Robert Ellis / Util

Utility library. Some string and mbed memory utilities.

Dependents:   19E042PIM_T3_2020_0639

stringUtils.cpp@0:3d93ff64fdee, 2011-06-19 (annotated)

Committer:
Phlaphead
Date:
Sun Jun 19 13:13:00 2011 +0000
Revision:
0:3d93ff64fdee
Initial Revision

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Phlaphead 0:3d93ff64fdee 1
Phlaphead 0:3d93ff64fdee 2
Phlaphead 0:3d93ff64fdee 3 #include "stringUtils.h"
Phlaphead 0:3d93ff64fdee 4
Phlaphead 0:3d93ff64fdee 5 using namespace std;
Phlaphead 0:3d93ff64fdee 6
Phlaphead 0:3d93ff64fdee 7 string trim(const string& src, const string& c)
Phlaphead 0:3d93ff64fdee 8 {
Phlaphead 0:3d93ff64fdee 9 int p2 = src.find_last_not_of(c);
Phlaphead 0:3d93ff64fdee 10 if (p2 == string::npos)
Phlaphead 0:3d93ff64fdee 11 {
Phlaphead 0:3d93ff64fdee 12 return string();
Phlaphead 0:3d93ff64fdee 13 }
Phlaphead 0:3d93ff64fdee 14
Phlaphead 0:3d93ff64fdee 15 int p1 = src.find_first_not_of(c);
Phlaphead 0:3d93ff64fdee 16 if (p1 == string::npos)
Phlaphead 0:3d93ff64fdee 17 {
Phlaphead 0:3d93ff64fdee 18 p1 = 0;
Phlaphead 0:3d93ff64fdee 19 }
Phlaphead 0:3d93ff64fdee 20
Phlaphead 0:3d93ff64fdee 21 return src.substr(p1, (p2-p1)+1);
Phlaphead 0:3d93ff64fdee 22 }
Phlaphead 0:3d93ff64fdee 23
Phlaphead 0:3d93ff64fdee 24 vector<string> tokenize(const string& str, const string& delimiters)
Phlaphead 0:3d93ff64fdee 25 {
Phlaphead 0:3d93ff64fdee 26 vector<string> tokens;
Phlaphead 0:3d93ff64fdee 27
Phlaphead 0:3d93ff64fdee 28 // Skip delimiters at beginning.
Phlaphead 0:3d93ff64fdee 29 string::size_type lastPos = str.find_first_not_of(delimiters, 0);
Phlaphead 0:3d93ff64fdee 30 // Find first "non-delimiter".
Phlaphead 0:3d93ff64fdee 31 string::size_type pos = str.find_first_of(delimiters, lastPos);
Phlaphead 0:3d93ff64fdee 32
Phlaphead 0:3d93ff64fdee 33 while (string::npos != pos || string::npos != lastPos)
Phlaphead 0:3d93ff64fdee 34 {
Phlaphead 0:3d93ff64fdee 35 // Found a token, add it to the vector.
Phlaphead 0:3d93ff64fdee 36 tokens.push_back(str.substr(lastPos, pos - lastPos));
Phlaphead 0:3d93ff64fdee 37 // Skip delimiters. Note the "not_of"
Phlaphead 0:3d93ff64fdee 38 lastPos = str.find_first_not_of(delimiters, pos);
Phlaphead 0:3d93ff64fdee 39 // Find next "non-delimiter"
Phlaphead 0:3d93ff64fdee 40 pos = str.find_first_of(delimiters, lastPos);
Phlaphead 0:3d93ff64fdee 41 }
Phlaphead 0:3d93ff64fdee 42
Phlaphead 0:3d93ff64fdee 43 return tokens;
Phlaphead 0:3d93ff64fdee 44 }