diff options
Diffstat (limited to 'sunrpc/rpc_parse.c')
| -rw-r--r-- | sunrpc/rpc_parse.c | 965 |
1 files changed, 509 insertions, 456 deletions
diff --git a/sunrpc/rpc_parse.c b/sunrpc/rpc_parse.c index 92f365eeb0..e6c4e4a7aa 100644 --- a/sunrpc/rpc_parse.c +++ b/sunrpc/rpc_parse.c @@ -31,11 +31,11 @@ /* * From: @(#)rpc_parse.c 1.8 89/02/22 (C) 1987 SMI */ -char parse_rcsid[] = +const char parse_rcsid[] = "$Id$"; /* - * rpc_parse.c, Parser for the RPC protocol compiler + * rpc_parse.c, Parser for the RPC protocol compiler * Copyright (C) 1987 Sun Microsystems, Inc. */ #include <stdio.h> @@ -48,241 +48,256 @@ char parse_rcsid[] = #define ARGNAME "arg" -static void isdefined(definition *defp); -static void def_struct(definition *defp); -static void def_program(definition *defp); -static void def_enum(definition *defp); -static void def_const(definition *defp); -static void def_union(definition *defp); -static void check_type_name(const char *name, int new_type); -static void def_typedef(definition *defp); -static void get_declaration(declaration *dec, defkind dkind); -static void get_prog_declaration(declaration *dec, defkind dkind, int num); -static void get_type(const char **prefixp, const char **typep, defkind dkind); -static void unsigned_dec(const char **typep); +static void isdefined (definition * defp); +static void def_struct (definition * defp); +static void def_program (definition * defp); +static void def_enum (definition * defp); +static void def_const (definition * defp); +static void def_union (definition * defp); +static void check_type_name (const char *name, int new_type); +static void def_typedef (definition * defp); +static void get_declaration (declaration * dec, defkind dkind); +static void get_prog_declaration (declaration * dec, defkind dkind, int num); +static void get_type (const char **prefixp, const char **typep, defkind dkind); +static void unsigned_dec (const char **typep); /* * return the next definition you see */ definition * -get_definition(void) +get_definition (void) { - definition *defp; - token tok; - - defp = ALLOC(definition); - get_token(&tok); - switch (tok.kind) { - case TOK_STRUCT: - def_struct(defp); - break; - case TOK_UNION: - def_union(defp); - break; - case TOK_TYPEDEF: - def_typedef(defp); - break; - case TOK_ENUM: - def_enum(defp); - break; - case TOK_PROGRAM: - def_program(defp); - break; - case TOK_CONST: - def_const(defp); - break; - case TOK_EOF: - return (NULL); - default: - error("definition keyword expected"); - } - scan(TOK_SEMICOLON, &tok); - isdefined(defp); - return (defp); + definition *defp; + token tok; + + defp = ALLOC (definition); + get_token (&tok); + switch (tok.kind) + { + case TOK_STRUCT: + def_struct (defp); + break; + case TOK_UNION: + def_union (defp); + break; + case TOK_TYPEDEF: + def_typedef (defp); + break; + case TOK_ENUM: + def_enum (defp); + break; + case TOK_PROGRAM: + def_program (defp); + break; + case TOK_CONST: + def_const (defp); + break; + case TOK_EOF: + return (NULL); + default: + error ("definition keyword expected"); + } + scan (TOK_SEMICOLON, &tok); + isdefined (defp); + return (defp); } static void -isdefined(definition *defp) +isdefined (definition * defp) { - STOREVAL(&defined, defp); + STOREVAL (&defined, defp); } static void -def_struct(definition *defp) +def_struct (definition * defp) { - token tok; - declaration dec; - decl_list *decls; - decl_list **tailp; - - defp->def_kind = DEF_STRUCT; - - scan(TOK_IDENT, &tok); - defp->def_name = tok.str; - scan(TOK_LBRACE, &tok); - tailp = &defp->def.st.decls; - do { - get_declaration(&dec, DEF_STRUCT); - decls = ALLOC(decl_list); - decls->decl = dec; - *tailp = decls; - tailp = &decls->next; - scan(TOK_SEMICOLON, &tok); - peek(&tok); - } while (tok.kind != TOK_RBRACE); - get_token(&tok); - *tailp = NULL; + token tok; + declaration dec; + decl_list *decls; + decl_list **tailp; + + defp->def_kind = DEF_STRUCT; + + scan (TOK_IDENT, &tok); + defp->def_name = tok.str; + scan (TOK_LBRACE, &tok); + tailp = &defp->def.st.decls; + do + { + get_declaration (&dec, DEF_STRUCT); + decls = ALLOC (decl_list); + decls->decl = dec; + *tailp = decls; + tailp = &decls->next; + scan (TOK_SEMICOLON, &tok); + peek (&tok); + } + while (tok.kind != TOK_RBRACE); + get_token (&tok); + *tailp = NULL; } static void -def_program(definition *defp) +def_program (definition * defp) { - token tok; - declaration dec; - decl_list *decls; - decl_list **tailp; - version_list *vlist; - version_list **vtailp; - proc_list *plist; - proc_list **ptailp; - int num_args; - bool_t isvoid = FALSE; /* whether first argument is void */ - defp->def_kind = DEF_PROGRAM; - scan(TOK_IDENT, &tok); - defp->def_name = tok.str; - scan(TOK_LBRACE, &tok); - vtailp = &defp->def.pr.versions; - tailp = &defp->def.st.decls; - scan(TOK_VERSION, &tok); - do { - scan(TOK_IDENT, &tok); - vlist = ALLOC(version_list); - vlist->vers_name = tok.str; - scan(TOK_LBRACE, &tok); - ptailp = &vlist->procs; - do { - /* get result type */ - plist = ALLOC(proc_list); - get_type(&plist->res_prefix, &plist->res_type, - DEF_PROGRAM); - if (streq(plist->res_type, "opaque")) { - error("illegal result type"); - } - scan(TOK_IDENT, &tok); - plist->proc_name = tok.str; - scan(TOK_LPAREN, &tok); - /* get args - first one*/ - num_args = 1; - isvoid = FALSE; - /* type of DEF_PROGRAM in the first - * get_prog_declaration and DEF_STURCT in the next - * allows void as argument if it is the only argument - */ - get_prog_declaration(&dec, DEF_PROGRAM, num_args); - if (streq(dec.type, "void")) - isvoid = TRUE; - decls = ALLOC(decl_list); - plist->args.decls = decls; - decls->decl = dec; - tailp = &decls->next; - /* get args */ - while(peekscan(TOK_COMMA, &tok)) { - num_args++; - get_prog_declaration(&dec, DEF_STRUCT, - num_args); - decls = ALLOC(decl_list); - decls->decl = dec; - *tailp = decls; - if (streq(dec.type, "void")) - isvoid = TRUE; - tailp = &decls->next; - } - /* multiple arguments are only allowed in newstyle */ - if( !newstyle && num_args > 1 ) { - error("only one argument is allowed" ); - } - if (isvoid && num_args > 1) { - error("illegal use of void in program definition"); - } - *tailp = NULL; - scan(TOK_RPAREN, &tok); - scan(TOK_EQUAL, &tok); - scan_num(&tok); - scan(TOK_SEMICOLON, &tok); - plist->proc_num = tok.str; - plist->arg_num = num_args; - *ptailp = plist; - ptailp = &plist->next; - peek(&tok); - } while (tok.kind != TOK_RBRACE); - *ptailp = NULL; - *vtailp = vlist; - vtailp = &vlist->next; - scan(TOK_RBRACE, &tok); - scan(TOK_EQUAL, &tok); - scan_num(&tok); - vlist->vers_num = tok.str; - /* make the argument structure name for each arg*/ - for(plist = vlist->procs; plist != NULL; - plist = plist->next) { - plist->args.argname = make_argname(plist->proc_name, - vlist->vers_num); - /* free the memory ??*/ - } - scan(TOK_SEMICOLON, &tok); - scan2(TOK_VERSION, TOK_RBRACE, &tok); - } while (tok.kind == TOK_VERSION); - scan(TOK_EQUAL, &tok); - scan_num(&tok); - defp->def.pr.prog_num = tok.str; - *vtailp = NULL; + token tok; + declaration dec; + decl_list *decls; + decl_list **tailp; + version_list *vlist; + version_list **vtailp; + proc_list *plist; + proc_list **ptailp; + int num_args; + bool_t isvoid = FALSE; /* whether first argument is void */ + defp->def_kind = DEF_PROGRAM; + scan (TOK_IDENT, &tok); + defp->def_name = tok.str; + scan (TOK_LBRACE, &tok); + vtailp = &defp->def.pr.versions; + tailp = &defp->def.st.decls; + scan (TOK_VERSION, &tok); + do + { + scan (TOK_IDENT, &tok); + vlist = ALLOC (version_list); + vlist->vers_name = tok.str; + scan (TOK_LBRACE, &tok); + ptailp = &vlist->procs; + do + { + /* get result type */ + plist = ALLOC (proc_list); + get_type (&plist->res_prefix, &plist->res_type, + DEF_PROGRAM); + if (streq (plist->res_type, "opaque")) + { + error ("illegal result type"); + } + scan (TOK_IDENT, &tok); + plist->proc_name = tok.str; + scan (TOK_LPAREN, &tok); + /* get args - first one */ + num_args = 1; + isvoid = FALSE; + /* type of DEF_PROGRAM in the first + * get_prog_declaration and DEF_STURCT in the next + * allows void as argument if it is the only argument + */ + get_prog_declaration (&dec, DEF_PROGRAM, num_args); + if (streq (dec.type, "void")) + isvoid = TRUE; + decls = ALLOC (decl_list); + plist->args.decls = decls; + decls->decl = dec; + tailp = &decls->next; + /* get args */ + while (peekscan (TOK_COMMA, &tok)) + { + num_args++; + get_prog_declaration (&dec, DEF_STRUCT, + num_args); + decls = ALLOC (decl_list); + decls->decl = dec; + *tailp = decls; + if (streq (dec.type, "void")) + isvoid = TRUE; + tailp = &decls->next; + } + /* multiple arguments are only allowed in newstyle */ + if (!newstyle && num_args > 1) + { + error ("only one argument is allowed"); + } + if (isvoid && num_args > 1) + { + error ("illegal use of void in program definition"); + } + *tailp = NULL; + scan (TOK_RPAREN, &tok); + scan (TOK_EQUAL, &tok); + scan_num (&tok); + scan (TOK_SEMICOLON, &tok); + plist->proc_num = tok.str; + plist->arg_num = num_args; + *ptailp = plist; + ptailp = &plist->next; + peek (&tok); + } + while (tok.kind != TOK_RBRACE); + *ptailp = NULL; + *vtailp = vlist; + vtailp = &vlist->next; + scan (TOK_RBRACE, &tok); + scan (TOK_EQUAL, &tok); + scan_num (&tok); + vlist->vers_num = tok.str; + /* make the argument structure name for each arg */ + for (plist = vlist->procs; plist != NULL; + plist = plist->next) + { + plist->args.argname = make_argname (plist->proc_name, + vlist->vers_num); + /* free the memory ?? */ + } + scan (TOK_SEMICOLON, &tok); + scan2 (TOK_VERSION, TOK_RBRACE, &tok); + } + while (tok.kind == TOK_VERSION); + scan (TOK_EQUAL, &tok); + scan_num (&tok); + defp->def.pr.prog_num = tok.str; + *vtailp = NULL; } static void -def_enum(definition *defp) +def_enum (definition * defp) { - token tok; - enumval_list *elist; - enumval_list **tailp; - - defp->def_kind = DEF_ENUM; - scan(TOK_IDENT, &tok); - defp->def_name = tok.str; - scan(TOK_LBRACE, &tok); - tailp = &defp->def.en.vals; - do { - scan(TOK_IDENT, &tok); - elist = ALLOC(enumval_list); - elist->name = tok.str; - elist->assignment = NULL; - scan3(TOK_COMMA, TOK_RBRACE, TOK_EQUAL, &tok); - if (tok.kind == TOK_EQUAL) { - scan_num(&tok); - elist->assignment = tok.str; - scan2(TOK_COMMA, TOK_RBRACE, &tok); - } - *tailp = elist; - tailp = &elist->next; - } while (tok.kind != TOK_RBRACE); - *tailp = NULL; + token tok; + enumval_list *elist; + enumval_list **tailp; + + defp->def_kind = DEF_ENUM; + scan (TOK_IDENT, &tok); + defp->def_name = tok.str; + scan (TOK_LBRACE, &tok); + tailp = &defp->def.en.vals; + do + { + scan (TOK_IDENT, &tok); + elist = ALLOC (enumval_list); + elist->name = tok.str; + elist->assignment = NULL; + scan3 (TOK_COMMA, TOK_RBRACE, TOK_EQUAL, &tok); + if (tok.kind == TOK_EQUAL) + { + scan_num (&tok); + elist->assignment = tok.str; + scan2 (TOK_COMMA, TOK_RBRACE, &tok); + } + *tailp = elist; + tailp = &elist->next; + } + while (tok.kind != TOK_RBRACE); + *tailp = NULL; } static void -def_const(definition *defp) +def_const (definition * defp) { - token tok; - - defp->def_kind = DEF_CONST; - scan(TOK_IDENT, &tok); - defp->def_name = tok.str; - scan(TOK_EQUAL, &tok); - scan2(TOK_IDENT, TOK_STRCONST, &tok); - defp->def.co = tok.str; + token tok; + + defp->def_kind = DEF_CONST; + scan (TOK_IDENT, &tok); + defp->def_name = tok.str; + scan (TOK_EQUAL, &tok); + scan2 (TOK_IDENT, TOK_STRCONST, &tok); + defp->def.co = tok.str; } static void -def_union(definition *defp) +def_union (definition *defp) { token tok; declaration dec; @@ -292,67 +307,71 @@ def_union(definition *defp) int flag; defp->def_kind = DEF_UNION; - scan(TOK_IDENT, &tok); + scan (TOK_IDENT, &tok); defp->def_name = tok.str; - scan(TOK_SWITCH, &tok); - scan(TOK_LPAREN, &tok); - get_declaration(&dec, DEF_UNION); + scan (TOK_SWITCH, &tok); + scan (TOK_LPAREN, &tok); + get_declaration (&dec, DEF_UNION); defp->def.un.enum_decl = dec; tailp = &defp->def.un.cases; - scan(TOK_RPAREN, &tok); - scan(TOK_LBRACE, &tok); - scan(TOK_CASE, &tok); - while (tok.kind == TOK_CASE) { - scan2(TOK_IDENT, TOK_CHARCONST, &tok); - cases = ALLOC(case_list); - cases->case_name = tok.str; - scan(TOK_COLON, &tok); - /* now peek at next token */ - flag=0; - if(peekscan(TOK_CASE,&tok)) - { - - do - { - scan2(TOK_IDENT, TOK_CHARCONST, &tok); - cases->contflag=1; /* continued case statement */ - *tailp = cases; - tailp = &cases->next; - cases = ALLOC(case_list); - cases->case_name = tok.str; - scan(TOK_COLON, &tok); - - }while(peekscan(TOK_CASE,&tok)); - } - else - if(flag) + scan (TOK_RPAREN, &tok); + scan (TOK_LBRACE, &tok); + scan (TOK_CASE, &tok); + while (tok.kind == TOK_CASE) + { + scan2 (TOK_IDENT, TOK_CHARCONST, &tok); + cases = ALLOC (case_list); + cases->case_name = tok.str; + scan (TOK_COLON, &tok); + /* now peek at next token */ + flag = 0; + if (peekscan (TOK_CASE, &tok)) + { + + do + { + scan2 (TOK_IDENT, TOK_CHARCONST, &tok); + cases->contflag = 1; /* continued case statement */ + *tailp = cases; + tailp = &cases->next; + cases = ALLOC (case_list); + cases->case_name = tok.str; + scan (TOK_COLON, &tok); + + } + while (peekscan (TOK_CASE, &tok)); + } + else if (flag) { *tailp = cases; tailp = &cases->next; - cases = ALLOC(case_list); + cases = ALLOC (case_list); }; - get_declaration(&dec, DEF_UNION); - cases->case_decl = dec; - cases->contflag=0; /* no continued case statement */ - *tailp = cases; - tailp = &cases->next; - scan(TOK_SEMICOLON, &tok); + get_declaration (&dec, DEF_UNION); + cases->case_decl = dec; + cases->contflag = 0; /* no continued case statement */ + *tailp = cases; + tailp = &cases->next; + scan (TOK_SEMICOLON, &tok); - scan3(TOK_CASE, TOK_DEFAULT, TOK_RBRACE, &tok); - } + scan3 (TOK_CASE, TOK_DEFAULT, TOK_RBRACE, &tok); + } *tailp = NULL; - if (tok.kind == TOK_DEFAULT) { - scan(TOK_COLON, &tok); - get_declaration(&dec, DEF_UNION); - defp->def.un.default_decl = ALLOC(declaration); - *defp->def.un.default_decl = dec; - scan(TOK_SEMICOLON, &tok); - scan(TOK_RBRACE, &tok); - } else { - defp->def.un.default_decl = NULL; - } + if (tok.kind == TOK_DEFAULT) + { + scan (TOK_COLON, &tok); + get_declaration (&dec, DEF_UNION); + defp->def.un.default_decl = ALLOC (declaration); + *defp->def.un.default_decl = dec; + scan (TOK_SEMICOLON, &tok); + scan (TOK_RBRACE, &tok); + } + else + { + defp->def.un.default_decl = NULL; + } } static const char *reserved_words[] = @@ -370,253 +389,287 @@ static const char *reserved_words[] = "union", "vector", NULL - }; +}; static const char *reserved_types[] = { "opaque", "string", NULL - }; +}; /* * check that the given name is not one that would eventually result in - * xdr routines that would conflict with internal XDR routines. + * xdr routines that would conflict with internal XDR routines. */ -static void check_type_name(const char *name, int new_type) +static void +check_type_name (const char *name, int new_type) { int i; char tmp[100]; - for( i = 0; reserved_words[i] != NULL; i++ ) { - if( strcmp( name, reserved_words[i] ) == 0 ) { - sprintf(tmp, - "illegal (reserved) name :\'%s\' in type definition", name ); - error(tmp); + for (i = 0; reserved_words[i] != NULL; i++) + { + if (strcmp (name, reserved_words[i]) == 0) + { + sprintf (tmp, + "illegal (reserved) name :\'%s\' in type definition", name); + error (tmp); + } } - } - if( new_type ) { - for( i = 0; reserved_types[i] != NULL; i++ ) { - if( strcmp( name, reserved_types[i] ) == 0 ) { - sprintf(tmp, - "illegal (reserved) name :\'%s\' in type definition", name ); - error(tmp); - } + if (new_type) + { + for (i = 0; reserved_types[i] != NULL; i++) + { + if (strcmp (name, reserved_types[i]) == 0) + { + sprintf (tmp, + "illegal (reserved) name :\'%s\' in type definition", name); + error (tmp); + } + } } - } } static void -def_typedef(definition *defp) +def_typedef (definition * defp) { - declaration dec; - - defp->def_kind = DEF_TYPEDEF; - get_declaration(&dec, DEF_TYPEDEF); - defp->def_name = dec.name; - check_type_name(dec.name, 1); - defp->def.ty.old_prefix = dec.prefix; - defp->def.ty.old_type = dec.type; - defp->def.ty.rel = dec.rel; - defp->def.ty.array_max = dec.array_max; + declaration dec; + + defp->def_kind = DEF_TYPEDEF; + get_declaration (&dec, DEF_TYPEDEF); + defp->def_name = dec.name; + check_type_name (dec.name, 1); + defp->def.ty.old_prefix = dec.prefix; + defp->def.ty.old_type = dec.type; + defp->def.ty.rel = dec.rel; + defp->def.ty.array_max = dec.array_max; } static void -get_declaration(declaration *dec, defkind dkind) +get_declaration (declaration * dec, defkind dkind) { - token tok; + token tok; - get_type(&dec->prefix, &dec->type, dkind); - dec->rel = REL_ALIAS; - if (streq(dec->type, "void")) { - return; - } + get_type (&dec->prefix, &dec->type, dkind); + dec->rel = REL_ALIAS; + if (streq (dec->type, "void")) + { + return; + } - check_type_name(dec->type, 0); + check_type_name (dec->type, 0); - scan2(TOK_STAR, TOK_IDENT, &tok); - if (tok.kind == TOK_STAR) { - dec->rel = REL_POINTER; - scan(TOK_IDENT, &tok); + scan2 (TOK_STAR, TOK_IDENT, &tok); + if (tok.kind == TOK_STAR) + { + dec->rel = REL_POINTER; + scan (TOK_IDENT, &tok); + } + dec->name = tok.str; + if (peekscan (TOK_LBRACKET, &tok)) + { + if (dec->rel == REL_POINTER) + { + error ("no array-of-pointer declarations -- use typedef"); } - dec->name = tok.str; - if (peekscan(TOK_LBRACKET, &tok)) { - if (dec->rel == REL_POINTER) { - error("no array-of-pointer declarations -- use typedef"); - } - dec->rel = REL_VECTOR; - scan_num(&tok); - dec->array_max = tok.str; - scan(TOK_RBRACKET, &tok); - } else if (peekscan(TOK_LANGLE, &tok)) { - if (dec->rel == REL_POINTER) { - error("no array-of-pointer declarations -- use typedef"); - } - dec->rel = REL_ARRAY; - if (peekscan(TOK_RANGLE, &tok)) { - dec->array_max = "~0"; /* unspecified size, use max */ - } else { - scan_num(&tok); - dec->array_max = tok.str; - scan(TOK_RANGLE, &tok); - } + dec->rel = REL_VECTOR; + scan_num (&tok); + dec->array_max = tok.str; + scan (TOK_RBRACKET, &tok); + } + else if (peekscan (TOK_LANGLE, &tok)) + { + if (dec->rel == REL_POINTER) + { + error ("no array-of-pointer declarations -- use typedef"); } - if (streq(dec->type, "opaque")) { - if (dec->rel != REL_ARRAY && dec->rel != REL_VECTOR) { - error("array declaration expected"); - } - } else if (streq(dec->type, "string")) { - if (dec->rel != REL_ARRAY) { - error("variable-length array declaration expected"); - } + dec->rel = REL_ARRAY; + if (peekscan (TOK_RANGLE, &tok)) + { + dec->array_max = "~0"; /* unspecified size, use max */ } + else + { + scan_num (&tok); + dec->array_max = tok.str; + scan (TOK_RANGLE, &tok); + } + } + if (streq (dec->type, "opaque")) + { + if (dec->rel != REL_ARRAY && dec->rel != REL_VECTOR) + { + error ("array declaration expected"); + } + } + else if (streq (dec->type, "string")) + { + if (dec->rel != REL_ARRAY) + { + error ("variable-length array declaration expected"); + } + } } - static void -get_prog_declaration(declaration *dec, defkind dkind, int num /* arg number */) +get_prog_declaration (declaration * dec, defkind dkind, int num /* arg number */ ) { - token tok; - char name[10]; /* argument name */ - - if (dkind == DEF_PROGRAM) { - peek(&tok); - if (tok.kind == TOK_RPAREN) { /* no arguments */ - dec->rel = REL_ALIAS; - dec->type = "void"; - dec->prefix = NULL; - dec->name = NULL; - return; - } - } - get_type(&dec->prefix, &dec->type, dkind); - dec->rel = REL_ALIAS; - if (peekscan(TOK_IDENT, &tok)) /* optional name of argument */ - strcpy(name, tok.str); - else - sprintf(name, "%s%d", ARGNAME, num); /* default name of argument */ - - dec->name = (char *) strdup(name); - - if (streq(dec->type, "void")) { - return; + token tok; + char name[10]; /* argument name */ + + if (dkind == DEF_PROGRAM) + { + peek (&tok); + if (tok.kind == TOK_RPAREN) + { /* no arguments */ + dec->rel = REL_ALIAS; + dec->type = "void"; + dec->prefix = NULL; + dec->name = NULL; + return; } + } + get_type (&dec->prefix, &dec->type, dkind); + dec->rel = REL_ALIAS; + if (peekscan (TOK_IDENT, &tok)) /* optional name of argument */ + strcpy (name, tok.str); + else + sprintf (name, "%s%d", ARGNAME, num); /* default name of argument */ + + dec->name = (char *) strdup (name); + + if (streq (dec->type, "void")) + { + return; + } - if (streq(dec->type, "opaque")) { - error("opaque -- illegal argument type"); + if (streq (dec->type, "opaque")) + { + error ("opaque -- illegal argument type"); + } + if (peekscan (TOK_STAR, &tok)) + { + if (streq (dec->type, "string")) + { + error ("pointer to string not allowed in program arguments\n"); } - if (peekscan(TOK_STAR, &tok)) { - if (streq(dec->type, "string")) { - error("pointer to string not allowed in program arguments\n"); - } - dec->rel = REL_POINTER; - if (peekscan(TOK_IDENT, &tok)) /* optional name of argument */ - dec->name = strdup(tok.str); - } - if (peekscan(TOK_LANGLE, &tok)) { - if (!streq(dec->type, "string")) { - error("arrays cannot be declared as arguments to procedures -- use typedef"); - } - dec->rel = REL_ARRAY; - if (peekscan(TOK_RANGLE, &tok)) { - dec->array_max = "~0";/* unspecified size, use max */ - } else { - scan_num(&tok); - dec->array_max = tok.str; - scan(TOK_RANGLE, &tok); - } + dec->rel = REL_POINTER; + if (peekscan (TOK_IDENT, &tok)) /* optional name of argument */ + dec->name = strdup (tok.str); + } + if (peekscan (TOK_LANGLE, &tok)) + { + if (!streq (dec->type, "string")) + { + error ("arrays cannot be declared as arguments to procedures -- use typedef"); + } + dec->rel = REL_ARRAY; + if (peekscan (TOK_RANGLE, &tok)) + { + dec->array_max = "~0"; /* unspecified size, use max */ } - if (streq(dec->type, "string")) { - if (dec->rel != REL_ARRAY) { /* .x specifies just string as - * type of argument - * - make it string<> - */ - dec->rel = REL_ARRAY; - dec->array_max = "~0";/* unspecified size, use max */ - } + else + { + scan_num (&tok); + dec->array_max = tok.str; + scan (TOK_RANGLE, &tok); + } + } + if (streq (dec->type, "string")) + { + if (dec->rel != REL_ARRAY) + { /* .x specifies just string as + * type of argument + * - make it string<> + */ + dec->rel = REL_ARRAY; + dec->array_max = "~0"; /* unspecified size, use max */ } + } } - - static void -get_type(const char **prefixp, const char **typep, defkind dkind) +get_type (const char **prefixp, const char **typep, defkind dkind) { - token tok; - - *prefixp = NULL; - get_token(&tok); - switch (tok.kind) { - case TOK_IDENT: - *typep = tok.str; - break; - case TOK_STRUCT: - case TOK_ENUM: - case TOK_UNION: - *prefixp = tok.str; - scan(TOK_IDENT, &tok); - *typep = tok.str; - break; - case TOK_UNSIGNED: - unsigned_dec(typep); - break; - case TOK_SHORT: - *typep = "short"; - (void) peekscan(TOK_INT, &tok); - break; - case TOK_LONG: - *typep = "long"; - (void) peekscan(TOK_INT, &tok); - break; - case TOK_VOID: - if (dkind != DEF_UNION && dkind != DEF_PROGRAM) { - error("voids allowed only inside union and program definitions with one argument"); - } - *typep = tok.str; - break; - case TOK_STRING: - case TOK_OPAQUE: - case TOK_CHAR: - case TOK_INT: - case TOK_FLOAT: - case TOK_DOUBLE: - case TOK_BOOL: - *typep = tok.str; - break; - default: - error("expected type specifier"); + token tok; + + *prefixp = NULL; + get_token (&tok); + switch (tok.kind) + { + case TOK_IDENT: + *typep = tok.str; + break; + case TOK_STRUCT: + case TOK_ENUM: + case TOK_UNION: + *prefixp = tok.str; + scan (TOK_IDENT, &tok); + *typep = tok.str; + break; + case TOK_UNSIGNED: + unsigned_dec (typep); + break; + case TOK_SHORT: + *typep = "short"; + (void) peekscan (TOK_INT, &tok); + break; + case TOK_LONG: + *typep = "long"; + (void) peekscan (TOK_INT, &tok); + break; + case TOK_VOID: + if (dkind != DEF_UNION && dkind != DEF_PROGRAM) + { + error ("voids allowed only inside union and program definitions with one argument"); } + *typep = tok.str; + break; + case TOK_STRING: + case TOK_OPAQUE: + case TOK_CHAR: + case TOK_INT: + case TOK_FLOAT: + case TOK_DOUBLE: + case TOK_BOOL: + *typep = tok.str; + break; + default: + error ("expected type specifier"); + } } static void -unsigned_dec(const char **typep) +unsigned_dec (const char **typep) { - token tok; - - peek(&tok); - switch (tok.kind) { - case TOK_CHAR: - get_token(&tok); - *typep = "u_char"; - break; - case TOK_SHORT: - get_token(&tok); - *typep = "u_short"; - (void) peekscan(TOK_INT, &tok); - break; - case TOK_LONG: - get_token(&tok); - *typep = "u_long"; - (void) peekscan(TOK_INT, &tok); - break; - case TOK_INT: - get_token(&tok); - *typep = "u_int"; - break; - default: - *typep = "u_int"; - break; - } + token tok; + + peek (&tok); + switch (tok.kind) + { + case TOK_CHAR: + get_token (&tok); + *typep = "u_char"; + break; + case TOK_SHORT: + get_token (&tok); + *typep = "u_short"; + (void) peekscan (TOK_INT, &tok); + break; + case TOK_LONG: + get_token (&tok); + *typep = "u_long"; + (void) peekscan (TOK_INT, &tok); + break; + case TOK_INT: + get_token (&tok); + *typep = "u_int"; + break; + default: + *typep = "u_int"; + break; + } } |