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authorDenys Vlasenko2010-09-09 13:32:21 +0200
committerDenys Vlasenko2010-09-09 13:32:21 +0200
commit5b6210cf492dba4474d83a138c95b1267777826b (patch)
treee1160764010d91c68818c58238fa8dc1c8f71dad /shell
parent850b15bfafb08d24ae3e55f5ca8b848b17958f8a (diff)
downloadbusybox-5b6210cf492dba4474d83a138c95b1267777826b.zip
busybox-5b6210cf492dba4474d83a138c95b1267777826b.tar.gz
hush: simplification in parse_stream, parse_stream_dquoted
function old new delta parse_stream 2354 2369 +15 parse_stream_dquoted 250 228 -22 Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Diffstat (limited to 'shell')
-rw-r--r--shell/hush.c28
1 files changed, 14 insertions, 14 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 5af5259..b19d4ea 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -3151,16 +3151,16 @@ static char *fetch_till_str(o_string *as_string,
int heredoc_flags)
{
o_string heredoc = NULL_O_STRING;
- int past_EOL = 0;
+ unsigned past_EOL;
int prev = 0; /* not \ */
int ch;
goto jump_in;
while (1) {
ch = i_getch(input);
- nommu_addchr(as_string, ch);
- if (ch == '\n'
- /* TODO: or EOF? (heredoc delimiter may end with <eof>, not only <eol>) */
+ if (ch != EOF)
+ nommu_addchr(as_string, ch);
+ if ((ch == '\n' || ch == EOF)
&& ((heredoc_flags & HEREDOC_QUOTED) || prev != '\\')
) {
if (strcmp(heredoc.data + past_EOL, word) == 0) {
@@ -3168,28 +3168,29 @@ static char *fetch_till_str(o_string *as_string,
debug_printf_parse("parsed heredoc '%s'\n", heredoc.data);
return heredoc.data;
}
- do {
- o_addchr(&heredoc, '\n');
- prev = 0; /* not \ */
- past_EOL = heredoc.length;
+ while (ch == '\n') {
+ o_addchr(&heredoc, ch);
+ prev = ch;
jump_in:
+ past_EOL = heredoc.length;
do {
ch = i_getch(input);
- nommu_addchr(as_string, ch);
+ if (ch != EOF)
+ nommu_addchr(as_string, ch);
} while ((heredoc_flags & HEREDOC_SKIPTABS) && ch == '\t');
- } while (ch == '\n');
+ }
}
if (ch == EOF) {
o_free_unsafe(&heredoc);
return NULL;
}
o_addchr(&heredoc, ch);
+ nommu_addchr(as_string, ch);
if (prev == '\\' && ch == '\\')
/* Correctly handle foo\\<eol> (not a line cont.) */
prev = 0; /* not \ */
else
prev = ch;
- nommu_addchr(as_string, ch);
}
}
@@ -3748,8 +3749,6 @@ static int parse_stream_dquoted(o_string *as_string,
if (ch != EOF)
nommu_addchr(as_string, ch);
if (ch == dquote_end) { /* may be only '"' or EOF */
- if (dest->o_assignment == NOT_ASSIGNMENT)
- dest->o_expflags ^= EXP_FLAG_ESC_GLOB_CHARS;
debug_printf_parse("parse_stream_dquoted return 0\n");
return 0;
}
@@ -4159,9 +4158,10 @@ static struct pipe *parse_stream(char **pstring,
case '"':
dest.has_quoted_part = 1;
if (dest.o_assignment == NOT_ASSIGNMENT)
- dest.o_expflags ^= EXP_FLAG_ESC_GLOB_CHARS;
+ dest.o_expflags |= EXP_FLAG_ESC_GLOB_CHARS;
if (parse_stream_dquoted(&ctx.as_string, &dest, input, '"'))
goto parse_error;
+ dest.o_expflags &= ~EXP_FLAG_ESC_GLOB_CHARS;
break;
#if ENABLE_HUSH_TICK
case '`': {