diff options
| -rw-r--r-- | ash.c | 90 | ||||
| -rw-r--r-- | shell/ash.c | 90 |
2 files changed, 170 insertions, 10 deletions
@@ -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) { 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) { |