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-rw-r--r--miscutils/bc.c69
1 files changed, 34 insertions, 35 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c
index 74847a328..bc2947161 100644
--- a/miscutils/bc.c
+++ b/miscutils/bc.c
@@ -7058,50 +7058,49 @@ static BC_STATUS zbc_vm_stdin(void)
comment = false;
str = 0;
for (;;) {
- size_t len;
+ char *string;
bc_read_line(&buf);
- len = buf.len - 1;
- if (len == 0) // "" buf means EOF
+ if (buf.len <= 1) // "" buf means EOF
break;
- if (len == 1) {
- if (str && buf.v[0] == G.send)
- str -= 1;
- else if (buf.v[0] == G.sbgn)
- str += 1;
- } else {
- char *string = buf.v;
- while (*string) {
- char c = *string;
- if (string == buf.v || string[-1] != '\\') {
- // checking applet type is cheaper than accessing sbgn/send
- if (IS_BC) // bc: sbgn = send = '"'
- str ^= (c == '"');
- else { // dc: sbgn = '[', send = ']'
- if (c == ']')
- str -= 1;
- else if (c == '[')
- str += 1;
- }
- }
- string++;
- if (c == '/' && *string == '*') {
- comment = true;
- string++;
- continue;
- }
- if (c == '*' && *string == '/') {
- comment = false;
- string++;
+
+ string = buf.v;
+ while (*string) {
+ char c = *string;
+ if (string == buf.v || string[-1] != '\\') {
+ // checking applet type is cheaper than accessing sbgn/send
+ if (IS_BC) // bc: sbgn = send = '"'
+ str ^= (c == '"');
+ else { // dc: sbgn = '[', send = ']'
+ if (c == ']')
+ str -= 1;
+ else if (c == '[')
+ str += 1;
}
}
- if (str || comment || string[-2] == '\\') {
- bc_vec_concat(&buffer, buf.v);
+ string++;
+ if (c == '/' && *string == '*') {
+ comment = true;
+ string++;
continue;
}
+ if (c == '*' && *string == '/') {
+ comment = false;
+ string++;
+ }
}
-
bc_vec_concat(&buffer, buf.v);
+ if (str || comment)
+ continue;
+
+ // Check for backslash+newline.
+ // we do not check that last char is '\n' -
+ // if it is not, then it's EOF, and looping back
+ // to bc_read_line() will detect it:
+ string -= 2;
+ if (string >= buf.v && *string == '\\')
+ continue;
+
s = zbc_vm_process(buffer.v);
if (s) {
if (ENABLE_FEATURE_CLEAN_UP && !G_ttyin) {