diff options
Diffstat (limited to 'sh/syntax.c')
| -rw-r--r-- | sh/syntax.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/sh/syntax.c b/sh/syntax.c new file mode 100644 index 000000000..094f6745d --- /dev/null +++ b/sh/syntax.c | |||
| @@ -0,0 +1,102 @@ | |||
| 1 | /* $NetBSD: syntax.c,v 1.1 2004/01/17 17:38:12 dsl Exp $ */ | ||
| 2 | |||
| 3 | #include "shell.h" | ||
| 4 | #include "syntax.h" | ||
| 5 | #include "parser.h" | ||
| 6 | #include <limits.h> | ||
| 7 | |||
| 8 | #if CWORD != 0 | ||
| 9 | #error initialisation assumes 'CWORD' is zero | ||
| 10 | #endif | ||
| 11 | |||
| 12 | #define ndx(ch) (ch + 1 - CHAR_MIN) | ||
| 13 | #define set(ch, val) [ndx(ch)] = val, | ||
| 14 | #define set_range(s, e, val) [ndx(s) ... ndx(e)] = val, | ||
| 15 | |||
| 16 | /* syntax table used when not in quotes */ | ||
| 17 | const char basesyntax[257] = { CEOF, | ||
| 18 | set_range(CTL_FIRST, CTL_LAST, CCTL) | ||
| 19 | set('\n', CNL) | ||
| 20 | set('\\', CBACK) | ||
| 21 | set('\'', CSQUOTE) | ||
| 22 | set('"', CDQUOTE) | ||
| 23 | set('`', CBQUOTE) | ||
| 24 | set('$', CVAR) | ||
| 25 | set('}', CENDVAR) | ||
| 26 | set('<', CSPCL) | ||
| 27 | set('>', CSPCL) | ||
| 28 | set('(', CSPCL) | ||
| 29 | set(')', CSPCL) | ||
| 30 | set(';', CSPCL) | ||
| 31 | set('&', CSPCL) | ||
| 32 | set('|', CSPCL) | ||
| 33 | set(' ', CSPCL) | ||
| 34 | set('\t', CSPCL) | ||
| 35 | }; | ||
| 36 | |||
| 37 | /* syntax table used when in double quotes */ | ||
| 38 | const char dqsyntax[257] = { CEOF, | ||
| 39 | set_range(CTL_FIRST, CTL_LAST, CCTL) | ||
| 40 | set('\n', CNL) | ||
| 41 | set('\\', CBACK) | ||
| 42 | set('"', CDQUOTE) | ||
| 43 | set('`', CBQUOTE) | ||
| 44 | set('$', CVAR) | ||
| 45 | set('}', CENDVAR) | ||
| 46 | /* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */ | ||
| 47 | set('!', CCTL) | ||
| 48 | set('*', CCTL) | ||
| 49 | set('?', CCTL) | ||
| 50 | set('[', CCTL) | ||
| 51 | set('=', CCTL) | ||
| 52 | set('~', CCTL) | ||
| 53 | set(':', CCTL) | ||
| 54 | set('/', CCTL) | ||
| 55 | set('-', CCTL) | ||
| 56 | }; | ||
| 57 | |||
| 58 | /* syntax table used when in single quotes */ | ||
| 59 | const char sqsyntax[257] = { CEOF, | ||
| 60 | set_range(CTL_FIRST, CTL_LAST, CCTL) | ||
| 61 | set('\n', CNL) | ||
| 62 | set('\'', CSQUOTE) | ||
| 63 | /* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */ | ||
| 64 | set('!', CCTL) | ||
| 65 | set('*', CCTL) | ||
| 66 | set('?', CCTL) | ||
| 67 | set('[', CCTL) | ||
| 68 | set('=', CCTL) | ||
| 69 | set('~', CCTL) | ||
| 70 | set(':', CCTL) | ||
| 71 | set('/', CCTL) | ||
| 72 | set('-', CCTL) | ||
| 73 | }; | ||
| 74 | |||
| 75 | /* syntax table used when in arithmetic */ | ||
| 76 | const char arisyntax[257] = { CEOF, | ||
| 77 | set_range(CTL_FIRST, CTL_LAST, CCTL) | ||
| 78 | set('\n', CNL) | ||
| 79 | set('\\', CBACK) | ||
| 80 | set('`', CBQUOTE) | ||
| 81 | set('\'', CSQUOTE) | ||
| 82 | set('"', CDQUOTE) | ||
| 83 | set('$', CVAR) | ||
| 84 | set('}', CENDVAR) | ||
| 85 | set('(', CLP) | ||
| 86 | set(')', CRP) | ||
| 87 | }; | ||
| 88 | |||
| 89 | /* character classification table */ | ||
| 90 | const char is_type[257] = { 0, | ||
| 91 | set_range('0', '9', ISDIGIT) | ||
| 92 | set_range('a', 'z', ISLOWER) | ||
| 93 | set_range('A', 'Z', ISUPPER) | ||
| 94 | set('_', ISUNDER) | ||
| 95 | set('#', ISSPECL) | ||
| 96 | set('?', ISSPECL) | ||
| 97 | set('$', ISSPECL) | ||
| 98 | set('!', ISSPECL) | ||
| 99 | set('-', ISSPECL) | ||
| 100 | set('*', ISSPECL) | ||
| 101 | set('@', ISSPECL) | ||
| 102 | }; | ||