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authorRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
committerRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
commita388f199193767bacbb38b172ab89cb84369736c (patch)
treea1816f5667d2280b970ca44e407bac8cc4496c0a /ncurses/tinfo/comp_scan.c
parentaa59d4d4c5dda7e1c6f9dc0cc6edc58992a525c7 (diff)
downloadsrc-a388f199193767bacbb38b172ab89cb84369736c.tar.gz
src-a388f199193767bacbb38b172ab89cb84369736c.zip
- Flatten the vendor area
Notes
Notes: svn path=/vendor/ncurses/dist/; revision=184786
Diffstat (limited to 'ncurses/tinfo/comp_scan.c')
-rw-r--r--ncurses/tinfo/comp_scan.c915
1 files changed, 915 insertions, 0 deletions
diff --git a/ncurses/tinfo/comp_scan.c b/ncurses/tinfo/comp_scan.c
new file mode 100644
index 000000000000..e937f7eb5ada
--- /dev/null
+++ b/ncurses/tinfo/comp_scan.c
@@ -0,0 +1,915 @@
+/****************************************************************************
+ * Copyright (c) 1998-2005,2006 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. *
+ * *
+ * 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 *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
+ * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996 on *
+ ****************************************************************************/
+
+/*
+ * comp_scan.c --- Lexical scanner for terminfo compiler.
+ *
+ * _nc_reset_input()
+ * _nc_get_token()
+ * _nc_panic_mode()
+ * int _nc_syntax;
+ * int _nc_curr_line;
+ * long _nc_curr_file_pos;
+ * long _nc_comment_start;
+ * long _nc_comment_end;
+ */
+
+#include <curses.priv.h>
+
+#include <ctype.h>
+#include <term_entry.h>
+#include <tic.h>
+
+MODULE_ID("$Id: comp_scan.c,v 1.78 2006/12/16 19:17:01 tom Exp $")
+
+/*
+ * Maximum length of string capability we'll accept before raising an error.
+ * Yes, there is a real capability in /etc/termcap this long, an "is".
+ */
+#define MAXCAPLEN 600
+
+#define iswhite(ch) (ch == ' ' || ch == '\t')
+
+NCURSES_EXPORT_VAR(int)
+_nc_syntax = 0; /* termcap or terminfo? */
+NCURSES_EXPORT_VAR(long)
+_nc_curr_file_pos = 0; /* file offset of current line */
+NCURSES_EXPORT_VAR(long)
+_nc_comment_start = 0; /* start of comment range before name */
+NCURSES_EXPORT_VAR(long)
+_nc_comment_end = 0; /* end of comment range before name */
+NCURSES_EXPORT_VAR(long)
+_nc_start_line = 0; /* start line of current entry */
+
+NCURSES_EXPORT_VAR(struct token)
+_nc_curr_token =
+{
+ 0, 0, 0
+};
+
+/*****************************************************************************
+ *
+ * Token-grabbing machinery
+ *
+ *****************************************************************************/
+
+static bool first_column; /* See 'next_char()' below */
+static bool had_newline;
+static char separator; /* capability separator */
+static int pushtype; /* type of pushback token */
+static char *pushname;
+
+#if NCURSES_EXT_FUNCS
+NCURSES_EXPORT_VAR(bool)
+_nc_disable_period = FALSE; /* used by tic -a option */
+#endif
+
+/*****************************************************************************
+ *
+ * Character-stream handling
+ *
+ *****************************************************************************/
+
+#define LEXBUFSIZ 1024
+
+static char *bufptr; /* otherwise, the input buffer pointer */
+static char *bufstart; /* start of buffer so we can compute offsets */
+static FILE *yyin; /* scanner's input file descriptor */
+
+/*
+ * _nc_reset_input()
+ *
+ * Resets the input-reading routines. Used on initialization,
+ * or after a seek has been done. Exactly one argument must be
+ * non-null.
+ */
+
+NCURSES_EXPORT(void)
+_nc_reset_input(FILE *fp, char *buf)
+{
+ pushtype = NO_PUSHBACK;
+ if (pushname != 0)
+ pushname[0] = '\0';
+ yyin = fp;
+ bufstart = bufptr = buf;
+ _nc_curr_file_pos = 0L;
+ if (fp != 0)
+ _nc_curr_line = 0;
+ _nc_curr_col = 0;
+}
+
+/*
+ * int last_char()
+ *
+ * Returns the final nonblank character on the current input buffer
+ */
+static int
+last_char(void)
+{
+ size_t len = strlen(bufptr);
+ while (len--) {
+ if (!isspace(UChar(bufptr[len])))
+ return bufptr[len];
+ }
+ return 0;
+}
+
+/*
+ * int next_char()
+ *
+ * Returns the next character in the input stream. Comments and leading
+ * white space are stripped.
+ *
+ * The global state variable 'firstcolumn' is set TRUE if the character
+ * returned is from the first column of the input line.
+ *
+ * The global variable _nc_curr_line is incremented for each new line.
+ * The global variable _nc_curr_file_pos is set to the file offset of the
+ * beginning of each line.
+ */
+
+static int
+next_char(void)
+{
+ static char *result;
+ static size_t allocated;
+ int the_char;
+
+ if (!yyin) {
+ if (result != 0) {
+ FreeAndNull(result);
+ FreeAndNull(pushname);
+ allocated = 0;
+ }
+ /*
+ * An string with an embedded null will truncate the input. This is
+ * intentional (we don't read binary files here).
+ */
+ if (bufptr == 0 || *bufptr == '\0')
+ return (EOF);
+ if (*bufptr == '\n') {
+ _nc_curr_line++;
+ _nc_curr_col = 0;
+ } else if (*bufptr == '\t') {
+ _nc_curr_col = (_nc_curr_col | 7);
+ }
+ } else if (!bufptr || !*bufptr) {
+ /*
+ * In theory this could be recoded to do its I/O one character at a
+ * time, saving the buffer space. In practice, this turns out to be
+ * quite hard to get completely right. Try it and see. If you
+ * succeed, don't forget to hack push_back() correspondingly.
+ */
+ size_t used;
+ size_t len;
+
+ do {
+ bufstart = 0;
+ used = 0;
+ do {
+ if (used + (LEXBUFSIZ / 4) >= allocated) {
+ allocated += (allocated + LEXBUFSIZ);
+ result = typeRealloc(char, allocated, result);
+ if (result == 0)
+ return (EOF);
+ }
+ if (used == 0)
+ _nc_curr_file_pos = ftell(yyin);
+
+ if (fgets(result + used, (int) (allocated - used), yyin) != 0) {
+ bufstart = result;
+ if (used == 0) {
+ _nc_curr_line++;
+ _nc_curr_col = 0;
+ }
+ } else {
+ if (used != 0)
+ strcat(result, "\n");
+ }
+ if ((bufptr = bufstart) != 0) {
+ used = strlen(bufptr);
+ while (iswhite(*bufptr)) {
+ if (*bufptr == '\t') {
+ _nc_curr_col = (_nc_curr_col | 7) + 1;
+ } else {
+ _nc_curr_col++;
+ }
+ bufptr++;
+ }
+
+ /*
+ * Treat a trailing <cr><lf> the same as a <newline> so we
+ * can read files on OS/2, etc.
+ */
+ if ((len = strlen(bufptr)) > 1) {
+ if (bufptr[len - 1] == '\n'
+ && bufptr[len - 2] == '\r') {
+ len--;
+ bufptr[len - 1] = '\n';
+ bufptr[len] = '\0';
+ }
+ }
+ } else {
+ return (EOF);
+ }
+ } while (bufptr[len - 1] != '\n'); /* complete a line */
+ } while (result[0] == '#'); /* ignore comments */
+ } else if (*bufptr == '\t') {
+ _nc_curr_col = (_nc_curr_col | 7);
+ }
+
+ first_column = (bufptr == bufstart);
+ if (first_column)
+ had_newline = FALSE;
+
+ _nc_curr_col++;
+ the_char = *bufptr++;
+ return UChar(the_char);
+}
+
+static void
+push_back(char c)
+/* push a character back onto the input stream */
+{
+ if (bufptr == bufstart)
+ _nc_syserr_abort("Can't backspace off beginning of line");
+ *--bufptr = c;
+ _nc_curr_col--;
+}
+
+static long
+stream_pos(void)
+/* return our current character position in the input stream */
+{
+ return (yyin ? ftell(yyin) : (bufptr ? bufptr - bufstart : 0));
+}
+
+static bool
+end_of_stream(void)
+/* are we at end of input? */
+{
+ return ((yyin ? feof(yyin) : (bufptr && *bufptr == '\0'))
+ ? TRUE : FALSE);
+}
+
+/* Assume we may be looking at a termcap-style continuation */
+static NCURSES_INLINE int
+eat_escaped_newline(int ch)
+{
+ if (ch == '\\')
+ while ((ch = next_char()) == '\n' || iswhite(ch))
+ continue;
+ return ch;
+}
+
+/*
+ * int
+ * get_token()
+ *
+ * Scans the input for the next token, storing the specifics in the
+ * global structure 'curr_token' and returning one of the following:
+ *
+ * NAMES A line beginning in column 1. 'name'
+ * will be set to point to everything up to but
+ * not including the first separator on the line.
+ * BOOLEAN An entry consisting of a name followed by
+ * a separator. 'name' will be set to point to
+ * the name of the capability.
+ * NUMBER An entry of the form
+ * name#digits,
+ * 'name' will be set to point to the capability
+ * name and 'valnumber' to the number given.
+ * STRING An entry of the form
+ * name=characters,
+ * 'name' is set to the capability name and
+ * 'valstring' to the string of characters, with
+ * input translations done.
+ * CANCEL An entry of the form
+ * name@,
+ * 'name' is set to the capability name and
+ * 'valnumber' to -1.
+ * EOF The end of the file has been reached.
+ *
+ * A `separator' is either a comma or a semicolon, depending on whether
+ * we are in termcap or terminfo mode.
+ *
+ */
+
+NCURSES_EXPORT(int)
+_nc_get_token(bool silent)
+{
+ static const char terminfo_punct[] = "@%&*!#";
+ static char *buffer;
+
+ char *after_list;
+ char *after_name;
+ char *numchk;
+ char *ptr;
+ char *s;
+ char numbuf[80];
+ int ch;
+ int dot_flag = FALSE;
+ int type;
+ long number;
+ long token_start;
+ unsigned found;
+#ifdef TRACE
+ int old_line;
+ int old_col;
+#endif
+
+ if (pushtype != NO_PUSHBACK) {
+ int retval = pushtype;
+
+ _nc_set_type(pushname != 0 ? pushname : "");
+ DEBUG(3, ("pushed-back token: `%s', class %d",
+ _nc_curr_token.tk_name, pushtype));
+
+ pushtype = NO_PUSHBACK;
+ if (pushname != 0)
+ pushname[0] = '\0';
+
+ /* currtok wasn't altered by _nc_push_token() */
+ return (retval);
+ }
+
+ if (end_of_stream()) {
+ yyin = 0;
+ next_char(); /* frees its allocated memory */
+ if (buffer != 0) {
+ if (_nc_curr_token.tk_name == buffer)
+ _nc_curr_token.tk_name = 0;
+ FreeAndNull(buffer);
+ }
+ return (EOF);
+ }
+
+ start_token:
+ token_start = stream_pos();
+ while ((ch = next_char()) == '\n' || iswhite(ch)) {
+ if (ch == '\n')
+ had_newline = TRUE;
+ continue;
+ }
+
+ ch = eat_escaped_newline(ch);
+
+#ifdef TRACE
+ old_line = _nc_curr_line;
+ old_col = _nc_curr_col;
+#endif
+ if (ch == EOF)
+ type = EOF;
+ else {
+ /* if this is a termcap entry, skip a leading separator */
+ if (separator == ':' && ch == ':')
+ ch = next_char();
+
+ if (ch == '.'
+#if NCURSES_EXT_FUNCS
+ && !_nc_disable_period
+#endif
+ ) {
+ dot_flag = TRUE;
+ DEBUG(8, ("dot-flag set"));
+
+ while ((ch = next_char()) == '.' || iswhite(ch))
+ continue;
+ }
+
+ if (ch == EOF) {
+ type = EOF;
+ goto end_of_token;
+ }
+
+ /* have to make some punctuation chars legal for terminfo */
+ if (!isalnum(UChar(ch))
+#if NCURSES_EXT_FUNCS
+ && !(ch == '.' && _nc_disable_period)
+#endif
+ && !strchr(terminfo_punct, (char) ch)) {
+ if (!silent)
+ _nc_warning("Illegal character (expected alphanumeric or %s) - '%s'",
+ terminfo_punct, unctrl((chtype) ch));
+ _nc_panic_mode(separator);
+ goto start_token;
+ }
+
+ if (buffer == 0)
+ buffer = typeMalloc(char, MAX_ENTRY_SIZE);
+
+#ifdef TRACE
+ old_line = _nc_curr_line;
+ old_col = _nc_curr_col;
+#endif
+ ptr = buffer;
+ *(ptr++) = ch;
+
+ if (first_column) {
+ _nc_comment_start = token_start;
+ _nc_comment_end = _nc_curr_file_pos;
+ _nc_start_line = _nc_curr_line;
+
+ _nc_syntax = ERR;
+ after_name = 0;
+ after_list = 0;
+ while ((ch = next_char()) != '\n') {
+ if (ch == EOF) {
+ _nc_err_abort(MSG_NO_INPUTS);
+ } else if (ch == '|') {
+ after_list = ptr;
+ if (after_name == 0)
+ after_name = ptr;
+ } else if (ch == ':' && last_char() != ',') {
+ _nc_syntax = SYN_TERMCAP;
+ separator = ':';
+ break;
+ } else if (ch == ',') {
+ _nc_syntax = SYN_TERMINFO;
+ separator = ',';
+ /*
+ * If we did not see a '|', then we found a name with no
+ * aliases or description.
+ */
+ if (after_name == 0)
+ break;
+ /*
+ * If we see a comma, we assume this is terminfo unless we
+ * subsequently run into a colon. But we don't stop
+ * looking for a colon until hitting a newline. This
+ * allows commas to be embedded in description fields of
+ * either syntax.
+ */
+ } else
+ ch = eat_escaped_newline(ch);
+
+ *ptr++ = ch;
+ }
+ ptr[0] = '\0';
+ if (_nc_syntax == ERR) {
+ /*
+ * Grrr...what we ought to do here is barf, complaining that
+ * the entry is malformed. But because a couple of name fields
+ * in the 8.2 termcap file end with |\, we just have to assume
+ * it's termcap syntax.
+ */
+ _nc_syntax = SYN_TERMCAP;
+ separator = ':';
+ } else if (_nc_syntax == SYN_TERMINFO) {
+ /* throw away trailing /, *$/ */
+ for (--ptr; iswhite(*ptr) || *ptr == ','; ptr--)
+ continue;
+ ptr[1] = '\0';
+ }
+
+ /*
+ * This is the soonest we have the terminal name fetched. Set up
+ * for following warning messages. If there's no '|', then there
+ * is no description.
+ */
+ if (after_name != 0) {
+ ch = *after_name;
+ *after_name = '\0';
+ _nc_set_type(buffer);
+ *after_name = ch;
+ }
+
+ /*
+ * Compute the boundary between the aliases and the description
+ * field for syntax-checking purposes.
+ */
+ if (after_list != 0) {
+ if (!silent) {
+ if (*after_list == '\0')
+ _nc_warning("empty longname field");
+ else if (strchr(after_list, ' ') == 0)
+ _nc_warning("older tic versions may treat the description field as an alias");
+ }
+ } else {
+ after_list = buffer + strlen(buffer);
+ DEBUG(1, ("missing description"));
+ }
+
+ /*
+ * Whitespace in a name field other than the long name can confuse
+ * rdist and some termcap tools. Slashes are a no-no. Other
+ * special characters can be dangerous due to shell expansion.
+ */
+ for (s = buffer; s < after_list; ++s) {
+ if (isspace(UChar(*s))) {
+ if (!silent)
+ _nc_warning("whitespace in name or alias field");
+ break;
+ } else if (*s == '/') {
+ if (!silent)
+ _nc_warning("slashes aren't allowed in names or aliases");
+ break;
+ } else if (strchr("$[]!*?", *s)) {
+ if (!silent)
+ _nc_warning("dubious character `%c' in name or alias field", *s);
+ break;
+ }
+ }
+
+ _nc_curr_token.tk_name = buffer;
+ type = NAMES;
+ } else {
+ if (had_newline && _nc_syntax == SYN_TERMCAP) {
+ _nc_warning("Missing backslash before newline");
+ had_newline = FALSE;
+ }
+ while ((ch = next_char()) != EOF) {
+ if (!isalnum(UChar(ch))) {
+ if (_nc_syntax == SYN_TERMINFO) {
+ if (ch != '_')
+ break;
+ } else { /* allow ';' for "k;" */
+ if (ch != ';')
+ break;
+ }
+ }
+ *(ptr++) = ch;
+ }
+
+ *ptr++ = '\0';
+ switch (ch) {
+ case ',':
+ case ':':
+ if (ch != separator)
+ _nc_err_abort("Separator inconsistent with syntax");
+ _nc_curr_token.tk_name = buffer;
+ type = BOOLEAN;
+ break;
+ case '@':
+ if ((ch = next_char()) != separator && !silent)
+ _nc_warning("Missing separator after `%s', have %s",
+ buffer, unctrl((chtype) ch));
+ _nc_curr_token.tk_name = buffer;
+ type = CANCEL;
+ break;
+
+ case '#':
+ found = 0;
+ while (isalnum(ch = next_char())) {
+ numbuf[found++] = ch;
+ if (found >= sizeof(numbuf) - 1)
+ break;
+ }
+ numbuf[found] = '\0';
+ number = strtol(numbuf, &numchk, 0);
+ if (!silent) {
+ if (numchk == numbuf)
+ _nc_warning("no value given for `%s'", buffer);
+ if ((*numchk != '\0') || (ch != separator))
+ _nc_warning("Missing separator");
+ }
+ _nc_curr_token.tk_name = buffer;
+ _nc_curr_token.tk_valnumber = number;
+ type = NUMBER;
+ break;
+
+ case '=':
+ ch = _nc_trans_string(ptr, buffer + MAX_ENTRY_SIZE);
+ if (!silent && ch != separator)
+ _nc_warning("Missing separator");
+ _nc_curr_token.tk_name = buffer;
+ _nc_curr_token.tk_valstring = ptr;
+ type = STRING;
+ break;
+
+ case EOF:
+ type = EOF;
+ break;
+ default:
+ /* just to get rid of the compiler warning */
+ type = UNDEF;
+ if (!silent)
+ _nc_warning("Illegal character - '%s'", unctrl((chtype) ch));
+ }
+ } /* end else (first_column == FALSE) */
+ } /* end else (ch != EOF) */
+
+ end_of_token:
+
+#ifdef TRACE
+ if (dot_flag == TRUE)
+ DEBUG(8, ("Commented out "));
+
+ if (_nc_tracing >= DEBUG_LEVEL(8)) {
+ _tracef("parsed %d.%d to %d.%d",
+ old_line, old_col,
+ _nc_curr_line, _nc_curr_col);
+ }
+ if (_nc_tracing >= DEBUG_LEVEL(7)) {
+ switch (type) {
+ case BOOLEAN:
+ _tracef("Token: Boolean; name='%s'",
+ _nc_curr_token.tk_name);
+ break;
+
+ case NUMBER:
+ _tracef("Token: Number; name='%s', value=%d",
+ _nc_curr_token.tk_name,
+ _nc_curr_token.tk_valnumber);
+ break;
+
+ case STRING:
+ _tracef("Token: String; name='%s', value=%s",
+ _nc_curr_token.tk_name,
+ _nc_visbuf(_nc_curr_token.tk_valstring));
+ break;
+
+ case CANCEL:
+ _tracef("Token: Cancel; name='%s'",
+ _nc_curr_token.tk_name);
+ break;
+
+ case NAMES:
+
+ _tracef("Token: Names; value='%s'",
+ _nc_curr_token.tk_name);
+ break;
+
+ case EOF:
+ _tracef("Token: End of file");
+ break;
+
+ default:
+ _nc_warning("Bad token type");
+ }
+ }
+#endif
+
+ if (dot_flag == TRUE) /* if commented out, use the next one */
+ type = _nc_get_token(silent);
+
+ DEBUG(3, ("token: `%s', class %d",
+ ((_nc_curr_token.tk_name != 0)
+ ? _nc_curr_token.tk_name
+ : "<null>"),
+ type));
+
+ return (type);
+}
+
+/*
+ * char
+ * trans_string(ptr)
+ *
+ * Reads characters using next_char() until encountering a separator, nl,
+ * or end-of-file. The returned value is the character which caused
+ * reading to stop. The following translations are done on the input:
+ *
+ * ^X goes to ctrl-X (i.e. X & 037)
+ * {\E,\n,\r,\b,\t,\f} go to
+ * {ESCAPE,newline,carriage-return,backspace,tab,formfeed}
+ * {\^,\\} go to {carat,backslash}
+ * \ddd (for ddd = up to three octal digits) goes to the character ddd
+ *
+ * \e == \E
+ * \0 == \200
+ *
+ */
+
+NCURSES_EXPORT(int)
+_nc_trans_string(char *ptr, char *last)
+{
+ int count = 0;
+ int number = 0;
+ int i, c;
+ chtype ch, last_ch = '\0';
+ bool ignored = FALSE;
+ bool long_warning = FALSE;
+
+ while ((ch = c = next_char()) != (chtype) separator && c != EOF) {
+ if (ptr == (last - 1))
+ break;
+ if ((_nc_syntax == SYN_TERMCAP) && c == '\n')
+ break;
+ if (ch == '^' && last_ch != '%') {
+ ch = c = next_char();
+ if (c == EOF)
+ _nc_err_abort(MSG_NO_INPUTS);
+
+ if (!(is7bits(ch) && isprint(ch))) {
+ _nc_warning("Illegal ^ character - '%s'", unctrl(ch));
+ }
+ if (ch == '?') {
+ *(ptr++) = '\177';
+ if (_nc_tracing)
+ _nc_warning("Allow ^? as synonym for \\177");
+ } else {
+ if ((ch &= 037) == 0)
+ ch = 128;
+ *(ptr++) = (char) (ch);
+ }
+ } else if (ch == '\\') {
+ ch = c = next_char();
+ if (c == EOF)
+ _nc_err_abort(MSG_NO_INPUTS);
+
+ if (ch >= '0' && ch <= '7') {
+ number = ch - '0';
+ for (i = 0; i < 2; i++) {
+ ch = c = next_char();
+ if (c == EOF)
+ _nc_err_abort(MSG_NO_INPUTS);
+
+ if (c < '0' || c > '7') {
+ if (isdigit(c)) {
+ _nc_warning("Non-octal digit `%c' in \\ sequence", c);
+ /* allow the digit; it'll do less harm */
+ } else {
+ push_back((char) c);
+ break;
+ }
+ }
+
+ number = number * 8 + c - '0';
+ }
+
+ if (number == 0)
+ number = 0200;
+ *(ptr++) = (char) number;
+ } else {
+ switch (c) {
+ case 'E':
+ case 'e':
+ *(ptr++) = '\033';
+ break;
+
+ case 'a':
+ *(ptr++) = '\007';
+ break;
+
+ case 'l':
+ case 'n':
+ *(ptr++) = '\n';
+ break;
+
+ case 'r':
+ *(ptr++) = '\r';
+ break;
+
+ case 'b':
+ *(ptr++) = '\010';
+ break;
+
+ case 's':
+ *(ptr++) = ' ';
+ break;
+
+ case 'f':
+ *(ptr++) = '\014';
+ break;
+
+ case 't':
+ *(ptr++) = '\t';
+ break;
+
+ case '\\':
+ *(ptr++) = '\\';
+ break;
+
+ case '^':
+ *(ptr++) = '^';
+ break;
+
+ case ',':
+ *(ptr++) = ',';
+ break;
+
+ case ':':
+ *(ptr++) = ':';
+ break;
+
+ case '\n':
+ continue;
+
+ default:
+ _nc_warning("Illegal character '%s' in \\ sequence",
+ unctrl(ch));
+ /* FALLTHRU */
+ case '|':
+ *(ptr++) = (char) ch;
+ } /* endswitch (ch) */
+ } /* endelse (ch < '0' || ch > '7') */
+ }
+ /* end else if (ch == '\\') */
+ else if (ch == '\n' && (_nc_syntax == SYN_TERMINFO)) {
+ /*
+ * Newlines embedded in a terminfo string are ignored, provided
+ * that the next line begins with whitespace.
+ */
+ ignored = TRUE;
+ } else {
+ *(ptr++) = (char) ch;
+ }
+
+ if (!ignored) {
+ if (_nc_curr_col <= 1) {
+ push_back(ch);
+ ch = '\n';
+ break;
+ }
+ last_ch = ch;
+ count++;
+ }
+ ignored = FALSE;
+
+ if (count > MAXCAPLEN && !long_warning) {
+ _nc_warning("Very long string found. Missing separator?");
+ long_warning = TRUE;
+ }
+ } /* end while */
+
+ *ptr = '\0';
+
+ return (ch);
+}
+
+/*
+ * _nc_push_token()
+ *
+ * Push a token of given type so that it will be reread by the next
+ * get_token() call.
+ */
+
+NCURSES_EXPORT(void)
+_nc_push_token(int tokclass)
+{
+ /*
+ * This implementation is kind of bogus, it will fail if we ever do more
+ * than one pushback at a time between get_token() calls. It relies on the
+ * fact that _nc_curr_token is static storage that nothing but
+ * _nc_get_token() touches.
+ */
+ pushtype = tokclass;
+ if (pushname == 0)
+ pushname = typeMalloc(char, MAX_NAME_SIZE + 1);
+ _nc_get_type(pushname);
+
+ DEBUG(3, ("pushing token: `%s', class %d",
+ ((_nc_curr_token.tk_name != 0)
+ ? _nc_curr_token.tk_name
+ : "<null>"),
+ pushtype));
+}
+
+/*
+ * Panic mode error recovery - skip everything until a "ch" is found.
+ */
+NCURSES_EXPORT(void)
+_nc_panic_mode(char ch)
+{
+ int c;
+
+ for (;;) {
+ c = next_char();
+ if (c == ch)
+ return;
+ if (c == EOF)
+ return;
+ }
+}
+
+#if NO_LEAKS
+NCURSES_EXPORT(void)
+_nc_comp_scan_leaks(void)
+{
+ if (pushname != 0) {
+ FreeAndNull(pushname);
+ }
+}
+#endif