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/*
* Copyright (C) 1999-2002 Stijn van Dongen.
*/
#include <ctype.h>
#include "parse.h"
#include "types.h"
/* bug: newlines in str thrash correct character counting */
mcxstatus mcxFpParse
( mcxIOstream* xf
, const char* str
, const char* caller
, mcxOnFail ON_FAIL
)
{ const char* s = str
; short c = 0
; short d = 0
; long bct = 0
; FILE* fp = xf->fp
; long pos = ftell(fp)
; int bReset = 0
; while
( c = s[0]
,
( c
&& ( d = fgetc(fp)
, bct++
, c == d
)
)
)
{ s++
; }
; if (c)
{ if (ON_FAIL == EXIT_ON_FAIL)
{ fprintf
( stderr
, "[%s] Parse error: expected to see `%s'\n"
, caller
, str
)
; mcxIOstreamReport(xf, stderr)
; exit(1)
; }
else
{ if (bReset)
{ fseek(fp, SEEK_SET, pos)
; }
else
{ ungetc(d, fp) /* put back first nonmatching character */
; xf->bc += bct-1 /* note that bct >= 1 since c != '\0' */
; xf->lo += bct-1
; }
; }
; return STATUS_FAIL
; }
else
{ xf->bc += bct
; xf->lo += bct
; return STATUS_OK
; }
; }
float mcxFpParseNumber
( mcxIOstream* xf
, const char* caller
)
{ float num
; int n_read = 0
; if (1 != fscanf(xf->fp, " %f%n", &num, &n_read))
{ fprintf
( stderr
, "[%s] Parse error: expected a number\n"
, caller
)
; mcxIOstreamReport(xf, stderr)
; exit(1)
; }
; xf->bc += n_read
; xf->lo += n_read
; return num
; }
int mcxFpSkipSpace
( mcxIOstream* xf
, const char* caller
)
{ short c
; long lct = 0
; long bct = 0
; long lo = xf->lo
; while ((c = fgetc(xf->fp)) != EOF)
{ if (c=='\n')
{ lct++
; bct++
; lo = 1
; }
else if (isspace(c))
{ bct++
; lo++
; }
else
{ break
; }
; }
; xf->lc += lct
; xf->bc += bct
; xf->lo = lo
; if (c == EOF)
{ xf->ateof = 1
; return EOF
; }
else
{ ungetc(c, xf->fp)
; return c
; }
; }
mcxstatus mcxFpFindInFile
( mcxIOstream* xf
, const char* str
, const char* caller
, mcxOnFail ON_FAIL
)
{ short c
; for (;;)
{
c = fgetc(xf->fp)
; mcxIOstreamStep(xf, c)
; if (c == EOF)
{
fprintf
( stderr
, "[%s] In file [%s] at EOF, expected `%s' not found\n"
, caller
, xf->fn->str
, str
)
; mcxIOstreamReport(xf, stderr)
; if (ON_FAIL == RETURN_ON_FAIL)
return STATUS_FAIL
; else
exit(1)
; }
; if
( c == str[0]
&& ( mcxFpParse
( xf
, str + 1
, caller
, 1
)
== STATUS_OK
)
)
{ return STATUS_OK
; }
; }
; return STATUS_FAIL
; }
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