da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/***********************************************************************
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* This software is part of the ast package *
34f9b3eef6fdadbda0a846aa4d68691ac40eace5Roland Mainz* Copyright (c) 1986-2009 AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* and is licensed under the *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Common Public License, Version 1.0 *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* by AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* A copy of the License is available at *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Information and Software Systems Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* AT&T Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Florham Park NJ *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Glenn Fowler <gsf@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin***********************************************************************/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * Glenn Fowler
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * AT&T Research
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * preprocessor control directive support
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#define RESTORE (COLLECTING|CONDITIONAL|DEFINITION|DIRECTIVE|DISABLE|EOF2NL|HEADER|NOSPACE|NOVERTICAL|PASSEOF|STRIP)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * common predicate assertion operations
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * op is DEFINE or UNDEF
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinstatic void
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register struct pplist* a;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register struct pplist* p;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register struct pplist* q;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p) p->next = q;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else a = q;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * tokenize string ppop()
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * op PP_* op
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * name option name
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * s string of option values
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * n option sense
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * flags TOKOP_* flags
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinstatic void
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chintokop(int op, char* name, register char* s, register int n, int flags)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register int c;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register char* t;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(flags & TOKOP_UNSET) && !n) error(2, "%s: option cannot be unset", name);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!c) break;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (c != ' ')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin ppop(op, (flags & TOKOP_DUP) ? strdup(pp.token) : pp.token, n);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while (*s == ' ') s++;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin for (t = s; *t && *t != ' '; t++);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (*t) *t++ = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else t = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (*s) ppop(op, (flags & TOKOP_DUP) ? strdup(s) : s, n);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin } while (s = t);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * return symbol pointer for next token macro (re)definition
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinstatic struct ppsymbol*
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: invalid macro name", pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((sym->flags & SYM_FINAL) && (pp.mode & HOSTED)) return 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: macro is %s", sym->name, (sym->flags & SYM_READONLY) ? "readonly" : "active");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!sym->macro) sym->macro = newof(0, struct ppmacro, 1, 0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * get one space canonical pplex() line, sans '\n', and place in p
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * x is max+1 pos in p
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * 0 returned if line too large
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * otherwise end of p ('\0') returned
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinstatic char*
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register int c;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register char* s;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (c == ' ')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*ignore*/;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin disable = (c == T_ID && streq(pp.token, pp.pass)) ? 2 : 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (c == ':')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while (*p = *s++)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (++p >= x)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p >= x)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * regex error handler
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * process a single directive line
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register char* p;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register int c;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register int n;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register char* s;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin pp.state |= DIRECTIVE|DISABLE|EOF2NL|NOSPACE|NOVERTICAL;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.state & (COMPATIBILITY|STRICT)) == COMPATIBILITY || (pp.mode & HOSTED)) pp.state &= ~NOVERTICAL;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (c = pplex())
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.state & STRICT) && !(pp.mode & (HOSTED|RELAX)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "# <line> [ \"<file>\" [ <type> ] ]: non-standard directive");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "no matching #%s for #%s", dirname(IF), dirname(ELIF));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.control == (pp.in->control + 1)) pp.in->flags |= IN_noguard;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "invalid #%s after #%s", dirname(ELIF), dirname(ELSE));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.option & ELSEIF) && (c = pplex()) == T_ID && ((n = (int)hashref(pp.dirtab, pp.token)) == IF || n == IFDEF || n == IFNDEF))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "#%s %s is non-standard -- use #%s", dirname(directive), dirname(n), dirname(ELIF));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.control <= pp.in->control) error(2, "no matching #%s for #%s", dirname(IF), dirname(ELSE));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.control == (pp.in->control + 1)) pp.in->flags |= IN_noguard;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (*pp.control & HADELSE) error(2, "more than one #%s for #%s", dirname(ELSE), dirname(IF));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.control <= pp.in->control) error(2, "no matching #%s for #%s", dirname(IF), dirname(ENDIF));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (--pp.control == pp.in->control && pp.in->symbol)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.in->flags & IN_endguard) pp.in->flags |= IN_noguard;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (directive == IFNDEF && pp.control == pp.in->control + 1)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin pp.in->symbol = sym ? sym : pprefmac(pp.token, REF_CREATE);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "%s: invalid macro name", pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *pp.control |= ((sym != 0) == (directive == IFDEF)) ? KEPT : SKIP;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (c = pplex())
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin do pp.token = pp.toknxt; while ((c = pplex()) == T_STRING);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*FALLTHROUGH*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "#%s: reference to %s is not portable", dirname(INCLUDE), pp.token);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * HEADEREXPAND|HEADEREXPANDALL gets us here
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(p = pp.hdrbuf) && !(p = pp.hdrbuf = newof(0, char, MAXTOKEN, 0)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin v = p + 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p == v && *(p - 1) == ' ' && pp.in->type != IN_MACRO)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "#%s: \"...\" or <...> argument expected", dirname(INCLUDE));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*UNDENT*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *p++ = '#';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(i1 = regexec(&map->re, p, elementsof(match), match, 0)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.state & (STRICT|WARN)) && !(pp.mode & (HOSTED|RELAX)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(pp.state & WARN) || strcmp(p + 1, dirname(PRAGMA)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(i0 = regexec(&edit->re, p, elementsof(match), match, 0)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (i0 = regsubexec(&edit->re, p, elementsof(match), match))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (n && *p)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while (*s = *p++) s++;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *s++ = '\n';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (directive != PRAGMA && (!(*pp.control & SKIP) || !(pp.mode & (HOSTED|RELAX))))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "%s: unknown directive", pptokstr(pp.valbuf, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(*pp.control & SKIP) && pp.pragma && !(pp.state & NOTEXT) && (directive == PRAGMA || !(pp.mode & INIT)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while (*p)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p = (char*)memchr(pp.valbuf + 1, MARK, p6 - pp.valbuf - 1))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while (p < p6) switch (*s++ = *p++)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin (*pp.pragma)(pp.valbuf + 1, p1, p3, p5, (pp.state & COMPILE) || (pp.mode & INIT) != 0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*INDENT*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "no matching #%s for #%s", dirname(MACDEF), dirname(ENDMAC));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.state & STRICT) && !(pp.mode & (HOSTED|RELAX)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*FALLTHROUGH*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (c == '<')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.option & ALLPOSSIBLE) && !pp.in->prev->prev && mac->value)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sym->flags &= ~(SYM_BUILTIN|SYM_EMPTY|SYM_FINAL|SYM_FUNCTION|SYM_INIT|SYM_INITIAL|SYM_MULTILINE|SYM_NOEXPAND|SYM_PREDEFINED|SYM_REDEFINE|SYM_VARIADIC);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (c = pplex())
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *p++ = ' ';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else error(2, "%s: formal argument %s ignored", sym->name, pp.token);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (c = pplex())
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (c)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case '\n':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p > formvals[mac->arity - 1] && *(p - 1) == ' ') *--p = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p > formvals[mac->arity - 1] && *(p - 1) == ' ') *--p = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p > formvals[mac->arity - 1] && *(p - 1) == ' ') continue;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p > &mac->formals[n - MAXTOKEN] && (s = newof(mac->formals, char, n += MAXTOKEN, 0)) != mac->formals)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin p = mac->formals = oldof(0, char, 0, MAXFORMALS * (MAXID + 1));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "%s: macro formal argument expected", sym->name);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: %s: duplicate macro formal argument", sym->name, pp.token);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (c == T_ID)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: %s: macro formal argument cannot follow ...", sym->name, v);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: %s: invalid macro formal argument", sym->name, v);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: %s: duplicate macro formal argument", sym->name, v);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: %s: macro formal argument ignored", sym->name, v);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "%s: macro formal argument expected", sym->name);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (c != T_VARIADIC)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: %s: duplicate macro formal argument", sym->name, pp.token);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (mac->arity && (s = newof(mac->formals, char, p - mac->formals, 0)) != mac->formals)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (c)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: invalid macro formal argument list", sym->name);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case '\t':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.option & PLUSPLUS) && (pp.state & (COMPATIBILITY|TRANSITION)) != COMPATIBILITY)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (c)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *p++ = ' ';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (c)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (var.type != TOK_TOKCAT && p > mac->value && *(p - 1) != ' ' && !(pp.option & PRESERVE)) *p++ = ' ';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.state & (COMPATIBILITY|TRANSITION)) == COMPATIBILITY) *p++ = 'C';
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if ((pp.state & WARN) && !(pp.mode & (HOSTED|RELAX)) && var.type != TOK_TOKCAT && !(var.type & TOK_ID))
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (c == '\n')
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin else if (c == '=' || ppisidig(c) || c == *s || *s == '=')
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if ((var.type & TOK_ID) || o == ' ' || ppisseparate(o))
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (!((o == 0 || o == '(' || o == ')' || o == '[' || o == ']' || o == ',' || o == '|' || o == ';' || o == '{' || o == '}') && (c == '(' || c == ')' || c == '[' || c == ']' || c == ',' || c == '|' || c == ';' || c == '}' || c == 0)) && !(o == '*' && c == ')'))
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin error(1, "%s: %s: formal should be parenthesized in macro value (t=%x o=%#c c=%#c)", sym->name, pp.token, var.type, o, c);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (var.type == TOK_BUILTIN) switch ((int)hashget(pp.strtab, pp.token))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (pp.hiding && (var.symbol = ppsymref(pp.symtab, pp.token)) && var.symbol->hidden)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin for (var.inp = pp.in; var.inp->type != IN_FILE && var.inp->prev; var.inp = var.inp->prev);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin p += sfsprintf(p, MAXTOKEN, "_%d_%s_hIDe", var.inp->hide, pp.token);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(sym->flags & (SYM_FUNCTION|SYM_MULTILINE))) break;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (c == '@')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /* PARSE HEADER constant */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *p++ = '#';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p > mac->value && ppisidig(*(p - 1)) && !(pp.option & PRESERVE)) *p++ = ' ';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p <= mac->value) error(2, "%s lhs operand omitted", pp.token);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (c == '\n') error(2, "%s rhs operand omitted", pptokchr(T_TOKCAT));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*UNDENT*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((sym->flags & SYM_FUNCTION) && (pp.state & (COMPATIBILITY|TRANSITION)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!*s) goto checkvalue;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while (ppisid(*++s));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *p++ = 'C';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(pp.mode & HOSTED) && (!(pp.state & COMPATIBILITY) || (pp.state & WARN))) switch (*pp.token)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "use the # operator to \"...\" quote macro arguments");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case '\'':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "macro arguments should be '...' quoted before substitution");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else *p++ = *s++;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*INDENT*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case '\n':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: missing #%s", sym->name, dirname(ENDMAC));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case '\t':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.state & WARN) error(1, "use the ## operator to concatenate macro arguments");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*FALLTHROUGH*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p > &mac->value[n - MAXTOKEN] && (s = newof(mac->value, char, n += MAXTOKEN, 0)) != mac->value)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p > mac->value && (pp.option & PLUSPLUS) && (pp.state & (COMPATIBILITY|TRANSITION)) != COMPATIBILITY)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (o)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *p++ = ' ';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin mac->formkeys = newof(0, struct ppkeyarg, n, p1 - p0 + 1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((i0 & SYM_FUNCTION) != (sym->flags & SYM_FUNCTION) || old.arity != mac->arity || !streq(old.value, mac->value)) goto redefined;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!streq(mac->formkeys[n].name, old.formkeys[n].name) || !streq(mac->formkeys[n].value, old.formkeys[n].value))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin mac->value = newof(mac->value, char, (mac->size = p - mac->value) + 1, 0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.option & (DEFINITIONS|PREDEFINITIONS|REGUARD)) && !sym->hidden && !(sym->flags & SYM_MULTILINE) && ((pp.option & PREDEFINITIONS) || !(pp.mode & INIT)) && ((pp.option & (DEFINITIONS|PREDEFINITIONS)) || !(pp.state & NOTEXT)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while (n = *p++)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (n == 'Q')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while ((n = *s++) && n != ',')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.option & PREDEFINED) sym->flags |= SYM_PREDEFINED;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.macref) (*pp.macref)(sym, error_info.file, n2, mac ? error_info.line - n2 + 1 : REF_UNDEF, mac ? strsum(mac->value, (long)mac->arity) : 0L);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.state & STRICT) && !(pp.mode & (HOSTED|RELAX)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "#%s #%s: assertions are non-standard", dirname(directive), pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: invalid predicate name", pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(tp = newof(0, struct pptuple, 1, strlen(pp.token))))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: > omitted in tuple macro definition", sym->name);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin p = v = oldof(0, char, 0, n);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p > v || c != ' ')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (p > &v[n - MAXTOKEN] && (s = newof(v, char, n += MAXTOKEN, 0)) != v)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin c = p - v;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin p = v + c;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin n = p - v;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.state & STRICT) && !(pp.mode & (HOSTED|RELAX)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*FALLTHROUGH*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin p = *pp.tmpbuf ? pp.tmpbuf : ((directive == WARNING) ? "user warning" : "user error");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.state & STRICT) && !(pp.mode & (HOSTED|RELAX)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sym->flags &= ~(SYM_BUILTIN|SYM_FUNCTION|SYM_MULTILINE|SYM_PREDEFINED|SYM_VARIADIC);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.option & KEYARGS) && mac->formkeys) free(mac->formkeys);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (i1) c = sfsprintf(pp.tmpbuf, MAXTOKEN, "%luU", n1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (n < ++c)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (error_info.line == 0 && directive == LINE && (pp.state & STRICT) && !(pp.mode & HOSTED))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "#%s: line number should be > 0", dirname(LINE));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (c = pplex())
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin switch (c = pplex())
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case '\n':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (directive == LINE && (pp.state & STRICT) && !(pp.mode & (HOSTED|RELAX)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "#%s: integer file type argument is non-standard", dirname(LINE));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "#%s: integer file type argument expected", dirname(LINE));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.insert) (*pp.incref)(s, error_info.file, n, PP_SYNC_INSERT);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else (*pp.incref)(s, error_info.file, n, PP_SYNC_PUSH);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.insert) (*pp.incref)(s, error_info.file, n, PP_SYNC_INSERT);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else (*pp.incref)(s, error_info.file, n - 1, PP_SYNC_POP);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.insert) (*pp.incref)(s, error_info.file, n, PP_SYNC_INSERT);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case '\n':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "#%s: \"file-name\" expected", dirname(LINE));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (directive == LINE && (pp.in->flags & IN_ignoreline))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * #pragma [STDC] [pass:] [no]option [arg ...]
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * pragma args are not expanded by default
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * if STDC is present then it is silently passed on
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * if pass is pp.pass then the option is used
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * and verified but is not passed on
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * if pass is omitted then the option is passed on
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * otherwise if pass is non-null and not pp.pass then
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * the option is passed on but not used
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * if the line does not match this form then
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * it is passed on unchanged
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * #directive pass: option [...]
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * ^ ^ ^ ^ ^ ^ ^ ^
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * pp.valbuf p0 p1 p2 p3 p4 p5 p6
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * p? 0 if component omitted
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * i0 0 if ``no''option
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *p++ = '#';
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(p6 = getline(p, &pp.valbuf[MAXTOKEN], !!(pp.option & PRAGMAEXPAND))))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while (ppisid(*p))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (*p != ':')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while (ppisid(*p))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!p1 && p3 && (p4 - p3) == 4 && strneq(p3, "STDC", 4))
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if ((pp.state & WARN) && (pp.mode & (HOSTED|RELAX|PEDANTIC)) == PEDANTIC)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "#%s: non-standard directive", dirname(PRAGMA));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (((i1 = (int)hashref(pp.strtab, p3 + (i0 ? 0 : 2))) < 1 || i1 > X_last_option) && (i0 || (i1 = (int)hashref(pp.strtab, p3)) > X_last_option))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.state & (COMPATIBILITY|STRICT)) == STRICT && !(pp.mode & (HOSTED|RELAX)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "#%s: non-standard directive ignored", dirname(PRAGMA));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if (!i1)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else if ((pp.state & STRICT) && !(pp.mode & (HOSTED|RELAX)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin tokop(PP_CDIR, p3, p, i0, TOKOP_UNSET|TOKOP_STRING|TOKOP_DUP);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(3, "%s: preprocessor not compiled with checkpoint enabled", p3);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error_info.trace = i0 ? (p ? -strtol(p, NiL, 0) : -1) : 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /* UNDENT...*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while (c = pplex())
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (c != T_ID) error(1, "%s: %s: identifier expected", p3, pp.token);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!sym->hidden && !(sym->hidden = newof(0, struct pphide, 1, 0)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (sym->macro && !(sym->flags & (SYM_ACTIVE|SYM_READONLY)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sym->flags &= ~(SYM_BUILTIN|SYM_FUNCTION|SYM_INIT|SYM_MULTILINE|SYM_PREDEFINED|SYM_REDEFINE|SYM_VARIADIC);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((mac = sym->macro) && !(sym->flags & (SYM_ACTIVE|SYM_READONLY)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sym->flags &= ~(SYM_BUILTIN|SYM_FUNCTION|SYM_INIT|SYM_MULTILINE|SYM_PREDEFINED|SYM_REDEFINE|SYM_VARIADIC);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*...INDENT*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin tokop(PP_HOSTDIR, p3, p, i0, TOKOP_UNSET|TOKOP_STRING|TOKOP_DUP);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin ppop(PP_LINETYPE, i0 ? (p ? strtol(p, NiL, 0) : 1) : 0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin (*pp.macref)(pprefmac(p, REF_CREATE), error_info.file, error_info.line - (c == REF_NORMAL ? 2 : 1), c, (s = strchr(s, ' ')) ? strtol(s, NiL, 0) : 0L);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*UNDENT*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * #pragma pp:map [id ...] "/from/[,/to/]" [ "/old/new/[glnu]" ... ]
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sfsprintf(pp.tmpbuf, MAXTOKEN, "__%s__", s = pp.token);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: %s: address argument expected", p3, pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (i0 = regcomp(&map->re, s, REG_AUGMENTED|REG_DELIMITED|REG_LENIENT|REG_NULL))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: invalid characters after pattern: %s ", p3, s);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * /old/new/[flags]
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(i0 = regcomp(&edit->re, s, REG_AUGMENTED|REG_DELIMITED|REG_LENIENT|REG_NULL)) && !(i0 = regsubcomp(&edit->re, s += edit->re.re_npat, NiL, 0, 0)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: invalid characters after substitution: %s ", p3, s);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: %s: substitution argument expected", p3, pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*INDENT*/
34f9b3eef6fdadbda0a846aa4d68691ac40eace5Roland Mainz if (pp.in->type == IN_FILE || pp.in->type == IN_RESCAN)
34f9b3eef6fdadbda0a846aa4d68691ac40eace5Roland Mainz ppmultiple(ppsetfile(error_info.file), i0 ? INC_CLEAR : INC_IGNORE);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * this option doesn't bump the token count
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "preprocessor not compiled with prototype conversion enabled");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin tokop(PP_STANDARD, p3, p, i0, TOKOP_UNSET|TOKOP_STRING|TOKOP_DUP);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin ppop(PP_TRUNCATE, i0 ? (p ? strtol(p, NiL, 0) : TRUNCLENGTH) : 0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin tokop(PP_VENDOR, p3, p, i0, TOKOP_UNSET|TOKOP_STRING|TOKOP_DUP);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(*pp.control & SKIP) && pp.pragma && !(pp.state & NOTEXT))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin (*pp.pragma)(dirname(PRAGMA), pp.pass, p3, pp.tmpbuf, !n);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(PANIC, "%s: option recognized but not implemented", pp.valbuf);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.state & STRICT) && !(pp.mode & (HOSTED|RELAX)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "%s: invalid macro name", pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(sym = pprefmac(pp.token, REF_DELETE)) || !sym->macro)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: macro is %s", sym->name, (sym->flags & SYM_READONLY) ? "readonly" : "active");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "%s: invalid macro name", pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: macro is %s", var.symbol->name, (var.symbol->flags & SYM_READONLY) ? "readonly" : "active");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (!(pp.mode & HOSTED) || !(var.symbol->flags & SYM_INITIAL))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sym->flags &= ~(SYM_BUILTIN|SYM_FUNCTION|SYM_INIT|SYM_MULTILINE|SYM_PREDEFINED|SYM_REDEFINE|SYM_VARIADIC);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "%s: invalid macro name", pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(2, "%s: macro is %s", sym->name, (sym->flags & SYM_READONLY) ? "readonly" : "active");
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((pp.option & (DEFINITIONS|PREDEFINITIONS|REGUARD)) && !sym->hidden && !(sym->flags & SYM_MULTILINE) && ((pp.option & PREDEFINITIONS) || !(pp.mode & INIT)) && ((pp.option & (DEFINITIONS|PREDEFINITIONS)) || !(pp.state & NOTEXT)))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sym->flags &= ~(SYM_BUILTIN|SYM_FUNCTION|SYM_INIT|SYM_MULTILINE|SYM_PREDEFINED|SYM_REDEFINE|SYM_VARIADIC);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(PANIC, "#%s: directive recognized but not implemented", pp.token);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case '\n':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "%s: invalid directive name", pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (c != '\n')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if ((c = pplex()) != '\n' && (pp.mode & (HOSTED|PEDANTIC)) == PEDANTIC)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin error(1, "%s: invalid characters after directive", pptokstr(pp.token, 0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (c != '\n')
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if (pp.include)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin pp.include = 0;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin (*pp.incref)(error_info.file, ppgetfile(pp.path)->name, error_info.line, PP_SYNC_IGNORE);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin (*pp.linesync)(error_info.line, ppgetfile(pp.path)->name);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*FALLTHROUGH*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /*FALLTHROUGH*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * grow the pp nesting control stack