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/* $XFree86: xc/programs/xditview/lex.c,v 1.3 2000/12/04 21:01:01 dawes Exp $ */
#include <X11/Xos.h>
#include <X11/IntrinsicP.h>
#include <X11/StringDefs.h>
#include <stdio.h>
#include <ctype.h>
#include "DviP.h"
int
DviGetAndPut(dw, cp)
DviWidget dw;
int *cp;
{
if (dw->dvi.ungot)
{
dw->dvi.ungot = 0;
*cp = getc (dw->dvi.file);
}
else
{
*cp = getc (dw->dvi.file);
putc (*cp, dw->dvi.tmpFile);
}
return *cp;
}
char *
GetLine(dw, Buffer, Length)
DviWidget dw;
char *Buffer;
int Length;
{
int i = 0, c;
char *p = Buffer;
Length--; /* Save room for final NULL */
while ((!p || i < Length) && DviGetC (dw, &c) != EOF && c != '\n')
if (p)
*p++ = c;
#if 0
if (c == '\n' && p) /* Retain the newline like fgets */
*p++ = c;
#endif
if (c == '\n')
DviUngetC(dw, c);
if (p)
*p = '\0';
return (Buffer);
}
char *
GetWord(dw, Buffer, Length)
DviWidget dw;
char *Buffer;
int Length;
{
int i = 0, c;
char *p = Buffer;
Length--; /* Save room for final NULL */
while (DviGetC(dw, &c) != EOF && isspace(c))
;
if (c != EOF)
DviUngetC(dw, c);
while (i < Length && DviGetC(dw, &c) != EOF && !isspace(c))
if (p)
*p++ = c;
if (c != EOF)
DviUngetC(dw, c);
if (p)
*p = '\0';
return (Buffer);
}
int
GetNumber(dw)
DviWidget dw;
{
int i = 0, c;
while (DviGetC(dw, &c) != EOF && isspace(c))
;
if (c != EOF)
DviUngetC(dw, c);
while (DviGetC(dw, &c) != EOF && isdigit(c))
i = i*10 + c - '0';
if (c != EOF)
DviUngetC(dw, c);
return (i);
}
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