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sed: simpler fix for recent GNU compat stuff (by Rob Landley)

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function                                             old     new   delta
process_files                                       2120    2102     -18

Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2009-07-14 01:02:57 +02:00
parent 2907e79749
commit 8e96b5b531
1 changed files with 14 additions and 23 deletions
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37
editors/sed.c
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@ -888,53 +888,44 @@ static void process_files(void)
old_matched = sed_cmd->in_match;
/* Determine if this command matches this line: */
/* Are we continuing a previous multi-line match? */
/* Are we continuing a previous multi-line match? */
sed_cmd->in_match = sed_cmd->in_match
/* Or is no range necessary? */
|| (!sed_cmd->beg_line && !sed_cmd->end_line
&& !sed_cmd->beg_match && !sed_cmd->end_match)
/* Or did we match the start of a numerical range? */
|| (sed_cmd->beg_line > 0
&& (sed_cmd->beg_line == linenum
/* GNU sed compat:
* "shadowed beginning" case: "1d;1,ENDp" - p still matches at line 2
* even though 1d skipped line 1 which is a start line for p */
|| (sed_cmd->beg_line < linenum && (sed_cmd->end_line > 0 || sed_cmd->end_match))
)
)
|| (sed_cmd->beg_line > 0 && (sed_cmd->beg_line <= linenum))
/* Or does this line match our begin address regex? */
|| (beg_match(sed_cmd, pattern_space))
/* Or did we match last line of input? */
|| (sed_cmd->beg_line == -1 && next_line == NULL);
/* Snapshot the value */
matched = sed_cmd->in_match;
//bb_error_msg("cmd:'%c' matched:%d beg_line:%d end_line:%d linenum:%d",
//sed_cmd->cmd, matched, sed_cmd->beg_line, sed_cmd->end_line, linenum);
/* Is this line the end of the current match? */
if (matched) {
int n = (
/* once matched, "n,xxx" range is dead, disabling it */
if (sed_cmd->beg_line > 0)
sed_cmd->beg_line = -2;
sed_cmd->in_match = !(
/* has the ending line come, or is this a single address command? */
sed_cmd->end_line ?
(sed_cmd->end_line ?
sed_cmd->end_line == -1 ?
!next_line
: (sed_cmd->end_line <= linenum)
: !sed_cmd->end_match
);
if (!n) {
)
/* or does this line matches our last address regex */
n = (sed_cmd->end_match
&& old_matched
|| (sed_cmd->end_match && old_matched
&& (regexec(sed_cmd->end_match,
pattern_space, 0, NULL, 0) == 0)
);
}
if (n && sed_cmd->beg_line > 0) {
/* once matched, "n,xxx" range is dead, disabling it */
sed_cmd->beg_line = -2;
}
sed_cmd->in_match = !n;
pattern_space, 0, NULL, 0) == 0))
);
}
/* Skip blocks of commands we didn't match */