-static void expari(int);
-#endif
-
-/* eval.h */
-
-
-
-struct backcmd { /* result of evalbackcmd */
- int fd; /* file descriptor to read from */
- char *buf; /* buffer */
- int nleft; /* number of chars in buffer */
- struct job *jp; /* job structure for command */
-};
-
-
-static void freefunc(struct funcnode *);
-/* parser.h */
-
-/* control characters in argument strings */
-#define CTL_FIRST '\201' /* first 'special' character */
-#define CTLESC '\201' /* escape next character */
-#define CTLVAR '\202' /* variable defn */
-#define CTLENDVAR '\203'
-#define CTLBACKQ '\204'
-#define CTLQUOTE 01 /* ored with CTLBACKQ code if in quotes */
-/* CTLBACKQ | CTLQUOTE == '\205' */
-#define CTLARI '\206' /* arithmetic expression */
-#define CTLENDARI '\207'
-#define CTLQUOTEMARK '\210'
-#define CTL_LAST '\210' /* last 'special' character */
-
-/* variable substitution byte (follows CTLVAR) */
-#define VSTYPE 0x0f /* type of variable substitution */
-#define VSNUL 0x10 /* colon--treat the empty string as unset */
-#define VSQUOTE 0x80 /* inside double quotes--suppress splitting */
-
-/* values of VSTYPE field */
-#define VSNORMAL 0x1 /* normal variable: $var or ${var} */
-#define VSMINUS 0x2 /* ${var-text} */
-#define VSPLUS 0x3 /* ${var+text} */
-#define VSQUESTION 0x4 /* ${var?message} */
-#define VSASSIGN 0x5 /* ${var=text} */
-#define VSTRIMRIGHT 0x6 /* ${var%pattern} */
-#define VSTRIMRIGHTMAX 0x7 /* ${var%%pattern} */
-#define VSTRIMLEFT 0x8 /* ${var#pattern} */
-#define VSTRIMLEFTMAX 0x9 /* ${var##pattern} */
-#define VSLENGTH 0xa /* ${#var} */
-
-/* values of checkkwd variable */
-#define CHKALIAS 0x1
-#define CHKKWD 0x2
-#define CHKNL 0x4
-
-#define IBUFSIZ (BUFSIZ + 1)
-
-/*
- * NEOF is returned by parsecmd when it encounters an end of file. It
- * must be distinct from NULL, so we use the address of a variable that
- * happens to be handy.
- */
-static int plinno = 1; /* input line number */
-
-/* number of characters left in input buffer */
-static int parsenleft; /* copy of parsefile->nleft */
-static int parselleft; /* copy of parsefile->lleft */
-
-/* next character in input buffer */
-static char *parsenextc; /* copy of parsefile->nextc */
-
-#define basebuf bb_common_bufsiz1 /* buffer for top level input file */
-
-
-static int tokpushback; /* last token pushed back */
-#define NEOF ((union node *)&tokpushback)
-static int parsebackquote; /* nonzero if we are inside backquotes */
-static int lasttoken; /* last token read */
-static char *wordtext; /* text of last word returned by readtoken */
-static int checkkwd;
-static struct nodelist *backquotelist;
-static union node *redirnode;
-static struct heredoc *heredoc;
-static int quoteflag; /* set if (part of) last token was quoted */
-
-static void fixredir(union node *, const char *, int);
-static char *endofname(const char *);
-
-/* shell.h */
-
-static const char spcstr[] = " ";
-static const char dolatstr[] = { CTLVAR, VSNORMAL|VSQUOTE, '@', '=', '\0' };
-
-#if !defined(__GNUC__) || (__GNUC__ == 2 && __GNUC_MINOR__ < 96)
-#define __builtin_expect(x, expected_value) (x)
-#endif
-
-#define xlikely(x) __builtin_expect((x),1)
-
-
-#define TEOF 0
-#define TNL 1
-#define TREDIR 2
-#define TWORD 3
-#define TSEMI 4
-#define TBACKGND 5
-#define TAND 6
-#define TOR 7
-#define TPIPE 8
-#define TLP 9
-#define TRP 10
-#define TENDCASE 11
-#define TENDBQUOTE 12
-#define TNOT 13
-#define TCASE 14
-#define TDO 15
-#define TDONE 16
-#define TELIF 17
-#define TELSE 18
-#define TESAC 19
-#define TFI 20
-#define TFOR 21
-#define TIF 22
-#define TIN 23
-#define TTHEN 24
-#define TUNTIL 25
-#define TWHILE 26
-#define TBEGIN 27
-#define TEND 28
-
-/* first char is indicating which tokens mark the end of a list */
-static const char *const tokname_array[] = {
- "\1end of file",
- "\0newline",
- "\0redirection",
- "\0word",
- "\0;",
- "\0&",
- "\0&&",
- "\0||",
- "\0|",
- "\0(",
- "\1)",
- "\1;;",
- "\1`",
-#define KWDOFFSET 13
- /* the following are keywords */
- "\0!",
- "\0case",
- "\1do",
- "\1done",
- "\1elif",
- "\1else",
- "\1esac",
- "\1fi",
- "\0for",
- "\0if",
- "\0in",
- "\1then",
- "\0until",
- "\0while",
- "\0{",
- "\1}",
-};
-
-static const char *
-tokname(int tok)
-{
- static char buf[16];
-
- if (tok >= TSEMI)
- buf[0] = '"';
- sprintf(buf + (tok >= TSEMI), "%s%c",
- tokname_array[tok] + 1, (tok >= TSEMI ? '"' : 0));
- return buf;
-}
-
-/* Wrapper around strcmp for qsort/bsearch/... */
-static int
-pstrcmp(const void *a, const void *b)
-{
- return strcmp((const char *) a, (*(const char *const *) b) + 1);
-}
-
-static const char *const *
-findkwd(const char *s)
-{
- return bsearch(s, tokname_array + KWDOFFSET,
- (sizeof(tokname_array) / sizeof(const char *)) - KWDOFFSET,
- sizeof(const char *), pstrcmp);
-}
-
-/* Syntax classes */
-#define CWORD 0 /* character is nothing special */
-#define CNL 1 /* newline character */
-#define CBACK 2 /* a backslash character */
-#define CSQUOTE 3 /* single quote */
-#define CDQUOTE 4 /* double quote */
-#define CENDQUOTE 5 /* a terminating quote */
-#define CBQUOTE 6 /* backwards single quote */
-#define CVAR 7 /* a dollar sign */
-#define CENDVAR 8 /* a '}' character */
-#define CLP 9 /* a left paren in arithmetic */
-#define CRP 10 /* a right paren in arithmetic */
-#define CENDFILE 11 /* end of file */
-#define CCTL 12 /* like CWORD, except it must be escaped */
-#define CSPCL 13 /* these terminate a word */
-#define CIGN 14 /* character should be ignored */
-
-#if ENABLE_ASH_ALIAS
-#define SYNBASE 130
-#define PEOF -130
-#define PEOA -129
-#define PEOA_OR_PEOF PEOA
-#else
-#define SYNBASE 129
-#define PEOF -129
-#define PEOA_OR_PEOF PEOF
-#endif
-
-/* C99 say: "char" declaration may be signed or unsigned default */
-#define SC2INT(chr2may_be_negative_int) (int)((signed char)chr2may_be_negative_int)
-
-/*
- * is_special(c) evaluates to 1 for c in "!#$*-0123456789?@"; 0 otherwise
- * (assuming ascii char codes, as the original implementation did)
- */
-#define is_special(c) \
- ( (((unsigned int)c) - 33 < 32) \
- && ((0xc1ff920dUL >> (((unsigned int)c) - 33)) & 1))
-
-#define digit_val(c) ((c) - '0')
-
-/*
- * This file was generated by the mksyntax program.
- */
-
-#if ENABLE_ASH_OPTIMIZE_FOR_SIZE
-#define USE_SIT_FUNCTION
-#endif
-
-/* number syntax index */
-#define BASESYNTAX 0 /* not in quotes */
-#define DQSYNTAX 1 /* in double quotes */
-#define SQSYNTAX 2 /* in single quotes */
-#define ARISYNTAX 3 /* in arithmetic */
-
-#if ENABLE_ASH_MATH_SUPPORT
-static const char S_I_T[][4] = {
-#if ENABLE_ASH_ALIAS
- {CSPCL, CIGN, CIGN, CIGN}, /* 0, PEOA */
-#endif
- {CSPCL, CWORD, CWORD, CWORD}, /* 1, ' ' */
- {CNL, CNL, CNL, CNL}, /* 2, \n */
- {CWORD, CCTL, CCTL, CWORD}, /* 3, !*-/:=?[]~ */
- {CDQUOTE, CENDQUOTE, CWORD, CWORD}, /* 4, '"' */
- {CVAR, CVAR, CWORD, CVAR}, /* 5, $ */
- {CSQUOTE, CWORD, CENDQUOTE, CWORD}, /* 6, "'" */
- {CSPCL, CWORD, CWORD, CLP}, /* 7, ( */
- {CSPCL, CWORD, CWORD, CRP}, /* 8, ) */
- {CBACK, CBACK, CCTL, CBACK}, /* 9, \ */
- {CBQUOTE, CBQUOTE, CWORD, CBQUOTE}, /* 10, ` */
- {CENDVAR, CENDVAR, CWORD, CENDVAR}, /* 11, } */
-#ifndef USE_SIT_FUNCTION
- {CENDFILE, CENDFILE, CENDFILE, CENDFILE}, /* 12, PEOF */
- {CWORD, CWORD, CWORD, CWORD}, /* 13, 0-9A-Za-z */
- {CCTL, CCTL, CCTL, CCTL} /* 14, CTLESC ... */
+static const char S_I_T[][4] = {
+#if ENABLE_ASH_ALIAS
+ { CSPCL, CIGN, CIGN, CIGN }, /* 0, PEOA */
+#endif
+ { CSPCL, CWORD, CWORD, CWORD }, /* 1, ' ' */
+ { CNL, CNL, CNL, CNL }, /* 2, \n */
+ { CWORD, CCTL, CCTL, CWORD }, /* 3, !*-/:=?[]~ */
+ { CDQUOTE, CENDQUOTE, CWORD, CWORD }, /* 4, '"' */
+ { CVAR, CVAR, CWORD, CVAR }, /* 5, $ */
+ { CSQUOTE, CWORD, CENDQUOTE, CWORD }, /* 6, "'" */
+ { CSPCL, CWORD, CWORD, CLP }, /* 7, ( */
+ { CSPCL, CWORD, CWORD, CRP }, /* 8, ) */
+ { CBACK, CBACK, CCTL, CBACK }, /* 9, \ */
+ { CBQUOTE, CBQUOTE, CWORD, CBQUOTE }, /* 10, ` */
+ { CENDVAR, CENDVAR, CWORD, CENDVAR }, /* 11, } */
+#ifndef USE_SIT_FUNCTION
+ { CENDFILE, CENDFILE, CENDFILE, CENDFILE }, /* 12, PEOF */
+ { CWORD, CWORD, CWORD, CWORD }, /* 13, 0-9A-Za-z */
+ { CCTL, CCTL, CCTL, CCTL } /* 14, CTLESC ... */