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Fix relative numerical addressing (addr,+N).

Browse Source 
As a bonus the patch untangles a bit the logic and makes the code
easier to grasp.

PR:		192108
MFC after:	1 week
This commit is contained in:
Jeremie Le Hen 2014-07-30 14:46:39 +00:00
parent 27c095f49e
commit b38ebc0538
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=269302
1 changed files with 26 additions and 18 deletions
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44
usr.bin/sed/process.c
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@ -288,24 +288,32 @@ applies(struct s_command *cp)
r = 1;
else if (cp->a2)
if (cp->startline > 0) {
if (MATCH(cp->a2)) {
cp->startline = 0;
lastaddr = 1;
r = 1;
} else if (linenum - cp->startline <= cp->a2->u.l)
r = 1;
else if ((cp->a2->type == AT_LINE &&
linenum > cp->a2->u.l) ||
(cp->a2->type == AT_RELLINE &&
linenum - cp->startline > cp->a2->u.l)) {
/*
* We missed the 2nd address due to a branch,
* so just close the range and return false.
*/
cp->startline = 0;
r = 0;
} else
r = 1;
switch (cp->a2->type) {
case AT_RELLINE:
if (linenum - cp->startline <= cp->a2->u.l)
r = 1;
else {
cp->startline = 0;
r = 0;
}
break;
default:
if (MATCH(cp->a2)) {
cp->startline = 0;
lastaddr = 1;
r = 1;
} else if (cp->a2->type == AT_LINE &&
linenum > cp->a2->u.l) {
/*
* We missed the 2nd address due to a
* branch, so just close the range and
* return false.
*/
cp->startline = 0;
r = 0;
} else
r = 1;
}
} else if (MATCH(cp->a1)) {
/*
* If the second address is a number less than or