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Annotation of OpenXM_contrib2/asir2000/builtin/help.c, Revision 1.4

1.3       noro        1: /*
                      2:  * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED
                      3:  * All rights reserved.
                      4:  *
                      5:  * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
                      6:  * non-exclusive and royalty-free license to use, copy, modify and
                      7:  * redistribute, solely for non-commercial and non-profit purposes, the
                      8:  * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
                      9:  * conditions of this Agreement. For the avoidance of doubt, you acquire
                     10:  * only a limited right to use the SOFTWARE hereunder, and FLL or any
                     11:  * third party developer retains all rights, including but not limited to
                     12:  * copyrights, in and to the SOFTWARE.
                     13:  *
                     14:  * (1) FLL does not grant you a license in any way for commercial
                     15:  * purposes. You may use the SOFTWARE only for non-commercial and
                     16:  * non-profit purposes only, such as academic, research and internal
                     17:  * business use.
                     18:  * (2) The SOFTWARE is protected by the Copyright Law of Japan and
                     19:  * international copyright treaties. If you make copies of the SOFTWARE,
                     20:  * with or without modification, as permitted hereunder, you shall affix
                     21:  * to all such copies of the SOFTWARE the above copyright notice.
                     22:  * (3) An explicit reference to this SOFTWARE and its copyright owner
                     23:  * shall be made on your publication or presentation in any form of the
                     24:  * results obtained by use of the SOFTWARE.
                     25:  * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
1.4     ! noro       26:  * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
1.3       noro       27:  * for such modification or the source code of the modified part of the
                     28:  * SOFTWARE.
                     29:  *
                     30:  * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
                     31:  * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
                     32:  * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
                     33:  * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
                     34:  * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
                     35:  * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
                     36:  * UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,
                     37:  * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
                     38:  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
                     39:  * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
                     40:  * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
                     41:  * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
                     42:  * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
                     43:  * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
                     44:  * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
                     45:  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
                     46:  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
                     47:  *
1.4     ! noro       48:  * $OpenXM: OpenXM_contrib2/asir2000/builtin/help.c,v 1.3 2000/08/21 08:31:20 noro Exp $
1.3       noro       49: */
1.1       noro       50: #include "ca.h"
                     51: #include "parse.h"
                     52:
                     53: void Phelp();
                     54: void ghelp(void);
                     55:
                     56: struct ftab help_tab[] = {
                     57:        {"help",Phelp,-1},
                     58:        {0,0,0},
                     59: };
                     60:
                     61: void Phelp(arg,rp)
                     62: NODE arg;
                     63: Obj *rp;
                     64: {
                     65:        if ( !arg || !ARG0(arg) )
                     66:                 help(0);
                     67:        else
                     68:                switch (OID(ARG0(arg))) {
                     69:                        case O_P:
                     70:                                help(NAME(VR((P)ARG0(arg))));
                     71:                                break;
                     72:                        case O_STR:
                     73:                                help(BDY((STRING)ARG0(arg)));
                     74:                                break;
                     75:                        default:
                     76:                                break;
                     77:                }
                     78:        *rp = 0;
                     79: }
                     80:
                     81: static char *ghelpstr[] = {
                     82: "<expression> ';'  : eval and print",
                     83: "<expression> '$'  : eval",
                     84: "end (quit)        : close the current input stream",
                     85: "debug             : enter the debug mode",
                     86: 0
                     87: };
                     88:
                     89: void help(s)
                     90: char *s;
                     91: {
                     92:        extern char *asir_libdir;
                     93:        extern char *asir_pager;
1.2       noro       94:        char *e;
                     95:        static char helpdir[16];
                     96:
                     97:        if ( !helpdir[0] ) {
                     98:                e = (char *)getenv("LANG");
                     99:                if ( !e )
                    100:                        strcpy(helpdir,"help");
                    101:                else if ( !strncmp(e,"japan",strlen("japan"))
                    102:                        || !strncmp(e,"ja_JP",strlen("ja_JP")) )
                    103:                        strcpy(helpdir,"help-jp");
                    104:                else
                    105:                        strcpy(helpdir,"help-eg");
                    106:        }
1.1       noro      107:
                    108:        if ( !s )
                    109:                ghelp();
                    110:        else {
                    111: #if !defined(VISUAL)
                    112:                int i;
                    113:                FUNC f;
                    114:                char name[BUFSIZ],com[BUFSIZ];
                    115:                FILE *fp;
                    116:
1.2       noro      117:                sprintf(name,"%s/%s/%s",asir_libdir,helpdir,s);
1.1       noro      118:                if ( fp = fopen(name,"r") ) {
                    119:                        fclose(fp);
                    120:                        sprintf(com,"%s %s",asir_pager,name);
                    121:                        system(com);
                    122:                } else {
                    123:                        searchf(usrf,s,&f);
                    124:                        if ( f && f->f.usrf->desc )
                    125:                                fprintf(stderr,"%s\n",f->f.usrf->desc);
                    126:                }
                    127: #endif
                    128:        }
                    129: }
                    130:
                    131: void ghelp() {
                    132:        int i;
                    133:
                    134:        for ( i = 0; ghelpstr[i]; i++ )
                    135:                fprintf(stderr,"%s\n",ghelpstr[i]);
                    136: }