diff options
| author | Christian Weisgerber <naddy@cvs.openbsd.org> | 2010-07-01 17:04:25 +0000 |
|---|---|---|
| committer | Christian Weisgerber <naddy@cvs.openbsd.org> | 2010-07-01 17:04:25 +0000 |
| commit | 182e947e13afa8bdf48abca878046f822e1d324d (patch) | |
| tree | 206c652ba58933ad90ad0e72b6235e23499e30b0 /usr.bin | |
| parent | 3269b215277e7b004ef6c5cb1b64da4552cc625c (diff) | |
Follow POSIX (IEEE Std 1003.1, 2004 Edition) in the implementation
of the y (translate) command.
"If a backslash character is immediately followed by a backslash
character in string1 or string2, the two backslash characters shall
be counted as a single literal backslash character"
From FreeBSD; ok millert@ halex@
Diffstat (limited to 'usr.bin')
| -rw-r--r-- | usr.bin/sed/compile.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/usr.bin/sed/compile.c b/usr.bin/sed/compile.c index 4b5b33b95db..aa8ee56dca4 100644 --- a/usr.bin/sed/compile.c +++ b/usr.bin/sed/compile.c @@ -1,4 +1,4 @@ -/* $OpenBSD: compile.c,v 1.32 2010/07/01 17:02:02 naddy Exp $ */ +/* $OpenBSD: compile.c,v 1.33 2010/07/01 17:04:24 naddy Exp $ */ /*- * Copyright (c) 1992 Diomidis Spinellis. @@ -59,7 +59,7 @@ static struct labhash { static char *compile_addr(char *, struct s_addr *); static char *compile_ccl(char **, char *); -static char *compile_delimited(char *, char *); +static char *compile_delimited(char *, char *, int); static char *compile_flags(char *, struct s_subst *); static char *compile_re(char *, regex_t **); static char *compile_subst(char *, struct s_subst *); @@ -345,7 +345,7 @@ nonsel: /* Now parse the command */ * with the processed string. */ static char * -compile_delimited(char *p, char *d) +compile_delimited(char *p, char *d, int is_tr) { char c; @@ -370,7 +370,10 @@ compile_delimited(char *p, char *d) p += 2; continue; } else if (*p == '\\' && p[1] == '\\') { - *d++ = *p++; + if (is_tr) + p++; + else + *d++ = *p++; } else if (*p == c) { *d = '\0'; return (p + 1); @@ -427,7 +430,7 @@ compile_re(char *p, regex_t **repp) char *re; re = xmalloc(strlen(p) + 1); /* strlen(re) <= strlen(p) */ - p = compile_delimited(p, re); + p = compile_delimited(p, re, 0); if (p && strlen(re) == 0) { *repp = NULL; free(re); @@ -617,13 +620,13 @@ compile_tr(char *p, char **transtab) err(COMPILE, "transform pattern can not be delimited by newline or backslash"); old = xmalloc(strlen(p) + 1); - p = compile_delimited(p, old); + p = compile_delimited(p, old, 1); if (p == NULL) { err(COMPILE, "unterminated transform source string"); goto bad; } new = xmalloc(strlen(p) + 1); - p = compile_delimited(--p, new); + p = compile_delimited(--p, new, 1); if (p == NULL) { err(COMPILE, "unterminated transform target string"); goto bad; |