1#ifdef HAVE_CONFIG_H
2# include "config.h"
3#endif
4
5#include <X11/Xos.h>
6#include <X11/IntrinsicP.h>
7#include <X11/StringDefs.h>
8#include <stdio.h>
9#include <ctype.h>
10#include "DviP.h"
11
12int
13DviGetAndPut(DviWidget dw, int *cp)
14{
15    if (dw->dvi.ungot) {
16        dw->dvi.ungot = 0;
17        *cp = getc(dw->dvi.file);
18    }
19    else {
20        *cp = getc(dw->dvi.file);
21        putc(*cp, dw->dvi.tmpFile);
22    }
23    return *cp;
24}
25
26char *
27GetLine(DviWidget dw, char *Buffer, int Length)
28{
29    int i = 0, c = 0;
30    char *p = Buffer;
31
32    Length--;                   /* Save room for final NULL */
33
34    while ((!p || i++ < Length) && DviGetC(dw, &c) != EOF && c != '\n') {
35        if (p)
36            *p++ = c;
37    }
38    if (c == '\n')
39        DviUngetC(dw, c);
40    if (p)
41        *p = '\0';
42    return (Buffer);
43}
44
45char *
46GetWord(DviWidget dw, char *Buffer, int Length)
47{
48    int i = 0, c;
49    char *p = Buffer;
50
51    Length--;                   /* Save room for final NULL */
52    while (DviGetC(dw, &c) != EOF && isspace(c))
53        ;
54    if (c != EOF)
55        DviUngetC(dw, c);
56    while (i++ < Length && DviGetC(dw, &c) != EOF && !isspace(c)) {
57        if (p)
58            *p++ = c;
59    }
60    if (c != EOF)
61        DviUngetC(dw, c);
62    if (p)
63        *p = '\0';
64    return (Buffer);
65}
66
67int
68GetNumber(DviWidget dw)
69{
70    int i = 0, c;
71
72    while (DviGetC(dw, &c) != EOF && isspace(c))
73        ;
74    if (c != EOF)
75        DviUngetC(dw, c);
76    while (DviGetC(dw, &c) != EOF && isdigit(c))
77        i = i * 10 + c - '0';
78    if (c != EOF)
79        DviUngetC(dw, c);
80    return (i);
81}
82