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

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

1 files changed, 8 insertions, 6 deletions

diff --git a/editors/sed.c b/editors/sed.c
index b06d5a8d8..5bfe924a5 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -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;
                                 }
                         }