103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
/* $NetBSD: syntax.c,v 1.1 2004/01/17 17:38:12 dsl Exp $ */
|
|
|
|
#include "shell.h"
|
|
#include "syntax.h"
|
|
#include "parser.h"
|
|
#include <limits.h>
|
|
|
|
#if CWORD != 0
|
|
#error initialisation assumes 'CWORD' is zero
|
|
#endif
|
|
|
|
#define ndx(ch) (ch + 1 - CHAR_MIN)
|
|
#define set(ch, val) [ndx(ch)] = val,
|
|
#define set_range(s, e, val) [ndx(s) ... ndx(e)] = val,
|
|
|
|
/* syntax table used when not in quotes */
|
|
const char basesyntax[257] = { CEOF,
|
|
set_range(CTL_FIRST, CTL_LAST, CCTL)
|
|
set('\n', CNL)
|
|
set('\\', CBACK)
|
|
set('\'', CSQUOTE)
|
|
set('"', CDQUOTE)
|
|
set('`', CBQUOTE)
|
|
set('$', CVAR)
|
|
set('}', CENDVAR)
|
|
set('<', CSPCL)
|
|
set('>', CSPCL)
|
|
set('(', CSPCL)
|
|
set(')', CSPCL)
|
|
set(';', CSPCL)
|
|
set('&', CSPCL)
|
|
set('|', CSPCL)
|
|
set(' ', CSPCL)
|
|
set('\t', CSPCL)
|
|
};
|
|
|
|
/* syntax table used when in double quotes */
|
|
const char dqsyntax[257] = { CEOF,
|
|
set_range(CTL_FIRST, CTL_LAST, CCTL)
|
|
set('\n', CNL)
|
|
set('\\', CBACK)
|
|
set('"', CDQUOTE)
|
|
set('`', CBQUOTE)
|
|
set('$', CVAR)
|
|
set('}', CENDVAR)
|
|
/* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */
|
|
set('!', CCTL)
|
|
set('*', CCTL)
|
|
set('?', CCTL)
|
|
set('[', CCTL)
|
|
set('=', CCTL)
|
|
set('~', CCTL)
|
|
set(':', CCTL)
|
|
set('/', CCTL)
|
|
set('-', CCTL)
|
|
};
|
|
|
|
/* syntax table used when in single quotes */
|
|
const char sqsyntax[257] = { CEOF,
|
|
set_range(CTL_FIRST, CTL_LAST, CCTL)
|
|
set('\n', CNL)
|
|
set('\'', CSQUOTE)
|
|
/* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */
|
|
set('!', CCTL)
|
|
set('*', CCTL)
|
|
set('?', CCTL)
|
|
set('[', CCTL)
|
|
set('=', CCTL)
|
|
set('~', CCTL)
|
|
set(':', CCTL)
|
|
set('/', CCTL)
|
|
set('-', CCTL)
|
|
};
|
|
|
|
/* syntax table used when in arithmetic */
|
|
const char arisyntax[257] = { CEOF,
|
|
set_range(CTL_FIRST, CTL_LAST, CCTL)
|
|
set('\n', CNL)
|
|
set('\\', CBACK)
|
|
set('`', CBQUOTE)
|
|
set('\'', CSQUOTE)
|
|
set('"', CDQUOTE)
|
|
set('$', CVAR)
|
|
set('}', CENDVAR)
|
|
set('(', CLP)
|
|
set(')', CRP)
|
|
};
|
|
|
|
/* character classification table */
|
|
const char is_type[257] = { 0,
|
|
set_range('0', '9', ISDIGIT)
|
|
set_range('a', 'z', ISLOWER)
|
|
set_range('A', 'Z', ISUPPER)
|
|
set('_', ISUNDER)
|
|
set('#', ISSPECL)
|
|
set('?', ISSPECL)
|
|
set('$', ISSPECL)
|
|
set('!', ISSPECL)
|
|
set('-', ISSPECL)
|
|
set('*', ISSPECL)
|
|
set('@', ISSPECL)
|
|
};
|