vdr-plugin-streamdev/tools/string.c

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C
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2004-12-30 23:43:55 +01:00
#include "tools/string.h"
#ifdef TOOLBOX_REGEX
# include "tools/regex.h"
#endif
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <limits.h>
#include <math.h>
#include <errno.h>
const cTBString cTBString::Null;
cTBString::cTBString():
cTBShared(),
m_StringLen(0) {
}
cTBString::cTBString(const cTBString &src):
cTBShared(src),
m_StringLen(src.m_StringLen) {
}
cTBString::cTBString(const char *src) {
Set(src);
}
cTBString::cTBString(const uchar *src) {
Set(src);
}
cTBString::cTBString(char src) {
Set(src);
}
cTBString::~cTBString () {
}
void cTBString::Release(uint newsize) {
m_StringLen = newsize;
cTBShared::Release(m_StringLen + 1);
Buffer()[m_StringLen] = 0;
}
void cTBString::Clear() {
cTBShared::Clear();
m_StringLen = 0;
}
void cTBString::Set(const cTBString &String) {
cTBShared::Set(String);
m_StringLen = String.m_StringLen;
}
void cTBString::Set (const char *String) {
m_StringLen = strlen(String);
Allocate(m_StringLen + 1);
memcpy(Buffer(), String, m_StringLen);
Buffer()[m_StringLen] = 0;
}
void cTBString::Set (const uchar *String) {
Set((const char*)String);
}
void cTBString::Set (char Character) {
m_StringLen = 1;
Allocate(m_StringLen + 1);
Buffer()[0] = Character;
Buffer()[1] = 0;
}
void cTBString::Fill(char Character, int Length) {
if (Length != -1) {
m_StringLen = Length;
Allocate(m_StringLen + 1);
}
memset(Buffer(), Character, m_StringLen);
Buffer()[m_StringLen] = 0;
}
void cTBString::Append(const cTBString &src) {
Allocate(m_StringLen + src.m_StringLen + 1, true);
memcpy(Buffer() + m_StringLen, src.Buffer(), src.m_StringLen);
m_StringLen += src.m_StringLen;
Buffer()[m_StringLen] = 0;
}
void cTBString::Append(const char *src) {
uint len = strlen(src);
Allocate(m_StringLen + len + 1, true);
memcpy(Buffer() + m_StringLen, src, len);
m_StringLen += len;
Buffer()[m_StringLen] = 0;
}
void cTBString::Append(char src) {
Allocate(m_StringLen + 2, true);
Buffer()[m_StringLen] = src;
++m_StringLen;
Buffer()[m_StringLen] = 0;
}
void cTBString::Prepend(const cTBString &src) {
Allocate(m_StringLen + src.m_StringLen + 1, true);
memmove(Buffer() + src.m_StringLen, Buffer(), m_StringLen);
memcpy(Buffer(), src.Buffer(), src.m_StringLen);
m_StringLen += src.m_StringLen;
Buffer()[m_StringLen] = 0;
}
void cTBString::Prepend(const char *src) {
uint len = strlen(src);
Allocate(m_StringLen + len + 1, true);
memmove(Buffer() + len, Buffer(), m_StringLen);
memcpy(Buffer(), src, len);
m_StringLen += len;
Buffer()[m_StringLen] = 0;
}
void cTBString::Prepend(char src) {
Allocate(m_StringLen + 2, true);
memmove(Buffer() + 1, Buffer(), m_StringLen);
Buffer()[0] = src;
Buffer()[++m_StringLen] = 0;
}
void cTBString::Insert(uint Index, const cTBString &String) {
Allocate(m_StringLen + String.m_StringLen + 1, true);
memmove(Buffer() + Index + String.m_StringLen, Buffer() + Index, m_StringLen - Index);
memcpy(Buffer() + Index, String.Buffer(), String.m_StringLen);
m_StringLen += String.m_StringLen;
Buffer()[m_StringLen] = 0;
}
void cTBString::Insert(uint Index, const char *String) {
uint len = strlen(String);
Allocate(m_StringLen + len + 1, true);
memmove(Buffer() + Index + len, Buffer() + Index, m_StringLen - Index);
memcpy(Buffer() + Index, String, len);
m_StringLen += len;
Buffer()[m_StringLen] = 0;
}
void cTBString::Insert(uint Index, char Character) {
Allocate(m_StringLen + 2, true);
memmove(Buffer() + Index + 1, Buffer() + Index, m_StringLen - Index);
Buffer()[Index] = Character;
Buffer()[++m_StringLen] = 0;
}
RETURNS(cTBString, cTBString::Left(uint count) const, ret)
if (count > m_StringLen)
count = m_StringLen;
ret.Allocate(count + 1);
memcpy(ret.Buffer(), Buffer(), count);
ret.Buffer()[count] = 0;
ret.m_StringLen = count;
RETURN(ret)
RETURNS(cTBString, cTBString::Right(uint count) const, ret)
if (count > m_StringLen)
count = m_StringLen;
ret.Allocate(count + 1);
memcpy(ret.Buffer(), Buffer() + m_StringLen - count, count);
ret.Buffer()[count] = 0;
ret.m_StringLen = count;
RETURN(ret)
RETURNS(cTBString, cTBString::Mid(int idx, int count) const, ret)
if (idx < 0)
idx = m_StringLen + idx;
if ((count < 0) || (count > (int)m_StringLen - idx))
count = m_StringLen - idx;
ret.Allocate(count + 1);
memcpy(ret.Buffer(), Buffer() + idx, count);
ret.Buffer()[count] = 0;
ret.m_StringLen = count;
RETURN(ret)
int cTBString::Find (const cTBString &String, uint Offset) const {
if (Offset >= m_StringLen)
return -1;
char *pos = strstr(Buffer() + Offset, String.Buffer());
if (pos) return (pos - Buffer());
else return -1;
}
int cTBString::Find (const char *String, uint Offset) const {
if (Offset >= m_StringLen)
return -1;
char *pos = strstr(Buffer() + Offset, String);
if (pos) return (pos - Buffer());
else return -1;
}
int cTBString::Find (char Character, uint Offset) const {
if (Offset >= m_StringLen)
return -1;
char *pos = strchr(Buffer() + Offset, Character);
if (pos) return (pos - Buffer());
else return -1;
}
#ifdef TOOLBOX_REGEX
bool cTBString::Find (cTBRegEx &Regex, uint Offset) const {
return Regex.Match(Buffer(), Offset);
}
#endif
void cTBString::Format (const char *fmt, ...) {
int n, size = 128;
va_list ap;
char *buf = Buffer(size);
while (1) {
va_start(ap, fmt);
n = vsnprintf(buf, size, fmt, ap);
va_end(ap);
if ((n > -1) && (n < size))
break;
if (n > -1)
size = n + 1;
else
size *= 2;
buf = Buffer(size);
}
Release(n);
}
void cTBString::Format(const cTBString &fmt, ...) {
int n, size = 128;
va_list ap;
char *buf = Buffer(size);
while (1) {
va_start(ap, &fmt);
n = vsnprintf(buf, size, fmt, ap);
va_end(ap);
if ((n > -1) && (n < size))
break;
if (n > -1)
size = n + 1;
else
size *= 2;
buf = Buffer(size);
}
Release(n);
}
template<cTBString::TOFUNC F>
cTBString cTBString::ToAnything(void) const {
const char *src;
char *dest;
cTBString ret;
src = Buffer();
dest = ret.Buffer(m_StringLen + 1);
for (; src < Buffer() + m_StringLen; ++src, ++dest)
*dest = F(*src);
*dest = '\0';
ret.Release(m_StringLen);
return ret;
}
template<cTBString::ISFUNC F>
bool cTBString::IsAnything(void) const {
const char *ptr = Buffer();
for (; ptr < Buffer() + m_StringLen; ++ptr)
if (!F(*ptr)) return false;
return true;
}
short cTBString::ToShort(bool *Ok) const {
long ret;
char *endptr;
bool res = false;
ret = strtol(Buffer(), &endptr, 0);
if (!IsEmpty() && *endptr == '\0' && ret >= SHRT_MIN && ret <= SHRT_MAX)
res = true;
if (Ok) *Ok = res;
return (short)ret;
}
ushort cTBString::ToUShort(bool *Ok) const {
ulong ret;
char *endptr;
bool res = false;
ret = strtoul(Buffer(), &endptr, 0);
if (!IsEmpty() && *endptr == '\0' && ret <= USHRT_MAX)
res = true;
if (Ok) *Ok = res;
return (ushort)ret;
}
int cTBString::ToInt(bool *Ok) const {
long ret;
char *endptr;
bool res = false;
ret = strtol(Buffer(), &endptr, 0);
if (!IsEmpty() && *endptr == '\0' && ret >= INT_MIN && ret <= INT_MAX)
res = true;
if (Ok) *Ok = res;
return (int)ret;
}
uint cTBString::ToUInt(bool *Ok) const {
ulong ret;
char *endptr;
bool res = false;
ret = strtoul(Buffer(), &endptr, 0);
if (!IsEmpty() && *endptr == '\0' && ret <= UINT_MAX)
res = true;
if (Ok) *Ok = res;
return (uint)ret;
}
long cTBString::ToLong(bool *Ok) const {
long ret;
char *endptr;
bool res = false;
errno = 0;
ret = strtol(Buffer(), &endptr, 0);
if (!IsEmpty() && *endptr == '\0' && errno != ERANGE)
res = true;
if (Ok) *Ok = res;
return (long)ret;
}
ulong cTBString::ToULong(bool *Ok) const {
ulong ret;
char *endptr;
bool res = false;
errno = 0;
ret = strtoul(Buffer(), &endptr, 0);
if (!IsEmpty() && *endptr == '\0' && errno != ERANGE)
res = true;
if (Ok) *Ok = res;
return (ulong)ret;
}
float cTBString::ToFloat(bool *Ok) const {
double ret;
char *endptr;
bool res = false;
ret = strtod(Buffer(), &endptr);
if (!IsEmpty() && *endptr == '\0' && errno != ERANGE)
res = true;
if (Ok) *Ok = res;
return (float)ret;
}
double cTBString::ToDouble(bool *Ok) const {
double ret;
char *endptr;
bool res = false;
errno = 0;
ret = strtol(Buffer(), &endptr, 0);
if (!IsEmpty() && *endptr == '\0' && errno != ERANGE)
res = true;
if (Ok) *Ok = res;
return (double)ret;
}
RETURNS(cTBString, cTBString::Number(short Num), ret)
ret.Format("%hd", Num);
RETURN(ret)
RETURNS(cTBString, cTBString::Number(ushort Num), ret)
ret.Format("%hu", Num);
RETURN(ret)
RETURNS(cTBString, cTBString::Number(int Num), ret)
ret.Format("%d", Num);
RETURN(ret)
RETURNS(cTBString, cTBString::Number(uint Num), ret)
ret.Format("%u", Num);
RETURN(ret)
RETURNS(cTBString, cTBString::Number(long Num), ret)
ret.Format("%ld", Num);
RETURN(ret)
RETURNS(cTBString, cTBString::Number(ulong Num), ret)
ret.Format("%lu", Num);
RETURN(ret)
RETURNS(cTBString, cTBString::Number(float Num), ret)
ret.Format("%f", Num);
RETURN(ret)
RETURNS(cTBString, cTBString::Number(double Num), ret)
ret.Format("%f", Num);
RETURN(ret)