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Annotation of OpenXM_contrib2/asir2000/parse/stdio.c, Revision 1.2

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
        !            26:  * e-mail at risa-admin@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: OpenXM_contrib2/asir2000/parse/stdio.c,v 1.1.1.1 1999/12/03 07:39:12 noro Exp $
        !            49: */
1.1       noro       50: #include <stdio.h>
                     51: #include <stdlib.h>
                     52: #include <string.h>
                     53: #include <stdarg.h>
                     54: #include "w_stdio.h"
                     55:
                     56: static struct w_buf {
                     57:   int inlen, inpos;
                     58:   int outpos;
                     59:   char inbuf[2*BUFSIZ];
                     60:   char outbuf[2*BUFSIZ];
                     61: } W_BUF;
                     62:
                     63: static int noflush;
                     64:
                     65: #define INBUF_EMPTY (W_BUF.inpos >= W_BUF.inlen)
                     66:
                     67: int w_filbuf(void)
                     68: {
                     69:   int status = get_line(W_BUF.inbuf);
                     70:   W_BUF.inpos = 0;
                     71:   W_BUF.inlen = strlen(W_BUF.inbuf);
                     72:   return status;
                     73: }
                     74:
                     75: int w_flushbuf(void) {
                     76:   W_BUF.outbuf[W_BUF.outpos] = 0;
                     77:   W_BUF.outpos = 0;
                     78:   put_line(W_BUF.outbuf);
                     79:   return 0;
                     80: }
                     81:
                     82: int w_fflush(FILE *file)
                     83: {
                     84:   if ( file == stdout || file == stderr )
                     85:     return w_flushbuf();
                     86:   else
                     87:     return fflush(file);
                     88: }
                     89:
                     90: void w_noflush_stderr(int flag)
                     91: {
                     92:   noflush = flag;
                     93: }
                     94:
                     95: int get_char(void)
                     96: {
                     97:   int status = 0;
                     98:
                     99:   if ( INBUF_EMPTY )
                    100:     status = w_filbuf();
                    101:   if ( status )
                    102:     return EOF;
                    103:   else
                    104:     return (int)W_BUF.inbuf[W_BUF.inpos++];
                    105: }
                    106:
                    107: char *get_string(char *s, int n)
                    108: {
                    109:   int i;
                    110:   char *p;
                    111:   int status = 0;
                    112:
                    113:   if ( INBUF_EMPTY )
                    114:     status = w_filbuf();
                    115:   if ( status )
                    116:     return NULL;
                    117:   for ( i = 0, p = s; i < n && !INBUF_EMPTY && W_BUF.inbuf[i]; i++ )
                    118:     *p++ = W_BUF.inbuf[W_BUF.inpos++];
                    119:   if ( i < n )
                    120:    *p = 0;
                    121:   return s;
                    122: }
                    123:
                    124: int w_fgetc(FILE *file)
                    125: {
                    126:   if ( file == stdin )
                    127:     return get_char();
                    128:   else
                    129:     return fgetc(file);
                    130: }
                    131:
                    132: int unget_char(int c)
                    133: {
                    134:   W_BUF.inbuf[--W_BUF.inpos] = (char )c;
                    135:   return c;
                    136: }
                    137:
                    138: int put_char(int c,FILE *file)
                    139: {
                    140:   static char s[2];
                    141:
                    142:   s[0] = (char)c;
                    143:   put_string(s,file);
                    144:   return c;
                    145: }
                    146:
                    147: int put_string(char *s,FILE *file)
                    148: {
                    149:   char c;
                    150:
                    151:   while ( 1 ) {
                    152:     for ( ; (c = *s) && W_BUF.outpos < BUFSIZ; s++ ) {
                    153:       W_BUF.outbuf[W_BUF.outpos++] = c;
                    154:       if ( c == '\n' ) {
                    155:         W_BUF.outbuf[W_BUF.outpos-1] = '\r';
                    156:         W_BUF.outbuf[W_BUF.outpos++] = '\n';
                    157:         w_flushbuf();
                    158:       }
                    159:     }
                    160:     if ( !c )
                    161:       break;
                    162:     else if ( W_BUF.outpos == BUFSIZ )
                    163:       w_flushbuf();
                    164:   }
                    165:   if (file == stderr && !noflush)
                    166:       w_flushbuf();
                    167:   return 0;
                    168: }
                    169:
                    170: char *w_fgets(char *s,int n, FILE *file)
                    171: {
                    172:   if ( file == stdin )
                    173:     return get_string(s,n);
                    174:   else
                    175:     return fgets(s,n,file);
                    176: }
                    177:
                    178: int w_ungetc(int c, FILE *file)
                    179: {
                    180:   if ( file == stdin )
                    181:     return unget_char(c);
                    182:   else
                    183:     return ungetc(c,file);
                    184: }
                    185:
                    186: int w_fputc(int c, FILE *file)
                    187: {
                    188:   if ( file == stdout || file == stderr )
                    189:     return put_char(c,file);
                    190:   else
                    191:     return fputc(c,file);
                    192: }
                    193:
                    194: int w_fputs(char *s, FILE *file)
                    195: {
                    196:   int status;
                    197:
                    198:   if ( file == stdout || file == stderr )
                    199:     return put_string(s,file);
                    200:   else
                    201:     return fputs(s,file);
                    202: }
                    203:
                    204: int w_printf(char *format, ...)
                    205: {
                    206:   va_list ap;
                    207:   int status;
                    208:   char buf[BUFSIZ];
                    209:
                    210:   va_start(ap,format);
                    211:   status = vsprintf(buf,format,ap);
                    212:   put_string(buf,stdout);
                    213:   return status;
                    214: }
                    215:
                    216: int w_fprintf(FILE *file, char *format, ...)
                    217: {
                    218:   va_list ap;
                    219:   int status;
                    220:   char buf[BUFSIZ];
                    221:
                    222:   va_start(ap,format);
                    223:   if ( file == stdout || file == stderr ) {
                    224:     status = vsprintf(buf,format,ap);
                    225:     put_string(buf,file);
                    226:   } else {
                    227:     status = vfprintf(file,format,ap);
                    228:   }
                    229:   va_end(ap);
                    230:   return status;
                    231: }

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