mirror of https://github.com/lianthony/NT4.0
145 lines
2.7 KiB
145 lines
2.7 KiB
/* fgetsW.c - reads a string
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*
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* Modifications
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* 7-Apr-1993 a-dianeo requivalent to ANSI version
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*
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*/
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#include <string.h>
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#include <stdio.h>
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#include <windows.h>
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#include "netascii.h"
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/*
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* returns line from file (no CRLFs); returns NULL if EOF
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*/
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TCHAR *
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fgetsW (buf, len, fh)
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TCHAR *buf;
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int len;
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FILE* fh;
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{
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int c = 0;
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TCHAR *pch;
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int cchline;
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DWORD cchRead;
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pch = buf;
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cchline = 0;
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if (ftell(fh) == 0) {
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fread(&c, sizeof(TCHAR), 1, fh);
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if (c != 0xfeff)
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GenOutput(2, TEXT("help file not Unicode\n"));
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}
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while (TRUE)
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{
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/*
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* for now read in the buffer in ANSI form until Unicode is more
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* widely accepted - dee
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*
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*/
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cchRead = fread(&c, sizeof(TCHAR), 1, fh);
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//
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// if there are no more characters, end the line
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//
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if (cchRead < 1)
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{
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c = EOF;
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break;
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}
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//
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// if we see a \r, we ignore it
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//
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if (c == TEXT('\r'))
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continue;
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//
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// if we see a \n, we end the line
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//
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if (c == TEXT('\n')) {
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*pch++ = c;
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break;
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}
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//
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// if the char is not a tab, store it
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//
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if (c != TEXT('\t'))
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{
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*pch = (TCHAR) c;
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pch++;
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cchline++;
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}
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//
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// if the line is too long, end it now
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//
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if (cchline >= len - 1) {
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break;
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}
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}
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//
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// end the line
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//
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*pch = (TCHAR) 0;
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//
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// return NULL at EOF with nothing read
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//
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return ((c == EOF) && (pch == buf)) ? NULL : buf;
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}
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/* stolen from crt32\convert\xtoa and converted to Unicode */
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TCHAR*
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ultow(DWORD val, TCHAR*buf, DWORD radix)
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{
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TCHAR *p; /* pointer to traverse string */
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TCHAR *firstdig; /* pointer to first digit */
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TCHAR temp; /* temp char */
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DWORD digval; /* value of digit */
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p = buf;
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firstdig = p; /* save pointer to first digit */
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do {
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digval = (val % radix);
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val /= radix; /* get next digit */
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/* convert to ascii and store */
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if (digval > 9)
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*p++ = (TCHAR) (digval - 10 + 'a'); /* a letter */
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else
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*p++ = (TCHAR) (digval + '0'); /* a digit */
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} while (val > 0);
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/* We now have the digit of the number in the buffer, but in reverse
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order. Thus we reverse them now. */
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*p-- = NULLC; /* terminate string; p points to last digit */
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do {
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temp = *p;
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*p = *firstdig;
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*firstdig = temp; /* swap *p and *firstdig */
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--p;
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++firstdig; /* advance to next two digits */
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} while (firstdig < p); /* repeat until halfway */
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return buf;
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}
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