Annotation of OpenXM_contrib2/asir2000/parse/parser.c, Revision 1.9
1.2 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
1.3 noro 26: * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
1.2 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: *
1.9 ! noro 48: * $OpenXM: OpenXM_contrib2/asir2000/parse/parser.c,v 1.8 2004/12/17 03:09:08 noro Exp $
1.2 noro 49: */
1.1 noro 50: #include <ctype.h>
51: #include "ca.h"
52: #include "parse.h"
53:
1.5 noro 54: extern int main_parser, allow_create_var;
1.1 noro 55: extern char *parse_strp;
56: extern SNODE parse_snode;
57: extern FUNC parse_targetf;
1.6 saito 58: extern int outputstyle;
1.1 noro 59:
1.9 ! noro 60: int mainparse(SNODE *snodep)
1.1 noro 61: {
62: int ret;
63:
64: main_parser = 1;
65: ret = yyparse();
66: *snodep = parse_snode;
67: return ret;
68: }
69:
1.9 ! noro 70: int exprparse(FUNC f,char *str,FNODE *exprp)
1.1 noro 71: {
72: char buf0[BUFSIZ];
73: char *buf;
74: int i,n;
75: char c;
76:
77:
78: n = strlen(str);
79: if ( n >= BUFSIZ )
80: buf = (char *)ALLOCA(n+1);
81: else
82: buf = buf0;
83: for ( i = 0; ; i++, str++ ) {
84: c = *str;
85: if ( !c || c == '\n' ) {
86: buf[i] = ';'; buf[i+1] = 0; break;
87: } else
88: buf[i] = c;
89: }
90: parse_strp = buf;
91: parse_targetf = f;
92: main_parser = 0;
1.5 noro 93: allow_create_var = 0;
94: if ( yyparse() || !parse_snode || parse_snode->id != S_SINGLE ) {
95: *exprp = 0; return 0;
96: } else {
97: *exprp = (FNODE)FA0(parse_snode); return 1;
98: }
99: }
100:
101: /* allows to create a new variable */
1.9 ! noro 102: /* returns SNODE */
1.5 noro 103:
1.9 ! noro 104: int exprparse_create_var(FUNC f,char *str,SNODE *statp)
1.5 noro 105: {
106: char buf0[BUFSIZ];
107: char *buf;
108: int i,n;
109: char c;
110:
111:
112: n = strlen(str);
113: if ( n >= BUFSIZ )
114: buf = (char *)ALLOCA(n+1);
115: else
116: buf = buf0;
117: for ( i = 0; ; i++, str++ ) {
118: c = *str;
119: if ( !c || c == '\n' ) {
120: buf[i] = ';'; buf[i+1] = 0; break;
121: } else
122: buf[i] = c;
123: }
124: parse_strp = buf;
125: parse_targetf = f;
126: main_parser = 0;
127: allow_create_var = 1;
1.9 ! noro 128: #if 0
1.1 noro 129: if ( yyparse() || !parse_snode || parse_snode->id != S_SINGLE ) {
130: *exprp = 0; return 0;
131: } else {
132: *exprp = (FNODE)FA0(parse_snode); return 1;
133: }
1.9 ! noro 134: #else
! 135: if ( yyparse() || !parse_snode ) {
! 136: *statp = 0; return 0;
! 137: } else {
! 138: *statp = parse_snode; return 1;
! 139: }
! 140: #endif
1.1 noro 141: }
142:
1.4 noro 143: extern FUNC user_print_function;
144:
1.1 noro 145: void read_eval_loop() {
146: struct oEGT egt0,egt1;
147: extern int prtime,prresult,ox_do_copy;
148: SNODE snode;
149: double r0,r1;
150: double get_rtime();
151: extern Obj LastVal;
152:
153: LastVal = 0;
154: while ( 1 ) {
155: mainparse(&snode);
156: nextbp = 0;
157: get_eg(&egt0);
158: r0 = get_rtime();
159: LastVal = evalstat(snode);
160: storeans(LastVal);
161: get_eg(&egt1);
162: r1 = get_rtime();
163: if ( !ox_do_copy ) {
164: if ( prresult ) {
1.7 noro 165: if ( user_print_function ) {
1.4 noro 166: bevalf(user_print_function,mknode(1,LastVal));
1.7 noro 167: fflush(asir_out);
168: } else
1.4 noro 169: printexpr(CO,LastVal);
1.6 saito 170: if ( outputstyle == 1 ) {
171: putc(';',asir_out);
172: }
1.4 noro 173: putc('\n',asir_out);
1.1 noro 174: fflush(asir_out);
175: }
176: if ( prtime ) {
177: printtime(&egt0,&egt1,r1-r0);
178: }
179: prompt();
180: }
181: }
182: }
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