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/*
htop - RichString.c
(C) 2004,2011 Hisham H. Muhammad
Released under the GNU GPLv2+, see the COPYING file
in the source distribution for its full text.
*/
#include "RichString.h"
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include "Macros.h"
#include "XUtils.h"
#define charBytes(n) (sizeof(CharType) * (n))
static void RichString_extendLen(RichString* this, int len) {
if (this->chlen <= RICHSTRING_MAXLEN) {
if (len > RICHSTRING_MAXLEN) {
this->chptr = xMalloc(charBytes(len + 1));
memcpy(this->chptr, this->chstr, charBytes(this->chlen));
}
} else {
if (len <= RICHSTRING_MAXLEN) {
memcpy(this->chstr, this->chptr, charBytes(len));
free(this->chptr);
this->chptr = this->chstr;
} else {
this->chptr = xRealloc(this->chptr, charBytes(len + 1));
}
}
RichString_setChar(this, len, 0);
this->chlen = len;
}
static void RichString_setLen(RichString* this, int len) {
if (len < RICHSTRING_MAXLEN && this->chlen < RICHSTRING_MAXLEN) {
RichString_setChar(this, len, 0);
this->chlen = len;
} else {
RichString_extendLen(this, len);
}
}
void RichString_rewind(RichString* this, int count) {
RichString_setLen(this, this->chlen - count);
}
#ifdef HAVE_LIBNCURSESW
static inline int RichString_writeFromWide(RichString* this, int attrs, const char* data_c, int from, int len) {
wchar_t data[len + 1];
len = mbstowcs(data, data_c, len);
if (len <= 0)
return 0;
int newLen = from + len;
RichString_setLen(this, newLen);
for (int i = from, j = 0; i < newLen; i++, j++) {
this->chptr[i] = (CharType) { .attr = attrs & 0xffffff, .chars = { (iswprint(data[j]) ? data[j] : L'\xFFFD') } };
}
return len;
}
int RichString_appendnWideColumns(RichString* this, int attrs, const char* data_c, int len, int* columns) {
wchar_t data[len + 1];
len = mbstowcs(data, data_c, len);
if (len <= 0)
return 0;
int from = this->chlen;
int newLen = from + len;
RichString_setLen(this, newLen);
int columnsWritten = 0;
int pos = from;
for (int j = 0; j < len; j++) {
wchar_t c = iswprint(data[j]) ? data[j] : L'\xFFFD';
int cwidth = wcwidth(c);
if (cwidth > *columns)
break;
*columns -= cwidth;
columnsWritten += cwidth;
this->chptr[pos] = (CharType) { .attr = attrs & 0xffffff, .chars = { c, '\0' } };
pos++;
}
RichString_setLen(this, pos);
*columns = columnsWritten;
return pos - from;
}
static inline int RichString_writeFromAscii(RichString* this, int attrs, const char* data, int from, int len) {
int newLen = from + len;
RichString_setLen(this, newLen);
for (int i = from, j = 0; i < newLen; i++, j++) {
this->chptr[i] = (CharType) { .attr = attrs & 0xffffff, .chars = { (isprint(data[j]) ? data[j] : L'\xFFFD') } };
}
return len;
}
inline void RichString_setAttrn(RichString* this, int attrs, int start, int charcount) {
int end = CLAMP(start + charcount, 0, this->chlen);
for (int i = start; i < end; i++) {
this->chptr[i].attr = attrs;
}
}
void RichString_appendChr(RichString* this, int attrs, char c, int count) {
int from = this->chlen;
int newLen = from + count;
RichString_setLen(this, newLen);
for (int i = from; i < newLen; i++) {
this->chptr[i] = (CharType) { .attr = attrs, .chars = { c, 0 } };
}
}
int RichString_findChar(const RichString* this, char c, int start) {
const wchar_t wc = btowc(c);
const cchar_t* ch = this->chptr + start;
for (int i = start; i < this->chlen; i++) {
if (ch->chars[0] == wc)
return i;
ch++;
}
return -1;
}
#else /* HAVE_LIBNCURSESW */
static inline int RichString_writeFromWide(RichString* this, int attrs, const char* data_c, int from, int len) {
int newLen = from + len;
RichString_setLen(this, newLen);
for (int i = from, j = 0; i < newLen; i++, j++) {
this->chptr[i] = (((unsigned char)data_c[j]) >= 32 ? ((unsigned char)data_c[j]) : '?') | attrs;
}
this->chptr[newLen] = 0;
return len;
}
int RichString_appendnWideColumns(RichString* this, int attrs, const char* data_c, int len, int* columns) {
int written = RichString_writeFromWide(this, attrs, data_c, this->chlen, MINIMUM(len, *columns));
*columns = written;
return written;
}
static inline int RichString_writeFromAscii(RichString* this, int attrs, const char* data_c, int from, int len) {
return RichString_writeFromWide(this, attrs, data_c, from, len);
}
void RichString_setAttrn(RichString* this, int attrs, int start, int charcount) {
int end = CLAMP(start + charcount, 0, this->chlen);
for (int i = start; i < end; i++) {
this->chptr[i] = (this->chptr[i] & 0xff) | attrs;
}
}
void RichString_appendChr(RichString* this, int attrs, char c, int count) {
int from = this->chlen;
int newLen = from + count;
RichString_setLen(this, newLen);
for (int i = from; i < newLen; i++) {
this->chptr[i] = c | attrs;
}
}
int RichString_findChar(const RichString* this, char c, int start) {
const chtype* ch = this->chptr + start;
for (int i = start; i < this->chlen; i++) {
if ((*ch & 0xff) == (chtype) c)
return i;
ch++;
}
return -1;
}
#endif /* HAVE_LIBNCURSESW */
void RichString_delete(RichString* this) {
if (this->chlen > RICHSTRING_MAXLEN) {
free(this->chptr);
this->chptr = this->chstr;
}
}
void RichString_setAttr(RichString* this, int attrs) {
RichString_setAttrn(this, attrs, 0, this->chlen);
}
int RichString_appendWide(RichString* this, int attrs, const char* data) {
return RichString_writeFromWide(this, attrs, data, this->chlen, strlen(data));
}
int RichString_appendnWide(RichString* this, int attrs, const char* data, int len) {
return RichString_writeFromWide(this, attrs, data, this->chlen, len);
}
int RichString_writeWide(RichString* this, int attrs, const char* data) {
return RichString_writeFromWide(this, attrs, data, 0, strlen(data));
}
int RichString_appendAscii(RichString* this, int attrs, const char* data) {
return RichString_writeFromAscii(this, attrs, data, this->chlen, strlen(data));
}
int RichString_appendnAscii(RichString* this, int attrs, const char* data, int len) {
return RichString_writeFromAscii(this, attrs, data, this->chlen, len);
}
int RichString_writeAscii(RichString* this, int attrs, const char* data) {
return RichString_writeFromAscii(this, attrs, data, 0, strlen(data));
}
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