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test: Simplify the code by unifying op_num and op_type.

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The global variable t_wp_op is no longer needed.
This commit is contained in:
Jilles Tjoelker 2013-12-01 17:00:57 +00:00
parent 49aba28afe
commit 577ad9b2d3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=258799
1 changed files with 75 additions and 78 deletions
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153
bin/test/test.c
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@ -67,9 +67,18 @@ error(const char *msg, ...)
operand ::= <any legal UNIX file name>
*/
enum token_types {
UNOP = 0x100,
BINOP = 0x200,
BUNOP = 0x300,
BBINOP = 0x400,
PAREN = 0x500
};
enum token {
EOI,
FILRD,
OPERAND,
FILRD = UNOP + 1,
FILWR,
FILEX,
FILEXIST,
@ -85,13 +94,13 @@ enum token {
FILSUID,
FILSGID,
FILSTCK,
FILNT,
FILOT,
FILEQ,
FILUID,
FILGID,
STREZ,
STRNZ,
FILUID,
FILGID,
FILNT = BINOP + 1,
FILOT,
FILEQ,
STREQ,
STRNE,
STRLT,
@ -102,70 +111,62 @@ enum token {
INTGT,
INTLE,
INTLT,
UNOT,
BAND,
UNOT = BUNOP + 1,
BAND = BBINOP + 1,
BOR,
LPAREN,
RPAREN,
OPERAND
LPAREN = PAREN + 1,
RPAREN
};
enum token_types {
UNOP,
BINOP,
BUNOP,
BBINOP,
PAREN
};
#define TOKEN_TYPE(token) ((token) & 0xff00)
static struct t_op {
char op_text[4];
short op_num, op_type;
short op_num;
} const ops [] = {
{"-r", FILRD, UNOP},
{"-w", FILWR, UNOP},
{"-x", FILEX, UNOP},
{"-e", FILEXIST,UNOP},
{"-f", FILREG, UNOP},
{"-d", FILDIR, UNOP},
{"-c", FILCDEV,UNOP},
{"-b", FILBDEV,UNOP},
{"-p", FILFIFO,UNOP},
{"-u", FILSUID,UNOP},
{"-g", FILSGID,UNOP},
{"-k", FILSTCK,UNOP},
{"-s", FILGZ, UNOP},
{"-t", FILTT, UNOP},
{"-z", STREZ, UNOP},
{"-n", STRNZ, UNOP},
{"-h", FILSYM, UNOP}, /* for backwards compat */
{"-O", FILUID, UNOP},
{"-G", FILGID, UNOP},
{"-L", FILSYM, UNOP},
{"-S", FILSOCK,UNOP},
{"=", STREQ, BINOP},
{"==", STREQ, BINOP},
{"!=", STRNE, BINOP},
{"<", STRLT, BINOP},
{">", STRGT, BINOP},
{"-eq", INTEQ, BINOP},
{"-ne", INTNE, BINOP},
{"-ge", INTGE, BINOP},
{"-gt", INTGT, BINOP},
{"-le", INTLE, BINOP},
{"-lt", INTLT, BINOP},
{"-nt", FILNT, BINOP},
{"-ot", FILOT, BINOP},
{"-ef", FILEQ, BINOP},
{"!", UNOT, BUNOP},
{"-a", BAND, BBINOP},
{"-o", BOR, BBINOP},
{"(", LPAREN, PAREN},
{")", RPAREN, PAREN},
{"", 0, 0}
{"-r", FILRD},
{"-w", FILWR},
{"-x", FILEX},
{"-e", FILEXIST},
{"-f", FILREG},
{"-d", FILDIR},
{"-c", FILCDEV},
{"-b", FILBDEV},
{"-p", FILFIFO},
{"-u", FILSUID},
{"-g", FILSGID},
{"-k", FILSTCK},
{"-s", FILGZ},
{"-t", FILTT},
{"-z", STREZ},
{"-n", STRNZ},
{"-h", FILSYM}, /* for backwards compat */
{"-O", FILUID},
{"-G", FILGID},
{"-L", FILSYM},
{"-S", FILSOCK},
{"=", STREQ},
{"==", STREQ},
{"!=", STRNE},
{"<", STRLT},
{">", STRGT},
{"-eq", INTEQ},
{"-ne", INTNE},
{"-ge", INTGE},
{"-gt", INTGT},
{"-le", INTLE},
{"-lt", INTLT},
{"-nt", FILNT},
{"-ot", FILOT},
{"-ef", FILEQ},
{"!", UNOT},
{"-a", BAND},
{"-o", BOR},
{"(", LPAREN},
{")", RPAREN},
{"", 0}
};
static struct t_op const *t_wp_op;
static int nargc;
static char **t_wp;
static int parenlevel;
@ -295,10 +296,10 @@ primary(enum token n)
parenlevel--;
return res;
}
if (t_wp_op && t_wp_op->op_type == UNOP) {
if (TOKEN_TYPE(n) == UNOP) {
/* unary expression */
if (--nargc == 0)
syntax(t_wp_op->op_text, "argument expected");
syntax(NULL, "argument expected"); /* impossible */
switch (n) {
case STREZ:
return strlen(*++t_wp) == 0;
@ -311,10 +312,8 @@ primary(enum token n)
}
}
if (t_lex(nargc > 0 ? t_wp[1] : NULL), t_wp_op && t_wp_op->op_type ==
BINOP) {
if (TOKEN_TYPE(t_lex(nargc > 0 ? t_wp[1] : NULL)) == BINOP)
return binop();
}
return strlen(*t_wp) > 0;
}
@ -322,17 +321,17 @@ primary(enum token n)
static int
binop(void)
{
const char *opnd1, *opnd2;
struct t_op const *op;
const char *opnd1, *op, *opnd2;
enum token n;
opnd1 = *t_wp;
(void) t_lex(nargc > 0 ? (--nargc, *++t_wp) : NULL);
op = t_wp_op;
op = nargc > 0 ? t_wp[1] : NULL;
n = t_lex(nargc > 0 ? (--nargc, *++t_wp) : NULL);
if ((opnd2 = nargc > 0 ? (--nargc, *++t_wp) : NULL) == NULL)
syntax(op->op_text, "argument expected");
syntax(op, "argument expected");
switch (op->op_num) {
switch (n) {
case STREQ:
return strcmp(opnd1, opnd2) == 0;
case STRNE:
@ -424,22 +423,20 @@ t_lex(char *s)
struct t_op const *op = ops;
if (s == 0) {
t_wp_op = NULL;
return EOI;
}
while (*op->op_text) {
if (strcmp(s, op->op_text) == 0) {
if (((op->op_type == UNOP || op->op_type == BUNOP)
if (((TOKEN_TYPE(op->op_num) == UNOP ||
TOKEN_TYPE(op->op_num) == BUNOP)
&& isunopoperand()) ||
(op->op_num == LPAREN && islparenoperand()) ||
(op->op_num == RPAREN && isrparenoperand()))
break;
t_wp_op = op;
return op->op_num;
}
op++;
}
t_wp_op = NULL;
return OPERAND;
}
@ -458,7 +455,7 @@ isunopoperand(void)
t = *(t_wp + 2);
while (*op->op_text) {
if (strcmp(s, op->op_text) == 0)
return op->op_type == BINOP &&
return TOKEN_TYPE(op->op_num) == BINOP &&
(parenlevel == 0 || t[0] != ')' || t[1] != '\0');
op++;
}
@ -480,7 +477,7 @@ islparenoperand(void)
return 0;
while (*op->op_text) {
if (strcmp(s, op->op_text) == 0)
return op->op_type == BINOP;
return TOKEN_TYPE(op->op_num) == BINOP;
op++;
}
return 0;