Subversion Repositories tendra.SVN

Rev

Rev 2 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | RSS feed

/*
                 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.
*/


#include "config.h"
#include "release.h"
#include "types.h"
#include "read_types.h"
#include "analyser.h"
#include "check.h"
#include "de_types.h"
#include "de_capsule.h"
#include "enc_cap.h"
#include "eval.h"
#include "file.h"
#include "help.h"
#include "node.h"
#include "read_cap.h"
#include "shape.h"
#include "tdf.h"
#include "table.h"
#include "utility.h"
#include "write.h"


/*
    PROGRAM VERSION

    The program name and version number are given.
*/

char *progname = "tnc" ;
static char *version = "Version: 1.9" ;


/*
    PROCESS AN OUTPUT OPTION

    The show option corresponding to arg is set to t.
*/

static boolean output_option
    PROTO_N ( ( arg, t ) )
    PROTO_T ( char *arg X boolean t )
{
    boolean *p = null ;
    if ( streq ( arg, "tokdecs" ) ) {
        p = &show_tokdecs ;
    } else if ( streq ( arg, "tokdefs" ) ) {
        p = &show_tokdefs ;
    } else if ( streq ( arg, "aldecs" ) ) {
        p = &show_aldecs ;
    } else if ( streq ( arg, "aldefs" ) ) {
        p = &show_aldefs ;
    } else if ( streq ( arg, "tagdecs" ) ) {
        p = &show_tagdecs ;
    } else if ( streq ( arg, "tagdefs" ) ) {
        p = &show_tagdefs ;
    }
    if ( p == null ) return ( 0 ) ;
    if ( t ) {
        show_tokdecs = 0 ;
        show_tokdefs = 0 ;
        show_aldefs = 0 ;
        show_tagdecs = 0 ;
        show_tagdefs = 0 ;
    }
    *p = t ;
    return ( 1 ) ;
}


/*
    MAIN ROUTINE

    This is the main routine.  It processes the command line arguments
    and calls the appropriate input and output routines.
*/

int main
    PROTO_N ( ( argc, argv ) )
    PROTO_T ( int argc X char **argv )
{
    int a ;
    int status = 0 ;
    boolean expand = 0 ;
    boolean evaluate = 0 ;
    boolean lib_input = 0 ;
    boolean output_next = 0 ;
    void ( *input_fn ) PROTO_S ( ( void ) ) ;
    void ( *output_fn ) PROTO_S ( ( void ) ) ;

    /* Default action : read text, encode TDF capsule */
    input_fn = read_capsule ;
    output_fn = enc_capsule ;
    text_input = 1 ;
    text_output = 0 ;

    /* Initialize internal tables */
    output = stdout ;
    init_tables () ;
    init_constructs () ;

    /* Scan arguments */
    for ( a = 1 ; a < argc ; a++ ) {
        char *arg = argv [a] ;
        if ( output_next ) {
            open_output ( arg ) ;
            output_next = 0 ;
        } else if ( *arg == '-' ) {
            boolean known = 0 ;
            switch ( arg [1] ) {
                case 'h' : {
                    /* Help option */
                    if ( streq ( arg, "-help" ) ) {
                        if ( status ) warning ( "Too many arguments" ) ;
                        a++ ;
                        if ( a == argc ) {
                            help ( "all" ) ;
                        } else {
                            while ( a < argc ) {
                                help ( argv [a] ) ;
                                a++ ;
                            }
                        }
                        exit ( exit_status ) ;
                    }
                    break ;
                }
                case 'd' : {
                    if ( arg [2] == 0 || streq ( arg, "-decode" ) ) {
                        /* Decode mode */
                        input_fn = de_capsule ;
                        text_input = 0 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'e' : {
                    if ( arg [2] == 0 || streq ( arg, "-encode" ) ) {
                        /* Encode mode */
                        output_fn = enc_capsule ;
                        text_output = 0 ;
                        known = 1 ;
                    } else if ( streq ( arg, "-eval" ) ) {
                        evaluate = 1 ;
                        known = 1 ;
                    } else if ( streq ( arg, "-expand" ) ) {
                        expand = 1 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'r' : {
                    if ( arg [2] == 0 || streq ( arg, "-read" ) ) {
                        /* Read mode */
                        input_fn = read_capsule ;
                        text_input = 1 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'w' : {
                    if ( arg [2] == 0 || streq ( arg, "-write" ) ) {
                        /* Write mode */
                        output_fn = print_capsule ;
                        text_output = 1 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'p' : {
                    if ( arg [2] == 0 || streq ( arg, "-print" ) ) {
                        /* Pretty printer mode */
                        input_fn = de_capsule ;
                        output_fn = print_capsule ;
                        text_input = 0 ;
                        text_output = 1 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 't' : {
                    if ( arg [2] == 0 || streq ( arg, "-tsimp" ) ) {
                        /* Expand token definitions */
                        evaluate = 1 ;
                        expand = 1 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'c' : {
                    if ( arg [2] == 0 || streq ( arg, "-check" ) ) {
                        /* Switch on shape checking */
                        init_shapes () ;
                        do_check = 1 ;
                        known = 1 ;
                    } else if ( streq ( arg, "-cv" ) ) {
                        init_shapes () ;
                        do_check = 1 ;
                        print_shapes = 1 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'l' : {
                    if ( arg [2] == 0 || streq ( arg, "-lib" ) ) {
                        lib_input = 1 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'f' : {
                    if ( arg [2] == 0 || streq ( arg, "-func" ) ) {
                        /* Check on form of input and output */
                        func_input = 1 ;
                        func_output = 1 ;
                        known = 1 ;
                    } else if ( streq ( arg, "-func_out" ) ) {
                        func_output = 1 ;
                        known = 1 ;
                    } else if ( streq ( arg, "-func_in" ) ) {
                        func_input = 1 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'n' : {
                    if ( strncmp ( arg, "-no_", 4 ) == 0 ) {
                        known = output_option ( arg + 4, 0 ) ;
                    }
                    break ;
                }
                case 'o' : {
                    if ( arg [2] == 0 ) {
                        output_next = 1 ;
                        known = 1 ;
                    } else if ( strncmp ( arg, "-only_", 6 ) == 0 ) {
                        known = output_option ( arg + 6, 1 ) ;
                    }
                    break ;
                }
                case 'q' : {
                    if ( arg [2] == 0 ) {
                        dont_check = 1 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'u' : {
                    if ( arg [2] == 0 || streq ( arg, "-unsorted" ) ) {
                        order_names = 0 ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'v' : {
                    if ( arg [2] == 0 || streq ( arg, "-version" ) ) {
                        char *vn = version ;
                        char *rn = RELEASE ;
                        int v1 = VERSION_major ;
                        int v2 = VERSION_minor ;
                        IGNORE fprintf ( stderr, "%s: %s", progname, vn ) ;
                        IGNORE fprintf ( stderr, " (TDF %d.%d)", v1, v2 ) ;
                        IGNORE fprintf ( stderr, " (release %s)\n", rn ) ;
                        known = 1 ;
                    }
                    break ;
                }
                case 'I' : {
                    add_directory ( arg + 2 ) ;
                    known = 1 ;
                    break ;
                }
                case 'L' : {
                    local_prefix = arg + 2 ;
                    known = 1 ;
                    break ;
                }
                case 'V' : {
                    if ( arg [2] == 0 ) {
                        verbose = 1 ;
                        known = 1 ;
                    }
                    break ;
                }
            }
            if ( !known ) warning ( "Unknown option, %s", arg ) ;

        } else {
            /* Initialize input and output files */
            if ( status == 0 ) {
                open_input ( arg, 0 ) ;
            } else if ( status == 1 ) {
                open_output ( arg ) ;
            } else {
                warning ( "Too many arguments" ) ;
            }
            status++ ;
        }
    }

    /* Check on library input */
    if ( lib_input && input_fn == de_capsule ) input_fn = de_library ;

    /* Perform the appropriate actions */
    if ( status == 0 ) fatal_error ( "Not enough arguments" ) ;
    ( *input_fn ) () ;
    if ( exit_status == EXIT_SUCCESS || text_output ) {
        if ( expand ) expand_all () ;
        if ( evaluate ) eval_all () ;
        sort_all () ;
        ( *output_fn ) () ;
    }
    return ( exit_status ) ;
}