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-rw-r--r--editors/awk.c491
1 files changed, 251 insertions, 240 deletions
diff --git a/editors/awk.c b/editors/awk.c
index 76ebe0fb9..d0a8846b9 100644
--- a/editors/awk.c
+++ b/editors/awk.c
@@ -71,19 +71,19 @@ typedef struct rstream_s {
typedef struct hash_item_s {
union {
- struct var_s v; /* variable/array hash */
- struct rstream_s rs; /* redirect streams hash */
- struct func_s f; /* functions hash */
+ struct var_s v; /* variable/array hash */
+ struct rstream_s rs; /* redirect streams hash */
+ struct func_s f; /* functions hash */
} data;
- struct hash_item_s *next; /* next in chain */
- char name[1]; /* really it's longer */
+ struct hash_item_s *next; /* next in chain */
+ char name[1]; /* really it's longer */
} hash_item;
typedef struct xhash_s {
- unsigned nel; /* num of elements */
- unsigned csize; /* current hash size */
- unsigned nprime; /* next hash size in PRIMES[] */
- unsigned glen; /* summary length of item names */
+ unsigned nel; /* num of elements */
+ unsigned csize; /* current hash size */
+ unsigned nprime; /* next hash size in PRIMES[] */
+ unsigned glen; /* summary length of item names */
struct hash_item_s **items;
} xhash;
@@ -156,42 +156,42 @@ typedef struct tsplitter_s {
#define TC_STRING (1 << 28)
#define TC_NUMBER (1 << 29)
-#define TC_UOPPRE (TC_UOPPRE1 | TC_UOPPRE2)
+#define TC_UOPPRE (TC_UOPPRE1 | TC_UOPPRE2)
/* combined token classes */
-#define TC_BINOP (TC_BINOPX | TC_COMMA | TC_PIPE | TC_IN)
-#define TC_UNARYOP (TC_UOPPRE | TC_UOPPOST)
-#define TC_OPERAND (TC_VARIABLE | TC_ARRAY | TC_FUNCTION | \
- TC_BUILTIN | TC_GETLINE | TC_SEQSTART | TC_STRING | TC_NUMBER)
+#define TC_BINOP (TC_BINOPX | TC_COMMA | TC_PIPE | TC_IN)
+#define TC_UNARYOP (TC_UOPPRE | TC_UOPPOST)
+#define TC_OPERAND (TC_VARIABLE | TC_ARRAY | TC_FUNCTION \
+ | TC_BUILTIN | TC_GETLINE | TC_SEQSTART | TC_STRING | TC_NUMBER)
-#define TC_STATEMNT (TC_STATX | TC_WHILE)
-#define TC_OPTERM (TC_SEMICOL | TC_NEWLINE)
+#define TC_STATEMNT (TC_STATX | TC_WHILE)
+#define TC_OPTERM (TC_SEMICOL | TC_NEWLINE)
/* word tokens, cannot mean something else if not expected */
-#define TC_WORD (TC_IN | TC_STATEMNT | TC_ELSE | TC_BUILTIN | \
- TC_GETLINE | TC_FUNCDECL | TC_BEGIN | TC_END)
+#define TC_WORD (TC_IN | TC_STATEMNT | TC_ELSE | TC_BUILTIN \
+ | TC_GETLINE | TC_FUNCDECL | TC_BEGIN | TC_END)
/* discard newlines after these */
-#define TC_NOTERM (TC_COMMA | TC_GRPSTART | TC_GRPTERM | \
- TC_BINOP | TC_OPTERM)
+#define TC_NOTERM (TC_COMMA | TC_GRPSTART | TC_GRPTERM \
+ | TC_BINOP | TC_OPTERM)
/* what can expression begin with */
-#define TC_OPSEQ (TC_OPERAND | TC_UOPPRE | TC_REGEXP)
+#define TC_OPSEQ (TC_OPERAND | TC_UOPPRE | TC_REGEXP)
/* what can group begin with */
-#define TC_GRPSEQ (TC_OPSEQ | TC_OPTERM | TC_STATEMNT | TC_GRPSTART)
+#define TC_GRPSEQ (TC_OPSEQ | TC_OPTERM | TC_STATEMNT | TC_GRPSTART)
/* if previous token class is CONCAT1 and next is CONCAT2, concatenation */
/* operator is inserted between them */
-#define TC_CONCAT1 (TC_VARIABLE | TC_ARRTERM | TC_SEQTERM | \
- TC_STRING | TC_NUMBER | TC_UOPPOST)
-#define TC_CONCAT2 (TC_OPERAND | TC_UOPPRE)
+#define TC_CONCAT1 (TC_VARIABLE | TC_ARRTERM | TC_SEQTERM \
+ | TC_STRING | TC_NUMBER | TC_UOPPOST)
+#define TC_CONCAT2 (TC_OPERAND | TC_UOPPRE)
-#define OF_RES1 0x010000
-#define OF_RES2 0x020000
-#define OF_STR1 0x040000
-#define OF_STR2 0x080000
-#define OF_NUM1 0x100000
-#define OF_CHECKED 0x200000
+#define OF_RES1 0x010000
+#define OF_RES2 0x020000
+#define OF_STR1 0x040000
+#define OF_STR2 0x080000
+#define OF_NUM1 0x100000
+#define OF_CHECKED 0x200000
/* combined operator flags */
#define xx 0
@@ -205,16 +205,16 @@ typedef struct tsplitter_s {
#define SV (OF_RES1 | OF_STR1 | OF_RES2)
#define SS (OF_RES1 | OF_STR1 | OF_RES2 | OF_STR2)
-#define OPCLSMASK 0xFF00
-#define OPNMASK 0x007F
+#define OPCLSMASK 0xFF00
+#define OPNMASK 0x007F
/* operator priority is a highest byte (even: r->l, odd: l->r grouping)
* For builtins it has different meaning: n n s3 s2 s1 v3 v2 v1,
* n - min. number of args, vN - resolve Nth arg to var, sN - resolve to string
*/
-#define P(x) (x << 24)
-#define PRIMASK 0x7F000000
-#define PRIMASK2 0x7E000000
+#define P(x) (x << 24)
+#define PRIMASK 0x7F000000
+#define PRIMASK2 0x7E000000
/* Operation classes */
@@ -222,44 +222,44 @@ typedef struct tsplitter_s {
#define RECUR_FROM_THIS 0x1000
enum {
- OC_DELETE=0x0100, OC_EXEC=0x0200, OC_NEWSOURCE=0x0300,
- OC_PRINT=0x0400, OC_PRINTF=0x0500, OC_WALKINIT=0x0600,
-
- OC_BR=0x0700, OC_BREAK=0x0800, OC_CONTINUE=0x0900,
- OC_EXIT=0x0a00, OC_NEXT=0x0b00, OC_NEXTFILE=0x0c00,
- OC_TEST=0x0d00, OC_WALKNEXT=0x0e00,
-
- OC_BINARY=0x1000, OC_BUILTIN=0x1100, OC_COLON=0x1200,
- OC_COMMA=0x1300, OC_COMPARE=0x1400, OC_CONCAT=0x1500,
- OC_FBLTIN=0x1600, OC_FIELD=0x1700, OC_FNARG=0x1800,
- OC_FUNC=0x1900, OC_GETLINE=0x1a00, OC_IN=0x1b00,
- OC_LAND=0x1c00, OC_LOR=0x1d00, OC_MATCH=0x1e00,
- OC_MOVE=0x1f00, OC_PGETLINE=0x2000, OC_REGEXP=0x2100,
- OC_REPLACE=0x2200, OC_RETURN=0x2300, OC_SPRINTF=0x2400,
- OC_TERNARY=0x2500, OC_UNARY=0x2600, OC_VAR=0x2700,
- OC_DONE=0x2800,
-
- ST_IF=0x3000, ST_DO=0x3100, ST_FOR=0x3200,
- ST_WHILE=0x3300
+ OC_DELETE = 0x0100, OC_EXEC = 0x0200, OC_NEWSOURCE = 0x0300,
+ OC_PRINT = 0x0400, OC_PRINTF = 0x0500, OC_WALKINIT = 0x0600,
+
+ OC_BR = 0x0700, OC_BREAK = 0x0800, OC_CONTINUE = 0x0900,
+ OC_EXIT = 0x0a00, OC_NEXT = 0x0b00, OC_NEXTFILE = 0x0c00,
+ OC_TEST = 0x0d00, OC_WALKNEXT = 0x0e00,
+
+ OC_BINARY = 0x1000, OC_BUILTIN = 0x1100, OC_COLON = 0x1200,
+ OC_COMMA = 0x1300, OC_COMPARE = 0x1400, OC_CONCAT = 0x1500,
+ OC_FBLTIN = 0x1600, OC_FIELD = 0x1700, OC_FNARG = 0x1800,
+ OC_FUNC = 0x1900, OC_GETLINE = 0x1a00, OC_IN = 0x1b00,
+ OC_LAND = 0x1c00, OC_LOR = 0x1d00, OC_MATCH = 0x1e00,
+ OC_MOVE = 0x1f00, OC_PGETLINE = 0x2000, OC_REGEXP = 0x2100,
+ OC_REPLACE = 0x2200, OC_RETURN = 0x2300, OC_SPRINTF = 0x2400,
+ OC_TERNARY = 0x2500, OC_UNARY = 0x2600, OC_VAR = 0x2700,
+ OC_DONE = 0x2800,
+
+ ST_IF = 0x3000, ST_DO = 0x3100, ST_FOR = 0x3200,
+ ST_WHILE = 0x3300
};
/* simple builtins */
enum {
- F_in=0, F_rn, F_co, F_ex, F_lg, F_si, F_sq, F_sr,
+ F_in, F_rn, F_co, F_ex, F_lg, F_si, F_sq, F_sr,
F_ti, F_le, F_sy, F_ff, F_cl
};
/* builtins */
enum {
- B_a2=0, B_ix, B_ma, B_sp, B_ss, B_ti, B_lo, B_up,
+ B_a2, B_ix, B_ma, B_sp, B_ss, B_ti, B_lo, B_up,
B_ge, B_gs, B_su,
B_an, B_co, B_ls, B_or, B_rs, B_xo,
};
/* tokens and their corresponding info values */
-#define NTC "\377" /* switch to next token class (tc<<1) */
-#define NTCC '\377'
+#define NTC "\377" /* switch to next token class (tc<<1) */
+#define NTCC '\377'
#define OC_B OC_BUILTIN
@@ -365,12 +365,12 @@ static const uint32_t tokeninfo[] = {
/* internal variable names and their initial values */
/* asterisk marks SPECIAL vars; $ is just no-named Field0 */
enum {
- CONVFMT=0, OFMT, FS, OFS,
+ CONVFMT, OFMT, FS, OFS,
ORS, RS, RT, FILENAME,
SUBSEP, ARGIND, ARGC, ARGV,
ERRNO, FNR,
NR, NF, IGNORECASE,
- ENVIRON, F0, _intvarcount_
+ ENVIRON, F0, NUM_INTERNAL_VARS
};
static const char vNames[] =
@@ -390,11 +390,11 @@ static const char vValues[] =
/* hash size may grow to these values */
#define FIRST_PRIME 61;
static const unsigned PRIMES[] = { 251, 1021, 4093, 16381, 65521 };
-enum { NPRIMES = sizeof(PRIMES) / sizeof(unsigned) };
+enum { NPRIMES = sizeof(PRIMES) / sizeof(PRIMES[0]) };
/* globals */
-static var * V[_intvarcount_];
+static var *intvar[NUM_INTERNAL_VARS];
static chain beginseq, mainseq, endseq, *seq;
static int nextrec, nextfile;
static node *break_ptr, *continue_ptr;
@@ -421,6 +421,7 @@ static struct {
int rollback;
} ttt;
/* It had even better name: 't'. Whoever knows what is it, please rename! */
+/* (actually it looks like unrelated stuff lumped together...) */
/* function prototypes */
static void handle_special(var *);
@@ -508,7 +509,7 @@ static void hash_rebuild(xhash *hash)
newsize = PRIMES[hash->nprime++];
newitems = xzalloc(newsize * sizeof(hash_item *));
- for (i=0; i<hash->csize; i++) {
+ for (i = 0; i < hash->csize; i++) {
hi = hash->items[i];
while (hi) {
thi = hi;
@@ -548,16 +549,16 @@ static void *hash_find(xhash *hash, const char *name)
return &(hi->data);
}
-#define findvar(hash, name) ((var*) hash_find((hash) , (name)))
-#define newvar(name) ((var*) hash_find(vhash , (name)))
-#define newfile(name) ((rstream*)hash_find(fdhash ,(name)))
-#define newfunc(name) ((func*) hash_find(fnhash , (name)))
+#define findvar(hash, name) ((var*) hash_find((hash), (name)))
+#define newvar(name) ((var*) hash_find(vhash, (name)))
+#define newfile(name) ((rstream*)hash_find(fdhash, (name)))
+#define newfunc(name) ((func*) hash_find(fnhash, (name)))
static void hash_remove(xhash *hash, const char *name)
{
hash_item *hi, **phi;
- phi = &(hash->items[ hashidx(name) % hash->csize ]);
+ phi = &(hash->items[hashidx(name) % hash->csize]);
while (*phi) {
hi = *phi;
if (strcmp(hi->name, name) == 0) {
@@ -671,7 +672,6 @@ static var *setvar_p(var *v, char *value)
clrvar(v);
v->string = value;
handle_special(v);
-
return v;
}
@@ -692,8 +692,8 @@ static var *setvar_u(var *v, const char *value)
/* set array element to user string */
static void setari_u(var *a, int idx, const char *s)
{
+ char sidx[sizeof(int)*3 + 1];
var *v;
- static char sidx[12];
sprintf(sidx, "%d", idx);
v = findvar(iamarray(a), sidx);
@@ -714,7 +714,7 @@ static const char *getvar_s(var *v)
{
/* if v is numeric and has no cached string, convert it to string */
if ((v->type & (VF_NUMBER | VF_CACHED)) == VF_NUMBER) {
- fmt_num(buf, MAXVARFMT, getvar_s(V[CONVFMT]), v->number, TRUE);
+ fmt_num(buf, MAXVARFMT, getvar_s(intvar[CONVFMT]), v->number, TRUE);
v->string = xstrdup(buf);
v->type |= VF_CACHED;
}
@@ -819,8 +819,8 @@ static void nvfree(var *v)
if (v < cb->nv || v >= cb->pos)
runtime_error(EMSG_INTERNAL_ERROR);
- for (p=v; p<cb->pos; p++) {
- if ((p->type & (VF_ARRAY|VF_CHILD)) == VF_ARRAY) {
+ for (p = v; p < cb->pos; p++) {
+ if ((p->type & (VF_ARRAY | VF_CHILD)) == VF_ARRAY) {
clear_array(iamarray(p));
free(p->x.array->items);
free(p->x.array);
@@ -868,7 +868,8 @@ static uint32_t next_token(uint32_t expected)
skip_spaces(&p);
lineno = ttt.lineno;
if (*p == '#')
- while (*p != '\n' && *p != '\0') p++;
+ while (*p != '\n' && *p != '\0')
+ p++;
if (*p == '\n')
ttt.lineno++;
@@ -894,11 +895,14 @@ static uint32_t next_token(uint32_t expected)
while (*p != '/') {
if (*p == '\0' || *p == '\n')
syntax_error(EMSG_UNEXP_EOS);
- if ((*s++ = *p++) == '\\') {
+ *s++ = *p++;
+ if (*s++ == '\\') {
pp = p;
*(s-1) = bb_process_escape_sequence((const char **)&p);
- if (*pp == '\\') *s++ = '\\';
- if (p == pp) *s++ = *p++;
+ if (*pp == '\\')
+ *s++ = '\\';
+ if (p == pp)
+ *s++ = *p++;
}
}
p++;
@@ -927,9 +931,10 @@ static uint32_t next_token(uint32_t expected)
* matches and it's not a longer word,
* then this is what we are looking for
*/
- if ((tc & (expected | TC_WORD | TC_NEWLINE)) &&
- *tl == *p && strncmp(p, tl, l) == 0 &&
- !((tc & TC_WORD) && isalnum_(*(p + l)))) {
+ if ((tc & (expected | TC_WORD | TC_NEWLINE))
+ && *tl == *p && strncmp(p, tl, l) == 0
+ && !((tc & TC_WORD) && isalnum_(p[l]))
+ ) {
ttt.info = *ti;
p += l;
break;
@@ -952,7 +957,8 @@ static uint32_t next_token(uint32_t expected)
*(p-1) = '\0';
tc = TC_VARIABLE;
/* also consume whitespace between functionname and bracket */
- if (!(expected & TC_VARIABLE)) skip_spaces(&p);
+ if (!(expected & TC_VARIABLE))
+ skip_spaces(&p);
if (*p == '(') {
tc = TC_FUNCTION;
} else {
@@ -970,7 +976,7 @@ static uint32_t next_token(uint32_t expected)
goto readnext;
/* insert concatenation operator when needed */
- if ((ltclass&TC_CONCAT1) && (tc&TC_CONCAT2) && (expected&TC_BINOP)) {
+ if ((ltclass & TC_CONCAT1) && (tc & TC_CONCAT2) && (expected & TC_BINOP)) {
concat_inserted = TRUE;
save_tclass = tc;
save_info = ttt.info;
@@ -983,9 +989,9 @@ static uint32_t next_token(uint32_t expected)
ltclass = ttt.tclass;
/* Are we ready for this? */
- if (! (ltclass & expected))
+ if (!(ltclass & expected))
syntax_error((ltclass & (TC_NEWLINE | TC_EOF)) ?
- EMSG_UNEXP_EOS : EMSG_UNEXP_TOKEN);
+ EMSG_UNEXP_EOS : EMSG_UNEXP_TOKEN);
return ltclass;
}
@@ -1011,7 +1017,7 @@ static node *mk_re_node(const char *s, node *n, regex_t *re)
n->l.re = re;
n->r.ire = re + 1;
xregcomp(re, s, REG_EXTENDED);
- xregcomp(re+1, s, REG_EXTENDED | REG_ICASE);
+ xregcomp(re + 1, s, REG_EXTENDED | REG_ICASE);
return n;
}
@@ -1037,9 +1043,9 @@ static node *parse_expr(uint32_t iexp)
xtc = TC_OPERAND | TC_UOPPRE | TC_REGEXP | iexp;
while (!((tc = next_token(xtc)) & iexp)) {
- if (glptr && (ttt.info == (OC_COMPARE|VV|P(39)|2))) {
+ if (glptr && (ttt.info == (OC_COMPARE | VV | P(39) | 2))) {
/* input redirection (<) attached to glptr node */
- cn = glptr->l.n = new_node(OC_CONCAT|SS|P(37));
+ cn = glptr->l.n = new_node(OC_CONCAT | SS | P(37));
cn->a.n = glptr;
xtc = TC_OPERAND | TC_UOPPRE;
glptr = NULL;
@@ -1048,8 +1054,8 @@ static node *parse_expr(uint32_t iexp)
/* for binary and postfix-unary operators, jump back over
* previous operators with higher priority */
vn = cn;
- while ( ((ttt.info & PRIMASK) > (vn->a.n->info & PRIMASK2)) ||
- ((ttt.info == vn->info) && ((ttt.info & OPCLSMASK) == OC_COLON)) )
+ while ( ((ttt.info & PRIMASK) > (vn->a.n->info & PRIMASK2))
+ || ((ttt.info == vn->info) && ((ttt.info & OPCLSMASK) == OC_COLON)) )
vn = vn->a.n;
if ((ttt.info & OPCLSMASK) == OC_TERNARY)
ttt.info += P(6);
@@ -1086,7 +1092,8 @@ static node *parse_expr(uint32_t iexp)
case TC_VARIABLE:
case TC_ARRAY:
cn->info = OC_VAR;
- if ((v = hash_search(ahash, ttt.string)) != NULL) {
+ v = hash_search(ahash, ttt.string);
+ if (v != NULL) {
cn->info = OC_FNARG;
cn->l.i = v->x.aidx;
} else {
@@ -1213,83 +1220,83 @@ static void chain_group(void)
chain_expr(OC_EXEC | Vx);
} else { /* TC_STATEMNT */
switch (ttt.info & OPCLSMASK) {
- case ST_IF:
- n = chain_node(OC_BR | Vx);
- n->l.n = condition();
+ case ST_IF:
+ n = chain_node(OC_BR | Vx);
+ n->l.n = condition();
+ chain_group();
+ n2 = chain_node(OC_EXEC);
+ n->r.n = seq->last;
+ if (next_token(TC_GRPSEQ | TC_GRPTERM | TC_ELSE) == TC_ELSE) {
chain_group();
- n2 = chain_node(OC_EXEC);
- n->r.n = seq->last;
- if (next_token(TC_GRPSEQ | TC_GRPTERM | TC_ELSE)==TC_ELSE) {
- chain_group();
- n2->a.n = seq->last;
- } else {
- rollback_token();
- }
- break;
+ n2->a.n = seq->last;
+ } else {
+ rollback_token();
+ }
+ break;
- case ST_WHILE:
- n2 = condition();
- n = chain_loop(NULL);
- n->l.n = n2;
- break;
+ case ST_WHILE:
+ n2 = condition();
+ n = chain_loop(NULL);
+ n->l.n = n2;
+ break;
- case ST_DO:
- n2 = chain_node(OC_EXEC);
- n = chain_loop(NULL);
- n2->a.n = n->a.n;
- next_token(TC_WHILE);
- n->l.n = condition();
- break;
+ case ST_DO:
+ n2 = chain_node(OC_EXEC);
+ n = chain_loop(NULL);
+ n2->a.n = n->a.n;
+ next_token(TC_WHILE);
+ n->l.n = condition();
+ break;
- case ST_FOR:
- next_token(TC_SEQSTART);
- n2 = parse_expr(TC_SEMICOL | TC_SEQTERM);
- if (ttt.tclass & TC_SEQTERM) { /* for-in */
- if ((n2->info & OPCLSMASK) != OC_IN)
- syntax_error(EMSG_UNEXP_TOKEN);
- n = chain_node(OC_WALKINIT | VV);
- n->l.n = n2->l.n;
- n->r.n = n2->r.n;
- n = chain_loop(NULL);
- n->info = OC_WALKNEXT | Vx;
- n->l.n = n2->l.n;
- } else { /* for (;;) */
- n = chain_node(OC_EXEC | Vx);
- n->l.n = n2;
- n2 = parse_expr(TC_SEMICOL);
- n3 = parse_expr(TC_SEQTERM);
- n = chain_loop(n3);
- n->l.n = n2;
- if (! n2)
- n->info = OC_EXEC;
- }
- break;
+ case ST_FOR:
+ next_token(TC_SEQSTART);
+ n2 = parse_expr(TC_SEMICOL | TC_SEQTERM);
+ if (ttt.tclass & TC_SEQTERM) { /* for-in */
+ if ((n2->info & OPCLSMASK) != OC_IN)
+ syntax_error(EMSG_UNEXP_TOKEN);
+ n = chain_node(OC_WALKINIT | VV);
+ n->l.n = n2->l.n;
+ n->r.n = n2->r.n;
+ n = chain_loop(NULL);
+ n->info = OC_WALKNEXT | Vx;
+ n->l.n = n2->l.n;
+ } else { /* for (;;) */
+ n = chain_node(OC_EXEC | Vx);
+ n->l.n = n2;
+ n2 = parse_expr(TC_SEMICOL);
+ n3 = parse_expr(TC_SEQTERM);
+ n = chain_loop(n3);
+ n->l.n = n2;
+ if (! n2)
+ n->info = OC_EXEC;
+ }
+ break;
- case OC_PRINT:
- case OC_PRINTF:
- n = chain_node(ttt.info);
- n->l.n = parse_expr(TC_OPTERM | TC_OUTRDR | TC_GRPTERM);
- if (ttt.tclass & TC_OUTRDR) {
- n->info |= ttt.info;
- n->r.n = parse_expr(TC_OPTERM | TC_GRPTERM);
- }
- if (ttt.tclass & TC_GRPTERM)
- rollback_token();
- break;
+ case OC_PRINT:
+ case OC_PRINTF:
+ n = chain_node(ttt.info);
+ n->l.n = parse_expr(TC_OPTERM | TC_OUTRDR | TC_GRPTERM);
+ if (ttt.tclass & TC_OUTRDR) {
+ n->info |= ttt.info;
+ n->r.n = parse_expr(TC_OPTERM | TC_GRPTERM);
+ }
+ if (ttt.tclass & TC_GRPTERM)
+ rollback_token();
+ break;
- case OC_BREAK:
- n = chain_node(OC_EXEC);
- n->a.n = break_ptr;
- break;
+ case OC_BREAK:
+ n = chain_node(OC_EXEC);
+ n->a.n = break_ptr;
+ break;
- case OC_CONTINUE:
- n = chain_node(OC_EXEC);
- n->a.n = continue_ptr;
- break;
+ case OC_CONTINUE:
+ n = chain_node(OC_EXEC);
+ n->a.n = continue_ptr;
+ break;
- /* delete, next, nextfile, return, exit */
- default:
- chain_expr(ttt.info);
+ /* delete, next, nextfile, return, exit */
+ default:
+ chain_expr(ttt.info);
}
}
}
@@ -1304,7 +1311,7 @@ static void parse_program(char *p)
pos = p;
ttt.lineno = 1;
while ((tclass = next_token(TC_EOF | TC_OPSEQ | TC_GRPSTART |
- TC_OPTERM | TC_BEGIN | TC_END | TC_FUNCDECL)) != TC_EOF) {
+ TC_OPTERM | TC_BEGIN | TC_END | TC_FUNCDECL)) != TC_EOF) {
if (tclass & TC_OPTERM)
continue;
@@ -1389,13 +1396,12 @@ static regex_t *as_regex(node *op, regex_t *preg)
if ((op->info & OPCLSMASK) == OC_REGEXP) {
return icase ? op->r.ire : op->l.re;
- } else {
- v = nvalloc(1);
- s = getvar_s(evaluate(op, v));
- xregcomp(preg, s, icase ? REG_EXTENDED | REG_ICASE : REG_EXTENDED);
- nvfree(v);
- return preg;
}
+ v = nvalloc(1);
+ s = getvar_s(evaluate(op, v));
+ xregcomp(preg, s, icase ? REG_EXTENDED | REG_ICASE : REG_EXTENDED);
+ nvfree(v);
+ return preg;
}
/* gradually increasing buffer */
@@ -1442,7 +1448,8 @@ static int awk_split(const char *s, node *spl, char **slist)
c[0] = c[1] = (char)spl->info;
c[2] = c[3] = '\0';
- if (*getvar_s(V[RS]) == '\0') c[2] = '\n';
+ if (*getvar_s(intvar[RS]) == '\0')
+ c[2] = '\n';
if ((spl->info & OPCLSMASK) == OC_REGEXP) { /* regex split */
while (*s) {
@@ -1451,7 +1458,10 @@ static int awk_split(const char *s, node *spl, char **slist)
&& pmatch[0].rm_so <= l
) {
l = pmatch[0].rm_so;
- if (pmatch[0].rm_eo == 0) { l++; pmatch[0].rm_eo++; }
+ if (pmatch[0].rm_eo == 0) {
+ l++;
+ pmatch[0].rm_eo++;
+ }
} else {
pmatch[0].rm_eo = l;
if (s[l]) pmatch[0].rm_eo++;
@@ -1495,6 +1505,7 @@ static int awk_split(const char *s, node *spl, char **slist)
static void split_f0(void)
{
static char *fstrings = NULL;
+
int i, n;
char *s;
@@ -1504,7 +1515,7 @@ static void split_f0(void)
is_f0_split = TRUE;
free(fstrings);
fsrealloc(0);
- n = awk_split(getvar_s(V[F0]), &fsplitter.n, &fstrings);
+ n = awk_split(getvar_s(intvar[F0]), &fsplitter.n, &fstrings);
fsrealloc(n);
s = fstrings;
for (i = 0; i < n; i++) {
@@ -1513,9 +1524,9 @@ static void split_f0(void)
}
/* set NF manually to avoid side effects */
- clrvar(V[NF]);
- V[NF]->type = VF_NUMBER | VF_SPECIAL;
- V[NF]->number = nfields;
+ clrvar(intvar[NF]);
+ intvar[NF]->type = VF_NUMBER | VF_SPECIAL;
+ intvar[NF]->number = nfields;
}
/* perform additional actions when some internal variables changed */
@@ -1529,16 +1540,16 @@ static void handle_special(var *v)
if (!(v->type & VF_SPECIAL))
return;
- if (v == V[NF]) {
+ if (v == intvar[NF]) {
n = (int)getvar_i(v);
fsrealloc(n);
/* recalculate $0 */
- sep = getvar_s(V[OFS]);
+ sep = getvar_s(intvar[OFS]);
sl = strlen(sep);
b = NULL;
len = 0;
- for (i=0; i<n; i++) {
+ for (i = 0; i < n; i++) {
s = getvar_s(&Fields[i]);
l = strlen(s);
if (b) {
@@ -1551,24 +1562,24 @@ static void handle_special(var *v)
}
if (b)
b[len] = '\0';
- setvar_p(V[F0], b);
+ setvar_p(intvar[F0], b);
is_f0_split = TRUE;
- } else if (v == V[F0]) {
+ } else if (v == intvar[F0]) {
is_f0_split = FALSE;
- } else if (v == V[FS]) {
+ } else if (v == intvar[FS]) {
mk_splitter(getvar_s(v), &fsplitter);
- } else if (v == V[RS]) {
+ } else if (v == intvar[RS]) {
mk_splitter(getvar_s(v), &rsplitter);
- } else if (v == V[IGNORECASE]) {
+ } else if (v == intvar[IGNORECASE]) {
icase = istrue(v);
} else { /* $n */
- n = getvar_i(V[NF]);
- setvar_i(V[NF], n > v-Fields ? n : v-Fields+1);
+ n = getvar_i(intvar[NF]);
+ setvar_i(intvar[NF], n > v-Fields ? n : v-Fields+1);
/* right here v is invalid. Just to note... */
}
}
@@ -1599,8 +1610,8 @@ static void hashwalk_init(var *v, xhash *array)
v->type |= VF_WALK;
w = v->x.walker = xzalloc(2 + 2*sizeof(char *) + array->glen);
- *w = *(w+1) = (char *)(w + 2);
- for (i=0; i<array->csize; i++) {
+ w[0] = w[1] = (char *)(w + 2);
+ for (i = 0; i < array->csize; i++) {
hi = array->items[i];
while (hi) {
strcpy(*w, hi->name);
@@ -1615,7 +1626,7 @@ static int hashwalk_next(var *v)
char **w;
w = v->x.walker;
- if (*(w+1) == *w)
+ if (w[1] == w[0])
return FALSE;
setvar_s(v, nextword(w+1));
@@ -1658,7 +1669,7 @@ static int awk_getline(rstream *rsm, var *v)
if (p > 0) {
if ((rsplitter.n.info & OPCLSMASK) == OC_REGEXP) {
if (regexec(icase ? rsplitter.n.r.ire : rsplitter.n.l.re,
- b, 1, pmatch, 0) == 0) {
+ b, 1, pmatch, 0) == 0) {
so = pmatch[0].rm_so;
eo = pmatch[0].rm_eo;
if (b[eo] != '\0')
@@ -1698,7 +1709,7 @@ static int awk_getline(rstream *rsm, var *v)
if (p < pp) {
p = 0;
r = 0;
- setvar_i(V[ERRNO], errno);
+ setvar_i(intvar[ERRNO], errno);
}
b[p] = '\0';
@@ -1712,7 +1723,7 @@ static int awk_getline(rstream *rsm, var *v)
v->type |= VF_USER;
b[so] = c;
c = b[eo]; b[eo] = '\0';
- setvar_s(V[RT], b+so);
+ setvar_s(intvar[RT], b+so);
b[eo] = c;
}
@@ -1782,12 +1793,10 @@ static char *awk_printf(node *n)
if (c == 'c' || !c) {
i += sprintf(b+i, s, is_numeric(arg) ?
(char)getvar_i(arg) : *getvar_s(arg));
-
} else if (c == 's') {
s1 = getvar_s(arg);
qrealloc(&b, incr+i+strlen(s1), &bsize);
i += sprintf(b+i, s, s1);
-
} else {
i += fmt_num(b+i, incr, s, getvar_i(arg), FALSE);
}
@@ -1820,13 +1829,13 @@ static int awk_sub(node *rn, const char *repl, int nm, var *src, var *dest, int
regex_t sreg, *re;
re = as_regex(rn, &sreg);
- if (! src) src = V[F0];
- if (! dest) dest = V[F0];
+ if (! src) src = intvar[F0];
+ if (! dest) dest = intvar[F0];
i = di = 0;
sp = getvar_s(src);
rl = strlen(repl);
- while (regexec(re, sp, 10, pmatch, sp==getvar_s(src) ? 0:REG_NOTBOL) == 0) {
+ while (regexec(re, sp, 10, pmatch, sp==getvar_s(src) ? 0 : REG_NOTBOL) == 0) {
so = pmatch[0].rm_so;
eo = pmatch[0].rm_eo;
@@ -1882,7 +1891,7 @@ static var *exec_builtin(node *op, var *res)
int (*to_xxx)(int);
var *tv;
node *an[4];
- var *av[4];
+ var *av[4];
const char *as[4];
regmatch_t pmatch[2];
regex_t sreg, *re;
@@ -1899,7 +1908,7 @@ static var *exec_builtin(node *op, var *res)
op = op->l.n;
av[2] = av[3] = NULL;
- for (i=0 ; i<4 && op ; i++) {
+ for (i = 0; i < 4 && op; i++) {
an[i] = nextarg(&op);
if (isr & 0x09000000) av[i] = evaluate(an[i], &tv[i]);
if (isr & 0x08000000) as[i] = getvar_s(av[i]);
@@ -1940,9 +1949,10 @@ static var *exec_builtin(node *op, var *res)
case B_ss:
l = strlen(as[0]);
i = getvar_i(av[1]) - 1;
- if (i>l) i=l; if (i<0) i=0;
+ if (i > l) i = l;
+ if (i < 0) i = 0;
n = (nargs > 2) ? getvar_i(av[2]) : l-i;
- if (n<0) n=0;
+ if (n < 0) n = 0;
s = xmalloc(n+1);
strncpy(s, as[0]+i, n);
s[n] = '\0';
@@ -2168,22 +2178,22 @@ static var *evaluate(node *op, var *res)
if ((opinfo & OPCLSMASK) == OC_PRINT) {
if (! op1) {
- fputs(getvar_s(V[F0]), X.F);
+ fputs(getvar_s(intvar[F0]), X.F);
} else {
while (op1) {
L.v = evaluate(nextarg(&op1), v1);
if (L.v->type & VF_NUMBER) {
- fmt_num(buf, MAXVARFMT, getvar_s(V[OFMT]),
+ fmt_num(buf, MAXVARFMT, getvar_s(intvar[OFMT]),
getvar_i(L.v), TRUE);
fputs(buf, X.F);
} else {
fputs(getvar_s(L.v), X.F);
}
- if (op1) fputs(getvar_s(V[OFS]), X.F);
+ if (op1) fputs(getvar_s(intvar[OFS]), X.F);
}
}
- fputs(getvar_s(V[ORS]), X.F);
+ fputs(getvar_s(intvar[ORS]), X.F);
} else { /* OC_PRINTF */
L.s = awk_printf(op1);
@@ -2235,7 +2245,7 @@ static var *evaluate(node *op, var *res)
case XC( OC_VAR ):
L.v = op->l.v;
- if (L.v == V[NF])
+ if (L.v == intvar[NF])
split_f0();
goto v_cont;
@@ -2251,7 +2261,7 @@ static var *evaluate(node *op, var *res)
case XC( OC_REGEXP ):
op1 = op;
- L.s = getvar_s(V[F0]);
+ L.s = getvar_s(intvar[F0]);
goto re_cont;
case XC( OC_MATCH ):
@@ -2280,7 +2290,7 @@ static var *evaluate(node *op, var *res)
break;
case XC( OC_FUNC ):
- if (! op->r.f->body.first)
+ if (!op->r.f->body.first)
runtime_error(EMSG_UNDEF_FUNC);
X.v = R.v = nvalloc(op->r.f->nargs+1);
@@ -2308,7 +2318,7 @@ static var *evaluate(node *op, var *res)
case XC( OC_PGETLINE ):
if (op1) {
X.rsm = newfile(L.s);
- if (! X.rsm->F) {
+ if (!X.rsm->F) {
if ((opinfo & OPCLSMASK) == OC_PGETLINE) {
X.rsm->F = popen(L.s, "r");
X.rsm->is_pipe = TRUE;
@@ -2317,24 +2327,24 @@ static var *evaluate(node *op, var *res)
}
}
} else {
- if (! iF) iF = next_input_file();
+ if (!iF) iF = next_input_file();
X.rsm = iF;
}
- if (! X.rsm->F) {
- setvar_i(V[ERRNO], errno);
+ if (!X.rsm->F) {
+ setvar_i(intvar[ERRNO], errno);
setvar_i(res, -1);
break;
}
- if (! op->r.n)
- R.v = V[F0];
+ if (!op->r.n)
+ R.v = intvar[F0];
L.i = awk_getline(X.rsm, R.v);
if (L.i > 0) {
- if (! op1) {
- incvar(V[FNR]);
- incvar(V[NR]);
+ if (!op1) {
+ incvar(intvar[FNR]);
+ incvar(intvar[NR]);
}
}
setvar_i(res, L.i);
@@ -2391,8 +2401,8 @@ static var *evaluate(node *op, var *res)
break;
case F_le:
- if (! op1)
- L.s = getvar_s(V[F0]);
+ if (!op1)
+ L.s = getvar_s(intvar[F0]);
R.d = strlen(L.s);
break;
@@ -2403,7 +2413,7 @@ static var *evaluate(node *op, var *res)
break;
case F_ff:
- if (! op1)
+ if (!op1)
fflush(stdout);
else {
if (L.s && *L.s) {
@@ -2423,7 +2433,7 @@ static var *evaluate(node *op, var *res)
hash_remove(fdhash, L.s);
}
if (R.i != 0)
- setvar_i(V[ERRNO], errno);
+ setvar_i(intvar[ERRNO], errno);
R.d = (double)R.i;
break;
}
@@ -2469,13 +2479,12 @@ static var *evaluate(node *op, var *res)
case XC( OC_FIELD ):
R.i = (int)getvar_i(R.v);
if (R.i == 0) {
- res = V[F0];
+ res = intvar[F0];
} else {
split_f0();
if (R.i > nfields)
fsrealloc(R.i);
-
- res = &Fields[R.i-1];
+ res = &Fields[R.i - 1];
}
break;
@@ -2486,7 +2495,7 @@ static var *evaluate(node *op, var *res)
X.s = xmalloc(opn);
strcpy(X.s, L.s);
if ((opinfo & OPCLSMASK) == OC_COMMA) {
- L.s = getvar_s(V[SUBSEP]);
+ L.s = getvar_s(intvar[SUBSEP]);
X.s = xrealloc(X.s, opn + strlen(L.s));
strcat(X.s, L.s);
}
@@ -2531,7 +2540,7 @@ static var *evaluate(node *op, var *res)
L.d -= (int)(L.d / R.d) * R.d;
break;
}
- res = setvar_i(((opinfo&OPCLSMASK) == OC_BINARY) ? res : X.v, L.d);
+ res = setvar_i(((opinfo & OPCLSMASK) == OC_BINARY) ? res : X.v, L.d);
break;
case XC( OC_COMPARE ):
@@ -2627,30 +2636,31 @@ static int is_assignment(const char *expr)
static rstream *next_input_file(void)
{
static rstream rsm;
+ static int files_happen = FALSE;
+
FILE *F = NULL;
const char *fname, *ind;
- static int files_happen = FALSE;
if (rsm.F) fclose(rsm.F);
rsm.F = NULL;
rsm.pos = rsm.adv = 0;
do {
- if (getvar_i(V[ARGIND])+1 >= getvar_i(V[ARGC])) {
+ if (getvar_i(intvar[ARGIND])+1 >= getvar_i(intvar[ARGC])) {
if (files_happen)
return NULL;
fname = "-";
F = stdin;
} else {
- ind = getvar_s(incvar(V[ARGIND]));
- fname = getvar_s(findvar(iamarray(V[ARGV]), ind));
+ ind = getvar_s(incvar(intvar[ARGIND]));
+ fname = getvar_s(findvar(iamarray(intvar[ARGV]), ind));
if (fname && *fname && !is_assignment(fname))
F = afopen(fname, "r");
}
} while (!F);
files_happen = TRUE;
- setvar_s(V[FILENAME], fname);
+ setvar_s(intvar[FILENAME], fname);
rsm.F = F;
return &rsm;
}
@@ -2685,7 +2695,7 @@ int awk_main(int argc, char **argv)
/* initialize variables */
for (i = 0; *vnames; i++) {
- V[i] = v = newvar(nextword(&vnames));
+ intvar[i] = v = newvar(nextword(&vnames));
if (*vvalues != '\377')
setvar_s(v, nextword(&vvalues));
else
@@ -2697,8 +2707,8 @@ int awk_main(int argc, char **argv)
}
}
- handle_special(V[FS]);
- handle_special(V[RS]);
+ handle_special(intvar[FS]);
+ handle_special(intvar[RS]);
newfile("/dev/stdin")->F = stdin;
newfile("/dev/stdout")->F = stdout;
@@ -2710,7 +2720,7 @@ int awk_main(int argc, char **argv)
char *s1 = strchr(s, '=');
if (s1) {
*s1++ = '\0';
- setvar_u(findvar(iamarray(V[ENVIRON]), s), s1);
+ setvar_u(findvar(iamarray(intvar[ENVIRON]), s), s1);
}
free(s);
}
@@ -2718,7 +2728,8 @@ int awk_main(int argc, char **argv)
opt = getopt32(argc, argv, "F:v:f:W:", &opt_F, &opt_v, &programname, &opt_W);
argv += optind;
argc -= optind;
- if (opt & 0x1) setvar_s(V[FS], opt_F); // -F
+ if (opt & 0x1)
+ setvar_s(intvar[FS], opt_F); // -F
while (opt_v) { /* -v */
if (!is_assignment(llist_pop(&opt_v)))
bb_show_usage();
@@ -2753,11 +2764,11 @@ int awk_main(int argc, char **argv)
bb_error_msg("warning: unrecognized option '-W %s' ignored", opt_W);
/* fill in ARGV array */
- setvar_i(V[ARGC], argc + 1);
- setari_u(V[ARGV], 0, "awk");
+ setvar_i(intvar[ARGC], argc + 1);
+ setari_u(intvar[ARGV], 0, "awk");
i = 0;
while (*argv)
- setari_u(V[ARGV], ++i, *argv++);
+ setari_u(intvar[ARGV], ++i, *argv++);
evaluate(beginseq.first, &tv);
if (!mainseq.first && !endseq.first)
@@ -2769,12 +2780,12 @@ int awk_main(int argc, char **argv)
/* passing through input files */
while (iF) {
nextfile = FALSE;
- setvar_i(V[FNR], 0);
+ setvar_i(intvar[FNR], 0);
- while ((i = awk_getline(iF, V[F0])) > 0) {
+ while ((i = awk_getline(iF, intvar[F0])) > 0) {
nextrec = FALSE;
- incvar(V[NR]);
- incvar(V[FNR]);
+ incvar(intvar[NR]);
+ incvar(intvar[FNR]);
evaluate(mainseq.first, &tv);
if (nextfile)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 04:57:39 +0000