Annotation of OpenXM_contrib2/asir2000/parse/parser.c, Revision 1.6
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: *
1.6 ! saito 48: * $OpenXM: OpenXM_contrib2/asir2000/parse/parser.c,v 1.5 2002/12/09 00:42:15 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:
60: int mainparse(snodep)
61: SNODE *snodep;
62: {
63: int ret;
64:
65: main_parser = 1;
66: ret = yyparse();
67: *snodep = parse_snode;
68: return ret;
69: }
70:
71: int exprparse(f,str,exprp)
72: FUNC f;
73: char *str;
74: FNODE *exprp;
75: {
76: char buf0[BUFSIZ];
77: char *buf;
78: int i,n;
79: char c;
80:
81:
82: n = strlen(str);
83: if ( n >= BUFSIZ )
84: buf = (char *)ALLOCA(n+1);
85: else
86: buf = buf0;
87: for ( i = 0; ; i++, str++ ) {
88: c = *str;
89: if ( !c || c == '\n' ) {
90: buf[i] = ';'; buf[i+1] = 0; break;
91: } else
92: buf[i] = c;
93: }
94: parse_strp = buf;
95: parse_targetf = f;
96: main_parser = 0;
1.5 noro 97: allow_create_var = 0;
98: if ( yyparse() || !parse_snode || parse_snode->id != S_SINGLE ) {
99: *exprp = 0; return 0;
100: } else {
101: *exprp = (FNODE)FA0(parse_snode); return 1;
102: }
103: }
104:
105: /* allows to create a new variable */
106:
107: int exprparse_create_var(f,str,exprp)
108: FUNC f;
109: char *str;
110: FNODE *exprp;
111: {
112: char buf0[BUFSIZ];
113: char *buf;
114: int i,n;
115: char c;
116:
117:
118: n = strlen(str);
119: if ( n >= BUFSIZ )
120: buf = (char *)ALLOCA(n+1);
121: else
122: buf = buf0;
123: for ( i = 0; ; i++, str++ ) {
124: c = *str;
125: if ( !c || c == '\n' ) {
126: buf[i] = ';'; buf[i+1] = 0; break;
127: } else
128: buf[i] = c;
129: }
130: parse_strp = buf;
131: parse_targetf = f;
132: main_parser = 0;
133: allow_create_var = 1;
1.1 noro 134: if ( yyparse() || !parse_snode || parse_snode->id != S_SINGLE ) {
135: *exprp = 0; return 0;
136: } else {
137: *exprp = (FNODE)FA0(parse_snode); return 1;
138: }
139: }
140:
1.4 noro 141: extern FUNC user_print_function;
142:
1.1 noro 143: void read_eval_loop() {
144: struct oEGT egt0,egt1;
145: extern int prtime,prresult,ox_do_copy;
146: SNODE snode;
147: double r0,r1;
148: double get_rtime();
149: extern Obj LastVal;
150:
151: LastVal = 0;
152: while ( 1 ) {
153: mainparse(&snode);
154: nextbp = 0;
155: get_eg(&egt0);
156: r0 = get_rtime();
157: LastVal = evalstat(snode);
158: storeans(LastVal);
159: get_eg(&egt1);
160: r1 = get_rtime();
161: if ( !ox_do_copy ) {
162: if ( prresult ) {
1.4 noro 163: if ( user_print_function )
164: bevalf(user_print_function,mknode(1,LastVal));
165: else
166: printexpr(CO,LastVal);
1.6 ! saito 167: if ( outputstyle == 1 ) {
! 168: putc(';',asir_out);
! 169: }
1.4 noro 170: putc('\n',asir_out);
1.1 noro 171: fflush(asir_out);
172: }
173: if ( prtime ) {
174: printtime(&egt0,&egt1,r1-r0);
175: }
176: prompt();
177: }
178: }
179: }
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