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sh: Improve internal-representation-to-text code to avoid binary output.

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The code to translate the internal representation to text did not know about
various additions to the internal representation since the original ash and
therefore wrote binary stuff to the terminal.

The code is used in the jobs command and similar output.

Note that the output is far from complete and mostly serves for recognition
purposes.
This commit is contained in:
Jilles Tjoelker 2010-12-06 23:49:27 +00:00
parent 21866e59c2
commit c67712a089
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=216246
1 changed files with 36 additions and 3 deletions
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39
bin/sh/jobs.c
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@ -1314,13 +1314,46 @@ cmdputs(const char *s)
if (--cmdnleft > 0)
*q++ = '{';
subtype = *p++;
if ((subtype & VSTYPE) == VSLENGTH && --cmdnleft > 0)
*q++ = '#';
} else if (c == '=' && subtype != 0) {
*q++ = "}-+?="[(subtype & VSTYPE) - VSNORMAL];
*q = "}-+?=##%%\0X"[(subtype & VSTYPE) - VSNORMAL];
if (*q)
q++;
else
cmdnleft++;
if (((subtype & VSTYPE) == VSTRIMLEFTMAX ||
(subtype & VSTYPE) == VSTRIMRIGHTMAX) &&
--cmdnleft > 0)
*q = q[-1], q++;
subtype = 0;
} else if (c == CTLENDVAR) {
*q++ = '}';
} else if (c == CTLBACKQ || c == CTLBACKQ+CTLQUOTE)
cmdnleft++; /* ignore it */
} else if (c == CTLBACKQ || c == CTLBACKQ+CTLQUOTE) {
cmdnleft -= 5;
if (cmdnleft > 0) {
*q++ = '$';
*q++ = '(';
*q++ = '.';
*q++ = '.';
*q++ = '.';
*q++ = ')';
}
} else if (c == CTLARI) {
cmdnleft -= 2;
if (cmdnleft > 0) {
*q++ = '$';
*q++ = '(';
*q++ = '(';
}
p++;
} else if (c == CTLENDARI) {
if (--cmdnleft > 0) {
*q++ = ')';
*q++ = ')';
}
} else if (c == CTLQUOTEMARK || c == CTLQUOTEEND)
cmdnleft++; /* ignore */
else
*q++ = c;
if (--cmdnleft <= 0) {