** E-Mail: furukawa@tcp-ip.or.jp
** \e$B$^$G8fO"Mm$r$*4j$$$7$^$9!#\e(B
***********************************************************************/
-/* $Id: nkf.c,v 1.57 2005/02/02 18:10:11 naruse Exp $ */
+/* $Id: nkf.c,v 1.58 2005/02/17 16:48:48 rei_furukawa Exp $ */
#define NKF_VERSION "2.0.4"
#define NKF_RELEASE_DATE "2005-02-02"
#include "config.h"
STATIC int mime_integrity PROTO((FILE *f,unsigned char *p));
STATIC int base64decode PROTO((int c));
+STATIC void mime_prechar PROTO((int c2, int c1));
STATIC void mime_putc PROTO((int c));
STATIC void open_mime PROTO((int c));
STATIC void close_mime PROTO(());
int c2,
c1;
{
- if (base64_count>50 && !mimeout_mode && c2==0 && c1==SPACE) {
- (*o_putc)(EOF);
- (*o_putc)(NL);
- } else if (base64_count>66 && mimeout_mode) {
- (*o_base64conv)(EOF,0);
- (*o_base64conv)(NL,0);
- (*o_base64conv)(SPACE,0);
- }
+ mime_prechar(c2, c1);
(*o_base64conv)(c2,c1);
}
#define nkf_toupper(c) (('a'<=c && c<='z')?(c-('a'-'A')):c)
#define nkf_isdigit(c) ('0'<=c && c<='9')
#define nkf_isxdigit(c) (nkf_isdigit(c) || ('a'<=c && c<='f') || ('A'<=c && c <= 'F'))
+#define nkf_isblank(c) (c == SPACE || c == TAB)
+#define nkf_isspace(c) (nkf_isblank(c) || c == CR || c == NL)
+#define nkf_isalpha(c) (('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
+#define nkf_isalnum(c) (nkf_isdigit(c) || nkf_isalpha(c))
void
switch_mime_getc()
}
}
+int mime_lastchar2, mime_lastchar1;
+
+void mime_prechar(c2, c1)
+ int c2, c1;
+{
+ if (mimeout_mode){
+ if (c2){
+ if (base64_count + mimeout_buf_count/3*4> 66){
+ (*o_base64conv)(EOF,0);
+ (*o_base64conv)(0,NL);
+ (*o_base64conv)(0,SPACE);
+ }
+ }else if (mime_lastchar2){
+ if (c1 <=DEL && !nkf_isspace(c1)){
+ (*o_base64conv)(0,SPACE);
+ }
+ }
+ }else{
+ if (c2 && mime_lastchar2 == 0
+ && mime_lastchar1 && !nkf_isspace(mime_lastchar1)){
+ (*o_base64conv)(0,SPACE);
+ }
+ }
+ mime_lastchar2 = c2;
+ mime_lastchar1 = c1;
+}
+
void
mime_putc(c)
int c;
{
int i = 0;
int j = 0;
-
- if (mimeout_f==FIXED_MIME && base64_count>71) {
- if (mimeout_mode=='Q') {
- if (c!=CR && c!=NL) {
- (*o_mputc)('=');
- (*o_mputc)(NL);
- }
- } else {
- eof_mime();
- (*o_mputc)(NL);
- }
- base64_count=0;
- } else if (mimeout_f!=FIXED_MIME && !mimeout_mode && (c==CR||c==NL)) {
- base64_count=0;
- }
- if (c!=EOF && mimeout_f!=FIXED_MIME) {
- if ( c<=DEL &&(output_mode==ASCII ||output_mode == ISO8859_1 ) ) {
- if (mimeout_mode=='Q') {
- if (c<=SPACE) {
- close_mime();
- (*o_mputc)(SPACE);
- base64_count++;
- }
- (*o_mputc)(c);
- base64_count++;
- return;
- } else if (mimeout_mode) {
- if (mimeout_buf_count>0
- && (mimeout_buf[mimeout_buf_count-1]==CR || mimeout_buf[mimeout_buf_count-1]==NL)) {
- if (c==SPACE || c==TAB) {
- for (i=0;i<mimeout_buf_count;i++) {
- mimeout_addchar(mimeout_buf[i]);
- }
- mimeout_buf_count = 0;
- } else if (SPACE<c && c<DEL) {
- eof_mime();
- for (i=0;i<mimeout_buf_count;i++) {
- (*o_mputc)(mimeout_buf[i]);
- }
- base64_count = 0;
- mimeout_buf_count = 0;
- }
- }
- if (c==SPACE || c==TAB || c==CR || c==NL) {
- for (i=0;i<mimeout_buf_count;i++) {
- if (SPACE<mimeout_buf[i] && mimeout_buf[i]<DEL) {
- eof_mime();
- for (i=0;i<mimeout_buf_count;i++) {
- (*o_mputc)(mimeout_buf[i]);
- base64_count++;
- }
- mimeout_buf_count = 0;
- }
- }
- mimeout_buf[mimeout_buf_count++] = c;
- if (mimeout_buf_count>MIMEOUT_BUF_LENGTH) {
- eof_mime();
- for (i=0;i<mimeout_buf_count;i++) {
- (*o_mputc)(mimeout_buf[i]);
- base64_count++;
- }
- mimeout_buf_count = 0;
- }
- return;
- }
-
- if (mimeout_buf_count>0 && SPACE<c && c!='=') {
- mimeout_buf[mimeout_buf_count++] = c;
- if (mimeout_buf_count>MIMEOUT_BUF_LENGTH) {
- j = mimeout_buf_count;
- mimeout_buf_count = 0;
- for (i=0;i<j;i++) {
- mimeout_addchar(mimeout_buf[i]);
- }
- }
- return;
- }
- } else if (!mimeout_mode) {
- if (c==SPACE || c==TAB || c==CR || c==NL) {
- if ((c==CR || c==NL)
- &&(mimeout_buf[mimeout_buf_count-1]==SPACE
- || mimeout_buf[mimeout_buf_count-1]==TAB)) {
- mimeout_buf_count--;
- }
- for (i=0;i<mimeout_buf_count;i++) {
- (*o_mputc)(mimeout_buf[i]);
- base64_count++;
- }
- mimeout_buf_count = 0;
- }
- mimeout_buf[mimeout_buf_count++] = c;
- if (mimeout_buf_count>MIMEOUT_BUF_LENGTH) {
- open_mime(output_mode);
- }
- return;
- }
- } else if (!mimeout_mode) {
- if (mimeout_buf_count>0 && mimeout_buf[mimeout_buf_count-1]==SPACE) {
- for (i=0;i<mimeout_buf_count-1;i++) {
- (*o_mputc)(mimeout_buf[i]);
- base64_count++;
- }
- mimeout_buf[0] = SPACE;
- mimeout_buf_count = 1;
- }
- open_mime(output_mode);
+ int lastchar;
+
+ if (mimeout_f == FIXED_MIME){
+ if (mimeout_mode == 'Q'){
+ if (base64_count > 71){
+ if (c!=CR && c!=NL) {
+ (*o_mputc)('=');
+ (*o_mputc)(NL);
+ }
+ base64_count = 0;
+ }
+ }else{
+ if (base64_count > 71){
+ eof_mime();
+ (*o_mputc)(NL);
+ base64_count = 0;
+ }
+ if (c == EOF) { /* c==EOF */
+ eof_mime();
+ }
+ }
+ if (c != EOF) { /* c==EOF */
+ mimeout_addchar(c);
}
- } else if (c == EOF) { /* c==EOF */
+ return;
+ }
+
+ /* mimeout_f != FIXED_MIME */
+
+ if (c == EOF) { /* c==EOF */
j = mimeout_buf_count;
mimeout_buf_count = 0;
i = 0;
for (;i<j;i++) {
- if (mimeout_buf[i]==SPACE || mimeout_buf[i]==TAB
- || mimeout_buf[i]==CR || mimeout_buf[i]==NL)
+ if (nkf_isspace(mimeout_buf[i])){
break;
+ }
mimeout_addchar(mimeout_buf[i]);
}
eof_mime();
}
return;
}
-
+
+ if (mimeout_mode=='Q') {
+ if (c <= DEL && (output_mode==ASCII ||output_mode == ISO8859_1 ) ) {
+ if (c <= SPACE) {
+ close_mime();
+ (*o_mputc)(SPACE);
+ base64_count++;
+ }
+ (*o_mputc)(c);
+ base64_count++;
+ }
+ return;
+ }
+
+ if (mimeout_buf_count > 0){
+ lastchar = mimeout_buf[mimeout_buf_count - 1];
+ }else{
+ lastchar = -1;
+ }
+
+ if (!mimeout_mode) {
+ if (c <= DEL && (output_mode==ASCII ||output_mode == ISO8859_1)) {
+ if (nkf_isspace(c)) {
+ if (c==CR || c==NL) {
+ base64_count=0;
+ }
+ for (i=0;i<mimeout_buf_count;i++) {
+ (*o_mputc)(mimeout_buf[i]);
+ base64_count++;
+ }
+ mimeout_buf[0] = c;
+ mimeout_buf_count = 1;
+ }else{
+ if (base64_count > 1
+ && base64_count + mimeout_buf_count > 76){
+ (*o_mputc)(NL);
+ base64_count = 0;
+ if (!nkf_isspace(mimeout_buf[0])){
+ (*o_mputc)(SPACE);
+ base64_count++;
+ }
+ }
+ mimeout_buf[mimeout_buf_count++] = c;
+ if (mimeout_buf_count>MIMEOUT_BUF_LENGTH) {
+ open_mime(output_mode);
+ }
+ }
+ return;
+ }else{
+ if (lastchar==CR || lastchar == NL){
+ for (i=0;i<mimeout_buf_count;i++) {
+ (*o_mputc)(mimeout_buf[i]);
+ }
+ base64_count = 0;
+ mimeout_buf_count = 0;
+ }
+ if (lastchar==SPACE) {
+ for (i=0;i<mimeout_buf_count-1;i++) {
+ (*o_mputc)(mimeout_buf[i]);
+ base64_count++;
+ }
+ mimeout_buf[0] = SPACE;
+ mimeout_buf_count = 1;
+ }
+ open_mime(output_mode);
+ }
+ }else{
+ /* mimeout_mode == 'B', 1, 2 */
+ if ( c<=DEL && (output_mode==ASCII ||output_mode == ISO8859_1 ) ) {
+ if (lastchar == CR || lastchar == NL){
+ if (nkf_isblank(c)) {
+ for (i=0;i<mimeout_buf_count;i++) {
+ mimeout_addchar(mimeout_buf[i]);
+ }
+ mimeout_buf_count = 0;
+ } else if (SPACE<c && c<DEL) {
+ eof_mime();
+ for (i=0;i<mimeout_buf_count;i++) {
+ (*o_mputc)(mimeout_buf[i]);
+ }
+ base64_count = 0;
+ mimeout_buf_count = 0;
+ }
+ }
+ if (c==SPACE || c==TAB || c==CR || c==NL) {
+ for (i=0;i<mimeout_buf_count;i++) {
+ if (SPACE<mimeout_buf[i] && mimeout_buf[i]<DEL) {
+ eof_mime();
+ for (i=0;i<mimeout_buf_count;i++) {
+ (*o_mputc)(mimeout_buf[i]);
+ base64_count++;
+ }
+ mimeout_buf_count = 0;
+ }
+ }
+ mimeout_buf[mimeout_buf_count++] = c;
+ if (mimeout_buf_count>MIMEOUT_BUF_LENGTH) {
+ eof_mime();
+ for (i=0;i<mimeout_buf_count;i++) {
+ (*o_mputc)(mimeout_buf[i]);
+ base64_count++;
+ }
+ mimeout_buf_count = 0;
+ }
+ return;
+ }
+ if (mimeout_buf_count>0 && SPACE<c && c!='=') {
+ mimeout_buf[mimeout_buf_count++] = c;
+ if (mimeout_buf_count>MIMEOUT_BUF_LENGTH) {
+ j = mimeout_buf_count;
+ mimeout_buf_count = 0;
+ for (i=0;i<j;i++) {
+ mimeout_addchar(mimeout_buf[i]);
+ }
+ }
+ return;
+ }
+ }
+ }
if (mimeout_buf_count>0) {
j = mimeout_buf_count;
mimeout_buf_count = 0;