diff options
Diffstat (limited to 'MSVC/readline/util.c')
-rw-r--r-- | MSVC/readline/util.c | 672 |
1 files changed, 336 insertions, 336 deletions
diff --git a/MSVC/readline/util.c b/MSVC/readline/util.c index 37959dd..dc4f7b8 100644 --- a/MSVC/readline/util.c +++ b/MSVC/readline/util.c @@ -1,336 +1,336 @@ -/* util.c -- readline utility functions */ - -/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. - - This file is part of the GNU Readline Library, a library for - reading lines of text with interactive input and history editing. - - The GNU Readline Library is free software; you can redistribute it - and/or modify it under the terms of the GNU General Public License - as published by the Free Software Foundation; either version 2, or - (at your option) any later version. - - The GNU Readline Library is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied warranty - of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - The GNU General Public License is often shipped with GNU software, and - is generally kept in a file called COPYING or LICENSE. If you do not - have a copy of the license, write to the Free Software Foundation, - 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ -#define READLINE_LIBRARY - -#include "config.h" - -#include <sys/types.h> -#include <fcntl.h> -#include "posixjmp.h" - -#if defined (HAVE_UNISTD_H) -# include <unistd.h> /* for _POSIX_VERSION */ -#endif /* HAVE_UNISTD_H */ - -#if defined (HAVE_STDLIB_H) -# include <stdlib.h> -#else -# include "ansi_stdlib.h" -#endif /* HAVE_STDLIB_H */ - -#include <stdio.h> -#include <ctype.h> - -/* System-specific feature definitions and include files. */ -#include "rldefs.h" - -#if defined (TIOCSTAT_IN_SYS_IOCTL) -# include <sys/ioctl.h> -#endif /* TIOCSTAT_IN_SYS_IOCTL */ - -/* Some standard library routines. */ -#include "readline.h" - -#include "rlprivate.h" -#include "xmalloc.h" - -/* **************************************************************** */ -/* */ -/* Utility Functions */ -/* */ -/* **************************************************************** */ - -/* Return 0 if C is not a member of the class of characters that belong - in words, or 1 if it is. */ - -int _rl_allow_pathname_alphabetic_chars = 0; -static const char *pathname_alphabetic_chars = "/-_=~.#$"; - -int -rl_alphabetic (c) - int c; -{ - if (ALPHABETIC (c)) - return (1); - - return (_rl_allow_pathname_alphabetic_chars && - strchr (pathname_alphabetic_chars, c) != NULL); -} - -/* How to abort things. */ -int -_rl_abort_internal () -{ - rl_ding (); - rl_clear_message (); - _rl_init_argument (); - rl_clear_pending_input (); - - RL_UNSETSTATE (RL_STATE_MACRODEF); - while (rl_executing_macro) - _rl_pop_executing_macro (); - - rl_last_func = (rl_command_func_t *)NULL; - longjmp (readline_top_level, 1); - return (0); -} - -int -rl_abort (count, key) - int count, key; -{ - return (_rl_abort_internal ()); -} - -int -rl_tty_status (count, key) - int count, key; -{ -#if defined (TIOCSTAT) - ioctl (1, TIOCSTAT, (char *)0); - rl_refresh_line (count, key); -#else - rl_ding (); -#endif - return 0; -} - -/* Return a copy of the string between FROM and TO. - FROM is inclusive, TO is not. */ -char * -rl_copy_text (from, to) - int from, to; -{ - register int length; - char *copy; - - /* Fix it if the caller is confused. */ - if (from > to) - SWAP (from, to); - - length = to - from; - copy = (char *)xmalloc (1 + length); - strncpy (copy, rl_line_buffer + from, length); - copy[length] = '\0'; - return (copy); -} - -/* Increase the size of RL_LINE_BUFFER until it has enough space to hold - LEN characters. */ -void -rl_extend_line_buffer (len) - int len; -{ - while (len >= rl_line_buffer_len) - { - rl_line_buffer_len += DEFAULT_BUFFER_SIZE; - rl_line_buffer = (char *)xrealloc (rl_line_buffer, rl_line_buffer_len); - } - - _rl_set_the_line (); -} - - -/* A function for simple tilde expansion. */ -int -rl_tilde_expand (ignore, key) - int ignore, key; -{ - register int start, end; - char *homedir, *temp; - int len; - - end = rl_point; - start = end - 1; - - if (rl_point == rl_end && rl_line_buffer[rl_point] == '~') - { - homedir = tilde_expand ("~"); - _rl_replace_text (homedir, start, end); - return (0); - } - else if (rl_line_buffer[start] != '~') - { - for (; !whitespace (rl_line_buffer[start]) && start >= 0; start--) - ; - start++; - } - - end = start; - do - end++; - while (whitespace (rl_line_buffer[end]) == 0 && end < rl_end); - - if (whitespace (rl_line_buffer[end]) || end >= rl_end) - end--; - - /* If the first character of the current word is a tilde, perform - tilde expansion and insert the result. If not a tilde, do - nothing. */ - if (rl_line_buffer[start] == '~') - { - len = end - start + 1; - temp = (char *)xmalloc (len + 1); - strncpy (temp, rl_line_buffer + start, len); - temp[len] = '\0'; - homedir = tilde_expand (temp); - free (temp); - - _rl_replace_text (homedir, start, end); - } - - return (0); -} - -/* **************************************************************** */ -/* */ -/* String Utility Functions */ -/* */ -/* **************************************************************** */ - -/* Determine if s2 occurs in s1. If so, return a pointer to the - match in s1. The compare is case insensitive. */ -char * -_rl_strindex (s1, s2) - register const char *s1, *s2; -{ - register int i, l, len; - - for (i = 0, l = strlen (s2), len = strlen (s1); (len - i) >= l; i++) - if (_rl_strnicmp (s1 + i, s2, l) == 0) - return ((char *) (s1 + i)); - return ((char *)NULL); -} - -#ifndef HAVE_STRPBRK -/* Find the first occurrence in STRING1 of any character from STRING2. - Return a pointer to the character in STRING1. */ -char * -_rl_strpbrk (string1, string2) - const char *string1, *string2; -{ - register const char *scan; -#if defined (HANDLE_MULTIBYTE) - mbstate_t ps; - register int i, v; - - memset (&ps, 0, sizeof (mbstate_t)); -#endif - - for (; *string1; string1++) - { - for (scan = string2; *scan; scan++) - { - if (*string1 == *scan) - return ((char *)string1); - } -#if defined (HANDLE_MULTIBYTE) - if (MB_CUR_MAX > 1 && rl_byte_oriented == 0) - { - v = _rl_get_char_len (string1, &ps); - if (v > 1) - string += v - 1; /* -1 to account for auto-increment in loop */ - } -#endif - } - return ((char *)NULL); -} -#endif - -#if !defined (HAVE_STRCASECMP) -/* Compare at most COUNT characters from string1 to string2. Case - doesn't matter. */ -int -_rl_strnicmp (string1, string2, count) - const char *string1, *string2; - int count; -{ - register char ch1, ch2; - - while (count) - { - ch1 = *string1++; - ch2 = *string2++; - if (_rl_to_upper(ch1) == _rl_to_upper(ch2)) - count--; - else - break; - } - return (count); -} - -/* strcmp (), but caseless. */ -int -_rl_stricmp (string1, string2) - const char *string1, *string2; -{ - register char ch1, ch2; - - while (*string1 && *string2) - { - ch1 = *string1++; - ch2 = *string2++; - if (_rl_to_upper(ch1) != _rl_to_upper(ch2)) - return (1); - } - return (*string1 - *string2); -} -#endif /* !HAVE_STRCASECMP */ - -/* Stupid comparison routine for qsort () ing strings. */ -int -_rl_qsort_string_compare (s1, s2) - char **s1, **s2; -{ -#if defined (HAVE_STRCOLL) - return (strcoll (*s1, *s2)); -#else - int result; - - result = **s1 - **s2; - if (result == 0) - result = strcmp (*s1, *s2); - - return result; -#endif -} - -/* Function equivalents for the macros defined in chardefs.h. */ -#define FUNCTION_FOR_MACRO(f) int (f) (c) int c; { return f (c); } - -FUNCTION_FOR_MACRO (_rl_digit_p) -FUNCTION_FOR_MACRO (_rl_digit_value) -FUNCTION_FOR_MACRO (_rl_lowercase_p) -FUNCTION_FOR_MACRO (_rl_pure_alphabetic) -FUNCTION_FOR_MACRO (_rl_to_lower) -FUNCTION_FOR_MACRO (_rl_to_upper) -FUNCTION_FOR_MACRO (_rl_uppercase_p) - -/* Backwards compatibility, now that savestring has been removed from - all `public' readline header files. */ -#undef _rl_savestring -char * -_rl_savestring (s) - const char *s; -{ - return (strcpy ((char *)xmalloc (1 + (int)strlen (s)), (s))); -} +/* util.c -- readline utility functions */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2, or
+ (at your option) any later version.
+
+ The GNU Readline Library is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+#define READLINE_LIBRARY
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <fcntl.h>
+#include "posixjmp.h"
+
+#if defined (HAVE_UNISTD_H)
+# include <unistd.h> /* for _POSIX_VERSION */
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+# include <stdlib.h>
+#else
+# include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h>
+#include <ctype.h>
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+#if defined (TIOCSTAT_IN_SYS_IOCTL)
+# include <sys/ioctl.h>
+#endif /* TIOCSTAT_IN_SYS_IOCTL */
+
+/* Some standard library routines. */
+#include "readline.h"
+
+#include "rlprivate.h"
+#include "xmalloc.h"
+
+/* **************************************************************** */
+/* */
+/* Utility Functions */
+/* */
+/* **************************************************************** */
+
+/* Return 0 if C is not a member of the class of characters that belong
+ in words, or 1 if it is. */
+
+int _rl_allow_pathname_alphabetic_chars = 0;
+static const char *pathname_alphabetic_chars = "/-_=~.#$";
+
+int
+rl_alphabetic (c)
+ int c;
+{
+ if (ALPHABETIC (c))
+ return (1);
+
+ return (_rl_allow_pathname_alphabetic_chars &&
+ strchr (pathname_alphabetic_chars, c) != NULL);
+}
+
+/* How to abort things. */
+int
+_rl_abort_internal ()
+{
+ rl_ding ();
+ rl_clear_message ();
+ _rl_init_argument ();
+ rl_clear_pending_input ();
+
+ RL_UNSETSTATE (RL_STATE_MACRODEF);
+ while (rl_executing_macro)
+ _rl_pop_executing_macro ();
+
+ rl_last_func = (rl_command_func_t *)NULL;
+ longjmp (readline_top_level, 1);
+ return (0);
+}
+
+int
+rl_abort (count, key)
+ int count, key;
+{
+ return (_rl_abort_internal ());
+}
+
+int
+rl_tty_status (count, key)
+ int count, key;
+{
+#if defined (TIOCSTAT)
+ ioctl (1, TIOCSTAT, (char *)0);
+ rl_refresh_line (count, key);
+#else
+ rl_ding ();
+#endif
+ return 0;
+}
+
+/* Return a copy of the string between FROM and TO.
+ FROM is inclusive, TO is not. */
+char *
+rl_copy_text (from, to)
+ int from, to;
+{
+ register int length;
+ char *copy;
+
+ /* Fix it if the caller is confused. */
+ if (from > to)
+ SWAP (from, to);
+
+ length = to - from;
+ copy = (char *)xmalloc (1 + length);
+ strncpy (copy, rl_line_buffer + from, length);
+ copy[length] = '\0';
+ return (copy);
+}
+
+/* Increase the size of RL_LINE_BUFFER until it has enough space to hold
+ LEN characters. */
+void
+rl_extend_line_buffer (len)
+ int len;
+{
+ while (len >= rl_line_buffer_len)
+ {
+ rl_line_buffer_len += DEFAULT_BUFFER_SIZE;
+ rl_line_buffer = (char *)xrealloc (rl_line_buffer, rl_line_buffer_len);
+ }
+
+ _rl_set_the_line ();
+}
+
+
+/* A function for simple tilde expansion. */
+int
+rl_tilde_expand (ignore, key)
+ int ignore, key;
+{
+ register int start, end;
+ char *homedir, *temp;
+ int len;
+
+ end = rl_point;
+ start = end - 1;
+
+ if (rl_point == rl_end && rl_line_buffer[rl_point] == '~')
+ {
+ homedir = tilde_expand ("~");
+ _rl_replace_text (homedir, start, end);
+ return (0);
+ }
+ else if (rl_line_buffer[start] != '~')
+ {
+ for (; !whitespace (rl_line_buffer[start]) && start >= 0; start--)
+ ;
+ start++;
+ }
+
+ end = start;
+ do
+ end++;
+ while (whitespace (rl_line_buffer[end]) == 0 && end < rl_end);
+
+ if (whitespace (rl_line_buffer[end]) || end >= rl_end)
+ end--;
+
+ /* If the first character of the current word is a tilde, perform
+ tilde expansion and insert the result. If not a tilde, do
+ nothing. */
+ if (rl_line_buffer[start] == '~')
+ {
+ len = end - start + 1;
+ temp = (char *)xmalloc (len + 1);
+ strncpy (temp, rl_line_buffer + start, len);
+ temp[len] = '\0';
+ homedir = tilde_expand (temp);
+ free (temp);
+
+ _rl_replace_text (homedir, start, end);
+ }
+
+ return (0);
+}
+
+/* **************************************************************** */
+/* */
+/* String Utility Functions */
+/* */
+/* **************************************************************** */
+
+/* Determine if s2 occurs in s1. If so, return a pointer to the
+ match in s1. The compare is case insensitive. */
+char *
+_rl_strindex (s1, s2)
+ register const char *s1, *s2;
+{
+ register int i, l, len;
+
+ for (i = 0, l = strlen (s2), len = strlen (s1); (len - i) >= l; i++)
+ if (_rl_strnicmp (s1 + i, s2, l) == 0)
+ return ((char *) (s1 + i));
+ return ((char *)NULL);
+}
+
+#ifndef HAVE_STRPBRK
+/* Find the first occurrence in STRING1 of any character from STRING2.
+ Return a pointer to the character in STRING1. */
+char *
+_rl_strpbrk (string1, string2)
+ const char *string1, *string2;
+{
+ register const char *scan;
+#if defined (HANDLE_MULTIBYTE)
+ mbstate_t ps;
+ register int i, v;
+
+ memset (&ps, 0, sizeof (mbstate_t));
+#endif
+
+ for (; *string1; string1++)
+ {
+ for (scan = string2; *scan; scan++)
+ {
+ if (*string1 == *scan)
+ return ((char *)string1);
+ }
+#if defined (HANDLE_MULTIBYTE)
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+ {
+ v = _rl_get_char_len (string1, &ps);
+ if (v > 1)
+ string += v - 1; /* -1 to account for auto-increment in loop */
+ }
+#endif
+ }
+ return ((char *)NULL);
+}
+#endif
+
+#if !defined (HAVE_STRCASECMP)
+/* Compare at most COUNT characters from string1 to string2. Case
+ doesn't matter. */
+int
+_rl_strnicmp (string1, string2, count)
+ const char *string1, *string2;
+ int count;
+{
+ register char ch1, ch2;
+
+ while (count)
+ {
+ ch1 = *string1++;
+ ch2 = *string2++;
+ if (_rl_to_upper(ch1) == _rl_to_upper(ch2))
+ count--;
+ else
+ break;
+ }
+ return (count);
+}
+
+/* strcmp (), but caseless. */
+int
+_rl_stricmp (string1, string2)
+ const char *string1, *string2;
+{
+ register char ch1, ch2;
+
+ while (*string1 && *string2)
+ {
+ ch1 = *string1++;
+ ch2 = *string2++;
+ if (_rl_to_upper(ch1) != _rl_to_upper(ch2))
+ return (1);
+ }
+ return (*string1 - *string2);
+}
+#endif /* !HAVE_STRCASECMP */
+
+/* Stupid comparison routine for qsort () ing strings. */
+int
+_rl_qsort_string_compare (s1, s2)
+ char **s1, **s2;
+{
+#if defined (HAVE_STRCOLL)
+ return (strcoll (*s1, *s2));
+#else
+ int result;
+
+ result = **s1 - **s2;
+ if (result == 0)
+ result = strcmp (*s1, *s2);
+
+ return result;
+#endif
+}
+
+/* Function equivalents for the macros defined in chardefs.h. */
+#define FUNCTION_FOR_MACRO(f) int (f) (c) int c; { return f (c); }
+
+FUNCTION_FOR_MACRO (_rl_digit_p)
+FUNCTION_FOR_MACRO (_rl_digit_value)
+FUNCTION_FOR_MACRO (_rl_lowercase_p)
+FUNCTION_FOR_MACRO (_rl_pure_alphabetic)
+FUNCTION_FOR_MACRO (_rl_to_lower)
+FUNCTION_FOR_MACRO (_rl_to_upper)
+FUNCTION_FOR_MACRO (_rl_uppercase_p)
+
+/* Backwards compatibility, now that savestring has been removed from
+ all `public' readline header files. */
+#undef _rl_savestring
+char *
+_rl_savestring (s)
+ const char *s;
+{
+ return (strcpy ((char *)xmalloc (1 + (int)strlen (s)), (s)));
+}
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