93 lines
1.5 KiB
C
93 lines
1.5 KiB
C
/* $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);
|
|
}
|