mirror of
https://github.com/emsesp/EMS-ESP32.git
synced 2025-12-06 07:49:52 +03:00
fix standalone (use make run)
This commit is contained in:
proddy
@@ -1,863 +1,68 @@
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/*
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WString.cpp - String library for Wiring & Arduino
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...mostly rewritten by Paul Stoffregen...
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Copyright (c) 2009-10 Hernando Barragan. All rights reserved.
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Copyright 2011, Paul Stoffregen, paul@pjrc.com
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <Arduino.h>
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#include "WString.h"
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/*********************************************/
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/* Constructors */
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/*********************************************/
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/*
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* Copy string src to buffer dst of size dsize. At most dsize-1
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* chars will be copied. Always NUL terminates (unless dsize == 0).
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* Returns strlen(src); if retval >= dsize, truncation occurred.
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*
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* https://github.com/freebsd/freebsd/blob/master/sys/libkern/strlcpy.c
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*/
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size_t strlcpy(char * __restrict dst, const char * __restrict src, size_t dsize) {
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const char * osrc = src;
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size_t nleft = dsize;
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char * itoa(signed short value, char * result, const unsigned int base) {
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// check that the base if valid
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if (base < 2 || base > 36) {
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*result = '\0';
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return result;
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}
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char * ptr = result, *ptr1 = result, tmp_char;
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signed short tmp_value;
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do {
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tmp_value = value;
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value /= base;
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*ptr++ = "zyxwvutsrqponmlkjihgfedcba9876543210123456789abcdefghijklmnopqrstuvwxyz"[35 + (tmp_value - value * base)];
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} while (value);
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// Apply negative sign
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if (tmp_value < 0) {
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*ptr++ = '-';
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}
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*ptr-- = '\0';
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while (ptr1 < ptr) {
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tmp_char = *ptr;
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*ptr-- = *ptr1;
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*ptr1++ = tmp_char;
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}
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return result;
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}
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char* ltoa(long value, char* result, int base) {
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return itoa((int)value, result, base);
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}
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char* ultoa(unsigned long value, char* result, int base) {
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return itoa((unsigned int)value, result, base);
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}
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char * dtostrf(double number, signed char width, unsigned char prec, char *s) {
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bool negative = false;
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char* out = s;
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int fillme = width; // how many cells to fill for the integer part
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if (prec > 0) {
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fillme -= (prec+1);
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}
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// Handle negative numbers
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if (number < 0.0) {
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negative = true;
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fillme--;
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number = -number;
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}
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// Round correctly so that print(1.999, 2) prints as "2.00"
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// I optimized out most of the divisions
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double rounding = 2.0;
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for (unsigned int i = 0; i < prec; ++i)
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rounding *= 10.0;
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rounding = 1.0 / rounding;
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number += rounding;
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// Figure out how big our number really is
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double tenpow = 1.0;
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int digitcount = 1;
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double nextpow;
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while (number >= (nextpow = (10.0 * tenpow))) {
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tenpow = nextpow;
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digitcount++;
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}
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// minimal compensation for possible lack of precision (#7087 addition)
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// number *= 1 + std::numeric_limits<decltype(number)>::epsilon();
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number /= tenpow;
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fillme -= digitcount;
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// Pad unused cells with spaces
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while (fillme-- > 0) {
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*out++ = ' ';
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}
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// Handle negative sign
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if (negative) *out++ = '-';
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// Print the digits, and if necessary, the decimal point
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digitcount += prec;
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int8_t digit = 0;
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while (digitcount-- > 0) {
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digit = (int8_t)number;
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if (digit > 9) digit = 9; // insurance
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*out++ = (char)('0' | digit);
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if ((digitcount == prec) && (prec > 0)) {
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*out++ = '.';
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/* Copy as many bytes as will fit. */
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if (nleft != 0) {
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while (--nleft != 0) {
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if ((*dst++ = *src++) == '\0')
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break;
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}
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number -= digit;
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number *= 10.0;
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}
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// make sure the string is terminated
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*out = 0;
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return s;
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}
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/* Not enough room in dst, add NUL and traverse rest of src. */
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if (nleft == 0) {
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if (dsize != 0)
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*dst = '\0'; /* NUL-terminate dst */
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while (*src++)
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;
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}
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String::String(const char *cstr)
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{
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init();
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if (cstr) copy(cstr, strlen(cstr));
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}
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String::String(const String &value)
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{
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init();
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*this = value;
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}
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String::String(const __FlashStringHelper *pstr)
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{
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init();
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*this = pstr;
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}
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#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
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String::String(String &&rval)
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{
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init();
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move(rval);
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}
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String::String(StringSumHelper &&rval)
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{
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init();
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move(rval);
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}
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#endif
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String::String(char c)
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{
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init();
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char buf[2];
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buf[0] = c;
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buf[1] = 0;
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*this = buf;
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}
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String::String(unsigned char value, unsigned char base)
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{
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init();
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char buf[1 + 8 * sizeof(unsigned char)];
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itoa(value, buf, base);
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*this = buf;
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}
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String::String(int value, unsigned char base)
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{
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init();
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char buf[2 + 8 * sizeof(int)];
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itoa(value, buf, base);
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*this = buf;
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}
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String::String(unsigned int value, unsigned char base)
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{
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init();
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char buf[1 + 8 * sizeof(unsigned int)];
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itoa(value, buf, base);
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*this = buf;
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}
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String::String(long value, unsigned char base)
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{
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init();
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char buf[2 + 8 * sizeof(long)];
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ltoa(value, buf, base);
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*this = buf;
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}
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String::String(unsigned long value, unsigned char base)
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{
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init();
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char buf[1 + 8 * sizeof(unsigned long)];
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ultoa(value, buf, base);
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*this = buf;
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}
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String::String(float value, unsigned char decimalPlaces)
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{
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init();
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char buf[33];
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*this = dtostrf(value, (decimalPlaces + 2), decimalPlaces, buf);
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}
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String::String(double value, unsigned char decimalPlaces)
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{
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init();
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char buf[33];
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*this = dtostrf(value, (decimalPlaces + 2), decimalPlaces, buf);
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}
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String::~String()
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{
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free(buffer);
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}
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/*********************************************/
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/* Memory Management */
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/*********************************************/
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inline void String::init(void)
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{
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buffer = NULL;
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capacity = 0;
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len = 0;
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}
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void String::invalidate(void)
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{
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if (buffer) free(buffer);
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buffer = NULL;
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capacity = len = 0;
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}
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unsigned char String::reserve(unsigned int size)
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{
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if (buffer && capacity >= size) return 1;
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if (changeBuffer(size)) {
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if (len == 0) buffer[0] = 0;
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return 1;
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}
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return 0;
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}
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unsigned char String::changeBuffer(unsigned int maxStrLen)
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{
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char *newbuffer = (char *)realloc(buffer, maxStrLen + 1);
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if (newbuffer) {
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buffer = newbuffer;
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capacity = maxStrLen;
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return 1;
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}
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return 0;
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}
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/*********************************************/
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/* Copy and Move */
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/*********************************************/
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String & String::copy(const char *cstr, unsigned int length)
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{
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if (!reserve(length)) {
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invalidate();
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return *this;
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}
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len = length;
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strcpy(buffer, cstr);
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return *this;
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return (src - osrc - 1); /* count does not include NUL */
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}
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/*
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String & String::copy(const char *pstr, unsigned int length)
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{
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if (!reserve(length)) {
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invalidate();
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return *this;
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}
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len = length;
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strcpy_P(buffer, pstr);
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return *this;
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* Appends src to string dst of size siz (unlike strncat, siz is the
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* full size of dst, not space left). At most siz-1 characters
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* will be copied. Always NUL terminates (unless siz <= strlen(dst)).
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* Returns strlen(src) + MIN(siz, strlen(initial dst)).
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* If retval >= siz, truncation occurred.
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*
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* https://github.com/freebsd/freebsd/blob/master/sys/libkern/strlcat.c
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*/
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size_t strlcat(char * dst, const char * src, size_t siz) {
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char * d = dst;
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const char * s = src;
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size_t n = siz;
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size_t dlen;
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/* Find the end of dst and adjust bytes left but don't go past end */
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while (n-- != 0 && *d != '\0')
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d++;
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dlen = d - dst;
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n = siz - dlen;
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if (n == 0)
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return (dlen + strlen(s));
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while (*s != '\0') {
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if (n != 1) {
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*d++ = *s;
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n--;
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}
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s++;
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}
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*d = '\0';
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return (dlen + (s - src)); /* count does not include NUL */
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}
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*/
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#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
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void String::move(String &rhs)
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{
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if (buffer) {
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if (rhs && capacity >= rhs.len) {
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strcpy(buffer, rhs.buffer);
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||||
len = rhs.len;
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rhs.len = 0;
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return;
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} else {
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||||
free(buffer);
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}
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||||
}
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buffer = rhs.buffer;
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||||
capacity = rhs.capacity;
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||||
len = rhs.len;
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||||
rhs.buffer = NULL;
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||||
rhs.capacity = 0;
|
||||
rhs.len = 0;
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||||
}
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#endif
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|
||||
String & String::operator = (const String &rhs)
|
||||
{
|
||||
if (this == &rhs) return *this;
|
||||
|
||||
if (rhs.buffer) copy(rhs.buffer, rhs.len);
|
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else invalidate();
|
||||
|
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return *this;
|
||||
}
|
||||
|
||||
#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
|
||||
String & String::operator = (String &&rval)
|
||||
{
|
||||
if (this != &rval) move(rval);
|
||||
return *this;
|
||||
}
|
||||
|
||||
String & String::operator = (StringSumHelper &&rval)
|
||||
{
|
||||
if (this != &rval) move(rval);
|
||||
return *this;
|
||||
}
|
||||
#endif
|
||||
|
||||
String & String::operator = (const char *cstr)
|
||||
{
|
||||
if (cstr) copy(cstr, strlen(cstr));
|
||||
else invalidate();
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
String & String::operator = (const __FlashStringHelper *pstr)
|
||||
{
|
||||
// if (pstr) copy(pstr, strlen_P((PGM_P)pstr));
|
||||
// else invalidate();
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* concat */
|
||||
/*********************************************/
|
||||
|
||||
unsigned char String::concat(const String &s)
|
||||
{
|
||||
return concat(s.buffer, s.len);
|
||||
}
|
||||
|
||||
unsigned char String::concat(const char *cstr, unsigned int length)
|
||||
{
|
||||
unsigned int newlen = len + length;
|
||||
if (!cstr) return 0;
|
||||
if (length == 0) return 1;
|
||||
if (!reserve(newlen)) return 0;
|
||||
strcpy(buffer + len, cstr);
|
||||
len = newlen;
|
||||
return 1;
|
||||
}
|
||||
|
||||
unsigned char String::concat(const char *cstr)
|
||||
{
|
||||
if (!cstr) return 0;
|
||||
return concat(cstr, strlen(cstr));
|
||||
}
|
||||
|
||||
unsigned char String::concat(char c)
|
||||
{
|
||||
char buf[2];
|
||||
buf[0] = c;
|
||||
buf[1] = 0;
|
||||
return concat(buf, 1);
|
||||
}
|
||||
|
||||
unsigned char String::concat(unsigned char num)
|
||||
{
|
||||
char buf[1 + 3 * sizeof(unsigned char)];
|
||||
itoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(int num)
|
||||
{
|
||||
char buf[2 + 3 * sizeof(int)];
|
||||
itoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(unsigned int num)
|
||||
{
|
||||
char buf[1 + 3 * sizeof(unsigned int)];
|
||||
itoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(long num)
|
||||
{
|
||||
char buf[2 + 3 * sizeof(long)];
|
||||
ltoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(unsigned long num)
|
||||
{
|
||||
char buf[1 + 3 * sizeof(unsigned long)];
|
||||
ultoa(num, buf, 10);
|
||||
return concat(buf, strlen(buf));
|
||||
}
|
||||
|
||||
unsigned char String::concat(float num)
|
||||
{
|
||||
char buf[20];
|
||||
char* string = dtostrf(num, 4, 2, buf);
|
||||
return concat(string, strlen(string));
|
||||
}
|
||||
|
||||
unsigned char String::concat(double num)
|
||||
{
|
||||
char buf[20];
|
||||
char* string = dtostrf(num, 4, 2, buf);
|
||||
return concat(string, strlen(string));
|
||||
}
|
||||
|
||||
unsigned char String::concat(const __FlashStringHelper * str)
|
||||
{
|
||||
if (!str) return 0;
|
||||
int length = strlen_P((const char *) str);
|
||||
if (length == 0) return 1;
|
||||
unsigned int newlen = len + length;
|
||||
if (!reserve(newlen)) return 0;
|
||||
strcpy_P(buffer + len, (const char *) str);
|
||||
len = newlen;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Concatenate */
|
||||
/*********************************************/
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, const String &rhs)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(rhs.buffer, rhs.len)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, const char *cstr)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!cstr || !a.concat(cstr, strlen(cstr))) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, char c)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(c)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, unsigned char num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, int num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, unsigned int num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, long num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, unsigned long num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, float num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, double num)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(num)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
StringSumHelper & operator + (const StringSumHelper &lhs, const __FlashStringHelper *rhs)
|
||||
{
|
||||
StringSumHelper &a = const_cast<StringSumHelper&>(lhs);
|
||||
if (!a.concat(rhs)) a.invalidate();
|
||||
return a;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Comparison */
|
||||
/*********************************************/
|
||||
|
||||
int String::compareTo(const String &s) const
|
||||
{
|
||||
if (!buffer || !s.buffer) {
|
||||
if (s.buffer && s.len > 0) return 0 - *(unsigned char *)s.buffer;
|
||||
if (buffer && len > 0) return *(unsigned char *)buffer;
|
||||
return 0;
|
||||
}
|
||||
return strcmp(buffer, s.buffer);
|
||||
}
|
||||
|
||||
unsigned char String::isEmpty() const {
|
||||
return (len == 0);
|
||||
}
|
||||
|
||||
unsigned char String::equals(const String &s2) const
|
||||
{
|
||||
return (len == s2.len && compareTo(s2) == 0);
|
||||
}
|
||||
|
||||
unsigned char String::equals(const char *cstr) const
|
||||
{
|
||||
if (len == 0) return (cstr == NULL || *cstr == 0);
|
||||
if (cstr == NULL) return buffer[0] == 0;
|
||||
return strcmp(buffer, cstr) == 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator<(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) < 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator>(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) > 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator<=(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) <= 0;
|
||||
}
|
||||
|
||||
unsigned char String::operator>=(const String &rhs) const
|
||||
{
|
||||
return compareTo(rhs) >= 0;
|
||||
}
|
||||
|
||||
unsigned char String::equalsIgnoreCase( const String &s2 ) const
|
||||
{
|
||||
if (this == &s2) return 1;
|
||||
if (len != s2.len) return 0;
|
||||
if (len == 0) return 1;
|
||||
const char *p1 = buffer;
|
||||
const char *p2 = s2.buffer;
|
||||
while (*p1) {
|
||||
if (tolower(*p1++) != tolower(*p2++)) return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
unsigned char String::startsWith( const String &s2 ) const
|
||||
{
|
||||
if (len < s2.len) return 0;
|
||||
return startsWith(s2, 0);
|
||||
}
|
||||
|
||||
unsigned char String::startsWith( const String &s2, unsigned int offset ) const
|
||||
{
|
||||
if (offset > len - s2.len || !buffer || !s2.buffer) return 0;
|
||||
return strncmp( &buffer[offset], s2.buffer, s2.len ) == 0;
|
||||
}
|
||||
|
||||
unsigned char String::endsWith( const String &s2 ) const
|
||||
{
|
||||
if ( len < s2.len || !buffer || !s2.buffer) return 0;
|
||||
return strcmp(&buffer[len - s2.len], s2.buffer) == 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Character Access */
|
||||
/*********************************************/
|
||||
|
||||
char String::charAt(unsigned int loc) const
|
||||
{
|
||||
return operator[](loc);
|
||||
}
|
||||
|
||||
void String::setCharAt(unsigned int loc, char c)
|
||||
{
|
||||
if (loc < len) buffer[loc] = c;
|
||||
}
|
||||
|
||||
char & String::operator[](unsigned int index)
|
||||
{
|
||||
static char dummy_writable_char;
|
||||
if (index >= len || !buffer) {
|
||||
dummy_writable_char = 0;
|
||||
return dummy_writable_char;
|
||||
}
|
||||
return buffer[index];
|
||||
}
|
||||
|
||||
char String::operator[]( unsigned int index ) const
|
||||
{
|
||||
if (index >= len || !buffer) return 0;
|
||||
return buffer[index];
|
||||
}
|
||||
|
||||
void String::getBytes(unsigned char *buf, unsigned int bufsize, unsigned int index) const
|
||||
{
|
||||
if (!bufsize || !buf) return;
|
||||
if (index >= len) {
|
||||
buf[0] = 0;
|
||||
return;
|
||||
}
|
||||
unsigned int n = bufsize - 1;
|
||||
if (n > len - index) n = len - index;
|
||||
strncpy((char *)buf, buffer + index, n);
|
||||
buf[n] = 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Search */
|
||||
/*********************************************/
|
||||
|
||||
int String::indexOf(char c) const
|
||||
{
|
||||
return indexOf(c, 0);
|
||||
}
|
||||
|
||||
int String::indexOf( char ch, unsigned int fromIndex ) const
|
||||
{
|
||||
if (fromIndex >= len) return -1;
|
||||
const char* temp = strchr(buffer + fromIndex, ch);
|
||||
if (temp == NULL) return -1;
|
||||
return temp - buffer;
|
||||
}
|
||||
|
||||
int String::indexOf(const String &s2) const
|
||||
{
|
||||
return indexOf(s2, 0);
|
||||
}
|
||||
|
||||
int String::indexOf(const String &s2, unsigned int fromIndex) const
|
||||
{
|
||||
if (fromIndex >= len) return -1;
|
||||
const char *found = strstr(buffer + fromIndex, s2.buffer);
|
||||
if (found == NULL) return -1;
|
||||
return found - buffer;
|
||||
}
|
||||
|
||||
int String::lastIndexOf( char theChar ) const
|
||||
{
|
||||
return lastIndexOf(theChar, len - 1);
|
||||
}
|
||||
|
||||
int String::lastIndexOf(char ch, unsigned int fromIndex) const
|
||||
{
|
||||
if (fromIndex >= len) return -1;
|
||||
char tempchar = buffer[fromIndex + 1];
|
||||
buffer[fromIndex + 1] = '\0';
|
||||
char* temp = strrchr( buffer, ch );
|
||||
buffer[fromIndex + 1] = tempchar;
|
||||
if (temp == NULL) return -1;
|
||||
return temp - buffer;
|
||||
}
|
||||
|
||||
int String::lastIndexOf(const String &s2) const
|
||||
{
|
||||
return lastIndexOf(s2, len - s2.len);
|
||||
}
|
||||
|
||||
int String::lastIndexOf(const String &s2, unsigned int fromIndex) const
|
||||
{
|
||||
if (s2.len == 0 || len == 0 || s2.len > len) return -1;
|
||||
if (fromIndex >= len) fromIndex = len - 1;
|
||||
int found = -1;
|
||||
for (char *p = buffer; p <= buffer + fromIndex; p++) {
|
||||
p = strstr(p, s2.buffer);
|
||||
if (!p) break;
|
||||
if ((unsigned int)(p - buffer) <= fromIndex) found = p - buffer;
|
||||
}
|
||||
return found;
|
||||
}
|
||||
|
||||
String String::substring(unsigned int left, unsigned int right) const
|
||||
{
|
||||
if (left > right) {
|
||||
unsigned int temp = right;
|
||||
right = left;
|
||||
left = temp;
|
||||
}
|
||||
String out;
|
||||
if (left >= len) return out;
|
||||
if (right > len) right = len;
|
||||
char temp = buffer[right]; // save the replaced character
|
||||
buffer[right] = '\0';
|
||||
out = buffer + left; // pointer arithmetic
|
||||
buffer[right] = temp; //restore character
|
||||
return out;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Modification */
|
||||
/*********************************************/
|
||||
|
||||
void String::replace(char find, char replace)
|
||||
{
|
||||
if (!buffer) return;
|
||||
for (char *p = buffer; *p; p++) {
|
||||
if (*p == find) *p = replace;
|
||||
}
|
||||
}
|
||||
|
||||
void String::replace(const String& find, const String& replace)
|
||||
{
|
||||
if (len == 0 || find.len == 0) return;
|
||||
int diff = replace.len - find.len;
|
||||
char *readFrom = buffer;
|
||||
char *foundAt;
|
||||
if (diff == 0) {
|
||||
while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
|
||||
memcpy(foundAt, replace.buffer, replace.len);
|
||||
readFrom = foundAt + replace.len;
|
||||
}
|
||||
} else if (diff < 0) {
|
||||
char *writeTo = buffer;
|
||||
while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
|
||||
unsigned int n = foundAt - readFrom;
|
||||
memcpy(writeTo, readFrom, n);
|
||||
writeTo += n;
|
||||
memcpy(writeTo, replace.buffer, replace.len);
|
||||
writeTo += replace.len;
|
||||
readFrom = foundAt + find.len;
|
||||
len += diff;
|
||||
}
|
||||
strcpy(writeTo, readFrom);
|
||||
} else {
|
||||
unsigned int size = len; // compute size needed for result
|
||||
while ((foundAt = strstr(readFrom, find.buffer)) != NULL) {
|
||||
readFrom = foundAt + find.len;
|
||||
size += diff;
|
||||
}
|
||||
if (size == len) return;
|
||||
if (size > capacity && !changeBuffer(size)) return;
|
||||
int index = len - 1;
|
||||
while (index >= 0 && (index = lastIndexOf(find, index)) >= 0) {
|
||||
readFrom = buffer + index + find.len;
|
||||
memmove(readFrom + diff, readFrom, len - (readFrom - buffer));
|
||||
len += diff;
|
||||
buffer[len] = 0;
|
||||
memcpy(buffer + index, replace.buffer, replace.len);
|
||||
index--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void String::remove(unsigned int index){
|
||||
// Pass the biggest integer as the count. The remove method
|
||||
// below will take care of truncating it at the end of the
|
||||
// string.
|
||||
remove(index, (unsigned int)-1);
|
||||
}
|
||||
|
||||
void String::remove(unsigned int index, unsigned int count){
|
||||
if (index >= len) { return; }
|
||||
if (count <= 0) { return; }
|
||||
if (count > len - index) { count = len - index; }
|
||||
char *writeTo = buffer + index;
|
||||
len = len - count;
|
||||
strncpy(writeTo, buffer + index + count,len - index);
|
||||
buffer[len] = 0;
|
||||
}
|
||||
|
||||
void String::toLowerCase(void)
|
||||
{
|
||||
if (!buffer) return;
|
||||
for (char *p = buffer; *p; p++) {
|
||||
*p = tolower(*p);
|
||||
}
|
||||
}
|
||||
|
||||
void String::toUpperCase(void)
|
||||
{
|
||||
if (!buffer) return;
|
||||
for (char *p = buffer; *p; p++) {
|
||||
*p = toupper(*p);
|
||||
}
|
||||
}
|
||||
|
||||
void String::trim(void)
|
||||
{
|
||||
if (!buffer || len == 0) return;
|
||||
char *begin = buffer;
|
||||
while (isspace(*begin)) begin++;
|
||||
char *end = buffer + len - 1;
|
||||
while (isspace(*end) && end >= begin) end--;
|
||||
len = end + 1 - begin;
|
||||
if (begin > buffer) memcpy(buffer, begin, len);
|
||||
buffer[len] = 0;
|
||||
}
|
||||
|
||||
/*********************************************/
|
||||
/* Parsing / Conversion */
|
||||
/*********************************************/
|
||||
|
||||
long String::toInt(void) const
|
||||
{
|
||||
if (buffer) return atol(buffer);
|
||||
return 0;
|
||||
}
|
||||
|
||||
float String::toFloat(void) const
|
||||
{
|
||||
return float(toDouble());
|
||||
}
|
||||
|
||||
double String::toDouble(void) const
|
||||
{
|
||||
if (buffer) return atof(buffer);
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user