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/* TO_SJIS.C is Copyright 1990 Humanities and Arts Computing Center */
/* may be used under the terms of HACC software general public license */
/* see the file license for details */
/* usage: to_sjis inputfilename outputfilename */
/* convert escape sequence tagged JIS codes to 8-bit JIS codes */
/* Kanji-In sequences accepted are <ESC>$@ <ESC>$B or <ESC>K */
/* Kanji-out sequences accepted are <ESC>(J <ESC>(B or <ESC>H */
/* suggestions to ridgeway@u.washington.edu */
#include <stdio.h>
/* make the meaning of byte known to C */
typedef unsigned char byte;
/* globally accessible data */
char output[128], input[128]; /* buffers for file names */
char *progname; /* the name of this program */
FILE *outfile,*infile; /* the input and output files */
void charout(char thischar)
{
putc(thischar,outfile);
}
void copyright()
{
puts("TO_SJIS 7-bit to 8-bit JIS converter.\n");
puts("HUMANITIES AND ARTS COMPUTING CENTER, DR-10");
puts("UNIVERSITY OF WASHINGTON, SEATTLE WA 98195 USA\n");
puts("Copyright 1990 Humanities and Arts Computing Center\n");
puts("This software may be used, modified, and redistributed free of any");
puts("fee or royalty, provided that this copyright and 'free software' notice");
puts("remains intact in any copies redistributed, and that you may charge no fee");
puts("of any sort whatsoever without the written permission of the Humanities");
puts("and Arts Computing Center.");
return;
}
jumpout(int errcode)
/* immediate exit */
{
exit(errcode);
}
/* see whether a file of that name already exists */
void exists (FILE *handle, char *filename)
{
unsigned char response;
handle = fopen ( filename , "rb" ) ;
if (handle != NULL)
{ fclose(handle);
printf("File %s already exists: O.K. to replace? (Y/N): ", filename);
response = getchar();
if ( ! ( (response=='y') || (response=='Y') ) )
{
printf("\nPlease rename files as necessary and try again.\n");
jumpout(3);
}
}
return;
}
/* open a file with some access */
FILE *getopen(char *filename, char *access)
{
int temp;
FILE *handle;
gets(filename);
if (access[0]=='w' || access[0]=='W') exists(handle,filename);
handle=fopen(filename,access);
if (handle == NULL) {
puts("\nCan't open file ");
puts(filename);
puts("\n");
}
return handle;
}
/* prompt for and open a file */
FILE *get_file(char *access,char *prompt,char *filename)
{
printf("\n %s",prompt);
return getopen(filename,access);
}
/* quick open of the inputfile */
openinfile ()
{
infile = fopen ( input , "rb" ) ;
if (infile == NULL)
{ printf("%s: Unable to open %s; exiting on error.\n",progname,input);
jumpout(4);
}
}
/* quick open of the output file */
openoutfile ()
{
exists(outfile,output);
outfile = fopen ( output , "wb" ) ;
if (outfile == NULL)
{ printf("%s: Unable to open %s; exiting on error.\n",progname, output);
jumpout(5);
}
}
/* get a memory block and test that it was obtained */
void *getmemblk(unsigned int blocksize)
{
void *thisblock;
thisblock=(void *) malloc(blocksize);
if (thisblock==NULL) {
printf("\n%s: !Failure while attempting to allocate %ud bytes of memory.",progname,blocksize);
printf("\n . . . aborting . . .\n");
exit(1);
}
return thisblock;
}
void stringout(char *thisstring)
{
fputs(thisstring,outfile);
}
void intout(int thisone)
{
fprintf(outfile,"%d",thisone);
}
void uintout(unsigned int thisone)
{
fprintf(outfile,"%ud",thisone);
}
void newlineout()
{
stringout("\n");
}
main(int argc, char *argv[])
{
int ch,err,jflag;
jflag=0;
copyright();
progname = "TO_SJIS";
if (argc > 1) {
strcpy ( input , argv [ 1 ] ) ;
openinfile();
}
else {
infile=get_file("r","Enter input filename: ",input);
}
if (argc > 2) {
strcpy ( output , argv [ 2 ] ) ;
openoutfile();
}
else {
outfile=get_file("w","Enter output filename: ",output);
}
while ((ch = getc(infile)) != EOF) {
if (ch == 27) {
ch = getc(infile);
if (jflag) {
if (ch == '(') {
ch = getc(infile);
if (ch == 'J' || ch == 'B') jflag=0;
else {
putc(27,outfile);
putc('(',outfile);
putc(ch,outfile);
}
}
else {
if (ch == 'H') jflag=0;
else {
putc(27,outfile);
putc(ch,outfile);
}
}
}
else {
if (ch == '$') {
ch = getc(infile);
if (ch == '@' || ch == 'B') jflag=1;
else {
putc(27,outfile);
putc('$',outfile);
putc(ch,outfile);
}
}
else {
if (ch == 'K') jflag=1;
else {
putc(27,outfile);
putc(ch,outfile);
}
}
}
}
else {
if (jflag) putc(ch+128,outfile);
else putc(ch,outfile);
}
}
printf("\n\nTO_SJIS complete.\n");
fclose(infile);
fclose(outfile);
}
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