/* a2py.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
* 2000, 2001, 2002, by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
#if defined(OS2) || defined(WIN32) || defined(NETWARE)
#if defined(WIN32)
#include <io.h>
#endif
#if defined(NETWARE)
#include "../netware/clibstuf.h"
#endif
#include "../patchlevel.h"
#endif
#include "util.h"
#include "../unicode_constants.h"
#define DELETE_CHAR DELETE_NATIVE
const char *filename;
const char *myname;
int checkers = 0;
int oper0(int type);
int oper1(int type, int arg1);
int oper2(int type, int arg1, int arg2);
int oper3(int type, int arg1, int arg2, int arg3);
int oper4(int type, int arg1, int arg2, int arg3, int arg4);
int oper5(int type, int arg1, int arg2, int arg3, int arg4, int arg5);
STR *walk(int useval, int level, register int node, int *numericptr, int minprec);
#ifdef NETWARE
char *savestr(char *str);
char *cpy2(register char *to, register char *from, register int delim);
#endif
#if defined(OS2) || defined(WIN32) || defined(NETWARE)
static void usage(void);
static void
usage()
{
printf("\nThis is the AWK to PERL translator, revision %d.0, version %d\n", PERL_REVISION, PERL_VERSION);
printf("\nUsage: %s [-D<number>] [-F<char>] [-n<fieldlist>] [-<number>] filename\n", myname);
printf("\n -D<number> sets debugging flags."
"\n -F<character> the awk script to translate is always invoked with"
"\n this -F switch."
"\n -n<fieldlist> specifies the names of the input fields if input does"
"\n not have to be split into an array."
"\n -<number> causes a2p to assume that input will always have that"
"\n many fields.\n");
exit(1);
}
#endif
#ifdef __osf__
#pragma message disable (mainparm) /* We have the envp in main(). */
#endif
int
main(register int argc, register const char **argv, register const char **env)
{
STR *str;
int i;
STR *tmpstr;
/* char *namelist; */
#ifdef NETWARE
fnInitGpfGlobals(); /* For importing the CLIB calls in place of Watcom calls */
#endif /* NETWARE */
myname = argv[0];
linestr = str_new(80);
str = str_new(0); /* first used for -I flags */
for (argc--,argv++; argc; argc--,argv++) {
if (argv[0][0] != '-' || !argv[0][1])
break;
switch (argv[0][1]) {
#ifdef DEBUGGING
case 'D':
debug = atoi(argv[0]+2);
#if YYDEBUG
yydebug = (debug & 1);
#endif
break;
#endif
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
maxfld = atoi(argv[0]+1);
absmaxfld = TRUE;
break;
case 'F':
fswitch = argv[0][2];
break;
case 'n':
namelist = savestr(argv[0]+2);
break;
case 'o':
old_awk = TRUE;
break;
case '-':
argc--,argv++;
goto switch_end;
case 0:
break;
default:
#if defined(OS2) || defined(WIN32) || defined(NETWARE)
fprintf(stderr, "Unrecognized switch: %s\n",argv[0]);
usage();
#else
fatal("Unrecognized switch: %s\n",argv[0]);
#endif
}
}
switch_end:
/* open script */
if (argv[0] == NULL) {
#if defined(OS2) || defined(WIN32) || defined(NETWARE)
if ( isatty(fileno(stdin)) )
usage();
#endif
argv[0] = "-";
}
filename = savestr(argv[0]);
if (strEQ(filename,"-"))
argv[0] = "";
if (!*argv[0])
rsfp = stdin;
else
rsfp = fopen(argv[0],"r");
if (rsfp == NULL)
fatal("Awk script \"%s\" doesn't seem to exist.\n",filename);
/* init tokener */
bufptr = str_get(linestr);
symtab = hnew();
curarghash = hnew();
/* now parse the report spec */
if (yyparse())
fatal("Translation aborted due to syntax errors.\n");
#ifdef DEBUGGING
if (debug & 2) {
int type, len;
for (i=1; i<mop;) {
type = ops[i].ival;
len = type >> 8;
type &= 255;
printf("%d\t%d\t%d\t%-10s",i++,type,len,opname[type]);
if (type == OSTRING)
printf("\t\"%s\"\n",ops[i].cval),i++;
else {
while (len--) {
printf("\t%d",ops[i].ival),i++;
}
putchar('\n');
}
}
}
if (debug & 8)
dump(root);
#endif
/* first pass to look for numeric variables */
prewalk(0,0,root,&i);
/* second pass to produce new program */
tmpstr = walk(0,0,root,&i,P_MIN);
str = str_make(STARTPERL);
str_cat(str, "\neval 'exec ");
str_cat(str, BIN);
str_cat(str, "/perl -S $0 ${1+\"$@\"}'\n\
if $running_under_some_shell;\n\
# this emulates #! processing on NIH machines.\n\
# (remove #! line above if indigestible)\n\n");
str_cat(str,
"eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_0-9]+=)(.*)/ && shift;\n");
str_cat(str,
" # process any FOO=bar switches\n\n");
if (do_opens && opens) {
str_scat(str,opens);
str_free(opens);
str_cat(str,"\n");
}
str_scat(str,tmpstr);
str_free(tmpstr);
#ifdef DEBUGGING
if (!(debug & 16))
#endif
fixup(str);
putlines(str);
if (checkers) {
fprintf(stderr,
"Please check my work on the %d line%s I've marked with \"#???\".\n",
checkers, checkers == 1 ? "" : "s" );
fprintf(stderr,
"The operation I've selected may be wrong for the operand types.\n");
}
exit(0);
/* by ANSI specs return is needed. This also shuts up VC++ and his warnings */
return(0);
}
#define RETURN(retval) return (bufptr = s,retval)
#define XTERM(retval) return (expectterm = TRUE,bufptr = s,retval)
#define XOP(retval) return (expectterm = FALSE,bufptr = s,retval)
#define ID(x) return (yylval=string(x,0),expectterm = FALSE,bufptr = s,idtype)
int idtype;
int
yylex(void)
{
char *s = bufptr;
char *d;
int tmp;
retry:
#if YYDEBUG
if (yydebug) {
if (strchr(s,'\n'))
fprintf(stderr,"Tokener at %s",s);
else
fprintf(stderr,"Tokener at %s\n",s);
}
#endif
switch (*s) {
default:
fprintf(stderr,
"Unrecognized character %c in file %s line %d--ignoring.\n",
*s++,filename,line);
goto retry;
case '\\':
s++;
if (*s && *s != '\n') {
yyerror("Ignoring spurious backslash");
goto retry;
}
/*FALLSTHROUGH*/
case 0:
s = str_get(linestr);
*s = '\0';
if (!rsfp)
RETURN(0);
line++;
if ((s = str_gets(linestr, rsfp)) == NULL) {
if (rsfp != stdin)
fclose(rsfp);
rsfp = NULL;
s = str_get(linestr);
RETURN(0);
}
goto retry;
case ' ': case '\t':
s++;
goto retry;
case '\n':
*s = '\0';
XTERM(NEWLINE);
case '#':
yylval = string(s,0);
*s = '\0';
XTERM(COMMENT);
case ';':
tmp = *s++;
if (*s == '\n') {
s++;
XTERM(SEMINEW);
}
XTERM(tmp);
case '(':
tmp = *s++;
XTERM(tmp);
case '{':
case '[':
case ')':
case ']':
case '?':
case ':':
tmp = *s++;
XOP(tmp);
case DELETE_CHAR:
s++;
XTERM('}');
case '}':
for (d = s + 1; isSPACE(*d); d++) ;
if (!*d)
s = d - 1;
*s = 127;
XTERM(';');
case ',':
tmp = *s++;
XTERM(tmp);
case '~':
s++;
yylval = string("~",1);
XTERM(MATCHOP);
case '+':
case '-':
if (s[1] == *s) {
s++;
if (*s++ == '+')
XTERM(INCR);
else
XTERM(DECR);
}
/* FALL THROUGH */
case '*':
case '%':
case '^':
tmp = *s++;
if (*s == '=') {
if (tmp == '^')
yylval = string("**=",3);
else
yylval = string(s-1,2);
s++;
XTERM(ASGNOP);
}
XTERM(tmp);
case '&':
s++;
tmp = *s++;
if (tmp == '&')
XTERM(ANDAND);
s--;
XTERM('&');
case '|':
s++;
tmp = *s++;
if (tmp == '|')
XTERM(OROR);
s--;
while (*s == ' ' || *s == '\t')
s++;
if (strnEQ(s,"getline",7))
XTERM('p');
else
XTERM('|');
case '=':
s++;
tmp = *s++;
if (tmp == '=') {
yylval = string("==",2);
XTERM(RELOP);
}
s--;
yylval = string("=",1);
XTERM(ASGNOP);
case '!':
s++;
tmp = *s++;
if (tmp == '=') {
yylval = string("!=",2);
XTERM(RELOP);
}
if (tmp == '~') {
yylval = string("!~",2);
XTERM(MATCHOP);
}
s--;
XTERM(NOT);
case '<':
s++;
tmp = *s++;
if (tmp == '=') {
yylval = string("<=",2);
XTERM(RELOP);
}
s--;
XTERM('<');
case '>':
s++;
tmp = *s++;
if (tmp == '>') {
yylval = string(">>",2);
XTERM(GRGR);
}
if (tmp == '=') {
yylval = string(">=",2);
XTERM(RELOP);
}
s--;
XTERM('>');
#define SNARFWORD \
d = tokenbuf; \
while (isWORDCHAR(*s)) \
*d++ = *s++; \
*d = '\0'; \
d = tokenbuf; \
if (*s == '(') \
idtype = USERFUN; \
else \
idtype = VAR;
case '$':
s++;
if (*s == '0') {
s++;
do_chop = TRUE;
need_entire = TRUE;
idtype = VAR;
ID("0");
}
do_split = TRUE;
if (isDIGIT(*s)) {
for (d = s; isDIGIT(*s); s++) ;
yylval = string(d,s-d);
tmp = atoi(d);
if (tmp > maxfld)
maxfld = tmp;
XOP(FIELD);
}
for (d = s; isWORDCHAR(*s); )
s++;
split_to_array = TRUE;
if (d != s)
{
yylval = string(d,s-d);
XTERM(SVFIELD);
}
XOP(VFIELD);
case '/': /* may either be division or pattern */
if (expectterm) {
s = scanpat(s);
XTERM(REGEX);
}
tmp = *s++;
if (*s == '=') {
yylval = string("/=",2);
s++;
XTERM(ASGNOP);
}
XTERM(tmp);
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9': case '.':
s = scannum(s);
XOP(NUMBER);
case '"':
s++;
s = cpy2(tokenbuf,s,s[-1]);
if (!*s)
fatal("String not terminated:\n%s",str_get(linestr));
s++;
yylval = string(tokenbuf,0);
XOP(STRING);
case 'a': case 'A':
SNARFWORD;
if (strEQ(d,"ARGV")) {
yylval=numary(string("ARGV",0));
XOP(VAR);
}
if (strEQ(d,"atan2")) {
yylval = OATAN2;
XTERM(FUNN);
}
ID(d);
case 'b': case 'B':
SNARFWORD;
if (strEQ(d,"break"))
XTERM(BREAK);
if (strEQ(d,"BEGIN"))
XTERM(BEGIN);
ID(d);
case 'c': case 'C':
SNARFWORD;
if (strEQ(d,"continue"))
XTERM(CONTINUE);
if (strEQ(d,"cos")) {
yylval = OCOS;
XTERM(FUN1);
}
if (strEQ(d,"close")) {
do_fancy_opens = 1;
yylval = OCLOSE;
XTERM(FUN1);
}
if (strEQ(d,"chdir"))
*d = toUPPER(*d);
else if (strEQ(d,"crypt"))
*d = toUPPER(*d);
else if (strEQ(d,"chop"))
*d = toUPPER(*d);
else if (strEQ(d,"chmod"))
*d = toUPPER(*d);
else if (strEQ(d,"chown"))
*d = toUPPER(*d);
ID(d);
case 'd': case 'D':
SNARFWORD;
if (strEQ(d,"do"))
XTERM(DO);
if (strEQ(d,"delete"))
XTERM(DELETE);
if (strEQ(d,"die"))
*d = toUPPER(*d);
ID(d);
case 'e': case 'E':
SNARFWORD;
if (strEQ(d,"END"))
XTERM(END);
if (strEQ(d,"else"))
XTERM(ELSE);
if (strEQ(d,"exit")) {
saw_line_op = TRUE;
XTERM(EXIT);
}
if (strEQ(d,"exp")) {
yylval = OEXP;
XTERM(FUN1);
}
if (strEQ(d,"elsif"))
*d = toUPPER(*d);
else if (strEQ(d,"eq"))
*d = toUPPER(*d);
else if (strEQ(d,"eval"))
*d = toUPPER(*d);
else if (strEQ(d,"eof"))
*d = toUPPER(*d);
else if (strEQ(d,"each"))
*d = toUPPER(*d);
else if (strEQ(d,"exec"))
*d = toUPPER(*d);
ID(d);
case 'f': case 'F':
SNARFWORD;
if (strEQ(d,"FS")) {
saw_FS++;
if (saw_FS == 1 && in_begin) {
for (d = s; *d && isSPACE(*d); d++) ;
if (*d == '=') {
for (d++; *d && isSPACE(*d); d++) ;
if (*d == '"' && d[2] == '"')
const_FS = d[1];
}
}
ID(tokenbuf);
}
if (strEQ(d,"for"))
XTERM(FOR);
else if (strEQ(d,"function"))
XTERM(FUNCTION);
if (strEQ(d,"FILENAME"))
ID("ARGV");
if (strEQ(d,"foreach"))
*d = toUPPER(*d);
else if (strEQ(d,"format"))
*d = toUPPER(*d);
else if (strEQ(d,"fork"))
*d = toUPPER(*d);
else if (strEQ(d,"fh"))
*d = toUPPER(*d);
ID(d);
case 'g': case 'G':
SNARFWORD;
if (strEQ(d,"getline"))
XTERM(GETLINE);
if (strEQ(d,"gsub"))
XTERM(GSUB);
if (strEQ(d,"ge"))
*d = toUPPER(*d);
else if (strEQ(d,"gt"))
*d = toUPPER(*d);
else if (strEQ(d,"goto"))
*d = toUPPER(*d);
else if (strEQ(d,"gmtime"))
*d = toUPPER(*d);
ID(d);
case 'h': case 'H':
SNARFWORD;
if (strEQ(d,"hex"))
*d = toUPPER(*d);
ID(d);
case 'i': case 'I':
SNARFWORD;
if (strEQ(d,"if"))
XTERM(IF);
if (strEQ(d,"in"))
XTERM(IN);
if (strEQ(d,"index")) {
XTERM(INDEX);
}
if (strEQ(d,"int")) {
yylval = OINT;
XTERM(FUN1);
}
ID(d);
case 'j': case 'J':
SNARFWORD;
if (strEQ(d,"join"))
*d = toUPPER(*d);
ID(d);
case 'k': case 'K':
SNARFWORD;
if (strEQ(d,"keys"))
*d = toUPPER(*d);
else if (strEQ(d,"kill"))
*d = toUPPER(*d);
ID(d);
case 'l': case 'L':
SNARFWORD;
if (strEQ(d,"length")) {
yylval = OLENGTH;
XTERM(FUN1);
}
if (strEQ(d,"log")) {
yylval = OLOG;
XTERM(FUN1);
}
if (strEQ(d,"last"))
*d = toUPPER(*d);
else if (strEQ(d,"local"))
*d = toUPPER(*d);
else if (strEQ(d,"lt"))
*d = toUPPER(*d);
else if (strEQ(d,"le"))
*d = toUPPER(*d);
else if (strEQ(d,"locatime"))
*d = toUPPER(*d);
else if (strEQ(d,"link"))
*d = toUPPER(*d);
ID(d);
case 'm': case 'M':
SNARFWORD;
if (strEQ(d,"match")) {
XTERM(MATCH);
}
if (strEQ(d,"m"))
*d = toUPPER(*d);
ID(d);
case 'n': case 'N':
SNARFWORD;
if (strEQ(d,"NF"))
do_chop = do_split = split_to_array = TRUE;
if (strEQ(d,"next")) {
saw_line_op = TRUE;
XTERM(NEXT);
}
if (strEQ(d,"ne"))
*d = toUPPER(*d);
ID(d);
case 'o': case 'O':
SNARFWORD;
if (strEQ(d,"ORS")) {
saw_ORS = TRUE;
ID("\\");
}
if (strEQ(d,"OFS")) {
saw_OFS = TRUE;
ID(",");
}
if (strEQ(d,"OFMT")) {
ID("#");
}
if (strEQ(d,"open"))
*d = toUPPER(*d);
else if (strEQ(d,"ord"))
*d = toUPPER(*d);
else if (strEQ(d,"oct"))
*d = toUPPER(*d);
ID(d);
case 'p': case 'P':
SNARFWORD;
if (strEQ(d,"print")) {
XTERM(PRINT);
}
if (strEQ(d,"printf")) {
XTERM(PRINTF);
}
if (strEQ(d,"push"))
*d = toUPPER(*d);
else if (strEQ(d,"pop"))
*d = toUPPER(*d);
ID(d);
case 'q': case 'Q':
SNARFWORD;
ID(d);
case 'r': case 'R':
SNARFWORD;
if (strEQ(d,"RS")) {
saw_RS = TRUE;
ID("/");
}
if (strEQ(d,"rand")) {
yylval = ORAND;
XTERM(FUN1);
}
if (strEQ(d,"return"))
XTERM(RET);
if (strEQ(d,"reset"))
*d = toUPPER(*d);
else if (strEQ(d,"redo"))
*d = toUPPER(*d);
else if (strEQ(d,"rename"))
*d = toUPPER(*d);
ID(d);
case 's': case 'S':
SNARFWORD;
if (strEQ(d,"split")) {
XOP(SPLIT);
}
if (strEQ(d,"substr")) {
XTERM(SUBSTR);
}
if (strEQ(d,"sub"))
XTERM(SUB);
if (strEQ(d,"sprintf")) {
/* In old awk, { print sprintf("str%sg"),"in" } prints
* "string"; in new awk, "in" is not considered an argument to
* sprintf, so the statement breaks. To support both, the
* grammar treats arguments to SPRINTF_OLD like old awk,
* SPRINTF_NEW like new. Here we return the appropriate one.
*/
XTERM(old_awk ? SPRINTF_OLD : SPRINTF_NEW);
}
if (strEQ(d,"sqrt")) {
yylval = OSQRT;
XTERM(FUN1);
}
if (strEQ(d,"SUBSEP")) {
ID(";");
}
if (strEQ(d,"sin")) {
yylval = OSIN;
XTERM(FUN1);
}
if (strEQ(d,"srand")) {
yylval = OSRAND;
XTERM(FUN1);
}
if (strEQ(d,"system")) {
yylval = OSYSTEM;
XTERM(FUN1);
}
if (strEQ(d,"s"))
*d = toUPPER(*d);
else if (strEQ(d,"shift"))
*d = toUPPER(*d);
else if (strEQ(d,"select"))
*d = toUPPER(*d);
else if (strEQ(d,"seek"))
*d = toUPPER(*d);
else if (strEQ(d,"stat"))
*d = toUPPER(*d);
else if (strEQ(d,"study"))
*d = toUPPER(*d);
else if (strEQ(d,"sleep"))
*d = toUPPER(*d);
else if (strEQ(d,"symlink"))
*d = toUPPER(*d);
else if (strEQ(d,"sort"))
*d = toUPPER(*d);
ID(d);
case 't': case 'T':
SNARFWORD;
if (strEQ(d,"tr"))
*d = toUPPER(*d);
else if (strEQ(d,"tell"))
*d = toUPPER(*d);
else if (strEQ(d,"time"))
*d = toUPPER(*d);
else if (strEQ(d,"times"))
*d = toUPPER(*d);
ID(d);
case 'u': case 'U':
SNARFWORD;
if (strEQ(d,"until"))
*d = toUPPER(*d);
else if (strEQ(d,"unless"))
*d = toUPPER(*d);
else if (strEQ(d,"umask"))
*d = toUPPER(*d);
else if (strEQ(d,"unshift"))
*d = toUPPER(*d);
else if (strEQ(d,"unlink"))
*d = toUPPER(*d);
else if (strEQ(d,"utime"))
*d = toUPPER(*d);
ID(d);
case 'v': case 'V':
SNARFWORD;
if (strEQ(d,"values"))
*d = toUPPER(*d);
ID(d);
case 'w': case 'W':
SNARFWORD;
if (strEQ(d,"while"))
XTERM(WHILE);
if (strEQ(d,"write"))
*d = toUPPER(*d);
else if (strEQ(d,"wait"))
*d = toUPPER(*d);
ID(d);
case 'x': case 'X':
SNARFWORD;
if (strEQ(d,"x"))
*d = toUPPER(*d);
ID(d);
case 'y': case 'Y':
SNARFWORD;
if (strEQ(d,"y"))
*d = toUPPER(*d);
ID(d);
case 'z': case 'Z':
SNARFWORD;
ID(d);
}
}
char *
scanpat(register char *s)
{
char *d;
switch (*s++) {
case '/':
break;
default:
fatal("Search pattern not found:\n%s",str_get(linestr));
}
d = tokenbuf;
for (; *s; s++,d++) {
if (*s == '\\') {
if (s[1] == '/')
*d++ = *s++;
else if (s[1] == '\\')
*d++ = *s++;
else if (s[1] == '[')
*d++ = *s++;
}
else if (*s == '[') {
*d++ = *s++;
do {
if (*s == '\\' && s[1])
*d++ = *s++;
if (*s == '/' || (*s == '-' && s[1] == ']'))
*d++ = '\\';
*d++ = *s++;
} while (*s && *s != ']');
}
else if (*s == '/')
break;
*d = *s;
}
*d = '\0';
if (!*s)
fatal("Search pattern not terminated:\n%s",str_get(linestr));
s++;
yylval = string(tokenbuf,0);
return s;
}
void
yyerror(const char *s)
{
fprintf(stderr,"%s in file %s at line %d\n",
s,filename,line);
}
char *
scannum(register char *s)
{
char *d;
switch (*s) {
case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9': case '0' : case '.':
d = tokenbuf;
while (isDIGIT(*s)) {
*d++ = *s++;
}
if (*s == '.') {
if (isDIGIT(s[1])) {
*d++ = *s++;
while (isDIGIT(*s)) {
*d++ = *s++;
}
}
else
s++;
}
if (strchr("eE",*s) && strchr("+-0123456789",s[1])) {
*d++ = *s++;
if (*s == '+' || *s == '-')
*d++ = *s++;
while (isDIGIT(*s))
*d++ = *s++;
}
*d = '\0';
yylval = string(tokenbuf,0);
break;
}
return s;
}
int
string(const char *ptr, int len)
{
int retval = mop;
ops[mop++].ival = OSTRING + (1<<8);
if (!len)
len = strlen(ptr);
ops[mop].cval = (char *) safemalloc(len+1);
strncpy(ops[mop].cval,ptr,len);
ops[mop++].cval[len] = '\0';
if (mop >= OPSMAX)
fatal("Recompile a2p with larger OPSMAX\n");
return retval;
}
int
oper0(int type)
{
int retval = mop;
if (type > 255)
fatal("type > 255 (%d)\n",type);
ops[mop++].ival = type;
if (mop >= OPSMAX)
fatal("Recompile a2p with larger OPSMAX\n");
return retval;
}
int
oper1(int type, int arg1)
{
int retval = mop;
if (type > 255)
fatal("type > 255 (%d)\n",type);
ops[mop++].ival = type + (1<<8);
ops[mop++].ival = arg1;
if (mop >= OPSMAX)
fatal("Recompile a2p with larger OPSMAX\n");
return retval;
}
int
oper2(int type, int arg1, int arg2)
{
int retval = mop;
if (type > 255)
fatal("type > 255 (%d)\n",type);
ops[mop++].ival = type + (2<<8);
ops[mop++].ival = arg1;
ops[mop++].ival = arg2;
if (mop >= OPSMAX)
fatal("Recompile a2p with larger OPSMAX\n");
return retval;
}
int
oper3(int type, int arg1, int arg2, int arg3)
{
int retval = mop;
if (type > 255)
fatal("type > 255 (%d)\n",type);
ops[mop++].ival = type + (3<<8);
ops[mop++].ival = arg1;
ops[mop++].ival = arg2;
ops[mop++].ival = arg3;
if (mop >= OPSMAX)
fatal("Recompile a2p with larger OPSMAX\n");
return retval;
}
int
oper4(int type, int arg1, int arg2, int arg3, int arg4)
{
int retval = mop;
if (type > 255)
fatal("type > 255 (%d)\n",type);
ops[mop++].ival = type + (4<<8);
ops[mop++].ival = arg1;
ops[mop++].ival = arg2;
ops[mop++].ival = arg3;
ops[mop++].ival = arg4;
if (mop >= OPSMAX)
fatal("Recompile a2p with larger OPSMAX\n");
return retval;
}
int
oper5(int type, int arg1, int arg2, int arg3, int arg4, int arg5)
{
int retval = mop;
if (type > 255)
fatal("type > 255 (%d)\n",type);
ops[mop++].ival = type + (5<<8);
ops[mop++].ival = arg1;
ops[mop++].ival = arg2;
ops[mop++].ival = arg3;
ops[mop++].ival = arg4;
ops[mop++].ival = arg5;
if (mop >= OPSMAX)
fatal("Recompile a2p with larger OPSMAX\n");
return retval;
}
int depth = 0;
void
dump(int branch)
{
int type;
int len;
int i;
type = ops[branch].ival;
len = type >> 8;
type &= 255;
for (i=depth; i; i--)
printf(" ");
if (type == OSTRING) {
printf("%-5d\"%s\"\n",branch,ops[branch+1].cval);
}
else {
printf("(%-5d%s %d\n",branch,opname[type],len);
depth++;
for (i=1; i<=len; i++)
dump(ops[branch+i].ival);
depth--;
for (i=depth; i; i--)
printf(" ");
printf(")\n");
}
}
int
bl(int arg, int maybe)
{
if (!arg)
return 0;
else if ((ops[arg].ival & 255) != OBLOCK)
return oper2(OBLOCK,arg,maybe);
else if ((ops[arg].ival >> 8) < 2)
return oper2(OBLOCK,ops[arg+1].ival,maybe);
else
return arg;
}
void
fixup(STR *str)
{
char *s;
char *t;
for (s = str->str_ptr; *s; s++) {
if (*s == ';' && s[1] == ' ' && s[2] == '\n') {
strcpy(s+1,s+2);
s++;
}
else if (*s == '\n') {
for (t = s+1; isSPACE(*t & 127); t++) ;
t--;
while (isSPACE(*t & 127) && *t != '\n') t--;
if (*t == '\n' && t-s > 1) {
if (s[-1] == '{')
s--;
strcpy(s+1,t);
}
s++;
}
}
}
void
putlines(STR *str)
{
char *d, *s, *t, *e;
int pos, newpos;
d = tokenbuf;
pos = 0;
for (s = str->str_ptr; *s; s++) {
*d++ = *s;
pos++;
if (*s == '\n') {
*d = '\0';
d = tokenbuf;
pos = 0;
putone();
}
else if (*s == '\t')
pos += 7;
if (pos > 78) { /* split a long line? */
*d-- = '\0';
newpos = 0;
for (t = tokenbuf; isSPACE(*t & 127); t++) {
if (*t == '\t')
newpos += 8;
else
newpos += 1;
}
e = d;
while (d > tokenbuf && (*d != ' ' || d[-1] != ';'))
d--;
if (d < t+10) {
d = e;
while (d > tokenbuf &&
(*d != ' ' || d[-1] != '|' || d[-2] != '|') )
d--;
}
if (d < t+10) {
d = e;
while (d > tokenbuf &&
(*d != ' ' || d[-1] != '&' || d[-2] != '&') )
d--;
}
if (d < t+10) {
d = e;
while (d > tokenbuf && (*d != ' ' || d[-1] != ','))
d--;
}
if (d < t+10) {
d = e;
while (d > tokenbuf && *d != ' ')
d--;
}
if (d > t+3) {
char save[2048];
strcpy(save, d);
*d = '\n';
d[1] = '\0';
putone();
putchar('\n');
if (d[-1] != ';' && !(newpos % 4)) {
*t++ = ' ';
*t++ = ' ';
newpos += 2;
}
strcpy(t,save+1);
newpos += strlen(t);
d = t + strlen(t);
pos = newpos;
}
else
d = e + 1;
}
}
}
void
putone(void)
{
char *t;
for (t = tokenbuf; *t; t++) {
*t &= 127;
if (*t == 127) {
*t = ' ';
strcpy(t+strlen(t)-1, "\t#???\n");
checkers++;
}
}
t = tokenbuf;
if (*t == '#') {
if (strnEQ(t,"#!/bin/awk",10) || strnEQ(t,"#! /bin/awk",11))
return;
if (strnEQ(t,"#!/usr/bin/awk",14) || strnEQ(t,"#! /usr/bin/awk",15))
return;
}
fputs(tokenbuf,stdout);
}
int
numary(int arg)
{
STR *key;
int dummy;
key = walk(0,0,arg,&dummy,P_MIN);
str_cat(key,"[]");
hstore(symtab,key->str_ptr,str_make("1"));
str_free(key);
return arg;
}
int
rememberargs(int arg)
{
int type;
STR *str;
if (!arg)
return arg;
type = ops[arg].ival & 255;
if (type == OCOMMA) {
rememberargs(ops[arg+1].ival);
rememberargs(ops[arg+3].ival);
}
else if (type == OVAR) {
str = str_new(0);
hstore(curarghash,ops[ops[arg+1].ival+1].cval,str);
}
else
fatal("panic: unknown argument type %d, line %d\n",type,line);
return arg;
}
int
aryrefarg(int arg)
{
int type = ops[arg].ival & 255;
STR *str;
if (type != OSTRING)
fatal("panic: aryrefarg %d, line %d\n",type,line);
str = hfetch(curarghash,ops[arg+1].cval);
if (str)
str_set(str,"*");
return arg;
}
int
fixfargs(int name, int arg, int prevargs)
{
int type;
STR *str;
int numargs = 0;
if (!arg)
return prevargs;
type = ops[arg].ival & 255;
if (type == OCOMMA) {
numargs = fixfargs(name,ops[arg+1].ival,prevargs);
numargs = fixfargs(name,ops[arg+3].ival,numargs);
}
else if (type == OVAR) {
str = hfetch(curarghash,ops[ops[arg+1].ival+1].cval);
if (strEQ(str_get(str),"*")) {
char tmpbuf[128];
str_set(str,""); /* in case another routine has this */
ops[arg].ival &= ~255;
ops[arg].ival |= OSTAR;
sprintf(tmpbuf,"%s:%d",ops[name+1].cval,prevargs);
fprintf(stderr,"Adding %s\n",tmpbuf);
str = str_new(0);
str_set(str,"*");
hstore(curarghash,tmpbuf,str);
}
numargs = prevargs + 1;
}
else
fatal("panic: unknown argument type %d, arg %d, line %d\n",
type,prevargs+1,line);
return numargs;
}
int
fixrargs(char *name, int arg, int prevargs)
{
int type;
STR *str;
int numargs;
if (!arg)
return prevargs;
type = ops[arg].ival & 255;
if (type == OCOMMA) {
numargs = fixrargs(name,ops[arg+1].ival,prevargs);
numargs = fixrargs(name,ops[arg+3].ival,numargs);
}
else {
char *tmpbuf = (char *) safemalloc(strlen(name) + (sizeof(prevargs) * 3) + 5);
sprintf(tmpbuf,"%s:%d",name,prevargs);
str = hfetch(curarghash,tmpbuf);
safefree(tmpbuf);
if (str && strEQ(str->str_ptr,"*")) {
if (type == OVAR || type == OSTAR) {
ops[arg].ival &= ~255;
ops[arg].ival |= OSTAR;
}
else
fatal("Can't pass expression by reference as arg %d of %s\n",
prevargs+1, name);
}
numargs = prevargs + 1;
}
return numargs;
}