%{ /* COPYRIGHT Copyright 1992, 1993, 1994 Sun Microsystems, Inc. Printed in the United States of America. All Rights Reserved. This product is protected by copyright and distributed under the following license restricting its use. The Interface Definition Language Compiler Front End (CFE) is made available for your use provided that you include this license and copyright notice on all media and documentation and the software program in which this product is incorporated in whole or part. You may copy and extend functionality (but may not remove functionality) of the Interface Definition Language CFE without charge, but you are not authorized to license or distribute it to anyone else except as part of a product or program developed by you or with the express written consent of Sun Microsystems, Inc. ("Sun"). The names of Sun Microsystems, Inc. and any of its subsidiaries or affiliates may not be used in advertising or publicity pertaining to distribution of Interface Definition Language CFE as permitted herein. This license is effective until terminated by Sun for failure to comply with this license. Upon termination, you shall destroy or return all code and documentation for the Interface Definition Language CFE. INTERFACE DEFINITION LANGUAGE CFE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. INTERFACE DEFINITION LANGUAGE CFE IS PROVIDED WITH NO SUPPORT AND WITHOUT ANY OBLIGATION ON THE PART OF Sun OR ANY OF ITS SUBSIDIARIES OR AFFILIATES TO ASSIST IN ITS USE, CORRECTION, MODIFICATION OR ENHANCEMENT. SUN OR ANY OF ITS SUBSIDIARIES OR AFFILIATES SHALL HAVE NO LIABILITY WITH RESPECT TO THE INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY INTERFACE DEFINITION LANGUAGE CFE OR ANY PART THEREOF. IN NO EVENT WILL SUN OR ANY OF ITS SUBSIDIARIES OR AFFILIATES BE LIABLE FOR ANY LOST REVENUE OR PROFITS OR OTHER SPECIAL, INDIRECT AND CONSEQUENTIAL DAMAGES, EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Use, duplication, or disclosure by the government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 and FAR 52.227-19. Sun, Sun Microsystems and the Sun logo are trademarks or registered trademarks of Sun Microsystems, Inc. SunSoft, Inc. 2550 Garcia Avenue Mountain View, California 94043 NOTE: SunOS, SunSoft, Sun, Solaris, Sun Microsystems or the Sun logo are trademarks or registered trademarks of Sun Microsystems, Inc. */ /* * idl.ll - Lexical scanner for IDL 1.1 */ #include "idl.h" #include "idl_extern.h" #include "fe_private.h" #include "y.tab.h" #include static char idl_escape_reader(char *); static double idl_atof(char *); static long idl_atoi(char *, long); static void idl_parse_line_and_file(char *); static void idl_store_pragma(char *); // HPUX has yytext typed to unsigned char *. We make sure here that // we'll always use char * static char *__yytext = (char *) yytext; %} %% any return ANY; module return MODULE; raises return RAISES; readonly return READONLY; attribute return ATTRIBUTE; exception return EXCEPTION; context return CONTEXT; interface return INTERFACE; const return CONST; typedef return TYPEDEF; struct return STRUCT; enum return ENUM; string return STRING; wstring_t return WSTRING; sequence return SEQUENCE; union return UNION; switch return SWITCH; case return CASE; default return DEFAULT; float return FLOAT; double return DOUBLE; long return LONG; short return SHORT; unsigned return UNSIGNED; char return CHAR; wchar_t return WCHAR; boolean return BOOLEAN; octet return OCTET; void return VOID; TRUE return TRUETOK; FALSE return FALSETOK; inout return INOUT; in return IN; out return OUT; oneway return ONEWAY; \<\< return LEFT_SHIFT; \>\> return RIGHT_SHIFT; \:\: { yylval.strval = "::"; return SCOPE_DELIMITOR; } [a-zA-Z][a-zA-Z0-9_]* { char *z = (char *) malloc(strlen(__yytext) + 1); strcpy(z, __yytext); yylval.strval = z; return IDENTIFIER; } -?[0-9]+"."[0-9]*([eE][+-]?[0-9]+)?[lLfF]? { yylval.dval = idl_atof(__yytext); return FLOATING_PT_LITERAL; } -?[0-9]+[eE][+-]?[0-9]+[lLfF]? { yylval.dval = idl_atof(__yytext); return FLOATING_PT_LITERAL; } -?[1-9][0-9]* { yylval.ival = idl_atoi(__yytext, 10); return INTEGER_LITERAL; } -?0[xX][a-fA-F0-9]+ { yylval.ival = idl_atoi(__yytext, 16); return INTEGER_LITERAL; } -?0[0-7]* { yylval.ival = idl_atoi(__yytext, 8); return INTEGER_LITERAL; } "\""[^\"]*"\"" { __yytext[strlen(__yytext)-1] = '\0'; yylval.sval = new String(__yytext + 1); return STRING_LITERAL; } "'"."'" { yylval.cval = __yytext[1]; return CHARACTER_LITERAL; } "'"\\([0-7]{1,3})"'" { // octal character constant yylval.cval = idl_escape_reader(__yytext + 1); return CHARACTER_LITERAL; } "'"\\."'" { yylval.cval = idl_escape_reader(__yytext + 1); return CHARACTER_LITERAL; } ^#[ \t]*pragma[ \t].*\n {/* remember pragma */ idl_global->set_lineno(idl_global->lineno() + 1); idl_store_pragma(__yytext); } ^#[ \t]*[0-9]*" ""\""[^\"]*"\""" "[0-9]*\n { idl_parse_line_and_file(__yytext); } ^#[ \t]*[0-9]*" ""\""[^\"]*"\""\n { idl_parse_line_and_file(__yytext); } ^#[ \t]*[0-9]*\n { idl_parse_line_and_file(__yytext); } ^#[ \t]*ident.*\n { /* ignore cpp ident */ idl_global->set_lineno(idl_global->lineno() + 1); } \/\/.*\n { /* ignore comments */ idl_global->set_lineno(idl_global->lineno() + 1); } "/*" { for(;;) { char c = yyinput(); if (c == '*') { char next = yyinput(); if (next == '/') break; else yyunput(c, NULL); if (c == '\n') idl_global->set_lineno(idl_global->lineno() + 1); } } } [ \t]* ; \n { idl_global->set_lineno(idl_global->lineno() + 1); } . return __yytext[0]; %% /* subroutines */ /* * Strip down a name to the last component, i.e. everything after the last * '/' character */ static char * stripped_name(UTL_String *fn) { char *n = fn->get_string(); long l; if (n == NULL) return NULL; l = strlen(n); for (n += l; l > 0 && *n != '/'; l--, n--); if (*n == '/') n++; return n; } /* * Parse a #line statement generated by the C preprocessor */ static void idl_parse_line_and_file(char *buf) { char *r = buf; char *h; UTL_String *nm; /* Skip initial '#' */ if (*r != '#') { return; } /* Find line number */ for (r++; *r == ' ' || *r == '\t'; r++); h = r; for (; *r != '\0' && *r != ' ' && *r != '\t'; r++); *r++ = 0; idl_global->set_lineno(idl_atoi(h, 10)); /* Find file name, if present */ for (; *r != '"'; r++) { if (*r == '\n' || *r == '\0') return; } h = ++r; for (; *r != '"'; r++); *r = 0; if (*h == '\0') idl_global->set_filename(new String("standard input")); else idl_global->set_filename(new String(h)); idl_global->set_in_main_file( (idl_global->filename()->compare(idl_global->real_filename())) ? I_TRUE : I_FALSE ); /* * If it's an import file store the stripped name for the BE to use */ if (!(idl_global->in_main_file()) && idl_global->import()) { nm = new UTL_String(stripped_name(idl_global->filename())); idl_global->store_include_file_name(nm); } } /* * Store a #pragma line into the list of pragmas */ static void idl_store_pragma(char *buf) { char *cp = buf + 1; while(*cp != 'p') cp++; while(*cp != ' ' && *cp != '\t') cp++; while(*cp == ' ' || *cp == '\t') cp++; char pragma[80]; char *pp = pragma; while(*cp != '\n') { *pp++ = *cp++; } *pp = 0; if (strcmp(pragma, "import") == 0) { idl_global->set_import(I_TRUE); return; } if (strcmp(pragma, "include") == 0) { idl_global->set_import(I_FALSE); return; } UTL_StrList *p = idl_global->pragmas(); if (p == NULL) idl_global->set_pragmas(new UTL_StrList(new String(buf), NULL)); else { p->nconc(new UTL_StrList(new String(buf), NULL)); idl_global->set_pragmas(p); } } /* * idl_atoi - Convert a string of digits into an integer according to base b */ static long idl_atoi(char *s, long b) { long r = 0; long negative = 0; if (*s == '-') { negative = 1; s++; } if (b == 8 && *s == '0') s++; else if (b == 16 && *s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X')) s += 2; for (; *s; s++) if (*s <= '9' && *s >= '0') r = (r * b) + (*s - '0'); else if (b > 10 && *s <= 'f' && *s >= 'a') r = (r * b) + (*s - 'a' + 10); else if (b > 10 && *s <= 'F' && *s >= 'A') r = (r * b) + (*s - 'A' + 10); else break; if (negative) r *= -1; return r; } /* * Convert a string to a float; atof doesn't seem to work, always. */ static double idl_atof(char *s) { char *h = s; double d = 0.0; double f = 0.0; double e, k; long neg = 0, negexp = 0; ACE_UNUSED_ARG (f); ACE_UNUSED_ARG (h); if (*s == '-') { neg = 1; s++; } while (*s >= '0' && *s <= '9') { d = (d * 10) + *s - '0'; s++; } if (*s == '.') { s++; e = 10; while (*s >= '0' && *s <= '9') { d += (*s - '0') / (e * 1.0); e *= 10; s++; } } if (*s == 'e' || *s == 'E') { s++; if (*s == '-') { negexp = 1; s++; } else if (*s == '+') s++; e = 0; while (*s >= '0' && *s <= '9') { e = (e * 10) + *s - '0'; s++; } if (e > 0) { for (k = 1; e > 0; k *= 10, e--); if (negexp) d /= k; else d *= k; } } if (neg) d *= -1.0; return d; } /* * Convert (some) escaped characters into their ascii values */ static char idl_escape_reader( char *str ) { if (str[0] != '\\') { return str[0]; } switch (str[1]) { case 'n': return '\n'; case 't': return '\t'; case 'v': return '\v'; case 'b': return '\b'; case 'r': return '\r'; case 'f': return '\f'; case 'a': return '\a'; case '\\': return '\\'; case '\?': return '?'; case '\'': return '\''; case '"': return '"'; case 'x': { // hex value for (int i = 2; str[i] != '\0' && isxdigit(str[i]); i++) { continue; } char save = str[i]; str[i] = '\0'; char out = (char)idl_atoi(&str[2], 16); str[i] = save; return out; } break; default: // check for octal value if (str[1] >= '0' && str[1] <= '7') { for (int i = 1; str[i] >= '0' && str[i] <= '7'; i++) { continue; } char save = str[i]; str[i] = '\0'; char out = (char)idl_atoi(&str[1], 8); str[i] = save; return out; } else { return str[1] - 'a'; } break; } }