WebSVN – tendra.SVN – Diff – /trunk/src/producers/common/parse/lex.c

+/*
+ * Copyright (c) 2002-2005 The TenDRA Project <http://www.tendra.org/>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of The TenDRA Project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific, prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
+ * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $Id$
+ */
 /*
     		 Crown Copyright (c) 1997
     This TenDRA(r) Computer Program is subject to Copyright
     owned by the United Kingdom Secretary of State for Defence
     acting through the Defence Evaluation and Research Agency
     (DERA).  It is made available to Recipients with a
     royalty-free licence for its use, reproduction, transfer
     to other parties and amendment for any purpose not excluding
     product development provided that any such use et cetera
     shall be deemed to be acceptance of the following conditions:-
         (1) Its Recipients shall ensure that this Notice is
         reproduced upon any copies or amended versions of it;
         (2) Any amended version of it shall be clearly marked to
         show both the nature of and the organisation responsible
         for the relevant amendment or amendments;
         (3) Its onward transfer from a recipient to another
         party shall be deemed to be that party's acceptance of
         these conditions;
         (4) DERA gives no warranty or assurance as to its
         quality or suitability for any purpose and DERA accepts
         no liability whatsoever in relation to any use to which
         it may be put.
 */
     These flags control the behaviour of the parser and determine whether
     such features as trigraphs and digraphs are allowed.
 */
-int allow_trigraphs = 1 ;
+int allow_trigraphs = 1;
-int allow_digraphs = 1 ;
+int allow_digraphs = 1;
-int allow_unicodes = LANGUAGE_CPP ;
+int allow_unicodes = LANGUAGE_CPP;
-int allow_multibyte = 1 ;
+int allow_multibyte = 1;
-int allow_cpp_comments = LANGUAGE_CPP ;
+int allow_cpp_comments = LANGUAGE_CPP;
-int allow_dos_newline = 0 ;
+int allow_dos_newline = 0;
-int allow_extra_symbols = 0 ;
+int allow_extra_symbols = 0;
-int allow_iso_keywords = LANGUAGE_CPP ;
+int allow_iso_keywords = LANGUAGE_CPP;
-int allow_newline_strings = 0 ;
+int allow_newline_strings = 0;
-int analyse_comments = 1 ;
+int analyse_comments = 1;
-unsigned long max_id_length = 1024 ;
+unsigned long max_id_length = 1024;
 /*
     TABLE OF SYMBOLS AND KEYWORDS
     This table gives the mapping between lexical token numbers and the
     corresponding symbols and keywords.  It is derived from the list of
     tokens in symbols.h.
 */
-CONST char *token_names [] = {
+CONST char *token_names[] = {
-#define LEX_TOKEN( A, B, C )		( B ),
+#define LEX_TOKEN(A, B, C)		(B),
 #include "symbols.h"
 #undef LEX_TOKEN
-    NULL
+	NULL
-} ;
+};
 /*
     TRANSLATION A LEXICAL TOKEN TO ITS PRIMARY FORM
     This routine translates the alternative ISO keywords and digraphs
     into their primary form.
 */
-int primary_form
+int
-    PROTO_N ( ( t ) )
-    PROTO_T ( int t )
+primary_form(int t)
+{
-    int u = t ;
+	int u = t;
-    switch ( u ) {
+	switch (u) {
+	case lex_and_H2:
+		u = lex_and_H1;
+		break;
-	case lex_and_H2 : u = lex_and_H1 ; break ;
+	case lex_and_Heq_H2:
-	case lex_and_Heq_H2 : u = lex_and_Heq_H1 ; break ;
+		u = lex_and_Heq_H1;
+		break;
-	case lex_close_Hbrace_H2 : u = lex_close_Hbrace_H1 ; break ;
+	case lex_close_Hbrace_H2:
+		u = lex_close_Hbrace_H1;
+		break;
-	case lex_close_Hsquare_H2 : u = lex_close_Hsquare_H1 ; break ;
+	case lex_close_Hsquare_H2:
+		u = lex_close_Hsquare_H1;
+		break;
-	case lex_compl_H2 : u = lex_compl_H1 ; break ;
+	case lex_compl_H2:
+		u = lex_compl_H1;
+		break;
+	case lex_hash_H2:
+		u = lex_hash_H1;
+		break;
-	case lex_hash_H2 : u = lex_hash_H1 ; break ;
+	case lex_hash_Hhash_H2:
-	case lex_hash_Hhash_H2 : u = lex_hash_Hhash_H1 ; break ;
+		u = lex_hash_Hhash_H1;
+		break;
-	case lex_logical_Hand_H2 : u = lex_logical_Hand_H1 ; break ;
+	case lex_logical_Hand_H2:
+		u = lex_logical_Hand_H1;
+		break;
-	case lex_logical_Hor_H2 : u = lex_logical_Hor_H1 ; break ;
+	case lex_logical_Hor_H2:
+		u = lex_logical_Hor_H1;
+		break;
+	case lex_not_H2:
+		u = lex_not_H1;
+		break;
-	case lex_not_H2 : u = lex_not_H1 ; break ;
+	case lex_not_Heq_H2:
-	case lex_not_Heq_H2 : u = lex_not_Heq_H1 ; break ;
+		u = lex_not_Heq_H1;
+		break;
-	case lex_open_Hbrace_H2 : u = lex_open_Hbrace_H1 ; break ;
+	case lex_open_Hbrace_H2:
+		u = lex_open_Hbrace_H1;
+		break;
-	case lex_open_Hsquare_H2 : u = lex_open_Hsquare_H1 ; break ;
+	case lex_open_Hsquare_H2:
+		u = lex_open_Hsquare_H1;
+		break;
+	case lex_or_H2:
+		u = lex_or_H1;
+		break;
-	case lex_or_H2 : u = lex_or_H1 ; break ;
+	case lex_or_Heq_H2:
-	case lex_or_Heq_H2 : u = lex_or_Heq_H1 ; break ;
+		u = lex_or_Heq_H1;
+		break;
+	case lex_xor_H2:
+		u = lex_xor_H1;
+		break;
-	case lex_xor_H2 : u = lex_xor_H1 ; break ;
+	case lex_xor_Heq_H2:
-	case lex_xor_Heq_H2 : u = lex_xor_Heq_H1 ; break ;
+		u = lex_xor_Heq_H1;
+		break;
-    }
+	}
-    return ( u ) ;
+	return(u);
+}
 /*
     REPORT A DIGRAPH TOKEN
     This routine reports the digraph t, returning the primary form of t.
 */
-int get_digraph
+int
-    PROTO_N ( ( t ) )
-    PROTO_T ( int t )
+get_digraph(int t)
+{
-    int u = primary_form ( t ) ;
+	int u = primary_form(t);
-    if ( u != t ) {
+	if (u != t) {
-	update_column () ;
+		update_column();
-	report ( crt_loc, ERR_lex_digraph_replace ( t, u ) ) ;
+		report(crt_loc, ERR_lex_digraph_replace(t, u));
-    }
+	}
-    return ( u ) ;
+	return(u);
+}
 /*
     CREATE A KEYWORD
     This routine creates a keyword identifier with name nm and lexical
     token number key.  The special case when key is lex_unknown is used
     to indicate a reserved identifier.
 */
-IDENTIFIER make_keyword
+IDENTIFIER
-    PROTO_N ( ( nm, key, id ) )
-    PROTO_T ( HASHID nm X int key X IDENTIFIER id )
+make_keyword(HASHID nm, int key, IDENTIFIER id)
 {
-    PTR ( IDENTIFIER ) ptr = hashid_id ( nm ) ;
+	PTR(IDENTIFIER)ptr = hashid_id(nm);
-    if ( IS_NULL_id ( id ) ) {
+	if (IS_NULL_id(id)) {
-	/* Find keyword type */
+		/* Find keyword type */
-	unsigned tag = id_keyword_tag ;
+		unsigned tag = id_keyword_tag;
-	if ( key >= FIRST_ISO_KEYWORD && key <= LAST_ISO_KEYWORD ) {
+		if (key >= FIRST_ISO_KEYWORD && key <= LAST_ISO_KEYWORD) {
-	    tag = id_iso_keyword_tag ;
+			tag = id_iso_keyword_tag;
-	} else if ( key >= FIRST_SYMBOL && key <= LAST_SYMBOL ) {
+		} else if (key >= FIRST_SYMBOL && key <= LAST_SYMBOL) {
-	    tag = id_iso_keyword_tag ;
+			tag = id_iso_keyword_tag;
-	} else if ( key == lex_unknown ) {
+		} else if (key == lex_unknown) {
-	    tag = id_reserved_tag ;
+			tag = id_reserved_tag;
-	}
+		}
-	/* Create keyword identifier */
+		/* Create keyword identifier */
-	MAKE_id_keyword_etc ( tag, nm, dspec_none, NULL_nspace, crt_loc, id ) ;
+		MAKE_id_keyword_etc(tag, nm, dspec_none, NULL_nspace, crt_loc,
+				    id);
-	COPY_ulong ( id_no ( id ), ( unsigned long ) key ) ;
+		COPY_ulong(id_no(id), (unsigned long)key);
-    }
+	}
-    COPY_id ( hashid_cache ( nm ), NULL_id ) ;
+	COPY_id(hashid_cache(nm), NULL_id);
+	if (do_keyword) {
-    if ( do_keyword ) dump_declare ( id, &crt_loc, 1 ) ;
+		dump_declare(id, &crt_loc, 1);
+	}
-    /* Add keyword to identifier meanings */
+	/* Add keyword to identifier meanings */
-    for ( ; ; ) {
+	for (;;) {
-	IDENTIFIER pid = DEREF_id ( ptr ) ;
+		IDENTIFIER pid = DEREF_id(ptr);
-	switch ( TAG_id ( pid ) ) {
+		switch (TAG_id(pid)) {
-	    case id_dummy_tag :
+		case id_dummy_tag:
-	    case id_keyword_tag :
+		case id_keyword_tag:
-	    case id_iso_keyword_tag :
+		case id_iso_keyword_tag:
-	    case id_reserved_tag : {
+		case id_reserved_tag:
-		COPY_id ( id_alias ( id ), pid ) ;
+			COPY_id(id_alias(id), pid);
-		COPY_id ( ptr, id ) ;
+			COPY_id(ptr, id);
-		return ( id ) ;
+			return(id);
-	    }
-	}
+		}
-	ptr = id_alias ( pid ) ;
+		ptr = id_alias(pid);
-    }
+	}
-    /* NOTREACHED */
+	/* NOTREACHED */
 }
 /*
     INITIALISE KEYWORDS
     This routine initialises the hash table entries for the keywords.
 */
-void init_keywords
-    PROTO_Z ()
-{
-    int key ;
+void
-    /* Set up keyword entries */
+init_keywords(void)
-    for ( key = FIRST_KEYWORD ; key <= LAST_KEYWORD ; key++ ) {
+{
-	int ext = 0 ;
+	int key;
-	string keyword = token_name ( key ) ;
-	unsigned long h = hash ( keyword ) ;
-	if ( keyword [0] == char_less ) ext = 1 ;
-	KEYWORD ( key ) = lookup_name ( keyword, h, ext, key ) ;
-    }
+	/* Set up keyword entries */
+	for (key = FIRST_KEYWORD; key <= LAST_KEYWORD; key++) {
+		int ext = 0;
+		string keyword = token_name(key);
+		unsigned long h = hash(keyword);
+		if (keyword[0] == char_less) {
+			ext = 1;
+		}
+		KEYWORD(key) = lookup_name(keyword, h, ext, key);
+	}
-    /* Bring the C keywords into scope */
+	/* Bring the C keywords into scope */
-    for ( key = FIRST_C_KEYWORD ; key <= LAST_C_KEYWORD ; key++ ) {
+	for (key = FIRST_C_KEYWORD; key <= LAST_C_KEYWORD; key++) {
-	HASHID nm = KEYWORD ( key ) ;
+		HASHID nm = KEYWORD(key);
-	IGNORE make_keyword ( nm, key, NULL_id ) ;
+		IGNORE make_keyword(nm, key, NULL_id);
-    }
+	}
-    /* Bring the C++ keywords into scope */
+	/* Bring the C++ keywords into scope */
-    for ( key = FIRST_CPP_KEYWORD ; key <= LAST_CPP_KEYWORD ; key++ ) {
+	for (key = FIRST_CPP_KEYWORD; key <= LAST_CPP_KEYWORD; key++) {
-	HASHID nm = KEYWORD ( key ) ;
+		HASHID nm = KEYWORD(key);
 #if LANGUAGE_CPP
-	IGNORE make_keyword ( nm, key, NULL_id ) ;
+		IGNORE make_keyword(nm, key, NULL_id);
 #else
-	if ( key != lex_wchar_Ht ) {
+		if (key != lex_wchar_Ht) {
-	    IGNORE make_keyword ( nm, lex_unknown, NULL_id ) ;
+			IGNORE make_keyword(nm, lex_unknown, NULL_id);
-	}
+		}
 #endif
-    }
-    /* Bring the ISO alternative keywords into scope */
-    for ( key = FIRST_ISO_KEYWORD ; key <= LAST_ISO_KEYWORD ; key++ ) {
-	HASHID nm = KEYWORD ( key ) ;
-	if ( allow_iso_keywords ) {
-	    IGNORE make_keyword ( nm, key, NULL_id ) ;
-	} else {
-	    IGNORE make_keyword ( nm, lex_unknown, NULL_id ) ;
+	}
+	/* Bring the ISO alternative keywords into scope */
+	for (key = FIRST_ISO_KEYWORD; key <= LAST_ISO_KEYWORD; key++) {
+		HASHID nm = KEYWORD(key);
+		if (allow_iso_keywords) {
+			IGNORE make_keyword(nm, key, NULL_id);
+		} else {
+			IGNORE make_keyword(nm, lex_unknown, NULL_id);
-    }
+		}
+	}
-    /* Find underlying dummy identifier for 'operator' */
+	/* Find underlying dummy identifier for 'operator' */
-    underlying_op = DEREF_id ( hashid_id ( KEYWORD ( lex_operator ) ) ) ;
+	underlying_op = DEREF_id(hashid_id(KEYWORD(lex_operator)));
-    underlying_op = underlying_id ( underlying_op ) ;
+	underlying_op = underlying_id(underlying_op);
-    return ;
+	return;
+}
 /*
     ADJUST A CHARACTER FOR TRIGRAPHS
     This routine is called after a question mark has been read from the
     input file to allow for trigraphs.  It returns the trigraph replacement
     character or '?' if the following characters do not form a trigraph.
 */
-static int adjust_trigraph
+static int
-    PROTO_Z ()
+adjust_trigraph(void)
+{
-    if ( allow_trigraphs ) {
+	if (allow_trigraphs) {
-	int c = next_char () ;
+		int c = next_char();
-	if ( c == char_end ) c = refill_char () ;
-	if ( c == char_question ) {
+		if (c == char_end) {
-	    int d ;
-	    c = next_char () ;
+			c = refill_char();
-	    if ( c == char_end ) c = refill_char () ;
-	    switch ( c ) {
-		case char_close_round : {
-		    /* Map '\?\?)' to ']' */
-		    d = char_close_square ;
-		    break ;
-		}
-		case char_equal : {
-		    /* Map '\?\?=' to '#' */
-		    d = char_hash ;
-		    break ;
-		}
-		case char_exclaim : {
-		    /* Map '\?\?!' to '|' */
-		    d = char_bar ;
-		    break ;
-		}
-		case char_greater : {
-		    /* Map '\?\?>' to '}' */
-		    d = char_close_brace ;
-		    break ;
+		}
+		if (c == char_question) {
+			int d;
+			c = next_char();
+			if (c == char_end) {
+				c = refill_char();
+			}
+			switch (c) {
+			case char_close_round:
+				/* Map '\?\?)' to ']' */
+				d = char_close_square;
+				break;
+			case char_equal:
+				/* Map '\?\?=' to '#' */
+				d = char_hash;
+				break;
+			case char_exclaim:
+				/* Map '\?\?!' to '|' */
+				d = char_bar;
+				break;
+			case char_greater:
+				/* Map '\?\?>' to '}' */
+				d = char_close_brace;
+				break;
-		case char_less : {
+			case char_less:
-		    /* Map '\?\?<' to '{' */
+				/* Map '\?\?<' to '{' */
-		    d = char_open_brace ;
+				d = char_open_brace;
+				break;
+			case char_minus:
+				/* Map '\?\?-' to '~' */
+				d = char_tilde;
+				break;
+			case char_open_round:
+				/* Map '\?\?(' to '[' */
+				d = char_open_square;
+				break;
+			case char_single_quote:
+				/* Map '\?\?\'' to '^' */
+				d = char_circum;
+				break;
+			case char_slash:
+				/* Map '\?\?/' to '\\' */
+				d = char_backslash;
-		    break ;
+				break;
+			default:
+				/* Not a trigraph */
+				unread_char(c);
+				unread_char(char_question);
+				return(char_question);
+			}
+			update_column();
+			report(crt_loc, ERR_lex_trigraph_replace(c, d));
+			return(d);
+		} else {
+			/* Not a trigraph */
+			unread_char(c);
+		}
-		case char_minus : {
-		    /* Map '\?\?-' to '~' */
-		    d = char_tilde ;
-		    break ;
-		}
-		case char_open_round : {
-		    /* Map '\?\?(' to '[' */
-		    d = char_open_square ;
-		    break ;
-		}
-		case char_single_quote : {
-		    /* Map '\?\?\'' to '^' */
-		    d = char_circum ;
-		    break ;
-		}
-		case char_slash : {
-		    /* Map '\?\?/' to '\\' */
-		    d = char_backslash ;
-		    break ;
-		}
-		default : {
-		    /* Not a trigraph */
-		    unread_char ( c ) ;
-		    unread_char ( char_question ) ;
-		    return ( char_question ) ;
-		}
-	    }
-	    update_column () ;
-	    report ( crt_loc, ERR_lex_trigraph_replace ( c, d ) ) ;
-	    return ( d ) ;
-	} else {
-	    /* Not a trigraph */
-	    unread_char ( c ) ;
+	}
-    }
-    return ( char_question ) ;
+	return(char_question);
+}
 /*
     READ A NEWLINE CHARACTER
     This routine is called after each carriage return character, checking
     for a following newline character.
 */
-static int read_newline
+static int
-    PROTO_Z ()
+read_newline(void)
+{
-    if ( allow_dos_newline ) {
+	if (allow_dos_newline) {
-	int c = next_char () ;
+		int c = next_char();
-	if ( c == char_end ) c = refill_char () ;
+		if (c == char_end) {
+			c = refill_char();
+		}
-	if ( c == char_newline ) return ( c ) ;
+		if (c == char_newline) {
+			return(c);
+		}
-	unread_char ( c ) ;
+		unread_char(c);
-    }
+	}
-    return ( char_return ) ;
+	return(char_return);
+}
 /*
     READ AN END OF FILE CHARACTER
     This routine is called after each terminate character, checking for
     a following end of file character.
 */
-static int read_eof
+static int
-    PROTO_Z ()
+read_eof(void)
+{
-    if ( allow_dos_newline ) {
+	if (allow_dos_newline) {
-	int c = next_char () ;
+		int c = next_char();
-	if ( c == char_end ) c = refill_char () ;
+		if (c == char_end) {
+			c = refill_char();
+		}
-	if ( c == char_eof ) return ( c ) ;
+		if (c == char_eof) {
+			return(c);
+		}
-	unread_char ( c ) ;
+		unread_char(c);
-    }
+	}
-    return ( char_sub ) ;
+	return(char_sub);
+}
 /*
     READ THE NEXT CHARACTER ALLOWING FOR TRIGRAPHS ETC.
     This routine reads the next character from the input file, adjusting
     it as necessary for trigraphs and escaped newlines.  This routine
     corresponds to phases 1 and 2 of the phases of translation.
 */
-static int read_char
+static int
-    PROTO_Z ()
+read_char(void)
+{
-    for ( ; ; ) {
+	for (;;) {
-	int c = next_char () ;
+		int c = next_char();
-	if ( c == char_end ) c = refill_char () ;
+		if (c == char_end) {
+			c = refill_char();
+		}
-	if ( c == char_question ) c = adjust_trigraph () ;
+		if (c == char_question) {
+			c = adjust_trigraph();
+		}
-	if ( c != char_backslash ) {
+		if (c != char_backslash) {
-	    /* Not an escaped newline */
+			/* Not an escaped newline */
-	    return ( c ) ;
+			return(c);
-	}
+		}
-	c = next_char () ;
+		c = next_char();
-	if ( c == char_end ) c = refill_char () ;
+		if (c == char_end) {
+			c = refill_char();
+		}
-	if ( c == char_return ) c = read_newline () ;
+		if (c == char_return) {
+			c = read_newline();
+		}
-	if ( c != char_newline ) {
+		if (c != char_newline) {
-	    /* Not an escaped newline */
+			/* Not an escaped newline */
-	    unread_char ( c ) ;
+			unread_char(c);
-	    return ( char_backslash ) ;
+			return(char_backslash);
+		}
+		crt_loc.line++;
+		crt_loc.column = 0;
+		input_crt = input_posn;
+	}
-	crt_loc.line++ ;
-	crt_loc.column = 0 ;
-	input_crt = input_posn ;
-    }
-    /* NOTREACHED */
+	/* NOTREACHED */
+}
 /*
     CHARACTER LOOK-UP TABLE
 #define NLINE_M			0x40
 #define LEGAL_M			0x80
 #define ILLEG			0x00
 #define LEGAL			LEGAL_M
-#define SPACE			( SPACE_M | LEGAL_M )
+#define SPACE			(SPACE_M | LEGAL_M)
-#define ALPHA			( ALPHA_M | ALNUM_M | PPDIG_M | LEGAL_M )
+#define ALPHA			(ALPHA_M | ALNUM_M | PPDIG_M | LEGAL_M)
-#define DIGIT			( DIGIT_M | ALNUM_M | PPDIG_M | LEGAL_M )
+#define DIGIT			(DIGIT_M | ALNUM_M | PPDIG_M | LEGAL_M)
-#define SYMBL			( SYMBL_M | LEGAL_M )
+#define SYMBL			(SYMBL_M | LEGAL_M)
-#define POINT			( PPDIG_M | SYMBL_M | LEGAL_M )
+#define POINT			(PPDIG_M | SYMBL_M | LEGAL_M)
-#define NLINE			( NLINE_M | LEGAL_M )
+#define NLINE			(NLINE_M | LEGAL_M)
-#define main_characters		( characters + 1 )
-#define lookup_char( C )	( ( int ) main_characters [C] )
-#define is_white( T )		( ( T ) & SPACE_M )
-#define is_alpha( T )		( ( T ) & ALPHA_M )
-#define is_digit( T )		( ( T ) & DIGIT_M )
-#define is_alphanum( T )	( ( T ) & ALNUM_M )
-#define is_ppdigit( T )		( ( T ) & PPDIG_M )
-#define is_symbol( T )		( ( T ) & SYMBL_M )
-#define is_newline( T )		( ( T ) & NLINE_M )
-#define is_legal( T )		( ( T ) & LEGAL_M )
+#define main_characters		(characters + 1)
+#define lookup_char(C)		((int)main_characters[C])
+#define is_white(T)		((T) & SPACE_M)
+#define is_alpha(T)		((T) & ALPHA_M)
+#define is_digit(T)		((T) & DIGIT_M)
+#define is_alphanum(T)		((T) & ALNUM_M)
+#define is_ppdigit(T)		((T) & PPDIG_M)
+#define is_symbol(T)		((T) & SYMBL_M)
+#define is_newline(T)		((T) & NLINE_M)
+#define is_legal(T)		((T) & LEGAL_M)
-static unsigned char characters [ NO_CHAR + 2 ] = {
+static unsigned char characters[NO_CHAR + 2] = {
-    LEGAL,			/* EOF */
+	LEGAL,			/* EOF */
-#define CHAR_DATA( A, B, C, D )	( A ),
+#define CHAR_DATA(A, B, C, D)	(A),
 #include "char.h"
 #undef CHAR_DATA
-    ILLEG			/* dummy */
+	ILLEG			/* dummy */
-} ;
+};
-static unsigned char *copy_characters = main_characters ;
+static unsigned char *copy_characters = main_characters;
 /*
     SET A CHARACTER LOOK-UP
     the underlying value for character b.  As a special case, setting
     the look-up for a carriage return to that for newline enables
     DOS-like rules on newline and end of file characters.
 */
-void set_char_lookup
+void
-    PROTO_N ( ( a, b ) )
-    PROTO_T ( int a X int b )
+set_char_lookup(int a, int b)
+{
-    if ( a >= 0 && a < NO_CHAR && b >= 0 && b < NO_CHAR ) {
+	if (a >= 0 && a < NO_CHAR && b >= 0 && b < NO_CHAR) {
-	unsigned char t = copy_characters [b] ;
+		unsigned char t = copy_characters[b];
-	if ( a == char_return ) {
+		if (a == char_return) {
-	    if ( b == char_newline ) {
+			if (b == char_newline) {
-		/* Set DOS-like newline rules */
+				/* Set DOS-like newline rules */
-		allow_dos_newline = 1 ;
+				allow_dos_newline = 1;
-		return ;
+				return;
-	    }
+			}
-	    if ( b == char_return ) {
+			if (b == char_return) {
-		/* Unset DOS-like newline rules */
+				/* Unset DOS-like newline rules */
-		allow_dos_newline = 0 ;
+				allow_dos_newline = 0;
-	    }
+			}
+		}
+		main_characters[a] = t;
+	}
-	main_characters [a] = t ;
-    }
-    return ;
+	return;
+}
 /*
     SET A NUMBER OF CHARACTER LOOK-UPS
     This routine sets the character look-ups for all the elements of the
     string or character literal expression a to be equal to that for the
     character literal expression b.  If b is the null expression then
     the look-up is set to be an illegal character.
 */
-void set_character
+void
-    PROTO_N ( ( a, b ) )
-    PROTO_T ( EXP a X EXP b )
+set_character(EXP a, EXP b)
+{
-    int c = get_char_value ( b ) ;
+	int c = get_char_value(b);
-    if ( IS_exp_string_lit ( a ) ) {
+	if (IS_exp_string_lit(a)) {
-	STRING s = DEREF_str ( exp_string_lit_str ( a ) ) ;
+		STRING s = DEREF_str(exp_string_lit_str(a));
-	unsigned long n = DEREF_ulong ( str_simple_len ( s ) ) ;
+		unsigned long n = DEREF_ulong(str_simple_len(s));
-	string t = DEREF_string ( str_simple_text ( s ) ) ;
+		string t = DEREF_string(str_simple_text(s));
-	unsigned kind = DEREF_unsigned ( str_simple_kind ( s ) ) ;
+		unsigned kind = DEREF_unsigned(str_simple_kind(s));
-	if ( kind & STRING_MULTI ) {
+		if (kind & STRING_MULTI) {
-	    while ( n ) {
+			while (n) {
-		int ch = CHAR_SIMPLE ;
+				int ch = CHAR_SIMPLE;
-		unsigned long d = get_multi_char ( t, &ch ) ;
+				unsigned long d = get_multi_char(t, &ch);
-		if ( d < ( unsigned long ) NO_CHAR ) {
+				if (d < (unsigned long)NO_CHAR) {
-		    set_char_lookup ( ( int ) d, c ) ;
+					set_char_lookup((int)d, c);
-		}
+				}
-		t += MULTI_WIDTH ;
+				t += MULTI_WIDTH;
+				n--;
+			}
+		} else {
+			while (n) {
+				int d = (int)*t;
+				set_char_lookup(d, c);
+				t++;
-		n-- ;
+				n--;
-	    }
+			}
+		}
 	} else {
-	    while ( n ) {
+		int d = get_char_value(a);
-		int d = ( int ) *t ;
+		if (d != char_illegal) {
-		set_char_lookup ( d, c ) ;
+			set_char_lookup(d, c);
-		t++ ;
-		n-- ;
-	    }
+		}
+	}
-    } else {
-	int d = get_char_value ( a ) ;
-	if ( d != char_illegal ) set_char_lookup ( d, c ) ;
-    }
-    return ;
+	return;
+}
 /*
     CHECK FOR WHITE SPACE CHARACTERS
     This routine checks whether the character a represents a white space.
     The newline character constitutes a special case.
 */
-int is_white_char
+int
-    PROTO_N ( ( a ) )
-    PROTO_T ( unsigned long a )
+is_white_char(unsigned long a)
+{
-    int t ;
+	int t;
-    if ( a >= NO_CHAR ) return ( 0 ) ;
+	if (a >= NO_CHAR) {
+		return(0);
+	}
-    t = lookup_char ( a ) ;
+	t = lookup_char(a);
-    return ( is_white ( t ) || is_newline ( t ) ) ;
+	return(is_white(t) || is_newline(t));
+}
 /*
     CHECK FOR ALPHABETIC CHARACTERS
     This routine checks whether the character a represents an alphabetic
     character.
 */
-int is_alpha_char
+int
-    PROTO_N ( ( a ) )
-    PROTO_T ( unsigned long a )
+is_alpha_char(unsigned long a)
+{
-    if ( a >= NO_CHAR ) return ( 0 ) ;
+	if (a >= NO_CHAR) {
+		return(0);
+	}
-    return ( is_alpha ( lookup_char ( a ) ) ) ;
+	return(is_alpha(lookup_char(a)));
+}
 /*
     CHECK FOR LEGAL CHARACTERS
     This routine checks whether the character a represents a legal character.
 */
-int is_legal_char
+int
-    PROTO_N ( ( a ) )
-    PROTO_T ( unsigned long a )
+is_legal_char(unsigned long a)
+{
-    if ( a >= NO_CHAR ) return ( 0 ) ;
+	if (a >= NO_CHAR) {
+		return(0);
+	}
-    return ( is_legal ( lookup_char ( a ) ) ) ;
+	return(is_legal(lookup_char(a)));
+}
 /*
     PEEK AHEAD ONE CHARACTER
     newline).  If so the current character is advanced one, otherwise it
     is left unchanged.  legal is set to false if the next character is
     not legal.
 */
-int peek_char
+int
-    PROTO_N ( ( a, legal ) )
-    PROTO_T ( int a X int *legal )
+peek_char(int a, int *legal)
+{
-    int c = read_char () ;
+	int c = read_char();
-    ASSERT ( a != char_newline ) ;
+	ASSERT(a != char_newline);
-    if ( c == a ) return ( 1 ) ;
+	if (c == a) {
+		return(1);
+	}
-    *legal = is_legal_char ( ( unsigned long ) c ) ;
+	*legal = is_legal_char((unsigned long)c);
-    unread_char ( c ) ;
+	unread_char(c);
-    return ( 0 ) ;
+	return(0);
+}
 /*
     TOKEN BUFFER
     This buffer is used by read_token to hold the values of identifiers,
     numbers and strings.
 */
-BUFFER token_buff = NULL_buff ;
+BUFFER token_buff = NULL_buff;
 /*
     TOKEN IDENTIFICATION MACROS
     These macros are used to identify the start or end of certain tokens
     such as comments and strings.
 */
-#define START_COMMENT( A )\
+#define START_COMMENT(A)	((A) == char_asterix)
-	( ( A ) == char_asterix )
-#define END_COMMENT( A, B )\
-	( ( A ) == char_asterix && ( B ) == char_slash )
+#define END_COMMENT(A, B)	((A) == char_asterix && (B) == char_slash)
-#define START_CPP_COMMENT( A )\
-	( ( A ) == char_slash && allow_cpp_comments )
+#define START_CPP_COMMENT(A)	((A) == char_slash && allow_cpp_comments)
-#define END_CPP_COMMENT( A )\
+#define END_CPP_COMMENT(A)	((A) == char_newline)
-	( ( A ) == char_newline )
-#define START_STRING( A )\
-	( ( A ) == char_quote || ( A ) == char_single_quote )
+#define START_STRING(A)		((A) == char_quote || (A) == char_single_quote)
-#define END_STRING( A, Q )\
+#define END_STRING(A, Q)	((A) == (Q))
-	( ( A ) == ( Q ) )
 /*
     END OF FILE FLAG
     Each source file should end in a newline character, which is not
     preceded by a backspace.  This flag is used to indicate whether the
     end of the present file has the correct form.
 */
-static int good_eof = 0 ;
+static int good_eof = 0;
 /*
     SKIP A STRING
     This routine skips a string or character literal.  It is entered after
     the initial quote, q, has been read.  Escape sequences are always
     allowed.  The routine returns lex_string_Hlit if the string terminates
     correctly and lex_eof otherwise.
 */
-static int skip_string
+static int
-    PROTO_N ( ( q ) )
-    PROTO_T ( int q )
+skip_string(int q)
 {
-    int e = q ;
+	int e = q;
-    LOCATION loc ;
+	LOCATION loc;
-    unsigned nl = 0 ;
+	unsigned nl = 0;
-    int escaped = 0 ;
+	int escaped = 0;
-    int have_char = 0 ;
+	int have_char = 0;
-    int allow_nl = allow_newline_strings ;
+	int allow_nl = allow_newline_strings;
-    if ( e == char_single_quote || in_preproc_dir == 1 ) allow_nl = 0 ;
+	if (e == char_single_quote || in_preproc_dir == 1) {
-    update_column () ;
-    loc = crt_loc ;
-    /* Scan to end of string */
-    for ( ; ; ) {
-	int c = read_char () ;
-	if ( END_STRING ( c, e ) && !escaped ) {
-	    if ( e == char_single_quote && !have_char ) {
-		update_column () ;
+		allow_nl = 0;
-		report ( crt_loc, ERR_lex_ccon_empty () ) ;
-	    }
-	    if ( nl ) report ( loc, ERR_lex_string_nl ( nl, nl ) ) ;
-	    return ( lex_string_Hlit ) ;
+	}
+	update_column();
+	loc = crt_loc;
+	/* Scan to end of string */
+	for (;;) {
+		int c = read_char();
+		if (END_STRING(c, e) && !escaped) {
+			if (e == char_single_quote && !have_char) {
+				update_column();
+				report(crt_loc, ERR_lex_ccon_empty());
+			}
+			if (nl) {
+				report(loc, ERR_lex_string_nl(nl, nl));
+			}
+			return(lex_string_Hlit);
+		}
-	if ( c == char_newline ) {
+		if (c == char_newline) {
-	    if ( allow_nl ) {
+			if (allow_nl) {
-		/* Report newlines but continue */
+				/* Report newlines but continue */
-		crt_loc.line++ ;
+				crt_loc.line++;
-		crt_loc.column = 0 ;
+				crt_loc.column = 0;
-		input_crt = input_posn ;
+				input_crt = input_posn;
-		nl++ ;
+				nl++;
-	    } else {
+			} else {
-		unread_char ( c ) ;
+				unread_char(c);
-		update_column () ;
+				update_column();
-		report ( crt_loc, ERR_lex_string_pp_nl () ) ;
+				report(crt_loc, ERR_lex_string_pp_nl());
-		break ;
+				break;
-	    }
+			}
-	} else if ( c == char_eof ) {
+		} else if (c == char_eof) {
-	    report ( loc, ERR_lex_phases_str_eof () ) ;
+			report(loc, ERR_lex_phases_str_eof());
-	    good_eof = 1 ;
+			good_eof = 1;
-	    nl = 0 ;
+			nl = 0;
-	    break ;
+			break;
+		}
+		if (escaped) {
+			escaped = 0;
+		} else {
+			if (c == char_backslash) {
+				escaped = 1;
+			}
+		}
+		if (!escaped) {
+			have_char = 1;
+		}
+	}
-	if ( escaped ) {
+	if (nl) {
-	    escaped = 0 ;
+		/* Report newlines in string */
+		report(loc, ERR_lex_string_nl(nl, nl));
 	} else {
-	    if ( c == char_backslash ) escaped = 1 ;
+		/* Don't bother with error recovery */
+		/* EMPTY */
+	}
-	if ( !escaped ) have_char = 1 ;
-    }
-    if ( nl ) {
-	/* Report newlines in string */
-	report ( loc, ERR_lex_string_nl ( nl, nl ) ) ;
-    } else {
-	/* Don't bother with error recovery */
-	/* EMPTY */
-    }
-    return ( lex_eof ) ;
+	return(lex_eof);
+}
 /*
     READ THE BODY OF A STRING
     indicates whether escape sequences are allowed (they are not in
     header names for example).  The string itself is built up in
     token_buff.  The routine returns lex_string_Hlit if the string
     terminates correctly and lex_eof otherwise.  It also sets
     token_buff.posn to point to the end of the string.
 */
-int read_string
+int
-    PROTO_N ( ( q, esc ) )
-    PROTO_T ( int q X int esc )
+read_string(int q, int esc)
+{
-    int c ;
+	int c;
-    int e = q ;
+	int e = q;
-    LOCATION loc ;
+	LOCATION loc;
-    long posn = -1 ;
+	long posn = -1;
-    int escaped = 0 ;
+	int escaped = 0;
-    unsigned nl = 0 ;
+	unsigned nl = 0;
-    int have_char = 0 ;
+	int have_char = 0;
-    string s = token_buff.start ;
+	string s = token_buff.start;
-    string se = token_buff.end ;
+	string se = token_buff.end;
-    int allow_nl = allow_newline_strings ;
+	int allow_nl = allow_newline_strings;
-    update_column () ;
+	update_column();
-    if ( e == char_single_quote ) {
+	if (e == char_single_quote) {
-	posn = tell_buffer ( crt_buff_no ) ;
+		posn = tell_buffer(crt_buff_no);
-	allow_nl = 0 ;
+		allow_nl = 0;
-    } else if ( in_preproc_dir == 1 ) {
+	} else if (in_preproc_dir == 1) {
-	allow_nl = 0 ;
+		allow_nl = 0;
-    }
-    loc = crt_loc ;
-    /* Scan the string */
-    for ( ; ; ) {
-	c = read_char () ;
-	if ( END_STRING ( c, e ) && !escaped ) {
-	    if ( e == char_single_quote && !have_char ) {
-		update_column () ;
-		report ( crt_loc, ERR_lex_ccon_empty () ) ;
-	    }
-	    if ( nl ) report ( loc, ERR_lex_string_nl ( nl, nl ) ) ;
-	    token_buff.posn = s ;
-	    *s = 0 ;
-	    return ( lex_string_Hlit ) ;
+	}
+	loc = crt_loc;
+	/* Scan the string */
+	for (;;) {
+		c = read_char();
+		if (END_STRING(c, e) && !escaped) {
+			if (e == char_single_quote && !have_char) {
+				update_column();
+				report(crt_loc, ERR_lex_ccon_empty());
+			}
+			if (nl) {
+				report(loc, ERR_lex_string_nl(nl, nl));
+			}
+			token_buff.posn = s;
+			*s = 0;
+			return(lex_string_Hlit);
+		}
-	if ( c == char_newline ) {
+		if (c == char_newline) {
-	    if ( allow_nl ) {
+			if (allow_nl) {
-		/* Report newlines but continue */
+				/* Report newlines but continue */
-		crt_loc.line++ ;
+				crt_loc.line++;
-		crt_loc.column = 0 ;
+				crt_loc.column = 0;
-		input_crt = input_posn ;
+				input_crt = input_posn;
-		nl++ ;
+				nl++;
-	    } else {
+			} else {
-		unread_char ( c ) ;
+				unread_char(c);
-		update_column () ;
+				update_column();
-		if ( e == char_greater ) {
+				if (e == char_greater) {
-		    /* Header name */
+					/* Header name */
+					report(crt_loc,
-		    report ( crt_loc, ERR_cpp_include_incompl () ) ;
+					       ERR_cpp_include_incompl());
-		} else {
+				} else {
-		    report ( crt_loc, ERR_lex_string_pp_nl () ) ;
+					report(crt_loc, ERR_lex_string_pp_nl());
+				}
+				break;
+			}
+		} else if (c == char_eof) {
+			report(loc, ERR_lex_phases_str_eof());
+			good_eof = 1;
+			nl = 0;
+			break;
+		}
+		*s = (character)c;
+		if (++s == se) {
+			s = extend_buffer(&token_buff, s);
+			se = token_buff.end;
+		}
+		if (escaped) {
-		break ;
+			escaped = 0;
-	    }
+		} else {
-	} else if ( c == char_eof ) {
+			if (c == char_backslash) {
-	    report ( loc, ERR_lex_phases_str_eof () ) ;
-	    good_eof = 1 ;
+				escaped = esc;
-	    nl = 0 ;
-	    break ;
-	}
+			}
-	*s = ( character ) c ;
-	if ( ++s == se ) {
-	    s = extend_buffer ( &token_buff, s ) ;
-	    se = token_buff.end ;
-	}
+		}
-	if ( escaped ) {
+		if (!escaped)have_char = 1;
-	    escaped = 0 ;
-	} else {
-	    if ( c == char_backslash ) escaped = esc ;
+	}
-	if ( !escaped ) have_char = 1 ;
-    }
-    if ( nl ) {
+	if (nl) {
-	/* Report newlines in string */
+		/* Report newlines in string */
-	report ( loc, ERR_lex_string_nl ( nl, nl ) ) ;
+		report(loc, ERR_lex_string_nl(nl, nl));
-    } else {
+	} else {
-	/* Error recovery */
+		/* Error recovery */
-	if ( e == char_single_quote && have_char ) {
+		if (e == char_single_quote && have_char) {
-	    seek_buffer ( crt_buff_no, posn, 1 ) ;
+			seek_buffer(crt_buff_no, posn, 1);
-	    crt_loc = loc ;
+			crt_loc = loc;
-	    s = token_buff.start ;
+			s = token_buff.start;
-	    c = read_char () ;
+			c = read_char();
-	    *( s++ ) = ( character ) c ;
+			*(s++) = (character)c;
-	    if ( c == char_backslash && esc ) {
+			if (c == char_backslash && esc) {
-		c = read_char () ;
+				c = read_char();
-		*( s++ ) = ( character ) c ;
+				*(s++) = (character)c;
-	    }
+			}
+		}
+	}
-    }
-    token_buff.posn = s ;
+	token_buff.posn = s;
-    *s = 0 ;
+	*s = 0;
-    return ( lex_eof ) ;
+	return(lex_eof);
+}
 /*
     SKIP A C STYLE COMMENT
     This routine skips a C style comment, returning lex_ignore_token if
     the comment is terminated correctly and lex_eof otherwise.  It is
     entered after the first two characters comprising the comment start
     have been read.  If keep is true then the comment text is built up
     in token_buff, otherwise it is discarded.
 */
-static int skip_comment
+static int
-    PROTO_N ( ( keep ) )
-    PROTO_T ( int keep )
+skip_comment(int keep)
 {
-    int c = 0 ;
+	int c = 0;
-    int lastc ;
+	int lastc;
-    string s, se ;
+	string s, se;
-    LOCATION loc ;
+	LOCATION loc;
-    update_column () ;
+	update_column();
-    loc = crt_loc ;
+	loc = crt_loc;
-    if ( keep ) {
+	if (keep) {
-	s = token_buff.start ;
+		s = token_buff.start;
-	se = token_buff.end ;
+		se = token_buff.end;
-    } else {
+	} else {
-	s = NULL ;
+		s = NULL;
-	se = NULL ;
+		se = NULL;
-    }
+	}
-    do {
+	do {
-	lastc = c ;
+		lastc = c;
-	read_label : {
+read_label:
-	    /* Inlined version of read_char */
+		/* Inlined version of read_char */
-	    c = next_char () ;
+		c = next_char();
-	    if ( c == char_end ) c = refill_char () ;
+		if (c == char_end) {
+			c = refill_char();
+		}
-	    if ( c == char_question ) c = adjust_trigraph () ;
+		if (c == char_question) {
+			c = adjust_trigraph();
+		}
-	    if ( c == char_backslash ) {
+		if (c == char_backslash) {
-		c = next_char () ;
+			c = next_char();
-		if ( c == char_end ) c = refill_char () ;
+			if (c == char_end) {
+				c = refill_char();
+			}
-		if ( c == char_return ) c = read_newline () ;
+			if (c == char_return) {
+				c = read_newline();
+			}
-		if ( c == char_newline ) {
+			if (c == char_newline) {
-		    /* Allow for escaped newlines */
+				/* Allow for escaped newlines */
-		    crt_loc.line++ ;
+				crt_loc.line++;
-		    crt_loc.column = 0 ;
+				crt_loc.column = 0;
-		    input_crt = input_posn ;
+				input_crt = input_posn;
-		    goto read_label ;
+				goto read_label;
-		}
+			}
-		unread_char ( c ) ;
+			unread_char(c);
-		c = char_backslash ;
+			c = char_backslash;
-	    } else if ( c == char_newline ) {
+		} else if (c == char_newline) {
-		/* New line characters */
+			/* New line characters */
-		crt_loc.line++ ;
+			crt_loc.line++;
-		crt_loc.column = 0 ;
+			crt_loc.column = 0;
-		input_crt = input_posn ;
+			input_crt = input_posn;
-		crt_line_changed = 1 ;
+			crt_line_changed = 1;
-		crt_spaces = 0 ;
+			crt_spaces = 0;
-	    } else if ( c == char_eof ) {
+		} else if (c == char_eof) {
-		/* End of file characters */
+			/* End of file characters */
-		report ( loc, ERR_lex_phases_comm_eof () ) ;
+			report(loc, ERR_lex_phases_comm_eof());
-		good_eof = 1 ;
+			good_eof = 1;
-		if ( s ) {
+			if (s) {
-		    token_buff.posn = s ;
+				token_buff.posn = s;
-		    *s = 0 ;
+				*s = 0;
-		}
+			}
-		return ( lex_eof ) ;
+			return(lex_eof);
-	    } else if ( c == char_asterix && lastc == char_slash ) {
+		} else if (c == char_asterix && lastc == char_slash) {
-		/* Nested comments */
+			/* Nested comments */
-		update_column () ;
+			update_column();
-		report ( crt_loc, ERR_lex_comment_nest () ) ;
+			report(crt_loc, ERR_lex_comment_nest());
-	    }
+		}
-	    if ( s ) {
+		if (s) {
-		*s = ( character ) c ;
+			*s = (character)c;
-		if ( ++s == se ) {
+			if (++s == se) {
-		    s = extend_buffer ( &token_buff, s ) ;
+				s = extend_buffer(&token_buff, s);
-		    se = token_buff.end ;
+				se = token_buff.end;
+			}
 		}
+	} while (!END_COMMENT(lastc, c));
+	if (s) {
+		s -= 2;
+		token_buff.posn = s;
-	    }
+		*s = 0;
+	}
-    } while ( !END_COMMENT ( lastc, c ) ) ;
-    if ( s ) {
-	s -= 2 ;
-	token_buff.posn = s ;
-	*s = 0 ;
-    }
-    crt_spaces++ ;
+	crt_spaces++;
-    return ( lex_ignore_token ) ;
+	return(lex_ignore_token);
+}
 /*
     SKIP A C++ STYLE COMMENT
     have been read.  The next token read after the comment will be the
     terminating newline.  If keep is true then the comment text is built
     up in token_buff, otherwise it is discarded.
 */
-static int skip_cpp_comment
+static int
-    PROTO_N ( ( keep ) )
-    PROTO_T ( int keep )
+skip_cpp_comment(int keep)
+{
-    int c ;
+	int c;
-    string s, se ;
+	string s, se;
-    if ( keep ) {
+	if (keep) {
-	s = token_buff.start ;
+		s = token_buff.start;
-	se = token_buff.end ;
+		se = token_buff.end;
-    } else {
+	} else {
-	s = NULL ;
+		s = NULL;
-	se = NULL ;
+		se = NULL;
-    }
+	}
-    do {
+	do {
-	read_label : {
+read_label:
-	    /* Inlined version of read_char */
+		/* Inlined version of read_char */
-	    c = next_char () ;
-	    if ( c == char_end ) c = refill_char () ;
-	    if ( c == char_question ) c = adjust_trigraph () ;
-	    if ( c == char_backslash ) {
-		c = next_char () ;
+		c = next_char();
-		if ( c == char_end ) c = refill_char () ;
-		if ( c == char_return ) c = read_newline () ;
-		if ( c == char_newline ) {
+		if (c == char_end) {
-		    /* Allow for escaped newlines */
-		    crt_loc.line++ ;
-		    crt_loc.column = 0 ;
-		    input_crt = input_posn ;
-		    goto read_label ;
+			c = refill_char();
 		}
-		unread_char ( c ) ;
-		c = char_backslash ;
+		if (c == char_question) {
-	    } else if ( c == char_eof ) {
-		/* End of file characters */
-		update_column () ;
+			c = adjust_trigraph();
-		report ( crt_loc, ERR_lex_phases_comm_eof () ) ;
-		good_eof = 1 ;
-		if ( s ) {
-		    token_buff.posn = s ;
-		    *s = 0 ;
+		}
+		if (c == char_backslash) {
+			c = next_char();
+			if (c == char_end) {
+				c = refill_char();
+			}
+			if (c == char_return) {
+				c = read_newline();
+			}
+			if (c == char_newline) {
+				/* Allow for escaped newlines */
+				crt_loc.line++;
+				crt_loc.column = 0;
+				input_crt = input_posn;
+				goto read_label;
+			}
+			unread_char(c);
+			c = char_backslash;
+		} else if (c == char_eof) {
+			/* End of file characters */
+			update_column();
+			report(crt_loc, ERR_lex_phases_comm_eof());
+			good_eof = 1;
+			if (s) {
+				token_buff.posn = s;
+				*s = 0;
+			}
-		return ( lex_eof ) ;
+			return(lex_eof);
-	    }
+		}
-	    if ( s ) {
+		if (s) {
-		*s = ( character ) c ;
+			*s = (character)c;
-		if ( ++s == se ) {
+			if (++s == se) {
-		    s = extend_buffer ( &token_buff, s ) ;
+				s = extend_buffer(&token_buff, s);
-		    se = token_buff.end ;
+				se = token_buff.end;
+			}
+		}
+	} while (!END_CPP_COMMENT(c));
+	unread_char(c);
+	if (s) {
-	    }
+		s -= 1;
+		token_buff.posn = s;
+		*s = 0;
+	}
-    } while ( !END_CPP_COMMENT ( c ) ) ;
-    unread_char ( c ) ;
-    if ( s ) {
-	s -= 1 ;
-	token_buff.posn = s ;
-	*s = 0 ;
-    }
-    crt_line_changed = 1 ;
+	crt_line_changed = 1;
-    crt_spaces = 0 ;
+	crt_spaces = 0;
-    return ( lex_ignore_token ) ;
+	return(lex_ignore_token);
+}
 /*
     SKIP WHITE-SPACE CHARACTERS
     routine is that all non-empty sequences of white-space characters other
     than newlines are treated as if they were a single space (the C/C++
     specification says that this is implementation-defined).
 */
-unsigned long skip_white
+unsigned long
-    PROTO_N ( ( nl ) )
-    PROTO_T ( int nl )
+skip_white(int nl)
+{
-    int c ;
+	int c;
-    unsigned long sp = 0 ;
+	unsigned long sp = 0;
-    for ( ; ; ) {
+	for (;;) {
-	c = next_char () ;
+		c = next_char();
-	if ( c == char_end ) c = refill_char () ;
+		if (c == char_end) {
+			c = refill_char();
+		}
-	if ( c == char_return ) c = read_newline () ;
+		if (c == char_return) {
+			c = read_newline();
+		}
-	if ( c == char_sub ) c = read_eof () ;
+		if (c == char_sub) {
+			c = read_eof();
+		}
-	if ( c == char_newline ) {
+		if (c == char_newline) {
-	    /* Deal with newline characters */
+			/* Deal with newline characters */
-	    if ( !nl ) break ;
+			if (!nl) {
+				break;
+			}
-	    sp = WHITE_NEWLINE ;
+			sp = WHITE_NEWLINE;
-	    crt_loc.line++ ;
+			crt_loc.line++;
-	    crt_loc.column = 0 ;
+			crt_loc.column = 0;
-	    input_crt = input_posn ;
+			input_crt = input_posn;
-	    crt_line_changed = 1 ;
+			crt_line_changed = 1;
-	    crt_spaces = 0 ;
+			crt_spaces = 0;
-	} else if ( c == char_space ) {
+		} else if (c == char_space) {
-	    /* Deal with simple spaces */
+			/* Deal with simple spaces */
-	    sp |= WHITE_SPACE ;
+			sp |= WHITE_SPACE;
-	    crt_spaces++ ;
+			crt_spaces++;
-	} else if ( c == char_tab ) {
+		} else if (c == char_tab) {
-	    /* Deal with tab characters */
+			/* Deal with tab characters */
-	    unsigned long tab = tab_width ;
+			unsigned long tab = tab_width;
-	    sp |= WHITE_SPACE ;
+			sp |= WHITE_SPACE;
-	    crt_spaces = tab * ( crt_spaces / tab + 1 ) ;
+			crt_spaces = tab *(crt_spaces / tab + 1);
-	} else if ( c == char_eof ) {
+		} else if (c == char_eof) {
-	    /* End of file */
+			/* End of file */
-	    if ( sp == WHITE_NEWLINE ) good_eof = 1 ;
+			if (sp == WHITE_NEWLINE) {
+				good_eof = 1;
+			}
-	    break ;
+			break;
-	} else {
+		} else {
-	    int t ;
+			int t;
 #if FS_EXTENDED_CHAR
-	    if ( IS_EXTENDED ( c ) ) break ;
+			if (IS_EXTENDED(c)) {
+				break;
+			}
 #endif
-	    t = lookup_char ( c ) ;
+			t = lookup_char(c);
-	    if ( is_white ( t ) ) {
+			if (is_white(t)) {
-		/* Deal with other white space characters */
+				/* Deal with other white space characters */
-		sp |= WHITE_SPACE ;
+				sp |= WHITE_SPACE;
-		crt_spaces++ ;
+				crt_spaces++;
-	    } else {
+			} else {
-		if ( c == char_question ) c = adjust_trigraph () ;
+				if (c == char_question)c = adjust_trigraph();
-		if ( c == char_slash ) {
+				if (c == char_slash) {
-		    /* Deal with comments */
+					/* Deal with comments */
-		    int b = read_char () ;
+					int b = read_char();
-		    if ( START_COMMENT ( b ) ) {
+					if (START_COMMENT(b)) {
-			sp |= WHITE_SPACE ;
+						sp |= WHITE_SPACE;
-			b = skip_comment ( 0 ) ;
+						b = skip_comment(0);
-			if ( b == lex_eof ) return ( sp ) ;
+						if (b == lex_eof)  {
+							return(sp);
+						}
-		    } else if ( START_CPP_COMMENT ( b ) ) {
+					} else if (START_CPP_COMMENT(b)) {
-			sp |= WHITE_SPACE ;
+						sp |= WHITE_SPACE;
-			b = skip_cpp_comment ( 0 ) ;
+						b = skip_cpp_comment(0);
-			if ( b == lex_eof ) return ( sp ) ;
+						if (b == lex_eof) {
+							return(sp);
+						}
+						if (!nl) {
-			if ( !nl ) return ( sp ) ;
+							return(sp);
+						}
-		    } else {
+					} else {
-			unread_char ( b ) ;
+						unread_char(b);
-			break ;
+						break;
-		    }
+					}
-		} else if ( c == char_backslash ) {
+				} else if (c == char_backslash) {
-		    /* Deal with escaped newlines */
+					/* Deal with escaped newlines */
-		    int b = next_char () ;
+					int b = next_char();
-		    if ( b == char_end ) b = refill_char () ;
+					if (b == char_end) {
+						b = refill_char();
+					}
-		    if ( b == char_return ) b = read_newline () ;
+					if (b == char_return) {
+						b = read_newline();
+					}
-		    if ( b == char_newline ) {
+					if (b == char_newline) {
-			crt_loc.line++ ;
+						crt_loc.line++;
-			crt_loc.column = 0 ;
+						crt_loc.column = 0;
-			input_crt = input_posn ;
+						input_crt = input_posn;
-		    } else {
+					} else {
-			unread_char ( b ) ;
+						unread_char(b);
-			break ;
+						break;
-		    }
+					}
-		    sp |= WHITE_ESC_NEWLINE ;
+					sp |= WHITE_ESC_NEWLINE;
-		} else {
+				} else {
-		    break ;
+					break;
-		}
+				}
-	    }
+			}
-	}
+		}
-    }
+	}
-    unread_char ( c ) ;
+	unread_char(c);
-    return ( sp ) ;
+	return(sp);
 }
 /*
     PATCH UP WHITE-SPACE CHARACTERS
     Calling skip_white ( 1 ) can mess up the parser as regards spotting
     preprocessing directives and valid end of file markers.  This routine
     may be called with the return value of skip_white as an argument to
     patch up the buffer in order to get the parser back into the right
     state.
 */
-void patch_white
+void
-    PROTO_N ( ( sp ) )
-    PROTO_T ( unsigned long sp )
+patch_white(unsigned long sp)
 {
-    if ( sp & WHITE_NEWLINE ) {
+	if (sp & WHITE_NEWLINE) {
-	if ( sp & WHITE_SPACE ) {
+		if (sp & WHITE_SPACE) {
-	    /* Patch in a space after a newline */
+			/* Patch in a space after a newline */
-	    unsigned long n ;
+			unsigned long n;
-	    update_column () ;
+			update_column();
-	    n = crt_loc.column ;
+			n = crt_loc.column;
-	    while ( n ) {
+			while (n) {
-		unread_char ( char_space ) ;
+				unread_char(char_space);
-		if ( input_posn <= input_start ) break ;
+				if (input_posn <= input_start) {
+					break;
+				}
-		n-- ;
+				n--;
-	    }
+			}
-	} else if ( sp & WHITE_ESC_NEWLINE ) {
+		} else if (sp & WHITE_ESC_NEWLINE) {
-	    /* Patch in an escaped newline after a newline */
+			/* Patch in an escaped newline after a newline */
-	    unread_char ( char_backslash ) ;
+			unread_char(char_backslash);
-	    unread_char ( char_newline ) ;
+			unread_char(char_newline);
-	    crt_loc.line-- ;
+			crt_loc.line--;
-	}
+		}
-	/* Patch in a newline */
+		/* Patch in a newline */
-	unread_char ( char_newline ) ;
+		unread_char(char_newline);
-	crt_loc.line-- ;
+		crt_loc.line--;
-	crt_loc.column = 0 ;
+		crt_loc.column = 0;
-	crt_spaces = 0 ;
+		crt_spaces = 0;
-    }
+	}
-    return ;
+	return;
 }
 /*
     SKIP TO END OF LINE
     This routine skips to the end of the current line.  It returns 0 if
     only white-space characters are encountered.  It uses skip_white to
     jump over white-space (including comments).
 */
-int skip_to_end
+int
-    PROTO_Z ()
+skip_to_end(void)
 {
-    int c ;
+	int c;
-    int res = 0 ;
+	int res = 0;
-    in_preproc_dir = 0 ;
+	in_preproc_dir = 0;
-    for ( ; ; ) {
+	for (;;) {
-	IGNORE skip_white ( 0 ) ;
+		IGNORE skip_white(0);
-	read_label : {
+read_label:
-	    /* Inlined version of read_char */
+		/* Inlined version of read_char */
-	    c = next_char () ;
+		c = next_char();
-	    if ( c == char_end ) c = refill_char () ;
+		if (c == char_end) {
+			c = refill_char();
+		}
-	    if ( c == char_question ) c = adjust_trigraph () ;
+		if (c == char_question) {
+			c = adjust_trigraph();
+		}
-	    if ( c == char_backslash ) {
+		if (c == char_backslash) {
-		c = next_char () ;
+			c = next_char();
-		if ( c == char_end ) c = refill_char () ;
+			if (c == char_end) {
+				c = refill_char();
+			}
-		if ( c == char_return ) c = read_newline () ;
+			if (c == char_return) {
+				c = read_newline();
+			}
-		if ( c == char_newline ) {
+			if (c == char_newline) {
-		    /* Allow for escaped newlines */
+				/* Allow for escaped newlines */
-		    crt_loc.line++ ;
+				crt_loc.line++;
-		    crt_loc.column = 0 ;
+				crt_loc.column = 0;
-		    input_crt = input_posn ;
+				input_crt = input_posn;
-		    goto read_label ;
+				goto read_label;
+			}
+			unread_char(c);
+		} else if (c == char_newline) {
+			/* New line characters */
+			crt_loc.line++;
+			crt_loc.column = 0;
+			input_crt = input_posn;
+			crt_line_changed = 1;
+			crt_spaces = 0;
+			return(res);
+		} else if (START_STRING(c)) {
+			/* String literals */
+			res = 1;
+			c = skip_string(c);
+			if (c == lex_eof) {
+				return(res);
+			}
+		} else if (c == char_eof) {
+			/* End of file characters */
+			break;
+		} else {
+			res = 1;
+		}
-		unread_char ( c ) ;
-	    } else if ( c == char_newline ) {
-		/* New line characters */
-		crt_loc.line++ ;
-		crt_loc.column = 0 ;
-		input_crt = input_posn ;
-		crt_line_changed = 1 ;
-		crt_spaces = 0 ;
-		return ( res ) ;
-	    } else if ( START_STRING ( c ) ) {
-		/* String literals */
-		res = 1 ;
-		c = skip_string ( c ) ;
-		if ( c == lex_eof ) return ( res ) ;
-	    } else if ( c == char_eof ) {
-		/* End of file characters */
-		break ;
-	    } else {
-		res = 1 ;
-	    }
+	}
-    }
-    update_column () ;
+	update_column();
-    report ( crt_loc, ERR_lex_phases_eof () ) ;
+	report(crt_loc, ERR_lex_phases_eof());
-    good_eof = 1 ;
+	good_eof = 1;
-    return ( res ) ;
+	return(res);
+}
 /*
     READ A UNICODE CHARACTER
     This routine reads a unicode character.  It is entered after the
     initial backslash and the following character, c, have been read.
     It assigns the character type to pc and returns the character code.
 */
-static unsigned long read_unicode
+static unsigned long
-    PROTO_N ( ( c, pc ) )
-    PROTO_T ( int c X int *pc )
+read_unicode(int c, int *pc)
+{
-    unsigned i, n ;
+	unsigned i, n;
-    unsigned long u ;
+	unsigned long u;
-    character s [10] ;
+	character s[10];
-    ERROR err = NULL_err ;
+	ERROR err = NULL_err;
-    string p = s ;
+	string p = s;
-    if ( c == char_u && allow_unicodes ) {
+	if (c == char_u && allow_unicodes) {
-	/* Read '\uxxxx' */
+		/* Read '\uxxxx' */
-	*pc = CHAR_UNI4 ;
+		*pc = CHAR_UNI4;
-	n = 4 ;
+		n = 4;
-    } else if ( c == char_U && allow_unicodes ) {
+	} else if (c == char_U && allow_unicodes) {
-	/* Read '\Uxxxxxxxx' */
+		/* Read '\Uxxxxxxxx' */
-	*pc = CHAR_UNI8 ;
+		*pc = CHAR_UNI8;
-	n = 8 ;
+		n = 8;
-    } else {
+	} else {
-	unread_char ( c ) ;
+		unread_char(c);
-	*pc = CHAR_NONE ;
+		*pc = CHAR_NONE;
-	return ( 0 ) ;
+		return(0);
-    }
-    for ( i = 0 ; i < n ; i++ ) {
-	int t ;
-	int d = read_char () ;
-	if ( d == char_eof ) break ;
-#if FS_EXTENDED_CHAR
-	if ( IS_EXTENDED ( d ) ) {
-	    unread_char ( d ) ;
-	    break ;
+	}
+	for (i = 0; i < n; i++) {
+		int t;
+		int d = read_char();
+		if (d == char_eof) {
+			break;
+		}
+#if FS_EXTENDED_CHAR
+		if (IS_EXTENDED(d)) {
+			unread_char(d);
+			break;
+		}
 #endif
-	t = lookup_char ( d ) ;
+		t = lookup_char(d);
-	if ( !is_alphanum ( t ) ) {
+		if (!is_alphanum(t)) {
-	    unread_char ( d ) ;
+			unread_char(d);
-	    break ;
+			break;
+		}
+		s[i] = (character)d;
+	}
+	s[i] = 0;
+	u = eval_unicode(c, n, pc, &p, &err);
+	if (!IS_NULL_err(err)) {
+		update_column();
+		report(crt_loc, err);
+	}
-	s [i] = ( character ) d ;
-    }
-    s [i] = 0 ;
-    u = eval_unicode ( c, n, pc, &p, &err ) ;
-    if ( !IS_NULL_err ( err ) ) {
-	update_column () ;
-	report ( crt_loc, err ) ;
-    }
-    return ( u ) ;
+	return(u);
+}
 /*
     READ AN EXTENDED IDENTIFIER
     This routine reads an extended identifier name (one including a unicode
     character).  It is entered after reading the simple characters in the
     token buffer plus the unicode character given by u and ch.
 */
-static HASHID read_extended_id
+static HASHID
-    PROTO_N ( ( u, ch ) )
-    PROTO_T ( unsigned long u X int ch )
+read_extended_id(unsigned long u, int ch)
 {
-    string s ;
+	string s;
-    int c, t ;
+	int c, t;
-    HASHID nm ;
+	HASHID nm;
-    unsigned long h ;
+	unsigned long h;
-    BUFFER *bf = &token_buff ;
+	BUFFER *bf = &token_buff;
-    do {
+	do {
-	if ( !unicode_alpha ( u ) ) {
+		if (!unicode_alpha(u)) {
-	    /* Report illegal identifiers */
+			/* Report illegal identifiers */
-	    update_column () ;
+			update_column();
-	    report ( crt_loc, ERR_lex_name_extendid ( u ) ) ;
+			report(crt_loc, ERR_lex_name_extendid(u));
-	}
+		}
-	print_char ( u, ch, 0, bf ) ;
+		print_char(u, ch, 0, bf);
-	for ( ; ; ) {
+		for (;;) {
-	    c = read_char () ;
+			c = read_char();
 #if FS_EXTENDED_CHAR
-	    if ( IS_EXTENDED ( c ) ) break ;
+			if (IS_EXTENDED(c)) {
+				break;
+			}
 #endif
-	    t = lookup_char ( c ) ;
+			t = lookup_char(c);
-	    if ( !is_alphanum ( t ) ) break ;
+			if (!is_alphanum(t)) {
+				break;
+			}
-	    bfputc ( bf, c ) ;
+			bfputc(bf, c);
-	}
+		}
-	ch = CHAR_NONE ;
+		ch = CHAR_NONE;
-	if ( c == char_backslash ) {
+		if (c == char_backslash) {
-	    int nextc = read_char () ;
+			int nextc = read_char();
-	    u = read_unicode ( nextc, &ch ) ;
+			u = read_unicode(nextc, &ch);
-	}
+		}
-    } while ( ch != CHAR_NONE ) ;
+	} while (ch != CHAR_NONE);
-    unread_char ( c ) ;
+	unread_char(c);
-    bfputc ( bf, 0 ) ;
+	bfputc(bf, 0);
-    s = bf->start ;
+	s = bf->start;
-    h = hash ( s ) ;
+	h = hash(s);
-    nm = lookup_name ( s, h, 1, lex_unknown ) ;
+	nm = lookup_name(s, h, 1, lex_unknown);
-    return ( nm ) ;
+	return(nm);
+}
 /*
     HASH VALUE FOR IDENTIFIERS
     the hash value needs to be kept in step with the routine hash (it
     is checked by an assertion in lookup_name, so any errors should be
     caught quickly if in debug mode).
 */
-HASHID token_hashid = NULL_hashid ;
+HASHID token_hashid = NULL_hashid;
 /*
     MAIN PASS ANALYSER
     This routine reads the next preprocessing token from the input file.
     It is designed for speed rather than elegance, hence the rather
     indiscriminate use of labels.  Trigraphs and escaped newlines
     involving the first character are processed by hand.  This routine
     corresponds to phase 3 of the phases of translation.  The position
     within the line is tracked by column - this is zero at the start of
     a line, positive if only white space has been read and negative
     otherwise.  preproc keeps track of the last preprocessing directive.
 */
-int read_token
+int
-    PROTO_Z ()
+read_token(void)
+{
-    int c, t ;
+	int c, t;
-    int column = -1 ;
+	int column = -1;
-    int preproc = lex_ignore_token ;
+	int preproc = lex_ignore_token;
-    /* Read the next character */
+	/* Read the next character */
-    start_label : {
+start_label:
-	c = next_char () ;
+	c = next_char();
-	if ( c == char_end ) c = refill_char () ;
+	if (c == char_end)c = refill_char();
-	restart_label : {
+restart_label:
 #if FS_EXTENDED_CHAR
-	    if ( IS_EXTENDED ( c ) ) {
+	if (IS_EXTENDED(c)) {
-		goto unknown_label ;
+		goto unknown_label;
-	    }
-#endif
-	    t = lookup_char ( c ) ;
-	    if ( is_white ( t ) ) {
-		crt_spaces++ ;
-		goto start_label ;
-	    }
-	}
-	process_label : {
-	    /* Process the next character */
+	}
-    }
-    /* Check symbols and punctuation */
-    if ( is_symbol ( t ) ) {
-	switch ( c ) {
-	    case char_question : {
-		/* Deal with '?' and trigraphs */
-		c = adjust_trigraph () ;
-		if ( c == char_question ) return ( lex_question ) ;
-		goto restart_label ;
-	    }
+#endif
-	    case char_backslash : {
-		/* Deal with escaped newlines */
-		unsigned long u ;
-		int ch = CHAR_NONE ;
-		int nextc = next_char () ;
+	t = lookup_char(c);
-		if ( nextc == char_end ) nextc = refill_char () ;
-		if ( nextc == char_return ) nextc = read_newline () ;
-		if ( nextc == char_newline ) {
+	if (is_white(t)) {
-		    crt_loc.line++ ;
+		crt_spaces++;
-		    crt_loc.column = 0 ;
-		    input_crt = input_posn ;
-		    if ( column == 0 ) column = 1 ;
-		    goto start_label ;
+		goto start_label;
-		}
-		/* Check for unicode characters */
-		u = read_unicode ( nextc, &ch ) ;
-		if ( ch != CHAR_NONE ) {
-		    token_buff.posn = token_buff.start ;
-		    token_hashid = read_extended_id ( u, ch ) ;
-		    return ( lex_identifier ) ;
-		}
-		return ( lex_backslash ) ;
-	    }
-	    case char_hash : {
-		/* Deal with '#' and '##' */
-		c = read_char () ;
-		if ( c == char_hash ) return ( lex_hash_Hhash_H1 ) ;
-		unread_char ( c ) ;
-		/* Return with '#' if not at start of line */
-		if ( column < 0 || no_preproc_dir ) {
-		    return ( lex_hash_H1 ) ;
-		}
+	}
-		/* Deal with preprocessing directives */
-		preproc_label : {
+process_label:
-		    unsigned long sp = skip_white ( 0 ) ;
-		    update_column () ;
-		    if ( column ) report ( crt_loc, ERR_cpp_indent () ) ;
-		    if ( sp & ( WHITE_SPACE | WHITE_ESC_NEWLINE ) ) {
-			report ( preproc_loc, ERR_cpp_indent_dir () ) ;
-		    }
-		    preproc = read_preproc_dir ( 1, preproc ) ;
-		    if ( preproc < 0 ) goto start_line_label ;
-		    unread_char ( char_newline ) ;
+	/* Process the next character */
-		    crt_loc.line-- ;
-		    crt_loc.column = 0 ;
-		    return ( preproc ) ;
-		}
-	    }
-	    case char_percent : {
-		/* Deal with '%', '%=', '%>', '%:' and '%:%:' */
-		c = read_char () ;
-		if ( c == char_equal ) return ( lex_rem_Heq ) ;
-		if ( c == char_greater && allow_digraphs ) {
-		    return ( lex_close_Hbrace_H2 ) ;
-		}
-		if ( c == char_colon && allow_digraphs ) {
-		    /* Check for '%:' and '%:%:' */
+	/* Check symbols and punctuation */
-		    c = read_char () ;
-		    if ( c == char_percent ) {
-			int nextc = read_char () ;
-			if ( nextc == char_colon ) {
+	if (is_symbol(t)) {
-			    return ( lex_hash_Hhash_H2 ) ;
-			}
-			unread_char ( nextc ) ;
-		    }
-		    unread_char ( c ) ;
-		    /* Return with '%:' if not at start of line */
-		    if ( column < 0 || no_preproc_dir ) {
-			return ( lex_hash_H2 ) ;
-		    }
-		    /* Otherwise this is a preprocessing directive */
-		    IGNORE get_digraph ( lex_hash_H2 ) ;
-		    goto preproc_label ;
-		}
-		unread_char ( c ) ;
+		switch (c) {
-		return ( lex_rem ) ;
-	    }
-	    case char_quote : {
+		case char_question: {
-		/* Deal with string literals */
-		IGNORE read_string ( c, 1 ) ;
-		return ( lex_string_Hlit ) ;
-	    }
-	    case char_single_quote : {
-		/* Deal with character literals */
-		IGNORE read_string ( c, 1 ) ;
-		return ( lex_char_Hlit ) ;
-	    }
-	    case char_exclaim : {
-		/* Deal with '!' and '!=' */
+			/* Deal with '?' and trigraphs */
-		c = read_char () ;
+			c = adjust_trigraph();
-		if ( c == char_equal ) return ( lex_not_Heq_H1 ) ;
+			if (c == char_question) return(lex_question);
-		unread_char ( c ) ;
-		return ( lex_not_H1 ) ;
+			goto restart_label;
-	    }
+		}
-	    case char_ampersand : {
+		case char_backslash: {
-		/* Deal with '&', '&&' and '&=' */
+			/* Deal with escaped newlines */
+			unsigned long u;
+			int ch = CHAR_NONE;
-		c = read_char () ;
+			int nextc = next_char();
-		if ( c == char_ampersand ) return ( lex_logical_Hand_H1 ) ;
+			if (nextc == char_end)nextc = refill_char();
-		if ( c == char_equal ) return ( lex_and_Heq_H1 ) ;
+			if (nextc == char_return)nextc = read_newline();
+			if (nextc == char_newline) {
+				crt_loc.line++;
-		unread_char ( c ) ;
+				crt_loc.column = 0;
+				input_crt = input_posn;
+				if (column == 0)column = 1;
-		return ( lex_and_H1 ) ;
+				goto start_label;
-	    }
+			}
-	    case char_asterix : {
+			/* Check for unicode characters */
-		/* Deal with '*' and '*=' */
+			u = read_unicode(nextc, &ch);
-		c = read_char () ;
+			if (ch != CHAR_NONE) {
-		if ( c == char_equal ) return ( lex_star_Heq ) ;
+				token_buff.posn = token_buff.start;
-		unread_char ( c ) ;
+				token_hashid = read_extended_id(u, ch);
-		return ( lex_star ) ;
+				return(lex_identifier);
-	    }
+			}
-	    case char_plus : {
-		/* Deal with '+', '++' and '+=' */
-		c = read_char () ;
-		if ( c == char_plus ) return ( lex_plus_Hplus ) ;
-		if ( c == char_equal ) return ( lex_plus_Heq ) ;
-		if ( c == char_question && allow_extra_symbols ) {
-		    return ( lex_abs ) ;
+			return(lex_backslash);
+		}
-		unread_char ( c ) ;
-		return ( lex_plus ) ;
-	    }
-	    case char_minus : {
-		/* Deal with '-', '--', '-=', '->' and '->*' */
-		c = read_char () ;
-		if ( c == char_minus ) return ( lex_minus_Hminus ) ;
-		if ( c == char_equal ) return ( lex_minus_Heq ) ;
-		if ( c == char_greater ) {
-#if LANGUAGE_CPP
-		    /* '->*' is only allowed in C++ */
-		    c = read_char () ;
-		    if ( c == char_asterix ) return ( lex_arrow_Hstar ) ;
-		    unread_char ( c ) ;
-#endif
-		    return ( lex_arrow ) ;
-		}
-		unread_char ( c ) ;
-		return ( lex_minus ) ;
-	    }
-	    case char_dot : {
+		case char_hash:
-		/* Deal with '.', '...', '.*' and numbers */
+			/* Deal with '#' and '##' */
-		c = read_char () ;
+			c = read_char();
-		if ( c == char_dot ) {
+			if (c == char_hash) {
+				return(lex_hash_Hhash_H1);
+			}
-		    c = read_char () ;
+			unread_char(c);
+			/* Return with '#' if not at start of line */
+			if (column < 0 || no_preproc_dir) {
+				return(lex_hash_H1);
+			}
+			/* Deal with preprocessing directives */
+preproc_label:	{
+			unsigned long sp = skip_white(0);
+			update_column();
+			if (column) {
+				report(crt_loc, ERR_cpp_indent());
+			}
+			if (sp & (WHITE_SPACE | WHITE_ESC_NEWLINE)) {
+				report(preproc_loc, ERR_cpp_indent_dir());
+			}
-		    if ( c == char_dot ) return ( lex_ellipsis ) ;
+			preproc = read_preproc_dir(1, preproc);
-		    unread_char ( c ) ;
+			if (preproc < 0) {
+				goto start_line_label;
+			}
-		    unread_char ( char_dot ) ;
+			unread_char(char_newline);
+			crt_loc.line--;
+			crt_loc.column = 0;
-		    return ( lex_dot ) ;
+			return(preproc);
+		}
-#if LANGUAGE_CPP
-		/* '.*' is only allowed in C++ */
-		if ( c == char_asterix ) return ( lex_dot_Hstar ) ;
-#endif
-#if FS_EXTENDED_CHAR
-		if ( IS_EXTENDED ( c ) ) {
-		    unread_char ( c ) ;
-		    return ( lex_dot ) ;
-		}
-#endif
-		t = lookup_char ( c ) ;
-		if ( is_digit ( t ) ) {
-		    /* Indicate a number with first digit '.' */
-		    t = POINT ;
-		    goto number_label ;
-		}
-		unread_char ( c ) ;
-		return ( lex_dot ) ;
-	    }
-	    case char_slash : {
-		/* Deal with '/', '/=' and comments */
-		c = read_char () ;
-		if ( START_COMMENT ( c ) ) {
-		    int a = analyse_comments ;
-		    c = skip_comment ( a ) ;
-		    if ( c == lex_eof ) goto eof_label ;
-		    if ( a ) {
-			c = lint_comment () ;
-			if ( c >= 0 ) return ( c ) ;
-		    }
-		    if ( column == 0 ) column = 1 ;
-		    goto start_label ;
-		}
-		if ( START_CPP_COMMENT ( c ) ) {
-		    int a = analyse_comments ;
-		    c = skip_cpp_comment ( a ) ;
-		    if ( c == lex_eof ) goto eof_label ;
-		    if ( a ) {
-			c = lint_comment () ;
-			if ( c >= 0 ) return ( c ) ;
-		    }
-		    IGNORE read_char () ;
-		    goto newline_label ;
-		}
-		if ( c == char_equal ) return ( lex_div_Heq ) ;
-		unread_char ( c ) ;
-		return ( lex_div ) ;
-	    }
+		case char_percent:
+			/* Deal with '%', '%=', '%>', '%:' and '%:%:' */
+			c = read_char();
+			if (c == char_equal) {
+				return(lex_rem_Heq);
+			}
+			if (c == char_greater && allow_digraphs) {
+				return(lex_close_Hbrace_H2);
+			}
+			if (c == char_colon && allow_digraphs) {
+				/* Check for '%:' and '%:%:' */
+				c = read_char();
+				if (c == char_percent) {
+					int nextc = read_char();
+					if (nextc == char_colon) {
+						return(lex_hash_Hhash_H2);
+					}
+					unread_char(nextc);
+				}
+				unread_char(c);
+				/* Return with '%:' if not at start of line */
+				if (column < 0 || no_preproc_dir) {
+					return(lex_hash_H2);
+				}
+				/* Otherwise this is a preprocessing
+				 * directive */
+				IGNORE get_digraph(lex_hash_H2);
+				goto preproc_label;
+			}
+			unread_char(c);
+			return(lex_rem);
-	    case char_colon : {
+		case char_quote:
+			/* Deal with string literals */
+			IGNORE read_string(c, 1);
+			return(lex_string_Hlit);
+		case char_single_quote:
+			/* Deal with character literals */
+			IGNORE read_string(c, 1);
+			return(lex_char_Hlit);
+		case char_exclaim:
+			/* Deal with '!' and '!=' */
+			c = read_char();
+			if (c == char_equal) {
+				return(lex_not_Heq_H1);
+			}
+			unread_char(c);
+			return(lex_not_H1);
+		case char_ampersand:
+			/* Deal with '&', '&&' and '&=' */
+			c = read_char();
+			if (c == char_ampersand) {
+				return(lex_logical_Hand_H1);
+			}
+			if (c == char_equal) {
+				return(lex_and_Heq_H1);
+			}
+			unread_char(c);
+			return(lex_and_H1);
+		case char_asterix:
+			/* Deal with '*' and '*=' */
+			c = read_char();
+			if (c == char_equal) {
+				return(lex_star_Heq);
+			}
+			unread_char(c);
+			return(lex_star);
+		case char_plus:
-		/* Deal with ':', '::' and ':>' */
+			/* Deal with '+', '++' and '+=' */
+			c = read_char();
+			if (c == char_plus) {
+				return(lex_plus_Hplus);
+			}
+			if (c == char_equal) {
+				return(lex_plus_Heq);
+			}
+			if (c == char_question && allow_extra_symbols) {
+				return(lex_abs);
+			}
+			unread_char(c);
+			return(lex_plus);
+		case char_minus:
+			/* Deal with '-', '--', '-=', '->' and '->*' */
-		c = read_char () ;
+			c = read_char();
+			if (c == char_minus) {
+				return(lex_minus_Hminus);
+			}
+			if (c == char_equal) {
+				return(lex_minus_Heq);
+			}
+			if (c == char_greater) {
 #if LANGUAGE_CPP
-		/* '::' is only allowed in C++ */
+				/* '->*' is only allowed in C++ */
+				c = read_char();
-		if ( c == char_colon ) return ( lex_colon_Hcolon ) ;
+				if (c == char_asterix) {
+					return(lex_arrow_Hstar);
+				}
+				unread_char(c);
 #endif
-		if ( c == char_greater && allow_digraphs ) {
-		    return ( lex_close_Hsquare_H2 ) ;
+				return(lex_arrow);
-		}
+			}
-		unread_char ( c ) ;
+			unread_char(c);
-		return ( lex_colon ) ;
+			return(lex_minus);
-	    }
 #endif
+			if (c == char_greater && allow_digraphs) {
+				return(lex_close_Hsquare_H2);
+			}
+			unread_char(c);
+			return(lex_colon);
+		case char_less:
+			/* Deal with '<', '<=', '<<', '<<=', '<%', '<:' */
+			c = read_char();
-	if ( is_alphanum ( t ) ) {
+			if (c == char_equal) {
+				return(lex_less_Heq);
+			}
+			if (c == char_less) {
+				c = read_char();
+				if (c == char_equal) {
+					return(lex_lshift_Heq);
+				}
+				unread_char(c);
+				return(lex_lshift);
+			}
+			if (c == char_percent && allow_digraphs) {
+				return(lex_open_Hbrace_H2);
+			}
+			if (c == char_colon && allow_digraphs) {
+				return(lex_open_Hsquare_H2);
+			}
-	    /* Scan the third and subsequent characters */
+			if (c == char_question && allow_extra_symbols) {
+				return(lex_min);
+			}
+			unread_char(c);
+			return(lex_less);
+		case char_equal:
+			/* Deal with '=' and '==' */
+			c = read_char();
+			switch (c) {
+			case char_equal:
+				return(lex_eq);
+			case char_ampersand:
+			case char_asterix:
+			case char_minus:
+			case char_plus:
+				update_column();
+				report(crt_loc, ERR_lex_op_old_assign(c, c));
-	    do {
+				break;
+			}
+			unread_char(c);
+			return(lex_assign);
+		case char_greater:
-		h = HASH_POWER * h + ( unsigned long ) c ;
+			/* Deal with '>', '>=', '>>' and '>>=' */
+			c = read_char();
+			if (c == char_equal) {
+				return(lex_greater_Heq);
+			}
-		*s = ( character ) c ;
+			if (c == char_greater) {
+				c = read_char();
+				if (c == char_equal) {
+					return(lex_rshift_Heq);
+				}
+				unread_char(c);
+				return(lex_rshift);
+			}
+			if (c == char_question && allow_extra_symbols) {
+				return(lex_max);
+			}
+			unread_char(c);
+			return(lex_greater);
+		case char_circum:
+			/* Deal with '^' and '^=' */
+			c = read_char();
+			if (c == char_equal) {
+				return(lex_xor_Heq_H1);
+			}
+			unread_char(c);
+			return(lex_xor_H1);
+		case char_bar:
+			/* Deal with '|', '||' and '|=' */
+			c = read_char();
-		if ( ++s == se ) {
+			if (c == char_bar) {
+				return(lex_logical_Hor_H1);
+			}
+			if (c == char_equal) {
+				return(lex_or_Heq_H1);
+			}
+			unread_char(c);
+			return(lex_or_H1);
+		case char_open_round:
+			/* Deal with '(' */
+			return(lex_open_Hround);
+		case char_close_round:
+			/* Deal with ')' */
+			return(lex_close_Hround);
+		case char_comma:
+			/* Deal with ',' */
+			return(lex_comma);
+		case char_semicolon:
+			/* Deal with ';' */
+			return(lex_semicolon);
+		case char_open_square:
+			/* Deal with '[' */
+			return(lex_open_Hsquare_H1);
+		case char_close_square:
+			/* Deal with ']' */
+			return(lex_close_Hsquare_H1);
+		case char_open_brace:
+			/* Deal with '{' */
+			return(lex_open_Hbrace_H1);
+		case char_close_brace:
+			/* Deal with '}' */
-		    s = extend_buffer ( bf, s ) ;
+			return(lex_close_Hbrace_H1);
-		    se = bf->end ;
+		case char_tilde:
+			/* Deal with '~' */
+			return(lex_compl_H1);
+		default:
+			/* Anything else is an unknown character */
+			goto unknown_label;
+		}
+	}
+	/* Read an identifier (calculating hash value on fly) */
+	if (is_alpha(t)) {
+		HASHID nm;
+		LOCATION loc;
+		BUFFER *bf = &token_buff;
+		string s = bf->start;
+		string se = bf->end;
+		unsigned long h = (unsigned long)c;
+		*(s++) = (character)c;
+		/* Get the second character */
+		update_column();
+		loc = crt_loc;
-		c = read_char () ;
+		c = read_char();
 #if FS_EXTENDED_CHAR
+		t = (IS_EXTENDED(c)? ILLEG : lookup_char(c));
+#else
+		t = lookup_char(c);
+#endif
+		if (is_alphanum(t)) {
+			/* Scan the third and subsequent characters */
+			do {
+				h = HASH_POWER * h + (unsigned long)c;
+				*s = (character)c;
+				if (++s == se) {
+					s = extend_buffer(bf, s);
+					se = bf->end;
+				}
+				c = read_char();
+#if FS_EXTENDED_CHAR
-		if ( IS_EXTENDED ( c ) ) break ;
+				if (IS_EXTENDED(c)) {
+					break;
+				}
 #endif
-		t = lookup_char ( c ) ;
+				t = lookup_char(c);
-	    } while ( is_alphanum ( t ) ) ;
+			} while (is_alphanum(t));
-	} else {
+		} else {
-	    /* Allow for wide strings and characters */
+			/* Allow for wide strings and characters */
-	    if ( h == char_L && is_symbol ( t ) ) {
+			if (h == char_L && is_symbol(t)) {
-		if ( c == char_quote ) {
+				if (c == char_quote) {
-		    IGNORE read_string ( c, 1 ) ;
+					IGNORE read_string(c, 1);
-		    return ( lex_wstring_Hlit ) ;
+					return(lex_wstring_Hlit);
-		}
+				}
-		if ( c == char_single_quote ) {
+				if (c == char_single_quote) {
-		    IGNORE read_string ( c, 1 ) ;
+					IGNORE read_string(c, 1);
-		    return ( lex_wchar_Hlit ) ;
+					return(lex_wchar_Hlit);
+				}
+			}
+			/* Identifier of length one */
+		}
+		if (c == char_backslash) {
+			/* Allow for extended identifiers */
+			int ch = CHAR_NONE;
+			int nextc = read_char();
+			unsigned long u = read_unicode(nextc, &ch);
+			if (ch != CHAR_NONE) {
+				bf->posn = s;
+				nm = read_extended_id(u, ch);
+				goto identifier_label;
+			}
+		}
+		unread_char(c);
+		se = s;
+		*se = 0;
+		/* Look up the symbol in the hash table */
+		h %= HASH_SIZE;
+		s = bf->start;
+		nm = lookup_name(s, h, 0, lex_unknown);
+identifier_label:
+		{
+			IDENTIFIER id = DEREF_id(hashid_id(nm));
+			while (!IS_id_dummy(id)) {
+				/* Scan to last hidden value */
+				id = DEREF_id(id_alias(id));
+			}
+			COPY_loc(id_loc(id), loc);
+		}
+		token_hashid = nm;
+		return(lex_identifier);
+	}
+	/* Read the first token in a line */
+	if (c == char_return) {
+		c = read_newline();
+	}
+	if (c == char_newline) {
+newline_label:
+		/* Re-entry point after C++ style comments */
+		crt_loc.line++;
+		crt_loc.column = 0;
+		input_crt = input_posn;
+		crt_line_changed = 1;
+		crt_spaces = 0;
+		if (in_preproc_dir == 1) {
+			in_preproc_dir = 0;
+			return(lex_newline);
+		}
+start_line_label:
+		/* Re-entry point after preprocessing directives */
+		column = 0;
+		for (;;) {
+			/* Step over any obvious spaces */
+			c = next_char();
+			if (c == char_end) {
+				c = refill_char();
+			}
+			if (c == char_return) {
+				c = read_newline();
+			}
+			if (c == char_sub) {
+				c = read_eof();
+			}
+			if (c == char_newline) {
+				crt_loc.line++;
+				crt_loc.column = 0;
+				input_crt = input_posn;
+				crt_line_changed = 1;
+				crt_spaces = 0;
+				column = 0;
+			} else if (c == char_eof) {
+				/* Check for end of file (should start line) */
+				if (column == 0) {
+					good_eof = 1;
+				}
+				goto eof_label;
+			} else if (c == char_space) {
+				crt_spaces++;
+				column = 1;
+			} else if (c == char_tab) {
+				unsigned long tab = tab_width;
+				crt_spaces = tab *(crt_spaces / tab + 1);
+				column = 1;
+			} else {
+#if FS_EXTENDED_CHAR
+				if (IS_EXTENDED(c)) {
+					t = ILLEG;
+					break;
+				}
+#endif
+				t = lookup_char(c);
+				if (is_white(t)) {
+					if (!is_newline(t)) {
+						crt_spaces++;
+						column = 1;
+					}
+				} else {
+					break;
+				}
+			}
+		}
-	    }
-	    /* Identifier of length one */
+		/* c and t now hold the next character */
+		goto process_label;
+	}
-	if ( c == char_backslash ) {
-	    /* Allow for extended identifiers */
-	    int ch = CHAR_NONE ;
-	    int nextc = read_char () ;
-	    unsigned long u = read_unicode ( nextc, &ch ) ;
-	    if ( ch != CHAR_NONE ) {
-		bf->posn = s ;
-		nm = read_extended_id ( u, ch ) ;
-		goto identifier_label ;
-	    }
-	}
-	unread_char ( c ) ;
-	se = s ;
-	*se = 0 ;
-	/* Look up the symbol in the hash table */
-	h %= HASH_SIZE ;
-	s = bf->start ;
-	nm = lookup_name ( s, h, 0, lex_unknown ) ;
-	identifier_label : {
-	    IDENTIFIER id = DEREF_id ( hashid_id ( nm ) ) ;
-	    while ( !IS_id_dummy ( id ) ) {
-		/* Scan to last hidden value */
+	/* Read a pp-number */
-		id = DEREF_id ( id_alias ( id ) ) ;
-	    }
-	    COPY_loc ( id_loc ( id ), loc ) ;
-	}
-	token_hashid = nm ;
-	return ( lex_identifier ) ;
+	if (is_digit(t)) {
-    }
-    /* Read the first token in a line */
-    if ( c == char_return ) c = read_newline () ;
-    if ( c == char_newline ) {
-	newline_label : {
+number_label:	{
-	    /* Re-entry point after C++ style comments */
-	    crt_loc.line++ ;
+			int lastc;
-	    crt_loc.column = 0 ;
+			BUFFER *bf = &token_buff;
-	    input_crt = input_posn ;
+			string s = bf->start;
-	    crt_line_changed = 1 ;
+			string se = bf->end;
-	    crt_spaces = 0 ;
+			if (t == POINT) {
-	    if ( in_preproc_dir == 1 ) {
+				/* t is set to POINT to indicate an initial
-		in_preproc_dir = 0 ;
+				 * '.' */
-		return ( lex_newline ) ;
+				*(s++) = char_dot;
-	    }
-	}
+			}
-	start_line_label : {
+digit_label:
-	    /* Re-entry point after preprocessing directives */
+			/* Step over alphanumeric characters and '.' */
-	    column = 0 ;
-	    for ( ; ; ) {
+			do {
-		/* Step over any obvious spaces */
-		c = next_char () ;
+				*s = (character)c;
-		if ( c == char_end ) c = refill_char () ;
-		if ( c == char_return ) c = read_newline () ;
-		if ( c == char_sub ) c = read_eof () ;
-		if ( c == char_newline ) {
+				if (++s == se) {
-		    crt_loc.line++ ;
-		    crt_loc.column = 0 ;
-		    input_crt = input_posn ;
-		    crt_line_changed = 1 ;
+					s = extend_buffer(bf, s);
-		    crt_spaces = 0 ;
+					se = bf->end;
-		    column = 0 ;
+				}
-		} else if ( c == char_eof ) {
-		    /* Check for end of file (should start line) */
-		    if ( column == 0 ) good_eof = 1 ;
-		    goto eof_label ;
+next_digit_label:
-		} else if ( c == char_space ) {
-		    crt_spaces++ ;
-		    column = 1 ;
+				lastc = c;
-		} else if ( c == char_tab ) {
-		    unsigned long tab = tab_width ;
-		    crt_spaces = tab * ( crt_spaces / tab + 1 ) ;
-		    column = 1 ;
+				c = read_char();
-		} else {
 #if FS_EXTENDED_CHAR
-		    if ( IS_EXTENDED ( c ) ) {
+				if (IS_EXTENDED(c)) {
-			t = ILLEG ;
-			break ;
+					break;
-		    }
+				}
 #endif
-		    t = lookup_char ( c ) ;
+				t = lookup_char(c);
-		    if ( is_white ( t ) ) {
+			} while (is_ppdigit(t));
+			if (c == char_plus || c == char_minus) {
+				/* Allow for [Ee][+-] */
+				if (lastc == char_e || lastc == char_E) {
+					goto digit_label;
+				}
+			}
-			if ( !is_newline ( t ) ) {
+			if (c == char_backslash) {
+				/* Allow for unicode characters */
-			    crt_spaces++ ;
+				int ch = CHAR_NONE;
+				int nextc = read_char();
+				unsigned long u = read_unicode(nextc, &ch);
+				if (ch != CHAR_NONE) {
-			    column = 1 ;
+					bf->posn = s;
+					print_char(u, ch, 0, bf);
+					s = bf->posn;
+					se = bf->end;
+					goto next_digit_label;
+				}
+			}
-		    } else {
+			*s = 0;
-			break ;
+			unread_char(c);
-		    }
 		}
-	    }
-	    /* c and t now hold the next character */
-	    goto process_label ;
+		return(lex_integer_Hlit);
 	}
-    }
-    /* Read a pp-number */
+	/* End of file marker */
-    if ( is_digit ( t ) ) {
-	number_label : {
-	    int lastc ;
-	    BUFFER *bf = &token_buff ;
-	    string s = bf->start ;
-	    string se = bf->end ;
-	    if ( t == POINT ) {
-		/* t is set to POINT to indicate an initial '.' */
-		*( s++ ) = char_dot ;
+	if (c == char_sub) {
-	    }
-	    digit_label : {
-		/* Step over alphanumeric characters and '.' */
-		do {
-		    *s = ( character ) c ;
-		    if ( ++s == se ) {
-			s = extend_buffer ( bf, s ) ;
-			se = bf->end ;
-		    }
-		    next_digit_label : {
-			lastc = c ;
-			c = read_char () ;
+		c = read_eof();
-#if FS_EXTENDED_CHAR
-			if ( IS_EXTENDED ( c ) ) break ;
-#endif
-			t = lookup_char ( c ) ;
-		    }
-		} while ( is_ppdigit ( t ) ) ;
-		if ( c == char_plus || c == char_minus ) {
-		    /* Allow for [Ee][+-] */
-		    if ( lastc == char_e || lastc == char_E ) {
-			goto digit_label ;
-		    }
-		}
-		if ( c == char_backslash ) {
-		    /* Allow for unicode characters */
-		    int ch = CHAR_NONE ;
-		    int nextc = read_char () ;
-		    unsigned long u = read_unicode ( nextc, &ch ) ;
-		    if ( ch != CHAR_NONE ) {
-			bf->posn = s ;
-			print_char ( u, ch, 0, bf ) ;
-			s = bf->posn ;
-			se = bf->end ;
-			goto next_digit_label ;
-		    }
-		}
-	    }
-	    *s = 0 ;
-	    unread_char ( c ) ;
+	}
-	return ( lex_integer_Hlit ) ;
-    }
-    /* End of file marker */
-    if ( c == char_sub ) c = read_eof () ;
-    if ( c == char_eof ) {
+	if (c == char_eof) {
-	eof_label : {
+eof_label:
-	    if ( in_preproc_dir != 0 ) return ( lex_eof ) ;
+		if (in_preproc_dir != 0) {
+			return(lex_eof);
+		}
-	    if ( !good_eof ) {
+		if (!good_eof) {
-		update_column () ;
+			update_column();
-		report ( crt_loc, ERR_lex_phases_eof () ) ;
+			report(crt_loc, ERR_lex_phases_eof());
-		good_eof = 1 ;
+			good_eof = 1;
-	    }
+		}
-	    if ( end_include ( preproc ) ) {
+		if (end_include(preproc)) {
-		/* Revert to previous file */
+			/* Revert to previous file */
-		good_eof = 0 ;
+			good_eof = 0;
-		preproc = lex_ignore_token ;
+			preproc = lex_ignore_token;
-		goto start_line_label ;
+			goto start_line_label;
-	    }
+		}
+		/* End of main file */
+		return(lex_eof);
+	}
-	/* End of main file */
-	return ( lex_eof ) ;
-    }
-    /* Unknown characters */
+	/* Unknown characters */
-    unknown_label : {
+unknown_label:
+	{
-	string s = token_buff.start ;
+		string s = token_buff.start;
-	add_multi_char ( s, ( unsigned long ) c, CHAR_SIMPLE ) ;
+		add_multi_char(s, (unsigned long)c, CHAR_SIMPLE);
-    }
-    return ( lex_unknown ) ;
+		return(lex_unknown);
+	}
+}
 /*
     INITIALISE INPUT VARIABLES
     This routine initialises the tables of character look-ups and the token
     buffer.
 */
-void init_char
+void
-    PROTO_Z ()
+init_char(void)
+{
-    int i ;
+	int i;
-    unsigned char *p, *q ;
+	unsigned char *p, *q;
-    /* Set native locale for multibyte characters */
+	/* Set native locale for multibyte characters */
 #if FS_MULTIBYTE
+	if (allow_multibyte) {
-    if ( allow_multibyte ) IGNORE setlocale ( LC_CTYPE, "" ) ;
+		IGNORE setlocale(LC_CTYPE, "");
+	}
 #endif
-    /* Allow for non-ASCII codesets */
+	/* Allow for non-ASCII codesets */
-    map_ascii ( main_characters ) ;
+	map_ascii(main_characters);
-    map_ascii ( digit_values ) ;
+	map_ascii(digit_values);
-    map_ascii ( escape_sequences ) ;
+	map_ascii(escape_sequences);
-    /* Set up extra characters */
+	/* Set up extra characters */
-    p = xmalloc_nof ( unsigned char, NO_CHAR ) ;
+	p = xmalloc_nof(unsigned char, NO_CHAR);
-    q = main_characters ;
+	q = main_characters;
-    copy_characters = p ;
+	copy_characters = p;
-    for ( i = 0 ; i < NO_CHAR ; i++ ) *( p++ ) = *( q++ ) ;
+	for (i = 0; i < NO_CHAR; i++) {
+		*(p++) = *(q++);
+	}
-    /* Initialise token buffer */
+	/* Initialise token buffer */
-    token_buff.posn = extend_buffer ( &token_buff, token_buff.posn ) ;
+	token_buff.posn = extend_buffer(&token_buff, token_buff.posn);
-    return ;
+	return;
 }
 /*
     INITIALISE INPUT FILE READING
     This routine initialises the lexical analysis routines in preparation
     for parsing or preprocessing the current input file.
 */
-void init_lex
+void
-    PROTO_Z ()
+init_lex(void)
+{
-    /* Initialise file variables */
+	/* Initialise file variables */
-    crt_buff_no = 0 ;
+	crt_buff_no = 0;
-    IGNORE init_buffer ( crt_buff_no ) ;
+	IGNORE init_buffer(crt_buff_no);
-    start_preproc_if () ;
+	start_preproc_if ();
-    preproc_loc = crt_loc ;
+	preproc_loc = crt_loc;
-    have_syntax_error = 0 ;
+	have_syntax_error = 0;
+	if (do_header) {
-    if ( do_header ) dump_start ( &crt_loc, NIL ( INCL_DIR ) ) ;
+		dump_start(&crt_loc, NIL(INCL_DIR));
+	}
-    /* Deal with first start-up file */
+	/* Deal with first start-up file */
-    open_startup () ;
+	open_startup();
-    /* Force processing to start at the beginning of a line */
+	/* Force processing to start at the beginning of a line */
-    unread_char ( char_newline ) ;
+	unread_char(char_newline);
-    crt_loc.line-- ;
+	crt_loc.line--;
-    /* Initialise the parser */
+	/* Initialise the parser */
-    init_parser ( NIL ( PPTOKEN ) ) ;
+	init_parser(NIL(PPTOKEN));
-    return ;
+	return;
+}
 /*
     PARSE INPUT FILE
     This routine is the main entry point for the parsing of the current
     input file.
 */
-void process_file
+void
-    PROTO_Z ()
+process_file(void)
+{
-    init_lex () ;
+	init_lex();
-    ADVANCE_LEXER ;
+	ADVANCE_LEXER;
-    parse_file ( NULL_type, dspec_none ) ;
+	parse_file(NULL_type, dspec_none);
-    return ;
+	return;
+}

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(root)/trunk/src/producers/common/parse/lex.c – Rev 2 → 7