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bae7117f WH |
1 | #include "f2c.h" |
2 | #include "fio.h" | |
3 | #include "fmt.h" | |
4 | ||
5 | y_rsk(Void) | |
6 | { | |
7 | if(f__curunit->uend || f__curunit->url <= f__recpos | |
8 | || f__curunit->url == 1) return 0; | |
9 | do { | |
10 | getc(f__cf); | |
11 | } while(++f__recpos < f__curunit->url); | |
12 | return 0; | |
13 | } | |
14 | y_getc(Void) | |
15 | { | |
16 | int ch; | |
17 | if(f__curunit->uend) return(-1); | |
18 | if((ch=getc(f__cf))!=EOF) | |
19 | { | |
20 | f__recpos++; | |
21 | if(f__curunit->url>=f__recpos || | |
22 | f__curunit->url==1) | |
23 | return(ch); | |
24 | else return(' '); | |
25 | } | |
26 | if(feof(f__cf)) | |
27 | { | |
28 | f__curunit->uend=1; | |
29 | errno=0; | |
30 | return(-1); | |
31 | } | |
32 | err(f__elist->cierr,errno,"readingd"); | |
33 | #ifdef __cplusplus | |
34 | return 0; | |
35 | #endif | |
36 | } | |
37 | #ifdef KR_headers | |
38 | y_putc(c) | |
39 | #else | |
40 | y_putc(int c) | |
41 | #endif | |
42 | { | |
43 | f__recpos++; | |
44 | if(f__recpos <= f__curunit->url || f__curunit->url==1) | |
45 | putc(c,f__cf); | |
46 | else | |
47 | err(f__elist->cierr,110,"dout"); | |
48 | return(0); | |
49 | } | |
50 | y_rev(Void) | |
51 | { /*what about work done?*/ | |
52 | if(f__curunit->url==1 || f__recpos==f__curunit->url) | |
53 | return(0); | |
54 | while(f__recpos<f__curunit->url) | |
55 | (*f__putn)(' '); | |
56 | f__recpos=0; | |
57 | return(0); | |
58 | } | |
59 | y_err(Void) | |
60 | { | |
61 | err(f__elist->cierr, 110, "dfe"); | |
62 | #ifdef __cplusplus | |
63 | return 0; | |
64 | #endif | |
65 | } | |
66 | ||
67 | y_newrec(Void) | |
68 | { | |
69 | if(f__curunit->url == 1 || f__recpos == f__curunit->url) { | |
70 | f__hiwater = f__recpos = f__cursor = 0; | |
71 | return(1); | |
72 | } | |
73 | if(f__hiwater > f__recpos) | |
74 | f__recpos = f__hiwater; | |
75 | y_rev(); | |
76 | f__hiwater = f__cursor = 0; | |
77 | return(1); | |
78 | } | |
79 | ||
80 | #ifdef KR_headers | |
81 | c_dfe(a) cilist *a; | |
82 | #else | |
83 | c_dfe(cilist *a) | |
84 | #endif | |
85 | { | |
86 | f__sequential=0; | |
87 | f__formatted=f__external=1; | |
88 | f__elist=a; | |
89 | f__cursor=f__scale=f__recpos=0; | |
90 | if(a->ciunit>MXUNIT || a->ciunit<0) | |
91 | err(a->cierr,101,"startchk"); | |
92 | f__curunit = &f__units[a->ciunit]; | |
93 | if(f__curunit->ufd==NULL && fk_open(DIR,FMT,a->ciunit)) | |
94 | err(a->cierr,104,"dfe"); | |
95 | f__cf=f__curunit->ufd; | |
96 | if(!f__curunit->ufmt) err(a->cierr,102,"dfe") | |
97 | if(!f__curunit->useek) err(a->cierr,104,"dfe") | |
98 | f__fmtbuf=a->cifmt; | |
99 | (void) fseek(f__cf,(long)f__curunit->url * (a->cirec-1),SEEK_SET); | |
100 | f__curunit->uend = 0; | |
101 | return(0); | |
102 | } | |
103 | #ifdef KR_headers | |
104 | integer s_rdfe(a) cilist *a; | |
105 | #else | |
106 | integer s_rdfe(cilist *a) | |
107 | #endif | |
108 | { | |
109 | int n; | |
110 | if(!f__init) f_init(); | |
111 | if(n=c_dfe(a))return(n); | |
112 | f__reading=1; | |
113 | if(f__curunit->uwrt && f__nowreading(f__curunit)) | |
114 | err(a->cierr,errno,"read start"); | |
115 | f__getn = y_getc; | |
116 | f__doed = rd_ed; | |
117 | f__doned = rd_ned; | |
118 | f__dorevert = f__donewrec = y_err; | |
119 | f__doend = y_rsk; | |
120 | if(pars_f(f__fmtbuf)<0) | |
121 | err(a->cierr,100,"read start"); | |
122 | fmt_bg(); | |
123 | return(0); | |
124 | } | |
125 | #ifdef KR_headers | |
126 | integer s_wdfe(a) cilist *a; | |
127 | #else | |
128 | integer s_wdfe(cilist *a) | |
129 | #endif | |
130 | { | |
131 | int n; | |
132 | if(!f__init) f_init(); | |
133 | if(n=c_dfe(a)) return(n); | |
134 | f__reading=0; | |
135 | if(f__curunit->uwrt != 1 && f__nowwriting(f__curunit)) | |
136 | err(a->cierr,errno,"startwrt"); | |
137 | f__putn = y_putc; | |
138 | f__doed = w_ed; | |
139 | f__doned= w_ned; | |
140 | f__dorevert = y_err; | |
141 | f__donewrec = y_newrec; | |
142 | f__doend = y_rev; | |
143 | if(pars_f(f__fmtbuf)<0) | |
144 | err(a->cierr,100,"startwrt"); | |
145 | fmt_bg(); | |
146 | return(0); | |
147 | } | |
148 | integer e_rdfe(Void) | |
149 | { | |
150 | (void) en_fio(); | |
151 | return(0); | |
152 | } | |
153 | integer e_wdfe(Void) | |
154 | { | |
155 | (void) en_fio(); | |
156 | return(0); | |
157 | } |