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Diffstat (limited to 'gnu/usr.bin/texinfo/info/tilde.c')
-rw-r--r--gnu/usr.bin/texinfo/info/tilde.c258
1 files changed, 123 insertions, 135 deletions
diff --git a/gnu/usr.bin/texinfo/info/tilde.c b/gnu/usr.bin/texinfo/info/tilde.c
index df2f6dcde18..38cdf395396 100644
--- a/gnu/usr.bin/texinfo/info/tilde.c
+++ b/gnu/usr.bin/texinfo/info/tilde.c
@@ -1,13 +1,11 @@
-/* tilde.c -- Tilde expansion code (~/foo := $HOME/foo). */
+/* tilde.c -- Tilde expansion code (~/foo := $HOME/foo).
+ $Id: tilde.c,v 1.2 1999/01/11 16:38:10 espie Exp $
-/* This file is part of GNU Info, a program for reading online documentation
+ This file is part of GNU Info, a program for reading online documentation
stored in Info format.
- This file has appeared in prior works by the Free Software Foundation;
- thus it carries copyright dates from 1988 through 1993.
-
- Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993 Free Software
- Foundation, Inc.
+ Copyright (C) 1988, 89, 90, 91, 92, 93, 96, 98
+ Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -25,39 +23,29 @@
Written by Brian Fox (bfox@ai.mit.edu). */
-#if defined (__GNUC__)
-# define alloca __builtin_alloca
-#else /* !__GNUC__ */
-# if defined (_AIX)
+/* Indent #pragma so that older Cpp's don't try to parse it. */
+#ifdef _AIX
#pragma alloca
-# else /* !_AIX */
-# if defined (HAVE_ALLOCA_H)
-# include <alloca.h>
-# endif /* HAVE_ALLOCA_H */
-# endif /* !AIX */
-#endif /* !__GNUC__ */
-
-#if defined (HAVE_STDLIB_H)
-#include <stdlib.h>
-#endif
+#endif /* _AIX */
-#include "tilde.h"
-#include <pwd.h>
-
-#if defined (HAVE_STRING_H)
-#include <string.h>
-#endif
+/* Include config.h before doing alloca. */
+#include "info.h"
-#include "clib.h"
-
-#if !defined (NULL)
-# define NULL 0x0
+#ifdef __GNUC__
+# undef alloca
+# define alloca __builtin_alloca
+#else
+# ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+# else
+# ifndef _AIX
+char *alloca ();
+# endif
+# endif
#endif
#if defined (TEST) || defined (STATIC_MALLOC)
static void *xmalloc (), *xrealloc ();
-#else
-extern void *xmalloc (), *xrealloc ();
#endif /* TEST || STATIC_MALLOC */
/* The default value of tilde_additional_prefixes. This is set to
@@ -108,16 +96,16 @@ tilde_find_prefix (string, len)
if (prefixes)
{
for (i = 0; i < string_len; i++)
- {
- for (j = 0; prefixes[j]; j++)
- {
- if (strncmp (string + i, prefixes[j], strlen (prefixes[j])) == 0)
- {
- *len = strlen (prefixes[j]) - 1;
- return (i + *len);
- }
- }
- }
+ {
+ for (j = 0; prefixes[j]; j++)
+ {
+ if (strncmp (string + i, prefixes[j], strlen (prefixes[j])) == 0)
+ {
+ *len = strlen (prefixes[j]) - 1;
+ return (i + *len);
+ }
+ }
+ }
}
return (string_len);
}
@@ -136,13 +124,13 @@ tilde_find_suffix (string)
for (i = 0; i < string_len; i++)
{
if (string[i] == '/' || !string[i])
- break;
+ break;
for (j = 0; suffixes && suffixes[j]; j++)
- {
- if (strncmp (string + i, suffixes[j], strlen (suffixes[j])) == 0)
- return (i);
- }
+ {
+ if (strncmp (string + i, suffixes[j], strlen (suffixes[j])) == 0)
+ return (i);
+ }
}
return (i);
}
@@ -170,7 +158,7 @@ tilde_expand (string)
/* Copy the skipped text into the result. */
if ((result_index + start + 1) > result_size)
- result = (char *)xrealloc (result, 1 + (result_size += (start + 20)));
+ result = (char *)xrealloc (result, 1 + (result_size += (start + 20)));
strncpy (result + result_index, string, start);
result_index += start;
@@ -179,12 +167,12 @@ tilde_expand (string)
string += start;
/* Make END be the index of one after the last character of the
- username. */
+ username. */
end = tilde_find_suffix (string);
/* If both START and END are zero, we are all done. */
if (!start && !end)
- break;
+ break;
/* Expand the entire tilde word, and copy it into RESULT. */
tilde_word = (char *)xmalloc (1 + end);
@@ -197,7 +185,7 @@ tilde_expand (string)
len = strlen (expansion);
if ((result_index + len + 1) > result_size)
- result = (char *)xrealloc (result, 1 + (result_size += (len + 20)));
+ result = (char *)xrealloc (result, 1 + (result_size += (len + 20)));
strcpy (result + result_index, expansion);
result_index += len;
@@ -217,87 +205,87 @@ tilde_expand_word (filename)
{
char *dirname;
- dirname = filename ? strdup (filename) : (char *)NULL;
+ dirname = filename ? xstrdup (filename) : (char *)NULL;
if (dirname && *dirname == '~')
{
char *temp_name;
if (!dirname[1] || dirname[1] == '/')
- {
- /* Prepend $HOME to the rest of the string. */
- char *temp_home = (char *)getenv ("HOME");
-
- /* If there is no HOME variable, look up the directory in
- the password database. */
- if (!temp_home)
- {
- struct passwd *entry;
-
- entry = (struct passwd *) getpwuid (getuid ());
- if (entry)
- temp_home = entry->pw_dir;
- }
-
- temp_name = (char *)
- alloca (1 + strlen (&dirname[1])
- + (temp_home ? strlen (temp_home) : 0));
- temp_name[0] = '\0';
- if (temp_home)
- strcpy (temp_name, temp_home);
- strcat (temp_name, &dirname[1]);
- free (dirname);
- dirname = strdup (temp_name);
- }
+ {
+ /* Prepend $HOME to the rest of the string. */
+ char *temp_home = getenv ("HOME");
+
+ /* If there is no HOME variable, look up the directory in
+ the password database. */
+ if (!temp_home)
+ {
+ struct passwd *entry;
+
+ entry = (struct passwd *) getpwuid (getuid ());
+ if (entry)
+ temp_home = entry->pw_dir;
+ }
+
+ temp_name = (char *)
+ alloca (1 + strlen (&dirname[1])
+ + (temp_home ? strlen (temp_home) : 0));
+ temp_name[0] = '\0';
+ if (temp_home)
+ strcpy (temp_name, temp_home);
+ strcat (temp_name, &dirname[1]);
+ free (dirname);
+ dirname = xstrdup (temp_name);
+ }
else
- {
- struct passwd *user_entry;
- char *username = (char *)alloca (257);
- int i, c;
-
- for (i = 1; c = dirname[i]; i++)
- {
- if (c == '/')
- break;
- else
- username[i - 1] = c;
- }
- username[i - 1] = '\0';
-
- if (!(user_entry = (struct passwd *) getpwnam (username)))
- {
- /* If the calling program has a special syntax for
- expanding tildes, and we couldn't find a standard
- expansion, then let them try. */
- if (tilde_expansion_failure_hook)
- {
- char *expansion;
-
- expansion = (*tilde_expansion_failure_hook) (username);
-
- if (expansion)
- {
- temp_name = (char *)alloca
- (1 + strlen (expansion) + strlen (&dirname[i]));
- strcpy (temp_name, expansion);
- strcat (temp_name, &dirname[i]);
- free (expansion);
- goto return_name;
- }
- }
- /* We shouldn't report errors. */
- }
- else
- {
- temp_name = (char *)alloca
- (1 + strlen (user_entry->pw_dir) + strlen (&dirname[i]));
- strcpy (temp_name, user_entry->pw_dir);
- strcat (temp_name, &dirname[i]);
- return_name:
- free (dirname);
- dirname = strdup (temp_name);
- }
- endpwent ();
- }
+ {
+ struct passwd *user_entry;
+ char *username = (char *)alloca (257);
+ int i, c;
+
+ for (i = 1; (c = dirname[i]); i++)
+ {
+ if (c == '/')
+ break;
+ else
+ username[i - 1] = c;
+ }
+ username[i - 1] = '\0';
+
+ if (!(user_entry = (struct passwd *) getpwnam (username)))
+ {
+ /* If the calling program has a special syntax for
+ expanding tildes, and we couldn't find a standard
+ expansion, then let them try. */
+ if (tilde_expansion_failure_hook)
+ {
+ char *expansion;
+
+ expansion = (*tilde_expansion_failure_hook) (username);
+
+ if (expansion)
+ {
+ temp_name = (char *)alloca
+ (1 + strlen (expansion) + strlen (&dirname[i]));
+ strcpy (temp_name, expansion);
+ strcat (temp_name, &dirname[i]);
+ free (expansion);
+ goto return_name;
+ }
+ }
+ /* We shouldn't report errors. */
+ }
+ else
+ {
+ temp_name = (char *)alloca
+ (1 + strlen (user_entry->pw_dir) + strlen (&dirname[i]));
+ strcpy (temp_name, user_entry->pw_dir);
+ strcat (temp_name, &dirname[i]);
+ return_name:
+ free (dirname);
+ dirname = xstrdup (temp_name);
+ }
+ endpwent ();
+ }
}
return (dirname);
}
@@ -320,15 +308,15 @@ main (argc, argv)
fflush (stdout);
if (!gets (line))
- strcpy (line, "done");
+ strcpy (line, "done");
if ((strcmp (line, "done") == 0) ||
- (strcmp (line, "quit") == 0) ||
- (strcmp (line, "exit") == 0))
- {
- done = 1;
- break;
- }
+ (strcmp (line, "quit") == 0) ||
+ (strcmp (line, "exit") == 0))
+ {
+ done = 1;
+ break;
+ }
result = tilde_expand (line);
printf (" --> %s\n", result);
@@ -371,7 +359,7 @@ xrealloc (pointer, bytes)
static void
memory_error_and_abort ()
{
- fprintf (stderr, "readline: Out of virtual memory!\n");
+ fprintf (stderr, _("readline: Out of virtual memory!\n"));
abort ();
}
#endif /* TEST */
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