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Fix the following testcase by storing the state of the adress match with

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the command.
# cat strings
a
b
c
d
e
f
g
# ./busybox sed '1,2d;4,$d' <strings
c
# ./busybox sed '4,$d;1,2d' <strings
# sed '4,$d;1,2d' <strings
c
# sed '1,2d;4,$d' <strings
c
This commit is contained in:
Glenn L McGrath 2003-09-13 06:57:39 +00:00
parent c2b9186be1
commit c18ce373a2
1 changed files with 8 additions and 6 deletions
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14
editors/sed.c
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@ -75,6 +75,9 @@ typedef struct sed_cmd_s {
int invert; /* the '!' after the address */
// int block_cmd; /* This command is part of a group that has a command address */
/* Runtime flag no not if the current command match's */
int still_in_range;
/* SUBSTITUTION COMMAND SPECIFIC FIELDS */
/* sed -e 's/sub_match/replace/' */
@ -491,7 +494,7 @@ static char *parse_cmd_str(sed_cmd_t * sed_cmd, char *cmdstr)
return (cmdstr);
}
static char *add_cmd(sed_cmd_t * sed_cmd, char *cmdstr)
static char *add_cmd(sed_cmd_t *sed_cmd, char *cmdstr)
{
/* Skip over leading whitespace and semicolons */
cmdstr += strspn(cmdstr, semicolon_whitespace);
@ -793,7 +796,6 @@ static void process_file(FILE * file)
char *pattern_space; /* Posix requires it be able to hold at least 8192 bytes */
char *hold_space = NULL; /* Posix requires it be able to hold at least 8192 bytes */
static int linenum = 0; /* GNU sed does not restart counting lines at EOF */
unsigned int still_in_range = 0;
int altered;
int force_print;
@ -836,7 +838,7 @@ static void process_file(FILE * file)
&& (regexec(sed_cmd->beg_match, pattern_space, 0, NULL,
0) == 0)) ||
/* we are currently within the beginning & ending address range */
still_in_range || ((sed_cmd->beg_line == -1)
sed_cmd->still_in_range || ((sed_cmd->beg_line == -1)
&& (next_line == NULL))
);
if (sed_cmd->cmd == '{') {
@ -1077,7 +1079,7 @@ static void process_file(FILE * file)
/* If only one address */
/* we were in the middle of our address range (this
* isn't the first time through) and.. */
|| ((still_in_range == 1)
|| ((sed_cmd->still_in_range == 1)
/* this line number is the last address we're looking for or... */
&& ((sed_cmd->end_line > 0
&& (sed_cmd->end_line == linenum))
@ -1086,10 +1088,10 @@ static void process_file(FILE * file)
&& (regexec(sed_cmd->end_match, pattern_space,
0, NULL, 0) == 0))))) {
/* we're out of our address range */
still_in_range = 0;
sed_cmd->still_in_range = 0;
} else {
/* didn't hit the exit? then we're still in the middle of an address range */
still_in_range = 1;
sed_cmd->still_in_range = 1;
}
}