ash: add/improve comments, no code changes

1 files changed, 5 insertions, 3 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 1de989ef3..b63a243c9 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -12618,14 +12618,16 @@ readcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
                 }
                 if (c == '\n')
                         break;
+                /* $IFS splitting */
+/* http://www.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_06_05 */
                 is_ifs = strchr(ifs, c);
                 if (startword && is_ifs) {
                         if (isspace(c))
                                 continue;
-                        /* non-space ifs char */
+                        /* it is a non-space ifs char */
                         startword--;
                         if (startword == 1) /* first one? */
-                                continue;
+                                continue; /* yes, it is not next word yet */
                 }
                 startword = 0;
                 if (ap[1] != NULL && is_ifs) {
@@ -12634,7 +12636,7 @@ readcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
                         beg = stackblock();
                         setvar(*ap, beg, 0);
                         ap++;
-                        /* can we skip one non-space ifs? (2: yes) */
+                        /* can we skip one non-space ifs char? (2: yes) */
                         startword = isspace(c) ? 2 : 1;
                         STARTSTACKSTR(p);
                         continue;