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Overview
| Comment: | Printing a value of 0 using %c terminates the string. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | printf-enhancement |
| Files: | files | file ages | folders |
| SHA3-256: | 255612f0a131f2f522cbca3cc5a1edcf7e38938abca25ba421e7e38a422db9c9 |
| User & Date: | drh 2018-02-19 21:58:16 |
Context
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2018-02-19
| ||
| 22:46 | Enhance the string formatter (used by printf()) so that the width and precision of string substitution operators refer to characters instead of bytes when the alternate-form-2 flag ("!") is used. Also fix the %c substition to always work within unicode, regardless of the alternate-form-2 flag. check-in: c883c4d3 user: drh tags: trunk | |
| 21:58 | Printing a value of 0 using %c terminates the string. Closed-Leaf check-in: 255612f0 user: drh tags: printf-enhancement | |
| 20:41 | More test cases for unicode handling in printf. check-in: ac188211 user: drh tags: printf-enhancement | |
Changes
Changes to src/printf.c.
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buf[0] = '%';
bufpt = buf;
length = 1;
break;
case etCHARX:
if( bArgList ){
bufpt = getTextArg(pArgList);
length = 0;
if( bufpt ){
buf[0] = c = *(bufpt++);
length = 1;
if( (c&0xc0)==0xc0 ){
while( length<4 && (bufpt[0]&0xc0)==0x80 ){
buf[length++] = *(bufpt++);
}
}
}
}else{
unsigned int ch = va_arg(ap,unsigned int);
if( ch<0x00080 ){
buf[0] = ch & 0xff;
length = 1;
}else if( ch<0x00800 ){
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| < > > |
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buf[0] = '%';
bufpt = buf;
length = 1;
break;
case etCHARX:
if( bArgList ){
bufpt = getTextArg(pArgList);
length = 1;
if( bufpt ){
buf[0] = c = *(bufpt++);
if( (c&0xc0)==0xc0 ){
while( length<4 && (bufpt[0]&0xc0)==0x80 ){
buf[length++] = *(bufpt++);
}
}
}else{
buf[0] = 0;
}
}else{
unsigned int ch = va_arg(ap,unsigned int);
if( ch<0x00080 ){
buf[0] = ch & 0xff;
length = 1;
}else if( ch<0x00800 ){
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