d90bee9749
/etc/profile enables by default tabcompletion, as well as emacs mode,
in order to keep the old MINIX ash behavior.
Note: The shell now refuses to source a script without a relative or
absolute path.
This means:
- '. myscript.sh' fails, while
- '. ./myscript.sh' succeeds
Change-Id: I0be89b0747bd005e4c05cadb937af86883627dc6
105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/* $NetBSD: syntax.c,v 1.3 2012/03/28 20:11:25 christos Exp $ */
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: syntax.c,v 1.3 2012/03/28 20:11:25 christos Exp $");
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#include <limits.h>
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#include "shell.h"
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#include "syntax.h"
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#include "parser.h"
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#if CWORD != 0
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#error initialisation assumes 'CWORD' is zero
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#endif
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#define ndx(ch) (ch + 1 - CHAR_MIN)
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#define set(ch, val) [ndx(ch)] = val,
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#define set_range(s, e, val) [ndx(s) ... ndx(e)] = val,
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/* syntax table used when not in quotes */
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const char basesyntax[257] = { CEOF,
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set_range(CTL_FIRST, CTL_LAST, CCTL)
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set('\n', CNL)
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set('\\', CBACK)
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set('\'', CSQUOTE)
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set('"', CDQUOTE)
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set('`', CBQUOTE)
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set('$', CVAR)
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set('}', CENDVAR)
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set('<', CSPCL)
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set('>', CSPCL)
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set('(', CSPCL)
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set(')', CSPCL)
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set(';', CSPCL)
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set('&', CSPCL)
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set('|', CSPCL)
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set(' ', CSPCL)
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set('\t', CSPCL)
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};
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/* syntax table used when in double quotes */
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const char dqsyntax[257] = { CEOF,
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set_range(CTL_FIRST, CTL_LAST, CCTL)
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set('\n', CNL)
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set('\\', CBACK)
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set('"', CDQUOTE)
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set('`', CBQUOTE)
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set('$', CVAR)
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set('}', CENDVAR)
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/* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */
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set('!', CCTL)
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set('*', CCTL)
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set('?', CCTL)
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set('[', CCTL)
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set('=', CCTL)
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set('~', CCTL)
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set(':', CCTL)
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set('/', CCTL)
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set('-', CCTL)
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};
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/* syntax table used when in single quotes */
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const char sqsyntax[257] = { CEOF,
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set_range(CTL_FIRST, CTL_LAST, CCTL)
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set('\n', CNL)
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set('\'', CSQUOTE)
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/* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */
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set('!', CCTL)
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set('*', CCTL)
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set('?', CCTL)
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set('[', CCTL)
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set('=', CCTL)
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set('~', CCTL)
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set(':', CCTL)
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set('/', CCTL)
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set('-', CCTL)
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};
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/* syntax table used when in arithmetic */
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const char arisyntax[257] = { CEOF,
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set_range(CTL_FIRST, CTL_LAST, CCTL)
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set('\n', CNL)
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set('\\', CBACK)
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set('`', CBQUOTE)
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set('\'', CSQUOTE)
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set('"', CDQUOTE)
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set('$', CVAR)
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set('}', CENDVAR)
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set('(', CLP)
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set(')', CRP)
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};
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/* character classification table */
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const char is_type[257] = { 0,
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set_range('0', '9', ISDIGIT)
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set_range('a', 'z', ISLOWER)
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set_range('A', 'Z', ISUPPER)
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set('_', ISUNDER)
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set('#', ISSPECL)
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set('?', ISSPECL)
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set('$', ISSPECL)
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set('!', ISSPECL)
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set('-', ISSPECL)
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set('*', ISSPECL)
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set('@', ISSPECL)
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};
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