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Imported from ../bash-2.0.tar.gz.

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This commit is contained in:
Jari Aalto 1996-12-23 17:02:34 +00:00
commit ccc6cda312
502 changed files with 91988 additions and 69123 deletions
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121
builtins/echo.def
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@ -20,6 +20,12 @@ with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
$PRODUCES echo.c
#include <config.h>
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include <stdio.h>
#include "../shell.h"
@ -33,6 +39,7 @@ following backslash-escaped characters is turned on:
\a alert (bell)
\b backspace
\c suppress trailing newline
\E escape character
\f form feed
\n new line
\r carriage return
@ -60,109 +67,91 @@ $END
/* Print the words in LIST to standard output. If the first word is
`-n', then don't print a trailing newline. We also support the
echo syntax from Version 9 unix systems. */
echo syntax from Version 9 Unix systems. */
int
echo_builtin (list)
WORD_LIST *list;
{
int display_return = 1, do_v9 = 0;
int display_return, do_v9, i;
char *temp;
#if defined (DEFAULT_ECHO_TO_USG)
/* System V machines already have a /bin/sh with a v9 behaviour. We
give Bash the identical behaviour for these machines so that the
existing system shells won't barf. */
do_v9 = 1;
#else
do_v9 = 0;
#endif /* DEFAULT_ECHO_TO_USG */
while (list && list->word->word[0] == '-')
{
register char *temp;
register int i;
display_return = 1;
for (; list && (temp = list->word->word) && *temp == '-'; list = list->next)
{
/* If it appears that we are handling options, then make sure that
all of the options specified are actually valid. Otherwise, the
string should just be echoed. */
temp = &(list->word->word[1]);
temp++;
for (i = 0; temp[i]; i++)
{
if (strchr (VALID_ECHO_OPTIONS, temp[i]) == 0)
goto just_echo;
break;
}
if (!*temp)
goto just_echo;
/* echo - and echo -<nonopt> both mean to just echo the arguments. */
if (*temp == 0 || temp[i])
break;
/* All of the options in TEMP are valid options to ECHO.
Handle them. */
while (*temp)
while (i = *temp++)
{
if (*temp == 'n')
display_return = 0;
switch (i)
{
case 'n':
display_return = 0;
break;
#if defined (V9_ECHO)
else if (*temp == 'e')
do_v9 = 1;
else if (*temp == 'E')
do_v9 = 0;
case 'e':
do_v9 = 1;
break;
case 'E':
do_v9 = 0;
break;
#endif /* V9_ECHO */
else
goto just_echo;
temp++;
default:
goto just_echo; /* XXX */
}
}
list = list->next;
}
just_echo:
if (list)
while (list)
{
#if defined (V9_ECHO)
if (do_v9)
i = 0;
temp = do_v9 ? ansicstr (list->word->word, STRLEN (list->word->word), &i)
: list->word->word;
if (temp)
{
while (list)
{
register char *s = list->word->word;
register int c;
while (c = *s++)
{
if (c == '\\' && *s)
{
switch (c = *s++)
{
case 'a': c = '\007'; break;
case 'b': c = '\b'; break;
case 'c': display_return = 0; continue;
case 'f': c = '\f'; break;
case 'n': c = '\n'; break;
case 'r': c = '\r'; break;
case 't': c = '\t'; break;
case 'v': c = (int) 0x0B; break;
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
c -= '0';
if (*s >= '0' && *s <= '7')
c = c * 8 + (*s++ - '0');
if (*s >= '0' && *s <= '7')
c = c * 8 + (*s++ - '0');
break;
case '\\': break;
default: putchar ('\\'); break;
}
}
putchar(c);
}
list = list->next;
if (list)
putchar(' ');
}
printf ("%s", temp);
fflush (stdout); /* Fix for bug in SunOS 5.5 printf(3) */
}
else
#endif /* V9_ECHO */
print_word_list (list, " ");
if (do_v9 && temp)
free (temp);
list = list->next;
if (i)
{
display_return = 0;
break;
}
if (list)
putchar(' ');
}
if (display_return)
printf ("\n");
putchar ('\n');
fflush (stdout);
return (EXECUTION_SUCCESS);
}