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ash: remove last "signed char"; make SIT() clearer. -12 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
parent
0337e038a9
commit
76bc2d6deb
135
shell/ash.c
135
shell/ash.c
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@ -2621,50 +2621,54 @@ pwdcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
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#endif
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#if ENABLE_SH_MATH_SUPPORT
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static const uint8_t S_I_T[][4] = {
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# if ENABLE_ASH_ALIAS
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{ CSPCL, CIGN, CIGN, CIGN }, /* 0, PEOA */
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# endif
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{ CSPCL, CWORD, CWORD, CWORD }, /* 1, ' ' */
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{ CNL, CNL, CNL, CNL }, /* 2, \n */
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{ CWORD, CCTL, CCTL, CWORD }, /* 3, !*-/:=?[]~ */
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{ CDQUOTE, CENDQUOTE, CWORD, CWORD }, /* 4, '"' */
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{ CVAR, CVAR, CWORD, CVAR }, /* 5, $ */
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{ CSQUOTE, CWORD, CENDQUOTE, CWORD }, /* 6, "'" */
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{ CSPCL, CWORD, CWORD, CLP }, /* 7, ( */
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{ CSPCL, CWORD, CWORD, CRP }, /* 8, ) */
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{ CBACK, CBACK, CCTL, CBACK }, /* 9, \ */
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{ CBQUOTE, CBQUOTE, CWORD, CBQUOTE }, /* 10, ` */
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{ CENDVAR, CENDVAR, CWORD, CENDVAR }, /* 11, } */
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# ifndef USE_SIT_FUNCTION
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{ CENDFILE, CENDFILE, CENDFILE, CENDFILE }, /* 12, PEOF */
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{ CWORD, CWORD, CWORD, CWORD }, /* 13, 0-9A-Za-z */
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{ CCTL, CCTL, CCTL, CCTL } /* 14, CTLESC ... */
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# endif
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};
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# define SIT_ITEM(a,b,c,d) (a | (b << 4) | (c << 8) | (d << 12))
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static const uint16_t S_I_T[] =
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#else
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static const uint8_t S_I_T[][3] = {
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# if ENABLE_ASH_ALIAS
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{ CSPCL, CIGN, CIGN }, /* 0, PEOA */
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# endif
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{ CSPCL, CWORD, CWORD }, /* 1, ' ' */
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{ CNL, CNL, CNL }, /* 2, \n */
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{ CWORD, CCTL, CCTL }, /* 3, !*-/:=?[]~ */
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{ CDQUOTE, CENDQUOTE, CWORD }, /* 4, '"' */
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{ CVAR, CVAR, CWORD }, /* 5, $ */
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{ CSQUOTE, CWORD, CENDQUOTE }, /* 6, "'" */
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{ CSPCL, CWORD, CWORD }, /* 7, ( */
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{ CSPCL, CWORD, CWORD }, /* 8, ) */
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{ CBACK, CBACK, CCTL }, /* 9, \ */
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{ CBQUOTE, CBQUOTE, CWORD }, /* 10, ` */
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{ CENDVAR, CENDVAR, CWORD }, /* 11, } */
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# ifndef USE_SIT_FUNCTION
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{ CENDFILE, CENDFILE, CENDFILE }, /* 12, PEOF */
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{ CWORD, CWORD, CWORD }, /* 13, 0-9A-Za-z */
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{ CCTL, CCTL, CCTL } /* 14, CTLESC ... */
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# endif
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# define SIT_ITEM(a,b,c,d) (a | (b << 4) | (c << 8))
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static const uint16_t S_I_T[] =
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#endif
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{
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#if ENABLE_ASH_ALIAS
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SIT_ITEM(CSPCL , CIGN , CIGN , CIGN ), /* 0, PEOA */
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#endif
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SIT_ITEM(CSPCL , CWORD , CWORD, CWORD ), /* 1, ' ' */
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SIT_ITEM(CNL , CNL , CNL , CNL ), /* 2, \n */
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SIT_ITEM(CWORD , CCTL , CCTL , CWORD ), /* 3, !*-/:=?[]~ */
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SIT_ITEM(CDQUOTE , CENDQUOTE, CWORD, CWORD ), /* 4, '"' */
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SIT_ITEM(CVAR , CVAR , CWORD, CVAR ), /* 5, $ */
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SIT_ITEM(CSQUOTE , CWORD , CENDQUOTE, CWORD), /* 6, "'" */
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SIT_ITEM(CSPCL , CWORD , CWORD, CLP ), /* 7, ( */
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SIT_ITEM(CSPCL , CWORD , CWORD, CRP ), /* 8, ) */
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SIT_ITEM(CBACK , CBACK , CCTL , CBACK ), /* 9, \ */
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SIT_ITEM(CBQUOTE , CBQUOTE , CWORD, CBQUOTE), /* 10, ` */
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SIT_ITEM(CENDVAR , CENDVAR , CWORD, CENDVAR), /* 11, } */
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#ifndef USE_SIT_FUNCTION
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SIT_ITEM(CENDFILE, CENDFILE , CENDFILE, CENDFILE),/* 12, PEOF */
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SIT_ITEM(CWORD , CWORD , CWORD, CWORD ), /* 13, 0-9A-Za-z */
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SIT_ITEM(CCTL , CCTL , CCTL , CCTL ) /* 14, CTLESC ... */
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#endif
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#undef SIT_ITEM
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};
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/* Constants below must match table above */
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enum {
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#if ENABLE_ASH_ALIAS
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CSPCL_CIGN_CIGN_CIGN , /* 0 */
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#endif
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CSPCL_CWORD_CWORD_CWORD , /* 1 */
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CNL_CNL_CNL_CNL , /* 2 */
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CWORD_CCTL_CCTL_CWORD , /* 3 */
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CDQUOTE_CENDQUOTE_CWORD_CWORD , /* 4 */
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CVAR_CVAR_CWORD_CVAR , /* 5 */
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CSQUOTE_CWORD_CENDQUOTE_CWORD , /* 6 */
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CSPCL_CWORD_CWORD_CLP , /* 7 */
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CSPCL_CWORD_CWORD_CRP , /* 8 */
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CBACK_CBACK_CCTL_CBACK , /* 9 */
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CBQUOTE_CBQUOTE_CWORD_CBQUOTE , /* 10 */
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CENDVAR_CENDVAR_CWORD_CENDVAR , /* 11 */
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CENDFILE_CENDFILE_CENDFILE_CENDFILE, /* 12 */
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CWORD_CWORD_CWORD_CWORD , /* 13 */
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CCTL_CCTL_CCTL_CCTL , /* 14 */
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};
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#endif /* SH_MATH_SUPPORT */
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/* c in SIT(c, syntax) must be an *unsigned char* or PEOA or PEOF,
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* caller must ensure proper cast on it if c is *char_ptr!
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@ -2714,45 +2718,12 @@ SIT(int c, int syntax)
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}
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indx = syntax_index_table[s - spec_symbls];
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}
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return S_I_T[indx][syntax];
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return (S_I_T[indx] >> (syntax*4)) & 0xf;
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}
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#else /* !USE_SIT_FUNCTION */
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# if ENABLE_ASH_ALIAS
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# define CSPCL_CIGN_CIGN_CIGN 0
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# define CSPCL_CWORD_CWORD_CWORD 1
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# define CNL_CNL_CNL_CNL 2
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# define CWORD_CCTL_CCTL_CWORD 3
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# define CDQUOTE_CENDQUOTE_CWORD_CWORD 4
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# define CVAR_CVAR_CWORD_CVAR 5
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# define CSQUOTE_CWORD_CENDQUOTE_CWORD 6
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# define CSPCL_CWORD_CWORD_CLP 7
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# define CSPCL_CWORD_CWORD_CRP 8
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# define CBACK_CBACK_CCTL_CBACK 9
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# define CBQUOTE_CBQUOTE_CWORD_CBQUOTE 10
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# define CENDVAR_CENDVAR_CWORD_CENDVAR 11
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# define CENDFILE_CENDFILE_CENDFILE_CENDFILE 12
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# define CWORD_CWORD_CWORD_CWORD 13
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# define CCTL_CCTL_CCTL_CCTL 14
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# else
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# define CSPCL_CWORD_CWORD_CWORD 0
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# define CNL_CNL_CNL_CNL 1
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# define CWORD_CCTL_CCTL_CWORD 2
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# define CDQUOTE_CENDQUOTE_CWORD_CWORD 3
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# define CVAR_CVAR_CWORD_CVAR 4
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# define CSQUOTE_CWORD_CENDQUOTE_CWORD 5
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# define CSPCL_CWORD_CWORD_CLP 6
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# define CSPCL_CWORD_CWORD_CRP 7
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# define CBACK_CBACK_CCTL_CBACK 8
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# define CBQUOTE_CBQUOTE_CWORD_CBQUOTE 9
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# define CENDVAR_CENDVAR_CWORD_CENDVAR 10
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# define CENDFILE_CENDFILE_CENDFILE_CENDFILE 11
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# define CWORD_CWORD_CWORD_CWORD 12
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# define CCTL_CCTL_CCTL_CCTL 13
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# endif
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static const uint8_t syntax_index_table[258] = {
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static const uint8_t syntax_index_table[] = {
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/* BASESYNTAX_DQSYNTAX_SQSYNTAX_ARISYNTAX */
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/* 0 */ CWORD_CWORD_CWORD_CWORD,
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/* 1 */ CWORD_CWORD_CWORD_CWORD,
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@ -3016,9 +2987,9 @@ static const uint8_t syntax_index_table[258] = {
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/* PEOF */ CENDFILE_CENDFILE_CENDFILE_CENDFILE,
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};
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# define SIT(c, syntax) (S_I_T[syntax_index_table[c]][syntax])
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# define SIT(c, syntax) ((S_I_T[syntax_index_table[c]] >> (syntax*4)) & 0xf)
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#endif /* USE_SIT_FUNCTION */
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#endif /* !USE_SIT_FUNCTION */
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/* ============ Alias handling */
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@ -10437,7 +10408,7 @@ noexpand(const char *text)
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continue;
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if (c == CTLESC)
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text++;
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else if (SIT((signed char)c, BASESYNTAX) == CCTL)
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else if (SIT(c, BASESYNTAX) == CCTL)
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return 0;
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}
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return 1;
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@ -11398,8 +11369,10 @@ parsebackq: {
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continue;
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}
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if (pc != '\\' && pc != '`' && pc != '$'
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&& (!dblquote || pc != '"'))
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&& (!dblquote || pc != '"')
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) {
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STPUTC('\\', pout);
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}
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if (pc <= 255 /* not PEOA or PEOF */) {
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break;
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}
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