| ch == S_QUOTE)
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buffer[bufp++] = '\\';
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buffer[bufp++] = (char) ch;
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buffer[bufp++] = S_QUOTE;
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str = dst;
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} else {
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buffer[bufp++] = *str;
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}
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} else {
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buffer[bufp++] = *str;
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}
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break;
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default:
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buffer[bufp++] = *str;
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break;
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}
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} else if (ch == 128) {
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buffer[bufp++] = '\\';
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buffer[bufp++] = '0';
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} else if (ch == '\033') {
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buffer[bufp++] = '\\';
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buffer[bufp++] = 'E';
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} else if (ch == '\\' && tic_format && (str == srcp || str[-1] != '^')) {
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buffer[bufp++] = '\\';
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buffer[bufp++] = '\\';
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} else if (ch == ' ' && tic_format && (str == srcp ||
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trailing_spaces(str))) {
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buffer[bufp++] = '\\';
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buffer[bufp++] = 's';
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} else if ((ch == ',' || ch == ':' || ch == '^') && tic_format) {
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buffer[bufp++] = '\\';
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buffer[bufp++] = (char) ch;
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} else if (REALPRINT(str)
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&& (ch != ','
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&& ch != ':'
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&& !(ch == '!' && !tic_format)
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&& ch != '^'))
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buffer[bufp++] = (char) ch;
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#if 0 /* FIXME: this would be more readable (in fact the whole 'islong' logic should be removed) */
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else if (ch == '\b') {
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buffer[bufp++] = '\\';
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buffer[bufp++] = 'b';
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} else if (ch == '\f') {
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buffer[bufp++] = '\\';
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buffer[bufp++] = 'f';
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} else if (ch == '\t' && islong) {
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buffer[bufp++] = '\\';
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buffer[bufp++] = 't';
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}
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#endif
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else if (ch == '\r' && (islong || (strlen(srcp) > 2 && str[1] == '\0'))) {
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buffer[bufp++] = '\\';
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buffer[bufp++] = 'r';
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} else if (ch == '\n' && islong) {
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buffer[bufp++] = '\\';
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buffer[bufp++] = 'n';
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}
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#define UnCtl(c) ((c) + '@')
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else if (REALCTL(str) && ch != '\\'
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&& (!islong || isdigit(UChar(str[1])))) {
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(void) sprintf(&buffer[bufp], "^%c", UnCtl(ch));
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bufp += 2;
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} else {
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(void) sprintf(&buffer[bufp], "\\%03o", ch);
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bufp += 4;
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}
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str++;
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}
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buffer[bufp] = '\0';
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return (buffer);
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}
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