503 lines
13 KiB
C
503 lines
13 KiB
C
/****************************************************************************/
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/* */
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/* rcutil.C - */
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/* */
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/* Windows 3.0 Resource Compiler - Utility Functions */
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/* */
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/* */
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/****************************************************************************/
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#include "rc.h"
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/*---------------------------------------------------------------------------*/
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/* */
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/* MyAlloc() - */
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/* */
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/*---------------------------------------------------------------------------*/
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// HACK Alert. Allocate an extra longlong and return past it (to allow for PREVCH()
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// to store a byte before the allocation block and to maintain 8 byte alignment).
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VOID *
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MyAlloc(
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UINT nbytes
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)
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{
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PVOID s;
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if ((s = HeapAlloc(hHeap, HEAP_NO_SERIALIZE|HEAP_ZERO_MEMORY, nbytes+8)) != NULL) {
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return(((PCHAR)s)+8);
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} else {
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SET_MSG(Msg_Text, sizeof(Msg_Text), GET_MSG(1120), nbytes);
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quit(Msg_Text);
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}
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return NULL;
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* MyFree() - */
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/* */
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/*---------------------------------------------------------------------------*/
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VOID *
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MyFree(
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VOID *p
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)
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{
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if (p) {
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HeapFree(hHeap, HEAP_NO_SERIALIZE, ((PCHAR)p)-8);
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}
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return(NULL);
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* MyMakeStr() - */
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/* */
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/*---------------------------------------------------------------------------*/
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WCHAR *
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MyMakeStr(
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WCHAR *s
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)
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{
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WCHAR * s1;
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if (s) {
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s1 = (WCHAR *) MyAlloc((wcslen(s) + 1) * sizeof(WCHAR)); /* allocate buffer */
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wcscpy(s1, s); /* copy string */
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} else {
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s1 = s;
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}
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return(s1);
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* MyRead() - */
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/* */
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/*---------------------------------------------------------------------------*/
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UINT
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MyRead(
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FILE *fh,
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VOID *p,
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UINT n
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)
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{
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UINT n1;
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n1 = fread(p, 1, (size_t)n, fh);
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if (ferror (fh)) {
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quit(GET_MSG(1121));
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return 0;
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} else {
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return(n1);
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}
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* MyWrite() - */
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/* */
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/*---------------------------------------------------------------------------*/
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UINT
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MyWrite(
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FILE *fh,
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VOID *p,
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UINT n
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)
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{
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UINT n1;
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if ((n1 = fwrite(p, 1, n, fh)) != n) {
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quit("RC : fatal error RW1022: I/O error writing file.");
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return (0);
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} else {
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return(n1);
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}
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* MyAlign() - */
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/* */
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/*---------------------------------------------------------------------------*/
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UINT
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MyAlign(
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PFILE fh
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)
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{
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DWORD t0 = 0;
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DWORD ib;
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/* align file to dword */
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ib = MySeek(fh, 0L, SEEK_CUR);
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if (ib % 4) {
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ib = 4 - ib % 4;
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MyWrite(fh, (PVOID)&t0, (UINT)ib);
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return(ib);
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}
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return(0);
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* MySeek() - */
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/* */
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/*---------------------------------------------------------------------------*/
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LONG
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MySeek(
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FILE *fh,
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LONG pos,
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int cmd
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)
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{
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if (fseek(fh, pos, cmd))
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quit("RC : fatal error RW1023: I/O error seeking in file");
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if ((pos = ftell (fh)) == -1L)
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quit("RC : fatal error RW1023: I/O error seeking in file");
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return(pos);
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* MyCopy() - */
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/* */
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/*---------------------------------------------------------------------------*/
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int
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MyCopy(
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FILE *srcfh,
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PFILE dstfh,
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ULONG nbytes
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)
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{
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PCHAR buffer = (PCHAR) MyAlloc(BUFSIZE);
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UINT n;
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while (nbytes) {
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if (nbytes <= BUFSIZE)
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n = (UINT)nbytes;
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else
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n = BUFSIZE;
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nbytes -= n;
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MyRead(srcfh, buffer, n);
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MyWrite( dstfh, buffer, n);
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}
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MyFree(buffer);
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return(n);
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* MyCopyAll() - */
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/* */
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/*---------------------------------------------------------------------------*/
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int
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MyCopyAll(
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FILE *srcfh,
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PFILE dstfh
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)
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{
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PCHAR buffer = (PCHAR) MyAlloc(BUFSIZE);
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UINT n;
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while ((n = fread(buffer, 1, BUFSIZE, srcfh)) != 0)
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MyWrite(dstfh, buffer, n);
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MyFree(buffer);
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return TRUE;
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* strpre() - */
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/* */
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/*---------------------------------------------------------------------------*/
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/* strpre: return -1 if pch1 is a prefix of pch2, 0 otherwise.
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* compare is case insensitive.
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*/
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int
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strpre(
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PWCHAR pch1,
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PWCHAR pch2
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)
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{
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while (*pch1) {
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if (!*pch2)
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return 0;
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else if (towupper(*pch1) == towupper(*pch2))
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pch1++, pch2++;
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else
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return 0;
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}
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return - 1;
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* iswhite() - */
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/* */
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/*---------------------------------------------------------------------------*/
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int
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iswhite (
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WCHAR c
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)
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{
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/* returns true for whitespace and linebreak characters */
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switch (c) {
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case L' ':
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case L'\t':
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case L'\r':
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case L'\n':
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case EOF:
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return(-1);
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break;
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default:
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return(0);
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break;
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}
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* IsSwitchChar() - */
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/* */
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/*---------------------------------------------------------------------------*/
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BOOL
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IsSwitchChar(
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CHAR c
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)
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{
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/* true for switch characters */
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return (c == '/' || c == '-');
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* searchenv() - */
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/* */
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/*---------------------------------------------------------------------------*/
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/* the _searchenv() function in the C5.0 RTL doesn't work. In particular,
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* it fails to check for \ characters and can end up returning paths like
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* D:\\FILE.EXT. szActual is assumed to be at least MAX_PATH and will
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* always get walked all over
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*/
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VOID
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searchenv(
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PCHAR szFile,
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PCHAR szVar,
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PCHAR szActual
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)
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{
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PCHAR pchVar;
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PCHAR pch;
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int ich;
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PFILE fhTemp;
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if (!strcmp(szVar, "INCLUDE"))
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pchVar = pchInclude;
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else
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pchVar = getenv(szVar);
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if (!pchVar)
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return;
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/* we don't do absolute paths */
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if (szFile[0] == '\\' || szFile[0] == '/' || szFile[1] == ':') {
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for (ich = 0; szActual[ich] = szFile[ich]; ich++)
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;
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return;
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}
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do {
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/* copy the next environment string... */
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for (ich = 0; (szActual[ich] = pchVar[ich]) != '\000'; ich++)
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if (pchVar[ich] == ';')
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break;
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szActual[ich] = '\000';
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pchVar += ich;
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if (*pchVar)
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pchVar++;
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/* HARD LOOP -- find end of path string */
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for (pch = szActual; *pch; pch++)
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;
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/* check first! this is what _searchenv() messed up! */
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if (pch[-1] != '\\' && pch[-1] != '/')
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*pch++ = '\\';
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/* HARD LOOP -- we already know szFile does start with a drive or abs. dir */
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for (ich = 0; pch[ich] = szFile[ich]; ich++)
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;
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/* is the file here? szActual already contains name */
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if ((fhTemp = fopen(szActual, "rb")) != NULL) {
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fclose (fhTemp);
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return;
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}
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} while (szActual[0] && *pchVar);
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/* if we reach here, we know szActual is empty */
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return;
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}
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/*---------------------------------------------------------------------------*/
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/* */
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/* ExtractFileName(szFullName, szFileName) - */
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/* */
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/* This routine is used to extract just the file name from a string */
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/* that may or may not contain a full or partial path name. */
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/* */
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/*---------------------------------------------------------------------------*/
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VOID
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ExtractFileName(
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PWCHAR szFullName,
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PWCHAR szFileName
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)
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{
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int iLen;
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PWCHAR pCh;
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iLen = wcslen(szFullName);
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/* Goto the last character of the full name; */
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pCh = (PWCHAR)(szFullName + iLen);
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pCh--;
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/* Look for '/', '\\' or ':' character */
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while (iLen--) {
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if ((*pCh == L'\\') || (*pCh == L'/') || (*pCh == L':'))
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break;
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pCh--;
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}
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wcscpy(szFileName, ++pCh);
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}
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DWORD
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wcsatoi(
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WCHAR *s
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)
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{
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DWORD t = 0;
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while (*s) {
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t = 10 * t + (DWORD)((CHAR)*s - '0');
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s++;
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}
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return t;
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}
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WCHAR *
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wcsitow(
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LONG v,
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WCHAR *s,
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DWORD r
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)
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{
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DWORD cb = 0;
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DWORD t;
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DWORD tt = v;
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while (tt) {
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t = tt % r;
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cb++;
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tt /= r;
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}
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s += cb;
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*s-- = 0;
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while (v) {
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t = v % r;
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*s-- = (WCHAR)((CHAR)t + '0');
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v /= r;
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}
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return ++s;
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}
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// ----------------------------------------------------------------------------
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//
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// PreBeginParse
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//
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// ----------------------------------------------------------------------------
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VOID
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PreBeginParse(
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PRESINFO pRes,
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int id
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)
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{
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while (token.type != BEGIN) {
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switch (token.type) {
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case TKLANGUAGE:
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pRes->language = GetLanguage();
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break;
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case TKVERSION:
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GetToken(FALSE);
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if (token.type != NUMLIT)
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ParseError1(2139);
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pRes->version = token.longval;
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break;
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case TKCHARACTERISTICS:
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GetToken(FALSE);
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if (token.type != NUMLIT)
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ParseError1(2140);
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pRes->characteristics = token.longval;
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break;
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default:
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ParseError1(id);
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break;
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}
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GetToken(FALSE);
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}
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if (token.type != BEGIN)
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ParseError1(id);
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GetToken(TRUE);
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}
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