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-rw-r--r--shell/ash.c90
1 files changed, 85 insertions, 5 deletions
diff --git a/shell/ash.c b/shell/ash.c
index 9b3f83e..8a213d8 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -7294,7 +7294,7 @@ cmdputs(const char *s)
cmdnextc = q;
}
-//#define CMDTXT_TABLE
+#define CMDTXT_TABLE
#ifdef CMDTXT_TABLE
/*
* To collect a lot of redundant code in cmdtxt() case statements, we
@@ -8710,8 +8710,8 @@ static void sizenodelist (const struct nodelist *);
static struct nodelist *copynodelist (const struct nodelist *);
static char *nodesavestr (const char *);
-//#define CALCSIZE_TABLE
-//#define COPYNODE_TABLE
+#define CALCSIZE_TABLE
+#define COPYNODE_TABLE
#if defined(CALCSIZE_TABLE) || defined(COPYNODE_TABLE)
/*
* To collect a lot of redundant code in case statements for copynode()
@@ -10337,6 +10337,86 @@ out:
* have parseword (readtoken1?) handle both words and redirection.]
*/
+#define NEW_xxreadtoken
+#ifdef NEW_xxreadtoken
+
+static const char xxreadtoken_chars[] = "\n()&|;"; /* singles must be first! */
+static const char xxreadtoken_tokens[] = {
+ TNL, TLP, TRP, /* only single occurrence allowed */
+ TBACKGND, TPIPE, TSEMI, /* if single occurrence */
+ TEOF, /* corresponds to trailing nul */
+ TAND, TOR, TENDCASE, /* if double occurrence */
+};
+
+#define xxreadtoken_doubles \
+ (sizeof(xxreadtoken_tokens) - sizeof(xxreadtoken_chars))
+#define xxreadtoken_singles \
+ (sizeof(xxreadtoken_chars) - xxreadtoken_doubles - 1)
+
+static int
+xxreadtoken() {
+ int c;
+
+ if (tokpushback) {
+ tokpushback = 0;
+ return lasttoken;
+ }
+ if (needprompt) {
+ setprompt(2);
+ needprompt = 0;
+ }
+ startlinno = plinno;
+ for (;;) { /* until token or start of word found */
+ c = pgetc_macro();
+
+ if ((c!=' ') && (c!='\t')
+#ifdef ASH_ALIAS
+ && (c!=PEOA)
+#endif
+ ) {
+ if (c=='#') {
+ while ((c = pgetc()) != '\n' && c != PEOF);
+ pungetc();
+ } else if (c=='\\') {
+ if (pgetc() != '\n') {
+ pungetc();
+ goto READTOKEN1;
+ }
+ startlinno = ++plinno;
+ setprompt(doprompt ? 2 : 0);
+ } else {
+ const char *p
+ = xxreadtoken_chars + sizeof(xxreadtoken_chars) - 1;
+
+ if (c!=PEOF) {
+ if (c=='\n') {
+ plinno++;
+ needprompt = doprompt;
+ }
+
+ p = strchr(xxreadtoken_chars, c);
+ if (p == NULL) {
+ READTOKEN1:
+ return readtoken1(c, BASESYNTAX, (char *)NULL, 0);
+ }
+
+ if (p-xxreadtoken_chars >= xxreadtoken_singles) {
+ if (pgetc() == *p) { /* double occurrence? */
+ p += xxreadtoken_doubles + 1;
+ } else {
+ pungetc();
+ }
+ }
+ }
+
+ return lasttoken = xxreadtoken_tokens[p-xxreadtoken_chars];
+ }
+ }
+ }
+}
+
+
+#else
#define RETURN(token) return lasttoken = token
static int
@@ -10408,7 +10488,7 @@ breakloop:
return readtoken1(c, BASESYNTAX, (char *)NULL, 0);
#undef RETURN
}
-
+#endif
/*
@@ -12681,7 +12761,7 @@ findvar(struct var **vpp, const char *name)
/*
* Copyright (c) 1999 Herbert Xu <herbert@debian.org>
* This file contains code for the times builtin.
- * $Id: ash.c,v 1.24 2001/09/06 18:00:41 andersen Exp $
+ * $Id: ash.c,v 1.25 2001/09/11 01:14:02 mjn3 Exp $
*/
static int timescmd (int argc, char **argv)
{