-/* $Header: toke.c,v 2.0 88/06/05 00:11:16 root Exp $
+/* $RCSfile: toke.c,v $$Revision: 4.0.1.1 $$Date: 91/04/12 09:18:18 $
+ *
+ * Copyright (c) 1989, Larry Wall
+ *
+ * You may distribute under the terms of the GNU General Public License
+ * as specified in the README file that comes with the perl 3.0 kit.
*
* $Log: toke.c,v $
- * Revision 2.0 88/06/05 00:11:16 root
- * Baseline version 2.0.
+ * Revision 4.0.1.1 91/04/12 09:18:18 lwall
+ * patch1: perl -de "print" wouldn't stop at the first statement
+ *
+ * Revision 4.0 91/03/20 01:42:14 lwall
+ * 4.0 baseline.
*
*/
#include "perl.h"
#include "perly.h"
-#define CLINE (cmdline = (line < cmdline ? line : cmdline))
+#ifdef I_FCNTL
+#include <fcntl.h>
+#endif
+#ifdef I_SYS_FILE
+#include <sys/file.h>
+#endif
+
+/* which backslash sequences to keep in m// or s// */
+
+static char *patleave = "\\.^$@dDwWsSbB+*?|()-nrtf0123456789[{]}";
+
+char *reparse; /* if non-null, scanident found ${foo[$bar]} */
+
+void checkcomma();
+
+#ifdef CLINE
+#undef CLINE
+#endif
+#define CLINE (cmdline = (curcmd->c_line < cmdline ? curcmd->c_line : cmdline))
+
+#define META(c) ((c) | 128)
#define RETURN(retval) return (bufptr = s,(int)retval)
#define OPERATOR(retval) return (expectterm = TRUE,bufptr = s,(int)retval)
#define TERM(retval) return (CLINE, expectterm = FALSE,bufptr = s,(int)retval)
#define LOOPX(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)LOOPEX)
-#define UNI(f) return(yylval.ival = f,expectterm = TRUE,bufptr = s,(int)UNIOP)
#define FTST(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)FILETEST)
#define FUN0(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC0)
#define FUN1(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC1)
#define FUN2(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC2)
+#define FUN2x(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC2x)
#define FUN3(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC3)
-#define SFUN(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)STABFUN)
-#define LFUN(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)LVALFUN)
+#define FUN4(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC4)
+#define FUN5(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC5)
+#define FL(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FLIST)
+#define FL2(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FLIST2)
+#define HFUN(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)HSHFUN)
+#define HFUN3(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)HSHFUN3)
+#define LFUN(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LVALFUN)
+#define AOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)ADDOP)
+#define MOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)MULOP)
+#define EOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)EQOP)
+#define ROP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)RELOP)
+#define FOP(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP)
+#define FOP2(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP2)
+#define FOP3(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP3)
+#define FOP4(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP4)
+#define FOP22(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP22)
+#define FOP25(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP25)
+
+/* This bit of chicanery makes a unary function followed by
+ * a parenthesis into a function with one argument, highest precedence.
+ */
+#define UNI(f) return(yylval.ival = f,expectterm = TRUE,bufptr = s, \
+ (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
+
+/* This does similarly for list operators, merely by pretending that the
+ * paren came before the listop rather than after.
+ */
+#define LOP(f) return(CLINE, *s == '(' || (s = skipspace(s), *s == '(') ? \
+ (*s = META('('), bufptr = oldbufptr, '(') : \
+ (yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LISTOP))
+/* grandfather return to old style */
+#define OLDLOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LISTOP)
+
+char *
+skipspace(s)
+register char *s;
+{
+ while (s < bufend && isascii(*s) && isspace(*s))
+ s++;
+ return s;
+}
+
+#ifdef CRIPPLED_CC
+
+#undef UNI
+#undef LOP
+#define UNI(f) return uni(f,s)
+#define LOP(f) return lop(f,s)
+
+int
+uni(f,s)
+int f;
+char *s;
+{
+ yylval.ival = f;
+ expectterm = TRUE;
+ bufptr = s;
+ if (*s == '(')
+ return FUNC1;
+ s = skipspace(s);
+ if (*s == '(')
+ return FUNC1;
+ else
+ return UNIOP;
+}
+
+int
+lop(f,s)
+int f;
+char *s;
+{
+ CLINE;
+ if (*s != '(')
+ s = skipspace(s);
+ if (*s == '(') {
+ *s = META('(');
+ bufptr = oldbufptr;
+ return '(';
+ }
+ else {
+ yylval.ival=f;
+ expectterm = TRUE;
+ bufptr = s;
+ return LISTOP;
+ }
+}
+
+#endif /* CRIPPLED_CC */
yylex()
{
register int tmp;
static bool in_format = FALSE;
static bool firstline = TRUE;
+ extern int yychar; /* last token */
+
+ oldoldbufptr = oldbufptr;
+ oldbufptr = s;
retry:
#ifdef YYDEBUG
- if (yydebug)
+ if (debug & 1)
if (index(s,'\n'))
fprintf(stderr,"Tokener at %s",s);
else
fprintf(stderr,"Tokener at %s\n",s);
#endif
+#ifdef BADSWITCH
+ if (*s & 128) {
+ if ((*s & 127) == '(')
+ *s++ = '(';
+ else
+ warn("Unrecognized character \\%03o ignored", *s++ & 255);
+ goto retry;
+ }
+#endif
switch (*s) {
default:
- fprintf(stderr,
- "Unrecognized character %c in file %s line %ld--ignoring.\n",
- *s++,filename,(long)line);
+ if ((*s & 127) == '(')
+ *s++ = '(';
+ else
+ warn("Unrecognized character \\%03o ignored", *s++ & 255);
goto retry;
+ case 4:
+ case 26:
+ goto fake_eof; /* emulate EOF on ^D or ^Z */
case 0:
- s = str_get(linestr);
- *s = '\0';
- if (firstline && (minus_n || minus_p)) {
- firstline = FALSE;
- str_set(linestr,"line: while (<>) {");
- if (minus_a)
- str_cat(linestr,"@F=split(' ');");
- s = str_get(linestr);
- goto retry;
- }
if (!rsfp)
RETURN(0);
+ if (s++ < bufend)
+ goto retry; /* ignore stray nulls */
+ if (firstline) {
+ firstline = FALSE;
+ if (minus_n || minus_p || perldb) {
+ str_set(linestr,"");
+ if (perldb) {
+ char *getenv();
+ char *pdb = getenv("PERLDB");
+
+ str_cat(linestr, pdb ? pdb : "require 'perldb.pl'");
+ str_cat(linestr, ";");
+ }
+ if (minus_n || minus_p) {
+ str_cat(linestr,"line: while (<>) {");
+ if (minus_l)
+ str_cat(linestr,"chop;");
+ if (minus_a)
+ str_cat(linestr,"@F=split(' ');");
+ }
+ oldoldbufptr = oldbufptr = s = str_get(linestr);
+ bufend = linestr->str_ptr + linestr->str_cur;
+ goto retry;
+ }
+ }
if (in_format) {
- yylval.formval = load_format(); /* leaves . in buffer */
+ bufptr = bufend;
+ yylval.formval = load_format();
in_format = FALSE;
- s = str_get(linestr);
- TERM(FORMLIST);
- }
- line++;
- if ((s = str_gets(linestr, rsfp)) == Nullch) {
- if (preprocess)
- pclose(rsfp);
- else if (rsfp != stdin)
- fclose(rsfp);
- rsfp = Nullfp;
- if (minus_n || minus_p) {
- str_set(linestr,minus_p ? "}continue{print;" : "");
- str_cat(linestr,"}");
- s = str_get(linestr);
- goto retry;
+ oldoldbufptr = oldbufptr = s = str_get(linestr) + 1;
+ bufend = linestr->str_ptr + linestr->str_cur;
+ OPERATOR(FORMLIST);
+ }
+ curcmd->c_line++;
+#ifdef CRYPTSCRIPT
+ cryptswitch();
+#endif /* CRYPTSCRIPT */
+ do {
+ if ((s = str_gets(linestr, rsfp, 0)) == Nullch) {
+ fake_eof:
+ if (rsfp) {
+ if (preprocess)
+ (void)mypclose(rsfp);
+ else if (rsfp == stdin)
+ clearerr(stdin);
+ else
+ (void)fclose(rsfp);
+ rsfp = Nullfp;
+ }
+ if (minus_n || minus_p) {
+ str_set(linestr,minus_p ? ";}continue{print" : "");
+ str_cat(linestr,";}");
+ oldoldbufptr = oldbufptr = s = str_get(linestr);
+ bufend = linestr->str_ptr + linestr->str_cur;
+ minus_n = minus_p = 0;
+ goto retry;
+ }
+ oldoldbufptr = oldbufptr = s = str_get(linestr);
+ str_set(linestr,"");
+ RETURN(';'); /* not infinite loop because rsfp is NULL now */
}
- s = str_get(linestr);
- RETURN(0);
+ if (doextract && *linestr->str_ptr == '#')
+ doextract = FALSE;
+ } while (doextract);
+ oldoldbufptr = oldbufptr = bufptr = s;
+ if (perldb) {
+ STR *str = Str_new(85,0);
+
+ str_sset(str,linestr);
+ astore(stab_xarray(curcmd->c_filestab),(int)curcmd->c_line,str);
}
#ifdef DEBUG
- else if (firstline) {
+ if (firstline) {
char *showinput();
s = showinput();
}
#endif
- firstline = FALSE;
+ bufend = linestr->str_ptr + linestr->str_cur;
+ if (curcmd->c_line == 1) {
+ if (*s == '#' && s[1] == '!') {
+ if (!in_eval && !instr(s,"perl") && instr(origargv[0],"perl")) {
+ char **newargv;
+ char *cmd;
+
+ s += 2;
+ if (*s == ' ')
+ s++;
+ cmd = s;
+ while (s < bufend && !isspace(*s))
+ s++;
+ *s++ = '\0';
+ while (s < bufend && isspace(*s))
+ s++;
+ if (s < bufend) {
+ Newz(899,newargv,origargc+3,char*);
+ newargv[1] = s;
+ while (s < bufend && !isspace(*s))
+ s++;
+ *s = '\0';
+ Copy(origargv+1, newargv+2, origargc+1, char*);
+ }
+ else
+ newargv = origargv;
+ newargv[0] = cmd;
+ execv(cmd,newargv);
+ fatal("Can't exec %s", cmd);
+ }
+ }
+ else {
+ while (s < bufend && isspace(*s))
+ s++;
+ if (*s == ':') /* for csh's that have to exec sh scripts */
+ s++;
+ }
+ }
goto retry;
- case ' ': case '\t': case '\f':
+ case ' ': case '\t': case '\f': case '\r': case 013:
s++;
goto retry;
- case '\n':
case '#':
if (preprocess && s == str_get(linestr) &&
s[1] == ' ' && isdigit(s[2])) {
- line = atoi(s+2)-1;
+ curcmd->c_line = atoi(s+2)-1;
for (s += 2; isdigit(*s); s++) ;
- while (*s && isspace(*s)) s++;
- if (filename)
- safefree(filename);
+ d = bufend;
+ while (s < d && isspace(*s)) s++;
s[strlen(s)-1] = '\0'; /* wipe out newline */
if (*s == '"') {
s++;
s[strlen(s)-1] = '\0'; /* wipe out trailing quote */
}
if (*s)
- filename = savestr(s);
+ curcmd->c_filestab = fstab(s);
else
- filename = savestr(origfilename);
- s = str_get(linestr);
+ curcmd->c_filestab = fstab(origfilename);
+ oldoldbufptr = oldbufptr = s = str_get(linestr);
}
- if (in_eval) {
- while (*s && *s != '\n')
+ /* FALL THROUGH */
+ case '\n':
+ if (in_eval && !rsfp) {
+ d = bufend;
+ while (s < d && *s != '\n')
s++;
- if (*s)
+ if (s < d)
s++;
- line++;
+ if (perldb) {
+ STR *str = Str_new(85,0);
+
+ str_nset(str,linestr->str_ptr, s - linestr->str_ptr);
+ astore(stab_xarray(curcmd->c_filestab),(int)curcmd->c_line,str);
+ str_chop(linestr, s);
+ }
+ if (in_format) {
+ bufptr = s;
+ yylval.formval = load_format();
+ in_format = FALSE;
+ oldoldbufptr = oldbufptr = s = bufptr + 1;
+ TERM(FORMLIST);
+ }
+ curcmd->c_line++;
}
- else
+ else {
*s = '\0';
- if (lex_newlines)
- RETURN('\n');
+ bufend = s;
+ }
goto retry;
case '-':
if (s[1] && isalpha(s[1]) && !isalpha(s[2])) {
case 't': FTST(O_FTTTY);
case 'T': FTST(O_FTTEXT);
case 'B': FTST(O_FTBINARY);
+ case 'M': stabent("\024",TRUE); FTST(O_FTMTIME);
+ case 'A': stabent("\024",TRUE); FTST(O_FTATIME);
+ case 'C': stabent("\024",TRUE); FTST(O_FTCTIME);
default:
s -= 2;
break;
}
}
- /*FALL THROUGH*/
+ tmp = *s++;
+ if (*s == tmp) {
+ s++;
+ RETURN(DEC);
+ }
+ if (expectterm)
+ OPERATOR('-');
+ else
+ AOP(O_SUBTRACT);
case '+':
- if (s[1] == *s) {
+ tmp = *s++;
+ if (*s == tmp) {
s++;
- if (*s++ == '+')
- RETURN(INC);
- else
- RETURN(DEC);
+ RETURN(INC);
}
- /* FALL THROUGH */
+ if (expectterm)
+ OPERATOR('+');
+ else
+ AOP(O_ADD);
+
case '*':
+ if (expectterm) {
+ s = scanident(s,bufend,tokenbuf);
+ yylval.stabval = stabent(tokenbuf,TRUE);
+ TERM(STAR);
+ }
+ tmp = *s++;
+ if (*s == tmp) {
+ s++;
+ OPERATOR(POW);
+ }
+ MOP(O_MULTIPLY);
case '%':
+ if (expectterm) {
+ s = scanident(s,bufend,tokenbuf);
+ yylval.stabval = hadd(stabent(tokenbuf,TRUE));
+ TERM(HSH);
+ }
+ s++;
+ MOP(O_MODULO);
+
case '^':
case '~':
case '(':
cmdline = NOLINE; /* invalidate current command line number */
OPERATOR(tmp);
case ';':
- if (line < cmdline)
- cmdline = line;
+ if (curcmd->c_line < cmdline)
+ cmdline = curcmd->c_line;
tmp = *s++;
OPERATOR(tmp);
case ')':
TERM(tmp);
case '}':
tmp = *s++;
- for (d = s; *d == ' ' || *d == '\t'; d++) ;
- if (*d == '\n' || *d == '#')
- OPERATOR(tmp); /* block end */
- else
- TERM(tmp); /* associative array end */
+ RETURN(tmp);
case '&':
s++;
tmp = *s++;
if (tmp == '&')
OPERATOR(ANDAND);
s--;
+ if (expectterm) {
+ d = bufend;
+ while (s < d && isspace(*s))
+ s++;
+ if (isalpha(*s) || *s == '_' || *s == '\'')
+ *(--s) = '\\'; /* force next ident to WORD */
+ OPERATOR(AMPER);
+ }
OPERATOR('&');
case '|':
s++;
s++;
tmp = *s++;
if (tmp == '=')
- OPERATOR(EQ);
+ EOP(O_EQ);
if (tmp == '~')
OPERATOR(MATCH);
s--;
s++;
tmp = *s++;
if (tmp == '=')
- OPERATOR(NE);
+ EOP(O_NE);
if (tmp == '~')
OPERATOR(NMATCH);
s--;
tmp = *s++;
if (tmp == '<')
OPERATOR(LS);
- if (tmp == '=')
- OPERATOR(LE);
+ if (tmp == '=') {
+ tmp = *s++;
+ if (tmp == '>')
+ EOP(O_NCMP);
+ s--;
+ ROP(O_LE);
+ }
s--;
- OPERATOR('<');
+ ROP(O_LT);
case '>':
s++;
tmp = *s++;
if (tmp == '>')
OPERATOR(RS);
if (tmp == '=')
- OPERATOR(GE);
+ ROP(O_GE);
s--;
- OPERATOR('>');
+ ROP(O_GT);
#define SNARFWORD \
d = tokenbuf; \
- while (isalpha(*s) || isdigit(*s) || *s == '_') \
+ while (isascii(*s) && \
+ (isalpha(*s) || isdigit(*s) || *s == '_' || *s == '\'')) \
*d++ = *s++; \
+ while (d[-1] == '\'') \
+ d--,s--; \
*d = '\0'; \
d = tokenbuf;
case '$':
if (s[1] == '#' && (isalpha(s[2]) || s[2] == '_')) {
s++;
- s = scanreg(s,tokenbuf);
+ s = scanident(s,bufend,tokenbuf);
yylval.stabval = aadd(stabent(tokenbuf,TRUE));
TERM(ARYLEN);
}
- s = scanreg(s,tokenbuf);
+ d = s;
+ s = scanident(s,bufend,tokenbuf);
+ if (reparse) { /* turn ${foo[bar]} into ($foo[bar]) */
+ do_reparse:
+ s[-1] = ')';
+ s = d;
+ s[1] = s[0];
+ s[0] = '(';
+ goto retry;
+ }
yylval.stabval = stabent(tokenbuf,TRUE);
TERM(REG);
case '@':
- s = scanreg(s,tokenbuf);
+ d = s;
+ s = scanident(s,bufend,tokenbuf);
+ if (reparse)
+ goto do_reparse;
yylval.stabval = aadd(stabent(tokenbuf,TRUE));
TERM(ARY);
TERM(PATTERN);
}
tmp = *s++;
+ if (tmp == '/')
+ MOP(O_DIVIDE);
OPERATOR(tmp);
case '.':
if (!expectterm || !isdigit(s[1])) {
- s++;
tmp = *s++;
- if (tmp == '.')
+ if (*s == tmp) {
+ s++;
OPERATOR(DOTDOT);
- s--;
- OPERATOR('.');
+ }
+ AOP(O_CONCAT);
}
/* FALL THROUGH */
case '0': case '1': case '2': case '3': case '4':
s = scanstr(s);
TERM(RSTRING);
+ case '\\': /* some magic to force next word to be a WORD */
+ s++; /* used by do and sub to force a separate namespace */
+ /* FALL THROUGH */
case '_':
SNARFWORD;
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (d[1] == '_') {
+ if (strEQ(d,"__LINE__") || strEQ(d,"__FILE__")) {
+ ARG *arg = op_new(1);
+
+ yylval.arg = arg;
+ arg->arg_type = O_ITEM;
+ if (d[2] == 'L')
+ (void)sprintf(tokenbuf,"%ld",(long)curcmd->c_line);
+ else
+ strcpy(tokenbuf, stab_val(curcmd->c_filestab)->str_ptr);
+ arg[1].arg_type = A_SINGLE;
+ arg[1].arg_ptr.arg_str = str_make(tokenbuf,strlen(tokenbuf));
+ TERM(RSTRING);
+ }
+ else if (strEQ(d,"__END__")) {
+#ifndef TAINT
+ STAB *stab;
+ int fd;
+
+ if (stab = stabent("DATA",FALSE)) {
+ stab->str_pok |= SP_MULTI;
+ stab_io(stab) = stio_new();
+ stab_io(stab)->ifp = rsfp;
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ fd = fileno(rsfp);
+ fcntl(fd,F_SETFD,fd >= 3);
+#endif
+ if (preprocess)
+ stab_io(stab)->type = '|';
+ else if (rsfp == stdin)
+ stab_io(stab)->type = '-';
+ else
+ stab_io(stab)->type = '<';
+ rsfp = Nullfp;
+ }
+#endif
+ goto fake_eof;
+ }
+ }
+ break;
case 'a': case 'A':
SNARFWORD;
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"alarm"))
+ UNI(O_ALARM);
+ if (strEQ(d,"accept"))
+ FOP22(O_ACCEPT);
+ if (strEQ(d,"atan2"))
+ FUN2(O_ATAN2);
+ break;
case 'b': case 'B':
SNARFWORD;
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"bind"))
+ FOP2(O_BIND);
+ if (strEQ(d,"binmode"))
+ FOP(O_BINMODE);
+ break;
case 'c': case 'C':
SNARFWORD;
+ if (strEQ(d,"chop"))
+ LFUN(O_CHOP);
if (strEQ(d,"continue"))
OPERATOR(CONTINUE);
- if (strEQ(d,"chdir"))
+ if (strEQ(d,"chdir")) {
+ (void)stabent("ENV",TRUE); /* may use HOME */
UNI(O_CHDIR);
+ }
if (strEQ(d,"close"))
- OPERATOR(CLOSE);
- if (strEQ(d,"crypt"))
+ FOP(O_CLOSE);
+ if (strEQ(d,"closedir"))
+ FOP(O_CLOSEDIR);
+ if (strEQ(d,"cmp"))
+ EOP(O_SCMP);
+ if (strEQ(d,"caller"))
+ UNI(O_CALLER);
+ if (strEQ(d,"crypt")) {
+#ifdef FCRYPT
+ init_des();
+#endif
FUN2(O_CRYPT);
- if (strEQ(d,"chop"))
- LFUN(O_CHOP);
- if (strEQ(d,"chmod")) {
- yylval.ival = O_CHMOD;
- OPERATOR(LISTOP);
- }
- if (strEQ(d,"chown")) {
- yylval.ival = O_CHOWN;
- OPERATOR(LISTOP);
}
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"chmod"))
+ LOP(O_CHMOD);
+ if (strEQ(d,"chown"))
+ LOP(O_CHOWN);
+ if (strEQ(d,"connect"))
+ FOP2(O_CONNECT);
+ if (strEQ(d,"cos"))
+ UNI(O_COS);
+ if (strEQ(d,"chroot"))
+ UNI(O_CHROOT);
+ break;
case 'd': case 'D':
SNARFWORD;
- if (strEQ(d,"do"))
+ if (strEQ(d,"do")) {
+ d = bufend;
+ while (s < d && isspace(*s))
+ s++;
+ if (isalpha(*s) || *s == '_')
+ *(--s) = '\\'; /* force next ident to WORD */
OPERATOR(DO);
+ }
if (strEQ(d,"die"))
- UNI(O_DIE);
+ LOP(O_DIE);
+ if (strEQ(d,"defined"))
+ LFUN(O_DEFINED);
if (strEQ(d,"delete"))
OPERATOR(DELETE);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"dbmopen"))
+ HFUN3(O_DBMOPEN);
+ if (strEQ(d,"dbmclose"))
+ HFUN(O_DBMCLOSE);
+ if (strEQ(d,"dump"))
+ LOOPX(O_DUMP);
+ break;
case 'e': case 'E':
SNARFWORD;
if (strEQ(d,"else"))
OPERATOR(ELSE);
if (strEQ(d,"elsif")) {
- yylval.ival = line;
+ yylval.ival = curcmd->c_line;
OPERATOR(ELSIF);
}
if (strEQ(d,"eq") || strEQ(d,"EQ"))
- OPERATOR(SEQ);
+ EOP(O_SEQ);
if (strEQ(d,"exit"))
UNI(O_EXIT);
if (strEQ(d,"eval")) {
UNI(O_EVAL); /* we don't know what will be used */
}
if (strEQ(d,"eof"))
- TERM(FEOF);
+ FOP(O_EOF);
if (strEQ(d,"exp"))
- FUN1(O_EXP);
+ UNI(O_EXP);
if (strEQ(d,"each"))
- SFUN(O_EACH);
+ HFUN(O_EACH);
if (strEQ(d,"exec")) {
- yylval.ival = O_EXEC;
- OPERATOR(LISTOP);
+ set_csh();
+ LOP(O_EXEC_OP);
}
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"endhostent"))
+ FUN0(O_EHOSTENT);
+ if (strEQ(d,"endnetent"))
+ FUN0(O_ENETENT);
+ if (strEQ(d,"endservent"))
+ FUN0(O_ESERVENT);
+ if (strEQ(d,"endprotoent"))
+ FUN0(O_EPROTOENT);
+ if (strEQ(d,"endpwent"))
+ FUN0(O_EPWENT);
+ if (strEQ(d,"endgrent"))
+ FUN0(O_EGRENT);
+ break;
case 'f': case 'F':
SNARFWORD;
- if (strEQ(d,"for"))
- OPERATOR(FOR);
- if (strEQ(d,"foreach"))
+ if (strEQ(d,"for") || strEQ(d,"foreach")) {
+ yylval.ival = curcmd->c_line;
OPERATOR(FOR);
+ }
if (strEQ(d,"format")) {
+ d = bufend;
+ while (s < d && isspace(*s))
+ s++;
+ if (isalpha(*s) || *s == '_')
+ *(--s) = '\\'; /* force next ident to WORD */
in_format = TRUE;
- OPERATOR(FORMAT);
+ allstabs = TRUE; /* must initialize everything since */
+ OPERATOR(FORMAT); /* we don't know what will be used */
}
if (strEQ(d,"fork"))
FUN0(O_FORK);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"fcntl"))
+ FOP3(O_FCNTL);
+ if (strEQ(d,"fileno"))
+ FOP(O_FILENO);
+ if (strEQ(d,"flock"))
+ FOP2(O_FLOCK);
+ break;
case 'g': case 'G':
SNARFWORD;
if (strEQ(d,"gt") || strEQ(d,"GT"))
- OPERATOR(SGT);
+ ROP(O_SGT);
if (strEQ(d,"ge") || strEQ(d,"GE"))
- OPERATOR(SGE);
+ ROP(O_SGE);
+ if (strEQ(d,"grep"))
+ FL2(O_GREP);
if (strEQ(d,"goto"))
LOOPX(O_GOTO);
if (strEQ(d,"gmtime"))
- FUN1(O_GMTIME);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ UNI(O_GMTIME);
+ if (strEQ(d,"getc"))
+ FOP(O_GETC);
+ if (strnEQ(d,"get",3)) {
+ d += 3;
+ if (*d == 'p') {
+ if (strEQ(d,"ppid"))
+ FUN0(O_GETPPID);
+ if (strEQ(d,"pgrp"))
+ UNI(O_GETPGRP);
+ if (strEQ(d,"priority"))
+ FUN2(O_GETPRIORITY);
+ if (strEQ(d,"protobyname"))
+ UNI(O_GPBYNAME);
+ if (strEQ(d,"protobynumber"))
+ FUN1(O_GPBYNUMBER);
+ if (strEQ(d,"protoent"))
+ FUN0(O_GPROTOENT);
+ if (strEQ(d,"pwent"))
+ FUN0(O_GPWENT);
+ if (strEQ(d,"pwnam"))
+ FUN1(O_GPWNAM);
+ if (strEQ(d,"pwuid"))
+ FUN1(O_GPWUID);
+ if (strEQ(d,"peername"))
+ FOP(O_GETPEERNAME);
+ }
+ else if (*d == 'h') {
+ if (strEQ(d,"hostbyname"))
+ UNI(O_GHBYNAME);
+ if (strEQ(d,"hostbyaddr"))
+ FUN2(O_GHBYADDR);
+ if (strEQ(d,"hostent"))
+ FUN0(O_GHOSTENT);
+ }
+ else if (*d == 'n') {
+ if (strEQ(d,"netbyname"))
+ UNI(O_GNBYNAME);
+ if (strEQ(d,"netbyaddr"))
+ FUN2(O_GNBYADDR);
+ if (strEQ(d,"netent"))
+ FUN0(O_GNETENT);
+ }
+ else if (*d == 's') {
+ if (strEQ(d,"servbyname"))
+ FUN2(O_GSBYNAME);
+ if (strEQ(d,"servbyport"))
+ FUN2(O_GSBYPORT);
+ if (strEQ(d,"servent"))
+ FUN0(O_GSERVENT);
+ if (strEQ(d,"sockname"))
+ FOP(O_GETSOCKNAME);
+ if (strEQ(d,"sockopt"))
+ FOP3(O_GSOCKOPT);
+ }
+ else if (*d == 'g') {
+ if (strEQ(d,"grent"))
+ FUN0(O_GGRENT);
+ if (strEQ(d,"grnam"))
+ FUN1(O_GGRNAM);
+ if (strEQ(d,"grgid"))
+ FUN1(O_GGRGID);
+ }
+ else if (*d == 'l') {
+ if (strEQ(d,"login"))
+ FUN0(O_GETLOGIN);
+ }
+ d -= 3;
+ }
+ break;
case 'h': case 'H':
SNARFWORD;
if (strEQ(d,"hex"))
- FUN1(O_HEX);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ UNI(O_HEX);
+ break;
case 'i': case 'I':
SNARFWORD;
if (strEQ(d,"if")) {
- yylval.ival = line;
+ yylval.ival = curcmd->c_line;
OPERATOR(IF);
}
if (strEQ(d,"index"))
- FUN2(O_INDEX);
+ FUN2x(O_INDEX);
if (strEQ(d,"int"))
- FUN1(O_INT);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ UNI(O_INT);
+ if (strEQ(d,"ioctl"))
+ FOP3(O_IOCTL);
+ break;
case 'j': case 'J':
SNARFWORD;
if (strEQ(d,"join"))
- OPERATOR(JOIN);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ FL2(O_JOIN);
+ break;
case 'k': case 'K':
SNARFWORD;
if (strEQ(d,"keys"))
- SFUN(O_KEYS);
- if (strEQ(d,"kill")) {
- yylval.ival = O_KILL;
- OPERATOR(LISTOP);
- }
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ HFUN(O_KEYS);
+ if (strEQ(d,"kill"))
+ LOP(O_KILL);
+ break;
case 'l': case 'L':
SNARFWORD;
if (strEQ(d,"last"))
if (strEQ(d,"local"))
OPERATOR(LOCAL);
if (strEQ(d,"length"))
- FUN1(O_LENGTH);
+ UNI(O_LENGTH);
if (strEQ(d,"lt") || strEQ(d,"LT"))
- OPERATOR(SLT);
+ ROP(O_SLT);
if (strEQ(d,"le") || strEQ(d,"LE"))
- OPERATOR(SLE);
+ ROP(O_SLE);
if (strEQ(d,"localtime"))
- FUN1(O_LOCALTIME);
+ UNI(O_LOCALTIME);
if (strEQ(d,"log"))
- FUN1(O_LOG);
+ UNI(O_LOG);
if (strEQ(d,"link"))
FUN2(O_LINK);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"listen"))
+ FOP2(O_LISTEN);
+ if (strEQ(d,"lstat"))
+ FOP(O_LSTAT);
+ break;
case 'm': case 'M':
- SNARFWORD;
+ if (s[1] == '\'') {
+ d = "m";
+ s++;
+ }
+ else {
+ SNARFWORD;
+ }
if (strEQ(d,"m")) {
s = scanpat(s-1);
- TERM(PATTERN);
+ if (yylval.arg)
+ TERM(PATTERN);
+ else
+ RETURN(1); /* force error */
+ }
+ switch (d[1]) {
+ case 'k':
+ if (strEQ(d,"mkdir"))
+ FUN2(O_MKDIR);
+ break;
+ case 's':
+ if (strEQ(d,"msgctl"))
+ FUN3(O_MSGCTL);
+ if (strEQ(d,"msgget"))
+ FUN2(O_MSGGET);
+ if (strEQ(d,"msgrcv"))
+ FUN5(O_MSGRCV);
+ if (strEQ(d,"msgsnd"))
+ FUN3(O_MSGSND);
+ break;
}
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ break;
case 'n': case 'N':
SNARFWORD;
if (strEQ(d,"next"))
LOOPX(O_NEXT);
if (strEQ(d,"ne") || strEQ(d,"NE"))
- OPERATOR(SNE);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ EOP(O_SNE);
+ break;
case 'o': case 'O':
SNARFWORD;
if (strEQ(d,"open"))
OPERATOR(OPEN);
if (strEQ(d,"ord"))
- FUN1(O_ORD);
+ UNI(O_ORD);
if (strEQ(d,"oct"))
- FUN1(O_OCT);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ UNI(O_OCT);
+ if (strEQ(d,"opendir"))
+ FOP2(O_OPENDIR);
+ break;
case 'p': case 'P':
SNARFWORD;
if (strEQ(d,"print")) {
- yylval.ival = O_PRINT;
- OPERATOR(LISTOP);
+ checkcomma(s,"filehandle");
+ LOP(O_PRINT);
}
if (strEQ(d,"printf")) {
- yylval.ival = O_PRTF;
- OPERATOR(LISTOP);
+ checkcomma(s,"filehandle");
+ LOP(O_PRTF);
}
if (strEQ(d,"push")) {
yylval.ival = O_PUSH;
}
if (strEQ(d,"pop"))
OPERATOR(POP);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"pack"))
+ FL2(O_PACK);
+ if (strEQ(d,"package"))
+ OPERATOR(PACKAGE);
+ if (strEQ(d,"pipe"))
+ FOP22(O_PIPE);
+ break;
case 'q': case 'Q':
SNARFWORD;
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"q")) {
+ s = scanstr(s-1);
+ TERM(RSTRING);
+ }
+ if (strEQ(d,"qq")) {
+ s = scanstr(s-2);
+ TERM(RSTRING);
+ }
+ if (strEQ(d,"qx")) {
+ s = scanstr(s-2);
+ TERM(RSTRING);
+ }
+ break;
case 'r': case 'R':
SNARFWORD;
+ if (strEQ(d,"return"))
+ OLDLOP(O_RETURN);
+ if (strEQ(d,"require")) {
+ allstabs = TRUE; /* must initialize everything since */
+ UNI(O_REQUIRE); /* we don't know what will be used */
+ }
if (strEQ(d,"reset"))
UNI(O_RESET);
if (strEQ(d,"redo"))
LOOPX(O_REDO);
if (strEQ(d,"rename"))
FUN2(O_RENAME);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"rand"))
+ UNI(O_RAND);
+ if (strEQ(d,"rmdir"))
+ UNI(O_RMDIR);
+ if (strEQ(d,"rindex"))
+ FUN2x(O_RINDEX);
+ if (strEQ(d,"read"))
+ FOP3(O_READ);
+ if (strEQ(d,"readdir"))
+ FOP(O_READDIR);
+ if (strEQ(d,"rewinddir"))
+ FOP(O_REWINDDIR);
+ if (strEQ(d,"recv"))
+ FOP4(O_RECV);
+ if (strEQ(d,"reverse"))
+ LOP(O_REVERSE);
+ if (strEQ(d,"readlink"))
+ UNI(O_READLINK);
+ break;
case 's': case 'S':
- SNARFWORD;
+ if (s[1] == '\'') {
+ d = "s";
+ s++;
+ }
+ else {
+ SNARFWORD;
+ }
if (strEQ(d,"s")) {
s = scansubst(s);
- TERM(SUBST);
- }
- if (strEQ(d,"shift"))
- TERM(SHIFT);
- if (strEQ(d,"split"))
- TERM(SPLIT);
- if (strEQ(d,"substr"))
- FUN3(O_SUBSTR);
- if (strEQ(d,"sprintf"))
- OPERATOR(SPRINTF);
- if (strEQ(d,"sub"))
- OPERATOR(SUB);
- if (strEQ(d,"select"))
- OPERATOR(SELECT);
- if (strEQ(d,"seek"))
- OPERATOR(SEEK);
- if (strEQ(d,"stat"))
- OPERATOR(STAT);
- if (strEQ(d,"study")) {
- sawstudy++;
- LFUN(O_STUDY);
- }
- if (strEQ(d,"sqrt"))
- FUN1(O_SQRT);
- if (strEQ(d,"sleep"))
- UNI(O_SLEEP);
- if (strEQ(d,"system")) {
- yylval.ival = O_SYSTEM;
- OPERATOR(LISTOP);
- }
- if (strEQ(d,"symlink"))
- FUN2(O_SYMLINK);
- if (strEQ(d,"sort")) {
- yylval.ival = O_SORT;
- OPERATOR(LISTOP);
- }
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (yylval.arg)
+ TERM(SUBST);
+ else
+ RETURN(1); /* force error */
+ }
+ switch (d[1]) {
+ case 'a':
+ case 'b':
+ break;
+ case 'c':
+ if (strEQ(d,"scalar"))
+ UNI(O_SCALAR);
+ break;
+ case 'd':
+ break;
+ case 'e':
+ if (strEQ(d,"select"))
+ OPERATOR(SSELECT);
+ if (strEQ(d,"seek"))
+ FOP3(O_SEEK);
+ if (strEQ(d,"semctl"))
+ FUN4(O_SEMCTL);
+ if (strEQ(d,"semget"))
+ FUN3(O_SEMGET);
+ if (strEQ(d,"semop"))
+ FUN2(O_SEMOP);
+ if (strEQ(d,"send"))
+ FOP3(O_SEND);
+ if (strEQ(d,"setpgrp"))
+ FUN2(O_SETPGRP);
+ if (strEQ(d,"setpriority"))
+ FUN3(O_SETPRIORITY);
+ if (strEQ(d,"sethostent"))
+ FUN1(O_SHOSTENT);
+ if (strEQ(d,"setnetent"))
+ FUN1(O_SNETENT);
+ if (strEQ(d,"setservent"))
+ FUN1(O_SSERVENT);
+ if (strEQ(d,"setprotoent"))
+ FUN1(O_SPROTOENT);
+ if (strEQ(d,"setpwent"))
+ FUN0(O_SPWENT);
+ if (strEQ(d,"setgrent"))
+ FUN0(O_SGRENT);
+ if (strEQ(d,"seekdir"))
+ FOP2(O_SEEKDIR);
+ if (strEQ(d,"setsockopt"))
+ FOP4(O_SSOCKOPT);
+ break;
+ case 'f':
+ case 'g':
+ break;
+ case 'h':
+ if (strEQ(d,"shift"))
+ TERM(SHIFT);
+ if (strEQ(d,"shmctl"))
+ FUN3(O_SHMCTL);
+ if (strEQ(d,"shmget"))
+ FUN3(O_SHMGET);
+ if (strEQ(d,"shmread"))
+ FUN4(O_SHMREAD);
+ if (strEQ(d,"shmwrite"))
+ FUN4(O_SHMWRITE);
+ if (strEQ(d,"shutdown"))
+ FOP2(O_SHUTDOWN);
+ break;
+ case 'i':
+ if (strEQ(d,"sin"))
+ UNI(O_SIN);
+ break;
+ case 'j':
+ case 'k':
+ break;
+ case 'l':
+ if (strEQ(d,"sleep"))
+ UNI(O_SLEEP);
+ break;
+ case 'm':
+ case 'n':
+ break;
+ case 'o':
+ if (strEQ(d,"socket"))
+ FOP4(O_SOCKET);
+ if (strEQ(d,"socketpair"))
+ FOP25(O_SOCKPAIR);
+ if (strEQ(d,"sort")) {
+ checkcomma(s,"subroutine name");
+ d = bufend;
+ while (s < d && isascii(*s) && isspace(*s)) s++;
+ if (*s == ';' || *s == ')') /* probably a close */
+ fatal("sort is now a reserved word");
+ if (isascii(*s) && (isalpha(*s) || *s == '_')) {
+ for (d = s; isalpha(*d) || isdigit(*d) || *d == '_'; d++) ;
+ strncpy(tokenbuf,s,d-s);
+ if (strNE(tokenbuf,"keys") &&
+ strNE(tokenbuf,"values") &&
+ strNE(tokenbuf,"split") &&
+ strNE(tokenbuf,"grep") &&
+ strNE(tokenbuf,"readdir") &&
+ strNE(tokenbuf,"unpack") &&
+ strNE(tokenbuf,"do") &&
+ (d >= bufend || isspace(*d)) )
+ *(--s) = '\\'; /* force next ident to WORD */
+ }
+ LOP(O_SORT);
+ }
+ break;
+ case 'p':
+ if (strEQ(d,"split"))
+ TERM(SPLIT);
+ if (strEQ(d,"sprintf"))
+ FL(O_SPRINTF);
+ if (strEQ(d,"splice")) {
+ yylval.ival = O_SPLICE;
+ OPERATOR(PUSH);
+ }
+ break;
+ case 'q':
+ if (strEQ(d,"sqrt"))
+ UNI(O_SQRT);
+ break;
+ case 'r':
+ if (strEQ(d,"srand"))
+ UNI(O_SRAND);
+ break;
+ case 's':
+ break;
+ case 't':
+ if (strEQ(d,"stat"))
+ FOP(O_STAT);
+ if (strEQ(d,"study")) {
+ sawstudy++;
+ LFUN(O_STUDY);
+ }
+ break;
+ case 'u':
+ if (strEQ(d,"substr"))
+ FUN2x(O_SUBSTR);
+ if (strEQ(d,"sub")) {
+ subline = curcmd->c_line;
+ d = bufend;
+ while (s < d && isspace(*s))
+ s++;
+ if (isalpha(*s) || *s == '_' || *s == '\'') {
+ if (perldb) {
+ str_sset(subname,curstname);
+ str_ncat(subname,"'",1);
+ for (d = s+1;
+ isalpha(*d) || isdigit(*d) || *d == '_' || *d == '\'';
+ d++);
+ if (d[-1] == '\'')
+ d--;
+ str_ncat(subname,s,d-s);
+ }
+ *(--s) = '\\'; /* force next ident to WORD */
+ }
+ else if (perldb)
+ str_set(subname,"?");
+ OPERATOR(SUB);
+ }
+ break;
+ case 'v':
+ case 'w':
+ case 'x':
+ break;
+ case 'y':
+ if (strEQ(d,"system")) {
+ set_csh();
+ LOP(O_SYSTEM);
+ }
+ if (strEQ(d,"symlink"))
+ FUN2(O_SYMLINK);
+ if (strEQ(d,"syscall"))
+ LOP(O_SYSCALL);
+ if (strEQ(d,"sysread"))
+ FOP3(O_SYSREAD);
+ if (strEQ(d,"syswrite"))
+ FOP3(O_SYSWRITE);
+ break;
+ case 'z':
+ break;
+ }
+ break;
case 't': case 'T':
SNARFWORD;
if (strEQ(d,"tr")) {
s = scantrans(s);
- TERM(TRANS);
+ if (yylval.arg)
+ TERM(TRANS);
+ else
+ RETURN(1); /* force error */
}
if (strEQ(d,"tell"))
- TERM(TELL);
+ FOP(O_TELL);
+ if (strEQ(d,"telldir"))
+ FOP(O_TELLDIR);
if (strEQ(d,"time"))
FUN0(O_TIME);
if (strEQ(d,"times"))
FUN0(O_TMS);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"truncate"))
+ FOP2(O_TRUNCATE);
+ break;
case 'u': case 'U':
SNARFWORD;
if (strEQ(d,"using"))
OPERATOR(USING);
if (strEQ(d,"until")) {
- yylval.ival = line;
+ yylval.ival = curcmd->c_line;
OPERATOR(UNTIL);
}
if (strEQ(d,"unless")) {
- yylval.ival = line;
+ yylval.ival = curcmd->c_line;
OPERATOR(UNLESS);
}
+ if (strEQ(d,"unlink"))
+ LOP(O_UNLINK);
+ if (strEQ(d,"undef"))
+ LFUN(O_UNDEF);
+ if (strEQ(d,"unpack"))
+ FUN2(O_UNPACK);
+ if (strEQ(d,"utime"))
+ LOP(O_UTIME);
if (strEQ(d,"umask"))
- FUN1(O_UMASK);
+ UNI(O_UMASK);
if (strEQ(d,"unshift")) {
yylval.ival = O_UNSHIFT;
OPERATOR(PUSH);
}
- if (strEQ(d,"unlink")) {
- yylval.ival = O_UNLINK;
- OPERATOR(LISTOP);
- }
- if (strEQ(d,"utime")) {
- yylval.ival = O_UTIME;
- OPERATOR(LISTOP);
- }
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ break;
case 'v': case 'V':
SNARFWORD;
if (strEQ(d,"values"))
- SFUN(O_VALUES);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ HFUN(O_VALUES);
+ if (strEQ(d,"vec")) {
+ sawvec = TRUE;
+ FUN3(O_VEC);
+ }
+ break;
case 'w': case 'W':
SNARFWORD;
- if (strEQ(d,"write"))
- TERM(WRITE);
if (strEQ(d,"while")) {
- yylval.ival = line;
+ yylval.ival = curcmd->c_line;
OPERATOR(WHILE);
}
+ if (strEQ(d,"warn"))
+ LOP(O_WARN);
if (strEQ(d,"wait"))
FUN0(O_WAIT);
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ if (strEQ(d,"waitpid"))
+ FUN2(O_WAITPID);
+ if (strEQ(d,"wantarray")) {
+ yylval.arg = op_new(1);
+ yylval.arg->arg_type = O_ITEM;
+ yylval.arg[1].arg_type = A_WANTARRAY;
+ TERM(RSTRING);
+ }
+ if (strEQ(d,"write"))
+ FOP(O_WRITE);
+ break;
case 'x': case 'X':
SNARFWORD;
if (!expectterm && strEQ(d,"x"))
- OPERATOR('x');
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ MOP(O_REPEAT);
+ break;
case 'y': case 'Y':
- SNARFWORD;
+ if (s[1] == '\'') {
+ d = "y";
+ s++;
+ }
+ else {
+ SNARFWORD;
+ }
if (strEQ(d,"y")) {
s = scantrans(s);
TERM(TRANS);
}
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ break;
case 'z': case 'Z':
SNARFWORD;
- yylval.cval = savestr(d);
- OPERATOR(WORD);
+ break;
+ }
+ yylval.cval = savestr(d);
+ expectterm = FALSE;
+ if (oldoldbufptr && oldoldbufptr < bufptr) {
+ while (isspace(*oldoldbufptr))
+ oldoldbufptr++;
+ if (*oldoldbufptr == 'p' && strnEQ(oldoldbufptr,"print",5))
+ expectterm = TRUE;
+ else if (*oldoldbufptr == 's' && strnEQ(oldoldbufptr,"sort",4))
+ expectterm = TRUE;
+ }
+ return (CLINE, bufptr = s, (int)WORD);
+}
+
+void
+checkcomma(s,what)
+register char *s;
+char *what;
+{
+ char *someword;
+
+ if (*s == '(')
+ s++;
+ while (s < bufend && isascii(*s) && isspace(*s))
+ s++;
+ if (isascii(*s) && (isalpha(*s) || *s == '_')) {
+ someword = s++;
+ while (isalpha(*s) || isdigit(*s) || *s == '_')
+ s++;
+ while (s < bufend && isspace(*s))
+ s++;
+ if (*s == ',') {
+ *s = '\0';
+ someword = instr(
+ "tell eof times getlogin wait length shift umask getppid \
+ cos exp int log rand sin sqrt ord wantarray",
+ someword);
+ *s = ',';
+ if (someword)
+ return;
+ fatal("No comma allowed after %s", what);
+ }
}
}
char *
-scanreg(s,dest)
+scanident(s,send,dest)
register char *s;
+register char *send;
char *dest;
{
register char *d;
+ int brackets = 0;
+ reparse = Nullch;
s++;
d = dest;
if (isdigit(*s)) {
- while (isdigit(*s) || *s == '_')
+ while (isdigit(*s))
*d++ = *s++;
}
else {
- while (isalpha(*s) || isdigit(*s) || *s == '_')
+ while (isalpha(*s) || isdigit(*s) || *s == '_' || *s == '\'')
*d++ = *s++;
}
+ while (d > dest+1 && d[-1] == '\'')
+ d--,s--;
*d = '\0';
d = dest;
if (!*d) {
*d = *s++;
- if (*d == '{') {
+ if (*d == '{' /* } */ ) {
d = dest;
- while (*s && *s != '}')
- *d++ = *s++;
+ brackets++;
+ while (s < send && brackets) {
+ if (!reparse && (d == dest || (*s && isascii(*s) &&
+ (isalpha(*s) || isdigit(*s) || *s == '_') ))) {
+ *d++ = *s++;
+ continue;
+ }
+ else if (!reparse)
+ reparse = s;
+ switch (*s++) {
+ /* { */
+ case '}':
+ brackets--;
+ if (reparse && reparse == s - 1)
+ reparse = Nullch;
+ break;
+ case '{': /* } */
+ brackets++;
+ break;
+ }
+ }
*d = '\0';
d = dest;
- if (*s)
- s++;
}
else
d[1] = '\0';
}
- if (*d == '^' && !isspace(*s))
- *d = *s++ & 31;
+ if (*d == '^' && (isupper(*s) || index("[\\]^_?",*s)))
+ *d = *s++ ^ 64;
return s;
}
STR *
-scanconst(string)
+scanconst(string,len)
char *string;
+int len;
{
register STR *retstr;
register char *t;
register char *d;
+ register char *e;
if (index(string,'|')) {
return Nullstr;
}
- retstr = str_make(string);
+ retstr = Str_new(86,len);
+ str_nset(retstr,string,len);
t = str_get(retstr);
- *(long*)&retstr->str_nval = 100;
- for (d=t; *d; ) {
+ e = t + len;
+ retstr->str_u.str_useful = 100;
+ for (d=t; d < e; ) {
switch (*d) {
- case '.': case '[': case '$': case '(': case ')': case '|':
- *d = '\0';
+ case '{':
+ if (isdigit(d[1]))
+ e = d;
+ else
+ goto defchar;
+ break;
+ case '.': case '[': case '$': case '(': case ')': case '|': case '+':
+ e = d;
break;
case '\\':
- if (index("wWbB0123456789sSdD",d[1])) {
- *d = '\0';
+ if (d[1] && index("wWbB0123456789sSdDlLuUE",d[1])) {
+ e = d;
break;
}
- strcpy(d,d+1);
+ (void)bcopy(d+1,d,e-d);
+ e--;
switch(*d) {
case 'n':
*d = '\n';
case 'r':
*d = '\r';
break;
+ case 'e':
+ *d = '\033';
+ break;
+ case 'a':
+ *d = '\007';
+ break;
}
/* FALL THROUGH */
default:
- if (d[1] == '*' || d[1] == '+' || d[1] == '?') {
- *d = '\0';
+ defchar:
+ if (d[1] == '*' || (d[1] == '{' && d[2] == '0') || d[1] == '?') {
+ e = d;
break;
}
d++;
}
}
- if (!*t) {
+ if (d == t) {
str_free(retstr);
return Nullstr;
}
- retstr->str_cur = strlen(retstr->str_ptr);
+ *d = '\0';
+ retstr->str_cur = d - t;
return retstr;
}
scanpat(s)
register char *s;
{
- register SPAT *spat = (SPAT *) safemalloc(sizeof (SPAT));
+ register SPAT *spat;
register char *d;
+ register char *e;
+ int len;
+ SPAT savespat;
+ STR *str = Str_new(93,0);
- bzero((char *)spat, sizeof(SPAT));
- spat->spat_next = spat_root; /* link into spat list */
- spat_root = spat;
+ Newz(801,spat,1,SPAT);
+ spat->spat_next = curstash->tbl_spatroot; /* link into spat list */
+ curstash->tbl_spatroot = spat;
switch (*s++) {
case 'm':
default:
fatal("panic: scanpat");
}
- s = cpytill(tokenbuf,s,s[-1]);
- if (!*s)
- fatal("Search pattern not terminated");
+ s = str_append_till(str,s,bufend,s[-1],patleave);
+ if (s >= bufend) {
+ str_free(str);
+ yyerror("Search pattern not terminated");
+ yylval.arg = Nullarg;
+ return s;
+ }
s++;
- if (*s == 'i') {
- s++;
- spat->spat_flags |= SPAT_FOLD;
+ while (*s == 'i' || *s == 'o') {
+ if (*s == 'i') {
+ s++;
+ sawi = TRUE;
+ spat->spat_flags |= SPAT_FOLD;
+ }
+ if (*s == 'o') {
+ s++;
+ spat->spat_flags |= SPAT_KEEP;
+ }
}
- for (d=tokenbuf; *d; d++) {
- if (*d == '$' && d[1] && d[-1] != '\\' && d[1] != '|') {
+ len = str->str_cur;
+ e = str->str_ptr + len;
+ for (d = str->str_ptr; d < e; d++) {
+ if (*d == '\\')
+ d++;
+ else if ((*d == '$' && d[1] && d[1] != '|' && d[1] != ')') ||
+ (*d == '@')) {
register ARG *arg;
spat->spat_runtime = arg = op_new(1);
arg->arg_type = O_ITEM;
arg[1].arg_type = A_DOUBLE;
- arg[1].arg_ptr.arg_str = str_make(tokenbuf);
+ arg[1].arg_ptr.arg_str = str_smake(str);
+ d = scanident(d,bufend,buf);
+ (void)stabent(buf,TRUE); /* make sure it's created */
+ for (; d < e; d++) {
+ if (*d == '\\')
+ d++;
+ else if (*d == '$' && d[1] && d[1] != '|' && d[1] != ')') {
+ d = scanident(d,bufend,buf);
+ (void)stabent(buf,TRUE);
+ }
+ else if (*d == '@') {
+ d = scanident(d,bufend,buf);
+ if (strEQ(buf,"ARGV") || strEQ(buf,"ENV") ||
+ strEQ(buf,"SIG") || strEQ(buf,"INC"))
+ (void)stabent(buf,TRUE);
+ }
+ }
goto got_pat; /* skip compiling for now */
}
}
- if (!(spat->spat_flags & SPAT_FOLD)) {
- if (*tokenbuf == '^') {
- spat->spat_short = scanconst(tokenbuf+1);
- if (spat->spat_short) {
- spat->spat_slen = strlen(spat->spat_short->str_ptr);
- if (spat->spat_slen == strlen(tokenbuf+1))
- spat->spat_flags |= SPAT_ALL;
- }
+ if (spat->spat_flags & SPAT_FOLD)
+#ifdef STRUCTCOPY
+ savespat = *spat;
+#else
+ (void)bcopy((char *)spat, (char *)&savespat, sizeof(SPAT));
+#endif
+ if (*str->str_ptr == '^') {
+ spat->spat_short = scanconst(str->str_ptr+1,len-1);
+ if (spat->spat_short) {
+ spat->spat_slen = spat->spat_short->str_cur;
+ if (spat->spat_slen == len - 1)
+ spat->spat_flags |= SPAT_ALL;
}
- else {
- spat->spat_flags |= SPAT_SCANFIRST;
- spat->spat_short = scanconst(tokenbuf);
- if (spat->spat_short) {
- spat->spat_slen = strlen(spat->spat_short->str_ptr);
- if (spat->spat_slen == strlen(tokenbuf))
- spat->spat_flags |= SPAT_ALL;
- }
- }
}
- spat->spat_regexp = regcomp(tokenbuf,spat->spat_flags & SPAT_FOLD,1);
- hoistmust(spat);
+ else {
+ spat->spat_flags |= SPAT_SCANFIRST;
+ spat->spat_short = scanconst(str->str_ptr,len);
+ if (spat->spat_short) {
+ spat->spat_slen = spat->spat_short->str_cur;
+ if (spat->spat_slen == len)
+ spat->spat_flags |= SPAT_ALL;
+ }
+ }
+ if ((spat->spat_flags & SPAT_ALL) && (spat->spat_flags & SPAT_SCANFIRST)) {
+ fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD);
+ spat->spat_regexp = regcomp(str->str_ptr,str->str_ptr+len,
+ spat->spat_flags & SPAT_FOLD);
+ /* Note that this regexp can still be used if someone says
+ * something like /a/ && s//b/; so we can't delete it.
+ */
+ }
+ else {
+ if (spat->spat_flags & SPAT_FOLD)
+#ifdef STRUCTCOPY
+ *spat = savespat;
+#else
+ (void)bcopy((char *)&savespat, (char *)spat, sizeof(SPAT));
+#endif
+ if (spat->spat_short)
+ fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD);
+ spat->spat_regexp = regcomp(str->str_ptr,str->str_ptr+len,
+ spat->spat_flags & SPAT_FOLD);
+ hoistmust(spat);
+ }
got_pat:
+ str_free(str);
yylval.arg = make_match(O_MATCH,stab2arg(A_STAB,defstab),spat);
return s;
}
scansubst(s)
register char *s;
{
- register SPAT *spat = (SPAT *) safemalloc(sizeof (SPAT));
+ register SPAT *spat;
register char *d;
+ register char *e;
+ int len;
+ STR *str = Str_new(93,0);
- bzero((char *)spat, sizeof(SPAT));
- spat->spat_next = spat_root; /* link into spat list */
- spat_root = spat;
+ Newz(802,spat,1,SPAT);
+ spat->spat_next = curstash->tbl_spatroot; /* link into spat list */
+ curstash->tbl_spatroot = spat;
- s = cpytill(tokenbuf,s+1,*s);
- if (!*s)
- fatal("Substitution pattern not terminated");
- for (d=tokenbuf; *d; d++) {
- if (*d == '$' && d[1] && d[-1] != '\\' && d[1] != '|') {
+ s = str_append_till(str,s+1,bufend,*s,patleave);
+ if (s >= bufend) {
+ str_free(str);
+ yyerror("Substitution pattern not terminated");
+ yylval.arg = Nullarg;
+ return s;
+ }
+ len = str->str_cur;
+ e = str->str_ptr + len;
+ for (d = str->str_ptr; d < e; d++) {
+ if (*d == '\\')
+ d++;
+ else if ((*d == '$' && d[1] && d[1] != '|' && /*(*/ d[1] != ')') ||
+ *d == '@' ) {
register ARG *arg;
spat->spat_runtime = arg = op_new(1);
arg->arg_type = O_ITEM;
arg[1].arg_type = A_DOUBLE;
- arg[1].arg_ptr.arg_str = str_make(tokenbuf);
+ arg[1].arg_ptr.arg_str = str_smake(str);
+ d = scanident(d,bufend,buf);
+ (void)stabent(buf,TRUE); /* make sure it's created */
+ for (; *d; d++) {
+ if (*d == '$' && d[1] && d[-1] != '\\' && d[1] != '|') {
+ d = scanident(d,bufend,buf);
+ (void)stabent(buf,TRUE);
+ }
+ else if (*d == '@' && d[-1] != '\\') {
+ d = scanident(d,bufend,buf);
+ if (strEQ(buf,"ARGV") || strEQ(buf,"ENV") ||
+ strEQ(buf,"SIG") || strEQ(buf,"INC"))
+ (void)stabent(buf,TRUE);
+ }
+ }
goto get_repl; /* skip compiling for now */
}
}
- if (*tokenbuf == '^') {
- spat->spat_short = scanconst(tokenbuf+1);
+ if (*str->str_ptr == '^') {
+ spat->spat_short = scanconst(str->str_ptr+1,len-1);
if (spat->spat_short)
- spat->spat_slen = strlen(spat->spat_short->str_ptr);
+ spat->spat_slen = spat->spat_short->str_cur;
}
else {
spat->spat_flags |= SPAT_SCANFIRST;
- spat->spat_short = scanconst(tokenbuf);
+ spat->spat_short = scanconst(str->str_ptr,len);
if (spat->spat_short)
- spat->spat_slen = strlen(spat->spat_short->str_ptr);
- }
- d = savestr(tokenbuf);
+ spat->spat_slen = spat->spat_short->str_cur;
+ }
get_repl:
s = scanstr(s);
- if (!*s)
- fatal("Substitution replacement not terminated");
+ if (s >= bufend) {
+ str_free(str);
+ yyerror("Substitution replacement not terminated");
+ yylval.arg = Nullarg;
+ return s;
+ }
spat->spat_repl = yylval.arg;
spat->spat_flags |= SPAT_ONCE;
- while (*s == 'g' || *s == 'i') {
+ if ((spat->spat_repl[1].arg_type & A_MASK) == A_SINGLE)
+ spat->spat_flags |= SPAT_CONST;
+ else if ((spat->spat_repl[1].arg_type & A_MASK) == A_DOUBLE) {
+ STR *tmpstr;
+ register char *t;
+
+ spat->spat_flags |= SPAT_CONST;
+ tmpstr = spat->spat_repl[1].arg_ptr.arg_str;
+ e = tmpstr->str_ptr + tmpstr->str_cur;
+ for (t = tmpstr->str_ptr; t < e; t++) {
+ if (*t == '$' && t[1] && (index("`'&+0123456789",t[1]) ||
+ (t[1] == '{' /*}*/ && isdigit(t[2])) ))
+ spat->spat_flags &= ~SPAT_CONST;
+ }
+ }
+ while (*s == 'g' || *s == 'i' || *s == 'e' || *s == 'o') {
+ if (*s == 'e') {
+ s++;
+ if ((spat->spat_repl[1].arg_type & A_MASK) == A_DOUBLE)
+ spat->spat_repl[1].arg_type = A_SINGLE;
+ spat->spat_repl = make_op(O_EVAL,2,
+ spat->spat_repl,
+ Nullarg,
+ Nullarg);
+ spat->spat_flags &= ~SPAT_CONST;
+ }
if (*s == 'g') {
s++;
spat->spat_flags &= ~SPAT_ONCE;
}
if (*s == 'i') {
s++;
+ sawi = TRUE;
spat->spat_flags |= SPAT_FOLD;
+ if (!(spat->spat_flags & SPAT_SCANFIRST)) {
+ str_free(spat->spat_short); /* anchored opt doesn't do */
+ spat->spat_short = Nullstr; /* case insensitive match */
+ spat->spat_slen = 0;
+ }
+ }
+ if (*s == 'o') {
+ s++;
+ spat->spat_flags |= SPAT_KEEP;
}
}
+ if (spat->spat_short && (spat->spat_flags & SPAT_SCANFIRST))
+ fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD);
if (!spat->spat_runtime) {
- spat->spat_regexp = regcomp(d, spat->spat_flags & SPAT_FOLD,1);
+ spat->spat_regexp = regcomp(str->str_ptr,str->str_ptr+len,
+ spat->spat_flags & SPAT_FOLD);
hoistmust(spat);
- safefree(d);
- }
- if (spat->spat_flags & SPAT_FOLD) { /* Oops, disable optimization */
- str_free(spat->spat_short);
- spat->spat_short = Nullstr;
- spat->spat_slen = 0;
}
yylval.arg = make_match(O_SUBST,stab2arg(A_STAB,defstab),spat);
+ str_free(str);
return s;
}
{
if (spat->spat_regexp->regmust) { /* is there a better short-circuit? */
if (spat->spat_short &&
- strEQ(spat->spat_short->str_ptr,spat->spat_regexp->regmust->str_ptr)){
+ str_eq(spat->spat_short,spat->spat_regexp->regmust))
+ {
if (spat->spat_flags & SPAT_SCANFIRST) {
str_free(spat->spat_short);
spat->spat_short = Nullstr;
}
char *
-expand_charset(s)
+expand_charset(s,len,retlen)
register char *s;
+int len;
+int *retlen;
{
- char t[512];
+ char t[520];
register char *d = t;
register int i;
+ register char *send = s + len;
- while (*s) {
- if (s[1] == '-' && s[2]) {
- for (i = s[0]; i <= s[2]; i++)
+ while (s < send && d - t <= 256) {
+ if (s[1] == '-' && s+2 < send) {
+ for (i = (s[0] & 0377); i <= (s[2] & 0377); i++)
*d++ = i;
s += 3;
}
*d++ = *s++;
}
*d = '\0';
- return savestr(t);
+ *retlen = d - t;
+ return nsavestr(t,d-t);
}
char *
register char *s;
{
ARG *arg =
- l(make_op(O_TRANS,2,stab2arg(A_STAB,defstab),Nullarg,Nullarg,0));
+ l(make_op(O_TRANS,2,stab2arg(A_STAB,defstab),Nullarg,Nullarg));
register char *t;
register char *r;
- register char *tbl = safemalloc(256);
+ register short *tbl;
register int i;
+ register int j;
+ int tlen, rlen;
+ int squash;
+ int delete;
+ int complement;
+ New(803,tbl,256,short);
arg[2].arg_type = A_NULL;
- arg[2].arg_ptr.arg_cval = tbl;
- for (i=0; i<256; i++)
- tbl[i] = 0;
+ arg[2].arg_ptr.arg_cval = (char*) tbl;
s = scanstr(s);
- if (!*s)
- fatal("Translation pattern not terminated");
- t = expand_charset(str_get(yylval.arg[1].arg_ptr.arg_str));
- free_arg(yylval.arg);
+ if (s >= bufend) {
+ yyerror("Translation pattern not terminated");
+ yylval.arg = Nullarg;
+ return s;
+ }
+ t = expand_charset(yylval.arg[1].arg_ptr.arg_str->str_ptr,
+ yylval.arg[1].arg_ptr.arg_str->str_cur,&tlen);
+ arg_free(yylval.arg);
s = scanstr(s-1);
- if (!*s)
- fatal("Translation replacement not terminated");
- r = expand_charset(str_get(yylval.arg[1].arg_ptr.arg_str));
- free_arg(yylval.arg);
+ if (s >= bufend) {
+ yyerror("Translation replacement not terminated");
+ yylval.arg = Nullarg;
+ return s;
+ }
+ complement = delete = squash = 0;
+ while (*s == 'c' || *s == 'd' || *s == 's') {
+ if (*s == 'c')
+ complement = 1;
+ else if (*s == 'd')
+ delete = 2;
+ else
+ squash = 1;
+ s++;
+ }
+ r = expand_charset(yylval.arg[1].arg_ptr.arg_str->str_ptr,
+ yylval.arg[1].arg_ptr.arg_str->str_cur,&rlen);
+ arg_free(yylval.arg);
+ arg[2].arg_len = delete|squash;
yylval.arg = arg;
- if (!*r) {
- safefree(r);
- r = t;
+ if (!rlen && !delete) {
+ Safefree(r);
+ r = t; rlen = tlen;
+ }
+ if (complement) {
+ Zero(tbl, 256, short);
+ for (i = 0; i < tlen; i++)
+ tbl[t[i] & 0377] = -1;
+ for (i = 0, j = 0; i < 256; i++) {
+ if (!tbl[i]) {
+ if (j >= rlen) {
+ if (delete)
+ tbl[i] = -2;
+ else
+ tbl[i] = r[j-1];
+ }
+ else
+ tbl[i] = r[j++];
+ }
+ }
}
- for (i = 0; t[i]; i++) {
- if (!r[i])
- r[i] = r[i-1];
- tbl[t[i] & 0377] = r[i];
+ else {
+ for (i = 0; i < 256; i++)
+ tbl[i] = -1;
+ for (i = 0, j = 0; i < tlen; i++,j++) {
+ if (j >= rlen) {
+ if (delete) {
+ if (tbl[t[i] & 0377] == -1)
+ tbl[t[i] & 0377] = -2;
+ continue;
+ }
+ --j;
+ }
+ if (tbl[t[i] & 0377] == -1)
+ tbl[t[i] & 0377] = r[j] & 0377;
+ }
}
if (r != t)
- safefree(r);
- safefree(t);
+ Safefree(r);
+ Safefree(t);
return s;
}
register char term;
register char *d;
register ARG *arg;
+ register char *send;
register bool makesingle = FALSE;
register STAB *stab;
- char *leave = "\\$nrtfb0123456789"; /* which backslash sequences to keep */
+ bool alwaysdollar = FALSE;
+ bool hereis = FALSE;
+ STR *herewas;
+ STR *str;
+ char *leave = "\\$@nrtfbeacx0123456789[{]}lLuUE"; /* which backslash sequences to keep */
+ int len;
arg = op_new(1);
yylval.arg = arg;
goto snarf_it;
case '0':
{
- long i;
+ unsigned long i;
int shift;
arg[1].arg_type = A_SINGLE;
goto out;
case '8': case '9':
if (shift != 4)
- fatal("Illegal octal digit");
+ yyerror("Illegal octal digit");
/* FALL THROUGH */
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7':
}
}
out:
- sprintf(tokenbuf,"%ld",i);
- arg[1].arg_ptr.arg_str = str_make(tokenbuf);
+ str = Str_new(92,0);
+ str_numset(str,(double)i);
+ if (str->str_ptr) {
+ Safefree(str->str_ptr);
+ str->str_ptr = Nullch;
+ str->str_len = str->str_cur = 0;
+ }
+ arg[1].arg_ptr.arg_str = str;
}
break;
case '1': case '2': case '3': case '4': case '5':
else
*d++ = *s++;
}
- if (*s == '.' && index("0123456789eE",s[1])) {
+ if (*s == '.' && s[1] && index("0123456789eE ;",s[1])) {
*d++ = *s++;
while (isdigit(*s) || *s == '_') {
if (*s == '_')
*d++ = *s++;
}
}
- if (index("eE",*s) && index("+-0123456789",s[1])) {
+ if (*s && index("eE",*s) && index("+-0123456789",s[1])) {
*d++ = *s++;
if (*s == '+' || *s == '-')
*d++ = *s++;
*d++ = *s++;
}
*d = '\0';
- arg[1].arg_ptr.arg_str = str_make(tokenbuf);
+ str = Str_new(92,0);
+ str_numset(str,atof(tokenbuf));
+ if (str->str_ptr) {
+ Safefree(str->str_ptr);
+ str->str_ptr = Nullch;
+ str->str_len = str->str_cur = 0;
+ }
+ arg[1].arg_ptr.arg_str = str;
break;
- case '\'':
- arg[1].arg_type = A_SINGLE;
- term = *s;
- leave = Nullch;
- goto snarf_it;
-
case '<':
+ if (*++s == '<') {
+ hereis = TRUE;
+ d = tokenbuf;
+ if (!rsfp)
+ *d++ = '\n';
+ if (*++s && index("`'\"",*s)) {
+ term = *s++;
+ s = cpytill(d,s,bufend,term,&len);
+ if (s < bufend)
+ s++;
+ d += len;
+ }
+ else {
+ if (*s == '\\')
+ s++, term = '\'';
+ else
+ term = '"';
+ while (isascii(*s) && (isalpha(*s) || isdigit(*s) || *s == '_'))
+ *d++ = *s++;
+ } /* assuming tokenbuf won't clobber */
+ *d++ = '\n';
+ *d = '\0';
+ len = d - tokenbuf;
+ d = "\n";
+ if (rsfp || !(d=ninstr(s,bufend,d,d+1)))
+ herewas = str_make(s,bufend-s);
+ else
+ s--, herewas = str_make(s,d-s);
+ s += herewas->str_cur;
+ if (term == '\'')
+ goto do_single;
+ if (term == '`')
+ goto do_back;
+ goto do_double;
+ }
d = tokenbuf;
- s = cpytill(d,s+1,'>');
- if (*s)
+ s = cpytill(d,s,bufend,'>',&len);
+ if (s < bufend)
s++;
if (*d == '$') d++;
- while (*d && (isalpha(*d) || isdigit(*d) || *d == '_')) d++;
- if (*d) {
+ while (*d &&
+ (isalpha(*d) || isdigit(*d) || *d == '_' || *d == '\''))
+ d++;
+ if (d - tokenbuf != len) {
d = tokenbuf;
arg[1].arg_type = A_GLOB;
- d = savestr(d);
+ d = nsavestr(d,len);
arg[1].arg_ptr.arg_stab = stab = genstab();
- stab->stab_io = stio_new();
- stab->stab_val = str_make(d);
+ stab_io(stab) = stio_new();
+ stab_val(stab) = str_make(d,len);
+ Safefree(d);
+ set_csh();
}
else {
d = tokenbuf;
- if (!*d)
- strcpy(d,"ARGV");
+ if (!len)
+ (void)strcpy(d,"ARGV");
if (*d == '$') {
arg[1].arg_type = A_INDREAD;
arg[1].arg_ptr.arg_stab = stabent(d+1,TRUE);
}
else {
arg[1].arg_type = A_READ;
- if (rsfp == stdin && strEQ(d,"stdin"))
- fatal("Can't get both program and data from <stdin>");
arg[1].arg_ptr.arg_stab = stabent(d,TRUE);
- arg[1].arg_ptr.arg_stab->stab_io = stio_new();
+ if (!stab_io(arg[1].arg_ptr.arg_stab))
+ stab_io(arg[1].arg_ptr.arg_stab) = stio_new();
if (strEQ(d,"ARGV")) {
- aadd(arg[1].arg_ptr.arg_stab);
- arg[1].arg_ptr.arg_stab->stab_io->flags |=
+ (void)aadd(arg[1].arg_ptr.arg_stab);
+ stab_io(arg[1].arg_ptr.arg_stab)->flags |=
IOF_ARGV|IOF_START;
}
}
}
break;
+
+ case 'q':
+ s++;
+ if (*s == 'q') {
+ s++;
+ goto do_double;
+ }
+ if (*s == 'x') {
+ s++;
+ goto do_back;
+ }
+ /* FALL THROUGH */
+ case '\'':
+ do_single:
+ term = *s;
+ arg[1].arg_type = A_SINGLE;
+ leave = Nullch;
+ goto snarf_it;
+
case '"':
+ do_double:
+ term = *s;
arg[1].arg_type = A_DOUBLE;
makesingle = TRUE; /* maybe disable runtime scanning */
- term = *s;
+ alwaysdollar = TRUE; /* treat $) and $| as variables */
goto snarf_it;
case '`':
- arg[1].arg_type = A_BACKTICK;
+ do_back:
term = *s;
+ arg[1].arg_type = A_BACKTICK;
+ set_csh();
+ alwaysdollar = TRUE; /* treat $) and $| as variables */
snarf_it:
{
STR *tmpstr;
- int sqstart = line;
char *tmps;
- tmpstr = str_new(strlen(s));
- s = str_append_till(tmpstr,s+1,term,leave);
- while (!*s) { /* multiple line string? */
- s = str_gets(linestr, rsfp);
- if (!s) {
- line = sqstart;
+ multi_start = curcmd->c_line;
+ if (hereis)
+ multi_open = multi_close = '<';
+ else {
+ multi_open = term;
+ if (term && (tmps = index("([{< )]}> )]}>",term)))
+ term = tmps[5];
+ multi_close = term;
+ }
+ tmpstr = Str_new(87,80);
+ if (hereis) {
+ term = *tokenbuf;
+ if (!rsfp) {
+ d = s;
+ while (s < bufend &&
+ (*s != term || bcmp(s,tokenbuf,len) != 0) ) {
+ if (*s++ == '\n')
+ curcmd->c_line++;
+ }
+ if (s >= bufend) {
+ curcmd->c_line = multi_start;
+ fatal("EOF in string");
+ }
+ str_nset(tmpstr,d+1,s-d);
+ s += len - 1;
+ str_ncat(herewas,s,bufend-s);
+ str_replace(linestr,herewas);
+ oldoldbufptr = oldbufptr = bufptr = s = str_get(linestr);
+ bufend = linestr->str_ptr + linestr->str_cur;
+ hereis = FALSE;
+ }
+ else
+ str_nset(tmpstr,"",0); /* avoid "uninitialized" warning */
+ }
+ else
+ s = str_append_till(tmpstr,s+1,bufend,term,leave);
+ while (s >= bufend) { /* multiple line string? */
+ if (!rsfp ||
+ !(oldoldbufptr = oldbufptr = s = str_gets(linestr, rsfp, 0))) {
+ curcmd->c_line = multi_start;
fatal("EOF in string");
}
- line++;
- s = str_append_till(tmpstr,s,term,leave);
+ curcmd->c_line++;
+ if (perldb) {
+ STR *str = Str_new(88,0);
+
+ str_sset(str,linestr);
+ astore(stab_xarray(curcmd->c_filestab),
+ (int)curcmd->c_line,str);
+ }
+ bufend = linestr->str_ptr + linestr->str_cur;
+ if (hereis) {
+ if (*s == term && bcmp(s,tokenbuf,len) == 0) {
+ s = bufend - 1;
+ *s = ' ';
+ str_scat(linestr,herewas);
+ bufend = linestr->str_ptr + linestr->str_cur;
+ }
+ else {
+ s = bufend;
+ str_scat(tmpstr,linestr);
+ }
+ }
+ else
+ s = str_append_till(tmpstr,s,bufend,term,leave);
}
+ multi_end = curcmd->c_line;
s++;
- if (term == '\'') {
+ if (tmpstr->str_cur + 5 < tmpstr->str_len) {
+ tmpstr->str_len = tmpstr->str_cur + 1;
+ Renew(tmpstr->str_ptr, tmpstr->str_len, char);
+ }
+ if ((arg[1].arg_type & A_MASK) == A_SINGLE) {
arg[1].arg_ptr.arg_str = tmpstr;
break;
}
tmps = s;
s = tmpstr->str_ptr;
- while (*s) { /* see if we can make SINGLE */
+ send = s + tmpstr->str_cur;
+ while (s < send) { /* see if we can make SINGLE */
if (*s == '\\' && s[1] && isdigit(s[1]) && !isdigit(s[2]) &&
- !index("`\"",term) )
+ !alwaysdollar && s[1] != '0')
*s = '$'; /* grandfather \digit in subst */
- if (*s == '$' && s[1] && s[1] != ')' && s[1] != '|') {
+ if ((*s == '$' || *s == '@') && s+1 < send &&
+ (alwaysdollar || (s[1] != ')' && s[1] != '|'))) {
makesingle = FALSE; /* force interpretation */
}
- else if (*s == '\\' && s[1]) {
+ else if (*s == '\\' && s+1 < send) {
+ if (index("lLuUE",s[1]))
+ makesingle = FALSE;
s++;
}
s++;
}
s = d = tmpstr->str_ptr; /* assuming shrinkage only */
- while (*s) {
- if (*s == '$' && s[1] && s[1] != ')' && s[1] != '|') {
- int len;
-
- len = scanreg(s,tokenbuf) - s;
- stabent(tokenbuf,TRUE); /* make sure it's created */
+ while (s < send) {
+ if ((*s == '$' && s+1 < send &&
+ (alwaysdollar || /*(*/ (s[1] != ')' && s[1] != '|')) ) ||
+ (*s == '@' && s+1 < send) ) {
+ len = scanident(s,send,tokenbuf) - s;
+ if (*s == '$' || strEQ(tokenbuf,"ARGV")
+ || strEQ(tokenbuf,"ENV")
+ || strEQ(tokenbuf,"SIG")
+ || strEQ(tokenbuf,"INC") )
+ (void)stabent(tokenbuf,TRUE); /* make sure it exists */
while (len--)
*d++ = *s++;
continue;
}
- else if (*s == '\\' && s[1]) {
+ else if (*s == '\\' && s+1 < send) {
s++;
switch (*s) {
default:
- if (!makesingle && (!leave || index(leave,*s)))
+ if (!makesingle && (!leave || (*s && index(leave,*s))))
*d++ = '\\';
*d++ = *s++;
continue;
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
- *d = *s++ - '0';
- if (index("01234567",*s)) {
- *d <<= 3;
- *d += *s++ - '0';
- }
- if (index("01234567",*s)) {
- *d <<= 3;
- *d += *s++ - '0';
- }
- d++;
+ *d++ = scanoct(s, 3, &len);
+ s += len;
+ continue;
+ case 'x':
+ *d++ = scanhex(++s, 2, &len);
+ s += len;
+ continue;
+ case 'c':
+ s++;
+ *d = *s++;
+ if (islower(*d))
+ *d = toupper(*d);
+ *d++ ^= 64;
continue;
case 'b':
*d++ = '\b';
case 't':
*d++ = '\t';
break;
+ case 'e':
+ *d++ = '\033';
+ break;
+ case 'a':
+ *d++ = '\007';
+ break;
}
s++;
continue;
}
*d = '\0';
- if (arg[1].arg_type == A_DOUBLE && makesingle)
- arg[1].arg_type = A_SINGLE; /* now we can optimize on it */
+ if ((arg[1].arg_type & A_MASK) == A_DOUBLE && makesingle)
+ arg[1].arg_type = A_SINGLE; /* now we can optimize on it */
- tmpstr->str_cur = d - tmpstr->str_ptr; /* XXX cheat */
+ tmpstr->str_cur = d - tmpstr->str_ptr;
arg[1].arg_ptr.arg_str = tmpstr;
s = tmps;
break;
}
}
+ if (hereis)
+ str_free(herewas);
return s;
}
{
FCMD froot;
FCMD *flinebeg;
+ char *eol;
register FCMD *fprev = &froot;
register FCMD *fcmd;
register char *s;
register char *t;
- register char tmpchar;
+ register STR *str;
bool noblank;
+ bool repeater;
- while ((s = str_gets(linestr,rsfp)) != Nullch) {
- line++;
- if (strEQ(s,".\n")) {
- bufptr = s;
- return froot.f_next;
+ Zero(&froot, 1, FCMD);
+ s = bufptr;
+ while (s < bufend || (rsfp && (s = str_gets(linestr,rsfp, 0)) != Nullch)) {
+ curcmd->c_line++;
+ if (in_eval && !rsfp) {
+ eol = index(s,'\n');
+ if (!eol++)
+ eol = bufend;
}
- if (*s == '#')
+ else
+ eol = bufend = linestr->str_ptr + linestr->str_cur;
+ if (perldb) {
+ STR *tmpstr = Str_new(89,0);
+
+ str_nset(tmpstr, s, eol-s);
+ astore(stab_xarray(curcmd->c_filestab), (int)curcmd->c_line,tmpstr);
+ }
+ if (*s == '.') {
+ for (t = s+1; *t == ' ' || *t == '\t'; t++) ;
+ if (*t == '\n') {
+ bufptr = s;
+ return froot.f_next;
+ }
+ }
+ if (*s == '#') {
+ s = eol;
continue;
+ }
flinebeg = Nullfcmd;
noblank = FALSE;
- while (*s) {
- fcmd = (FCMD *)safemalloc(sizeof (FCMD));
- bzero((char*)fcmd, sizeof (FCMD));
+ repeater = FALSE;
+ while (s < eol) {
+ Newz(804,fcmd,1,FCMD);
fprev->f_next = fcmd;
fprev = fcmd;
- for (t=s; *t && *t != '@' && *t != '^'; t++) {
+ for (t=s; t < eol && *t != '@' && *t != '^'; t++) {
if (*t == '~') {
noblank = TRUE;
*t = ' ';
+ if (t[1] == '~') {
+ repeater = TRUE;
+ t[1] = ' ';
+ }
}
}
- tmpchar = *t;
- *t = '\0';
- fcmd->f_pre = savestr(s);
- fcmd->f_presize = strlen(s);
- *t = tmpchar;
+ fcmd->f_pre = nsavestr(s, t-s);
+ fcmd->f_presize = t-s;
s = t;
- if (!*s) {
+ if (s >= eol) {
if (noblank)
fcmd->f_flags |= FC_NOBLANK;
+ if (repeater)
+ fcmd->f_flags |= FC_REPEAT;
break;
}
if (!flinebeg)
while (*s == '|')
s++;
break;
+ case '#':
+ case '.':
+ /* Catch the special case @... and handle it as a string
+ field. */
+ if (*s == '.' && s[1] == '.') {
+ goto default_format;
+ }
+ fcmd->f_type = F_DECIMAL;
+ {
+ char *p;
+
+ /* Read a format in the form @####.####, where either group
+ of ### may be empty, or the final .### may be missing. */
+ while (*s == '#')
+ s++;
+ if (*s == '.') {
+ s++;
+ p = s;
+ while (*s == '#')
+ s++;
+ fcmd->f_decimals = s-p;
+ fcmd->f_flags |= FC_DP;
+ } else {
+ fcmd->f_decimals = 0;
+ }
+ }
+ break;
default:
+ default_format:
fcmd->f_type = F_LEFT;
break;
}
}
if (flinebeg) {
again:
- if ((bufptr = str_gets(linestr ,rsfp)) == Nullch)
+ if (s >= bufend &&
+ (!rsfp || (s = str_gets(linestr, rsfp, 0)) == Nullch) )
goto badform;
- line++;
- if (strEQ(bufptr,".\n")) {
+ curcmd->c_line++;
+ if (in_eval && !rsfp) {
+ eol = index(s,'\n');
+ if (!eol++)
+ eol = bufend;
+ }
+ else
+ eol = bufend = linestr->str_ptr + linestr->str_cur;
+ if (perldb) {
+ STR *tmpstr = Str_new(90,0);
+
+ str_nset(tmpstr, s, eol-s);
+ astore(stab_xarray(curcmd->c_filestab),
+ (int)curcmd->c_line,tmpstr);
+ }
+ if (strnEQ(s,".\n",2)) {
+ bufptr = s;
yyerror("Missing values line");
return froot.f_next;
}
- if (*bufptr == '#')
+ if (*s == '#') {
+ s = eol;
goto again;
- lex_newlines = TRUE;
- while (flinebeg || *bufptr) {
- switch(yylex()) {
- default:
- yyerror("Bad value in format");
- *bufptr = '\0';
- break;
- case '\n':
- if (flinebeg)
- yyerror("Missing value in format");
- *bufptr = '\0';
- break;
- case REG:
- yylval.arg = stab2arg(A_LVAL,yylval.stabval);
- /* FALL THROUGH */
- case RSTRING:
- if (!flinebeg)
- yyerror("Extra value in format");
- else {
- flinebeg->f_expr = yylval.arg;
- do {
- flinebeg = flinebeg->f_next;
- } while (flinebeg && flinebeg->f_size == 0);
+ }
+ str = flinebeg->f_unparsed = Str_new(91,eol - s);
+ str->str_u.str_hash = curstash;
+ str_nset(str,"(",1);
+ flinebeg->f_line = curcmd->c_line;
+ eol[-1] = '\0';
+ if (!flinebeg->f_next->f_type || index(s, ',')) {
+ eol[-1] = '\n';
+ str_ncat(str, s, eol - s - 1);
+ str_ncat(str,",$$);",5);
+ s = eol;
+ }
+ else {
+ eol[-1] = '\n';
+ while (s < eol && isspace(*s))
+ s++;
+ t = s;
+ while (s < eol) {
+ switch (*s) {
+ case ' ': case '\t': case '\n': case ';':
+ str_ncat(str, t, s - t);
+ str_ncat(str, "," ,1);
+ while (s < eol && (isspace(*s) || *s == ';'))
+ s++;
+ t = s;
+ break;
+ case '$':
+ str_ncat(str, t, s - t);
+ t = s;
+ s = scanident(s,eol,tokenbuf);
+ str_ncat(str, t, s - t);
+ t = s;
+ if (s < eol && *s && index("$'\"",*s))
+ str_ncat(str, ",", 1);
+ break;
+ case '"': case '\'':
+ str_ncat(str, t, s - t);
+ t = s;
+ s++;
+ while (s < eol && (*s != *t || s[-1] == '\\'))
+ s++;
+ if (s < eol)
+ s++;
+ str_ncat(str, t, s - t);
+ t = s;
+ if (s < eol && *s && index("$'\"",*s))
+ str_ncat(str, ",", 1);
+ break;
+ default:
+ yyerror("Please use commas to separate fields");
}
- break;
- case ',': case ';':
- continue;
}
+ str_ncat(str,"$$);",4);
}
- lex_newlines = FALSE;
}
}
badform:
yyerror("Format not terminated");
return froot.f_next;
}
+
+set_csh()
+{
+#ifdef CSH
+ if (!cshlen)
+ cshlen = strlen(cshname);
+#endif
+}
https://perl5.git.perl.org / perl5.git / blobdiff