Annotation of OpenXM_contrib2/asir2018/parse/parser.c, Revision 1.1
1.1 ! 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
! 26: * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
! 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: *
! 48: * $OpenXM$
! 49: */
! 50: #include <ctype.h>
! 51: #include "ca.h"
! 52: #include "parse.h"
! 53:
! 54: extern int main_parser, allow_create_var;
! 55: extern char *parse_strp;
! 56: extern SNODE parse_snode;
! 57: extern FUNC parse_targetf;
! 58: extern int outputstyle;
! 59:
! 60: int mainparse(SNODE *snodep)
! 61: {
! 62: int ret;
! 63:
! 64: main_parser = 1;
! 65: ret = yyparse();
! 66: *snodep = parse_snode;
! 67: return ret;
! 68: }
! 69:
! 70: int exprparse(FUNC f,char *str,FNODE *exprp)
! 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;
! 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 */
! 102: /* returns SNODE */
! 103:
! 104: int exprparse_create_var(FUNC f,char *str,SNODE *statp)
! 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;
! 128: #if 0
! 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: }
! 134: #else
! 135: if ( yyparse() || !parse_snode ) {
! 136: *statp = 0; return 0;
! 137: } else {
! 138: *statp = parse_snode; return 1;
! 139: }
! 140: #endif
! 141: }
! 142:
! 143: extern FUNC user_print_function;
! 144: extern int f_break,f_continue,f_return;
! 145:
! 146: void read_eval_loop() {
! 147: struct oEGT egt0,egt1;
! 148: extern int prtime,prresult,ox_do_copy;
! 149: SNODE snode;
! 150: double r0,r1;
! 151: double get_rtime();
! 152: extern Obj LastVal;
! 153:
! 154: LastVal = 0;
! 155: while ( 1 ) {
! 156: mainparse(&snode);
! 157: nextbp = 0;
! 158: get_eg(&egt0);
! 159: r0 = get_rtime();
! 160: LastVal = evalstat(snode);
! 161: f_break = f_continue = f_return = 0;
! 162: storeans(LastVal);
! 163: get_eg(&egt1);
! 164: r1 = get_rtime();
! 165: if ( !ox_do_copy ) {
! 166: if ( prresult ) {
! 167: if ( user_print_function ) {
! 168: bevalf(user_print_function,mknode(1,LastVal));
! 169: #if !defined(__MINGW32__)
! 170: fflush(asir_out);
! 171: #endif
! 172: } else
! 173: printexpr(CO,LastVal);
! 174: if ( outputstyle == 1 ) {
! 175: putc(';',asir_out);
! 176: }
! 177: putc('\n',asir_out);
! 178: #if !defined(__MINGW32__)
! 179: fflush(asir_out);
! 180: #endif
! 181: }
! 182: if ( prtime ) {
! 183: printtime(&egt0,&egt1,r1-r0);
! 184: }
! 185: #if defined(__MINGW32__)
! 186: fflush(asir_out);
! 187: fflush(stderr);
! 188: #endif
! 189: prompt();
! 190: }
! 191: }
! 192: }
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