commit 86f0bd836d6ae1320126ed4c8d46afa628f5beec
parent 06b6530a32e99483eec6a54b9510de6f40d0e6f0
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date: Thu, 25 Jan 2018 21:34:08 +0100
Merge branch 'master' of ssh://simple-cc.org/var/gitrepos/scc
Diffstat:
M | as/parser.c | | | 53 | ++++++++++++++++++++++++++++++++++++++++++----------- |
1 file changed, 42 insertions(+), 11 deletions(-)
diff --git a/as/parser.c b/as/parser.c
@@ -361,27 +361,58 @@ extract(char *s, size_t len, struct line *lp)
return r;
}
+static void
+comment(FILE *fp)
+{
+ int c;
+
+ while ((c = getc(fp)) != EOF) {
+ if (c != '*')
+ continue;
+ if ((c = getc(fp)) == '/')
+ return;
+ ungetc(c, fp);
+ }
+}
+
+static size_t
+getline(FILE *fp, char buff[MAXLINE])
+{
+ int c;
+ char *bp;
+
+ for (bp = buff; (c = getc(fp)) != EOF; *bp++ = c) {
+ if (c == '\n')
+ break;
+ if (c == '/') {
+ if ((c = getc(fp)) != '*') {
+ ungetc(c, fp);
+ } else {
+ comment(fp);
+ c = ' ';
+ }
+ } else if (c > UCHAR_MAX) {
+ error("invalid character '%x'", c);
+ }
+ if (bp == &buff[MAXLINE])
+ error("line too long");
+ }
+ return bp - buff;
+}
+
int
nextline(FILE *fp, struct line *lp)
{
size_t n;
- char *p;
static char buff[MAXLINE];
repeat:
- if (!fgets(buff, sizeof(buff), fp))
+ if (feof(fp))
return 0;
-
+ if ((n = getline(fp, buff)) == 0)
+ goto repeat;
if (++lineno == 0)
die("as: file too long");
-
- n = strlen(buff);
- if (n == 0)
- goto repeat;
- if (buff[n-1] != '\n')
- error("line too long");
- buff[n-1] = '\0';
-
if (extract(buff, n, lp) == 0)
goto repeat;
return 1;