diff options
Diffstat (limited to 'sunrpc/rpc_scan.c')
| -rw-r--r-- | sunrpc/rpc_scan.c | 764 |
1 files changed, 412 insertions, 352 deletions
diff --git a/sunrpc/rpc_scan.c b/sunrpc/rpc_scan.c index c0293a3316..acffab2a89 100644 --- a/sunrpc/rpc_scan.c +++ b/sunrpc/rpc_scan.c @@ -31,12 +31,12 @@ /* * From: @(#)rpc_scan.c 1.11 89/02/22 (C) 1987 SMI */ -char scan_rcsid[] = +char scan_rcsid[] = "$Id$"; /* - * rpc_scan.c, Scanner for the RPC protocol compiler - * Copyright (C) 1987, Sun Microsystems, Inc. + * rpc_scan.c, Scanner for the RPC protocol compiler + * Copyright (C) 1987, Sun Microsystems, Inc. */ #include <stdio.h> #include <ctype.h> @@ -49,439 +49,499 @@ char scan_rcsid[] = #define startcomment(where) (where[0] == '/' && where[1] == '*') #define endcomment(where) (where[-1] == '*' && where[0] == '/') -static int pushed = 0; /* is a token pushed */ -static token lasttok; /* last token, if pushed */ +static int pushed = 0; /* is a token pushed */ +static token lasttok; /* last token, if pushed */ -static void unget_token(token *tokp); -static void findstrconst(const char **str, const char **val); -static void findchrconst(const char **str, const char **val); -static void findconst(const char **str, const char **val); -static void findkind(const char **mark, token *tokp); -static int cppline(const char *line); -static int directive(const char *line); -static void printdirective(const char *line); -static void docppline(const char *line, int *lineno, const char **fname); +static void unget_token (token * tokp); +static void findstrconst (const char **str, const char **val); +static void findchrconst (const char **str, const char **val); +static void findconst (const char **str, const char **val); +static void findkind (const char **mark, token * tokp); +static int cppline (const char *line); +static int directive (const char *line); +static void printdirective (const char *line); +static void docppline (const char *line, int *lineno, const char **fname); /* - * scan expecting 1 given token + * scan expecting 1 given token */ void -scan(tok_kind expect, token *tokp) +scan (tok_kind expect, token * tokp) { - get_token(tokp); - if (tokp->kind != expect) { - expected1(expect); - } + get_token (tokp); + if (tokp->kind != expect) + { + expected1 (expect); + } } /* - * scan expecting any of the 2 given tokens + * scan expecting any of the 2 given tokens */ void -scan2(tok_kind expect1, tok_kind expect2, token *tokp) +scan2 (tok_kind expect1, tok_kind expect2, token * tokp) { - get_token(tokp); - if (tokp->kind != expect1 && tokp->kind != expect2) { - expected2(expect1, expect2); - } + get_token (tokp); + if (tokp->kind != expect1 && tokp->kind != expect2) + { + expected2 (expect1, expect2); + } } /* - * scan expecting any of the 3 given token + * scan expecting any of the 3 given token */ void -scan3(tok_kind expect1, tok_kind expect2, tok_kind expect3, token *tokp) +scan3 (tok_kind expect1, tok_kind expect2, tok_kind expect3, token * tokp) { - get_token(tokp); - if (tokp->kind != expect1 && tokp->kind != expect2 - && tokp->kind != expect3) { - expected3(expect1, expect2, expect3); - } + get_token (tokp); + if (tokp->kind != expect1 && tokp->kind != expect2 + && tokp->kind != expect3) + { + expected3 (expect1, expect2, expect3); + } } /* - * scan expecting a constant, possibly symbolic + * scan expecting a constant, possibly symbolic */ void -scan_num(token *tokp) +scan_num (token * tokp) { - get_token(tokp); - switch (tokp->kind) { - case TOK_IDENT: - break; - default: - error("constant or identifier expected"); - } + get_token (tokp); + switch (tokp->kind) + { + case TOK_IDENT: + break; + default: + error ("constant or identifier expected"); + } } /* - * Peek at the next token + * Peek at the next token */ void -peek(token *tokp) +peek (token * tokp) { - get_token(tokp); - unget_token(tokp); + get_token (tokp); + unget_token (tokp); } /* - * Peek at the next token and scan it if it matches what you expect + * Peek at the next token and scan it if it matches what you expect */ int -peekscan(tok_kind expect, token *tokp) +peekscan (tok_kind expect, token * tokp) { - peek(tokp); - if (tokp->kind == expect) { - get_token(tokp); - return (1); - } - return (0); + peek (tokp); + if (tokp->kind == expect) + { + get_token (tokp); + return (1); + } + return (0); } /* - * Get the next token, printing out any directive that are encountered. + * Get the next token, printing out any directive that are encountered. */ void -get_token(token *tokp) +get_token (token * tokp) { - int commenting; - - if (pushed) { - pushed = 0; - *tokp = lasttok; - return; - } - commenting = 0; - for (;;) { - if (*where == 0) { - for (;;) { - if (!fgets(curline, MAXLINESIZE, fin)) { - tokp->kind = TOK_EOF; - *curline = 0; - where = curline; - return; - } - linenum++; - if (commenting) { - break; - } else if (cppline(curline)) { - docppline(curline, &linenum, - &infilename); - } else if (directive(curline)) { - printdirective(curline); - } else { - break; - } - } - where = curline; - } else if (isspace(*where)) { - while (isspace(*where)) { - where++; /* eat */ - } - } else if (commenting) { - for (where++; *where; where++) { - if (endcomment(where)) { - where++; - commenting--; - break; - } - } - } else if (startcomment(where)) { - where += 2; - commenting++; - } else { - break; + int commenting; + + if (pushed) + { + pushed = 0; + *tokp = lasttok; + return; + } + commenting = 0; + for (;;) + { + if (*where == 0) + { + for (;;) + { + if (!fgets (curline, MAXLINESIZE, fin)) + { + tokp->kind = TOK_EOF; + *curline = 0; + where = curline; + return; + } + linenum++; + if (commenting) + { + break; } + else if (cppline (curline)) + { + docppline (curline, &linenum, + &infilename); + } + else if (directive (curline)) + { + printdirective (curline); + } + else + { + break; + } + } + where = curline; } - - /* - * 'where' is not whitespace, comment or directive Must be a token! - */ - switch (*where) { - case ':': - tokp->kind = TOK_COLON; - where++; - break; - case ';': - tokp->kind = TOK_SEMICOLON; - where++; - break; - case ',': - tokp->kind = TOK_COMMA; - where++; - break; - case '=': - tokp->kind = TOK_EQUAL; - where++; - break; - case '*': - tokp->kind = TOK_STAR; - where++; - break; - case '[': - tokp->kind = TOK_LBRACKET; - where++; - break; - case ']': - tokp->kind = TOK_RBRACKET; - where++; - break; - case '{': - tokp->kind = TOK_LBRACE; - where++; - break; - case '}': - tokp->kind = TOK_RBRACE; - where++; - break; - case '(': - tokp->kind = TOK_LPAREN; - where++; - break; - case ')': - tokp->kind = TOK_RPAREN; - where++; - break; - case '<': - tokp->kind = TOK_LANGLE; - where++; - break; - case '>': - tokp->kind = TOK_RANGLE; - where++; - break; - - case '"': - tokp->kind = TOK_STRCONST; - findstrconst(&where, &tokp->str); - break; - case '\'': - tokp->kind = TOK_CHARCONST; - findchrconst(&where, &tokp->str); - break; - - case '-': - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - tokp->kind = TOK_IDENT; - findconst(&where, &tokp->str); - break; - - default: - if (!(isalpha(*where) || *where == '_')) { - char buf[100]; - char *p; - - s_print(buf, "illegal character in file: "); - p = buf + strlen(buf); - if (isprint(*where)) { - s_print(p, "%c", *where); - } else { - s_print(p, "%d", *where); - } - error(buf); + else if (isspace (*where)) + { + while (isspace (*where)) + { + where++; /* eat */ + } + } + else if (commenting) + { + for (where++; *where; where++) + { + if (endcomment (where)) + { + where++; + commenting--; + break; } - findkind(&where, tokp); - break; + } + } + else if (startcomment (where)) + { + where += 2; + commenting++; + } + else + { + break; } + } + + /* + * 'where' is not whitespace, comment or directive Must be a token! + */ + switch (*where) + { + case ':': + tokp->kind = TOK_COLON; + where++; + break; + case ';': + tokp->kind = TOK_SEMICOLON; + where++; + break; + case ',': + tokp->kind = TOK_COMMA; + where++; + break; + case '=': + tokp->kind = TOK_EQUAL; + where++; + break; + case '*': + tokp->kind = TOK_STAR; + where++; + break; + case '[': + tokp->kind = TOK_LBRACKET; + where++; + break; + case ']': + tokp->kind = TOK_RBRACKET; + where++; + break; + case '{': + tokp->kind = TOK_LBRACE; + where++; + break; + case '}': + tokp->kind = TOK_RBRACE; + where++; + break; + case '(': + tokp->kind = TOK_LPAREN; + where++; + break; + case ')': + tokp->kind = TOK_RPAREN; + where++; + break; + case '<': + tokp->kind = TOK_LANGLE; + where++; + break; + case '>': + tokp->kind = TOK_RANGLE; + where++; + break; + + case '"': + tokp->kind = TOK_STRCONST; + findstrconst (&where, &tokp->str); + break; + case '\'': + tokp->kind = TOK_CHARCONST; + findchrconst (&where, &tokp->str); + break; + + case '-': + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + tokp->kind = TOK_IDENT; + findconst (&where, &tokp->str); + break; + + default: + if (!(isalpha (*where) || *where == '_')) + { + char buf[100]; + char *p; + + s_print (buf, _("illegal character in file: ")); + p = buf + strlen (buf); + if (isprint (*where)) + { + s_print (p, "%c", *where); + } + else + { + s_print (p, "%d", *where); + } + error (buf); + } + findkind (&where, tokp); + break; + } } static void -unget_token(token *tokp) +unget_token (token * tokp) { - lasttok = *tokp; - pushed = 1; + lasttok = *tokp; + pushed = 1; } static void -findstrconst(const char **str, const char **val) +findstrconst (const char **str, const char **val) { - const char *p; - char *tmp; - int size; - - p = *str; - do { - p++; - } while (*p && *p != '"'); - if (*p == 0) { - error("unterminated string constant"); - } - p++; - size = p - *str; - tmp = alloc(size + 1); - strncpy(tmp, *str, size); - tmp[size] = 0; - *val = tmp; - *str = p; + const char *p; + char *tmp; + int size; + + p = *str; + do + { + p++; + } + while (*p && *p != '"'); + if (*p == 0) + { + error (_("unterminated string constant")); + } + p++; + size = p - *str; + tmp = alloc (size + 1); + strncpy (tmp, *str, size); + tmp[size] = 0; + *val = tmp; + *str = p; } static void -findchrconst(const char **str, const char **val) +findchrconst (const char **str, const char **val) { - const char *p; - char *tmp; - int size; - - p = *str; - do { - p++; - } while (*p && *p != '\''); - if (*p == 0) { - error("unterminated string constant"); - } - p++; - size = p - *str; - if (size != 3) { - error("empty char string"); - } - tmp = alloc(size + 1); - strncpy(tmp, *str, size); - tmp[size] = 0; - *val = tmp; - *str = p; + const char *p; + char *tmp; + int size; + + p = *str; + do + { + p++; + } + while (*p && *p != '\''); + if (*p == 0) + { + error (_("unterminated string constant")); + } + p++; + size = p - *str; + if (size != 3) + { + error (_("empty char string")); + } + tmp = alloc (size + 1); + strncpy (tmp, *str, size); + tmp[size] = 0; + *val = tmp; + *str = p; } static void -findconst(const char **str, const char **val) +findconst (const char **str, const char **val) { - const char *p; - char *tmp; - int size; - - p = *str; - if (*p == '0' && *(p + 1) == 'x') { - p++; - do { - p++; - } while (isxdigit(*p)); - } else { - do { - p++; - } while (isdigit(*p)); + const char *p; + char *tmp; + int size; + + p = *str; + if (*p == '0' && *(p + 1) == 'x') + { + p++; + do + { + p++; } - size = p - *str; - tmp = alloc(size + 1); - strncpy(tmp, *str, size); - tmp[size] = 0; - *val = tmp; - *str = p; + while (isxdigit (*p)); + } + else + { + do + { + p++; + } + while (isdigit (*p)); + } + size = p - *str; + tmp = alloc (size + 1); + strncpy (tmp, *str, size); + tmp[size] = 0; + *val = tmp; + *str = p; } -static token symbols[] = { - {TOK_CONST, "const"}, - {TOK_UNION, "union"}, - {TOK_SWITCH, "switch"}, - {TOK_CASE, "case"}, - {TOK_DEFAULT, "default"}, - {TOK_STRUCT, "struct"}, - {TOK_TYPEDEF, "typedef"}, - {TOK_ENUM, "enum"}, - {TOK_OPAQUE, "opaque"}, - {TOK_BOOL, "bool"}, - {TOK_VOID, "void"}, - {TOK_CHAR, "char"}, - {TOK_INT, "int"}, - {TOK_UNSIGNED, "unsigned"}, - {TOK_SHORT, "short"}, - {TOK_LONG, "long"}, - {TOK_FLOAT, "float"}, - {TOK_DOUBLE, "double"}, - {TOK_STRING, "string"}, - {TOK_PROGRAM, "program"}, - {TOK_VERSION, "version"}, - {TOK_EOF, "??????"}, +static const token symbols[] = +{ + {TOK_CONST, "const"}, + {TOK_UNION, "union"}, + {TOK_SWITCH, "switch"}, + {TOK_CASE, "case"}, + {TOK_DEFAULT, "default"}, + {TOK_STRUCT, "struct"}, + {TOK_TYPEDEF, "typedef"}, + {TOK_ENUM, "enum"}, + {TOK_OPAQUE, "opaque"}, + {TOK_BOOL, "bool"}, + {TOK_VOID, "void"}, + {TOK_CHAR, "char"}, + {TOK_INT, "int"}, + {TOK_UNSIGNED, "unsigned"}, + {TOK_SHORT, "short"}, + {TOK_LONG, "long"}, + {TOK_FLOAT, "float"}, + {TOK_DOUBLE, "double"}, + {TOK_STRING, "string"}, + {TOK_PROGRAM, "program"}, + {TOK_VERSION, "version"}, + {TOK_EOF, "??????"}, }; static void -findkind(const char **mark, token *tokp) +findkind (const char **mark, token * tokp) { - int len; - token *s; - const char *str; - char *tmp; - - str = *mark; - for (s = symbols; s->kind != TOK_EOF; s++) { - len = strlen(s->str); - if (strncmp(str, s->str, len) == 0) { - if (!isalnum(str[len]) && str[len] != '_') { - tokp->kind = s->kind; - tokp->str = s->str; - *mark = str + len; - return; - } - } + int len; + token *s; + const char *str; + char *tmp; + + str = *mark; + for (s = symbols; s->kind != TOK_EOF; s++) + { + len = strlen (s->str); + if (strncmp (str, s->str, len) == 0) + { + if (!isalnum (str[len]) && str[len] != '_') + { + tokp->kind = s->kind; + tokp->str = s->str; + *mark = str + len; + return; + } } - tokp->kind = TOK_IDENT; - for (len = 0; isalnum(str[len]) || str[len] == '_'; len++); - tmp = alloc(len + 1); - strncpy(tmp, str, len); - tmp[len] = 0; - tokp->str = tmp; - *mark = str + len; + } + tokp->kind = TOK_IDENT; + for (len = 0; isalnum (str[len]) || str[len] == '_'; len++); + tmp = alloc (len + 1); + strncpy (tmp, str, len); + tmp[len] = 0; + tokp->str = tmp; + *mark = str + len; } static int -cppline(const char *line) +cppline (const char *line) { - return (line == curline && *line == '#'); + return line == curline && *line == '#'; } static int -directive(const char *line) +directive (const char *line) { - return (line == curline && *line == '%'); + return line == curline && *line == '%'; } static void -printdirective(const char *line) +printdirective (const char *line) { - f_print(fout, "%s", line + 1); + f_print (fout, "%s", line + 1); } static void -docppline(const char *line, int *lineno, const char **fname) +docppline (const char *line, int *lineno, const char **fname) { - char *file; - int num; - char *p; - - line++; - while (isspace(*line)) { - line++; - } - num = atoi(line); - while (isdigit(*line)) { - line++; - } - while (isspace(*line)) { - line++; - } - if (*line != '"') { - error("preprocessor error"); - } - line++; - p = file = alloc(strlen(line) + 1); - while (*line && *line != '"') { - *p++ = *line++; - } - if (*line == 0) { - error("preprocessor error"); - } - *p = 0; - if (*file == 0) { - *fname = NULL; - } else { - *fname = file; - } - *lineno = num - 1; + char *file; + int num; + char *p; + + line++; + while (isspace (*line)) + { + line++; + } + num = atoi (line); + while (isdigit (*line)) + { + line++; + } + while (isspace (*line)) + { + line++; + } + if (*line != '"') + { + error (_("preprocessor error")); + } + line++; + p = file = alloc (strlen (line) + 1); + while (*line && *line != '"') + { + *p++ = *line++; + } + if (*line == 0) + { + error (_("preprocessor error")); + } + *p = 0; + if (*file == 0) + { + *fname = NULL; + } + else + { + *fname = file; + } + *lineno = num - 1; } |